CN113909587A - Simple special device for repairing electric power fitting bolt on site and operation method - Google Patents
Simple special device for repairing electric power fitting bolt on site and operation method Download PDFInfo
- Publication number
- CN113909587A CN113909587A CN202111191409.2A CN202111191409A CN113909587A CN 113909587 A CN113909587 A CN 113909587A CN 202111191409 A CN202111191409 A CN 202111191409A CN 113909587 A CN113909587 A CN 113909587A
- Authority
- CN
- China
- Prior art keywords
- repairing
- sleeve
- screw
- nut
- output shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G9/00—Working screws, bolt heads, or nuts in conjunction with thread cutting, e.g. slotting screw heads or shanks, removing burrs from screw heads or shanks; Finishing, e.g. polishing, any screw-thread
- B23G9/009—Thread cleaning or repairing
Abstract
The invention discloses a simple special device for repairing an electric power fitting bolt on site and an operation method, and relates to the technical field of electric power tools, the simple special device comprises a hand-held fixed seat, wherein a power transmission mechanism is fixedly connected to the hand-held fixed seat, and one end of the power transmission mechanism is fixedly connected with a screw external thread repairing mechanism; in this scheme, mainly by power transmission mechanism, screw rod external screw thread repair body, nut internal thread repair body triplex, power transmission mechanism provides power, can pass through the input through the manual handle of shaking and transmit torsion for planetary reducer, planetary reducer passes through torsion grow after the deceleration, output shaft and hand fixing base rotate in step, output shaft and connection fixing base can be used to connecting screw rod external screw thread repair body, nut internal thread repair body carries out the interior, the restoration operation of external screw thread, connecting screw rod external screw thread repair body, nut internal thread repair body all can install respectively and carry out the operation on power transmission mechanism, the dismouting is nimble, it is portable.
Description
Technical Field
The invention relates to the technical field of electric power tools, in particular to a simple special device for repairing an electric power fitting bolt on site and an operation method.
Background
At present, the maintenance, overhaul and rush-repair of the power transmission line are mostly carried out in the outdoor remote environment, and in the operation process of assembling the iron tower, changing the stay wire of the tower and supplementing the tower material, the problem that the bolt of the electric power fitting is often subjected to oxidation corrosion and thread damage to cause the normal disassembly and replacement is solved. The more common cases are as follows: 1. when the old pole tower and the old stay wire hardware are operated in severe outdoor environment for a long time, the screw and the nut are easily oxidized and rusted, so that the old pole tower and the old stay wire hardware cannot be normally disassembled. Aiming at special hardware tools, such as UT wire clamp bolts, for theft prevention, the screw teeth of the UT wire clamp are damaged manually after the installation is finished, and the nut cannot be normally disassembled during maintenance due to the addition of a technically improved anticorrosion and antirust project; 2. the foundation screw and the nut of the newly built tower and the UT wire clamp required by the replacement of the stay wire are also extremely easy to collide in the transportation process, so that the screw and the nut are damaged, and the nut cannot be normally detached. The problem that the screw and the nut cannot be normally disassembled is solved, and the conventional solution is to break and remove the screw and the nut by adopting an electric cutting tool or hydraulic cutting equipment. The method is feasible, but the time and labor are wasted in high-altitude operation, and no spare parts are needed to be replaced in emergency repair operation.
A simple special device for repairing the electric power fitting bolt on site is planned to be developed, and the device can be used for repairing the external thread of the screw and the internal thread of the nut. The whole device is light and portable, is convenient for high-altitude field operation, has wide application range, and is suitable for repairing the threads of screws and nuts with the sizes of 16-36, so that the problem that the screws and the nuts cannot be disassembled is solved, and the working efficiency is improved.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a simple special device and an operation method for repairing an electric power fitting bolt on site, and the device and the operation method have the characteristics of light weight, portability, convenience for high-altitude field operation and wide application range.
In order to achieve the purpose, the invention provides the following technical scheme:
a simple special device for repairing an electric power fitting bolt on site comprises a hand fixing seat, wherein a power transmission mechanism is fixedly connected to the hand fixing seat, and one end of the power transmission mechanism is fixedly connected with a screw external thread repairing mechanism.
By adopting the technical scheme, the screw thread is repaired by matching the hand-held fixed seat and the power transmission mechanism.
Further, power transmission mechanism includes the handle, fixedly connected with application of force pole on the handle, fixedly connected with handle adapter sleeve on the application of force pole, handle adapter sleeve cover is established on first power output shaft, and first power output shaft sets up on planetary reducer, and planetary reducer's other end fixedly connected with second power output shaft, planetary reducer fixed mounting is on hand fixing base.
By adopting the technical scheme, the power transmission mechanism is utilized to control the screw external thread repairing mechanism and the nut internal thread repairing mechanism to work.
Further, screw rod external screw thread repair body includes two linking arms, and two linking arms all set up on hand fixing base, and the mounting hole has been seted up to the position that the surface of hand fixing base corresponds the linking arm, has also seted up the locating hole on the linking arm, can dismantle through a plurality of first locking screws between two linking arms and be connected with the fixed cover of nut, is provided with in the fixed cover of nut and treats the repair nut, is provided with the tap between two linking arms, and the connection can be dismantled on second power output shaft to the tap.
Through adopting above-mentioned technical scheme, utilize screw rod external screw thread repair body to carry out screw thread repair to the screw rod.
Further, fixedly connected with nut internal thread repair mechanism on the second power output shaft, nut internal thread repair mechanism include connecting sleeve, and connecting sleeve's one end is located the outside of hand fixing base, and the mounting hole has been seted up to the position that connecting sleeve outer surface corresponds the fixed orifices, the laminating has the parallel key in the second power output shaft outside, and parallel key fixed connection is in connecting sleeve, and the inside die sleeve that is provided with of connecting sleeve, the outside of die sleeve can be dismantled with connecting sleeve through second locking screw and be connected, fixedly connected with round die in the die sleeve.
Through adopting above-mentioned technical scheme, utilize nut internal thread repair mechanism to carry out internal thread repairing to the nut.
An operation method of a simple special device for repairing an electric power fitting bolt on site specifically comprises the following steps:
s1, when the nut needs to be repaired, fixing the fixing hole and the positioning hole together by using a screw, fixing the connecting arm on the hand fixing seat, fixing the nut to be repaired by using the nut fixing sleeve, and rotating the hand handle to perform operation, wherein the second power output shaft is driven to rotate under the action of the first power output shaft and the planetary reducer;
s2, the planetary reducer mainly plays a role in transmitting output torque, large torque can be output after speed reduction and speed change of the planetary reducer, the purpose of saving labor is achieved, the second power output shaft drives the screw tap to rotate when rotating, and the nut to be repaired is subjected to thread repair;
s3, if the screw is required to be repaired, the connecting sleeve is disassembled by loosening the bolts, the mounting holes and the fixing holes are mounted together by the bolts, the purpose of fixing the connecting sleeve is achieved, the effect of torque transmission is achieved, the rotation of the connecting sleeve can be effectively controlled, the circular die can be driven by the die sleeve to rotate when the connecting sleeve rotates, and the circular die can be rotated outside the screw to repair the screw.
In conclusion, the invention has the following beneficial effects:
in this scheme, mainly by power transmission mechanism, screw rod external screw thread repair body, nut internal thread repair body triplex, power transmission mechanism provides power, can transmit torsion for planetary reducer through the input through the manual handle that shakes, planetary reducer passes through the speed reduction back torsion grow, and transmit to the output shaft, the output shaft rotates with hand fixing base is synchronous, the output shaft can be used to connecting screw rod external screw thread repair body with connecting the fixing base, nut internal thread repair body carries out the interior, the restoration operation of external screw thread, connecting screw rod external screw thread repair body, nut internal thread repair body all can install respectively and carry out the operation on power transmission mechanism, the dismouting is nimble, it is portable.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic right-view perspective view of the present invention;
FIG. 3 is a schematic view of a front view of a partial cross-sectional structure of the present invention;
FIG. 4 is a schematic perspective view of the screw thread repairing mechanism according to the present invention;
fig. 5 is a schematic view of a front partial cross-sectional structure of the screw male thread repairing mechanism of the present invention.
In the figure:
1. a hand fixing seat; 2. a power transmission mechanism; 21. a handle; 22. a stressing rod; 23. a first power take-off shaft; 24. a flat bond; 25. a second power take-off shaft; 26. a handle connecting sleeve; 27. a fixing hole; 28. a planetary reducer; 3. a screw external thread repair mechanism; 31. tapping; 32. a connecting arm; 33. a first locking screw; 34. a nut fixing sleeve; 36. a nut to be repaired; 4. a nut internal thread repair mechanism; 41. a connecting sleeve; 42. round dies; 43. a die sleeve; 44. and a second locking screw.
Detailed Description
Example (b):
the present invention is described in further detail below with reference to figures 1-5.
Referring to fig. 1-5, the present invention provides a technical solution: a simple special device for repairing an electric power fitting bolt on site comprises a hand fixing seat 1, wherein a power transmission mechanism 2 is fixedly connected to the hand fixing seat 1, the power transmission mechanism 2 comprises a handle 21, a force application rod 22 is fixedly connected to the handle 21, a handle connecting sleeve 26 is fixedly connected to the force application rod 22, the handle connecting sleeve 26 is sleeved on a first power output shaft 23, the first power output shaft 23 is arranged on a planetary reducer 28, the other end of the planetary reducer 28 is fixedly connected with a second power output shaft 25, and the planetary reducer 28 is fixedly installed on the hand fixing seat 1;
the specific implementation mode is as follows: the handheld handle 21 rotates to carry out operation, the second power output shaft 25 is driven to rotate under the action of the first power output shaft 23 and the planetary speed reducer 28, the planetary speed reducer 28 mainly plays a role in transmitting output torque, and can output large torque after speed change through planetary speed reduction so as to achieve the purpose of labor saving, the arranged handheld fixing seat 1 is used for being connected with the screw external thread repairing mechanism 3 or the nut internal thread repairing mechanism 4, and meanwhile, the handheld fixing seat is convenient to hold by a hand during operation, so that the handheld fixing seat is convenient to operate.
One end of the power transmission mechanism 2 is fixedly connected with a screw external thread repairing mechanism 3, the screw external thread repairing mechanism 3 comprises two connecting arms 32, the two connecting arms 32 are arranged on the hand-held fixed seat 1, the outer surface of the hand-held fixed seat 1 is provided with mounting holes corresponding to the positions of the connecting arms 32, the connecting arms 32 are also provided with positioning holes, a nut fixing sleeve 34 is detachably connected between the two connecting arms 32 through a plurality of first locking screws 33, a nut 36 to be repaired is arranged in the nut fixing sleeve 34, a tap 31 is arranged between the two connecting arms 32, and the tap 31 is detachably connected to the second power output shaft 25;
the specific implementation mode is as follows: the fixing holes 27 and the positioning holes are fixed together by screws, the connecting arm 32 is fixed on the hand fixing seat 1, the nut 36 to be repaired is fixed by the nut fixing sleeve 34, the screw tap 31 is driven to rotate when the second power output shaft 25 rotates, and the screw thread of the nut 36 to be repaired is repaired.
The nut internal thread repairing mechanism 4 is fixedly connected to the second power output shaft 25, the nut internal thread repairing mechanism 4 comprises a connecting sleeve 41, one end of the connecting sleeve 41 is located on the outer side of the hand-held fixed seat 1, a mounting hole is formed in the position, corresponding to the fixing hole 27, of the outer surface of the connecting sleeve 41, a flat key 24 is attached to the outer side of the second power output shaft 25, the flat key 24 is fixedly connected to the inside of the connecting sleeve 41, a die sleeve 43 is arranged inside the connecting sleeve 41, the outer side of the die sleeve 43 is detachably connected with the connecting sleeve 41 through a second locking screw 44, and a round die 42 is fixedly connected to the inside of the die sleeve 43;
the specific implementation mode is as follows: utilize the bolt to be in the same place mounting hole and fixed orifices 27 installation, reach the purpose fixed to adapter sleeve 41, and possess the effect of transmission torque power, can effective control adapter sleeve 41 rotatory, adapter sleeve 41 can drive round die 42 rotatory through die sleeve 43 when rotatory, round die 42 can carry out the screw thread restoration to it in the screw rod outside is rotatory, and round die 42 can conveniently be dismantled and change it to the second locking screw 44 of setting.
An operation method of a simple special device for repairing an electric power fitting bolt on site specifically comprises the following steps:
s1, when the nut needs to be repaired, the fixing hole 27 and the positioning hole are fixed together by a screw, the connecting arm 32 is fixed on the hand-held fixing seat 1, the nut 36 to be repaired is fixed by the nut fixing sleeve 34, the hand-held handle 21 rotates to perform operation, and at the moment, the second power output shaft 25 is driven to rotate under the action of the first power output shaft 23 and the planetary reducer 28;
s2, the planetary reducer 28 mainly plays a role in transmitting output torque, large torque can be output after planetary reduction and speed change, the purpose of saving labor is achieved, the second power output shaft 25 drives the screw tap 31 to rotate when rotating, and screw thread repair is carried out on the nut 36 to be repaired;
s3, if the screw is required to be repaired, the connecting sleeve 41 is detached by loosening the bolts, the mounting hole and the fixing hole 27 are mounted together by using the bolts, the purpose of fixing the connecting sleeve 41 is achieved, the torque transmission function is achieved, the rotation of the connecting sleeve 41 can be effectively controlled, the round die 42 can be driven to rotate by the die sleeve 43 when the connecting sleeve 41 rotates, and the round die 42 can rotate outside the screw to repair the screw.
The working principle is as follows: when the nut needs to be repaired, the fixing hole 27 and the positioning hole are fixed together by a screw, the connecting arm 32 is fixed on the handheld fixing seat 1, the nut 36 to be repaired is fixed by the nut fixing sleeve 34, the handheld handle 21 rotates to perform operation, at the moment, the first power output shaft 23 and the planetary reducer 28 drive the second power output shaft 25 to rotate, the planetary reducer 28 mainly plays a role in transmitting output torque force, large torque can be output after planetary speed reduction and speed change, so that the purpose of labor saving is achieved, the second power output shaft 25 drives the tap 31 to rotate when rotating, and the nut 36 to be repaired is subjected to thread repair, if the screw needs to be repaired, the connecting sleeve 41 is detached by loosening the bolt, the mounting hole and the fixing hole 27 are mounted together by the bolt, so that the purpose of fixing the connecting sleeve 41 is achieved, and the function of transmitting torque force is achieved, can effective control connecting sleeve 41 rotatory, connecting sleeve 41 can drive round die 42 rotatory through die sleeve 43 when rotatory, and round die 42 can carry out the screw thread restoration to it in the screw rod outside rotation.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (8)
1. The simple special device for repairing the electric power fitting bolt on site comprises a hand fixing seat (1) and is characterized in that a power transmission mechanism (2) is fixedly connected to the hand fixing seat (1), and a screw external thread repairing mechanism (3) is fixedly connected to one end of the power transmission mechanism (2).
2. The simple and special device for repairing the electric power fitting bolt on site as claimed in claim 1, wherein the power transmission mechanism (2) comprises a handle (21), the handle (21) is fixedly connected with a stress application rod (22), and the stress application rod (22) is fixedly connected with a handle connection sleeve (26).
3. The simple and special device for on-site repairing of the electric power fitting bolt according to claim 2, wherein the handle connecting sleeve (26) is sleeved on the first power output shaft (23), the first power output shaft (23) is arranged on the planetary reducer (28), the other end of the planetary reducer (28) is fixedly connected with the second power output shaft (25), and the planetary reducer (28) is fixedly installed on the hand-held fixing seat (1).
4. The simple and special device for on-site repairing of the electric power fitting bolt according to claim 1, wherein the screw external thread repairing mechanism (3) comprises two connecting arms (32), the two connecting arms (32) are both arranged on the hand-held fixing seat (1), a mounting hole is formed in the outer surface of the hand-held fixing seat (1) corresponding to the position of the connecting arm (32), and a positioning hole is also formed in the connecting arm (32).
5. The simple and special device for on-site repairing of the electric power fitting bolt according to claim 4, wherein a nut fixing sleeve (34) is detachably connected between the two connecting arms (32) through a plurality of first locking screws (33), a nut (36) to be repaired is arranged in the nut fixing sleeve (34), a screw tap (31) is arranged between the two connecting arms (32), and the screw tap (31) is detachably connected to the second power output shaft (25).
6. The simple and special device for on-site repairing of the electric power fitting bolt according to claim 1, wherein the second power output shaft (25) is fixedly connected with a nut internal thread repairing mechanism (4), the nut internal thread repairing mechanism (4) comprises a connecting sleeve (41), one end of the connecting sleeve (41) is located on the outer side of the hand-held fixed seat (1), and a mounting hole is formed in the outer surface of the connecting sleeve (41) corresponding to the position of the fixing hole (27).
7. The simple and special device for on-site repairing of the electric power fitting bolt according to claim 6, wherein a flat key (24) is attached to the outer side of the second power output shaft (25), the flat key (24) is fixedly connected in the connecting sleeve (41), a die sleeve (43) is arranged inside the connecting sleeve (41), the outer side of the die sleeve (43) is detachably connected with the connecting sleeve (41) through a second locking screw (44), and a circular die (42) is fixedly connected in the die sleeve (43).
8. The operation method of the simple and special device for repairing the electric power fitting bolt on the spot according to any one of claims 1 to 7 is characterized by comprising the following steps:
s1, when the nut needs to be repaired, the fixing hole (27) and the positioning hole are fixed together by a screw, the connecting arm (32) is fixed on the hand fixing seat (1), the nut (36) to be repaired is fixed by the nut fixing sleeve (34), the hand handle (21) rotates to perform operation, and at the moment, the second power output shaft (25) is driven to rotate under the action of the first power output shaft (23) and the planetary reducer (28);
s2, the planetary reducer (28) mainly plays a role in transmitting output torque, large torque can be output after speed reduction and speed change of the planetary reducer so as to achieve the purpose of labor saving, the second power output shaft (25) drives the screw tap (31) to rotate when rotating, and the screw thread of the nut (36) to be repaired is repaired;
s3, if the screw is required to be repaired, the connecting sleeve (41) is detached by loosening the bolts, the mounting hole and the fixing hole (27) are mounted together by utilizing the bolts, the purpose of fixing the connecting sleeve (41) is achieved, the effect of torque transmission force is achieved, the rotation of the connecting sleeve (41) can be effectively controlled, the round die (42) can be driven to rotate by the die sleeve (43) when the connecting sleeve (41) rotates, and the round die (42) can rotate outside the screw to repair the screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111191409.2A CN113909587A (en) | 2021-10-13 | 2021-10-13 | Simple special device for repairing electric power fitting bolt on site and operation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111191409.2A CN113909587A (en) | 2021-10-13 | 2021-10-13 | Simple special device for repairing electric power fitting bolt on site and operation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113909587A true CN113909587A (en) | 2022-01-11 |
Family
ID=79240105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111191409.2A Pending CN113909587A (en) | 2021-10-13 | 2021-10-13 | Simple special device for repairing electric power fitting bolt on site and operation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113909587A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050081684A1 (en) * | 2003-10-20 | 2005-04-21 | Tai-Her Yang | Wrench driven rotation hand tool with side handle |
| CN2912923Y (en) * | 2005-09-27 | 2007-06-20 | 邵洁清 | Labor saving spanner adapted for trolley |
| CN201049408Y (en) * | 2006-07-06 | 2008-04-23 | 王海平 | Automatic tapping and threading device for lathe |
| CN201267907Y (en) * | 2008-08-31 | 2009-07-08 | 濮阳市信宇石油机械化工有限公司 | Machine for repairing screw thread |
| CN202192340U (en) * | 2011-07-11 | 2012-04-18 | 沈阳远大铝业工程有限公司 | Manual and mechanical die handle |
| CN203649577U (en) * | 2013-09-07 | 2014-06-18 | 常州牧云自动化设备有限公司 | Automatic lead screw tapping machine |
| CN204657673U (en) * | 2015-03-18 | 2015-09-23 | 苏加强 | Electric power maintenance conducting rod threading device |
| CN107511543A (en) * | 2016-06-15 | 2017-12-26 | 宁波港股份有限公司北仑第二集装箱码头分公司 | A kind of tire bolt thread repairing device |
| CN110480107A (en) * | 2019-08-14 | 2019-11-22 | 中国一冶集团有限公司 | A kind of foundation bolt prosthetic device |
| CN110899869A (en) * | 2019-12-29 | 2020-03-24 | 南京林业大学 | Manual thread machining device for shaft parts |
| CN210587522U (en) * | 2019-08-20 | 2020-05-22 | 南通江海金属科技发展有限公司 | Tapping equipment is used in copper nut production |
| CN213497000U (en) * | 2020-11-23 | 2021-06-22 | 赖秀红 | Bolt thread repairing structure |
-
2021
- 2021-10-13 CN CN202111191409.2A patent/CN113909587A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050081684A1 (en) * | 2003-10-20 | 2005-04-21 | Tai-Her Yang | Wrench driven rotation hand tool with side handle |
| CN2912923Y (en) * | 2005-09-27 | 2007-06-20 | 邵洁清 | Labor saving spanner adapted for trolley |
| CN201049408Y (en) * | 2006-07-06 | 2008-04-23 | 王海平 | Automatic tapping and threading device for lathe |
| CN201267907Y (en) * | 2008-08-31 | 2009-07-08 | 濮阳市信宇石油机械化工有限公司 | Machine for repairing screw thread |
| CN202192340U (en) * | 2011-07-11 | 2012-04-18 | 沈阳远大铝业工程有限公司 | Manual and mechanical die handle |
| CN203649577U (en) * | 2013-09-07 | 2014-06-18 | 常州牧云自动化设备有限公司 | Automatic lead screw tapping machine |
| CN204657673U (en) * | 2015-03-18 | 2015-09-23 | 苏加强 | Electric power maintenance conducting rod threading device |
| CN107511543A (en) * | 2016-06-15 | 2017-12-26 | 宁波港股份有限公司北仑第二集装箱码头分公司 | A kind of tire bolt thread repairing device |
| CN110480107A (en) * | 2019-08-14 | 2019-11-22 | 中国一冶集团有限公司 | A kind of foundation bolt prosthetic device |
| CN210587522U (en) * | 2019-08-20 | 2020-05-22 | 南通江海金属科技发展有限公司 | Tapping equipment is used in copper nut production |
| CN110899869A (en) * | 2019-12-29 | 2020-03-24 | 南京林业大学 | Manual thread machining device for shaft parts |
| CN213497000U (en) * | 2020-11-23 | 2021-06-22 | 赖秀红 | Bolt thread repairing structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205128970U (en) | Bore hole device convenient to on --spot major diameter cylinder hole of restoreing | |
| CN104889919A (en) | Electric pipe wrench for threaded connection of reinforcing steel bar and connecting sleeve | |
| CN110142718A (en) | Bolt disassembly device | |
| CN205870398U (en) | Narrow space usage's spanner conversion equipment | |
| CN113909587A (en) | Simple special device for repairing electric power fitting bolt on site and operation method | |
| US11260516B1 (en) | Barring device attachment for providing engine maintenance | |
| CN212330860U (en) | Electric nut preassembling tool | |
| CN217394814U (en) | Quick adjusting wrench for turnbuckle | |
| CN202910420U (en) | Steel pipe scaffold fastener screw maintaining device | |
| CN218534400U (en) | Hand tool for labor-saving dismounting ground anchor | |
| CN110340652A (en) | A kind of wheel hub pitch variable bearings automatic screwing down apparatus | |
| CN216423066U (en) | Grooving device for pipeline installation engineering | |
| CN215657995U (en) | Double-power-driven track drilling device | |
| CN215699572U (en) | Circumferentially distributed group bolt fastening device | |
| CN220882154U (en) | Electric wrench convenient for replacing sleeve | |
| CN216991770U (en) | Bolt fastening torque increaser for power transmission line iron tower | |
| CN204772286U (en) | Pneumatic spanner | |
| CN220154841U (en) | High-pressure gate switch tool | |
| CN218556206U (en) | Portable throwing and retreating device for ball valve maintenance sealing mechanical locking ingot | |
| CN201327299Y (en) | Furnace dismantling machine | |
| CN217813302U (en) | Hydraulic reamer with multiple excitation modes | |
| CN202824847U (en) | Manual operated cutting machine | |
| CN214236073U (en) | Simple steel bar cutting device | |
| CN212471318U (en) | Special dismounting device of lathe main shaft | |
| CN219788236U (en) | Special dismounting tool for screw speed reducer of material plug |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |