A high-precision braking transmission structural component for a track traction system

By designing ball grooves and lifting sleeve structures on the track gearbox, and combining them with auxiliary tools such as U-blocks and rubber sleeves, the problem of position alignment during gearbox installation was solved, enabling a fast and convenient installation process.

CN224453614UActive Publication Date: 2026-07-03CHANGZHOU JIEJIEGAO ELECTRONICS TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU JIEJIEGAO ELECTRONICS TECH CO LTD
Filing Date
2025-08-15
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The existing track gearbox is difficult to move during installation due to its weight, making it difficult to align the connection holes with the mounting holes, which affects the speed of installation.

Method used

A high-precision braking transmission structure for a track traction system was designed. It adopts a ball groove and lifting sleeve structure, and the position is calibrated by moving the ball. The gearbox is quickly fixed by auxiliary tools such as U-blocks, rubber sleeves, pin holes and fixing screws.

Benefits of technology

It enables rapid installation of the gearbox. The combination of ball grooves and lifting sleeve simplifies the alignment process of the connection holes, improving installation efficiency and convenience.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224453614U_ABST
    Figure CN224453614U_ABST
Patent Text Reader

Abstract

This utility model provides a high-precision braking transmission structure for a track traction system, relating to the field of track traction technology. The high-precision braking transmission structure includes a gearbox with fixed blocks at its four corners. After the gearbox is moved to the installation position, the movable balls in the ball grooves on the bottom surface of the lifting sleeve abut against the surface of the installation position, thus supporting the gearbox. The movable balls then push the gearbox to calibrate its position, facilitating symmetry between the connecting hole and the external mounting hole, and enabling subsequent bolt fixing of the gearbox. After the bolts are passed through the connecting hole, the threaded lifting sleeve can be rotated, causing it to rise. The rising lifting sleeve disengages the movable balls from the surface of the installation position, bringing the bottom surface of the gearbox abutting against the surface of the installation position, where it can then be fixed with bolts. This facilitates rapid gearbox installation.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This application relates to the field of track traction technology, and in particular to a high-precision braking transmission structure for track traction systems. Background Technology

[0002] Rail traction is one of the core technologies in the rail transit field. It refers to the conversion of energy into the power for vehicle forward movement or braking through a specific power device and transmission system, so as to realize the traction operation and speed control of rail vehicles (such as high-speed rail, subway, train, etc.). The rail gearbox is the core component of the rail vehicle drive system. It converts the high speed and low torque of the traction motor into the low speed and high torque suitable for wheel rotation, so that the vehicle can obtain sufficient traction force and appropriate operating speed.

[0003] Orbital gearboxes are generally heavy and require auxiliary tools to move. After placing the gearbox at the installation site, bolts are needed to secure it. However, the connection holes of the gearbox and the connection holes at the installation site may be misaligned. In this case, the gearbox needs to be moved. Due to its weight, moving the gearbox is inconvenient and not conducive to quick installation. Utility Model Content

[0004] This application provides a high-precision braking transmission structure for a track traction system to solve the problems of track traction.

[0005] This application provides a high-precision braking transmission structure for a track traction system, including a gearbox, fixed bait blocks are fixedly connected to the four corners of the gearbox, and a connecting hole is opened on the top surface of the fixed bait block. A threaded sleeve is provided above the fixed bait block, and a threaded groove is opened inside the threaded sleeve. A lifting sleeve is threadedly connected inside the threaded groove, and a ball groove is opened on the bottom surface of the lifting sleeve. A movable ball is rotatably connected inside the ball groove.

[0006] After the gearbox is moved to the installation position, the moving balls in the ball groove on the bottom surface of the lifting sleeve will abut against the surface of the installation position, thus supporting the gearbox. At this time, the moving balls can push the gearbox to calibrate its position, making it easy to align the connecting hole with the external mounting hole, which is convenient for fixing the gearbox with bolts later. After the bolts are passed through the connecting hole, the threaded lifting sleeve can be rotated, causing the lifting sleeve to rise. The rising lifting sleeve will cause the moving balls to disengage from the surface of the installation position, so that the bottom surface of the gearbox abuts against the surface of the installation position. Then, it can be fixed with bolts, which facilitates the quick installation of the gearbox.

[0007] Preferably, a U-shaped block is fixedly connected to the top end of the lifting sleeve;

[0008] By setting up U-shaped blocks, the lifting sleeve can be rotated with the assistance of the U-shaped blocks when it is necessary to rotate, which improves the convenience of operation and makes it easier to carry out the operation.

[0009] Preferably, the sidewalls of the U-shaped block are fitted with rubber sleeves;

[0010] By adding a rubber sleeve, the flexibility of the U-shaped block sidewall is improved, thereby increasing the comfort when rotating the lifting sleeve.

[0011] Preferably, the side wall of the lifting sleeve is provided with multiple pin holes;

[0012] By setting a pin hole, when it is necessary to rotate the lifting sleeve, a slide bar of the corresponding size can be slid into the pin hole to form a push handle, which assists in rotating the lifting sleeve and improves the convenience of operation.

[0013] Preferably, the side wall of the threaded sleeve is provided with a set screw hole, and the internal thread of the set screw hole is connected with a fixing set screw;

[0014] By setting a fixing screw, after adjusting the position of the lifting sleeve, the fixing screw can be rotated to move to one side of the lifting sleeve. When one end of the fixing screw abuts against the side wall of the lifting sleeve, the lifting sleeve can be fixed.

[0015] Preferably, a strip block is fixedly connected to one end of the fixing screw;

[0016] By setting up a strip block, turning the strip block can drive the fixing screw to rotate, making it easy to fix the lifting sleeve.

[0017] Preferably, the sidewall of the rubber sleeve is provided with a strip groove;

[0018] By setting the grooves, the roughness of the rubber sleeve sidewall is increased, the friction is improved, and the lifting sleeve is easier to rotate.

[0019] Beneficial effects:

[0020] Considering the issue of track traction, after the gearbox is moved to the installation position, the movable balls in the ball groove on the bottom surface of the lifting sleeve will abut against the surface of the installation position, thereby supporting the gearbox. At this time, the movable balls can push the gearbox to perform position calibration, making it easy to align the connecting hole with the external mounting hole, which facilitates the subsequent bolt fixing of the gearbox. After the bolt is passed through the connecting hole, the threaded lifting sleeve can be rotated, causing the lifting sleeve to rise. The rising lifting sleeve will cause the movable balls to disengage from the surface of the installation position, so that the bottom surface of the gearbox abuts against the surface of the installation position, and then it can be fixed with bolts, which facilitates the quick installation of the gearbox.

[0021] The above description is merely an overview of the technical solutions of the embodiments of this application. In order to better understand the technical means of the embodiments of this application and to implement them in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the embodiments of this application more obvious and understandable, specific implementation methods of this application are described below. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of a high-precision braking transmission structure for a track traction system according to the present invention.

[0024] Figure 2 This is one of the side view schematic diagrams of a high-precision braking transmission structure for a track traction system according to this utility model;

[0025] Figure 3 for Figure 2 Enlarged structural diagram of section A in the middle;

[0026] Figure 4 This is the second side view schematic diagram of a high-precision braking transmission structure for a track traction system according to this utility model;

[0027] Figure 5 for Figure 4 Enlarged structural diagram of section B in the middle.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Gearbox; 2. Fixed bait block; 3. Connecting hole; 4. Threaded sleeve; 5. Threaded groove; 6. Lifting sleeve; 7. Ball groove; 8. Moving ball; 9. U-shaped block; 10. Rubber sleeve; 11. Pin hole; 12. Set screw hole; 13. Fixed set screw; 14. Strip block; 15. Strip groove. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims and drawings of this application are intended to cover non-exclusive inclusion.

[0032] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0033] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. For example, in the description of this application, terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures. They are used only for the convenience of describing this application 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 application.

[0034] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, "connection" or "joining" in mechanical structures can refer to a physical connection, such as a fixed connection, for example, a connection fixed by fasteners, such as a connection fixed by screws, bolts, or other fasteners; a physical connection can also be a detachable connection, such as a snap-fit ​​or interlocking connection; a physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0035] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0036] This utility model provides, for example Figure 1-5The high-precision braking transmission structure for a track traction system shown includes a gearbox 1. Fixed blocks 2 are fixedly connected to the four corners of the gearbox 1, and the top surface of each fixed block 2 has a connecting hole 3. A threaded sleeve 4 is located above each fixed block 2, and the threaded sleeve 4 has a threaded groove 5 inside. A lifting sleeve 6 is threadedly connected inside the threaded groove 5, and a ball groove 7 is formed on the bottom surface of the lifting sleeve 6. A movable ball 8 is rotatably connected inside the ball groove 7. After the gearbox 1 is moved to the installation position, the movable ball 8 in the ball groove 7 on the bottom surface of the lifting sleeve 6 will move with the installation position. The surfaces of the gearbox 1 are aligned, thus supporting the gearbox 1. At this time, the gearbox 1 can be aligned by moving the ball bearing 8, making it easier to make the connecting hole 3 symmetrical with the mounting hole for mounting external components. This facilitates the subsequent fixing of the gearbox 1 with bolts. After the bolts are passed through the connecting hole 3, the lifting sleeve 6 connected by the threaded groove 5 can be rotated, causing the lifting sleeve 6 to rise. The rising lifting sleeve 6 will cause the moving ball bearing 8 to disengage from the mounting surface, so that the bottom surface of the gearbox 1 abuts against the mounting surface. Then, it can be fixed with bolts, which facilitates the quick installation of the gearbox 1.

[0037] In this utility model, a U-shaped block 9 is fixedly connected to the top of the lifting sleeve 6; by setting the U-shaped block 9, when it is necessary to rotate the lifting sleeve 6, the U-shaped block 9 can be used to assist in rotating the lifting sleeve 6, thereby improving the convenience of operation and making it easier to operate.

[0038] In this invention, a rubber sleeve 10 is provided on the side wall of the U-shaped block 9; by providing the rubber sleeve 10, the flexibility of the side wall of the U-shaped block 9 is improved, thereby improving the comfort when rotating the lifting sleeve 6.

[0039] In this utility model, the side wall of the lifting sleeve 6 is provided with multiple pin holes 11; by providing pin holes 11, when it is necessary to rotate the lifting sleeve 6, a slide bar of the corresponding size of the pin hole 11 can be slid into the pin hole 11 to form a push handle to assist in rotating the lifting sleeve 6 and improve the convenience of operation.

[0040] In this utility model, the side wall of the threaded sleeve 4 is provided with a set screw hole 12, and the internal thread of the set screw hole 12 is connected to a fixed set screw 13; by setting the fixed set screw 13, after the position of the lifting sleeve 6 is adjusted, the fixed set screw 13 can be rotated to move the fixed set screw 13 to one side of the lifting sleeve 6. When one end of the fixed set screw 13 abuts against the side wall of the lifting sleeve 6, the lifting sleeve 6 can be fixed.

[0041] In this utility model, a strip block 14 is fixedly connected to one end of the fixing screw 13; by setting the strip block 14, turning the strip block 14 can drive the fixing screw 13 to rotate, which facilitates fixing the lifting sleeve 6.

[0042] In this utility model, the side wall of the rubber sleeve 10 is provided with a strip groove 15; by setting the strip groove 15, the roughness of the side wall of the rubber sleeve 10 will be increased, the friction will be increased, and the lifting sleeve 6 will be easier to rotate.

[0043] Working principle: When using this high-precision braking transmission structure for a track traction system, after the gearbox 1 is moved to the installation position, the movable ball 8 in the ball groove 7 on the bottom surface of the lifting sleeve 6 will abut against the surface of the installation position, thereby supporting the gearbox 1. At this time, the movable ball 8 can push the gearbox 1 to perform position calibration, making it convenient to align the connecting hole 3 with the external mounting hole, which facilitates the subsequent bolt fixing of the gearbox 1. After the bolt is passed through the connecting hole 3, the lifting sleeve 6 connected by the threaded groove 5 can be rotated, causing the lifting sleeve 6 to rise. The rising lifting sleeve 6 will cause the movable ball 8 to disengage from the surface of the installation position, so that the bottom surface of the gearbox 1 abuts against the surface of the installation position, and then it can be fixed with bolts, which facilitates the quick installation of the gearbox 1.

[0044] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A high-precision braking transmission structural member for a rail traction system, comprising a gear box (1), characterized in that: The gearbox (1) is fixedly connected to four corners with fixed bait blocks (2), and the top surface of the fixed bait blocks (2) is provided with connecting holes (3). The fixed bait blocks (2) are provided with threaded sleeves (4) above them, and the threaded sleeves (4) are provided with threaded grooves (5) inside. The threaded grooves (5) are threadedly connected to lifting sleeves (6), and the bottom surface of the lifting sleeves (6) is provided with ball grooves (7). The ball grooves (7) are rotatably connected to movable balls (8).

2. The high-precision braking transmission structural member for a rail traction system according to claim 1, characterized in that: A U-shaped block (9) is fixedly connected to the top of the lifting sleeve (6).

3. The high-precision braking transmission structural member for a rail traction system according to claim 2, characterized in that: The sidewall of the U-shaped block (9) is fitted with a rubber sleeve (10).

4. The high-precision braking transmission structural member for a rail traction system according to claim 1, characterized in that: The side wall of the lifting sleeve (6) is provided with multiple pin holes (11).

5. The high-precision braking transmission structural member for a rail traction system according to claim 1, characterized in that: The side wall of the threaded sleeve (4) is provided with a set screw hole (12), and the internal thread of the set screw hole (12) is connected with a fixed set screw (13).

6. The high-precision braking transmission structural member for a rail traction system according to claim 5, characterized in that: One end of the fixing screw (13) is fixedly connected to a strip block (14).

7. The high-precision braking transmission structural member for a rail traction system according to claim 3, characterized in that: The side wall of the rubber sleeve (10) is provided with a strip groove (15).