A rigid contact wire grinding device

Abstract

This utility model discloses a rigid contact wire polishing device, relating to the field of contact wire polishing. It includes a detection housing with a polishing channel extending through the top surface of the detection housing along the length of the busbar. A drive unit and a polishing unit are arranged within the polishing channel. The drive unit drives the detection housing to move along the busbar. The polishing unit includes a polishing motor mounting base, a polishing motor, and a polishing head. The polishing motor mounting base has a degree of freedom to move along the height direction of the detection housing. The polishing motor is mounted on the polishing motor mounting base. The output shaft of the polishing motor is connected to a threaded chuck via a coupling. The polishing head is coaxially connected to the threaded chuck. This device automates the contact wire polishing process, significantly reducing manual intervention and increasing polishing efficiency several times compared to traditional manual polishing.

Description

Technical Field

[0001] This utility model relates to the field of contact wire polishing technology, specifically a rigid contact wire polishing device. Background Technology

[0002] The overhead contact system is the main structure of railway electrification projects. It is erected in a "Z" shape above the rails, supplying power to the electric trains via pantographs mounted on the train's roof. When the train is running, the pantograph and contact wire repeatedly rub against each other, causing frictional wear, hard spots, and unevenness in the contact wire. With the widespread application of rigid contact systems in urban rail construction, their maintenance is particularly important. Therefore, regular grinding and repair are necessary to ensure a smooth and even contact wire surface, reduce contact resistance, and guarantee the stable operation of the power supply system.

[0003] Currently, existing rigid contact wire grinding devices on the market have many limitations. Most traditional grinding devices rely on manual operation, making it difficult to achieve automated grinding. Manual grinding is not only inefficient, but also, due to the physical and attentional limitations of operators, it is impossible to maintain a stable grinding state for a long time, resulting in inconsistent grinding quality and a tendency to over- or under-grind. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a rigid contact wire grinding device to solve the deficiencies of the prior art.

[0005] The purpose of this utility model is achieved through the following technical solution: a rigid contact wire grinding device, including a detection box, the top surface of which has a grinding channel extending through the busbar. The detection box has a drive unit and a grinding unit arranged within the grinding channel. The drive unit drives the detection box to move along the busbar. The grinding unit includes a grinding motor mounting base, a grinding motor, and a grinding head. The grinding motor mounting base has a degree of freedom to move along the height direction of the detection box. The grinding motor is mounted on the grinding motor mounting base. The output shaft of the grinding motor is connected to a threaded chuck via a coupling. The grinding head is coaxially connected to the threaded chuck.

[0006] Furthermore, the grinding motor mounting base is mounted on the testing box via a linear bearing. A screw is rotatably mounted inside the testing box. The axis of the screw and the axis of the linear bearing are both vertical. The grinding motor mounting base has a threaded hole. One end of the screw is threaded into the threaded hole, and the other end passes through the bottom of the testing box and is fixedly connected to an adjustment knob.

[0007] Furthermore, two sets of drive units are symmetrically arranged along the width direction of the busbar. Each drive unit includes a fixed support, a motor fixed support, a drive motor, and a roller. The fixed support is fixed on the detection box, the motor fixed support is mounted on the fixed support, the drive motor is mounted on the motor fixed support, and the output shaft of the drive motor is connected to the roller.

[0008] Furthermore, it also includes two sets of driven units symmetrically arranged along the width direction of the busbar. The driving unit and the driven units are arranged at intervals along the length direction of the busbar. The driven unit includes a driven wheel seat, a driven wheel fixing seat and a driven wheel. The driven wheel fixing seat is fixedly installed on the detection box, the driven wheel seat is installed on the driven wheel fixing seat, and the driven wheel is rotatably installed on the driven wheel seat.

[0009] Furthermore, the driven wheel fixing seat has a mounting slot at the top, and a mounting plate is fixed at the bottom of the driven wheel seat. The driven unit also includes a hinge and a knob plunger. The two hinged ends of the hinge are respectively connected to the driven wheel fixing seat and the driven wheel seat. The knob plunger is installed on the driven wheel fixing seat. The mounting plate has a positioning hole. The positioning pin of the knob plunger is conical, and the small diameter end of the positioning pin is inserted into the positioning hole.

[0010] Furthermore, it also includes multiple sets of guide units arranged along the length direction of the busbar. Each guide unit includes two sets of guide components symmetrically arranged along the width direction of the busbar. Each guide component includes a guide wheel base, a first single-ended toothed shaft, a second single-ended toothed shaft, a guide wheel mounting seat, a double-cut flange linear bearing, and a guide wheel. The guide wheel base is fixedly installed on the detection box. The first single-ended toothed shaft is installed on the top surface of the guide wheel base. The double-cut flange linear bearing is installed on the guide wheel mounting seat. The double-cut flange linear bearing is fitted onto the first single-ended toothed shaft. One end of the second single-ended toothed shaft is connected to the guide wheel mounting seat, and the other end is connected to the guide wheel.

[0011] Furthermore, the guide assembly also includes a spring, which is fitted onto a first single-ended toothed shaft. A washer is fixedly fitted onto the first single-ended toothed shaft, and the two ends of the spring are respectively connected to the washer and the guide wheel mounting seat.

[0012] Furthermore, the guide assembly also includes a bearing, the guide wheel is fixedly mounted on the outer ring of the bearing, and the bearing is mounted on the second single-head toothed shaft.

[0013] Furthermore, it also includes a dandruff removal unit, which includes a fan mounting base, a fan, and a fan protective cover. The fan mounting base is mounted on the detection box, the fan is mounted on the fan mounting base, the air outlet of the fan is inclined toward the contact line, and the fan protective cover is mounted on the back of the fan.

[0014] The beneficial effects of this utility model are:

[0015] 1. The detection box is driven by the drive unit to move on the busbar. With the automated operation of the grinding unit, the grinding process of the contact wire is automated, which greatly reduces manual intervention and can improve grinding efficiency several times compared with traditional manual grinding.

[0016] 2. The movable design of the grinding motor mounting base along the height of the detection box allows for precise and convenient adjustment of the grinding head position and grinding depth according to the actual wear of the contact wire, ensuring grinding accuracy, effectively avoiding over-grinding or insufficient grinding, and extending the service life of the contact wire.

[0017] 3. The coordinated action of the drive unit, driven unit, and guide unit enables the device to adapt to rigid contact wires of different specifications and installation conditions, ensuring stable operation of the device during grinding, reducing shaking and offset, and quickly completing parameter adjustment and equipment positioning for contact wires of different specifications, thus achieving efficient and stable grinding operations.

[0018] 4. The chip removal unit can automatically clean up the chips generated during the grinding process in a timely manner, preventing chip accumulation from affecting the grinding operation and the surface quality of the contact line, while also reducing the cleaning burden and work risks for maintenance personnel. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a rigid contact wire grinding device according to the present invention;

[0020] Figure 2 This is a partial structural diagram of a rigid contact wire grinding device according to the present invention. Figure 1 ;

[0021] Figure 3 This is a partial structural diagram of a rigid contact wire grinding device according to the present invention. Figure 2 ;

[0022] Figure 4 This is a schematic diagram of the operation of the rigid contact wire grinding device of this utility model. Figure 1 ;

[0023] Figure 5 This is a schematic diagram of the operation of the rigid contact wire grinding device of this utility model. Figure 2 ;

[0024] Figure 6 This is a schematic diagram of the cooperation between the driven wheel seat and the knob plunger in a rigid contact line grinding device of this utility model;

[0025] Figure 7This is a schematic diagram of the guide unit in a rigid contact wire grinding device of this utility model;

[0026] In the diagram, 1-Detection box, 2-Grinding motor mounting bracket, 3-Grinding motor, 4-Grinding head, 5-Coupling, 6-Threaded chuck, 7-Linear bearing, 8-Screw, 9-Threaded hole, 10-Adjusting knob, 11-Fixed support, 12-Motor mounting bracket, 13-Drive motor, 14-Roller, 15-Driven wheel seat, 16-Driven wheel mounting bracket, 17-Driven wheel, 18-Mounting slot, 19-Mounting plate, 20-Hinge, 21-Knob plunger, 22- - Positioning hole, 23 - Guide wheel base, 24 - First single-head toothed shaft, 25 - Second single-head toothed shaft, 26 - Guide wheel mounting seat, 27 - Double-cut flange linear bearing, 28 - Guide wheel, 29 - Spring, 30 - Washer, 31 - Bearing, 32 - Fan mounting seat, 33 - Fan, 34 - Fan guard, 35 - Busbar, 36 - Contact line, 37 - Drive hinge, 38 - Limit slot, 39 - Limit plate, 40 - Knob plunger a, 41 - Bottom groove. Detailed Implementation

[0027] Example 1

[0028] like Figures 1 to 7 As shown, a rigid contact wire grinding device includes a detection housing 1. A grinding channel is formed through the top surface of the detection housing 1 along the length of the busbar. A drive unit and a grinding unit are disposed within the grinding channel in the detection housing 1. The drive unit drives the detection housing 1 to move along the busbar. The grinding unit includes a grinding motor mounting base 2, a grinding motor 3, and a grinding head 4. The grinding motor mounting base 2 has a degree of freedom to move along the height direction of the detection housing 1. The grinding motor 3 is mounted on the grinding motor mounting base 2. The output shaft of the grinding motor 3 is connected to a threaded chuck 6 via a coupling 5. The grinding head 4 is coaxially connected to the threaded chuck 6. The drive unit acts on the busbar to drive the contact wire. The entire device moves along the length of the busbar. During this movement, the grinding unit starts, and the grinding head 4 contacts the contact wire 36. The grinding motor 3 drives the grinding head 4 to rotate, thereby achieving automatic grinding of the contact wire 36. This automates the grinding process, significantly reducing manual intervention and increasing grinding efficiency several times compared to traditional manual grinding. Secondly, the grinding motor mounting base 2 is vertically adjustable, allowing for precise and convenient adjustment of the position and grinding depth of the grinding head 4 based on the actual wear of the contact wire. This ensures grinding accuracy, effectively avoiding over-grinding or under-grinding, and extending the service life of the contact wire. Preferably, the grinding head 4 is a scouring pad grinding head.

[0029] Example 2

[0030] Based on Example 1, such as Figure 1As shown, it also includes a chip removal unit, which includes a fan mounting base 32, a fan 33, and a fan protective cover 34. The fan mounting base 32 is installed on the detection box 1, and the fan 33 is installed on the fan mounting base 32. The air outlet of the fan 33 is tilted towards the contact line. The fan protective cover 34 is installed on the back of the fan 33. The fan 33 can blow away the chips generated by grinding in time, avoiding the accumulation of chips that affect the grinding operation and the surface quality of the contact line. It also reduces the cleaning burden and work risks of maintenance personnel.

[0031] Example 3

[0032] Based on Example 2, such as Figures 1 to 3 As shown, the grinding motor mounting base 2 is mounted on the testing box 1 via a linear bearing 7. A screw 8 is rotatably mounted inside the testing box 1. The axes of the screw 8 and the linear bearing 7 are both vertically aligned. The grinding motor mounting base 2 has a threaded hole 9. One end of the screw 8 is threaded into the threaded hole 9, and the other end passes through the bottom of the testing box 1 and is fixedly connected to the adjustment knob 10. The testing box 1 is mounted on the busbar 35. Then, rotating the adjustment knob 10 drives the screw 8 to rotate. Under the action of the linear bearing 7, the rotational freedom of the grinding motor mounting base 2 is restricted, allowing the grinding motor mounting base 2 to move linearly along the axis of the screw 8, so that the grinding head 4 contacts the contact line. This allows the height position of the grinding head 4 to be adjusted according to the actual wear condition of the contact line.

[0033] Example 4

[0034] Based on Example 3, such as Figures 1 to 6As shown, two sets of drive units are symmetrically arranged along the width direction of the busbar. Each drive unit includes a fixed support 11, a motor fixed support 12, a drive motor 13, and rollers 14. The fixed support 11 is fixed to the detection housing 1, the motor fixed support 12 is mounted on the fixed support 11, and the drive motor 13 is mounted on the motor fixed support 12. The output shaft of the drive motor 13 is connected to the rollers 14. The rollers 14 of the two drive units are located in grooves on both sides of the busbar. The drive motor 13 drives the rollers 14 to rotate, causing the rollers 14 to move the entire device along the busbar. In a specific implementation, the motor fixed support 12 is not directly connected to the fixed support 11, but is connected to the fixed support 11 through a drive hinge 37. The two hinge ends of the drive hinge 37 are connected to the motor fixed support 12 and the fixed support 11 respectively. The rotation axis of the drive hinge is parallel to the contact line, allowing the motor fixed support 12 to deflect on the fixed support 11. A limiting slot 38 is provided on the top of the support 11. A limiting plate 39 is fixed on the top of the motor fixing support 12. The limiting plate 39 is located in the limiting slot 38. A knob plunger a40 is installed on the fixing support 11. A limiting hole is provided on the limiting plate 39. The positioning pin of the knob plunger a40 is inserted into the limiting hole. The specific process of installing the test box 1 on the busbar is as follows: First, turn the knob plunger a40 to disengage the positioning pin of the knob plunger a40 from the limiting hole, and then unlock the motor fixing support. The rotational freedom between the support 12 and the fixed support 11 allows the motor fixed support 12 to deflect upwards, enabling the busbar to smoothly enter the grinding channel of the test box 1. Then, the motor fixed support 12 rotates back to its original position, allowing the roller 14 to smoothly enter the groove of the busbar. Finally, the knob plunger a40 is turned, causing the positioning pin of the knob plunger a40 to extend into the limiting hole, thereby locking the position of the motor fixed support 12 and enabling the entire device to be smoothly installed on the busbar.

[0035] Example 5

[0036] Based on Example 4, such as Figures 1 to 6As shown, it also includes two sets of driven units symmetrically arranged along the width direction of the busbar. The drive unit and the driven units are arranged at intervals along the length direction of the busbar. The driven unit includes a driven wheel seat 15, a driven wheel fixing seat 16 and a driven wheel 17. The driven wheel fixing seat 16 is fixedly installed on the detection box 1, the driven wheel seat 15 is installed on the driven wheel fixing seat 16, and the driven wheel 17 is rotatably installed on the driven wheel seat 15. The drive unit drives the driven wheel 17 in the driven unit to move on the busbar, making the movement of the entire device more stable. The driven wheel mounting base 16 has a mounting slot 18 on its top, and a mounting plate 19 is fixed to the bottom of the driven wheel seat 15. The driven unit also includes a hinge 20 and a knob plunger 21. The two hinged ends of the hinge 20 are respectively connected to the driven wheel mounting base 16 and the driven wheel seat 15. The knob plunger 21 is mounted on the driven wheel mounting base 16. The mounting plate 19 has a positioning hole 22. The positioning pin of the knob plunger 21 is conical, and the small-diameter end of the positioning pin is inserted into the positioning hole 22. When the grinding device is installed on the busbar, the driven unit also needs to be adjusted. Specifically... First, turn the knob plunger 21 to disengage the locating pin of the knob plunger 21 from the locating hole 22, unlocking the rotational freedom between the driven wheel seat 15 and the driven wheel fixed seat 16, causing the driven wheel seat 15 to deflect upwards, so that the busbar can smoothly enter the grinding channel of the test box 1. Then, the driven wheel seat 15 rotates back to its original position, so that the driven wheel 17 can smoothly enter the groove of the busbar. Finally, turn the knob plunger 21 to extend the locating pin of the knob plunger 21 into the locating hole, thereby locking the position of the driven wheel seat 15, so that the entire device can be smoothly installed on the busbar.

[0037] Example 6

[0038] Based on Example 5, such as Figures 1 to 7As shown, it also includes multiple sets of guide units arranged along the length of the busbar. Each guide unit includes two sets of guide assemblies symmetrically arranged along the width of the busbar. Each guide assembly includes a guide wheel base 23, a first single-headed toothed shaft 24, a second single-headed toothed shaft 25, a guide wheel mounting seat 26, a double-cut flange linear bearing 27, and a guide wheel 28. The guide wheel base 23 is fixedly mounted on the detection housing 1. The first single-headed toothed shaft 24 is mounted on the top surface of the guide wheel base 23. The double-cut flange linear bearing 27 is mounted on the guide wheel mounting seat 26 and is fitted onto the first single-headed toothed shaft 24. One end of the second single-headed toothed shaft 25 is connected to the guide wheel mounting seat 26, and the other end is connected to the guide wheel 28. The guide assembly also includes a spring 29, which is fitted onto the first single-headed toothed shaft 24. A washer 30 is fixedly sleeved on the single-headed toothed shaft 24. The two ends of the spring 29 are respectively connected to the washer 30 and the guide wheel mounting seat 26. The guide assembly also includes a bearing 31. The guide wheel 28 is fixedly sleeved on the outer ring of the bearing 31. The bearing 31 is sleeved on the second single-headed toothed shaft 25. Under the action of the double-cut flange linear bearing 27, the guide wheel mounting seat 26 can move up and down on the first single-headed toothed shaft 24. When installing the grinding device, the guide wheel mounting seat 26 moves downward to compress the spring 29, so that the guide wheel 28 can move smoothly to the bottom of the manifold. After the grinding device is installed, the guide wheel 28 moves upward under the action of the spring 29, so that the guide wheel 28 enters the bottom groove 41 of the manifold. With the cooperation of the guide wheel 28 and the bottom groove 41, the entire device is ensured to move along the direction of the manifold 35.

Claims

1. A rigid contact wire polishing device, characterized in that, The device includes a detection housing (1), the top surface of which has a grinding channel extending through the busbar. The detection housing (1) has a drive unit and a grinding unit installed in the grinding channel. The drive unit is used to drive the detection housing (1) to move on the busbar. The grinding unit includes a grinding motor mounting base (2), a grinding motor (3), and a grinding head (4). The grinding motor mounting base (2) has a degree of freedom to move along the height direction of the detection housing (1). The grinding motor (3) is mounted on the grinding motor mounting base (2). The output shaft of the grinding motor (3) is connected to a threaded chuck (6) via a coupling (5). The grinding head (4) is coaxially connected to the threaded chuck (6).

2. A rigid contact wire polishing device according to claim 1, characterized in that The grinding motor mounting base (2) is mounted on the test box (1) via a linear bearing (7). A screw (8) is rotatably installed inside the test box (1). The axis of the screw (8) and the axis of the linear bearing (7) are both vertical. A threaded hole (9) is provided on the grinding motor mounting base (2). One end of the screw (8) is threaded to fit the threaded hole (9), and the other end passes through the bottom of the test box (1) and is fixedly connected to the adjustment knob (10).

3. A rigid contact wire polishing device according to claim 1, characterized in that Two sets of drive units are symmetrically arranged along the width direction of the busbar. The drive unit includes a fixed support (11), a motor fixed support (12), a drive motor (13), and a roller (14). The fixed support (11) is fixed on the detection box (1). The motor fixed support (12) is installed on the fixed support (11). The drive motor (13) is installed on the motor fixed support (12). The output shaft of the drive motor (13) is connected to the roller (14).

4. The rigid contact wire grinding device according to claim 1, characterized in that, It also includes two sets of driven units symmetrically arranged along the width direction of the busbar. The driving unit and the driven unit are arranged at intervals along the length direction of the busbar. The driven unit includes a driven wheel seat (15), a driven wheel fixing seat (16) and a driven wheel (17). The driven wheel fixing seat (16) is fixedly installed on the detection box (1). The driven wheel seat (15) is installed on the driven wheel fixing seat (16). The driven wheel (17) is rotatably installed on the driven wheel seat (15).

5. A rigid contact wire polishing device according to claim 4, characterized in that The driven wheel fixing seat (16) has an installation slot (18) on its top, and the driven wheel seat (15) has an installation plate (19) fixed on its bottom. The driven unit also includes a hinge (20) and a knob plunger (21). The two hinge ends of the hinge (20) are respectively connected to the driven wheel fixing seat (16) and the driven wheel seat (15). The knob plunger (21) is installed on the driven wheel fixing seat (16). The installation plate (19) has a positioning hole (22). The positioning pin of the knob plunger (21) is conical, and the small diameter end of the positioning pin is inserted into the positioning hole (22).

6. A rigid contact wire polishing device according to claim 1, characterized in that It also includes multiple sets of guide units arranged along the length of the busbar. Each guide unit includes two sets of guide components symmetrically arranged along the width of the busbar. Each guide component includes a guide wheel base (23), a first single-head toothed shaft (24), a second single-head toothed shaft (25), a guide wheel mounting seat (26), a double-cut flange linear bearing (27), and a guide wheel (28). The guide wheel base (23) is fixedly installed on the detection box (1). The first single-head toothed shaft (24) is installed on the top surface of the guide wheel base (23). The double-cut flange linear bearing (27) is installed on the guide wheel mounting seat (26). The double-cut flange linear bearing (27) is fitted on the first single-head toothed shaft (24). One end of the second single-head toothed shaft (25) is connected to the guide wheel mounting seat (26), and the other end is connected to the guide wheel (28).

7. A rigid contact wire polishing device according to claim 6, characterized in that The guide assembly also includes a spring (29), which is fitted on a first single-head toothed shaft (24). A washer (30) is fixedly fitted on the first single-head toothed shaft (24). The two ends of the spring (29) are respectively connected to the washer (30) and the guide wheel mounting seat (26).

8. A rigid contact wire grinding device according to claim 6, characterized in that, The guide assembly also includes a bearing (31), the guide wheel (28) is fixedly mounted on the outer ring of the bearing (31), and the bearing (31) is mounted on the second single-head toothed shaft (25).

9. A rigid contact wire polishing device according to claim 1, characterized in that It also includes a dandruff removal unit, which includes a fan mounting base (32), a fan (33) and a fan protective cover (34). The fan mounting base (32) is mounted on the detection box (1), the fan (33) is mounted on the fan mounting base (32), the air outlet of the fan (33) is tilted towards the contact line, and the fan protective cover (34) is mounted on the back of the fan (33).

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