CN115533774A - Mounting tool for spiral retainer ring for shaft and using method - Google Patents
Mounting tool for spiral retainer ring for shaft and using method Download PDFInfo
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- CN115533774A CN115533774A CN202211169973.9A CN202211169973A CN115533774A CN 115533774 A CN115533774 A CN 115533774A CN 202211169973 A CN202211169973 A CN 202211169973A CN 115533774 A CN115533774 A CN 115533774A
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- jaw
- retainer ring
- tool body
- spiral retainer
- tool
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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
- B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Abstract
The invention belongs to the technical field of mechanical assembly, and discloses a tool for mounting a spiral retainer ring for a shaft and a using method thereof, wherein the mounting tool comprises a tool body, a fixed jaw, a movable jaw and a chute, the tool body is of an arc structure smaller than a semicircle, the front end of the tool body is provided with a step with the height consistent with the total thickness of the spiral retainer ring, the front end of the tool body is also provided with a square groove, and a rectangular groove parallel to the front end surface of the tool body is arranged beside the square groove; the fixed jaw is arranged on the square groove of the tool body, and the jaw part of the fixed jaw extends out of the lower part of the tool body from the square groove; the movable jaw is slidably mounted in the rectangular groove of the tool body, the jaw part of the movable jaw extends out of the lower part of the tool body from the rectangular groove, and the sliding groove is mounted above the tool body and used for limiting the jaw of the movable jaw to slide in the rectangular groove. The invention enables the deformation of the spiral retainer ring to be minimum so as to prevent the spiral retainer ring from being separated, and compared with the existing spiral retainer ring mounting tool for the shaft, the invention can prevent the surface of the part from being scratched.
Description
Technical Field
The invention belongs to the technical field of mechanical assembly, and relates to a tool for mounting a spiral retainer ring for a shaft and a using method thereof.
Background
When the spiral retainer ring is assembled on the shaft part at present, the commonly adopted method is to manually pull the end head of the spiral retainer ring to enlarge the inner diameter of the spiral retainer ring and then install the spiral retainer ring in the spiral retainer ring installation groove of the shaft. Such a way can cause spiral retaining ring plastic deformation, leads to spiral retaining ring to take place the risk of droing at the during operation.
Also there is the way of use tool, and the workman uses current spiral retaining ring mounting tool for the axle to overlap the epaxial back with spiral retaining ring, and the retaining ring internal diameter lock hoop is epaxial, then the reuse sleeve with spiral retaining ring along the axle push epaxial spiral retaining ring mounting groove in accomplish the installation. Such an assembly method has problems in that: the shaft part with high surface quality requirement is provided with the spiral retainer ring, the surface of the part is easily scratched, scraps are generated, and if the shaft part is not thoroughly cleaned, scraps can be left in the assembly to form redundancy.
Disclosure of Invention
In order to solve the problems, the invention provides a tool for installing a spiral retainer ring for a shaft and a using method thereof.
The technical scheme of the invention is as follows:
a tool for mounting a spiral retainer ring for a shaft comprises a tool body, a fixed jaw, a movable jaw and a sliding groove, wherein the tool body is of an arc structure smaller than a semicircle, the front end of the tool body is provided with a step with the height consistent with the total thickness of the spiral retainer ring, the front end of the tool body is also provided with a square groove, and a rectangular groove parallel to the front end surface of the tool body is arranged beside the square groove; the fixed jaw is arranged on the square groove of the tool body, and the jaw part of the fixed jaw extends out of the lower part of the tool body from the square groove; the movable jaw is slidably mounted in the rectangular groove of the tool body, the jaw part of the movable jaw extends out of the lower part of the tool body from the rectangular groove, and the sliding groove is mounted above the tool body and used for limiting the jaw of the movable jaw to slide in the rectangular groove.
Furthermore, the width of the jaw part of the fixed jaw is consistent with the single thickness of the spiral retainer ring.
Furthermore, the lower surface of the fixed jaw is fixedly connected with the upper surface of the tool body, the jaw part of the fixed jaw is arranged at the front end of the fixed jaw, the jaw part of the fixed jaw extends out of the lower surface of the tool body downwards along the square groove, and the bottom of the jaw part protrudes rightwards to form a contact surface with the spiral retaining ring.
Furthermore, the width of the jaw part of the movable jaw is consistent with the single thickness of the spiral retainer ring.
Furthermore, the sliding chute is fixedly arranged on the upper surface of the tool body, a gap is formed between the sliding chute and the tool body, a convex edge is arranged on the rear side of the movable jaw, and the convex edge of the movable jaw is inserted into the gap; the bottom of the movable jaw is a jaw part of the movable jaw, the jaw part of the movable jaw extends downwards out of the lower surface of the tool body along the rectangular groove, and the bottom of the jaw part protrudes leftwards to form a contact surface with the spiral retaining ring.
Furthermore, handles are arranged above the fixed jaw and the movable jaw.
Furthermore, the jaw parts of the fixed jaw and the movable jaw are made of alloy steel and are subjected to heat treatment to reach the hardness HRC 45-50.
A use method of a tool for installing a spiral retainer ring for a shaft comprises the steps of placing the spiral retainer ring on the step surface of a tool body, hooking one end of a spiral retainer ring by using the jaw part of a fixed jaw, sliding a movable jaw to the position closest to the fixed jaw, and hooking the other end of the spiral retainer ring by using the jaw part of the movable jaw; then the movable jaw is slid towards the direction far away from the fixed jaw so as to open the spiral retainer ring, the shaft part is placed in the spiral retainer ring, the spiral retainer ring installation groove is aligned with the spiral retainer ring, finally the movable jaw is slid to the position closest to the fixed jaw again to tighten the two ends of the spiral retainer ring, and finally the installation tool is disengaged from the shaft part.
The invention has the beneficial effects that:
1. the invention changes the original outward pulling force on the end of the spiral retainer ring into the axial driving force on the material of the spiral retainer ring, so that the local deformation of the spiral retainer ring is changed into the overall deformation, the deformation of the spiral retainer ring is changed to the minimum, and the separation of the spiral retainer ring during the operation is prevented.
2. Compared with the existing spiral retainer ring mounting tool for the shaft, the spiral retainer ring can be directly placed in the spiral retainer ring mounting groove, and the surfaces of parts are prevented from being scratched and scraps are prevented from being scratched.
3. The spiral retainer ring is convenient to use, and the length of the integral cambered surface is smaller than a semicircle, so that a tool can be conveniently separated from a part after the spiral retainer ring is installed in place.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present patent, the drawings which are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only show some examples of the present patent and therefore should not be considered as limiting the scope, and that other relevant drawings can be obtained by those skilled in the art without inventive efforts.
FIG. 1 is a schematic view of a tool for mounting a spiral retainer ring for a shaft according to the present invention;
FIG. 2 is a tool body schematic of the tool of the present invention;
FIG. 3 is a schematic view of a fixed jaw of the tool of the present invention;
FIG. 4 is a schematic view of a movable jaw of the tool of the present invention;
fig. 5 is a schematic view of the use of the tool of the present invention.
The tool comprises a tool body 1, a fixed jaw 2, a movable jaw 3, a sliding chute 4, a sliding chute 5, a screw for installing the sliding chute and a fixed jaw 6.
Detailed Description
The present section is an embodiment of the present invention for explaining and explaining the technical solution of the present invention. The embodiments of the invention and the features of the embodiments can be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the directions or positional relationships indicated in the drawings to facilitate the description of the invention and to simplify the description, but are not intended to indicate or imply that the device or case being referred to must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner and therefore are not to be construed as limiting the invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include more than one of the features. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected" and "connected" should be interpreted broadly, and may be, for example, a fixed connection, a detachable connection or an integrated connection; the connection can be mechanical connection or point connection; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
A tool for mounting a spiral retainer ring for a shaft comprises a tool body 1, a fixed jaw 2, a movable jaw 3 and a sliding groove 4, wherein the tool body 1 is of an arc structure smaller than a semicircle, the front end of the tool body 1 is provided with a step with the height consistent with the total thickness of the spiral retainer ring, the front end of the tool body 1 is also provided with a square groove, and a rectangular groove parallel to the front end surface of the tool body 1 is arranged beside the square groove; the fixed jaw 2 is arranged on a square groove of the tool body 1, and the jaw part of the fixed jaw 2 extends out of the lower part of the tool body 1 from the square groove; the movable jaw 3 is slidably mounted in the rectangular groove of the tool body 1, the jaw part of the movable jaw 3 extends out of the lower part of the tool body 1 from the rectangular groove, and the sliding groove 4 is mounted above the tool body 1 to limit the jaw of the movable jaw 3 to slide in the rectangular groove.
The width of the jaw part of the fixed jaw 2 is consistent with the single thickness of the spiral retainer ring.
The lower surface of the fixed jaw 2 is fixedly connected with the upper surface of the tool body 1, the jaw part of the fixed jaw 2 is arranged at the front end of the fixed jaw 2, the jaw part of the fixed jaw 2 extends out of the lower surface of the tool body 1 downwards along a square groove, and the bottom of the jaw part protrudes rightwards to form a contact surface with a spiral retaining ring.
The width of the jaw part of the movable jaw 3 is consistent with the single thickness of the spiral retainer ring.
The sliding chute 4 is fixedly arranged on the upper surface of the tool body 1, a gap is formed between the sliding chute 4 and the tool body 1, a convex edge is arranged on the rear side of the movable jaw 3, and the convex edge of the movable jaw 3 is inserted into the gap; the bottom of the movable jaw 3 is the jaw part of the movable jaw 3, the jaw part of the movable jaw 3 extends out of the lower surface of the tool body 1 downwards along the rectangular groove, and the bottom of the jaw part protrudes leftwards to form a contact surface with the spiral retaining ring.
Handles are arranged above the fixed jaw 2 and the movable jaw 3.
The jaw parts of the fixed jaw 2 and the movable jaw 3 are made of alloy steel and are subjected to heat treatment to reach the hardness HRC 45-50.
A use method of a tool for installing a spiral retainer ring for a shaft comprises the steps of placing the spiral retainer ring on the step surface of a tool body, hooking one end of a spiral retainer ring by using the jaw part of a fixed jaw, sliding a movable jaw to the position closest to the fixed jaw, and hooking the other end of the spiral retainer ring by using the jaw part of the movable jaw; then sliding the movable jaw to a direction far away from the fixed jaw to open the spiral retainer ring, placing the shaft part into the spiral retainer ring and aligning the spiral retainer ring installation groove with the spiral retainer ring, finally sliding the movable jaw to a position closest to the fixed jaw to pull two ends of the spiral retainer ring tightly, and finally disconnecting the installation tool from the shaft part.
Another embodiment of the present invention is described below with reference to the drawings.
Fig. 1 is a schematic view of a tool for mounting a spiral retainer ring for a shaft according to the present invention, and fig. 2 is a schematic view of a tool body of the tool according to the present invention; FIG. 3 is a schematic view of a fixed jaw of the tool of the present invention; FIG. 4 is a schematic view of a movable jaw of the tool of the present invention; fig. 5 is a schematic view of the use of the tool of the present invention.
The invention provides a tool for mounting a spiral retainer ring for a shaft, which comprises a tool body 1, a fixed jaw 2, a movable jaw 3 and a sliding groove 4. The fixed jaw 2 is fixed on the tool body 1 through a screw, a gap is reserved between the jaw part and the end step of the tool body, the spiral retainer ring is inserted into the gap to prevent the spiral retainer ring from falling off when the spiral retainer ring is enlarged, and one end of the spiral retainer ring is hooked and fixed by the fixed jaw; the movable jaw 3 is inserted into the narrow groove of the tool body 1, and is limited in the narrow groove through the sliding groove 4 fixed on the tool body, the movable jaw 3 hooks the other end of the spiral check ring to slide along the arc direction in the narrow groove of the tool body, the diameter of the spiral check ring is enlarged, the spiral check ring is pushed into the mounting groove along one end of the shaft assembled by the spiral check ring, the movable jaw 3 is loosened after the mounting groove is positioned, the spiral check ring enters the mounting groove on the shaft, and the mounting tool is separated from the part.
The tool body 1 is of a structure in the shape of a circular arc surface, the length of the circular arc surface is smaller than that of a semicircle, and the tool is convenient to separate from a part after the spiral retainer ring is installed in place, as shown in figure 2. A step S1 is arranged at one end of the arc along the inner side of the arc surface, and the height of the step is equal to the total thickness of the spiral retainer ring and used for limiting the spiral retainer ring. A square groove is formed in one end of the arc along the end face of the outer side of the arc, the depth of the groove is equal to the total thickness of the spiral retainer ring, the square groove is used for installing the fixed jaw 2, and 2 through holes of the fixed part of the fixed jaw are fastened on 2 threaded holes in the tool body through screws. One end close to the square groove is provided with a through hole which is narrow along the circumferential direction, namely a rectangular groove, the width of the through hole is equal to the total thickness of the spiral retainer ring, and the movable jaw 3 is inserted into the narrow through hole. The sliding chute 4 is fixed on the other 2 threaded holes on the tool body through 2 through holes on the sliding chute by screws. The fixed jaw 2 is placed in a square groove of the end face, and is fastened on a threaded hole on the tool body through a hole of the fixed part 2 by a screw. The movable jaw 3 is inserted in the narrow hole and limited to slide in the range of the narrow through hole by the step on the sliding chute 4. The slide groove 4 is fixed on the tool body through 2 holes by screws.
As shown in figure 2, the tool body 1 can be made of aluminum alloy materials and is light and convenient to use; the tool body is of a structure in the shape of a circular arc surface, the length of the circular arc surface is smaller than a semicircle, and the tool is convenient to separate from a part after the spiral retainer ring is installed in place; the bending radius r1 of the inner side of the cambered surface is larger than the radius of a shaft assembled by the spiral retainer ring, and the assembly process does not interfere with the shaft after the spiral retainer ring is enlarged; a step is arranged at one end of the arc along the inner side of the arc surface and used for limiting the elastic retainer ring, the bending radius r2 is the sum of the radius of the assembled shaft of the spiral retainer ring after the diameter of the spiral retainer ring is enlarged and the radial width of the spiral retainer ring, the inner diameter of the assembled shaft of the spiral retainer ring after the spiral retainer ring is enlarged is larger than the diameter of the assembled shaft, the smooth shaft passing through the assembled position is ensured, and the distance from the bending radius r2 to the end surface width S1 is the thickness of the retainer ring (namely 2 times of the material thickness delta of the retainer ring). A square groove is arranged at one end of the arc along the outer end face of the arc, the depth of the groove is equal to the thickness of the clamping ring, the square groove is used for installing the fixed jaw 2, and the square groove is fastened on 2 threaded holes in the tool body through 2 through holes in the fixed part of the fixed jaw by screws. There is one along the narrower through-hole of circumferencial direction near square groove one end to with apart from terminal surface S1 step parallel and level, square groove width S2 is equivalent to spiral retaining ring material thickness, and movable jaw 3 just inserts in this narrower through-hole, and spout 4 is on 2 other screw holes of fix with screw on the tool body through 2 through-holes on it.
As shown in fig. 3, the thickness δ 1 of the fixed jaw 2 is equal to the thickness of the material of the spiral retainer ring, and the fixed jaw is placed in a square groove on the end face of the tool body and fastened on 2 threaded holes on the tool body by screws through 2 through holes of the fixed part of the fixed jaw. The working surface of the fixed jaw (the contact surface with the spiral retainer ring) is matched with the end of the spiral retainer ring in size (including circular arc, height and the like) so as to improve the contact surface during working and ensure that the end of the spiral retainer ring is stably hooked in the operation process. The fixed jaw is made of alloy steel, and the thickness of the fixed jaw is equivalent to that of a spiral retainer ring material, and the fixed jaw is thin and easy to deform in use, and the fixed jaw needs to be subjected to heat treatment to reach the hardness of HRC 45-50.
As shown in figure 4, the thickness of the movable jaw 3 is equal to the thickness of the material of the spiral retainer ring, the movable jaw 3 is inserted into the narrow through hole of the tool body, and 1 convex edge delta 2 slides in the narrow hole range under the limitation of the step of the sliding groove 4. The working surface of the movable jaw (the contact surface with the spiral retainer ring) is matched with the end of the spiral retainer ring in size (including circular arc, height and the like) so as to improve the contact surface during working and ensure that the other end of the spiral retainer ring is stably hooked in the operation process. The sliding jaw is made of alloy steel, and is easy to deform in use due to the fact that the thickness of the sliding jaw is equal to that of a spiral retainer ring material and is thin, and heat treatment is needed to achieve the hardness of HRC 45-50.
The sliding groove 4 is also of an arc surface structure, and the arc surface is matched with the outer surface of the tool body and is fastened on the tool body through screws. The step at the end of the cambered surface is buckled on the convex edge delta 2 on the movable jaw to limit the movable jaw to slide in the range of the narrow through hole.
Fig. 5 is a schematic view of the use of the tool of the present invention. The use of the tool of the present invention is described in further detail below with respect to fig. 5. Firstly, shifting the movable jaw to a position close to the fixed jaw; inserting the opening of the spiral retainer ring into the jaw, pressing one layer of the spiral retainer ring by using the fixed jaw, and respectively hooking two ends of the spiral retainer ring by using the fixed jaw and the movable jaw; the movable jaw is shifted towards the opposite direction (anticlockwise direction in the figure) of the fixed jaw, the inner hole of the spiral retainer ring is enlarged, and when the inner hole is larger than the diameter of the shaft, the spiral retainer ring is sleeved on the shaft and leans against an assembly part (such as a bearing) on the shaft; and when the sliding jaw is loosened, the spiral retaining ring rebounds, the diameter of the spiral retaining ring is reduced and the spiral retaining ring is clamped in the groove, and the fixed jaw and the movable jaw are separated from the spiral retaining ring. And finishing the installation of the spiral retainer ring.
The tool for installing the spiral retainer ring for the shaft is convenient to operate; the device is not limited by the length of the shaft, and has no influence on the installation of the spiral retainer ring no matter the length of the shaft; the installation structure is not limited by the small space between the installation groove on the shaft and the adjacent structure, for example, the installation of the installation groove of the spiral retainer ring can be smoothly carried out by the adjacent parts (such as a bearing on figure 5); the shaft is not damaged in the installation process, if the shaft is made of an aluminum alloy type soft material, the inner diameter of the spiral retainer ring can be enlarged to be larger than the diameter of the shaft, and the spiral retainer ring is not scratched with the shaft, so that the shaft is not damaged; because the tool is of a cambered surface structure and the movable jaw range can be controlled, the tool can be used for installing the spiral retainer ring by expanding the diameter of the spiral retainer ring to be larger than the diameter of the shaft, the spiral retainer ring cannot generate plastic deformation, and the work is reliable; the shape of the jaw structure is matched with that of the end of the spiral retainer ring, the contact surface is large, and the fixed jaw presses one layer of the spiral retainer ring, so that the sliding cannot occur when the diameter of the spiral retainer ring is enlarged; the jaw is made of alloy steel materials, the hardness of the jaw reaches more than HRC45, the use strength requirement can be ensured, and deformation cannot be generated. Therefore, the tool provided by the invention is very suitable for the installation operation of the spiral retainer ring.
Claims (8)
1. The tool for mounting the spiral retainer ring for the shaft is characterized by comprising a tool body (1), a fixed jaw (2), a movable jaw (3) and a sliding groove (4), wherein the tool body (1) is of an arc structure smaller than a semicircle, the front end of the tool body (1) is provided with a step with the height consistent with the total thickness of the spiral retainer ring, the front end of the tool body (1) is also provided with a square groove, and a rectangular groove parallel to the front end surface of the tool body (1) is arranged beside the square groove; the fixed jaw (2) is arranged on a square groove of the tool body (1), and a jaw part of the fixed jaw (2) extends out of the lower part of the tool body (1) from the square groove; the movable jaw (3) is slidably arranged in a rectangular groove of the tool body (1), the jaw part of the movable jaw (3) extends out of the lower part of the tool body (1) from the rectangular groove, and the sliding groove (4) is arranged above the tool body (1) to limit the jaw of the movable jaw (3) to slide in the rectangular groove.
2. The tool for installing the spiral retainer ring for the shaft as claimed in claim 1, wherein the width of the jaw portion of the fixed jaw (2) is the same as the single thickness of the spiral retainer ring.
3. The tool for mounting the spiral retainer ring for the shaft as claimed in claim 2, wherein the lower surface of the fixed jaw (2) is fixedly connected with the upper surface of the tool body (1), the jaw part of the fixed jaw (2) is arranged at the front end of the fixed jaw (2), the jaw part of the fixed jaw (2) extends downwards out of the lower surface of the tool body (1) along the square groove, and the bottom of the jaw part protrudes rightwards to form a contact surface with the spiral retainer ring.
4. The tool for installing the spiral retainer ring for the shaft as claimed in claim 1, wherein the width of the jaw part of the movable jaw (3) is consistent with the single thickness of the spiral retainer ring.
5. The tool for mounting the spiral retainer ring for the shaft is characterized in that the sliding chute (4) is fixedly mounted on the upper surface of the tool body (1), a gap is reserved between the sliding chute (4) and the tool body (1), the rear side of the movable jaw (3) is provided with a convex edge, and the convex edge of the movable jaw (3) is inserted into the gap; the bottom of the movable jaw (3) is the jaw part of the movable jaw (3), the jaw part of the movable jaw (3) extends out of the lower surface of the tool body (1) downwards along the rectangular groove, and the bottom of the jaw part protrudes leftwards to form a contact surface with the spiral retainer ring.
6. The tool for installing the spiral retainer ring for the shaft as claimed in claim 1, wherein handles are arranged above the fixed jaw (2) and the movable jaw (3).
7. The tool for installing the spiral retainer ring for the shaft according to claim 1, wherein the jaw portions of the fixed jaw (2) and the movable jaw (3) are made of alloy steel and are heat-treated to have a hardness of HRC 45-50.
8. A use method of the tool for installing the spiral retainer ring for the shaft is characterized in that the tool for installing the spiral retainer ring for the shaft as claimed in any one of claims 1 to 7 is used, wherein the spiral retainer ring is placed on the step surface of the tool body, one end of the spiral retainer ring is hooked by the jaw part of the fixed jaw, the movable jaw is slid to the position closest to the fixed jaw, and the other end of the spiral retainer ring is hooked by the jaw part of the movable jaw; then the movable jaw is slid towards the direction far away from the fixed jaw so as to open the spiral retainer ring, the shaft part is placed in the spiral retainer ring, the spiral retainer ring installation groove is aligned with the spiral retainer ring, finally the movable jaw is slid to the position closest to the fixed jaw again to tighten the two ends of the spiral retainer ring, and finally the installation tool is disengaged from the shaft part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211169973.9A CN115533774A (en) | 2022-09-23 | 2022-09-23 | Mounting tool for spiral retainer ring for shaft and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211169973.9A CN115533774A (en) | 2022-09-23 | 2022-09-23 | Mounting tool for spiral retainer ring for shaft and using method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115533774A true CN115533774A (en) | 2022-12-30 |
Family
ID=84730556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211169973.9A Pending CN115533774A (en) | 2022-09-23 | 2022-09-23 | Mounting tool for spiral retainer ring for shaft and using method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115533774A (en) |
-
2022
- 2022-09-23 CN CN202211169973.9A patent/CN115533774A/en active Pending
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