CN217393242U - Cleaning and cladding combined machining equipment for inner wall of cylindrical hydraulic oil cylinder - Google Patents
Cleaning and cladding combined machining equipment for inner wall of cylindrical hydraulic oil cylinder Download PDFInfo
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- CN217393242U CN217393242U CN202221605545.1U CN202221605545U CN217393242U CN 217393242 U CN217393242 U CN 217393242U CN 202221605545 U CN202221605545 U CN 202221605545U CN 217393242 U CN217393242 U CN 217393242U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
The utility model relates to the technical field of hydraulic cylinders, and discloses a cleaning and cladding composite processing device for the inner wall of a cylindrical hydraulic cylinder, which comprises a cleaning mechanism, wherein a moving mechanism is arranged outside the cleaning mechanism; the cleaning mechanism comprises an electric motor, a clamping sleeve is fixedly connected to the front end of the electric motor, a liquid guide pipe is fixedly communicated with the inside of the clamping sleeve, and a rotating rod is sleeved inside the clamping sleeve. This washing of cylindrical hydraulic cylinder inner wall melts and covers combined machining equipment, be convenient for the removal and the use of device through the handle, with the fixed back of cylindrical hydraulic cylinder, put into the hydro-cylinder with this device inside, inside the cleaning solution supplies joint sleeve through the catheter, joint sleeve and bull stick are sealed cup joints, the bull stick can rotate inside joint sleeve, the inside ring channel of joint sleeve and the through-hole intercommunication of bull stick, thereby make the cleaning solution get into inside the bull stick, spray tube and the inside intercommunication of bull stick, thereby make the cleaning solution follow the spray tube blowout, wipe the sponge and soak the humidity.
Description
Technical Field
The utility model relates to a hydraulic cylinder technical field specifically is a washing of cylindrical hydraulic cylinder inner wall melts and covers combined machining equipment.
Background
The hydraulic cylinder barrel is processed and is cut excessively or is worn and torn by using, the inner diameter of the cylinder barrel is possibly too large, the sealing performance of the oil cylinder is reduced, the oil cylinder becomes waste, the waste is repaired through a laser cladding technology along with the development of an additive technology, dirt on the inner wall of the oil cylinder needs to be cleaned before cladding of the cylinder barrel, and oil stain is removed through a chemical cleaning method generally at present.
When the inner wall of the oil cylinder is cleaned, the cylinder barrel of the oil cylinder is long, and the inner space is narrow and inconvenient to clean or is not thorough to clean.
Therefore, the cleaning and cladding composite processing equipment for the inner wall of the cylindrical hydraulic oil cylinder is provided for solving the problems in the background.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The not enough to prior art, the utility model provides a compound processing equipment is cladded in washing of cylindrical hydraulic cylinder inner wall possesses clean effectual, and moving mechanism advantage such as scalable has solved that the hydraulic cylinder is longer, the inside abluent problem of not being convenient for.
(II) technical scheme
In order to achieve the above object, the utility model provides a following technical scheme: a cleaning and cladding composite processing device for the inner wall of a cylindrical hydraulic oil cylinder comprises a cleaning mechanism, wherein a moving mechanism is arranged outside the cleaning mechanism;
the cleaning mechanism comprises a motor, a clamping sleeve is fixedly connected to the front end of the motor, a liquid guide pipe is fixedly communicated with the inside of the clamping sleeve, a rotating rod is sleeved inside the clamping sleeve, a spray pipe is fixedly communicated with the front end of the inside of the rotating rod, a sponge wiper is arranged on the outer portion of the front end of the rotating rod, and a handle is fixedly connected to the rear end of the motor;
the device is convenient to move and use by a handle, after a cylindrical hydraulic oil cylinder is fixed, the device is placed inside the oil cylinder, cleaning solution is fed into the clamping sleeve through a liquid guide pipe, the clamping sleeve is in sealing sleeve joint with a rotating rod, the rotating rod can rotate in the clamping sleeve, an annular groove in the clamping sleeve is communicated with a through hole of the rotating rod, so that the cleaning solution enters the rotating rod, a spray pipe is communicated with the inside of the rotating rod, so that the cleaning solution is sprayed out of the spray pipe, the sponge is wiped to wet, the sponge is wiped with strong hydroscopicity, the cleaning solution is stored, the rotating rod is driven by a motor to rotate, the rotating rod drives the sponge to wipe to rotate, the sponge is wiped to rotate and rub the inner wall, the cleaning solution in the sponge is thrown out under the action of centrifugal force, along with the rotation of the sponge, the cleaning solution is combined with the annular inner wall of the oil cylinder, the sponge which rotates at high speed and the cleaning solution act on the inner wall of the oil cylinder simultaneously, so as to dispel the dirt in the oil cylinder, the spray pipe is inserted with the rotating rod and can be detached, the inside of the oil cylinder is dried and cleaned by using the dry sponge wiper after cleaning, the inside is cleaner, the diameter of the sponge wiper is larger than the inner diameter of the oil cylinder, friction force is stronger, and cleaning effect is improved.
Moving mechanism is including fixed cover, the inside spring that is provided with of fixed cover, the telescopic link has been cup jointed to fixed cover inside, the inboard one end fixedly connected with spacing ring of telescopic link, telescopic link outside one end side fixedly connected with motor, the inside swing joint of telescopic link outside one end has the rubber gyro wheel.
Through fixed cover fixed connection around the motor is outside, make moving mechanism support motor balance, sponge of rethread motor front end is wiped and is supported with the hydro-cylinder inner wall, thereby make the device balanced stable in hydro-cylinder inside, support the telescopic link through the spring, make the telescopic link have elasticity, thereby adapt to the size of circular hydro-cylinder internal diameter, four rubber rollers support motor outside balance, rubber roller is the rubber material, increase frictional force, and do not harm the hydro-cylinder inner wall, it rotates to drive rubber roller through the motor, thereby make the motor remove at cylindrical hydraulic cylinder, the sponge that the motor drove the front end is wiped and is cleaned the hydro-cylinder inner wall, this structure only needs the length of extension catheter and connecting wire just can be applicable to the washing of longer cylindrical hydraulic cylinder inner wall.
Preferably, a plurality of through holes are formed in the rotating rod, an annular groove is formed in the clamping sleeve, and the annular groove sleeve of the clamping sleeve is sleeved outside the through hole of the rotating rod.
Through the sealed cup joint of joint cover and bull stick, the bull stick can rotate inside the joint cover, the inside ring channel of joint cover and the through-hole intercommunication of bull stick to inside making the cleaning solution get into the bull stick, the bull stick is inside to be provided with a plurality of through-holes, thereby make the stable intercommunication of joint cover and bull stick.
Preferably, the liquid guide pipe is fixedly communicated with the inside of the annular groove, the spray pipe is fixedly communicated with the through hole of the rotating rod, and the spray pipe is inserted into the rotating rod.
Inside catheter supplied the cleaning solution into the clamping sleeve, the spray pipe communicated with the inside of the rotating rod, so that the cleaning solution is sprayed out from the spray pipe and the sponge is wiped and soaked in moisture.
Preferably, the fixed sleeve is a circular sleeve, and the limiting ring is arranged inside the fixed sleeve.
The spacing ring sets up inside fixed cover, and the spacing ring is fixed with the telescopic link to carry on spacingly to the telescopic link, prevent that it breaks away from.
Preferably, the fixed sleeves are four and distributed in a circumferential array manner, and the fixed sleeves are fixedly connected to the outer wall of the motor.
The device is fixedly connected to the periphery outside the motor through the fixing sleeve, so that the moving mechanism can be used for supporting the motor in a balanced manner, and then the sponge wiper at the front end of the motor is used for supporting the inner wall of the oil cylinder, so that the device is balanced and stable in the oil cylinder.
Preferably, the bottom of the telescopic rod is provided with a rectangular groove, and the rubber roller is arranged in the rectangular groove.
The four rubber rollers support the outside of the motor in a balanced manner, and the rubber rollers are made of rubber materials, so that friction force is increased, and the inner wall of the oil cylinder is not damaged.
Preferably, the sponge eraser is circular in outer part, and the diameter of the sponge eraser is larger than that of the motor.
The sponge is wiped the outside and is circular, increases the diameter that the sponge was wiped and makes the sponge wipe good with hydro-cylinder inner wall laminating nature, increases clean effect.
Compared with the prior art, the utility model provides a washing of cylindrical hydraulic cylinder inner wall melts and covers combined machining equipment possesses following beneficial effect:
1. this cleaning cladding combined machining equipment of cylindrical hydraulic cylinder inner wall, through fixed cover fixed connection around the motor outside, make moving mechanism support motor balance, the sponge of rethread motor front end is wiped and is supported with the hydro-cylinder inner wall, thereby make the device balanced stable in hydro-cylinder inside, support the telescopic link through the spring, make the telescopic link have elasticity, thereby adapt to the size of circular hydro-cylinder internal diameter, four rubber rollers support motor outside balance, the rubber roller is the rubber material, increase frictional force, and do not harm the hydro-cylinder inner wall, it rotates to drive rubber roller through the motor, thereby make the motor remove at cylindrical hydraulic cylinder, the sponge that the motor drove the front end is wiped and is cleaned the hydro-cylinder inner wall, this structure only needs the washing that the length of extension catheter and connecting wire just can be applicable to longer cylindrical hydraulic cylinder inner wall.
2. The cleaning and cladding composite processing equipment for the inner wall of the cylindrical hydraulic oil cylinder is convenient for the device to move and use through a handle, the cylindrical hydraulic oil cylinder is fixed, the device is placed inside the oil cylinder, cleaning solution is fed into the clamping sleeve through a liquid guide pipe, the clamping sleeve is in sealing sleeve joint with a rotating rod, the rotating rod can rotate inside the clamping sleeve, an annular groove inside the clamping sleeve is communicated with a through hole of the rotating rod, so that the cleaning solution enters the rotating rod, a spray pipe is communicated with the inside of the rotating rod, so that the cleaning solution is sprayed out of the spray pipe, the sponge is wiped and wetted, the sponge is wiped with strong water absorption, the cleaning solution is stored, the rotating rod is driven to rotate by a motor, the rotating rod drives the sponge to wipe to rotate, the sponge wipe rotates and rubs against the inner wall, the cleaning solution inside the sponge wipe is thrown out under the action of centrifugal force, along with the rotation of the sponge wipe, the cleaning solution is combined with the annular inner wall of the oil cylinder, the sponge wipe and the cleaning solution rotating at high speed acts on the inner wall of the oil cylinder simultaneously, therefore, stains inside the oil cylinder are removed, the spray pipe is connected with the rotating rod in an inserted mode and can be detached, the inside of the oil cylinder is dried and cleaned by using a dry sponge wiper after cleaning, the inside is cleaner, the sponge wiper is larger than the inner diameter of the oil cylinder in diameter, friction force is stronger, and cleaning effect is improved.
Drawings
FIG. 1 is a schematic view of the moving mechanism of the present invention;
FIG. 2 is a schematic view of the moving mechanism of the present invention;
FIG. 3 is a schematic cross-sectional view of the cleaning mechanism of the present invention;
fig. 4 is a schematic view of the structure of the rotating rod of the present invention.
Wherein: 1. a cleaning mechanism; 2. a moving mechanism; 101. an electric motor; 102. a clamping sleeve; 103. a catheter; 104. a rotating rod; 105. a nozzle; 106. sponge wiping; 107. a handle; 201. fixing a sleeve; 202. a spring; 203. a telescopic rod; 204. a limiting ring; 205. a motor; 206. rubber roller.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
Please refer to fig. 1-4.
A cleaning and cladding composite processing device for the inner wall of a cylindrical hydraulic oil cylinder comprises a cleaning mechanism 1, wherein a moving mechanism 2 is arranged outside the cleaning mechanism 1;
the cleaning mechanism 1 comprises a motor 101, a clamping sleeve 102 is fixedly connected with the front end of the motor 101, a liquid guide pipe 103 is fixedly communicated with the interior of the clamping sleeve 102, a rotating rod 104 is sleeved with the interior of the clamping sleeve 102, a spray pipe 105 is fixedly communicated with the front end of the interior of the rotating rod 104, a sponge wiper 106 is arranged on the exterior of the front end of the rotating rod 104, and a handle 107 is fixedly connected with the rear end of the motor 101;
the device is convenient to move and use by a handle 107, after a cylindrical hydraulic oil cylinder is fixed, the device is placed in the oil cylinder, cleaning solution is supplied into a clamping sleeve 102 through a liquid guide pipe 103, the clamping sleeve 102 is in sealed sleeve joint with a rotating rod 104, the rotating rod 104 can rotate in the clamping sleeve 102, an annular groove in the clamping sleeve 102 is communicated with a through hole of the rotating rod 104, so that the cleaning solution enters the rotating rod 104, a spray pipe 105 is communicated with the inside of the rotating rod 104, so that the cleaning solution is sprayed out of the spray pipe 105 to wet a sponge wiper 106, the sponge wiper 106 has strong water absorption, the cleaning solution is stored, the rotating rod 104 is driven by a motor 101 to rotate, the rotating rod 104 drives the sponge wiper 106 to rotate, the sponge wiper 106 rotates and rubs the inner wall, the cleaning solution in the sponge wiper 106 is thrown out under the action of centrifugal force, the cleaning solution is combined with the annular inner wall of the oil cylinder along with the rotation of the sponge wiper 106, and the sponge wiper 106 rotating at high speed rotates to act on the inner wall of the oil cylinder simultaneously, therefore, stains inside the oil cylinder are removed, the spray pipe 105 is connected with the rotating rod 104 in an inserted mode and can be detached, the interior of the oil cylinder is dried and cleaned by using the dry sponge wiper 106 after cleaning, the interior is cleaner, the sponge wiper 106 is selected and used, the diameter of the sponge wiper 106 is larger than the inner diameter of the oil cylinder, friction force is stronger, and cleaning effect is improved.
Moving mechanism 2 includes fixed cover 201, and fixed cover 201 is inside to be provided with spring 202, and fixed cover 201 is inside to have cup jointed telescopic link 203, the inboard one end fixedly connected with spacing ring 204 of telescopic link 203, telescopic link 203 outside one end side fixedly connected with motor 205, the inside swing joint of telescopic link 203 outside one end has rubber roller 206.
Through fixed cover 201 fixed connection around motor 101 is outside, make moving mechanism 2 support motor 101 is balanced, 106 and the hydro-cylinder inner wall support are wiped to the sponge of rethread motor 101 front end, thereby make the device balanced stable in the hydro-cylinder inside, support telescopic link 203 through spring 202, make telescopic link 203 have elasticity, thereby adapt to the size of circular hydro-cylinder internal diameter, four rubber idler wheels 206 support motor 101 outside balance, rubber idler wheel 206 is the rubber material, increase frictional force, and do not harm the hydro-cylinder inner wall, it rotates to drive rubber idler wheel 206 through motor 205, thereby make motor 101 remove at cylindrical hydraulic cylinder, motor 101 drives the sponge of front end and wipes 106 and cleans the hydro-cylinder inner wall, this structure only needs the length of extension catheter 103 and connecting wire just can be applicable to the washing of longer cylindrical hydraulic cylinder inner wall.
A plurality of through holes are formed in the rotating rod 104, an annular groove is formed in the clamping sleeve 102, and the annular groove sleeve of the clamping sleeve 102 is sleeved outside the through holes of the rotating rod 104.
Through the sealed cup joint of joint cover 102 and bull stick 104, bull stick 104 can rotate in joint cover 102 inside, the inside ring channel of joint cover 102 and the through-hole intercommunication of bull stick 104 to make the cleaning solution get into inside the bull stick 104, the inside a plurality of through-holes that are provided with of bull stick 104, thereby make stable the intercommunication of joint cover 102 and bull stick 104.
The liquid guide pipe 103 is fixedly communicated with the inside of the annular groove, the spray pipe 105 is fixedly communicated with the through hole of the rotating rod 104, and the spray pipe 105 is inserted into the rotating rod 104.
The cleaning liquid is supplied to the inside of the clamping sleeve 102 through the liquid guide tube 103, and the spray tube 105 is communicated with the inside of the rotating rod 104, so that the cleaning liquid is sprayed out of the spray tube 105 to wet the sponge brush 106.
The fixing sleeve 201 is a circular sleeve, and the limiting ring 204 is arranged inside the fixing sleeve 201.
The spacing ring 204 is arranged inside the fixing sleeve 201, and the spacing ring 204 is fixed with the telescopic rod 203, so that the telescopic rod 203 is limited and prevented from being separated.
The fixed sleeve 201 is four and distributed in a circumferential array, and the fixed sleeve 201 is fixedly connected with the outer wall of the motor 101.
The fixed sleeve 201 is fixedly connected to the periphery outside the motor 101, so that the moving mechanism 2 supports the motor 101 in a balanced manner, and then the sponge wiper 106 at the front end of the motor 101 supports the inner wall of the oil cylinder, so that the device is balanced and stable in the oil cylinder.
The bottom of the telescopic rod 203 is provided with a rectangular groove, and the rubber roller 206 is arranged in the rectangular groove.
The four rubber rollers 206 support the motor 101 in an external balanced manner, and the rubber rollers 206 are made of rubber, so that friction force is increased, and the inner wall of the oil cylinder is not damaged.
The sponge brush 106 is circular outside, and the diameter of the sponge brush 106 is larger than that of the motor 101.
The outer part of the sponge wiper 106 is circular, and the diameter of the sponge wiper 106 is increased, so that the sponge wiper 106 is well attached to the inner wall of the oil cylinder, and the cleaning effect is improved.
When in use, the handle 107 is convenient for the device to move and use, after the cylindrical hydraulic oil cylinder is fixed, the device is placed in the oil cylinder, cleaning solution is supplied into the clamping sleeve 102 through the liquid guide pipe 103, the clamping sleeve 102 is hermetically sleeved with the rotating rod 104, the rotating rod 104 can rotate in the clamping sleeve 102, an annular groove in the clamping sleeve 102 is communicated with a through hole of the rotating rod 104, so that the cleaning solution enters the rotating rod 104, the spray pipe 105 is communicated with the inside of the rotating rod 104, so that the cleaning solution is sprayed out from the spray pipe 105 to wet the sponge wiper 106, the sponge wiper 106 has strong water absorption, the cleaning solution is stored, the rotating rod 104 is driven by the motor 101 to rotate, the rotating rod 104 drives the sponge wiper 106 to rotate, the sponge wiper 106 rubs against the inner wall, the cleaning solution in the sponge wiper 106 is thrown out under the centrifugal force, and is combined with the annular inner wall of the oil cylinder along with the rotation of the sponge wiper 106, the sponge that rotates at a high speed wipes 106 and cleaning solution simultaneously to the effect of hydro-cylinder inner wall to dispel the inside spot of hydro-cylinder, spray tube 105 is pegged graft with bull stick 104, can demolish, and what change dry sponge after the cleaning again wipes 106 makes inside cleaner to the inside dry cleanness of hydro-cylinder, and the sponge is wiped 106 and is chooseed for use the diameter to be greater than the hydro-cylinder internal diameter, and frictional force is stronger like this, improves clean effect.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a washing of cylindrical hydraulic cylinder inner wall melts and covers combined machining equipment, includes wiper mechanism (1), its characterized in that: a moving mechanism (2) is arranged outside the cleaning mechanism (1);
the cleaning mechanism (1) comprises an electric motor (101), the front end of the electric motor (101) is fixedly connected with a clamping sleeve (102), a liquid guide pipe (103) is fixedly communicated with the inside of the clamping sleeve (102), a rotating rod (104) is sleeved inside the clamping sleeve (102), a spray pipe (105) is fixedly communicated with the front end of the inside of the rotating rod (104), a sponge wiper (106) is arranged outside the front end of the rotating rod (104), and a handle (107) is fixedly connected with the rear end of the electric motor (101);
moving mechanism (2) are including fixed cover (201), fixed cover (201) inside is provided with spring (202), fixed cover (201) inside telescopic link (203) have been cup jointed, inboard one end fixedly connected with spacing ring (204) of telescopic link (203), telescopic link (203) outside one end side fixedly connected with motor (205), the inside swing joint of telescopic link (203) outside one end has rubber gyro wheel (206).
2. The cleaning and cladding combined machining equipment for the inner wall of the cylindrical hydraulic oil cylinder, according to claim 1, is characterized in that: the inside a plurality of through-holes that are provided with of bull stick (104), the inside annular groove that is provided with of joint cover (102), the annular groove cover cup joints in bull stick (104) through-hole outside of joint cover (102).
3. The cleaning, cladding and combined machining equipment for the inner wall of the cylindrical hydraulic oil cylinder as claimed in claim 1, characterized in that: the liquid guide pipe (103) is fixedly communicated with the interior of the annular groove, the spray pipe (105) is fixedly communicated with the through hole of the rotating rod (104), and the spray pipe (105) is inserted into the rotating rod (104).
4. The cleaning and cladding combined machining equipment for the inner wall of the cylindrical hydraulic oil cylinder, according to claim 1, is characterized in that: the fixed sleeve (201) is a circular sleeve, and the limiting ring (204) is arranged inside the fixed sleeve (201).
5. The cleaning and cladding combined machining equipment for the inner wall of the cylindrical hydraulic oil cylinder, according to claim 1, is characterized in that: the four fixing sleeves (201) are distributed in a circumferential array mode, and the fixing sleeves (201) are fixedly connected to the outer wall of the motor (101).
6. The cleaning and cladding combined machining equipment for the inner wall of the cylindrical hydraulic oil cylinder, according to claim 1, is characterized in that: the bottom of the telescopic rod (203) is provided with a rectangular groove, and the rubber roller (206) is arranged in the rectangular groove.
7. The cleaning and cladding combined machining equipment for the inner wall of the cylindrical hydraulic oil cylinder, according to claim 1, is characterized in that: the sponge eraser (106) is circular, and the diameter of the sponge eraser (106) is larger than that of the motor (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221605545.1U CN217393242U (en) | 2022-06-25 | 2022-06-25 | Cleaning and cladding combined machining equipment for inner wall of cylindrical hydraulic oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221605545.1U CN217393242U (en) | 2022-06-25 | 2022-06-25 | Cleaning and cladding combined machining equipment for inner wall of cylindrical hydraulic oil cylinder |
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| CN217393242U true CN217393242U (en) | 2022-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221605545.1U Active CN217393242U (en) | 2022-06-25 | 2022-06-25 | Cleaning and cladding combined machining equipment for inner wall of cylindrical hydraulic oil cylinder |
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| CN (1) | CN217393242U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116511166A (en) * | 2023-04-12 | 2023-08-01 | 徐州新兴达克罗科技有限公司 | Cylinder body laser rust cleaning equipment for hydro-cylinder reprocesses |
-
2022
- 2022-06-25 CN CN202221605545.1U patent/CN217393242U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116511166A (en) * | 2023-04-12 | 2023-08-01 | 徐州新兴达克罗科技有限公司 | Cylinder body laser rust cleaning equipment for hydro-cylinder reprocesses |
| CN116511166B (en) * | 2023-04-12 | 2023-11-03 | 山东理工职业学院 | Cylinder body laser rust cleaning equipment for hydro-cylinder reprocesses |
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