CN211644472U

CN211644472U - Rotatable formula lift platform truck

Info

Publication number: CN211644472U
Application number: CN202020127744.0U
Authority: CN
Inventors: 冯渠浪
Original assignee: Wuxi Leai Machinery Manufacturing Co Ltd
Current assignee: Wuxi Leai Machinery Manufacturing Co Ltd
Priority date: 2020-01-20
Filing date: 2020-01-20
Publication date: 2020-10-09
Anticipated expiration: 2030-01-20

Abstract

The utility model relates to the technical field of lifting trolleys, in particular to a rotatable lifting trolley, which comprises a vertically lifting jacking table, wherein the jacking table comprises a bottom plate and a panel which are arranged from bottom to top, an outer tooth type slewing bearing is connected between the bottom plate and the panel, the outer ring of the outer tooth type slewing bearing is fixedly connected with the panel, the inner ring of the outer tooth type slewing bearing is fixedly connected with the bottom plate, and a motor for driving the outer ring to rotate is fixed on the bottom plate; the lower surface of the panel is fixed with four positioning plates, the connecting lines of the four positioning plates form a square, the center of the square is positioned on the central axis of the outer tooth type slewing bearing, the bottom plate is fixed with a double-head cylinder, one end of a piston rod of the double-head cylinder points to the positioning plates, and the other end of the piston rod points to the tooth surface of the outer tooth type slewing bearing. The four positioning plates are matched with the double-head cylinder, so that the panel can rotate 90 degrees, 180 degrees, 270 degrees and 360 degrees relative to the bottom plate and then is positioned.

Description

Rotatable formula lift platform truck

Technical Field

The utility model belongs to the technical field of the technique of lift platform truck and specifically relates to a rotatable formula lift platform truck is related to.

Background

In a modern large-scale automatic production line, when a workpiece is conveyed to an operation station by a conveyor, the workpiece is often jacked up and separated from the conveyor, so that a series of process operations are completed, at the moment, equipment called a jacking table is used, and the currently used jacking table adopts a cylinder or a motor as a power source and is matched with a linear guide rail as jacking guide. The jacking table has two types of power and guiding.

The utility model with publication number CN104355267A provides a steel jacking and conveying device, which comprises a supporting seat, a jacking table and a screw rod, wherein one end of the screw rod is rotatably connected with the jacking table, and the other end of the screw rod is sleeved with a nut and is in threaded connection with the supporting seat; the supporting seat is provided with two guide holes, and a bushing is arranged in each guide hole; the jacking table is connected with two guide rods which respectively extend into the bushings; the shape of the jacking platform can be set according to specific requirements, so that the jacking platform is matched with corresponding steel. The steel jacking and conveying device has the following disadvantages: the jacking table is limited by the guide rod and cannot rotate, so that the jacking table cannot be flexibly rotated to an appointed state.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a rotatable formula lift platform truck has the advantage that can nimble arbitrary angle of rotation and location are appointed state.

The above object of the present invention can be achieved by the following technical solutions: a rotatable lifting trolley comprises a vertically lifting platform, wherein the lifting platform comprises a bottom plate and a panel which are arranged from bottom to top, an outer tooth type slewing bearing is connected between the bottom plate and the panel, the outer ring of the outer tooth type slewing bearing is fixedly connected with the panel, the inner ring of the outer tooth type slewing bearing is fixedly connected with the bottom plate, and a motor for driving the outer ring to rotate is fixed on the bottom plate; the lower surface of the panel is fixed with four positioning plates, the connecting lines of the four positioning plates form a square, the center of the square is positioned on the central axis of the outer tooth type slewing bearing, the bottom plate is fixed with a double-head cylinder, one end of a piston rod of the double-head cylinder points to the positioning plates, and the other end of the piston rod points to the tooth surface of the outer tooth type slewing bearing.

Through adopting above-mentioned technical scheme, the panel has two kinds of rotational positioning modes: when a piston rod of the double-head cylinder is clamped in the positioning plate, the panel can be positioned, so that the panel can be positioned after rotating 90 degrees, 180 degrees, 270 degrees and 360 degrees relative to the bottom plate respectively by utilizing the matching of the four positioning plates and the double-head cylinder; and secondly, when a piston rod of the double-head cylinder is clamped in a tooth surface of the outer tooth type slewing bearing, the panel can be positioned, so that the panel can be positioned after rotating at any angle relative to the bottom plate by utilizing the matching of an outer ring of the outer tooth type slewing bearing and the double-head cylinder.

Preferably, the locating plate is a vertically arranged angle steel plate, and an opening of the angle steel plate faces to a piston rod of the double-head cylinder which rotates to the position.

Through adopting above-mentioned technical scheme, angle steel plate has stable in structure's advantage, uses angle steel plate as the locating plate, can make the panel stable positioning.

Preferably, a wedge-shaped insert block is fixed at one end, facing the outer tooth type slewing bearing, of a piston rod of the double-head cylinder.

By adopting the technical scheme, the piston rod and the tooth surface of the outer tooth type slewing bearing can be stably inserted and connected, and the piston rod and the outer tooth type slewing bearing are prevented from slipping when in contact.

Preferably, one end of the piston rod of the double-head cylinder, which faces the positioning plate, is sleeved with a rubber soft sleeve.

Through adopting above-mentioned technical scheme, the clearance between piston rod and the locating plate inner wall has been filled to the rubber soft cover, prevents to rock about after the panel location.

Preferably, a limiting sleeve is fixed on the bottom plate, a limiting hole is formed in the limiting sleeve, and a piston rod of the double-head cylinder penetrates through the limiting hole.

Through adopting above-mentioned technical scheme, the stop collar makes the piston rod can receive bigger horizontal force, makes the piston rod can scram the panel when the panel is rotatory.

Preferably, the bottom plate comprises a first square steel pipe and a second square steel pipe which are horizontally arranged and vertically connected, angle steel is arranged on the bottom plate, a base plate is arranged on the upper surface of the angle steel, and an inner ring of the outer tooth type slewing bearing is fixedly connected with the base plate.

By adopting the technical scheme, the height of the panel relative to the bottom plate is adjusted by controlling the welding height of the angle steel on the bottom plate.

Preferably, a reinforcing plate is connected between the first square steel pipe and the second square steel pipe, and the double-head cylinder is fixed on the reinforcing plate.

Through adopting above-mentioned technical scheme, the reinforcing plate has not only improved the structural strength of bottom plate, provides the mounted position for double-end cylinder moreover.

Preferably, the motor is fixed to the reinforcing plate.

Through adopting above-mentioned technical scheme, make the structure of lift platform truck compacter.

To sum up, the utility model discloses a following at least one useful technological effect:

1. when a piston rod of the double-head cylinder is clamped in the positioning plate, the panel can be positioned, so that the panel can be positioned after rotating 90 degrees, 180 degrees, 270 degrees and 360 degrees relative to the bottom plate respectively by utilizing the matching of the four positioning plates and the double-head cylinder;

2. when a piston rod of the double-head cylinder is clamped in a tooth surface of the outer tooth type slewing bearing, the panel can be positioned, so that the panel can be positioned after rotating for any angle relative to the bottom plate by matching the outer ring of the outer tooth type slewing bearing with the double-head cylinder.

Drawings

Fig. 1 is a schematic view of the overall structure of a rotatable lift truck;

FIG. 2 is a schematic view of a jacking table structure of the rotatable lift truck;

FIG. 3 is a schematic view of the hidden panel of FIG. 2;

fig. 4 is a schematic structural view of a double-headed cylinder.

In the figure, 1, a jacking table; 2. a base plate; 3. a panel; 4. an external tooth type slewing bearing; 5. a motor; 6. positioning a plate; 7. a double-ended cylinder; 8. a wedge-shaped insert block; 9. a rubber soft sleeve; 10. a limiting sleeve; 11. a first square steel pipe; 12. a second square steel tube; 13. angle steel; 14. a base plate; 15. a reinforcing plate; 16. a base; 17. a wheel; 18. a hydraulic cylinder; 19. a guide post; 20. a bushing; 21. a gear.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a rotatable formula elevating platform truck, including base 16, base 16's head and afterbody all are equipped with a pair of wheel 17, and base 16 is fixed down and is used for the rotatory motor 5 of drive wheel 17, and starter motor 5 can make base 16 walk on the guide rail. The lower surface of the base 16 is fixed with a vertical hydraulic cylinder 18, a piston rod of the hydraulic cylinder 18 penetrates through the base 16 and then is fixedly connected with the jacking table 1, the lower surface of the jacking table 1 is fixed with four vertical guide posts 19, and the piston rod of the hydraulic cylinder 18 is positioned in the centers of the four guide posts 19. The base 16 is provided with a hole, a bushing 20 is fixed in the hole, and the guide post 19 penetrates through the bushing 20.

As shown in fig. 2, the jacking table 1 is composed of a bottom plate 2, an outer toothed slewing bearing 4 and a panel 3 which are arranged from bottom to top, wherein an outer ring of the outer toothed slewing bearing 4 is fixedly connected with the panel 3 through screws, and an inner ring of the outer toothed slewing bearing 4 is fixedly connected with the bottom plate 2 through screws. The bottom plate 2 is formed by welding two first square steel pipes 11 parallel to each other and two second square steel pipes 12 parallel to each other, and the second square steel pipes 12 and the first square steel pipes 11 are horizontally arranged and perpendicular to each other.

As shown in fig. 3, two second square steel tubes 12 are located between two first square steel tubes 11, angle steel 13 is welded to each of the two second square steel tubes 12, a backing plate 14 is welded to the upper surface of each angle steel 13, the upper surface of each backing plate 14 is horizontal, and the inner ring of the outer tooth type slewing bearing 4 is fixed to the upper surface of each backing plate 14. The height of the panel 3 relative to the base plate 2 can be adjusted by controlling the welding height of the angle iron 13 on the base plate 2.

As shown in fig. 2, reinforcing plates 15 are welded to the bottom plate 2 at the joint of the second square steel tube 12 and the first square steel tube 11, wherein the double-headed cylinder 7 is horizontally fixed to one reinforcing plate 15, and the motor 5 is fixed to the other reinforcing plate 15.

As shown in fig. 3, the motor 5 is connected with a gear 21 in a driving manner, the gear 21 is meshed with the outer ring gear surface of the outer tooth type slewing bearing 4, and the motor 5 is started to drive the panel 3 to rotate. A limiting sleeve 10 is fixed on the reinforcing plate 15, a limiting hole is formed in the limiting sleeve 10, a piston rod of the double-head cylinder 7 penetrates through the limiting hole, and the piston rod is in sliding fit with the limiting hole. The stop collar 10 enables the piston rod to be subjected to a greater horizontal force, enabling the piston rod to scram the face plate 3 when the face plate 3 is rotated.

As shown in fig. 2, four positioning plates 6 are fixed on the lower surface of the panel 3, the positioning plates 6 are angle steel plates which are vertically arranged, and the openings of the angle steel plates face the piston rods of the double-headed cylinders 7 which rotate to the right position. The other end of the piston rod of the double-head cylinder 7 points to the outer ring tooth surface of the outer-tooth type slewing bearing 4, one end of the piston rod, which faces the outer-tooth type slewing bearing 4, is fixed with a wedge-shaped insert block 8 (see fig. 4), and the wedge-shaped insert block 8 can be inserted between adjacent teeth of the outer-tooth type slewing bearing 4. The connecting lines of the four positioning plates 6 form a square, and the center of the square is positioned on the central axis of the outer tooth type slewing bearing 4. One end of a piston rod of the double-head cylinder 7 facing the positioning plate 6 is sleeved with a rubber soft sleeve 9, and the rubber soft sleeve 9 fills a gap between the piston rod and the positioning plate 6 and prevents the panel 3 from shaking left and right after being positioned.

The implementation principle of the embodiment is as follows: the panel 3 has two rotational positioning modes: when a piston rod of the double-head cylinder 7 is clamped in the positioning plate 6, the panel 3 can be positioned, so that the panel 3 can be positioned after rotating 90 degrees, 180 degrees, 270 degrees and 360 degrees relative to the bottom plate 2 respectively by matching the four positioning plates 6 with the double-head cylinder 7; secondly, when the piston rod of the double-head cylinder 7 is clamped in the tooth surface of the outer tooth type slewing bearing 4, the panel 3 can also be positioned, so the panel 3 can be positioned after rotating at any angle relative to the bottom plate 2 by utilizing the matching of the outer ring of the outer tooth type slewing bearing 4 and the double-head cylinder 7.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a rotatable formula lift platform truck, includes vertical lift's jacking platform (1), its characterized in that: the jacking platform (1) comprises a bottom plate (2) and a panel (3) which are arranged from bottom to top, an outer tooth type slewing bearing (4) is connected between the bottom plate (2) and the panel (3), the outer ring of the outer tooth type slewing bearing (4) is fixedly connected with the panel (3), the inner ring of the outer tooth type slewing bearing (4) is fixedly connected with the bottom plate (2), and a motor (5) for driving the outer ring to rotate is fixed on the bottom plate (2); the lower surface of the panel (3) is fixed with four positioning plates (6), the connecting lines of the four positioning plates (6) form a square, the center of the square is positioned on the central axis of the outer tooth type slewing bearing (4), the bottom plate (2) is fixed with a double-head cylinder (7), one end of a piston rod of the double-head cylinder (7) points to the positioning plates (6), and the other end of the piston rod points to the tooth surface of the outer tooth type slewing bearing (4).

2. The rotatable lift trolley of claim 1, wherein: the positioning plate (6) is a vertically arranged angle steel plate, and an opening of the angle steel plate faces to a piston rod of the double-head cylinder (7) which rotates to the position.

3. The rotatable lift trolley of claim 1, wherein: and a wedge-shaped insert block (8) is fixed at one end, facing the outer tooth type slewing bearing (4), of a piston rod of the double-head cylinder (7).

4. The rotatable lift trolley of claim 1, wherein: one end of a piston rod of the double-head cylinder (7) facing the positioning plate (6) is sleeved with a rubber soft sleeve (9).

5. The rotatable lift trolley of claim 1, wherein: a limiting sleeve (10) is fixed on the bottom plate (2), a limiting hole is formed in the limiting sleeve (10), and a piston rod of the double-head cylinder (7) penetrates through the limiting hole.

6. The rotatable lift trolley of claim 1, wherein: the bottom plate (2) comprises a first square steel pipe (11) and a second square steel pipe (12) which are horizontally arranged and vertically connected, angle steel (13) is arranged on the bottom plate (2), a backing plate (14) is arranged on the upper surface of the angle steel (13), and the inner ring of the outer tooth type slewing bearing (4) is fixedly connected with the backing plate (14).

7. The rotatable lift trolley of claim 6, wherein: and a reinforcing plate (15) is connected between the first square steel pipe (11) and the second square steel pipe (12), and the double-head cylinder (7) is fixed on the reinforcing plate (15).

8. The rotatable lift trolley of claim 7 wherein: the motor (5) is fixed on the reinforcing plate (15).