阅读说明：本技术 一种轻便深孔磨削机 (Portable deep hole grinding machine ) 是由 杨日平 朱自佳 杨湘龙 于 2021-10-11 设计创作，主要内容包括：本发明涉及到一种轻便深孔磨削机,包括磨削装置,内部设有第一通道的操纵装置,与所述操纵装置连接的拉动装置,所述拉动装置包括内部设有第二通道的配气杆,套设于所述配气杆上的活塞,所述活塞与所述配气杆之间设有第一气室和第二气室,所述磨削装置包括与所述拉动装置连接的安装组件,以及设于所述安装组件周向外壁上的油石条,高压气体从第一通道输送至第二通道,所述第二通道与所述第一气室、所述第二气室连通,所述第一气室和所述第二气室内部的气压变化,以使得所述活塞上下往复移动带动所述磨削装置上下移动。本申请提供的轻便深孔磨削机,能适应长度较长的外缸内孔磨削,且加工出的内孔同轴度好。(The invention relates to a portable deep hole grinding machine which comprises a grinding device, an operating device and a pulling device, wherein the operating device is internally provided with a first channel, the pulling device is connected with the operating device, the pulling device comprises a gas distribution rod, a piston and a oilstone strip, the gas distribution rod is internally provided with a second channel, the piston is sleeved on the gas distribution rod, a first gas chamber and a second gas chamber are arranged between the piston and the gas distribution rod, the grinding device comprises a mounting assembly and the oilstone strip, the mounting assembly is connected with the mounting assembly, the oilstone strip is arranged on the circumferential outer wall of the mounting assembly, high-pressure gas is conveyed to the second channel from the first channel, the second channel is communicated with the first gas chamber and the second gas chamber, and the gas pressure in the first gas chamber and the second gas chamber changes so that the piston can move up and down in a reciprocating mode to drive the grinding device to move up and down. The application provides a light deep hole grinding machine can adapt to the longer outer jar hole grinding of length, and the hole axiality of processing out is good.)

1. A portable deep hole grinding machine is characterized by comprising a grinding device (1),

an operating device (2) provided with a first channel (211) inside;

a pulling device (3) connected to the actuating device (2);

the pulling device (3) comprises a gas distribution rod (31) with a second channel (311) arranged inside;

a piston (32) sleeved on the gas distribution rod (31), and a first gas chamber (33) and a second gas chamber (34) are arranged between the piston (32) and the gas distribution rod (31);

the grinding device (1) comprises a mounting assembly connected with the pulling device (3) and an oilstone strip (11) arranged on the circumferential outer wall of the mounting assembly;

high-pressure gas is conveyed to a second channel (311) from a first channel (211), the second channel (311) is communicated with the first air chamber (33) and the second air chamber (34), and the air pressure inside the first air chamber (33) and the second air chamber (34) is changed, so that the piston (32) can move up and down in a reciprocating mode to drive the grinding device (1) to move up and down.

2. Portable deep hole grinding machine according to claim 1, characterized in that said grinding device (1) comprises a conical shaft (12) fixedly connected to the end of said gas distribution rod (31);

a first cone (121) and a second cone (122) are arranged on the outer wall of the conical shaft (12), and the first cone (121) and the second cone (122) are respectively close to the upper end of the conical shaft (12) and the lower end of the conical shaft (12);

the installation component comprises at least two sliding blocks (13) which are arranged annularly, the oilstone strip (11) is arranged on the sliding blocks (13), a first conical surface (131) attached to the first cone body (121) and a conical groove (132) matched with the second cone body (122) are arranged on the sliding blocks (13), the second cone body (122) can move up and down in the conical groove (132) along the vertical direction, and therefore the sliding blocks (13) have a first state of outwards opening and a second state of inwards contracting.

3. Portable deep-hole grinding machine according to claim 2, characterized in that said pulling device (3) comprises a housing (35), said piston (32) being arranged inside said housing (35);

the grinding device (1) comprises a fixed sleeve (14) connected with the shell (35), and the sliding block (13) is installed on the fixed sleeve (14) and used for limiting the displacement of the sliding block (13) in the up-and-down direction.

4. Portable deep-hole grinding machine according to claim 3, characterized in that at least two insertion grooves (141) are provided on the outer wall of the fixed sleeve (14) and the slide (13) in the axial direction, said insertion grooves (141) being ring-shaped, elastic members (142) being provided in said insertion grooves (141).

5. Portable deep hole grinding machine according to any of the claims 2 to 4, characterized in that said pulling means (3) comprises a positioning sleeve (36) fitted on the outer wall of said gas distribution rod (31), said first gas chamber (33) being enclosed by said positioning sleeve (36), said gas distribution rod (31) and said piston (32);

the operating device (2) comprises a pull rod (21), and the first channel (211) is arranged inside the pull rod (21);

the pull rod (21) penetrates through the shell (35) and is fixedly connected with the piston (32) and the positioning sleeve (36).

6. Portable deep-hole grinding machine according to claim 5, characterized in that the handling device (2) comprises a push rod (23) arranged concentrically to the draw rod (21), the end of the push rod (23) being connected to the housing (35).

7. Portable deep-hole grinding machine according to claim 6, characterized in that said handling device (2) comprises a pusher (24) provided on the end face of said push rod (23);

the pushing piece (24) is connected with the outer wall of the pull rod (21) in a screw-mounted mode.

8. Portable deep hole grinding machine according to claim 7, characterized in that it comprises a handle (4) connected to the end of said tie rod (21), said handle (4) being provided with a transverse channel (41), said transverse channel (41) communicating with said first channel (211).

Technical Field

The invention relates to the technical field of manufacturing of impactors, in particular to a portable deep hole grinding machine.

Background

With the development of industry, various infrastructure projects are continuously promoted. The down-the-hole hammer is widely used as drilling equipment in engineering construction projects such as capital constructions, wells, mines, hydropower stations, ports, roads, tunnels and the like, and is used for digging pile foundation holes, blast holes and the like. The down-the-hole hammer provides high-pressure water or compressed air into the hammer through a compressor, drives a piston inside the hammer to reciprocate at high speed, the piston reciprocates to strike a drill bit once and again, rock breaking is realized through alloy teeth at the front end of the drill bit, and rock slag generated in the rock breaking process is discharged by the high-pressure water or high-pressure gas through a slag discharge channel of the hammer.

The impactor is composed of piston, internal cylinder, valve seat and other parts installed in external cylinder, and the drill clamping sleeve is installed in front of external cylinder. The outer cylinder is a part directly contacted with a rock stratum, so that the outer cylinder is required to have higher strength and high wear resistance, in order to ensure the impact effect of the impactor, the requirement on the perpendicularity of the impactor is usually higher, the smoothness of the inner wall of the outer cylinder is required to be higher, the smoothness of the inner wall of the outer cylinder is high, the friction resistance between the outer cylinder and the inner cylinder or between the outer cylinder and other parts can be reduced, the kinetic energy loss in the working process of the impactor can be reduced, the impactor can convert the kinetic energy into the impact energy of a drill bit, and the impact efficiency of the impactor is high.

In the actual processing process, most down-the-hole drills are deep holes, so the length of the impactor is long, namely the length of the outer cylinder is long, generally 0.8m-2m, because the length of the outer cylinder is long, in the prior art, the grinding of the inner hole of the outer cylinder is usually carried out on a grinding machine, the main shaft drives a grinding wheel to rotate, but because the length of the outer cylinder is long, the main shaft can generate deflection after grinding for a period of time, and then the coaxiality of the inner hole is poor.

Disclosure of Invention

The invention aims to provide a portable deep hole grinding machine which can be suitable for grinding an outer cylinder inner hole with a longer length and has good coaxiality of the processed inner hole.

The technical scheme of the invention is as follows:

the utility model provides a light deep hole grinding machine, includes grinding device, the inside controlling means who is equipped with first passageway, with the pulling device that controlling means connects, the pulling device include inside distribution rod that is equipped with the second passageway, the cover is located piston on the distribution rod, the piston with be equipped with first air chamber and second air chamber between the distribution rod, grinding device include with the installation component that the pulling device is connected, and locate oilstone strip on the installation component circumference outer wall, high-pressure gas carries to the second passageway from first passageway, the second passageway with first air chamber the second air chamber intercommunication, first air chamber with the inside atmospheric pressure change of second air chamber, so that piston reciprocating motion drives grinding device reciprocates from top to bottom.

Preferably, the grinding device comprises a conical shaft fixedly connected with the end part of the air distribution rod;

a first cone and a second cone are arranged on the outer wall of the conical shaft, and the first cone and the second cone are respectively close to the upper end of the conical shaft and the lower end of the cone;

the mounting assembly comprises at least two sliding blocks which are arranged in the circumferential direction, the oilstone strip is arranged on the sliding blocks, a first conical surface attached to the first cone and a conical groove matched with the second cone are arranged on the sliding blocks, and the second cone can vertically move in the conical groove, so that the sliding blocks have a first state of outward opening and a second state of inward contraction.

Preferably, the pulling device comprises a housing, the piston being arranged inside the housing;

the grinding device comprises a fixed sleeve connected with the shell, and the sliding block is mounted on the fixed sleeve and used for limiting the displacement of the sliding block in the vertical direction.

Preferably, the outer walls of the fixed sleeve and the sliding block in the axial direction are provided with at least two embedded grooves, the embedded grooves are annular, and elastic pieces are arranged in the embedded grooves.

Preferably, the pulling device comprises a positioning sleeve sleeved on the outer wall of the gas distribution rod, and the first gas chamber is enclosed by the positioning sleeve, the gas distribution rod and the piston;

the operating device comprises a pull rod, and the first channel is arranged in the pull rod;

the pull rod penetrates through the shell and is fixedly connected with the piston and the positioning sleeve.

Preferably, the operating device comprises a push rod arranged concentrically with the pull rod, and an end of the push rod is connected with the housing.

Preferably, the operating device comprises a pushing piece arranged on the end surface of the push rod;

the pushing piece is connected with the outer wall of the pull rod in a screw-mounting mode.

Preferably, the handle is connected with the end part of the pull rod, a transverse channel is arranged in the handle, and the transverse channel is communicated with the first channel.

The invention provides a portable deep hole grinding machine which comprises a grinding device, an operating device and a pulling device, wherein the operating device is internally provided with a first channel, the pulling device is connected with the operating device, the pulling device comprises a gas distribution rod, a piston and a oilstone strip, the gas distribution rod is internally provided with a second channel, the piston is sleeved on the gas distribution rod, a first gas chamber and a second gas chamber are arranged between the piston and the gas distribution rod, the grinding device comprises a mounting assembly and oilstone strips, the mounting assembly is connected with the pulling device, high-pressure gas is conveyed to the second channel from the first channel, the second channel is communicated with the first gas chamber and the second gas chamber, and the gas pressure in the first gas chamber and the second gas chamber changes so that the piston can move up and down to drive the grinding device to move up and down. When the inner hole of the outer cylinder needs to be ground, the outer cylinder is long in length and high in hardness, the grinding wheel is driven by the main shaft to rotate by the traditional grinding equipment, and the main shaft can deflect to a certain degree after being ground for a period of time along with the continuous increase of the processing depth, so that the inner hole coaxiality of the processed outer cylinder is poor. Compared with the prior art, the light deep hole grinding machine that this application provided, when needs carry out the grinding to the hole of outer cylinder, high-pressure gas circulates the second passageway from first passageway, arouses the atmospheric pressure change in first air chamber and the second air chamber for the piston reciprocates, and then drives the installation component and locate the oilstone strip on the installation component circumference outer wall and reciprocate, compares the mode of grinding processing downwards all the time, and the outer cylinder hole axiality that processes is good. Therefore, the application provides a light deep hole grinding machine can adapt to the longer outer jar hole grinding of length, and the hole axiality of processing out is good.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a sectional view of a portable deep hole grinding machine provided in an embodiment of the present invention;

fig. 2 is a partially enlarged schematic view of a grinding apparatus according to an embodiment of the present invention;

FIG. 3 is a perspective view of a portable deep hole grinding machine according to an embodiment of the present invention;

fig. 4 is a schematic view of a portable deep hole grinding machine provided by the embodiment of the invention in a use state.

Reference numbers in the drawings illustrate: 1. a grinding device; 11. oilstone strips; 12. a conical shaft; 121. a first cone; 122. a second cone; 13. a slider; 131. a first conical surface; 132. a conical groove; 14. fixing a sleeve; 141. a groove is embedded; 142. an elastic member; 2. an operating device; 21. a pull rod; 211. a first channel; 23. a push rod; 24. a pusher member; 3. a pulling device; 31. a gas distribution rod; 311. a second channel; 32. a piston; 33. a first air chamber; 34. a second air chamber; 35. a housing; 36. a positioning sleeve; 4. a handle; 41. a transverse channel.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present invention, it is to be understood that the terms "upper", "lower", and the like, indicate an orientation or positional relationship only for convenience of description and simplicity of description, but do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Referring to fig. 1 to 4, the portable deep hole grinding machine according to the present invention comprises a grinding device 1, a manipulating device 2 having a first channel 211 therein, the pulling device 3 is connected with the operating device 2, the pulling device 3 comprises a gas distribution rod 31 with a second channel 311 arranged inside, a piston 32 sleeved on the gas distribution rod 31, a first air chamber 33 and a second air chamber 34 are arranged between the piston 32 and the gas distribution rod 31, the grinding device 1 comprises a mounting assembly connected with the pulling device 3, and a oilstone strip 11 provided on the circumferential outer wall of the mounting assembly, high-pressure gas being delivered from the first passage 211 to the second passage 311, the second passage 311 is communicated with the first air chamber 33 and the second air chamber 34, and the air pressure in the first air chamber 33 and the second air chamber 34 is changed, so that the piston 32 reciprocates up and down to drive the grinding device 1 to move up and down. When the inner hole of the outer cylinder needs to be ground, the outer cylinder is long in length and high in hardness, the grinding wheel is driven by the main shaft to rotate by the traditional grinding equipment, and the main shaft can deflect to a certain degree after being ground for a period of time along with the continuous increase of the processing depth, so that the inner hole coaxiality of the processed outer cylinder is poor. Compared with the prior art, the light deep hole grinding machine that this application provided, when the hole of needs to the outer cylinder ground, high-pressure gas circulates second passageway 311 from first passageway 211, arouses the atmospheric pressure change in first air chamber 33 and the second air chamber 34 for piston 32 reciprocates, and then drives the installation component and locates the oilstone strip 11 on the installation component circumference outer wall and reciprocate, compares the mode of grinding process downwards all the time, and the outer cylinder hole axiality of processing is good. Therefore, the application provides a light deep hole grinding machine can adapt to the longer outer jar hole grinding of length, and the hole axiality of processing out is good.

Specifically, the grinding device 1 includes the conical shaft 12 fixedly connected with the end of the air distribution rod 31, a first cone 121 and a second cone 122 are arranged on the outer wall of the conical shaft 12, the first cone 121 and the second cone 122 are respectively close to the upper end of the conical shaft 12 and the lower end of the cone, the mounting assembly includes at least two sliders 13 arranged annularly, the oilstone strip 11 is arranged on the slider 13, the slider 13 is provided with a first conical surface 131 attached to the first cone 121 and a conical groove 132 matched with the second cone 122, and the second cone 122 can move up and down in the conical groove 132 along the vertical direction, so that the slider 13 has a first state of outward opening and a second state of inward contraction. The diameter range of the grinding device 1 provided in the present embodiment is adjustable within a certain range, and can be adapted to grinding of the inner bore of the outer cylinder within the range. Specifically, the upper end and the lower end of the conical shaft 12 are respectively provided with a first conical surface 131 matched with the first cone 121, a second cone 122 matched with the conical groove 132, the conical shaft 12 is pulled upwards, the sliding block 13 expands outwards, the conical shaft 12 moves downwards, and the sliding block 13 contracts inwards, so that the sliding block 13 can be switched between the first state and the second state.

In the embodiment of the present invention, the pulling device 3 includes a housing 35, the piston 32 is disposed inside the housing 35, the grinding device 1 includes a fixing sleeve 14 connected to the housing 35, and the sliding block 13 is mounted on the fixing sleeve 14 for limiting the displacement of the sliding block 13 in the up-down direction. In order to ensure that the sliding block 13 can not generate deflection in the moving process when the sliding block 13 can be switched between the first state and the second state, the fixing sleeve 14 is arranged, and the sliding block 13 is installed in the fixing sleeve 14 by adopting the fixing sleeve 14, so that the sliding block 13 cannot deflect in the vertical direction but only can move along the radial direction of the sliding block 13, and the sliding block 13 cannot deflect in the switching process between the first state and the second state.

Preferably, at least two insertion grooves 141 are provided on the outer walls of the fixed sleeve 14 and the slider 13 in the axial direction, the insertion grooves 141 are ring-shaped, and the elastic members 142 are provided in the insertion grooves 141. The reason that slider 13 is difficult to drop from fixed cover 14 has two, is the upper end of slider 13 on the one hand and lower extreme card in fixed cover 14, and on the other hand relies on the lateral wall of conical shaft 12 and the medial surface of slider 13 to support and leans on for slider 13 can only outwards expand in certain extent along its radial direction. The elastic members 142 inserted into the slots 141 and the slots 141 serve to bind the plurality of sliders 13 together, and in order to accommodate expansion or contraction of the sliders 13 in the radial direction thereof, the elastic members 142, such as O-rings made of rubber, are used, and the elastic members 142 have a certain contraction property to accommodate expansion or contraction of the sliders 13.

In the embodiment provided by the invention, the pulling device 3 comprises a positioning sleeve 36 sleeved on the outer wall of the gas distribution rod 31, the first air chamber 33 is enclosed by the positioning sleeve 36, the gas distribution rod 31 and the piston 32, the operating device 2 comprises a pull rod 21, the first channel 211 is arranged in the pull rod 21, and the pull rod 21 penetrates through the shell 35 and is fixedly connected with the piston 32 and the positioning sleeve 36. Therefore, the pull rod 21 can pull the gas distribution rod 31 and the conical shaft 12 to move, and the piston 32 moves relative to the pull rod 21, the gas distribution rod 31 and the conical shaft 12. The grinding device 1 can continuously move up and down while rotating to finish the grinding processing of the inner hole of the outer cylinder.

Further, the operating device 2 comprises a push rod 23 concentrically arranged with the pull rod 21, the end of the push rod 23 is connected with the housing 35, when an operator pushes the housing 35 and the fixing sleeve 14 to move downwards, and simultaneously, the air pressure in the first air chamber 33 and the second air chamber 34 inside the piston 32 changes to push the conical shaft 12, the air distribution rod 31 and the pull rod 21 to move upwards, relative motion occurs between the two integral structures, so that the slide block 13 can expand or retract rapidly.

In the embodiment provided by the invention, the operating device 2 comprises a pushing piece 24 arranged on the end surface of the push rod 23, and the pushing piece 24 is in threaded connection with the outer wall of the pull rod 21. The pushing piece 24 is in threaded connection with the outer wall of the pull rod 21, so that the pushing force applied to the pushing piece 24 is prevented from being parallel to a plumb line all the time, and the phenomenon that the slide block 13 deflects due to uneven stress of the pull rod 21 to cause poor coaxiality of an inner hole of the outer cylinder is avoided. Wherein the pusher 24 may be a nut.

Further, a handle 4 connected with the end of the pull rod 21 is included, a transverse passage 41 is provided in the handle 4, and the transverse passage 41 is communicated with the first passage 211. The handle 4 serves as an operating site for an operator (operating to rotate the grinding apparatus 1) on the one hand, and also as a delivery passage for high-pressure gas, allowing the high-pressure gas to be delivered from the lateral passage 41 into the first passage 211 and the second passage 311 on the other hand.

The portable deep hole grinding machine provided by the invention finishes grinding processing by enabling the grinding device 1 to continuously rotate and move up and down by rotating the handle 4 by an operator, so that the portable deep hole grinding machine provided by the invention is portable in design for reducing the operation intensity of the operator, for example, a weight reducing through hole and a weight reducing annular groove are arranged on the conical shaft 12 to reduce the dead weight of the conical shaft 12. And reducing the weight of the case 35 as much as possible when the case 35 satisfies the strength requirement.

The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts in the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.