CN220011999U - Lifting table device - Google Patents

Abstract

The utility model relates to a lifting table device which comprises a platform, a lifting mechanism, a driving mechanism, a transmission mechanism, a moving mechanism and a base, wherein the driving mechanism is arranged between the platform and the base, the output end of the driving mechanism is connected with one part of the moving mechanism through the transmission mechanism, the other part of the moving mechanism is movably arranged at the first part of the lifting mechanism, the second part of the lifting mechanism is movably arranged at the base, the third part of the lifting mechanism is movably arranged at the platform, and the driving mechanism transmits a kinematic pair to the moving mechanism to enable the moving mechanism to move relative to the lifting mechanism so as to realize lifting or descending of the platform. The driving mechanism is used for transmitting the kinematic pair to the transmission mechanism, the transmission mechanism is used for transmitting the kinematic pair to the moving mechanism, and the moving mechanism can axially displace along the transmission mechanism, so that the moving wheel in the moving mechanism moves along the shearing fork plate group.

Description

Lifting table device

Technical Field

The utility model relates to the technical field of lifting devices, in particular to a lifting table device.

Background

At present, the lifter is widely applied to industries such as machinery, metallurgy, construction, water conservancy equipment and the like, and has a plurality of functions such as lifting, descending, pushing by aid of auxiliary parts, overturning, adjusting various height positions and the like. With the continuous improvement of conveying mechanical technology, the requirement for automation of workpieces in the conveying process is also increasing, for example, accurate positioning at different heights, larger lifting stroke, bearing higher load, keeping the lifting speed stable and the like are required. The problems of the traditional scissor hydraulic and belt type lifting platform are as follows:

the scissor type hydraulic lifting platform has the problems of high noise, low bearing capacity, small lifting stroke and unstable speed, is easy to generate oil leakage phenomenon in the use process to cause pollution, and meanwhile, the stability of the lifting platform is possibly reduced due to the generated oil leakage, so that potential safety hazards exist.

And secondly, the belt type lifting platform has more joints, so that the maintenance is difficult, the working efficiency is low, the device has high price and large occupied space, and the utilization rate is low.

Disclosure of Invention

In view of the foregoing drawbacks of the prior art, an object of the present utility model is to provide a lifting platform device that solves one or more of the problems of the prior art.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the utility model provides a elevating platform device, this device includes platform, hoisting mechanism, actuating mechanism, drive mechanism, moving mechanism and base, actuating mechanism set up in the platform with between the base, actuating mechanism's output pass through drive mechanism with a part of moving mechanism is connected, another part of moving mechanism movably set up in hoisting mechanism's first part, hoisting mechanism's second part movably set up in the base, hoisting mechanism's third part movably set up in the platform, actuating mechanism will kinematic pair transmits to moving mechanism makes moving mechanism for hoisting mechanism removes, in order to realize the rise or the decline of platform.

Further, the lifting mechanism comprises two groups of shearing fork plate groups, each shearing fork plate group is provided with two shearing fork plates which are connected with each other, the end parts of each shearing fork plate are respectively connected with pulleys, at least four connecting frames are arranged between every two adjacent shearing fork plate groups, one side of each shearing fork plate is provided with a curved surface, and the moving mechanism can move through the curved surface.

Further, the transmission mechanism comprises a coupler and a screw, one part of the coupler is connected with the output end of the driving mechanism, and the other part of the coupler is connected with one part of the screw; the bearing is further connected to the outer side of the screw rod at the position close to the coupler, and the bearing is arranged in the bearing seat;

and a middle box body is further arranged on the outer side of the coupler, and the bearing seat is fixedly connected with the middle box body.

Further, the moving mechanism comprises a pull beam rotationally connected with the screw rod, the end parts of the pull beam, which are close to the shearing fork plate group, are respectively provided with a second shaft end, and the moving wheel is rotatably arranged at the second shaft end.

Further, at least two first through holes are formed in the middle box body, at least two second through holes are formed in the pull beam, the second through holes are coaxial with the first through holes, one part of the guide rod is matched with the first through holes, and the other part of the guide rod penetrates through the second through holes and is connected with the sealing plate.

Further, the lifting platform device is further provided with at least four supporting rods, and each supporting rod is detachably arranged between the platform and the base.

Further, limiting plates are arranged on one sides of the platform and the base, and sliding grooves which can be used for the pulleys to move are formed in the limiting plates.

Further, the base is also provided with a high-level sensor and a low-level sensor.

Compared with the prior art, the utility model has the following beneficial technical effects:

according to the utility model, the driving mechanism, the transmission mechanism and the moving mechanism are built in, the kinematic pair is transmitted to the transmission mechanism through the driving mechanism, the kinematic pair is transmitted to the moving mechanism through the transmission mechanism, and the moving mechanism can axially displace along the transmission mechanism, so that the moving wheel in the moving mechanism moves along the shearing fork plate group, the lifting of the platform is realized through the opening and closing of the shearing fork plate group, the device joint point is reduced through the optimized structure, the manufacturing cost is saved, and the working efficiency is improved.

And secondly, the middle box body is connected with the driving mechanism, so that the driving mechanism is arranged between the platform and the base, the occupied area of the lifting platform device is reduced, and the practicability and the utilization rate are improved.

And thirdly, a guide rod is arranged on each of the two sides of the middle box body and the pull beam to provide moving guide for the moving mechanism and keep the balance of the moving mechanism in the moving process. Through setting up the bracing piece, both ends are respectively in platform and base support connection to keep the device stability after lifting.

And fourthly, a limiting plate is arranged to mechanically limit the lifting mechanism so as to limit the highest and lowest movable distances of the lifting device. And a high-level sensor and a low-level sensor are arranged on two sides of the limiting plate on one side of the base, and whether the ascending or descending height of the device is in place is judged.

Drawings

Fig. 1 shows a schematic structural diagram of a lifting platform device according to an embodiment of the present utility model.

Fig. 2 is a schematic view showing a partial structure of a lifting platform device according to an embodiment of the present utility model.

Fig. 3 shows a schematic diagram of connection between a transmission mechanism and a moving mechanism in a lifting platform device according to an embodiment of the present utility model.

Fig. 4 is a schematic connection diagram of a driving mechanism, a transmission mechanism and a moving mechanism in a lifting platform device according to an embodiment of the utility model.

Fig. 5 is a schematic view showing a part of connection of a driving mechanism, a transmission mechanism and a moving mechanism in a lifting platform device according to an embodiment of the utility model.

Fig. 6 is a schematic view showing a partial structure of a base in a lifting platform device according to an embodiment of the present utility model.

The reference numerals in the drawings: 1. a platform; 2. a lifting mechanism; 200. a scissors fork plate; 201. a connecting frame; 202. a pulley; 203. a curved surface; 3. a driving mechanism; 300. a motor; 301. a flange; 302. a drive shaft; 4. a transmission mechanism; 400. a coupling; 401. a screw; 402. a bearing; 403. a bearing seat; 404. a middle box body; 4040. a first through hole; 4041. a first shaft end; 4042. a knuckle bearing; 4043. a bearing sleeve; 5. a moving mechanism; 500. pulling a beam; 5000. a second through hole; 5001. a screw seat; 5002. a pull beam body; 5003. a second axial end; 501. a moving wheel; 502. a guide rod; 503. a sealing plate; 6. a base; 600. a high-level sensor; 601. a low level sensor; 7. a support rod; 8. a limiting plate; 800. and a sliding groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, a lifting platform device according to the present utility model will be described in further detail with reference to the accompanying drawings and detailed description. The advantages and features of the present utility model will become more apparent from the following description. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for the purpose of facilitating and clearly aiding in the description of embodiments of the utility model. For a better understanding of the utility model with objects, features and advantages, refer to the drawings. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that any modifications, changes in the proportions, or adjustments of the sizes of structures, proportions, or otherwise, used in the practice of the utility model, are included in the spirit and scope of the utility model which is otherwise, without departing from the spirit or essential characteristics thereof.

The following describes a specific structure of a lifting table device as follows:

as shown in fig. 1, the elevating platform device of the present embodiment includes a platform 1, a lifting mechanism 2, a driving mechanism 3, a transmission mechanism 4, a moving mechanism 5 and a base 6, wherein the driving mechanism 3 is disposed between the platform 1 and the base 6, an output end of the driving mechanism 3 is connected with a part of the moving mechanism 5 through the transmission mechanism 4, another part of the moving mechanism 5 is movably disposed at a first part of the lifting mechanism 2, a second part of the lifting mechanism 2 is movably disposed at the base 6, a third part of the lifting mechanism 2 is movably disposed at the platform 1, and the driving mechanism 3 transmits a kinematic pair to the moving mechanism 5 to enable the moving mechanism 5 to move relative to the lifting mechanism 2 so as to realize lifting or lowering of the platform 1.

Further, referring to fig. 2, the specific structure of the lifting mechanism 2 is as follows:

the lifting mechanism 2 comprises two groups of shearing fork plate groups, each group of shearing fork plate groups is provided with two shearing fork plates 200 which are connected with each other, the two shearing fork plates 200 are mutually crossed to form an X shape, the upper end and the lower end of each shearing fork plate 200 are respectively connected with a pulley 202, wherein the upper end of each shearing fork plate 200 is one end close to the platform 1, and the lower end of each shearing fork plate 200 is one end close to the base 6.

Further, at least four connecting frames 201 are disposed between two adjacent shearing plate groups, two ends of each connecting frame 201 are respectively and fixedly connected with the inner sides of two adjacent shearing plates 200, one side of each shearing plate 200 is provided with a curved surface 203, and the moving mechanism 5 is provided with the curved surface 203 to move. By providing the connection frame 201, the installation stability between the two shearing plate groups can be ensured. One side of the scissor plate 200 is specifically referred to as the side that is closer to the moving wheel 501.

Further, referring to fig. 5, the driving mechanism 3 includes a motor 300 and a driving shaft 302 connecting the motor 300 and the transmission mechanism 4, where a fixed end of the motor 300 is fixedly connected with one end of the flange 301 through a fastener, so as to realize the installation and fixation of the motor 300, and further realize that the driving mechanism 3 may be internally disposed between the platform 1 and the base 6, so as to reduce the overall floor area of the lifting platform device.

Further, referring to fig. 3 and 4, the transmission mechanism 4 includes a coupling 400 and a screw 401, one end of the coupling 400 is connected to the output end of the driving mechanism 3, and the other end of the coupling 400 is connected to a portion of the screw 401. A bearing 402 is further connected to the outside of the screw 401 near the coupling 400, and the bearing 402 is disposed in a bearing housing 403. The coupling 400 rotates together in the process of transmitting motion and power by the driving mechanism 3, specifically, the coupling 400 is in transmission connection with the driving shaft 302, the driving shaft 302 of the driving mechanism 3 rotates, the screw 401 is driven to rotate by the coupling 400, and the moving mechanism 5 is further driven to axially move relative to the screw 401.

A middle box 404 is further disposed on the outer side of the coupling 400, one side of the middle box 404 is fixedly connected with the flange 301, and the bearing seat 403 is fixedly connected with the other side of the middle box 404.

The specific structure of the case 404 in the following detailed description is as follows:

with continued reference to fig. 3 to 5, the left and right ends of the middle case 404, which are close to the scissor plate set, further include a first shaft end 4041, a joint bearing 4042, and a bearing sleeve 4043, where the bearing sleeve 4043 is sleeved on the joint bearing 4042, and the first shaft end 4041 penetrates through the joint bearing 4042 and is connected with the scissor plate set, so that the scissor plate set can swing up and down along with the rotation of the joint bearing 4042, and meanwhile, the stability of the lifting mechanism 2 is further ensured.

Further, as shown in fig. 3 to 5, the moving mechanism 5 includes a pull beam 500 rotatably connected to the screw 401, the end of the pull beam 500 near the scissor plate set has a second shaft end 5003, and the moving wheel 501 is rotatably disposed at the second shaft end 5003, where the pull beam 500 is disposed at an intersection of two scissor plates 200, and the intersection refers to a left-right intersection. The pull beam 500 further comprises a screw base 5001 and a pull beam body 5002, wherein the screw base 5001 has an internal threaded hole with one end penetrating through the pull beam body 5002 and fixedly connected with the outer side of the pull beam body 5002, and the inner side of the screw base 5001 has an internal threaded hole for the screw 401 to pass through.

Still further, as shown in fig. 3 to 5, at least two first through holes 4040 are formed in the middle case 404, preferably, in the lifting platform device of the present embodiment, the number of the first through holes 4040 is preferably two, and the first through holes 4040 are symmetrically arranged with the screw 401 as a center. Similarly, at least two second through holes 5000 are formed on the pull beam 500, the second through holes 5000 are coaxial with the first through holes 4040, a part of the guide rod 502 is matched with the first through holes 4040, another part of the guide rod 502 penetrates through the second through holes 5000 and is connected with the sealing plate 503, and the guide rod 502 is used for providing guidance for the movement of the moving mechanism 5, and meanwhile, the balance of the device is maintained during the movement of the moving mechanism 5. Specifically, copper sleeve lubrication is arranged between the screw 401 and the coupling 400 and between the screw 401 and the pull beam 500, and the sealing plate 503 is used for preventing grease on the screw 401 from splashing in the rotation process. In this embodiment, after the driving mechanism 3 is started, the driving shaft 302 transmits the kinematic pair to the screw 401, the screw 401 starts to rotate in the bearing 402, the pull beam 500 rotationally connected with the screw 401 moves back and forth along the thread direction of the screw 401, and simultaneously the moving wheels 501 connected with two ends of the pull beam 500 move up and down along the curved surface 203 of the outer side of the scissor plate 200 of the lifting mechanism 2, so as to realize lifting or lowering of the device.

Referring to fig. 1 and 2, in the present embodiment, the elevating platform assembly further includes at least four support rods 7. Preferably, in the lifting platform device of this embodiment, each supporting rod 7 is detachably disposed between the platform 1 and the base 6, when the lifting mechanism 2 reaches a preset height, two ends of the supporting rod 7 are respectively connected with the platform 1 and the base 6 in a supporting manner, and four supporting rods 7 are respectively disposed between four corners of the platform 1 and the base 6, so as to ensure stability of the lifting platform device.

Further, referring to fig. 1, 2 and 6, a limiting plate 8 is disposed on one side of the platform 1 and one side of the base 6, and a chute 800 for moving the pulley 202 is disposed inside the limiting plate 8. In particular, the side of the platform 1 and the base 6 is in particular the side facing away from the drive mechanism 3. The pulley 202 slides in the chute 800 to the side away from the support bar 7 when the device is raised and the pulley 202 slides in the chute 800 to the side closer to the support bar 7 when the device is lowered. The limiting plate 8 plays a mechanical limiting role on the lifting mechanism 2 so as to limit the highest and lowest movable distances of the lifting device.

Further, referring to fig. 6, the base 6 is further provided with a high sensor 600 and a low sensor 601. Specifically, the high-level sensor 600 is disposed at an end of the base 6 near the connection frame 201, and the low-level sensor 601 is disposed at an end of the base 6 far from the connection frame 201. When the high sensor 600 detects the moving wheel 501, it indicates that the pulley 202 has reached the highest limit, i.e. the hoisting mechanism 2 is raised to the maximum height, and when the low sensor 601 detects the moving wheel 501, it indicates that the pulley 202 has reached the lowest limit, i.e. the hoisting mechanism 2 is lowered to the minimum height.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (8)

1. A lifting platform device, characterized in that: the device comprises a platform, a lifting mechanism, a driving mechanism, a transmission mechanism, a moving mechanism and a base, wherein the driving mechanism is arranged between the platform and the base, the output end of the driving mechanism is connected with one part of the moving mechanism through the transmission mechanism, the other part of the moving mechanism is movably arranged at the first part of the lifting mechanism, the second part of the lifting mechanism is movably arranged at the base, the third part of the lifting mechanism is movably arranged at the platform, and the driving mechanism transmits a kinematic pair to the moving mechanism, so that the moving mechanism moves relative to the lifting mechanism, and the lifting or the lowering of the platform is realized.

2. A lift table apparatus as set forth in claim 1 wherein: the lifting mechanism comprises two groups of shearing fork plate groups, each shearing fork plate group is provided with two shearing fork plates which are connected with each other, the end parts of each shearing fork plate are respectively connected with pulleys, at least four connecting frames are arranged between every two adjacent shearing fork plate groups, one side of each shearing fork plate is provided with a curved surface, and the moving mechanism can move through the curved surface.

3. A lift table apparatus as set forth in claim 1 wherein:

the transmission mechanism comprises a coupler and a screw, one part of the coupler is connected with the output end of the driving mechanism, and the other part of the coupler is connected with one part of the screw; the bearing is further connected to the outer side of the screw rod at the position close to the coupler, and the bearing is arranged in the bearing seat;

and a middle box body is further arranged on the outer side of the coupler, and the bearing seat is fixedly connected with the middle box body.

4. A lifting platform device as claimed in claim 3, wherein:

the moving mechanism comprises a pull beam rotationally connected with the screw rod, the end parts of the pull beam, which are close to the shearing fork plate group, are respectively provided with a second shaft end, and the moving wheel is rotatably arranged at the second shaft end.

5. A lift table apparatus as set forth in claim 4 wherein:

at least two first through holes are formed in the middle box body, at least two second through holes are formed in the pull beam, the second through holes are coaxial with the first through holes, one part of the guide rod is matched with the first through holes, and the other part of the guide rod penetrates through the second through holes and is connected with the sealing plate.

6. A lift table apparatus as set forth in claim 5 wherein: the lifting platform device is further provided with at least four supporting rods, and each supporting rod is detachably arranged between the platform and the base.

7. A lift table apparatus as set forth in claim 1 wherein: one side of platform and base all sets up the limiting plate, the spout that can supply the pulley to remove is seted up to the limiting plate inside.

8. A lift table apparatus as set forth in claim 1 wherein: the base is also provided with a high-level sensor and a low-level sensor.