Noise reduction slewing mechanism of hook buffer device and vehicle

Abstract

The utility model relates to a noise reduction slewing mechanism of a hook buffer device, which is used for railway vehicles. A first mounting hole and a second mounting hole are oppositely formed in the slewing mechanism seat body; the buffer mechanism is mounted in a seat body accommodating space formed between the first mounting hole and the second mounting hole, and comprises a buffer shell and a buffer unit positioned in the buffer shell; the rotating assembly comprises a first rotating shaft and a second rotating shaft, and the first rotating shaft and the buffer shell are rotationally mounted at the first mounting hole; the second rotating shaft and the buffer shell are rotationally mounted at the second mounting hole; a vertical gap limiting assembly is installed on the first rotating shaft and / or the second rotating shaft and used for limiting a vertical gap at the matching position of the rotating assembly, the buffer shell and the rotating mechanism base.

Description

TECHNICAL FIELD

[0001] The present application relates to the rail transit technical field, especially relates to a hook buffer device noise reduction slewing mechanism and a vehicle. BACKGROUND

[0002] The car hook slewing mechanism is usually located at the rear end of the car hook, and mainly functions to connect and fix the car hook with the car body, to enable the car hook to rotate within a certain range in the horizontal plane and the vertical plane while transmitting the longitudinal force of the train, so as to meet the requirements of the train passing through the curve.

[0003] For the EFG type buffer, the buffer unit rotates in the horizontal plane during the operation of the vehicle. There is a loud abnormal noise problem between the buffer unit and the slewing mechanism seat body. It is analyzed that the abnormal noise is mainly caused by the vertical gap in the structure of the existing car hook slewing mechanism, and the single-track train with rubber tires has a larger vertical and nodding motion of the car body compared with the subway train, and the nodding motion will cause frequent vertical relative motion between the rotating shaft and the slewing mechanism seat body, and cause the abnormal noise caused by the mutual impact of the car hook parts.

[0004] In order to solve the abnormal noise problem, the current scheme is to reduce the vertical gap as much as possible by increasing the thickness of the gasket. This scheme can reduce the relative vertical motion to a certain extent. However, due to the reduction of the gap between the parts, the assembly is difficult, the process is poor, and the vertical gap increases after a long period of use, which causes the gasket to wear and the abnormal noise to occur again. CONTENT OF THE UTILITY MODEL

[0005] The utility model at least solves one of the technical problems in the related art to a certain extent, and provides a hook buffer device noise reduction slewing mechanism and a vehicle.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a hook buffer device noise reduction slewing mechanism, which comprises:

[0007] The slewing mechanism seat body is relatively formed with a first mounting hole and a second mounting hole thereon;

[0008] The buffer mechanism is installed in the seat body containing space formed between the first mounting hole and the second mounting hole, and comprises a buffer shell and a buffer unit in the buffer shell;

[0009] The slewing assembly comprises a first rotating shaft and a second rotating shaft, wherein the first rotating shaft is rotatably installed with the buffer shell at the first mounting hole, and the second rotating shaft is rotatably installed with the buffer shell at the second mounting hole;

[0010] A vertical gap limiting assembly is installed at the first rotating shaft and / or the second rotating shaft, for limiting the vertical gap at the fitting place of the slewing assembly, the buffer shell and the slewing mechanism seat body.

[0011] In the embodiments of the present application, the vertical gap limiting assembly is arranged to limit the vertical gap that may be generated between the rotating components. Considering the working process of the noise reduction rotating mechanism of the reverse hooking device, the vertical gap may be generated at the matching positions of the rotating components. According to the actual design requirements, the vertical gap limiting assembly may be arranged at the first rotating shaft, the second rotating shaft, or both. The vertical movement of the rotating mechanism is limited during the operation of the vehicle.

[0012] In combination with the first aspect, in some implementations of the first aspect, the gap limiting assembly includes a cover plate arranged at the side of the first rotating shaft, the cover plate is fixedly arranged with the rotating mechanism seat, and a vertical gap is formed between the cover plate and the first rotating shaft, and an elastic assembly is arranged in the vertical gap.

[0013] In the embodiments of the present application, the matching structure between the first rotating shaft and the rotating mechanism seat is improved. The effective control and management of the vertical gap are realized by adding the cover plate at the first rotating shaft. The cover plate and the rotating mechanism seat are fixedly arranged to ensure the stability and reliability during the working process. Meanwhile, a certain vertical gap is formed between the cover plate and the first rotating shaft, and an elastic assembly is arranged in the gap. The addition of the elastic assembly can not only effectively buffer the vertical impact force that may be generated during the rotation of the first rotating shaft, but also compensate for the non-uniformity of the gap caused by the manufacturing error or assembly error to a certain extent, thereby further improving the running stability and noise reduction effect of the entire rotating mechanism.

[0014] In combination with the first aspect, in some implementations of the first aspect, the cover plate forms a cover plate groove capable of covering the first mounting hole, the circumferential edge of the cover plate groove is in close contact with the rotating mechanism seat, a convex portion is arranged at the middle of the cover plate groove, and the elastic assembly is arranged in the groove space formed between the convex portion and the circumferential edge of the cover plate groove.

[0015] In the embodiments of the present application, the cover plate groove can completely cover the first mounting hole, and the circumferential edge thereof is in close contact with the rotating mechanism seat to form a good sealing structure. This design effectively blocks the invasion of external dust, impurities and moisture, protects the key components such as the first rotating shaft and the buffer unit inside from pollution and corrosion, thereby prolonging the service life of these components. Through the design of the convex portion, the installation space of the elastic assembly is optimized, the action range of the elastic member is limited, and the stable action of the elastic element is ensured.

[0016] With reference to the first aspect, in some implementations of the first aspect, the cover plate is arranged above the rotary mechanism base body, the elastic assembly comprises a partition plate arranged at the first rotating shaft, and a first elastic member arranged between the partition plate and the cover plate.

[0017] In the embodiments of the present application, the partition plate supports the first elastic member, and can ensure the vertical gap adjustment effect of the first elastic member.

[0018] With reference to the first aspect, in some implementations of the first aspect, the elastic assembly further comprises a second elastic member arranged between the partition plate and the first rotating shaft.

[0019] In the embodiments of the present application, the second elastic member is arranged between the partition plate and the first rotating shaft, which further enhances the buffering effect. It can absorb the vibration and impact force generated by the first rotating shaft during operation, and reduce the influence of these forces on the entire rotary mechanism.

[0020] With reference to the first aspect, in some implementations of the first aspect, further comprising a locking plate and a fixing member, the fixing member passes through the locking plate to fix the rotary mechanism base body and the cover plate.

[0021] In the embodiments of the present application, the locking plate is arranged above the cover plate, and its main function is to prevent the cover plate from loosening due to vibration during train operation. The locking plate can effectively lock the position of the cover plate by cooperating with the fixing member, so as to prevent loosening and improve the reliability of the connection.

[0022] With reference to the first aspect, in some implementations of the first aspect, a circumferential edge of the cover plate cooperates with the rotary mechanism base body, and a step cooperation structure is formed at the cooperation position of the two.

[0023] In the embodiments of the present application, the cover plate and the rotary mechanism base body are designed as a step cooperation structure, which realizes a more close and stable connection relationship between the two, and significantly improves the overall performance and reliability of the noise reduction rotary mechanism of the hook buffer device.

[0024] With reference to the first aspect, in some implementations of the first aspect, the second rotating shaft is located below the rotary mechanism base body, the second rotating shaft comprises a first shaft body part and a second shaft body part, the radial dimension of the first shaft body part is greater than the radial dimension of the second shaft body part, the second shaft body part is inserted into the second mounting hole, and the gap limiting assembly comprises a third elastic member arranged at the first shaft body part and the rotary mechanism base body.

[0025] In the embodiments of the present application, a scheme for installing the gap limiting assembly at the second rotating shaft is further provided, which simplifies the structure of the gap limiting assembly compared with the scheme for installing the gap limiting assembly at the first rotating seat. The third elastic member is installed in the plane where the rotating direction of the slewing mechanism is located, and the vertical gap is relieved through the elastic action of the third elastic member.

[0026] In combination with the first aspect, in some implementations of the first aspect, the second mounting hole includes a first hole diameter section matching the radial dimension of the first shaft body part, and a second hole diameter section matching the radial dimension of the second shaft body part, the first shaft body part is inserted into the first hole diameter section, and the second shaft body part is inserted into the second hole diameter section.

[0027] In the embodiments of the present application, by designing the second mounting hole as two hole diameter sections with different radial dimensions, the first shaft body part and the second shaft body part can be accurately fitted respectively. This design significantly improves the installation accuracy, ensures that the first shaft body part and the second shaft body part can be quickly and accurately positioned during installation, and reduces the risk of uneven gap or component damage caused by installation errors.

[0028] In the second aspect, the embodiments of the present application provide a vehicle including the noise reduction slewing mechanism of the hook buffer device provided in the first aspect of the present application.

[0029] It can be seen from the above technical solutions that some of the additional aspects and advantages of the present application will be given in the following description, some will become apparent from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a schematic diagram of the structure of the hook buffer device in the prior art;

[0031] Figure 2 is a schematic diagram of the structure of the hook buffer device in the prior art;

[0032] Figure 3 is a perspective view of the noise reduction slewing mechanism of the hook buffer device according to the embodiments of the present application;

[0033] Figure 4 is a cross-sectional view of the first embodiment of the noise reduction slewing mechanism of the hook buffer device according to the embodiments of the present application;

[0034] Figure 5 is a cross-sectional view of the second embodiment of the noise reduction slewing mechanism of the hook buffer device according to the embodiments of the present application;

[0035] In the above figures:

[0036] 1, slewing mechanism seat body, 101 first mounting hole, 102, second mounting hole;

[0037] 2. First rotation axis;

[0038] 3. Second rotating shaft; 301. First shaft body; 302. Second shaft body;

[0039] 4. Buffer housing;

[0040] 5. Buffer unit;

[0041] 6. Force transmission shaft;

[0042] 7. Cover plate; 701. Cover plate groove; 702. Protrusion;

[0043] 8. Partition;

[0044] 9. First elastic element;

[0045] 10. Second elastic element;

[0046] 11. Third elastic element;

[0047] 12. Anti-loosening board;

[0048] 13. Fasteners; Detailed Implementation

[0049] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0050] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," 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, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication 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 utility model according to the specific circumstances.

[0051] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0052] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in the specification and the features of different embodiments or examples without contradiction.

[0053] In the following, the present application is described in detail by exemplary embodiments. However, it should be understood that the elements, structures and features in one embodiment can also be beneficially combined into other embodiments without further description.

[0054] The EFG buffer is a widely used buffer device for rail transit vehicles, mainly used to absorb the impact energy generated by the train during normal operation and coupling. The core element of the EFG buffer is three sets of annular rubber buffer components, each set consisting of two semicircular rubber blocks. The entire device also includes a mandrel, a buffer housing (including an upper housing and a lower housing), and a rotating shaft and other components.

[0055] Figure 1 And Figure 2 As shown in the prior art EFG buffer structure.

[0056] The buffer housing 4 part includes an upper housing unit and a lower housing unit, and three rubber buffer components between the two housing units, which are used as buffer units 5. When the force transmission rod 6 is subjected to force, the rubber buffer assembly will be compressed to absorb energy.

[0057] The buffer housing 4 part needs to be installed to the rotating mechanism seat body 1. The rotating mechanism seat body 1 oppositely forms a first installation hole 101 and a second installation hole 102; a gap is formed between the first installation hole 101 and the second installation hole 102, the buffer unit is integrally installed in the gap, and is adaptively installed with the two installation holes through the first rotating shaft 2 and the second rotating shaft 3 respectively. The EFG buffer is adaptively installed with the vehicle through the rotating mechanism seat body 1 part.

[0058] Due to the assembly gap between the two rotating shafts and the rotating mechanism installation seat, and the rotating shaft and the buffer housing, vertical relative motion is also generated between the three under the actual working condition of train operation, which affects the operation performance of the product.

[0059] To solve the above problems, the first aspect of the present application provides a hook buffer device noise reduction rotating mechanism. On the basis of the existing EFG buffer main body structure, a vertical gap limiting component is installed at the first rotating shaft 2 and / or the second rotating shaft 3, which is used to limit the vertical gap at the fitting position of the rotating assembly (including the first rotating shaft 2, the second rotating shaft 3), the buffer housing 4 and the rotating mechanism seat body 1.

[0060] In the embodiment of the present application, the gap limiting component has the function of adjusting the vertical gap, and can adopt various forms of structures, preferably a component structure with elasticity. By setting the vertical gap limiting component, the vertical gap that may be generated between the rotating components is limited. Here, the rotating components include but are not limited to the first rotating shaft 2, the second rotating shaft 3, the buffer housing 4 and the rotating mechanism seat body 1.

[0061] It should be understood that considering the working process of the hook buffer device noise reduction rotating mechanism, vertical gaps may be generated at the fitting positions of multiple rotating components. According to the actual design requirements, the vertical gap limiting component can be selectively set at the first rotating shaft 2 and the second rotating shaft 3, or the vertical gap limiting component can be set at both the first rotating shaft 2 and the second rotating shaft 3. In the vehicle operation, the vertical motion of the rotating mechanism is limited.

[0062] In some embodiments, referring to Figure 4 , the gap limiting component includes a cover plate 7 installed on the side of the first rotating shaft 2, the cover plate 7 is fixedly installed with the rotating mechanism seat body 1, a vertical gap is formed between the cover plate 7 and the first rotating shaft 2, and an elastic component is installed in the vertical gap.

[0063] It should be understood that the cover plate 7 can be connected between the fixing member 8 and the rotary mechanism base body 1 through the fixing member, and the first rotating shaft 2 is limited and fixed between the cover plate 7 and the rotary mechanism base body 1. This is different from the mounting structure between the first rotating shaft 2 and the rotary mechanism base body 1 in the prior art. The radial dimension of the middle section of the first rotating shaft 2 is greater than the radial dimension of the two axial ends thereof, and the side cooperating with the bumper shell 4 can be clamped in the groove structure on the surface of the bumper shell 4, so as to avoid the shaking of the first rotating shaft 2.

[0064] In the embodiment of the present application, the cooperation structure between the first rotating shaft 2 and the rotary mechanism base body 1 is improved. By adding the cover plate 7 at the first rotating shaft 2, the vertical gap is effectively controlled and managed. The cover plate 7 and the rotary mechanism base body 1 are fixedly mounted, which ensures the stability and reliability in the working process. At the same time, a certain vertical gap is formed between the cover plate 7 and the first rotating shaft 2, and an elastic component is installed in the gap. The compression deformation of the elastic component can solve the problem of the vertical gap, not only effectively buffer the vertical impact force that may be generated in the rotating process of the first rotating shaft 2, but also compensate for the non-uniformity of the gap caused by manufacturing errors or assembly errors to some extent, thereby further improving the running stability and noise reduction effect of the entire rotary mechanism.

[0065] In some embodiments, in order to provide installation space for the elastic component, a cover plate groove 701 is formed in the cover plate 7, and the size of the cover plate groove 701 can cover the first mounting hole 101, so that a good sealing structure is formed between the cover plate 7 and the rotary mechanism base body 1. The circumferential edge of the cover plate groove 701 is attached to the rotary mechanism base body 1, and the middle part of the cover plate groove 701 is provided with a protruding part 702, and the elastic component is located in the groove space formed between the protruding part 702 and the circumferential edge of the cover plate groove. The height of the protruding part 702 can be attached to the surface of the first rotating shaft 2, or a certain gap can be formed between the surface of the first rotating shaft 2.

[0066] Based on the above structure, the annular groove is formed between the protruding part 702 and the circumferential edge of the cover plate groove 701, which can better limit the position of the elastic component, optimize the installation space of the elastic component, limit the action range of the elastic component, and further ensure the stable action of the elastic component.

[0067] In some embodiments, the cover plate 7 is arranged above the rotary mechanism base body 1, that is, the first rotating shaft 2 is located in the upper part of the rotary mechanism base body 1 in the embodiment, and the cooperation structure between the rotary components in the upper part of the rotary mechanism is fastened to limit the vertical gap.

[0068] In some embodiments, the elastic assembly comprises a partition plate 8 arranged at the first rotating shaft 2, and a first elastic member 9 arranged between the partition plate 8 and the cover plate. The compression effect of the first elastic member 9 can reduce the influence of the vertical gap, and the partition plate 8 supports the first elastic member to ensure the vertical gap adjustment effect of the first elastic member 8.

[0069] In some embodiments, the elastic assembly further comprises a second elastic member 10 arranged between the partition plate 8 and the first rotating shaft 2. The second elastic member 10 is arranged between the partition plate and the first rotating shaft 9, further enhancing the buffering effect. It can absorb the vibration and impact force generated by the first rotating shaft 2 during operation, reducing the influence of these forces on the entire rotary mechanism.

[0070] Reference Figure 3 In some embodiments, a locking plate 12 and a fixing member 13 are further included, and the fixing member 3 passes through the locking plate 13 to fix the rotary mechanism seat body 1 and the cover plate 7.

[0071] In the embodiments of the present application, the locking plate 13 is arranged above the cover plate 7, and its main function is to prevent the cover plate 7 from loosening due to vibration during train operation. The locking plate 13 can effectively lock the position of the cover plate 7 by cooperating with the fixing member 14, preventing it from loosening, thereby improving the reliability of the connection.

[0072] In some embodiments, the circumferential edge of the cover plate 7 cooperates with the rotary mechanism seat body, and the cooperation between the two forms a stepped cooperation structure. This structure can ensure a more close and stable connection between the two, significantly improving the overall performance and reliability of the noise reduction rotary mechanism of the hook buffer device.

[0073] Reference Figure 5 In some embodiments, the second rotating shaft 3 is located below the rotary mechanism seat body and is fixedly installed with the buffer shell 4. The second rotating shaft 3 comprises a first shaft body part 301 and a second shaft body part 302, the radial dimension of the first shaft body part 301 is greater than the radial dimension of the second shaft body part 302, the second shaft body part 302 is inserted into the second mounting hole 102, and the gap limiting assembly comprises a third elastic member 11 arranged at the first shaft body part 301 and the rotary mechanism seat body and the cooperation surface.

[0074] In the embodiments of the present application, a scheme for installing a gap limiting assembly at the second rotating shaft 3 is further provided. Compared with the scheme for installing a gap limiting assembly at the first rotating shaft 2, the structure of the gap limiting assembly is simplified. The third elastic member 11 is installed in the plane where the rotary mechanism rotates, and the vertical gap is relieved by the elastic effect of the third elastic member 11.

[0075] In some embodiments, the second mounting hole 102 comprises a first hole diameter section matching the radial dimension of the first shaft body part 301, and a second hole diameter section matching the radial dimension of the second shaft body part 302, the first shaft body part is inserted into the first hole diameter section, and the second shaft body part is inserted into the second hole diameter section. By designing the second mounting hole as two hole diameter sections with different radial dimensions, the first shaft body part 301 and the second shaft body part 302 can be accurately fitted respectively, and the reliability of the assembly therebetween is improved.

[0076] In some embodiments, a gap adjustment assembly can also be arranged at the positions of the first rotating seat 2 and the second rotating seat 3.

[0077] In the second aspect, the embodiments of the present application provide a vehicle comprising the noise reduction rotating mechanism of the hook and damper device provided in the first aspect of the present application. The rotating mechanism seat body 1 is partially mounted to the first vehicle, and the force transmission shaft 6 is partially mounted to the second vehicle. Compared with the buffer in the prior art, the rotating mechanism with the added vertical gap adjustment assembly can adjust the influence of the vertical gap between the rotating assemblies on the overall performance of the buffer.

[0078] Although the embodiments of the present application have been shown and described above, it should be understood that the above-mentioned embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above-mentioned embodiments within the scope of the present application.

Claims

1. A noise reducing swing mechanism for a hook and line device, characterized by, include: Rotary mechanism base: It has a first mounting hole and a second mounting hole formed on it; Buffer mechanism: installed in the seat accommodating space formed between the first mounting hole and the second mounting hole, including a buffer housing and a buffer unit located inside the buffer housing; Rotary assembly: includes a first rotating shaft and a second rotating shaft, wherein the first rotating shaft is rotatably mounted to the buffer housing at a first mounting hole; and the second rotating shaft is rotatably mounted to the buffer housing at a second mounting hole. A vertical clearance limiting component is installed at the first rotating shaft and / or the second rotating shaft to limit the vertical clearance at the mating point between the rotating assembly, the buffer housing, and the rotating mechanism seat.

2. The hool-catch device noise reducing swivel mechanism of claim 1, wherein, The gap limiting component includes a cover plate installed on the side of the first rotating shaft. The cover plate is fixedly installed with the rotating mechanism seat. A vertical gap is formed between the cover plate and the first rotating shaft. An elastic component is installed in the vertical gap.

3. The hool-catch device noise reducing swivel mechanism of claim 2, wherein, The cover plate forms a cover plate groove that can cover the first mounting hole; the circumferential edge of the cover plate groove fits against the rotating mechanism seat, and a protrusion is provided in the middle of the cover plate groove. The elastic component is located in the groove space formed between the protrusion and the circumferential edge of the cover plate groove.

4. A noise reducing swivel mechanism for a hook and cable arrangement according to claim 2 or 3, characterized in that The cover plate is disposed above the rotating mechanism seat, and the elastic component includes a partition plate disposed at the first rotating shaft, and a first elastic element disposed between the partition plate and the cover plate.

5. The hool-cushion noise reduction swivel mechanism of claim 4 wherein, The elastic component also includes a second elastic element disposed between the partition and the first rotating shaft.

6. The hool-cushion noise reduction swivel mechanism of claim 2 wherein, It also includes an anti-loosening plate and a fastener, the fastener passing through the anti-loosening plate to fix the rotating mechanism seat to the cover plate.

7. The hawser noise reduction swivel of claim 2 or 6, wherein The circumferential edge of the cover plate mates with the base of the rotary mechanism, and the mating point between the two forms a stepped mating structure.

8. The hawser noise reduction swivel of claim 1 or 2, wherein, The second rotating shaft includes a first shaft body and a second shaft body. The radial dimension of the first shaft body is greater than the radial dimension of the second shaft body. The second shaft body is inserted into the second mounting hole. The gap limiting component includes a third elastic element disposed at the mating surface between the first shaft body and the rotating mechanism seat.

9. The hool-cushion noise reduction swivel mechanism of claim 8 wherein, The second rotating shaft is located below the base of the rotary mechanism.

10. A vehicle characterized by comprising: The noise reduction rotary mechanism of the hook-and-slow device as described in any one of claims 1 to 9.

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