Cam type steering wheel lifting mechanism

Abstract

The utility model discloses a cam type steering wheel lifting mechanism, and belongs to the field of AGV equipment. The cam type steering wheel lifting mechanism comprises a mounting seat, a guide rod, a spring, a driving lifting plate, a cam assembly and a power part, the mounting seat and the cam assembly are mounted on a vehicle body, the guide rod is mounted on the mounting seat, the spring and the driving lifting plate sleeve the guide rod, the upper end of the spring is matched with the mounting seat, and the driving lifting plate is matched with the lower end of the spring. The power piece is matched with the cam assembly, the driving lifting plate is used for installing a steering wheel, and the cam assembly is arranged below the driving lifting plate. The driving lifting plate and the steering wheel can be driven to overcome the elastic force of the spring by rotating the cam assembly through the power piece, so that the driving lifting plate and the steering wheel are lifted to a preset position, the resistance of the failed steering wheel is reduced, the failed unmanned forklift is convenient to carry, and the problem that the failed unmanned forklift is inconvenient to carry in the prior art is solved.

Description

Technical Field

[0001] The utility model belongs to the field of AGV equipment, and specifically relates to a cam-type steering wheel lifting mechanism. Background Art

[0002] In the Chinese utility model patent with the authorization announcement date: November 28, 2023, the authorization announcement number: CN 220098437 U, and the name: A handling robot, it is disclosed that "the walking assembly includes: a driving wheel installed below the base support plate, a universal wheel installed below the universal mounting plate, and a load-bearing wheel installed below the wide leg". The driving wheel of this handling robot is a steerable wheel that can automatically turn, and unmanned handling can be achieved through the steerable wheel. However, when a failure such as damage to the motor of the driving wheel occurs, the faulty driving wheel instead becomes a resistance to the handling robot. In this case, handling the faulty unmanned forklift has always been a difficult problem. Summary of the Utility Model

[0003] Utility Model Purpose: To provide a cam-type steering wheel lifting mechanism, which can lift the steering wheel by rotating the cam with a power component, reduce the resistance of the faulty steering wheel, facilitate the handling of the faulty unmanned forklift, and solve the problem that the existing faulty unmanned forklift is inconvenient to handle.

[0004] The technical solution of the utility model is as follows: A cam-type steering wheel lifting mechanism includes: a mounting seat, a guide rod, a spring, a driving lifting plate, a cam assembly, and a power component.

[0005] The mounting seat and the cam assembly are installed on the vehicle body, the guide rod is installed on the mounting seat, the spring and the driving lifting plate are sleeved on the guide rod, the upper end of the spring is matched with the mounting seat, the driving lifting plate is matched with the lower end of the spring, and the power component is matched with the cam assembly.

[0006] The driving lifting plate is used to install the steering wheel, the cam assembly is arranged below the driving lifting plate, and the power component is used to drive the cam assembly to rotate, so that the cam assembly drives the driving lifting plate and the steering wheel to move upward to a predetermined position.

[0007] In a further embodiment, the cam assembly includes: a lifting bearing seat, a camshaft, and a cam member.

[0008] The lifting bearing seat is installed on the vehicle body, the camshaft is installed on the lifting bearing seat, and the cam member is installed on the camshaft.

[0009] The cam member is arranged below the driving lifting plate, the power component is matched with the camshaft, and the power component drives the cam member to rotate through the camshaft.

[0010] In a further embodiment, the cam member is of a circular structure, and the cam member is eccentrically matched with the camshaft.

[0011] In a further embodiment, the cam assembly further includes: an outer bearing, which is installed on the outer side of the cam member, and the outer bearing cooperates with the driving lifting plate to improve the service life and reduce the rotational resistance.

[0012] In a further embodiment, the lifting mechanism further includes: a limiting member, which is arranged at the bottom end of the driving lifting plate, is located on the rotation path of the cam assembly, and is used to limit the rotation angle of the cam assembly to prevent excessive rotation.

[0013] In a further embodiment, the limiting member is a limiting bolt arranged at the bottom end of the driving lifting plate.

[0014] Or the limiting member is a convex structure at the bottom end of the driving lifting plate.

[0015] In a further embodiment, the power member is detachably connected to the cam assembly.

[0016] In a further embodiment, the power member includes: a rocker or a manual wrench or an electric wrench or a pneumatic wrench.

[0017] The beneficial effect of the present utility model is that: in this application, by arranging the cam-type steering wheel lifting mechanism between the steering wheel and the vehicle body, the power member rotates the cam assembly to drive the driving lifting plate and the steering wheel to overcome the elastic force of the spring, so that it rises to a predetermined position, reducing the resistance of the faulty steering wheel and facilitating the handling of the faulty driverless forklift, and solving the problem that the faulty driverless forklift in the prior art is not convenient to handle. Description of the Drawings

[0018] Figure 1 is a partial cross-sectional view of the present utility model arranged inside the vehicle body.

[0019] Figure 2 is a schematic view of an embodiment of the present utility model provided with a limiting member.

[0020] Figure 3 is a partial axonometric view of the present utility model arranged inside the vehicle body.

[0021] Figure 4 is an independent axonometric view of the cam assembly of the present utility model.

[0022] Figure 5 is a cross-sectional view of the cam assembly of the present utility model.

[0023] The reference numerals shown in the drawings are: steering wheel 100, mounting seat 200, guide rod 300, spring 400, driving lifting plate 500, limiting member 501, cam assembly 600, lifting bearing seat 601, camshaft 602, cam member 603, outer bearing 604, power member 700. Detailed Implementation Manner

[0024] In the following description, a large number of specific details are given to provide a more thorough understanding of the present utility model. However, it is obvious to those skilled in the art that the present utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present utility model, some technical features well known in the art are not described.

[0025] The present utility model discloses a cam-type steering wheel lifting mechanism. By rotating the cam with a power component, the steering wheel can be lifted, reducing the resistance of the faulty steering wheel and facilitating the handling of a faulty driverless forklift, thus solving the problem that it is inconvenient to handle a faulty driverless forklift in the prior art.

[0026] As Figure 1 shown, the cam-type steering wheel 100 lifting mechanism includes: a mounting seat 200, a guide rod 300, a spring 400, a driving lifting plate 500, a cam assembly 600, and a power component 700.

[0027] The mounting seat 200 and the cam assembly 600 are installed on the vehicle body. The guide rod 300 is installed on the mounting seat 200. The spring 400 and the driving lifting plate 500 are sleeved on the guide rod 300. The upper end of the spring 400 cooperates with the mounting seat 200, and the driving lifting plate 500 cooperates with the lower end of the spring 400. The power component 700 cooperates with the cam assembly 600.

[0028] The driving lifting plate 500 is used to install the steering wheel 100. The cam assembly 600 is arranged below the driving lifting plate 500. The power component 700 is used to drive the cam assembly 600 to rotate, so that the cam assembly 600 drives the driving lifting plate 500 and the steering wheel 100 to move upward to a predetermined position.

[0029] Among them, a plurality of universal wheels are installed under the vehicle body of the forklift. When the cam assembly 600 drives the driving lifting plate 500 and the steering wheel 100 to move upward to a predetermined position, the universal wheels assist manual handling of the faulty forklift.

[0030] In this embodiment, a shock absorber can be arranged between the driving lifting plate 500 and the mounting seat 200.

[0031] A damping member can also be provided on the driving lifting plate 500, so that the driving lifting plate 500 is installed on the guide rod 300 through the damping member, and the mounting seat 200, the guide rod 300, the spring 400, and the driving lifting plate 500 form a shock absorber for the steering wheel 100.

[0032] The steering wheel 100 can also be installed on the driving lifting plate 500 through a shock absorber, or the steering wheel 100 can be not provided with a shock absorber.

[0033] Regarding the cam assembly 600, asFigure 4 and 5 The cam assembly 600 shown in 5 includes: a lifting bearing seat 601, a camshaft 602, and a cam member 603.

[0034] The lifting bearing seat 601 is mounted on the vehicle body, the camshaft 602 is mounted on the lifting bearing seat 601, and the cam member 603 is mounted on the camshaft 602.

[0035] The cam member 603 is disposed below the driving lifting plate 500, and the power member 700 cooperates with the camshaft 602. The power member 700 drives the cam member 603 to rotate through the camshaft 602.

[0036] As Figure 5 shown, the lifting bearing seat 601 includes a bearing seat, an inner bearing, and two snap rings. The inner bearing is mounted on the bearing seat through two snap rings, and the inner bearing is a deep groove ball bearing.

[0037] In this embodiment, the cam member 603 may be a cam structure with one end large and the other end small, or as Figure 4 shown, the cam member 603 is a circular structure, and the cam member 603 is eccentrically mated with the camshaft 602.

[0038] In this embodiment, the cam assembly 600 further includes: an outer bearing 604, which is mounted on the outside of the cam member 603, and the outer bearing 604 cooperates with the driving lifting plate 500.

[0039] As Figure 5 shown, bolts are mounted on the cam member 603, and the bolts limit the outer bearing 604 to mount the outer bearing 604 on the cam member 603.

[0040] Through the outer bearing 604, the friction between the cam member 603 and the driving lifting plate 500 can be reduced, the service life can be improved, and the rotational resistance can be reduced.

[0041] In Figure 2 the embodiment shown, the cam-type steering wheel 100 lifting mechanism further includes: a limiting member 501, which is disposed at the bottom end of the driving lifting plate 500, is located on the rotation path of the cam assembly 600, and is used to limit the rotation angle of the cam assembly 600.

[0042] Wherein the limiting member 501 is Figure 2 the limiting bolt shown disposed at the bottom end of the driving lifting plate 500, or the limiting member 501 is a protruding structure at the bottom end of the driving lifting plate 500.

[0043] When the cam assembly 600 is rotated to drive the driving lifting plate 500 and the steering wheel 100 to move upward to a predetermined position, the cam assembly 600 abuts against the limiting member 501, causing the limiting member 501 to rotate the cam assembly 600 to prevent over-rotation.

[0044] Regarding the power component 700, the power component 700 can be fixedly connected to the cam assembly 600, or the power component 700 can be detachably connected to the cam assembly 600.

[0045] Among them, the power component 700 includes: a rocker or a manual wrench or an electric wrench or a pneumatic wrench.

[0046] As Figure 4 shown, one end of the camshaft 602 passing through the lifting bearing seat 601 is an external hexagonal structure. In actual applications, one end of the camshaft 602 passing through the lifting bearing seat 601 can also be an internal hexagonal structure or other structures.

[0047] The power component 700 is provided with a structure that cooperates with the external hexagonal structure or the internal hexagonal structure, etc. As Figure 3 shown, the power component 700 is a rocker with an internal hexagonal sleeve at its end. When in use, the sleeve of the rocker is sleeved on the external hexagonal structure of the camshaft 602.

[0048] Working principle: When the steering wheel 100 fails, the sleeve of the rocker is sleeved on the external hexagonal structure of the camshaft 602, and then the rocker is rotated clockwise to make the cam member 603 rotate to the position where it contacts the limiting member 501. At this time, the cam member 603 can drive the driving lifting plate 500 and the steering wheel 100 to overcome the elastic force of the spring 400 and rise to a predetermined position, and then the failed forklift is transported to a predetermined area by a universal wheel under the vehicle body to assist manual or other handling devices.

[0049] When the steering wheel 100 is normal, the cam assembly 600 is rotated in the reverse direction through the rocker, and the steering wheel 100 is lowered to a predetermined position by the elastic force of the spring 400 to make the steering wheel 100 work normally.

[0050] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as a limitation of the present invention itself. Various changes can be made to it in form and detail without departing from the spirit and scope of the present invention defined by the appended claims.

Claims

1. A cam type steering wheel lifting mechanism, characterized in that: include: Mounting seat, guide rod, spring, drive lift plate, cam assembly and power piece; The mounting seat and the cam assembly are mounted on the vehicle body, the guide rod is mounted on the mounting seat, the spring and the driving lifting plate are sleeved on the guide rod, the upper end of the spring is matched with the mounting seat, the driving lifting plate is matched with the lower end of the spring, and the power member is matched with the cam assembly; The driving lifting plate is used to install the steering wheel, the cam assembly is arranged below the driving lifting plate, and the power member is used to drive the cam assembly to rotate, so that the cam assembly drives the driving lifting plate and the steering wheel to move upward to a predetermined position.

2. A cam type steering wheel lifting mechanism according to claim 1, characterized in that: The cam assembly comprises: a lifting bearing seat, a cam shaft and a cam member; The lifting bearing seat is installed on the vehicle body, the camshaft is installed on the lifting bearing seat, and the cam member is installed on the camshaft; The cam member is arranged below the driving lifting plate, the power member cooperates with the camshaft, and the power member drives the cam member to rotate through the camshaft.

3. A cam type steering wheel lifting mechanism according to claim 2, characterized in that: The cam member is a circular structure, and the cam member is eccentrically matched with the cam shaft.

4. A cam type steering wheel lifting mechanism according to claim 2 or 3, characterized in that: The cam assembly further comprises an outer bearing mounted on the outer side of the cam member, wherein the outer bearing cooperates with the driving lifting plate.

5. The cam type steering wheel lifting mechanism according to claim 1, characterized in that: Also includes: A limiting member is arranged at the bottom end of the driving lifting plate and is located on the rotation path of the cam assembly, and is used to limit the rotation angle of the cam assembly.

6. A cam type steering wheel lifting mechanism according to claim 5, characterized in that: The limiting member is a limiting bolt arranged at the bottom end of the driving lifting plate; Or the limiting member is a protruding structure at the bottom end of the driving lifting plate.

7. The cam type steering wheel lifting mechanism according to claim 1, characterized in that: The power member is detachably connected to the cam assembly.

8. A cam type steering wheel lifting mechanism according to claim 7, characterized in that: The power part includes: a rocker or a manual wrench or an electric wrench or a pneumatic wrench.

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