阅读说明：本技术 一种外转子无刷直流电机驱动的炮膛擦拭装置 (Bore wiping device driven by outer rotor brushless direct current motor ) 是由 付剑涛 朱新岗 周培堂 于 2020-10-30 设计创作，主要内容包括：本发明公开了一种外转子无刷直流电机驱动的炮膛擦拭装置,包括轴向往复单元、旋转单元和导向支撑单元；旋转单元包括外转子电机、凸轮和设置在外转子电机外圈的旋转毛刷座；轴向往复单元包括往复毛刷座、第一弹簧和两只第一轴承,两只第一轴承外圈在第一弹簧的压力作用下压贴在凸轮的凹凸工作面上,带动往复毛刷座沿定子轴的轴线方向往复运动,导向支撑单元将炮膛擦拭装置定位在炮膛内壁；本发明的炮膛擦拭装置基于外转子无刷直流电机驱动旋转毛刷座进行旋转擦拭,旋转擦拭中以凸轮机构将旋转运动转换成往复运动,满足不同口径火炮的擦拭、清洗、涂油,节省了人力,大大提高了擦拭效率。(The invention discloses a bore wiping device driven by an outer rotor brushless direct current motor, which comprises an axial reciprocating unit, a rotating unit and a guide supporting unit, wherein the axial reciprocating unit is connected with the rotating unit; the rotating unit comprises an outer rotor motor, a cam and a rotating brush seat arranged on the outer ring of the outer rotor motor; the axial reciprocating unit comprises a reciprocating brush seat, a first spring and two first bearings, outer rings of the two first bearings are pressed on a concave-convex working surface of the cam under the pressure action of the first spring to drive the reciprocating brush seat to reciprocate along the axial direction of the stator shaft, and the guide supporting unit positions the bore wiping device on the inner wall of the bore; the bore wiping device provided by the invention drives the rotary brush seat to rotationally wipe based on the outer rotor brushless direct current motor, and the rotary motion is converted into reciprocating motion by the cam mechanism in the rotational wiping process, so that the requirements of wiping, cleaning and oiling guns with different calibers are met, the manpower is saved, and the wiping efficiency is greatly improved.)

1. The utility model provides a bore wiping arrangement of outer rotor brushless DC motor drive which characterized in that: comprises an axial reciprocating unit (42) arranged at the head of the bore wiping device, a rotating unit (41) at the middle part and a guide supporting unit (43) at the tail part;

the rotating unit (41) comprises an outer rotor motor, a cam (9) and a rotating brush seat (12) arranged on the outer ring of the outer rotor motor; the cam (9) is of a hollow boss structure and comprises a central hole (92) and a concave-convex working surface (91), the central hole (92) is sleeved on the outer ring of a stator shaft (13) of the outer rotor motor in a clearance mode, and an outer rotor sleeve (14) of the outer rotor motor drives the rotary brush seat (12) and the cam (9) to synchronously rotate when rotating;

the axial reciprocating unit (42) comprises a reciprocating brush seat (4), a first spring (3) and two first bearings (8), and outer rings of the two first bearings (8) are pressed against a concave-convex working surface (91) of the cam (9) under the pressure action of the first spring (3) so as to drive the reciprocating brush seat (4) to reciprocate along the axial direction of the stator shaft (13);

the rotary brush seat (12) and the reciprocating brush seat (4) are respectively provided with a plurality of groups of brushes (40);

the guiding and supporting unit (43) comprises a guiding and supporting barrel (28), a movable support (30), three rollers (25) and three sets of movable connecting rod mechanisms corresponding to the rollers, the movable support (30) is of a hollow structure, the inner ring of the movable support (30) is movably sleeved on the outer ring of the guiding and supporting barrel (28), the three rollers (25) and the three sets of movable connecting rod mechanisms are uniformly distributed at intervals in a trisection mode along the circumference of the guiding and supporting barrel (28), and each set of movable connecting rod mechanism drives the corresponding roller (25) to be in contact with the inner wall of a bore.

2. The external rotor brushless dc motor-driven bore wiping apparatus according to claim 1, wherein: the stator is characterized in that a second bearing seat (10) and a third bearing seat (19) are respectively arranged on two sides of the outer rotor sleeve (14), a second bearing (11) and a third bearing (20) are respectively arranged between the stator shaft (13) and the second bearing seat (10) and between the stator shaft and the second bearing seat (19), and when the outer rotor sleeve (14) rotates, the second bearing seat (10) and the third bearing seat (19) rotate along with the stator shaft.

3. The outer rotor brushless dc motor-driven bore wiping apparatus according to claim 1 or 2, characterized in that: two concave parts and two convex parts are symmetrically arranged on the concave-convex working surface (91) of the cam (9), and the concave parts and the convex parts are in smooth transition; the concave-convex working surface (91) is arranged on a chassis (93) which is fixed on the second bearing seat (10).

4. An external rotor brushless dc motor driven bore wiping apparatus according to any one of claims 1 to 3, wherein: the rotary brush holder (12) is divided into two sections in the axial direction of the stator shaft (13), and each section is divided into two parts in the circumferential direction of the stator shaft (13).

5. The external rotor brushless dc motor-driven bore wiping apparatus according to claim 1, wherein: the axial reciprocating unit (42) further comprises a sliding bearing (5), an outer ring of the sliding bearing (5) is arranged on the first bearing seat (6), and an inner ring of the sliding bearing (5) is fixed on the stator shaft (13).

6. The outer rotor brushless dc motor-driven bore wiping apparatus according to claim 1 or 5, wherein: the head of the stator shaft (13) is provided with a locking nut (1) and a hollow spring seat (2), and the spring seat (2) is fixed on the stator shaft (13) by the locking nut (1); the first spring (3) is arranged in the hollow part of the spring seat (2).

7. The external rotor brushless dc motor-driven bore wiping apparatus according to claim 1, wherein: each set of movable connecting rod mechanism comprises a second spring (22), a first connecting rod (24) and a second connecting rod (26); one end of the second spring (22) is fixed on the movable support (30), the other end is fixed on the spring hanging plate (21), and the spring hanging plate (21) is fixed on the stator shaft (13) or the guide support cylinder (28).

8. The outer rotor brushless dc motor-driven bore wiping apparatus according to claim 1 or 7, wherein: the guide support unit (43) further comprises a liquid spray head (29) fixed on the outer wall of the guide support cylinder (28).

9. The external rotor brushless dc motor driven bore wiping apparatus according to claim 8, wherein: the liquid spraying head (29) comprises a nozzle (51), a liquid outlet through hole (52) and a liquid spraying tail sleeve (53); the opening direction of the nozzle (51) faces the head of the bore wiping device and is inclined toward the inner wall of the bore.

10. The external rotor brushless dc motor driven bore wiping apparatus according to claim 9, wherein: a hard tube (55) is sleeved at the tail end (31) of the guide supporting unit, a liquid guide tube (56) is arranged in the hard tube (55), one end of the liquid guide tube (56) is connected to the liquid spraying tail sleeve (53), the other end of the liquid guide tube is connected with a liquid spraying box, and liquid in the liquid spraying box is sprayed to the wall of the bore through the liquid guide tube (56), the liquid spraying tail sleeve (53), the liquid outlet through hole (52) and the nozzle (51) in sequence.

Technical Field

The invention belongs to the field of mechanical equipment, and particularly relates to a gun bore wiping device, in particular to a gun bore wiping device based on outer rotor brushless direct current motor driving.

Background

The artillery is wiped for maintenance before and after shooting and during the opening and closing of the artillery. Especially, after the artillery is shot, a certain amount of propellant powder combustion products are adhered to the inner cavity, if the propellant powder combustion products are not removed in time, the fighting and technical performance of the artillery is influenced, and the inner cavity can be exploded in serious cases. At present, artillery inner walls are manually scrubbed mainly by a plurality of personnel holding a artillery scrubbing rod with scrubbing heads at one end, so that time and labor are wasted, labor intensity is high, scrubbing efficiency is low, and reliability of continuous shooting of the artillery cannot be guaranteed.

Chinese patent 'wiper for wiping inner wall of gun barrel or other pipeline' with application number 201120404585.5 discloses a wiper, which comprises a driving device, a wiping device, a supporting device and a control device, wherein the wiper adopts a pneumatic/hydraulic actuating element linkage supporting device and a wiping device which can axially stretch and retract, so as to realize axial wiping and pipeline guide advancing. In practical application, because a pneumatic or hydraulic source and a pipeline are needed, the defects of large equipment volume, inconvenience in use and the like exist.

Disclosure of Invention

The invention provides a bore wiping device driven by an outer rotor brushless direct current motor, which solves the problem that an air pipe and an air source are inconvenient to carry in the traditional pneumatic or hydraulic drive and can conveniently wipe the bore.

The technical scheme of the invention is as follows:

a bore wiping device driven by an outer rotor brushless direct current motor comprises an axial reciprocating unit arranged at the head of the bore wiping device, a rotating unit arranged in the middle of the bore wiping device and a guide supporting unit arranged at the tail of the bore wiping device;

the rotating unit comprises an outer rotor motor, a cam and a rotating brush seat arranged on the outer ring of the outer rotor motor; the cam is of a hollow boss structure and comprises a central hole and a concave-convex working surface, the central hole is sleeved on the outer ring of the stator shaft of the outer rotor motor in a clearance mode, and the outer rotor sleeve of the outer rotor motor drives the rotating brush seat and the cam to synchronously rotate when rotating;

the axial reciprocating unit comprises a reciprocating brush seat, a first spring and two first bearings, and outer rings of the two first bearings are pressed on the concave-convex working surface of the cam under the pressure action of the first spring so as to drive the reciprocating brush seat to reciprocate along the axial direction of the stator shaft;

the rotary brush seat and the reciprocating brush seat are respectively provided with a plurality of groups of brushes;

the guiding and supporting unit comprises a guiding and supporting cylinder, a movable support, three rollers and three sets of movable connecting rod mechanisms corresponding to the rollers, the movable support is of a hollow structure, the inner ring of the movable support is movably sleeved on the outer ring of the guiding and supporting cylinder, the three rollers and the three sets of movable connecting rod mechanisms are uniformly distributed at intervals in trisection along the circumference of the guiding and supporting cylinder, and each set of movable connecting rod mechanism drives the corresponding roller to be in contact with the inner wall of the bore.

In the bore wiping device driven by the outer rotor brushless direct current motor, the two sides of the outer rotor sleeve are respectively provided with the second bearing seat and the third bearing seat, the second bearing and the third bearing are respectively arranged between the stator shaft and the second bearing seat and between the stator shaft and the second bearing seat, and when the outer rotor sleeve rotates, the second bearing seat and the third bearing seat rotate along with the outer rotor sleeve.

In the bore wiping device driven by the outer rotor brushless direct current motor, two concave parts and two convex parts are symmetrically arranged on the concave-convex working surface of the cam, and the concave parts and the convex parts are in smooth transition; the concave-convex working surface is arranged on the chassis, and the chassis is fixed on the second bearing seat.

In the bore wiping device driven by the outer rotor brushless direct current motor, the rotary brush seat is divided into two sections in the axial direction of the stator shaft, and each section is divided into two parts in the circumferential direction of the stator shaft.

In the bore wiping device driven by the outer rotor brushless direct current motor, the axial reciprocating unit further comprises a sliding bearing, an outer ring of the sliding bearing is mounted on the first bearing seat, and an inner ring of the sliding bearing is fixed on the stator shaft.

In the bore wiping device driven by the outer rotor brushless direct current motor, the head of the stator shaft is provided with a locking nut and a hollow spring seat, and the locking nut fixes the spring seat on the stator shaft; the first spring is arranged in the hollow part of the spring seat.

In the bore wiping device driven by the outer rotor brushless direct current motor, each set of movable connecting rod mechanism comprises a second spring, a first connecting rod and a second connecting rod; one end of the second spring is fixed on the movable support, the other end of the second spring is fixed on the spring hanging plate, and the spring hanging plate is fixed on the stator shaft or the guide support cylinder.

In the bore wiping device driven by the outer rotor brushless direct current motor, the guide support unit further comprises a liquid spraying head fixed on the outer wall of the guide support cylinder.

In the bore wiping device driven by the outer rotor brushless direct current motor, the liquid spraying head comprises a nozzle, a liquid outlet through hole and a liquid spraying tail sleeve; the opening direction of the nozzle faces the head of the bore wiping device and inclines towards the inner wall direction of the bore.

In the bore wiping device driven by the outer rotor brushless direct current motor, the tail end of the guide support unit is sleeved with the hard tube, the hard tube is internally provided with the liquid guide tube, one end of the liquid guide tube is connected to the liquid spraying tail sleeve, the other end of the liquid guide tube is connected with the liquid spraying box, and liquid in the liquid spraying box is sprayed to the wall of the bore through the liquid guide tube, the liquid spraying tail sleeve, the liquid outlet through hole and the nozzle in sequence.

The invention has the following beneficial technical effects:

1. the rotary unit is driven to drive the rotary brush to rotationally wipe based on the brushless direct current motor, and meanwhile, the rotary motion is converted into synchronous reciprocating motion by the cam mechanism, so that the reciprocating brush can perform reciprocating wiping along the bore direction; the motor can rotate forward and backward during wiping, and the gun cleaning machine can automatically advance or retreat by utilizing the spiral line in the gun bore. The reciprocating and rotating combined wiping method is combined with brushes made of different materials, so that the requirements of wiping, cleaning and oiling guns with different calibers are met, the manpower is saved, and the wiping efficiency is greatly improved.

2. The guiding support unit is uniformly distributed and supported in the bore by three rollers in a trisection manner, is adaptive to different bore diameters of the gun barrel, and simultaneously, the self-contained oil injection component can automatically spray gun cleaning liquid, spray water and spray oil according to different requirements, so that the gun cleaning machine can finish the processes of cleaning, rust-proof oiling and the like at one time.

3. The rotary brush seat is divided into two sections in the length direction, each section is divided into two sections averagely and is buckled on the outer rotor sleeve ring, the processing and assembling difficulty of the rotary brush seat is reduced, and meanwhile, the disassembly, assembly and replacement of the brush seat and the brush are facilitated.

4. The axial reciprocating unit of the invention is based on the cam of the concave-convex working surface and two ball bearings, realizes the reciprocating motion of the reciprocating brush seat under the action of the pre-tightening force of the spring, and the reciprocating brush seat reciprocates twice when the rotating brush seat rotates for one circle.

Drawings

Fig. 1 is a view of the constituent parts of the bore wiping device of the present invention;

figure 2 is a three-dimensional block diagram of the bore wiping arrangement of the present invention;

FIG. 3 is a schematic diagram of the constitution of the bore wiping device of the present invention;

FIG. 4 is a schematic diagram of the structure of the rotary unit of the present invention;

FIG. 5 is a cross-sectional view of a rotary unit of the present invention;

FIG. 6 is a schematic view of a rotary brush according to the present invention;

FIG. 7 is a schematic view of the structure of the axial reciprocating unit of the present invention;

FIG. 8 is a schematic view of the axial reciprocating mechanism of the present invention;

FIG. 9 is a cam structure view of the axial reciprocating mechanism of the present invention;

FIG. 10 is a three-dimensional structural view of a guide support unit of the present invention;

FIG. 11 is a cross-sectional view of a guide support unit of the present invention;

FIG. 12 is a schematic view of the rear end structure of the guiding support unit according to the present invention.

The reference numbers are as follows: 1-locking a nut; 2-a spring seat; 3 a first spring; 4-reciprocating brush base; 5-a sliding bearing; 6-a first bearing seat; 7-a pin shaft; 8-a first bearing; 9-a cam; 10-a second bearing block; 11-a second bearing; 12-rotating brush holders; 13-a stator shaft; 14-an outer rotor sleeve; 15-a permanent magnet; 16-flat bond; 17-a winding; 18-stator punching; 19-a third bearing housing; 20-a third bearing; 21-spring hanging plate; 22-a second spring; 23-a first hinge; 24-a first link; 25-a roller; 26-a second link; 27-a second hinge; 28-a guide support cylinder; 29-liquid jet head; 30-a movable support; 31-guiding the tail end of the supporting unit; 40-a brush; 41-a rotation unit; 42-an axial reciprocating unit; 43-a guide support unit; 51-a nozzle; 52-liquid outlet through holes; 53-spray tail sleeve; 54-a cable; 55-hard tube; 56-a catheter; 91-concave-convex working surface; 92-a central hole; 93-Chassis.

Detailed Description

As shown in fig. 1 and 2, the bore wiping apparatus of the present invention includes a rotation unit 41 at the middle, an axial reciprocation unit 42 at the head, and a guide support unit 43 at the tail.

The rotating unit 41 drives the rotating brush base 12 to perform rotating wiping based on the outer rotor brushless dc motor, and the rotating brush base 12 converts the rotating motion into reciprocating motion by the cam mechanism during the rotating wiping, and synchronously drives the reciprocating brush base 4 in the axial reciprocating unit 42 to perform reciprocating wiping. The motor can rotate forward and backward, and the gun cleaning machine can automatically advance or retreat by utilizing the spiral line in the gun bore. The guiding and supporting unit 43 is supported in the bore by three equal parts of three rollers uniformly distributed along the circumferential direction (the included angle of every two rollers in the circumferential direction is 120 degrees), so that the guiding and supporting unit is adaptive to different bore diameters of the gun barrel, and simultaneously, the self-carried oil injection component injects oil in wiping. By adopting the rotary and reciprocating combined motion wiping method and adopting the brushes made of different materials, the requirements of wiping, cleaning and oiling guns with different calibers are met, the manpower is saved, and the wiping efficiency is greatly improved.

(I) a rotation unit

As shown in fig. 3 to 5, the rotating unit 41 mainly includes a central outer rotor brushless dc motor, a cam 9 and an outer ring rotating brush base 12, and brushes 40 are uniformly mounted on the rotating brush base 12.

The outer rotor brushless direct current motor adopts a conventional outer rotor brushless direct current motor structure and mainly comprises a central stator shaft 13, a winding 17, a permanent magnet 15 and an outer rotor sleeve 14; the stator punching sheet 18 is sleeved outside the stator shaft 13, and the stator punching sheet 18 is fixed on the stator shaft 13 through a compression fit or a flat key 16. The outer ring of the stator lamination 18 is provided with a plurality of teeth, and the winding 17 is wound on the teeth of the stator lamination 18. The outer ring of the stator is an annular permanent magnet 15, an outer rotor sleeve 14 is arranged outside the permanent magnet 15, and the permanent magnet 15 is arranged in the outer rotor sleeve 14; a second bearing seat 10 and a third bearing seat 19 are respectively arranged on two sides of the outer rotor sleeve 14, and a second bearing 11 and a third bearing 20 are respectively arranged between the stator shaft 13 and the second bearing seat 10 and the second bearing seat 19. As the outer rotor sleeve 14 rotates, the second bearing housing 10 and the third bearing housing 19 follow the rotation.

The cam 9 is a hollow integrated boss structure, and comprises a central hole 92, a concave-convex working surface 91 and a base plate 93, wherein the concave-convex working surface 91 is arranged on the base plate 93. The concave-convex working surface 91 is formed by symmetrically arranging two concave parts and two convex parts on the circumference of the boss working surface, and the concave parts and the convex parts are in smooth transition; the center hole 92 is fitted around the outside of the stator shaft 13 with a gap maintained, and the base plate 93 is fixed to the second bearing housing 10 by screws to rotate synchronously with the outer rotor sleeve 14 for driving the axial reciprocating unit.

The stator shaft 13 is fixed to a guide support unit 43, and the guide support unit 43 is supported on the inner wall of the bore. When the winding 17 is connected with a direct current power supply, an internal rotating magnetic field is formed under the drive of the permanent magnet brushless direct current motor driver, the stator shaft 13 is static, and the rotating brush base 12 performs rotating motion, so that the brush 40 wipes the bore.

As shown in fig. 4 and 6, the rotary brush holder 12 is divided into two sections in the axial direction of the stator shaft 13, each section is divided into two sections in the circumferential direction of the stator shaft 13, and the two sections are fastened or fixed on the outer ring of the outer rotor sleeve 14 by screws, so as to reduce the processing and assembling difficulty and facilitate the disassembly, assembly and replacement of the brush holder and the brush.

(II) axial reciprocating unit

As shown in fig. 7 to 9, the axial reciprocating unit 42 includes a reciprocating brush holder 4, a first spring 3, a first bearing holder 6, and two first bearings 8; the first bearing 8 is a ball bearing, the inner ring of the first bearing 8 is provided with a pin shaft 7, the first bearing 8 is arranged on the first bearing seat 6, the central line of the first bearing 8 is vertical to the axis of the stator shaft 13, and the outer ring of the first bearing 8 is attached to the concave-convex working surface 91 of the cam 9; the reciprocating brush holder 4 is mounted on a bearing block 6.

As a further embodiment, the axially reciprocating unit 42 further comprises a sliding bearing 5, an outer ring of the sliding bearing 5 being mounted on the first bearing seat 6, and an inner ring of the sliding bearing 5 being fixed on the stator shaft 13.

In a further embodiment, a locknut 1 and a hollow spring seat 2 are mounted on the head of the stator shaft 13, the locknut 1 fixes the spring seat 2 to the stator shaft 13, and the first spring 3 is provided in the hollow portion of the spring seat 2. The outer race of the first bearing 8 is pressed against the concave-convex working surface 91 of the cam 9 by the pressure of the first spring 3.

When the outer rotor brushless direct current motor rotates, the outer rotor sleeve 14 rotates, the second bearing seat 10 rotates along with the outer rotor brushless direct current motor, and the cam 9 is driven to rotate along with the outer rotor brushless direct current motor. The first spring 3 gives pretightening force to the first bearing seat 6, so that the outer rings of the two first bearings 8 and the concave-convex working surface 91 at the corresponding position of the cam 9 perform linear contact reciprocating motion, the first bearing seat 6 and the reciprocating brush seat 4 are further driven to reciprocate along the axis direction of the stator shaft 13, and the reciprocating brush seat 4 reciprocates for 2 times when the outer rotor sleeve 14 and the rotary brush seat 12 rotate for each circle.

The cleaning mode combining the rotation of the rotary brush and the reciprocating motion of the reciprocating brush overcomes the defect of the traditional single cleaning method and better cleans the dirt on the negative line and the positive line of the bore. The brush 40 is made of bristles, stainless steel wires, nylon or other materials, and is bonded or riveted on the brush seat 4 after being bundled into a plurality of groups, the length of the exposed part is several millimeters, and the distance between every two groups of brushes is 10-20 mm, so that the process requirements of copper hanging removal, dirt removal, cleaning, oil coating and the like in the wiping process are met.

(III) guiding and supporting unit

As shown in fig. 10 and 11, the guide supporting unit 43 includes a guide supporting cylinder 28, a movable support 30, three rollers 25, and three sets of movable link mechanisms corresponding to the three rollers one by one. The guiding support cylinder 28 is a cylindrical structure, one end of the guiding support cylinder 28 is sleeved and fixed at the tail part of the stator shaft 13, and the other end can be penetrated by a power supply cable of the winding. The movable support 30 is a hollow structure, and the inner ring of the movable support 30 is movably sleeved on the outer ring of the guide support cylinder 28.

Each set of movable linkage comprises a second spring 22, a first link 24 and a second link 26; one end of the second spring 22 is fixed on the movable support 30, the other end is fixed on the spring hanging plate 21, and the spring hanging plate 21 is fixed on the stator shaft 13 or the guide support cylinder 28. The first connecting rod 24 and the second connecting rod 26 movably support the roller 25 outside the guide supporting cylinder 28 through the first hinge 23 and the second hinge 24 respectively, and three rollers 25 are evenly distributed at intervals in a trisection manner around the guide supporting cylinder 28, under the pre-pressure action of the second spring 22, three sets of movable connecting rod mechanisms enable the three rollers 25 to be in contact with the inner wall of the bore, so that the wiping requirements of bores with different calibers are met within a certain range.

The whole bore wiping device is supported by the guide supporting unit 43 at the tail end and the brushes at the front end and the middle part, keeps good position precision and working posture in the bore, and can move back and forth in the bore through the three rollers 25 to wipe the position of the bore.

As shown in fig. 11 and 12, the guide supporting unit 43 further includes a liquid ejecting head 29 fixed on the outer wall of the guide supporting cylinder 28, the liquid ejecting head 29 including a nozzle 51, a liquid outlet hole 52 and a liquid ejecting tail cap 53; the tail end 31 of the guide supporting unit is of a cylindrical structure, a hard pipe 55 is sleeved outside the guide supporting unit, the hard pipe is formed by arranging reinforcing ribs inside a rubber pipe, a cable 54 and a liquid guide pipe 56 which are connected with a motor winding are arranged inside the hard pipe 55, one end of the liquid guide pipe is connected to a liquid spraying tail sleeve 53, the other end of the liquid guide pipe is connected with a liquid spraying box, blasting liquid or oil, water and the like are sequentially sprayed to the wall of a bore through a liquid outlet through hole 52 and a nozzle 51 under the action of pressure, the opening direction of the nozzle 51 faces to the head of the bore wiping device and inclines outwards, the blasting liquid is sprayed onto the inner wall of the bore by a liquid spraying head 29 when the gun. And the gun cleaning liquid, the water spraying and the oil spraying are automatically carried out according to different requirements, so that the gun cleaning machine can complete the procedures of cleaning, rust-proof oil coating and the like at one time. Different brushes are changed during oiling and copper hanging removal, the brushes are stainless steel wires and spray blasting liquid during copper hanging removal, and the brushes are bristles and spray oil during oiling. When in use, an operator can move the bore back and forth by holding the hard tube 55 with hands to wipe different positions.

The bore wiping device adopts the self-designed outer rotor brushless direct current motor as the rotating power to drive the rotating hairbrush to rotate, and the rotating power is ingeniously converted into linear reciprocating motion by matching with the cam mechanism, so that the reciprocating motion of the reciprocating hairbrush is realized.