A drilling rolling assist device

Abstract

This utility model belongs to the field of blasting engineering construction technology and discloses a drilling rolling assist device, including a rolling fixing component and a connecting support component. The connecting support component includes a disc base, and a clamping fixture is connected to the top surface of the disc base. The rolling fixing component includes an outer rolling ring and an inner rolling ring, with several balls arranged between the outer and inner rolling rings. A rubber clamp is connected to the inner wall of the inner rolling ring, and a drill rod hole is opened in the center of the rubber clamp. The diameter of the drill rod hole is a predetermined length smaller than the diameter of the drill rod of the pneumatic drill. The rolling fixing component also includes a closed shell, with a closed shell connected to each of the two ends of the outer rolling ring along its axial direction. The closed shell is fixedly connected to the clamping fixture. During drilling, the rolling fixing component will not cause the pneumatic drill to shift due to vibration, effectively fixing the position of the drill and the air leg. The drill rod can be drilled along the correct drilling path, avoiding deviations and eliminating the need for frequent path adjustments, thereby improving drilling efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of blasting engineering construction technology, specifically relating to a drilling rolling assist device. Background Technology

[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.

[0003] In tunnel excavation or other civil engineering construction, the drill-and-blast method has become a commonly used tunnel excavation method due to its strong adaptability to geological conditions and low excavation cost. The equipment used for drilling has a significant impact on the number of construction personnel, drilling time, personnel safety, and the quality of blast holes, which in turn greatly affects the project cost, project schedule, and project quality.

[0004] Currently, the drilling and blasting method commonly uses pneumatic drills, which are labor-intensive and require workers to operate them for extended periods to control the drilling position and angle, posing significant safety hazards. Furthermore, changing drilling positions often requires assistance from other workers, greatly reducing construction efficiency and increasing project costs.

[0005] The prior art discloses a drilling support device, including a frame structure. The frame structure is fixed at a distance from the object to be drilled by two fixed ropes. A suspension rope is set at the top of the frame structure to suspend the pneumatic drill and air leg. A rigid material fixing device is set in the middle of the frame structure to support the height of the pneumatic drill and air leg.

[0006] The above solution has the following problems: The above solution uses suspension ropes to suspend and position the pneumatic drill and air leg. However, during drilling, the vibration of the pneumatic drill causes it to sway along with the suspension ropes, making it impossible to effectively fix the position of the pneumatic drill and air leg. This can lead to deviations in the drilling path and affect drilling efficiency. Utility Model Content

[0007] In view of this, the purpose of this utility model is to provide a drilling rolling assist device that can solve the technical problem in the prior art of using suspension ropes to suspend the pneumatic drill for positioning, which makes it impossible to effectively fix the position of the pneumatic drill and air leg during construction.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: A drilling rolling assist device includes a rolling fixing component and a connecting support component; the connecting support component includes a disc base, and a clamping fixing device is connected to the top surface of the disc base; The rolling fixing assembly includes an outer rolling ring and an inner rolling ring. Several balls are arranged between the outer rolling ring and the inner rolling ring. A rubber clamp is connected to the inner wall of the inner rolling ring. A drill rod hole is opened in the center of the rubber clamp. The diameter of the drill rod hole is smaller than the drill rod diameter of the pneumatic drill by a set length. The rolling fixing assembly also includes a closed shell, with a closed shell connected to each of the two ends of the outer rolling ring, and the closed shell is fixedly connected to the clamping fixing device.

[0009] Preferably, the sealing shell is an annular piece, the outer diameter of the sealing shell is equal to the outer diameter of the outer rolling ring, and the inner diameter of the sealing shell is smaller than the outer diameter of the inner rolling ring but larger than the inner diameter of the inner rolling ring.

[0010] Preferably, the axial length of the inner rolling ring is less than the axial length of the outer rolling ring, and the diameter of the ball is less than the axial length of the inner rolling ring.

[0011] Preferably, the clamping device includes two sets of clamping blocks, which are symmetrically arranged with respect to the center of the disc base.

[0012] Preferably, each set of clamping blocks includes two clamping blocks arranged opposite each other, and the closed shell is connected to the opposite side of the clamping blocks.

[0013] Preferably, the clamping block is a right-angled triangular prism, and the two right-angled planes of the clamping block are connected to the closed shell and the disc base respectively, and the inclined surface of the clamping block faces away from the rolling fixing component.

[0014] Preferably, the distance between the two sets of clamping blocks is equal to the outer diameter of the inner rolling ring.

[0015] Preferably, the connecting support assembly further includes support legs, and multiple support legs are rotatably connected to the bottom of the outer periphery of the disc base. The number of support legs is greater than or equal to three, and the multiple support legs are distributed in a circular array relative to the center of the disc base.

[0016] Preferably, the support leg includes a hollow fixed tube, a movable tube is sleeved inside the fixed tube, and a bolt hole is opened at the bottom of the fixed tube, with a locking bolt threaded inside the bolt hole.

[0017] Preferably, the disc base, clamping fixture, enclosed shell, outer rolling ring, inner rolling ring, and balls are all made of steel.

[0018] Compared with the prior art, the advantages and positive effects of this utility model are: In this invention, the drill rod of the pneumatic leg drill is inserted into the rubber clamp of the rolling fixing component. During drilling, the rubber clamp and the inner rolling ring rotate together with the outer rolling ring. The outer rolling ring is fixedly connected to the closed shell in the clamping and fixing device of the connecting support component. By supporting and limiting the rolling fixing component through the connecting support component, the pneumatic leg drill will not shift due to vibration when the pneumatic leg drill is drilling. This effectively fixes the position of the drill and the air leg, allowing the drill rod to drill along the correct drilling path, avoiding deviations and eliminating the need for frequent path adjustments, thereby improving drilling efficiency. Attached Figure Description

[0019] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0020] Figure 1 This is an overall schematic diagram of a drilling rolling assist device according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of the connection support component according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the rolling fixing component according to an embodiment of the present utility model; In the picture: 1. Rolling fixing assembly; 11. Outer rolling ring; 12. Inner rolling ring; 13. Ball bearing; 14. Rubber clamp; 15. Drill rod hole; 16. Enclosed shell; 2. Connecting support assembly; 21. Disc base; 22. Clamping fixing device; 221. Clamping block; 23. Support leg; 231. Fixing tube; 232. Moving tube; 233. Locking bolt. Detailed Implementation

[0021] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0022] The present invention will now be described in detail with reference to the accompanying drawings. This embodiment discloses a drilling rolling assist device, such as... Figure 1As shown, it includes a rolling fixing component 1 and a connecting support component 2. The rolling fixing component 1 has a central opening through which the drill rod of the pneumatic drill passes and connects. When the drill rod rotates, the internal components of the rolling fixing component 1 rotate accordingly. The connecting support component 2 supports and limits the rolling fixing component 1, and its height is adjustable, allowing for height adjustment of the pneumatic drill connected to the rolling fixing component 1. By supporting and limiting the rolling fixing component 1, the connecting support component 2 provides stable support for the pneumatic drill during drilling operations, preventing it from shifting due to vibration.

[0023] Specifically, such as Figure 1 , Figure 2 As shown, the connecting support assembly 2 includes a disc base 21, and a clamping fixture 22 is fixedly connected to the top surface of the disc base 21; the rolling fixing assembly 1 is fixedly connected in the clamping fixture 22. It can be understood that the clamping fixture 22 plays a limiting role for the rolling fixing assembly 1, and the disc base 21 plays a supporting role for the rolling fixing assembly 1.

[0024] like Figure 1 , Figure 3 As shown, the rolling fixing assembly 1 includes an outer rolling ring 11 and an inner rolling ring 12. The inner rolling ring 12 is coaxially arranged with the outer rolling ring 11, and the outer rolling ring 11 is sleeved on the outside of the inner rolling ring 12. The inner diameter of the outer rolling ring 11 is larger than the outer diameter of the inner rolling ring 12. A groove is formed on the inner wall of the outer rolling ring 11, and a groove is also formed on the outer wall of the inner rolling ring 12. A plurality of balls 13 are arranged between the outer rolling ring 11 and the inner rolling ring 12. The balls 13 are installed between the groove on the inner wall of the outer rolling ring 11 and the groove on the outer wall of the inner rolling ring 12, so that the inner rolling ring 12 can rotate relative to the outer rolling ring 11.

[0025] like Figure 3 As shown, the inner wall of the inner rolling ring 12 is fixedly connected to the rubber clamp 14, that is, the rubber clamp 14 and the inner rolling ring 12 can rotate relative to the outer rolling ring 11.

[0026] like Figure 3 As shown, a drill rod hole 15 is formed in the center of the rubber clamp 14. The diameter of the drill rod hole 15 is a set length smaller than the diameter of the drill rod of the pneumatic drill. After the drill rod passes through the drill rod hole 15, the rubber clamp 14 clamps the drill rod through deformation. When the drill rod rotates, it can drive the rubber clamp 14 to rotate, thereby driving the inner rolling ring 12 to rotate relative to the outer rolling ring 11. In this embodiment, the diameter of the drill rod hole 15 is 5mm smaller than the diameter of the drill rod of the pneumatic drill.

[0027] like Figure 1 , Figure 3As shown, the rolling fixing assembly 1 also includes a closed shell 16. A closed shell 16 is fixedly connected to each of the two axial ends of the outer rolling ring 11. The closed shell 16 is fixedly connected to the clamping fixing device 22, thereby fixing the outer rolling ring 11, the closed shell 16 and the clamping fixing device 22. This ensures that the inner rolling ring 12 can rotate relative to the outer rolling ring 11 while the rolling fixing assembly 1 is fixedly connected to the clamping fixing device 22.

[0028] It should be explained that, in this embodiment, the drill rod of the pneumatic leg drill is clamped in the rubber clamp 14 of the rolling fixing assembly 1. When the drill rod rotates, the rubber clamp 14 and the inner rolling ring 12 can rotate relative to the outer rolling ring 11. Under the restriction of the clamping and fixing device 22, the rolling fixing assembly 1 will not move with the pneumatic leg drill due to vibration during drilling. During drilling, with the cooperation of the rolling fixing assembly 1 and the connecting support assembly 2, the pneumatic leg drill will not shake, which can effectively fix the position of the drill and the air leg. The drill rod can drill along the correct drilling path, avoiding deviation and eliminating the need for frequent path adjustments, thereby improving drilling efficiency.

[0029] like Figure 3 As shown, in this embodiment, the sealing shell 16 is an annular piece. The outer diameter of the sealing shell 16 is equal to the outer diameter of the outer rolling ring 11. The inner diameter of the sealing shell 16 is smaller than the outer diameter of the inner rolling ring 12 but larger than the inner diameter of the inner rolling ring 12. The axial length of the inner rolling ring 12 is smaller than the axial length of the outer rolling ring 11, and the diameter of the ball 13 is smaller than the axial length of the inner rolling ring 12. The purpose of this design is that the sealing shell 16 can fix the outer rolling ring 11, protect the ball 13, and prevent the sealing shell 16 from contacting the inner rolling ring 12.

[0030] like Figure 1 , Figure 2 As shown, the clamping and fixing device 22 includes two sets of clamping blocks 221, which are symmetrically arranged relative to the center of the circular base 21; each set of clamping blocks 221 includes two clamping blocks 221, which are arranged opposite to each other. Figure 1 As shown, the closed shells 16 at both ends of the rolling fixing assembly 1 are fixedly connected to the opposite sides of the clamping block 221, and the clamping fixing device 22 fixes the rolling fixing assembly 1 in the axial, horizontal and vertical directions.

[0031] like Figure 1 , Figure 2 As shown, the clamping block 221 is a right-angled triangular prism. The two right-angled planes of the clamping block 221 are fixedly connected to the closed shell 16 and the disc base 21, respectively. The inclined surface of the clamping block 221 is set away from the rolling fixing component 1. The use of a right-angled triangular prism with the inclined surface facing away from the rolling fixing component 1 is to enhance the axial support of the clamping block 221.

[0032] like Figure 1 , Figure 2 As shown, the distance between the two sets of clamping blocks 221 is equal to the outer diameter of the inner rolling ring 12, which is a reserved channel for the drill rod of the pneumatic drill to pass through the rubber clamp 14.

[0033] like Figure 1 , Figure 2 As shown, the connecting support assembly 2 also includes support legs 23. Multiple support legs 23 are rotatably connected to the bottom of the outer periphery of the disc base 21. It can be understood that in order to ensure the support effect of the support legs 23 on the disc base 21, the number of support legs 23 is greater than or equal to three, and the multiple support legs 23 are distributed in a circular array relative to the center of the disc base 21.

[0034] Multiple pairs of lugs can be welded to the bottom of the outer periphery of the disc base 21. Identical pin holes are made on the lugs and the top of the support leg 23. The top of the support leg 23 is installed between a pair of lugs and the pin holes are aligned. A pin is inserted into the pin hole to make the support leg 23 rotatably connected to the disc base 21.

[0035] like Figure 1 , Figure 2 As shown, the support leg 23 includes a fixed tube 231, which is a hollow tube. A movable tube 232 is fitted inside the fixed tube 231 (the two are slidably connected). A bolt hole is opened at the bottom of the fixed tube 231, and a locking bolt 233 is threaded into the bolt hole. By pulling the movable tube 232 out of the fixed tube 231, the length of the support leg 23 can be adjusted. Tightening the locking bolt 233 will compress the movable tube 232, preventing relative displacement between the movable tube 232 and the fixed tube 231.

[0036] In this embodiment, a foot pedal is installed at the bottom of the movable tube 232, which makes it easy for the operator to step on the foot pedal to pull the movable tube 232 out of the fixed tube 231.

[0037] Understandably, due to the uneven ground during tunnel construction, the multiple support legs 23 of the connecting support component 2 can open at different angles relative to the disc base 21 to support the disc base 21. The lengths of the multiple support legs 23 are adjusted sequentially to ensure that the disc base 21 is in a horizontal state. Then, the drill rod of the pneumatic leg drill is installed in the rubber clamp, so that the device of this embodiment can support the pneumatic leg drill. During drilling, with the cooperation of the rolling fixing component 1 and the connecting support component 2, the pneumatic leg drill will not shake, which can effectively fix the position of the drill and the air leg and improve the drilling efficiency.

[0038] In this embodiment, the disc base 21 is made of steel, which has excellent strength and rigidity, and can support the pneumatic leg drill. The clamping and fixing device 22 and the closed shell 16 are also made of steel. In the above-mentioned fixed connection, the clamping and fixing device 22 and the closed shell 16 are welded together, the disc base 21 and the clamping and fixing device 22 are welded together, and the outer rolling ring 11 and the closed shell 16 are welded together.

[0039] In this embodiment, the outer rolling ring 11, the inner rolling ring 12, and the ball 13 are all made of steel, which has high strength and can play a supporting role. The rubber clamp 14 is made of rubber, and the outer wall of the rubber clamp 14 is fixedly connected to the inner wall of the inner rolling ring 12 by bonding.

[0040] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A drilling rolling assist device, characterized in that, It includes a rolling fixing component and a connecting support component; the connecting support component includes a disc base, and a clamping fixing device is connected to the top surface of the disc base; The rolling fixing assembly includes an outer rolling ring and an inner rolling ring. A number of balls are arranged between the outer rolling ring and the inner rolling ring. A rubber clamp is connected to the inner wall of the inner rolling ring. A drill rod hole is opened in the center of the rubber clamp. The diameter of the drill rod hole is a set length smaller than the diameter of the drill rod of the pneumatic drill. The rolling fixing assembly also includes a closed shell, with a closed shell connected to each of the two ends of the outer rolling ring along the axial direction, and the closed shell is fixedly connected to the clamping and fixing device.

2. The drilling rolling assist device as described in claim 1, characterized in that, The closed shell is an annular piece. The outer diameter of the closed shell is equal to the outer diameter of the outer rolling ring, and the inner diameter of the closed shell is smaller than the outer diameter of the inner rolling ring but larger than the inner diameter of the inner rolling ring.

3. The drilling rolling assist device as described in claim 1, characterized in that, The axial length of the inner rolling ring is less than the axial length of the outer rolling ring, and the diameter of the ball is less than the axial length of the inner rolling ring.

4. The drilling rolling assist device as described in claim 1, characterized in that, The clamping device includes two sets of clamping blocks, which are arranged symmetrically with respect to the center of the disc base.

5. The drilling rolling assist device as described in claim 4, characterized in that, Each set of clamping blocks includes two clamping blocks arranged opposite each other, and the enclosed shell is connected to the opposite side of the clamping blocks.

6. The drilling rolling assist device as described in claim 4, characterized in that, The clamping block is a right-angled triangular prism. The two right-angled planes of the clamping block are connected to the closed shell and the disc base, respectively. The inclined surface of the clamping block faces away from the rolling fixing assembly.

7. The drilling rolling assist device as described in claim 4, characterized in that, The distance between the two sets of clamping blocks is equal to the outer diameter of the inner rolling ring.

8. The drilling rolling assist device as described in claim 1, characterized in that, The connecting support assembly also includes support legs. Multiple support legs are rotatably connected to the bottom of the outer periphery of the disc base. The number of support legs is greater than or equal to three, and the multiple support legs are distributed in a circular array relative to the center of the disc base.

9. A drilling rolling assist device as described in claim 8, characterized in that, The support leg includes a hollow fixed tube, inside which a movable tube is sleeved. A bolt hole is opened at the bottom of the fixed tube, and a locking bolt is threaded inside the bolt hole.

10. A drilling rolling assist device as described in claim 1, characterized in that, The disc base, clamping fixture, enclosed shell, outer rolling ring, inner rolling ring, and balls are all made of steel.

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