Rail trolley brush detection tool structure

Abstract

A track trolley brush detection tool structure, including a moving platform, a curved copper track, a curved sliding groove, a platform guide shaft, a connecting rod adapter sliding table and a driver, a brush detection tool is formed, a pair of vertical guide shafts of the moving platform are positioned on the platform guide shaft through double-hole shaft seats, single-ball rollers below the pair of vertical guide shafts always apply pressure downward to the vertical guide shafts through the action of springs, ensure that the balls on the single-ball rollers run along the bottom groove curve of the curved sliding groove, during the reciprocating operation of the moving platform on the platform guide shaft, due to the curve effect of the curved sliding groove, the up-and-down joint shafts of the movable arm will make the movable arm automatically change the angle, the moving platform can automatically adjust the horizontal angle according to the curve of the curved sliding groove, and the running environment of the detected brush meets the simulation detection design requirement, the utility model starts from the angle of safe operation, controls the quality of the brush before the trolley assembly, and ensures that the brush parts are zero-fault on the machine, and the operation safety is guaranteed.

Description

Technical Field

[0001] A patented tooling structure for testing the brushes of a railcar belongs to the quality assurance system for the production of railcar brushes in a rail logistics transmission system. It is applicable to the control scheme before the safe operation of the railcar and is beneficial to the safe operation of the railcar and the stable operation of the rail logistics transmission system. Background Technology

[0002] Rail-based logistics systems have been widely used in hospitals, and the requirements of the National Health Commission for hospital sterilization centers, central pharmacies, and central supply rooms are becoming increasingly standardized. Since a large amount of manpower is needed to transport items such as infusion bags, medicines, and surgical packs to various wards, and modern hospitals have many floors and small spaces, these personnel responsible for transportation inevitably compete with patients and medical staff for elevator resources, making it difficult to guarantee the delivery time and the hygiene of the items. Against this background, the application of rail-based logistics systems is particularly important. Vertical, horizontal, and curved tracks are distributed on various floors of the hospital, and intelligent trolleys can shuttle on the tracks to transport items, simplifying the original process of transporting items.

[0003] The brush is the power source for the track trolley in the track system. The structural design of the brush is a crucial technology for the safe operation of the track system. It requires ensuring the conductivity stability of the brush's contact surface during operation, preventing changes in the contact surface due to the curves of the track. Minimizing friction noise during operation is also essential for stable trolley operation. In this invention, the brush copper body and conductor spring are connected to the rubber substrate via a mesh copper cable. During brush manufacturing, the mesh copper cable can be damaged, causing internal contact failures, low load capacity, and compromised service life, severely impacting trolley safety and system stability. The brush testing fixture is designed for advanced simulation load testing of the brushes to be installed on the trolley. Due to time constraints, overload testing is conducted to verify the stability of the mesh copper cable's contact and the required load capacity. The biggest difference in this invention is that, based on the brush's structural characteristics and manufacturing process, it controls the brush quality before the track trolley assembly from a safety perspective, ensuring zero-fault brush components and significantly improving system safety. Utility Model Content

[0004] To achieve the above objectives, this application provides the following technical solution: A tooling structure for testing the brushes of a track trolley includes a moving platform, a curved copper rail, a curved slide, a platform guide shaft, a connecting rod transition slide, and a driver. The moving platform has two horizontally positioned movable arms below it. The upper joint shafts of the movable arms are installed in two mounting holes on the moving platform, and the lower joint shafts are installed in two mounting holes above a vertical guide shaft. The two vertical guide shafts are fixed to the platform guide shaft via a pair of double-hole bearings. The double-hole bearings are fixed to both sides of the platform drive arm. Two platform guide shafts are designed at the front and rear, passing through the horizontal shaft holes of the double-hole bearings. The vertical guide shafts pass through the vertical shaft holes of the double-hole bearings. A pair of single-ball rollers are installed below the vertical guide shafts, with the balls under the single-ball rollers positioned in the curved slide. A spring is designed above the vertical guide shaft of each single-ball roller. The mobile platform is designed with a curved copper rail in the horizontal direction above it. The curved copper rail is fixed below the copper rail mounting handle. One end of the copper rail mounting handle is installed on the copper rail handle movable shaft of the copper rail handle mounting column. One end of the handle of the copper rail mounting handle is pressed into the insertion hole of the handle pin column. The driver is fixed on the driver mounting platform, which is fixed on the tooling base. The drive crank arm is installed at one end of the drive shaft. The crank arm force shaft is connected to the left force arm of the connecting rod transfer slide through the left connecting rod, and then connected to the right connecting rod through the right force arm of the transfer slide. The platform drive arm is connected to the right connecting rod through the platform force arm shaft.

[0005] The mobile platform is the fixed platform for brush testing. The platform surface is made into a positioning mold according to the shape of the conductor spring on the brush. The brush to be tested is fixed in the positioning mold by the conductive bolts of the spring.

[0006] The running interval of a pair of vertical guide shafts under the mobile platform is fixed by the platform drive arm and is the same as the interval of the two joint shafts under the mobile platform. During operation, the height position of the pair of vertical guide shafts on the double-hole shaft seat will change as the mobile platform moves.

[0007] The curved copper rail surface and the bottom groove of the curved slide groove have the same height and similar length in the S-shape. The curved copper rail and the curved slide groove are designed to be in the same horizontal vertical position as the moving platform.

[0008] The platform guide shaft is designed on both sides of the mobile platform and is horizontally inserted into the outer holes of the double-hole shaft seats on both sides of the platform drive arm.

[0009] The slide base of the connecting rod adapter slide 7 is mounted on the slide rail, and the height of the left lever arm is the same as the height of the drive shaft of the driver. The driver is a DC geared motor.

[0010] The conductive bolt end of the brush is connected in series with a power switch and connected to the positive terminal of a DC24V50A power supply. The lead cable of the conductive bolt terminal of the curved copper rail is connected to one end of the dummy load, and an ammeter is connected in series in the middle. The negative terminal of the power supply is connected to the other end of the dummy load, and the driver is connected in parallel with the same polarity to both ends of the dummy load.

[0011] The drive's rotational speed is twice that of the trolley's running speed. The test speed is 1 m / s, and the single-brush test time is 60 s. During the operation time, the brush is overloaded by 50%. During the test, the brush testing fixture is started under no-load conditions, and after 3 seconds, it is overloaded for 60 seconds and then shut down. The test indicators, voltage and current, meet the design requirements.

[0012] The biggest difference of this utility model is that, based on the structural characteristics and manufacturing process of the brush, from the perspective of safe operation, the quality of the brush is controlled before the final assembly of the track trolley, ensuring that the brush components are put into operation with zero defects, thereby improving the safety of system operation. Attached Figure Description

[0013] To more clearly illustrate the embodiments and technical solutions of this utility model, the technical solutions in specific embodiments of this device are described clearly and completely in conjunction with the accompanying drawings. The embodiments described are only a part of this utility model and not all of the embodiments. Other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the brush structure.

[0016] As shown in the accompanying drawings, the numbers in the drawings are as follows: 1. Brush; 101. Conductor spring; 1010. Spring weld joint; 102. Spring conductive bolt; 1020. Spring bolt hole; 103. Brush contact; 104. Brush copper body; 1040. Brush copper body weld joint; 105. Rubber body; 106. Mesh copper cable; 2. Curved copper rail; 201. Copper rail conductive bolt; 3. Copper rail mounting handle; 301. Handle; 4. Moving platform; 401. Movable arm; 402. Joint shaft; 403. Vertical guide shaft; 404. Double-hole bearing seat; 405. Bearing seat mounting position; 406. Spring; 407. Single ball roller; 4 08. Ball bearing; 5. Curved slide groove; 500. Bottom groove; 6. Platform guide shaft; 601. Guide shaft bracket; 602. Guide shaft mounting position; 7. Connecting rod adapter slide; 700. Slide rail; 701. Left lever arm; 702. Right lever arm; 703. Slide table base; 704. Left connecting rod; 705. Right connecting rod; 706. Platform lever arm shaft; 707. Platform drive arm; 8. Copper rail handle mounting column; 801. Copper rail handle movable shaft; 802. Copper rail handle pin; 803. Handle pin column; 9. Driver; 900. Drive shaft; 901. Driver mounting platform; 902. Drive crank arm; 903. Crank arm force shaft; 10. Tooling base. Detailed Implementation

[0017] To more clearly illustrate the embodiments of this utility model and the technical solutions of existing devices, a clear and complete description of the technical solutions in specific embodiments of this utility model is provided in conjunction with the accompanying drawings, which is beneficial for understanding the technology. It should be noted that the terms "installation," "setting," "design," "connection," "linking," and "positioning" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a direct connection, an indirect connection through an intermediate medium, or an internal connection between two devices, components, or constituent parts. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. The present application will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] See Figure 1Two movable arms 401 are designed horizontally below the mobile platform 4. The upper joint shaft 402 of the movable arm 401 is installed in two mounting holes of the mobile platform 4, and the lower joint shaft 402 of the movable arm 401 is installed in two mounting holes above the vertical guide shaft 403. The two vertical guide shafts 403 are fixed to the platform guide shaft 6 by a pair of double-hole bearings 404. The double-hole bearings 404 are fixed on both sides of the platform drive arm 707. The platform guide shaft 6 has two shafts designed at the front and rear, which are inserted into the horizontal shaft holes of the double-hole bearings 404. The vertical guide shafts 403 are inserted into the vertical shaft holes of the double-hole bearings 404. A pair of single ball rollers 407 are installed below the vertical guide shafts 403. The balls 408 under the single ball rollers 407 are positioned in the curved groove. A spring 406 is designed above the vertical guide shaft 403 of the single ball rollers 407.

[0019] See Figure 1 A curved copper rail 2 is designed horizontally above the mobile platform 4. The curved copper rail 2 is fixed below the copper rail mounting handle 3. One end of the copper rail mounting handle 3 is installed on the copper rail handle movable shaft 801 of the copper rail handle mounting column 8. One end of the handle 301 of the copper rail mounting handle 3 is pressed into the insertion hole of the handle pin column 803.

[0020] See Figure 1 The driver 9 is fixed on the driver mounting platform 901, which is fixed on the tooling base 10. The drive crank arm 902 is installed at one end of the drive shaft 900. The crank arm force shaft 903 is connected to the left force arm 701 of the connecting rod transfer slide 7 via the left connecting rod 704, and then connected to the right connecting rod 705 via the right force arm 702 of the transfer slide 7. The platform drive arm 707 is connected to the right connecting rod 705 via the platform force arm shaft 706.

[0021] See Figure 1 The mobile platform 4 is a fixed platform for brush testing. The platform surface is made into a positioning mold according to the shape of the conductor spring 101 on the brush 1. The brush 1 to be tested is fixed in the positioning mold by the spring conductive bolt 102.

[0022] See Figure 1 The running interval of the pair of vertical guide shafts 403 below the mobile platform 4, which is fixed by the platform drive arm 707, is the same as the interval of the two joint shafts 402 below the mobile platform 4. During operation, the height position of the pair of vertical guide shafts 403 on the double-hole bearing 404 will change as the mobile platform 4 moves.

[0023] See Figure 1 The copper rail surface of the curved copper rail 2 and the bottom groove 500 of the curved slide 5 have the same height and similar length. The curved copper rail 2 and the curved slide 5 are designed to be in the vertical position of the same horizontal line as the moving platform 4.

[0024] The platform guide shaft 6 is designed on both sides of the mobile platform 4 and is horizontally inserted into the outer hole of the double-hole bearing 404 on both sides of the platform drive arm 707.

[0025] See Figure 1 The slide base 703 of the connecting rod transfer slide 7 is mounted on the slide rail 700. The height of the left lever arm 701 is the same as the height of the drive shaft 900 of the driver 9. The driver 9 is a DC geared motor.

[0026] See Figure 1 The conductive bolt 102 of the brush 1 is connected in series with a power switch and connected to the positive terminal of a DC 24V 50A power supply. The cable of the conductive bolt 201 terminal of the curved copper rail 2 is connected to one end of the dummy load, and an ammeter is connected in series in the middle. The negative terminal of the power supply is connected to the other end of the dummy load. The driver 9 is connected in parallel with the same polarity to both ends of the dummy load.

[0027] See Figure 1 The drive 9 rotates at a speed twice that of the trolley, with a test speed of 1 m / s and a single-wire test time of 60 s. During the test, the brush is overloaded by 50% during the test. The test fixture is started under no-load conditions, and then overloaded for 60 s after 3 s before being shut down. The test parameters, voltage and current, meet the design requirements.

[0028] See Figure 1 When testing the brush, remove the copper rail handle pin 802, lift the copper rail mounting handle 3, place the brush to be tested 1 into the installation position of the moving platform 4, fix it with the spring contact conductive bolt 102, lower the copper rail mounting handle 3, and then insert the copper rail handle pin 802.

[0029] The driver 9 rotates in only one direction. The rotation of the driver 9 drives the drive crank arm 902 to rotate in a circle. The drive crank arm 902 drives the right link 705 on the link transfer slide 7 to move in the same direction through the left link 704, thereby pulling the moving platform 4 to move back and forth on the platform guide shaft 6.

[0030] A pair of vertical guide shafts 403 of the mobile platform 4 are positioned on the platform guide shaft 6 by a double-hole bearing 404. The single ball rollers 407 below the pair of vertical guide shafts 403 are pressed downward by the action of springs 406, ensuring that the balls 408 on the single ball rollers 407 run along the curve of the bottom groove 500 of the curved slide 5.

[0031] During the reciprocating motion of the platform guide shaft 6, due to the curved action of the curved slide 5, the vertical guide shafts 403 have inconsistent upper and lower extension positions. The upper and lower joint shafts 402 of the movable arm 401 will cause the movable arm 401 to automatically change its angle. The mobile platform 4 can adjust its horizontal angle according to the curve of the curved slide 5, ensuring that the operating environment of the tested brush meets the simulation test design requirements.

Claims

1. A fixture structure for detecting the brushes of a track trolley, comprising a moving platform, a curved copper rail, a curved slide, a platform guide shaft, a connecting rod transition slide, and a driver, characterized in that: Two movable arms are designed horizontally below the mobile platform. The upper joint shaft of the movable arm is installed in two mounting holes in the mobile platform, and the lower joint shaft of the movable arm is installed in two mounting holes above the vertical guide shaft. The two vertical guide shafts are fixed to the platform guide shaft by a pair of double-hole shaft seats. The double-hole shaft seats are fixed on both sides of the platform drive arm. There are two platform guide shafts designed at the front and rear, which are inserted into the horizontal shaft holes of the double-hole shaft seats. The vertical guide shafts are inserted into the vertical shaft holes of the double-hole shaft seats. A pair of single-ball rollers are installed below the vertical guide shafts. The balls under the single-ball rollers are positioned in curved grooves. A spring is designed above the vertical guide shaft of the single-ball rollers. The mobile platform is designed with a curved copper rail in the horizontal direction above it. The curved copper rail is fixed below the copper rail mounting handle. One end of the copper rail mounting handle is installed on the copper rail handle movable shaft of the copper rail handle mounting column. One end of the handle of the copper rail mounting handle is pressed into the insertion hole of the handle pin column. The driver is fixed on the driver mounting platform, which is fixed on the tooling base. The drive crank arm is installed at one end of the drive shaft. The crank arm force shaft is connected to the left force arm of the connecting rod transfer slide through the left connecting rod, and then connected to the right connecting rod through the right force arm of the transfer slide. The platform drive arm is connected to the right connecting rod through the platform force arm shaft.

2. The tooling structure for detecting the brushes of a track trolley according to claim 1, characterized in that, The mobile platform is a fixed platform for brush testing. The platform surface is made into a positioning mold according to the shape of the conductor spring on the brush. The brush to be tested is fixed in the positioning mold by the conductive bolt of the spring.

3. The tooling structure for detecting the brushes of a track trolley according to claim 1, characterized in that, The running interval of the pair of vertical guide shafts under the mobile platform, which are fixed by the platform drive arm, is the same as the interval of the two joint shafts under the mobile platform. During operation, the height position of the pair of vertical guide shafts on the double-hole bearing will change as the mobile platform moves.

4. The track trolley brush detection fixture structure according to claim 1, characterized in that, The curved copper rail surface and the bottom groove of the curved slide groove have the same height and similar length in the S-shape. The curved copper rail and the curved slide groove are designed to be in the same horizontal vertical position as the moving platform.

5. The track trolley brush detection fixture structure according to claim 1, characterized in that, The platform guide shaft is designed on both sides of the mobile platform and is horizontally inserted into the outer holes of the double-hole shaft seats on both sides of the platform drive arm.

6. The track trolley brush detection fixture structure according to claim 1, characterized in that, The slide base of the connecting rod adapter slide is mounted on the slide rail, and the height of the left lever arm is the same as the height of the drive shaft of the driver. The driver is a DC geared motor.

7. The track trolley brush detection fixture structure according to claim 1, characterized in that, The conductive bolt end of the brush is connected in series with a power switch and connected to the positive terminal of a DC24V50A power supply. The cable of the conductive bolt terminal of the curved copper rail is connected to one end of the dummy load, and an ammeter is connected in series in the middle. The negative terminal of the power supply is connected to the other end of the dummy load, and the driver is connected in parallel with the same polarity to both ends of the dummy load.

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