Oil-resistant anti-lock point switch torque limiter
By adopting a ball bearing structure in the torque limiter of the switch machine, the problems of seizing caused by friction plate wear and slippage caused by improper lubrication are solved, achieving efficient and reliable torque transmission and preventing equipment seizing, thus improving the safety and ease of maintenance of the equipment.
Patent Information
- Application Number
- CN202423297567.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing friction-type torque limiters suffer from reduced friction coefficients after the friction plates wear down, affecting torque transmission sensitivity and making them prone to seizing. Furthermore, improper lubrication can lead to slippage, affecting the normal operation of the switch machine.
It adopts a ball bearing structure, including a gear support, turntable, pressure ball plate and torque adjusting nut. Through the design of ball bearings and springs, the torque limiter achieves rolling connection, prevents seizing, and maintains smooth rotation when there is too much lubricating oil.
It improves the working efficiency and reliability of the torque limiter, reduces the failure rate, has a simple structure, is easy to maintain, and is suitable for wide application.
Smart Images
Figure CN223498485U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of railway switch machine technology, and in particular to an oil-resistant anti-lock switch machine torque limiter. Background Technology
[0002] A torque limiter (also called a torque restrictor, safety coupling, safety clutch, or BMOOM limiter) is a component that connects the driving machine and the driven machine. Its main function is overload protection. When overload or mechanical failure causes the required torque to exceed a set value, the torque limiter limits the torque transmitted by the transmission system by slipping. Simultaneously, it outputs a signal to stop the motor and reducer. The connection automatically reconnects once the overload condition disappears. This prevents mechanical damage and avoids costly downtime losses.
[0003] The normal switching of signal switching equipment is inseparable from the torque limiter inside the switch machine. The existing torque limiter of the switch machine is a friction-type torque limiter.
[0004] Existing friction torque limiters use internal friction plates for friction connection. As the friction plates wear down, the coefficient of friction decreases, which in turn affects the sensitivity of torque transmission. This often leads to the friction torque limiter seizing up, affecting the normal switching of signal switch machines and endangering driving safety.
[0005] In addition, this friction torque limiter requires regular lubrication. If too much lubricant is added, it will affect the friction between the friction plates and reduce the frictional resistance between them, causing the friction torque limiter to slip and affecting the normal operation of the switch machine. Utility Model Content
[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing an oil-resistant, anti-locking torque limiter for switch machines that is simple in structure, easy to maintain, improves work efficiency, and prevents slippage and locking of the torque limiter.
[0007] To achieve the above objectives, the present invention adopts the following technical solution:
[0008] An oil-resistant anti-lock switch machine torque limiter includes a gear bracket, a turntable, a ball bearing plate, and a torque adjusting nut. The turntable is provided with at least one ball bearing and includes a bushing. The gear bracket is pressed against the turntable through one end of the bushing, and the turntable is pressed against the ball bearing plate through the other end of the bushing. The torque adjusting nut includes at least one spring and is pressed against the ball bearing plate through the spring.
[0009] Furthermore, the gear bracket includes a gear bracket boss with a gear bracket hole, through which the gear bracket is pressed against the turntable.
[0010] Furthermore, the turntable includes at least one ball bearing hole for placing a ball bearing, which is equidistantly arranged along the periphery of the turntable; the gear bracket boss includes at least one bracket blind hole; the position of the bracket blind hole corresponds to the position of the ball bearing hole.
[0011] Furthermore, one end of the bushing includes a bushing disc, which is disposed in the gear bracket hole, and the gear bracket is pressed against the turntable through the bushing disc.
[0012] Furthermore, the area of the turntable corresponds to the area of the gear support boss.
[0013] Furthermore, the turntable includes a turntable hole, through which the bushing is connected to the turntable.
[0014] Furthermore, the ball bearing plate includes a ball bearing plate hole, and the other end of the bushing is connected to the ball bearing plate through the ball bearing plate hole.
[0015] Furthermore, the torque adjusting nut includes a nut hole, and the other end of the bushing is connected to the torque adjusting nut through the nut hole via a pressure ball disc.
[0016] Furthermore, the torque adjusting nut is disc-shaped, and at least one locking block is provided along the outer side of the torque adjusting nut.
[0017] Furthermore, the outer side of the torque adjusting nut includes 2, 4, or 6 locking blocks, which are evenly spaced.
[0018] The beneficial effects of this utility model are as follows:
[0019] 1. This utility model includes a gear bracket, a turntable, a ball bearing plate, and a torque adjusting nut. The turntable has at least one ball bearing and includes a bushing. The gear bracket is pressed against the turntable via one end of the bushing, and the turntable is pressed against the ball bearing plate via the other end of the bushing. The torque adjusting nut includes at least one spring and is pressed against the ball bearing plate via the spring. This utility model improves the torque limiter of a switch machine into a ball bearing torque limiter, which not only has a simple structure and is easy to maintain, but also allows the friction plates to slide against each other through the balls, preventing the torque limiter from seizing up. This utility model is more convenient to use and greatly improves work efficiency.
[0020] 2. In the event of excessive lubricating oil, since this utility model is a ball-type torque limiter, the balls can better promote the rotation of the turntable and the pressure plate through the lubricating oil, thus preventing the phenomenon of excessive oil and greatly reducing the failure rate.
[0021] 3. This utility model has a simple structure, low cost, is safe and reliable to use, and is suitable for widespread application. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall structure of an oil-resistant anti-lock switch machine torque limiter proposed in this utility model;
[0023] Figure 2 This is another overall structural schematic diagram of an oil-resistant anti-lock switch machine torque limiter proposed in this utility model;
[0024] Figure 3 This is a disassembly diagram of an oil-resistant anti-lock switch torque limiter proposed in this utility model;
[0025] Figure 4 This is another disassembly diagram of an oil-resistant anti-lock switch machine torque limiter proposed in this utility model;
[0026] Figure 5 This is a third disassembly diagram of an oil-resistant anti-lock switch machine torque limiter proposed in this utility model;
[0027] Figure 6 This is a schematic diagram of the gear support structure of an oil-resistant anti-lock switch machine torque limiter proposed in this utility model;
[0028] Figure 7 This is a schematic diagram of the turntable structure of an oil-resistant anti-lock switch machine torque limiter proposed in this utility model;
[0029] Figure 8 This is a schematic diagram of the pressure plate structure of an oil-resistant anti-lock switch machine torque limiter proposed in this utility model;
[0030] Figure 9 This is a schematic diagram of the torque adjusting nut structure of an oil-resistant anti-lock switch machine torque limiter proposed in this utility model. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0032] In the description of this patent, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent. The terms "installation," "setting," "connection," "fixing," and "screw-on," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two elements or the interaction relationship between two elements. Unless otherwise explicitly defined, those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.
[0033] Example 1
[0034] See Figures 1 to 9 The torque limiter for an oil-resistant anti-lock switch machine includes a gear bracket 10, a turntable 20, a ball bearing plate 30, and a torque adjusting nut 40. The turntable 20 has at least one ball bearing and includes a bushing 50. The gear bracket 10 is pressed against the turntable 20 at one end of the bushing 50, and the turntable 20 is pressed against the ball bearing plate 30 at the other end of the bushing 50. The torque adjusting nut 40 includes at least one spring, and the torque adjusting nut 40 is pressed against the ball bearing plate 30 via the spring.
[0035] In this embodiment, preferably, the gears 10, turntable 20, and pressure ball disc 30 are disc-shaped, and the torque adjusting nut 40 is also disc-shaped.
[0036] In this embodiment, preferably, the gear bracket 10 mainly serves to support and fix the device, ensuring that the invention can work stably. The invention relies on the gear bracket 10, turntable 20, pressure ball plate 30, and torque adjusting nut 40 to achieve the torque limiting function.
[0037] When the machine operates under rated load, the gear bracket 10 ensures the torque limiter functions properly, resulting in a tighter, gapless connection between the turntable 20, the pressure plate 30, and the torque adjusting nut 40. Even if the turntable 20 and pressure plate 30 seize up and cannot rotate, the gear bracket 10 can drive the torque adjusting nut 40 to continue rotating via the bushing 50, overcoming the seizure and improving work efficiency.
[0038] In this embodiment, and more preferably, the torque adjusting nut 40 is used to adjust the torque force of the present invention, which is more in line with actual requirements.
[0039] In this embodiment, the turntable 20 may include a plurality of balls; in this embodiment, the turntable 20 is provided with a first ball 203 and a second ball 204; the plurality of balls may be arranged along the periphery of the turntable 20; further, preferably, the plurality of balls may be arranged at equal intervals along the periphery of the turntable 20.
[0040] In this embodiment, one side of the turntable 20 is pressed together with the gear bracket 10 through one end of the bushing 50; the other side of the turntable 20 is pressed together with one side of the pressure ball plate 30 through the other end of the bushing 50; multiple springs can be provided on the torque adjusting nut 40. In this embodiment, preferably, the torque adjusting nut 40 includes a first spring 403 and a second spring 404; the multiple springs can be arranged around the torque adjusting nut 40, preferably, the multiple springs are arranged at equal intervals around the torque adjusting nut.
[0041] In this embodiment, the torque adjusting nut 40 is pressed together with the other side of the pressure ball plate 30 by multiple springs; the bushing 50 passes through the pressure ball plate 30 and the torque adjusting nut 40, so that the turntable 20, the pressure ball plate 30 and the torque adjusting nut 40 are pressed together.
[0042] In this embodiment, the turntable 20 is pressed together with the pressure plate 30 by multiple balls. When there is too much lubricating oil, the lubricating oil can drive the multiple balls to rotate more smoothly, so that the turntable 20 and the pressure plate 30 can rotate more smoothly. This not only prevents the seizing state, but also helps to prevent excessive oil.
[0043] See Figure 3 , Figure 4 , Figure 5 , Figure 6 In this embodiment, preferably, the gear bracket 10 includes a gear bracket boss 11, which has a gear bracket hole 12. The gear bracket 10 is pressed together with the turntable 20 through the gear bracket hole 12 via a bushing 50.
[0044] In this embodiment, more preferably, one end of the bushing 50 includes a disc-shaped bushing disk 51. The bushing 50 is engaged with the gear bracket hole 12 through the disc-shaped bushing disk 51, so that the gear bracket 10 and the turntable 20 are pressed more tightly and firmly, making the use safer and more reliable.
[0045] See Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7In this embodiment, preferably, the turntable 20 includes at least one ball bearing hole for placing a ball bearing; further preferably, the turntable can be provided with multiple ball bearing holes; in this embodiment, the turntable 20 includes a first ball bearing hole 201 and a second ball bearing hole 202; the first ball bearing 203 and the second ball bearing 204 can be respectively disposed in the first ball bearing hole 201 and the second ball bearing hole 202;
[0046] The plurality of ball bearing holes can be equidistantly arranged along the periphery of the turntable 20; the gear bracket boss 11 includes at least one bracket blind hole; more preferably, the gear bracket boss 11 can include a plurality of bracket blind holes, which are arranged along the periphery of the gear bracket boss 11; the position of the bracket blind hole corresponds to the position of the ball bearing hole.
[0047] In this embodiment, the gear bracket boss 11 includes a first bracket blind hole 111 and a second bracket blind hole 112;
[0048] In this embodiment, and more preferably, the area of the turntable 20 corresponds to the area of the gear bracket boss 11.
[0049] In this embodiment, when the gear bracket 10 is pressed against the turntable 20 through one end of the bushing 50, one side of the first ball bearing 203 and the second ball bearing 204 in the turntable 20 can be respectively disposed in the first ball bearing hole 201 and the second ball bearing hole 202; the other side of the first ball bearing 203 and the second ball bearing 204 can be respectively disposed in the first bracket blind hole 111 and the second bracket blind hole 112, so that the gear bracket 10 and the turntable 20 are more tightly and stably connected.
[0050] In this embodiment, and more preferably, the gear bracket 10 may also be provided with a plurality of through holes around its periphery; the plurality of through holes may be provided at equal intervals along the periphery of the gear bracket 10; in this embodiment, the periphery of the gear 10 includes a first through hole 101 and a second through hole 102.
[0051] In this embodiment, preferably, the turntable 20 includes a turntable hole 21. More preferably, the turntable hole 21 is located at the center of the turntable 20; the bushing 50 is connected to the turntable 20 through the turntable hole 21.
[0052] See Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 In this embodiment, preferably, the ball bearing plate 30 includes a ball bearing plate hole 31, and the other end of the bushing 50 is connected to the ball bearing plate 30 through the ball bearing plate hole 31.
[0053] In this embodiment, the bushing 50 is connected to the pressure plate 30 through the turntable hole 21 and the pressure plate hole 31; the gear bracket 10 presses the turntable 20 and the pressure plate 30 together through the turntable hole 21 and the pressure plate hole 31 of the bushing 50.
[0054] In this embodiment, preferably, a plurality of protrusions are provided around the ball bearing plate 30. The plurality of protrusions are arranged at equal intervals around the ball bearing plate 30, and the positions of the plurality of protrusions correspond to the positions of the plurality of ball holes on the turntable 20. The plurality of protrusions are used to hold the plurality of balls, so that the ball bearing plate 30 and the turntable 20 press against each other and rotate more smoothly.
[0055] In this embodiment, the ball-pressing disc 30 includes a first protrusion 301, a second protrusion 302, a third protrusion 33, and a fourth protrusion 34. Further, preferably, the heights of the first protrusion 301 and the second protrusion 302 are lower than the heights of the third protrusion 33 and the fourth protrusion 34. Normally, the third protrusion 33 and the fourth protrusion 34 hold the balls in place, causing the turntable 20 and the ball-pressing disc 30 to rotate in contact. When the turntable 20 and the ball-pressing disc 30 are likely to seize up, causing them to rotate unevenly, the first protrusion 301 and the second protrusion 302 hold the balls in place to prevent them from seizing up and becoming unable to rotate.
[0056] See Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 In this embodiment, preferably, the torque adjusting nut 40 includes a nut hole 41. More preferably, the nut hole 41 is located at the center of the torque adjusting nut 40. The other end of the bushing 50 is connected to the torque adjusting nut 40 through the nut hole 41 via the pressure ball 30.
[0057] In this embodiment, the gear bracket 10 is pressed together with the turntable 20 and the pressure ball plate 30 through the bushing 50, and then the other end of the bushing 50 passes through the nut hole 41 and is pressed together with the torque adjusting nut 40, making the connection of this utility model tighter and the use safer and more reliable.
[0058] In this embodiment, preferably, the torque adjusting nut 40 is disc-shaped, and at least one locking block is provided along the outer side of the torque adjusting nut 40.
[0059] Furthermore, preferably, the outer side of the torque adjusting nut 40 includes 2, 4, or 6 locking blocks, which are evenly spaced.
[0060] In this embodiment, the outer side of the torque adjusting nut 40 includes a first locking block 42 and a second locking block 43, which are equally spaced along the outer side of the torque adjusting nut 40. The first locking block 42 and the second locking block 43 are used to connect external tools to lock the locking blocks, and then the torque adjusting nut 40 is rotated by the tool, making it more convenient to use.
[0061] This utility model can be made of stainless steel, which is resistant to high temperature and corrosion. This utility model has a simple structure, high practicality, and prevents oil and seizing. It is more convenient, flexible and safe to use.
[0062] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A torque limiter for an oil-resistant, anti-lock switch machine, characterized in that, It includes a gear bracket, a turntable, a ball bearing plate, and a torque adjusting nut; the turntable is provided with at least one ball bearing, the turntable includes a bushing, the gear bracket is pressed against the turntable through one end of the bushing, the turntable is pressed against the ball bearing plate through the other end of the bushing, and the torque adjusting nut includes at least one spring, the torque adjusting nut is pressed against the ball bearing plate through the spring.
2. The oil-resistant anti-lock switch machine torque limiter according to claim 1, characterized in that, The gear bracket includes a gear bracket boss with a gear bracket hole, through which the gear bracket is pressed against the turntable.
3. The oil-resistant anti-lock switch machine torque limiter according to claim 2, characterized in that, The turntable includes at least one ball bearing hole for placing a ball bearing, which is equidistantly arranged along the periphery of the turntable; the gear bracket boss includes at least one bracket blind hole; the position of the bracket blind hole corresponds to the position of the ball bearing hole.
4. The oil-resistant anti-lock switch torque limiter according to claim 3, characterized in that, One end of the bushing includes a bushing disc, which is disposed in the gear bracket hole, and the gear bracket is pressed against the turntable through the bushing disc.
5. The oil-resistant anti-lock switch machine torque limiter according to claim 4, characterized in that, The area of the turntable corresponds to the area of the gear support boss.
6. The oil-resistant anti-lock switch machine torque limiter according to claim 5, characterized in that, The turntable includes a turntable hole, through which the bushing is connected to the turntable.
7. The oil-resistant anti-lock switch machine torque limiter according to claim 6, characterized in that, The ball bearing plate includes a ball bearing plate hole, and the other end of the bushing is connected to the ball bearing plate through the ball bearing plate hole.
8. The oil-resistant anti-lock switch torque limiter according to claim 7, characterized in that, The torque adjusting nut includes a nut hole, and the other end of the bushing is connected to the torque adjusting nut through the nut hole via a pressure ball plate.
9. The oil-resistant anti-lock switch torque limiter according to any one of claims 1 to 8, characterized in that, The torque adjusting nut is disc-shaped, and at least one locking block is provided along the outer side of the torque adjusting nut.
10. The oil-resistant anti-lock switch machine torque limiter according to claim 9, characterized in that, The outer side of the torque adjusting nut includes 2, 4, or 6 locking blocks, which are evenly spaced.