Pneumatic jumbolter capable of quickly replacing drill bit

Abstract

The utility model relates to the field of jumbolters, in particular to a pneumatic jumbolter with a drill bit capable of being replaced quickly, a driving block is arranged above a top seat, a driving shaft which penetrates through the top seat and is connected with the driving block is arranged at the output end of a motor, a positioning groove is formed in the driving block, a clamping groove is formed in the inner wall of the positioning groove, and a clamping groove is formed in the clamping groove. A positioning block inserted into the positioning groove is arranged at the lower end of the drill bit, cavities are formed in the two sides of the positioning block, a clamping block matched with the clamping groove is arranged at one end of a first spring, when the drill bit needs to be replaced, a push plate is pressed, a supporting rod can compress a second spring, at the moment, a push rod can eject the clamping block out of the clamping groove, and the drill bit can be replaced. And at the moment, a clamping block compresses a first spring, a third spring resets, a bottom block can eject a positioning block out of a positioning groove, and the drill bit can be conveniently detached.

Description

Technical Field

[0001] The utility model relates to the field of anchor drilling machines, in particular to a pneumatic anchor drilling machine with a quick drill bit replacement function. Background Art

[0002] As we all know, as a new equipment for construction, pneumatic anchor drilling rigs have been promoted for several years. Their advantages such as light weight, high efficiency, energy saving, low noise, low pollution and wide adaptability to strata have been recognized by more and more people. At present, they have been widely used in pile foundation projects of urban construction projects, and are often used when large-scale drilling machines cannot enter the site.

[0003] Generally, anchor drilling rigs use sharp drill bits to break the ground in order to speed up construction efficiency. When the sharp drill bit acts as an impact component, its wear will increase sharply, and the drill bit needs to be replaced frequently. When replacing the existing drill bit, it needs to be pulled by hand, which is easy to cut the human hand and has a low safety factor. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a pneumatic anchor drill with a quick drill bit replacement function.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pneumatic anchor drill with a quick drill bit replacement, comprising a base, a top seat and a drill bit, a lifter and a telescopic rod are fixedly arranged on the upper end of the base, the top seat is fixed to the top of the lifter and the telescopic rod, a motor is fixedly arranged on the lower end of the top seat, the output end of the lifter is connected to the motor, a driving block is arranged above the top seat, a driving shaft penetrating the top seat and connected to the driving block is arranged at the output end of the motor, a positioning groove is arranged inside the driving block, a card groove is arranged on the inner wall of the positioning groove, and a A positioning block is inserted into the positioning slot, and cavities are provided on both sides of the positioning block, a first spring is provided inside the cavity, a card block matching the card slot is provided at one end of the first spring, push plates are provided on both sides of the driving block, a push rod passing through the driving block and the card slot is provided on the push plate, an empty slot is provided on the outer wall of the driving block, a second spring is provided inside the empty slot, support rods inserted into the empty slot and connected to the second spring are provided at both ends of the push plate, a bottom slot is provided at the bottom of the positioning slot, a third spring is provided inside the bottom slot, and a bottom block is provided on the top of the third spring.

[0008] Furthermore, the present invention is improved in that the card slot and the card block are both of trapezoidal structure.

[0009] In order to facilitate the disassembly of the drill bit, the utility model has the following improvements: two side plates are symmetrically arranged at the bottom end of the drill bit, two side blocks are symmetrically arranged on both sides of the driving block, and electric lifting rods are arranged inside the side blocks.

[0010] In order to facilitate replacement of the electric lifting rod, the utility model has the following improvements: a baffle is provided at the bottom of the side block, the baffle is fixed to the bottom of the side block by screws, and the electric lifting rod is located at the upper end of the baffle.

[0011] Furthermore, the present invention has been improved in that the lifter adopts a cylinder and the motor is a servo motor.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the utility model provides a pneumatic anchor drill with a quick drill bit replacement, which has the following beneficial effects:

[0014] The pneumatic anchor drill rig for quick drill bit replacement, when the drill bit needs to be replaced, pressing the push plate can make the support rod compress the second spring, at this time the push rod can push the block out of the slot, at this time the block will compress the first spring, at this time the third spring will reset, can make the bottom block push the positioning block out of the positioning slot, can make the drill bit easy to disassemble, at this time there is no need to pull the drill bit by hand, the safety factor is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0017] Figure 3 For this utility model Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0018] Figure 4 This is a schematic diagram of the internal structure of the positioning groove in the utility model;

[0019] Figure 5 This is a schematic diagram of the internal structure of the card slot in the utility model;

[0020] In the figure: 1. base; 2. lifter; 3. telescopic rod; 4. top seat; 5. motor; 6. drive block; 7. drill bit; 8. positioning slot; 9. positioning block; 10. clamping slot; 11. side block; 12. side plate; 13. electric lifting rod; 14. push plate; 15. push rod; 16. support rod; 17. empty slot; 18. clamping block; 19. bottom slot; 20. bottom block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-5 A pneumatic anchor drill for quick drill bit replacement comprises a base 1, a top seat 4 and a drill bit 7. A lifter 2 and a telescopic rod 3 are fixedly arranged on the upper end of the base 1. The top seat 4 is fixed to the top of the lifter 2 and the telescopic rod 3. A motor 5 is fixedly arranged on the lower end of the top seat 4. The output end of the lifter 2 is connected to the motor 5. A driving block 6 is arranged above the top seat 4. The output end of the motor 5 is provided with a driving shaft that penetrates the top seat 4 and is connected to the driving block 6. A positioning groove 8 is arranged inside the driving block 6. A card groove 10 is arranged on the inner wall of the positioning groove 8. A positioning block 9 inserted into the positioning groove 8 is arranged at the lower end of the drill bit 7. Cavities are arranged on both sides of the positioning block 9. A first spring is arranged inside the cavity. The first spring A card block 18 cooperating with the card slot 10 is provided at one end, push plates 14 are provided on both sides of the driving block 6, and a push rod 15 penetrating the driving block 6 and the card slot 10 is provided on the push plate 14, and an empty slot 17 is provided on the outer wall of the driving block 6, and a second spring is provided inside the empty slot 17, and support rods 16 inserted into the empty slot 17 and connected to the second spring are provided at both ends of the push plate 14, and a bottom slot 19 is provided at the bottom of the positioning slot 8, and a third spring is provided inside the bottom slot 19, and a bottom block 20 is provided on the top of the third spring. In this structure, the pneumatic lifter 2 can make the top seat 4 drive the driving block 6 and the drill bit 7 to rise, and the pneumatic motor 5 can make the driving block 6 drive the drill bit 7 to rotate, so that the drill bit 7 can perform construction on the specified position;

[0023] When the drill bit 7 is installed, the bottom block 20 will compress the third spring. At this time, the clamping block 18 is located inside the clamping groove 10, which can make the positioning block 9 more firmly installed in the positioning groove 8, thereby improving the stability of the drill bit 7 when in use;

[0024] When the drill bit 7 needs to be replaced, pressing the push plate 14 can cause the support rod 16 to compress the second spring. At this time, the push rod 15 can push the block 18 out of the slot 10. At this time, the block 18 will compress the first spring. At this time, the third spring will reset, allowing the bottom block 20 to push the positioning block 9 out of the positioning slot 8, making it easy to disassemble the drill bit 7. At this time, there is no need to pull the drill bit 7 by hand, and the safety factor is high.

[0025] Furthermore, the card slot 10 and the card block 18 may both be trapezoidal structures.

[0026] In this structure, two side panels 12 are symmetrically arranged at the bottom end of the drill bit 7, and two side blocks 11 are symmetrically arranged on both sides of the driving block 6. An electric lifting rod 13 is arranged inside the side block 11, and the electric lifting rod 13 is pneumatically controlled by a wireless remote controller. At this time, the top end of the electric lifting rod 13 can provide an upward force to the side panel 12, so that the drill bit 7 can be easily disassembled.

[0027] When the electric lifting rod 13 is damaged, it is necessary to replace the electric lifting rod 13. A baffle is provided at the bottom of the side block 11, and the baffle is fixed to the bottom of the side block 11 by screws. The electric lifting rod 13 is located at the upper end of the baffle. The screws on the baffle can be loosened to disassemble the baffle, so that the electric lifting rod 13 can be replaced. The structure is simple and the operation is convenient.

[0028] Furthermore, the lifter 2 can be a cylinder, and the motor 5 can be a servo motor.

[0029] In the description of this article, it should be noted that relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pneumatic anchor drill with a quick drill bit replacement, comprising a base (1), a top seat (4) and a drill bit (7), wherein a lifter (2) and a telescopic rod (3) are fixedly arranged on the upper end of the base (1), and the top seat (4) is fixed on the top of the lifter (2) and the telescopic rod (3), and characterized in that: A motor (5) is fixedly arranged at the lower end of the top seat (4), the output end of the lifter (2) is connected to the motor (5), a driving block (6) is arranged above the top seat (4), the output end of the motor (5) is provided with a driving shaft which passes through the top seat (4) and is connected to the driving block (6), a positioning groove (8) is arranged inside the driving block (6), a clamping groove (10) is arranged on the inner wall of the positioning groove (8), a positioning block (9) is arranged at the lower end of the drill bit (7) and is inserted into the positioning groove (8), cavities are arranged on both sides of the positioning block (9), a first spring is arranged inside the cavity, and one end of the first spring is provided with A card block (18) cooperates with the card slot (10), push plates (14) are provided on both sides of the driving block (6), and a push rod (15) is provided on the push plate (14) and passes through the driving block (6) and the card slot (10). An empty groove (17) is provided on the outer wall of the driving block (6), and a second spring is provided inside the empty groove (17). Support rods (16) inserted into the empty groove (17) and connected to the second spring are provided at both ends of the push plate (14), and a bottom groove (19) is provided at the bottom of the positioning groove (8), and a third spring is provided inside the bottom groove (19), and a bottom block (20) is provided at the top of the third spring.

2. The pneumatic anchor drill with quick drill bit change according to claim 1, characterized in that: The card slot (10) and the card block (18) are both trapezoidal structures.

3. A pneumatic anchor drill with a quick drill bit change according to claim 2, characterized in that: Two side plates (12) are symmetrically arranged at the bottom end of the drill bit (7), two side blocks (11) are symmetrically arranged on both sides of the driving block (6), and an electric lifting rod (13) is arranged inside the side block (11).

4. The pneumatic anchor drill with quick drill bit change according to claim 3, characterized in that: A baffle is provided at the bottom of the side block (11), and the baffle is fixed to the bottom of the side block (11) by screws. The electric lifting rod (13) is located at the upper end of the baffle.

5. The pneumatic anchor drill with quick drill bit change according to claim 4, characterized in that: The lifter (2) is a cylinder, and the motor (5) is a servo motor.

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