Steering gear damping device for electric loader and loader

Abstract

The utility model provides a steering gear damping device for an electric loader and the loader, and belongs to the technical field of loader damping, the steering gear damping device comprises a base, the base is of a rectangular structure, and damper holes are formed in the four corners of the base; the shock absorber holes are distributed in a rectangular shape; a shock pad group is fixed in each shock absorber hole through a shock absorption bolt; four fixing holes distributed in a rectangular shape are formed in the middle of the base; the fixing holes are used for fixing steering gears; and a set distance exists between the fixing hole and the shock absorber hole. When the shock absorber holes are formed, the shock absorber holes are kept away from the position over the steering gear, the four shock absorber holes are formed in the positions, away from the center, of the periphery of the base, and the shock pad sets are fixed to the base through the bolts and the steel sleeves, so that shock absorbers can be farther away from the seismic source steering gear, and transmitted shock is weakened by the base through the shock pad sets far away from each other; the rubber is not prone to fatigue deformation, the damping effect is better, damping can be more sufficient, and the driving comfort is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of loader shock absorption, in particular to a steering gear shock absorption device for an electric loader and the loader. Background Art

[0002] The statements in this section merely provide background technical information related to the present invention and do not necessarily constitute prior art.

[0003] Compared to fuel loaders, electric loaders offer significant improvements in quietness and comfort, especially in the cab, where noise levels are much lower. However, the steering system of an electric loader is hydraulic, with the steering wheel transmitting rotation through the steering column to the steering gear. The steering gear is typically directly connected to the cab floor or steering column, generating significant fluid noise and vibration during steering. This vibration is transmitted to the cab floor and steering wheel, significantly impacting comfort in electric loaders.

[0004] Patent announcement number CN 217515216 U discloses a loader steering wheel shock-absorbing connection structure. The rubber sleeve and rubber shock-absorbing pad can isolate the contact between the step bolt and the steering gear fixing plate, so that there is no direct contact between the steering gear and the steering gear. However, the patent shows that the steering gear is directly installed on the steering gear fixing plate of the steering gear. The shock-absorbing rubber pad is coaxial with the four fixing holes of the steering gear. On the one hand, the spacing between the four fixing holes of the steering gear is small, resulting in the shock-absorbing rubber pad being too close to the vibration source. When the vibration is transmitted to the shock-absorbing rubber pad, the intensity is high and the rubber compression is large, resulting in poor shock absorption effect and easy fatigue deformation of the rubber. On the other hand, this shock absorption is only applicable to the steering gear directly installed on the steering gear, and is not applicable to the steering gear where the steering gear is not directly installed. Utility Model Content

[0005] The utility model aims to provide a steering gear shock absorbing device for an electric loader, so as to solve the shock absorbing problems in the prior art, such as poor shock absorbing effect, easy fatigue deformation of rubber and shock absorbing when the device is directly mounted on the bottom plate of the cab.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A first aspect of the utility model provides a steering gear shock absorbing device for an electric loader, comprising a base, the base being a rectangular structure with shock absorber holes provided at its four corners;

[0008] The shock absorber holes are distributed in a rectangular shape;

[0009] Each of the shock absorber holes is fixed with a set of shock absorbing pads via shock absorbing bolts;

[0010] Four fixing holes distributed in a rectangular shape are provided in the middle of the base;

[0011] The fixing hole is used to fix the steering gear;

[0012] The fixing hole is at a set distance from the shock absorber hole.

[0013] Furthermore, each of the shock-absorbing pad groups includes a first shock-absorbing pad, a second shock-absorbing pad and a supporting pad;

[0014] The first shock-absorbing pad is closely attached to a side of the base away from the steering gear;

[0015] The second shock-absorbing pad is closely attached to the other side of the base;

[0016] The support pad is in close contact with the side of the second shock-absorbing pad away from the base 1 .

[0017] Furthermore, the first shock-absorbing pad and the second shock-absorbing pad have the same structure, both being convex shock-absorbing pads;

[0018] The shock-absorbing pad includes a base and a raised portion, and the base and the raised portion are an integrated structure;

[0019] The diameter of the base portion is larger than the diameter of the raised portion.

[0020] Furthermore, the base cannot enter the shock absorber hole;

[0021] The protrusion is used to insert into the shock absorber hole, specifically:

[0022] The raised portions of the first shock-absorbing pad and the second shock-absorbing pad are arranged opposite to each other and inserted into the shock absorber hole.

[0023] Furthermore, there is a certain distance between the protrusions of the first shock-absorbing pad and the second shock-absorbing pad.

[0024] Furthermore, the supporting gasket is a circular ring gasket with a certain thickness, the middle of which can accommodate the shock-absorbing bolt to pass through.

[0025] Furthermore, the shock-absorbing bolt is also sleeved with a steel sleeve.

[0026] Furthermore, the steel sleeve is cylindrical with a hollow center.

[0027] Furthermore, the steel sleeve cannot pass through the supporting gasket.

[0028] A second aspect of the present invention provides a loader, which adopts the steering gear shock absorbing device as described in the first aspect.

[0029] The technical solution of this utility model has the following beneficial effects:

[0030] The utility model is provided with a base, the steering gear is rigidly fixed on the base, and shock-absorbing pads are provided at the four corners of the base. The spacing between the shock-absorbing pads is much larger than the spacing between the four fixing holes of the steering gear. The deceleration pads designed in this way are not easy to fatigue and deform, the shock-absorbing effect is better, the shock absorption can be more fully achieved, and the driving comfort is improved.

[0031] Advantages of additional aspects of the present invention will be partially given in the following description, and partially become apparent from the following description, or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0033] Figure 1 It is the overall front view of the utility model.

[0034] Figure 2 It is an overall top view of the utility model.

[0035] Figure 3 This is a schematic cross-sectional diagram of the installation of the shock-absorbing pad assembly of the utility model.

[0036] Figure 4 This is a schematic diagram of the base of the utility model.

[0037] Figure 5 This is a schematic diagram of the shock-absorbing pad of the utility model.

[0038] Markings in the figure: 1. Base; 2. Steering gear; 3. Shock-absorbing bolt; 4. Shock-absorbing pad assembly; 41. First shock-absorbing pad; 42. Second shock-absorbing pad; 43. Support gasket; 5. Steel sleeve; 6. Fixing hole; 7. Through hole; 8. Fixing bolt; 9. Shock absorber hole; 10. Base; 11. Protrusion. DETAILED DESCRIPTION

[0039] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0040] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention.

[0041] In the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0042] Example 1

[0043] like Figure 1-4 As shown, this embodiment discloses a steering gear shock absorbing device for an electric loader; comprising: a base, such as Figure 4 As shown, the base has a rectangular structure with shock absorber holes at its four corners; the shock absorber holes are distributed in a rectangular shape; each shock absorber hole is fixed with a set of shock-absorbing pads by shock-absorbing bolts; four fixing holes are distributed in a rectangular shape in the middle of the base; the fixing holes are used to fix the steering gear; the fixing holes are at a set distance from the shock absorber holes.

[0044] In some embodiments, as Figure 1 and Figure 2 As shown, the steering gear 2 is fixed to the base 1 via fixing bolts 8 .

[0045] In some embodiments, as Figure 3 As shown, each shock absorber hole 9 is fixed with a set of shock-absorbing pads 4 by a shock-absorbing bolt 3; specifically:

[0046] Each shock-absorbing pad set 4 includes two identical shock-absorbing pads 42 and a support pad 43. The two shock-absorbing pads are a first shock-absorbing pad 41 and a second shock-absorbing pad 42. The first shock-absorbing pad 41 is closely attached to the side of the base 1 away from the steering gear 2, the second shock-absorbing pad 42 is closely attached to the other side of the base 1, and the support pad 43 is closely attached to the side of the second shock-absorbing pad 42 away from the base 1.

[0047] In some embodiments, as Figure 3 As shown, a steel sleeve 5 is provided on the outer cover of the shock-absorbing bolt 3. The steel sleeve 5 is a hollow cylinder with smooth inner and outer walls and no threads. A first shock-absorbing pad 41 and a second shock-absorbing pad 42 are sandwiched between the steel sleeve 5 and the shock-absorbing hole 9.

[0048] In some embodiments, as Figure 5 As shown, the first shock-absorbing pad and the second shock-absorbing pad have the same structure, both of which are "convex" shock-absorbing pads, including a base 10 and a raised portion 11. The base 10 and the raised portion 11 are an integrated structure. The diameter of the base 10 is greater than the diameter of the raised portion 11 by a set distance. The raised portions 11 of the first shock-absorbing pad and the second shock-absorbing pad are arranged opposite to each other; the base 10 cannot enter the shock absorber hole 9, and the raised portion 11 can be inserted into the shock absorber hole 9 to separate the rigid contact between the steel sleeve 5 and the shock absorber hole 9 and eliminate the transmission of vibration.

[0049] There is a certain distance between the raised portions 11 of the first shock-absorbing pad and the second shock-absorbing pad to ensure that there is sufficient deformation space when the raised portions 11 of the two shock-absorbing pads are compressed and deformed.

[0050] The first shock-absorbing pad 41 and the second shock-absorbing pad 42 are in transitional cooperation with the steel sleeve 5; the through hole formed axially between the first shock-absorbing pad and the second shock-absorbing pad can accommodate the steel sleeve 5 to pass through;

[0051] In some embodiments, the support gasket is an annular gasket with a certain thickness, which can accommodate the shock-absorbing bolt through the middle, but the through hole of the support gasket 43 is smaller than the diameter of the steel sleeve 5, and the steel sleeve cannot pass through the support gasket 43. The function of the support gasket 43 is to separate the steel sleeve 5 from the shock-absorbing bolt to avoid rigid contact between the two and eliminate the transmission of vibration.

[0052] The shock-absorbing bolts pass through the support pad 43, the second shock-absorbing pad 42, the steel sleeve 5, the shock absorber hole 9 of the base 1 and the first shock-absorbing pad 41 in sequence, and are then fixed on the plane of the cab floor. After tightening the shock-absorbing bolts, one end of the steel sleeve 5 is pressed against the cab floor, and the other end is pressed against the support pad 43, and the first and second shock-absorbing pads are compressed and clamp the base 1.

[0053] It should be noted that when setting the shock absorber hole 9, it is necessary to avoid the area directly above the steering gear 2. When the shock absorber bolt 3 and the support gasket 43 are subsequently inserted, the shock absorber bolt 3 and the support gasket 43 as a whole can avoid the entire steering gear 2 and do not contact the steering gear 2. The shock absorber bolt 3 is not used to fix the steering gear 2 and the base 1. This setting can make the shock absorber farther away from the vibration source, the steering gear 2. The vibration of the steering gear causes the base 1 to vibrate, and the base 1 then weakens the transmitted vibration through the various shock absorber pad groups that are far apart. The spacing between the shock absorber pad groups is much larger than the spacing between the four fixing holes of the steering gear. The size of the shock absorber pad can be designed to be larger, so that the deceleration pad is not easy to fatigue and deform, the shock absorption effect is better, and it can more fully absorb shock, thereby improving driving comfort.

[0054] In some embodiments, the shock-absorbing pad assembly 4 can be made of rubber. When uncompressed, the first shock-absorbing pad 41, the second shock-absorbing pad 42, and the support washer 43 are positioned a set distance above the steel sleeve 5. When the shock-absorbing bolt 3 is tightened, the support washer 43 compresses the second shock-absorbing pad 42 and the first shock-absorbing pad 41 to a certain extent. The steel sleeve 5 is then clamped between the shock-absorbing bolt and the cab floor. The support provided by the steel sleeve 5 prevents the two shock-absorbing pads from being further compressed, allowing the shock-absorbing bolt 3 to be tightened. Supported by the steel sleeve 5, the two shock-absorbing pads can be compressed upward and downward and exhibit elasticity.

[0055] A circular through hole 7 is also provided in the middle of the base 1 to accommodate the outer spline at the lower end of the steering column to pass through the floor 1 and engage with the inner spline structure of the steering gear 2 to achieve the steering function.

[0056] When the utility model is working:

[0057] When the loader turns, the steering gear 2 vibrates, which will cause the base 1 to vibrate. The shock-absorbing pads 4 at the four corners of the base 1 will weaken the vibration, thereby achieving the effect of reducing the vibration and preventing the vibration from being transmitted to the bottom plate and steering wheel, thereby improving the driving experience.

[0058] Example 2

[0059] This embodiment provides a loader that uses the steering gear shock absorbing device described in Example 1 for shock absorption.

[0060] Although the above description of the specific implementation methods of the present invention is combined with the accompanying drawings, it does not limit the scope of protection of the present invention. Technical personnel in the relevant field should understand that on the basis of the technical solution of the present invention, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the present invention.

Claims

1. A steering gear damping device for an electric loader, characterized in that The base comprises a rectangular structure with shock absorber holes provided at its four corners; The shock absorber holes are distributed in a rectangular shape; Each of the shock absorber holes is fixed with a set of shock absorbing pads via shock absorbing bolts; Four fixing holes distributed in a rectangular shape are provided in the middle of the base; The fixing hole is used to fix the steering gear; The fixing hole is at a set distance from the shock absorber hole.

2. A steering gear damping device for an electric loader according to claim 1, characterized in that: Each of the shock-absorbing pad groups includes a first shock-absorbing pad, a second shock-absorbing pad and a supporting pad; The first shock-absorbing pad is closely attached to a side of the base away from the steering gear; The second shock-absorbing pad is closely attached to the other side of the base; The supporting pad is in close contact with a side of the second shock-absorbing pad that is away from the base (1).

3. A steering gear damping device for an electric loader according to claim 2, characterized in that: The first shock-absorbing pad and the second shock-absorbing pad have the same structure, both being "convex" shock-absorbing pads; The shock-absorbing pad includes a base and a raised portion, and the base and the raised portion are an integrated structure; The diameter of the base portion is larger than the diameter of the raised portion.

4. A steering gear damping device for an electric loader according to claim 3, characterized in that: The base cannot enter the shock absorber hole; The protrusion is used to insert into the shock absorber hole, specifically: The raised portions of the first shock-absorbing pad and the second shock-absorbing pad are arranged opposite to each other and inserted into the shock absorber hole.

5. A steering gear damping device for an electric loader according to claim 4, characterized in that: There is a certain distance between the protrusions of the first shock-absorbing pad and the second shock-absorbing pad.

6. A steering gear damping device for an electric loader according to claim 2, characterized in that: The supporting gasket is a circular ring gasket with a certain thickness, and the middle thereof can accommodate the shock-absorbing bolt to pass through.

7. A steering gear damping device for an electric loader according to claim 6, characterized in that: The shock-absorbing bolt is also sleeved with a steel sleeve.

8. A steering gear damping device for an electric loader according to claim 7, characterized in that: The steel sleeve is in the shape of a cylinder with a hollow center.

9. The steering gear damping device for an electric loader according to claim 7, wherein: The steel sleeve cannot pass through the support washer.

10. An electric loader, characterized in that: The electric loader steering gear shock absorbing device according to any one of claims 1 to 9 is used for shock absorption.

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