Anchor trolley drill rod connecting device

Abstract

The present invention provides a drill rod connecting device for an anchor trolley, belonging to the technical field of anchor trolleys, comprising a rock drilling arm, a rock drilling assembly is arranged at the top of the rock drilling arm, a connecting rod assembly is arranged on one side of the rock drilling arm, and the connecting rod assembly comprises a support seat fixed to one side of the outer wall of the rock drilling arm; in the process of connecting the anchor rod, the motor body can be started, and the anchor rod body can be moved between the threaded shaft and the first limit seat with the cooperation of the connecting rod assembly, and then the limit is performed with the cooperation of the limit assembly, and then the rock drilling motor is started, and at the same time, the purpose of automatic loosening is achieved with the mutual cooperation of the stop block, the inner sliding seat and the connecting rod, and the mutual cooperation of the guide piece and the fixing block can achieve the role of precise positioning. The anchor trolley can greatly reduce the error in the construction process through precise positioning, ensure that the installation position and angle of the anchor rod are accurate, save construction time, and reduce the rework caused by inaccurate positioning.

Description

Technical Field

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

[0002] The anchor trolley is a self-moving equipment that drills anchor holes in the roof or side walls of underground tunnels and completes part or all of the anchor installation process. With the popularization and development of anchor support operations in underground projects such as mine shafts and tunnels, major foreign mining equipment companies have successively launched trolley-type anchor drilling and loading vehicles with full functions and high degree of automation, truly realizing the high degree of mechanization and intelligence of anchor support construction, thereby reducing the burden on workers and improving work efficiency and construction quality.

[0003] In order to ensure the installation efficiency of the anchor bolts, the existing anchor bolt trolley is usually equipped with an anchor bolt receiving device.

[0004] There are rod connecting devices in the prior art. For example, Chinese invention patent application CN117386307A discloses an anchor trolley drill rod connecting device, which includes a lifting mechanism, a pushing mechanism, a jacking mechanism, a drill rod box, a drill rod, a rock drill, and a push beam. Multiple drill rods are stacked in the drill rod box. The invention uses multiple sets of lifting mechanisms, pushing mechanisms, and jacking mechanisms to work together to complete the drill rod connecting action while ensuring that the tail of the drill rod is concentrically connected with the front end connecting sleeve of the rock drill.

[0005] However, the above patent still has certain shortcomings. According to the description of the above scheme, the slot carrying the drill rod is pushed to the side of the rock drill by the pushing cylinder. Under the action of the pushing cylinder, the drill rod overcomes the elastic part and is stuck in the slot. The elastic part suffers from metal fatigue during repeated deformation, which makes it difficult for the slot to clamp the drill rod. The drill rod that is not clamped tightly may suddenly fall off due to movement during the rod replacement process. The fallen drill rod may injure people, posing a great safety hazard.

[0006] Therefore, the prior art is in urgent need of an anchor trolley drill rod connecting rod device. Summary of the invention

[0007] The object of the present invention is to provide a drill rod connecting rod device for an anchor rod trolley, so as to solve the problem of potential safety hazards in the connecting rod device in the prior art.

[0008] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

[0009] A rod connecting rod device for an anchor trolley comprises a rock drilling arm, a rock drilling assembly is arranged at the top of the rock drilling arm, and a connecting rod assembly is arranged at one side of the rock drilling arm;

[0010] The connecting rod assembly comprises a support seat fixed to one side of the outer wall of the rock drilling arm, and a motor body is installed at the top of the support seat, and a rotating shaft body is arranged at the output end of the motor body, and the rotating shaft body is rotatably connected to the top of the support seat, and a telescopic assembly is arranged on the support seat away from the motor body. The telescopic assembly comprises a plurality of telescopic sleeves fixed to one end of the rotating shaft body, and a plurality of telescopic sliding rods are slidably arranged inside the plurality of telescopic sleeves, and each telescopic sliding rod extends to the outside of each telescopic sleeve, and a fixing block slidably connected to each telescopic sleeve is fixed on the outer wall of each of the telescopic sliding rods, and each fixing block extends to the outside of each telescopic sleeve, and a straight sliding groove matching the fixing block is opened on the outer wall of each of the telescopic sleeves, a fixing rod is fixedly arranged on the side of the top of the support seat away from the rotating shaft body, and the fixing rod extends to one side of the plurality of telescopic sleeves, a guide member is fixed on one end of the fixing rod near the plurality of telescopic sleeves, and a guide groove matching the fixing block is opened on the outer wall of the guide member, and a sleeve rod assembly is arranged on the side of the plurality of telescopic sliding rods away from the rotating shaft body.

[0011] As a preferred solution of the drill rod connecting device of an anchor trolley of the present invention, the rock drilling assembly includes a propulsion slide sliding on the top of the rock drilling arm, a rock drilling motor is installed on the top of the propulsion slide, a driving shaft is provided at the output end of the rock drilling motor, and the driving shaft and the rock drilling motor are connected by a coupling, and a threaded shaft is fixedly provided at one end of the driving shaft away from the rock drilling motor.

[0012] As a preferred solution of the anchor trolley drill rod connecting device of the present invention, the plurality of telescopic sleeves are distributed in a circular array about the central axis of the rotating shaft body, and the rotating shaft body is connected to the motor body through a coupling.

[0013] As a preferred solution of a drill rod connecting device of an anchor trolley of the present invention, the rod sleeve assembly includes a rod sleeve seat fixed to one end of the telescopic sliding rod, a rotating plate is rotatably provided at the top of the rod sleeve seat, an anchor rod body is arranged between the rotating plate and the rod sleeve seat, an inner sliding seat is rotatably provided inside the rod sleeve seat, a limiting block is slidably provided on the outer wall of the rod sleeve seat on one side of the rotating plate, a connecting rod is fixedly provided between the limiting block and the inner sliding seat, and a stop block in contact with the inner sliding seat is fixedly provided on the outer wall of the driving shaft, and each of the anchor rod bodies is provided with a threaded groove near one end of the threaded shaft.

[0014] As a preferred solution of the drill rod connecting device of an anchor trolley of the present invention, one side of the outer wall of the limit block is in contact with the outer wall of the rotating plate, a torsion spring is fixedly arranged between the rotating plate and the rod sleeve seat, an outer sliding groove matching the limit block is opened on the outer wall of the rod sleeve seat, and a reset spring is fixedly arranged between the inner sliding seat and the inner wall of the rod sleeve seat.

[0015] As a preferred solution of an anchor trolley drill rod connecting device of the present invention, the limit assembly includes two electric telescopic rods respectively installed inside a first limit seat and a second limit seat, a lower rubber pad is fixedly provided at the output end of the electric telescopic rod, and the top end of the lower rubber pad is in contact with the outer wall of the anchor body, and an upper rubber pad is fixedly provided above the lower rubber pad inside the first limit seat and the second limit seat, and the bottom end of the upper rubber pad is in contact with the outer wall of the anchor body.

[0016] As a preferred solution of the anchor trolley drill rod connecting rod device of the present invention, each anchor body is provided with a threaded groove at one end close to the threaded shaft.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In the process of connecting the anchor rods, the present invention can start the motor body, and at the same time, with the cooperation of the connecting rod assembly, the anchor rod body can be moved to between the threaded shaft and the first limit seat, and then with the cooperation of the limit assembly, the limit is performed, and then the rock drilling motor is started. At the same time, with the cooperation of the stop block, the inner slide seat and the connecting rod, the purpose of automatic loosening is achieved, and the mutual cooperation of the guide member and the fixed block can play a role in precise positioning. The anchor rod trolley can greatly reduce the error in the construction process through precise positioning, ensure that the installation position and angle of the anchor rod are accurate, save construction time, and greatly reduce the rework caused by inaccurate positioning;

[0019] 2. When the anchor rod is connected, the electric telescopic rods in the first limit seat and the second limit seat can be started at the same time. At the same time, under the action of the two limit assemblies, the outer wall of the anchor rod is closely attached to the two sets of upper rubber pads and lower rubber pads, which achieves the purpose of limiting. The anchor rod trolley accurately controls the anchor rod through the limit assembly to ensure that the anchor rod can reach the specified position and angle according to the design requirements during the installation process. This helps to reduce construction errors and improve the construction quality of the overall project. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0021] Figure 1 It is an overall stereogram of the connecting rod device of the present invention;

[0022] Figure 2 For the present invention Figure 1 A partial enlarged view of middle A;

[0023] Figure 3 A front perspective view of the rock drilling arm of the present invention;

[0024] Figure 4 For the present invention Figure 3 A partial enlarged view of B in the middle;

[0025] Figure 5 It is a front perspective view of the connecting rod assembly of the present invention;

[0026] Figure 6 A side sectional view of a sleeve rod seat of the present invention;

[0027] Figure 7 It is a cross-sectional view of the other side of the sleeve rod seat of the present invention;

[0028] Figure 8 For the present invention Figure 7 A partial enlarged view of middle C;

[0029] Fig. 9 It is a side sectional view of the first limiting seat of the present invention;

[0030] Fig.10 For the present invention Fig. 9 A partial enlarged view of D in the middle.

[0031] In the figure: 1, rock drilling arm; 2, rock drilling assembly; 21, propulsion slide; 22, rock drilling motor; 23, driving shaft; 24, threaded shaft; 25, stop block;

[0032] 3. Connecting rod assembly; 31. Support seat; 32. Rotating shaft body; 33. Telescopic assembly; 331. Telescopic sleeve; 332. Telescopic slide rod; 333. Fixed block; 334. Straight slide groove; 34. Sleeve rod assembly; 341. Sleeve rod seat; 342. Inner slide seat; 343. Connecting rod; 344. Rotating plate; 345. Limit block; 35. Fixed rod; 36. Guide piece; 361. Guide groove;

[0033] 4. Anchor body;

[0034] 5. Limiting assembly; 51. Electric telescopic rod; 52. Lower rubber pad; 53. Upper rubber pad; 6. First limiting seat; 61. Second limiting seat. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] The following first describes the concepts involved in the present application in conjunction with the accompanying drawings. It should be noted that the following description of each concept is only to make the content of the present application easier to understand, and does not limit the scope of protection of the present application; at the same time, the embodiments and features in the embodiments of the present application can be combined with each other in the absence of conflict. The present application will be described in detail with reference to the accompanying drawings and in conjunction with the embodiments.

[0037] like Figures 1 to 10 As shown, according to one aspect of the present invention, there is provided a drill rod connecting rod device of an anchor trolley, comprising a rock drilling arm 1, a rock drilling assembly 2 is arranged at the top of the rock drilling arm 1, and a connecting rod assembly 3 is arranged at one side of the rock drilling arm 1;

[0038] The connecting rod assembly 3 includes a support seat 31 fixed to one side of the outer wall of the rock drilling arm 1, a motor body is installed on the top of the support seat 31, a rotating shaft body 32 is provided at the output end of the motor body, and the rotating shaft body 32 is rotatably connected to the top of the support seat 31, and a telescopic assembly 33 is provided on the side of the support seat 31 away from the motor body, and the telescopic assembly 33 includes a plurality of telescopic sleeves 331 fixed to one end of the rotating shaft body 32, and a telescopic slide rod 332 is slidably provided inside the plurality of telescopic sleeves 331, and each telescopic slide rod 332 extends to the outside of each telescopic sleeve 331, and the outer wall of each telescopic slide rod 332 is fixed with a telescopic slide rod 332 connected to each telescopic sleeve 331. The sleeve 331 is slidably connected to a fixed block 333, and each fixed block 333 extends to the outside of each telescopic sleeve 331, and the outer wall of each telescopic sleeve 331 is provided with a straight sliding groove 334 matching the fixed block 333, a fixed rod 35 is fixedly provided on the top of the support seat 31 away from the rotating shaft body 32, and the fixed rod 35 extends to one side of multiple telescopic sleeves 331, and a guide member 36 is fixed to one end of the fixed rod 35 close to the multiple telescopic sleeves 331, and a guide groove 361 matching the fixed block 333 is provided on the outer wall of the guide member 36, and a sleeve rod assembly 34 is provided on the side of multiple telescopic slide rods 332 away from the rotating shaft body 32;

[0039] The rock drilling assembly 2 includes a propulsion slide 21 sliding on the top of the rock drilling arm 1, a rock drilling motor 22 is installed on the top of the propulsion slide 21, a driving shaft 23 is provided at the output end of the rock drilling motor 22, and the driving shaft 23 is connected to the rock drilling motor 22 through a coupling, and a threaded shaft 24 is fixedly provided at one end of the driving shaft 23 away from the rock drilling motor 22;

[0040] A plurality of telescopic sleeves 331 are distributed in a circular array about the central axis of the rotating shaft body 32, and the rotating shaft body 32 is connected to the motor body through a coupling;

[0041] The sleeve rod assembly 34 includes a sleeve rod seat 341 fixed to one end of the telescopic slide rod 332, a rotating plate 344 is rotatably provided at the top of the sleeve rod seat 341, an anchor rod body 4 is provided between the rotating plate 344 and the sleeve rod seat 341, an inner slide seat 342 is rotatably provided inside the sleeve rod seat 341, a limit block 345 is slidably provided on the outer wall of the sleeve rod seat 341 at one side of the rotating plate 344, a connecting rod 343 is fixedly provided between the limit block 345 and the inner slide seat 342, a stop block 25 in contact with the inner slide seat 342 is fixedly provided on the outer wall of the driving shaft 23, and a threaded groove is provided on one end of each anchor rod body 4 close to the threaded shaft 24;

[0042] One side of the outer wall of the limit block 345 contacts the outer wall of the rotating plate 344, a torsion spring is fixedly arranged between the rotating plate 344 and the sleeve rod seat 341, an outer sliding groove matching the limit block 345 is opened on the outer wall of the sleeve rod seat 341, a return spring is fixedly arranged between the inner sliding seat 342 and the inner wall of the sleeve rod seat 341, the guide groove 361 includes an annular groove, and a V-shaped groove is arranged on the side of the annular groove close to the driving shaft 23, and the V-shaped groove is connected to the annular groove;

[0043] A first limit seat 6 is fixedly provided at the top of the rock drilling arm 1, and a second limit seat 61 is slidably provided on the side of the push slide 21 close to the first limit seat 6. A limit assembly 5 is provided inside the first limit seat 6 and the second limit seat 61. The second limit seat 61 extends to the inside of the push slide 21. A hydraulic rod is fixed at the bottom end of the push slide 21, and the other end of the hydraulic rod is fixedly connected to the inner wall of the rock drilling arm 1.

[0044] When the anchor rod body 4 is connected, the motor body can be started to drive the shaft body 32 at its end to rotate around the connection position with the support seat 31, and then drive the multiple telescopic sleeves 331 fixed at the end of the shaft body 32 to make a circular motion. Figure 5As shown, the telescopic slide bar 332 slidably connected to the telescopic sleeve 331 is driven to make a circular motion, and then the fixed block 333 fixed to one side of the outer wall of the telescopic slide bar 332 is driven to slide inside the guide groove 361, and the telescopic slide bar 332 located above the annular groove can revolve toward one side of the V-shaped groove. In the process of the fixed block 333 sliding from the end of the annular groove to the position closest to the driving shaft 23 in the V-shaped groove, the fixed block 333 can be driven to slide inside the straight groove 334 and gradually approach the driving shaft 23, and at the same time, the telescopic slide bar 332 fixedly connected to the fixed block 333 is driven to slide to the right. When the rod sleeve seat 341 loaded with the anchor rod body 4 moves to the side where the driving shaft 23 is away from the rock drilling motor 22, the anchor rod body 4 can be limited by the two limiting components 5 located in the first limiting seat 6 and the second limiting seat 61. At this time, the hydraulic rod can be started to drive the propulsion slide 21 to slide on the top of the rock drilling arm 1, and the rock drilling motor 22 and the driving shaft 23 can be moved toward the anchor rod body 4. The sliding movement can drive the threaded shaft 24 to be inserted into the rod sleeve seat 341. When the outer wall thread of the threaded shaft 24 contacts the thread groove on the inner wall of the anchor rod body 4, the stop block 25 fixed on the outer wall of the driving shaft 23 can contact the inner sliding seat 342 inside the rod sleeve seat 341. The rock drilling motor 22 can be started to drive the driving shaft 23 set at its output end to rotate, and at the same time, the inner sliding seat 342 can be pushed to slide on the inner wall of the rod sleeve seat 341. Under the connection of the connecting rod 343, the limit block 345 can be driven to slide on the outer wall of the rod sleeve seat 341. At this time, the limit block 345 can be separated from the rotating plate 344, and then By starting the motor body and driving the shaft body 32 to rotate, the sleeve rod seat 341 located on one side of the driving shaft 23 can be driven to move to the left with the cooperation of the connecting rod assembly 3. At this time, the rotating plate 344 is not blocked by the limiting block 345, and the anchor rod body 4 can be separated from the inner wall of the sleeve rod seat 341, pushing the rotating plate 344 to rotate around the connection position with the sleeve rod seat 341, and making the anchor rod body 4 move from the inner side of the sleeve rod seat 341 to the outer side thereof. At the same time, as the threaded shaft 24 continues to rotate, the threaded shaft 24 fits with the threaded groove on the inner wall of the anchor rod body 4, which can achieve the purpose of connecting the rod.

[0045] In this embodiment, the limiting assembly 5 includes two electric telescopic rods 51 respectively installed inside the first limiting seat 6 and the second limiting seat 61, a lower rubber pad 52 is fixedly provided at the output end of the electric telescopic rod 51, and the top end of the lower rubber pad 52 contacts the outer wall of the anchor rod body 4, and an upper rubber pad 53 is fixedly provided inside the first limiting seat 6 and the second limiting seat 61 above the lower rubber pad 52, and the bottom end of the upper rubber pad 53 contacts the outer wall of the anchor rod body 4.

[0046] When the anchor rod body 4 needs to be limited, the electric telescopic rod 51 inside the first limit seat 6 and the second limit seat 61 is started respectively, and the lower rubber pad 52 fixed to the top of the electric telescopic rod 51 is driven to rise, and the anchor rod body 4 is simultaneously in close contact with the two upper rubber pads 53 and the lower rubber pad 52, which plays a role in limiting the anchor rod body 4.

[0047] The working principle of this device is: when the anchor rod body 4 is connected, the motor body can be started to drive the shaft body 32 at its end to rotate around the connection position with the support seat 31, and then drive the multiple telescopic sleeves 331 fixed to the end of the shaft body 32 to make a circular motion, and at the same time drive the telescopic slide rod 332 slidably connected to the telescopic sleeve 331 to make a circular motion, and then drive the fixed block 333 fixed to one side of the outer wall of the telescopic slide rod 332 to slide inside the guide groove 361, and the telescopic slide rod 332 located above the annular groove can revolve toward one side of the V-shaped groove, and in the process of the fixed block 333 sliding from the end of the annular groove to the position closest to the driving shaft 23 of the V-shaped groove, it can drive the fixed block 333 to slide inside the guide groove 361. The block 333 slides inside the straight slide groove 334 and gradually approaches the driving shaft 23, and at the same time drives the telescopic slide rod 332 fixedly connected to the fixed block 333 to slide rightward, and drives the sleeve rod seat 341 fixedly connected thereto to gradually move to the side of the driving shaft 23 away from the rock drilling motor 22. When the sleeve rod seat 341 loaded with the anchor rod body 4 moves to the side of the driving shaft 23 away from the rock drilling motor 22, the electric telescopic rod 51 inside the first limit seat 6 and the second limit seat 61 are respectively started, and at the same time, the lower rubber pad 52 fixed to the top of the electric telescopic rod 51 is driven to rise, and the anchor rod body 4 is simultaneously in close contact with the two upper rubber pads 53 and the lower rubber pad 52, which plays a role in tightening the anchor rod body 4. The role of limiting is that the hydraulic rod can be started to drive the propulsion slide 21 to slide on the top of the rock drilling arm 1, and drive the rock drilling motor 22 and the driving shaft 23 to move toward the direction of the anchor body 4. With the continuous sliding of the propulsion slide 21, the threaded shaft 24 can be driven to be inserted into the inside of the sleeve rod seat 341. When the outer wall thread of the threaded shaft 24 contacts the thread groove on the inner wall of the anchor body 4, the stop block 25 fixed on the outer wall of the driving shaft 23 can contact the inner slide seat 342 inside the sleeve rod seat 341. The rock drilling motor 22 can be started to drive the driving shaft 23 set at its output end to rotate, and at the same time, the inner slide seat 342 can be pushed to slide on the inner wall of the sleeve rod seat 341. Under the connection of the connecting rod 343, the limit block can be driven The cam 345 is engaged with the drive shaft 32 and the drive shaft 32 is engaged with the drive shaft 23.

[0048] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and its core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the invention to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A bolt trolley drill rod connecting device, comprising a rock drilling arm (1), characterized in that: A rock drilling assembly (2) is arranged at the top of the rock drilling arm (1), and a connecting rod assembly (3) is arranged at one side of the rock drilling arm (1); The connecting rod assembly (3) comprises a support seat (31) fixed to one side of the outer wall of the rock drilling arm (1), a motor body is installed on the top of the support seat (31), a rotating shaft body (32) is arranged at the output end of the motor body, and the rotating shaft body (32) is rotatably connected to the top of the support seat (31), and a telescopic assembly (33) is arranged on the side of the support seat (31) away from the motor body, and the telescopic assembly (33) comprises a plurality of telescopic sleeves (331) fixed to one end of the rotating shaft body (32), a telescopic slide rod (332) is slidably arranged inside the plurality of telescopic sleeves (331), and each telescopic slide rod (332) extends to the outside of each telescopic sleeve (331), and the outer wall of each telescopic slide rod (332) is fixed with a telescopic sleeve (331) and a telescopic slide rod (332) connected to each telescopic sleeve (331) A fixed block (333) is slidably connected to the support seat (31), and each fixed block (333) extends to the outside of each telescopic sleeve (331), and the outer wall of each telescopic sleeve (331) is provided with a straight sliding groove (334) matching the fixed block (333), a fixed rod (35) is fixedly arranged on the top of the support seat (31) away from the rotating shaft body (32), and the fixed rod (35) extends to one side of the plurality of telescopic sleeves (331), and a guide member (36) is fixed on one end of the fixed rod (35) close to the plurality of telescopic sleeves (331), and the outer wall of the guide member (36) is provided with a guide groove (361) matching the fixed block (333), and a sleeve rod assembly (34) is provided on the side of the plurality of telescopic sliding rods (332) away from the rotating shaft body (32).

2. The anchor trolley drill rod connecting device according to claim 1, characterized in that: The rock drilling assembly (2) comprises a propulsion slide (21) which slides on the top of the rock drilling arm (1); a rock drilling motor (22) is installed on the top of the propulsion slide (21); a driving shaft (23) is provided at the output end of the rock drilling motor (22); the driving shaft (23) and the rock drilling motor (22) are connected via a coupling; a threaded shaft (24) is fixedly provided at one end of the driving shaft (23) away from the rock drilling motor (22).

3. The anchor trolley drill rod connecting device according to claim 1, characterized in that: The plurality of telescopic sleeves (331) are distributed in a circular array about the central axis of the rotating shaft body (32), and the rotating shaft body (32) is connected to the motor body via a coupling.

4. The anchor trolley drill rod connecting device according to claim 2, characterized in that: The sleeve rod assembly (34) comprises a sleeve rod seat (341) fixed to one end of the telescopic sliding rod (332); a rotating plate (344) is rotatably provided at the top of the sleeve rod seat (341); an anchor rod body (4) is provided between the rotating plate (344) and the sleeve rod seat (341); an inner sliding seat (342) is rotatably provided inside the sleeve rod seat (341); a limit block (345) is slidably provided on the outer wall of the sleeve rod seat (341) at one side of the rotating plate (344); a connecting rod (343) is fixedly provided between the limit block (345) and the inner sliding seat (342); a stop block (25) in contact with the inner sliding seat (342) is fixedly provided on the outer wall of the driving shaft (23); and a threaded groove is provided at one end of each anchor rod body (4) close to the threaded shaft (24).

5. The anchor trolley drill rod connecting device according to claim 4, characterized in that: One side of the outer wall of the limit block (345) contacts the outer wall of the rotating plate (344); a torsion spring is fixedly arranged between the rotating plate (344) and the sleeve rod seat (341); an outer sliding groove matching the limit block (345) is formed on the outer wall of the sleeve rod seat (341); and a return spring is fixedly arranged between the inner sliding seat (342) and the inner wall of the sleeve rod seat (341).

6. The anchor trolley drill rod connecting device according to claim 4, characterized in that: A first limit seat (6) is fixedly provided at the top end of the rock drilling arm (1), a second limit seat (61) is slidably provided on a side of the propulsion slide (21) close to the first limit seat (6), a limit assembly (5) is provided inside the first limit seat (6) and the second limit seat (61), and the second limit seat (61) extends into the interior of the propulsion slide (21).

7. The anchor trolley drill rod connecting device according to claim 6, characterized in that: The limiting assembly (5) comprises two electric telescopic rods (51) respectively mounted inside a first limiting seat (6) and a second limiting seat (61); a lower rubber pad (52) is fixedly arranged at the output end of the electric telescopic rod (51), and the top end of the lower rubber pad (52) contacts the outer wall of the anchor rod body (4); an upper rubber pad (53) is fixedly arranged above the lower rubber pad (52) inside the first limiting seat (6) and the second limiting seat (61), and the bottom end of the upper rubber pad (53) contacts the outer wall of the anchor rod body (4).

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