CN105508332A - Assembly technical method of mode selecting valve based on interference fit seal - Google Patents
Assembly technical method of mode selecting valve based on interference fit seal Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 125000006850 spacer group Chemical group 0.000 claims abstract description 20
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 5
- 239000010935 stainless steel Substances 0.000 claims abstract description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 3
- 238000007789 sealing Methods 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 14
- 230000008014 freezing Effects 0.000 claims description 11
- 238000007710 freezing Methods 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 6
- 238000013461 design Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000000956 alloy Substances 0.000 abstract description 2
- 238000011161 development Methods 0.000 abstract description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
Description
技术领域 technical field
本发明属于液压技术领域，涉及作动器用对采用基于过盈配合密封方式的模态选择阀的装配。 The invention belongs to the field of hydraulic technology, and relates to the assembly of a mode selection valve based on an interference fit sealing method for an actuator.
背景技术 Background technique
传统的模态选择阀阀套均使用多组环槽、密封胶圈来实现与壳体油路间的沟通和隔离，这使得壳体中油路的数量比较庞大，且油路孔的位置比较固定，壳体设计比较复杂导致整个作动器的体积和重量较大。已无法满足现代飞机安装空间和减重的要求。沟槽化模态选择阀是将传统的转换阀、旁通阀、回中阀的功能集成一体化创新，取消了以胶圈为密封方式的传统密封方法。采用阀套与壳体之间过盈配合的结构进行密封。相比传统模态选择阀，避免了密封胶圈的使用，降低了作动器的成本。由于航空减重要求，壳体采用铝合金材料。与钢材料材料相比，铝合金材料膨胀系数大且较软，在两种不同材料下，沟槽化模态选择阀的装配质量将直接沟槽化模态选择的阀性能。因此在不同材料下，针对基于过盈配合密封沟槽化模态选择阀的装配，本发明采用温差法对温度和装配工序进行合理控制，以快捷、准确的实现沟槽化模态选择阀的装配。 Traditional modal selection valve sleeves use multiple sets of ring grooves and sealing rubber rings to realize communication and isolation with the oil passages of the housing, which makes the number of oil passages in the housing relatively large, and the positions of the oil passage holes are relatively fixed , the shell design is relatively complex, resulting in a large volume and weight of the entire actuator. It has been unable to meet the requirements of modern aircraft installation space and weight reduction. The grooved modal selector valve is an innovative integration of the functions of traditional switching valves, bypass valves, and return valves, and cancels the traditional sealing method that uses rubber rings as the sealing method. The structure of interference fit between the valve sleeve and the housing is used for sealing. Compared with the traditional mode selection valve, the use of sealing rubber ring is avoided, and the cost of the actuator is reduced. Due to aviation weight reduction requirements, the shell is made of aluminum alloy. Compared with the steel material, the expansion coefficient of the aluminum alloy material is larger and softer. Under the two different materials, the assembly quality of the grooved modal selection valve will directly affect the performance of the grooved modal selection valve. Therefore, under different materials, for the assembly of the grooved modal selection valve based on the interference fit seal, the present invention uses the temperature difference method to reasonably control the temperature and assembly process, so as to quickly and accurately realize the grooved modal selection valve. assembly.
发明内容 Contents of the invention
本发明的目的是：本发明采用温差法，对两种不同的材料下，沟槽化模态选择阀与壳体之间过盈配合的密封结构，通过对温度和装配工序进行合理控制，提高装配质量，以保证沟槽化模态选择阀的性能进而满足沟槽一体化作动器的研制需求。 The purpose of the present invention is: the present invention adopts the temperature difference method to improve the sealing structure of the interference fit between the grooved modal selection valve and the housing under two different materials by reasonably controlling the temperature and the assembly process. Assembly quality to ensure the performance of the grooved modal selection valve and meet the development requirements of the grooved integrated actuator.
本发明的技术方案是：首先是根据沟槽化模态选择阀的最终位置在壳体和沟槽模态选择阀套上相应的位置分别设计好定位销孔和定位槽，装配前，先将圆柱销装入壳体中。其次，根据沟槽模态选择阀和壳体间过盈量的大小，选择合适的温度范围对壳体进行加热，沟槽化模态选择阀根据实际情况选择常温或提前冷冻。再次，按照主阀套，隔套组件、备阀套的安装顺序，在常温下依次完成沟槽化模态选择阀的热装配过程。最后，在常温下完成其他零件的装配，所有的装配过程在常温下进行。 The technical solution of the present invention is: first, according to the final position of the grooved mode selection valve, the positioning pin hole and the positioning groove are respectively designed on the corresponding positions of the housing and the grooved mode selection valve sleeve. The cylindrical pin fits into the housing. Secondly, according to the size of the interference between the grooved modal selection valve and the shell, an appropriate temperature range is selected to heat the shell, and the grooved modal selection valve selects normal temperature or advance freezing according to the actual situation. Thirdly, according to the installation sequence of the main valve sleeve, the spacer assembly, and the spare valve sleeve, the thermal assembly process of the grooved modal selection valve is completed sequentially at room temperature. Finally, the assembly of other parts is completed at room temperature, and all assembly processes are carried out at room temperature.
基于过盈配合密封的模态选择阀装配工艺方法，其特征在于：模态选择阀由圆柱销1、主阀芯2、主阀套3、隔套组件4、备阀套5、备阀芯6、壳体7组成，主阀套、备阀套与壳体之间为过盈配合密封结构，隔套组件与壳体之间为间隙配合，在隔套组件上有密封胶圈8进行密封，壳体为铝合金材料，其他零件1～7为不锈钢材料，本装配工艺方法包括以下步骤： The modal selection valve assembly process method based on interference fit seal is characterized in that: the modal selection valve is composed of a cylindrical pin 1, a main valve core 2, a main valve sleeve 3, a spacer assembly 4, a backup valve sleeve 5, and a backup valve core 6. The shell is composed of 7, the main valve sleeve, the spare valve sleeve and the shell are of interference fit sealing structure, the spacer assembly and the shell are of clearance fit, and there is a sealing rubber ring 8 on the spacer assembly for sealing , the shell is made of aluminum alloy, and other parts 1 to 7 are made of stainless steel. This assembly process method includes the following steps:
第一步，首先是根据沟槽化模态选择阀的最终位置在壳体和沟槽模态选择阀阀套上相应的位置分别设计好定位销孔和定位槽，装配前，先将圆柱销装入壳体中。 The first step is to design the positioning pin holes and positioning grooves on the corresponding positions of the housing and the grooved modal selection valve sleeve respectively according to the final position of the grooved modal selection valve. into the housing.
第二步，根据沟槽模态选择阀和壳体间过盈量的大小，选择一定温度范围对壳体进行加热，模态选择阀根据实际情况选择常温或提前冷冻。 In the second step, according to the size of the interference between the groove mode selection valve and the housing, a certain temperature range is selected to heat the housing, and the mode selection valve selects normal temperature or advance freezing according to the actual situation.
第三步，按照主阀套，隔套组件、备阀套的安装顺序，在常温下依次完成沟槽化模态选择阀的热装配过程。 In the third step, according to the installation sequence of the main valve sleeve, the spacer assembly, and the backup valve sleeve, the thermal assembly process of the grooved modal selection valve is completed sequentially at room temperature.
所说的沟槽化模态选择阀和壳体之间的过盈量范围为：0.004mm～0.02mm；壳体加热的温度范围为：70℃～155℃，加热时间为2～3小时；提前冷冻的温度控制范围为-40℃～-65℃，冷冻的时间为2～3小时。 The range of interference between the grooved modal selection valve and the shell is: 0.004mm-0.02mm; the temperature range of shell heating is: 70°C-155°C, and the heating time is 2-3 hours; The temperature control range for pre-freezing is -40°C to -65°C, and the freezing time is 2 to 3 hours.
本发明的优点是：本发明一方面通过圆柱销来对沟槽化模态选择阀进行角向定位，可实现快速安装并提高了装配过程中沟槽化模态选择阀表面沟槽与壳体油路孔的对接精度。另一方面，通过对温差的合理控制和装配工序的合理安排，可提高沟槽化模态选择阀装配的效率和一次成活率。 The advantages of the present invention are: on the one hand, the present invention uses cylindrical pins to angularly position the grooved mode selection valve, which can realize quick installation and improve the surface groove and housing of the grooved mode selection valve during the assembly process. The butt joint accuracy of the oil passage hole. On the other hand, through the reasonable control of the temperature difference and the reasonable arrangement of the assembly process, the assembly efficiency and first-time survival rate of the grooved modal selection valve can be improved.
附图说明 Description of drawings
图1是本发明的装配示意图。它由圆柱销1、主阀芯2、主阀套3、隔套组件4、备阀套5、备阀芯6、壳体7组成。在隔套组件上有密封胶圈8进行密封。 Figure 1 is a schematic diagram of the assembly of the present invention. It is composed of cylindrical pin 1, main valve core 2, main valve sleeve 3, spacer assembly 4, backup valve sleeve 5, backup valve core 6 and housing 7. A sealing rubber ring 8 is arranged on the spacer assembly for sealing.
具体实施方式 detailed description
下面对本发明做进一步详细说明。包括以下步骤： The present invention will be described in further detail below. Include the following steps:
第一步，首先是根据最终状态的位置在壳体和沟槽模态选择阀套上相应的位置分别设计好定位销孔和定位槽，装配前，先将圆柱销装入壳体中。在装配前，对壳体、主阀套、主阀芯、备阀套、备阀芯、隔套组件的清洗是很重要的环节，污染颗粒会影响装配的质量。 The first step is to design the positioning pin holes and positioning grooves at the corresponding positions on the housing and groove mode selection valve sleeve according to the position of the final state, and install the cylindrical pin into the housing before assembly. Before assembly, it is very important to clean the shell, main valve sleeve, main valve core, spare valve sleeve, spare valve core, and spacer components. Contaminated particles will affect the quality of assembly.
第二步，根据沟槽模态选择阀阀套和壳体间过盈量的范围，选择合适的温度范围对壳体进行加热，加热时间要充分，使得壳体膨胀均匀且稳定。沟槽化模态选择阀套根据实际情况决定选择常温装配或提前冷冻再装配。 The second step is to select the range of interference between the valve sleeve and the shell according to the groove mode, and select a suitable temperature range to heat the shell. The heating time should be sufficient to make the expansion of the shell uniform and stable. The grooved modal selection valve sleeve can be assembled at normal temperature or frozen in advance according to the actual situation.
第三步，按照主阀套，隔套组件、备阀套的安装顺序在常温下依次完成热装配过程。其中，隔套组件和壳体是间隙配合，在隔套组件上配有密封胶圈，因此，隔套组件在装配前需要提前冷冻处理，以使密封胶圈充分收缩，方便装入。 The third step is to complete the thermal assembly process at room temperature in accordance with the installation sequence of the main valve sleeve, the spacer assembly and the spare valve sleeve. Wherein, the spacer assembly and the housing are clearance fit, and the spacer assembly is equipped with a sealing rubber ring. Therefore, the spacer assembly needs to be frozen in advance before assembly, so that the sealing rubber ring can be fully shrunk for easy loading.
第四步，待壳体温度降到常温后，完成其他零件的装配。 The fourth step is to complete the assembly of other parts after the temperature of the shell drops to normal temperature.
所说的沟槽化模态选择阀和壳体间过盈量范围为：0.004mm～0.02mm；壳体加热的温度范围为：70℃～155℃，加热时间为2～3小时；提前冷冻的温度控制范围为-40℃～-65℃，冷冻的时间为2～3小时。 The range of interference between the grooved modal selection valve and the shell is: 0.004mm ~ 0.02mm; the temperature range of shell heating is: 70°C ~ 155°C, and the heating time is 2 ~ 3 hours; freezing in advance The temperature control range is -40°C to -65°C, and the freezing time is 2 to 3 hours.
在本发明的一个实施例中，所说的沟槽化模态选择阀与壳体之间的过盈量为0.0065mm，壳体加热温度为100℃，加热时间为2小时；阀套、隔套组件进行提前冷冻，冷冻的温度为-40℃，冷冻时间为2小时；经试验，主阀套、隔套组件和备阀套均能准确、顺利装入。 In one embodiment of the present invention, the interference between the grooved modal selection valve and the housing is 0.0065mm, the heating temperature of the housing is 100°C, and the heating time is 2 hours; The sleeve assembly is frozen in advance, the freezing temperature is -40°C, and the freezing time is 2 hours; after testing, the main valve sleeve, spacer sleeve assembly and spare valve sleeve can all be installed accurately and smoothly.
表1：两种不同材料的物理性能。 Table 1: Physical properties of two different materials.
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Cited By (3)
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Application publication date: 20160420 |