CN112372570A - Steel rolling mill reduction box gear and coupling disassembly tool - Google Patents
Steel rolling mill reduction box gear and coupling disassembly tool Download PDFInfo
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- CN112372570A CN112372570A CN202010991191.8A CN202010991191A CN112372570A CN 112372570 A CN112372570 A CN 112372570A CN 202010991191 A CN202010991191 A CN 202010991191A CN 112372570 A CN112372570 A CN 112372570A
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- 230000009467 reduction Effects 0.000 title claims abstract description 43
- 238000005096 rolling process Methods 0.000 title claims abstract description 42
- 230000008878 coupling Effects 0.000 title claims abstract description 11
- 238000010168 coupling process Methods 0.000 title claims abstract description 11
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 5
- 239000010959 steel Substances 0.000 title claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims abstract description 55
- 230000007246 mechanism Effects 0.000 claims abstract description 36
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 17
- 230000008569 process Effects 0.000 description 16
- 230000001771 impaired effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/026—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same fluid driven
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Abstract
The invention discloses a steel rolling mill reduction box gear and coupling disassembly tool, which comprises: a machine base; the first jacking plate is arranged on the base and provided with a first plate surface and a second plate surface which are arranged oppositely, a clamping groove is formed in the abutting surface, the clamping groove is used for an output shaft of a reduction gearbox of the rolling mill to pass through and penetrate the first jacking plate, and a transmission member connected to the output shaft abuts against the first plate surface of the first jacking plate; the pushing mechanism is arranged on the base and is opposite to the inner plate surface, and the pushing mechanism is used for being in transmission connection with the end part of the output shaft and pushing the output shaft of the reduction box of the rolling mill from the first plate surface to the second plate surface. According to the disassembly tool for the gear and the coupler of the reduction box of the rolling mill, the transmission component is disassembled in a mode of pushing the output shaft by the pushing mechanism, the disassembly mode of the transmission component is simple, the disassembly work is stable, and compared with the conventional disassembly mode of manually disassembling the transmission component, the disassembly tool has the advantages of safe disassembly and high disassembly efficiency.
Description
Technical Field
The invention belongs to the technical field of reduction box equipment of a rolling mill, and particularly relates to a tool for disassembling a gear and a coupler of a reduction box of the rolling mill.
Background
In a hot-rolling high-speed rod and wire production line, a large number of main reduction gearbox devices are arranged, for example, a rod-2 wire is taken as an example, 19 reduction gearboxes are arranged in a rolling mill area, after long-term high-load operation, equipment faults of coupler and gear failure easily occur, and the coupler and the gear failure need to be replaced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a dismounting tool for a reduction gearbox gear and a coupler of a rolling mill.
The technical purpose of the invention is realized by the following technical scheme: the utility model provides a frock is dismantled to rolling mill reducing gear box gear and shaft coupling, includes:
a machine base;
the first jacking plate is arranged on the base and provided with a first plate surface and a second plate surface which are arranged oppositely, a clamping groove is formed in the abutting surface and used for an output shaft of a reduction gearbox of the rolling mill to pass through and penetrate the first jacking plate, and a transmission member connected to the output shaft abuts against the first plate surface of the first jacking plate;
the pushing mechanism is arranged on the base and is opposite to the inner plate surface, and the pushing mechanism is in transmission connection with the end part of the output shaft and is used for pushing the output shaft of the reduction box of the rolling mill from the first plate surface to the second plate surface.
In one embodiment, the disassembling tool for the gear and the coupler of the reduction gearbox of the rolling mill further comprises a second jacking plate, the second jacking plate is arranged opposite to the first jacking plate and is provided with a third plate surface opposite to the first plate surface, and the jacking mechanism jacks and supports the third plate surface.
In one embodiment, the ejector mechanism comprises:
the first jack is supported on the third plate surface and is in transmission connection with the output shaft so as to drive the output shaft to push the second plate surface from the first plate surface;
and the second jack is arranged below the first jack and is in transmission connection with the first jack so as to drive the first jack to ascend or descend along the vertical direction.
In one embodiment, a piston rod of the first jack is connected with a push rod in a transmission manner, and the push rod is used for being connected with the end part of the output shaft so as to drive the output shaft to be pushed from the first plate surface to the second plate surface.
In one embodiment, a top plate is arranged at the clamping groove of the first plate surface and used for being supported by the transmission component, and a clamping hole is formed in the top plate and used for allowing the output shaft to penetrate through and be clamped.
In one embodiment, the locking hole of the top plate is provided with various sizes corresponding to the output shaft.
In one embodiment, a fixing rod is connected between the first top holding plate and the second top holding plate, so that the first top holding plate, the second top holding plate and the fixing rod form an integrated structure.
In one embodiment, the fixing rod is provided with a hoisting assembly, the hoisting assembly is provided with two hoisting ends, and the two hoisting ends are respectively in transmission connection with the top rod and the top plate so as to respectively drive the top rod and the top plate to ascend or descend.
In one embodiment, the hoisting assembly is slidably and slidably arranged on the fixing rod along the length direction of the fixing rod.
In one embodiment, the second supporting plate further has a fourth plate surface, the fourth plate surface is opposite to the third plate surface, and reinforcing ribs are disposed between the fourth plate surface and the base and between the second plate surface and the base.
In conclusion, the invention has the following beneficial effects:
the invention provides a disassembly tool for a reduction gearbox gear and a coupler of a rolling mill, which comprises a base, a first jacking plate and a jacking mechanism, wherein the first jacking plate and the jacking mechanism are arranged on the base, the reduction gearbox of the rolling mill is integrally lifted by a crane, and the output shaft of the reduction gearbox faces the opening of the clamping groove, and enters the groove bottom of the clamping groove from the opening, and further, the transmission component is propped against the first plate surface of the first propping plate, the output shaft is in transmission connection through the pushing end of the pushing mechanism and pushed to move relative to the transmission member until the output shaft is separated from the transmission member, the transmission component is disassembled in a mode of pushing the output shaft through the pushing mechanism, the disassembling mode of the transmission component is simple, the disassembling work is stable, and compared with the disassembling mode of manually disassembling the transmission component at present, the disassembling device has the advantages of safe disassembling and high disassembling efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural view of a disassembly tool for gears and a coupler of a reduction gearbox of a rolling mill, which is disclosed by the invention;
FIG. 2 is a schematic structural view of another view angle of the disassembly tool for the reduction gearbox gear and the coupling of the rolling mill of the invention;
FIG. 3 is a schematic view of the ejector member of FIG. 1 according to the present invention.
In the figure: 100. disassembling tooling for a reduction gearbox gear and a coupler of a rolling mill; 10. a machine base; 20. a first holding plate; 20a, a card slot; 30. a pushing mechanism; 31. a first jack; 32. a second jack; 40. a second holding plate; 50. a fastening rod; 51. a hoisting assembly; 60. a pushing assembly; 61. a top rod; 62. a top plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1-3, the invention discloses a disassembling tool 100 for a gear and a coupler of a reduction gearbox of a rolling mill, which comprises a machine base 10, and a first supporting plate 20 and a pushing mechanism 30 which are arranged on the machine base 10, and is used for disassembling a transmission component on an output shaft of the reduction gearbox of the rolling mill, clamping the output shaft on the first supporting plate 20, pushing the output shaft through the pushing component so that the output shaft moves relative to the transmission component, and further, the transmission component is continuously supported by the first supporting plate 20 until the pushed output shaft is out of the first supporting plate 20 and separated from the transmission component, and the transmission component is disassembled.
The rolling mill reduction gearbox gear and coupler disassembly tool 100 is used for disassembling the transmission component which is in transmission connection with the output shaft, so that daily maintenance and repair of the transmission component are realized.
The following specifically describes the disassembly tool 100 for the reduction gearbox gear and the coupler of the rolling mill, and comprises:
a machine base 10;
the first supporting plate 20 is arranged on the base 10 and is provided with a first plate surface and a second plate surface which are arranged oppositely, a clamping groove 20a is formed in the supporting surface, the clamping groove 20a is used for an output shaft of a reduction gearbox of a rolling mill to pass through and penetrate through the first supporting plate 20, and a transmission member connected to the output shaft is supported on the first plate surface of the first supporting plate 20;
the pushing mechanism 30 is arranged on the base 10 and is opposite to the inner plate surface, and the pushing mechanism 30 is used for being in transmission connection with the end part of the output shaft and pushing the output shaft of the reduction box of the rolling mill from the first plate surface to the second plate surface.
Specifically, the base 10 is rectangular and has two opposite sides, and the first supporting plate 20 and the pushing mechanism 30 are respectively disposed on the two sides of the base 10 to leave a space for placing the transmission member and also ensure the placing stability of the transmission member after falling off.
The first supporting plate 20 is a rectangular memorial archway steel piece so as to guarantee the structural strength of the first supporting plate, a clamping groove 20a is formed in the upper surface of the first supporting plate 20, the clamping groove 20a penetrates through the first plate surface and the second plate surface, the groove bottom of the clamping groove 20a is used for supporting an output shaft, the output shaft of a reduction gearbox of a rolling mill enters the groove bottom through an opening of the clamping groove 20a, and further the groove bottom of the clamping groove 20a is a cambered surface which is downwards sunken and arranged so as to be convenient to be attached to the output shaft, and further damage to the output shaft in the pushing process is reduced.
The pushing mechanism 30 is located at a position opposite to the first board surface and has a pushing end capable of extending out toward the first board surface, and the pushing end is in transmission connection with the output shaft so that the output shaft is pushed from the first board surface to the second board surface.
The pushing mechanism 30 may be a cylinder, and pushes the end of the output shaft through its piston rod, may be a hydraulic cylinder, and similarly pushes the end of the output shaft through its piston rod, or may be another pushing device, and may push the output shaft, and the pushing end may be a rod end of a piston rod, or may be another end used for a transmission assembly, and is not limited herein.
The invention provides a disassembly tool 100 for a reduction gearbox gear and a coupler of a rolling mill, which comprises a machine base 10, a first jacking plate 20 and a jacking mechanism 30 which are arranged on the machine base 10, by hoisting the whole reduction box of the rolling mill by a crane and enabling the output shaft of the reduction box to face the opening of the clamping groove 20a, and enters the groove bottom of the clamping groove 20a from the opening, further, the transmission component is supported against the first plate surface of the first supporting plate 20, the pushing end of the pushing mechanism 30 is in transmission connection with the output shaft and pushes the output shaft, so that the output shaft can move relative to the transmission member until the output shaft is separated from the transmission member, the transmission component is disassembled in a mode of pushing the output shaft through the pushing mechanism 30, the disassembling mode of the transmission component is simple, the disassembling work is stable, and compared with the disassembling mode of manually disassembling the transmission component at present, the disassembling mode has the advantages of safe disassembling and high disassembling efficiency.
Further, in order to ensure the stability of the pushing mechanism 30 in the pushing process, in one embodiment, the disassembly tooling 100 for the reduction gearbox gear and the coupling of the rolling mill further includes a second supporting plate 40, the second supporting plate 40 is arranged opposite to the first supporting plate 20 and has a third plate surface opposite to the first plate surface, and the pushing mechanism 30 is supported on the third plate surface.
Specifically, the second supporting plate 40 and the base 10 are integrated to ensure the pushing stability of the pushing mechanism 30 during the pushing process, and the pushing mechanism 30 is supported on the third plate surface, and the supporting end surface of the pushing mechanism is disposed toward the first plate surface.
Through the arrangement of the second supporting plate 40, the stability of the pushing mechanism 30 in the pushing process is ensured, further, the acting load of the reverse acting force borne by the pushing mechanism 30 in the pushing process is also improved, so that the pushing strength is ensured, and a transmission component which is connected with the output shaft more tightly can be detached.
Furthermore, the first supporting plate 20 and the second supporting plate 40 are both mounted on the machine base 10 through a column, so as to enhance the structural strength of the two plates and ensure the stability during the pushing process.
A fixing rod is connected between the first supporting plate 20 and the second supporting plate 40, so that the first supporting plate 20, the second supporting plate 40 and the fixing rod form an integrated structure, the structural strength of the two plates is further enhanced, and the stability in the supporting process is ensured.
The fixing rods may be one, two, three or more, and are specifically arranged according to actual conditions, and in this embodiment, two fixing rods are arranged above the first supporting plate 20 and the second supporting plate 40.
Specifically, the first supporting plate 20 and the second supporting plate 40 are both provided with mounting holes, and the mounting holes of the first supporting plate 20 are opposite to the mounting holes of the second supporting plate 40, so that the fixing rod is mounted between the first supporting plate 20 and the second supporting plate 40 through the mounting holes.
Wherein, the mounting hole may be a threaded hole, and the fixing rod is provided with a thread, the fixing rod is connected to the first supporting plate 20 and the second supporting plate 40 by a thread, so that the fixing rod is detachably fastened and mounted between the first supporting plate 20 and the second supporting plate 40, so that when the transmission member connected to the output shaft is too large, the fixing rod can be detached to make the transmission member passage crane drop on the base 10 from above.
Still further, the second supporting plate 40 further has a fourth plate surface, the fourth plate surface is opposite to the third plate surface, and reinforcing ribs are disposed between the fourth plate surface and the machine base 10 and between the second plate surface and the machine base 10.
Hereinafter, a detailed structure of the ejector mechanism 30 will be described, the ejector mechanism 30 including:
the first jack 31 is jacked on the third plate surface, and is in transmission connection with the output shaft so as to drive the output shaft to be jacked from the first plate surface to the second plate surface;
and the second jack 32 is arranged below the first jack 31, and is in transmission connection with the first jack 31 so as to drive the first jack 31 to ascend or descend along the vertical direction.
The first jack 31 may be a hand jack or a hydraulic jack, and similarly, the second jack 32 may be a hand jack or a hydraulic jack.
In order to make the pushing process more automatic, the first jack 31 is a hydraulic jack, and the second jack 32 is a hand jack.
In this embodiment, through the setting of second jack 32 to adjust the position of first jack 31 in vertical direction, make the piston rod of first jack 31 adjustable position, and then be convenient for the counterpoint of first jack 31 and output shaft, guarantee to push up the stability of in-process.
Meanwhile, the second jack 32 is arranged to ensure that the first jack 31 can be more stable in the adjustment process of adjusting the vertical direction.
In order to ensure that the output shaft part is not easy to damage in the pushing process, a piston rod of the first jack 31 is in transmission connection with a push rod 61, and the push rod 61 is used for being connected with the end part of the output shaft so as to transmit the output shaft to be pushed towards the second plate surface by the first plate surface.
Set up ejector pin 61 through the piston rod department at first jack 31 to push away the output shaft through ejector pin 61, effectively reduce the unexpected too violent impaired condition of output shaft that leads to of first jack 31, if the piston rod of first jack 31 is direct to contact with the output shaft, easily because the unexpected too violent and lead to the output shaft impaired of first jack 31, or the multiple push of piston rod leads to the tip wearing and tearing of output shaft, the normal work of reducing gear box has been influenced.
Further, in order to ensure the stability of the output shaft in the pushing process, a top plate 62 is arranged at the position of the clamping groove 20a of the first plate surface, the top plate 62 is used for supporting the transmission member, and a clamping hole is formed in the top plate 62 and used for allowing the output shaft to pass through and be clamped.
The hole wall of the clamping hole is an arc surface and is used for being in contact with an output shaft, the output shaft is clamped through the top plate 62 to be clamped and positioned, the output shaft is guaranteed not to be prone to shifting in the pushing process, pushing stability in the pushing process is guaranteed, meanwhile, the output shaft is effectively guaranteed not to be prone to being damaged, and if the output shaft shifts in the pushing process, the output shaft is prone to being deformed and the like.
Further, in order to guarantee the practicality and the applicable variety of roof 62, the card hole of roof 62 corresponds the output shaft is provided with multiple size, can be roof 62 that is provided with a plurality of apertures and differs for the not unidimensional output shaft of card is established, selects according to actual conditions, and simultaneously, ejector pin 61 also can be provided with multiple size, also corresponds to the output shaft is provided with multiple size.
The top plate 62 and the top plate 61 are hung on the fixing rod through a hoisting component 51, the hoisting component 51 is provided with two hoisting ends, and the two hoisting ends are respectively in transmission connection with the top plate 62 and the top plate 61 so as to respectively drive the top plate 62 and the top plate 61 to ascend or descend.
The lifting assembly 51 lifts the top rod 61 and the top plate 62 to adjust the positions of the two in the vertical direction, so that the two can be conveniently aligned with an output shaft in the pushing process, and the stability in the pushing process is ensured.
The lifting component 51 may be a chain block or a sling, and the end connected with the top plate 62 and the top rod 61 is the lifting end.
Furthermore, in order to adjust the position of the top plate 62 and the top rod 61 between the first supporting plate 20 and the pushing mechanism 30, the lifting assembly 51 is slidably disposed on the fixing rod along the length direction of the fixing rod.
In this embodiment, it is provided with the slide bar to slide on the dead lever, the slide bar is equipped with two, two slide bars pass through pulley sliding connection in the dead lever, two are located respectively to two ends of lifting by crane the slide bar.
In other embodiments, other sliding mechanisms may be adopted to realize the sliding of the hoisting assembly 51 on the fixing rod.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (10)
1. The utility model provides a frock (100) is dismantled to rolling mill reducing gear box gear and shaft coupling for rolling mill reducing gear box, its characterized in that includes:
a frame (10);
the first jacking plate (20) is arranged on the base (10) and provided with a first plate surface and a second plate surface which are arranged oppositely, a clamping groove (20a) is formed in the abutting surface, the clamping groove (20a) is used for an output shaft of a reduction gearbox of a rolling mill to pass through and penetrate through the first jacking plate (20), and a transmission member connected to the output shaft abuts against the first plate surface of the first jacking plate (20);
the pushing mechanism (30) is arranged on the machine base (10) and is opposite to the inner plate surface, and the pushing mechanism (30) is in transmission connection with the end part of the output shaft and is used for pushing the output shaft of the reduction box of the rolling mill from the first plate surface to the second plate surface.
2. The disassembly tool (100) for the gear and the coupler of the reduction gearbox of the rolling mill, according to claim 1, is characterized in that the disassembly tool (100) for the gear and the coupler of the reduction gearbox of the rolling mill further comprises a second jacking plate (40), the second jacking plate (40) is arranged opposite to the first jacking plate (20) and is provided with a third plate surface opposite to the first plate surface, and the pushing mechanism (30) is propped against the third plate surface.
3. The disassembly tool (100) for the gears and couplings of the reduction gearbox of a rolling mill according to claim 2, wherein the thrusting mechanism (30) comprises:
the first jack (31) is propped against the third plate surface and is in transmission connection with the output shaft so as to drive the output shaft to push the second plate surface from the first plate surface;
and the second jack (32), the second jack (32) is arranged below the first jack (31), and is in transmission connection with the first jack (31) so as to drive the first jack (31) to ascend or descend along the vertical direction.
4. The tool (100) for disassembling the gear and the coupler of the reduction gearbox of the rolling mill according to claim 2, wherein a piston rod of the first jack (31) is in transmission connection with an ejector rod (61), and the ejector rod (61) is used for being connected with the end part of the output shaft so as to transmit the output shaft to be ejected from the first plate surface to the second plate surface.
5. The tool (100) for disassembling the gear and the coupler of the reduction gearbox of the rolling mill according to claim 4, wherein a top plate (62) is arranged at the clamping groove (20a) of the first plate surface, the top plate (62) is used for supporting the transmission member, and a clamping hole is formed in the top plate (62) and used for allowing an output shaft to pass through and be clamped.
6. A mill reduction gearbox gear and coupling disassembly tool (100) as set forth in claim 5, characterized in that said top plate (62) has a plurality of snap-in holes corresponding to said output shaft.
7. The disassembly tool (100) for the gear and the coupler of the reduction gearbox of the rolling mill, as set forth in claim 5, is characterized in that a fixing rod is connected between the first jacking plate (20) and the second jacking plate (40), so that the first jacking plate (20), the second jacking plate (40) and the fixing rod form an integrated structure.
8. The disassembly tool (100) for the gears and couplings of the reduction gearbox of the rolling mill according to claim 7, wherein the fixing rod is provided with a lifting assembly (51), the lifting assembly (51) is provided with two lifting ends, and the two lifting ends are respectively in transmission connection with the ejector rod (61) and the top plate (62) so as to respectively drive the ejector rod (61) and the top plate (62) to ascend or descend.
9. The steel rolling mill reduction gearbox gear and coupling disassembly tool (100) according to claim 8, wherein the lifting assembly (51) is slidably and slidably arranged on the fixing rod along the length direction of the fixing rod.
10. The disassembly tool (100) for the gear and the coupler of the reduction gearbox of the rolling mill as recited in claim 7, wherein the second supporting plate (40) further comprises a fourth plate surface, the fourth plate surface is opposite to the third plate surface, and reinforcing ribs are respectively arranged between the fourth plate surface and the stand (10) and between the second plate surface and the stand (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010991191.8A CN112372570A (en) | 2020-09-20 | 2020-09-20 | Steel rolling mill reduction box gear and coupling disassembly tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010991191.8A CN112372570A (en) | 2020-09-20 | 2020-09-20 | Steel rolling mill reduction box gear and coupling disassembly tool |
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| Publication Number | Publication Date |
|---|---|
| CN112372570A true CN112372570A (en) | 2021-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010991191.8A Pending CN112372570A (en) | 2020-09-20 | 2020-09-20 | Steel rolling mill reduction box gear and coupling disassembly tool |
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| CN (1) | CN112372570A (en) |
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| CN111546038A (en) * | 2020-04-17 | 2020-08-18 | 河北华丰能源科技发展有限公司 | Large-scale shaft coupling dismounting device |
| CN111604857A (en) * | 2020-06-18 | 2020-09-01 | 五冶集团上海有限公司 | Speed reducer gear shaft bearing dismounting method and device |
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Application publication date: 20210219 |