Anchor rod installation device of anchor rod trolley

Abstract

The invention relates to an anchor rod installation device of an anchor rod trolley. The anchor rod installation device specifically comprises a bit shank, a connector, a conical sliding rod, a sliding mechanism, a clamping mechanism, a positioning pin and a limiting block. Wherein the tail of the connector is connected with a bit shank, and the end of the connector is of an inner hexagonal structure and matched with a resin anchor rod nut; the right end part of the conical sliding rod extends into the inner wall of the pipe seam anchor rod to play a guiding role; the sliding mechanism drives the clamping mechanism to realize horizontal linear motion; the clamping mechanism can clamp and fix a baffle ring of the pipe seam anchor rod; the limiting block is used for axially limiting the sliding mechanism; the conical sliding rod is in clearance fit with the connector, the conical sliding rod can axially slide in the connector, two hole positions of the connector and the conical sliding rod are axially fixed through the positioning pin, and conversion of installation of the pipe seam anchor rod and the resin anchor rod is achieved through the device. Installation of the pipe seam anchor rod and the resin anchor rod can be achieved, the anchor rod installation device does not need to be replaced additionally, therefore, the anchor rod installation work efficiency is improved, and meanwhile the stability in the anchor rod embedding process can be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of anchor rod trolleys, and in particular relates to an anchor rod installation device of an anchor rod trolley. Background Art

[0002] The anchor trolley is a self-moving device that drills anchor holes on the roof or side of the underground tunnel and completes part or all of the anchor installation process. Anchors are the most basic component of tunnel support in contemporary mines. The purpose is to reinforce the surrounding rock of the tunnel so that the surrounding rock supports itself. The most widely used anchors in mine tunnels are pipe seam anchors and resin anchors. The current anchor installation device can only realize the installation of a single type of anchor. Different anchor installation devices need to be replaced to install different anchors. The troublesome loading and unloading affects the work efficiency and the tightness of the shank connection. At the same time, the current simple anchor installation tools cannot guarantee the stability of the anchor during the advancement and inlaying process.

[0003] In order to solve the above problems, it is necessary to design an anchor rod installation device to solve the problems of low efficiency of a single anchor rod installation device and difficulty in ensuring the stability of anchor rod installation, thereby improving the efficiency of anchor rod installation and enhancing the stability of the anchor rod during advancement and embedding.

[0004] Chinese utility model patent CN217712623U discloses a pipe seam anchor installation tool, including a rotating outer sleeve, and a conical head is fixedly assembled on the surface of the rotating outer sleeve. The utility model improves the stability of the pipe seam anchor during the advancement and embedding process through the cooperation of the rotating outer sleeve and the conical head, as well as the guiding effect of the conical head. However, the utility model can only achieve the installation of the pipe seam anchor. The present invention can achieve the functional switching of installing pipe seam anchors or resin anchors, and has a wider applicability; the whole set of devices described in the present invention is more complete, and is equipped with a clamping mechanism to clamp and fix the retaining ring of the pipe seam anchor, and has better stability and functionality.

[0005] Chinese invention patent CN101672191B discloses a method for mechanized installation of resin anchor rods, which uses a tubular resin anchor rod installation connector made of metal material, one end of which is an internal hexagonal structure that matches the size of the anchor rod nut, and the other end is an internal threaded structure that matches the anchor rod trolley drill tail thread. The invention mainly achieves the installation of the resin anchor rod by matching the internal hexagonal structure of the installation connector with the anchor rod nut, the trolley propulsion beam propels the anchor rod, and the rock drill drives the connector to rotate, thereby driving the nut to rotate and pressing the anchor rod tray to the rock wall. However, the invention can only achieve the installation of resin anchor rods. The present invention can realize the switching of the installation function of pipe seam anchor rods or resin anchor rods, and has a wider applicability; the whole set of devices described in the present invention is more efficient, and has better stability and functionality. Summary of the invention

[0006] In order to solve the existing problems, the team of Changsha University of Science and Technology and the team of Hunan Wuxin Tunnel Intelligent Equipment Co., Ltd. cooperated to propose an anchor rod installation device for an anchor rod trolley, which is used to solve the problems that different types of anchor rods require different installation devices and the stability of the anchor rod installation process is low. The axial fixation of the connector and the tapered slide rod at two different hole positions by the locating pin can achieve the purpose of converting the installation of pipe seam anchor rods and resin anchor rods. The clamping mechanism clamps the pipe seam anchor rod retaining ring, and the inner hole of the tapered rod limits the resin anchor rod, so as to achieve the purpose of improving the stability of the anchor rod installation process. The device has been used in Hunan Wuxin Tunnel Intelligent Equipment Co., Ltd.

[0007] The present invention describes in detail an anchor rod installation device of an anchor rod trolley.

[0008] In order to achieve the above-mentioned purpose, the present invention provides an anchor rod installation device for an anchor rod trolley, which includes a shank, a connector, a tapered slide rod, a sliding mechanism, a clamping mechanism, a positioning pin, and a limit block; the shank and the connector are connected by threads, the tapered slide rod is installed in the connector, the sliding mechanism is installed on the connector, the clamping mechanism is installed on the sliding mechanism, and the limit block is fixed to the connector by screws; the sliding mechanism can drive the clamping mechanism to slide linearly along the dovetail groove of the connector; the limit block can prevent the sliding mechanism from sliding out of the dovetail groove; the positioning pin can realize the switching of the device's installation functions of resin anchor rods and pipe seam anchor rods by axially fixing the two different hole positions of the connector and the tapered slide rod.

[0009] The tail end of the connector is an internal thread structure that matches the shank thread. A slide groove is processed on the inner wall of the connector to achieve circumferential positioning of the tapered slide rod. There are two slide grooves, and the two slide grooves are symmetrically distributed on the inner wall of the connector; the inner wall of the front end of the connector is an internal hexagonal structure that matches the resin anchor nut; the outer wall of the front end of the connector is processed with a platform, and a dovetail slide groove is processed at the center of the platform. The sliding mechanism can slide linearly in the dovetail slide groove, and the dovetail slide groove can achieve radial positioning of the sliding mechanism; a pin hole that matches the locating pin is provided in the middle of the connector, and there are two pin holes; a radially arranged limit bolt is installed on the outer wall of the connector, and the limit bolt matches the connector thread and passes through one side of the connector; the limit bolt limits the axial position of the tapered slide rod, which is beneficial for the positioning of the tapered slide rod by the locating pin.

[0010] The conical sliding rod comprises a conical rod and a guide flat key; a through hole is processed on the inner wall of the conical rod, and the resin anchor rod body can extend into the conical rod to improve the stability of the anchor rod during the embedding process; a pin hole matching the positioning pin is arranged in the middle of the conical rod; the guide flat key is fixed to the conical rod by bolts; the conical sliding rod is matched with the connector clearance and slides axially in the slide groove through the guide flat key.

[0011] The sliding mechanism comprises a sliding table, a hinge seat and a spring; the sliding table is installed in a dovetail sliding groove, the hinge seat is welded on the sliding table, one end of the spring is fixed on the connector, and the other end is fixed on the sliding table.

[0012] The clamping mechanism includes a clamping jaw, a compression spring, and an adjusting bolt; the clamping jaw is hingedly mounted on a hinge seat, one end of the compression spring is fixed on a slide, and the other end is fixed on the clamping jaw, and the adjusting bolt cooperates with the clamping jaw thread and passes through the clamping jaw; an arc groove matching the size of the pipe seam anchor retaining ring is processed on the end of the clamping jaw, which is used to clamp and fix the retaining ring, thereby improving the stability of the pipe seam anchor during the advancement and insertion process; the compression spring is in a compressed state, which can realize the up and down swing of the clamping jaw; the adjusting bolt is tightened downward to contact the slide plane, which can adjust the clamping amplitude of the clamping jaw to prevent the compression spring tension from being too large, which makes the clamping amplitude of the clamping jaw too small, thereby causing interference between the pipe seam anchor retaining ring and the clamping jaw.

[0013] The connector and the tapered slide rod are axially fixed by a locating pin; when the locating pin passes through the pin hole at the front end of the connector for axial fixation, the right end of the tapered slide rod is exposed outside the right end of the connector, and the device is in the working state for installing the pipe seam anchor rod; when the locating pin passes through the pin hole at the rear of the connector for axial fixation, the tapered slide rod extends into the interior of the connector, leaving working space for the hexagonal structure at the front end of the connector, and the device is in the working state for installing the resin anchor rod.

[0014] The sliding mechanism, the clamping mechanism and the limit block are provided in 2 to 4 groups, and the number of the three is the same. They are symmetrically arranged along the outer wall of the connector and the phases correspond one to one.

[0015] Compared with the prior art, the above-mentioned anchor trolley anchor installation device has the following beneficial effects.

[0016] ① Strong functionality. By fixing the two different hole positions of the connector and the tapered slide rod with the positioning pin, the purpose of switching between the pipe seam anchor rod and the resin anchor rod can be achieved, without the need to replace different installation devices due to different types of anchor rods.

[0017] ②Good stability. The clamping mechanism can clamp the retaining ring of the pipe seam anchor to prevent the pipe seam anchor from loosening during the embedding process. The radial limit of the resin anchor by the inner hole of the tapered rod can also effectively reduce the vibration amplitude of the resin anchor during the embedding process.

[0018] ③Good applicability. The adjusting bolt of the clamping mechanism can adjust the clamping angle of the clamping jaws and can adapt to pipe seam anchors of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 yes Figure 1Schematic diagram of the connector structure in FIG.

[0021] Figure 3 yes Figure 1 Schematic diagram of the tapered slider structure in FIG.

[0022] Figure 4 yes Figure 1 Schematic diagram of the sliding mechanism structure;

[0023] Figure 5 yes Figure 1 Schematic diagram of the clamping mechanism structure;

[0024] Figure 6 This is a schematic diagram of the working state of the pipe seam anchor rod of the present invention;

[0025] Figure 7 It is a schematic diagram of the working state of the resin anchor rod of the present invention.

[0026] above Figures 1 to 7 The markings are: 1. shank; 2. connector, 2-1. slide, 2-2. limit bolt, 2-3. slide, 2-4. dovetail slide; 3. tapered slide rod, 3-1. tapered rod, 3-2. guide flat key; 4. sliding mechanism, 4-1. slider, 4-2. seat, 4-3. spring; 5. clamping mechanism, 5-1. clamping claw, 5-2. compression spring, 5-3 adjusting bolt; 6. positioning pin; 7. limit block. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0028] The present invention discloses an anchor rod installation device for an anchor rod trolley, which is composed of a drill tail 1, a connector 2, a tapered slide rod 3, a sliding mechanism 4, a clamping mechanism 5, a positioning pin 6, and a limit block 7. The connector 2 includes: a slide groove 2-1, a limit bolt 2-2, a platform 2-3, and a dovetail slide groove 2-4. The tapered slide rod 3 includes: a tapered rod 3-1, a guide flat key 3-2. The sliding mechanism 4 includes: a slide table 4-1, a hinge seat 4-2, and a spring 4-3. The clamping mechanism 5 includes: a clamping claw 5-1, a compression spring 5-2, and an adjusting bolt 5-3.

[0029] In this embodiment, preferably, the tail end of the connector 2 is an internal thread structure that matches the thread of the drill tail 1. The rock drill drives the connector 2 to rotate through the drill tail 1. The inner wall of the front end of the connector 2 is an internal hexagonal structure that cooperates with the hexagonal nut of the resin anchor rod, which can drive the rotation of the resin anchor rod nut to tighten the pressure plate.

[0030] In this embodiment, preferably, the tapered slide bar 3 is clearance-matched with the connector 2, and axial sliding is achieved in the slide groove 2-1 through the guide flat key 3-2. The right end of the tapered slide bar 3 extends into the interior of the pipe seam anchor to play a guiding role.

[0031] In this embodiment, preferably, the sliding mechanism 4 is installed on the connector 2, and the clamping mechanism 5 is installed on the sliding mechanism 4, and the compression and rebound of the spring 4-3 can drive the clamping mechanism 5 to slide in the dovetail groove 2-4.

[0032] In this embodiment, preferably, the end of the clamping jaw 5-1 is processed with an arc groove matching the size of the pipe seam anchor retaining ring, which is used to clamp and fix the retaining ring. The compression spring 5-2 is in a compressed state, and the clamping jaw 5-1 can be swung up and down by tightening and relaxing the compression spring 5-2. The adjusting bolt 5-3 is tightened downward to contact the slide 4-1 plane, and the clamping amplitude of the clamping jaw 5-1 can be adjusted to prevent the tension of the compression spring 5-2 from being too large, which makes the clamping amplitude of the clamping jaw 5-1 too small, resulting in interference between the pipe seam anchor retaining ring and the clamping jaw 5-1, thereby making it impossible to install the anchor.

[0033] In this embodiment, preferably, the connector 2 and the tapered slide bar 3 are axially fixed by the positioning pin 6. When the positioning pin 6 passes through the pin hole at the front end of the connector 2 to fix the connector 2 and the tapered slide bar 3, the right end of the tapered slide bar 3 is exposed outside the right end of the connector 2, and the device is in the working state of installing the pipe seam anchor. The main part of the pipe seam anchor is a longitudinally slit steel pipe, and the right end of the tapered slide bar 3 extends into the interior of the pipe seam anchor to play a guiding role. The clamping claw 5-1 of the clamping mechanism 5 clamps and fixes the retaining ring of the pipe seam anchor, which can improve the stability of the anchor during the advancement process. In the process of the anchor trolley advancing the beam to drive the anchor to be embedded, when the pressure plate of the pipe seam anchor is close to the surrounding rock, the advancement beam continues to advance, and the thrust provided compresses the spring 4-3 of the sliding mechanism 4, thereby driving the sliding of the clamping mechanism 5. The clamping claw 5-1 of the clamping mechanism 5 is milled with an inclined surface. During the advancement process, the clamping claw 5-1 is opened at a certain angle by the thrust to loosen the retaining ring, so that the retaining ring is not interfered and can press the pressure plate, thereby realizing the installation of the pipe seam anchor. When the positioning pin 6 passes through the pin hole at the rear of the connector 2 for axial fixation, the tapered slide bar 3 extends into the connector 2, leaving a working space for the hexagonal structure at the front end of the connector 2. At this time, the device is in the working state for installing the resin anchor. The main body of the resin anchor is composed of a threaded metal rod and a hexagonal nut. The nut of the resin anchor cooperates with the hexagonal structure at the front end of the connector 2. The connector 2 and the anchor are rotated by the rock drill, and the tail end of the anchor is extended into the inner hole of the tapered slide bar 3, which can reduce the radial vibration during the anchor inlay process and improve stability. During the process of anchor inlay driven by the anchor trolley propulsion beam, when the pressure plate of the resin anchor is close to the surrounding rock, the propulsion beam continues to advance. The propulsion of the anchor trolley propulsion beam and the rotation of the nut driven by the rock drill through the connector 2 tighten the pressure plate to achieve the installation of the resin anchor.

[0034] The contents explained in the above embodiments should be understood as these embodiments are only used to more clearly illustrate the present invention, and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art all fall within the scope defined by the claims attached to the present invention.

Claims

1. An anchor trolley anchor installation device, characterized in that: The device comprises a shank (1), a connector (2), a tapered slide bar (3), a sliding mechanism (4), a clamping mechanism (5), a positioning pin (6), and a limit block (7); the shank (1) and the connector (2) are connected by threads, the tapered slide bar (3) is installed in the connector (2), the sliding mechanism (4) is installed on the connector (2), the clamping mechanism (5) is installed on the sliding mechanism (4), and the limit block (7) is fixed on the connector (2) by screws; the sliding mechanism (4) can drive the clamping mechanism (5) to slide linearly along the dovetail slide groove (2-4) of the connector (2); the limit block (7) can prevent the sliding mechanism (4) from sliding out of the dovetail slide groove (2-4); the positioning pin (6) can realize the switching of the device installation function between the resin anchor rod and the pipe seam anchor rod by axially fixing the connector (2) and the tapered slide bar (3) at two different hole positions.

2. The anchor bolt installation device of the anchor bolt trolley according to claim 1, characterized in that: The rear end of the connector (2) is an internal thread structure that matches the thread of the shank (1); a slide groove (2-1) is processed on the inner wall of the connector (2) to achieve circumferential positioning of the tapered slide rod (3); the number of the slide grooves (2-1) is two, and the two slide grooves (2-1) are symmetrically distributed on the inner wall of the connector (2); the inner wall of the front end of the connector (2) is an internal hexagonal structure that matches the resin anchor nut; the outer wall of the front end of the connector (2) is processed with a platform (2-3), and the center of the platform (2-3) is processed with a dovetail slide groove (2-4), and the sliding mechanism (4) The connector (2) can slide linearly in the dovetail groove (2-4), and the dovetail groove (2-4) can realize radial positioning of the sliding mechanism (4); a pin hole matched with the positioning pin (6) is arranged in the middle of the connector (2), and the number of the pin holes is two; a radially arranged limiting bolt (2-2) is arranged on the outer wall of the connector (2), and the limiting bolt (2-2) is threadedly matched with the connector (2) and passes through one side of the connector (2); the limiting bolt (2-2) limits the axial position of the tapered slide rod (3), which is beneficial to the positioning pin (6) for positioning the tapered slide rod (3).

3. The anchor rod installation device of the anchor rod trolley according to claim 1, characterized in that: The conical slide rod (3) comprises a conical rod (3-1) and a guide flat key (3-2); a through hole is processed on the inner wall of the conical rod (3-1), and the resin anchor rod body can extend into the conical rod (3-1) to improve the stability of the anchor rod during embedding; a pin hole matching with a positioning pin (6) is arranged in the middle of the conical rod (3-1); the guide flat key (3-2) is fixed to the conical rod (3-1) by bolts; the conical slide rod (3) is clearance-matched with the connector (2), and slides axially in the slide groove (2-1) through the guide flat key (3-2).

4. The anchor bolt installation device of an anchor bolt trolley according to claim 1, characterized in that: The sliding mechanism (4) comprises a slide (4-1), a hinge seat (4-2), and a spring (4-3); the slide (4-1) is installed in the dovetail slide groove (2-4), the hinge seat (4-2) is welded to the slide (4-1), and one end of the spring (4-3) is fixed to the connector (2), and the other end is fixed to the slide (4-1).

5. The anchor bolt installation device of an anchor bolt trolley according to claim 1, characterized in that: The clamping mechanism (5) comprises a clamping jaw (5-1), a compression spring (5-2), and an adjusting bolt (5-3); the clamping jaw (5-1) is hingedly mounted on a hinge seat (4-2); one end of the compression spring (5-2) is fixed on a slide table (4-1), and the other end is fixed on the clamping jaw (5-1); the adjusting bolt (5-3) is threadedly matched with the clamping jaw (5-1) and passes through the clamping jaw (5-1); the end of the clamping jaw (5-1) is processed with a thread matching the size of the pipe seam anchor retaining ring The arc groove is used to clamp and fix the retaining ring, which can improve the stability of the pipe seam anchor rod during the advancement and embedding process; the compression spring (5-2) is in a compressed state, which can realize the up and down swing of the clamping jaw (5-1); the adjusting bolt (5-3) is tightened downward to contact the sliding table (4-1) plane, and the clamping amplitude of the clamping jaw (5-1) can be adjusted to prevent the tension of the compression spring (5-2) from being too large, which makes the clamping amplitude of the clamping jaw (5-1) too small, resulting in interference between the pipe seam anchor rod retaining ring and the clamping jaw (5-1).

6. The anchor bolt installation device of an anchor bolt trolley according to claim 1, characterized in that: The connector (2) and the tapered slide bar (3) are axially fixed by a positioning pin (6); when the positioning pin (6) passes through the pin hole at the front end of the connector (2) for axial fixing, the right end of the tapered slide bar (3) is exposed outside the right end of the connector (2), and the device is in a working state for installing a pipe seam anchor rod; when the positioning pin (6) passes through the pin hole at the rear end of the connector (2) for axial fixing, the tapered slide bar (3) extends into the interior of the connector (2), leaving a working space for the hexagonal structure at the front end of the connector (2), and the device is in a working state for installing a resin anchor rod.

7. The anchor bolt installation device of an anchor bolt trolley according to claim 1, characterized in that: The sliding mechanism (4), the clamping mechanism (5), and the limit block (7) are in 2 to 4 groups, and the number of the three is the same. They are symmetrically arranged along the outer wall of the connector (2) and have one-to-one phase correspondence.

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