CN213679592U

CN213679592U - Lifting platform

Info

Publication number: CN213679592U
Application number: CN202021944792.5U
Authority: CN
Inventors: 张朝凯
Original assignee: Dongguan Ding Qi Intelligent Automation Technology Ltd
Current assignee: Dongguan Ding Qi Intelligent Automation Technology Ltd
Priority date: 2020-09-08
Filing date: 2020-09-08
Publication date: 2021-07-13
Anticipated expiration: 2030-09-08

Abstract

The utility model relates to a lifting platform. The automatic feeding device comprises a base plate, wherein a driven rotating part is movably connected to the middle part of the base plate, the driven rotating part can rotate relative to the base plate, the middle part of the driven rotating part is hollow and is connected with a nut block, the nut block is connected with a lead screw, one end of the lead screw penetrates through the nut block and is connected with a working platform, the base plate is also connected with a driving rotating part, and the driving rotating part is in driving connection with the driven rotating part or is connected with the driven rotating part through a transmission part; the driving rotating part can drive the driven rotating part to rotate. The utility model discloses a set up initiative rotating member, driven rotating member, can adjust the precision, and the adjustment is convenient, reduce cost.

Description

Lifting platform

Technical Field

The utility model relates to a lifting device especially relates to a lifting platform.

Background

In the production and processing process, a lifting platform is frequently used, the lifting platform generally drives a working platform to lift through a linear module in the use process, and the linear module is generally provided with an air cylinder, a screw rod nut and the like according to different requirements on precision; the precision of the cylinder drive is poor, a screw rod nut is generally arranged on the occasion with higher precision requirement, and the nut connected with the lifting platform is driven to move up and down through the rotation of a screw rod; the precision control of the lifting platform generally depends on a motor and a lead screw lead, and in order to improve the precision, a speed reducer is also generally arranged, and the lowest rotation number of the lead screw and the feeding amount of a nut are assisted and controlled by the speed reducer; and in case reduction gear, lead screw, the motor of present lift platform are fixed, then precision adjustment, when the precision needs to be adjusted, then only change reduction gear etc. and the cost is higher.

Disclosure of Invention

An object of the utility model is to provide a lift platform to prior art not enough, this lift platform's precision is adjustable, and the adjustment is with low costs.

A lifting platform comprises a base plate, wherein a driven rotating part is movably connected to the middle of the base plate, the driven rotating part can rotate relative to the base plate, the middle of the driven rotating part is hollow and is connected with a nut block, the nut block is connected with a lead screw, one end of the lead screw penetrates through the nut block and is connected with a working platform, the base plate is also connected with a driving rotating part, and the driving rotating part is in driving connection with the driven rotating part or is connected with the driven rotating part through a driving part; the driving rotating part can drive the driven rotating part to rotate.

Further, the base plate is equipped with supplementary bearing structure, supplementary bearing structure is including the curb plate that is fixed in the base plate, and one side that the curb plate is close to driven rotating member is equipped with vertical spout, and vertical spout sliding connection has vertical guide block, vertical guide block and work platform fixed connection.

Preferably, the base plate is provided with auxiliary support structures at left and right sides of the driven rotation member, respectively.

Furthermore, the side surface of the driving rotating piece is provided with convex teeth, the side surface of the driven rotating piece is also provided with convex teeth, and the driving rotating piece is meshed with the driven rotating piece.

Further, the driving rotating part is a synchronous belt pulley, the driven rotating part is a driven belt pulley, and the driving belt pulley is connected with the driven belt pulley through a synchronous belt.

Furthermore, the driving rotating part is a driving chain wheel, the driven wheel is a driven chain wheel, and the driving chain wheel is connected with the driven chain wheel through a chain.

Further, the base plate is connected with a bearing seat, and the driven rotating member is sleeved on the bearing seat. The upper end of the driven rotating part is connected with a fixed block, the middle of the fixed block is provided with a fixed hole matched with the nut block, and the fixed block is fixedly connected with the nut block.

Further, a shielding plate is connected between the two auxiliary supporting structures.

Furthermore, the middle of the driving rotating piece is provided with a connecting shaft, the side face of the driving wheel is provided with convex teeth, the driving rotating piece is formed into a worm, the side face of the driven rotating piece is provided with the convex teeth, and the driven rotating piece is a worm wheel.

Furthermore, a crossed roller guide rail is arranged in the vertical sliding groove, and the vertical guide block is connected with the side plate in a sliding mode through the crossed roller guide rail.

Further, work platform is equipped with the through-hole, the upper end of lead screw is passed through the bearing and is connected with work platform's through-hole, and the upper end of lead screw is equipped with the stopper, the up end and the work platform butt of stopper.

The utility model has the advantages that: the utility model discloses a set up initiative rotating member, driven rotating member, can adjust the precision, and the adjustment is convenient, reduce cost.

Drawings

Fig. 1 is a schematic structural diagram of the present embodiment.

Fig. 2 is a schematic diagram of a second viewing angle in the present embodiment.

Fig. 3 is a schematic diagram of a third viewing angle of the present embodiment.

Fig. 4 is a schematic diagram of a fourth viewing angle in the present embodiment.

The reference numerals include:

1-a bearing; 2-a screw rod; 3-a substrate; 4-bearing seat; 5-active rotating part; 6-convex teeth; 7-driven rotating member; 8, fixing blocks; 9-vertical guide block; 10-a work platform; 11-side plate; 12-connecting shaft; 14-cross roller guide; 15-a limiting block; 16-shielding plate; 17-nut block.

Detailed Description

The following detailed description of the present invention is made with reference to the accompanying drawings. As shown in fig. 1-4.

Example 1: a lifting platform comprises a base plate 3, wherein a driven rotating part 7 is movably connected to the middle of the base plate 3, the driven rotating part 7 can rotate relative to the base plate 3, the middle of the driven rotating part 7 is hollow and is connected with a nut block 17, the nut block 17 is connected with a lead screw 2, one end of the lead screw 2 penetrates through the nut block 17 and is connected with a working platform 10, the base plate 3 is further connected with a driving rotating part 5, and the driving rotating part 5 is in driving connection with the driven rotating part 7 or the driving rotating part 5 is connected with the driven rotating part 7 through a transmission part; the driving rotating member 5 can drive the driven rotating member 7 to rotate.

In practical application, the driving rotating member 5 can be directly connected with a driving device, such as a motor; or can be connected with a driving device through a speed reducer and the like; in the embodiment, the driving rotating member 5 may be connected to the motor through a reducer; the motor drives the driving rotating part 5 to rotate through the speed reducer, the driving rotating part 5 directly or indirectly drives the driven rotating part 7 to rotate, the driven rotating part 7 drives the nut block 17 to rotate, and the nut block 17 is fixed on the driven rotating part 7, so that the nut block 17 can only do rotary motion, the screw rod 2 relatively does up-and-down movement, and the working platform 10 is further driven to move up and down; due to the addition of the driving rotating member 5 and the driven rotating member 7, the minimum driving turn number of the motor to the nut block 17 can be further adjusted through the rotating speed ratio of the driving rotating member 5 to the driven rotating member 7; when the precision needs to be adjusted, the driving rotating part 5 can be directly replaced, and the outer diameter of the driving rotating part 5 is changed so as to achieve the purpose of adjusting the precision. The adjustment cost is low, and the adjustment is convenient.

Further, base plate 3 is equipped with supplementary bearing structure, supplementary bearing structure is including being fixed in base plate 3's curb plate 11, and curb plate 11 is close to one side of driven rotating member 7 and is equipped with vertical spout, and vertical spout sliding connection has vertical guide block 9, vertical guide block 9 and work platform 10 fixed connection.

When supporting work platform 10 and going up and down, if only rely on lead screw 2 to support the drive and go up and down, lead screw 2 probably takes place the bending, for avoiding this condition to take place, this technical scheme sets up auxiliary stay structure, makes work platform 10 do directional lift removal through auxiliary stay structure. The work platform 10 may be a table, a base plate, or the like.

Preferably, the base plate 3 is provided with auxiliary support structures at both left and right sides of the driven rotator 7, respectively.

The auxiliary supporting structures are symmetrically arranged, so that the working platform 10 can move more stably.

Further, the side surface of the driving rotating member 5 is provided with a convex tooth 6, the side surface of the driven rotating member 7 is also provided with a convex tooth 6, and the driving rotating member 5 is meshed with the driven rotating member 7.

The driving rotating part 5 and the driven rotating part 7 are respectively arranged to be of a driving gear structure and a driven gear structure, so that the structure is simple, the transmission ratio in the middle is adjusted by changing the outer diameter of the driven gear, and the precision is further changed. Of course, the driving gear can also be meshed with the driven gear through the intermediate gear. The intermediate gear is the transmission piece.

Further, the driving rotating part 5 is a synchronous belt pulley, the driven rotating part 7 is a driven belt pulley, and the driving belt pulley is connected with the driven belt pulley through a synchronous belt.

Further, the driving rotating member 5 is a driving sprocket, the driven sprocket is a driven sprocket, and the driving sprocket is connected with the driven sprocket through a chain.

In order to avoid the requirement of gear transmission on the gear, the cost is higher. The technical scheme adopts a synchronous belt mechanism or a chain wheel mechanism, and the synchronous belt mechanism or the synchronous chain wheel mechanism has relatively low requirements on a synchronous wheel or a chain wheel, especially the requirements on teeth; the cost is reduced.

Further, the base plate 3 is connected with a bearing seat 4, and the driven rotating member 7 is sleeved on the bearing seat 4. The upper end of the driven rotating part 7 is connected with a fixing block 8, the middle of the fixing block 8 is provided with a fixing hole matched with the nut block 17, and the fixing block 8 is fixedly connected with the nut block 17.

This technical scheme is through setting up bearing frame 4 for driven rotating member 7 can be relative the base rotation, and is connected driven rotating member 7 and nut block 17 through setting up fixed block 8, and overall structure is simple.

Further, a shielding plate 16 is connected between the two auxiliary support structures.

In order to prevent or reduce the interference of the driven rotary member 7 from the outside, the present solution provides a shielding plate 16.

Furthermore, a connecting shaft 12 is arranged in the middle of the driving rotating piece 5, convex teeth 6 are arranged on the side surface of the driving wheel, the driving rotating piece 5 is formed into a worm, the convex teeth 6 are arranged on the side surface of the driven rotating piece 7, and the driven rotating piece 7 is a worm wheel.

The driving rotating member 5 and the driven rotating member 7 are provided with a worm gear structure, so that the driven rotating member 7 can be prevented from rotating.

Furthermore, a crossed roller guide rail 14 is arranged in the vertical sliding groove, and the vertical guide block 9 is connected with the side plate 11 in a sliding mode through the crossed roller guide rail 14.

The arrangement of the crossed roller guide rails 14 can effectively reduce vertical friction force and reduce use cost.

Further, work platform 10 is equipped with the through-hole, the upper end of lead screw 2 is passed through bearing 1 and is connected with work platform 10's through-hole, and the upper end of lead screw 2 is equipped with stopper 15, stopper 15's up end and work platform 10 butt.

In order to conveniently connect the screw rod 2 with the working platform 10 and drive the working platform 10 to move up and down, the technical scheme is provided with a bearing 1 and a limiting block 15.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the present description should not be interpreted as a limitation to the present invention.

Claims

1. A lift platform, it includes the base plate, its characterized in that: the middle part of the base plate is movably connected with a driven rotating part, the driven rotating part can rotate relative to the base plate, the middle part of the driven rotating part is hollow and is connected with a nut block, the nut block is connected with a lead screw, one end of the lead screw penetrates through the nut block and is connected with a working platform, the base plate is also connected with a driving rotating part, and the driving rotating part is in driving connection with the driven rotating part or is connected with the driven rotating part through a transmission part; the driving rotating part can drive the driven rotating part to rotate.

2. A lifting platform according to claim 1, wherein: the base plate is equipped with auxiliary supporting structure, auxiliary supporting structure is including the curb plate that is fixed in the base plate, and one side that the curb plate is close to driven rotating member is equipped with vertical spout, and vertical spout sliding connection has vertical guide block, vertical guide block and work platform fixed connection.

3. A lifting platform according to claim 2, wherein: the left side and the right side of the driven rotating part of the base plate are respectively provided with an auxiliary supporting structure.

4. A lifting platform according to claim 1, wherein: the side of the driving rotating part is provided with convex teeth, the side of the driven rotating part is also provided with convex teeth, and the driving rotating part is meshed with the driven rotating part.

5. A lifting platform according to claim 1, wherein: the driving rotating part is a synchronous belt pulley, the driven rotating part is a driven belt pulley, and the driving belt pulley is connected with the driven belt pulley through a synchronous belt.

6. A lifting platform according to claim 1, wherein: the driving rotating part is a driving chain wheel, the driven wheel is a driven chain wheel, and the driving chain wheel is connected with the driven chain wheel through a chain.

7. A lifting platform according to claim 1, wherein: the base plate is connected with a bearing seat, and the driven rotating piece is sleeved on the bearing seat; the upper end of the driven rotating part is connected with a fixed block, the middle of the fixed block is provided with a fixed hole matched with the nut block, and the fixed block is fixedly connected with the nut block.

8. A lifting platform according to claim 1, wherein: the middle part of the driving rotating piece is provided with a connecting shaft, the side face of the driving wheel is provided with convex teeth, the driving rotating piece is formed into a worm, the side face of the driven rotating piece is provided with the convex teeth, and the driven rotating piece is a worm wheel.

9. A lifting platform according to claim 2, wherein: and a crossed roller guide rail is arranged in the vertical sliding chute, and the vertical guide block is connected with the side plate in a sliding manner through the crossed roller guide rail.

10. A lifting platform according to any one of claims 1 to 9, wherein: the working platform is provided with a through hole, the upper end of the screw rod is connected with the through hole of the working platform through a bearing, a limiting block is arranged at the upper end of the screw rod, and the upper end face of the limiting block is abutted to the working platform.