Car puller positioning device of car dumper system

Abstract

The invention provides a car puller positioning device of a car dumper system, which relates to the technical field of loading and unloading machinery, and comprises a base, guide rails are symmetrically arranged on the front and rear sides of the base, guide wheels are symmetrically arranged on the left and right sides of the guide rails, the guide wheels are in rolling contact with the guide rails, and the guide wheels are mounted at the top corners of the lower end of a car puller; the infrared transmitter is mounted in the middle of the lower end of the car puller; a plurality of infrared receivers are evenly distributed on the positioning rail at intervals in the length direction, the infrared receivers are used for receiving infrared rays emitted by the infrared emitter, and the infrared receivers are electrically connected with the first alarm through the first controller. The infrared receiver controls the alarm to work through the first controller, and a worker is reminded that the car puller deviates in the front-back direction and needs to adjust the position of the car puller in time.

Description

Technical Field

[0001] The invention relates to the technical field of loading and unloading machinery, in particular to a car tipping machine positioning device of a car tipping machine system. Background Art

[0002] As an important source of coal for the coal transportation system, the car tipping machine system is a loading and unloading machine that can flip or tilt rail vehicles to unload materials. It is suitable for ports with large transportation volumes and industrial sectors such as metallurgy, coal, and thermal power. The car tipping machine system includes a car tipping machine, a car pusher, a car shoveling machine, and a car body. The car shoveling machine is used to pull and push loaded car bodies into the car tipping machine, and the car pusher is used to push out empty car bodies. When the car shoveling machine tows the car body, it is necessary to first connect its own hook with the hook of the car body. When the car shoveling machine is running, there is a gap problem in the gears, which affects the accurate positioning of the car shoveling machine, resulting in improper connection between the car shoveling machine and the car body, and even causes a mechanical collision between the car shoveling machine and the train car body, affecting work efficiency and easily causing safety accidents. Summary of the invention

[0003] The present invention provides a car shifter positioning device of a car tipping machine system, which is used to solve the technical problem that there is a gap between the gears of the car shifter when the car shifter is running, thereby affecting the accurate positioning of the car shifter, resulting in improper connection between the car shifter and the car body, and even causing a mechanical collision between the car shifter and the train body, affecting work efficiency, and easily causing safety accidents.

[0004] In order to solve the above technical problems, the present invention discloses a car pushing machine positioning device of a car tipping machine system, comprising a base, guide rails are symmetrically provided on the front and rear sides of the base, guide wheels are symmetrically provided on the left and right sides of the guide rails, the guide wheels are in rolling contact with the guide rails, the guide wheels are installed at the top corner of the lower end of the car pushing machine, a positioning track is installed in the middle of the upper end of the base, and an infrared positioning component is correspondingly installed between the middle of the lower end of the car pushing machine and the positioning track.

[0005] Preferably, the infrared positioning component includes an infrared transmitter, and the infrared transmitter is installed in the middle of the lower end of the car shifting machine.

[0006] Preferably, a plurality of infrared receivers are evenly spaced along the length direction of the positioning track, the infrared receivers are used to receive infrared rays emitted by the infrared transmitter, and the infrared receivers are electrically connected to the alarm through the controller.

[0007] Preferably, positioning wheels are symmetrically arranged on the left and right parts of the front and rear sides of the positioning track, the positioning wheels are mounted on the lower end of the car shifting machine, and the positioning wheels are in rolling contact with the positioning track.

[0008] Preferably, a rack is installed on the lower side of the positioning track, and a plurality of gears are meshed on the rack. The plurality of gears are fixedly connected with a plurality of connecting shafts in a one-to-one correspondence. The connecting shaft passes through the lower end of the car shifting machine and enters the internal cavity of the car shifting machine and is fixedly connected to the drive motor. The drive motor is fixedly arranged in the cavity.

[0009] Preferably, it also includes a cleaning mechanism, which includes a rotating shaft symmetrically arranged on the front and rear sides of the cavity, the rotating shaft is fixedly connected to pulley one, pulley one is connected to pulley two through a conveyor belt, pulley two is fixedly arranged on a connecting shaft close to one side of the rotating shaft, the rotating shaft passes through the lower end of the cavity and is fixedly connected to a cleaning brush, and the cleaning brush is correspondingly arranged on the upper side of the positioning track.

[0010] Preferably, it also includes a shifting mechanism, which includes a mounting seat rotatably connected to the positioning wheel, the mounting seat is fixedly connected to the matching block, the matching block passes through the side end of the fixed shell and enters the fixed cavity, the fixed cavity is arranged inside the fixed shell, the fixed shell is fixedly connected to the lower end of the car shifting machine through the fixed block, the inclined end of the matching block is slidably connected to the inclined end of the contact block, the contact block is fixedly connected to the threaded rod, the threaded rod is threadedly connected to the threaded sleeve, the threaded sleeve passes through the lower end of the car shifting machine and enters the cavity, and the threaded sleeve is rotatably connected to the lower end of the car shifting machine, the threaded sleeve is fixedly connected to the working gear 1, the working gear 1 is meshed with the working gear 2, the working gear 2 is fixedly connected to the motor, and the motor is fixedly arranged in the cavity.

[0011] Preferably, the threaded rod passes through the upper end of the threaded sleeve and is fixedly connected to the sliding plate, the sliding plate is slidably connected to the cavity, a laser rangefinder is fixedly provided on the upper end of the sliding plate, the laser rangefinder is correspondingly arranged with the receiving plate, and the receiving plate is fixedly arranged at the upper end of the cavity.

[0012] Preferably, the method further comprises a gear wear monitoring method, comprising the following steps:

[0013] Step 1: Install a force sensor on the hook section of the car pusher to detect the traction force required by the car pusher to pull the car skin;

[0014] Step 2: Install a speed sensor on the connecting shaft to detect the speed of the connecting shaft;

[0015] Step 3: Install an alarm on the car shifter;

[0016] Step 4: electrically connect the force sensor, the speed sensor and the second alarm through the second controller;

[0017] Step 5: Controller 1 calculates the theoretical wear degree of the gear according to the detection value of the force sensor, the detection value of the speed sensor and formula (1);

[0018]

[0019] Among them, S is the theoretical wear degree of the gear, F is the detection value of the force sensor, F1 is the friction force between several guide wheels and guide rails, F2 is the friction force between several positioning wheels and positioning rails, cos is cosine, κ is the meshing angle between the gear and the rack, λ is the helix angle of the gear, E is the elastic modulus of the gear, C1 is the tooth root height of the gear, C is the tooth root height of the rack, R is the pitch circle diameter of the gear, sin is sine, α is the pressure angle between the gear and the rack, N is the detection value of the speed sensor, T is the speed of the drive motor, K1 is the modification coefficient of the meshing surface of the gear and the rack, K2 is the lubrication coefficient between the gear and the rack, J is the wear rate of the gear, m is the number of gears, and V is the tooth width of the gear;

[0020] Step 6: Controller 2 compares the calculated theoretical wear degree of the gear with the preset wear degree. If the calculated theoretical wear degree is greater than the preset wear degree, the controller controls alarm 2 to work, reminding the staff to maintain and replace the gear in time.

[0021] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 It is a schematic diagram of the top view structure of the present invention;

[0025] Figure 3 It is a schematic diagram of the side structure of the shifting mechanism of the present invention.

[0026] In the figure: 1. base; 2. guide rail; 3. guide wheel; 4. positioning track; 5. rack; 6. infrared receiver; 7. gear; 8. connecting shaft; 9. driving motor; 10. car shifter; 11. cavity; 12. pulley 2; 13. conveyor belt; 14. pulley 1; 15. rotating shaft; 16. cleaning brush; 17. positioning wheel; 18. mounting seat; 19. fixed shell; 20. matching block; 21. fixed cavity; 22. threaded sleeve; 23. working gear 1; 24. threaded rod; 25. sliding plate; 26. motor; 27. working gear 2; 28. fixed block; 29. ​​receiving plate; 30. laser rangefinder; 31. contact block. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0028] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0029] The present invention provides the following embodiments

[0030] Example 1

[0031] The embodiment of the present invention provides a positioning device for a car tipping machine of a car tipping machine system, such as Figure 1-Figure 3 As shown, it includes a base 1, guide rails 2 are symmetrically arranged on the front and rear sides of the base 1, guide wheels 3 are symmetrically arranged on the left and right sides of the guide rails 2, the guide wheels 3 are in rolling contact with the guide rails 2, and the guide wheels 3 are installed at the top corner of the lower end of the car shifting machine 10, a positioning track 4 is installed in the middle of the upper end of the base 1, and an infrared positioning component is correspondingly installed between the middle of the lower end of the car shifting machine 10 and the positioning track 4;

[0032] The infrared positioning assembly includes an infrared transmitter, which is installed in the middle of the lower end of the car shifting machine 10;

[0033] A plurality of infrared receivers 6 are evenly spaced along the length direction of the positioning track 4. The infrared receivers are used to receive infrared rays emitted by the infrared transmitter. The infrared receivers 6 are electrically connected to the alarm device 1 through the controller 1.

[0034] The beneficial effects of the above technical solution are:

[0035] When the car shifting machine 10 moves, the guide wheel 3 rolls along the guide rail 2. The arrangement of the guide rail 2 and the guide wheel 3 supports and guides the movement of the car shifting machine 10. A plurality of infrared receivers 6 are arranged on the positioning rail 4. The infrared transmitter is installed on the car shifting machine 10. When the car shifting machine 10 moves, it can drive the infrared transmitter to move. The infrared receiver 6 can receive the infrared rays emitted by the infrared transmitter. If, during the movement of the car shifting machine 10, the plurality of infrared receivers 6 on the positioning rail 4 cannot receive the infrared rays, it indicates that the car shifting machine 10 has deviated during its movement. The infrared receiver 6 controls the alarm through the controller 1 to remind the staff that the car shifting machine 10 has deviated in the front-rear direction. The position of the car shifting machine 10 should be adjusted in time to avoid the car shifting machine 10 being unable to be hung in place when it is deviated, or even causing a mechanical collision with the train skin. The problem of gear clearance during the operation of the car shifting machine is solved, thereby affecting the accurate positioning of the car shifting machine, resulting in the inadequate hanging of the car shifting machine and the train skin, or even causing a mechanical collision between the car shifting machine and the train skin, affecting work efficiency, and easily causing technical problems of safety accidents.

[0036] Example 2

[0037] On the basis of Example 1, Figure 1-Figure 3 As shown, the positioning wheels 17 are symmetrically arranged on the left and right parts of the front and rear sides of the positioning track 4. The positioning wheels 17 are installed at the lower end of the car shifting machine 10, and the positioning wheels 17 are in rolling contact with the positioning track 4;

[0038] A rack 5 is installed on the lower side of the positioning track 4, and a plurality of gears 7 are meshed on the rack 5. The plurality of gears 7 are fixedly connected with a plurality of connecting shafts 8 in a one-to-one correspondence. The connecting shafts 8 penetrate the lower end of the car shifting machine 10 and enter the internal cavity 11 of the car shifting machine 10 and are fixedly connected with the driving motor 9. The driving motor 9 is fixedly arranged in the cavity 11;

[0039] It also includes a cleaning mechanism, which includes a rotating shaft 15 symmetrically arranged on the front and rear sides of the cavity 11, the rotating shaft 15 is fixedly connected to the pulley 14, the pulley 14 is connected to the pulley 2 12 through the conveyor belt 13, the pulley 2 12 is fixedly arranged on the connecting shaft 8 close to the side of the rotating shaft 15, the rotating shaft 15 passes through the lower end of the cavity 11 and is fixedly connected to the cleaning brush 16, and the cleaning brush 16 is correspondingly arranged on the upper side of the positioning track 4.

[0040] The beneficial effects of the above technical solution are:

[0041] The arrangement of the positioning wheel 17 guides the movement of the car shifting machine 10 when the positioning wheel 17 rolls and contacts along the positioning track 4, thereby reducing the probability of the car shifting machine 10 being offset. When the driving motor 9 is working, it drives the connecting shaft 8 to rotate, and the connecting shaft 8 drives the gear 7 to rotate. Since the rack 5 is fixedly arranged, the gear 7 moves along the rack 5 when it rotates, thereby driving the car shifting machine 10 to move. When the connecting shaft 8 rotates, it also drives the pulley 2 12 to rotate. The pulley 2 12 drives the pulley 1 14 to rotate through the conveyor belt 13. The pulley 1 14 drives the rotating shaft 15 to rotate. The rotating shaft 15 drives the cleaning brush 16 to rotate. The cleaning brush 16 rotates to clean the upper end of the positioning track 4. The positioning track 4 can be cleaned during the movement of the car shifting machine 10 to avoid affecting the effect of the infrared receiver 6 in receiving infrared rays.

[0042] Example 3

[0043] On the basis of Example 2, Figure 1-Figure 3 As shown, it also includes a shift mechanism, which includes a mounting seat 18 rotatably connected to the positioning wheel 17, the mounting seat 18 is fixedly connected to the matching block 20, the matching block 20 penetrates the side end of the fixed shell 19 and enters the fixed cavity 21, the fixed cavity 21 is arranged inside the fixed shell 19, the fixed shell 19 is fixedly connected to the lower end of the car shifting machine 10 through the fixed block 28, the inclined end of the matching block 20 is slidably connected to the inclined end of the contact block 31, the contact block 31 is fixedly connected to the threaded rod 24, the threaded rod 24 is threadedly connected to the threaded sleeve 22, the threaded sleeve 22 penetrates the lower end of the car shifting machine 10 and enters the cavity 11, and the threaded sleeve 22 is rotatably connected to the lower end of the car shifting machine 10, the threaded sleeve 22 is fixedly connected to the working gear 1 23, the working gear 1 23 is meshed with the working gear 2 27, the working gear 2 27 is fixedly connected to the motor 26, and the motor 26 is fixedly arranged in the cavity 11;

[0044] The threaded rod 24 passes through the upper end of the threaded sleeve 22 and is fixedly connected to the sliding plate 25. The sliding plate 25 is slidably connected to the cavity 11. A laser rangefinder 30 is fixedly provided on the upper end of the sliding plate 25. The laser rangefinder 30 is correspondingly arranged with a receiving plate 29. The receiving plate 29 is fixedly arranged at the upper end of the cavity 11.

[0045] The beneficial effects of the above technical solution are:

[0046] After the gear 7 rotates and moves along the rack 5 for a certain period of time, the gear 7 is worn and the gap between the gear 7 and the rack 5 changes, and the car shifting machine 10 is offset in the front-to-back direction. At this time, the motor 26 can be directly controlled by the controller 1 to work, and the motor 26 drives the working gear 27 to rotate, and the working gear 27 drives the working gear 1 23 to rotate, and the working gear 1 23 drives the threaded sleeve 22 to rotate. When the threaded sleeve 22 rotates, it drives the threaded rod 24 to move up and down, and the threaded rod 24 drives the sliding plate 25 to slide along the cavity 11, and the sliding plate 25 drives the laser rangefinder 30 to move. The detection value of the laser rangefinder 30 is used to detect the distance between the sliding plate 25 and the upper end of the cavity 11, so as to obtain the moving distance of the sliding plate 25, and the threaded rod 24 drives the contact block 31 to move downward, the contact block 31 slides along the inclined end of the matching block 20, and pushes the matching block 20 to move, the matching block 20 drives the mounting seat 18 to move, the mounting seat 18 drives the positioning wheel 17 to move, and the distance moved by the positioning wheel 17 is the product of the detection value of the laser rangefinder 30 connected thereto and tanq, q is the inclination angle of the inclined end of the matching block 20, when the positioning wheels 17 on the front and rear sides move, since the positioning track 4 is fixed, the car shifting machine 10 is driven to move in the front and rear directions until the infrared receiver 6 can receive the infrared light emitted by the infrared transmitter again, and the controller controls the motor 26 to stop working, thereby achieving the purpose of automatically adjusting the position of the car shifting machine 10 and avoiding the transmission deviation of the car shifting machine 10.

[0047] Example 4

[0048] On the basis of embodiment 3, a method for monitoring the wear of the gear 7 is also included, comprising the following steps:

[0049] Step 1: A force sensor is installed on the hook section of the car pusher 10 to detect the traction force required by the car pusher 10 when pulling the car skin;

[0050] Step 2: Install a speed sensor on the connecting shaft 8 to detect the speed of the connecting shaft 8;

[0051] Step 3: Install an alarm 2 on the car shifting machine 10;

[0052] Step 4: electrically connect the force sensor, the speed sensor and the second alarm through the second controller;

[0053] Step 5: Controller 1 calculates the theoretical wear degree of gear 7 according to the detection value of the force sensor, the detection value of the speed sensor and formula (1);

[0054]

[0055] Wherein, S is the theoretical wear degree of the gear 7, F is the detection value of the force sensor, F1 is the friction force between the guide wheels 3 and the guide rail 2, F2 is the friction force between the positioning wheels 17 and the positioning rail 4, cos is the cosine, κ is the meshing angle between the gear 7 and the rack 5, λ is the helix angle of the gear 7, E is the elastic modulus of the gear 7, C1 is the tooth root height of the gear 7, C is the tooth root height of the rack 5, R is the pitch circle diameter of the gear 7, sin is the sine, α is the pressure angle between the gear 7 and the rack 5, N is the detection value of the speed sensor, T is the speed of the drive motor 9, K1 is the modification coefficient of the meshing surface of the gear 7 and the rack 5, K2 is the lubrication coefficient between the gear 7 and the rack 5, J is the wear rate of the gear 7, m is the number of gears 7, and V is the tooth width of the gear 7;

[0056] Step 6: Controller 2 compares the calculated theoretical wear degree of gear 7 with the preset wear degree. If the calculated theoretical wear degree is greater than the preset wear degree, the controller controls alarm 2 to work, reminding the staff to maintain and replace gear 7 in time.

[0057] The beneficial effects of the above technical solution are:

[0058] A force sensor is installed on the hook section of the car pusher 10 to detect the traction force required when the car pusher 10 pulls the car skin; a speed sensor is installed on the connecting shaft 8 to detect the speed of the connecting shaft 8; an alarm 2 is installed on the car pusher 10; the force sensor, the speed sensor and the alarm 2 are electrically connected through the controller 2; the controller 1 calculates the theoretical wear degree of the gear 7 according to the detection value of the force sensor, the detection value of the speed sensor and the formula (1); the controller 2 compares the calculated theoretical wear degree of the gear 7 with the preset wear degree. If the calculated theoretical wear degree is greater than the preset wear degree, the controller controls the alarm 2 to work, reminding the staff to maintain and replace the gear 7 in time to avoid excessive wear of the gear 7 and affect the normal movement of the gear 7 along the rack 5.

[0059] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. The positioning device of the car tipping machine system is characterized by: The invention comprises a base (1), wherein guide rails (2) are symmetrically arranged on the front and rear sides of the base (1), guide wheels (3) are symmetrically arranged on the left and right sides of the guide rails (2), the guide wheels (3) are in rolling contact with the guide rails (2), the guide wheels (3) are installed at the top corner of the lower end of a car shifting machine (10), a positioning track (4) is installed at the middle of the upper end of the base (1), and an infrared positioning component is correspondingly installed between the middle of the lower end of the car shifting machine (10) and the positioning track (4).

2. The positioning device for a car tipping machine of a car tipping machine system according to claim 1, characterized in that: The infrared positioning component comprises an infrared transmitter, and the infrared transmitter is installed at the middle part of the lower end of the car shifting machine (10).

3. The positioning device for a car tipping machine of a car tipping machine system according to claim 2, characterized in that: A plurality of infrared receivers (6) are evenly arranged along the length direction of the positioning track (4). The infrared receivers (6) are used to receive infrared rays emitted by the infrared transmitter. The infrared receivers (6) are electrically connected to an alarm device (1) through a controller (1).

4. The positioning device for a car tipping machine of a car tipping machine system according to claim 1, characterized in that: The front and rear sides and left and right sides of the positioning track (4) are symmetrically provided with positioning wheels (17), which are mounted on the lower end of the car shifting machine (10), and the positioning wheels (17) are in rolling contact with the positioning track (4).

5. The positioning device for a car tipping machine of a car tipping machine system according to claim 1, characterized in that: A rack (5) is installed on the lower side of the positioning track (4), and a plurality of gears (7) are meshed on the rack (5). The plurality of gears (7) are fixedly connected to a plurality of connecting shafts (8) in a one-to-one correspondence. The connecting shafts (8) penetrate the lower end of the car shifting machine (10) and enter the internal cavity (11) of the car shifting machine (10) and are fixedly connected to the driving motor (9). The driving motor (9) is fixedly arranged in the cavity (11).

6. The positioning device for a car tipping machine of a car tipping machine system according to claim 1, characterized in that: The cleaning mechanism also includes a rotating shaft (15) symmetrically arranged on the front and rear sides of the cavity (11), the rotating shaft (15) being fixedly connected to a first pulley (14), the first pulley (14) being connected to a second pulley (12) via a conveyor belt (13), the second pulley (12) being fixedly arranged on a connecting shaft (8) close to one side of the rotating shaft (15), the rotating shaft (15) passing through the lower end of the cavity (11) and being fixedly connected to a cleaning brush (16), the cleaning brush (16) being correspondingly arranged on the upper side of the positioning track (4).

7. The positioning device for a car tipping machine of a car tipping machine system according to claim 4, characterized in that: The invention also includes a shift mechanism, which includes a mounting seat (18) rotatably connected to the positioning wheel (17), the mounting seat (18) being fixedly connected to a matching block (20), the matching block (20) penetrating the side end of the fixed shell (19) and entering into a fixed cavity (21), the fixed cavity (21) being arranged inside the fixed shell (19), the fixed shell (19) being fixedly connected to the lower end of the shifting machine (10) through the fixed block (28), the inclined end of the matching block (20) being slidably connected to the inclined end of the contact block (31), and the contact block (31) being arranged inside the fixed shell (19). 1) is fixedly connected to a threaded rod (24), the threaded rod (24) is threadedly connected to a threaded sleeve (22), the threaded sleeve (22) penetrates the lower end of the car shifting machine (10) and enters the cavity (11), and the threaded sleeve (22) is rotatably connected to the lower end of the car shifting machine (10), the threaded sleeve (22) is fixedly connected to a working gear 1 (23), the working gear 1 (23) is meshed with a working gear 2 (27), the working gear 2 (27) is fixedly connected to a motor (26), and the motor (26) is fixedly arranged in the cavity (11).

8. The positioning device for a car tipping machine of a car tipping machine system according to claim 7, characterized in that: The threaded rod (24) passes through the upper end of the threaded sleeve (22) and is fixedly connected to the sliding plate (25). The sliding plate (25) is slidably connected to the cavity (11). A laser rangefinder (30) is fixedly provided on the upper end of the sliding plate (25). The laser rangefinder (30) is correspondingly arranged with a receiving plate (29). The receiving plate (29) is fixedly arranged on the upper end of the cavity (11).

9. The positioning device for a car tipping machine of a car tipping machine system according to claim 5, characterized in that: Also included is a method for monitoring the wear of a gear (7), comprising the following steps: Step 1: A force sensor is installed on the hook section of the car pusher (10) to detect the traction force required by the car pusher (10) when pulling the car skin; Step 2: Install a rotation speed sensor on the connecting shaft (8) to detect the rotation speed of the connecting shaft (8); Step 3: Install an alarm device 2 on the car shifting machine (10); Step 4: electrically connect the force sensor, the speed sensor and the second alarm through the second controller; Step 5: The controller 1 calculates the theoretical wear degree of the gear (7) according to the detection value of the force sensor, the detection value of the speed sensor and formula (1); Wherein, S is the theoretical wear degree of the gear (7), F is the detection value of the force sensor, F1 is the friction force between the plurality of guide wheels (3) and the guide rail (2), F2 is the friction force between the plurality of positioning wheels (17) and the positioning rail (4), cos is the cosine, κ is the meshing angle between the gear (7) and the rack (5), λ is the helix angle of the gear (7), E is the elastic modulus of the gear (7), C1 is the tooth root height of the gear (7), and C is the rack (5) , R is the pitch circle diameter of the gear (7), sin is the sine, α is the pressure angle between the gear (7) and the rack (5), N is the detection value of the speed sensor, T is the speed of the drive motor (9), K1 is the modification coefficient of the meshing surface of the gear (7) and the rack (5), K2 is the lubrication coefficient between the gear (7) and the rack (5), J is the wear rate of the gear (7), m is the number of gears (7), and V is the tooth width of the gear (7); Step 6: The second controller compares the calculated theoretical wear degree of the gear (7) with the preset wear degree. If the calculated theoretical wear degree is greater than the preset wear degree, the controller controls the second alarm to work, reminding the staff to maintain and replace the gear (7) in time.

Images