Novel medium-wind-pressure impactor

Abstract

The utility model relates to the technical field of rock drilling machinery, and discloses a novel medium-wind-pressure impactor which comprises a main body structure and a buffer structure, a connector at the bottom of a base body is inserted into a drill rod clamping sleeve, a connecting rod at the bottom of the drill rod clamping sleeve is reversely inserted into the base body, the base body is rotated, and a fixing groove in the connecting rod is aligned with a positioning groove in the base body. The reset springs apply outward acting force to the fixing blocks, so that the fixing blocks are separated from the fixing grooves to be clamped into the positioning grooves, preliminary limiting and fixing of the impactor drill bit are completed, after preliminary limiting and fixing are completed, the connecting grooves and the clamping grooves are located on the same horizontal plane, and mounting and fixing of the base body and the impactor drill bit are enhanced through the clamping blocks; when the impactor drill bit needs to be replaced, the clamping block is taken out, the base body is rotated, the fixing block retracts into the fixing groove, limiting and fixing of the impactor drill bit can be relieved, a worker can conveniently mount and dismount the impactor drill bit, and the working efficiency of the impactor is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rock drilling machinery, in particular to a novel medium-pressure impactor. Background Art

[0002] The impactor is a kind of high-efficiency drilling equipment introduced from abroad at the end of the last century. It is widely used in seaport construction, reclamation projects, open-pit mines, open-pit earthwork and other projects, and the low-pressure 90 impactor is the most widely used low-pressure impactor. Due to the advantages of low pressure, low requirements for the use of various parts of the impactor, low cost, and one compressor can supply air to several impactors at the same time, this impactor can be found in relevant construction sites across the country, and has a position that cannot be replaced by medium and high pressure impactors. In contrast, the high pressure impactor has the advantages of higher pressure, high requirements for various parts (especially pistons), and fast drilling speed, and has gradually been recognized by the market.

[0003] According to the "A Impactor" disclosed in Chinese Patent Publication No. CN220434632U, the exhaust groove is set so that the space formed by the positioning shoulder and the limiting shoulder of the drill bit against the rear front joint and the positioning shoulder is not closed, so there is no vacuum-like suction on the limiting shoulder. Therefore, the reciprocating movement of the piston is more stable, and the resistance encountered by the piston during movement is smaller. In addition, through the mutual cooperation of the positioning shoulder and the limiting shoulder, the stroke of the piston can be quickly positioned, further improving the stability of the use of the impactor.

[0004] However, the above device has the problem that it is troublesome to replace the impactor drill bit, which affects the work efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a novel medium-pressure impactor to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a novel medium-pressure impactor, comprising a main structure and a buffer structure, wherein the buffer structure is arranged on the top of the main structure;

[0007] The main structure comprises a base body, the top of the base body is fixedly connected with an impact drill bit, the bottom of the base body is fixedly connected with a connector, the top of the connector head is provided with a main air passage, the outer surface of the connector head is provided with a connecting groove, and the outer surface of the connector head is sleeved with a drill clamp.

[0008] Preferably, a mud discharge groove is provided on the top of the base, and the mud discharge groove is provided in a plurality.

[0009] Furthermore, by arranging a plurality of mud discharge grooves, when the impactor drill bit is drilling a hole in the piston, the pressure on the impactor drill bit is reduced, mud and rocks at the front end are discharged, and the drilling efficiency of the impactor piston is improved.

[0010] Preferably, a connecting rod is fixedly connected to the bottom of the clamp sleeve, a fixing groove is provided on the outer surface of the connecting rod, a fixing block is provided inside the fixing groove, and the top of the fixing block is semicircular.

[0011] Preferably, a return spring is fixedly connected to the inner bottom wall of the fixing groove, and the top of the return spring is fixedly connected to the bottom of the fixing block.

[0012] Preferably, a positioning groove is provided on the inner wall of the base, and the shape and size of the positioning groove are matched with the shape and size of the fixing groove.

[0013] Preferably, a clamping groove is provided on the outer surface of the clamp sleeve, the shape and size of the clamping groove are matched with the shape and size of the connecting groove, a clamping block is provided inside the clamping groove, and the connector is clamped with the clamp sleeve via the clamping block.

[0014] Preferably, the buffer structure includes a buffer seat, a damping shock absorber is fixedly connected to the bottom of the buffer seat, a buffer spring is sleeved on the outer surface of the damping shock absorber, the top of the buffer spring is fixedly connected to the bottom of the buffer seat, and the bottom of the buffer spring is fixedly connected to the top of the clamp sleeve.

[0015] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0016] First, the utility model inserts the connecting head at the bottom of the base into the clamping sleeve, reversely inserts the connecting rod at the bottom of the clamping sleeve into the base, rotates the base, aligns the fixing groove on the connecting rod with the positioning groove on the base, and the reset spring applies an outward force to the fixing block, so that the fixing block is separated from the fixing groove and clamped into the positioning groove, thereby completing the initial limit fixation of the impactor drill bit. After the initial limit fixation is completed, the connecting groove and the clamping groove are on the same horizontal plane, and the installation and fixation of the base and the impactor drill bit are strengthened by the clamping block. When the impactor drill bit needs to be replaced, it is only necessary to take out the clamping block and rotate the base to retract the fixing block into the fixing groove, thereby releasing the limit fixation of the impactor drill bit, which is convenient for the staff to install and disassemble the impactor drill bit, thereby improving the working efficiency of the impactor.

[0017] Second, the utility model provides a damping shock absorber and a buffer spring. When the impact drill bit performs piston drilling, the damping shock absorber and the buffer spring cooperate to greatly reduce the impact force generated by the piston drilling, thereby achieving a good shock absorbing effect, increasing the service life of the impact drill bit, and improving the protection of the impactor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the overall cross-sectional structure of the utility model;

[0021] Figure 4 For the utility model Figure 3 A is an enlarged schematic diagram of the structure.

[0022] Among them: 1. Main structure; 101. Base; 102. Impactor drill bit; 103. Connector; 104. Main airway; 105. Connecting groove; 106. Drill sleeve; 107. Mud discharge groove; 108. Connecting rod; 109. Fixed groove; 110. Fixed block; 111. Return spring; 112. Positioning groove; 113. Drill slot; 114. Drill block; 2. Buffer structure; 201. Buffer seat; 202. Damping shock absorber; 203. Buffer spring. DETAILED DESCRIPTION

[0023] 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.

[0024] The utility model provides the following technical solutions:

[0025] Embodiment 1

[0026] See also Figure 1-4 , a novel medium-pressure impactor, comprising a main structure 1 and a buffer structure 2, characterized in that: the buffer structure 2 is arranged on the top of the main structure 1;

[0027] The main structure 1 includes a base 101, a hammer drill bit 102 is fixedly connected to the top of the base 101, a connector 103 is fixedly connected to the bottom of the base 101, a main air channel 104 is opened on the top of the connector 103, a connecting groove 105 is opened on the outer surface of the connector 103, and a clamping sleeve 106 is sleeved on the outer surface of the connector 103.

[0028] A mud discharge groove 107 is formed on the top of the base 101 , and a plurality of mud discharge grooves 107 are provided.

[0029] A connecting rod 108 is fixedly connected to the bottom of the clamp sleeve 106. A fixing groove 109 is formed on the outer surface of the connecting rod 108. A fixing block 110 is disposed inside the fixing groove 109. The top of the fixing block 110 is semicircular.

[0030] A return spring 111 is fixedly connected to the inner bottom wall of the fixing groove 109 , and the top of the return spring 111 is fixedly connected to the bottom of the fixing block 110 .

[0031] A positioning groove 112 is formed on the inner wall of the base 101 , and the shape and size of the positioning groove 112 match those of the fixing groove 109 .

[0032] A clamping groove 113 is formed on the outer surface of the clamping sleeve 106 . The shape and size of the clamping groove 113 match those of the connecting groove 105 . A clamping block 114 is disposed inside the clamping groove 113 . The connector 103 is clamped to the clamping sleeve 106 via the clamping block 114 .

[0033] Through the above technical solution, the connector 103 at the bottom of the base 101 is inserted into the clamp sleeve 106, and the connecting rod 108 at the bottom of the clamp sleeve 106 is reversely inserted into the base 101, and the base 101 is rotated to align the fixing groove 109 on the connecting rod 108 with the positioning groove 112 on the base 101. The reset spring 111 exerts an outward force on the fixing block 110, so that the fixing block 110 is separated from the fixing groove 109 and stuck in the positioning groove 112, thereby completing the initial limit of the impactor drill bit 102. Fixation, after the initial limit fixation is completed, the connecting groove 105 and the clamping groove 113 are on the same horizontal plane, and the installation and fixation of the base 101 and the impactor drill bit 102 are strengthened by the clamping block 114. When the impactor drill bit 102 needs to be replaced, it is only necessary to take out the clamping block 114 and rotate the base 101 to retract the fixing block 110 into the fixing groove 109, so as to release the limit fixation of the impactor drill bit 102, which is convenient for the staff to install and disassemble the impactor drill bit 102, thereby improving the working efficiency of the impactor.

[0034] Embodiment 2

[0035] See also Figure 1-4 , and on the basis of the first embodiment, further obtained: a new type of medium-pressure impactor, including a main structure 1 and a buffer structure 2, characterized in that: the buffer structure 2 is arranged on the top of the main structure 1;

[0036] The main structure 1 includes a base 101, a hammer drill bit 102 is fixedly connected to the top of the base 101, a connector 103 is fixedly connected to the bottom of the base 101, a main air channel 104 is opened on the top of the connector 103, a connecting groove 105 is opened on the outer surface of the connector 103, and a clamping sleeve 106 is sleeved on the outer surface of the connector 103.

[0037] The buffer structure 2 includes a buffer seat 201, a damping shock absorber 202 is fixedly connected to the bottom of the buffer seat 201, a buffer spring 203 is sleeved on the outer surface of the damping shock absorber 202, the top of the buffer spring 203 is fixedly connected to the bottom of the buffer seat 201, and the bottom of the buffer spring 203 is fixedly connected to the top of the clamp sleeve 106.

[0038] Through the above technical solution, by setting the damping shock absorber 202 and the buffer spring 203, when the impact drill bit 102 performs piston drilling, the damping shock absorber 202 and the buffer spring 203 cooperate to greatly reduce the impact force generated by the piston drilling, thereby achieving a good shock absorbing effect, increasing the service life of the impact drill bit 102, and improving the protection of the impactor.

[0039] Although specific embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these specific embodiments without departing from the principles and spirit thereof, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel medium-pressure impactor, comprising a main structure (1) and a buffer structure (2), characterized in that: A buffer structure (2) is provided on the top of the main structure (1); The main structure (1) comprises a base (101), the top of the base (101) is fixedly connected to an impact drill bit (102), the bottom of the base (101) is fixedly connected to a connector (103), the top of the connector (103) is provided with a main air passage (104), the outer surface of the connector (103) is provided with a connecting groove (105), and the outer surface of the connector (103) is sleeved with a drill holder sleeve (106).

2. A novel medium-pressure impactor according to claim 1, characterized in that: The top of the base body (101) is provided with a mud discharge groove (107), and the mud discharge grooves (107) are arranged in a plurality.

3. A novel medium-pressure impactor according to claim 1, characterized in that: The bottom of the clamp sleeve (106) is fixedly connected with a connecting rod (108), the outer surface of the connecting rod (108) is provided with a fixing groove (109), a fixing block (110) is arranged inside the fixing groove (109), and the top of the fixing block (110) is semicircular.

4. A novel medium-pressure impactor according to claim 3, characterized in that: A return spring (111) is fixedly connected to the inner bottom wall of the fixing groove (109), and the top of the return spring (111) is fixedly connected to the bottom of the fixing block (110).

5. A novel medium-pressure impactor according to claim 3, characterized in that: The inner wall of the base body (101) is provided with a positioning groove (112), and the shape and size of the positioning groove (112) are matched with the shape and size of the fixing groove (109).

6. A novel medium-pressure impactor according to claim 1, characterized in that: The outer surface of the clamp sleeve (106) is provided with a clamping groove (113), the shape and size of the clamping groove (113) are adapted to the shape and size of the connecting groove (105), a clamping block (114) is arranged inside the clamping groove (113), and the connecting head (103) and the clamp sleeve (106) are clamped to each other through the clamping block (114).

7. A novel medium-pressure impactor according to claim 1, characterized in that: The buffer structure (2) comprises a buffer seat (201), the bottom of the buffer seat (201) is fixedly connected to a damping shock absorber (202), the outer surface of the damping shock absorber (202) is sleeved with a buffer spring (203), the top of the buffer spring (203) is fixedly connected to the bottom of the buffer seat (201), and the bottom of the buffer spring (203) is fixedly connected to the top of the clamp sleeve (106).

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