Forklift vibration reduction control system and forklift

Abstract

The utility model discloses a forklift vibration reduction control system and a forklift, the forklift vibration reduction control system comprises a steering gear column support and a frame cross beam plate, a connecting device is arranged between the steering gear column support and the frame cross beam plate, and the steering gear column support and the frame cross beam plate are detachably and fixedly connected through the connecting device; a damping device is further arranged between the steering column support and the frame cross beam plate, and the damping device at least absorbs vibration transmitted from the frame cross beam plate for the steering column support. According to the forklift damping control system, the steering column support and the frame cross beam plate are connected through the connecting device, direct contact and fixed connection of the steering column support and the frame cross beam plate are avoided, and meanwhile the damping device arranged between the steering column support and the frame cross beam plate is used in a combined mode. The vibration of the steering column support and / or the frame cross beam plate is buffered and absorbed, and the vibration of the steering column support is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of forklifts, in particular to a forklift shock-absorbing control system and a forklift. Background Art

[0002] In existing forklifts, most of the forklift steering column brackets and the frame crossbeam plates are fixedly connected by direct welding, resulting in the vibration of the forklift power assembly being directly transmitted from the frame crossbeam plate to the steering column bracket, and then continuing to be transmitted to the steering column, steering wheel, etc., resulting in a large vibration amplitude and high vibration frequency of the steering wheel, which has an adverse impact on the driving comfort of the driver. To solve this problem, the prior art has proposed to use a steering column and bracket with a universal joint. Through the flexible connection of the universal joint, the vibration transmitted to the steering wheel is reduced. The above means using a universal joint can reduce the vibration transmitted from the forklift low-power assembly to the steering wheel to a certain extent, but the steering column bracket and the frame crossbeam plate are still in direct contact connection, and it is still impossible to avoid the vibration of the forklift power assembly being directly transmitted from the frame crossbeam plate to the steering column bracket and the steering column. Moreover, the universal joint mechanism has disadvantages such as low transmission efficiency, high cost, and poor maintainability. Summary of the Utility Model

[0003] To overcome at least one of the above-mentioned defects of the prior art, one of the purposes of the present utility model is to provide a forklift shock-absorbing control system. By using a connecting device, the connection between the steering column bracket and the frame crossbeam plate is realized, avoiding the direct contact and fixed connection between the steering column bracket and the frame crossbeam plate. At the same time, in combination with the use of a shock-absorbing device arranged between the steering column bracket and the frame crossbeam plate, the vibration of the steering column bracket and / or the frame crossbeam plate is buffered and absorbed, and the vibration of the steering column bracket is reduced.

[0004] To overcome at least one of the above-mentioned defects of the prior art, the second purpose of the present utility model is to provide a forklift. This forklift applies the aforementioned forklift shock-absorbing control system, making the steering wheel of the forklift vibrate less and improving the driving experience.

[0005] The technical solution adopted by the present utility model to solve its problems is as follows:

[0006] A forklift shock-absorbing control system: including a steering column bracket and a frame crossbeam plate, a connecting device is arranged between the steering column bracket and the frame crossbeam plate, and the steering column bracket and the frame crossbeam plate are detachably and fixedly connected through the connecting device;

[0007] A shock-absorbing device is further arranged between the steering column bracket and the frame crossbeam plate, and the shock-absorbing device absorbs at least the vibration transmitted from the frame crossbeam plate to the steering column bracket.

[0008] Further: The connecting device includes a connecting bolt, a first connecting hole provided on the frame crossbeam plate, and a second connecting hole provided on the steering column bracket;

[0009] The connecting bolt passes through the first connecting hole and the second connecting hole, and a locking nut is threadedly connected to the connecting bolt;

[0010] The damping device is fixedly provided between the steering column bracket and the frame crossbeam plate, and the damping device at least absorbs vibrations of the steering column bracket and / or the frame crossbeam plate along the axial direction of the connecting bolt.

[0011] Further: The first connecting hole, the second connecting hole, and the connecting bolt each include at least two.

[0012] Further: The damping device is sleeved on the connecting bolt, and the damping device at least absorbs vibrations of the steering column bracket and / or the frame crossbeam plate along the axial direction of the connecting bolt.

[0013] Further: The damping device at least includes a damping pad. A connecting hole is provided on the damping pad. The damping pad is fixedly sleeved on the connecting bolt through the connecting hole, and both the frame crossbeam plate and the steering column bracket abut against the damping pad.

[0014] Further: The damping pad includes a first buffer column body and a second buffer column body integrally connected. The second buffer column body is connected to one end of the first buffer column body, and the connecting hole passes through the first buffer column body and the second buffer column body;

[0015] The outer diameter of the second buffer column body is smaller than the outer diameter of the first buffer column body, and the outer diameter of the second buffer column body is adapted to the aperture of the second connecting hole;

[0016] The second buffer column body passes through the second connecting hole. The steering column bracket abuts against the end face of the first buffer column body facing the second buffer column body, and the frame crossbeam plate abuts against the end face of the first buffer column body away from the second buffer column body.

[0017] Further: The damping device includes two relatively arranged damping pads, and the two first buffer column bodies are respectively located on both sides of the steering column bracket.

[0018] Further: An anti-roll device is also connected to the steering column bracket; The anti-roll device includes at least two, and is respectively arranged on both sides of the virtual connection line of the two second connecting holes.

[0019] Further: The anti-roll device includes an anti-roll bolt fixedly connected to the frame crossbeam plate. The anti-roll bolt passes through the frame crossbeam plate and one end abuts against the side of the steering column bracket facing the frame crossbeam plate.

[0020] A forklift includes the aforementioned forklift shock-absorbing control system. A steering column is fixedly connected to the steering column bracket, and a steering wheel is fixedly connected to the steering column.

[0021] In summary, a forklift shock-absorbing control system provided by the present utility model has the following technical effects:

[0022] 1. By adopting the connecting device, the connection between the steering column bracket and the frame crossbeam plate is realized, avoiding the direct contact and fixed connection between the steering column bracket and the frame crossbeam plate, which can reduce the vibration on part of the frame crossbeam plate to the steering column bracket and reduce the vibration received by the steering column bracket.

[0023] 2. By adopting the shock-absorbing device, the vibration transmitted from the frame crossbeam plate is absorbed and buffered, further reducing the vibration on part of the frame crossbeam plate to the steering column bracket and reducing the vibration received by the steering column bracket.

[0024] 3. By adopting the connecting device, the connection between the steering column bracket and the frame crossbeam plate is realized, avoiding the direct contact and fixed connection between the steering column bracket and the frame crossbeam plate. At the same time, combined with the use of the shock-absorbing device arranged between the steering column bracket and the frame crossbeam plate, the vibration of the steering column bracket and / or the frame crossbeam plate is buffered and absorbed, further reducing the vibration of the steering column bracket and improving the comfort of forklift driving.

[0025] In summary, a forklift provided by the present utility model has the following technical effects:

[0026] This forklift applies the aforementioned forklift shock-absorbing control system, making the steering wheel of the forklift vibrate less and improving the driving experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic structural diagram of an embodiment of a forklift shock-absorbing control system of the present utility model.

[0028] Figure 2 It is Figure 1 The sectional view taken along the line A-A in

[0029] Figure 3 It is a schematic structural diagram of the steering column bracket.

[0030] Figure 4 It is a schematic structural diagram of an embodiment of the shock pad.

[0031] Among them, the meanings of the reference numerals are as follows:

[0032] 1. Frame crossbeam plate; 2. Anti-roll bolt; 3. Connecting bolt; 4. Shock-absorbing pad; 41. First buffer cylinder; 42. Second buffer cylinder; 43. Connecting hole; 5. Locking nut; 6. Washer; 7. Steering column bracket; 8. Steering wheel; 9. Steering column; 10. Second connecting hole; 11. First connecting hole. Detailed implementation mode

[0033] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0034] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0036] Refer to Figure 1 and Figure 2 The present invention discloses a forklift shock-absorbing control system.

[0037] A forklift shock-absorbing control system includes a steering column bracket 7 and a frame crossbeam plate 1. A connecting device is provided between the steering column bracket 7 and the frame crossbeam plate 1, and the steering column bracket 7 and the frame crossbeam plate 1 are detachably and fixedly connected through the connecting device.

[0038] A shock-absorbing device is further provided between the steering column bracket 7 and the frame crossbeam plate 1, and the shock-absorbing device at least absorbs the vibration transmitted from the frame crossbeam plate 1 to the steering column bracket 7.

[0039] Based on the above technical solutions, by setting the connecting device, the direct contact connection method between the steering column bracket 7 and the frame crossbeam plate 1 is changed, and the vibration directly transmitted from the frame crossbeam plate 1 to the steering column bracket 7 is reduced.

[0040] Based on the above solution, by providing a vibration damping device between the steering column bracket 7 and the vehicle frame crossbeam plate 1, the vibration damping device at least absorbs the vibration on the vehicle frame crossbeam plate 1 and reduces the vibration transmitted from the vehicle frame crossbeam plate 1 to the steering column bracket 7.

[0041] In the above solution, by using a connecting device, the connection between the steering column bracket 7 and the vehicle frame crossbeam plate 1 is realized, avoiding direct contact and fixed connection between the steering column bracket 7 and the vehicle frame crossbeam plate 1. At the same time, combined with the use of the vibration damping device provided between the steering column bracket 7 and the vehicle frame crossbeam plate 1, the vibration of the steering column bracket 7 and / or the vehicle frame crossbeam plate 1 is buffered and absorbed, reducing the vibration of the steering column bracket 7.

[0042] In the above solution, the vibration damping device can not only absorb the vibration on the vehicle frame crossbeam plate 1, but also absorb the vibration on the steering column bracket 7, and can achieve two-way vibration damping.

[0043] In the above solution, through the connecting device, the vibration transmitted from the vehicle frame crossbeam plate 1 to the steering column bracket 7 is reduced. By providing a vibration damping device, the vibration of the steering column bracket 7 and the vehicle frame crossbeam plate 1 is buffered and absorbed.

[0044] In this technical solution, the connecting device includes a connecting bolt 3, a first connecting hole 11 provided on the vehicle frame crossbeam plate 1, and a second connecting hole 10 provided on the steering column bracket 7.

[0045] The connecting bolt 3 passes through the first connecting hole 11 and the second connecting hole 10, and a locking nut 5 is threadedly connected to the connecting bolt 3.

[0046] The vibration damping device is fixedly provided between the steering column bracket 7 and the vehicle frame crossbeam plate 1, and the vibration damping device at least absorbs the vibration of the steering column bracket 7 and / or the vehicle frame crossbeam plate 1 along the axial direction of the connecting bolt 3.

[0047] In the above solution, the connecting device realizes the fixed connection between the steering column bracket 7 and the vehicle frame crossbeam plate 1. Generally, the connecting bolt 3 passes through the first connecting hole 11 and the second connecting hole 10 in sequence, and then the locking nut 5 locks the steering column bracket 7 and the vehicle frame crossbeam plate 1 together; or the connecting bolt 3 passes through the second connecting hole 10 and the first connecting hole 11 in sequence, and then the locking nut 5 locks the steering column bracket 7 and the vehicle frame crossbeam plate 1 together.

[0048] The shock absorption device is fixedly installed between the steering column bracket 7 and the frame crossbeam plate 1. When the steering column bracket 7 and / or the frame crossbeam plate 1 move along the axis direction of the connecting bolt 3 due to vibration, the shock absorption device can buffer the movement of the steering column bracket 7 and / or the frame crossbeam plate 1, that is, the shock absorption device is fixedly installed between the steering column bracket 7 and the frame crossbeam plate 1, and the shock absorption device at least absorbs the vibration of the steering column bracket 7 and / or the frame crossbeam plate 1 along the axis direction of the connecting bolt 3.

[0049] In this solution, a washer 6 is also sleeved on the connecting bolt 3. The washer 6 realizes the isolation between the lock nut 5 and the steering column bracket 7 and / or the frame crossbeam plate 1, and further reduces the vibration and wear between the connecting bolt 3 and the steering column bracket 7 and / or the frame crossbeam plate 1.

[0050] In this technical solution, the first connection hole 11, the second connection hole 10 and the connecting bolt 3 all include at least two, ensuring that the connection device realizes the reliable connection between the steering column bracket 7 and the frame crossbeam plate 1, avoiding the deviation of the steering column bracket 7 due to vibration, and at the same time can also further reduce the vibration of the steering column bracket 7.

[0051] In this technical solution, the shock absorption device is sleeved on the connecting bolt 3, and the shock absorption device at least absorbs the vibration of the steering column bracket 7 and / or the frame crossbeam plate 1 along the axis direction of the connecting bolt 3.

[0052] In the above solution, the shock absorption device is sleeved on the connecting bolt 3, and the installation of the shock absorption device is realized through the connecting bolt 3, ensuring that the shock absorption device is kept between the steering column bracket 7 and the frame crossbeam plate 1, realizing the buffering and absorption of the vibration of the steering column bracket 7, and at the same time can also buffer and absorb the vibration of the frame crossbeam plate 1. The shock absorption device can at least buffer and absorb the vibration of the steering column bracket 7 and / or the frame crossbeam plate 1 along the axis direction of the connecting bolt 3.

[0053] In this technical solution, the shock absorption device at least includes a shock absorption pad 4. A connection hole 43 is provided on the shock absorption pad 4. The shock absorption pad 4 is fixedly sleeved on the connecting bolt 3 through the connection hole 43, and both the frame crossbeam plate 1 and the steering column bracket 7 abut against the shock absorption pad 4.

[0054] Through the connection hole 43, the shock absorption pad 4 is sleeved on the connecting bolt 3 to realize the installation of the shock absorption pad 4. The installation of the shock absorption pad 4 is convenient and fast, the operation is simple, and at the same time it is also beneficial to simplify the structure of the shock absorption pad 4 and improve the shock absorption ability of the shock absorption pad 4. The shock absorption pad 4 is sleeved on the connecting bolt 3, and both the frame crossbeam plate 1 and the steering column bracket 7 abut against the shock absorption pad 4, so the shock absorption pad 4 can at least realize the shock absorption of the steering column bracket 7 and / or the frame crossbeam plate 1 along the axis direction of the connecting bolt 3.

[0055] In this technical solution, the vibration damping pad 4 includes a first buffer cylinder 41 and a second buffer cylinder 42 which are integrally connected. The second buffer cylinder 42 is connected to one end of the first buffer cylinder 41, and the connection hole 43 passes through the first buffer cylinder 41 and the second buffer cylinder 42. When the vibration damping pad 4 is connected to the connection bolt 3, the vibration damping pad 4 is sleeved on the connection bolt 3 through the connection hole 43.

[0056] The vibration damping pad 4 includes a first buffer cylinder 41 and a second buffer cylinder 42 which are integrally connected. Generally, the first buffer cylinder 41 and the second buffer cylinder 42 are integrally formed by rubber or silica gel or plastic of flexible material, etc., to obtain the vibration damping pad 4 with an integral structure. The first buffer cylinder 41 and the second buffer cylinder 42 are installed and used simultaneously, and are inseparable and non-detachable.

[0057] The outer diameter of the second buffer cylinder 42 is smaller than the outer diameter of the first buffer cylinder 41, and the outer diameter of the second buffer cylinder 42 is adapted to the aperture of the second connection hole 10. It is convenient for the steering column bracket 7 to be connected to the second buffer cylinder 42, and it is convenient for the second buffer cylinder 42 to absorb the vibration on the steering column bracket 7.

[0058] The second buffer cylinder 42 passes through the second connection hole 10, the steering column bracket 7 abuts against the end face of the first buffer cylinder 41 facing the second buffer cylinder 42, and the vehicle frame cross beam plate 1 abuts against the end face of the first buffer cylinder 41 away from the second buffer cylinder 42.

[0059] Generally, the inner diameter of the connection hole 43 should be slightly larger than the inner diameter of the connection bolt 3. On the one hand, it is convenient for the vibration damping pad 4 to be sleeved on the connection bolt 3. On the other hand, when the vibration damping pad 4 deforms due to absorbing vibration, there is enough deformation space between the vibration damping pad 4 and the connection bolt 3, avoiding the connection bolt 3 from hindering the deformation of the vibration damping pad 4 and avoiding problems such as the rupture of the connection vibration damping pad 4.

[0060] Based on the above solution, due to the setting of the second buffer cylinder 42, and the steering column bracket 7 is sleeved on the second buffer cylinder 42 through the second connection hole 10, the second buffer cylinder 42 can absorb the vibration of the steering column bracket 7 along the radial direction of the connection bolt 3.

[0061] The outer diameter of the first buffer cylinder 41 is greater than the outer diameter of the second buffer cylinder 42, and the steering column bracket 7 and the vehicle frame cross beam plate 1 respectively abut against the two end faces of the first buffer cylinder 41, so that the first buffer cylinder 41 buffers the vibration of the steering column bracket 7 and / or the vehicle frame cross beam plate 1.

[0062] That is, the shock-absorbing pad 4 includes the structural design of the first buffer column 41 and the second buffer column 42, which can not only absorb the vibration of the steering column bracket 7 and / or the frame crossbeam plate 1 along the axial direction of the connecting bolt 3, but also absorb the vibration of the steering column bracket 7 along the radial direction of the connecting bolt 3, further realizing the absorption of the vibration of the steering column bracket 7 and reducing the steering column bracket 7.

[0063] In this technical solution: the shock-absorbing device includes two relatively arranged shock-absorbing pads 4, and the two first buffer columns 41 are respectively located on both sides of the steering column bracket 7. As Figure 2 shown, the two shock-absorbing pads 4 are symmetrically arranged. The two first buffer columns 41 of the two shock-absorbing pads 4 are respectively located on both sides of the steering column bracket 7, and the two second buffer columns 42 are both located in the second connection hole 10 of the steering column bracket 7, further improving the absorption of the vibration of the steering column bracket 7. Through the two relatively arranged shock-absorbing pads 4, the vibration of the steering column bracket 7 is further reduced.

[0064] In this technical solution, an anti-tilting device is also connected to the steering column bracket 7. The anti-tilting device includes at least two, and are respectively arranged on both sides of the virtual connection line of the two second connection holes 10. By setting the anti-tilting device, the balance, stability and smoothness of the steering column bracket 7 are maintained, and problems such as tilting or offset of the steering column bracket 7 during use are avoided.

[0065] In the above solution, through the two connecting bolts 3 combined with the two anti-tilting devices, the stable fixation of the steering column bracket 7 is realized. The two connecting bolts 3 realize the fixed connection of the steering column bracket 7, and with the assistance of the two anti-tilting devices, the smoothness of the steering column bracket 7 in the direction perpendicular to the virtual connection line of the two second connection holes 10 is ensured.

[0066] In this technical solution, the anti-tilting device includes an anti-tilting bolt 2 fixedly connected to the frame crossbeam plate 1. The anti-tilting bolt 2 passes through the frame crossbeam plate 1 and one end abuts against the side of the steering column bracket 7 facing the frame crossbeam plate 1.

[0067] The anti-tilting device has a simple structure, is convenient for installation and use, has a low cost, is easy to repair and replace, and only the anti-tilting bolt 2 abuts against the steering column bracket 7, avoiding the problem of over-positioning of the installation and connection of the steering column bracket 7.

[0068] In this solution, a forklift is also proposed. This forklift includes the aforementioned forklift shock-absorbing control system. A steering column 9 is fixedly connected to the steering column bracket 7, and a steering wheel 8 is fixedly connected to the steering column 9. By applying the forklift shock-absorbing control system, the vibration of the steering wheel 8 of the forklift is small, improving the driving experience.

[0069] The technical means disclosed in the solution of the present utility model are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present utility model.

Claims

1. A forklift shock-absorbing control system, characterized in that: It includes a steering column bracket and a frame crossbeam plate. A connecting device is provided between the steering column bracket and the frame crossbeam plate, and the steering column bracket and the frame crossbeam plate are detachably and fixedly connected through the connecting device. A damping device is further provided between the steering column bracket and the frame crossbeam plate, and the damping device at least absorbs vibrations transmitted from the frame crossbeam plate for the steering column bracket.

2. The forklift shock-absorbing control system according to claim 1, characterized in that: The connecting device includes a connecting bolt, a first connecting hole provided on the frame crossbeam plate, and a second connecting hole provided on the steering column bracket. The connecting bolt passes through the first connecting hole and the second connecting hole, and a locking nut is threadedly connected to the connecting bolt. The damping device is fixedly provided between the steering column bracket and the frame crossbeam plate, and the damping device at least absorbs vibrations of the steering column bracket and / or the frame crossbeam plate along the axial direction of the connecting bolt.

3. The forklift shock-absorbing control system according to claim 2, wherein: There are at least two of the first connecting hole, the second connecting hole, and the connecting bolt.

4. The forklift vibration damping control system according to claim 2, wherein: The damping device is sleeved on the connecting bolt, and the damping device at least absorbs vibrations of the steering column bracket and / or the frame crossbeam plate along the axial direction of the connecting bolt.

5. The forklift shock-absorbing control system according to claim 4, characterized in that: The damping device at least includes a damping pad. A connecting hole is provided on the damping pad, and the damping pad is fixedly sleeved on the connecting bolt through the connecting hole. Both the frame crossbeam plate and the steering column bracket abut against the damping pad.

6. The forklift shock-absorbing control system according to claim 5, characterized in that: The damping pad includes a first buffer cylinder body and a second buffer cylinder body which are integrally connected. The second buffer cylinder body is connected to one end of the first buffer cylinder body, and the connecting hole passes through the first buffer cylinder body and the second buffer cylinder body. The outer diameter of the second buffer cylinder body is smaller than the outer diameter of the first buffer cylinder body, and the outer diameter of the second buffer cylinder body is adapted to the aperture of the second connecting hole. The second buffer cylinder body passes through the second connecting hole. The steering column bracket abuts against the end face of the first buffer cylinder body facing the second buffer cylinder body, and the frame crossbeam plate abuts against the end face of the first buffer cylinder body away from the second buffer cylinder body.

7. The forklift shock-absorbing control system according to claim 6, characterized in that: The damping device includes two relatively arranged damping pads, and the two first buffer cylinder bodies are respectively located on both sides of the steering column bracket.

8. The forklift shock-absorbing control system according to claim 3, characterized in that: An anti-roll device is further connected to the steering column bracket; there are at least two anti-roll devices, and they are respectively arranged on both sides of the virtual connection line of the two second connecting holes.

9. The forklift shock-absorbing control system according to claim 8, wherein: The anti-roll device includes an anti-roll bolt fixedly connected to the frame crossbeam plate. The anti-roll bolt passes through the frame crossbeam plate and one end abuts against the side face of the steering column bracket facing the frame crossbeam plate.

10. A forklift, characterized in that, It includes the forklift damping control system according to any one of the preceding claims 1 to 9. A steering column is fixedly connected to the steering column bracket, and a steering wheel is fixedly connected to the steering column.

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