CN220129905U - Downward pressing mechanism of forklift driving wheel - Google Patents

Abstract

The utility model relates to the technical field of forklift driving wheels, and particularly discloses a pushing mechanism of a forklift driving wheel, which comprises a driving wheel assembly and a pushing assembly, wherein the driving wheel assembly comprises a mounting seat and a driving wheel arranged below the mounting seat, and the pushing assembly comprises a pushing spring connected with the top surface of the mounting seat, a pressing plate for compressing the pushing spring, a driving oil cylinder for driving the pressing plate to push down and an in-place detector; after the pressing plate is driven by the lower pressure oil cylinder to move downwards for a preset distance, namely after the pressing plate is pressed down to a preset position, the in-place detector detects that the pressing plate moves to the preset position, at the moment, the in-place detector can feed back signals to the control system and control the lower pressure oil cylinder to be closed, the preset position is a position for applying preset force to the driving wheel, the lower pressure applied to the driving wheel is controllable, the force applied to the driving wheel is prevented from being too large or too small, and the upper and lower positions of the in-place detector are adjustable, so that the force applied to the driving wheel can be adjusted, and the device is suitable for different use occasions.

Description

Downward pressing mechanism of forklift driving wheel

Technical Field

The utility model relates to the technical field of forklift driving wheels, in particular to a pressing mechanism of a forklift driving wheel.

Background

The forklift is a cargo handling vehicle, and is widely applied to occasions such as factories or freight stations because of good short-distance handling performance, the running road conditions of the forklift are greatly different, most of the road conditions are flat, the forklift can normally run, but the driving wheels of the forklift are easy to suspend aiming at the section needing climbing, so that the climbing power of the forklift is insufficient, even the situation of reversing occurs, and the pressing oil cylinder is normally arranged above the driving wheels of the forklift and is used for pressing the driving wheels downwards to keep the driving wheels in contact with the ground.

In the prior art, when the lower pressure oil cylinder presses down the driving wheel, the lower pressure provided for the driving wheel cannot be accurately controlled, and the condition that the driving wheel is damaged due to insufficient lower pressure or overlarge pressure is easily caused.

Disclosure of Invention

The present utility model has been made in view of the foregoing problems, and an object of the utility model is to provide a depressing mechanism of a forklift drive wheel, which can precisely control the depressing force provided to the drive wheel.

In order to achieve the above purpose, the utility model provides a pushing mechanism of a forklift driving wheel, which comprises a driving wheel assembly and a pushing assembly, wherein the driving wheel assembly comprises a mounting seat and a driving wheel arranged below the mounting seat, and the pushing assembly comprises a pushing spring connected with the top surface of the mounting seat, a pressing plate for compressing the pushing spring, a driving oil cylinder for driving the pressing plate to push down and an in-place detector;

the in-place detector is used for detecting the position of the pressing plate, and when the pressing plate is pressed down to a preset height, the in-place detector can control the driving oil cylinder to be closed.

According to the pressing mechanism of the forklift driving wheel, the pressing assembly further comprises guide posts, the two guide posts are symmetrically arranged on the outer side of the mounting seat, the mounting portion is provided with a connecting block, the connecting block is movably sleeved on the guide posts, the pressing spring is sleeved on the guide posts, and the lower end of the pressing spring is in butt joint with the connecting block.

According to the pressing mechanism of the forklift driving wheel, two ends of the pressing plate are respectively sleeved on the guide posts, the lower end face of the pressing plate is in butt joint with the top end of the pressing spring, the driving oil cylinder is located right above the pressing plate, and a piston rod of the driving oil cylinder is connected with the top of the pressing plate.

According to the pressing mechanism of the forklift driving wheel, the in-place detector is set to be a positioning sensor, the positioning sensor is fixed on one side of the guide post and located at a preset height, and when the pressing plate moves to the preset height, the positioning sensor controls the driving oil cylinder to be closed.

According to the pressing mechanism of the forklift driving wheel, a positioning groove is formed in one side, close to the positioning sensor, of the pressing plate, and when the pressing plate is located at a preset height, the positioning groove corresponds to the positioning sensor.

According to the downward pressing mechanism of the forklift driving wheel, a mounting plate is arranged between the top ends of the two guide posts, the driving oil cylinder is fixed on the mounting plate, and the positioning sensor is connected with the mounting plate through a connecting plate;

the connecting plate has first end and second end, be equipped with the constant head tank that arranges along the vertical direction on the first end, first end pass through the locating pin with the mounting panel meets, the locating pin wears to establish the constant head tank with the mounting panel meets, the locating pin can with the connecting plate butt, the position finding sensor is fixed on the second end.

The utility model has the following beneficial effects: after the pressing plate is driven by the lower pressure oil cylinder to move downwards for a preset distance, namely after the pressing plate is pressed down to a preset position, the in-place detector detects that the pressing plate moves to the preset position, at the moment, the in-place detector can feed back signals to the control system and control the lower pressure oil cylinder to be closed, the preset position is a position for applying preset force to the driving wheel, the lower pressure applied to the driving wheel is controllable, the force applied to the driving wheel is prevented from being too large or too small, and the upper and lower positions of the in-place detector are adjustable, so that the force applied to the driving wheel can be adjusted, and the device is suitable for different use occasions.

Drawings

FIG. 1 is a schematic overall structure of an embodiment;

FIG. 2 is a schematic view of a pressing assembly of an embodiment;

FIG. 3 is a schematic diagram of an embodiment of an in-place detector assembled with a mounting plate.

In the figure: 1. a drive wheel assembly; 11. a mounting base; 111. a connecting block; 12. a driving wheel; 2. pressing down the assembly; 21. pressing down the spring; 22. a pressing plate; 221. a positioning groove; 23. a driving oil cylinder; 24. an in-place detector; 241. a connecting plate; 241a, positioning grooves; 242. a positioning pin; 25. a guide post; 26. and (3) mounting a plate.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

As shown in fig. 1-3, a pressing mechanism of a forklift driving wheel comprises a driving wheel assembly 1 and a pressing assembly 2, wherein the driving wheel assembly 1 comprises a mounting seat 11 and a driving wheel 12 arranged below the mounting seat 11, the pressing assembly 2 comprises a pressing spring 21 connected with the top surface of the mounting seat 11, a pressing plate 22 for compressing the pressing spring 21, a driving cylinder 23 for driving the pressing plate 22 to press down, and an in-place detector 24, the in-place detector 24 is used for detecting the position of the pressing plate 22, when the pressing plate 22 is pressed down to a preset height, the in-place detector 24 can control to close the driving cylinder 23, namely, the in-place detector 24 is fixed to the preset height, when the pressing plate 22 is pressed down to the height, the in-place detector 24 can send an in-place signal, and control the driving cylinder 23 to close through the signal, specifically, when the pressing plate 22 is pressed down to the preset height, the pressing spring 21 is compressed, the compression quantity of the pressing spring 21 can be calculated according to the preset height, the elasticity coefficient of the pressing spring 21 can be known, the elasticity coefficient of the pressing spring 21 can be controlled according to the elasticity coefficient of the product of the pressing spring 21, the elasticity coefficient can be controlled, and the applied to the position of the pressing force can be accurately controlled, and the pressing force can be applied to the driving wheel 12.

Further, the pressing component 2 further comprises a guide pillar 25, the two guide pillars 25 are symmetrically arranged at the outer side of the mounting seat 11, the mounting portion is provided with a connecting block 111, the connecting block 111 is movably sleeved on the guide pillar 25, the pressing spring 21 is sleeved on the guide pillar 25, the lower end of the pressing spring 21 is abutted against the connecting block 111, the guide pillar 25 provides a guiding effect for the mounting seat 11 and the up-and-down movement of the pressing spring 21, and the pressing plate 22 provides an elastic force for the connecting block 111 of the mounting seat 11 in the compression process of driving the pressing spring 21, so as to provide a pressing force for the driving wheel 12.

Further, two ends of the pressing plate 22 are respectively sleeved on the guide posts 25, the lower end face of the pressing plate 22 is abutted against the top end of the pressing spring 21, the driving oil cylinder 23 is located right above the pressing plate 22, a piston rod of the driving oil cylinder 23 is connected with the top of the pressing plate 22, the driving oil cylinder 23 controls the piston rod to extend out, the pressing plate 22 can be driven to move downwards along the guide posts 25, the pressing plate 22 can compress the pressing spring 21 when moving downwards, and the pressing force of the pressing spring 21 can be obtained according to the compression amount of the pressing spring 21.

Furthermore, the in-place detector 24 is a positioning sensor fixed on one side of the guide post 25 and located at a preset height, when the platen 22 moves to the preset height, the positioning sensor controls the driving cylinder 23 to be closed, and a positioning groove 221 is provided on one side of the platen 22 close to the positioning sensor, when the platen 22 is located at the preset height, the positioning groove 221 corresponds to the positioning sensor, that is, the positioning sensor is used for sensing the positioning groove 221 on the platen 22, so that the measurement range of the positioning sensor can be reduced, and the measurement accuracy of the positioning sensor can be improved.

Further, a mounting plate 26 is arranged between the top ends of the two guide posts 25, the driving oil cylinder 23 is fixed on the mounting plate 26, the positioning sensor is connected with the mounting plate 26 through a connecting plate 241, the driving oil cylinder 23 and the connecting plate 241 are mounted and fixed through the mounting plate 26, meanwhile, a first end and a second end are arranged on the connecting plate 241, a positioning groove 241a which is arranged along the vertical direction is arranged on the first end, the first end is connected with the mounting plate 26 through a positioning pin 242, the positioning pin 242 is arranged on the positioning groove 241a in a penetrating way and is connected with the mounting plate 26, the positioning pin 242 can be abutted with the connecting plate 241, and the positioning sensor is fixed on the second end.

The technical scheme of the utility model is explained in detail above with reference to the accompanying drawings, and the described embodiments are used for helping to understand the idea of the utility model. The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions in a similar manner without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, descriptions such as those referred to herein as "first," "second," "a," and the like are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or an implicit indication of the number of features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present utility model.

Claims (6)

1. The pressing mechanism of the forklift driving wheel is characterized by comprising a driving wheel assembly and a pressing assembly, wherein the driving wheel assembly comprises a mounting seat and a driving wheel arranged below the mounting seat, and the pressing assembly comprises a pressing spring connected with the top surface of the mounting seat, a pressing plate for compressing the pressing spring, a driving oil cylinder for driving the pressing plate to press down and an in-place detector;

the in-place detector is used for detecting the position of the pressing plate, and when the pressing plate is pressed down to a preset height, the in-place detector can control the driving oil cylinder to be closed.

2. The pressing mechanism of a forklift driving wheel according to claim 1, wherein the pressing assembly further comprises guide posts, the two guide posts are symmetrically arranged on the outer side of the mounting seat, the mounting seat is provided with a connecting block, the connecting block is movably sleeved on the guide posts, the pressing spring is sleeved on the guide posts, and the lower end of the pressing spring is abutted to the connecting block.

3. The pressing mechanism of a forklift driving wheel according to claim 2, wherein two ends of the pressing plate are respectively sleeved on the guide posts, the lower end face of the pressing plate is in butt joint with the top end of the pressing spring, the driving oil cylinder is located right above the pressing plate, and a piston rod of the driving oil cylinder is connected with the top of the pressing plate.

4. The pressing mechanism of a forklift driving wheel according to claim 2, wherein the in-place detector is provided with a positioning sensor, the positioning sensor is fixed on one side of the guide post and located at a preset height, and when the pressing plate moves to the preset height, the positioning sensor controls the driving cylinder to be closed.

5. The pressing mechanism of claim 4, wherein a positioning groove is formed in a side of the pressing plate, which is close to the positioning sensor, and the positioning groove corresponds to the positioning sensor when the pressing plate is located at a preset height.

6. The pressing mechanism of a forklift driving wheel according to claim 4, wherein a mounting plate is arranged between the top ends of the two guide posts, the driving oil cylinder is fixed on the mounting plate, and the positioning sensor is connected with the mounting plate through a connecting plate;

the connecting plate has first end and second end, be equipped with the constant head tank that arranges along the vertical direction on the first end, first end pass through the locating pin with the mounting panel meets, the locating pin wears to establish the constant head tank with the mounting panel meets, the locating pin can with the connecting plate butt, the position finding sensor is fixed on the second end.