Hook type plastic retainer suitable for different roller pin outer diameters

Abstract

The utility model relates to the technical field of hook-type plastic retainers, and discloses a hook-type plastic retainer suitable for different roller pin outer diameters, the hook-type plastic retainer comprises an upper mounting ring and a lower mounting ring, the inner wall of the upper mounting ring is fixedly connected with a plurality of hooks, the interiors of a plurality of insertion holes are slidably connected with insertion rods, and springs are fixedly connected between every two insertion rods in one group; one end of each inserting rod is fixedly connected with a baffle, and the outer wall of each inserting rod is rotationally connected with a rotating sleeve. According to the hook-type plastic retainer suitable for the roller pins with different outer diameters, the retainer can adapt to the roller pins with different outer diameters through the arrangement of the insertion rods, the springs, the rotating sleeves and the pressing rings, the springs are compressed by pressing the pressing rings, and the insertion rods can slide in the insertion holes and then break away from the limitation of the insertion holes, so that the insertion rods can be taken down; the rolling needle can be stably fixed in the retainer, and the rotating sleeve and the pressing ring are convenient for a user to operate and adjust.

Description

Technical Field

[0001] The present application relates to the technical field of hook-type plastic retainers, and in particular to a hook-type plastic retainer adapted to different roller outer diameters. Background Art

[0002] Needle roller bearings are roller bearings with cylindrical rollers. Relative to their diameter, the rollers are thin and long. The core component inside the needle roller bearing is the rolling element. The cage is a protective component of the rolling element, partially wrapping all or part of the rolling element and moving with it. It is used to isolate the rolling element and usually guide the rolling element and keep it in the bearing.

[0003] The existing patent (publication number: CN208919095U) discloses a hook-type plastic retainer that can adapt to different outer diameters of needle rollers, including a protective rod and a connecting ring, the outer surface of the protective rod is fixedly connected to a hook, the connecting ring is located on the outside of the protective rod, an upper mounting plate is arranged above the protective rod, and slide rails are provided inside the upper mounting plate and the lower mounting plate, mounting grooves are provided at the left ends of the upper mounting plate and the lower mounting plate, mounting blocks are provided at the right ends of the upper mounting plate and the lower mounting plate, and a second mounting hole is provided inside the mounting block, and second screws are provided on the outsides of the upper mounting plate and the lower mounting plate.

[0004] The above-mentioned comparative document points out that the device can adapt to the hook-type plastic retainer with different needle roller outer diameters. By adjusting the distance between the protective rods, the retainer can adapt to the needle roller outer diameters of different bearings, reduce the friction between the retainer and the bearing needle roller, reduce the wear of the retainer, and facilitate the quick disassembly and installation of the retainer in the bearing. However, when adjusting the device, the process is more cumbersome and the screws need to be removed before adjustment can be made. The process is more complicated and there is a risk of losing the screws after removal. Utility Model Content

[0005] In response to the shortcomings of the prior art, the present application provides a hook-type plastic retainer that can adapt to different needle roller outer diameters and has the advantages of easy adjustment. It solves the problem that the adjustment process of the device is cumbersome and the screws need to be removed before adjustment can be made. The process is relatively complicated and there is a risk of losing the screws after removal.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a hook-type plastic retainer adaptable to different needle roller outer diameters, comprising an upper mounting ring and a lower mounting ring, wherein the inner wall of the upper mounting ring is fixedly connected with a plurality of hooks, and the upper mounting ring and the lower mounting ring are each provided with two mounting holes and a plurality of insertion holes, wherein the plurality of insertion holes are slidably connected with insertion rods, and a plurality of insertion rods are fixedly connected with springs between groups of two, a plurality of insertion rods are fixedly connected with baffles at one end, a plurality of insertion rods are rotatably connected with rotating sleeves on their outer walls, and a plurality of insertion rods are fixedly connected with pressing rings and baffle rings on their outer walls.

[0007] Through the above scheme, by setting the insertion rod, spring, rotating sleeve and pressing ring, the retaining frame can adapt to needle rollers with different outer diameters. By pressing the pressing ring to compress the spring, the insertion rod can slide in the socket and then break away from the restriction of the socket so that it can be removed. During installation, the spring provides appropriate pressure to fix the insertion rod inside the socket, so that the needle roller can be firmly fixed in the retaining frame. The rotating sleeve and the pressing ring are convenient for users to operate and adjust.

[0008] Furthermore, the four mounting holes are all fixedly connected with fixing rods, one end of the four fixing rods is fixedly connected with a threaded column, and the outer walls of the four fixing rods are rotatably connected with threaded sleeves in groups of two.

[0009] Through the above scheme, the two fixing rods can be moved by rotating the threaded sleeve, thereby adjusting the distance between the upper mounting ring and the lower mounting ring, so that the retaining frame can adapt to needle rollers of different lengths, thereby improving its versatility and adaptability.

[0010] Furthermore, the outer walls of the upper mounting ring and the lower mounting ring are each provided with two countersunk holes, and fixing bolts are rotatably arranged inside the four countersunk holes.

[0011] Through the above solution, the design of the countersunk hole enables the head of the fixing bolt to be completely sunk into the hole, thereby ensuring a neat appearance after installation.

[0012] Furthermore, the plurality of springs are fixedly arranged inside the rotating sleeve.

[0013] Through the above solution, the spring is used to provide a certain pressure for the two insertion rods so that they will not move when inserted into the insertion holes.

[0014] Furthermore, the plurality of baffles are slidably arranged inside the rotating sleeve.

[0015] Through the above solution, the baffle is arranged to cooperate with the rotating sleeve to limit the extension distance of the insertion rod.

[0016] Furthermore, the plurality of threaded columns are threadedly connected in groups of two each inside the threaded sleeve.

[0017] Through the above scheme, the bidirectional thread arranged inside the threaded sleeve can make the threaded column move up and down when the threaded sleeve is rotated.

[0018] Furthermore, the four fixing bolts all pass through the countersunk holes and are threadedly connected with the threaded holes.

[0019] Through the above solution, the fixing rod passes through the countersunk hole through the fixing bolt and extends to the inside of the threaded hole to be fixed to the upper mounting ring and the lower mounting ring.

[0020] Furthermore, the upper mounting ring and the lower mounting ring are both made of engineering plastics.

[0021] Through the above scheme, the engineering plastic has excellent wear resistance, corrosion resistance and temperature resistance, which can ensure that the cage can work normally even in harsh environments.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] The hook-type plastic retainer adapts to different outer diameters of needle rollers. The retainer can adapt to needle rollers with different outer diameters by arranging the insertion rod, the spring, the rotating sleeve and the pressing ring. The spring is compressed by pressing the pressing ring so that the insertion rod can slide in the insertion hole and then break away from the restriction of the insertion hole so that it can be removed. During installation, the spring provides appropriate pressure so that the insertion rod is inserted and fixed in the insertion hole, so that the needle roller can be firmly fixed in the retainer. The rotating sleeve and the pressing ring are convenient for users to operate and adjust. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of this application;

[0025] Figure 2 This is a schematic diagram of the mounting ring structure of the present application;

[0026] Figure 3 A schematic diagram of the rod structure of the present application;

[0027] Figure 4 A schematic diagram of the fixing rod structure of the present application;

[0028] Figure 5 This is a schematic diagram of the installation structure after adjustment of the structure of this application.

[0029] In the figure:

[0030] 1. Upper mounting ring; 2. Lower mounting ring; 3. Hook; 4. Mounting hole; 5. Insertion hole; 6. Insertion rod; 7. Spring; 8. Baffle; 9. Rotating sleeve; 10. Pressing ring; 11. Baffle ring; 12. Fixing rod; 13. Threaded sleeve; 14. Threaded hole; 15. Countersunk hole; 16. Fixing bolt; 17. Threaded column. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] See also Figure 1 , Figure 2 and Figure 3 The hook-type plastic retainer adapted to different needle roller outer diameters in this embodiment comprises an upper mounting ring 1 and a lower mounting ring 2, a plurality of hooks 3 are fixedly connected to the inner wall of the upper mounting ring 1, two mounting holes 4 and a plurality of insertion holes 5 are provided inside the upper mounting ring 1 and the lower mounting ring 2, a plurality of insertion holes 5 are slidably connected to insertion rods 6, the design of the insertion holes 5 and the insertion rods 6 enables the retainer to have a certain flexibility to adapt to needle rollers of different outer diameters, a plurality of insertion rods 6 are fixedly connected with springs 7 between two of each other, the setting of the springs 7 enables the insertion rods 6 to have a certain pressure in the insertion holes 5, which ensures the stability of the needle roller after being fixed and prevents it from loosening or falling off during use, a baffle 8 is fixedly connected to one end of the plurality of insertion rods 6, a rotating sleeve 9 is rotatably connected to the outer walls of the plurality of insertion rods 6, and a pressing ring 10 and a baffle ring 11 are fixedly connected to the outer walls of the plurality of insertion rods 6.

[0033] See also Figure 1 , Figure 4 and Figure 5 , the four mounting holes 4 are fixedly connected with fixing rods 12, one end of the four fixing rods 12 is fixedly connected with a threaded column 17, the outer walls of the four fixing rods 12 are rotatably connected with a threaded sleeve 13 in a group of two, and the two fixing rods 12 can be moved by rotating the threaded sleeve 13, so as to adjust the spacing between the upper mounting ring 1 and the lower mounting ring 2, so that the retaining frame can adapt to rollers of different lengths, thereby improving its versatility and adaptability. The outer walls of the upper mounting ring 1 and the lower mounting ring 2 are each provided with two countersunk holes 15, and fixing bolts 16 are rotatably arranged inside the four countersunk holes 15. The design of the countersunk holes 15 enables the heads of the fixing bolts 16 to be completely sunk into the holes, thereby ensuring a neat appearance after installation.

[0034] See also Figure 1 , Figure 3 and Figure 4, multiple springs 7 are fixedly arranged inside the rotating sleeve 9, and the springs 7 are used to provide a certain pressure for the two plug rods 6 so that they will not move when inserted into the socket 5. Multiple baffles 8 are slidably arranged inside the rotating sleeve 9, and the baffles 8 are arranged to cooperate with the rotating sleeve 9 to limit the extension distance of the plug rod 6. Multiple threaded columns 17 are threadedly connected to the inside of the threaded sleeve 13 in groups of two. Through the bidirectional thread arranged inside the threaded sleeve 13, when the threaded sleeve 13 is rotated, the threaded columns 17 can move up and down. Four fixing bolts 16 all pass through the countersunk holes 15 and are threadedly connected to the threaded holes 14. The fixing rod 12 passes through the countersunk holes 15 through the fixing bolts 16 and extends to the inside of the threaded holes 14 to be fixed to the upper mounting ring 1 and the lower mounting ring 2. The upper mounting ring 1 and the lower mounting ring 2 are made of engineering plastics. Engineering plastics have excellent wear resistance, corrosion resistance and temperature resistance, which can ensure that the retaining frame can work normally even in harsh environments.

[0035] In this embodiment, the hook-type plastic retainer that can adapt to different outer diameters of needle rollers can adapt to needle rollers of different outer diameters through the arrangement of the insertion rod 6, spring 7, rotating sleeve 9 and pressing ring 10. The spring 7 is compressed by pressing the pressing ring 10, so that the insertion rod 6 can slide in the socket 5 and then break away from the restriction of the socket 5 so that it can be removed. During installation, the spring 7 provides appropriate pressure to fix the insertion rod 6 in the socket 5, so that the needle roller can be firmly fixed in the retainer. The rotating sleeve 9 and the pressing ring 10 are convenient for users to operate and adjust.

[0036] It should be noted that the thread inside the threaded sleeve 13 is a bidirectional thread.

[0037] The working principle of the above embodiment is:

[0038] First, the threaded sleeve 13 is rotated to move the fixing rod 12 along the threaded column 17, thereby adjusting the spacing between the two rings, and fixing it with the upper mounting ring 1 and the lower mounting ring 2 through the fixing bolt 16. The insertion rod 6 is fixed inside the socket 5 by the elastic force of the spring 7. The insertion rod 6 holds the needle roller between the two insertion rods 6 and firmly fixes it in the retainer. If the position of the insertion rod 6 needs to be adjusted to accommodate needle rollers of different outer diameters, the pressing ring 10 can be pressed to slide the insertion rod 6 inside the socket 5, and the spring 7 can be compressed to make the insertion rod 6 detach from the socket 5, and then the insertion rod 6 can be removed.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0040] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A hook-type plastic retainer adapted to different needle roller outer diameters comprises an upper mounting ring (1) and a lower mounting ring (2), characterized in that: The inner wall of the upper mounting ring (1) is fixedly connected with a plurality of hooks (3); the upper mounting ring (1) and the lower mounting ring (2) are each provided with two mounting holes (4) and a plurality of insertion holes (5); the plurality of insertion holes (5) are each slidably connected with an insertion rod (6); a spring (7) is fixedly connected between the plurality of insertion rods (6) in pairs; a baffle plate (8) is fixedly connected to one end of the plurality of insertion rods (6); a rotating sleeve (9) is rotatably connected to the outer wall of the plurality of insertion rods (6); and a pressing ring (10) and a baffle ring (11) are fixedly connected to the outer wall of the plurality of insertion rods (6).

2. The hook-type plastic cage adapted to different needle roller outer diameters according to claim 1, characterized in that: The four mounting holes (4) are all fixedly connected with fixing rods (12) inside, one end of the four fixing rods (12) is fixedly connected with a threaded column (17), and the outer walls of the four fixing rods (12) are rotatably connected with threaded sleeves (13) in groups of two.

3. The hook-type plastic cage adapted to different needle roller outer diameters according to claim 1, characterized in that: The outer walls of the upper mounting ring (1) and the lower mounting ring (2) are each provided with two countersunk holes (15), and fixing bolts (16) are rotatably arranged inside the four countersunk holes (15).

4. The hook-type plastic cage adapted to different needle roller outer diameters according to claim 1, characterized in that: The plurality of springs (7) are all fixedly arranged inside the rotating sleeve (9).

5. The hook-type plastic cage adapted to different needle roller outer diameters according to claim 1, characterized in that: The plurality of baffles (8) are all slidably arranged inside the rotating sleeve (9).

6. The hook-type plastic cage adapted to different needle roller outer diameters according to claim 2, characterized in that: The plurality of threaded columns (17) are threadedly connected in groups of two each to the interior of the threaded sleeve (13).

7. The hook-type plastic cage adapted to different needle roller outer diameters according to claim 3, characterized in that: The four fixing bolts (16) all pass through the countersunk holes (15) and are threadedly connected to the threaded holes (14).

8. The hook-type plastic cage adapted to different needle roller outer diameters according to claim 1, characterized in that: The upper mounting ring (1) and the lower mounting ring (2) are both made of engineering plastic material.

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