A hydraulic belt coiling machine for underground coal mines

Abstract

The present invention discloses a hydraulic belt coiler for use in underground coal mines, which comprises a belt coiling and blanking table and support plates arranged on both sides of the belt coiling and blanking table. Bush bearings are respectively fixed on the upper end surfaces of the two support plates. A driving rotating shaft and a driven rotating shaft are respectively horizontally arranged on the two bush bearings. One end of the driving rotating shaft between the two support plates is connected and fixed with a driving turntable. One end of the driven rotating shaft is oppositely connected and fixed with a driven turntable relative to the driving turntable. Belt coiling roller inlet and outlet slots are respectively arranged on the driving turntable and the driven turntable from the turntable center to the edge. The arc bottoms of the belt coiling roller inlet and outlet slots at the turntable center respectively form a driving turntable shaft support and a driven turntable shaft support. A hydraulic motor is arranged on the support plate outside the driving turntable. A hydraulic cylinder is fixedly connected to the support plate outside the driven turntable. The telescopic arm of the hydraulic cylinder is connected with the other end side of the driven rotating shaft through a fork rod. The present invention can perform belt coiling operations on conveyor belts of different widths, is convenient to operate, and has a high safety factor.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mine equipment, and particularly relates to a hydraulic belt coiler for underground coal mines. Background Art

[0002] Generally, a belt coiler uses an electric motor to drive a turbine reducer. The output shaft of the reducer is connected to the main turntable shaft. The main turntable drives the belt coiling roller to rotate. The other end of the belt coiling roller is connected to the slave turntable, driving the slave turntable to rotate synchronously to achieve the belt coiling operation. However, at the main and slave turntable shafts of the existing belt coiler, there is only a shaft sleeve, which cannot adjust the left-right balance, easily causes the main and slave turntables to be non-concentric, thus easily causing frequent damage to the reducer and even the belt coiler. Moreover, the coiling width needs to be adjusted manually, and at the same time, it is also necessary to manually move the coiled conveyor belt out of the base of the belt coiler. During the coiling process, the reduction ratio of the reducer is fixed, and the motor speed is relatively high, posing a safety risk. Although the existing hydraulic belt coiler uses a hydraulic motor drive to replace the previous electric motor drive system, reducing the safety risk, it cannot adjust the coiling width and can only perform the coiling operation on conveyor belts with a fixed width. Therefore, it is very necessary to design a belt coiler that can conveniently adjust the coiling width to meet the operation requirements of conveyor belts with different widths. Summary of the Invention

[0003] The purpose of the present invention is to provide a hydraulic belt coiler for underground coal mines, which can conveniently adjust the coiling width to meet the operation requirements of conveyor belts with different widths, and at the same time can achieve stepless speed change of the belt coiler, reduce the safety risk, save labor costs, and improve work efficiency.

[0004] To achieve the above purpose, the present invention provides the following technical solutions:

[0005] A hydraulic tape winding machine for use in underground coal mines, comprising a tape winding and blanking table and support plates arranged on both sides of the tape winding and blanking table. Upper end faces of the two support plates are respectively fixed with bearing pedestals. A driving rotating shaft and a driven rotating shaft are horizontally arranged on the two bearing pedestals respectively. One end of the driving rotating shaft between the two support plates is connected and fixed with a driving turntable. One end of the driven rotating shaft is oppositely connected and fixed with a driven turntable relative to the driving turntable. Winding roller inlet and outlet slots are respectively arranged on the driving turntable and the driven turntable from the turntable center to the edge. The arc bottoms of the winding roller inlet and outlet slots at the turntable center respectively form a driving turntable shaft support and a driven turntable shaft support. During winding, both ends of the winding roller are inserted into the driving turntable shaft support and the driven turntable shaft support through the two winding roller inlet and outlet slots and locked. The driving rotating shaft, the driven rotating shaft, the driving turntable shaft support and the driven turntable shaft support are concentrically arranged. A hydraulic motor connected to the other end of the driving rotating shaft is arranged on the support plate outside the driving turntable. The hydraulic motor is connected to a hydraulic source through a first reversing valve. A hydraulic cylinder is fixedly connected to the support plate outside the driven turntable. The hydraulic cylinder is connected to the hydraulic source through a second reversing valve. A telescopic arm of the hydraulic cylinder is connected to the other end side of the driven rotating shaft through a fork rod. The telescopic movement of the telescopic arm drives the driven rotating shaft to move the driven turntable to adjust the distance between the driving turntable and the driven turntable.

[0006] Furthermore, a flow regulating valve is arranged between the first reversing valve, the second reversing valve and the hydraulic source. The flow regulating valve is used to regulate the rotation speed of the hydraulic motor or the telescopic speed of the telescopic arm of the hydraulic cylinder.

[0007] Furthermore, the distance between the driving turntable and the driven turntable is determined according to the length of the winding roller.

[0008] Furthermore, the tape winding and blanking table is an inclined plane platform forming an angle with the horizontal ground.

[0009] Furthermore, the angle between the inclined plane platform and the horizontal ground is 5 degrees to 8 degrees.

[0010] Furthermore, after both ends of the winding roller are inserted into the driving turntable shaft support and the driven turntable shaft support through the two winding roller inlet and outlet slots, the winding roller is locked by bolts passing through the winding roller and the driving turntable shaft support and the driven turntable shaft support.

[0011] Furthermore, when the winding is completed, the bolts can be withdrawn from the winding roller, and the winding roller slides down to the tape winding and blanking table along the winding roller inlet and outlet slots of the driving turntable and the driven turntable.

[0012] The beneficial effects of the present invention are as follows: The hydraulic tape winder for underground coal mines disclosed by the present invention has a simple structure and is convenient for maintenance and use. By using a hydraulic cylinder to adjust the distance between the master and slave turntables to meet the requirements of tape winding operations for different widths of conveyor belts, it is easy to operate, reduces the labor intensity of workers, and improves work efficiency. At the same time, by using a hydraulic motor for driving, stepless speed change within the speed range of 0 - 15 r / min is achieved for the tape winder, and overload protection is realized, avoiding accidents of damage to the conveyor belt or the tape winder caused by jamming, and reducing safety risks. In addition, the inclined base can automatically move the wound conveyor belt outside the base, reducing the output of manpower and material resources, and achieving safe and fast storage.

[0013] The following further elaborates on the present invention in detail in conjunction with the accompanying drawings and specific embodiments. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the hydraulic tape winder;

[0015] Figure 2 is a schematic structural diagram of the connection between the driven turntable, the driven rotating shaft and the tape winding roller, and is Figure 1 an enlarged view of part A;

[0016] Figure 3 is a schematic structural diagram of the driven turntable, Figure 1 view B of;

[0017] Figure 4 is a schematic structural diagram of the driving turntable, Figure 1 view C of.

[0018] In the figure: 1 - hydraulic source; 2 - first reversing valve; 3 - second reversing valve; 4 - tape winding and discharging table; 5, 6 - support plates; 7 - hydraulic motor; 8, 9 - bearing pedestals; 10 - driving turntable; 10 - 1 - driving turntable shaft support; 10 - 2 - driving turntable connecting shaft platform; 10 - 3 - tape winding roller inlet and outlet slots; 11 - driven turntable; 11 - 1 - driven turntable shaft support; 11 - 2 - driven turntable connecting shaft platform; 11 - 3 - tape winding roller inlet and outlet slots; 12 - driving rotating shaft; 13 - driven rotating shaft; 14 - hydraulic cylinder; 15 - telescopic arm; 16 - fork rod; 17 - flow regulating valve; 18 - tape winding roller. Specific Embodiments

[0019] The present invention discloses a hydraulic tape winder for underground coal mines, as Figures 1 to 4As shown in the figure, it includes a tape coiling and blanking table 4, and two support plates 6 and 5 respectively arranged on both sides of the tape coiling and blanking table 4. Bush seats 8 and 9 are respectively fixed on the upper end faces of the two support plates 6 and 5. A driving rotating shaft 12 and a driven rotating shaft 13 are respectively horizontally arranged on the two bush seats 8 and 9. One end of the driving rotating shaft 12 between the two support plates is connected and fixed with a driving turntable 10. A driving turntable connecting shaft platform 10-2 is arranged on one side of the driving turntable 10. The driving turntable connecting shaft platform 10-2 is sleeved on the driving rotating shaft 12 and locked by bolts passing through. One end of the driven rotating shaft 13 is connected and fixed with a driven turntable 11 opposite to the driving turntable 10. A driven turntable connecting shaft platform 11-2 is arranged on one side of the driven turntable 11. The driven turntable connecting shaft platform 11-2 is sleeved on the driven rotating shaft 13 and locked by bolts passing through.

[0020] Symmetrically arranged from the center to the edge of the driving turntable 10 and the driven turntable 11 are coiling roller inlet and outlet slots 10-3 and 11-3 that are matched in size with the coiling roller 18. The arc bottoms of the coiling roller inlet and outlet slots at the center of the turntable respectively form a driving turntable shaft support 10-1 and a driven turntable shaft support 11-1. During coiling, both ends of the coiling roller 18 are inserted into the driving turntable shaft support 10-1 and the driven turntable shaft support 11-1 through the two coiling roller inlet and outlet slots 10-3 and 11-3 respectively, and locked by bolts passing through the coiling roller 18 and the driving turntable shaft support 10-1 and the driven turntable shaft support 11-1. When the coiling is completed, the bolts can be withdrawn from the coiling roller 18, and the coiling roller 18 slides down onto the tape coiling and blanking table 4 along the coiling roller inlet and outlet slots of the driving turntable 10 and the driven turntable 11. Among them, the driving rotating shaft 12, the driven rotating shaft 13, the driving turntable shaft support 10-1, and the driven turntable shaft support 11-1 are concentrically arranged, thus ensuring the synchronous rotation of the driving turntable 10 and the driven turntable 11.

[0021] A hydraulic motor 7 connected to the other end of the driving rotating shaft 12 is arranged on the support plate 6 outside the driving turntable 10. The hydraulic motor 7 is connected to a hydraulic source 1 through a first reversing valve 2. A hydraulic cylinder 14 is fixedly connected to the support plate 5 outside the driven turntable 11. The hydraulic cylinder 14 is connected to the hydraulic source 1 through a second reversing valve 3. The hydraulic cylinder 14 has a telescopic telescopic arm 15. The telescopic arm 15 of the hydraulic cylinder 14 is connected to the other end side of the driven rotating shaft 13 through a fork rod 16. The telescopic movement of the telescopic arm 15 drives the driven rotating shaft 13 to drive the driven turntable 11 to move for adjusting the distance between the driving turntable 10 and the driven turntable 11.

[0022] The hydraulic motor 7 is the power device of the hydraulic tape winding machine, driving the hydraulic tape winding machine to work. The forward and reverse rotation of the hydraulic motor 7 can be adjusted through the first reversing valve 2. The telescopic arm 15 of the hydraulic cylinder 14 is controlled to extend and retract through the second reversing valve 3. The telescopic telescopic arm 15 drives the driven rotating shaft 13 to move through the fork rod 16, and then adjusts the distance between the two turntables 10 and 11 according to the length of the tape winding roller 18, thereby adjusting the tape winding width to meet the operation requirements of the hydraulic tape winding machine for conveyor belts of different widths.

[0023] Specifically, a flow regulating valve 17 is provided between the first reversing valve 2, the second reversing valve 3 and the hydraulic source 1. The flow regulating valve 17 can steplessly adjust the rotation speed of the hydraulic motor 7 and the telescopic speed of the telescopic arm 15 to meet the actual working needs. Through the flow regulating valve 17, stepless speed change of the hydraulic tape winding machine within the speed range of 0 - 15 r / min can be achieved, eliminating the failure rate of the reducer damage and improving the safety factor.

[0024] Specifically, the distance between the driving turntable 10 and the driven turntable 11 is determined according to the length of the tape winding roller 18. By adjusting the distance between the driving turntable 10 and the driven turntable 11 through the telescopic arm 15 of the hydraulic cylinder 14, the tape winding machine can wind conveyor belts with widths of 0.8 m, 1.0 m, and 1.2 m respectively.

[0025] Specifically, the tape winding blanking table is an inclined platform made of steel plate and forming an angle with the horizontal ground. The angle between it and the horizontal ground is generally 5 degrees to 8 degrees, usually set at 6 degrees. In this way, every time the tape winding is completed, the bolt is pulled out from the tape winding roller 18, and the tape winding roller 18 and the wound conveyor belt slide along the tape winding roller inlet and outlet slots of the driving turntable 10 and the driven turntable 11 onto the tape winding blanking table 4. The inclined platform can automatically move the wound conveyor belt outside the tape winding blanking table, reducing the labor intensity of workers and achieving safe and fast storage.

[0026] When the hydraulic tape winding machine starts to work, first, the telescopic arm 15 of the hydraulic cylinder 14 is controlled through the second reversing valve 3 to adjust the driven turntable 11 to a suitable distance position from the driving turntable 10; then the two ends of the tape winding roller 18 are inserted into the driving turntable shaft support 10 - 1 and the driven turntable shaft support 11 - 1 through the tape winding roller inlet and outlet slots 10 - 3 and 11 - 3 of the driving turntable 10 and the driven turntable 11. After aligning the screw holes on the tape winding roller with the screw holes on the shaft support, the bolt is passed through and fixed; then one end of the conveyor belt is tied and fixed to the tape winding roller 18; then the hydraulic motor 7 is started, and the hydraulic tape winding machine starts to wind the tape.

[0027] At this time, the hydraulic oil in the hydraulic source 1 enters the hydraulic motor 7, and the hydraulic motor 7 rotates to drive the driving rotating shaft 12 and the driving turntable 10 to rotate. The driving turntable 10 further drives the tape winding roller 18, the driven turntable 11, and the driven rotating shaft 13 to rotate synchronously. The driving turntable 10 and the driven turntable 11 rotate synchronously to perform the tape winding operation of the conveyor belt. The forward and reverse rotation of the hydraulic motor 7 can be adjusted through the first reversing valve 2, and the speed of the hydraulic motor 7 can be steplessly adjusted through the flow regulating valve 17. The hydraulic tape winding machine of the present invention can achieve stepless speed change within the speed range of 0 - 15 r / min, eliminating the failure rate of the reducer damage and reducing the safety risk.

[0028] When the tape winding work needs to be carried out on conveyor belts of different widths, the distance between the driving turntable 10 and the driven turntable 11 can be adjusted through the second reversing valve 3. At this time, the hydraulic oil in the hydraulic source 1 enters the hydraulic cylinder 14, and the telescopic arm 15 of the hydraulic cylinder 14 is controlled to extend and retract through the second reversing valve 3. The speed of the telescopic arm 15 extending and retracting can be adjusted through the flow regulating valve 17. The telescopic telescopic arm 15 drives the driven rotating shaft 13 to move through the fork rod 16, and then the distance between the driving turntable 10 and the driven turntable 11 is adjusted according to the length of the tape winding roller 18, so as to realize the adjustment of the tape winding width. Controlling the hydraulic cylinder 14 through the second reversing valve 3 to adjust the tape winding width is simple in operation, greatly reducing the labor intensity of workers, saving labor costs, and improving the safety factor. The hydraulic tape winding machine of the present invention can make the tape winding machine perform the tape winding operation on conveyor belts with widths of 0.8 m, 1.0 m, and 1.2 m respectively by controlling the telescopic length of the telescopic arm 15 of the hydraulic cylinder 14, meeting the tape winding operation requirements for conveyor belts of different widths.

[0029] After the conveyor belt winding is completed, the wound conveyor belt is bundled and fixed with the tape winding roller 18, and then the bolt is pulled out from the tape winding roller 18. The tape winding roller 18 and the wound conveyor belt slide down to the tape winding blanking table 4 along the tape winding roller inlet and outlet slots of the driving turntable 10 and the driven turntable 11. The inclined platform can automatically move the wound conveyor belt outside the tape winding blanking table, reducing the labor intensity of workers and realizing safe and fast storage.

[0030] The above is only the preferred embodiment of the present invention and is not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements should be included in the protection scope of the present invention.

Claims

1. A hydraulic tape coiling machine for use in underground coal mines, characterized in that, the hydraulic tape coiling machine includes a tape coiling and blanking table and support plates arranged on both sides of the tape coiling and blanking table. Bush bearings are respectively fixed on the upper end surfaces of the two support plates. A driving rotating shaft and a driven rotating shaft are respectively horizontally arranged on the two bush bearings. One end of the driving rotating shaft between the two support plates is connected and fixed with a driving turntable. One end of the driven rotating shaft is oppositely connected and fixed with a driven turntable relative to the driving turntable. Tape coiling roller inlet and outlet slots are respectively arranged on the driving turntable and the driven turntable from the center of the turntable to the edge. The arc bottoms of the tape coiling roller inlet and outlet slots at the center of the turntable respectively form a driving turntable shaft support and a driven turntable shaft support. During tape coiling, both ends of the tape coiling roller are respectively inserted into the driving turntable shaft support and the driven turntable shaft support through the two tape coiling roller inlet and outlet slots and locked. The driving rotating shaft, the driven rotating shaft, the driving turntable shaft support and the driven turntable shaft support are concentrically arranged; a hydraulic motor connected to the other end of the driving rotating shaft is arranged on the support plate outside the driving turntable. The hydraulic motor is connected to a hydraulic source through a first reversing valve. A hydraulic cylinder is fixedly connected to the support plate outside the driven turntable. The hydraulic cylinder is connected to the hydraulic source through a second reversing valve. The telescopic arm of the hydraulic cylinder is connected to the other end side of the driven rotating shaft through a fork rod. The telescopic movement of the telescopic arm drives the driven rotating shaft to drive the driven turntable to move for adjusting the distance between the driving turntable and the driven turntable; both ends of the tape coiling roller are respectively inserted into the driving turntable shaft support and the driven turntable shaft support through the two tape coiling roller inlet and outlet slots and then locked by bolts passing through the tape coiling roller and the driving turntable shaft support and the driven turntable shaft support; when the tape coiling is completed, the bolts can be withdrawn from the tape coiling roller, and the tape coiling roller slides down to the tape coiling and blanking table along the tape coiling roller inlet and outlet slots of the driving turntable and the driven turntable; a flow regulating valve is arranged between the first reversing valve, the second reversing valve and the hydraulic source. The flow regulating valve is used for regulating the rotation speed of the hydraulic motor or the telescopic speed of the telescopic arm of the hydraulic cylinder.

2. The hydraulic tape coiling machine for use in underground coal mines according to claim 1, characterized in that, the distance between the driving turntable and the driven turntable is determined according to the length of the tape coiling roller.

3. The hydraulic tape coiling machine for use in underground coal mines according to claim 1, characterized in that, the tape coiling and blanking table is an inclined plane platform forming an angle with the horizontal ground.

4. The hydraulic tape coiling machine for use in underground coal mines according to claim 3, characterized in that, the angle between the inclined plane platform and the horizontal ground is 5 degrees to 8 degrees.

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