Quick docking device and anchor rod working arm

Abstract

This invention discloses a rapid docking device and an anchor bolt working arm. The rapid docking device includes: a sleeve base for structural support, with its first end connected to a propulsion mechanism; a guide connecting seat disposed at the second end of the sleeve base, the first end face of the guide connecting seat slidingly engaging with the second end face of the sleeve base, and the second end of the guide connecting seat having a guiding structure for engaging with a water-expanding anchor bolt; and tension members evenly distributed around the circumference of the sleeve base and at a preset angle to the axis of the sleeve base, used to connect the sleeve base and the guide connecting seat respectively to axially position the guide connecting seat relative to the sleeve base and to drive the guide connecting seat, which has experienced radial displacement, to reset. This rapid docking device has a simplified overall structure, and the anchor bolt working arm using this device operates simply, enabling mechanized construction of water-expanding anchor bolts, reducing labor costs and workload, and significantly improving safety and operational efficiency.

Description

Technical Field

[0001] This invention relates to the field of anchor bolt support operation technology, and in particular, to a quick docking device and an anchor bolt working arm. Background Technology

[0002] In anchor bolt support operations, anchor bolt installation currently relies primarily on a lifting platform combined with manual labor, with a small amount of semi-mechanized work achieved using simple welded threaded connecting rods. Water-expanding anchor bolts, also known as hydraulically expandable anchor bolts, are currently installed using the following method: In the support area, the water-expanding anchor bolt is manually inserted into the anchor hole. Then, a handheld anchor bolt connecting device is connected to the end of the water-expanding anchor bolt. This connecting device is then connected to a high-pressure water pump station, and high-pressure water is injected into the water-expanding anchor bolt until it deforms, expands, and anchors to the rock wall. After the high-pressure water is released, the handheld connecting device is removed, completing the water-expanding anchor bolt anchoring operation. This current construction method has at least the following problems: the rock wall in the area requiring anchoring support... The water-expanding anchor bolts are fragile and unstable, posing safety hazards for manual work in the anchoring area. During the pressurization and filling process, the expansion of the anchor bolts compresses the rock wall, increasing the risk of rockfalls or even landslides. Manual work in the support area requires manual handling of both the water-expanding anchor bolts and the handheld anchor bolt connection device, sometimes necessitating hoisting and the use of support platforms. This process is complex, labor-intensive, and inefficient. Because the rear end of the water-expanding anchor bolt needs to be connected to high-pressure water, to ensure no leakage and controllable expansion speed and pressure, the anchor bolts are currently manually inserted into the anchor holes and then connected using handheld connection devices. This combination of dangerous work conditions, high labor intensity, and low efficiency further hinders the widespread application of water-expanding anchor bolts.

[0003] The patent disclosed in publication number CN101160451 B presents a device for installing hydraulically expanded anchor bolts and a method for installing the anchor bolts. The device has a chuck at its distal end for connection to the expanded anchor bolt, and a clamping part at its proximal end for connection to the drilling machine's propulsion mechanism. A bending device, consisting of two axially extending elastic components and a connecting rod, connects the proximal and distal ends, enabling radial parallel displacement between them. This technical solution has a relatively complex connection structure. The weight of the distal component causes the bending device to sag naturally in its initial state, resulting in a small axial displacement range for capturing the anchor bolt. Furthermore, the device has a long axial extension dimension, making the bending device vulnerable to impact from falling rocks. The complex structure also makes it susceptible to damage from impacts.

[0004] For example, patent CN210460718U discloses a quick connection device for hollow grouting anchors. This device optimizes the welding seat at the tail end of the hollow grouting anchor, which was originally welded, into a threaded connection seat. The front end of the threaded connection seat is threaded to the tail end of the hollow grouting anchor, and the rear end of the threaded connection seat is equipped with a rotary joint and then connected to the grouting pipeline via a quick connector, realizing a detachable and quick connection device between the hollow anchor and the grouting pipeline. However, this device still requires manual installation of the hollow grouting anchor in the support area, failing to solve the problems of mechanized construction and the need for unmanned operation in dangerous support areas. Summary of the Invention

[0005] This invention provides a quick docking device and an anchor bolt working arm to solve the technical problems of high safety risks and application difficulties caused by the need for manual operation in dangerous areas to support water-expanding anchor bolts in the prior art.

[0006] The technical solution adopted in this invention is as follows:

[0007] A quick-connect device is provided for connecting a propulsion mechanism of an anchor bolt working arm to a water-expanding anchor bolt, the quick-connect device comprising:

[0008] A sleeve base is used as a structural support, and its first end is used to connect to the propulsion mechanism.

[0009] A guide connector is provided at the second end of the sleeve base. The first end face of the guide connector is slidably engaged with the second end face of the sleeve base. The second end of the guide connector has a guide structure for engaging with the water-expanding anchor rod.

[0010] A tension member is evenly distributed around the circumference of the sleeve base and at a preset angle to the axis of the sleeve base. It is used to connect the sleeve base and the guide connecting seat respectively so that the guide connecting seat is axially positioned relative to the sleeve base and to drive the guide connecting seat that has generated radial displacement to reset.

[0011] As a further improvement to the above technical solution, the sleeve base includes a base plate, a connector disposed on a first side of the base plate, and a cylinder disposed on a second side of the base plate. The first ends of the base plate and the guide connecting seat are respectively provided with angle brackets for connecting with the tension member.

[0012] As a further improvement to the above technical solution, the cylinder is provided with an installation window that matches the distribution position of the tension member for installing the tension member.

[0013] As a further improvement to the above technical solution, an oil groove is provided on the end face of the cylinder barrel facing the guide connecting seat, and the cylinder barrel is provided with an oil guiding structure that communicates with the oil groove, for guiding lubricating oil between the guide connecting seat and the cylinder barrel.

[0014] As a further improvement to the above technical solution, the oil guiding structure includes an oil injection channel opened in the cylinder barrel, the first end of the oil injection channel is located on the side wall of the cylinder barrel and an oil nozzle is provided at the first end of the oil injection channel, and the second end of the oil injection channel is connected to the oil groove.

[0015] As a further improvement to the above technical solution, the first end of the guide connecting seat and / or the second end of the sleeve base are provided with a mating structure to limit the radial offset range of the guide connecting seat relative to the sleeve base.

[0016] As a further improvement to the above technical solution, the guide connecting seat includes a sliding plate for engaging with the second end face of the sleeve base and a guide sleeve disposed on the sliding plate. The guide sleeve is provided with a water injection connector for engaging with the water-expanding anchor rod.

[0017] As a further improvement to the above technical solution, the tensioning component is a tension spring with traction hooks at both ends.

[0018] According to another aspect of the invention, an anchor bolt working arm is also provided, which utilizes any of the quick-connect devices described above.

[0019] As a further improvement to the above technical solution, the anchor bolt working arm includes a propulsion mechanism, a propulsion beam connected to the propulsion mechanism, an anchor bolt magazine disposed on one side of the propulsion beam, and a gripper mechanism installed on the propulsion beam.

[0020] The present invention has the following beneficial effects:

[0021] In this quick-connect device, the sleeve base is used to connect with the propulsion mechanism of the anchor bolt working arm. The guide connector is equipped with a guide structure to capture the tail end of the water-expanding anchor bolt over a larger radial range, making it easier to capture the tail end of the water-expanding anchor bolt that has experienced radial deviation. The guide connector is pulled and pressed against the second end of the sleeve base by a tension member, and the tension member and the sleeve base are arranged at a preset angle. This allows the quick-connect device to transmit the axial thrust of the propulsion device and enables the guide connector to slide radially relative to the sleeve base within a certain range. After the guide sleeve captures the tail end of the water-expanding anchor bolt, it moves towards the direction of the water-expanding anchor bolt under the axial propulsion of the propulsion device. The mating position of the water-expanding anchor bolt and the guide structure gradually approaches the center of the guide structure. Under the radial reaction force of the water-expanding anchor bolt, the guide connector passively offsets radially relative to the sleeve base, realizing the water expansion. The radial passive compensation between the anchor bolt and the propulsion mechanism compensates for the radial deviation between the water-expanding anchor bolt and the propulsion device, preventing the radial deviation of the water-expanding anchor bolt from affecting the sealing performance. It also facilitates the remote automatic installation of the water-expanding anchor bolt by the anchor bolt working arm, avoiding manual operation, reducing labor, and improving construction efficiency. The tension member and the sleeve base are arranged at a preset angle. When the guide connecting seat is not connected to the water-expanding anchor bolt, it can automatically return to the center under the tension provided by the tension member, making its position tend to be closer to the centerline of the sleeve base. This allows the guide structure to more smoothly capture the tail end of the water-expanding anchor bolt that has experienced radial deviation during subsequent connection. The overall structure of this quick connection device is simplified, and the operation of the anchor bolt working arm using this quick connection device is simple, realizing mechanized construction of water-expanding anchor bolts, reducing labor costs and labor intensity, and significantly improving safety and work efficiency.

[0022] In addition to the objectives, features, and advantages described above, the present invention has other objectives, features, and advantages. The invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0023] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0024] Figure 1 This is a schematic diagram of the anchor bolt working arm structure according to a preferred embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the quick connection device structure according to a preferred embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the sleeve base structure of a preferred embodiment of the present invention;

[0027] 1. Water-expanding anchor bolt 2. Clamping mechanism 3. Propulsion beam 4. Quick connection device 41. Connector 42. Sleeve base 421. Base plate 4211. First circular boss 422. Cylinder 423. Oil nozzle 424. Oil groove 43. Guide connecting seat 431. Slide plate 4311. Second circular boss 432. Guide sleeve 433. Water injection connector 434. Mountain-shaped seal 44. Angle code 45. Tensioning component 5. Anchor bolt magazine 6. Propulsion device. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] Reference Figures 1 to 3 A preferred embodiment of the present invention provides a quick connection device 4 for connecting the propulsion mechanism of the anchor bolt working arm to the water-expanding anchor bolt 1. The quick connection device 4 includes:

[0030] The sleeve base 42 is used as a structural support, and its first end is used to connect with the propulsion mechanism.

[0031] The guide connecting seat 43 is used to be disposed at the second end of the sleeve base 42. The first end face of the guide connecting seat 43 is slidably engaged with the second end face of the sleeve base 42. The second end of the guide connecting seat 43 has a guide structure for cooperating with the water-expanding anchor rod 1.

[0032] The tension member 45 is evenly distributed around the sleeve base 42 and at a preset angle to the axis of the sleeve base 42. It is used to connect the sleeve base 42 and the guide connecting seat 43 respectively so that the guide connecting seat 43 is axially positioned relative to the sleeve base 42 and is used to drive the guide connecting seat 43 that has generated radial displacement to reset.

[0033] The guide structure is a conical flared opening located at the second end of the guide connector 43, meaning that the inner diameter of the second end of the guide connector 43 gradually decreases.

[0034] Understandably, in this quick-connect device 4, the sleeve base 42 is used to connect with the propulsion mechanism of the anchor working arm. The guide connecting seat 43 is provided with a guide structure to capture the tail end of the water-expanding anchor 1 within a larger radial range, and to more smoothly capture the tail end of the water-expanding anchor 1 that has generated radial deviation. The guide connecting seat 43 is pulled and pressed against the second end of the sleeve base 42 by the tension member 45, and the tension member 45 and the sleeve base 42 are arranged at a preset angle, so that the quick-connect device 4 can transmit the axial thrust of the propulsion device 6 and allow the guide connecting seat 43 to slide radially relative to the sleeve base 42 within a certain range. After the guide sleeve 432 captures the tail end of the water-expanding anchor 1, it moves towards the water-expanding anchor 1 under the axial propulsion of the propulsion device 6. The matching position of the water-expanding anchor 1 and the guide structure gradually approaches the center of the guide structure. Under the radial reaction force of the water-expanding anchor 1, the guide connecting seat 43 relative to the sleeve base 42 generates The device passively offsets radially, achieving passive radial compensation between the water-expanding anchor rod 1 and the propulsion mechanism. This compensates for the radial deviation between the water-expanding anchor rod 1 and the propulsion device 6, preventing the radial deviation of the water-expanding anchor rod 1 from affecting the sealing performance. It also facilitates the remote automatic installation of the water-expanding anchor rod 1 by the anchor rod working arm, avoiding manual operation, reducing labor, and improving construction efficiency. The tension member 45 and the sleeve base 42 are arranged at a preset angle. When the guide connecting seat 43 is not connected to the water-expanding anchor rod 1, it can automatically return to the center under the tension provided by the tension member 45, making its position tend to the centerline of the sleeve base 42. This allows the guide structure to more smoothly capture the tail end of the water-expanding anchor rod 1 that has generated radial deviation during subsequent connection. The overall structure of this quick connection device is simplified, and the operation of the anchor rod working arm using this quick connection device is simple, realizing mechanized construction of the water-expanding anchor rod 1, reducing labor costs and labor intensity, and significantly improving safety and work efficiency.

[0035] In this embodiment, the sleeve base 42 includes a base plate 421, a connector 41 disposed on the first side of the base plate 421, and a cylinder 422 disposed on the second side of the base plate 421. The first ends of the base plate 421 and the guide connecting seat 43 are respectively provided with angle brackets 44 for connecting with the tension member 45. The connector 41 is used to fix the base plate 421 to the propulsion mechanism.

[0036] Among them, the tension member 45 is a tension spring with traction hooks at both ends. The number of tension members 45 is set according to actual needs. In this embodiment, four are evenly distributed in the circumference as an example. The traction hooks at both ends are respectively connected to the corner brackets 44 on the base plate 421 and the corner brackets 44 on the guide connecting seat 43.

[0037] It should be noted that the tension component 45 is installed inside the cylinder 422, with the sleeve base 42 as the main body. The cylinder 422 effectively protects the relatively weak tension spring, preventing damage to the device caused by falling rocks and other factors. This makes the overall structure of the device simpler, more stable, and more reliable in use.

[0038] Furthermore, the cylinder 422 has an installation window that matches the distribution position of the tension member 45 for installing the tension member 45. During installation, after the tension spring passes through the installation window, the two end traction hooks are connected to the corner brackets 44 on the base plate 421 and the corner brackets 44 on the guide connecting seat 43, respectively, which facilitates assembly.

[0039] In this embodiment, an oil groove 424 is provided on the end face of the cylinder 422 facing the guide connecting seat 43. The cylinder 422 is provided with an oil guiding structure that communicates with the oil groove 424, which is used to guide the lubricating oil between the guide connecting seat 43 and the cylinder 422 to reduce the friction between the guide connecting seat 43 and the sleeve base 42, thereby reducing the wear between the mating end faces of the two.

[0040] Specifically, the oil guiding structure includes an oil injection channel opened in the cylinder 422. The first end of the oil injection channel is located on the side wall of the cylinder 422 and an oil nozzle 423 is provided at the first end of the oil injection channel to connect with the external control oil circuit. The second end of the oil injection channel is connected to the oil groove 424. The supply control of lubricating oil is realized through the cooperation of the oil groove 424, the oil injection channel and the control oil circuit, so as to ensure the lubrication of the mating surface between the guide connecting seat 43 and the sleeve base 42 and reduce wear.

[0041] In this embodiment, the first end of the guide connecting seat 43 and / or the second end of the sleeve base 42 are provided with a mating structure to limit the radial offset range of the guide connecting seat 43 relative to the sleeve base 42, prevent the guide connecting seat 43 from slipping under force, and ensure the reliability of the device.

[0042] In this embodiment, the guide connecting seat 43 includes a sliding plate 431 for engaging with the second end face of the sleeve base 42 and a guide sleeve 432 disposed on the sliding plate 431. The guide sleeve 432 is provided with a water injection connector 433 for engaging with the water-expanding anchor rod 1. It should be understood that the guide sleeve 432 is provided with a mountain-shaped seal 434 for engaging with the water injection connector 433. In other embodiments, a common O-type seal may also be provided. Under the propulsion of the propulsion mechanism, the quick connecting device 4 moves toward the water-expanding anchor rod 1. The tail end of the water-expanding anchor rod 1 is gradually inserted into the guide sleeve 432 until the engagement is completed. The mountain-shaped seal 434 achieves a seal between the water-expanding anchor rod 1 and the guide sleeve 432. The water injection connector 433 is matched and connected with the water-expanding anchor rod 1 to perform high-pressure water injection in subsequent processes.

[0043] Specifically, the slide plate 431 and the guide sleeve 432 are set separately, which can be made of low-density, high-rigidity wear-resistant materials such as nylon, resin, and polytetrafluoroethylene, reducing the radial friction between the guide connecting seat 43 and the sleeve base 42, while reducing the overall weight of the guide connecting seat 43, thereby reducing the pulling force requirement of the tensioning component 45.

[0044] It should be noted that a first circular boss 4211 matching the inner diameter of the first end of the cylinder 422 is formed on the base plate 421 to facilitate the positioning and installation of the cylinder 422; the mating structure is a second circular boss 4311 formed on the slide plate 431. The outer diameter of the second circular boss 4311 is smaller than the inner diameter of the second end of the cylinder 422, which can limit the radial offset range of the guide connecting seat 43 and prevent the guide connecting seat 43 from slipping off; on the other hand, the corner bracket 44 of the base plate 421 is fixed to the surface edge of the first circular boss 4211 by screws, and the corner bracket 44 of the guide connecting seat 43 is fixed to the surface edge of the second circular boss 4311 by screws. The connecting end of the corner bracket 44 on the first circular boss 4211 is arranged facing the outer ring, and the corner bracket 44 on the second circular boss 4311 is arranged facing the center, ensuring that the tension member 45 is at a certain angle to the axial direction, so as to provide axial tension and radial traction force to drive the radially offset guide connecting seat 43 back to the center;

[0045] The screws used to fix the corner brackets 44 on the slide plate 431 are threaded to the guide sleeve 432 through the slide plate 431, thereby fixing the guide sleeve 432. In order to facilitate installation, the surface of the slide plate 431 is provided with a circular groove that matches the outer diameter of the end of the guide sleeve 432, so as to position the guide sleeve 432 for assembly.

[0046] On the other hand, this embodiment also provides an anchor bolt working arm, which uses the above-mentioned quick connection device 4. The anchor bolt working arm includes a propulsion mechanism, a propulsion beam 3 connected to the propulsion mechanism, an anchor bolt magazine 5 disposed on one side of the propulsion beam 3, and a gripper mechanism 2 installed on the propulsion beam 3; wherein, the propulsion mechanism is implemented with reference to the propulsion device 6 of the anchor bolt working arm in the prior art;

[0047] During operation, the propulsion beam 3 is adjusted to the target position. The gripper mechanism 2 grabs the water-expanding anchor rod 1 from the anchor rod magazine 5 and clamps it, rotating it to a position matching the propulsion mechanism. The propulsion mechanism advances, causing the quick connection device 4 to quickly connect with the water-expanding anchor rod 1. The clamping force of the gripper mechanism 2 is adjusted from heavy clamping to light clamping. The propulsion mechanism continues to advance, transmitting axial force through the quick connection device 4, causing the water-expanding anchor rod 1 to be inserted into the anchor rod hole on the rock wall. Water is injected into the water-expanding anchor rod 1 through the water injection connector 433 to pressurize it, causing the water-expanding anchor rod 1 to deform and anchor to the rock wall. The mountain-shaped seal 434 ensures that there is no water leakage or pressure drop at the connection position.

[0048] Among them, multiple gripper mechanisms 2 are evenly arranged along the axial direction of the propulsion beam 3. When the propulsion mechanism pushes the water-expanding anchor rod 1 through the quick connection device 4, the grippers release the water-expanding anchor rod 1 in sequence to avoid it, until the water-expanding anchor rod 1 is completely pushed into the anchor rod cavity on the rock wall.

[0049] This anchor bolt working arm, via the quick-connect device 4, enables rapid and automatic docking between the propulsion device 6 and the water-expanding anchor bolt 1. It passively compensates for radial deviation between the water-expanding anchor bolt 1 and the propulsion device 6, reduces wear caused by repeated insertion and removal of the guide sleeve 432's inner seal and the water-expanding anchor bolt 1, and ensures the stability of the water-expanding anchor bolt 1's anchoring operation. It also enables remote automatic installation of the water-expanding anchor bolt, avoiding manual work in hazardous areas, reducing labor intensity, and improving the efficiency of water-expanding anchor bolt installation. The device has a simple overall structure and a concise operating arm, achieving mechanized construction of the water-expanding anchor bolt 1, reducing labor costs and intensity, and increasing construction efficiency.

[0050] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A quick-connect device (4), characterized in that, The quick-connect device (4) for connecting the propulsion mechanism mounted on the anchor working arm to the water-expanding anchor (1) includes: A sleeve base (42) is used as a structural support, and its first end is used to connect with the propulsion mechanism; A guide connecting seat (43) is provided at the second end of the sleeve base (42). The first end face of the guide connecting seat (43) is slidably engaged with the second end face of the sleeve base (42). The second end of the guide connecting seat (43) has a guide structure for engaging with the water-expanding anchor rod (1). The tension member (45) is evenly distributed around the sleeve base (42) and at a preset angle to the axis of the sleeve base (42). It is used to connect the sleeve base (42) and the guide connecting seat (43) respectively so that the guide connecting seat (43) is axially positioned relative to the sleeve base (42) and is used to drive the guide connecting seat (43) that has generated radial displacement to reset. The sleeve base (42) includes a base plate (421), a connector (41) disposed on the first side of the base plate (421), and a cylinder (422) disposed on the second side of the base plate (421). The first ends of the base plate (421) and the guide connecting seat (43) are respectively provided with angle brackets (44) for connecting with the tension member (45). The guide connecting seat (43) includes a sliding plate (431) for cooperating with the second end face of the sleeve base (42) and a guide sleeve (432) disposed on the sliding plate (431). The guide sleeve (432) is provided with a water injection connector (433) for cooperating with the water-expanding anchor rod (1).

2. The quick connection device (4) according to claim 1, characterized in that, The cylinder (422) has an installation window that matches the distribution position of the tension member (45) for installing the tension member (45).

3. The quick-connect device (4) according to claim 1, characterized in that, The cylinder (422) has an oil groove (424) on the end face facing the guide connecting seat (43). The cylinder (422) is provided with an oil guiding structure that communicates with the oil groove (424) to guide lubricating oil between the guide connecting seat (43) and the cylinder (422).

4. The quick connection device (4) according to claim 3, characterized in that, The oil guiding structure includes an oil injection channel opened in the cylinder (422), the first end of the oil injection channel is located on the side wall of the cylinder (422) and an oil nozzle (423) is provided at the first end of the oil injection channel, and the second end of the oil injection channel is connected to the oil groove (424).

5. The quick-connect device (4) according to claim 1, characterized in that, The first end of the guide connector (43) and / or the second end of the sleeve base (42) are provided with a mating structure to limit the radial offset range of the guide connector (43) relative to the sleeve base (42).

6. The quick-connect device (4) according to any one of claims 1-5, characterized in that, The tension member (45) is a tension spring with traction hooks at both ends.

7. An anchor bolt working arm, characterized in that, The application has the quick connection device (4) as described in any one of claims 1-6.

8. The anchor bolt working arm according to claim 7, characterized in that, The anchor bolt working arm includes a propulsion mechanism, a propulsion beam (3) connected to the propulsion mechanism, an anchor bolt magazine (5) disposed on one side of the propulsion beam (3), and a gripper mechanism (2) installed on the propulsion beam (3).

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