CN212609370U

CN212609370U - Full-electric pallet truck

Info

Publication number: CN212609370U
Application number: CN202021217287.0U
Authority: CN
Inventors: 梁杰生; 张拥政; 黎健根
Original assignee: Foshan Yulitong Machinery Co ltd
Current assignee: Foshan Yulitong Machinery Co ltd
Priority date: 2020-06-28
Filing date: 2020-06-28
Publication date: 2021-02-26
Anticipated expiration: 2030-06-28

Abstract

The utility model belongs to the pallet truck field, it discloses an all-electric pallet truck, including front fork case part assembly, back connecting rod drive wheel support frame part assembly, hydro-cylinder, front fork case part assembly includes case body, a pair of fork, front wheel subassembly, push rod, a pair of three heart plates articulated with front wheel subassembly that set up in the fork front end, case body, hydro-cylinder, back connecting rod drive wheel support frame part assembly, three heart plates, case body articulate in proper order; the rear connecting rod driving wheel bearing support assembly is matched with the case body through a sliding/rolling matching component. The pallet truck can effectively reduce the radial impact force borne by the oil cylinder in the running acceleration and running braking processes of the full-electric pallet truck through the sliding/rolling fit between the chassis body, the oil cylinder, the rear connecting rod driving wheel supporting frame component assembly, the three-core plate and the chassis body which are sequentially hinged, and the rear connecting rod driving wheel supporting frame component assembly and the chassis body are combined with each other.

Description

Full-electric pallet truck

Technical Field

The utility model relates to a pallet truck field specifically is a full-electric pallet truck.

Background

The full-electric pallet truck is a pallet cargo carrying device such as a warehouse logistics device. The goods are placed on the pallet with a certain specification and size, the fork and the front wheel frame part of the pallet truck enter the pallet, then the pallet is lifted by the fork and the front wheel frame part to leave the ground, the driving wheel assembly and the electric system control the forward movement, backward movement, steering and parking of the pallet truck, the pallet goods are conveyed to a specified position, the fork and the front wheel frame part of the pallet truck descend and retreat to the pallet, and therefore the pallet goods are conveyed.

The applicant, Jiangsu gold casting machine electro-technology limited corporation, proposed an invention patent application CN201820285783.6 in 2018, which discloses an open type semi-electric pallet truck, comprising an electric driving device, two frame forks, a front wheel, a steering assembly, a rear wheel assembly and a jacking structure for driving the frame forks to lift, wherein the front wheel, the steering assembly, the rear wheel assembly and the jacking structure are arranged on the frame forks, the rear wheel assembly is non-rotatably connected with the steering assembly and can rotate left and right around the axis of the steering assembly together with the steering assembly, the two frame forks are symmetrically arranged on two sides of the rear wheel assembly, a support frame is arranged between the rear ends of the frame forks, the electric driving device is arranged in the support frame, the frame forks are further provided with concave ribs, the concave ribs extend from the rear end parts of the frame forks to the front end parts along the length directions of the frame forks, the rear end of the rear wheel assembly is provided with a rear side wall structure, one end of the rear wall, the other end of the rear side wall structure is connected with the other side of the rear wheel assembly.

The pallet truck represented by the pallet truck carries pallet goods, the pallet truck lifts the pallet goods away from the ground by the pallet fork, the pallet truck moves forwards, backwards, turns and stops, the pallet goods are carried to a specified position, the condition of avoiding personnel and obstacles can be met in the carrying and driving process, the pallet truck needs to brake to slow down or stop driving by emergency braking, as the oil cylinder base and the piston rod are respectively and rigidly connected with the front pallet fork machine box component assembly and the rear driving wheel supporting frame component assembly, the upper part of the oil cylinder is not supported by a connecting rod mechanism or a guide groove guide wheel mechanism, the oil cylinder bears radial impact force for a long time, the oil cylinder sealing ring deforms to damage the oil cylinder to leak oil, and the pallet truck loses the carrying function. Therefore, the existing pallet truck has the defect that an oil cylinder is easy to leak oil.

Therefore, the technical problem to be solved by the scheme is as follows: how to reduce the impact that the hydro-cylinder receives in the pallet truck operation process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a full-electric pallet truck, this pallet truck can effectively reduce the pallet truck and accelerate, go the radial impact force that the braking in-process hydro-cylinder received through the slip/roll cooperation between articulated quick-witted case body, hydro-cylinder, back connecting rod drive wheel supporting rack part assembly, three heartboards, the quick-witted case body combines back connecting rod drive wheel supporting rack part assembly, the quick-witted case body in proper order.

In order to achieve the above object, the utility model provides a following technical scheme: an all-electric pallet truck comprises a front pallet fork truck box component assembly, a rear connecting rod driving wheel supporting frame component assembly and an oil cylinder, wherein the front pallet fork truck box component assembly comprises a case body, a pair of pallet forks, a front wheel component arranged at the front end of the pallet forks, a push rod hinged with the front wheel component and used for pushing a front wheel in the front wheel component to lift, and a pair of three-center plates, wherein shafts of the three-center plates are fixed on the case body; the rear connecting rod driving wheel bearing frame component assembly is matched with the case body in a mode of moving up and down relatively through a sliding/rolling matching component.

In the above full-electric pallet truck, the rear connecting rod drive wheel support frame assembly includes a drive wheel and a drive wheel support frame, and the oil cylinder and the three-core plate are both hinged to the drive wheel support frame.

In the above all-electric pallet truck, the driving wheel support frame is further provided with balance wheels positioned at two sides of the driving wheel.

In the above all-electric pallet truck, the front wheel assembly comprises a front wheel and a connecting plate, the front wheel is connected to one end of the connecting plate, the push rod is hinged to the other end of the connecting plate, and the connecting plate is hinged to the pallet fork; the front wheels in the front wheel assembly are arranged in a front-back mode.

In the above all-electric pallet truck, the chassis body is provided with a hydraulic pump station and a power module for driving the oil pump to operate.

In foretell full-electric pallet truck, still including turning to the assembly, turn to the assembly and include steering handle, turn to the seat and rotate and connect on the drive wheel support frame, steering handle, turn to seat, drive wheel connect gradually, steering handle makes the drive wheel turn to through controlling the rotation of turning to the seat.

In the above all-electric pallet truck, the sliding/rolling engagement assembly includes a vertically arranged guide groove provided in the middle of the chassis body, and a pulley engaged with the guide groove, and the pulley is connected to the rear link drive wheel support frame member assembly.

In practical application, the guide groove can be changed into a sliding groove, the pulley can be changed into a sliding block, and relative movement of the guide groove and the sliding block is realized through sliding fit.

In the above-mentioned all-electric pallet truck, the guide slot is U-shaped, the two guide slots are provided, the open sides of the two guide slots are arranged oppositely, and the pulleys are a pair and are respectively installed in the corresponding guide slots.

In the above all-electric pallet truck, the chassis body is further provided with an upper lug plate and a lower lug plate, the oil cylinder is hinged to the upper lug plate, and the three core plates are connected to the lower lug plate through a shaft.

In the above-mentioned all-electric pallet truck, the drive wheel support frame is further connected with a drive wheel guard bar arranged outside the drive wheel for protecting the drive wheel.

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

the utility model discloses in, chassis body, hydro-cylinder, back connecting rod drive wheel supporting rack part assembly, three heartboards connect gradually articulatedly, combine the slip/roll cooperation between chassis body and the back connecting rod drive wheel supporting rack part assembly through this hinge mechanisms, can make and keep steady action at hinge mechanisms in the motion process, reduce the radial impact force to the hydro-cylinder, its stability that can effectively protect and maintain the hydro-cylinder.

Drawings

Fig. 1 is a perspective view of embodiment 1 of the present invention;

fig. 2 is a perspective view of the embodiment 1 of the present invention with the housings of the respective assemblies removed;

fig. 3 is a front view of embodiment 1 of the present invention with the housings of the respective assemblies removed;

fig. 4 is a perspective view of embodiment 1 of the present invention with the casing of the chassis body removed;

fig. 5 is a perspective view of the sliding fit assembly according to embodiment 1 of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1 to 5, an all-electric pallet truck includes a front fork truck case component assembly 1, a rear connecting rod driving wheel support frame component assembly 2, and an oil cylinder 3, where the front fork truck case component assembly 1 includes a case body 11, a pair of forks 12, a front wheel component disposed at a front end of the forks 12, a push rod 13 hinged to the front wheel component and used for pushing a front wheel 15 of the front wheel component to ascend and descend, and a pair of three core plates 14, a shaft of the three core plates 14 is fixed to the case body 11, one end of the three core plates 14 is hinged to the push rod 13, the other end of the three core plates 14 is hinged to the rear connecting rod driving wheel support frame component assembly 2, the three core plates 14 are similar to a 7-shaped overall shape, and in addition, the case body 11, the oil cylinder 3, the rear connecting rod driving wheel support frame component assembly 2, the three core plates 14, and the case body 11 are sequentially hinged. The rear connecting rod driving wheel bearing support component assembly 2 is matched with the case body 11 through a sliding/rolling matching component 4 in a mode that the rear connecting rod driving wheel bearing support component assembly can move up and down relatively.

In the operation process, if the pallet fork 12 is about to rise, the oil cylinder 3 pushes the case body 11 to rise, the case body 11 drives the three-core plate 14 to rise, the three-core plate 14 is forced to rotate in the process to drive the push rod 13 to retreat, the push rod 13 drives the front wheel assembly to rise, and then the pallet fork 12 rises, in the process, the sliding fit assembly is connected with the front pallet fork case component assembly 1 and the rear connecting rod driving wheel supporting frame component assembly 2, so that the rising and falling processes of the front pallet fork case component assembly 1 are stable, the front pallet fork case component assembly can keep the stability of the front pallet fork case component assembly 1 in the acceleration process, the emergency stop process and the like, the radial push-pull force of the oil cylinder 3 is small, and the oil cylinder 3 is protected.

In the present embodiment, the rear link driving wheel supporting frame assembly 2 includes a driving wheel 21 and a driving wheel supporting frame 22. The driving wheel support frame 22 is mainly used for supporting the driving wheel 21, is also used for connecting the front fork case component assembly 1 and the oil cylinder 3, and is also connected with the steering assembly 5.

Preferably, the driving wheel support frame 22 is further provided with balance wheels 23 positioned at two sides of the driving wheel 21, the front wheel assembly comprises a front wheel 15 and a connecting plate 16, the front wheel 15 is connected to one end of the connecting plate 16, the push rod 13 is hinged to the other end of the connecting plate 16, and the connecting plate 16 is hinged to the fork 12; the front wheels 15 of the front wheel assembly are two arranged in front of each other.

The connecting plates 16 are a pair and are arranged on two sides of the front wheel 15, the front wheel 15 is fixed on a front wheel fixing seat, 2 front wheels 15 are fixed on the front wheel fixing seat, the connecting plates 16 are hinged to the front wheel fixing seat, and the push rods 13 can push the connecting plates 16 to rotate around the hinged position of the fork 12. The connecting plate 16 rotates to drive the front wheel 15 to swing and lift.

A hydraulic pump station and a power module for driving an oil pump to act are arranged in the case body 11, and the power module supplies power to all electronic devices of the pallet truck and comprises a driving wheel 21; further preferably, the steering assembly 5 includes a steering handle 51 and a steering seat 52, the steering seat 52 is rotatably connected to the driving wheel support frame 22, the steering handle 51, the steering seat 52 and the driving wheel 21 are sequentially connected, and the steering handle 51 controls the steering seat 52 to rotate so as to steer the driving wheel 21;

the sliding/rolling engagement assembly 4 includes a vertically arranged guide groove 41 provided at the middle of the cabinet body 11, a pulley 42 engaged with the guide groove 41, the pulley 42 is connected to the rear connecting rod driving wheel supporting frame assembly 2, the chassis body 11 is further provided with an upper ear plate 18 and a lower ear plate 19, the oil cylinder 3 is hinged on the upper lug plate 18, the three-core plate 14 is connected on the lower lug plate 19 through a shaft, the upper and lower ear plates can show that the chassis body 11, the oil cylinder 3 and the rear connecting rod driving wheel supporting frame component assembly 2 are formed by a total of 2 hinged positions, meanwhile, the chassis body 11 and the rear connecting rod driving wheel support frame component assembly 2 are in sliding fit, during the movement of the hinge mechanism, the case body 11 and the rear connecting rod driving wheel support frame component assembly 2 are in sliding fit, and can effectively resist operation impact.

Preferably, in this embodiment, the guide grooves 41 are U-shaped, the two guide grooves 41 are provided, the open sides of the two guide grooves 41 are arranged opposite to each other, the pair of pulleys 42 are respectively installed in the corresponding guide grooves 41, and the driving wheel support frame 22 is further connected with a driving wheel guard bar 6 provided outside the driving wheel 21 for protecting the driving wheel 21.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. An all-electric pallet truck comprises a front pallet fork truck box component assembly, a rear connecting rod driving wheel supporting frame component assembly and an oil cylinder, wherein the front pallet fork truck box component assembly comprises a case body, a pair of pallet forks, a front wheel component arranged at the front end of the pallet forks, a push rod hinged with the front wheel component and used for pushing a front wheel in the front wheel component to lift, and a pair of three-center plates, wherein shafts of the three-center plates are fixed on the case body; the rear connecting rod driving wheel bearing frame component assembly is matched with the case body in a mode of moving up and down relatively through a sliding/rolling matching component.

2. The all-electric pallet truck according to claim 1, wherein the rear link drive wheel support frame assembly comprises a drive wheel, a drive wheel support frame, and the cylinder and the triplex plate are both hinged to the drive wheel support frame.

3. The all-electric pallet truck as claimed in claim 2, wherein the drive wheel support frame is further provided with balance wheels on both sides of the drive wheel.

4. The all-electric pallet truck according to claim 1, wherein the front wheel assembly comprises a front wheel, a connecting plate, the front wheel is connected to one end of the connecting plate, the push rod is hinged to the other end of the connecting plate, and the connecting plate is hinged to the pallet fork; the front wheels in the front wheel assembly are arranged in a front-back mode.

5. The all-electric pallet truck according to claim 1, wherein a hydraulic pump station and a power module for driving the oil pump to operate are disposed in the chassis body.

6. The all-electric pallet truck as claimed in claim 2, further comprising a steering assembly, wherein the steering assembly comprises a steering handle and a steering seat, the steering seat is rotatably connected to the driving wheel support frame, the steering handle, the steering seat and the driving wheel are sequentially connected, and the steering handle controls the steering seat to rotate to steer the driving wheel.

7. The all-electric pallet truck according to claim 1, characterized in that the slide/roll-fit assembly is a roll-fit assembly; the novel chassis comprises a guide groove and a pulley, wherein the guide groove is vertically arranged in the middle of the chassis body, the pulley is matched with the guide groove, and the pulley is connected to a rear connecting rod driving wheel bearing frame component assembly.

8. The all-electric pallet truck according to claim 7, wherein the guide slots are U-shaped, two of the guide slots are arranged with their open sides facing each other, and the pulleys are a pair mounted in the respective guide slots.

9. The all-electric pallet truck according to claim 1, wherein the chassis body further comprises an upper ear plate and a lower ear plate, the oil cylinder is hinged to the upper ear plate, and the three-core plate is connected to the lower ear plate through a shaft.

10. The all-electric pallet truck according to claim 2, wherein a drive wheel guard bar is further attached to the drive wheel support frame and located outside the drive wheel for protecting the drive wheel.