CN215878920U

CN215878920U - Bolt cleaner

Info

Publication number: CN215878920U
Application number: CN202122308973.XU
Authority: CN
Inventors: 郑展峰; 徐立洲; 李荣基; 余清仕; 顾勐; 王虎; 夏建栋; 杨广林; 胡晶
Original assignee: ZHENHAI PETROCHEMICAL JIANAN ENGINEERING CO LTD
Current assignee: Zhenhai Petrochemical Construction And Installation Engineering Co ltd
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2022-02-22
Anticipated expiration: 2031-09-18

Abstract

A bolt cleaning machine comprising: the device comprises a base (1), a feeding belt (2), a rolling brush (3) and a driving piece (5), wherein the feeding belt (2) is movably arranged on the top wall of the base (1), the feeding belt (2) comprises a plurality of feeding roller columns (21) which are arranged side by side along the moving direction and are parallel to the top wall of the base (1), and a mounting groove (20) for placing a bolt is formed between every two adjacent feeding roller columns (21); the rolling brush (3) is arranged above the feeding belt (2) in a rotatable mode and used for brushing bolts placed on the mounting groove (20), and a rotating shaft of the rolling brush (3) is basically parallel to the feeding roller (21) and extends along the axial direction of the feeding roller (21); the output end of the driving piece (5) acts on the feeding belt (2) so as to drive the feeding belt (2) to move. Compared with the prior art, the bolt cleaning device can clean a plurality of bolts, especially bolts with highly combined attachments on the surfaces.

Description

Bolt cleaner

Technical Field

The utility model belongs to the technical field of cleaning equipment, and particularly relates to a bolt cleaning machine.

Background

During the maintenance period of the petrochemical device, a large number of pressure vessels and flanges are disassembled and assembled, and the disassembled bolts need to be reused. In order to improve the installation quality of the recycled bolts, the removed old bolts need to be cleaned, derusted, oiled and the like. Traditional retrieval and utilization bolt washs mostly kerosene and soaks + artifical washing and washing + artifical oiling, mechanical form have single mechanical derusting + soak and wash + artifical oiling, process dispersion, single washing, waste time and energy, work efficiency and cleaning quality can not obtain the assurance, because cleaning quality can not obtain the guarantee, the utilization ratio of old bolt is generally below 60%.

At present, two types of mechanical equipment for cleaning bolts in the industry are available, the first type is used for cleaning and derusting old bolts, partial efficiency can be improved compared with the pure manual operation, but only one bolt can be cleaned at a time, and the efficiency is not obviously improved.

The second type is used for cleaning new bolts, and utilizes a high-pressure water gun or ultrasonic waves to clean scraps and dust with low adhesive force on the surfaces of the new bolts, such as a structure disclosed in the utility model patent application with the application number of CN201910697886.2, namely, a novel bolt cleaning device (with the application publication number of CN110252722A), which comprises a device main body, a first conveying belt, a second conveying belt, a vibration cleaning mechanism, a cleaning tank, a first guide slope, a second guide slope, a third conveying belt, a flushing pipe, a hot air pipeline, a partition plate, a first water storage tank, a second water storage tank and a partition column, wherein the first conveying belt is arranged on the left side of the device main body, the second conveying belt is arranged on the top inside the device main body, the vibration cleaning mechanism is arranged on the second conveying belt, the cleaning tank is arranged below the second conveying belt, the first guide slope is arranged on the left side tank wall of the cleaning tank, the second guide slope is arranged on the right side tank wall of the cleaning tank, the right side of the second material guiding slope is provided with a third conveying belt, a flushing pipe and a hot air pipeline are arranged above the third conveying belt, the hot air pipeline is located on the right side of the flushing pipe, a partition plate is arranged between the flushing pipe and the hot air pipeline, a first water storage tank and a second water storage tank are respectively arranged below the flushing pipe and the hot air pipeline, and a partition column is arranged between the first water storage tank and the second water storage tank. The application can clean new bolts, but the cleaning of attachments (oil stain, laminated dust, iron rust and the like) with high combination is not satisfactory, and adverse factors are brought to on-site cleaning and environmental protection due to the operations of on-site open bolt grinding, kerosene soaking and washing, manual oiling and lubricating and the like, and the cleaning quality is also not ensured.

Therefore, in the cleaning work of the recycled bolts during the maintenance of the petrochemical device, the defects of time and labor waste and low cleaning quality exist in manual or semi-mechanical operation, a large amount of manpower and material resources need to be input by a maintenance unit, and the requirement of efficient maintenance cannot be met. Therefore, the design of the cleaning equipment with high efficiency, environmental protection and stable quality has great significance in realizing the full-automatic, streamlined, fully-closed, pollution-free and stable-quality bolt cleaning machine.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of the prior art and provides a bolt cleaning machine which can clean a plurality of bolts, particularly bolts with highly-combined attachments on the surfaces.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a bolt cleaning machine comprising:

a base having a top wall;

it is characterized by also comprising:

the feeding belt is movably arranged on the top wall of the base and comprises a plurality of feeding roller columns which are arranged side by side along the moving direction and are parallel to the top wall of the base, and an installation groove for placing a bolt is formed between every two adjacent feeding roller columns;

the rolling brush is arranged above the feeding belt in a rotatable mode and used for brushing and cleaning the bolts placed on the mounting groove, and a rotating shaft of the rolling brush is basically parallel to the feeding roller and extends along the axial direction of the feeding roller;

the output end of the driving piece acts on the feeding belt so as to drive the feeding belt to move.

The feeding belt can move back and forth to realize the repeated operation of the cleaning machine, and can also move along the annular clockwise or counterclockwise direction to realize the repeated operation of the cleaning machine. Preferably, the feed belt runs annularly along the outer peripheral wall of the base.

Preferably, the device also comprises a rack extending along the moving direction of the feeding belt, the rack is provided with at least two racks which are respectively arranged corresponding to two ends of each feeding roller, two ends of each feeding roller are respectively provided with a first gear matched with the rack, and each first gear is coaxially arranged with the corresponding feeding roller; the driving piece comprises a motor and a second gear in transmission connection with an output shaft of the motor, and a tooth part of the second gear is meshed between every two adjacent feeding rollers. So, the motor can drive the second gear and rotate, and then drive the pay-off roller and remove, and each pay-off roller can the rotation in the removal process to make the bolt on the pay-off roller also can rotate, make each face homoenergetic of bolt obtain better cleanness.

Preferably, the round brush passes through the connecting frame and installs the top at the pay-off area, the pivot of round brush has at least two, is first pivot, second pivot respectively, first pivot, second pivot set up in the connecting frame along the moving direction of pay-off area at interval side by side, and the both ends of first pivot, second pivot with can the pivoted mode restraint on the connecting frame, the round brush is the cyclic annular brush body of cover simultaneously on first, second pivot periphery. Therefore, the rolling brush can brush a plurality of bolts at the same time. Of course, the round brush of this application also can adopt the current structure that only has a pivot, and the round brush cover is established in the periphery of this pivot.

The round brush in this application contacts with the bolt when using, because the bolt can remove along with the pay-off area, so when not having actuating mechanism, the round brush also can take place to rotate under the frictional force effect of the bolt that removes. In order to enable the annular brush body to rotate synchronously when the feeding belt moves, further, a driving gear and a driven gear are respectively sleeved on the end parts of the same sides of the first rotating shaft and the second rotating shaft, a driving belt meshed with the driving gear and the driven gear and connected end to end is sleeved on the driving gear and the driven gear, and an output shaft of the motor is in transmission connection with the first rotating shaft through a transmission mechanism. The transmission mechanism can be a gear set and other existing transmission mechanisms. Of course, a driving mechanism may be additionally provided to drive the first rotating shaft to rotate.

In the above solution, in order to adapt the cleaning machine of the present application to bolts with different diameters, it is preferable that a height adjusting assembly connected to the connecting frame is further included for adjusting the height of the connecting frame.

Above-mentioned optional pneumatic cylinder of altitude mixture control subassembly, pneumatic cylinder, screw-nut subassembly etc. preferably, the altitude mixture control subassembly has at least two sets ofly and sets up along the moving direction interval of pay-off area, and each group's altitude mixture control subassembly is including screw rod, nut, connecting piece, spring, the vertical setting of screw rod and relative base are fixed, nut threaded connection is on the screw rod, the periphery at the screw rod is established to the spring housing, and the lower extreme butt of spring is on the up end of nut, and the upper end of spring is located the top on screw rod top and retrains on the connecting piece, so that the connecting piece has the trend of rebound all the time, and this connecting piece with the carriage links to each other. Therefore, when the height of the connecting frame can be adjusted through the rotary nut, the connecting piece connected with the connecting frame is supported at the upper end of the spring, so that the connecting frame can float up and down when being acted by external force, and then the rolling brush can be well attached to the bolt, and the cleaning effect is improved.

In each of the above solutions, in order to maintain cleanness of a field environment, it is preferable that the cleaning device further includes a dust hood and a dust collection fan, the dust hood has a dust collection cavity with a downward opening, the dust hood is disposed above the roller brush, the opening of the dust collection cavity is opposite to the roller brush, and an air inlet end of the dust collection fan is communicated with the dust collection cavity.

In order to further clean the bolt cleaned by the roller brush, the cleaning device preferably further comprises a cleaning tank, the cleaning tank is provided with a cleaning cavity with an open top, the cleaning tank is located at the downstream of the roller brush along the moving direction of the feeding belt, the feeding belt passes over the top of the cleaning tank, and part of the feeding belt is located in the cleaning cavity to form a cleaning part.

In order to dry the cleaned bolt, preferably, the air outlet end of the dust collection fan is located above the feeding belt and at the downstream of the cleaning part, and a filter element is arranged between the air inlet end and the air outlet end of the dust collection fan.

Finally, in order to oil the dried bolt, preferably, the bolt drying device further comprises an oiling device which is positioned at the downstream of the air outlet end of the dust collection fan and above the feeding belt, and an oil receiving groove which is positioned below the feeding belt, wherein the oiling device comprises an oil outlet piece with an oil outlet facing downwards and opposite to the feeding belt, and a brush which is arranged at the downstream of the oil outlet piece, the brush head of the brush faces downwards and opposite to the feeding belt, the oil receiving groove is provided with an oil receiving cavity with an open top, and the top of the oil receiving cavity is opposite to the oiling device.

Compared with the prior art, the utility model has the advantages that: through set up feeding belt, round brush and can drive the driving piece that the feeding belt removed on the base for a plurality of bolts can be placed in each mounting groove of feeding belt in proper order, and under the effect of feeding belt top round brush, the filth attached to on each bolt can be brushed off by the round brush, and then makes this application can clean many bolts, especially the old bolt that has high combination attachment on the surface. And the structure is simple and convenient to implement.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of another view according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of an embodiment of the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 1;

FIG. 5 is a schematic view of a connecting structure between a feeding roller and a rack in the embodiment of the utility model;

FIG. 6 is a schematic structural view of a height adjustment assembly in an embodiment of the present invention;

fig. 7 is a cross-sectional view of fig. 6.

Detailed Description

The utility model is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 7, a bolt cleaning machine according to a preferred embodiment of the present invention includes a base 1, a feeding belt 2, a rolling brush 3, a dust collecting tank 4, a driving member 5, a height adjusting assembly 6, a dust hood 7, a dust collecting fan 71, a cleaning tank 8, an oiling device 9, and an oil collecting tank 90.

Wherein, the base 1 is a frame structure with a hollow interior. The ash receiving tank 4, the cleaning tank 8 and the oil receiving tank 90 are sequentially arranged in the base 1 from left to right (as shown in fig. 2 and 3). And the ash receiving groove 4 is provided with an ash receiving cavity 40 with an open top. Sink 8 has a wash chamber 80 that is open at the top. The oil receiving groove 90 has an oil receiving chamber 900 opened at the top. Meanwhile, the cleaning tank 8 of the present embodiment has a vibration function to improve the cleaning effect.

The peripheral wall of the base 1 is provided with racks 22 running in a ring shape, the racks 22 sequentially surround the top wall, the right side wall, the bottom wall and the left side wall of the base 1, and in this embodiment, the racks 22 are arranged on the peripheral wall of the base 1 at intervals in tandem. The feeding belt 2 is in an annular structure connected end to end, and the feeding belt 2 surrounds and is supported on the periphery of the rack 22, so that the feeding belt 2 can move along the rack 22 under the action of external force. In this embodiment, the belt 2 is moved in a clockwise direction (as indicated by the arrows in fig. 2 and 3). The feeding belt 2 comprises a plurality of feeding roller columns 21 which are arranged side by side along the moving direction and are parallel to the top wall of the base 1, and a mounting groove 20 for placing a bolt is formed between every two adjacent feeding roller columns 21. Two ends of each feeding roller column 21 are respectively arranged corresponding to the two racks 22, two ends of each feeding roller column 21 are respectively provided with a first gear 211 matched with the racks 22, each first gear 211 and the corresponding feeding roller column 21 are coaxially arranged and fixed on the corresponding feeding roller column 21, the same side end parts of the adjacent feeding roller columns 21 are connected through a connecting strip 23, and the end parts of the feeding roller columns 21 can rotate relative to the connecting strip 23. Meanwhile, in the embodiment, the feeding belt 2 passes over the top of the cleaning tank 8, and a part of the feeding belt 2 is located in the cleaning cavity 80 to form a cleaning part 2a, as shown in fig. 1 to 5.

As shown in fig. 1 to 3, the output end of the driving member 5 acts on the feeding belt 2 to drive the feeding belt 2 to move. In this embodiment, the driving member 5 includes a motor 51 mounted on the base 1, a third gear 53 connected to an output shaft of the motor 51, a fourth gear 54 engaged with the third gear 53, a fifth gear 55 engaged with the fourth gear 54, and a second gear 52, wherein the output shaft of the motor 51 extends along the axial direction of the feeding roller 21, two fourth gears 54 are disposed on two sides of the base 1 in a front-back opposite manner, the two fourth gears 54 are connected by a fourth connecting shaft 541, and one of the fourth gears 54 is engaged with the third gear 53; two fifth gears 55 are also provided and are respectively arranged corresponding to the two fourth gears 54 and meshed with the corresponding fourth gears 54, the two fifth gears 55 are connected through a fifth connecting shaft 551, and the fourth connecting shaft 541 and the fifth connecting shaft 551 both extend along the axial direction of the feeding roller 21; the second gear 52 is sleeved on the fifth connecting shaft 551, fixed relative to the fifth connecting shaft 551, and located between the two fifth gears 55, and the teeth of the second gear 52 are engaged between the two adjacent feeding rollers 21. Thus, the second gear 52 can drive the feeding belt to move along the rack 22 under the driving of the motor 51, and during the movement of the feeding belt 2, each feeding roller 21 can rotate around its own axis under the matching of the first gear 211 and the rack 22, so that the bolt on the feeding roller 21 can also rotate.

The rolling brush 3 is rotatably arranged above the feeding belt 2 and right above the ash receiving groove 4, and is used for brushing and cleaning bolts placed on the installation groove 20, and a rotating shaft of the rolling brush 3 is substantially parallel to the feeding roller 21 and extends along the axial direction of the feeding roller 21. In this embodiment, the rolling brush 3 is installed above the feeding belt 2 through the connecting frame 30, two rotating shafts of the rolling brush 3 are respectively a first rotating shaft 31 and a second rotating shaft 32, the first rotating shaft 31 and the second rotating shaft 32 are arranged in the connecting frame 30 side by side at intervals along the moving direction of the feeding belt 2, two ends of the first rotating shaft 31 and the second rotating shaft 32 are constrained on the connecting frame 30 in a rotatable manner, and the rolling brush 3 is an annular brush body which is sleeved on the peripheries of the first rotating shaft and the second rotating shaft at the same time. When the first rotating shaft 31 and the second rotating shaft 32 rotate, the annular brush body can be driven to rotate. In order to drive the first and second rotating shafts to rotate, the end portions of the same side of the first rotating shaft 31 and the second rotating shaft 32 are respectively sleeved with a driving gear 33 and a driven gear 34, the driving gear 33 and the driven gear 34 are sleeved with a driving belt 35 which is meshed with the driving gear 33 and the driven gear 34 and is connected end to end, and an output shaft of the motor 51 is in transmission connection with the first rotating shaft 31 so as to drive the first rotating shaft 31 and the second rotating shaft 32 to rotate synchronously. In this embodiment, the output shaft of the motor 51 is in transmission connection with the first rotating shaft 31 through the third gear 53, the sixth gear 56 and the seventh gear 57, wherein the sixth gear 56 is engaged with the third gear 53, and the seventh gear 57 is sleeved on the end of the first rotating shaft 31 and engaged with the sixth gear 56.

The height adjusting assembly 6 is connected to the connecting frame 30 for adjusting the height of the connecting frame 30. This height adjusting assembly 6 has two sets and sets up along the moving direction interval of pay-off area 2, each height adjusting assembly 6 of group is including screw rod 61, nut 62, connecting piece 63, spring 64, screw rod 61 is vertical to be set up and fixed relative base 1, nut 62 threaded connection is on screw rod 61, the periphery at screw rod 61 is established to spring 64 cover, and spring 64's lower extreme butt is on the up end of nut 62, spring 64's upper end is located the top on screw rod 61 top and retrains on above-mentioned connecting piece 63, so that connecting piece 63 has the trend of rebound all the time, and this connecting piece 63 links to each other with the carriage 30. In this embodiment, the connecting member 63 has a cover structure with an opening at the bottom, and the upper end of the spring 64 is inserted into the opening of the connecting member (the connecting member 63 may have a structure with a protrusion extending downward at the center of the bottom wall, and the upper end of the spring is fitted around the outer periphery of the protrusion and abuts against the bottom wall of the connecting member 63). In this way, the height of the coupling member 63 can be finely adjusted by rotating the nut 62, and the height of the coupling frame 30 and the height of the roller brush 3 in the coupling frame 30 can be finely adjusted, and the fine adjustment of the height does not affect the meshing between the gears. The structure of the height adjusting assembly 6 is shown in fig. 6 and 7.

The dust hood 7 has a dust suction chamber 70 with a downward opening, and the dust hood 7 is disposed above the roller brush 3 with the opening of the dust suction chamber 70 facing the roller brush 3. The dust suction fan 71 is located at the right side of the dust suction cover 7 (as shown in fig. 2 and 3), and an air inlet end of the dust suction fan 71 is communicated with the dust suction chamber 70. An air outlet end 71a of the dust collection fan 71 is positioned above the feeding belt 2 and at the downstream of the cleaning part 2a, and a filter element 72 is arranged between the air inlet end and the air outlet end 71a of the dust collection fan 71. The filter member 72 is a filter net detachably provided on the dust suction fan 71, thereby facilitating cleaning and replacement of the filter net.

The oiling device 9 is arranged above the feeding belt 2, is positioned on the right side of the air outlet end 71a of the dust collection fan 71, and is positioned right above the oil receiving groove 90. The oiling device 9 comprises an oil outlet member 91 with an oil outlet facing downwards and opposite to the feeding belt 2, and a brush 92 arranged at the downstream of the oil outlet member 91, wherein the brush head of the brush 92 faces downwards and is opposite to the feeding belt 2.

Like this, when needs clean the bolt, can be with a plurality of bolts from the left side input of base 1 (as shown in fig. 2, 3) to place on the pay-off belt 2 of round brush 3 below, round brush 3 scrubs the bolt earlier, in order to carry out the rust cleaning scrubbing to the bolt, and waste residue, filth etc. that brush down can be collected to connecing in the ash chute 4, and dust etc. that the round brush produced can pass through dust cage 7 and adsorb to filtering piece 72 on. The bolts brushed by the roller brush 3 enter the cleaning tank 8 along with the movement of the feeding belt 2, and floating dust, light oil stain and the like attached to the bolts are cleaned at one time through the rotation of the bolts in the cleaning tank 8 and the vibration of the cleaning tank 8, so that the surfaces of the bolts are smooth. The cleaned bolt is dried by blowing under the action of the air outlet end 71a of the dust suction fan 71. After the dried bolt is oiled and brushed by the oiling device 9, grease is uniformly attached to the surface of the bolt, and the lubricating quality is ensured. The bolts that have entered the oiling device 9 are delivered from the right side of the base 1.

The bolt cleaner of this embodiment has following effect:

1. the environment-friendly and dust-free integrated waste treatment device is environment-friendly in site, free of oil stain and capable of performing centralized treatment on waste, and greatly improves working conditions and working environment;

2. the working efficiency is 6-10 times of that of the original manual and semi-mechanical operation;

3. the qualified rate of cleaning the old bolts on site reaches more than 90 percent, and the effects of energy conservation and consumption reduction are obvious;

4. the machine has the advantages of simple structure, clear principle, simple maintenance, convenient transportation and strong adaptability;

5. the machine is simple to operate, convenient and understandable in training and fast to master;

6. the power use is small, and the energy-saving and environment-friendly advantages are obvious;

7. reasonable structure and closed safety protection in place.

Claims

1. A bolt cleaning machine comprising:

a base (1) having a top wall;

it is characterized by also comprising:

the feeding belt (2) is movably arranged on the top wall of the base (1), the feeding belt (2) comprises a plurality of feeding roller columns (21) which are arranged side by side along the moving direction and are parallel to the top wall of the base (1), and an installation groove (20) for placing bolts is formed between every two adjacent feeding roller columns (21);

the rolling brush (3) is arranged above the feeding belt (2) in a rotatable mode and used for brushing bolts placed on the mounting groove (20), and a rotating shaft of the rolling brush (3) is basically parallel to the feeding roller (21) and extends along the axial direction of the feeding roller (21);

and the output end of the driving piece (5) acts on the feeding belt (2) so as to drive the feeding belt (2) to move.

2. The bolt cleaning machine of claim 1, wherein: the device is characterized by also comprising racks (22) extending along the moving direction of the feeding belt (2), wherein the racks (22) are at least two and are respectively arranged corresponding to two ends of each feeding roller column (21), two ends of each feeding roller column (21) are respectively provided with a first gear (211) matched with the racks (22), and each first gear (211) is coaxially arranged with the corresponding feeding roller column (21); the driving piece (5) comprises a motor (51) and a second gear (52) in transmission connection with an output shaft of the motor (51), and the teeth of the second gear (52) are meshed between two adjacent feeding rollers (21).

3. The bolt cleaning machine of claim 2, wherein: the utility model discloses a novel roller brush, including feeding belt (2), round brush (3), connecting frame (30), the top at feeding belt (2) is installed through connecting frame (30), the pivot of round brush (3) has two at least, is first pivot (31), second pivot (32) respectively, first pivot (31), second pivot (32) set up in connecting frame (30) along the moving direction of feeding belt (2) interval side by side, and the both ends of first pivot (31), second pivot (32) are in order can the pivoted mode restraint on connecting frame (30), round brush (3) are established the cyclic annular brush body in first, second pivot periphery for the cover simultaneously.

4. The bolt cleaning machine of claim 3, wherein: the end parts of the same side of the first rotating shaft (31) and the second rotating shaft (32) are respectively sleeved with a driving gear (33) and a driven gear (34), the driving gear (33) and the driven gear (34) are sleeved with a driving belt (35) which is meshed with the driving gear (33) and the driven gear (34) and is connected end to end, and an output shaft of the motor (51) is in transmission connection with the first rotating shaft (31) through a transmission mechanism.

5. The bolt cleaning machine of claim 3, wherein: the height adjusting device also comprises a height adjusting component (6) which is connected with the connecting frame (30) and is used for adjusting the height of the connecting frame (30).

6. The bolt cleaning machine of claim 5, wherein: the height adjusting assembly (6) has at least two sets and sets up along the moving direction interval of pay-off area (2), and each height adjusting assembly (6) of group is including screw rod (61), nut (62), connecting piece (63), spring (64), screw rod (61) vertical setting and relative base (1) are fixed, nut (62) threaded connection is on screw rod (61), the periphery at screw rod (61) is established in spring (64) cover, and the lower extreme butt of spring (64) is on the up end of nut (62), and the upper end of spring (64) is located the top on screw rod (61) top and retrains on connecting piece (63), so that connecting piece (63) have the trend of rebound all the time, and this connecting piece (63) with connect frame (30) link to each other.

7. A bolt cleaning machine according to any one of claims 1 to 6, wherein: still including suction hood (7), dust absorption fan (71), suction hood (7) have opening dust absorption chamber (70) down, just above the above-mentioned round brush (3) is located in suction hood (7), the opening in dust absorption chamber (70) with round brush (3) are relative, the air inlet end of dust absorption fan (71) with dust absorption chamber (70) are linked together.

8. The bolt cleaning machine of claim 7, wherein: the cleaning device is characterized by further comprising a cleaning groove (8), wherein the cleaning groove (8) is provided with a cleaning cavity (80) with an open top, the cleaning groove (8) is located at the downstream of the rolling brush (3) along the moving direction of the feeding belt (2), the feeding belt (2) crosses over from the top of the cleaning groove (8), and part of the feeding belt (2) is located in the cleaning cavity (80) to form a cleaning part (2 a).

9. The bolt cleaning machine of claim 8, wherein: an air outlet end (71a) of the dust collection fan (71) is positioned above the feeding belt (2) and is positioned at the downstream of the cleaning part (2a), and a filter element (72) is arranged between the air inlet end and the air outlet end (71a) of the dust collection fan (71).

10. The bolt cleaning machine of claim 9, wherein: the dust collection fan is characterized by further comprising an oiling device (9) which is located at the downstream of the air outlet end (71a) of the dust collection fan (71) and located above the feeding belt (2), and an oil receiving groove (90) which is located below the feeding belt (2), wherein the oiling device (9) comprises an oil outlet piece (91) with an oil outlet facing downwards and opposite to the feeding belt (2), and a brush (92) which is arranged at the downstream of the oil outlet piece (91), a brush head of the brush (92) faces downwards and is opposite to the feeding belt (2), the oil receiving groove (90) is provided with an oil receiving cavity (900) with an open top, and the top of the oil receiving cavity is opposite to the oiling device (9).