CN115156299A - Device and method for quickly replacing roller connecting shaft - Google Patents
Device and method for quickly replacing roller connecting shaft Download PDFInfo
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- CN115156299A CN115156299A CN202210759512.0A CN202210759512A CN115156299A CN 115156299 A CN115156299 A CN 115156299A CN 202210759512 A CN202210759512 A CN 202210759512A CN 115156299 A CN115156299 A CN 115156299A
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- connecting shaft
- bolt
- roller connecting
- roll
- roller
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
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- Rolls And Other Rotary Bodies (AREA)
Abstract
The invention discloses a device and a method for quickly replacing a roller connecting shaft, which comprises a bracket, an upper roller connecting shaft and a lower roller connecting shaft, wherein the upper roller connecting shaft and the lower roller connecting shaft are arranged on the bracket through an adjusting mechanism; the adjusting mechanism comprises an upper roller connecting shaft mounting assembly and a lower roller connecting shaft mounting assembly. The invention realizes the independent replacement of the upper roller connecting shaft and the lower roller connecting shaft by changing the integrally installed pressing plate structure in the prior art into the upper pressing plate and the lower pressing plate which are independently arranged, and the upper pressing plate and the lower pressing plate are respectively provided with the upper roller connecting shaft installation component and the lower roller connecting shaft installation component. According to the invention, the adjusting mechanism for assisting in mounting the roller connecting shaft is arranged, and comprises the upper roller connecting shaft mounting assembly and the lower roller connecting shaft mounting assembly which are hinged, so that the memory function can be realized after the roller connecting shaft is mounted for the first time, and when a new roller connecting shaft needs to be replaced, the roller connecting shaft can be directly mounted through the adjusting mechanism without excessive adjustment.
Description
Technical Field
The invention relates to the field of mechanical transmission devices, in particular to a device and a method for quickly replacing a roller connecting shaft.
Background
The roll connecting shaft is used as an important transmission component of equipment such as a rolling mill and the like, and needs to be replaced when the roll connecting shaft is seriously worn or scrapped. In current structure, a plurality of roller spigots are installed on the clamp plate of a whole setting, and this kind of mounting structure also needs to dismantle other roller spigots on the clamp plate in the lump when the roller spigots need to be changed, otherwise can't accomplish the change. In addition, in the process of disassembling the existing roll connecting shaft, an additional crane is required to be arranged to pull the roll connecting shaft which does not need to be replaced.
Therefore, there is a need for an improved structure that overcomes the above-mentioned deficiencies.
Disclosure of Invention
The invention aims to provide a device and a method for quickly replacing a roller connecting shaft.
The technical purpose of the invention is realized by the following technical scheme:
a device for rapidly replacing a roller connecting shaft comprises a bracket, an upper roller connecting shaft and a lower roller connecting shaft, wherein the upper roller connecting shaft and the lower roller connecting shaft are arranged on the bracket through an adjusting mechanism;
the bracket comprises a base plate, a group of vertical plates are arranged on the base plate, and the space between the vertical plates is provided with an upper cavity for mounting an upper roller connecting shaft and a lower cavity for mounting a lower roller connecting shaft;
the adjusting mechanism comprises an upper roller connecting shaft mounting assembly and a lower roller connecting shaft mounting assembly;
the upper roll connecting shaft mounting assembly is mounted on the side wall of the upper cavity through an upper pressing plate and comprises a support rod, a transmission block, an adjusting rod and an upper shaft sleeve which are hinged, the transmission block is arranged at the top of the support rod, two ends of the transmission block are respectively connected with the support rod and the adjusting rod, the adjusting rod is connected with the upper shaft sleeve, and two ends of the upper roll connecting shaft are respectively arranged in the upper cavity through matching connection with an upper shaft sleeve;
the lower roll connecting shaft mounting assembly is mounted on the side wall of the lower cavity through a lower pressing plate and comprises a screw, a locking spring, a locking bolt and a lower shaft sleeve; the top of the screw rod is hinged with the bottom of the support rod, the lower shaft sleeve is sleeved on the screw rod, the screw rod below the lower shaft sleeve is provided with a locking spring, and the screw rod above the lower shaft sleeve is provided with a locking bolt.
The number of the adjusting mechanisms is two, the adjusting mechanisms are symmetrically arranged on two sides of the bracket, and two ends of the upper roll connecting shaft and two ends of the lower roll connecting shaft are respectively connected with the upper shaft sleeve or the lower shaft sleeve on the side.
The upper pressure plate is provided with an upper limit adjusting groove, the upper shaft sleeve is arranged in the upper limit adjusting groove and can move up and down along the upper limit adjusting groove under the transmission action of the upper roller shaft mounting assembly.
The lower pressure plate is provided with a lower limiting adjusting groove and can move up and down along the lower limiting adjusting groove under the transmission action of the lower roller shaft mounting assembly.
The upper shaft sleeve is provided with a hinged point which is connected with the adjusting rod.
The lower shaft sleeve comprises a shaft sleeve main body, a connecting end is arranged on the side of the shaft sleeve main body, a through hole is formed in the connecting end, and the connecting end is sleeved on the screw rod through the through hole.
The bottom of the screw rod is provided with a limiting bolt, the bottom of a locking spring sleeved on the screw rod is in contact with the limiting bolt, the top of the locking spring is in contact with the lower surface of the lower shaft sleeve, and the locking bolt is arranged above the lower shaft sleeve and used for locking the position of the lower shaft sleeve.
A group of through holes are formed in the upper pressing plate and the lower pressing plate, bolt holes matched with the through holes are formed in a vertical plate of the bracket, the upper pressing plate is installed on the vertical plate through a first bolt and a second bolt, and the lower pressing plate is installed on the vertical plate through a third bolt and a fourth bolt.
A method for quick change of a roll coupling comprising the steps of:
1) Moving a lower roll connecting shaft to be installed to an installation position in the lower cavity through a crane;
2) The fourth bolt is disassembled, the third bolt is unscrewed, and the lower roll connecting shaft mounting assembly is driven to be close to the lower roll connecting shaft by rotating the lower pressing plate;
3) The position of the lower shaft sleeve is adjusted through a locking spring to be aligned to the end part of the lower roller connecting shaft, then the lower pressing plate is continuously rotated to drive the lower roller connecting shaft mounting assembly until the end part of the lower roller connecting shaft enters the lower roller connecting shaft, finally the lower roller connecting shaft is locked through a locking bolt, and a third bolt and a fourth bolt are screwed tightly to complete the quick mounting of the lower roller connecting shaft;
4) Moving an upper roll connecting shaft to be installed to an installation position in the upper cavity through a crane;
5) The first bolt is disassembled, the second bolt is unscrewed, and the upper roll connecting shaft mounting assembly is driven to be close to the upper roll connecting shaft by rotating the upper pressing plate;
6) The transmission block and the adjusting rod adjust the position of the upper shaft sleeve to align the upper shaft sleeve to the end part of the upper roller connecting shaft (3), then the upper pressing plate is continuously rotated to drive the upper roller connecting shaft mounting assembly until the end part of the upper roller connecting shaft enters the upper shaft sleeve, finally the transmission block, the adjusting rod and the upper shaft sleeve are locked, the first bolt and the second bolt are screwed, and the upper roller connecting shaft is rapidly mounted;
7) When the lower roll connecting shaft is excessively worn and needs to be replaced, the lower roll connecting shaft is pulled by a crane, then the fourth bolt is disassembled, the third bolt is unscrewed, and the lower roll connecting shaft mounting assembly is driven to be separated from the lower roll connecting shaft by reversely rotating the lower pressure plate; the new lower roll connecting shaft can be installed according to the steps 1) -3), and the lower roll connecting shaft can be rapidly replaced;
8) When the upper roll connecting shaft is excessively worn and needs to be replaced, the upper roll connecting shaft is pulled by a crane, then the first bolt is disassembled, the second bolt is unscrewed, and the upper roll connecting shaft mounting assembly is driven to be separated from the upper roll connecting shaft by reversely rotating the upper pressure plate; and (4) installing the new upper roll connecting shaft according to the steps 4) to 6), and realizing the quick replacement of the upper roll connecting shaft.
In conclusion, the invention has the following beneficial effects:
1. the invention realizes the independent replacement of the upper roller connecting shaft and the lower roller connecting shaft by changing the integrally installed pressing plate structure in the prior art into the upper pressing plate and the lower pressing plate which are independently arranged, and the upper pressing plate and the lower pressing plate are respectively provided with the upper roller connecting shaft installation component and the lower roller connecting shaft installation component.
2. According to the invention, the adjusting mechanism for assisting in mounting the roller connecting shaft is arranged, and comprises the upper roller connecting shaft mounting assembly and the lower roller connecting shaft mounting assembly which are hinged, so that the memory function can be realized after the roller connecting shaft is mounted for the first time, and when a new roller connecting shaft needs to be replaced, the roller connecting shaft can be directly mounted through the adjusting mechanism without excessive adjustment.
Drawings
FIG. 1 is a front view of the apparatus for rapid change of a roll-in spindle according to the present invention.
Fig. 2 is a cross-sectional view of the apparatus for rapid change of a roll spindle according to the present invention.
Fig. 3 is a top view of the apparatus for rapid change of a roll-in spindle according to the present invention.
Fig. 4 is a schematic view of an adjustment mechanism according to the present invention.
Detailed Description
In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easy to understand, the invention is further described with reference to the figures and the specific embodiments.
As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the device for rapidly replacing a roller connecting shaft provided by the invention comprises a bracket (1), and an upper roller connecting shaft (3) and a lower roller connecting shaft (4) which are arranged on the bracket (1) through an adjusting mechanism (2);
the bracket (1) comprises a base plate (11), a group of vertical plates (12) are arranged on the base plate (11), and the space between the vertical plates (12) is provided with an upper cavity (14) for mounting an upper roller connecting shaft (3) and a lower cavity (15) for mounting a lower roller connecting shaft (4);
the adjusting mechanism (2) comprises an upper roller connecting shaft mounting component (22) and a lower roller connecting shaft mounting component (23);
the upper roll connecting shaft mounting assembly (22) is mounted on the side wall of the upper cavity (14) through an upper pressing plate (5), the upper roll connecting shaft mounting assembly (22) comprises a supporting rod (221), a transmission block (222), an adjusting rod (223) and an upper shaft sleeve (224), the transmission block (222) is arranged at the top of the supporting rod (221), two ends of the transmission block (222) are respectively connected with the supporting rod (221) and the adjusting rod (223), the adjusting rod (223) is connected with the upper shaft sleeve (224), and two ends of the upper roll connecting shaft (3) are respectively connected with the upper shaft sleeve (224) in a matched mode and arranged in the upper cavity (14);
the lower roll connecting shaft mounting assembly (23) is mounted on the side wall of the lower cavity (15) through the lower pressing plate (6), and the lower roll connecting shaft mounting assembly (23) comprises a screw (231), a locking spring (232), a locking bolt (233) and a lower shaft sleeve (234); the top of the screw rod (231) is hinged with the bottom of the support rod (221), the lower shaft sleeve (234) is sleeved on the screw rod (231), a locking spring (232) is arranged on the screw rod (231) below the lower shaft sleeve (234), and a locking bolt (233) is arranged on the screw rod (231) above the lower shaft sleeve (234).
The number of the adjusting mechanisms (2) is two, the adjusting mechanisms are symmetrically arranged on two sides of the bracket (1), and two ends of the upper roll connecting shaft (3) and two ends of the lower roll connecting shaft (4) are respectively connected with the upper shaft sleeve (224) or the lower shaft sleeve (234) on the side.
An upper limiting adjusting groove (51) is formed in the upper pressing plate (5), an upper shaft sleeve (224) is arranged in the upper limiting adjusting groove (51), and can move up and down along the upper limiting adjusting groove (51) under the transmission action of the upper roller connecting shaft mounting assembly (22).
Lower limiting adjusting grooves (61) are formed in the lower pressing plate (6), and the lower limiting adjusting grooves (61) can move up and down under the transmission effect of the lower roller connecting shaft mounting assembly (23).
The upper shaft sleeve (224) is provided with a hinged point, and the hinged point is connected with the adjusting rod (223).
The lower shaft sleeve (234) comprises a shaft sleeve main body, a connecting end (235) is arranged on the side of the shaft sleeve main body, a through hole is formed in the connecting end (235), and the screw rod (231) is sleeved with the through hole.
The bottom of screw rod (231) is equipped with spacing bolt (236), and the bottom and the spacing bolt (236) contact of locking spring (232) that the cover was established on screw rod (231), and locking spring (232) top and the lower surface contact of lower axle sleeve (234), locking bolt (233) set up in the top of lower axle sleeve (234), and it is used for locking the position of lower axle sleeve (234).
A group of through holes are formed in the upper pressing plate (5) and the lower pressing plate (6), bolt holes matched with the through holes are formed in a vertical plate (12) of the bracket (1), the upper pressing plate (5) is installed on the vertical plate (12) through a first bolt (7) and a second bolt (8), and the lower pressing plate (6) is installed on the vertical plate (12) through a third bolt (9) and a fourth bolt (10).
A method for rapidly replacing a roll coupling includes a rapid roll coupling installation step and a rapid roll coupling removal step.
The quick installation steps of the roller connecting shaft are as follows:
1) Moving a lower roll connecting shaft (4) to be installed to an installation position in a lower cavity (15) through a crane;
2) The fourth bolt (10) is disassembled, the third bolt (9) is unscrewed, and the lower roll connecting shaft mounting component (23) is driven to be close to the lower roll connecting shaft (4) by rotating the lower pressing plate (6);
3) The position of a lower shaft sleeve (234) is adjusted through a locking spring (232) to be aligned to the end part of a lower roller connecting shaft (4), then a lower pressing plate (6) is continuously rotated to drive a lower roller connecting shaft mounting assembly (23) until the end part of the lower roller connecting shaft (4) enters the lower roller connecting shaft (4), finally the lower roller connecting shaft is locked through a locking bolt (233), and a third bolt (9) and a fourth bolt (10) are screwed, so that the lower roller connecting shaft (4) is rapidly mounted;
4) Moving the upper roll connecting shaft (3) to be installed to an installation position in the upper cavity (14) through a crane;
5) The first bolt (7) is disassembled, the second bolt (8) is unscrewed, and the upper roll connecting shaft mounting assembly (22) is driven to be close to the upper roll connecting shaft (3) by rotating the upper pressing plate (5);
6) The position of upper shaft sleeve (224) is adjusted through transmission block (222) and adjusting rod (223), the end portion of upper shaft connecting shaft (3) is aligned to the transmission block, then upper pressing plate (5) continues to rotate to drive upper shaft connecting shaft mounting assembly (22) until the end portion of upper shaft connecting shaft (3) enters upper shaft sleeve (224), finally transmission block (222) is locked, adjusting rod (223) and upper shaft sleeve (224) are adjusted, first bolt (7) and second bolt (8) are screwed, and quick mounting of upper shaft connecting shaft (3) is completed.
The quick installation steps of the roller connecting shaft are as follows:
7) When the lower roll connecting shaft (4) is excessively worn and needs to be replaced, the lower roll connecting shaft (4) is pulled by a crane, then the fourth bolt (10) is disassembled, the third bolt (9) is unscrewed, and the lower roll connecting shaft mounting assembly (23) is driven to be separated from the lower roll connecting shaft (4) through the reverse rotation of the lower pressing plate (6);
after the disassembly is finished, the new lower roller connecting shaft (4) can be installed according to the steps 1) to 3), so that the lower roller connecting shaft (4) can be quickly replaced;
8) When the upper roll connecting shaft (3) is excessively worn and needs to be replaced, the upper roll connecting shaft (4) is pulled by a crane, then the first bolt (7) is disassembled, the second bolt (8) is unscrewed, and the upper roll connecting shaft mounting assembly (22) is driven to be separated from the upper roll connecting shaft (4) through the reversely rotating upper pressure plate (5);
after the disassembly is finished, the new upper roller connecting shaft (4) can be installed according to the steps 4) -6), and the quick replacement of the upper roller connecting shaft (4) is realized.
In this document, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the purpose of clarity and convenience of description of the technical solutions, and thus, should not be construed as limiting the present invention.
As used herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, including not only those elements listed, but also other elements not expressly listed.
The foregoing shows and describes the general principles, principal features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A device for rapidly replacing a roller connecting shaft is characterized by comprising a bracket (1), an upper roller connecting shaft (3) and a lower roller connecting shaft (4) which are arranged on the bracket (1) through an adjusting mechanism (2);
the bracket (1) comprises a base plate (11), a group of vertical plates (12) are arranged on the base plate (11), and an upper cavity (14) for mounting the upper roller connecting shaft (3) and a lower cavity (15) for mounting the lower roller connecting shaft (4) are arranged in the space between the vertical plates (12);
the adjusting mechanism (2) comprises an upper roller connecting shaft mounting component (22) and a lower roller connecting shaft mounting component (23);
the upper roll connecting shaft mounting assembly (22) is mounted on the side wall of the upper cavity (14) through an upper pressing plate (5), the upper roll connecting shaft mounting assembly (22) comprises a supporting rod (221), a transmission block (222), an adjusting rod (223) and an upper shaft sleeve (224), the transmission block (222) is arranged at the top of the supporting rod (221), two ends of the transmission block (222) are respectively connected with the supporting rod (221) and the adjusting rod (223), the adjusting rod (223) is connected with the upper shaft sleeve (224), and two ends of the upper roll connecting shaft (3) are respectively connected with the upper shaft sleeve (224) in a matched mode and arranged in the upper cavity (14);
the lower roll connecting shaft mounting assembly (23) is mounted on the side wall of the lower cavity (15) through a lower pressing plate (6), and the lower roll connecting shaft mounting assembly (23) comprises a screw rod (231), a locking spring (232), a locking bolt (233) and a lower shaft sleeve (234); the top of the screw rod (231) is hinged with the bottom of the support rod (221), the lower shaft sleeve (234) is sleeved on the screw rod (231), a locking spring (232) is arranged on the screw rod (231) below the lower shaft sleeve (234), and a locking bolt (233) is arranged on the screw rod (231) above the lower shaft sleeve (234).
2. The device for rapidly replacing a roller connecting shaft according to claim 1, characterized in that the number of the adjusting mechanisms (2) is two, the adjusting mechanisms are symmetrically arranged at two sides of the bracket (1), and two ends of the upper roller connecting shaft (3) and two ends of the lower roller connecting shaft (4) are respectively connected with an upper shaft sleeve (224) or a lower shaft sleeve (234) at the side part.
3. The device for rapidly replacing the roller spindle according to claim 1, wherein an upper limit adjusting groove (51) is formed in the upper pressure plate (5), and an upper shaft sleeve (224) is arranged in the upper limit adjusting groove (51) and can move up and down along the upper limit adjusting groove (51) under the transmission action of the upper roller spindle mounting assembly (22).
4. The device for rapidly replacing the roller spindle according to claim 1, wherein the lower pressure plate (6) is provided with a lower limit adjusting groove (61) and can move up and down along the lower limit adjusting groove (61) under the transmission action of the lower roller spindle mounting assembly (23).
5. Device for the rapid exchange of roller spindles according to claim 1, characterized in that the upper bushing (224) is provided with a hinge point and is connected with the adjusting lever (223) by means of the hinge point.
6. The device for rapidly replacing a roll shaft according to claim 1, wherein the lower shaft sleeve (234) comprises a shaft sleeve main body, a connecting end (235) is arranged on the side of the shaft sleeve main body, the connecting end (235) is provided with a through hole, and the screw rod (231) is sleeved with the connecting end through the through hole.
7. The device for rapidly replacing a roll spindle according to claim 1, characterized in that a limit bolt (236) is arranged at the bottom end of the screw rod (231), the bottom of a locking spring (232) sleeved on the screw rod (231) is in contact with the limit bolt (236), the top of the locking spring (232) is in contact with the lower surface of the lower spindle sleeve (234), and a locking bolt (233) is arranged above the lower spindle sleeve (234) and used for locking the position of the lower spindle sleeve (234).
8. The device for rapidly replacing the roller spindle according to claim 1, wherein a set of through holes are formed in the upper pressing plate (5) and the lower pressing plate (6), bolt holes matched with the through holes are formed in a vertical plate (12) of the bracket (1), the upper pressing plate (5) is mounted on the vertical plate (12) through a first bolt (7) and a second bolt (8), and the lower pressing plate (6) is mounted on the vertical plate (12) through a third bolt (9) and a fourth bolt (10).
9. A method for rapid change of a roll coupling comprising the steps of:
1) Moving a lower roll connecting shaft (4) to be installed to an installation position in a lower cavity (15) through a crane;
2) The fourth bolt (10) is disassembled, the third bolt (9) is loosened, and the lower roll connecting shaft mounting assembly (23) is driven to be close to the lower roll connecting shaft (4) by rotating the lower pressing plate (6);
3) The position of a lower shaft sleeve (234) is adjusted through a locking spring (232) to be aligned to the end part of a lower roller connecting shaft (4), then a lower pressing plate (6) is continuously rotated to drive a lower roller connecting shaft mounting assembly (23) until the end part of the lower roller connecting shaft (4) enters the lower roller connecting shaft (4), finally the lower roller connecting shaft is locked through a locking bolt (233), and a third bolt (9) and a fourth bolt (10) are screwed, so that the lower roller connecting shaft (4) is rapidly mounted;
4) Moving an upper roll connecting shaft (3) to be installed to an installation position in an upper cavity (14) through a crane;
5) The first bolt (7) is disassembled, the second bolt (8) is unscrewed, and the upper roll connecting shaft mounting assembly (22) is driven to be close to the upper roll connecting shaft (3) by rotating the upper pressing plate (5);
6) The transmission block (222) and the adjusting rod (223) adjust the position of the upper shaft sleeve (224) to be aligned to the end part of the upper roller connecting shaft (3), then the upper pressing plate (5) continues to rotate to drive the upper roller connecting shaft mounting assembly (22) until the end part of the upper roller connecting shaft (3) enters the upper shaft sleeve (224), finally the transmission block (222), the adjusting rod (223) and the upper shaft sleeve (224) are locked, the first bolt (7) and the second bolt (8) are screwed, and the upper roller connecting shaft (3) is rapidly mounted;
7) When the lower roll connecting shaft (4) is excessively worn and needs to be replaced, the lower roll connecting shaft (4) is pulled by a crane, then the fourth bolt (10) is disassembled, the third bolt (9) is unscrewed, and the lower roll connecting shaft mounting assembly (23) is driven to be separated from the lower roll connecting shaft (4) through the reverse rotation of the lower pressing plate (6); the new lower roll connecting shaft (4) can be installed according to the steps 1) to 3), so that the lower roll connecting shaft (4) can be quickly replaced;
8) When the upper roll connecting shaft (3) is excessively worn and needs to be replaced, the upper roll connecting shaft (4) is pulled by a crane, then the first bolt (7) is disassembled, the second bolt (8) is unscrewed, and the upper roll connecting shaft mounting assembly (22) is driven to be separated from the upper roll connecting shaft (4) through the reversely rotating upper pressure plate (5); and the new upper roll connecting shaft (4) can be installed according to the steps 4) to 6), so that the upper roll connecting shaft (4) can be quickly replaced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210759512.0A CN115156299A (en) | 2022-06-30 | 2022-06-30 | Device and method for quickly replacing roller connecting shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210759512.0A CN115156299A (en) | 2022-06-30 | 2022-06-30 | Device and method for quickly replacing roller connecting shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115156299A true CN115156299A (en) | 2022-10-11 |
Family
ID=83489263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210759512.0A Pending CN115156299A (en) | 2022-06-30 | 2022-06-30 | Device and method for quickly replacing roller connecting shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115156299A (en) |
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2022
- 2022-06-30 CN CN202210759512.0A patent/CN115156299A/en active Pending
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