CN204162353U - Large bearing capacity scissor-type lifting platform - Google Patents

Abstract

The utility model proposes a kind of large bearing capacity scissor-type lifting platform, mainly comprise bottom parts, lifting part upper mounting plate part and drive part, its principal character is simple and reliable for structure, bearing capacity is large, control simple, be easy to realize, aloft work and uplifting and unloading machineries apparatus field can be widely used in, can symmetrically slide in the lifting mechanism both sides of this telescopic lifting platform, stressed symmetrical all the time, center of gravity all the time on centerline, so its main advantage large and stress equalization that is bearing capacity, its performance is far longer than the lifting mechanisms such as existing scissors mechanism, can make after applying aloft work and cargo handing efficiency higher, safety is more secure.

Description

Large capacity scissor lift platform

technical field

The utility model relates to the field of lifts, in particular to a scissor lift platform.

Background technique

Since most manufacturers or individuals choose more multi-storey buildings in order to improve the utilization rate of the site, a device is also needed to facilitate the lifting of goods up and down. At present, the development of the lifting mechanism is at a peak state. The scissor lift platform relies on the expansion and folding of the scissor support frame to complete the lifting of the upper platform, so as to achieve the purpose of lifting goods or working at heights. Its power is through the linear motion unit. (such as hydraulic cylinders, etc.) to promote the expansion and folding of the scissors. It makes aerial work more efficient and safer.

Traditionally, one end of the scissor mechanism in the common scissor lift platform is fixed, which causes that if the lifting platform rises to a higher height, the two supporting points will lean against the side of the upper platform, so that the upper platform is in a certain position. A state similar to a "cantilever beam", so that the overall rigidity of the lifting platform is greatly reduced, and the running stability is reduced, and it is impossible to complete the lifting of heavy goods. State, the distance between the two support points of the lifting platform should be as far as possible, which causes the lifting height of the lifting platform to be very limited.

Utility model content

The purpose of this utility model is to overcome the problem of uneven bearing capacity of the traditional scissor mechanism lifting platform. Because one end of the traditional type of lifting platform is fixed and the other end slides, there is an asymmetry of the force point after lifting, and the force on the platform is uneven. Both have high requirements on the rigidity of the platform and folding rods, limited bearing capacity and insufficient lifting height, and seek a mechanical device that balances the force on the platform, has a large bearing capacity, and is simple in structure and easy to implement.

In order to achieve the above purpose, the large-capacity scissor lift platform is mainly composed of a bottom plate part, a driving part, a lifting mechanism and an upper platform part.

Bottom plate: composed of bottom plate main body (1), bottom plate connecting rod fixing frame (3) and bottom plate chute (17);

Lifting mechanism: composed of connecting rod (8), scissors folding rod (7), bottom plate short connecting rod (16), upper platform short connecting rod (15), bottom plate hinge shaft (2), upper platform hinge shaft (13), The bottom plate scissors short hinge shaft (4), the upper platform scissors short hinge shaft (14), the scissor rod connecting shaft (9), and the roller (5);

Upper platform part: composed of upper platform main body (11), upper platform connecting rod fixing frame (12) and upper platform chute (10);

Driving part: the driving part is a linear motor (6), which is installed on the main body (1) of the bottom plate.

The uppermost scissors folding rod of the lifting mechanism and the upper platform short connecting rod (15) support the upper platform part and the joints are all hinged, while the scissors folding rod and the upper platform pass through the roller (5) and the upper platform chute (10) The matching rolling connection of the lifting mechanism and the bottom plate part is the same as that of the lifting mechanism and the upper platform part; the driving part is composed of a linear motor (6) and is installed on the bottom plate main body (1).

Compared with the common scissors mechanism, this device has the advantages of: (1) the two symmetrical scissors folding bars can slide in the chute by the rollers, so that the same distance of rising shortens the stroke of the driving part; (2) ) is connected to the main body of the bottom plate and the main body of the upper platform through the short connecting rod (16) of the bottom plate and the short connecting rod (15) of the upper platform in the middle, which ensures that the lifting mechanism can lift vertically; (3) for the upper platform, the The support is always symmetrical about the center, which improves the rigidity of the upper platform, and at the same time increases the bearing capacity of the upper platform; (4) For the lifting mechanism, the symmetrical scissors, folding rods and connecting rods move completely symmetrically, which also improves The rigidity of the connection is guaranteed, and there will be no jamming caused by one side moving and the other side not moving.

Description of drawings

Figure 1: A schematic diagram of the axis side of the entire lifting platform model;

Figure 2: Top view of the lifting platform;

Among them: 1: base plate main body; 2: base plate hinge shaft; 3: base plate connecting rod fixing frame; 4: base plate scissors short hinge shaft; 5: roller; 6: linear motor; 7: scissors folding rod; 8: connection Rod; 9: connecting shaft of scissor rod; 10: chute of upper platform; 11: main body of upper platform; 12: fixing frame of connecting rod of upper platform; 13: hinge shaft of upper platform; 14: short hinge shaft of scissors of upper platform, 15 : upper platform short connecting rod; 16: bottom plate short connecting rod; 17: bottom plate chute; 18: linear motor drive rod.

Detailed ways

Assemble the bottom plate part, lifting mechanism, upper platform part and driving part respectively, fix the bottom plate part, connect the two bottom plate short connecting rods (16) with the bottom plate connecting rod fixing frame (3) on the bottom plate through the bottom plate hinge shaft (2) ) hinge, place the rollers (5) at the ends of the scissor folding rods of the lifting mechanism on both sides in the bottom plate chute (17), and the upper platform also uses two upper platform short connecting rods (15) to pass through the upper platform. The platform hinge shaft (13) is hinged with the upper platform connecting rod fixing frame (12), the rollers (5) at the ends of the scissor folding rods on both sides are placed in the upper platform chute (10), and the driving part is installed on the on the bottom plate body (1).

Utilize linear motor (6) to drive then, because base plate short connecting rod (16) and the base plate connecting rod fixed frame (3) on the base plate are hinged, so the scissors folding lever at the bottom utilizes the roller (5) of the head on the base plate The bottom plate chute (17) on the top slides symmetrically on both sides, so that the angle between the two scissor folding bars becomes smaller, so that the main body (11) of the upper platform rises. Similarly, on the upper platform part, due to the short upper platform The connecting rod (15) and the upper platform connecting rod fixed mount (12) are hinged, so the connecting rod on the top can only slide symmetrically on both sides in the upper platform chute (10) using the roller (5) on the head, so that the upper When the platform is lifted with a load, it has three support points, one is fixed at the center, and the other two support points are always symmetrical about the center.

Because the load force is always symmetrical about the center, this greatly improves the load-bearing capacity of the upper platform; because the lifting mechanism is completely symmetrical on both sides, the force is also balanced, and there is no situation where one side has a large force and the other has a small force, which also improves The rigidity of the lifting mechanism is improved, and it will not cause stuck phenomenon; on the other hand, because the scissors and folding rods on both sides are always symmetrical, and the whole device has a large bearing capacity, the lifting stroke of the lifting platform is relatively large, so that the entire lifting The platform has the remarkable characteristics of large stroke and large bearing capacity.

Claims (3)

1. A large-capacity scissor-type lifting platform, mainly composed of a base plate part, a driving part, a lifting mechanism and an upper platform part, the uppermost scissor folding rod of the lifting mechanism and the upper platform short connecting rod (15) are supported The platform part and the connection are both hinged, and the scissors folding bar and the upper platform are connected rollingly through the cooperation of the roller (5) and the upper platform chute (10). The connection mode of the upper platform part is the same; the driving part is composed of a linear motor (6) and installed on the bottom plate main body (1). 2. The scissor lift platform with large bearing capacity according to claim 1, characterized in that: the bottom plate of the scissor lift platform with large bearing capacity and the two sides of the upper platform are connected by rolling, and the middle is connected by hinges The included angle becomes smaller between the two scissors folding bars, then the upper platform main body (11) rises, and is connected to the base plate main body (1) and On the upper platform main body (11), the motion of the lifting platform is vertically lifted. 3. Large capacity scissor lift platform, mainly including: Bottom plate part: composed of the bottom plate main body (1), the bottom plate connecting rod fixing frame (3) and the bottom plate chute (17); Lifting mechanism: composed of connecting rod (8), scissors folding rod (7), bottom plate short connecting rod (16), upper platform short connecting rod (15), bottom plate hinge shaft (2), upper platform hinge shaft (13), The bottom plate scissors short hinge shaft (4), the upper platform scissors short hinge shaft (14), the scissor rod connecting shaft (9), and the roller (5); Upper platform part: composed of upper platform main body (11), upper platform connecting rod fixing frame (12) and upper platform chute (10); Drive part: composed of linear motors (6).