Connecting device for crane clamp motor and encoder

Abstract

The utility model discloses a crane clamp motor and encoder connecting device, which comprises a motor (1) and an encoder (2) connected with the motor (1), an output shaft of the motor (1) is provided with a connecting gear (3), an output shaft of the encoder (2) is provided with a connecting piece (4), the connecting piece (4) is provided with a synchronous gear (5), the synchronous gear (5) is meshed with the connecting gear (3), and the encoder (2) is connected with the motor (1). A buffer structure (6) for protecting the encoder (2) is arranged between the encoder (2) and the synchronous gear (5); a buffering structure (6) is additionally arranged through transformation, a chain type connection mode is changed into a mode of reducing the failure rate of the clamp, improving the reliability and safety of the action of the clamp, avoiding safety accidents and guaranteeing continuous operation of production; production halt and coil damage caused by electrical faults of the clamp are reduced, losses are reduced, and benefits are considerable; and the use requirements of a production field are met, and the labor intensity of maintenance workers is greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of encoders, and in particular relates to a connecting device for a crane clamp motor and an encoder. Background Art

[0002] The width measurement data of the crane clamp is mainly calculated by the encoder measuring the movement of the motor. The measurement accuracy error is large. The encoder and the motor are connected by a chain. The chain connection is always in a state of high tension. Long-term use and the clamp is in a state of large shaking, which can easily lead to damage to the encoder, causing the clamp encoder to fail to measure normally, inaccurate data or no measurement data.

[0003] Patent number CN201721161626.6, published on April 17, 2018, discloses an external encoder device for a continuous casting machine hook steel machine. The device, which relates to the field of metallurgical equipment, includes a hook steel machine drive shaft, an encoder, an encoder spindle, and a hook steel machine maintenance platform. It also includes a large sprocket, a small sprocket, and a chain. The large sprocket is fixedly mounted on the hook steel machine drive shaft, the small sprocket is fixedly mounted on the hook steel machine maintenance platform, and the chain connects the large and small sprockets. The encoder spindle is coaxially mounted with the small sprocket, and the encoder is fixed to the encoder spindle. The device can be used with any continuous casting machine hook steel machine and features a simple structure, accurate positioning, short troubleshooting time, low spare parts cost, and convenient online maintenance. This reduces the labor intensity of maintenance personnel and improves the safety factor.

[0004] In the existing technology, the encoder is connected to the motor by a chain connection. The chain connection is always in a state of high tension. Long-term use and when the clamp is in a state of large shaking can easily cause the encoder to be damaged, resulting in the clamp encoder being unable to measure normally, inaccurate data or no measurement data, and large measurement accuracy errors. Utility Model Content

[0005] The utility model aims to provide a connecting device of a crane clamp motor and an encoder, which can protect an encoder from being damaged during long-term use.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a crane clamp motor and encoder connection device, including a motor and an encoder connected to the motor, a connecting gear is provided on the output shaft of the motor, a connecting piece is provided on the output shaft of the encoder, a synchronous gear is provided on the connecting piece, the synchronous gear is meshed with the connecting gear, and a buffer structure for protecting the encoder is provided between the encoder and the synchronous gear.

[0007] The connecting member includes a rotating shaft connected to the synchronous gear. The end of the rotating shaft is provided with a connecting shaft, and the connecting shaft is connected to the buffer structure.

[0008] The buffer structure includes a flexible coupling arranged on the side of the connecting shaft. A connecting ring is provided on the output shaft of the encoder, and the connecting ring is connected to the flexible coupling.

[0009] The flexible coupling is an insertion rod arranged around the end of the connecting shaft, the end of the insertion rod is connected to the connecting ring, and a buffer spring sleeved on the outside of the connecting shaft is provided between the insertion rod and the rotating shaft.

[0010] The connecting ring is provided with a socket matched with the plug rod, and a rubber pad is provided between the socket and the plug rod.

[0011] One end of the connecting shaft connected to the rotating shaft is provided with a spline, and the end of the rotating shaft is provided with a keyway matched with the spline.

[0012] The synchronous gear is key-connected to the rotating shaft, and the connecting gear is key-connected to the output shaft of the motor.

[0013] A reducer is provided on the output shaft of the motor.

[0014] A fixing frame is provided between the encoder and the electrical cabinet.

[0015] The technical effects of the utility model are: through the transformation, the failure rate of the clamp is reduced, the reliability and safety of the clamp action are improved, the occurrence of safety accidents is avoided, and the continuous operation of production is guaranteed; the production stoppage and roll damage caused by electrical failure of the clamp are reduced, the losses are reduced, and the benefits are considerable; and the use requirements of the production site are met, which greatly reduces the labor intensity of maintenance workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] This manual includes the following drawings, which show the following contents:

[0017] Figure 1 This is a structural diagram of a crane clamp motor and encoder connection device of the utility model;

[0018] Figure 2 for Figure 1 An enlarged schematic diagram of point A of the connection device between the crane clamp motor and the encoder;

[0019] Figure 3 for Figure 1 A schematic diagram of the matching of the plug rod and the socket of a connecting device between a crane clamp motor and an encoder;

[0020] Figure 4 for Figure 1 A schematic diagram of the spline connection device between a crane clamp motor and an encoder.

[0021] The markings in the figure are: 1. Motor; 2. Encoder; 3. Connecting gear; 4. Connecting part; 41. Rotating shaft; 42. Connecting shaft; 5. Synchronous gear; 6. Buffer structure; 61. Connecting ring; 62. Insert rod; 63. Buffer spring; 64. Jack; 65. Rubber pad; 7. Spline; 8. Keyway; 9. Reducer; 10. Fixed bracket. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the specific implementation methods of the present invention by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the utility model concept and technical solution of the present invention and to facilitate its implementation.

[0023] See also Figure 1-4 A crane clamp motor and encoder connection device includes a motor 1 and an encoder 2 connected to the motor 1, a connecting gear 3 is provided on the output shaft of the motor 1, a connecting piece 4 is provided on the output shaft of the encoder 2, a synchronous gear 5 is provided on the connecting piece 4, the synchronous gear 5 is engaged with the connecting gear 3, and a buffer structure 6 for protecting the encoder 2 is provided between the encoder 2 and the synchronous gear 5.

[0024] By modifying and adding a buffer structure 6, the chain-type connection method is changed to reduce the failure rate of the clamp, improve the reliability and safety of the clamp action, avoid the occurrence of safety accidents, and ensure the continuous operation of production; reduce production stoppages and roll damage caused by electrical failures of the clamp, reduce losses, and achieve considerable benefits; and meet the use requirements of the production site, greatly reducing the labor intensity of maintenance workers.

[0025] The connecting member 4 includes a rotating shaft 41 connected to the synchronous gear 5. The end of the rotating shaft 41 is provided with a connecting shaft 42, and the connecting shaft 42 is connected to the buffer structure 6. The synchronous gear 5 and the encoder 2 are connected together through the rotating shaft 41 and the connecting shaft 42.

[0026] The buffer structure 6 includes a flexible coupling arranged on the side of the connecting shaft 42. A connecting ring 61 is provided on the output shaft of the encoder 2, and the connecting ring 61 is connected to the flexible coupling; the flexible coupling is used to reduce the risk of damage to the encoder 2.

[0027] The flexible coupling is an insertion rod 62 arranged around the end of the connecting shaft 42. The end of the insertion rod 62 is connected to the connecting ring 61. A buffer spring 63 is provided between the insertion rod 62 and the rotating shaft 41 and is sleeved on the outside of the connecting shaft 42. The insertion rod 62 allows the connecting ring 61 to rotate synchronously with the rotating shaft 41, ensuring that the encoder 2 can drive the synchronous gear 5 to rotate. At the same time, the buffer spring 63 can reduce the vibration of the equipment caused by the shaking of the clamp, which may cause damage to the equipment.

[0028] The connecting ring 61 is provided with a socket 64 that matches the plug rod 62, and a rubber pad 65 is provided between the socket 64 and the plug rod 62; the rubber pad 65 can reduce the lateral shear force and reduce equipment damage.

[0029] One end of the connecting shaft 42 connected to the rotating shaft 41 is provided with a spline 7, and the end of the rotating shaft 41 is provided with a keyway 8 that matches the spline 7; the connection using the spline 7 is convenient for installation and facilitates transmission.

[0030] The synchronous gear 5 is key-connected to the rotating shaft 41 , and the connecting gear 3 is key-connected to the output shaft of the motor 1 ; the connection between the shaft and the gear is ensured.

[0031] A speed reducer 9 is provided on the output shaft of the motor 1 to facilitate the control of the rotation speed of the motor 1 .

[0032] A fixing bracket 10 is provided between the encoder 2 and the electrical cabinet to further improve the stability of the encoder 2 and reduce shaking.

[0033] The technical effects of the utility model are: through the transformation, the failure rate of the clamp is reduced, the reliability and safety of the clamp action are improved, the occurrence of safety accidents is avoided, and the continuous operation of production is guaranteed; the production stoppage and roll damage caused by electrical failure of the clamp are reduced, the losses are reduced, and the benefits are considerable; and the use requirements of the production site are met, which greatly reduces the labor intensity of maintenance workers.

[0034] The above description of the present invention is provided as an example, in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described method. Any non-substantial improvements made using the method concepts and technical solutions of the present invention, or any application of the above-described concepts and technical solutions of the present invention to other situations without modification, are all within the scope of protection of the present invention.

Claims

1. A crane clamp motor and encoder connection device, comprising a motor (1) and an encoder (2) connected to the motor (1), characterized in that: A connecting gear (3) is provided on the output shaft of the motor (1), a connecting piece (4) is provided on the output shaft of the encoder (2), a synchronous gear (5) is provided on the connecting piece (4), the synchronous gear (5) is meshed with the connecting gear (3), and a buffer structure (6) for protecting the encoder (2) is provided between the encoder (2) and the synchronous gear (5).

2. The crane clamp motor and encoder connection device according to claim 1, characterized in that: The connecting member (4) comprises a rotating shaft (41) connected to the synchronous gear (5); a connecting shaft (42) is provided at the end of the rotating shaft (41); and the connecting shaft (42) is connected to the buffer structure (6).

3. The crane clamp motor and encoder connection device according to claim 2, characterized in that: The buffer structure (6) includes a flexible coupling arranged on the side of the connecting shaft (42); a connecting ring (61) is provided on the output shaft of the encoder (2); and the connecting ring (61) is connected to the flexible coupling.

4. The crane clamp motor and encoder connection device according to claim 3, characterized in that: The flexible coupling is an insertion rod (62) arranged around the end of the connecting shaft (42), the end of the insertion rod (62) is connected to the connecting ring (61), and a buffer spring (63) is provided between the insertion rod (62) and the rotating shaft (41) and is sleeved on the outside of the connecting shaft (42).

5. The crane clamp motor and encoder connection device according to claim 4, characterized in that: The connecting ring (61) is provided with a socket (64) matched with the plug rod (62), and a rubber pad (65) is provided between the socket (64) and the plug rod (62).

6. The crane clamp motor and encoder connection device according to claim 4, characterized in that: One end of the connecting shaft (42) connected to the rotating shaft (41) is provided with a spline (7), and the end of the rotating shaft (41) is provided with a keyway (8) matched with the spline (7).

7. The crane clamp motor and encoder connection device according to claim 1, characterized in that: The synchronous gear (5) is key-connected to the rotating shaft (41), and the connecting gear (3) is key-connected to the output shaft of the motor (1).

8. The crane clamp motor and encoder connection device according to claim 1, characterized in that: A speed reducer (9) is provided on the output shaft of the motor (1).

9. The crane clamp motor and encoder connection device according to claim 1, characterized in that: A fixing frame (10) is provided between the encoder (2) and the electrical cabinet.

Images