Search

CN-121976761-A - Lifting device for anchor bolt support, anchor bolt support equipment and tunneling and anchoring integrated machine

CN121976761ACN 121976761 ACN121976761 ACN 121976761ACN-121976761-A

Abstract

The invention provides a lifting device for supporting an anchor rod, anchor rod supporting equipment and an excavating and anchoring integrated machine, wherein the lifting device for supporting the anchor rod comprises a base frame, a primary lifting assembly, a secondary lifting assembly and a mounting seat, and the base frame comprises a base seat and a guide seat which are connected; the first-stage lifting assembly comprises a long feeding oil cylinder and a sliding frame, the sliding frame is in sliding fit with the guide seat, a rodless cavity and a rod cavity are formed in the long feeding oil cylinder, the sliding frame comprises a top plate and a middle plate, a first oil duct and a second oil duct are formed in the top plate, the second-stage lifting assembly comprises a double-shaft oil cylinder, the double-shaft oil cylinder comprises a movable cylinder barrel and a double-shaft piston rod, a lifting cavity and a descending cavity are formed in the movable cylinder barrel, two ends of the first oil duct are connected with the rodless cavity and the lifting cavity, two ends of the second oil duct are connected with the rod cavity and the descending cavity, and the installation seat and the movable cylinder barrel synchronously move and are used for installing an anchor rod drilling box. The invention not only can reduce the use of the exposed oil pipe and reduce the damage risk of the oil pipe, but also has more accurate lifting and lifting control.

Inventors

  • XIE GEHUI
  • LIU WENWU
  • JIA JIANWEI
  • Zhang Simo
  • ZHAO JIANGBO
  • ZHENG JI
  • SUN KUI
  • WANG NINGNING
  • WANG XIPENG
  • XU SEN
  • ZHANG XUERUI
  • XU PENG
  • QIAO YANHUA
  • HAN PENGCHENG
  • LIU SHUDIAN

Assignees

  • 中国煤炭科工集团太原研究院有限公司
  • 山西天地煤机装备有限公司

Dates

Publication Date
20260505
Application Date
20251224

Claims (10)

  1. 1. A lifting device for an anchor bolt support, comprising: the device comprises a base frame (11), wherein the base frame (11) comprises a base (112) and a guide seat (113) which are connected; The primary lifting assembly (13), the primary lifting assembly (13) comprises a long feeding oil cylinder (131) and a sliding frame (132), the sliding frame (132) is in sliding fit with the guide seat (113), a rodless cavity (1311) and a rod cavity (1312) are arranged in the long feeding oil cylinder (131), the sliding frame (132) comprises a top plate (1321) and an intermediate plate (1322) which are oppositely arranged, two ends of the long feeding oil cylinder (131) are correspondingly connected with the base (112) and the top plate (1321), and a first oil duct (13211) and a second oil duct (13212) are arranged in the top plate (1321); The two-stage lifting assembly (15), the two-stage lifting assembly (15) comprises a double-shaft oil cylinder (151), the double-shaft oil cylinder (151) comprises a movable cylinder barrel (152) and a double-shaft piston rod (153), two ends of the double-shaft piston rod (153) are correspondingly connected with the middle plate (1322) and the top plate (1321), the movable cylinder barrel (152) is slidably sleeved on the outer side of the double-shaft piston rod (153), a lifting cavity (1521) and a descending cavity (1522) are arranged in the movable cylinder barrel (152), two ends of a first oil duct (13211) are connected with the rodless cavity (1311) and the lifting cavity (1521), and two ends of a second oil duct (13212) are connected with the rod cavity (1312) and the descending cavity (1522); the installation seat (17), the installation seat (17) is arranged on the movable cylinder barrel (152), the installation seat (17) and the movable cylinder barrel (152) synchronously move, and the installation seat (17) is used for installing the anchor rod drilling box (21).
  2. 2. The lifting device for bolt support according to claim 1, wherein a sequence valve (133) is provided on the second oil passage (13212), the sequence valve (133) being used for defining a descending sequence of the long feed cylinder (131) and the double-shaft cylinder (151), a piston area in the double-shaft cylinder (151) being larger than a piston area in the long feed cylinder (131) to define a lifting sequence of the long feed cylinder (131) and the double-shaft cylinder (151).
  3. 3. The anchor bolt support lifting device according to claim 2, wherein the secondary lifting assembly (15) further comprises a guide post (155), two ends of the guide post (155) are correspondingly connected with the top plate (1321) and the middle plate (1322), and the mounting seat (17) is provided with a guide hole (171) matched with the guide post (155).
  4. 4. A lifting device for bolt support according to claim 3, wherein the top plate (1321) is provided with a mounting hole (13217) and a third oil duct (13218), one end of the guide post (155) is mounted in the mounting hole (13217), the sequence valve (133) is provided with an oil discharging port (1331), two ends of the third oil duct (13218) are communicated with the oil discharging port (1331) and the mounting hole (13217), and hydraulic oil in the sequence valve (133) flows along the guide post (155) to lubricate the mounting seat (17) and the guide post (155).
  5. 5. A lifting device for bolt support according to claim 2, characterized in that the side of the top plate (1321) facing the mounting seat (17) is provided with a mounting groove (13216), and the sequence valve (133) is detachably mounted in the mounting groove (13216).
  6. 6. The lifting device for bolt bearing according to claim 1, wherein the secondary lifting assembly (15) further comprises a chain multiplication mechanism (19), the chain multiplication mechanism (19) comprises a first sprocket (191), a second sprocket (192), a chain (193) and a fixing frame (194), the first sprocket (191) and the second sprocket (192) are respectively arranged at two opposite ends of the movable cylinder barrel (152), the chain (193) is wound on the first sprocket (191) and the second sprocket (192) to form a working section (1931) and a non-working section (1932), the mounting seat (17) is arranged at the working section (1931), the non-working section (1932) is connected with the fixing frame (194), and the fixing frame (194) is arranged at the top plate (1321) or the middle plate (1322).
  7. 7. The lifting device for bolt support according to claim 6, wherein the chain multiplication mechanism (19) further comprises a tensioner (195), the tensioner (195) being provided on the movable cylinder (152), one of the first sprocket (191) and the second sprocket (192) being provided at an output end of the tensioner (195).
  8. 8. A lifting device for bolt supports according to claim 1, characterized in that the long feed cylinder (131) is hinged to the base (112); And/or, the long feeding cylinder (131) and the double-shaft oil cylinder (151) are both arranged at the middle position of the base frame (11), and one long feeding cylinder (131) and one double-shaft oil cylinder (151) are both arranged; And/or, the long feeding cylinder (131) is provided with two oil supply ports (1316), the two oil supply ports (1316) are respectively communicated with the rod cavity (1312) and the rodless cavity (1311), and a balance valve (134) is arranged at the oil supply port (1316); And/or, be equipped with guiding hole (1131) on guide holder (113), carriage (132) still include guide bar (1323), guide bar (1323) both ends correspond connect roof (1321) with intermediate plate (1322), guide bar (1323) slip wears to locate in guiding hole (1131).
  9. 9. An anchor bolt support apparatus comprising a drill box and a lifting device for anchor bolt support as claimed in any one of claims 1 to 8, the drill box (21) being detachably provided to the mounting (17).
  10. 10. An all-in-one machine for excavating and anchoring comprising the anchor bolt supporting equipment according to claim 9.

Description

Lifting device for anchor bolt support, anchor bolt support equipment and tunneling and anchoring integrated machine Technical Field The invention relates to the technical field of coal mine roadway support, in particular to a lifting device for anchor bolt support, anchor bolt support equipment and an excavating and anchoring integrated machine. Background In the coal mining process, anchor bolt support is widely used as a fast, safe and economical roadway support mode. In the course of the operation of the bolt support, in order to adapt to the anchor positions of different heights, a lifting mechanism is usually provided for adjusting the height of the jumbolter. In the related art, in the adjusting process of the lifting mechanism, the oil cylinder in the lifting mechanism needs to frequently reciprocate, and the oil cylinder is connected with an external oil path system through a communication oil pipe. In the reciprocating motion process of the oil cylinder, the communicating oil pipe can be continuously subjected to acting forces such as stretching and bending, and the abrasion phenomenon is extremely easy to occur after long-term use. As the degree of wear increases, the oil pipe may even be damaged, resulting in leakage of hydraulic oil. Disclosure of Invention The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, the embodiment of the invention provides a lifting device for anchor bolt support, anchor bolt support equipment and an excavating and anchoring integrated machine, and the lifting device for anchor bolt support not only reduces the use of bare oil pipes and reduces the risk of damage of the oil pipes, but also has more accurate lifting and lifting control. The invention provides a lifting device for anchor bolt support, comprising: The base frame comprises a base and a guide seat which are connected; The primary lifting assembly comprises a long feeding oil cylinder and a sliding frame, the sliding frame is in sliding fit with the guide seat, a rodless cavity and a rod cavity are arranged in the long feeding oil cylinder, the sliding frame comprises a top plate and a middle plate which are oppositely arranged, two ends of the long feeding oil cylinder are correspondingly connected with the base and the top plate, and a first oil duct and a second oil duct are arranged in the top plate; the two-stage lifting assembly comprises a double-shaft oil cylinder, the double-shaft oil cylinder comprises a movable cylinder barrel and a double-shaft piston rod, two ends of the double-shaft piston rod are correspondingly connected with the middle plate and the top plate, the movable cylinder barrel is sleeved on the outer side of the double-shaft piston rod in a sliding mode, a lifting cavity and a descending cavity are arranged in the movable cylinder barrel, two ends of a first oil duct are connected with the rodless cavity and the lifting cavity, and two ends of a second oil duct are connected with the rod cavity and the descending cavity; The installation seat is arranged on the movable cylinder barrel, the installation seat and the movable cylinder barrel synchronously move, and the installation seat is used for installing the anchor rod drilling box. In summary, the lifting device for the anchor rod support provided by the invention works cooperatively with the double-shaft oil cylinder through the long feed oil cylinder and realizes graded driving through the first oil duct and the second oil duct in the top plate, thereby completing the lifting and the lowering of the anchor rod drilling box, reducing the use of bare oil pipes, reducing the risk of damage to the oil pipes, and ensuring more accurate lifting and lifting control. In some embodiments, a sequence valve is disposed on the second oil passage, the sequence valve being configured to define a descending sequence of the long feed cylinder and the double-shaft cylinder, a piston area in the double-shaft cylinder being larger than a piston area in the long feed cylinder to define a lifting sequence of the long feed cylinder and the double-shaft cylinder. In some embodiments, the secondary lifting assembly further comprises a guide post, two ends of the guide post are correspondingly connected with the top plate and the middle plate, and the mounting seat is provided with a guide hole matched with the guide post. In some embodiments, the top plate is provided with a mounting hole and a third oil duct, one end of the guide post is mounted in the mounting hole, the sequence valve is provided with an oil discharge port, and two ends of the third oil duct are communicated with the oil discharge port and the mounting hole, so that hydraulic oil in the sequence valve flows along the guide post to lubricate the mounting seat and the guide post. In some embodiments, a mounting groove is formed in the side, facing the mounting seat, of the top plate, and the sequence valve is detac