CN218810153U - Gear rack jacking synchronizing mechanism - Google Patents

Abstract

The utility model discloses a rack and pinion jacking lazytongs mainly includes: the device comprises an air cylinder jacking assembly, a lifting platform, a gear rack mechanism and a gear synchronous mechanism; the cylinder jacking subassembly includes: the lifting platform comprises a bottom plate, a linear guide rail, a jacking cylinder, an upper limit, a lower limit, a floating joint, a cylinder mounting piece and a lifting platform connecting piece; the rack and pinion mechanism includes: a gear and a rack; the gear synchronizing mechanism includes: the device comprises a gear shaft, a synchronous shaft, a coupler, a bearing seat and a T-shaped speed reducer; the cylinder jacking assembly is connected with the rack; four corners of the lifting platform are connected with four cylinder jacking assemblies, and jacking cylinders in the cylinder jacking assemblies are driven by the jacking cylinders to do jacking motion; the gear synchronizing mechanism is connected with the lifting platform; the utility model provides a separate independent, the inconsistent problem of speed when the cylinder jacking, it is great because of the span when having avoided the jacking, the jamming or the problem of blocking that the speed nonconformity leads to have improved life, reliability and the security of equipment.

Description

Gear rack jacking synchronizing mechanism

Technical Field

The utility model belongs to the technical field of the automotive industry, mainly be applied to the promotion test in skylight in sunroof production line silence room, concretely relates to rack and pinion jacking lazytongs.

Background

Along with the continuous development of automobile industry, the skylight is as the key spare part of car, receives more and more attention of consumer, and the producer often need test the skylight after the assembly in order to control the production quality of skylight better, and the silence room is exactly one of them station that carries out the noise detection to the skylight, and the in-process need be hung the skylight, makes things convenient for the workman to test in the below, and this just needs a stable, reliable, safe climbing mechanism. The common jacking device in the market is a cylinder and a guide mechanism, for example, a linear guide rail or a shaft and a bush are used for guiding, the cylinder is used as power to carry out jacking action, and the device is either only suitable for small span or needs a particularly thick shaft for guiding, is heavy and occupies space; for the four-corner jacking movement with large span, synchronous jacking cannot be guaranteed due to air quantity, pipe length, starting speed and the like of an air cylinder, so that the heights of four corners of a jacking platform are different, the platform is deformed and the like, and clamping stagnation and stopping steps are caused in the lifting process. And the mute room needs the people to enter into skylight below work, and the big space of span is little, the utility model discloses design for this promptly.

Disclosure of Invention

An object of the utility model is to overcome above-mentioned prior art's weak point, provide a rack and pinion jacking lazytongs that the operation is stable, high-efficient reliable, this mechanism has mainly solved the equipment jamming problem that traditional device leads to because of the cylinder is independent separately, the span is great, speed is inconsistent separately at the jacking process, has improved the life of equipment, and security and reliability also obtain improving, have satisfied silence room detection demand.

The utility model discloses a realize through following technical scheme:

a gear rack jacking synchronization mechanism comprises a cylinder jacking assembly, a lifting platform, a gear rack mechanism and a gear synchronization mechanism.

The cylinder jacking assembly is connected with the rack;

four corners of the lifting platform are connected with four cylinder jacking assemblies, and jacking cylinders in the cylinder jacking assemblies are driven by the jacking cylinders to do jacking movement;

the gear synchronizing mechanism is connected with the lifting platform;

the gear synchronizing mechanism is connected with a gear, the cylinder jacking assembly is connected with racks, and the four groups of gear racks jointly form the gear rack mechanism.

Wherein, cylinder jacking subassembly includes: bottom plate, linear guide, jacking cylinder, go up spacing, spacing down, float joint, cylinder installed part and lift platform connecting piece.

The linear guide rail is arranged on the bottom plate;

the jacking cylinder body is arranged on the bottom plate through a cylinder mounting piece, and the rod end of the jacking cylinder body is connected to the lifting platform connecting piece through a floating joint;

the lifting platform connecting piece is connected to a sliding block of the linear guide rail and can move up and down along the linear guide rail under the pushing of the air cylinder;

the upper limit and the lower limit are arranged on the bottom plate to play a role in limiting and adjusting.

Wherein, rack and pinion mechanism includes: gear, rack.

The racks are respectively arranged on the bottom plates of the four cylinder jacking assemblies;

the gears are respectively arranged on four gear shafts of the gear synchronizing mechanism;

when the jack is lifted, the four groups of gear rack mechanisms work simultaneously and keep synchronous action under the connection of the gear synchronous mechanism.

Wherein, gear synchronizing mechanism includes: gear shaft, synchronizing shaft, shaft coupling, bearing frame and T type speed reducer.

The gear shaft is arranged on the bearing block;

the bearing seat is arranged on the lifting platform;

the T-shaped speed reducer is arranged on the lifting platform and is connected with the bearing seat through a gear shaft;

the synchronizing shaft is connected with two speed reducers.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a separate independent, the inconsistent problem of speed when four cylinders jack-up, it is great because of the span when having avoided the jack-up, the jamming or the problem of blocking that the speed nonconformity leads to have improved the life of equipment effectively to and reliability and security.

Drawings

FIG. 1 is a perspective view of a rack and pinion jacking synchronization mechanism;

FIG. 2 is a perspective view of a cylinder jack assembly;

fig. 3 is a perspective view of the gear synchronizing mechanism.

1. The lifting platform comprises a cylinder lifting assembly 2, a lifting platform 3, a gear rack mechanism 4, a gear synchronizing mechanism 5, a bottom plate 6, a linear guide rail 7, a lifting cylinder 8, an upper limit 9, a lower limit 10, a floating joint 11, a cylinder mounting piece 12, a lifting platform connecting piece 13, a rack 14, a gear 15, a gear shaft 16, a synchronizing shaft 17, a coupler 18 and a bearing seat 19, and a T-shaped speed reducer.

Detailed Description

For a further understanding of the contents, features and effects of the present invention, reference will now be made to the following examples, which are to be considered in conjunction with the accompanying drawings. It should be noted that the present embodiment is illustrative, not restrictive, and the scope of the invention should not be limited thereby.

A gear rack jacking synchronization mechanism is composed of an air cylinder jacking assembly 1, a lifting platform 2, a gear rack mechanism 3 and a gear synchronization mechanism 4.

The cylinder jacking assembly 1 is connected with the rack;

four corners of the lifting platform 2 are connected with four cylinder jacking assemblies 1, and jacking cylinders 7 in the cylinder jacking assemblies 1 drive the lifting platforms to do jacking movement;

the gear synchronizing mechanism 4 is connected with the lifting platform 2;

the gear synchronization mechanism 4 is connected with a gear 14, the cylinder jacking assembly 1 is connected with a rack 13, and the four groups of gear racks jointly form the gear rack mechanism 3.

Wherein, cylinder jacking subassembly 1 includes: bottom plate 5, linear guide 6, jacking cylinder 7, go up spacing 8, lower limit 9, floating joint 10, cylinder installed part 11 and lift platform connecting piece 12.

The linear guide rail 6 is arranged on the bottom plate 5;

the body of the jacking cylinder 7 is arranged on the bottom plate 5 through a cylinder mounting piece 11, and the rod end of the jacking cylinder is connected to a lifting platform connecting piece 12 through a floating joint 10;

the lifting platform connecting piece 12 is connected to a sliding block of the linear guide rail 6 and can move up and down along the linear guide rail 6 under the pushing of the jacking cylinder 7;

the upper limit 8 and the lower limit 9 are arranged on the bottom plate 5 and play a role in limiting and adjusting;

the floating joint 10 has a compensation function, compensates processing and assembling errors, and avoids the influence of radial force on the service life of the air cylinder rod.

Wherein, rack and pinion mechanism 3 includes: gear 14, rack 13.

The racks 13 are respectively arranged on the bottom plates 5 of the four cylinder jacking assemblies 1;

the gears 14 are respectively arranged on four gear shafts 15 of the gear synchronous mechanism 4;

when the jack is lifted, the four groups of gear rack mechanisms 3 work simultaneously and keep synchronous action under the connection of the gear synchronous mechanism 4.

Wherein, gear synchronizing mechanism 4 includes: gear shaft 15, synchronizing shaft 16, shaft coupling 17, bearing frame 18, T type speed reducer 19.

The gear shaft 15 is arranged on a bearing seat 18;

the bearing seat 18 is arranged on the lifting platform 2;

the T-shaped speed reducer 19 is arranged on the lifting platform 2 and is in transmission connection with the gears 14 at two ends through a gear shaft 15 and a coupler 17;

the synchronizing shaft 16 is connected with two speed reducers 19, so as to drive the gear 14 to synchronously act.

The reduction ratio of the T-shaped speed reducer 19 is 1:1, the 90-degree reversing function is realized.

The working process comprises the following steps:

after the lifting platform 2 clamps the skylight, the cylinder jacking assembly 1 receives signals, the four jacking cylinders 7 drive the lifting platform 2 to move upwards along the linear guide rail 6, the gear 14 and the rack 13 are meshed to rotate in the process, meanwhile, the gear 14 is under the action of the gear synchronizing mechanism 4, the gear shaft 15, the synchronizing shaft 16 and the T-shaped speed reducer 19 are connected to keep rotating synchronously, namely four corners of the lifting platform 2 are driven to ascend synchronously, the blockage or blockage caused by different air volumes or pipe lengths of the four cylinders is avoided, the service lives of the cylinders and the linear guide rail are effectively prolonged, and the stability and the reliability of the lifting mechanism are improved.

Claims (3)

1. A rack and pinion jacking synchronization mechanism, comprising: the device comprises an air cylinder jacking assembly, a lifting platform, a gear rack mechanism and a gear synchronous mechanism; the cylinder jacking subassembly includes: the lifting platform comprises a bottom plate, a linear guide rail, a jacking cylinder, an upper limit, a lower limit, a floating joint, a cylinder mounting piece and a lifting platform connecting piece; the rack and pinion mechanism includes: a gear and a rack; the gear synchronizing mechanism includes: the device comprises a gear shaft, a synchronous shaft, a coupler, a bearing seat and a T-shaped speed reducer; the method is characterized in that: the cylinder jacking assembly is connected with the rack; four corners of the lifting platform are connected with four cylinder jacking assemblies, and jacking cylinders in the cylinder jacking assemblies are driven by the jacking cylinders to do jacking movement; the gear synchronizing mechanism is connected with the lifting platform; the gear synchronization mechanism is connected with a gear, the cylinder jacking assembly is connected with a rack, and the four groups of gear racks jointly form the gear rack mechanism; the linear guide rail is arranged on the bottom plate; the upper limit and the lower limit are arranged on the bottom plate and play a role in limiting and adjusting; the racks are respectively arranged on the bottom plates of the four cylinder jacking assemblies; the gears are respectively arranged on four gear shafts of the gear synchronizing mechanism; when the jack is lifted, the four groups of gear rack mechanisms work simultaneously and keep synchronous action under the connection of the gear synchronous mechanism; the gear shaft is arranged on the bearing block; the bearing seat is arranged on the lifting platform; the T-shaped speed reducer is arranged on the lifting platform and is connected with the bearing block through a gear shaft; the synchronizing shaft is connected with two speed reducers.

2. The rack and pinion jacking synchronizing mechanism of claim 1, wherein: jacking cylinder body pass through the cylinder installed part and install on the bottom plate, the rod end is through floating the articulate on the lift platform connecting piece, the joint that floats plays the compensation effect, compensation processing and assembly error avoid the cylinder pole to receive radial force influence life-span.

3. The gear rack jacking synchronous mechanism of claim 1, wherein: the lifting platform connecting piece is connected to a sliding block of the linear guide rail and can move up and down along the linear guide rail under the pushing of the cylinder.

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