Rod bracket and operating arm of anchor trolley with the rod bracket

Abstract

The present application discloses a rod bracket, including a support seat, a support arm, a clamping assembly and a driving device; the support arm is rotatably connected to the support seat, and can swing in a plane perpendicular to the rod, and has a first position and a second position; the clamping assembly includes two first clamping arms and a second clamping arm rotatably connected to the support arm, and the two clamping arms have an open state for releasing the rod and a closed state for limiting the movement of the rod; the driving device is used to drive the first clamping arm to rotate so that the two clamping arms are switched between the open state and the closed state. A driving device completes the state switching of the two clamping arms and the position change of the support arm, and provides support for the outer periphery of the drill rod compared to the traditional drill rod fixing mechanism, effectively reducing the interference of bending stress. When the drilling assembly slides close to the rod bracket, the support arm rotates and swings to the second device, exiting the drilling movement path of the drilling assembly, and the drilling operation of the drilling assembly is safer and the drilling depth is deeper.

Description

Technical Field

[0001] The present application relates to the technical field of tunnel construction, and in particular to a rod bracket and an operating arm of an anchor trolley having the rod bracket. Background Art

[0002] For drilling rigs or anchor rigs, when drilling long distances, the ratio of the axial to radial direction of the drill rod is large. Under the action of gravity, it is easy to form a large bending disturbance. If there is no response measure to avoid the occurrence of disturbance, when the drill rod or anchor rod is fed with a certain thrust, the force cannot be transmitted along the center direction of the rod, causing the bending to increase until it bends or breaks. Another reason is that when the anchor rod or drill rod rotates at high speed, the disturbance will gradually increase due to the influence of the centripetal force. If the disturbance cannot be effectively reduced, it will also cause bending or breaking during operation. Therefore, a bracket to support or clamp the rod will be added in the middle of the operating arm.

[0003] For example, a Chinese patent document with publication number CN 109184566 A discloses a trenchless drilling rig with a drill rod bracket structure, which includes a support frame at the front end of the frame (advance beam) and a bracket in the middle, so that during drilling operations, three points of support can be obtained to reduce the influence of disturbance, and the bracket can be extended and retracted along the forward direction of the drilling assembly. When approaching the limit position, it will extend and retract and approach the drilling assembly to make the drilling in place. However, the bracket only provides support force to offset gravity upwards. During drilling operations, the drill rod may be affected by centripetal forces in other directions and may detach from the bracket, resulting in a high risk of breakage. In addition, the telescopic bracket always occupies a certain space at the front end, and the depth of the anchor rod installation hole generated by the drilling operation is always less than the effective length of the drill rod, which is inefficient. Summary of the invention

[0004] The present application provides a rod bracket, which can fix the rod in multiple directions and facilitate the drilling operation of the drilling assembly.

[0005] A rod bracket, comprising:

[0006] Support seat;

[0007] A support arm, which is rotatably connected to the support seat and can swing in a plane perpendicular to the rod, and has a first position and a second position;

[0008] A clamping assembly, comprising a first clamping arm and a second clamping arm connected to the support arm, wherein the first clamping arm is rotatably connected to the support arm, and the two clamping arms have an open state for releasing the rod and a closed state for limiting the movement of the rod;

[0009] A driving device is used to drive the first clamping arm to rotate so that the two clamping arms are switched between an open state and a closed state.

[0010] Several optional methods are also provided below, but they are not intended to be additional limitations on the above-mentioned overall solution, but are merely further supplements or preferences. Under the premise that there are no technical or logical contradictions, each optional method can be combined with the above-mentioned overall solution separately, and multiple optional methods can also be combined.

[0011] Optionally, the second clamping arm is rotatably connected to the support arm, and a linkage device is provided between the first clamping arm and the second clamping arm.

[0012] Optionally, a locking mechanism is provided between the support seat and the support arm to prevent the support arm from swinging, and the locking mechanism is unlocked when the two clamping arms are in an open state.

[0013] Optionally, the locking mechanism includes a locking pin slidably disposed on the support arm and driven by a driving device, and a locking pin hole disposed on the support seat.

[0014] Optionally, the second clamp arm is rotatably connected to the support arm, a linkage device is provided between the first clamp arm and the second clamp arm, the linkage device is a gear set, and the locking pin is provided with a toothed plate meshing with one of the gears.

[0015] Optionally, when the two clamping arms are in the open state, the driving device continues to drive the supporting arm to swing from the first position to the second position.

[0016] Optionally, the driving device is a cylinder, and both ends of the cylinder are respectively connected to the support seat and the rotation.

[0017] Optionally, an elastic member is provided between the support arm and the support seat to cause the support arm to swing back from the first position to the second position.

[0018] The present application also provides an operating arm of an anchor trolley having the above-mentioned rod bracket, comprising:

[0019] a propulsion beam extending along a first direction;

[0020] A first slide plate is slidably mounted on the propulsion beam and can slide back and forth in a first direction;

[0021] A drilling assembly, comprising a drill rod, slidably mounted on the first slide plate, and capable of reciprocating along a second direction, having a first working position for drilling a rock wall and a first standby position; the second direction is perpendicular to the first direction;

[0022] The rod bracket is used to support the drill rod. When the first slide slides along the first direction and approaches the rod bracket, the two clamping arms switch from a closed state to an open state, and then the support arm swings from the first position to the second position.

[0023] Optionally, a linkage assembly with a clutch device is provided between the rod bracket and the drilling assembly, and can move along the second direction with the drilling assembly; when the drilling assembly slides along the first direction with the first slide plate, the clutch device is disengaged and the rod bracket remains stationary; when the drilling assembly slides along the second direction, the clutch device is engaged and the rod bracket slides synchronously.

[0024] The rod bracket of the present application is provided with a driving device to realize the switching of the two clamping arms between the open / closed state and the rotation and swing of the support arm, which can not only improve the multi-directional support force of the drill rod, but also can rotate to avoid the drilling operation of the drilling assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of a rod bracket in a closed state according to an embodiment of the present application;

[0026] Figure 2 for Figure 1 A top view of

[0027] Figure 3 This is a schematic structural diagram of an open state of a rod bracket according to an embodiment of the present application;

[0028] Figure 4 This is a structural schematic diagram of a rod bracket according to an embodiment of the present application when it is in the second position;

[0029] Figure 5 for Figure 1 Stereoscopic image of

[0030] Figure 6 for Figure 3 Stereoscopic image of

[0031] Figure 7 for Figure 4 Stereoscopic image of

[0032] Figure 8 for Figure 2 Sectional view at the middle BB;

[0033] Fig. 9 for Figure 8 A cross-sectional view of another state;

[0034] Fig.10 for Figure 8 A cross-sectional view of another state;

[0035] Fig.11 for Figure 2 Sectional view at AA in the middle;

[0036] Fig.12 for Fig.11 A cross-sectional view of another state;

[0037] Fig.13 for Fig.11 A cross-sectional view of another state;

[0038] Fig.14 A three-dimensional diagram of an operating arm of an anchor trolley according to an embodiment of the present application;

[0039] Fig.15 A three-dimensional diagram of the first slide plate in the operating arm of the anchor trolley of the present application when the drilling assembly is in the first working position;

[0040] Fig.16 A three-dimensional diagram of the first slide plate in the operating arm of the anchor trolley of the present application when the drilling assembly is in the first standby position;

[0041] Fig.17 A three-dimensional diagram of the structure of the synchronous displacement part of the rod support in the operating arm of the anchor trolley according to one embodiment of the present application;

[0042] Fig.18 A three-dimensional diagram of the structure of the synchronous displacement part of the rod support in the operating arm of the anchor trolley of another embodiment of the present application;

[0043] Fig.19 This is a structural cross-sectional view of the first rack in the operating arm of the anchor trolley of the present application;

[0044] Fig. 20 for Fig.19 Another state diagram of ;

[0045] Fig.21 This is a structural cross-sectional view of the second rack in the operating arm of the anchor trolley of the present application;

[0046] Fig. 22 for Fig.21 Another state diagram of ;

[0047] Fig.23 for Fig.17 An enlarged view of the clutch device in the middle C section in the disengaged state;

[0048] Fig.24 for Fig.23 A schematic diagram of the locking state of the locking device;

[0049] Fig.25 for Fig.23 Schematic diagram of the clutch device in the engaged state;

[0050] Fig.26 for Fig.25 A schematic diagram of the locking device in the unlocked state;

[0051] Fig. 27 for Fig.25 Schematic diagram from another perspective;

[0052] Fig.28 for Fig.23 Schematic diagram from another perspective;

[0053] Fig.29 for Fig.18 Enlarged view of the middle D part;

[0054] Fig.30 for Fig.29 Another state diagram of ;

[0055] Fig.31 for Fig.29 A cross-sectional view of a clutch device;

[0056] Fig.32 for Fig.30 A cross-sectional view of a clutch device;

[0057] Fig.33 for Fig.29 Schematic diagram of the lateral displacement of the first engaging member and the second engaging member.

[0058] The reference numerals in the figures are described as follows:

[0059] 1. Propulsion beam; 14. Fiber-supporting mechanism;

[0060] 21. first slide plate; 22. drilling assembly;

[0061] 3. Grouting assembly; 31. Grouting pipe;

[0062] 4. Rod bracket; 41. Support seat; 411. Lock pin hole; 412. Avoidance groove; 413. Guide block; 414. Elastic member;

[0063] 42. support arm; 421. tooth plate; 422. L-shaped plate;

[0064] 43. Clamping assembly; 431. First clamping arm; 432. Second clamping arm;

[0065] 44. Driving device;

[0066] 5. Linkage components;

[0067] 51. Clutch device; 511. First engaging member; 5111. Card slot;

[0068] 512, second engaging member; 5121, clamping block; 5122, annular boss;

[0069] 521, first rack; 522, second rack; 523, first ring gear; 524, second ring gear; 525, transmission rod;

[0070] 526, slide rail seat;

[0071] 53. Locking device; 531. Latch; 532. Elastic reset member; 533. Latch hole; 534. Trigger member;

[0072] 535, rotating pin; 536, first connecting plate; 537, second connecting plate; 538, plug block; 539, slot;

[0073] 540, side shift device;

[0074] 551, movable pin, 552, return spring;

[0075] 6. Drill rod. DETAILED DESCRIPTION

[0076] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0077] It should be noted that when a component is referred to as being "connected" to another component, it may be directly connected to the other component or there may be a central component. When a component is referred to as being "disposed on" another component, it may be directly disposed on the other component or there may be a central component at the same time.

[0078] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0079] In this application, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number or order of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0080] See also Figure 1~Figure 4The present invention provides a rod bracket 4, which is installed on a rock drilling trolley or an anchor trolley and is used to clamp the outer periphery of a drill rod 6 so that the drilling assembly 22 can reduce the disturbance of the drill rod 6 caused by gravity and bending stress generated during high-speed rotation during mobile drilling. The rod bracket 4 includes a support seat 41, a support arm 42, a clamping assembly 43 and a driving device 44.

[0081] The support seat 41 is a base, on which other components are mounted. The support arm 42 has a free end and a fixed end pivotally connected to the support seat 41. The free end can rotate and swing around the fixed end in a plane perpendicular to the rod, and has:

[0082] In the first position, the free end is adjacent to the drill rod 6 and is on the moving path of the drilling assembly 22 ; in the second position, during the entire rotation and swinging process, the free end is away from the drill rod 6 and exits the moving path of the drilling assembly 22 .

[0083] The clamping assembly 43 is used to clamp the rod. In this embodiment, the rod is a drill rod 6. The clamping assembly 43 includes two first clamping arms 431 and second clamping arms 432 connected to the free ends of the support arm 42, wherein the first clamping arm 431 is rotatably connected to the support arm 42, and the ends of the two clamping arms away from the support arm 42 are provided with mutually matching half grooves, and have:

[0084] In the open state, the first clamp arm 431 rotates away from the second clamp arm 432 to release the drill rod 6; in the closed state, the first clamp arm 431 rotates close to the second clamp arm 432 until it is completely in contact with the second clamp arm 432 and the corresponding half grooves enclose a hole that limits the circumferential movement of the drill rod 6, and the drill rod 6 is passed through the hole.

[0085] The driving device 44 is connected to and drives the first clamping arm 431 to rotate, away from / close to the second clamping arm 432, so that the two clamping arms switch between the open state and the closed state. In the open state, the driving device 44 continues the operation of opening the two support arms, and drives the support arm 42 to swing away from the support base 41 until it is in the second position. When the two clamping arms are in the closed state, the support arm 42 is in the first position.

[0086] The rod bracket 4 provided by the present invention is only provided with a driving device to complete the state switching of the two clamping arms and the position change of the support arm. Compared with the traditional drill rod fixing mechanism, it can provide support for the outer periphery of the middle part of the drill rod 6 and effectively reduce the interference of bending stress. When the drilling assembly 22 slides close to the rod bracket 4, the support arm 42 rotates and swings to the second position, exiting the movement path of the drilling operation of the drilling assembly 22. The drilling operation of the drilling assembly 22 is safer and will not hit the rod bracket 4. The drilling depth is equal to the effective length of the drill rod 6.

[0087] In one of the embodiments, a locking mechanism is provided between the support seat 41 and the support arm 42, and the locking mechanism is used to prevent the two clamping arms from being in the open state, keep the support arm 42 fixed in the first position, and prevent the support arm 42 from rotating and swinging to the second position, thereby ensuring the rotation and swinging operation sequence after the two clamping arms are fully opened and separated from the drill rod 6, thereby preventing any component of the rod bracket 4 from colliding with the drill rod 6 and affecting the drilling operation, so that the drilling assembly 22 can continue to work during the process of rotating to avoid the drilling assembly 22, thereby improving the operation efficiency.

[0088] In one embodiment, the locking mechanism includes a locking pin slidably disposed on the support arm 42 and driven by the driving device 44, and a locking pin hole 411 disposed on the support base 41. The locking pin is linked to one of the two clamping arms and has:

[0089] In the unlocking state, the two clamp arms rotate until they are in the open state, and the lock pin gradually exits the lock pin hole 411 synchronously until the two clamp arms are fully opened, and the lock pin completely exits the lock pin hole 411, and the driving device 44 continues the previous step operation, and the driving device drives the support arm 42 to rotate and swing to the second position, and at the same time the lock pin moves and is misaligned with the lock pin hole 411;

[0090] In the locked state, the driving device 44 operates in the opposite direction to the unlocked state, the support arm 42 rotates and swings to the first position, and at the same time the locking pin moves and communicates with the locking pin hole 411, the driving device 44 continues the previous operation, drives the locking pin to extend into the locking pin hole 411, and the two clamping arms rotate synchronously and approach each other to the closed state.

[0091] See also Figure 1 to Figure 7 In one embodiment, the second clamp arm 432 is rotatably connected to the support arm 42, and a linkage device is provided between the first clamp arm 431 and the second clamp arm 432, so that the state switching of the two clamp arms can be completed only by a driving device 44, and the structure is simple. Figure 8~Figure 13 The linkage device can be a mutually meshing gear set provided at the free end pivot of the two clamping arms 42, and the driving device is pivoted to the end of the first clamping arm 431 away from the support arm 42. The driving device moves to drive the first clamping arm 431 to rotate, and the gear set drives the second clamping arm 432 to rotate and move away from the first clamping arm 431, and finally the two are in an open state. In combination with this embodiment, refer to Figure 8~Figure 10The locking pin is a toothed plate 421 meshing with one of the gears in the gear set. An L-shaped plate 422 is bolted to the support arm 42 to guide the toothed plate to slide. When the toothed plate 421 is away from the locking pin hole 411, it will eventually abut against the L-shaped plate 422 to prevent it from slipping out of the support arm 42. A guide block 413 is provided at the locking pin hole 411 of the support seat 41. An arc surface is provided between the guide block 413 and the support seat 41 for the support arm 42 to rotate and guide. The guide block 413 is also provided with an avoidance groove 412 corresponding to the locking pin hole 411. The toothed plate 421 is always slidably inserted in the avoidance groove 412. The specific working principle is as follows:

[0092] like Figure 8 and Fig.11 As shown, the driving device 44 operates, and the gear set rotates until it is in the open state. During this process, the tooth plate 421 slides upward along the L-shaped plate 422 until it exits the lock pin hole 411 and finally abuts against the top of the L-shaped plate. The driving device continues the above operation, and the tooth plate 421 is driven by force to drive the guide block 413 to rotate relative to the support seat 41, and the L-shaped plate 422 is connected and fixed to the support arm 42, and the two swing synchronously until they are in the second position. When the guide block 413 and the support seat 41 abut each other, the support arm 42 is in the first position or the second position, which plays a role in limiting continued rotation, wherein, in the first position, the avoidance groove 412 is connected to the lock pin hole 411, and in the other positions, the avoidance groove 412 is misaligned with the lock pin hole 411, limiting the lock pin from extending into the lock pin hole 411, and ensuring the order of the clamp arm state switching and the position change of the support arm 42. Compared with some existing support rod mechanisms, at least two or more driving devices are required to realize the opening and closing and side swinging in the above-mentioned sequence, while this embodiment only needs one driving device to cooperate with a gear set to realize opening and closing and side swinging in a certain sequence, and the structure is simple.

[0093] In one embodiment, the driving device 44 is a cylinder, one end of which is pivotally connected to the support seat 41 at a position farther away from the clamping arm relative to the fixed end of the support arm 42, and the other end is pivotally connected to an end of the first clamping arm 431 farther away from the support arm 42. The telescopic stroke of the cylinder is shortened, the state switching of the two clamping arms and the position change speed of the support arm 42 are faster, and the risk of the drilling operation hitting the rod bracket 4 is reduced.

[0094] In one embodiment, an elastic member 414 is provided between the support arm 42 and the support seat 41 to accelerate the swinging of the support arm 42 from the first position to the second position. The elastic member 414 is a double-hook spring. When in the first position, it is in a stretched state, which accelerates the rotation and swinging of the support arm 42 to the second position, quickly withdraws from the moving path of the drilling assembly 22, and improves the safety of drilling.

[0095] like Figure 14~Figure 30As shown, the present application also provides an operating arm of an anchor trolley equipped with a rod bracket 4 of the above embodiment, including a propulsion beam 1, a first slide plate, a drilling assembly 22 and a rod bracket 4. The drilling assembly 22 is plugged and fixed with a drill rod 6 for drilling an anchor mounting hole on a rock wall, and the rod bracket 4 is used to provide support for the drill rod 6.

[0096] Among them, the propulsion beam 1 is a straight section profile, and its own length direction is the first direction. The propulsion beam 1 extends along the first direction and has a front end and a rear end. The front end is against the rock wall to achieve relative fixation between the operating arm and the rock wall, which is convenient for the drilling assembly 22 to drill holes.

[0097] The first slide plate 21 is used to support and fix the drilling assembly 22 and the grouting assembly 3, and is slidably mounted on the propulsion beam 1. A slide rail and a slideway that cooperate with each other are generally provided between the two, so that the first slide plate 21 can slide along the first direction.

[0098] The drilling assembly 22 is slidably mounted on the first slide plate 21, and the sliding direction is a second direction that is not the same as the first direction, and has:

[0099] The first working position, at which the drilling assembly 22 is at the rear end of the propulsion beam 1, and the axis of the drill rod is at the center line of the propulsion beam 1. In this position, the drilling assembly 22 can slide along the first direction to perform drilling operations on the rock wall;

[0100] In the first standby position, after the drilling component 22 has completed drilling, it has retreated to the rear end of the propulsion beam 1 along the first direction, and slides along the second direction, driving the drill rod 6 to shift synchronously, avoiding space for other components to work, and facilitating subsequent operations. In this embodiment, the other components are grouting components 3 for grouting operations, which can be connected to the anchor rod 7, slidably installed on the propulsion beam 1, and slide along the first direction.

[0101] The rod bracket 4 is fixedly connected to the propulsion beam 1 and is used to support the rod bracket 4 of the drill rod. The rod bracket 4 itself is provided with a rotating mechanism, which can rotate to leave space for the drilling assembly 22 to continue to slide along the first direction. Specifically: when the drilling assembly 22 slides close to the rod bracket 4, the rod bracket 4 disengages from the drill rod 6 and rotates to allow the drilling assembly 22 to continue to slide and complete the subsequent drilling operation.

[0102] A linkage assembly 5 with a clutch device 51 is provided between the rod bracket 4 and the drilling assembly 22 to achieve a fixed or sliding state of the rod bracket 4 relative to the propulsion beam 1 .

[0103] The rod bracket 4 can move synchronously with the drilling assembly 22 along the second direction, and the two have:

[0104] In the combined state, the drilling assembly 22 slides along the first direction with the first slide plate 21, the clutch device 51 is disengaged, the linkage assembly 5 does not work, and the rod bracket 4 is fixed relative to the propulsion beam 1;

[0105] In the separated state, the drilling assembly 22 slides in the second direction, the clutch device 51 is engaged, and the linkage assembly 5 works. Driven by the sliding of the drilling assembly 22, the rod bracket 4 slides synchronously. The drill rod 6 is not subjected to bending stress when in the first standby position. Compared with the traditional structure that relies on the deformation of the drill rod itself to achieve displacement, after the drilling assembly 22 repeatedly switches the position state, the drill rod is repeatedly subjected to bending stress and eventually breaks. The drill rod 6 in the operating arm of the present application always maintains the same axis as the drilling assembly 22, is not subjected to bending stress, and improves the safety of use.

[0106] In one embodiment, in the first working position, the front end of the advancing beam 1 is provided with a fiber support mechanism 14 for clamping the front end of the drill rod or anchor rod, the drilling assembly 22 is fixedly connected to the rear end of the drill rod 6, and the rod bracket 4 is generally arranged in the middle of the advancing beam 1 to support the middle of the drill rod. When the drill rod 6 is supported at three points, it is more convenient than the traditional structure in which only the front and rear ends support the drill rod, thereby avoiding the bending or even breaking of the longer drill rod 6 during drilling, thereby improving the safety of use.

[0107] In one embodiment, the clutch device 51 includes a first engaging member 511 and a second engaging member 512 that cooperate with each other. The first engaging member 511 is linked with the drilling assembly 22, and the second engaging member 512 is linked with one of the components in the linkage assembly 5, driving the rod bracket 4 to slide synchronously; when the drilling assembly 22 slides along the first direction with the first slide plate 21, the two engaging members are separated, and when the drilling assembly 22 slides along the second direction, the two engaging members are combined. Both engaging members are assembled from multiple plates, wherein the first engaging member 511 is fixedly connected to the rear portion 212 and slides synchronously with the drilling assembly 22. The second engaging member 512 is slidably fixed to the propulsion beam 1, and has:

[0108] In the movable state, the clutch device 51 is engaged, and the rod bracket 4 and the drilling assembly 22 can slide synchronously;

[0109] In the fixed state, the clutch device 51 is disengaged, the rod bracket 4 is fixed relative to the propulsion beam 1, and the rod bracket 4 is prevented from shifting when the drilling assembly 22 slides along the first direction, so that the drill rod 6 is always supported by at least two points and remains straight without being subjected to bending stress.

[0110] The specific separation operation is as follows: the first engaging member 511 fixedly connected to the drilling assembly 22 and the second engaging member 512 have two opposite sides, one of which is provided with a slot 5111 with an opening, and the other side is provided with a block 5121 that can enter the slot from the opening. When the drilling assembly 22 slides along the first direction with the first slide plate 21, the block 5121 is separated from the slot 5111 from the opening. The opening is oriented toward the rear end along the first direction and is U-shaped. The block 5121 is convexly arranged along the second direction and has an annular boss 5122 that limits itself from escaping from the slot 5111 along the second direction. When the combination is realized, the rod bracket 4 can reciprocate synchronously with the drilling assembly 22 along the second direction, and the drill rod is always kept free from bending stress.

[0111] In one embodiment, the linkage assembly 5 includes a first rack 521 and a second rack 522 respectively linked to the drilling assembly 22 and the rod bracket 4, and a transmission rod 525 fixed on the propulsion beam 1 and provided with a first gear ring 523 and a second gear ring 524 at both ends, the first gear ring 523 and the second gear ring 524 are respectively meshed with the first rack 521 and the second rack 522, and the second engaging member 512 is fixedly connected to the first rack 521. The side wall of the propulsion beam 1 is fixedly connected with a slide rail seat 526 extending along the second direction. The slide rail seat 526 is divided into two groups, which are respectively placed under the second engaging member 512 and the rod bracket 4. The above two racks are respectively slidably mounted on the two slide rail seats 526, and the two gear rings are respectively fixedly mounted on the corresponding lower part of the slide rail seat 526. The specific synchronous sliding method is:

[0112] The drilling assembly 22 slides in the second direction, driving the second engaging member 512 and the first rack 521 fixedly connected thereto to slide synchronously in the same direction, and the first gear ring 523 rotates, and the transmission rod 525 drives the second gear ring 524 to rotate synchronously in the same direction as the first gear ring 523, so that the second rack 522 slides synchronously in the same direction as the first rack 521. The whole process is completely synchronized, and the gear meshing accuracy is high, so as to ensure that the drill rod is never subjected to bending stress.

[0113] In one embodiment, the linkage assembly 5 includes a locking device 53, which is used to be in a locked state when the drilling assembly 22 slides along the first direction, preventing the rod bracket 4 from shifting due to high-frequency vibration, so that when the drilling assembly 22 is drilling, the rod bracket 4 is prevented from sliding and deviating due to vibration, which may cause the drill rod to break after being stressed in the middle. When the drilling assembly 22 slides along the second direction, the locking device 53 is released to achieve the function of synchronous sliding of the rod bracket 4 and the drilling assembly 22.

[0114] In one embodiment, the locking device 53 includes a latch 531 slidably mounted on the second engaging member 512, an elastic reset member 532 acting on the latch 531, and a latch hole 533 provided on the propulsion beam 1 and cooperating with the latch 531. When the drilling assembly 22 slides along the first direction, the two engaging members are separated, and the latch 531 is inserted into the latch hole 533. When the drilling assembly 22 slides along the second direction, the two engaging members are combined, and the latch 531 is withdrawn from the latch hole 533. A corresponding release member for driving the latch 531 to insert / withdraw from the latch hole 533 is generally provided between the two engaging members. The release member is driven by the change of the sliding direction of the drilling assembly 22, thereby changing the locking device 53 to switch between the locked state and the released state, so as to cooperate with the work of the drilling assembly 22 and the synchronous sliding function of the rod bracket 4.

[0115] In one embodiment, a triggering member 534 connected to the latch 531 via a lever mechanism is provided on the second engaging member 512, and the first engaging member 511 has an inclined surface that presses against the triggering member 534 to unlock the locking device 53. The lever structure includes a rotating pin 535 on the second engaging member 512, which serves as a fulcrum, a first connecting plate 536 connected and fixed to the triggering member 534, and a second connecting plate 537 connected to the latch 531. The first connecting plate 536 and the second connecting plate 537 are respectively the first force arm and the second force arm. Both connecting plates are pivotally fixed to the rotating pin 535 and rotate in the same direction around the rotating pin 535. The rotation of one connecting plate is driven by the other connecting plate, and the unlocking or releasing of the locking device is realized. Specifically:

[0116] After unlocking, the drilling assembly 22 slides toward the rear end along the first direction until the first engaging member 511 presses against the trigger member 534 and continues to slide until it stops. During this process, the first connecting plate 536 rotates counterclockwise under the drive of the trigger member 534, and the second connecting plate 537 rotates counterclockwise by the rotating pin 535, and the latch 531 fixed at the free end of the second connecting plate 537 moves vertically upward, and at the same time, the elastic reset member 532 is compressed. Finally, the latch 531 completely withdraws from the latch hole 533, and the unlocking is completed. The drilling assembly 22 can slide in the second direction at any time and drive the rod bracket 4 to slide synchronously.

[0117] The drilling assembly 22 is locked, and slides toward the front end along the first direction until the first engaging member 511 is separated from the trigger member 534. During this process, the elastic reset member 532 drives the latch 531 to move vertically downward and extend into the latch hole 533, causing the second connecting plate 537 to rotate clockwise around the rotating pin 535, and the rotating pin 535 drives the first connecting plate 536 to rotate clockwise until the latch 531 is fully inserted into the latch hole 533 and stops, thereby limiting the displacement of the rod bracket 4 when the drilling assembly 22 is drilling. The unlocking and releasing operations of the locking device 53 are linked to the position state switching of the drilling assembly 22, so that the rod bracket 4 can achieve synchronous sliding or relative fixation with the state switching of the drilling assembly 22, with high synchronization, and always ensure that the drilling rod is not affected by bending stress. Among them, the trigger member 534 is a cylinder, which contacts the inclined guide more smoothly, and the unlocking operation is smoother.

[0118] In another embodiment, if Fig.18 , Figure 29 to Figure 33 As shown, the clutch device 51 includes a first engaging member 511 and a second engaging member 512 that cooperate with each other. The first engaging member 511 is linked to the drilling assembly 22, and the second engaging member 512 is linked to one of the components in the linkage assembly 5. The second engaging member 512 has a slot 5111, and the first engaging member 511 has a block 5121 that cooperates with the slot 5111. The locking device 53 includes a movable pin 551 that is slidably mounted on the second engaging member 512 along the first direction, one end of the movable pin 511 is an unlocking end that abuts against the first engaging member 511 to trigger unlocking, and the other end is provided with a locking end of an insert block 538. Correspondingly, a slot 539 that cooperates with the insert block 538 is provided on the propulsion beam 1. A reset spring 552 that drives the movable pin 551 to reset is provided, and in this embodiment, the slot 529 is provided on the slide rail seat 526. The specific clutch locking method is:

[0119] To unlock, the first engaging member 511 moves backwards along the first direction to the first working position along with the drilling assembly 22, slides into the card slot 5111 by means of the card block 5121, and slides along the first direction against the movable pin 551 until the insert block 538 exits the slot 539, and the unlocking is completed. At the same time, the return spring 552 is compressed, and the drilling assembly 22 can slide in the second direction at any time and drive the second engaging member 512 to move sideways synchronously;

[0120] The first engaging member 511 moves forward along the first direction with the drilling assembly 22, so that the block 5121 exits the slot 5111, and the reset spring 552 drives the movable pin 551 to reset along the first direction. The insert block 538 is then inserted into the slot 539, so that the second engaging member 512 is relatively fixed to the slide rail seat 526, and the rod bracket 4 is fixed relative to the propulsion beam 1, ensuring the stability of the drilling operation. The matching structure of the clutch device 51 and the locking device 53 of this embodiment is simpler and more stable. In a preferred embodiment, Fig.33 As shown, a side shift device 540 that slides along the second direction is fixedly installed on the outer side of the second engaging member 512. The side shift device 540 is generally a hydraulic cylinder to assist the drilling assembly 22 to switch to the first standby position more quickly.

[0121] The rod bracket of this embodiment can provide support for one circle of the outer peripheral wall of the rod, eliminate the influence of gravity and centripetal force during high-speed rotation, and reduce disturbance interference. And only one driving device is used to realize the opening / closing state switching of the two clamping arms and the position switching of the support arm. Compared with the traditional multi-driving device driving mechanism, the drilling assembly can continue to work uninterruptedly, and the drilling depth is equal to the effective length of the drill rod, thereby improving work efficiency.

[0122] The operating arm of the anchor trolley of the present application is a rod bracket arranged in the middle of the propulsion beam, and a linkage assembly is arranged with the drilling assembly, which can slide synchronously with the drilling assembly, and the gears are engaged, so that the translation accuracy is high and the drill rod is always kept free from bending stress. The linkage assembly is also provided with a clutch device, so that when the drilling assembly moves forward in the first working position, the clutch device is separated and the corresponding locking device is locked, so that the rod bracket and the propulsion beam are kept fixed, so as to avoid the vibration caused by high-frequency drilling causing the rod bracket to shift, resulting in the drill rod being subjected to bending stress during drilling.

[0123] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. When the technical features in different embodiments are embodied in the same figure, it can be regarded that the figure also discloses the combination examples of the various embodiments involved.

[0124] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. A rod bracket, characterized in that: include: Support seat; A support arm, which is rotatably connected to the support seat and can swing in a plane perpendicular to the rod, and has a first position and a second position; A clamping assembly, comprising a first clamping arm and a second clamping arm connected to the support arm, wherein the first clamping arm and the second clamping arm are both rotatably connected to the support arm, and the two clamping arms have an open state for releasing the rod and a closed state for limiting the movement of the rod; A driving device, used for driving the first clamping arm to rotate so that the two clamping arms are switched between an open state and a closed state; A locking mechanism, arranged between the support seat and the support arm, for preventing the support arm from swinging, the locking mechanism being unlocked when the two clamping arms are in an open state, the locking mechanism comprising a locking pin slidably arranged on the support arm and driven by a driving device, and a locking pin hole arranged on the support seat; A linkage device is arranged between the first clamp arm and the second clamp arm, and the linkage device is a gear set. The locking pin is provided with a tooth plate meshing with one of the gears, and the support arm is provided with an L-shaped plate for guiding the sliding of the tooth plate. When the tooth plate is away from the locking pin hole, it abuts against the L-shaped plate to limit its escape from the support arm. A guide block is arranged at the locking pin hole of the support seat, and an arc surface for guiding the rotation of the support arm is arranged between the guide block and the support seat. The guide block is also provided with an avoidance groove corresponding to the locking pin hole, and the tooth plate is slidably inserted in the avoidance groove.

2. The rod bracket according to claim 1, characterized in that: The second clamping arm is rotatably connected to the supporting arm, and a linkage device is arranged between the first clamping arm and the second clamping arm.

3. The rod bracket according to claim 2, characterized in that: When the two clamping arms are in the open state, the driving device continues to drive the supporting arm to swing from the first position to the second position.

4. The rod bracket according to claim 3, characterized in that: The driving device is an oil cylinder, and two ends of the oil cylinder are rotatably connected to the support seat and the first clamping arm respectively.

5. The rod bracket according to claim 3, characterized in that: An elastic member is arranged between the support arm and the support seat to force the support arm to swing back from the first position to the second position.

6. The operating arm of the anchor trolley is characterized by: include: a propulsion beam extending along a first direction; A first slide plate is slidably mounted on the propulsion beam and can slide back and forth in a first direction; A drilling assembly, comprising a drill rod, slidably mounted on the first slide plate, and capable of reciprocating along a second direction, having a first working position for drilling a rock wall and a first standby position; the second direction is perpendicular to the first direction; The rod bracket as described in any one of claims 1-5 is used to support the drill rod, when the first slide slides along the first direction close to the rod bracket, the two clamping arms switch from a closed state to an open state, and then the support arm swings from the first position to the second position.

7. The operating arm of the anchor trolley according to claim 6, characterized in that: A linkage assembly with a clutch device is provided between the rod bracket and the drilling assembly, and can move along the second direction with the drilling assembly; when the drilling assembly slides along the first direction with the first slide plate, the clutch device is disengaged and the rod bracket remains stationary; when the drilling assembly slides along the second direction, the clutch device is engaged and the rod bracket slides synchronously.

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