Rock stratum pushing device and rock stratum pushing machine

Abstract

The utility model provides a kind of rock stratum jacking device and rock stratum jacking machine, belong to engineering machinery field. Rock stratum jacking device includes mounting bracket, jacking assembly, lifting drive component machine multiple limiters, mounting bracket is provided with installation space, installation space extends along the height direction of mounting bracket. Jacking assembly is located in installation space, and gap is provided between jacking assembly and the side portion inner wall of mounting bracket;Lifting drive component is set on mounting bracket, and jacking assembly can be driven to move up and down;Limiter is elastic telescopic structure, one end of limiter is connected with mounting bracket, and the other end is slidably abutted with jacking assembly. Since jacking assembly and lifting drive component are movably connected, and gap is left between jacking assembly and mounting bracket;Therefore, jacking assembly can be inclined according to the inclination angle of rock stratum hole, so as to facilitate into hole. Rock stratum jacking machine adopts the above-mentioned jacking device, and the overall jacking efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery, and more specifically, to a rock jacking device and a rock jacking machine. Background Technology

[0002] Rock jacking devices are used to push rock strata to break them. In practice, a rock drilling device is first used to drill a hole, and then the rock jacking component is inserted into the hole. The jacking component applies a pushing force to the sidewalls of the hole, thus breaking the rock. Due to the influence of the rock structure, it is difficult to perfectly match the shape of the rock hole to the jacking component; furthermore, the hole is often not perfectly vertical but has a certain angle of inclination. Therefore, in these situations, inserting the jacking component into the hole becomes quite difficult. Utility Model Content

[0003] The purpose of this invention is to provide a rock stratum jacking device, wherein the jacking component can adaptively adjust its own angle according to the shape of the rock stratum hole, thereby facilitating the insertion of the jacking component into the hole.

[0004] Another objective of this utility model is to provide a rock jacking machine that employs the aforementioned rock jacking device.

[0005] This utility model is implemented as follows: A rock strata jacking device, comprising: The mounting frame has an installation space that extends along the height direction of the mounting frame. A jacking assembly is located within the installation space, and a gap is provided between the jacking assembly and the inner side wall of the mounting frame; A lifting drive assembly is mounted on the mounting frame and movably connected to the upper end of the pushing assembly. The lifting drive assembly is capable of driving the pushing assembly to move up and down. Multiple limiters, each limiter being an elastic structure, with one end connected to the mounting bracket and the other end slidably abutting against the push assembly; The plurality of limiters surround the push assembly and are located at the lower part of the mounting bracket.

[0006] Furthermore, the limiter includes a first fitting part and a second fitting part, the first fitting part fitting to the side of the push assembly, and the second fitting part fitting to and connected to the inner wall of the mounting bracket; the first fitting part and the second fitting part are connected by a bent connecting part.

[0007] Furthermore, the limiter is formed by bending a strip of metal; the bent connection includes two or more bent structures.

[0008] Furthermore, the jacking assembly includes multiple jacking boxes arranged sequentially from top to bottom, with adjacent jacking boxes connected by flexible connectors, allowing adjacent jacking boxes to swing relative to each other; each jacking box is provided with a jacking cylinder on its side.

[0009] Furthermore, the lowest of the plurality of push boxes is the first push box, which includes two opposing first push surfaces and second push surfaces. A first push cylinder and a third push cylinder are provided on the first push surface, and a second push cylinder and a fourth push cylinder are provided on the second push surface.

[0010] Furthermore, the second push cylinder is located below the fourth push cylinder, and the maximum thrust of the second push cylinder is greater than the maximum thrust of the fourth push cylinder; the third push cylinder is located below the first push cylinder, and the maximum thrust of the third push cylinder is greater than the maximum thrust of the first push cylinder.

[0011] Furthermore, the rear side of the mounting frame is used for connection with the carrier, and the front side of the mounting frame is provided with a force-applying frame, which is slidably connected to the mounting frame and can move up and down along the mounting frame; the force-applying frame is connected to the mounting frame through an auxiliary hydraulic cylinder; When the auxiliary cylinder extends, the lower end of the force-applying frame can abut against the ground.

[0012] Furthermore, the force-applying frame includes a support rod and a sliding rod, the support rod and the sliding rod forming a telescopic rod structure; the support rod is located below the sliding rod and is connected to the sliding rod via a support cylinder; the sliding rod is connected to the auxiliary cylinder; The sliding rod is provided with a force-applying part, which can cooperate with the external force-receiving part to provide downward pressure or lifting force to the external force-receiving part.

[0013] Furthermore, the force-applying part is a longitudinally extending block structure; Alternatively, the force-applying part includes a force-applying roller, which is rotatably connected to the force-applying frame via a transverse rotating shaft that extends laterally along the force-applying frame; Alternatively, the force-applying part includes two force-applying rollers, which are rotatably connected to the force-applying frame via transverse rotating shafts, both of which extend laterally along the force-applying frame; the two force-applying rollers are arranged parallel to each other and vertically. Alternatively, the force-applying part may include a force-applying roller, which is rotatably connected to the force-applying frame via a longitudinal rotating shaft that extends longitudinally along the mounting frame.

[0014] Furthermore, it also includes support rods and support cylinders; The support rod is slidably engaged with the force-applying frame and can move along the height direction of the mounting frame. One end of the support cylinder is connected to the force-applying frame, and the other end is connected to the support rod.

[0015] Furthermore, when the support rod is slidably engaged with the mounting frame, it also includes a guide cylinder, which is fixedly connected to the mounting frame and extends along the height direction of the mounting frame; the support rod is slidably engaged with the guide cylinder and can move along the height direction of the mounting frame. One end of the support cylinder is connected to the guide cylinder, and the other end is connected to the support rod; one end of the support rod can contact the ground.

[0016] When the support rod is hinged to the mounting bracket, one end of the support cylinder is hinged to the mounting bracket, and the other end of the support cylinder is hinged to the support rod.

[0017] A rock jacking machine includes a carrier, a support arm, and a rock jacking device. The rear end of the support arm is connected to the carrier, and the rock jacking device is installed at the front end of the support arm.

[0018] The beneficial effects of this utility model are: The rock jacking device of this invention, as designed above, allows the lower end of the jacking component to move to the upper end of the rock hole by moving the mounting frame. Furthermore, the limiting component prevents the jacking component from swinging back and forth when the mounting frame is moved, facilitating the alignment of the lower end of the jacking component with the upper end of the rock hole, thus preparing for entry into the hole. Because the jacking component is movably connected to the lifting drive component, and a gap exists between the jacking component and the mounting frame, the jacking component can tilt according to the inclination angle of the rock hole, facilitating entry into the hole. The use of this jacking device in the rock jacking machine improves the overall jacking efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the rock jacking machine provided by this utility model; Figure 2 This is a schematic diagram of the rock stratum jacking device provided by this utility model after the installation frame has been removed; Figure 3 This is a partial view of the jacking assembly provided by this utility model; Figure 4 This is a structural schematic diagram of the first push box and flexible connector provided by this utility model; Figure 5 This is a partial cross-sectional view of the jacking assembly provided by this utility model; Figure 6 This is an exploded view of the jacking device provided by this utility model; Figure 7 This is a schematic diagram of the structure of the rock stratum jacking machine and the rock stratum drilling machine working together, provided by this utility model; Figure 8 This is a schematic diagram of the rock stratum top pushing device provided in Embodiment 2 of this utility model.

[0021] Icons: 1-Rock jacking device; 11-Mounting frame; 12-Jacking assembly; 121-First jacking box; 1211-First jacking cylinder; 1212-Second jacking cylinder; 1213-Third jacking cylinder; 1214-Fourth jacking cylinder; 1215-First jacking surface; 1216-Second jacking surface; 1217-First side; 122-Second jacking box; 123-Flexible connector; 124-End cap; 13-Auxiliary cylinder; 141-Force application frame; 14 2-Support rod; 143-Support cylinder; 144-Sliding arm; 145-Guide cylinder; 15-Force application part; 151-Side plate; 152-Force application roller; 16-Lifting drive assembly; 17-Limiter; 171-First fitting part; 172-Second fitting part; 173-Bending connection part; 2-Rock stratum construction machine; 21-Carrier; 22-Support arm; 23-Upper cylinder; 3-Drilling device; 31-Force-bearing part; 32-Force-bearing frame; 33-Drilling assembly. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0023] In this application, the driver is used as a reference, with the area in front of the driver being "front" and the area behind the driver being "rear"; "vertical" is used as a reference in the usage state.

[0024] Reference Figure 1 The carrier 21 is located behind the mounting frame 11, and the auxiliary hydraulic cylinder 13 is located above the force application frame 141. The carrier 21 faces the mounting frame 11 in a longitudinal direction. The carrier 21 is an excavator, which has an upper body and a lower body. The upper body is rotatably connected to the lower body. The upper body rotates in a horizontal direction, which also includes the lateral direction. Example 1

[0025] Please refer to Figure 1 This embodiment provides a rock jacking machine, which includes a carrier 21, a support arm 22, and a rock jacking device 1. The carrier 21 is an excavator body. The rear end of the support arm 22 is hinged to the carrier 21. A lower hydraulic cylinder is also provided below the support arm 22, with one end hinged to the carrier 21 and the other end hinged to the middle of the support arm 22. An upper hydraulic cylinder 23 is also provided above the support arm 22, with one end hinged to the middle of the support arm 22 and the other end hinged to the rock jacking device 1. The rock jacking device 1 is hinged to the upper hydraulic cylinder 23 and the front end of the support arm 22 through different connecting parts.

[0026] Please refer to Figure 1 and Figure 2 The rock strata jacking device 1 includes a mounting frame 11, a jacking assembly 12, and a lifting drive assembly 16. The interior of the mounting frame 11 is an installation space. The lifting drive assembly 16 is mounted on the mounting frame 11, and the jacking assembly 12 is disposed within the installation space of the mounting frame 11. The upper end of the jacking assembly 12 is movably connected to the lifting drive assembly 16, and a gap (e.g., 200-300 mm) is provided between the jacking assembly 12 and the inner side wall of the mounting frame 11. This design allows the jacking assembly 12 to adaptively adjust its entry angle according to the inclination angle and shape of the rock strata borehole.

[0027] To prevent the push assembly 12 from swinging back and forth during the movement of the mounting bracket 11 and affecting the manhole, a plurality of limiters 17 are provided between the lower part of the push assembly 12 and the lower part of the mounting bracket 11. The limiters 17 are evenly distributed around the push assembly 12. The limiters 17 are elastic structures, with one end connected to the lower part of the mounting bracket 11 and the other end slidably abutting against the lower part of the push assembly 12. This design allows the limiters 17 to prevent the push assembly 12 from swinging back and forth during movement without affecting the vertical movement of the push assembly 12.

[0028] Specifically, the mounting frame 11 is a vertically arranged rectangular cylindrical structure (referring to its usage state), and its internal vertical cavity serves as the installation space. The lifting drive assembly 16 employs a winch, with the winch drum installed below the rear of the mounting frame 11. The winch's wire rope passes over two fixed pulleys on the upper part of the mounting frame 11 and connects to the upper end of the jacking assembly 12. In other embodiments, the mounting frame 11 may also be a cylindrical structure, or it may be a frame structure; the lifting drive assembly 16 may also be a hydraulic cylinder vertically arranged inside the mounting frame 11.

[0029] In this embodiment, the rock stratum jacking device 1 employs four limiters 17. Each limiter 17 is a structure formed by bending strip metal sheets, including a first fitting portion 171 and a second fitting portion 172. The first fitting portion 171 fits against the side of the jacking assembly 12, and the second fitting portion 172 fits against and connects to the outer wall of the mounting frame 11. The first fitting portion 171 and the second fitting portion 172 are connected by a bent connecting portion 173. The bent connecting portion 173 allows for elastic compression between the first fitting portion 171 and the second fitting portion 172, and includes two or more bending structures. Furthermore, the end of the first fitting portion 171 is bent away from the jacking assembly 12, thereby facilitating the vertical movement of the jacking assembly 12 relative to the first fitting portion 171. The limiters 17 with the above structure are relatively simple in structure and easy to install and replace. Alternatively, in other embodiments, the limiter 17 may also be a helical spring or an air spring; in this case, one end of the helical spring or air spring is connected to the mounting bracket, and the other end of the helical spring or air spring is fixedly connected to a roller, which slidably abuts against the outer wall of the pushing assembly. Please refer to... Figures 3-5 The jacking assembly 12 includes multiple jacking boxes, each of which has a jacking cylinder on its side. The multiple jacking boxes are arranged sequentially from top to bottom; adjacent jacking boxes are connected by a flexible connector 123, allowing adjacent jacking boxes to swing relative to each other.

[0030] Each push box is provided with an end cover 124 on its side. After the end cover 124 is opened, the upper part of the flexible connector 123 is connected to the connecting part inside the upper push box using screws.

[0031] If the height of the jacking component 12 is less than the depth of the rock hole, after jacking is completed, the crushed rock is likely to fall above the jacking component 12, making it difficult for the jacking component 12 to exit the hole. Therefore, using multiple jacking boxes to ensure that the upper end of the jacking component 12 is always higher than the outlet of the rock hole facilitates the exit of the jacking component 12. However, if multiple jacking boxes are rigidly connected, or if a single jacking box with a very high height is used, the extrusion pressure from the side rock is relatively large, and the magnitude and direction of the extrusion pressure vary at different heights, which can easily cause the jacking component 12 to bend and deform. Therefore, using a flexible connection method can effectively prevent the deformation of the jacking component 12.

[0032] The side of the jacking box is provided with a blind hole, and the jacking cylinder is installed horizontally in the blind hole. When the jacking cylinder extends, its front end can apply a jacking force to the side wall of the rock stratum hole; when the jacking cylinder retracts, the entire jacking cylinder retracts into the blind hole.

[0033] Please refer to Figure 3The sides of the push box are called push surfaces. Taking the lowest push box 121 as an example, the first push box 121 includes a first side 1217, a second side 1215, a first push surface 1216, and a second push surface 1216. The first side 1217 and the second side 1216 are arranged opposite to each other, and the first push surface 1215 and the second push surface 1216 are arranged opposite to each other. The push box includes a first push cylinder 1211 and a third push cylinder 1213. The first push cylinder 1211 is located in the blind hole of the first push surface 1215, and the third push cylinder 1213 is located in the blind hole of the second side 1215. The first push cylinder 1211 is located below the third push cylinder 1213. The maximum thrust of the first push cylinder 1211 is greater than that of the third push cylinder 1213. For example, the maximum thrust of the first push cylinder is 50 tons, and the maximum thrust of the third push cylinder is 35 tons.

[0034] The advantage of this structure is that it allows the first jacking cylinder 1211 to extend first. During the jacking process, the rock strata will loosen towards the direction of the jacking cylinder's extension and upwards. If they loosen upwards too early, it will not maximize the loosening range in the direction of the jacking cylinder's extension, thus reducing the loosening effect of the rock strata. The first jacking cylinder 1211, located at the bottom, extends first, which is conducive to maximizing the loosening range of the rock strata.

[0035] The first pusher box 121 also includes a second pusher cylinder 1212 and a fourth pusher cylinder 1214. The second pusher cylinder 1212 is located in a blind hole in the first pusher surface 1215, and the fourth pusher cylinder 1214 is located in a blind hole in the second side surface. The second pusher cylinder is located below the fourth pusher cylinder. The maximum thrust of the first pusher cylinder 1211 is 50 tons, the maximum thrust of the second pusher cylinder 1212 is 40 tons, the maximum thrust of the third pusher cylinder 1213 is 35 tons, and the maximum thrust of the fourth pusher cylinder 1214 is 30 tons.

[0036] The advantage of this structure is that, during the rock strata jacking process, the first and third jacking cylinders typically loosen first in their extension direction, which maximizes the loosening range of the rock strata towards the first jacking surface 1215 and the second jacking surface 1216. When the resistance encountered by the first and second jacking cylinders during their extension is greater than the resistance encountered by the second jacking surface 1216, the first jacking box 121 will move in the opposite direction of the extension direction of the first jacking cylinder, further expanding the loosening range of the rock strata. Typically, the resistance at the top of the loosened rock strata is less than the resistance at the bottom, and the maximum thrust of the third jacking cylinder is greater than the maximum thrust of the fourth jacking cylinder, which helps the lower part of the first jacking box 121 maintain a relatively larger movement distance, thus maximizing the loosening range of the rock strata. When the resistance encountered by the third and fourth jacking cylinders during their extension is greater than the resistance encountered by the first jacking surface 1215, the first jacking box 121 will move in the opposite direction of the extension direction of the third jacking cylinder, further expanding the loosening range of the rock strata. Normally, the resistance at the top of the loosened rock layer is less than that at the bottom. The maximum thrust of the first jacking cylinder is greater than that of the second jacking cylinder, which helps the lower part of the first jacking box 121 to maintain a relatively larger movement distance, thereby maximizing the loosening range of the rock layer.

[0037] The remaining push boxes can have only one push cylinder on each of the two opposite sides, or they can be arranged in the same way as the lower push box. Alternatively, in other embodiments, the first push cylinder 1211 can also have one push cylinder on each of the two opposite push surfaces, or one push cylinder on each of the four push surfaces.

[0038] The first push box 121 and the second push box 122 have a vertical height of 1500 mm each, and their horizontal length and width are the same. The first side 1217 and the second side 122 are oppositely arranged planes with a distance of 320 mm between them. The first push surface 1215 and the second push surface 1216 are oppositely arranged arc surfaces with a maximum distance of 480 mm between them. The inner cavity of the push box is square in the horizontal direction, with a length of 980 mm and a width of 820 mm. When the push assembly 12 is in the middle position and its shape matches the inner cavity, the gap between the push assembly 12 and the mounting bracket 11 is 250 mm, and its maximum swing amplitude can reach 500 mm.

[0039] When the rock jacking device 1 is installed on the carrier 21, the lower connecting part of the rear side of the mounting frame 11 is hinged to the front end of the support arm 22, and the upper connecting part is hinged to the telescopic cylinder; the entire jacking device is located on the front side of the carrier 21, therefore, the jacking device applies a forward and downward tilting torque to the carrier 21. Especially when the jacking assembly 12 is pulled out of the rock hole, the downward rock resistance experienced by the jacking assembly 12 is very large, which may affect the overall stability of the rock jacking machine.

[0040] Therefore, please refer to Figure 1 , Figure 6 and Figure 7 The front side of the mounting frame 11 is equipped with a force-applying frame 141, a support rod 142, and a support cylinder 143. The force-applying frame 141 is located on the front side of the mounting frame 11 and can move up and down along the mounting frame 11. The force-applying frame 141 is connected to the mounting frame 11 through a vertically arranged auxiliary cylinder 13. When the auxiliary cylinder 13 and the support cylinder 143 are extended, the lower end of the support rod 142 can abut against the ground. When the jacking assembly 12 is pulled out of the rock hole, the auxiliary cylinder 13 is extended, so that the lower end of the support rod 142 abuts against the ground. At this time, the force-applying frame 141 provides an upward supporting force to the mounting frame 11, thereby keeping the rock jacking machine stable. After the jacking assembly 12 is disengaged from the rock hole, the force-applying frame 141 can be raised to a certain height.

[0041] Specifically, the support rod 142 and the force-applying frame 141 constitute a telescopic rod structure. The force-applying frame 141 is a rectangular cylindrical structure with an opening at its lower end, and the support rod 142 is disposed within the force-applying frame 141. One end of the support cylinder 143 is hinged to the upper end of the force-applying frame 141, and the other end is hinged to the support rod 142. Four sliding arms 144 are provided on the rear side of the force-applying frame 141, and each sliding arm 144 is provided with two sliding wheels. The sliding wheels cooperate with the guide rails on both sides of the mounting frame 11, allowing the force-applying frame 141 to move up and down along the height direction of the mounting frame 11.

[0042] In other embodiments, one end of the support rod 142 is hinged to the force-applying frame 141, and one end of the support cylinder 143 is hinged to the force-applying frame 141. The other end of the support cylinder 143 is hinged to the middle of the support rod 142. The extension and retraction of the support cylinder 143 drives the support rod 142 to rotate, and the other end of the support rod 142 can also contact the ground to achieve support.

[0043] The auxiliary hydraulic cylinder 13 is positioned above the force-applying frame 141, with one end hinged to the upper end of the mounting frame 11 and the other end hinged to the upper end of the force-applying frame 141. When the force-applying frame 141 needs to be moved upwards, the auxiliary hydraulic cylinder 13 is shortened; when the force-applying frame 141 needs to be moved downwards, the auxiliary hydraulic cylinder 13 is extended. Furthermore, since the rock stratum jacking device 1 is often used in conjunction with the drilling device 3, and the drilling device 3 often requires additional downward pressure to improve drilling efficiency when the drill rod is drilling, and often requires additional lifting force when the drilling device 3 disengages from the hole, a force-applying part 15 is provided on the force-applying frame 141 to better cooperate with the drilling device 3. This force-applying part 15 can provide downward pressure and lifting force to the drilling device 3.

[0044] The force-applying part 15 is located on the front side of the force-applying frame 141. When the force-applying frame 141 moves upward, the force-applying part 15 applies a lifting force to the force-receiving part 31 of the punching device 3. When the force-applying frame 141 moves downward, the force-applying part 15 applies a downward pressure to the force-receiving part 31 of the punching device 3.

[0045] The force-applying part 15 includes two vertical side plates 151, and two force-applying rollers 152 arranged vertically between the two side plates 151, with the two force-applying rollers 152 arranged horizontally. At this time, the force-receiving part 31 of the drilling device 3 that cooperates with the force-applying part 15 has a strip-shaped block structure. When the force-applying part 15 applies a lifting force or a downward force to the force-receiving part 31, the two may move relatively far apart or close together in the horizontal direction. The above design can reduce the damage caused by relative movement through rolling friction.

[0046] Alternatively, the force-receiving part 31 and the force-applying part 15 can also be coupled in the following ways: 1. The force-receiving part 31 is a block structure extending longitudinally, and the force-applying part 15 is provided with a force-applying roller 152. The force-applying roller 152 is rotatably connected to the force-applying frame 141 through a transverse rotating shaft.

[0047] 2. The force-receiving part 31 includes a force-receiving roller, which is rotatably connected to the force-receiving frame 32 via a transverse rotating shaft. The force-applying part 15 is a longitudinally extending block structure. In both of the above methods, when it is necessary to change the direction of the applied force, the force-applying part 15 needs to be moved longitudinally first, and then the force-applying part 15 needs to be moved above or below the force-receiving part 31. Since the force-receiving roller has a certain length in the transverse direction and the block structure has a certain length in the longitudinal direction, the cooperation between the force-receiving roller and the block structure makes the operation very convenient. Even if the force-applying part 15 moves too much to the left or right due to misoperation, it will only cause the force-applying part 15 to separate from the force-receiving part 31, and will not cause damage to the force-receiving part 31.

[0048] 3. The force-bearing part 31 includes a force-bearing roller, which is connected to the force-bearing frame 32 via a transverse rotating shaft. The force-applying part 15 consists of two block structures arranged vertically and extending longitudinally, with the force-bearing roller located between the two block structures.

[0049] 4. For example Figure 8 The force-applying part 15 includes two force-applying rollers 152, which are connected to the force-applying frame 141 via a transverse rotating shaft. The force-receiving part 31 is a longitudinally extending block structure located between the two force-applying rollers 152. In methods 3 and 4 described above, when it is necessary to change the direction of the force, it is not necessary to move the force-applying part 15 longitudinally, making it easier to operate.

[0050] 5. The force-applying part 15 includes a force-applying roller 152, which is rotatably connected to the force-applying frame 141 via a longitudinal rotating shaft extending longitudinally along the mounting frame 11. The force-receiving part is provided with two force-receiving rollers, which are rotatably connected to the force-receiving frame 32 via a transverse rotating shaft. The advantage of this arrangement is that when the drill rod swings laterally during the drilling process, it will cause the force-receiving part 31 to swing laterally. The longitudinally arranged force-applying roller 152 can reduce the frictional resistance between the force-receiving part 31 and the force-applying part 15. Since the force transmission is mutual, it avoids the drill rod from being subjected to a large transverse reaction force and breaking.

[0051] Regarding the drilling device 3, the drilling device in this embodiment is a hammer, which includes a hammer rod and a chisel rod. The hammer rod can impact the chisel rod, and the impact energy is transmitted to the rock strata to form a hole through the chisel rod. The drilling device 3 can also be a drill, which includes a drive device, a drill rod and a drill bit. The drive device drives the drill rod to rotate, and the drill rod drives the drill bit to cut the rock strata to form a hole.

[0052] The operating methods for the jacking device and the hole-forming device are as follows: Step 1: When the drilling device 3 is in operation, move the carrier 21 and operate the force-applying frame 141 until the force-applying part 15 contacts the upper part of the force-receiving part 31 to apply downward pressure to the drilling device 3. Step 2: When the drilling device 3 has reached the set drilling depth, the force-applying part 15 is removed, and the drilling device 3 moves to the next set drilling point to continue the next drilling operation. In Step 2, if it is difficult to lift the drilling device 3, the force-applying part 15 can be used to apply a lifting force to the drilling device 3 to help it come out of the hole; if the force-applying part 15 is difficult to lift the drilling device 3 due to the imbalance of the carrier 21, the support rod 142 is operated until the lower part of the support rod 142 contacts the rock layer, and then the force-applying part 15 is lifted to help the drilling device 3 come out of the hole.

[0053] Step 4: Operate the jacking assembly 12 into the hole to continue the jacking operation. After the jacking cylinder is fully extended, retract the jacking cylinder and move the jacking box assembly out of the hole. Then, the auxiliary support is moved to cooperate with the force-applying part 15 and the force-receiving part 31. In this step, after the drilling device 3 is moved out of the hole, the jacking device can also stop the jacking operation and continue the continuous jacking operation after a certain number of holes have been drilled. This choice should be determined according to the specific situation. If the jacking assembly 12 is difficult to move out of the hole due to the balance problem of the carrier 21, then operate the auxiliary support to make the lower part of the auxiliary support contact the rock layer, and then continue to lift the jacking assembly 12. Example 2

[0054] Please refer to Figure 8 The rock jacking device provided in this embodiment differs from that in Embodiment 1 in that the support rod 142 and the support cylinder 143 are set separately from the force application frame 141.

[0055] Specifically, two vertical guide cylinders 145 are provided on the rear side of the mounting bracket 11, and the support rod 142 is slidably disposed in the guide cylinder 145. One end of the support cylinder 143 is hinged to the upper end of the guide cylinder 145, and the other end is hinged to the lower end of the support rod 142.

[0056] In other embodiments, one end of the support rod 142 is hinged to the mounting frame 11, and one end of the support cylinder 143 is hinged to the mounting frame 11, while the other end of the support cylinder 143 is hinged to the middle of the support rod 142. The extension and retraction of the support cylinder 143 drives the support rod 142 to rotate, and the other end of the support rod 142 can also contact the ground to achieve support.

[0057] In other embodiments, based on this embodiment, the force-applying frame 141 may not be provided; or the support rod 142 and the support cylinder 143 may not be provided.

[0058] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A rock stratum jacking device, characterized in that, include: The mounting frame has an installation space that extends along the height direction of the mounting frame. A jacking assembly is located within the installation space, and a gap is provided between the jacking assembly and the inner side wall of the mounting frame; A lifting drive assembly is mounted on the mounting frame and movably connected to the upper end of the pushing assembly. The lifting drive assembly is capable of driving the pushing assembly to move up and down. Multiple limiters, each limiter being an elastic structure, with one end connected to the mounting bracket and the other end slidably abutting against the push assembly; The plurality of limiters surround the push assembly and are located at the lower part of the mounting bracket.

2. The rock strata jacking device according to claim 1, characterized in that: The limiter includes a first fitting part and a second fitting part. The first fitting part fits against the side of the push assembly, and the second fitting part fits against and is connected to the mounting bracket. The first fitting part and the second fitting part are connected by a bent connecting part.

3. The rock strata jacking device according to claim 2, characterized in that: The limiter is formed by bending a strip of metal; the bent connection includes two or more bending structures.

4. The rock strata jacking device according to claim 1, characterized in that: The jacking assembly includes multiple jacking boxes arranged sequentially from top to bottom. Adjacent jacking boxes are connected by flexible connectors, allowing them to swing relative to each other. Each jacking box is equipped with a jacking cylinder on its side.

5. The rock strata jacking device according to claim 4, characterized in that: The lowest of the plurality of push boxes is the first push box. The first push box includes two opposing first push surfaces and second push surfaces. A first push cylinder and a third push cylinder are provided on the first push surface, and a second push cylinder and a fourth push cylinder are provided on the second push surface.

6. The rock strata jacking device according to claim 5, characterized in that: The second push cylinder is located below the fourth push cylinder, and the maximum thrust of the second push cylinder is greater than the maximum thrust of the fourth push cylinder; the third push cylinder is located below the first push cylinder, and the maximum thrust of the third push cylinder is greater than the maximum thrust of the first push cylinder.

7. The rock strata jacking device according to claim 1, characterized in that: The rear side of the mounting frame is used for connection with the carrier, and the front side of the mounting frame is provided with a force-applying frame. The force-applying frame is slidably connected to the mounting frame and can move up and down along the mounting frame. The force-applying frame is connected to the mounting frame through an auxiliary hydraulic cylinder. The force-applying frame is provided with a force-applying part, which can cooperate with an external force-receiving part to provide downward pressure or lifting force to the external force-receiving part.

8. The rock strata jacking device according to claim 7, characterized in that: The force-applying part is a longitudinally extending block structure; Alternatively, the force-applying part includes a force-applying roller, which is rotatably connected to the force-applying frame via a transverse rotating shaft that extends laterally along the force-applying frame; Alternatively, the force-applying part includes two force-applying rollers, which are rotatably connected to the force-applying frame via transverse rotating shafts, both of which extend laterally along the force-applying frame; the two force-applying rollers are arranged parallel to each other and vertically. Alternatively, the force-applying part may include a force-applying roller, which is rotatably connected to the force-applying frame via a longitudinal rotating shaft that extends longitudinally along the mounting frame.

9. The rock strata jacking device according to claim 7, characterized in that: It also includes support rods and support cylinders; The support rod is hinged or slidably connected to the force-applying frame; one end of the support cylinder is connected to the support rod, and the other end of the support cylinder is connected to the force-applying frame; one end of the support rod can contact the ground.

10. The rock strata jacking device according to claim 9, characterized in that: When the support rod is slidably engaged with the mounting frame, it also includes a guide cylinder, which is fixedly connected to the mounting frame and extends along the height direction of the mounting frame; the support rod is slidably engaged with the guide cylinder and can move along the height direction of the mounting frame. One end of the support cylinder is connected to the guide cylinder, and the other end is connected to the support rod; When the support rod is hinged to the mounting bracket, one end of the support cylinder is hinged to the mounting bracket, and the other end of the support cylinder is hinged to the support rod.

11. A rock jacking machine, characterized in that, The device includes a carrier, a support arm, and a rock jacking device as described in any one of claims 1-10, wherein the rear end of the support arm is connected to the carrier, and the rock jacking device is installed at the front end of the support arm.

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