Operating arm of anchor trolley with anti-jamming function

Abstract

The present application discloses an operating arm of an anchor trolley, comprising a propulsion beam, a first slide plate, a drilling assembly and a grouting assembly; the propulsion beam extends in a first direction; the first slide plate is movably mounted on the propulsion beam and can slide back and forth in the first direction; the first slide plate is divided into a front part and a rear part along the first direction, and the front part and the rear part have a combined state that can slide synchronously and a separated state that can slide individually; the drilling assembly is slidably mounted on the rear part of the first slide plate and can slide back and forth in the second direction, and has a first working position for preparing to drill a hole in a rock wall and a first standby position for avoiding a grouting pipe; the grouting assembly is mounted on the front part of the first slide plate and works alternately with the drilling assembly, and comprises a grouting pipe that moves relative to the first slide plate; the grouting pipe has a second working position for preparing to inject grout into a borehole and a second standby position for avoiding the drilling assembly. The drilling assembly and the grouting assembly are arranged front and back, and can slide individually on a complete flat plate, so that the sliding is smoother.

Description

Technical Field

[0001] The present application relates to the technical field of tunnel construction, and in particular to an operating arm of an anchor trolley with an anti-jamming function. Background Art

[0002] The anchor trolley is an integrated movable carrier equipment used for anchor grouting support. In order to improve the modern operation level and operation efficiency, the existing anchor trolleys are generally equipped with a working arm (operating arm) and a manual maintenance platform. The working arm is integrated with a rock drill for drilling and a grouting component for grouting, replacing the previous manual operation.

[0003] For example, a Chinese patent document with publication number CN 110410120 A discloses a quick switching platform, in which a first fixed plate, a second fixed plate and a sliding plate (third fixed plate) are arranged in parallel in a vertical direction of the propulsion beam to form a sliding base, and two loading plates for loading a rock drill and an anchor installation device respectively are arranged in parallel and sliding on the sliding base. In addition to the above-mentioned problem of affecting the overall center of gravity offset after lateral displacement, since the rock drill is a high-frequency vibration device, it is very easy to cause misalignment and offset between the three fixed plates during use, making the loading plates slide unsmoothly or even stuck directly, resulting in the inability to slide. This is a structural design problem that is difficult to eradicate and easy to recur, seriously affecting the construction progress. Summary of the invention

[0004] The present application provides an operating arm of an anchor trolley, which makes the switching of a sliding mounted drilling assembly and a grouting assembly smoother.

[0005] The operating arm of the anchor trolley includes:

[0006] a propulsion beam extending along a first direction;

[0007] A first slide plate is slidably mounted on the propulsion beam and can slide back and forth along a first direction. The first slide plate is divided into a front portion and a rear portion along the first direction. The front portion and the rear portion have a combined state in which they can slide synchronously and a separated state in which they can slide independently.

[0008] A drilling assembly, comprising a drill rod, slidably mounted on the rear of the first slide plate, capable of reciprocating in a second direction, and having a first working position for preparing to drill a hole in a rock wall and a first standby position for avoiding a grouting assembly;

[0009] A grouting assembly is mounted on the front of the first slide plate, and includes a grouting pipe that moves relative to the first slide plate; the grouting pipe has a second working position for preparing to inject grout into the borehole and a second standby position that avoids the drilling assembly;

[0010] The grouting pipe and the drilling assembly are alternately in their respective working positions. When the drilling assembly is in the first working position, the front and rear parts of the first slide plate are combined, and when the grouting pipe is in the second working position, the front and rear parts of the first slide plate are separated.

[0011] 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.

[0012] Optionally, the first direction and the second direction are perpendicular to each other.

[0013] Optionally, a driving mechanism for driving the front portion of the first slide plate to slide along a first direction is disposed on the propulsion beam, and the driving mechanism includes a first chain arranged along the first direction, and the front portion of the first slide plate is fixedly connected to a part of the first chain.

[0014] Optionally, the grouting assembly includes a lifting frame for moving the grouting pipe so that it can be switched between a second working position and a second standby position.

[0015] Optionally, the lifting frame includes a first support rod and a second support rod hinged to the front of the first slide plate, and the grouting pipe is also hinged to the first support rod and the second support rod. The front of the first slide plate, the first support rod, the second support rod and the grouting pipe constitute a foldable four-bar linkage.

[0016] Optionally, when the lifting frame is moving the grouting pipe, the first support rod and the second support rod rotate in the same direction and always keep the grouting pipe extending along the first direction.

[0017] Optionally, one of the front portion and the rear portion of the first slide plate is provided with a combining rod extending along the second direction, and the other is provided with a combining hole matched with the combining rod.

[0018] Optionally, the grouting assembly includes a fixed seat rotatably cooperated with the grouting pipe and a power device installed on the fixed seat to drive the grouting pipe to rotate, the grouting pipe has a feed inlet and a discharge port, and a nut sleeve is provided at the discharge port for rotating the anchor nut to lock the anchor.

[0019] Optionally, the discharge port of the grouting pipe is provided with an anti-collision nozzle which protrudes axially from the end thereof and can slide relatively, and the outer sleeve of the grouting pipe is provided with a buffer spring acting on the anti-collision nozzle.

[0020] Optionally, the anti-collision nozzle comprises a conical cylinder portion and a straight cylinder portion sleeved with the grouting pipe, and the nut sleeve has a limiting protrusion which radially protrudes from the outer wall of the grouting pipe to limit the detachment of the anti-collision nozzle.

[0021] The operating arm of the anchor trolley of the present application, the drilling assembly and the grouting assembly are arranged front and back along the first direction, and a separate sliding assembly can be provided for the drilling assembly to slide along the second direction to avoid the grouting assembly. Compared with the traditional structure in which the drilling assembly and the grouting assembly are arranged in parallel in the second direction and switch with each other, it is smoother and there is no jamming phenomenon. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional diagram of an operating arm of an anchor trolley according to an embodiment of the present application;

[0023] Figure 2 A schematic diagram of the structure of the anchor rod used in the operating arm of the anchor rod trolley of the present application;

[0024] Figure 3 This is a partial exploded view of the drilling assembly in the operating arm of the anchor trolley of this application;

[0025] Figure 4 A three-dimensional view of the first slide plate when the front and rear parts of the operating arm of the anchor trolley of the present application are connected to each other and the drilling assembly is in the first working position;

[0026] Figure 5 A three-dimensional view of the first slide plate when the front and rear parts of the operating arm of the anchor trolley of the present application are separated and the drilling assembly is in the first standby position;

[0027] Figure 6 This is a schematic diagram of the grouting assembly in the operating arm of the anchor trolley of the present application being in the second working position;

[0028] Figure 7 This is a schematic diagram of the grouting assembly in the operating arm of the anchor trolley of the present application being in the second standby position;

[0029] Figure 8 This is a schematic diagram of the first chain structure in the operating arm of the anchor trolley of the present application;

[0030] Fig. 9 for Figure 8 Another state diagram of ;

[0031] Fig.10 for Figure 8 Enlarged view of part A in the middle;

[0032] Fig.11 This is a three-dimensional diagram of the structure of the grouting pipe part in the operating arm of the anchor trolley of this application;

[0033] Fig.12 for Fig.11 A cross-sectional view of

[0034] Fig.13 for Fig.12 Another state diagram of ;

[0035] Fig.14 for Fig.12 Enlarged view of middle part B;

[0036] Fig.15 A three-dimensional diagram of the clamping state of the rod support in the operating arm of the anchor trolley of this application;

[0037] Fig.16 for Fig.15 Another state diagram;

[0038] Fig.17 It is a three-dimensional diagram of the structure of the synchronous displacement part of the rod support in the operating arm of the anchor trolley in one embodiment;

[0039] 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 in another embodiment;

[0040] 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;

[0041] Fig. 20 for Fig.19 Another state diagram of ;

[0042] 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;

[0043] Fig. 22 for Fig.21 Another state diagram of ;

[0044] Fig.23 for Fig.17 An enlarged view of the clutch device in the middle C section in the disengaged state;

[0045] Fig.24 for Fig.23 A schematic diagram of the locking state of the locking device;

[0046] Fig.25 for Fig.23 Schematic diagram of the clutch device in the engaged state;

[0047] Fig.26 for Fig.25 A schematic diagram of the locking device in the unlocked state;

[0048] Fig. 27 for Fig.25 Schematic diagram from another perspective;

[0049] Fig.28 for Fig.23 Schematic diagram from another perspective;

[0050] Fig.29 for Fig.18 Enlarged view of the middle D part;

[0051] Fig.30 for Fig.29 Another state diagram of ;

[0052] Fig.31 for Fig.29 A cross-sectional view of a clutch device;

[0053] Fig.32 for Fig.30 A cross-sectional view of a clutch device;

[0054] Fig.33 for Fig.29 Schematic diagram of the lateral displacement of the first engaging member and the second engaging member.

[0055] The reference numerals in the figures are described as follows:

[0056] 1. Propelling beam; 11. First chain; 12. Driving sprocket; 13. Driven sprocket; 14. Fiber-supporting mechanism;

[0057] 21. first slide plate; 211. front portion;

[0058] 212, rear part; 2121, rear base; 2122, rear slide plate; 2123, guide rail; 2124, oil cylinder;

[0059] 22. Drilling assembly;

[0060] 23. Locking mechanism; 231. Combination rod; 232. Combination hole;

[0061] 3. Grouting components;

[0062] 31. Grouting pipe; 311. Fixing seat; 312. Feed inlet; 313. Discharge outlet;

[0063] 314, nut sleeve; 3141, limiting protrusion; 3142, through hole; 3143, tapered portion;

[0064] 315, anti-collision mouth; 3151, conical cylinder; 3152, straight cylinder; 3153, avoidance groove;

[0065] 316, buffer spring;

[0066] 32. Lifting frame; 321. First support rod; 322. Second support rod; 323. Driving device; 324. Bevel gear set;

[0067] 33. Power device; 331. Motor; 332. Bushing; 333. Bearing;

[0068] 4. Rod bracket;

[0069] 5. Linkage components;

[0070] 51. Clutch device; 511. First engaging member; 5111. Card slot;

[0071] 512, second engaging member; 5121, clamping block; 5122, annular boss;

[0072] 521, first rack; 522, second rack; 523, first ring gear; 524, second ring gear; 525, transmission rod;

[0073] 526, slide rail seat;

[0074] 53. Locking device; 531. Latch; 532. Elastic reset member; 533. Latch hole; 534. Trigger member;

[0075] 535, rotating pin; 536, first connecting plate; 537, second connecting plate; 538, plug block; 539, slot;

[0076] 540, side shift device;

[0077] 551, movable pin, 552, elastic member;

[0078] 6. Drill rod; 7. Anchor rod; 71. Nut; 72. Pad; 73. Rod body;

[0079] 8. Anchor rod warehouse. DETAILED DESCRIPTION

[0080] 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.

[0081] 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.

[0082] 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.

[0083] 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.

[0084] like Figure 2 As shown, the anchor rod 7 generally includes a hollow rod body 73, a nut 71 and a pad 72 that are sleeved on the rod body 73, and an anchor head (not shown in the figure) is also provided at the distal end of the rod body 73. The installation process requires drilling a hole in the rock wall in advance, and then inserting the anchor rod into the anchor rod installation hole. After the installation is completed, the nut 71 is rotated to lock the anchor rod 7. In order to achieve anchoring, grouting is also required to be injected into the drilled hole through the anchor rod. The grout can be made of existing materials, which will not be described here.

[0085] In order to realize the automatic installation of anchor rods, Figures 1 to 8 As shown, the present application provides an operating arm of an anchor trolley, including a propulsion beam 1, a drilling assembly 22 and a grouting assembly 3. Among them, the drilling assembly 22 includes a drill rod 6, which is used to drill an anchor mounting hole on the rock wall, and it can use an existing rock drill. The grouting assembly 3 generally includes a grouting pipe 31 that can be used to grout the anchor mounting hole. In order to achieve a higher degree of automation, the grouting pipe 31 also has the function of docking the anchor rod 7, sending the anchor rod 7 into the anchor mounting hole and rotating the nut 71. The operating arm generally also includes an anchor rod warehouse 8 that stores and sends the anchor rod 7 to the grouting assembly 3, so as to realize unmanned installation of the anchor rod 7.

[0086] 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 component 22 to drill or the grouting component 3 to grout.

[0087] 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. The first slide plate 21 is divided into a front part 211 and a rear part 212 along the first direction. A locking mechanism 23 is provided between the two parts, and has:

[0088] In the combined state, the locking mechanism 23 is locked, and the two parts are relatively fixed and slide synchronously;

[0089] In the separated state, the locking mechanism 23 is released, the two parts are separated, and at least one of them can slide.

[0090] The drilling assembly 22 is slidably mounted on the rear portion 212, and the sliding direction is a second direction that is not the same as the first direction. A first driving mechanism for driving the drilling assembly 22 to slide is generally provided between the drilling assembly 22 and the rear portion 212, and has:

[0091] The first working position, at this time, 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. At the same time, the locking mechanism 23 is locked, and the front part 211 and the rear part 212 of the first slide plate 21 are in a combined state. In this position, the drilling assembly 22 can slide along the first direction to perform drilling operations on the rock wall;

[0092] In the first standby position, after the drilling is completed, the drilling assembly 22 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 the grouting pipe 31 to work, facilitating subsequent grouting operations.

[0093] The grouting assembly 3 is connected and fixed to the front portion 211 of the first slide plate 21. The grouting assembly 3 is provided with a second driving mechanism for moving the grouting pipe 31. The grouting pipe 31 has the following features depending on the second driving mechanism:

[0094] In the second working position, the drilling assembly 22 slides to the first standby position, and the grouting pipe 31 moves close to the first slide plate 21 until its axis is aligned with the anchor rod installation hole. At this time, the locking mechanism 23 is released, and the front part 211 and the rear part 212 of the first slide plate 21 are in a separated state. The grouting pipe 31 can slide along the first direction, and after docking with the anchor rod, the anchor rod is sent into the drill hole and grouting is performed. It can also slide along the first direction to align with the anchor rod installation hole for grouting;

[0095] In the second standby position, the grouting pipe 31 moves away from the first slide plate 21 until a space is left for the drilling assembly 22 to complete the drilling operation when it is in the first working position. The grouting pipe 31 and the drilling assembly 22 work alternately. Specifically, the grouting pipe 31 is in the second standby position, and the drilling assembly 22 is in the first working position. The two are combined and synchronously slide toward the front end to perform the drilling operation. After completion, they return to the rear end, and the drilling assembly 22 slides along the second direction until it is in the first standby position. The grouting pipe 31 moves and is in the second working position. The two are separated to perform the corresponding grouting operation.

[0096] The position switching of the drilling assembly 22 and the grouting assembly 3 is the operation process of the operating arm. The specific operation process is as follows: The drilling assembly 22 is in the first working position. When the operating arm is relatively fixed against the rock wall, the drilling assembly 22 slides forward along the first direction to perform the drilling operation. After the drilling operation is completed, the drilling assembly 22 slides back along the first direction to the rear end of the propulsion beam 1, and at the same time, an anchor rod installation hole is formed on the rock wall. Subsequently, the drilling assembly 22 slides to the first standby position along the second direction, and the grouting pipe 31 of the grouting assembly 3 moves to the second working position, docks the anchor rod 7, slides forward along the first direction, and sends the anchor rod 7 into the anchor rod installation hole, and then delivers the slurry. After the grouting operation is completed, the grouting assembly 3 retreats along the first direction to the rear portion 212, moves the grouting pipe 31 to the second standby position, and the drilling assembly 22 slides to the first working position. The operating arm moves to the next rock wall for a new round of operations.

[0097] The operating arm of the anchor trolley in this embodiment improves the drilling component 22 and the grouting component 3 into a front and rear arrangement. The plate for the drilling component 22 to slide is a whole plate, and only the drilling component 22 is provided for sliding. Compared with the traditional drilling component 22 and the grouting component 3 arranged in parallel perpendicular to the first direction, the structure that must rely on sliding switching between the plates eliminates the gaps for sliding between multiple plates, slides more smoothly, reduces the jamming failure rate, and improves product stability.

[0098] like Figure 5 and Figure 6 As shown, the first driving mechanism in this embodiment includes a rear base 2121 and a rear slide plate 2122 slidably disposed on the rear base 2121, a sliding guide rail 2123 is disposed therebetween, and a cylinder 2124 drives the rear slide plate 2122 to slide back and forth.

[0099] In order to effectively realize the alternating operation of the two, in one embodiment, the first direction and the second direction are perpendicular to each other, so that the sliding stroke of the drilling assembly 22 is minimized, the sliding failure rate is further reduced, and the size of the corresponding components is reduced, thereby reducing the production cost.

[0100] The locking mechanism 23 plays the role of combining and separating, and its specific structure is as follows Figure 3 to Figure 6 As shown, in one embodiment, one of the front portion 211 and the rear portion 212 of the first slide plate 21 is provided with a coupling rod 231 extending in the second direction, and the other is provided with a coupling hole 232 matched with the coupling rod 231. For example, the coupling rod 231 is convexly arranged at the front portion of the rear portion 212 along the second direction, which is the same as the sliding direction of the drilling assembly 22. When the drilling assembly 22 is in the first working position, the coupling rod 231 is inserted into the coupling hole 232. On the contrary, when the drilling assembly 22 is in the first standby position, the coupling rod 231 is withdrawn from the coupling hole 232. Therefore, the switching of the drilling assembly 22 between the first working position and the first standby position can realize coupling and separation, without the need for an extra unlocking member, with a simple structure, and the coupling / separation of the grouting assembly 3 and the drilling assembly 22 is completed.

[0101] like Fig.10 and Fig.11 As shown, in one embodiment, a driving mechanism for driving the front portion 211 of the first slide plate 21 to slide along the first direction is provided on the propulsion beam 1, and the driving mechanism includes a first chain 11 arranged along the first direction, and the front portion 211 of the first slide plate 21 is fixedly connected to a part of the first chain 11. The rear end and the front end of the propulsion beam 1 are respectively provided with a driving sprocket 12 and a driven sprocket 13, which are tension-engaged and connected with the first chain 11 to form a closed waist shape. The first slide plate 21 is driven by the driving sprocket 12, and slides forward and backward synchronously with the first chain 11 to complete drilling or conveying anchor rods. Compared with the belt transmission mechanism, it has higher precision, simple structure, easy maintenance, and adapts to the environment of high-frequency vibration.

[0102] The second driving mechanism is specifically as follows Figure 7 to Figure 9 As shown, in one embodiment, the grouting assembly 3 includes a lifting frame 32 for moving the grouting pipe 31 so that it can be switched between a second working position and a second standby position. The grouting pipe 31 relies on the lifting frame 32 to move away from / close to the propulsion beam 1. In the second working position, the grouting pipe 31 descends and approaches the propulsion beam 1 until the axis is aligned with the anchor rod mounting hole. In the second standby position, the grouting pipe 31 rises and moves away from the propulsion beam 1, providing space for the drilling assembly 22 to slide forward, thereby realizing alternating operation of the drilling assembly 22 and the grouting assembly 3.

[0103] In one embodiment, the lifting frame 32 includes a first support rod 321 and a second support rod 322 hinged to the front portion 211 of the first slide 21, and the grouting pipe 31 is also hinged to the first support rod 321 and the second support rod 322. The front portion 211 of the first slide 21, the first support rod 321, the second support rod 322 and the grouting pipe 31 form a foldable four-bar linkage. A driving device 323 (such as an oil cylinder or a gas cylinder) pivotally connected to one of the support rods is provided on the front portion 211. The driving device 323 drives the support rod and relies on the four-bar linkage to complete the folding / unfolding operation. When the four-bar linkage is folded, the grouting pipe 31 is lowered to approach the propulsion beam 1, and when it is unfolded, the grouting pipe 31 is lifted away from the propulsion beam 1.

[0104] The plane where the movement path of the grouting pipe 31 is located is always the same plane as the vertical plane of the propulsion beam 1 along the first direction. Compared with the mechanism in which the traditional grouting assembly 3 and the drilling assembly 22 are arranged in parallel and slidably switched, the drilling assembly 22 will be located outside the propulsion beam 1. The drilling assembly 22 in this embodiment only needs to slide in the second direction to leave space for the grouting pipe 31 to work, so that the sliding stroke in the second direction is further reduced, the center of gravity offset of the operating arm due to the movement of the drilling assembly 22 is reduced, and the coaxial accuracy of the anchor rod 7 or the grouting pipe 31 and the anchor rod mounting hole is improved, which is convenient for the subsequent delivery of the anchor rod 7 or direct grouting operation. In the first working position, compared with the traditional structure in which the grouting assembly 3 is arranged in parallel and located outside the propulsion beam 1, the grouting assembly 3 and the drilling assembly 22 in the operating arm of the present application are both on the propulsion beam 1, which reduces the shaking effect of the grouting assembly 3 itself and the grouting assembly 3 on the operating arm in the case of high-frequency drilling, and improves the product stability. In the second working position, the drilling assembly 22 is located outside the propulsion beam 1 as compared to the traditional structure in which the entire drilling assembly 22 is located outside the propulsion beam 1, and only a portion of it is located outside the propulsion beam 1, thereby reducing the load force on the rear end of the propulsion beam 1 and extending the service life of the propulsion beam 1.

[0105] In one embodiment, when the lifting frame 32 moves the grouting pipe 31, the first support rod 321 and the second support rod 322 rotate in the same direction, and always keep the grouting pipe 31 extending along the first direction. The four-bar linkage is a parallelogram structure, so that the grouting pipe 31 is always kept horizontal with the propulsion beam 1, so that when the grouting pipe 31 descends to the second working position toward the front end of the propulsion beam 1, it avoids interference with the drilling assembly 22 at the rear end, and remains coaxial with the anchor rod installation hole, so as to facilitate the horizontal installation of the anchor rod 7.

[0106] When the grouting assembly 3 delivers the entire anchor rod 7 to the anchor rod installation hole for grouting, in order to better fix the anchor rod 7 to the hole wall, Figure 12 to Figure 14As shown, in one embodiment, the grouting assembly 3 includes a fixed seat 311 rotatably matched with the grouting pipe 31, and a power device 33 installed on the fixed seat 311 to drive the grouting pipe 31 to rotate. The grouting pipe 31 has a feed port 312 and a discharge port 313. The feed port 312 is connected and fixed with a hose (not shown) for conveying slurry. The discharge port 313 is provided with a nut sleeve 314 for rotating the nut 71 to lock the anchor rod 7. The nut sleeve 314 has a through hole 3142 that is at least partially adapted to the outer contour of the nut 71 and connected to the grouting pipe 31 for the rod body 73 to pass through. The through hole 3142 includes a front section that cooperates with the nut 71 for locking and a rear section that is a circular hole. The front section and the rear section form a step against the nut 71. The shape of the front section adapts to the outer structure of most nuts, such as a regular hexagon. When the anchor rod 7 is inserted into the grouting pipe 31, the nut 71 and the nut sleeve 314 are used to achieve relative fixation with the grouting pipe 31 in the circumferential direction and can rotate synchronously. When the anchor rod 7 is completely transported into the anchor rod installation hole, the power device 33 is started, and the grouting pipe 31 rotates around its own axis, driving the nut 71 to rotate, so that the front end of the anchor rod 7 is expanded and fixed to the hole wall. The hollow design of the grouting pipe 31 facilitates the rod body 73 that exceeds the nut 71 to extend into the grouting pipe 31 through the through hole 3142, which is suitable for anchor rods 7 of different lengths.

[0107] In one embodiment, the discharge port 313 of the grouting pipe 31 is provided with an anti-collision nozzle 315 which protrudes axially from the end thereof and is slidable. The outer sleeve of the grouting pipe 31 is provided with a buffer spring 316 acting on the anti-collision nozzle 315. When the anti-collision nozzle 315 abuts against the rock wall, it prompts that the anchor rod delivery is close to the limit value, and the nut 71 can be rotated to protect the nut sleeve 314. In a preferred embodiment, the anti-collision nozzle 315 includes a tapered cylinder portion 3151 and a straight cylinder portion 3152 sleeved with the grouting pipe. The tapered cylinder portion 3151 is a bell mouth structure which gradually extends radially outward from one end of the straight cylinder portion 3152 close to the rock wall to facilitate the assembly of the nut sleeve 314 and plays a guiding role when the anchor rod 7 is inserted into the nut sleeve 314. The nut sleeve 314 has a limiting protrusion 3141 which radially protrudes from the outer wall of the grouting pipe 31 to limit the detachment of the anti-collision mouth 315. Correspondingly, the straight tube portion 3152 is provided with an avoidance groove 3153 for avoiding the limiting protrusion 3141, and the limiting protrusion 3141 abuts against the end face of the grouting pipe 31 after the nut sleeve 314 is tightened, prompting the nut sleeve 314 to be assembled in place for easy operation.

[0108] In one embodiment, the nut sleeve 314 can be threadedly connected and fixed to the discharge port 313, so that different nut sleeves 314 can be easily disassembled and replaced to adapt to nuts 71 of different specifications, thereby facilitating assembly.

[0109] In one embodiment, the through hole 3142 is provided with a conical portion 3143 with a guiding function. The conical portion 3143 is arranged at the front end and extends radially outward and tilts to guide and receive the anchor rod 7, so as to facilitate the locking fit between the nut 71 and the nut sleeve 314.

[0110] Please refer again Fig.13 In one embodiment, the power device 33 includes a motor 331 and a sleeve 332 sleeved outside the grouting pipe 31, a bevel gear set 324 is arranged between the sleeve 332 and the output shaft of the motor 331, and a bearing 333 is arranged between the sleeve 332 and the fixed seat 311. The sleeve 332 and the grouting pipe 31 are connected by a pin key so that the two rotate synchronously. The bevel gear set 324 can realize the switching between the direction of rotation of the motor output shaft arranged at different positions and the grouting pipe 31, so the arrangement of the motor 331 is not limited. In this embodiment, the motor 331 is arranged vertically upward to the grouting pipe 31, and the structure is more compact. There are two sets of bearings 333, which are respectively located at the front and rear ends of the sleeve 332, so that the sleeve 332 rotates more smoothly.

[0111] For some operating arms with a longer length (for example, a length greater than 3 meters), in order to protect the drill rod 6 connected and fixed to the drilling assembly 22 from being twisted or broken.

[0112] like Figure 1 , Figures 15 to 28 As shown, in one embodiment, the operating arm also includes a rod bracket 4, which 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 avoiding 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 itself to allow the drilling assembly 22 to continue to slide and complete the subsequent drilling operation.

[0113] 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 .

[0114] The rod bracket 4 can move synchronously with the drilling assembly 22 along the second direction, and the two have:

[0115] 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, and the linkage assembly 5 does not work, resulting in the rod bracket 4 being fixed relative to the propulsion beam 1;

[0116] 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.

[0117] In one embodiment, in the first working position, the front end of the propulsion beam 1 is provided with a fiber support mechanism 14 for clamping the front end of the drill rod or anchor rod, the main machine 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 propulsion 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, and improving the safety of use.

[0118] 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:

[0119] In the movable state, the clutch device 51 is engaged, and the rod bracket 4 and the drilling assembly 22 can slide synchronously;

[0120] In the fixed state, the clutch device 51 is separated, 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. The drill rod 6 is always supported by at least two points and remains straight without being subjected to bending stress. 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 21, the block 5121 is separated from the slot 5111 at the opening. The opening is oriented toward the rear end along the first direction and is U-shaped. The block 5121 is protruded along the second direction and has an annular boss 5122 that limits itself from escaping from the slot 5111 along the second direction. When combined, 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.

[0121] 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, and are respectively slidably mounted with two racks. The two gear rings are respectively fixedly mounted at the lower part corresponding to the slide rail seat 526. The specific synchronous sliding method is:

[0122] 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.

[0123] 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.

[0124] 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. Depending on the change in the sliding direction of the drilling assembly 22, the release lock member is driven, 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.

[0125] In one embodiment, a triggering member 534 connected to the latch 531 through 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, the two connecting plates are both pivotally fixed to the rotating pin 535, and rotate in the same direction around the rotating pin 535, and the rotation of one of the connecting plates is driven by the other connecting plate, and the unlocking or releasing of the locking device is realized, specifically:

[0126] 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.

[0127] 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.

[0128] 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. The movable pin 551 is provided with an elastic member 552 that drives it to reset, and in this embodiment, the slot 529 is provided on the slide rail seat 526. The specific clutch locking method is:

[0129] Unlocking, the first engaging member 511 retreats to the first working position along the first direction 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 elastic member 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;

[0130] 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 elastic member 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, thereby 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.

[0131] The operating arm of the rock drilling trolley of the present application improves the drilling component 22 and the grouting component 3 into a front and rear arrangement, and is provided with an independent sliding mechanism for the drilling component 22. While satisfying the switching of the working positions between the two, the drilling component 22 fixed at the rear can slide on a complete and gapless rear base 2121. Compared with the traditional drilling component 22 and the grouting component 3 arranged in parallel in a vertical first direction, which must rely on multiple plates to achieve sliding switching, the sliding is smoother, the jamming failure rate is reduced, and the product stability is improved.

[0132] 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.

[0133] 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. The operating arm of the anchor trolley with anti-jamming function is characterized in that: 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 along a first direction. The first slide plate is divided into a front portion and a rear portion along the first direction. The front portion and the rear portion have a combined state in which they can slide synchronously and a separated state in which they can slide independently. A drilling assembly, comprising a drill rod, slidably mounted on the rear of the first slide plate, capable of reciprocating along a second direction, and having a first working position for preparing to drill a hole in a rock wall and a first standby position for avoiding a grouting assembly, wherein the first direction and the second direction are different; A grouting assembly is installed at the front of the first slide plate, and comprises a grouting pipe that moves relative to the first slide plate; the grouting pipe has a second working position for preparing to inject grout into the borehole and a second standby position that avoids the drilling assembly, and the grouting pipe has a feed inlet and a discharge port, and the feed inlet is connected and fixed with a hose for conveying slurry; The grouting pipe and the drilling assembly are alternately in their respective working positions. When the drilling assembly is in the first working position, the front and rear parts of the first slide plate are combined. When the grouting pipe is in the second working position, the front and rear parts of the first slide plate are separated. The grouting assembly includes a lifting frame for moving the grouting pipe so that it can be switched between the second working position and the second standby position. The lifting frame includes a first support rod and a second support rod hinged to the front part of the first slide plate. The grouting pipe is also hinged to the first support rod and the second support rod. The front part of the first slide plate, the first support rod, the second support rod and the grouting pipe constitute a foldable four-bar linkage. When the lifting frame moves the grouting pipe, the first support rod and the second support rod rotate in the same direction and always keep the grouting pipe extending along the first direction.

2. The operating arm of the anchor trolley with anti-jamming function according to claim 1 is characterized in that: The first direction and the second direction are perpendicular to each other.

3. The operating arm of the anchor trolley with anti-jamming function according to claim 1 is characterized in that: The propulsion beam is provided with a driving mechanism for driving the front portion of the first slide plate to slide along a first direction. The driving mechanism comprises a first chain arranged along the first direction. The front portion of the first slide plate is fixedly connected to a part of the first chain.

4. The operating arm of the anchor trolley with anti-jamming function according to claim 1, characterized in that: One of the front part and the rear part of the first slide plate is provided with a coupling rod extending along the second direction, and the other is provided with a coupling hole matched with the coupling rod.

5. The operating arm of the anchor trolley with anti-jamming function according to claim 1, characterized in that: The grouting assembly includes a fixed seat that rotates with the grouting pipe and a power device installed on the fixed seat to drive the grouting pipe to rotate. The grouting pipe has a feed inlet and a discharge outlet. A nut sleeve is provided at the discharge outlet for rotating the anchor nut to lock the anchor.

6. The operating arm of the anchor trolley with anti-jamming function according to claim 5, characterized in that: The outlet of the grouting pipe is provided with an anti-collision nozzle which protrudes axially from the end thereof and can slide relatively, and the outer sleeve of the grouting pipe is provided with a buffer spring acting on the anti-collision nozzle.

7. The operating arm of the anchor trolley with anti-jamming function according to claim 6, characterized in that: The anti-collision nozzle comprises a conical cylinder portion and a straight cylinder portion sleeved with the grouting pipe, and the nut sleeve has a limiting protrusion radially protruding from the outer wall of the grouting pipe to limit the anti-collision nozzle from being separated.

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