Adjustable load-reducing and anti-falling support device suitable for cantilever structure

Abstract

The invention relates to the technical field of bogie suspension supports, and discloses an adjustable load-reducing and anti-falling support device suitable for a cantilever structure. The bracket body is arranged at the top of the auxiliary equipment; the connecting piece is arranged at the top of the bracket body; the adjustable elastic component is arranged on one side of the connecting piece; the pull ring is arranged at the bottom of the support body, and the pull ring is connected with the adjustable elastic component through a rigid pull rope; the fixed pulley assembly is arranged on one side of the support body and connected with the rigid pull rope. Vibration of the lower portion of the support body is restrained through the shock absorber, pre-stretching of the steel spring is achieved through the adjustable stud, failure of the steel spring is prevented through the adjusting bolt, and meanwhile the anti-disengaging function is achieved under the condition that the support body breaks down; therefore, the influence of auxiliary equipment on the long cantilever support and the large safety risk caused after the support is broken can be reduced.

Description

Technical Field

[0001] This invention relates to the field of bogie suspension support technology, and more specifically, to an adjustable load-reducing and anti-derailment support device suitable for cantilever structures. Background Technology

[0002] To meet the functional requirements of the vehicle, auxiliary equipment such as antenna devices, wheel flange lubrication devices, obstacle removal devices, and obstacle clearers need to be installed on the bogie frame. These auxiliary devices are connected to the frame via brackets. The operating conditions at the ends of the frame are relatively harsh, and most of the brackets are cantilever structures. Therefore, bracket failure can occur during operation.

[0003] like Figure 5 As shown ( Figure 5 In the diagram, A represents the upper support, B represents the lower support, C represents the auxiliary equipment, and D represents the vibration damping device. In the existing connection scheme between the support, the frame, and the auxiliary equipment, the upper support is connected to the frame, the lower support is connected to the auxiliary equipment, and the upper support is connected to the lower support.

[0004] In actual service testing, it was found that the vibration magnitude at the frame end under wheel-rail excitation was relatively large. The support is a long cantilever structure with auxiliary equipment installed at the far end. Through simulation analysis of the support, it was found that the weight of the auxiliary equipment at the far end of the support has a very large impact on the support. The existing solution is to set up a device with a damping vibration reduction structure inside the lower support to enable the support to have its own vibration reduction function. However, this device with a damping vibration reduction structure only attenuates the influence of external excitation and does not improve the external excitation conditions of the support. In addition, the structure has no anti-detachment function, which poses a significant risk to the operation safety after the support breaks.

[0005] No effective solutions have yet been proposed to address the problems in the relevant technologies. Summary of the Invention

[0006] In view of the problems in related technologies, the present invention proposes an adjustable load-reducing and anti-detachment support device suitable for cantilever structures, so as to overcome the above-mentioned technical problems existing in the existing related technologies.

[0007] Therefore, the specific technical solution adopted by the present invention is as follows: An adjustable load-reducing and anti-detachment support device suitable for cantilever structures is disclosed. The device includes: an auxiliary device; a support body disposed on top of the auxiliary device; a connector disposed on top of the support body; an adjustable elastic component disposed on one side of the connector; a pull ring disposed on the bottom of the support body, and the pull ring is connected to the adjustable elastic component by a rigid pull rope; and a fixed pulley assembly disposed on one side of the support body and connected to the rigid pull rope.

[0008] Furthermore, in order to generate tension through the pre-tension of the steel spring, and to transmit the tension through the fixed pulley assembly to offset the weight of the support body and the auxiliary equipment, thereby reducing the impact of the auxiliary equipment and the weight of the support body on the support body, the fixed pulley assembly includes a fixed pulley support seat set on one side of the support body, a fixed pulley that cooperates with the rigid pull rope is set on one side of the fixed pulley support seat, one end of the rigid pull rope is connected to the adjustable elastic component, the other end of the rigid pull rope is connected to the pull ring, and the rigid pull rope is set on the outer circumference of the fixed pulley.

[0009] Furthermore, to suppress the lower vibration of the support body using vibration dampers and to pre-tension the steel spring using adjustable studs, while adjusting bolts prevent steel spring failure and provide an anti-detachment function in the event of support body fracture, thereby reducing the impact of auxiliary equipment on the long cantilever support and minimizing the significant safety risks caused by support fracture, the adjustable spring assembly includes a mounting barrel located on one side of the connector. An adjustable stud is located on one side of the mounting barrel, a length marking component is located on the top of the adjustable stud, and a steel spring is located on one side of the adjustable stud. A front cover is located on the outer side of the mounting barrel. The front cover has a vibration damping component that works with a steel spring on one side. The length marking component includes a pointer on the top of the adjustable stud, with a scale on the top of the pointer. The scale is located on the outer side of the circumference of the mounting barrel. The adjustable stud has a trapezoidal cross-section. The vibration damping component includes an auxiliary front cover on one side of the front cover. A vibration damper is installed between the front cover and the auxiliary front cover. The vibration damping component also includes adjusting bolts on both sides inside the front cover. One end of the adjusting bolt has a slider that works with the steel spring, and one end of the slider is inserted into the inner center of the front cover. The other end of the slider has a washer.

[0010] Specifically, adjusting the adjustable stud stretches the steel spring. The tension of the steel spring is transmitted to the pull ring through the slider and rigid pull rope. The direction of the force is then changed through the fixed pulley so that the tension on the pull ring is equal to the tension generated by the stretching of the steel spring. When the support body vibrates, the slider moves left and right to drive the stretching and compression of the vibration damper. The vibration damper converts mechanical energy into heat energy, suppressing the vibration of the support body.

[0011] The beneficial effects of this invention are as follows: 1. This invention changes the structural form of the traditional support, generates tension through pre-tensioning of steel springs, and transmits the tension through a fixed pulley assembly to offset the weight of the support body and auxiliary equipment, thereby reducing the impact of the auxiliary equipment and the weight of the support body on the support body.

[0012] 2. This invention uses a vibration damper to suppress the lower vibration of the support body, and uses an adjustable stud to pre-tension the steel spring. The adjusting bolt prevents the steel spring from failing. At the same time, it has an anti-detachment function in the event of a breakage of the support body, thereby reducing the impact of auxiliary equipment on the long cantilever support and the significant safety risks caused by the breakage of the support. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of an adjustable load-reducing and anti-detachment support device for cantilever structures according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the adjustable elastic component in an adjustable load-reducing and anti-detachment support device for cantilever structures according to an embodiment of the present invention; Figure 3 This is a force analysis diagram of an adjustable load-reducing and anti-detachment support device for cantilever structures according to an embodiment of the present invention; Figure 4 This is a force analysis diagram of an adjustable elastic component in an adjustable load-reducing and anti-detachment support device for cantilever structures according to an embodiment of the present invention. Figure 5 This is a schematic diagram of the structure of a stent in the existing technology.

[0015] In the picture: 1. Auxiliary equipment; 2. Support body; 3. Connecting parts; 4. Adjustable spring assembly; 401. Mounting bucket; 402. Adjustable stud; 403. Length marking assembly; 4031. Pointer; 4032. Dial; 404. Steel spring; 405. Vibration damping assembly; 4051. Shim; 4052. Auxiliary front cover; 4053. Vibration damper; 4054. Adjusting bolt; 4055. Slider; 406. Front cover; 5. Pull ring; 6. Rigid pull rope; 7. Fixed pulley assembly; 701. Fixed pulley support seat; 702. Fixed pulley. Detailed Implementation

[0016] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention.

[0017] According to an embodiment of the present invention, an adjustable load-reducing and anti-detachment support device suitable for cantilever structures is provided.

[0018] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figures 1-4 As shown, an adjustable load-reducing and anti-detachment support device for cantilever structures according to an embodiment of the present invention includes: an auxiliary device 1; a support body 2 disposed on the top of the auxiliary device 1; a connector 3 disposed on the top of the support body 2; an adjustable elastic component 4 disposed on one side of the connector 3; a pull ring 5 disposed on the bottom of the support body 2, and the pull ring 5 and the adjustable elastic component 4 are connected by a rigid pull rope 6; and a fixed pulley assembly 7 disposed on one side of the support body 2 and connected to the rigid pull rope 6.

[0019] Specifically, this invention is based on a large amount of measured data, on-site vehicle surveys, and customer needs. For example, in a certain project, an antenna bracket malfunctioned, specifically a break in the lower part of the bracket. After the bracket broke, it was suspended by cables. Through simulation analysis of similar structural brackets, it was found that reducing the weight of the auxiliary equipment installed at the lower part of the bracket by 1 kg resulted in an order-of-magnitude improvement in its safety factor. Secondly, the user required that the bracket should have an anti-detachment function in the event of a breakage to ensure the safety of vehicle operation.

[0020] Auxiliary equipment 1 generates a torque on the support under gravity. The greater the weight and the longer the lever arm, the greater the impact on the support. A pre-tension force is applied by the adjustable elastic component 4. This tension force is transmitted to the area directly above auxiliary equipment 1 via the rigid pull rope 6 and the fixed pulley 702. The vertical component of the tension force counteracts the gravity of auxiliary equipment 1, changing the direction and point of force application on the support, thereby reducing the impact of the auxiliary equipment 1 and the support's own weight on the support. For example, if an auxiliary equipment weighing m1 is installed on the support, the pre-tension force of the adjustable elastic component 4 is set to F'. F'=F3=(F1+F2) / cosa=(m1+m2)g / cosa; In the formula, m1 represents the weight of the auxiliary device, m2 represents the weight of the lower part of the support, a represents the angle between the rigid rope and the horizontal, F1 represents the weight of the auxiliary device with weight m1, F2 represents the weight of the support with weight m2, and g represents the acceleration due to gravity.

[0021] Specifically, F' can be adjusted by the extension length s of the steel spring 404 (stiffness k), where F' = k·s. The extension of the steel spring 404 is achieved by rotating the adjustable stud 402, and the adjustment amount is controlled by the displacement of the pointer 4031 and the dial 4032 fixed on the adjustable stud 402.

[0022] In one embodiment, the fixed pulley assembly 7 includes a fixed pulley support 701 disposed on one side of the support body 2. A fixed pulley 702 cooperating with a rigid pull rope 6 is disposed on one side of the fixed pulley support 701. One end of the rigid pull rope 6 is connected to the adjustable elastic component 4, and the other end of the rigid pull rope 6 is connected to the pull ring 5. The rigid pull rope 6 is disposed on the outer circumference of the fixed pulley 702, so that the steel spring 404 pre-stretches to generate tension. The tension is transmitted through the fixed pulley assembly 7 to offset the weight of the support body 2 and the auxiliary equipment 1, thereby reducing the impact of the auxiliary equipment 1 and the weight of the support body 2 on the support body 2.

[0023] In one embodiment, the adjustable elastic component 4 includes a mounting barrel 401 disposed on one side of the connector 3. An adjustable stud 402 is disposed on one side of the mounting barrel 401, a length marking component 403 is disposed on the top of the adjustable stud 402, and a steel spring 404 is disposed on one side of the adjustable stud 402. A front cover 406 is disposed on the outer side of the mounting barrel 401, and a vibration damping component 405 cooperating with the steel spring 404 is disposed on one side of the front cover 406. The length marking component 403 includes a pointer 4031 disposed on one side of the top of the adjustable stud 402, a dial 4032 disposed on the top of the pointer 4031, and the dial 4032 is disposed on the outer circumference of the mounting barrel 401. The adjustable stud 402 has a trapezoidal cross-section. The vibration damping component 405 includes components disposed on the front cover. An auxiliary front cover 4052 is provided on one side of 406, and a vibration damper 4053 is provided between the front cover 406 and the auxiliary front cover 4052. The vibration damping assembly 405 also includes adjusting bolts 4054 provided on both sides inside the front cover 406. One end of the adjusting bolt 4054 is provided with a slider 4055 that cooperates with the steel spring 404, and one end of the slider 4055 is inserted into the inner middle of the front cover 406. The other end of the slider 4055 is provided with a washer 4051. In this way, the vibration damper 4053 suppresses the lower vibration of the support body 2, and the adjustable stud 402 is used to achieve the pre-tension of the steel spring 404. The adjusting bolt 4054 prevents the failure of the steel spring 404. At the same time, it has an anti-detachment function in the event of a breakage failure of the support body 2, thereby reducing the impact of the auxiliary equipment 1 on the long cantilever support and the significant safety risk caused by the support breakage.

[0024] The mounting bucket 401 is mounted on the connector 3; the adjustable stud 402 and the mounting bucket 401 can move left and right by rotation; the pointer 4031 is a disc-shaped structure fixed to the tail of the adjustable stud 402, and the scale 4032 is mounted on the outer circumference of the cylindrical part of the mounting bucket 401 and can move left and right. The extension length of the spring is controlled by the displacement of the pointer 4031 and the scale 4032; the front cover 406 is mounted on the mounting bucket 401, and the slider 4055 can slide left and right with the front cover 406. One end of the slider 4055 is connected to the rigid pull rope 6, and the other end is connected to the steel spring; the auxiliary front cover 4052 is fixed on the front cover 406, and one end of the shock absorber 4053 is fixed on the slider 4055, and the other end is fixed on the auxiliary front cover 4052; the adjusting bolt 4054 is mounted on the slider 4055, and the gap between the adjusting bolt 4054 and the front cover 406 is adjusted by adjusting the shim 4051.

[0025] Specifically, during vehicle operation, if the lower part of the support body 2 vibrates, accompanied by the left and right movement of the slider 4055, the shock absorber 4053 fixed to the slider 4055 and the front cover 406 will suppress the vibration of the lower part of the support body 2. An adjusting bolt 4054 is installed at the tail of the slider 4055, and the gap between the adjusting bolt 4054 and the front cover 406 is adjusted by adjusting the shim 4051. Under the condition of ensuring the function of the shock absorber 4053, the adjustable elastic component 4 still has a certain function in the event of failure of the steel spring 404. Moreover, the rigid pull rope 6 in this invention is always in a taut state, which can prevent the support body 2 and auxiliary equipment 1 from falling in the event of a breakage of the support body 2. This anti-detachment function effectively improves operational safety.

[0026] To facilitate understanding of the above technical solutions of the present invention, the working principle or operation method of the present invention in actual process will be described in detail below.

[0027] In practical applications, the adjustable load-reducing function includes: adjusting the adjustable stud 402 to stretch the steel spring 404; the tension of the steel spring 404 is transmitted to the pull ring 5 through the slider 4055 and the rigid pull rope 6; and the direction of the force is changed by the fixed pulley 702, so that the pull ring 5 is subjected to an upward tension that is exactly equal to the tension generated by the stretching of the steel spring 404. The amount of stretching of the steel spring 404 is controlled by the displacement of the pointer 4031 and the dial 4032, thereby achieving weight offsetting for auxiliary equipment 1 of different weights and improving the operating environment of the support body 2.

[0028] The vibration reduction function includes: when the lower part of the support body 2 vibrates up and down, the slider 4055 moves left and right, thereby driving the stretching and compression of the vibration damper 4053. The vibration damper 4053 converts mechanical energy into heat energy, suppressing the vibration of the lower part of the support body 2.

[0029] The self-prevention function includes: when the steel spring 404 fails, the tension of the steel spring 404 decreases or disappears, the slider 4055 slides to the right, the gap between the adjusting bolt 4054 and the front cover 406 decreases, and the slider 4055 will no longer slide to the right when the adjusting bolt 4054 contacts the front cover 406. By adjusting the shim 4051, the gap between the adjusting bolt 4054 and the front cover 406 is adjusted, ensuring the function of the shock absorber 4053, and allowing the adjustable spring assembly 4 to still have a certain function in the event of the failure of the steel spring 404.

[0030] In summary, by utilizing the above-mentioned technical solutions of the present invention, the present invention changes the structural form of the traditional support, generates tension through the pre-tension of the steel spring 404, and transmits the tension through the fixed pulley assembly 7 to offset the weight of the support body 2 and the auxiliary equipment 1, thereby reducing the impact of the auxiliary equipment 1 and the support's own weight on the support body 2. The present invention uses a vibration damper 4053 to suppress the lower vibration of the support body 2, and uses an adjustable stud 402 to achieve the pre-tension of the steel spring 404. The adjusting bolt 4054 prevents the failure of the steel spring 404, and at the same time has an anti-detachment function in the event of a fracture failure of the support body 2, thereby reducing the impact of the auxiliary equipment 1 on the long cantilever support and the significant safety risks caused by the support fracture.

[0031] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0032] 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 within the protection scope of the present invention.

Claims

1. An adjustable load reduction and anti-dislodgement bracket device for cantilevered structures, comprising: The device comprises: an auxiliary device (1); a bracket body (2) arranged on the top of the auxiliary device (1); a connecting piece (3) arranged on the top of the bracket body (2); an adjustable elastic component (4) arranged on one side of the connecting piece (3); a pull ring (5) arranged on the bottom of the bracket body (2), and the pull ring (5) is connected with the adjustable elastic component (4) through a rigid pull rope (6); a fixed pulley assembly (7) arranged on one side of the bracket body (2) and connected with the rigid pull rope (6).

2. A load reducing and anti-dislodging bracket device for cantilevered structures as claimed in claim 1, wherein, The fixed pulley assembly (7) comprises a fixed pulley support seat (701) arranged on one side of the bracket body (2), and one side of the fixed pulley support seat (701) is provided with a fixed pulley (702) matched with the rigid pull rope (6).

3. A weight-adjustable and anti-disengagement support device for cantilever structures according to claim 2, characterized in that, One end of the rigid pull rope (6) is connected with the adjustable elastic component (4), the other end of the rigid pull rope (6) is connected with the pull ring (5), and the rigid pull rope (6) is arranged on the outer side of the circumference of the fixed pulley (702).

4. The adjustable load reducing and anti-dislodging bracket device for cantilevered structures of claim 1, wherein, The adjustable elastic component (4) comprises a mounting barrel (401) arranged on one side of the connecting piece (3), an adjustable stud (402) is arranged on the inner side of the mounting barrel (401), a length marking component (403) is arranged on the top of the adjustable stud (402), and a steel spring (404) is arranged on one side of the adjustable stud (402). A front cover (406) is arranged on the outer side of the mounting barrel (401), and a damping component (405) matched with the steel spring (404) is arranged on one side of the front cover (406).

5. A weight-adjustable and anti-disengagement support device for cantilever structures according to claim 4, characterized in that, The length marking component (403) comprises a pointer (4031) arranged on one side of the top of the adjustable stud (402), and a scale disc (4032) is arranged on the top of the pointer (4031), and the scale disc (4032) is arranged on the outer side of the circumference of the mounting barrel (401).

6. A weight-adjustable and anti-disengagement support device for cantilever structures according to claim 5, characterized in that, The cross section of the adjustable stud (402) is a trapezoidal structure.

7. A weight-adjustable and anti-disengagement bracket device for cantilever structures according to claim 6, characterized in that, The damping component (405) comprises an auxiliary front cover (4052) arranged on one side of the front cover (406), and a shock absorber (4053) is arranged between the front cover (406) and the auxiliary front cover (4052).

8. A weight-adjustable and anti-disengagement support device for cantilever structures according to claim 7, characterized in that, The damping component (405) further comprises adjusting bolts (4054) arranged on both sides of the inside of the front cover (406), one end of the adjusting bolt (4054) is provided with a sliding block (4055) matched with the steel spring (404), one end of the sliding block (4055) is inserted into the inner middle part of the front cover (406), and the other end of the sliding block (4055) is provided with a gasket (4051).

9. A weight-adjustable and anti-disengagement support device for a cantilever structure according to claim 8, characterized in that, Adjusting the adjustable stud (402) to stretch the steel spring (404), the tension of the steel spring (404) is transmitted to the pull ring (5) through the sliding block (4055) and the rigid pull rope (6), and the direction of the force is changed through the fixed pulley (702), so that the tension of the pull ring (5) is equal to the tension generated by the stretching of the steel spring (404).

10. A load reducing and anti-dislodging bracket device for cantilevered structures as claimed in claim 9, wherein, When the support body (2) vibrates, the slider (4055) moves left and right to drive the damper (4053) to stretch and compress, and the mechanical energy is converted into heat energy through the damper (4053), thereby inhibiting the vibration of the support body (2).

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