A rock drilling device with a folding boom structure used in a rock drilling rig

Abstract

The present invention discloses a rock drilling device with a folding boom structure for use in a rock drilling trolley, relating to the technical field of rock drilling devices, including a telescopic boom, the telescopic end of the telescopic boom being rotatably connected to a support frame, the support frame being slidably connected to a guide frame in the left-right direction, the lower side of the guide frame being fixedly connected to racks symmetrically distributed along the front and rear of the guide frame, and the upper side of the guide frame being slidably connected to a drilling boom in the left-right direction. In the process of controlling the rotation of the support frame, if the guide frame directly rotates, it will collide with the rock mass. The guide frame is controlled to move by a motor to achieve the effect of adjusting the turning radius of the guide frame, so that when the telescopic boom encounters a rock mass during rotation, it can adaptively adjust its length to avoid collision, thereby allowing it to continue to rotate further. After adjustment, the guide frame is locked to prevent the output shaft from rotating arbitrarily after the motor is turned off, causing the guide frame to move arbitrarily.

Description

Technical Field

[0001] The present invention relates to the technical field of rock drilling devices, and in particular to a rock drilling device with a folding boom structure used in a rock drilling trolley. Background Art

[0002] The rock drilling device with a folding boom structure is a device designed specifically for narrow and complex terrain. Its feature is that the boom can be folded for easy transportation and operation. The device uses a hydraulic system to drive the boom to extend and fold, and is equipped with high-precision rock drilling tools. It can perform efficient and accurate rock drilling operations at various angles and positions. It is widely used in mining, tunnel construction and other fields.

[0003] When performing right-angle turning drilling operations, there are usually rock masses that need to be drilled and blasted. These protruding rock masses not only hinder the normal turning path of the drill rig and are prone to collisions, but also significantly increase the complexity and difficulty of the operation, resulting in reduced construction efficiency and increased operational risks.

[0004] Based on the above situation, the present invention proposes a rock drilling device with a folding boom structure for use in a rock drilling rig. Summary of the Invention

[0005] In order to overcome the disadvantage that a rock drilling device easily hits a protruding rock mass when turning, the present invention provides a rock drilling device with a folding boom structure for use in a rock drilling trolley.

[0006] The cam is connected to the guide frame by a telescopic arm, and the guide frame is fixed with a rack symmetrically distributed along the front and rear of the guide frame. The upper side of the guide frame is slidably connected to the drilling arm frame along the left and right directions. The middle of the support frame is fixed with a motor symmetrically distributed along the front and rear of the support frame. The output shaft of the motor is splined to a rotating rod, and the output shaft of the motor is rotatably connected to a gear, and the rotating rod is engaged with an adjacent gear, so that the motor drives the rotating rod to rotate synchronously. The rotating rod drives the gear to rotate when engaged, and the rotating rod rotates idly when not engaged. The gear is meshed with the adjacent rack. An electric push rod is fixed to the front side of the support frame, and the telescopic end of the electric push rod is fixed with a clamping frame, which is slidably connected to the support frame, and the guide frame is provided with clamping holes evenly arranged in the transverse direction, and the clamping frame moves backward and is inserted into the corresponding clamping hole.

[0007] Furthermore, it also includes a connecting plate, which is fixedly connected to the card frame, and the connecting plate has a sliding groove. The support frame is slidably connected to the guide frame, and the guide frame is slidably connected to the sliding groove of the connecting plate. The connecting plate is extruded and fitted with the guide frame, and the support frame is slidably connected to a clamping cylinder symmetrically distributed along the support frame, and the clamping cylinder is extruded and fitted with the guide frame, and the clamping cylinder is inserted into the corresponding clamping hole.

[0008] Furthermore, one side of the guide frame is provided with upper inclined grooves symmetrically distributed along the guide frame, and the cartridge is slidably connected to the upper inclined grooves adjacent to the guide frame.

[0009] Furthermore, a lower inclined groove is formed on the other side of the guide frame, and the connecting plate is slidably connected to the lower inclined groove of the guide frame.

[0010] Furthermore, it also includes a tension spring corresponding to the rotating rod, the two ends of the tension spring are respectively fixed to the adjacent rotating rod and the motor, the clamping frame and the clamping cylinder are fixed with relative fixed blocks, and a pull frame is slidably connected between the two fixed blocks of the clamping frame and between the fixed blocks of the two clamping cylinders, and the pull frame is rotationally connected to the adjacent rotating rod.

[0011] Furthermore, it also includes a sealing plate symmetrically distributed along the rack, the sealing plate is slidably connected to the support frame, the sealing plate is squeezed together with the adjacent rack, the sealing plate is used to scrape out the rock ash in the rack gap, and a spring is fixed between the sealing plate and the support frame.

[0012] Furthermore, it also includes a material guide plate corresponding to the sealing plate, and the material guide plate is fixed to the outer side of the corresponding sealing plate.

[0013] Furthermore, it also includes a telescopic baffle symmetrically distributed along the rack, the telescopic side of the telescopic baffle is fixedly connected to the support frame, and the fixed side of the telescopic baffle is fixedly connected to the guide frame.

[0014] The beneficial effect of the present invention is that when controlling the rotation of the support frame, if the guide frame rotates directly, it will collide with the rock. The movement of the guide frame is controlled by the motor to achieve the effect of adjusting the turning radius of the guide frame, so that when the telescopic arm encounters the rock during rotation, it can adaptively adjust the length to avoid it and avoid collision, so that it can continue to rotate further, and the guide frame is locked after adjustment to prevent the output shaft from rotating arbitrarily after the motor is turned off, causing the guide frame to move arbitrarily.

[0015] The present invention fixes the guide frame from the front and rear sides respectively through the clamping frame and the clamping cylinder, thereby avoiding imbalance of the guide frame due to unilateral fixation and improving stability during rock drilling.

[0016] The present invention uses a pulling frame to pull the rotating rod on it to slide relative to the output shaft of the motor, so that the rotating rod and the adjacent gear are no longer engaged. Therefore, after the guide frame is fixed, even if the motor is started by mistake, the output shaft of the motor only drives the rotating rod to rotate idly, and does not drive the gear to rotate, thereby avoiding the phenomenon of tooth collision between the rack and the gear due to accidental contact with the motor during rock drilling.

[0017] When the rack moves to adjust the guide frame, the sealed plate is used to scrape out the rock dust in the rack gap. The scraped dust will slide forward and downward and backward along the bottom of the guide plate to the ground, achieving the effect of automatically cleaning the rack gap and preventing the rack gap from being blocked and affecting its meshing action with the gear.

[0018] The present invention utilizes the telescopic baffles on the left and right sides to adaptively telescope as the support frame moves left and right, so that only the clamping holes where the support frame is located are opened, and the clamping holes at other locations are closed by the telescopic baffles in real time to prevent rock ash from blocking the clamping holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the support frame, guide frame, motor and other components of the present invention.

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the components such as the rotating rod, gear and electric push rod of the present invention.

[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the motor, rotating rod and gear separated from each other in the present invention.

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the components such as the clamping frame, connecting plate and guide frame of the present invention.

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the connecting plate, guide frame and clamping cylinder of the present invention.

[0025] Figure 7 It is a three-dimensional structural diagram of the components such as the rotating rod, the fixing block and the pulling frame of the present invention.

[0026] Figure 8 This is a schematic diagram of the three-dimensional structure of the present invention with the fixed block, tension frame, tension spring and other components separated.

[0027] Figure 9 It is a schematic diagram of the three-dimensional structure of the sealing plate, spring, guide plate and other components of the present invention.

[0028] Figure 10 It is a schematic diagram of the three-dimensional structure of the guide frame, sealing plate, telescopic baffle and other components of the present invention.

[0029] The names and serial numbers of the parts in the figure are: 1_telescopic arm, 2_support frame, 3_guide frame, 301_rack, 4_drilling arm, 5_motor, 6_rotating rod, 7_gear, 8_electric push rod, 9_clamping frame, 901_clamping hole, 10_connecting plate, 11_guide frame, 12_clamping cylinder, 13_fixing block, 14_pull frame, 15_tension spring, 16_sealing plate, 17_spring, 18_guide plate, 19_telescopic baffle. DETAILED DESCRIPTION

[0030] The preferred technical solutions of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] Example 1: A rock drilling device with a folding boom structure used in a rock drilling rig, such as Figures 1-4 As shown, it includes a telescopic arm 1, the telescopic end of the telescopic arm 1 is rotatably connected to the support frame 2, the support frame 2 is slidably connected to the guide frame 3 along the left and right directions, the lower side of the guide frame 3 is fixed with a rack 301 symmetrically distributed along the front and back of the guide frame 3, the upper side of the guide frame 3 is slidably connected to the drilling arm 4 along the left and right directions, the middle of the support frame 2 is fixed with a motor 5 symmetrically distributed along the front and back of the support frame 2, the output shaft of the motor 5 is splined with a rotating rod 6, the output shaft of the motor 5 is rotatably connected with a gear 7, the rotating rod 6 is engaged with the adjacent gear 7, so that the motor 5 drives the rotating rod 6 to rotate synchronously, the rotating rod 6 drives the gear 7 to rotate when engaged, and the rotating rod 6 rotates idly when not engaged, and the gear 7 is meshed with the adjacent rack 301, an electric push rod 8 is fixed to the front side of the support frame 2, the telescopic end of the electric push rod 8 is fixed with a clamping frame 9, the clamping frame 9 is slidably connected to the support frame 2, the guide frame 3 is opened with clamping holes 901 evenly arranged along the horizontal direction, and the clamping frame 9 moves backward and is inserted into the corresponding clamping hole 901.

[0032] When using this device for rock drilling, the telescopic boom 1 is controlled to extend and retract, and the support frame 2 is controlled to rotate and swing, and then the drilling boom 4 is controlled to slide and extend along the guide frame 3 until it contacts the rock mass, and then rock drilling can begin. In the process of controlling the rotation of the support frame 2, if the guide frame 3 directly rotates and hits the rock mass, the motor 5 is started, and the output shaft of the motor 5 drives the rotating rod 6 to rotate, thereby driving the gear 7 to rotate, and then driving the rack 301 to move to the side close to the telescopic boom 1, and then driving the guide frame 3 to move to the side close to the telescopic boom 1, so as to adjust the turning radius of the guide frame 3. The effect is that the telescopic arm 1 can adaptively adjust its length to avoid the rock when encountering it during rotation, avoiding collision, so that it can continue to rotate further. After adjusting the avoidance distance, the motor 5 is turned off, and the electric push rod 8 is controlled to extend to drive the clamping frame 9 to move backward and insert it into the clamping hole 901 corresponding to the guide frame 3, thereby locking the guide frame 3 to prevent the output shaft from rotating arbitrarily after the motor 5 is turned off, causing the guide frame 3 to move arbitrarily. When the turning radius needs to be adjusted again, the electric push rod 8 is controlled to shorten, so that the clamping frame 9 moves forward and pulls out of the clamping hole 901.

[0033] like Figure 5 and Figure 6 As shown, it also includes a connecting plate 10, which is fixed to the card frame 9, and a sliding groove is opened at the rear of the connecting plate 10. The rear side of the support frame 2 is slidably connected to the guide frame 11 in the up and down directions. The guide frame 11 is slidably connected to the sliding groove of the connecting plate 10, and the upper side of the guide frame 11 is provided with an upper inclined groove symmetrically distributed along the left and right of the guide frame 11, and the lower side of the guide frame 11 is provided with a lower inclined groove. The rear part of the connecting plate 10 is slidably connected to the lower inclined groove of the guide frame 11, so that the connecting plate 10 moves backward and pushes the guide frame 11 to move upward. The middle of the support frame 2 is slidably connected to the card cylinder 12 symmetrically distributed along the left and right of the support frame 2 in the front and back directions. The card cylinder 12 is slidably connected to the upper inclined groove adjacent to the guide frame 11, and the card cylinder 12 moves forward and is inserted into the corresponding card hole 901.

[0034] When the bracket 9 moves backward and is inserted into the clamping hole 901, the bracket 9 simultaneously drives the connecting plate 10 to move backward, the connecting plate 10 squeezes the guide frame 11 to move upward, and the guide frame 11 squeezes the cartridge 12 to move forward and insert it into the corresponding clamping hole 901. In this way, the bracket 9 and the cartridge 12 respectively fix the guide frame 3 from the front and back sides, avoiding unilateral fixation and imbalance of the guide frame 3, and improving the stability during rock drilling. When the bracket 9 moves forward and is pulled out of the clamping hole 901, the bracket 9 simultaneously drives the connecting plate 10 forward, the connecting plate 10 drives the guide frame 11 to move downward, and the guide frame 11 drives the cartridge 12 to move backward and pull out of the clamping hole 901.

[0035] Example 2: Based on Example 1, Figure 7 and Figure 8 As shown, it also includes a tension spring 15 corresponding to the rotating rod 6, and the two ends of the tension spring 15 are respectively fixed to the adjacent rotating rod 6 and the motor 5. The bracket 9 and the clamping cylinder 12 are both fixed with relative fixed blocks 13. A pull rack 14 is slidably connected between the two fixed blocks 13 of the bracket 9 and between the fixed blocks 13 of the two clamping cylinders 12. The pull rack 14 is rotationally connected to the adjacent rotating rod 6.

[0036] When the bracket 9 and the cartridge 12 are inserted into the clamping hole 901, the bracket 9 and the cartridge 12 simultaneously drive the fixed block 13 thereon to move in the same direction. The fixed block 13 first slides relative to the adjacent pull frame 14, and then drives the pull frame 14 to move together, so that the pull frame 14 pulls the rotating rod 6 thereon to slide relative to the output shaft of the motor 5, and the tension spring 15 is stretched, so that the rotating rod 6 and the adjacent gear 7 are no longer engaged. In this way, after the guide frame 3 is fixed, even if the motor 5 is started by mistake, the output shaft of the motor 5 will only drive the rotating rod 6 to rotate idly, and will not drive the gear 7 to rotate, avoiding the tooth-clamping phenomenon between the rack 301 and the gear 7 due to accidental contact with the motor 5 during rock drilling. When the bracket 9 and the cartridge 12 are pulled out of the clamping hole 901, the bracket 9 and the cartridge 12 simultaneously drive the fixed block 13 thereon to move in the same direction and reset. The reset of the tension spring 15 drives the rotating rod 6 to slide in the opposite direction relative to the output shaft of the motor 5, thereby driving the pull frame 14 to move in the opposite direction and reset.

[0037] Example 3: Based on Example 2, Figure 9 As shown, it also includes a sealed plate 16 symmetrically distributed along the rack 301. The sealed plate 16 is slidably connected to the support frame 2. The lower part of the sealed plate 16 is squeezed and fitted with the adjacent rack 301. The sealed plate 16 is used to scrape out the rock ash in the gap of the rack 301. A spring 17 is fixed between the sealed plate 16 and the support frame 2. A guide plate 18 is fixed to the outer side of the sealed plate 16. The bottom of the guide plate 18 is inclined outward and downward to guide the scraped rock ash to the ground.

[0038] The dust generated during rock drilling will fall into the gap of the rack 301. When the rack 301 moves to the left or right, it will squeeze the sealing plates 16 on the left and right sides to move upward intermittently, and the spring 17 will be intermittently compressed and reset. During this process, the sealing plates 16 will scrape out the rock dust in the gap of the rack 301. The scraped dust will slide forward and downward and backward along the bottom of the guide plate 18 to the ground, achieving the effect of automatically cleaning the gap of the rack 301, and preventing the gap of the rack 301 from being blocked and affecting its meshing action with the gear 7.

[0039] like Figure 10 As shown, it also includes telescopic baffles 19 symmetrically distributed along the rack 301 , the telescopic side of the telescopic baffles 19 is fixedly connected to the support frame 2 , and the fixed side of the telescopic baffles 19 is fixedly connected to the guide frame 3 .

[0040] The telescopic baffles 19 on the left and right sides are adaptively extended and retracted as the support frame 2 moves left and right, so that only the card holes 901 where the support frame 2 is located are opened, and the card holes 901 in other places are closed by the telescopic baffles 19 in real time to prevent rock ash from blocking the card holes 901.

[0041] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art from this disclosure that various changes or modifications may be made to the present invention without departing from the principles and spirit of the invention as defined in the claims. Therefore, the detailed description of the disclosed embodiments is intended to be illustrative only and not to limit the present invention, which is to be defined by the claims.

Claims

1. A rock drilling device with a folding boom structure used in a rock drilling rig, characterized in that it includes: A telescopic arm (1) is provided, wherein the telescopic end of the telescopic arm (1) is rotatably connected to a support frame (2), the support frame (2) is slidably connected to a guide frame (3), the guide frame (3) is fixedly connected to a rack (301) symmetrically distributed along the guide frame (3), the guide frame (3) is slidably connected to a drilling arm (4), the support frame (2) is fixedly connected to a motor (5) symmetrically distributed along the support frame (2), the output shaft of the motor (5) is spline-connected to a rotating rod (6), and the output of the motor (5) is The shaft is rotatably connected to a gear (7), the gear (7) is meshed with the adjacent rack (301), the rotating rod (6) is engaged with the adjacent gear (7), one side of the support frame (2) is fixedly connected to an electric push rod (8), the telescopic end of the electric push rod (8) is fixedly connected to a clamping frame (9), the clamping frame (9) is slidably connected to the support frame (2), the guide frame (3) is provided with clamping holes (901) evenly arranged in the transverse direction, and the clamping frame (9) is moved and inserted into the corresponding clamping hole (901); It also includes a connecting plate (10), the connecting plate (10) is fixedly connected to the card frame (9), the connecting plate (10) is provided with a sliding groove, the support frame (2) is slidably connected to the guide frame (11), the guide frame (11) is slidably connected to the sliding groove of the connecting plate (10), the connecting plate (10) and the guide frame (11) are extruded and matched, the support frame (2) is slidably connected to a clamping cylinder (12) symmetrically distributed along the support frame (2), the clamping cylinder (12) is extruded and matched to the guide frame (11), and the clamping cylinder (12) is inserted into the corresponding clamping hole (901); One side of the guide frame (11) is provided with an upper inclined groove symmetrically distributed along the guide frame (11), and the cartridge (12) is slidably connected to the upper inclined groove adjacent to the guide frame (11); A lower inclined groove is formed on the other side of the guide frame (11), and the connecting plate (10) is slidably connected to the lower inclined groove of the guide frame (11); It also includes a tension spring (15) corresponding to the rotating rod (6), and the two ends of the tension spring (15) are respectively fixed to the adjacent rotating rod (6) and the motor (5), and the clamping frame (9) and the clamping cylinder (12) are fixed with relative fixed blocks (13). A pull frame (14) is slidably connected between the two fixed blocks (13) of the clamping frame (9) and between the two fixed blocks (13) of the clamping cylinder (12), and the pull frame (14) is rotationally connected to the adjacent rotating rod (6).

2. A rock drilling device with a folding boom structure used in a rock drilling rig according to claim 1, characterized in that: It also includes a sealing plate (16) symmetrically distributed along the rack (301), the sealing plate (16) is slidably connected to the support frame (2), the sealing plate (16) is squeezed and matched with the adjacent rack (301), the sealing plate (16) is used to scrape out the rock ash in the gap of the rack (301), and a spring (17) is fixed between the sealing plate (16) and the support frame (2).

3. A rock drilling device with a folding boom structure used in a rock drilling rig according to claim 2, characterized in that: It also includes a material guide plate (18) corresponding to the sealing plate (16), and the material guide plate (18) is fixed to the outer side of the corresponding sealing plate (16).

4. A rock drilling device with a folding boom structure used in a rock drilling rig according to claim 3, characterized in that: It also includes a telescopic baffle (19) symmetrically distributed along the rack (301), wherein the telescopic side of the telescopic baffle (19) is fixedly connected to the support frame (2), and the fixed side of the telescopic baffle (19) is fixedly connected to the guide frame (3).

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