Internal thread rod end knuckle bearing

Abstract

The utility model discloses an internal thread rod end knuckle bearing which comprises a bottom rod, an outer ring and an inner ring and further comprises an internal thread arranged on the inner cavity wall of the bottom rod; the end part of the connecting rod is connected with the internal thread through a thread; the limiting assembly is arranged on the inner wall of the bottom rod; the limiting assembly comprises a containing groove which is formed in the wall cavity of the bottom rod. The plurality of mounting grooves are uniformly distributed on one side of the accommodating groove and are communicated into the inner cavity of the bottom rod; the plurality of limiting blocks are respectively mounted in the mounting grooves; one side of each spring piece is fixedly mounted on the other side of the accommodating groove; wherein the inner sides of the multiple limiting blocks make contact with the other sides of the spring pieces, in daily production and life, the length of the bottom rod is adjusted by moving the connecting rod through arrangement of the internal threads, and the connecting rod is stabilized through the limiting blocks.

Description

Technical Field

[0001] The utility model relates to a rod end joint bearing. Background Art

[0002] The rod end joint bearing mainly includes: rod end housing, self-lubricating cushion layer, and perforated ball. Because the contact surface between the perforated ball and the rod end housing is too small and a self-lubricating cushion layer is added in the middle, there will be a gap for a period of time under fast operation and the life is too short.

[0003] There are existing spherical bearings with long clearance life, such as patent number

[0004] A high-speed rod-end joint bearing disclosed by CN217582881U comprises a bottom rod and an end head, a fish-eye hole structure is provided in the middle of the end head, an inner ring is movably arranged in the fish-eye hole structure, a lubrication structure is provided at the top of the inner ring, a rotating ball is provided at the bottom of the inner ring, the lubrication structure comprises an oil bin, an oil seepage plate, a spring, a pressing piece and a rotating ball, the oil bin is arranged in the end head, the oil seepage plate, the spring and the pressing piece are all arranged in the oil bin, the spring is fixed between the oil seepage plate and the pressing piece, the bottom end of the rotating ball penetrates the bottom side wall of the oil bin and contacts with the inner ring, so as to provide lubrication effect for the rotation of the inner ring, and when not in use, the rotating ball will be affected by the outward elastic force of the spring, and the missing groove at the bottom of the oil bin will be blocked to prevent the oil from seeping down.

[0005] This embodiment has the effect of automatic oil injection and lubrication, improves the rotation effect of the inner ring, reduces the friction damping with the fisheye hole, and prolongs the service life, but it has the following defects:

[0006] 1. The length of the rod end is fixed and cannot be adjusted, so the scope of use is limited;

[0007] 2. The inner ring can generally only be removed by heating and knocking, and it is not easy to replace the inner ring after it is worn. Summary of the invention

[0008] The utility model aims to solve one of the technical problems existing in the prior art.

[0009] The present application provides an internally threaded rod end joint bearing, comprising a bottom rod, an outer ring and an inner ring, and further comprising:

[0010] An internal thread, which is arranged on the inner cavity wall of the bottom rod;

[0011] A connecting rod, the end of which is connected to the internal thread by a thread;

[0012] The limiting component is arranged on the inner wall of the bottom rod.

[0013] The limiter components include:

[0014] A receiving groove is arranged in the wall cavity of the bottom rod;

[0015] A plurality of mounting grooves are evenly distributed on one side of the receiving groove and connected to the inner cavity of the bottom rod;

[0016] A plurality of limit blocks are respectively installed in each installation slot;

[0017] A plurality of spring sheets, one side of which is fixedly mounted on the other side of the receiving groove;

[0018] The inner sides of the plurality of limit blocks are in contact with the other side of each spring sheet.

[0019] The outer ring comprises a left shell and a right shell. The right shell is integrally arranged with the bottom rod. The left shell can be detachably mounted on the right shell.

[0020] Also includes:

[0021] A first connecting portion, which is arranged at the lower end of the left housing;

[0022] A pair of guide grooves, which are respectively arranged at the bottom of the first connecting portion;

[0023] A connecting column, which is arranged on the mounting surface of the first connecting portion;

[0024] A positioning hole is arranged at a side end of the first connecting portion.

[0025] Also includes:

[0026] A second connecting portion, which is arranged at the lower end of the right housing;

[0027] A pair of guide blocks, which are respectively arranged on the sliding surface of the second connecting portion and can be installed in each guide groove;

[0028] A connecting groove, which is provided on the mounting surface of the second connecting portion and is used for mounting a connecting column;

[0029] Among them, the side ends of a pair of guide blocks are also provided with positioning holes, and the left shell body cooperates with the right shell body, and the guide blocks correspond to the positions of the positioning holes on the first connecting part.

[0030] Also includes:

[0031] A sealing ring, which is mounted on the outer ring by fasteners;

[0032] a gasket mounted on the inner wall of the sealing ring;

[0033] Among them, the gasket seals the connection between the inner ring and the outer ring.

[0034] Also includes:

[0035] A dust-blocking felt fixedly connected to the inner end of the gasket;

[0036] The dust-blocking felt abuts against the outer surface of the inner ring.

[0037] The beneficial effects of the utility model are as follows:

[0038] 1. Through the setting of the internal thread, the length of the bottom rod can be adjusted by moving the connecting rod, and the connecting rod can be stabilized by the limit block;

[0039] 2. The left shell and the right shell are detachably connected, which is convenient for replacing the inner ring and improves the replacement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a schematic structural diagram of an internally threaded rod end spherical bearing in an embodiment of the present application;

[0041] Figure 2 Based Figure 1 A schematic diagram of the enlarged local structure at center A;

[0042] Figure 3 This is a front view of the left shell and the right shell when they are connected in the embodiment of the present application;

[0043] Figure 4 This is a front view of the spherical bearing when the left housing is removed in the embodiment of the present application;

[0044] Figure 5 This is a front view of the inner end of the left housing in the embodiment of the present application;

[0045] Figure 6 This is a front view of the inner end of the right shell in the embodiment of the present application;

[0046] Figure 7 Schematic diagram of the structure of the sealing ring in the embodiment of the present application.

[0047] Reference numerals

[0048] 1-bottom rod, 2-outer ring, 3-inner ring, 301-left shell, 302-right shell, 4-internal thread, 5-connecting rod, 6-limiting assembly, 7-accommodating groove, 8-installing groove, 9-limiting block, 10-spring sheet, 11-first connecting part, 12-guide groove, 13-connecting column, 14-positioning hole, 15-second connecting part, 16-guide block, 17-connecting groove, 18-sealing ring, 19-gasket, 20-dust-proof felt. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0050] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0051] The server provided in the embodiment of the present application is described in detail below through specific embodiments and application scenarios in conjunction with the accompanying drawings.

[0052] Embodiment 1:

[0053] like Figure 1 , Figure 2 As shown, an embodiment of the present application provides an internally threaded rod end joint bearing, including a base rod 1, an outer ring 2 and an inner ring 3, and also includes: an internal thread 4, which is arranged on the inner cavity wall of the base rod 1; a connecting rod 5, whose end is connected to the internal thread 4 through a thread; and a limit assembly 6, which is arranged on the inner wall of the base rod 1.

[0054] Furthermore, the limiting assembly 6 includes a receiving groove 7, which is arranged in the wall cavity of the bottom rod 1; a plurality of mounting grooves 8, which are evenly distributed on one side of the receiving groove 7 and connected to the inner cavity of the bottom rod 1; a plurality of limiting blocks 9, which are respectively installed in each mounting groove 8; and a plurality of spring sheets 10, one side of which is fixedly installed on the other side of the receiving groove 7; wherein the inner sides of the plurality of limiting blocks 9 are in contact with the other side of each spring sheet 10.

[0055] In this embodiment of the present application, due to the adoption of the above-mentioned structure, a connecting rod 5 is connected to the internal thread groove 4 of the bottom rod 1. When the length of the spherical bearing bottom rod 1 needs to be adjusted, the connecting rod 5 is rotated so that the head of the connecting rod 5 is threadedly connected to the internal thread 4. The connecting rod 5 is rotated so that the connecting rod 5 moves up and down in the inner cavity groove of the bottom rod 1. During the movement of the connecting rod 5, the connection of the connecting rod 5 is unstable and will become loose only through the threaded connection. A limiting component 6 is provided on the inner cavity groove wall of the bottom rod 1 to improve the stability when adjusting the length of the bottom rod 1. During the movement of the head of the connecting rod 5, the inner cavity wall of the bottom rod 1 is evenly spaced. There are multiple limit blocks 9 distributed. When the connecting rod 5 moves downward, the side of the head end of the connecting rod 5 will squeeze the limit block 9. At the same time, the limit block 9 slides inward along the installation groove 8, and the inner side of the limit block 9 squeezes the middle part of the spring sheet 10 to avoid the limit block 9 interfering with the connecting rod 5 during the movement of the connecting rod 5. When the limit block 9 is not squeezed, the elastic force of the spring sheet 10 itself will push the limit block 9 to move to its original position. When the head of the connecting rod 5 moves to contact with the limit block 9, the outer end of the limit block 9 can be clamped at the lower end of the head of the connecting rod 5, thereby achieving the function of buckling the connecting rod 5 and preventing the connecting rod 5 from loosening.

[0056] Embodiment 2:

[0057] like Figure 1 , Figure 3-6 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, the outer ring 2 also includes a left shell 301 and a right shell 302 , the right shell 302 is integrally arranged with the bottom rod 1 , and the left shell 301 can be detachably installed on the right shell 302 .

[0058] Furthermore, it also includes a first connecting part 11, which is arranged at the lower end of the left shell body 301; a pair of guide grooves 12, which are respectively arranged at the bottom of the first connecting part 11; a connecting column 13, which is arranged on the mounting surface of the first connecting part 11; and a positioning hole 14, which is arranged at the side end of the first connecting part 11.

[0059] Furthermore, it also includes a second connecting part 15, which is arranged at the lower end of the right shell 302; a pair of guide blocks 16, which are respectively arranged on the sliding surface of the second connecting part 15 and can be installed in each guide groove 12; a connecting groove 17, which is arranged on the installation surface of the second connecting part 15 and is used to install the connecting column 13; wherein, the side ends of the pair of guide blocks 16 are also provided with positioning holes 14, the left shell 301 and the right shell 302 cooperate, and the guide blocks 16 correspond to the positions of the positioning holes 14 on the first connecting part 11.

[0060] In this embodiment of the present application, due to the adoption of the above-mentioned structure, the inner ring 3 of the spherical bearing will wear out after long-term use. In order to facilitate the replacement of the inner ring 3, the outer ring 2 is configured to be detachable. The outer ring 2 consists of a left shell 301 and a right shell 302. When disassembling, first unscrew the fasteners (for example, screws, bolts, pins, etc.) fixed in the positioning holes 14 of the guide block 16 and the first connecting part 11, and then pull the left shell 301 outward. At the same time, the inner side fitting surfaces of the left shell 301 and the right shell 302 are separated, a pair of guide grooves 12 slide out along each guide block 16, and each link column disengages from the connecting groove 17, so that the left shell 301 is separated from the right shell 302 as a whole. When installing a new left shell 301, align each connecting column 13 on the left shell 301 with the corresponding connecting groove 17 on the right shell 302. A pair of guide grooves 12 can be connected to each guide block 16 respectively. Push the left shell 301 toward the right shell 302. When the left shell 301 and the right shell 302 are combined, each connecting column 13 is installed in the connecting groove 17, and the guide block 16 is also installed in the guide groove 12. At this time, the guide block 16 is aligned with the positioning hole 14 on the first connecting part 11, and then tightened into the positioning hole 14 with a fastener. The left shell 301 and the right shell 302 are detachably connected, which facilitates the replacement of the inner ring 3 and improves the replacement efficiency.

[0061] Embodiment 3:

[0062] like Figure 1 , Figure 7 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, it also includes: a sealing ring 18, which is installed on the outer ring 2 through fasteners; a gasket 19, which is installed on the inner wall of the sealing ring 18; wherein the gasket 19 seals the connection between the inner ring 3 and the outer ring 2.

[0063] Furthermore, it also includes a dust-blocking felt 20 which is fixedly connected to the inner end of the gasket 19 ; wherein the dust-blocking felt 20 abuts against the outer surface of the inner ring 3 .

[0064] In this embodiment of the present application, due to the adoption of the above structure, in order to prevent external dust from entering the gap between the outer ring 2 and the inner ring 3, sealing rings 18 are installed on both end faces of the outer ring 2 through fasteners. The sealing ring 18 covers the gap between the outer ring 2 and the inner ring 3. A gasket 19 is installed inside the sealing ring 18 through a snap-on rubber strip. A dust-blocking felt 20 is fixedly connected inside the gasket 19. The dust-blocking felt 20 abuts against the outer surface of the inner ring 3 to prevent dust from entering. Since the sealing ring 18 is installed through fasteners, the sealing ring 18 can be disassembled, so that the internal gasket 19 can be replaced to ensure the sealing performance of the gasket 19.

[0065] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes 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 one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0066] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. An internally threaded rod end joint bearing, comprising a bottom rod (1), an outer ring (2) and an inner ring (3), characterized in that: Also includes: An internal thread (4) arranged on the inner cavity wall of the bottom rod (1); A connecting rod (5), the end of which is connected to the internal thread (4) via a thread; A limiting component (6) is arranged on the inner wall of the bottom rod (1).

2. The internally threaded rod end joint bearing according to claim 1, characterized in that: The limiting component (6) comprises: A receiving groove (7) arranged in the wall cavity of the bottom rod (1); A plurality of mounting grooves (8) which are evenly distributed on one side of the receiving groove (7) and connected to the inner cavity of the bottom rod (1); A plurality of limit blocks (9), which are respectively installed in each of the installation grooves (8); A plurality of spring sheets (10), one side of which is fixedly mounted on the other side of the receiving groove (7); The inner sides of a plurality of the limit blocks (9) are in contact with the other side of each spring sheet (10).

3. The internally threaded rod end joint bearing according to claim 1, characterized in that: The outer ring (2) comprises a left shell (301) and a right shell (302); the right shell (302) and the bottom rod (1) are integrally arranged; the left shell (301) can be detachably mounted on the right shell (302).

4. The internally threaded rod end joint bearing according to claim 3, characterized in that: Also includes: A first connecting portion (11), which is arranged at the lower end of the left housing (301); A pair of guide grooves (12) respectively arranged at the bottom of the first connecting portion (11); A connecting column (13) arranged on a mounting surface of the first connecting portion (11); A positioning hole (14) is arranged at a side end of the first connecting portion (11).

5. The internally threaded rod end joint bearing according to claim 4, characterized in that: Also includes: A second connecting portion (15) disposed at the lower end of the right housing (302); A pair of guide blocks (16), which are respectively arranged on the sliding surface of the second connecting portion (15) and can be installed in each guide groove (12); A connecting groove (17), which is arranged on the mounting surface of the second connecting portion (15) and is used for mounting a connecting column (13); The side ends of a pair of guide blocks (16) are also provided with positioning holes (14), and the left shell (301) and the right shell (302) cooperate with each other, and the guide blocks (16) correspond to the positioning holes (14) on the first connecting part (11).

6. The internally threaded rod end joint bearing according to claim 1, characterized in that: Also includes: A sealing ring (18) mounted on the outer ring (2) via fasteners; A gasket (19) mounted on the inner wall of the sealing ring (18); The gasket (19) seals the connection between the inner ring (3) and the outer ring (2).

7. The internally threaded rod end joint bearing according to claim 6, characterized in that: Also includes: A dust-blocking felt (20) fixedly connected to the inner end of the gasket (19); Wherein, the dust-blocking felt (20) abuts against the outer surface of the inner ring (3).

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