Passive self-driving hydraulic deviation rectifying device for mining conveyor conveying belt

Abstract

According to the passive self-driving hydraulic deviation rectifying device for the mining conveyor conveying belt, a bearing upper belt face and a return stroke lower belt face are connected with a roller, a conveyor longitudinal beam is connected with a conveyor supporting leg, the bottoms of a plurality of upper fixing carrier roller sets are fixed to the conveyor longitudinal beam, and a plurality of lower fixing carrier roller sets are fixed to the conveyor supporting leg. The upper bearing belt face is located on the upper portions of the upper fixing carrier roller sets, one ends of the lower fixing carrier roller sets are connected with a conveyor longitudinal beam, and the lower return belt face is located on the lower fixing carrier roller sets. The passive self-driving hydraulic deviation rectifying device further comprises a passive self-driving hydraulic upper deviation rectifying device body and a passive self-driving hydraulic lower deviation rectifying device body, the upper end of the passive self-driving hydraulic upper deviation rectifying device body makes contact with the upper bearing belt face, the lower end of the passive self-driving hydraulic upper deviation rectifying device body is connected with the conveyor longitudinal beam, and the upper portion of the passive self-driving hydraulic lower deviation rectifying device body is connected with the conveyor longitudinal beam. The middle part of the passive self-driven hydraulic lower corrector is in contact with the return stroke lower belt surface; the deviation rectifying device does not need a power supply, manual operation and maintenance, and can be used for deviation rectifying of the bearing surface and the return surface of the mining conveying belt.

Description

Technical Field

[0001] The utility model relates to a mechanism for bulk material conveying, in particular to a self - powered hydraulic belt deviation rectifying device for a mining conveyor belt. Background Art

[0002] When a mining conveyor is conveying ores or coals, it sometimes runs off to the left or right. The deviation causes material to fall to both sides of the channel, and in severe cases, problems such as tearing of the conveyor belt edge occur. Moreover, problems such as tearing or notches may occur at the edges of both the load - bearing upper belt surface and the return lower belt surface of the mining conveyor. In view of the above - mentioned situations, the user unit often rectifies the deviation by manual or other mechanical means. At present, in the context of unattended operation, it no longer meets the current enterprise safety production requirements. Therefore, we have invented a self - powered hydraulic belt deviation rectifying device for a mining conveyor belt. Content of the Utility Model

[0003] The purpose of the utility model is to provide a self - powered hydraulic belt deviation rectifying device for a mining conveyor belt. This deviation rectifying device does not require a power source, manual operation, or maintenance, and can be used for deviation rectification of both the load - bearing surface and the return surface of the mining conveyor belt. It can adjust the required installation dimensions at the installation site without the need for workers to perform electric welding operations, saving time and effort, reducing the downtime for installation, and greatly improving production efficiency.

[0004] In order to achieve the above - mentioned purpose, the utility model has the following technical solutions:

[0005] A self - powered hydraulic belt deviation rectifying device for a mining conveyor belt of the utility model includes a plurality of upper fixed idler groups, a plurality of lower fixed idler groups, conveyor legs, a conveyor longitudinal beam, a drum, a load - bearing upper belt surface, a return lower belt surface. The load - bearing upper belt surface and the return lower belt surface are connected to the drum, the conveyor longitudinal beam is connected to the conveyor legs, and the conveyor legs are fixed on the foundation. The bottoms of the plurality of upper fixed idler groups are fixed on the conveyor longitudinal beam, the load - bearing upper belt surface is located above the plurality of upper fixed idler groups, one end of the plurality of lower fixed idler groups is connected to the conveyor longitudinal beam, and the return lower belt surface is located on the lower fixed idler groups. The utility model also includes a self - powered hydraulic upper deviation rectifier and a self - powered hydraulic lower deviation rectifier. The upper end of the self - powered hydraulic upper deviation rectifier contacts the load - bearing upper belt surface, and the lower end of the self - powered hydraulic upper deviation rectifier is connected to the conveyor longitudinal beam. The upper part of the self - powered hydraulic lower deviation rectifier is connected to the conveyor longitudinal beam, and the middle part of the self - powered hydraulic lower deviation rectifier contacts the return lower belt surface.

[0006] Among them: The self - powered hydraulic upper deviation rectifier includes an upper centering idler group 1, an upper centering idler group 2, a double - acting double - shaft hydraulic cylinder 1, a reversing protection control valve group 1, a hydraulic cylinder support, a gear oil pump 1, a gear oil pump 2, a fuel tank 1, a fuel tank 2, a fuel tank support arm 1, a fuel tank support arm 2, a rubber - coated driving plate 1, a rubber - coated driving plate 2, an air filter 1, an air filter 2, an integrated oil suction filter 1, an integrated oil suction filter 2, a liquid level display 1, a liquid level display 2, five hydraulic hoses, an idler group mounting plate, U - shaped mounting bolts, and an upper centering idler group centering beam;

[0007] The upper centering idler group 1 and the upper centering idler group 2 are connected to the conveyor longitudinal beam in parallel. The hydraulic cylinder support 1 is clamped between the upper centering idler group 1 and the upper centering idler group 2 with U - shaped mounting bolts and fixed on the upper centering idler group fixed beam. The double - acting double - shaft hydraulic cylinder 1 is installed on the hydraulic cylinder support. The double - acting double - shaft hydraulic cylinder 1 is connected to the upper centering idler group centering beam. The double - acting double - shaft hydraulic cylinder 1 and the reversing protection control valve group 1 are integrally assembled. The fuel tank support arm 1 and the fuel tank support arm 2 are respectively symmetrically clamped on the conveyor longitudinal beam with U - shaped mounting bolts. The fuel tank 1 and the fuel tank 2 are respectively welded on the fuel tank support arm 1 and the fuel tank support arm 2. The gear oil pump 1 and the gear oil pump 2 are respectively installed in the fuel tank 1 and the fuel tank 2. The two oil pump rotating shafts are respectively horizontally installed and protrude outside the fuel tank 1 and the fuel tank 2. The integrated oil suction filter 1 and the integrated oil suction filter 2 are respectively installed at the oil suction ports of the two oil pumps. The oil outlet of the oil pump is externally placed on the sides of the fuel tank 1 and the fuel tank 2 through a connecting rod. The liquid level display 1 and the liquid level display 2 are respectively installed on the outer sides of the fuel tank 1 and the fuel tank 2. The air filter 1 and the air filter 2 are respectively installed at the covers of the two fuel tanks. The rubber - coated driving plate 1 and the rubber - coated driving plate 2 are respectively vertically installed at the head ends of the two oil pump rotating shafts. The five hydraulic hoses include an oil outlet pipe between the fuel tank 1 and the reversing protection control valve group 1, a return pipe, an oil outlet pipe between the fuel tank 2 and the reversing protection control valve group 1, a return pipe, and a connecting pipe between the fuel tank 1 and the fuel tank 2.

[0008] Among them: The self - powered hydraulic lower deviation rectifier includes a lower centering idler group 1, a lower centering idler group 2, a double - acting double - shaft hydraulic cylinder 2, a reversing protection control valve group 2, a hydraulic cylinder support 2, a gear oil pump 3, a gear oil pump 4, a fuel tank 3, a fuel tank 4, a fuel tank hanging arm 1, a fuel tank hanging arm 2, a rubber - coated driving plate 3, a rubber - coated driving plate 4, an air filter 3, an air filter 4, an integrated oil suction filter 3, an integrated oil suction filter 4, a liquid level display 3, a liquid level display 4, five hydraulic hoses, an idler group mounting plate, U - shaped mounting bolts, and a lower centering idler group centering beam;

[0009] The lower centering idler set 1 and the lower centering idler set 2 are connected to the longitudinal beam of the conveyor in parallel through the centering idler set mounting plate. The centering idler set mounting plate is clamped on the longitudinal beam of the conveyor by U-shaped mounting bolts. The hydraulic cylinder bracket 2 is clamped between the lower centering idler set 1 and the lower centering idler set 2 by U-shaped mounting bolts and fixed on the fixed beam of the lower centering idler set. The double-direction and double-shaft hydraulic cylinder 2 is installed on the hydraulic cylinder bracket. The double-direction and double-shaft hydraulic cylinder 2 is connected to the centering beam of the lower centering idler set. The double-direction and double-shaft hydraulic cylinder 2 is integrally assembled with the reversing protection control valve group 2. The fuel tank hanging arm 1 and the fuel tank hanging arm 2 are respectively symmetrically clamped on the longitudinal beam of the conveyor by U-shaped mounting bolts. The fuel tank 3 and the fuel tank 4 are respectively welded on the fuel tank hanging arm 1 and the fuel tank hanging arm 2. The gear oil pump 3 and the gear oil pump 4 are respectively installed in the fuel tank 3 and the fuel tank 4. The two oil pump rotating shafts are respectively horizontally installed and protrude outside the fuel tank 3 and the fuel tank 4. The integrated oil suction filter 3 and the integrated oil suction filter 4 are respectively installed at the oil suction ports of the two oil pumps. The oil outlet of the oil pump is externally placed on the side surfaces of the fuel tank 3 and the fuel tank 4 through a connecting rod. The liquid level display gauges 3 and 4 are respectively installed on the outer side surfaces of the fuel tank 3 and the fuel tank 4. The air filters 3 and 4 are respectively installed at the covers of the two fuel tanks. The rubber-coated driving discs 3 and 4 are vertically installed at the head ends of the oil pump rotating shafts; the five hydraulic hoses include an oil outlet pipe between the left fuel tank 3 and the reversing protection control valve group 2, a return oil pipe, an oil outlet pipe between the fuel tank 4 and the reversing protection control valve group 2, a return oil pipe, and a connecting pipe between the fuel tank 3 and the fuel tank 4.

[0010] Due to the adoption of the above technical solutions, the advantages of the present utility model are as follows:

[0011] The present utility model does not require a power source, manual operation, or maintenance, and can be used for correcting the deviation of the loading surface and the return surface of the mine conveyor belt; it can adjust the required installation dimensions at the installation site, eliminating the need for workers to perform electric welding operations, saving time and effort, reducing the downtime for installation, and greatly improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is the overall structural schematic diagram of the present utility model;

[0013] Figure 2 is an enlarged schematic diagram of the front view of the self-powered hydraulic upper deviation corrector of the present utility model;

[0014] Figure 3 is an enlarged schematic diagram of the left view of the self-powered hydraulic upper deviation corrector of the present utility model;

[0015] Figure 4 is an enlarged schematic diagram of the top view of the self-powered hydraulic upper deviation corrector of the present utility model;

[0016] Figure 5It is an enlarged schematic view of the front view of the self - powered hydraulic lower deviation corrector of the present utility model;

[0017] Figure 6 It is an enlarged schematic view of the left view of the self - powered hydraulic lower deviation corrector of the present utility model;

[0018] Figure 7 It is an enlarged schematic view of the top view of the self - powered hydraulic lower deviation corrector of the present utility model;

[0019] Figure 8 It is an enlarged schematic view of the structure of the bidirectional double - shaft hydraulic cylinder of the present utility model;

[0020] Figure 9 It is an enlarged schematic view of the over - pressure protection unit of the present utility model.

[0021] In the figure:

[0022] 1. Conveyor support leg, 2. Conveyor longitudinal beam, 3. Drum, 4. Load-bearing upper belt surface, 5. Return lower belt surface; 6. Upper self-aligning idler set one, 7. Upper self-aligning idler set two, 8. Double-acting double-shaft hydraulic cylinder one, 9. Reversing protection control valve group one, 10. Hydraulic cylinder support, 11. Gear oil pump one, 12. Gear oil pump two, 13. Oil tank one, 14. Oil tank two, 15. Oil tank support arm one, 16. Oil tank support arm two, 17. Rubber-coated drive plate one, 18. Rubber-coated drive plate two, 19. Air filter one, 20. Air filter two, 21. Integrated suction oil filter one, 22. Integrated suction oil filter two, 23. Liquid level indicator one, 24. Liquid level indicator two, 25. Five hydraulic hoses, 26. Self-aligning idler set mounting plate, 29. Upper self-aligning idler set aligning beam; 30. Lower self-aligning idler set one, 31. Lower self-aligning idler set two, 35. Gear oil pump three, 36. Gear oil pump four, 37. Oil tank three, 38. Oil tank four, 39. Oil tank hanging arm one, 40. Oil tank hanging arm two, 41. Rubber-coated drive plate three, 42. Rubber-coated drive plate four, 43. Air filter three, 44. Air filter four, 45. Integrated suction oil filter three, 46. Integrated suction oil filter four, 47. Liquid level indicator three, 48. Liquid level indicator four, 51. U-shaped mounting bolt, 53. Lower self-aligning idler set aligning beam; 54. Upper fixed idler set; 55. Lower fixed idler set; 56. Foundation; 57. Upper self-aligning idler set fixed beam; 58. Lower self-aligning idler set fixed beam; 59. Oil pump oil outlet; 60. Oil pump rotating shaft; 61. Double-acting double-shaft hydraulic cylinder two; 62. Reversing protection control valve group two; 63. Cylinder barrel, 64. Guide sleeve, 65. Earring, 66. Piston, 67. A shaft, 68. B shaft, 69. Piston rod one, 70. Piston rod two, 71. Dust cover; 72. A chamber, 73. B chamber, 74. Valve body, 75. Oil sealing plug, 76. Reversing spool, 77. Overpressure protection unit A, 78. Overpressure protection unit B, 79. Oil outlet A, 80. Oil outlet B, 81. Oil return port A, 82. Oil return port B, 83. Oil cylinder connection port A, 84. Oil cylinder connection port B, 85. Steel ball, 86. Steel ball seat, 87. Spring, 88. Set screw. Detailed implementation manners

[0023] The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0024] As Figures 1-7 shown:

[0025] A self - powered hydraulic belt deviation rectification device for a mine conveyor belt of the utility model comprises a plurality of upper fixed idler groups, a plurality of lower fixed idler groups, conveyor legs, a conveyor longitudinal beam, a drum, a load - bearing upper belt surface, a return lower belt surface. The load - bearing upper belt surface and the return lower belt surface are connected to the drum. The conveyor longitudinal beam is connected to the conveyor legs, and the conveyor legs are fixed on the foundation. The bottoms of the plurality of upper fixed idler groups are fixed on the conveyor longitudinal beam. The load - bearing upper belt surface is located above the plurality of upper fixed idler groups. One end of the plurality of lower fixed idler groups is connected to the conveyor longitudinal beam, and the return lower belt surface is located on the lower fixed idler groups. The utility model further comprises a self - powered hydraulic upper deviation rectifier and a self - powered hydraulic lower deviation rectifier. The upper end of the self - powered hydraulic upper deviation rectifier contacts the load - bearing upper belt surface, and the lower end of the self - powered hydraulic upper deviation rectifier is connected to the conveyor longitudinal beam. The upper part of the self - powered hydraulic lower deviation rectifier is connected to the conveyor longitudinal beam, and the middle part of the self - powered hydraulic lower deviation rectifier contacts the return lower belt surface.

[0026] Among them: The self - powered hydraulic upper deviation rectifier includes an upper centering idler group one, an upper centering idler group two, a two - way double - shaft hydraulic cylinder one, a reversing protection control valve group one, a hydraulic cylinder support, a gear oil pump one, a gear oil pump two, a fuel tank one, a fuel tank two, a fuel tank support arm one, a fuel tank support arm two, a rubber - coated driving piece one, a rubber - coated driving piece two, an air filter one, an air filter two, an integrated oil suction filter one, an integrated oil suction filter two, a liquid level display meter one, a liquid level display meter two, five hydraulic rubber hoses, a centering idler group mounting plate, U - shaped mounting bolts, and an upper centering idler group centering beam;

[0027] The upper centering idler set 1 and the upper centering idler set 2 are connected to the longitudinal beam of the conveyor in parallel. The hydraulic cylinder support 1 is clamped between the upper centering idler set 1 and the upper centering idler set 2 with U-shaped mounting bolts and fixed on the fixed beam of the upper centering idler set. The double-direction and double-shaft hydraulic cylinder 1 is installed on the hydraulic cylinder support. The double-direction and double-shaft hydraulic cylinder 1 is connected to the centering beam of the upper centering idler set. The double-direction and double-shaft hydraulic cylinder 1 and the reversing protection control valve group 1 are integrally assembled. The oil tank support arm 1 and the oil tank support arm 2 are respectively symmetrically clamped on the longitudinal beam of the conveyor with U-shaped mounting bolts. The oil tank 1 and the oil tank 2 are respectively welded on the oil tank support arm 1 and the oil tank support arm 2. The gear oil pump 1 and the gear oil pump 2 are respectively installed in the oil tank 1 and the oil tank 2. The two oil pump rotating shafts are respectively horizontally installed and protrude outside the oil tank 1 and the oil tank 2. The integrated oil suction filter 1 and the integrated oil suction filter 2 are respectively installed at the oil suction ports of the two oil pumps. The oil outlet of the oil pump is externally arranged on the sides of the oil tank 1 and the oil tank 2 through a connecting rod. The liquid level display gauge 1 and the liquid level display gauge 2 are respectively installed on the outer sides of the oil tank 1 and the oil tank 2. The air filter 1 and the air filter 2 are respectively installed at the covers of the two oil tanks. The rubber-coated driving pieces 1 and the rubber-coated driving pieces 2 are respectively vertically installed at the head ends of the two oil pump rotating shafts; the five hydraulic rubber hoses include an oil outlet pipe between the oil tank 1 and the reversing protection control valve group 1, a return pipe, an oil outlet pipe between the oil tank 2 and the reversing protection control valve group 1, a return pipe, and a connecting pipe between the oil tank 1 and the oil tank 2.

[0028] The working principle of the self-powered hydraulic upper deviation rectifier of the present utility model: After the carrying upper belt surface runs to the left and deviates, the edge of the carrying upper belt surface will contact the left rubber-coated driving piece 1 and drive the rubber-coated driving piece 1 to rotate. The rubber-coated driving piece 1 will then drive the gear oil pump 1 to rotate, suck the hydraulic oil in the oil tank 1, and after pressurization, transfer it to the double-direction and double-shaft hydraulic cylinder 1 through the hydraulic rubber hose. The double-direction and double-shaft hydraulic cylinder 1 pushes the centering beam of the upper centering idler set forward to act, so that the upper centering idler set 1 forms an angle with the running carrying upper belt surface, generating a lateral restoring force. Under the action of the lateral restoring force, the carrying upper belt surface completes the deviation rectification process. After the carrying upper belt surface runs to the right and deviates, the edge of the carrying upper belt surface will contact the right rubber-coated driving piece 2 and drive the rubber-coated driving piece 2 to rotate. The rubber-coated driving piece 2 will then drive the gear oil pump 2 to rotate, suck the hydraulic oil in the oil tank, and after pressurization, transfer it to the double-direction and double-shaft hydraulic cylinder 1 through the five hydraulic rubber hoses. The double-direction and double-shaft hydraulic cylinder 1 pulls the centering beam of the upper centering idler set backward to act, so that the upper centering idler set 2 forms an angle with the running carrying upper belt surface, generating a lateral restoring force. Under the action of the lateral restoring force, the carrying upper belt surface completes the deviation rectification process.

[0029] The advantages of the self-powered hydraulic upper deviation rectifier of the present utility model are as follows:

[0030] 1). The two groups of upper centering idler sets simultaneously generate lateral restoring forces, increasing the deviation rectification torque and enhancing the deviation rectification effect, which is applicable to conveyors with wide conveyor belts, large transportation volumes, and high transportation speeds.

[0031] 2), When the upper belt surface of the carrier runs off track, it provides power. The power source is passive and does not require manual operation, reducing energy consumption, saving energy and reducing emissions.

[0032] 3), Gear oil pump one and gear oil pump two are respectively installed inside oil tank one and oil tank two, improving the oil suction efficiency of the oil pump, reducing the use failures of the oil pump, and improving the use efficiency of the oil pump.

[0033] 4), The bidirectional double-shaft hydraulic cylinder one is integrated with the reversing protection control valve group one, reducing the output and conveying links, and effectively improving the stability and reliability of the hydraulic system.

[0034] 5), The output shaft of the oil pump is installed horizontally, reducing the radial force on the output shaft end of the oil pump caused by the belt running off track, extending the service life of the oil pump, and reducing the use cost.

[0035] Among them: The self-powered hydraulic force lower deviation corrector includes the lower centering idler group one, the lower centering idler group two, the bidirectional double-shaft hydraulic cylinder two, the reversing protection control valve group two, the hydraulic cylinder support two, the gear oil pump three, the gear oil pump four, the oil tank three, the oil tank four, the oil tank hanging arm one, the oil tank hanging arm two, the rubber-coated driving piece three, the rubber-coated driving piece four, the air filter three, the air filter four, the integrated oil suction filter three, the integrated oil suction filter four, the liquid level display meter three, the liquid level display meter four, five hydraulic rubber hoses, the centering idler group mounting plate, the U-shaped mounting bolt, and the lower centering idler group centering beam;

[0036] The lower centering idler set one and the lower centering idler set two are connected to the longitudinal beam of the conveyor in parallel through the centering idler set mounting plate. The centering idler set mounting plate is clamped on the longitudinal beam of the conveyor with U-shaped mounting bolts. The hydraulic cylinder support two is clamped between the lower centering idler set one and the lower centering idler set two with U-shaped mounting bolts and fixed on the lower centering idler set fixed beam. The double-acting double-shaft hydraulic cylinder two is installed on the hydraulic cylinder support two. The double-acting double-shaft hydraulic cylinder two is connected to the centering beam of the lower centering idler set. The double-acting double-shaft hydraulic cylinder two and the reversing protection control valve group two are integrally assembled. The oil tank hanging arm one and the oil tank hanging arm two are respectively symmetrically clamped on the longitudinal beam of the conveyor with U-shaped mounting bolts. The oil tank three and the oil tank four are respectively welded on the oil tank hanging arm one and the oil tank hanging arm two. The gear oil pumps three and four are respectively installed in the oil tank three and the oil tank four. The two oil pump rotating shafts are respectively horizontally installed and protrude outside the oil tank three and the oil tank four. The integrated oil suction filter three and the integrated oil suction filter four are respectively installed at the oil suction ports of the two oil pumps. The oil outlet of the oil pump is externally placed on the sides of the oil tank three and the oil tank four through a connecting rod. The liquid level indicators three and four are respectively installed on the outer sides of the oil tank three and the oil tank four. The air filters three and four are respectively installed at the covers of the two oil tanks. The rubber-coated drive discs three and four are respectively vertically installed at the head ends of the two oil pump rotating shafts. The five hydraulic hoses include an oil outlet pipe between the left oil tank three and the reversing protection control valve group two, a return pipe, an oil outlet pipe between the oil tank four and the reversing protection control valve group two, a return pipe, and a connecting pipe between the oil tank three and the oil tank four.

[0037] The working principle of the self-powered hydraulic lower deviation rectifier of the present utility model: After the return lower belt surface deviates to the left during the return journey, the edge of the return lower belt surface will contact the left rubber-coated drive disc three and drive the rubber-coated drive disc three to rotate. The rubber-coated drive disc three will then drive the gear oil pump three to rotate, suck the hydraulic oil in the oil tank three, pressurize it and transfer it to the double-acting double-shaft hydraulic cylinder two through the hydraulic hose. The double-acting double-shaft hydraulic cylinder two pushes the centering beam of the lower centering idler set forward to act, so that the lower centering idler set one forms an angle with the running return lower belt surface, generating a lateral reset force. Under the action of the lateral reset force, the return lower belt surface completes the deviation rectification process. After the return lower belt surface deviates to the right during the return journey, the edge of the return lower belt surface will contact the left rubber-coated drive disc four and drive the rubber-coated drive disc four to rotate. The rubber-coated drive disc four will then drive the gear oil pump four to rotate, suck the hydraulic oil in the oil tank four, pressurize it and transfer it to the double-acting double-shaft hydraulic cylinder two through the hydraulic hose. The double-acting double-shaft hydraulic cylinder two pulls the centering beam of the lower centering idler set backward to act, so that the lower centering idler set two forms an angle with the running return lower belt surface, generating a lateral reset force. Under the action of the lateral reset force, the return lower belt surface completes the deviation rectification process.

[0038] The advantages of the self-powered hydraulic lower deviation rectifier of the present utility model are as follows:

[0039] 1) Two sets of lower centering rollers generate lateral restoring force at the same time, which increases the correction torque and the correction effect. It is suitable for wide conveyor belts, large conveying capacity and fast conveying speed conveyors.

[0040] 2) The conveyor belt is used to provide power when it deviates. It has a passive power source and does not require manual labor, which reduces energy consumption and saves energy and reduces emissions.

[0041] 3) Gear oil pump three and gear oil pump four are installed inside oil tank three and oil tank four respectively, which improves the oil suction efficiency of the oil pump, reduces oil pump failures and improves the efficiency of oil pump use.

[0042] 4) The two-way dual-axis hydraulic cylinder 2 is integrated with the reversing protection control valve group 2, which reduces the output transmission links and effectively improves the stability and reliability of the hydraulic system.

[0043] 5) The oil pump output shaft is installed horizontally, which reduces the radial force on the output shaft end of the oil pump caused by the deviation of the conveyor belt, extends the service life of the oil pump and reduces the cost of use.

[0044] The bidirectional double-axis hydraulic cylinder includes a bidirectional double-axis hydraulic cylinder 1 and a bidirectional double-axis hydraulic cylinder 2; the bidirectional double-axis hydraulic cylinder used by the passive self-driven hydraulic lower deviation corrector has the same structure as the bidirectional double-axis hydraulic cylinder used by the passive self-driven hydraulic upper deviation corrector; wherein, the bidirectional double-axis hydraulic cylinder is composed of: a cylinder barrel, two guide sleeves, two earrings, a piston, an A axis, a B axis, a piston rod 1, a piston rod 2, and a dust cover; the two guide sleeves are installed at both ends of the cylinder barrel, the A axis and the B axis are fixed at both ends of the piston and installed in the cylinder barrel, the A axis is connected to the piston rod 1, the B axis is connected to the piston rod 2, and forms an integral linkage with the piston, the piston rod 1 and the piston rod 2 are both equipped with dust covers, and the front ends of the piston rod 1 and the piston rod 2 are both equipped with earrings, which are convenient for connecting the upper self-aligning roller group self-aligning beam or the lower self-aligning roller group self-aligning beam.

[0045] Gear oil pump, manufacturer: Taizhou Suzhong Hydraulic Parts Factory, but not limited to this product; Rubber-coated drive plate, manufacturer: Hebei Pengyu Metallurgical Machinery Manufacturing Co., Ltd., but not limited to this product; Air filter, manufacturer: Wuxi Liqiang Hydraulic Parts Factory, but not limited to this product; Integrated oil suction filter, manufacturer, Wuxi Liqiang Hydraulic Parts Factory, but not limited to this product; Liquid level display gauge, manufacturer: Wuxi Liqiang Hydraulic Parts Factory, but not limited to this product.

[0046] The reversing protection control valve group includes a reversing protection control valve group 1 and a reversing protection control valve group 2; the reversing protection control valve group used by the passive self-driven hydraulic lower corrector and the passive self-driven hydraulic upper corrector has the same structure; wherein the reversing protection control valve group includes a valve body, an oil sealing plug, a reversing valve core, an overpressure protection unit A, an overpressure protection unit B, an oil outlet A, an oil outlet B, an oil return port A, an oil return port B, a cylinder connection port A, and a cylinder connection port B.

[0047] The valve body is butt - assembled with a double - acting double - shaft hydraulic cylinder. The reversing spool is placed inside the valve body. The oil outlet A and the oil outlet B are located on both sides of the valve body respectively; the oil return port A and the oil return port B are located on both sides of the valve body respectively. The over - pressure protection unit A and the over - pressure protection unit B are located on both sides of the valve body. The oil cylinder connection port A and the oil cylinder connection port B are placed at the bottom of the valve body and are connected to the oil inlet and outlet of the double - acting double - shaft hydraulic cylinder; the oil outlet A is connected to the first gear oil pump, the oil outlet B is connected to the second gear oil pump, the oil return port A is connected to the first oil tank, and the oil return port B is connected to the second oil tank; the reversing spool controls the opening and closing of the internal channel of the valve body through pressure oil. If the gear oil pump works for a long time and the pressure is too high, at this time, the over - pressure protection unit relieves the pressure of the pressure oil and flows it back to the oil tank to form a cycle.

[0048] The over - pressure protection unit includes the over - pressure protection unit A and the over - pressure protection unit B;

[0049] The over - pressure protection unit is composed of a steel ball, a steel ball seat, a spring, a setscrew, and an oil - sealing plug;

[0050] The over - pressure protection unit has a counterbore drilled in the internal channel of the valve body. A steel ball is placed in the counterbore, the steel ball seat is placed above the steel ball, a spring is placed on the steel ball seat, the setscrew is pressed on top of the spring, and the oil - sealing plug is at the top of the over - pressure protection unit; the setscrew is screwed to the required pressure value according to the test data; when the pressure is normal, the steel ball is pressed by the spring and normally seals the overflow channel, and the system works normally; if the oil pump works for a long time and the pressure is too high, exceeding the set pressure value, the pressure oil will lift the steel ball, the channel opens, and the excessive pressure oil flows back to the oil tank to prevent system damage caused by excessive pressure.

[0051] Obviously, the above - mentioned embodiments of the present utility model are only examples for clearly explaining the present utility model, and are not limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, other different forms of changes or variations can be made on the basis of the above description. It is impossible to list all the implementation manners here. Any obvious changes or variations derived from the technical solutions of the present utility model still fall within the protection scope of the present utility model.

Claims

1. A passive self-driven hydraulic deviation correction device for a conveyor belt of a mining conveyor, comprising a plurality of upper fixed roller groups, a plurality of lower fixed roller groups, a conveyor leg, a conveyor longitudinal beam, a roller, a load-bearing upper belt surface, a return lower belt surface, the load-bearing upper belt surface and the return lower belt surface are connected to the roller, the conveyor longitudinal beam is connected to the conveyor leg, the conveyor leg is fixed on the foundation, the bottom of the plurality of upper fixed roller groups is fixed on the conveyor longitudinal beam, the load-bearing upper belt surface is located on the upper part of the plurality of upper fixed roller groups, one end of the plurality of lower fixed roller groups is connected to the conveyor longitudinal beam, and the return lower belt surface is located on the lower fixed roller group, characterized in that: It also includes a passive self-driven hydraulic upper deviation corrector and a passive self-driven hydraulic lower deviation corrector, wherein the upper end of the passive self-driven hydraulic upper deviation corrector contacts the upper bearing belt surface, the lower end of the passive self-driven hydraulic upper deviation corrector is connected to the longitudinal beam of the conveyor, the upper part of the passive self-driven hydraulic lower deviation corrector is connected to the longitudinal beam of the conveyor, and the middle part of the passive self-driven hydraulic lower deviation corrector contacts the return lower belt surface.

2. A passive self-driven hydraulic deviation correction device for a conveyor belt of a mining conveyor according to claim 1, characterized in that: The passive self-driven hydraulic upper deviation corrector comprises an upper self-aligning roller group 1, an upper self-aligning roller group 2, a bidirectional dual-axis hydraulic cylinder 1, a reversing protection control valve group 1, a hydraulic cylinder bracket, a gear oil pump 1, a gear oil pump 2, an oil tank 1, an oil tank 2, an oil tank support arm 1, an oil tank support arm 2, a rubber-coated drive sheet 1, a rubber-coated drive sheet 2, an air filter 1, an air filter 2, an integrated oil suction filter 1, an integrated oil suction filter 2, a liquid level display gauge 1, a liquid level display gauge 2, five hydraulic hoses, a self-aligning roller group mounting plate, a U-shaped mounting bolt, and a self-aligning beam of the upper self-aligning roller group; The upper self-aligning roller group 1 and the upper self-aligning roller group 2 are connected to the conveyor longitudinal beam in parallel, the hydraulic cylinder bracket 1 is clamped between the upper self-aligning roller group 1 and the upper self-aligning roller group 2 with U-shaped mounting bolts, and fixed on the upper self-aligning roller group fixed beam, the bidirectional double-axis hydraulic cylinder 1 is installed on the hydraulic cylinder bracket, the bidirectional double-axis hydraulic cylinder 1 is connected to the upper self-aligning roller group self-aligning beam, the bidirectional double-axis hydraulic cylinder 1 is integrated with the reversing protection control valve group 1, the oil tank support arm 1 and the oil tank support arm 2 are symmetrically clamped on the conveyor longitudinal beam with U-shaped mounting bolts, the oil tank 1 and the oil tank 2 are respectively welded on the oil tank support arm 1 and the oil tank support arm 2, the gear oil pump 1 and the gear oil pump 2 are respectively installed in the oil tank 1 and the oil tank 2, and the two oil pump rotating shafts are respectively It is installed horizontally and protrudes from the outside of oil tank one and oil tank two, integrated oil suction filter one and integrated oil suction filter two are respectively installed at the oil suction ports of the two oil pumps, and the oil outlet of the oil pump is placed on the sides of oil tank one and oil tank two through a connecting rod, liquid level indicator one and liquid level indicator two are respectively installed on the outer sides of oil tank one and oil tank two, air filter one and air filter two are respectively installed on the two oil tank covers, rubber-coated drive plate one and rubber-coated drive plate two are respectively vertically installed on the heads of the rotating shafts of the two oil pumps; the five hydraulic hoses include an oil outlet pipe and an oil return pipe between oil tank one and reversing protection control valve group one, an oil outlet pipe and an oil return pipe between oil tank two and reversing protection control valve group one, and a connecting pipe between oil tank one and oil tank two.

3. A passive self-driven hydraulic deviation correction device for a conveyor belt of a mining conveyor according to claim 1, characterized in that: The passive self-driven hydraulic lower deviation corrector comprises a lower centering roller group 1, a lower centering roller group 2, a two-way double-axis hydraulic cylinder 2, a reversing protection control valve group 2, a hydraulic cylinder bracket 2, a gear oil pump 3, a gear oil pump 4, a fuel tank 3, a fuel tank 4, a fuel tank hanging arm 1, a fuel tank hanging arm 2, a rubber-coated drive sheet 3, a rubber-coated drive sheet 4, an air filter 3, a air filter 4, an integrated oil suction filter 3, an integrated oil suction filter 4, a liquid level display gauge 3, a liquid level display gauge 4, five hydraulic hoses, a centering roller group mounting plate, a U-shaped mounting bolt, and a centering beam of the lower centering roller group; The lower centering roller group 1 and the lower centering roller group 2 are parallel and connected to the conveyor longitudinal beam through the centering roller group mounting plate. The centering roller group mounting plate is clamped on the conveyor longitudinal beam with U-shaped mounting bolts. The hydraulic cylinder bracket 2 is clamped between the lower centering roller group 1 and the lower centering roller group 2 with U-shaped mounting bolts and fixed on the lower centering roller group fixed beam. The two-way double-axis hydraulic cylinder 2 is installed on the hydraulic cylinder bracket. The two-way double-axis hydraulic cylinder 2 is connected to the centering beam of the lower centering roller group. The two-way double-axis hydraulic cylinder 2 is integrated with the reversing protection control valve group 2. The oil tank hanging arm 1 and the oil tank hanging arm 2 are symmetrically clamped on the conveyor longitudinal beam with U-shaped mounting bolts. The oil tank 3 and the oil tank 4 are respectively welded on the oil tank hanging arm 1 and the oil tank hanging arm 2. The gear oil pump 3 and the gear oil pump 4 are respectively installed in the oil tank In the Sanhe oil tank four, the two oil pump rotating shafts are respectively installed horizontally and protrude from the outside of the oil tank three and the oil tank four, the integrated oil suction filter three and the integrated oil suction filter four are respectively installed at the oil suction ports of the two oil pumps, and the oil pump outlet is externally arranged on the sides of the oil tank three and the oil tank four through a connecting rod, the liquid level display gauge three and the liquid level display gauge four are respectively installed on the outer sides of the oil tank three and the oil tank four, the air filter three and the air filter four are respectively installed at the two oil tank covers, the rubber-coated drive plate three and the rubber-coated drive plate four are respectively vertically installed on the head ends of the two oil pump rotating shafts; the five hydraulic hoses include an oil outlet pipe and an oil return pipe between the left oil tank three and the reversing protection control valve group two, an oil outlet pipe and a oil return pipe between the oil tank four and the reversing protection control valve group two, and a connecting pipe between the oil tank three and the oil tank four.

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