Rail brake main drive shaft end face polishing device
By incorporating a dust extraction mechanism into the grinding device, the problem of dust dispersion was solved, achieving effective dust absorption and air purification, thus protecting the health of the workers.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU TONGSHENG AUTOMOTIVE TECH CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-06-16
Smart Images

Figure CN224359866U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of workpiece processing equipment technology, and in particular to a grinding device for the end face of the main drive shaft of a track brake. Background Technology
[0002] The main drive shaft of the brake is the core transmission component of the rail transit braking system. It is responsible for transmitting braking commands from the drive source to the brake actuator to achieve vehicle deceleration or stopping. This main drive shaft, through precise mechanical motion conversion and force transmission, causes the brake shoes or brake pads to contact the wheels or brake discs to generate the necessary friction.
[0003] In the machining of the main drive shaft of the brake, the main drive shaft of the brake is usually placed on a grinding device for end face grinding. However, since the grinding end of the grinding device is often exposed to the air, the dust generated during the grinding process cannot be effectively absorbed, which can easily lead to dust escaping and causing health hazards to workers who inhale it, and it can also easily pollute the air.
[0004] Therefore, there is a particular need for a grinding device for the end face of the main drive shaft of a track brake, which achieves the purpose of dust removal by setting up a dust suction mechanism. Utility Model Content
[0005] In order to overcome the shortcomings of existing patents, where the grinding end of the grinding device is often exposed to the air, the dust generated during the grinding of the drive shaft cannot be effectively absorbed, which can easily lead to dust escaping and causing health hazards to workers, as well as easily polluting the air, this utility model provides a grinding device for the end face of the main drive shaft of a track brake. This grinding device achieves the purpose of dust removal by setting up a dust suction mechanism.
[0006] This utility model is achieved through the following technical means: a grinding device for the end face of the main drive shaft of a track brake, including a mounting frame, an observation window embedded in the mounting frame for viewing the situation, a placement frame for placing the drive shaft inside the mounting frame, a triangular gripper for clamping the drive shaft inside the mounting frame, electric push rods distributed on the left and right sides of the mounting frame, a first guide rod fixedly connected to the electric push rod, the first guide rod passing through the support frame for guidance, a motor installed on the side of the first guide rod near the triangular gripper, the output shaft of the motor connected to a screw through a coupling, the screw threadedly connected to the support frame, a motor installed on the support frame, a grinding wheel rotatably connected to the support frame for grinding the end face of the drive shaft, the output shaft of the motor passing through the support frame and keyed to the grinding wheel, and also including a dust collection mechanism, the mounting frame being provided with a dust collection mechanism for absorbing the dust generated during the grinding of the drive shaft.
[0007] As a preferred embodiment of this utility model, the dust collection mechanism includes a filter screen, a mounting shell, an electric fan, and a collection box. The mounting frame is equipped with a filter screen, the filter screen is fixedly connected to the mounting shell, the electric fan is installed inside the mounting shell, and the collection box is slidably connected to the mounting shell for collecting deposited dust.
[0008] As a preferred embodiment of this utility model, the support frame also contacts the inner wall of the mounting frame to assist the support frame in moving smoothly.
[0009] As a preferred embodiment of this utility model, the collection box is further provided with a pull rod connected to it.
[0010] As a preferred technical solution of this utility model, the mounting frame is further provided with a cleaning mechanism for cleaning the surface of the observation window. The cleaning mechanism includes a cleaning plate, a second guide rod, an elastic element, and a pull rope. The mounting frame is fixedly connected with second guide rods distributed on the left and right. A cleaning plate is slidably connected between the two second guide rods. The cleaning plate is in contact with the surface of the observation window. The cleaning plate is connected to a pull rope. By pulling the pull rope downwards, the cleaning plate wipes the surface of the observation window.
[0011] As a preferred embodiment of this utility model, the second guide rod is sleeved with an elastic element, the two ends of which are respectively connected to the cleaning plate and the mounting bracket, and the elastic element is used to assist the cleaning plate in resetting.
[0012] As a preferred embodiment of this utility model, the pull rope also includes a pull ring connected to one end.
[0013] As a preferred embodiment of this utility model, the mounting frame is further provided with a collection frame distributed in the front and rear, the collection frame being used to collect the debris generated during the grinding of the drive shaft.
[0014] As a preferred embodiment of this utility model, the mounting bracket is further provided with a warning sign.
[0015] As can be seen from the above description of the structure of this utility model, the design starting point, concept, and advantages of this utility model are:
[0016] 1. By turning on the electric fan, the dust inside the mounting frame is sucked into the mounting housing, preventing the dust from escaping and causing health hazards to the workers, and also preventing dust from polluting the air.
[0017] 2. By pulling down the rope, the cleaning plate moves downward to wipe the surface of the observation window, thus keeping the surface of the observation window clean and making it easier for staff to carefully check the polishing condition of the drive shaft.
[0018] 3. Collect the debris falling from the dust using a collection box for easy collection. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0020] Figure 2 This is a partial cross-sectional three-dimensional structural diagram of the present invention.
[0021] Figure 3 This is a partial three-dimensional structural diagram of the present invention.
[0022] Figure 4 This is a three-dimensional structural diagram of the dust collection mechanism of this utility model.
[0023] Figure 5 This is a partial cross-sectional perspective view of the dust collection mechanism of this utility model.
[0024] Figure 6 This is a three-dimensional structural diagram of the cleaning mechanism of this utility model.
[0025] The markings in the attached diagram are as follows: 1. Mounting bracket; 1001. Observation window; 2. Placement rack; 3. Triangular gripper; 301. Support frame; 4. Grinding wheel; 5. Motor; 6. Motor; 6001. Screw; 7. First guide rod; 8. Electric push rod; 9. Vacuuming mechanism; 90. Filter screen; 91. Mounting housing; 92. Electric fan; 93. Collection box; 10. Cleaning mechanism; 100. Cleaning plate; 101. Second guide rod; 102. Elastic element; 103. Pull rope; 11. Collection frame; 12. Warning sign. Detailed Implementation
[0026] The present invention will be further described below with reference to specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention. Example 1
[0027] A grinding device for the end face of the main drive shaft of a track brake, see reference. Figures 1-6As shown, the system includes a mounting frame 1, with an observation window 1001 embedded within it for viewing. A placement frame 2 is bolted inside the mounting frame 1 to hold the drive shaft. A triangular clamp 3 is bolted inside the mounting frame 1 to hold the drive shaft. Electric push rods 8, distributed left and right, are bolted to the mounting frame 1. A first guide rod 7 is welded to the electric push rods 8, passing through a support frame 301 for guidance. A motor 6 is bolted to the side of the first guide rod 7 closest to the triangular clamp 3. The output shaft of the motor 6 is connected to a screw 6001 via a coupling. The screw 6001 is threaded to the support frame 301, which contacts the inner wall of the mounting frame 1 to assist in smooth movement. A motor 5 is bolted to the support frame 301, and a grinding wheel 4 is rotatably connected to the support frame 301. For grinding the end face of the drive shaft, the output shaft of the motor 5 passes through the support frame 301 and is keyed to the grinding wheel 4. It also includes a dust collection mechanism 9. The mounting frame 1 is equipped with a dust collection mechanism 9 to absorb the dust generated during the grinding of the drive shaft. The dust collection mechanism 9 includes a filter screen 90, a mounting shell 91, an electric fan 92, and a collection box 93. The mounting frame 1 is connected to the filter screen 90 by bolts. The filter screen 90 is connected to the mounting shell 91 by welding. The electric fan 92 is connected to the inside of the mounting shell 91 by bolts. The collection box 93 is slidably connected to the mounting shell 91 to collect the deposited dust. The collection box 93 is connected to a pull rod to increase the contact area between the worker's hand and the collection box 93. The mounting frame 1 is connected to front and rear distributed collection frames 11 by bolts to collect the debris generated during the grinding of the drive shaft. The mounting frame 1 is connected to a warning sign 12 by bolts.
[0028] When grinding the drive shaft, the operator first activates the electric push rod 8, extending its telescopic rod to move the first guide rod 7, support frame 301, and grinding wheel 4 upwards. Then, the triangular clamp 3 opens, placing the drive shaft on the mounting frame 2. Next, the operator tightens the triangular clamp 3 to hold the drive shaft, and then shortens the telescopic rod 8, moving the first guide rod 7, support frame 301, and grinding wheel 4 downwards until the grinding wheel 4 contacts the end face of the drive shaft. The operator then activates the motor 5, whose output shaft rotates to grind the end face of the drive shaft. Finally, the operator activates the motor 6, whose output shaft rotates to rotate the screw 6001, causing the support frame 301 to move the grinding wheel 4. This allows the grinding wheel 4 to flexibly adapt to drive shafts of different specifications. During grinding, dust is generated and dispersed into the mounting frame 1. The staff turns on the electric fan 92, which rotates to suck the dust in the mounting frame 1 into the mounting housing 91. The filter screen 90 filters the debris in the dust, and the filtered debris falls into the collection frame 11 for collection, so as to prevent the dust from escaping and causing health hazards to the staff, and to prevent dust from polluting the air. During the dust filtration, the warning sign 12 serves as a warning to remind unauthorized personnel to stay away from the equipment. The staff checks the grinding of the drive shaft through the observation window 1001. After grinding is completed, the staff turns off the motor 5, motor 6 and electric fan 92, and then operates the triangular gripper 3 to open and remove the drive shaft from the mounting frame 2. After turning off the electric fan 92, the dust in the mounting housing 91 settles into the collection box 93. The staff pulls the collection box 93 out of the mounting housing 91, pours out the dust in the collection box 93, and then pushes the collection box 93 back into the mounting housing 91. Example 2
[0029] Based on Example 1, see [link to Example 1] Figure 1 and Figure 6 As shown, the device also includes a mounting frame 1 with a cleaning mechanism 10 for cleaning the surface of the observation window 1001. The cleaning mechanism 10 includes a cleaning plate 100, a second guide rod 101, an elastic element 102, and a pull rope 103. The mounting frame 1 is connected by welding to the second guide rods 101 distributed on the left and right. The cleaning plate 100 is slidably connected between the two second guide rods 101. The cleaning plate 100 is in contact with the surface of the observation window 1001. The cleaning plate 100 is connected to the pull rope 103. One end of the pull rope 103 is connected to a pull ring. The pull ring is used to increase the contact area between the worker's hand and the pull rope 103. By pulling the pull rope 103 downward, the cleaning plate 100 wipes the surface of the observation window 1001. The second guide rod 101 is fitted with an elastic element 102. The two ends of the elastic element 102 are respectively connected to the cleaning plate 100 and the mounting frame 1. The elastic element 102 is used to assist the cleaning plate 100 in resetting.
[0030] During the polishing process, dust will adhere to the surface of the observation window 1001. The staff will pull down the pull rope 103, which will cause the cleaning plate 100 to move downward to wipe the surface of the observation window 1001. The elastic element 102 will be compressed accordingly, thereby keeping the surface of the observation window 1001 clean, so that the staff can carefully check the polishing of the drive shaft.
[0031] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A grinding device for the end face of a main drive shaft of a track brake, comprising a mounting frame (1), wherein the mounting frame (1) is embedded with an observation window (1001) for viewing the condition, a placement frame (2) is installed inside the mounting frame (1) for placing the drive shaft, a triangular gripper (3) is installed inside the mounting frame (1) for clamping the drive shaft, and electric push rods (8) distributed on the left and right sides are mounted on the mounting frame (1). The electric push rods (8) are fixedly connected to a first guide rod (7), and the first guide rod (7) is close to the triangular gripper (3). A motor (6) is installed on one side of the drive shaft. The output shaft of the motor (6) is connected to a screw (6001) via a coupling. The screw (6001) is threadedly connected to a support frame (301). The first guide rod (7) passes through the support frame (301) for guidance. A motor (5) is installed on the support frame (301). A grinding wheel (4) is rotatably connected to the support frame (301) for grinding the end face of the drive shaft. The output shaft of the motor (5) passes through the support frame (301) and is keyed to the grinding wheel (4). The characteristic is that... It also includes a dust collection mechanism (9), and the mounting frame (1) is provided with a dust collection mechanism (9) for absorbing the dust generated during the grinding of the drive shaft.
2. The grinding device for the end face of the main drive shaft of a track brake as described in claim 1, characterized in that, The dust collection mechanism (9) includes a filter screen (90), a mounting shell (91), an electric fan (92), and a collection box (93). The mounting frame (1) is equipped with a filter screen (90), the filter screen (90) is fixedly connected to the mounting shell (91), the electric fan (92) is installed inside the mounting shell (91), and the collection box (93) is slidably connected to the mounting shell (91) for collecting deposited dust.
3. The grinding device for the end face of the main drive shaft of a track brake as described in claim 2, characterized in that, It also includes the support frame (301) in contact with the inner wall of the mounting frame (1).
4. The grinding device for the end face of the main drive shaft of a track brake as described in claim 3, characterized in that, It also includes the collection box (93) connected to a pull rod.
5. The grinding device for the end face of the main drive shaft of a track brake as described in claim 4, characterized in that, The mounting bracket (1) is equipped with a cleaning mechanism (10) for cleaning the surface of the observation window (1001). The cleaning mechanism (10) includes a cleaning plate (100), a second guide rod (101), an elastic element (102), and a pull rope (103). The mounting bracket (1) is fixedly connected with the second guide rods (101) distributed on the left and right. The cleaning plate (100) is slidably connected between the two second guide rods (101). The cleaning plate (100) is in contact with the surface of the observation window (1001). The cleaning plate (100) is connected to the pull rope (103).
6. The grinding device for the end face of the main drive shaft of a track brake as described in claim 5, characterized in that, It also includes a second guide rod (101) fitted with an elastic element (102), the two ends of which are connected to the cleaning plate (100) and the mounting bracket (1) respectively.
7. The grinding device for the end face of the main drive shaft of a track brake as described in claim 6, characterized in that, It also includes a pull ring connected to one end of the pull rope (103).
8. The grinding device for the end face of the main drive shaft of a track brake as described in claim 7, characterized in that, It also includes the mounting frame (1) with front and rear distributed collection frames (11) for collecting the debris generated during the grinding of the drive shaft.
9. A grinding device for the end face of the main drive shaft of a track brake as described in claim 8, characterized in that, It also includes the mounting bracket (1) on which a warning sign (12) is mounted.