Cab front suspension with spring damping function

Abstract

The utility model relates to a cab front suspension with a spring shock absorption function, which belongs to the technical field of cab suspensions and comprises two fixing parts, connecting parts are fixed at the tops of the fixing parts, fixing blocks are fixed at the tops of the connecting parts, transverse stabilizing rods are rotatably connected in the two fixing blocks, and the transverse stabilizing rods are fixed on the fixing parts. A turnover arm is hinged to the interior of the fixing block, a mounting part is fixed to the left side of the turnover arm, a buffering assembly in sliding connection with the turnover arm is fixed to the top of the fixing block, and a limiting assembly is arranged in the fixing block. According to the cab front suspension with the spring damping function, through the arranged limiting assembly, the up-down moving distance of the overturning arm can be effectively limited, too large up-down jumping of a cab is effectively prevented, the limited area can be adjusted by adjusting the limiting assembly, the limited range can be adjusted, and the practicability is high. And the service life of suspension parts of the cab can be effectively prevented from being shortened, so that the whole body is more durable.

Description

Technical Field

[0001] The utility model relates to the technical field of cab suspensions, in particular to a spring shock-absorbing cab front suspension. Background Art

[0002] The cab front suspension system supports the cab, cushions chassis impact and enables cab flipping in actual working conditions. It is expected that the driver can sit comfortably and reduce driving fatigue through its vibration reduction effect. The suspension mainly relies on air springs or steel spring shock absorbers to absorb the impact energy transmitted by the chassis, thereby achieving the purpose of cushioning the vibration transmitted by the chassis, and relies on stabilizer bars to achieve safe tilting of the cab during vehicle turning.

[0003] The front suspension can rely on the stabilizer bar to achieve safe roll of the cab during vehicle turning. However, many types of cab front suspensions only have a downward jump limit structure, or even no upward and downward jump limit mechanism. Excessive up and down jumps of the cab will reduce the life of the cab suspension components. Therefore, a spring shock-absorbing cab front suspension is proposed to solve the above problem. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a spring shock-absorbing cab front suspension, which has the advantages of high durability and solves the problem that excessive up and down bouncing of the cab will reduce the life of the cab suspension components.

[0005] To achieve the above object, the utility model provides the following technical solution: a spring shock-absorbing cab front suspension, comprising two fixing members, a connecting member is fixed on the top of the fixing member, a fixing block is fixed on the top of the connecting member, a lateral stabilizer bar is rotatably connected inside the two fixing blocks, and a flip arm is hinged inside the fixing block;

[0006] A mounting piece is fixed on the left side of the flip arm, a buffer assembly slidably connected to the flip arm is fixed on the top of the fixed block, the buffer assembly is used to buffer the generated vibration, and a limit assembly is arranged inside the fixed block, the limit assembly is used to limit the flipping distance of the flip arm;

[0007] The limit assembly includes a limit rod, a rotating rod, two pushing blocks, two limit blocks and a positioning block. The top of the fixed block is fixed to the limit rod, the inside of the limit rod is rotatably connected to the rotating rod, the rotating rod passes through the bottom of the fixed block, the outer surface of the rotating rod is threadedly connected to the pushing block, the pushing block passes through the outside of the limit rod, the pushing block is fixed to the limit block, and the positioning block is fixed to the flip arm.

[0008] Furthermore, the buffer assembly includes a buffer block, a buffer spring, a buffer rod and a hinge block, the buffer block is fixed to the fixed block, the interior of the buffer block is fixed to the buffer spring, the top of the buffer spring is fixed to the buffer rod, the buffer rod is hinged to the hinge block, and the hinge block is slidably connected to the flip arm.

[0009] Furthermore, sliding blocks are fixed to both the front and rear sides of the hinge block, and a sliding groove slidably connected to the sliding block is provided inside the flip arm.

[0010] Furthermore, a fixed bearing is fixed to the inner top wall of the limiting rod, and the interior of the fixed bearing is fixed to the rotating rod.

[0011] Furthermore, the rotating rod is a bidirectional threaded screw, and a threaded hole matching the bidirectional threaded screw is provided inside the pushing block.

[0012] Furthermore, a control block is fixed to the bottom of the rotating rod, and a friction strip is fixed to the outer surface of the control block.

[0013] Furthermore, sponge pads are fixed to both upper and lower sides of the positioning block, and a rubber pad is fixed to the side of the limit block facing the positioning block.

[0014] Furthermore, a weight-reducing hole is provided inside the flip arm, and the buffer spring is a high-strength steel spring.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] The spring shock-absorbing cab front suspension can effectively limit the up and down moving distance of the flip arm by setting a limit component, effectively preventing the cab from jumping up and down too much, and the restricted area can be adjusted by adjusting the limit component, so that the restricted range can be adjusted. The overall structure is simple, and the service life of the cab suspension components can be effectively prevented from decreasing, thereby making the whole more durable and effectively improving the overall practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a three-dimensional diagram of the structure of the buffer component of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the limit assembly of the utility model.

[0020] In the figure: 1 fixing part, 2 connecting part, 3 fixing block, 4 lateral stabilizer bar, 5 flip arm, 6 mounting part, 7 buffer assembly, 701 buffer block, 702 buffer spring, 703 buffer rod, 704 hinge block, 8 limit assembly, 801 limit rod, 802 rotating rod, 803 pushing block, 804 limit block, 805 positioning block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-2 A spring shock-absorbing cab front suspension in this embodiment includes two fixing members 1, a connecting member 2 is fixed on the top of the fixing member 1, a fixing block 3 is fixed on the top of the connecting member 2, a lateral stabilizer bar 4 is rotatably connected to the inside of the two fixing blocks 3, a flip arm 5 is hinged inside the fixing block 3, and a weight-reducing hole is opened inside the flip arm 5. The weight-reducing hole can effectively reduce the weight and manufacturing cost of the flip arm 5, thereby making the whole more practical.

[0023] In addition, a mounting member 6 is fixed to the left side of the flip arm 5, and the mounting member 6 is used to be fixed to the cab. A buffer assembly 7 slidably connected to the flip arm 5 is fixed to the top of the fixed block 3. The buffer assembly 7 includes a buffer block 701, a buffer spring 702, a buffer rod 703 and a hinge block 704. The buffer block 701 is fixed to the fixed block 3, and the inside of the buffer block 701 is fixed to the buffer spring 702. The buffer spring 702 is a high-strength steel spring. The buffer spring 702 can buffer the vibration received. The buffer spring The top of 702 is fixed to the buffer rod 703, the buffer rod 703 is hinged to the hinge block 704, the hinge block 704 is slidably connected to the flip arm 5, the hinge block 704 is set so that the buffer assembly 7 can remain fixed to the flip arm 5, the front and rear sides of the hinge block 704 are fixed with sliding blocks, the inside of the flip arm 5 is provided with a sliding groove slidably connected to the sliding block, the buffer assembly 7 is used to buffer the generated vibration, and the inside of the fixed block 3 is provided with a limit assembly 8, and the limit assembly 8 is used to limit the flipping distance of the flip arm 5.

[0024] In general, when the flip arm 5 flips along the hinge point with the fixed block 3, it will pull the hinge block 704 and the buffer rod 703, causing the buffer spring 702 to deform, thereby providing a certain buffer for the vibration, effectively ensuring the stability of the cab, and making the overall structure more practical.

[0025] See also Figure 3 In order to improve the overall durability, the limit assembly 8 in this embodiment includes a limit rod 801, a rotating rod 802, two pushing blocks 803, two limit blocks 804 and a positioning block 805. The top of the fixed block 3 is fixed to the limit rod 801, the interior of the limit rod 801 is rotatably connected to the rotating rod 802, a fixed bearing is fixed to the inner top wall of the limit rod 801, and the interior of the fixed bearing is fixed to the rotating rod 802. The set fixed bearing can effectively improve the rotation stability of the rotating rod 802. The rotating rod 802 passes through the bottom of the fixed block 3, and a control block is fixed to the bottom of the rotating rod 802. A friction strip is fixed to the outer surface of the control block. The rotation of the rotating rod 802 can also be controlled by setting a driving motor, which can effectively improve the convenience of adjustment.

[0026] The outer surface of the rotating rod 802 is threadedly connected to the pushing block 803. The rotating rod 802 is a bidirectional threaded screw. The interior of the pushing block 803 is provided with a threaded hole compatible with the bidirectional threaded screw. The pushing block 803 passes through the outside of the limiting rod 801. The pushing block 803 is fixed to the limiting block 804, and the positioning block 805 is fixed to the flip arm 5. Sponge pads are fixed on the upper and lower sides of the positioning block 805. A rubber pad is fixed on the side of the limiting block 804 facing the positioning block 805. The rubber pad and sponge pad can effectively reduce the impact force of the collision between the limiting block 804 and the positioning block 805, thereby making the whole more durable.

[0027] In general, when the flip arm 5 moves, the positioning block 805 will move, and the set limit block 804 can effectively limit the moving distance of the positioning block 805, thereby effectively preventing the flip arm 5 from moving too much and effectively improving the overall durability.

[0028] The working principle of the above embodiment is:

[0029] When the cab jumps upward, it will pull the flip arm 5 to move upward, thereby causing the flip arm 5 to flip along the hinge point with the fixed block 3, and then pull the hinge block 704 and the buffer rod 703, causing the buffer spring 702 to deform, thereby buffering the vibration to a certain extent, and when the flip arm 5 moves, the positioning block 805 will contact the limit block 804, so that the limit block 804 limits the movement of the positioning block 805, effectively preventing the flip arm 5 from flipping too much, and by rotating the rotating rod 802, the pushing block 803 can be driven by the limit block 804 to move due to the extrusion of the thread, so that the restricted range can be effectively adjusted, and a choice can be made between the buffering effect and durability. The overall structure is simple, which effectively improves the overall practicality and makes the overall more durable.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0031] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A spring-damped cab front suspension, comprising two fixing members (1), characterized in that: A connecting piece (2) is fixed on the top of the fixing piece (1), a fixing block (3) is fixed on the top of the connecting piece (2), a lateral stabilizing bar (4) is rotatably connected inside the two fixing blocks (3), and a flip arm (5) is hinged inside the fixing block (3); A mounting member (6) is fixed on the left side of the flip arm (5); a buffer assembly (7) slidably connected to the flip arm (5) is fixed on the top of the fixed block (3); the buffer assembly (7) is used to buffer the generated vibration; a limit assembly (8) is arranged inside the fixed block (3); the limit assembly (8) is used to limit the flipping distance of the flip arm (5); The limiting assembly (8) comprises a limiting rod (801), a rotating rod (802), two pushing blocks (803), two limiting blocks (804) and a positioning block (805); the top of the fixed block (3) is fixed to the limiting rod (801); the interior of the limiting rod (801) is rotatably connected to the rotating rod (802); the rotating rod (802) passes through the bottom of the fixed block (3); the outer surface of the rotating rod (802) is threadedly connected to the pushing block (803); the pushing block (803) passes through the outside of the limiting rod (801); the pushing block (803) is fixed to the limiting block (804); and the positioning block (805) is fixed to the flip arm (5).

2. The spring-damped cab front suspension according to claim 1, characterized in that: The buffer assembly (7) comprises a buffer block (701), a buffer spring (702), a buffer rod (703) and a hinge block (704); the buffer block (701) is fixed to the fixed block (3); the interior of the buffer block (701) is fixed to the buffer spring (702); the top of the buffer spring (702) is fixed to the buffer rod (703); the buffer rod (703) is hinged to the hinge block (704); and the hinge block (704) is slidably connected to the flip arm (5).

3. The spring-damped cab front suspension according to claim 2, characterized in that: Sliding blocks are fixed to both the front and rear sides of the hinge block (704), and a sliding groove slidably connected to the sliding block is provided inside the flip arm (5).

4. The spring-damped cab front suspension according to claim 1, characterized in that: A fixed bearing is fixed to the inner top wall of the limiting rod (801), and the interior of the fixed bearing is fixed to the rotating rod (802).

5. The spring-damped cab front suspension according to claim 1, characterized in that: The rotating rod (802) is a bidirectional threaded screw, and a threaded hole matching the bidirectional threaded screw is provided inside the pushing block (803).

6. The spring-damped cab front suspension according to claim 1, characterized in that: A control block is fixed at the bottom of the rotating rod (802), and a friction strip is fixed on the outer surface of the control block.

7. The spring-damped cab front suspension according to claim 1, characterized in that: Sponge pads are fixed to both the upper and lower sides of the positioning block (805), and a rubber pad is fixed to the side of the limiting block (804) facing the positioning block (805).

8. The spring-damped cab front suspension according to claim 2, characterized in that: A weight-reducing hole is provided inside the flip arm (5), and the buffer spring (702) is a high-strength steel spring.

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