A clamping and rotating mechanism for bogie front cover

Abstract

This utility model discloses a clamping and rotating mechanism for bogie front covers, including a rotating cleaning platform, a clamping assembly, and a self-driven rotating assembly. The rotating cleaning platform includes a central rotating component and multiple support arms surrounding and fixed to the central rotating component. The clamping assembly is rotatably connected to each of the support arms for clamping the bogie front cover and is driven to rotate circumferentially by the central rotating component, thus delivering the corresponding bogie front cover directly below the cleaning nozzle. The self-driven rotating assembly is installed on each of the support arms near the bogie front cover and can drive the clamping assembly to rotate circumferentially, cleaning the bogie front cover from all sides. This utility model significantly improves the cleaning efficiency of bogie front covers through automatic clamping and rotating functions, reduces manual intervention, and lowers operational complexity; moreover, this utility model has a simple structure and is easy to implement.

Description

Technical Field

[0001] This utility model relates to a clamping and rotating mechanism suitable for the front cover of a bogie, belonging to the field of rail transit technology. Background Technology

[0002] In the process of fixing the front cover of railway freight car bogies before cleaning and decontamination, manual operation is still the primary method, supplemented by electric or pneumatic tools. Currently, there is no mechanism for clamping the bogie front cover before cleaning and decontamination, rotating the front cover during cleaning, and rotating the clamping assembly after cleaning to allow the next front cover to be cleaned. Although other industries have similar fixing needs, they mostly use direct fixing methods, using robotic arms equipped with cleaning nozzles to clean the front cover from multiple angles.

[0003] The existing fixed-function mechanisms have the following defects: (1) In the commonly used fixed form, the position of the bogie front cover cannot be adjusted after it is fixed. However, in the actual process of cleaning the front cover with the cleaning nozzle equipped by the robotic arm, the position of the nozzle changes with the fine adjustment and change of various parameters, which requires adjustment and correction, and the process is long. (2) In the commonly used fixed form, the robotic arm needs to adjust the position of the nozzle to ensure that the nozzle is parallel to the cleaning plane during the cleaning process, which requires high control. (3) In the commonly used fixed form, after cleaning a front cover, it is necessary to manually replace the front cover, which is time-consuming and labor-intensive. Summary of the Invention

[0004] The purpose of this utility model is to provide an automatic clamping and rotating mechanism suitable for bogie front covers. It can automatically clamp and fix the bogie front cover before cleaning and decontamination. During the cleaning process, the front cover rotates on its own. After cleaning, the clamping component rotates to allow the next front cover to be cleaned. The operation is simple.

[0005] This utility model is achieved according to the following technical solution:

[0006] A clamping and rotating mechanism for a bogie front cover, comprising:

[0007] A rotary cleaning platform includes a central rotating component and multiple support arms surrounding and fixed to the central rotating component;

[0008] The clamping assembly is rotatably connected to each of the support arms and is used to clamp the front cover of the bogie. The central rotating component drives the clamping assembly to rotate circumferentially, so as to send the corresponding front cover of the bogie directly below the cleaning nozzle.

[0009] The self-driven rotating assembly is installed on each of the support arms and near the front cover of the bogie, which can drive the clamping assembly to rotate circumferentially and clean the front cover of the bogie from all sides.

[0010] In some embodiments, the clamping assembly includes:

[0011] A rotating component, connected to the self-driven rotating component, is used to drive the rotating component to rotate circumferentially on the support arm;

[0012] A support platform is fixed at the central area of ​​the rotating component and can rotate circumferentially with the rotating component. The front cover of the bogie is placed on the support platform.

[0013] A gripper assembly, connected to the rotating assembly, is used to secure the bogie front cover to the support platform.

[0014] In some embodiments, the gripper assembly includes:

[0015] Multiple grippers surround the support platform;

[0016] The telescopic component consists of a cylinder and a telescopic rod, wherein the cylinder is fixed together with the rotating assembly;

[0017] The telescopic rod is connected to the multiple grippers via the linkage assembly. The telescopic rod's extension and retraction movement drives the four grippers to move synchronously, completing the tightening and unfolding actions.

[0018] In some embodiments, the linkage assembly includes:

[0019] A double-ear plate support is arranged around the support platform and connected to the rotating component. Each double-ear plate support corresponds to one gripper, and the gripper is hinged to the double-ear plate support.

[0020] The first link includes a central connecting block and a double-eared hinge seat I extending outwards from the central connecting block. The central connecting block is connected to the telescopic rod, and one double-eared hinge seat I corresponds to one gripper.

[0021] The second connecting rod consists of a single-ear plate hinge seat and a double-ear plate hinge seat II. The single-ear plate hinge seat is hinged to the double-ear plate hinge seat I, and the double-ear plate hinge seat II is hinged to the gripper. The telescopic rod extends from the cylinder body and drives the central connecting block to move vertically upward, which in turn drives the gripper to rotate around its hinge point toward the front cover of the bogie through the second connecting rod, thereby clamping the front cover of the bogie.

[0022] In some embodiments, the gripper is provided with a serrated rubber pad at the part that contacts the front cover of the bogie.

[0023] In some embodiments, the support platform includes:

[0024] Multiple support rods, the bottom of which are fixed to the rotating component and extend outward perpendicularly to the rotating component, are located on the same circumference with the center of the rotating component as the center;

[0025] The working platform is fixed on multiple support rods, and the bogie front cover is placed on the working platform, which can be adapted to multiple models of bogie front covers.

[0026] In some embodiments, the self-driven rotating assembly includes:

[0027] The outer casing is fixed to the support arm;

[0028] The motor, right-angle commutator, and gear I are installed in the housing and connected together. Gear I meshes with gear II on the rotating assembly. After the motor rotates, it drives the rotating assembly to rotate on the turntable at the end of the support arm through gear I and gear II.

[0029] In some embodiments, the right-angle commutator includes two meshing and vertically arranged bevel gears, the vertically arranged bevel gear is fixed on a horizontally placed motor shaft, the horizontally arranged bevel gear is fixed on a vertically placed rotating shaft, and the horizontally placed gear I is fixed on the rotating shaft.

[0030] In some embodiments, a mechanical limiting component is further included to limit the rotation angle of the clamping component, the mechanical limiting component comprising:

[0031] The base is installed on each of the support arms and near the support component;

[0032] A limiting lever is fixed to the clamping assembly and protrudes from the clamping assembly, and the clamping assembly rotates circumferentially with the clamping assembly;

[0033] A limit stop lever is rotatably mounted on the base, and the limit stop lever can contact the limit lever;

[0034] Limiting pin I and limiting pin II are fixed on the base and located on both sides of the limiting stop bar. Under the action of the limiting lever, the limiting stop bar rotates around the hinge point. The rotation range is limited by limiting pin I and limiting pin II.

[0035] In some embodiments, the central rotating component is provided with three support arms that are 120° apart.

[0036] The beneficial effects of this utility model are:

[0037] (1) This utility model significantly improves the cleaning efficiency of the bogie front cover by using automatic clamping and rotation functions, reduces manual intervention, and lowers the complexity of operation;

[0038] (2) This utility model adopts a modular design, and the components can be flexibly configured. It is applicable to the front cover of various bogie models, which enhances the versatility and adaptability of the equipment.

[0039] (3) This utility model fixes the workpiece by pneumatic means, which ensures the stability and safety of the clamping process, while reducing mechanical wear and extending the service life of the equipment. Attached Figure Description

[0040] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0041] In the attached diagram:

[0042] Figure 1 This is an overall schematic diagram of a clamping and rotating mechanism applicable to the front cover of a bogie according to the present invention;

[0043] Figure 2 This is a schematic diagram of the clamping component of this utility model;

[0044] Figure 3 This is a schematic diagram of the self-driving rotating component of this utility model;

[0045] Figure 4 This is a partial schematic diagram of a clamping and rotating mechanism applicable to the front cover of a bogie according to the present invention;

[0046] Figure 5 This is an overall schematic diagram of the mechanical limiting component of this utility model.

[0047] Attached diagram labels: 1-Clamping assembly, 2-Self-driven rotating assembly, 3-Rotating cleaning platform, 4-Bogie front cover, 5-Workpiece support, 6-Gripper, 7-Rotating assembly, 8-Pneumatic linear motor, 9-Servo motor, 10-Right-angle commutator, 11-Gear I, 12-Mechanical limit component, 13-Double ear plate support, 14-First connecting rod, 15-Second connecting rod, 16-Support rod, 17-Gear II, 18-Limit lever, 19-Limit stop bar, 20-Limit pin I, 21-Limit pin II, 22-Base.

[0048] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0050] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0051] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0052] like Figure 1 As shown, a clamping and rotating mechanism for a bogie front cover includes a rotating cleaning platform 3, a clamping assembly 1, and a self-driven rotating assembly 2. The rotating cleaning platform 3 includes a central rotating component and multiple support arms surrounding and fixed to the central rotating component. The clamping assembly 1 is rotatably connected to each support arm for clamping the bogie front cover 4, and the central rotating component drives the clamping assembly 1 to rotate circumferentially, delivering the corresponding bogie front cover 4 directly below the cleaning nozzle. The self-driven rotating assembly 2 is installed on each support arm and close to the bogie front cover 4, and can drive the clamping assembly 1 to rotate circumferentially to clean the bogie front cover 4 from all sides.

[0053] Further options, such as Figure 1 As shown, the central rotating component has three support arms that are 120° apart. That is, the rotating cleaning platform 3 is equipped with three clamping assemblies 1 and three self-driven rotating assemblies 2. Figure 1 Only one is displayed in the text.

[0054] The following provides a further explanation of the specific structure of the clamping assembly described above.

[0055] like Figure 2As shown, the clamping assembly 1 includes a rotating assembly 7, a support platform, and a gripper assembly; the rotating assembly is connected to the self-driven rotating assembly 2 and is used to drive the rotating assembly to rotate circumferentially on the support arm; the support platform is fixed in the central area of ​​the rotating assembly 7 and can rotate circumferentially with the rotating assembly, and the bogie front cover 4 is placed on the support platform; the gripper assembly is connected to the rotating assembly 7 and is used to fix the bogie front cover 4 on the support platform.

[0056] Further options, such as Figure 2 As shown, the gripper assembly includes multiple grippers 6, a telescopic component, and a linkage assembly; the multiple grippers surround the support platform; the telescopic component (preferably a pneumatic linear motor 8) consists of a cylinder and a telescopic rod, with the cylinder fixed together with the rotating component 7; the telescopic rod is connected to the multiple grippers 6 through the linkage assembly, and the telescopic movement of the telescopic rod drives the four grippers 6 to move synchronously, completing the tightening and unfolding actions.

[0057] Further options, such as Figure 2 As shown, the linkage assembly includes a double-ear plate support 13, a first link 14, and a second link 15. The double-ear plate support 13 surrounds the support platform and is connected to the rotating assembly 7. One double-ear plate support 13 corresponds to one gripper 6, and the gripper 6 is hinged to the double-ear plate support 13. The first link 14 includes a central connecting block and double-ear plate hinge seats I extending outward from the central connecting block. The central connecting block is connected to the telescopic rod, and one double-ear plate hinge seat I corresponds to one gripper 6. The second link 15 consists of a single-ear plate hinge seat and a double-ear plate hinge seat II. The single-ear plate hinge seat is hinged to the double-ear plate hinge seat I, and the double-ear plate hinge seat II is hinged to the gripper 6. The telescopic rod extends from the cylinder body and drives the central connecting block to move vertically upward, thereby driving the gripper 6 to rotate around its hinge point toward the bogie front cover 4 through the second link 15, thereby clamping the bogie front cover 4.

[0058] Further options, such as Figure 2 As shown, the gripper 6 is equipped with a serrated rubber pad at the part that contacts the bogie front cover 4 to prevent damage to the bogie front cover 4.

[0059] Further options, such as Figure 2 As shown, the support platform includes multiple support rods 16 and a working platform 5; the bottom of the multiple support rods 16 is fixed to the rotating assembly 7 and extends outward perpendicularly to the rotating assembly, and the multiple support rods 16 are located on the same circumference with the center of the rotating assembly 7 as the center; the working platform 5 is fixed on the multiple support rods 16, and the bogie front cover 4 is placed on the working platform 5, and can be adapted to multiple models of bogie front covers 4.

[0060] It should be noted that the workpiece support 5 can be adapted to the front cover 4 of the K2 and K6 type bogies.

[0061] The following provides a further explanation of the specific structure of the self-driven rotating assembly described above.

[0062] like Figure 3 , Figure 4 As shown, the self-driven rotating assembly 2 includes a housing, a motor installed in the housing and connected together, a right-angle commutator 10, and a gear I 11; the housing is fixed on the support arm; gear I 11 meshes with gear II 17 on the rotating assembly 7, and after the motor rotates, it drives the rotating assembly 7 to rotate on the turntable at the end of the support arm through gear I 11 and gear II 17.

[0063] In a further embodiment, the right-angle commutator 10 includes two meshing and vertically arranged bevel gears. The vertically arranged bevel gear is fixed on a horizontally placed motor shaft, and the horizontally arranged bevel gear is fixed on a vertically placed rotating shaft. The horizontally placed gear I11 is fixed on the rotating shaft.

[0064] It should be noted that the motor is a servo motor 9, and the servo motor encoder is an absolute encoder.

[0065] like Figure 4 As shown, the mechanical limiting component 12 includes a base 22, a limiting lever 18, a limiting stop 19, a limiting pin I 20, and a limiting pin II 21. The limiting lever 18 is fixed on the clamping assembly, and the limiting stop 19, the limiting pin I 20, and the limiting pin II 21 are fixed on the base 22. The base 22 is fixed to the support arm and close to the clamping assembly 1. Under the action of the limiting lever 18, the limiting stop 19 rotates around the hinge point, and the rotation range is limited by the limiting pin I 20 and the limiting pin II 21.

[0066] The automatic clamping and rotating mechanism for the bogie front cover in this embodiment is implemented as follows:

[0067] (1) When the bogie front cover 4, which has not been cleaned and decontaminated, is placed horizontally on the workpiece support 5, the four grippers 6 are driven synchronously by the precise drive of the pneumatic linear motor 8 to securely clamp the bogie front cover 4. After clamping and fixing, the rotating cleaning platform 3 starts to operate, rotating 120° to send the bogie front cover 4, which has not been cleaned and decontaminated, directly below the cleaning nozzle equipped on the robotic arm. During the cleaning and decontamination of the bogie front cover 4, in order to ensure that its surface can be thoroughly cleaned without dead angles, the self-driven rotating component 2 is activated, driving the bogie front cover 4 to rotate 360°. Every time it rotates a certain angle, the robotic arm will precisely control the cleaning nozzle to efficiently clean the bogie front cover 4 from top to bottom. At the same time, through the position control of the robotic arm, it is ensured that the cleaning nozzle is always perpendicular to the cleaning area, thereby ensuring the thoroughness and uniformity of the cleaning.

[0068] (2) After the cleaning nozzles have completed the cleaning task, the rotating cleaning platform 3 is restarted and rotated 120° to move the bogie front cover 4, which has been cleaned and decontaminated, out of the cleaning area. Then, the grippers 6 release the bogie front cover 4 from the cleaning area, and the workers can easily remove the bogie front cover 4 and place it in the designated storage area for subsequent processing or use.

[0069] In summary, this invention provides an automatic clamping and rotating mechanism for bogie front covers. It automatically clamps and secures the bogie front cover before cleaning and decontamination, rotates automatically during cleaning, and rotates the clamping assembly after cleaning to allow the next front cover to be cleaned. This invention significantly improves the cleaning efficiency of bogie front covers through its automatic clamping and rotating functions, reduces manual intervention, and lowers operational complexity. Furthermore, this invention has a simple structure and is easy to implement.

[0070] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0071] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features found in other embodiments but not others, combinations of features from different embodiments are also within the scope of protection of this invention and form different embodiments. For example, in the embodiments described above, those skilled in the art can use them in combination based on known technical solutions and the technical problems to be solved by this application.

[0072] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A clamping and rotating mechanism suitable for a bogie front cover, characterized in that, include: A rotary cleaning platform includes a central rotating component and multiple support arms surrounding and fixed to the central rotating component; The clamping assembly is rotatably connected to each of the support arms and is used to clamp the front cover of the bogie. The central rotating component drives the clamping assembly to rotate circumferentially, so as to send the corresponding front cover of the bogie directly below the cleaning nozzle. The self-driven rotating assembly is installed on each of the support arms and near the front cover of the bogie, which can drive the clamping assembly to rotate circumferentially and clean the front cover of the bogie from all sides.

2. A clamping and rotating mechanism for a bogie front cover according to claim 1, characterized in that, The clamping assembly includes: A rotating component, connected to the self-driven rotating component, is used to drive the rotating component to rotate circumferentially on the support arm; A support platform is fixed at the central area of ​​the rotating component and can rotate circumferentially with the rotating component. The front cover of the bogie is placed on the support platform. A gripper assembly, connected to the rotating assembly, is used to secure the bogie front cover to the support platform.

3. The clamping and rotating mechanism for a bogie front cover according to claim 2, characterized in that, The gripper assembly includes: Multiple grippers surround the support platform; The telescopic component consists of a cylinder and a telescopic rod, wherein the cylinder is fixed together with the rotating assembly; The telescopic rod is connected to the multiple grippers via the linkage assembly. The telescopic rod's extension and retraction movement drives the four grippers to move synchronously, completing the tightening and unfolding actions.

4. A clamping and rotating mechanism for a bogie front cover according to claim 3, characterized in that, The linkage assembly includes: A double-ear plate support is arranged around the support platform and connected to the rotating component. Each double-ear plate support corresponds to one gripper, and the gripper is hinged to the double-ear plate support. The first link includes a central connecting block and a double-eared hinge seat I extending outwards from the central connecting block. The central connecting block is connected to the telescopic rod, and one double-eared hinge seat I corresponds to one gripper. The second connecting rod consists of a single-ear plate hinge seat and a double-ear plate hinge seat II. The single-ear plate hinge seat is hinged to the double-ear plate hinge seat I, and the double-ear plate hinge seat II is hinged to the gripper. The telescopic rod extends from the cylinder body and drives the central connecting block to move vertically upward, which in turn drives the gripper to rotate around its hinge point toward the front cover of the bogie through the second connecting rod, thereby clamping the front cover of the bogie.

5. A clamping and rotating mechanism for a bogie front cover according to claim 3, characterized in that: The gripper is equipped with a serrated rubber pad at the part that contacts the front cover of the bogie.

6. A clamping and rotating mechanism for a bogie front cover according to claim 2, characterized in that, The support platform includes: Multiple support rods, the bottom of which are fixed to the rotating component and extend outward perpendicularly to the rotating component, are located on the same circumference with the center of the rotating component as the center; The working platform is fixed on multiple support rods, and the bogie front cover is placed on the working platform, which can be adapted to multiple models of bogie front covers.

7. A clamping and rotating mechanism for a bogie front cover according to claim 2, characterized in that, The self-driven rotating assembly includes: The outer casing is fixed to the support arm; The motor, right-angle commutator, and gear I are installed in the housing and connected together. Gear I meshes with gear II on the rotating assembly. After the motor rotates, it drives the rotating assembly to rotate on the turntable at the end of the support arm through gear I and gear II.

8. A clamping and rotating mechanism for a bogie front cover according to claim 7, characterized in that: The right-angle commutator includes two meshing and vertically arranged bevel gears. The vertically arranged bevel gear is fixed on a horizontally placed motor shaft, and the horizontally arranged bevel gear is fixed on a vertically placed rotating shaft. The horizontally placed gear I is fixed on the rotating shaft.

9. A clamping and rotating mechanism for a bogie front cover according to claim 1, characterized in that, It also includes a mechanical limiting component for limiting the rotation angle of the clamping component, the mechanical limiting component comprising: The base is installed on each of the support arms and near the support component; A limiting lever is fixed to the clamping assembly and protrudes from the clamping assembly, and the clamping assembly rotates circumferentially with the clamping assembly; A limit stop lever is rotatably mounted on the base, and the limit stop lever can contact the limit lever; Limiting pin I and limiting pin II are fixed on the base and located on both sides of the limiting stop bar. Under the action of the limiting lever, the limiting stop bar rotates around the hinge point. The rotation range is limited by limiting pin I and limiting pin II.

10. A clamping and rotating mechanism for a bogie front cover according to claim 1, characterized in that: The central rotating component is equipped with three support arms that are 120° apart.

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