Limiting protection device for stroke adjustment of rotating equipment
By designing a limit protection device including a return spring and a tensioning rod, the problem of high failure rate of traditional stroke protection switches in rotating equipment is solved, and the accurate transmission and protection of equipment displacement is achieved, and the use of the device is extended life.
Patent Information
- Application Number
- CN202420124097.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-18
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-01-18
AI Technical Summary
The traditional stroke protection switch has a high failure rate and a short life during use in rotary equipment. It is mainly due to the frequent damage to the limit protection switch due to the vibration of the equipment.
A limit protection device is designed, including a rotating roller, a support frame, a tensioning rod, a return spring, a spring baffle, a lock nut, a roller stroke adjustment nut, a stroke switch pressure plate and a limit protection switch, through the return spring The energy storage characteristics absorb vibration, avoid direct contact between the limit protection switch and use the tensioning rod to transmit displacement information to ensure that the switch works effectively.
It effectively avoids direct contact between the limit protection switch and the equipment, reduces the failure rate and extends the service life, and realizes reliable monitoring and protection of the displacement of the rotating equipment.
Smart Images
Figure CN222233485U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a limit protection device for adjusting the stroke of rotating equipment, belonging to the technical field of limit protection of rotating equipment. Background Art
[0002] In the construction and production process of mining enterprises, various large-scale mechanical equipment are widely used. Such equipment generally has the characteristics of long-term operation and large vibration. In order to avoid large position deviation during the operation of the equipment, especially the slippage of the hoist clutch type equipment, the usual practice is to install a stroke protection switch at the position where the equipment may deviate to monitor and protect the equipment. The traditional stroke protection switch is easy to install, but the reliability of monitoring rotating equipment is poor, and the equipment inevitably vibrates during operation. Therefore, the traditional stroke protection switch has a high failure rate during use and a generally low service life. Utility Model Content
[0003] The utility model aims to provide a limit protection device for adjusting the stroke of rotating equipment, which can avoid direct contact between the limit protection switch and the rotating equipment, resulting in frequent damage to the limit protection switch, and solve the problems existing in the background technology.
[0004] The technical solution of the utility model is:
[0005] A limit protection device for stroke adjustment of rotating equipment comprises a rotating roller, a support frame, a tensioning rod, a reset spring, a spring baffle, a locking nut, a roller stroke adjustment nut, a travel switch pressure plate, a pressure plate position adjustment nut and a limit protection switch, wherein a rotating roller is arranged at one end of the tensioning rod, a travel switch pressure plate and a pressure plate position adjustment nut are arranged at the other end of the tensioning rod, a support frame, a reset spring, a spring baffle, a locking nut and a roller stroke adjustment nut are arranged in the middle of the tensioning rod, wherein: the reset spring, the spring baffle and the locking nut are located between the rotating roller and the support frame, and the roller stroke adjustment nut is located between the support frame and the travel switch pressure plate; a limit protection switch is also arranged between the support frame and the travel switch pressure plate.
[0006] The support frame is fixed on the frame of the rotating equipment, and the rotating roller at one end of the tension rod is in contact with the rotating body of the rotating equipment that needs to be monitored and protected.
[0007] The rotating roller is rotatably connected to the tension rod via a pin.
[0008] The spring baffle is close to the rotating roller, and the locking nut is fixed on the tension rod, and the reset spring is arranged between the spring baffle and the support frame.
[0009] The roller stroke adjustment nut is threadedly connected to the tension rod and is close to the support frame.
[0010] The limit protection switch between the support frame and the travel switch pressure plate is fixed on the support frame through a bracket and matched with the travel switch pressure plate.
[0011] The utility model has the beneficial effects of preventing the limit protection switch from being in direct contact with rotating equipment, which would cause frequent damage to the limit protection switch, having a simple and reliable structure, being easy to adjust, and having strong on-site practicability. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the utility model;
[0013] In the figure: rotating roller 1, supporting frame 2, tension rod 3, reset spring 4, spring baffle 5, locking nut 6, roller stroke adjustment nut 7, stroke switch pressure plate 8, pressure plate position adjustment nut 9, limit protection switch 10, rotating equipment 11. DETAILED DESCRIPTION
[0014] The present invention will be further described below by way of examples with reference to the accompanying drawings.
[0015] Refer to the attached Figure 1 , a limit protection device for stroke adjustment of rotating equipment, comprising a rotating roller 1, a support frame 2, a tensioning rod 3, a reset spring 4, a spring baffle 5, a locking nut 6, a roller stroke adjustment nut 7, a travel switch pressure plate 8, a pressure plate position adjustment nut 9 and a limit protection switch 10, a rotating roller 1 is provided at one end of the tensioning rod 3, a travel switch pressure plate 8 and a pressure plate position adjustment nut 9 are provided at the other end of the tensioning rod 3, a support frame 2, a reset spring 4, a spring baffle 5, a locking nut 6 and a roller stroke adjustment nut 7 are provided in the middle of the tensioning rod 3, wherein: the reset spring 4, the spring baffle 5 and the locking nut 6 are located between the rotating roller 1 and the support frame 2, and the roller stroke adjustment nut 7 is located between the support frame 2 and the travel switch pressure plate 8; a limit protection switch 10 is also provided between the support frame 2 and the travel switch pressure plate 8.
[0016] In this embodiment, refer to the attached Figure 1 The device is an auxiliary protection device for rotating equipment. It is installed on the equipment frame through the support frame 2, and the rotating roller 1 is in contact with the rotating body of the equipment that needs to be monitored and protected. Through the close contact between the equipment and the rotating roller 1, the displacement of the monitored equipment is effectively transmitted.
[0017] The spring baffle 5 is close to the rotating roller 1, the locking nut 6 is fixed on the tension rod 3, and the reset spring 4 is arranged between the spring baffle 5 and the support frame 2. Through the energy storage and compressibility characteristics of the reset spring 4, the vibration of the equipment is absorbed and buffered during operation.
[0018] The limit protection switch 10 is fixed on the support frame 2 through a bracket and cooperates with the travel switch pressure plate 8. The position of the travel switch pressure plate 8 is adjusted by the pressure plate position adjustment nut 9, so that the travel switch pressure plate 8 and the limit protection switch 10 are effectively contacted. This avoids the limit protection switch 10 from directly contacting with the rotating equipment, causing frequent damage to the limit protection switch. At the same time, the displacement of the equipment during operation is accurately transmitted to the limit protection switch 10 through the tension rod 3, and finally the limit protection is reliably realized.
[0019] The working process of the utility model is as follows:
[0020] During the operation of the rotating device 11, the rotating roller 1 is in close contact with the monitored rotating device 11 and rotates synchronously with the rotating device 11. When the rotating device 11 is offset during operation, the rotating device 11 presses down the rotating roller 1, and the rotating roller 1 drives the spring baffle 5 to press down the reset spring 4 through the guide rod 3. The energy storage characteristics of the reset spring 4 realize the buffering function of the equipment vibration. The displacement of the rotating device 11 is accurately transmitted to the travel switch pressure plate 8 through the guide rod 3. The travel switch pressure plate 8 is in close contact with the travel protection switch 10. After the displacement of the travel switch pressure plate 8 reaches the set protection value of the travel protection switch 10, the travel protection switch 10 transmits the alarm and protection signal to the control system. At the same time, the compressibility of the reset spring 4 is utilized to realize the simple adjustment of the travel of the limit device by adjusting the nut 7.
Claims
1. A limit protection device for adjusting the stroke of rotating equipment, characterized in that: The invention comprises a rotating roller (1), a support frame (2), a tension rod (3), a reset spring (4), a spring baffle (5), a locking nut (6), a roller stroke adjustment nut (7), a travel switch pressure plate (8), a pressure plate position adjustment nut (9) and a limit protection switch (10). The rotating roller (1) is arranged at one end of the tension rod (3), and the travel switch pressure plate (8) and the pressure plate position adjustment nut (9) are arranged at the other end of the tension rod (3). The support frame (2), the reset spring (4), the spring baffle (5), the locking nut (6) and the roller stroke adjustment nut (7) are arranged in the middle of the tension rod (3), wherein the reset spring (4), the spring baffle (5) and the locking nut (6) are located between the rotating roller (1) and the support frame (2), and the roller stroke adjustment nut (7) is located between the support frame (2) and the travel switch pressure plate (8); and a limit protection switch (10) is also arranged between the support frame (2) and the travel switch pressure plate (8).
2. A limit protection device for stroke adjustment of rotating equipment according to claim 1, characterized in that: The support frame (2) is fixed on a frame of a rotating device, and the rotating roller (1) at one end of the tension rod (3) is in contact with a rotating body of the rotating device that needs to be monitored and protected.
3. A limit protection device for stroke adjustment of rotating equipment according to claim 2, characterized in that: The rotating roller (1) is rotatably connected to the tension rod (3) via a pin shaft.
4. A limit protection device for stroke adjustment of rotating equipment according to claim 1, characterized in that: The spring baffle (5) is close to the rotating roller (1) and is fixed on the tension rod (3) by a locking nut (6); the return spring (4) is arranged between the spring baffle (5) and the support frame (2).
5. A limit protection device for stroke adjustment of rotating equipment according to claim 1, characterized in that: The roller stroke adjustment nut (7) is threadedly connected to the tension rod (3) and is close to the support frame (2).
6. A limit protection device for stroke adjustment of rotating equipment according to claim 1, characterized in that: The limit protection switch (10) between the support frame (2) and the travel switch pressure plate (8) is fixed to the support frame (2) via a bracket and cooperates with the travel switch pressure plate (8).