Flexible sleeve for fine adjustment of track plate

By using a flexible sleeve design and a universal joint and horn tube structure, the docking range between the sleeve and the fine-tuning claw screw is increased, which solves the problems of connection failure and component damage caused by inaccurate docking in the existing technology, and achieves more efficient track slab fine-tuning.

CN223805359UActive Publication Date: 2026-01-16SHANGHAI CIVIL ENG GRP CO LTD OF CREC +1
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Patent Information

Application Number
CN202520376372.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-05
Publication Date
2026-01-16
Estimated Expiration
2035-03-05

AI Technical Summary

Technical Problem

Existing track slab fine-tuning equipment requires precise alignment when the sliding module drives the sleeve to connect with the screw of the fine-tuning claw. Misalignment can lead to connection failure or component damage.

Method used

The flexible sleeve design includes a drive shaft sleeve, two universal joints, and a flared tube. The flared tube design allows the screw head to slide into the polygonal hole inside the sleeve. The drive shaft sleeve and universal joints transmit the motor torque to the screw, increasing the docking range. The universal joints are protected by a flexible hose.

Benefits of technology

This effectively increases the mating range between the sleeve and the fine-tuning claw screw, avoiding component damage caused by misalignment or collision, and improving the reliability and convenience of adjustment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a flexible sleeve for fine adjustment of a track board. The flexible sleeve comprises a transmission shaft sleeve, a universal transmission joint, a sleeve body and a horn tube. The transmission shaft sleeve is connected to the bottom of the motor output shaft and can rotate along with the motor output shaft; the two universal transmission joints are the first universal transmission joint and the second universal transmission joint, the first universal transmission joint is connected to the bottom of the transmission shaft sleeve and can rotate along with the transmission shaft sleeve, and the second universal transmission joint is connected to the bottom of the first universal transmission joint and can rotate along with the first universal transmission joint. By arranging the two universal transmission joints and arranging the horn tube at the bottom of the sleeve, when the sliding module drives the sleeve to be in butt joint with the screw rod of the fine adjustment claw, the flexible sleeve can be bent so that the head of the screw rod can slide into the inner polygonal hole in the lower end of the sleeve along the inner wall of the horn tube as long as the screw rod is in the diameter range of the opening in the lower end of the horn tube; according to the utility model, the butt joint range of the sleeve and the fine adjustment claw screw rod is enlarged, and the sleeve and the fine adjustment claw screw rod are convenient to butt joint.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model belongs to track board fine adjustment equipment technical field, especially a kind of flexible sleeve for track board fine adjustment. BACKGROUND

[0002] As Figure 5 As shown in figure, the existing track board fine adjustment platform truck adopts sliding module 100 to drive sleeve 200 and is connected with the fine adjustment jaw 400 on track board 300 butt joint, then adopts motor 500 to drive sleeve 200 to drive the screw rod 401 on fine adjustment jaw 400 rotation, to realize the position of track board 300 is fine adjusted.

[0003] But when sliding module 100 drives sleeve 200 and screw rod 401 on fine adjustment jaw 400 butt joint, it needs accurate alignment, if offset occurs, sleeve 200 will not be connected on screw rod 401, fine adjustment jaw 400 cannot be adjusted, or sleeve 200 or fine adjustment jaw 400 is damaged by collision. INVENTION CONTENTS

[0004] In view of the problems in the prior art, the utility model aims at providing a flexible sleeve for track board fine adjustment.

[0005] To solve the above problems, the utility model adopts the following technical scheme:

[0006] A flexible sleeve for track board fine adjustment, including transmission shaft sleeve, universal transmission joint, sleeve and horn pipe;The transmission shaft sleeve is connected at the bottom of motor output shaft and can rotate with the motor output shaft;The universal transmission joint has two, respectively first universal transmission joint and second universal transmission joint, the first universal transmission joint is connected at the bottom of transmission shaft sleeve and can rotate with the transmission shaft sleeve, the second universal transmission joint is connected at the bottom of first universal transmission joint and can rotate with the first universal transmission joint;The sleeve upper end is connected at the bottom of second universal transmission joint and can rotate with the second universal transmission joint, the sleeve lower end is provided with the inner polygonal hole matched with the head of screw rod to drive screw rod rotation;The horn pipe is the hollow pipe of one end big and one end small, and the small opening end is connected at the bottom of sleeve, and the big opening end faces downward.

[0007] Preferably, the universal transmission joint is the air cannon universal sleeve with square head at one end and inner four-square sleeve at the other end, and the square head of first universal transmission joint is inserted into the inner four-square sleeve of second universal transmission joint.

[0008] Preferably, an upper connecting hole matched with the motor output shaft is formed at the center of the upper end of the transmission shaft sleeve, a threaded hole penetrating the side wall of the upper connecting hole transversely is formed on the side wall of the upper connecting hole, and a jackscrew is threadedly connected in the threaded hole; a lower connecting hole matched with the outer diameter of the inner square sleeve is formed at the center of the lower end of the transmission shaft sleeve, the inner square sleeve of the first universal joint is connected in the lower connecting hole, a first pin hole penetrating the side wall of the lower connecting hole transversely is formed on the side wall of the lower connecting hole, a second pin hole penetrating the side wall of the inner square sleeve of the first universal joint transversely is formed on the side wall of the inner square sleeve, and a first pin shaft is inserted in the first pin hole and the second pin hole.

[0009] Preferably, a spring is connected between the top wall of the lower connecting hole and the top wall of the inner square sleeve of the first universal joint, and the first pin hole or the second pin hole is a vertically extending strip-shaped hole.

[0010] Preferably, a third pin hole transversely formed on the square head of the first universal joint, a fourth pin hole penetrating the side wall of the inner square sleeve of the second universal joint transversely is formed on the side wall of the inner square sleeve, and a second pin shaft is inserted in the third pin hole and the fourth pin hole.

[0011] Preferably, a square hole matched with the square head of the universal joint is formed on the top of the sleeve, and the square head of the second universal joint is inserted in the square hole on the top of the sleeve.

[0012] Preferably, a fifth pin hole transversely formed on the square head of the second universal joint, a sixth pin hole penetrating the side wall of the square hole transversely is formed on the side wall of the square hole, and a third pin shaft is inserted in the fifth pin hole and the sixth pin hole.

[0013] Preferably, the inner polygonal hole is an inner square hole, an inner hexagonal hole or an inner dodecagonal hole.

[0014] Preferably, an elastic hose is sleeved outside the transmission shaft sleeve, the universal joint and the sleeve, and the upper end and the lower end of the elastic hose are tightly clamped outside the transmission shaft sleeve and the horn tube by a tie.

[0015] Preferably, the elastic hose is a rubber tube.

[0016] The utility model discloses the beneficial effect of:

[0017] Compared with the prior art, the utility model has the advantages of:

[0018] The utility model discloses a structure is simple, and the flexible sleeve can be bent to make the screw rod head along the inner wall of the horn pipe and slip into the inner polygonal hole of the lower end of the sleeve, and then the torque of the motor output shaft is transmitted to the screw rod through the transmission shaft sleeve, the universal joint and the sleeve, realizes the adjustment to the fine adjustment claw, and the utility model effectively increases the butt joint range of the sleeve and the screw rod of the fine adjustment claw, and the sleeve and the screw rod of the fine adjustment claw are butt jointed. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the structural schematic diagram of the utility model;

[0020] Figure 2 It is the exploded schematic diagram of the utility model parts;

[0021] Figure 3 It is the structural schematic diagram of the utility model only one universal joint part and the screw rod of fine adjustment claw butt joint;

[0022] Figure 4 It is the structural schematic diagram of the utility model part and the screw rod of fine adjustment claw butt joint;

[0023] Figure 5 It is the structural schematic diagram of prior art.

[0024] In the drawing: 1, transmission shaft sleeve;11, upper connecting hole;111, screw hole;112, jackscrew;12, lower connecting hole;121, first pin hole;2, universal joint;21, square head;211, third pin hole;212, fifth pin hole;22, inner square sleeve;221, second pin hole;222, fourth pin hole;3, sleeve;31, inner polygonal hole;32, square hole;321, sixth pin hole;4, horn pipe;5, spring;6, elastic hose;7, tie;100, sliding module;200, sleeve;300, track plate;400, fine adjustment claw;401, screw rod;500, motor. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] As Figures 1-4As shown, the utility model provides a kind of technical scheme: a flexible sleeve for track board fine adjustment, including transmission shaft sleeve 1, universal transmission joint 2, sleeve 3 and horn tube 4;The transmission shaft sleeve 1 is connected in motor output shaft bottom and can rotate with motor output shaft;Universal transmission joint 2 has two, respectively first universal transmission joint and second universal transmission joint, the first universal transmission joint is connected in transmission shaft sleeve 1 bottom and can rotate with transmission shaft sleeve 1, the second universal transmission joint is connected in first universal transmission joint bottom and can rotate with first universal transmission joint;Sleeve 3 upper end is connected in second universal transmission joint bottom and can rotate with second universal transmission joint, the lower end of sleeve 3 is provided with the inner polygonal hole 31 matched with the head of screw rod 401 to be used to drive screw rod 401 rotation;Horn tube 4 is the hollow pipe of one end big, one end small, open small one end is connected in sleeve 3 bottom, and open big one end faces down.

[0027] The utility model discloses a two universal transmission joints 2 and the horn tube 4 setting in sleeve 3 bottom, as Figure 4 As shown, when sliding module drives sleeve 3 and screw rod 401 of fine adjustment claw butt joint, as long as screw rod 401 is in the diameter range of the lower end opening of horn tube 4, i. e. flexible sleeve can be bent to make the head of screw rod 401 slide into the inner polygonal hole 31 in the lower end of sleeve 3 along the inner wall of horn tube 4, then the torque of motor output shaft is transmitted to screw rod 401 through transmission shaft sleeve 1, universal transmission joint 2, sleeve 3, to realize the adjustment of fine adjustment claw, the utility model effectively increases the butt joint range of sleeve and fine adjustment claw screw rod, and it is convenient for sleeve and fine adjustment claw screw rod butt joint.

[0028] The utility model discloses universal transmission joint 2 at least has two, as Figure 3 As shown, when there is only one universal transmission joint 2, horn tube 4 contacts fine adjustment claw screw rod and changes the axial direction of sleeve 3, but the axial direction of fine adjustment claw screw rod is still in vertical direction, so sleeve 3 and fine adjustment claw screw rod cannot butt joint.

[0029] Specifically, the universal transmission joint 2 is a wind cannon universal sleeve with a square head 21 at one end and an inner square sleeve 22 at the other end, and the wind cannon universal sleeve is a conventional tool, which will not be described herein.

[0030] Further, an upper connecting hole 11 matched with the motor output shaft is formed at the center of the upper end of the transmission shaft sleeve 1, a threaded hole 111 penetrating through the side wall of the upper connecting hole 11 is formed in the side wall of the upper connecting hole 11, and a jackscrew 112 is threadedly connected in the threaded hole 111.

[0031] Further, a lower connecting hole 12 is formed at the center of the lower end of the transmission shaft sleeve 1, which matches the outer diameter of the inner square sleeve 22 of the first universal joint, and the inner square sleeve 22 of the first universal joint is connected in the lower connecting hole 12. A first pin hole 121 is formed in the side wall of the lower connecting hole 12, which transversely penetrates the side wall of the lower connecting hole 12. A second pin hole 221 is formed in the side wall of the inner square sleeve 22 of the first universal joint, which transversely penetrates the side wall of the inner square sleeve 22. A first pin shaft is inserted in the first pin hole 121 and the second pin hole 221, so that the first universal joint can be connected to the lower end of the transmission shaft sleeve 1 and can transmit torque.

[0032] Further, a spring 5 is connected between the top wall of the lower connecting hole 12 and the top wall of the inner square sleeve 22 of the first universal joint. The first pin hole 121 or the second pin hole 221 is a vertically extending strip-shaped hole. When working, if the sleeve 3 collides on the screw 401 of the fine adjustment claw 400 or moves downward too far, the sleeve 3 will transmit the force upward to the spring 5 through the first universal joint and the second universal joint. The first universal joint and the lower connecting hole 12 slide along the strip-shaped hole in opposite directions, and the spring 5 is compressed, achieving buffering and avoiding damage to the sliding module, the motor, the universal joint and the fine adjustment claw.

[0033] Further, a third pin hole 211 is formed in the square head 21 of the first universal joint, and a fourth pin hole 222 is formed in the side wall of the inner square sleeve 22 of the second universal joint, which transversely penetrates the side wall of the inner square sleeve 22. A second pin shaft is inserted in the third pin hole 211 and the fourth pin hole 222, so that the square head 21 of the first universal joint and the inner square sleeve 22 of the second universal joint can be relatively locked, avoiding the second universal joint from falling off the bottom of the first universal joint.

[0034] Further, a square hole 32 is formed in the top of the sleeve 3, which matches the square head 21 of the universal joint 2. The square head 21 of the second universal joint is inserted in the square hole 32 in the top of the sleeve 3, so that the second universal joint and the sleeve 3 are connected and can transmit torque.

[0035] Further, a fifth pin hole 212 is formed in the square head 21 of the second universal joint, and a sixth pin hole 321 is formed in the side wall of the square hole 32, which transversely penetrates the side wall of the square hole 32. A third pin shaft is inserted in the fifth pin hole 212 and the sixth pin hole 321, so that the square head 21 of the second universal joint and the sleeve 3 can be relatively locked, avoiding the sleeve 3 from falling off the bottom of the second universal joint.

[0036] Specifically, the shape of the inner polygonal hole 31 can be determined according to the head shape of the screw rod 401, and the inner polygonal hole 31 is an inner square hole, an inner hexagonal hole or an inner dodecagonal hole; the head shape of the screw rod 401 is a square head, and the inner polygonal hole 31 is a matching inner square hole; the head shape of the screw rod 401 is a hexagonal prism, and the inner polygonal hole 31 can be a matching inner hexagonal hole or an inner dodecagonal hole.

[0037] Further, the transmission shaft sleeve 1, the universal transmission joint 2, the sleeve 3 and the horn tube 4 are sleeved with the elastic hose 6 outside, the upper end and the lower end of the elastic hose 6 are tightly clamped on the outside of the transmission shaft sleeve 1 and the horn tube 4 through the cable tie 7 respectively, after the adjustment of the fine adjustment claw is completed, when the sliding module drives the sleeve 3 to move away from the screw rod 401 of the fine adjustment claw 400, the elastic hose 6 restores the straight shape of the two universal transmission joints 2 by using the elastic force of itself, and the elastic hose 6 can prevent dust or foreign matters from falling on the universal transmission joint 2, so that the dust or foreign matters cannot be mixed with the lubricating oil on the universal transmission joint 2 to cause the universal transmission joint 2 to be stuck.

[0038] Specifically, the elastic hose 6 is a rubber tube.

[0039] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A flexible sleeve for rail panel fine adjustment, characterized by, It comprises a transmission shaft sleeve (1), a universal transmission joint (2), a sleeve (3) and a horn pipe (4); The transmission shaft sleeve (1) is connected at the bottom of the motor output shaft and can rotate with the motor output shaft; The universal transmission joint (2) has two, which are the first universal transmission joint and the second universal transmission joint, the first universal transmission joint is connected at the bottom of the transmission shaft sleeve (1) and can rotate with the transmission shaft sleeve (1), and the second universal transmission joint is connected at the bottom of the first universal transmission joint and can rotate with the first universal transmission joint; The sleeve (3) is connected at the bottom of the second universal transmission joint and can rotate with the second universal transmission joint, and the lower end of the sleeve (3) is provided with an inner polygonal hole (31) matched with the head of the screw rod (401) for driving the screw rod (401) to rotate; The horn pipe (4) is a hollow pipe with one end large and one end small, and the small end is connected at the bottom of the sleeve (3), and the large end is downward.

2. A flexible sleeve for precision adjustment of a track slab according to claim 1, characterized in that The universal transmission joint (2) is a wind cannon universal sleeve with one end being a square head (21) and the other end being an inner square sleeve (22), and the square head (21) of the first universal transmission joint is inserted into the inner square sleeve (22) of the second universal transmission joint.

3. A flexible sleeve for precision adjustment of a track slab according to claim 2, characterized in that The upper end of the transmission shaft sleeve (1) is provided with an upper connecting hole (11) matched with the motor output shaft at the center, the side wall of the upper connecting hole (11) is provided with a threaded hole (111) transversely penetrating the side wall of the upper connecting hole (11), and the threaded hole (111) is threadedly connected with a jackscrew (112); The lower end of the transmission shaft sleeve (1) is provided with a lower connecting hole (12) matched with the outer diameter of the inner square sleeve (22) at the center, the inner square sleeve (22) of the first universal transmission joint is connected in the lower connecting hole (12), the side wall of the lower connecting hole (12) is provided with a first pin hole (121) transversely penetrating the side wall of the lower connecting hole (12), the side wall of the inner square sleeve (22) of the first universal transmission joint is provided with a second pin hole (221) transversely penetrating the side wall of the inner square sleeve (22), and the first pin hole (121) and the second pin hole (221) are inserted with a first pin shaft.

4. A flexible sleeve for precision adjustment of a track slab according to claim 3, characterized in that The top wall of the lower connecting hole (12) and the top wall of the inner square sleeve (22) of the first universal transmission joint are connected with a spring (5), and the first pin hole (121) or the second pin hole (221) is a vertical strip-shaped hole.

5. A flexible sleeve for precision adjustment of a track slab according to claim 2, characterized in that, The square head (21) of the first universal transmission joint is provided with a third pin hole (211) transversely, the side wall of the inner square sleeve (22) of the second universal transmission joint is provided with a fourth pin hole (222) transversely penetrating the side wall of the inner square sleeve (22), and the third pin hole (211) and the fourth pin hole (222) are inserted with a second pin shaft.

6. A flexible sleeve for precision adjustment of a track slab according to claim 2, characterized in that, The top of the sleeve (3) is provided with a square hole (32) matched with the square head (21) of the universal transmission joint (2), and the square head (21) of the second universal transmission joint is inserted into the square hole (32) at the top of the sleeve (3).

7. A flexible sleeve for precision adjustment of a track slab according to claim 6, characterized in that The square head (21) of the second universal joint is provided with a fifth pin hole (212) in the transverse direction, the sidewall of the quadrilateral hole (32) is provided with a sixth pin hole (321) penetrating the sidewall of the quadrilateral hole (32) in the transverse direction, and the third pin shaft is inserted into the fifth pin hole (212) and the sixth pin hole (321).

8. A flexible sleeve for precision adjustment of a track slab according to claim 1, characterized in that, The inner polygonal hole (31) is an inner quadrilateral hole, an inner hexagonal hole or an inner dodecagonal hole.

9. A flexible sleeve for precision adjustment of a track slab according to claim 1, characterized in that, The outer side of the transmission shaft sleeve (1), the universal joint (2), the sleeve (3) and the horn tube (4) is sleeved with an elastic hose (6), and the upper end and the lower end of the elastic hose (6) are tightly clamped on the outer side of the transmission shaft sleeve (1) and the horn tube (4) through the cable ties (7) respectively.

10. A flexible sleeve for precision adjustment of a track slab according to claim 9, characterized in that The elastic hose (6) is a rubber tube.