Vibration reduction structure of anti-rolling frame

Abstract

The utility model provides a vibration reduction structure of an anti-rolling frame, and belongs to the technical field of engineering machinery. The technical problems that in the prior art, an anti-rolling frame is prone to producing vibration and noise, the using comfort of an operator is affected, and the reliability of equipment is reduced are solved. According to the technical scheme, the damping structure of the anti-rolling frame comprises a shaft, a damper, a first gasket, a second gasket, a flange sleeve and a nut which are arranged between a frame body and the anti-rolling frame, the frame body is provided with a mounting hole, the anti-rolling frame is provided with a mounting shaft sleeve, the damper is arranged in the mounting shaft sleeve, and the flange sleeve is arranged in the mounting shaft sleeve. The shaft sequentially penetrates through the first gasket, the shock absorber, the second gasket, the flange sleeve and the mounting hole and then is connected with the nut. The anti-rolling frame has the advantages that radial vibration reduction of the anti-rolling frame can be achieved through the arrangement of the anti-rolling frame, axial vibration reduction of the anti-rolling frame can be achieved through the arrangement of the rubber gaskets, and therefore vibration and noise are effectively reduced, and comfort of an operator is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of process machinery, in particular to a vibration reduction structure of an anti-rollover frame. Background Art

[0002] In the field of engineering machinery, roll cages are used to protect drivers. They are generally in an integral form and rigidly connected to fixed structures such as vehicle frames. During operation, due to the large vibration of engineering machinery, the rigid fixing method will cause vibration of the overall structure and generate noise, affecting the operator's comfort. The vibration of the structure will also reduce the reliability of the equipment, thereby reducing the service life of the equipment. Therefore, a vibration reduction structure design suitable for roll cages of engineering machinery is needed to solve the above technical problems. Utility Model Content

[0003] The purpose of the utility model is to overcome the technical problems in the background technology and provide a roll cage vibration reduction structure, which can meet the requirements of operator safety, comfort and reliability of the equipment throughout its life cycle.

[0004] In order to achieve the above-mentioned purpose of the utility model, the technical solution adopted by the utility model is specifically: a roll-over cage vibration reduction structure, including a shaft, a shock absorber, a first gasket, a second gasket, a flange sleeve and a nut arranged between a frame body and the roll-over cage, the frame body is provided with a mounting hole, the roll-over cage is provided with a mounting sleeve, the shock absorber is arranged in the mounting sleeve, and the shaft passes through the first gasket, the shock absorber, the second gasket, the flange sleeve and the mounting hole in sequence and is connected to the nut.

[0005] Furthermore, the shock absorber is interference-fitted with the mounting sleeve of the roll cage, so that the shock absorber is more securely mounted, and the stop surface on the mounting sleeve is limited so that the shock absorber can play a role in radial vibration reduction on the roll cage.

[0006] Furthermore, one side of the shaft has a step surface for supporting one end of the shock absorber, and the end of the flange sleeve away from the flange end face is inserted into the mounting sleeve for supporting the other end of the shock absorber. The end face of the shock absorber close to the shaft is flush with the end face of the mounting sleeve, and the two ends of the shock absorber are respectively supported by the step surface and the flange sleeve, which further enhances the firmness of the shock absorber installation and is more reliable during actual use.

[0007] Further, the first gasket is arranged between the end face of the shaft and the anti-rollover cage, and the second gasket is arranged between the flange end face of the flange sleeve and the anti-rollover cage. The first gasket and the second gasket respectively play a role in axial vibration reduction for the anti-rollover cage.

[0008] Furthermore, the shock absorber is in the form of a structure with inner and outer steel rings and a rubber body bonded in the middle, and this structure makes the shock absorber have a better vibration reduction effect.

[0009] Furthermore, the first gasket and the second gasket are both rubber soft gaskets, and the gasket made of rubber material is conducive to improving the effect of axial vibration reduction.

[0010] Furthermore, the shaft passes through the mounting holes on the shock absorber, the flange sleeve and the frame body, is tightened by nuts, and is integrally mounted on the frame body.

[0011] Furthermore, a first gap is formed between the end surface of the shaft and the rollover cage, and the first gasket is disposed in the first gap.

[0012] Furthermore, after the flange sleeve is pressed against the shock absorber, a second gap is formed between the flange end surface and the anti-rollover cage, and the second gasket is arranged in the second gap.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The vibration reduction structure can achieve radial vibration reduction of the roll cage by installing a shock absorber in the mounting sleeve of the roll cage, and can achieve axial vibration reduction of the roll cage by arranging rubber soft gaskets on both sides of the mounting sleeve. This vibration reduction structure design can play a vibration reduction role in both axial and radial directions; in addition, the vibration reduction structure can be used in combination of multiple groups, so that it can have a good vibration reduction effect and meet the requirements of operator safety, comfort and reliability of the equipment throughout its life cycle.

[0015] 2. The shock absorber is set in the mounting sleeve, and the two ends of the shock absorber are supported by the flange sleeve and the step surface respectively. Therefore, the shock absorber is installed firmly and reliably, and the radial vibration reduction effect of the rollover cage is greatly improved. Rubber soft gaskets are set at both ends of the shock absorber. The first gasket and the second gasket respectively play an axial vibration reduction effect, which is beneficial to further improve the axial vibration reduction effect of the rollover cage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0017] Figure 1 This is a schematic diagram of the installation of the roll cage according to an embodiment of the utility model.

[0018] Figure 2 It is an exploded schematic diagram of the vibration reduction structure of an embodiment of the utility model.

[0019] Figure 3 It is a schematic cross-sectional view of the vibration reduction structure of an embodiment of the utility model.

[0020] Figure 4 This is a schematic diagram of the installation of multiple groups of vibration reduction structures in an embodiment of the utility model.

[0021] Among them, the figure markings are: 1. frame body; 2. anti-roll cage; 3. shaft; 4. shock absorber; 5. first gasket; 6. flange sleeve; 7. nut; 8. second gasket; 9. installation sleeve. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. Of course, the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] Example: Figure 1-4 As shown, this embodiment provides a roll cage vibration reduction structure, including a shaft 3, a shock absorber 4, a first gasket 5, a second gasket 8, a flange sleeve 6 and a nut 7 arranged between a frame body 1 and a roll cage 2, a mounting hole is arranged on the frame body 1, a mounting sleeve 9 is arranged on the roll cage 2, the shock absorber 4 is arranged in the mounting sleeve 9, and the shaft 3 passes through the first gasket 5, the shock absorber 4, the second gasket 8, the flange sleeve 6 and the mounting hole in sequence and is connected to the nut 7.

[0024] The shock absorber 4 is interference fit with the mounting sleeve 9 of the roll cage 2, which makes the installation of the shock absorber 4 more secure. By limiting the stop surface on the mounting sleeve 9, the shock absorber 4 plays a role in radial vibration reduction on the roll cage 2. The shock absorber 4 is a structural form of inner and outer steel rings with a rubber body bonded in the middle. This structural form makes the vibration reduction effect of the shock absorber 4 better. One side of the shaft 3 has a step surface for supporting one end of the shock absorber 4. The end of the flange sleeve 6 away from the flange end face is inserted into the mounting sleeve for supporting the other end of the shock absorber 4. The end face of the shock absorber 4 close to the shaft 3 is flush with the end face of the mounting sleeve 9. The two ends of the shock absorber 4 are respectively supported by the step surface and the flange sleeve 6, which further enhances the firmness of the installation of the shock absorber 4 and is more reliable during actual use.

[0025] The first gasket 5 is arranged between the end face of the shaft 3 and the anti-rollover cage 2, and the second gasket 8 is arranged between the flange end face of the flange sleeve 6 and the anti-rollover cage 2. The first gasket 5 and the second gasket 8 respectively play the role of axial vibration reduction on the anti-rollover cage 2. The shaft 3 passes through the mounting holes on the shock absorber 4, the flange sleeve 6 and the frame body 1, is tightened by the nut 7, and is installed on the frame body 1 as a whole. A first gap is formed between the end face of the shaft and the anti-rollover cage 2, and the first gasket 5 is arranged in the first gap. After the flange sleeve 6 presses the shock absorber 4, a second gap is formed between the flange end face and the anti-rollover cage 2, and the second gasket 8 is arranged in the second gap. The first gasket 5 and the second gasket 8 are both rubber soft gaskets. The first gasket 5 and the second gasket 8 made of rubber material are more conducive to improving the effect of axial vibration reduction.

[0026] This vibration reduction structure is designed to be installed on the anti-rollover cage 2, and multiple groups can be arranged to cooperate to form an overall vibration reduction.

[0027] If the shock absorber 4, the first gasket 5 and the second gasket 8 are damaged by overload or fail, the roll cage 2 will not be separated from the frame body 1 under the constraints of the nut 7, the flange sleeve 6 and the shaft 3, and can also play a protective role.

[0028] As mentioned above, this vibration reduction structure design can play a vibration reduction role in both the axial and radial directions. After multiple groups of vibration reduction structures are used in combination, they can have a good vibration reduction effect and meet the needs of operator safety, comfort and reliability of the equipment throughout its life cycle.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A roll cage vibration reduction structure, characterized in that: The invention comprises a shaft (3) arranged between a vehicle frame body (1) and an anti-rollover cage (2), a shock absorber (4), a first gasket (5), a second gasket (8), a flange sleeve (6) and a nut (7); the vehicle frame body (1) is provided with a mounting hole, the anti-rollover cage (2) is provided with a mounting sleeve (9), the shock absorber (4) is arranged in the mounting sleeve (9), and the shaft (3) passes through the first gasket (5), the shock absorber (4), the second gasket (8), the flange sleeve (6) and the mounting hole in sequence and is connected to the nut (7).

2. The anti-rollover cage vibration reduction structure according to claim 1, characterized in that: The shock absorber (4) is interference-fitted with the mounting sleeve (9) of the anti-rollover cage (2), and the shock absorber (4) plays a role in radial vibration reduction on the anti-rollover cage (2) through the stop surface limit on the mounting sleeve (9).

3. The anti-rollover cage vibration reduction structure according to claim 2, characterized in that: One side of the shaft (3) has a step surface for supporting one end of the shock absorber (4); the end of the flange sleeve (6) away from the flange end surface is inserted into the mounting sleeve (9) for supporting the other end of the shock absorber (4).

4. The anti-rollover cage vibration reduction structure according to claim 1, characterized in that: The first gasket (5) is arranged between the end face of the shaft (3) and the anti-rollover cage (2), and the second gasket (8) is arranged between the flange end face of the flange sleeve (6) and the anti-rollover cage (2). The first gasket (5) and the second gasket (8) respectively play a role in axial vibration reduction for the anti-rollover cage (2).

5. The anti-rollover cage vibration reduction structure according to claim 1, characterized in that: The shock absorber (4) is in the form of a structure with inner and outer steel rings and a rubber soft body bonded in the middle.

6. The anti-rollover cage vibration reduction structure according to claim 1, characterized in that: The first gasket (5) and the second gasket (8) are both rubber soft gaskets.

7. The anti-rollover cage vibration reduction structure according to claim 1, characterized in that: The shaft (3) passes through the shock absorber (4), the flange sleeve (6) and the mounting holes on the frame body (1), is tightened by a nut (7), and is integrally mounted on the frame body (1).

8. The anti-rollover cage vibration reduction structure according to claim 4, characterized in that: A first gap is formed between the end surface of the shaft (3) and the anti-rollover cage (2), and the first gasket (5) is arranged in the first gap.

9. The anti-rollover cage vibration reduction structure according to claim 1, characterized in that: After the flange sleeve (6) is pressed against the shock absorber (4), a second gap is formed between the flange end surface and the anti-rollover cage (2), and the second gasket (8) is arranged in the second gap.

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