Device for installing snap spring in casing forming machine

Abstract

The utility model relates to the technical field of casing forming machines, and discloses a device for installing a snap spring in a casing forming machine, which comprises a base, at least two threaded rods are vertically welded on the base, a pressing plate is correspondingly provided with through holes and is in sliding fit with the threaded rods through the through holes, and nuts are installed on the threaded rods on the pressing plate. The base is used for supporting the tail end of the thread bushing, a circular opening is formed in the center of the pressing plate, the inner diameter of the circular opening is larger than the diameter of a bearing inner ring and smaller than the diameter of a bearing outer ring, and the nut is rotated to achieve pressing of the bearing by the pressing plate and installation of the snap spring; through the arrangement of the base, the threaded rod and the pressing plate, the pressing plate is close to the base under the action of the nut, the pressing plate presses the bearing on the threaded sleeve downwards, and the snap spring is installed after the snap spring groove is exposed; the bearing is pressed downwards through the pressing plate, so that the pressure borne by the bearing by the pressing plate is uniform, and the bearing cannot be damaged in the snap spring mounting process.

Description

Technical Field

[0001] The utility model relates to the technical field of casing forming machines, in particular to a device for installing a retaining spring in a casing forming machine. Background Art

[0002] The production of collagen casings requires the use of a forming machine. The spiral sleeve in the forming machine is an important component for weaving the transverse fibers of the collagen casings. During use, when the mechanical seal is damaged, the material will enter the bearing, causing damage to the bearing. Once the bearing is damaged, it will cause a series of chain reactions (damage to the transmission shaft and gears), which will directly affect the weaving of the transverse fibers. Therefore, the forming machine needs to be maintained regularly to produce qualified products. Two bearings need to be installed on the spiral sleeve, and there is a spring between the two bearings. During the previous installation, the bearings needed to be clamped with a bench vise to install the retaining spring, but the bench vise applied uneven force to the bearings, so it is easy to damage the bearings during installation. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a device for installing a retaining ring in a casing forming machine. By setting a base, a threaded rod and a pressure plate, the pressure plate is brought close to the base under the action of a nut, and the pressure plate presses down the bearing on the threaded sleeve to expose the retaining ring groove to achieve the installation of the retaining ring. By pressing the bearing down with the pressure plate, the pressure of the pressure plate on the bearing can be evenly distributed, and the bearing will not be damaged during the installation of the retaining ring.

[0004] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0005] A device for installing a retaining ring in a casing forming machine includes a base, at least two threaded rods are vertically welded on the base, a pressure plate is correspondingly provided with through holes and slidingly cooperates with the threaded rods through the through holes, a nut is installed on the threaded rod above the pressure plate, the base is used to support the end of the threaded sleeve, a circular opening is provided at the center of the pressure plate, the inner diameter of the circular opening is larger than the diameter of the inner ring of the bearing and smaller than the diameter of the outer ring of the bearing, the nut is rotated to realize the pressure plate pressing down the bearing, and the retaining ring is installed.

[0006] The utility model provides a base, a threaded rod and a pressure plate, and under the action of a nut, the pressure plate is brought close to the base, and the pressure plate presses down the bearing on the threaded sleeve, and the retaining ring groove is exposed to realize the installation of the retaining ring; by pressing the bearing down by the pressure plate, the pressure of the pressure plate on the bearing can be uniform, and the bearing will not be damaged during the installation of the retaining ring.

[0007] As a further implementation, the base is a circular plate structure.

[0008] As a further implementation, the threaded rods are close to the edge of the base and are evenly arranged along the circumferential direction.

[0009] As a further implementation, the outer diameter of the pressing plate is the same as the outer diameter of the base.

[0010] As a further implementation, a threaded rod is provided on the working surface at the top of the base.

[0011] As a further implementation, a positioning groove structure is provided at the center of the working surface.

[0012] As a further implementation, the length of the threaded rod is greater than the length of the threaded sleeve.

[0013] As a further implementation, the base has a thickness of 1-2 cm.

[0014] As a further implementation, the base has a diameter of 20-25 cm.

[0015] As a further implementation, two threaded rods are provided.

[0016] The beneficial effects of the above utility model are as follows:

[0017] 1. The utility model provides a base, a threaded rod and a pressure plate. Under the action of a nut, the pressure plate is brought close to the base, and the pressure plate presses down the bearing on the threaded sleeve to expose the retaining ring groove and then the retaining ring is installed. By pressing down the bearing with the pressure plate, the pressure of the pressure plate on the bearing can be evenly applied, and the bearing will not be damaged during the installation of the retaining ring.

[0018] 2. The positioning groove on the base of the utility model can effectively position the bottom end of the threaded sleeve, ensuring that the threaded sleeve will not separate from the base during the installation of the retaining spring, thereby ensuring safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0020] Figure 1 It is a schematic diagram of the overall structure of a device for installing a retaining spring in a casing forming machine according to an embodiment of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the spiral sleeve of the utility model;

[0022] Figure 3 It is a schematic diagram of the structure of the utility model after the spiral sleeve is installed with the bearing.

[0023] In the figure: the distances or sizes between parts are exaggerated to show the positions of various parts, and the schematic diagram is for reference only.

[0024] Wherein: 1. base, 2. working surface, 3. first threaded rod, 4. second threaded rod, 5. pressure plate, 6. through hole, 7. circular opening, 8. nut, 9. threaded sleeve, 10. bottom end of threaded sleeve, 11. retaining ring groove, 12. bearing, 13. spring; 91. mounting shaft, 111. retaining ring. DETAILED DESCRIPTION

[0025] It should be noted that the following detailed descriptions are all illustrative and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0026] Embodiment 1

[0027] In a typical implementation of the present invention, reference is made to Figure 1 As shown, a device for installing a retaining ring in a casing forming machine includes a base 1, at least two threaded rods are vertically welded on the base 1, a through hole 6 is correspondingly provided on the pressure plate 5 and slidably cooperates with the threaded rod through the through hole, a nut is installed on the threaded rod above the pressure plate 5, the base 1 is used to support the end of the threaded sleeve, a circular opening 7 is provided at the center of the pressure plate 5, the inner diameter of the circular opening 7 is larger than the inner ring diameter of the bearing and smaller than the outer ring diameter of the bearing, the nut is rotated to realize the pressure plate pressing down the bearing, and the retaining ring 111 is installed.

[0028] like Figure 1 As shown, the base plays a role in supporting the threaded sleeve 9, and the base is preferably a circular steel plate structure, with a thickness of 1-2 cm, preferably a thickness of 1 cm, and a diameter of 20-25 cm, preferably a diameter of 20 cm.

[0029] The top surface of the base 1 is a working surface 2, which serves as a supporting surface. A plurality of threaded rods are vertically welded on the working surface 2. The threaded rods extend upward and have the same length.

[0030] like Figure 1 As shown, the pressing plate is provided with a through hole 6, and the through hole 6 is arranged corresponding to the threaded rod, so that the threaded rod can pass through the through hole, and the pressing plate and the threaded rod can slide together. The inner diameter of the through hole 6 is larger than the outer diameter of the threaded rod. After the pressing plate is installed on the threaded rod, a nut 8 is installed on the threaded rod. The nut 8 is located above the pressing plate. The nut 8 is turned so that the nut 8 can move downward along the threaded rod and press down the pressing plate 5, so that the pressing plate 5 moves toward the direction close to the base 1.

[0031] In a preferred example, two threaded rods are welded on the working surface of the base, namely the first threaded rod 3 and the second threaded rod 4, and the two threaded rods are close to the edge of the base and are evenly arranged along the circumferential direction. The through hole is opened at the edge of the pressure plate. The outer diameter of the pressure plate is the same as the outer diameter of the base.

[0032] It is understandable that the length of the threaded rod needs to be greater than the length of the threaded sleeve to ensure that the device can be used to install the retaining ring 111 on the threaded sleeve.

[0033] like Figure 2 As shown, the threaded sleeve 9 includes a mounting shaft 91 for mounting a bearing 12, a spring 13, and a retaining spring groove 11. The retaining spring groove 11 is located at the top of the mounting shaft 91. When replacing a bearing, it is necessary to first sleeve the first bearing on the threaded sleeve mounting shaft 91, and slide along the mounting shaft 91 axially to the bottom end 10 of the threaded sleeve, then sleeve the spring 13, and then install the second bearing 12. However, under the action of the spring 13, the second bearing 12 cannot move below the retaining spring groove 11, making it inconvenient to install the retaining spring. In order to install the retaining spring in the retaining spring groove 11 of the mounting shaft 91, it is necessary to press down the second bearing to expose the retaining spring groove 11, then install the retaining spring, and press down the second bearing, which needs to be achieved by using the pressure plate of this embodiment.

[0034] When installing the retaining ring, first install the first bearing 12 and the spring 13 on the mounting shaft 91, then install the second bearing 12, then the bottom end 10 of the threaded sleeve needs to be abutted against the center position of the working surface 2 of the base 1, and then install the pressure plate and the nut. The axis of the top end of the threaded sleeve 9 is in the same straight line with the axis of the circular opening 7 of the pressure plate 5.

[0035] Then use a wrench or other tool to rotate the nut 8, the nut 8 presses down the pressure plate 5, the pressure plate 5 abuts against the second bearing 12 through the circular opening 7, continue to rotate the nut 8, the pressure plate presses down the second bearing 12, the distance between the two bearings decreases, continue to rotate the nut 8 until the pressure plate presses down the second bearing 12 to the set distance, the retaining ring groove 11 is exposed, and then the retaining ring can be installed.

[0036] After the retaining ring is installed in the retaining ring groove 11, the spring 13 is in a compressed state, the nut is rotated in the opposite direction, the pressure plate is loosened, and under the action of the spring 13, the two bearings are pressed against the installation shaft 91, thereby realizing the installation of the retaining ring.

[0037] In a preferred example, in order to better position the bottom end of the thread groove, a positioning groove structure is provided at the center of the working surface of the base, and the positioning groove is used to position the bottom end 10 of the thread groove. The bottom end 10 of the thread groove is a gear structure, which is a prior art. The shape of the positioning groove is adapted to the shape of the bottom end 10 of the thread groove, ensuring that the bottom end 10 of the thread groove can be clamped in the positioning groove, and when the pressure plate presses down the bearing, the thread sleeve will not slide. The structure of the thread sleeve after installing the retaining spring is as follows Figure 3As shown. By setting a base, a threaded rod and a pressure plate, the pressure plate 5 is brought close to the base 1 under the action of a nut, and the pressure plate 5 presses down the bearing 12 on the mounting shaft 91, and the retaining ring groove 11 is exposed to realize the installation of the retaining ring; by pressing down the bearing 12 by the pressure plate 5, the pressure of the pressure plate 5 on the bearing can be uniform, and the bearing 12 will not be damaged during the installation of the retaining ring. It is understandable that the device can be used when disassembling the bearing on the threaded sleeve or installing the bearing during maintenance.

[0038] The utility model provides a base, a threaded rod and a pressure plate, and under the action of a nut, the pressure plate is brought close to the base, and the pressure plate presses down the bearing on the threaded sleeve, and the retaining ring groove is exposed to realize the installation of the retaining ring; by pressing the bearing down by the pressure plate, the pressure of the pressure plate on the bearing can be uniform, and the bearing will not be damaged during the installation of the retaining ring.

[0039] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A device for installing a retaining spring in a casing forming machine, characterized in that: It includes a base, at least two threaded rods are vertically welded on the base, through holes are correspondingly provided on the pressure plate and slidingly cooperate with the threaded rods through the through holes, a nut is installed on the threaded rod above the pressure plate, the base is used to support the end of the threaded sleeve, a circular opening is provided at the center of the pressure plate, the inner diameter of the circular opening is larger than the diameter of the inner ring of the bearing and smaller than the diameter of the outer ring of the bearing, the nut is rotated to realize the pressure plate pressing down the bearing, and the retaining spring is installed; the base is a circular plate-like structure, the threaded rods are close to the edge of the base and are evenly arranged along the circumferential direction; a positioning groove structure is provided at the center of the working surface on the top of the base.

2. A device for installing a retaining spring in a casing forming machine according to claim 1, characterized in that: The outer diameter of the pressing plate is the same as the outer diameter of the base.

3. The device for installing a retaining spring in a casing forming machine according to claim 1, characterized in that: A threaded rod is arranged on the working surface at the top of the base.

4. The device for installing a retaining spring in a casing forming machine according to claim 1, characterized in that: The length of the threaded rod is greater than the length of the threaded sleeve.

5. A device for installing a retaining spring in a casing forming machine according to claim 4, characterized in that: The base has a thickness of 1-2 cm.

6. The device for installing a retaining spring in a casing forming machine according to claim 1, characterized in that: The base has a diameter of 20-25 cm.

7. The device for installing a retaining spring in a casing forming machine according to claim 1, characterized in that: There are two threaded rods.

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