Mining mechanical equipment transmission device with double encoders
By designing a dual encoder transmission device in mining machinery equipment, using PLC controllers to achieve encoder failover and structural enhancement, the problem of insufficient stability of a single encoder is solved and the stability and safety of production are ensured.
Patent Information
- Application Number
- CN202420998168.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-05-09
AI Technical Summary
The single encoder has limited stability in mining machinery and equipment, resulting in the failure of coal-loading and coke pushing operations, affecting the stable production of coke ovens.
Design a mining machinery and equipment transmission device with dual encoder, connect the PLC controller through the main encoder and the slave encoder to achieve failure switching, ensure production stability, and pass lip sealing ring, oil sealing device, shaft sleeve Structures such as washer sets improve the reliability of the transmission device.
By increasing redundancy from the encoder, the production process of mining machinery and equipment is ensured to be stable, the impact of encoder failure on safe production is reduced, and the normal operation of the equipment is ensured.
Smart Images
Figure CN222185675U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of mining mechanical equipment, and in particular relates to a mining mechanical equipment transmission device with a double encoder. Background Art
[0002] At present, mining machinery and equipment mainly rely on a single encoder to collect and process data, such as the coke pushing and coal loading operations of coke oven vehicles. However, due to the limited stability of a single encoder, when its coupling or encoder itself fails, the coal loading and coke pushing operations will not be able to proceed normally, which will have a significant impact on the stable production and operation of the coke oven.
[0003] In the prior art, there is a dual encoder transmission device for a powder forming machine with announcement number CN210062140U, which realizes transmission through structures such as a main crankshaft, a coupling, a transmission shaft and a synchronous pulley. For mining machinery and equipment, the complex transmission structure is not conducive to stable production. Therefore, the utility model provides a mining machinery and equipment transmission device with a dual encoder. Utility Model Content
[0004] The technical problem solved by the utility model is to overcome the problem of limited stability of a single encoder during the operation of mining machinery and equipment, and to provide a mining machinery and equipment transmission device with dual encoders.
[0005] The technical solution adopted by the utility model is as follows:
[0006] A mining machinery transmission device with dual encoders comprises a transmission shaft and a driving sprocket, wherein the driving sprocket is sleeved on the outside of the transmission shaft and fixed to the transmission shaft by a key; a groove is provided on the inner ring of the driving sprocket, and a protrusion is provided on the transmission shaft, and the groove and the protrusion are meshed to realize the transmission of the driving sprocket and the transmission shaft; one end of the transmission shaft is connected to a reducer, and a slave encoder is installed at the axis of the other end; a master encoder is installed on the outside of the reducer, and the rotating end of the master encoder is connected to the transmission shaft inside the reducer; the master encoder and the slave encoder are connected to a PLC controller, and the PLC controller defines the values of the master and slave encoders, and judges the forward or backward state of the current mining machinery according to the positive or negative values of the master and slave encoders. The PLC controller can also switch the master and slave encoders, and can switch in time when one of the master and slave encoders fails, thereby effectively ensuring the stable production.
[0007] A lip seal is installed between the transmission shaft and the slave encoder to make the connection between the slave encoder and the transmission shaft tighter; oil sealing devices are installed on the outside of the master encoder and the slave encoder to prevent oil leakage during operation. A shaft sleeve is installed on the outside of the transmission shaft to ensure the normal operation of the transmission shaft. A gasket group is installed between the shaft sleeve and the driving sprocket to prevent the driving sprocket from being damaged by friction with the shaft sleeve during rotation. Bearing seats are installed on both sides of the driving sprocket, and the bearing seats are sleeved on the outside of the transmission shaft; the upper and lower ends of the bearing seats are fixed by bolts; a transparent cover is installed on the outside of the bearing seat, and a spherical roller bearing is installed inside. The transparent cover can play a good role in sealing, fixing and protecting the bearing. The main purpose of the spherical roller bearing is to support the relative movement between the rotating parts and the fixed parts, and it has the ability to adjust the axis deviation and withstand high loads; the bearing seat supports the transmission shaft and the driving sprocket.
[0008] Compared with the prior art, the utility model has the following beneficial effects:
[0009] By adding a slave encoder to the transmission device, we can overcome the impact of a single encoder failure on safe and stable production during the operation of mining machinery and equipment. Adding a slave encoder can provide redundancy for the entire device, ensuring the stability of the production process and the health of people and machines in production. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is an overall schematic diagram of the utility model;
[0011] Figure 2 for Figure 1 Side view of the middle driving sprocket;
[0012] Figure 3 for Figure 1 Schematic diagram of the middle slave encoder;
[0013] Figure 4 This is a schematic diagram of the connection between the PLC controller and the master-slave encoder.
[0014] Among them: 1. main encoder; 2. reducer; 3. transmission shaft; 4. driving sprocket; 5. slave encoder; 6. key; 7. transparent cover; 8. bearing seat; 9. spherical roller bearing; 10. bushing; 11. gasket set; 12. lip seal ring; 13. oil sealing device. DETAILED DESCRIPTION
[0015] The utility model discloses a mining machinery transmission device with dual encoders, comprising a transmission shaft 3 and a driving sprocket 4, wherein the driving sprocket 4 is sleeved on the outside of the transmission shaft 3 and fixed to the transmission shaft 3 by a key 6; a groove is provided on the inner ring of the driving sprocket 4, and a protrusion is provided on the transmission shaft 3, and the groove and the protrusion are meshed to realize the transmission of the driving sprocket 4 and the transmission shaft 3; one end of the transmission shaft 3 is connected to the reducer 2, and a slave encoder 5 is installed at the axis of the other end; a main encoder 1 is installed on the outside of the reducer 2, and the rotating end of the main encoder 1 is connected to the transmission shaft 3 inside the reducer 2; the main encoder 1 and the slave encoder 5 are connected to a PLC controller, and the PLC controller defines the values of the main encoder 1 and the slave encoder 5, and judges the forward or backward state of the current mining machinery according to the positive and negative values of the main encoder 1 and the slave encoder 5. The PLC controller can also switch the main encoder 1 and the slave encoder 5, and can switch in time when one of the main encoder 1 and the slave encoder 5 fails, thereby effectively ensuring the stable production.
[0016] A lip seal 12 is installed between the transmission shaft 3 and the slave encoder 5 to make the connection between the slave encoder 5 and the transmission shaft 3 more secure; the main encoder 1 and the slave encoder 5 are both provided with oil sealing devices 13 on the outside to prevent oil leakage during operation; a sleeve 10 is provided on the outside of the transmission shaft 3 to ensure the normal operation of the transmission shaft 3, and a gasket group 11 is provided between the sleeve 10 and the driving sprocket 4 to prevent the driving sprocket 4 from being damaged by friction with the sleeve 10 during the rotation process. Bearing seats 8 are provided on both sides of the driving sprocket 4, and the bearing seats 8 are sleeved on the outside of the sleeve 10; the upper and lower ends of the bearing seats 8 are fixed by bolts; a transparent cover 7 is provided on the outside of the bearing seat 8, and a spherical roller bearing 9 is provided inside. The transparent cover 7 can play a good role in sealing, fixing and protecting the spherical roller bearing 9. The main purpose of the spherical roller bearing 9 is to support the relative movement between the rotating part and the fixed part, and it has the ability to adjust the axis deviation and withstand high loads.
[0017] The utility model can be applied to a variety of mining machinery and equipment, for example, in the case of a coke pushing car: screws and screws are installed at the axis of one end of the transmission shaft 3 to fix the slave encoder 5 to one end of the transmission shaft 3, the slave encoder 5 and the transmission shaft 3 are kept coaxial, and an oil sealing device 13 is installed outside the slave encoder 5 to prevent oil leakage during operation. When the reducer 2 is in operation, the transmission shaft 3 rotates, the main encoder 1 and the slave encoder 5 will rotate with the rotation of the transmission shaft 3, and the angular displacement of the rotating ends of the main encoder 1 and the slave encoder 5 will be converted into a periodic electrical signal, and then converted into a counting pulse value and sent to the PLC controller. The PLC controller defines the values of the main encoder 1 and the slave encoder 5, and then can distinguish whether the current coke pushing car is moving forward or backward according to the positive and negative values of the defined values; when one of the main encoder 1 or the slave encoder 5 fails, the PLC controller can switch the main encoder 1 or the slave encoder 5 in time to ensure the stable coke pushing operation of the coke pushing car.
[0018] The utility model provides redundancy for a single encoder device, reduces the impact on safe production and stable production caused by encoder failure, and ensures the normal production of mining machinery and equipment.
Claims
1. A mining mechanical equipment transmission device with a dual encoder, comprising a transmission shaft (3) and a driving sprocket (4), characterized in that: The driving sprocket (4) is sleeved on the outside of the transmission shaft (3) and fixed to the transmission shaft (3) via a key (6); a groove is provided on the inner ring of the driving sprocket (4), and a protrusion is provided on the transmission shaft (3); the groove and the protrusion are meshed to realize transmission between the driving sprocket (4) and the transmission shaft (3); One end of the transmission shaft (3) is connected to the reducer (2), and a slave encoder (5) is installed at the axis of the other end; a main encoder (1) is installed outside the reducer (2), and the rotating end of the main encoder (1) is connected to the transmission shaft (3) inside the reducer (2); the main encoder (1) and the slave encoder (5) are connected to a controller.
2. The mining machinery and equipment transmission device with dual encoders according to claim 1, characterized in that: A shaft sleeve (10) is arranged outside the transmission shaft, and a washer group (11) is arranged between the shaft sleeve (10) and the driving sprocket (4).
3. The mining machinery and equipment transmission device with dual encoders according to claim 1, characterized in that: The main encoder (1) and the slave encoder (5) are both provided with oil sealing devices (13) outside.
4. The mining mechanical equipment transmission device with dual encoders according to claim 1, characterized in that: A lip seal ring (12) is installed between the transmission shaft (3) and the slave encoder (5).
5. The mining machinery and equipment transmission device with dual encoders according to claim 1 or 2, characterized in that: Bearing seats (8) are provided on both sides of the driving sprocket (4), and the bearing seats (8) are sleeved on the outside of the shaft sleeve (10).
6. The mining mechanical equipment transmission device with dual encoders according to claim 5, characterized in that: The upper and lower ends of the bearing seat (8) are fastened by bolts; a transparent cover (7) is provided on the outside of the bearing seat, and a spherical roller bearing (9) is provided on the inside.
7. The mining machinery and equipment transmission device with dual encoders according to claim 1, characterized in that: The controller is a PLC controller.