Angle-adjustable bidirectional sliding type drill boom device
By introducing a buffer assembly consisting of a transmission rod, gears, racks, and spring telescopic rods into the drill arm device, the problem of hard impact caused by rapid angle adjustment speed was solved, thereby improving the stability and lifespan of the drill arm device and adapting to complex construction needs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY 23RD CONSTR BUREAU LTD
- Filing Date
- 2026-03-16
- Publication Date
- 2026-04-17
AI Technical Summary
The existing bidirectional sliding drill arm device adjusts the angle quickly, resulting in hard impacts between components, increasing wear, reducing stability and lifespan, and the rubber buffer is ineffective and needs to be replaced frequently.
The system employs adjustable components, including a buffer assembly consisting of a transmission rod, gears, racks, and spring telescopic rods. Through meshing transmission and elastic deformation, it absorbs impact energy. Combined with the guiding and limiting functions of the worm gear and slide groove, it enables flexible angle adjustment and buffer support for the drilling assembly.
It enables the drilling arm to drill holes from multiple directions and angles in complex construction scenarios, improving construction efficiency, reducing wear, and enhancing stability and lifespan.
Smart Images

Figure CN224134580U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of drill arm devices, and in particular relates to an adjustable angle bidirectional sliding drill arm device. Background Technology
[0002] With the booming development of underground engineering construction, tunnel excavation, mining and other fields have placed increasingly stringent demands on the efficiency and precision of construction equipment. As the core execution component of the rock drilling rig, the drill arm device directly determines the positioning accuracy, coverage and construction efficiency of drilling operations. Its performance not only affects the progress of the project, but is also closely related to construction safety and support quality. Therefore, drill arm equipment with both flexible adjustment capabilities and stable operation performance is needed to support construction under complex working conditions.
[0003] However, existing bidirectional sliding drill arm devices adjust angles rapidly, which can easily cause hard impacts between components, accelerating wear, significantly reducing operational stability, and shortening the overall service life of the device. Currently, rubber buffers are typically added to reduce these impact wear issues. However, these components are prone to fatigue damage over long-term use, resulting in poor performance and the need for regular replacement, leading to unsatisfactory overall results. Utility Model Content
[0004] The purpose of this utility model is to provide an adjustable angle bidirectional sliding drill arm device. By setting an adjustment part, it solves the problem that in the existing bidirectional sliding drill arm device, the angle adjustment speed is too fast during the adjustment process, which easily causes hard impact between components, aggravates device wear, greatly reduces the stability of the device, and shortens the overall service life of the device.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model relates to an adjustable angle bidirectional sliding drill arm device, comprising a drilling assembly and an adjusting part. The drilling assembly is mounted on the adjusting part via the adjusting assembly, which includes a sliding groove. The drilling assembly can slide along the sliding groove under the action of a driving device. The adjusting assembly also includes a buffer assembly, which comprises:
[0007] The system comprises a transmission rod, a gear, a rack, and a spring telescopic rod. One end of the transmission rod is connected to the slide groove and can rotate as the drilling assembly slides. The other end of the transmission rod is connected to the rack, and the rotation of the transmission rod drives the rack to move linearly. The rack meshes with the gear, and a spring telescopic rod is connected to the end of the rack. The deformation direction of the spring telescopic rod is consistent with the movement direction of the rack.
[0008] In some alternative embodiments, there are two racks, each meshing with the symmetrical side of the gear; at least one set of spring telescopic rods on the two racks are arranged opposite each other.
[0009] In some optional embodiments, the transmission rod is provided with a strip-shaped slot, and the rack has a hinge block; one end of the hinge block is fixedly connected to the rack, and the other end is slidably connected in the strip-shaped slot.
[0010] In some optional embodiments, the adjusting component includes a semi-cylindrical block, both ends of which are provided with the sliding groove, the sliding groove being a semi-circle corresponding to the end of the semi-cylindrical block; the buffer component is provided on the side wall of the semi-cylindrical block.
[0011] Furthermore, it also includes a mounting part; a worm gear is arranged along the arc surface of the semi-cylindrical block, and a worm adapted to the worm gear is provided on the mounting part; the drilling assembly is assembled on the mounting part.
[0012] Furthermore, a corresponding slider is slidably provided in the groove, one side of the slider is fixedly connected to the mounting part, and the other side is hinged to the transmission rod.
[0013] In some alternative embodiments, the transmission rod is rotatably mounted on the side wall of the semi-cylindrical block via a cylindrical rod; the gear is rotatably mounted on the side wall of the semi-cylindrical block.
[0014] In some alternative embodiments, the sidewall of the semi-cylindrical block has an auxiliary groove, and the buffer assembly is accommodated in the auxiliary groove; one end of the spring telescopic rod is fixed to the inner wall of the auxiliary groove, and the other end is fixedly connected to the rack.
[0015] In some alternative embodiments, a sliding part for controlling the raising and lowering of the drilling assembly is also included; a rotary motor is provided on the sliding part, a rotating shaft is provided on the output end of the rotary motor, a support ring is fixedly connected to the outer wall of the rotating shaft, one side of the support ring is fixedly connected to the semi-cylindrical block, and the other side of the support ring is rotatably mounted on the sliding part by a limiting member.
[0016] Furthermore, the sliding part includes a support column, a slide rail, and a mounting frame; the slide rail is arranged on the support column along the length direction of the support column, and the mounting frame is slidably connected to the slide rail by a plurality of support sliders; the support column is also provided with a rack, which is parallel to the slide rail, and the mounting frame is provided with a drive motor, the output end of which meshes with the rack through a gear to drive the mounting frame to move up and down along the support column.
[0017] Furthermore, the limiting member includes an annular limiting groove formed on the mounting bracket, and the side wall of the support ring is provided with an annular snap-fit member adapted to the limiting groove, the snap-fit member being rotatable within the limiting groove.
[0018] This utility model has the following beneficial effects:
[0019] By setting up an adjustment unit, the meshing transmission of the worm gear and the semi-worm wheel drives the mounting part to make arc-shaped movements with the guidance and limiting of the slider and the slide groove, thereby driving the drilling assembly to complete the angle adjustment; the rotary motor is started, which drives the support ring to slide smoothly along the limiting groove through the rotating shaft, driving the semi-cylindrical block to rotate, and then through the linkage of the mounting part, the direction adjustment of the drilling assembly is realized. There is no need to move the whole machine, which can flexibly adapt to the drilling needs of multiple directions and angles in complex construction scenarios, thus improving construction efficiency.
[0020] In this application, when the mounting part drives the slider to move in the slide groove, the slider will drive the transmission rod to rotate on the cylindrical rod. The transmission rod pushes the hinge block to move through the strip-shaped slot, which in turn drives one side rack to move. This rack moves synchronously through the gear. The two racks then squeeze the spring telescopic rod to deform and generate elastic force, thus buffering the angle adjustment process. When the mounting part stops adjusting, it can form angle support. When adjusting in the opposite direction, the spring telescopic rod is stretched, which can also achieve buffering and support in the corresponding direction. This achieves bidirectional buffering and position support for angle adjustment, absorbs impact energy, achieves smooth braking, reduces wear during device operation, and improves the stability and service life of the device.
[0021] 3. By setting up a sliding part, when the drilling assembly and drive motor are started during operation, the drive motor drives the gear to roll along the rack and pinion, pushing the mounting frame to drive the support slider to slide smoothly along the slide rail. Then, by using the linkage of the support ring, semi-cylindrical block, slider and mounting part, the drilling assembly is moved to complete the drilling operation. It can quickly drive the drilling assembly to the target operation position, shorten the operation preparation time and improve the continuity of drilling operation.
[0022] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0025] Figure 2 This is a partial cross-sectional view of the adjustment component of this utility model;
[0026] Figure 3 This is a partial cross-sectional view of the rotating component of this utility model;
[0027] Figure 4 This is a partially exploded cross-sectional view of the rotating component of this utility model;
[0028] Figure 5 This is a partial cross-sectional view of the sliding part of this utility model;
[0029] Figure 6 This is a partially exploded cross-sectional view of the sliding part of this utility model;
[0030] Figure 7 This utility model Figure 2 A magnified structural diagram of A in the diagram.
[0031] The attached diagram lists the components represented by each number as follows:
[0032] 111. Support plate; 112. Drilling assembly;
[0033] 2. Adjustment section;
[0034] 21. Adjustment component; 211. Semi-cylindrical block; 212. Slide groove; 213. Slider; 214. Mounting part; 215. Worm gear; 216. Worm;
[0035] 22. Buffer assembly; 221. Transmission rod; 222. Gear 1; 223. Rack 1; 224. Spring telescopic rod; 225. Strip slot; 226. Hinge block; 227. Cylindrical rod; 228. Auxiliary slot;
[0036] 3. Sliding part; 311. Support column; 312. Slide rail; 313. Mounting bracket; 314. Rotary motor; 315. Rotating shaft; 316. Support ring; 317. Limiting groove; 318. Support slider; 319. Rack II; 320. Drive motor; 321. Gear II. Detailed Implementation
[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0038] Please see Figure 1-7 As shown, this utility model is an adjustable angle bidirectional sliding drill arm device, including a drilling assembly 112 and an adjustment part 2. The drilling assembly 112 is mounted on the adjustment part 2 via an adjustment component 21. The adjustment component 21 includes a slide groove 212, and the drilling assembly 112 can slide along the slide groove 212 under the action of a driving device. The adjustment component 21 is also provided with a buffer component 22, which includes:
[0039] The system comprises a transmission rod 221, a gear 222, a rack 223, and a spring telescopic rod 224. One end of the transmission rod 221 is connected to a slide groove 212 and can rotate with the sliding of the drilling assembly 112. The other end of the transmission rod 221 is connected to the rack 223, and the rotation of the transmission rod 221 drives the rack 223 to move linearly. The rack 223 meshes with the gear 222, and the end of the rack 223 is connected to the spring telescopic rod 224. The deformation direction of the spring telescopic rod 224 is consistent with the movement direction of the rack 223. In this embodiment, the spring telescopic rod 224 specifically consists of a telescopic rod and a telescopic spring sleeved on the telescopic rod. At least one end of the rack 223 is provided with the spring telescopic rod 224, that is, both ends of the rack 223 can be provided with the spring telescopic rod 224.
[0040] In another embodiment, two racks 223 may be provided, respectively meshing with the symmetrical side of gear 222; at least one set of spring telescopic rods 224 on the two racks 223 are arranged opposite to each other, that is, the spring telescopic rod 224 on one rack 223 and the other spring telescopic rod 224 on the other rack 223 are arranged in a mirror-like staggered manner to improve the buffering effect and ensure the stability of the mechanism operation.
[0041] In this embodiment, the transmission rod 221 is provided with a strip-shaped slot 225, and the rack 223 is provided with a hinge block 226. One end of the hinge block 226 is fixedly connected to the rack 223, and the other end is slidably connected in the strip-shaped slot 225. When the transmission rod 221 rotates as the angle of the drilling assembly 112 changes, the hinge block 226 can be driven by the rotation of the transmission rod 221 and the action of the strip-shaped slot 225 to drive the rack 223 to move linearly, thereby transmitting the force to the spring telescopic rod 224.
[0042] In this embodiment, the adjusting component 21 includes a semi-cylindrical block 211, with sliding grooves 212 at both ends of the semi-cylindrical block 211. The sliding grooves 212 are semi-circular corresponding to the ends of the semi-cylindrical block 211. Buffer components 22 are provided on the side walls of the semi-cylindrical block 211, and auxiliary grooves 228 are provided on the side walls of the semi-cylindrical block 211. The buffer components 22 are accommodated in the auxiliary grooves 228. The adjustable angle bidirectional sliding drill arm device in this embodiment also includes a mounting part 214. A worm gear 215 is arranged along the arc surface of the semi-cylindrical block 211, and a worm 216 adapted to the worm gear 215 is provided on the mounting part 214. The drilling component 112 is mounted on the mounting part 214. By driving the worm 216 to rotate, the angle of the drilling component 112 can be adjusted under the linkage of the worm gear 215. Specifically, a corresponding slider 213 is slidably mounted within the groove 212. One side of the slider 213 is fixedly connected to the mounting part 214, and the other side is hinged to the transmission rod 221. The transmission rod 221 is rotatably mounted on the side wall of the semi-cylindrical block 211 via a cylindrical rod 227; the gear 222 is rotatably mounted on the side wall of the semi-cylindrical block 211. One end of the spring telescopic rod 224 is fixed to the inner wall of the auxiliary groove 228, and the other end is fixedly connected to the rack 223. To ensure the stable movement of the rack 223, additional features can be added to the rack 223. Figure 5 On the motion trajectory, matching limit sliders and limit grooves are respectively set on the contact surfaces of rack 223 and auxiliary groove 228 to ensure the good usability of buffer assembly 22.
[0043] The adjustable-angle bidirectional sliding drill arm device of this embodiment also includes a sliding part 3 for controlling the lifting and lowering of the drilling assembly 112; a rotary motor 314 is provided on the sliding part 3, and a rotating shaft 315 is provided on the output end of the rotary motor 314. A support ring 316 is fixedly connected to the outer wall of the rotating shaft 315. One side of the support ring 316 is fixedly connected to the semi-cylindrical block 211, and the other side of the support ring 316 is rotatably mounted on the sliding part 3 through a limiting member. Figure 5As shown, the sliding part 3 includes a support column 311, a slide rail 312, and a mounting frame 313. The support column 311 is vertically mounted on the support plate 111. The slide rail 312 is arranged on the support column 311 along its length. The mounting frame 313 is slidably connected to the slide rail 312 by a plurality of support sliders 318. The support column 311 is also provided with a rack 319, which is parallel to the slide rail 312. The mounting frame 313 is provided with a drive motor 320. The output end of the drive motor 320 meshes with the rack 319 through a gear 321 to drive the mounting frame 313 to move up and down along the support column 311. In this embodiment, the limiting component includes an annular limiting groove 317 formed on the mounting frame 313. An annular snap-fit component adapted to the limiting groove 317 is provided on the side wall of the support ring 316. The snap-fit component can rotate within the limiting groove 317. Specifically, the limiting groove 317 is T-shaped, and the snap-fit component has a T-shaped cross-section that matches the T-shaped annular shape. By setting the adjustment part 2, the entire machine can be flexibly adapted to the drilling needs of multiple directions and angles in complex construction scenarios without additional displacement, improving construction efficiency, achieving bidirectional buffering and position support for angle adjustment, slowing down component movement, reducing wear during device operation, and improving the stability and service life of the device.
[0044] It should be noted that the driving of the drilling assembly 112, the rotary motor 314, the worm gear 216, and the control of the drive motor 320 in this application can all be achieved by using a program set in the control panel and inputting relevant parameters as needed for automated control. This control method can be implemented using existing technologies, such as PLC.
[0045] A specific application of this embodiment is as follows: When in use, the drilling assembly 112 and the drive motor 320 are started. The drive motor 320 drives the gear 321 to roll on the rack 319. Under the meshing action of the gear 321 and the rack 319, the mounting frame 313 is pushed to drive the support slider 318 to move on the slide rail 312. Under the action of the support slider 318 and the slide rail 312, the mounting frame 313 is ensured to move smoothly, thereby driving the semi-cylindrical block 211 to move up and down. The semi-cylindrical block 211 drives the mounting part 214 to move through the adjustment component 21 on it. The mounting part 214 drives the drilling assembly 112 to move, thereby driving the drilling assembly 112 to perform drilling operations. When angle adjustment is required, the motor driving the worm 216 is started. The motor drives the worm 216 to roll on the worm wheel 215. Under the meshing action of the worm 216 and the worm wheel 215, and with the cooperation of the slider 213 and the groove 212, the mounting part 214 performs an arc-shaped movement. The mounting part 214 drives the drilling assembly 112 to adjust the angle. When the mounting part 214 drives the two sliders 213 to move in the two grooves 212 on both sides of the semi-cylindrical block 211, the sliders 213 drive the transmission rod 221 to rotate on the cylindrical rod 227. At this time, the transmission rod 221 pushes the hinge block 226 to move linearly through the slot 225. Since the hinge block 226 is fixedly connected to the rack 223, the hinge block 226 drives the corresponding rack 223 to move. At this time, the rack 223 drives the other rack 223 to move through the gear 222. At this time, the two racks... The spring telescopic rod 224 is compressed and stretched by the 223, causing it to deform and generate elastic force, which slows down the movement speed of the slider 213, thus providing a buffer during the angle adjustment process. When the mounting part 214 stops adjusting the angle, it provides angular support for the mounting part 214. When adjusting the angle in the opposite direction, it provides buffering and support in another direction, reducing wear on the device. The rotary motor 314 is started, and the rotary motor 314 drives the support ring 316 to slide in the limiting groove 317 through the rotating shaft 315. Under the action of the support ring 316 and the limiting groove 317, the support ring 316 smoothly drives the semi-cylindrical block 211 to rotate. The semi-cylindrical block 211 drives the drilling assembly 112 to move through the mounting part 214, adjusting the direction of the drilling assembly 112. With the cooperation of the adjusting part 2 and the sliding part 3, the drilling assembly 112 is moved and the angle is adjusted.
[0046] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0047] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. An angularly adjustable bi-directional sliding jib device comprising a drilling assembly (112) and an adjustment section (2), the drilling assembly (112) being mounted to the adjustment section (2) by an adjustment assembly (21), characterised in that: The adjusting component (21) includes a slide groove (212), and the drilling component (112) can slide along the slide groove (212) under the action of the driving device; The adjustment component (21) is further provided with a buffer component (22), the buffer component (22) comprising: The transmission rod (221), gear one (222), rack one (223), and spring telescopic rod (224) are provided. One end of the transmission rod (221) is connected to the slide groove (212) and can rotate with the sliding of the drilling assembly (112). The other end of the transmission rod (221) is connected to the rack one (223). The rotation of the transmission rod (221) drives the rack one (223) to move linearly. The rack one (223) meshes with the gear one (222). The end of the rack one (223) is connected to the spring telescopic rod (224). The deformation direction of the spring telescopic rod (224) is consistent with the movement direction of the rack one (223).
2. The angularly adjustable bi-directional sliding jib apparatus of claim 1, wherein: Two racks (223) are provided, respectively meshing with the symmetrical side of the gear (222); at least one set of spring telescopic rods (224) on the two racks (223) are arranged opposite to each other.
3. The angularly adjustable bi-directional sliding jib apparatus of claim 1, wherein: The transmission rod (221) is provided with a strip-shaped slot (225), and the rack (223) has a hinge block (226); one end of the hinge block (226) is fixedly connected to the rack (223), and the other end is slidably connected in the strip-shaped slot (225).
4. The angularly adjustable bi-directional sliding jib apparatus of any one of claims 1-3, wherein: The adjustment component (21) includes a semi-cylindrical block (211), both ends of which are provided with the sliding groove (212), the sliding groove (212) being a semi-circle corresponding to the end of the semi-cylindrical block (211); the buffer component (22) is provided on the side wall of the semi-cylindrical block (211).
5. The angularly adjustable bi-directional sliding jib apparatus of claim 4, wherein: It also includes a mounting part (214); a worm gear (215) is arranged along the arc surface of the semi-cylindrical block (211), and a worm (216) adapted to the worm gear (215) is provided on the mounting part (214); the drilling assembly (112) is assembled on the mounting part (214).
6. The angularly adjustable bi-directional sliding jib apparatus of claim 5, wherein: The groove (212) is provided with a corresponding slider (213). One side of the slider (213) is fixedly connected to the mounting part (214), and the other side is hinged to the transmission rod (221).
7. The adjustable angle bidirectional sliding drill arm device according to claim 4, characterized in that: The transmission rod (221) is rotatably mounted on the side wall of the semi-cylindrical block (211) via a cylindrical rod (227); the gear (222) is rotatably mounted on the side wall of the semi-cylindrical block (211).
8. The angularly adjustable bi-directional sliding jib apparatus of claim 4, wherein: The side wall of the semi-cylindrical block (211) has an auxiliary groove (228), and the buffer assembly (22) is accommodated in the auxiliary groove (228); one end of the spring telescopic rod (224) is fixed to the inner wall of the auxiliary groove (228), and the other end is fixedly connected to the rack (223).
9. The angularly adjustable bi-directional sliding jib apparatus of claim 4, wherein: It also includes a sliding part (3) for controlling the lifting and lowering of the drilling assembly (112); a rotary motor (314) is provided on the sliding part (3), and a rotating shaft (315) is provided on the output end of the rotary motor (314). A support ring (316) is fixedly connected to the outer wall of the rotating shaft (315). One side of the support ring (316) is fixedly connected to the semi-cylindrical block (211), and the other side of the support ring (316) is rotatably installed on the sliding part (3) through a limiting member.
10. The angularly adjustable bi-directional sliding jib apparatus of claim 9, wherein: The sliding part (3) includes a support column (311), a slide rail (312), and a mounting frame (313); the slide rail (312) is arranged on the support column (311) along the length direction of the support column (311), and the mounting frame (313) is slidably connected to the slide rail (312) by a plurality of support sliders (318); the support column (311) is also provided with a rack (319), the rack (319) is parallel to the slide rail (312), and the mounting frame (313) is provided with a drive motor (320), the output end of the drive motor (320) meshes with the rack (319) through a gear (321) to drive the mounting frame (313) to move up and down along the support column (311); The limiting member includes an annular limiting groove (317) formed on the mounting bracket (313), and an annular snap-fit member adapted to the limiting groove (317) is provided on the side wall of the support ring (316), and the snap-fit member can rotate within the limiting groove (317).