A connecting sleeve with self-adjusting clearance

Abstract

The present invention provides a self-adjusting gap connecting sleeve, which relates to the technical field of sleeves, and comprises a sleeve outer ring part, on which a rotating adapter is installed; the rotating adapter is used for sleeve-connecting a pin shaft; the rotating adapter is installed with a one-way locking part; the one-way locking part is used for one-way locking the rotating adapter and the sleeve outer ring part; eight rows of graphite lubricating parts are installed inside the rotating adapter, and the eight rows of graphite lubricating parts are used for elastically fitting the pin shaft, and the gap torsion spring adaptive part, by utilizing the self-locking property of the thread and cooperating with the torsion spring to apply a rotational force, can automatically maintain the distance between the pin seats of the excavator boom and the arm, reduce wear, and also increase the overall service life, thereby solving the problem that the current connecting sleeve is not convenient for automatic fitting and gap adaptation, and long-term use is prone to cause friction and collision of the pin seats between the boom and the arm.

Description

Technical Field

[0001] The invention relates to the technical field of shaft sleeves, and in particular to a connecting shaft sleeve with self-adjusting clearance. Background Art

[0002] The sleeve is also called a bushing. It is widely used in excavators, industrial machinery and other fields. For example, in the parts of the excavator, the connection between the boom and the forearm requires a pin to connect the pin seat. If the pin is directly used for plugging, it will cause irreversible wear to the pin seat. By setting the sleeve, the wear can be caused on the sleeve, and the sleeve can be replaced later. At present, copper alloy self-lubricating sleeves are usually used for installation. The self-lubricating sleeve is embedded with graphite lubricating material to reduce wear, but the wear resistance of both ends of the current sleeve is limited, which is not convenient for automatic fitting and gap adaptation compensation. Long-term use can easily cause friction and collision of the pin seat between the boom and the forearm. The graphite lubricating material of the sleeve needs to be worn together when the sleeve is worn to achieve the purpose of lubrication. However, the amount of graphite lubricating material is limited, resulting in limited powder generated by friction, poor lubrication effect, and inconvenient automatic lubrication. At the same time, the sleeve has a large internal clearance after long-term use, which affects the stability of the pin when rotating. Summary of the invention

[0003] The disclosed embodiment relates to a self-adjusting clearance connecting sleeve, whose clearance torsion spring adaptive part utilizes the self-locking property of the thread and cooperates with the torsion spring to apply rotational force, so as to automatically maintain the pin seat spacing between the boom and the arm of the excavator, reduce wear, and increase the overall service life, thereby solving the problem that the current connecting sleeve is not convenient for automatic fitting to the clearance, and long-term use is prone to cause friction and collision of the pin seats between the boom and the arm.

[0004] In a first aspect of the present disclosure, a self-adjusting clearance connecting sleeve is provided, comprising a sleeve outer ring member, on which a rotating adapter is mounted; the rotating adapter is used to sleeve a pin shaft; the rotating adapter is mounted with a one-way locking member; the one-way locking member is used to one-way lock the rotating adapter and the sleeve outer ring member; eight rows of graphite lubricating members are mounted inside the rotating adapter member, and the eight rows of graphite lubricating members are used to elastically fit the pin shaft; a clearance torsion spring adaptive member is mounted on the rotating adapter member, and the clearance torsion spring adaptive member is used to adaptively adjust the telescopic movement; the sleeve outer ring member comprises: an outer ring and an extruded bevel protrusion, eight extruded bevel protrusions are fixedly mounted inside the outer ring, the eight extruded bevel protrusions are spaced at the same intervals, and the inner sides of the eight extruded bevel protrusions are all bevel structures.

[0005] In at least some embodiments, the graphite lubricating part includes: an advancing piston column, a limiting column and a lubricating spring, wherein the advancing piston column is slidably sleeved in the lubricating sliding hole; the limiting column is fixedly installed on the advancing piston column; a lubricating spring is sleeved in the lubricating sliding hole, and the end of the lubricating spring is connected to the inner side of the lubricating sliding hole, and the other end of the lubricating spring is connected to the inner side of the advancing piston column; and a groove is provided on the advancing piston column.

[0006] In at least some embodiments, the sleeve outer ring further comprises: locking ratchet teeth, and a circle of locking ratchet teeth is formed at the end of the outer ring.

[0007] In at least some embodiments, the rotating adapter includes: an inner sleeve, a gap adjustment threaded hole, a decagonal limit plate, an inner shrinkage plate and a rubber strip, wherein the inner sleeve is sleeved inside the outer ring; gap adjustment threaded holes are respectively provided at both ends of the inner sleeve; a decagonal limit plate is fixedly mounted on the end of the inner sleeve, and the decagonal limit plate is a regular decagonal structure; a hexagonal block for docking a wrench is provided at the other end of the inner sleeve; eight inner shrinkage plates are fixedly mounted inside the inner sleeve, and the outer sides of the eight inner shrinkage plates are respectively inclined structures; the outer sides of the eight inner shrinkage plates correspond to eight extrusion inclined surface protrusions respectively; the extrusion inclined surface protrusions are used to extrude the inner shrinkage plates to deform inwardly; "V"-shaped grooves are respectively provided on the inner sides of the eight inner shrinkage plates; rubber strips are respectively embedded in the "V"-shaped grooves on the inner sides of the eight inner shrinkage plates.

[0008] In at least some embodiments, the one-way locking member includes: a locking ring and a thrust spring, the inner side of the locking ring is a regular decagonal hole structure; the locking ring is slidably sleeved on the decagonal limit plate; a thorn-shaped groove is provided on the side of the locking ring; the thorn-shaped groove on the side of the locking ring is used to insert the locking thorn-shaped teeth; the inner side of the locking ring is sleeved with a thrust spring, and the thrust spring is located between the bolt connection ring and the locking ring.

[0009] In at least some embodiments, the rotating adapter also includes: a bolt connection ring, a lubricating sliding hole, a connecting pipe and a dust plug, the bolt connection ring is fixedly installed at the end of the decagonal limit plate; a circle of threaded holes is opened on the bolt connection ring; eight rows of lubricating sliding holes are opened inside the inner sleeve, and the eight rows are respectively located at the intervals of eight inner shrinkage plates; a connecting pipe is fixedly installed on the outside of the inner sleeve; the eight rows of lubricating sliding holes are connected to the connecting pipe; each row of lubricating sliding holes is connected; the connecting pipe is used to suck air into the eight rows of lubricating sliding holes; a dust plug is connected to the inner thread of the connecting pipe, and the dust plug is used to seal the connecting pipe; the connecting pipe is used to connect to an external vacuum pump.

[0010] In at least some embodiments, the one-way locking member further includes: an anti-slip bolt, wherein the anti-slip bolt is provided with a circle, and the circle of anti-slip bolts are respectively threadedly connected to the bolt connecting circle; the circle of anti-slip bolts are spaced at the same intervals, and the ends of the circle of anti-slip bolts are respectively squeezed and fitted into the locking ring.

[0011] In at least some embodiments, the graphite lubricating part further includes: a graphite lubricating column, which is inserted into the thrust piston column; the graphite lubricating column is located in the lubricating sliding hole; and the graphite lubricating column is used for elastic friction pin shaft.

[0012] In at least some embodiments, the gap torsion spring adaptive component further includes: a torsion spring, wherein the torsion spring is located inside the gap adjustment threaded hole; the two ends of the torsion spring are respectively fixedly plugged into two torsion spring positioning blocks; and the torsion spring is used to torsionally drive the adaptive threaded barrel to rotate outward.

[0013] In at least some embodiments, the gap torsion spring adaptive component includes: an adaptive threaded barrel and a torsion spring positioning block, wherein the adaptive threaded barrel is threadedly connected in the gap adjustment threaded hole; two torsion spring positioning blocks are provided, and the two torsion spring positioning blocks are respectively fixedly mounted on the adaptive threaded barrel and the inner side of the gap adjustment threaded hole; the adaptive threaded barrel is used to reduce the wear of the pin seat.

[0014] The present invention provides a self-adjusting clearance connecting sleeve, which has the following beneficial effects:

[0015] The present invention adopts a graphite lubricating part, which can actively promote the graphite lubricating column to elastically fit the pin shaft to perform the friction of graphite powder, increase the amount of graphite powder outside the pin shaft, reduce waste, and improve the self-lubricating effect. When the connected lubricating sliding holes and connecting pipes are subjected to negative pressure suction, it is convenient for workers to install the pin shaft and avoid the graphite lubricating column protruding from being squeezed by the lubricating spring to block the insertion of the pin shaft.

[0016] In addition, the use of an inner shrinkage plate can be squeezed inward by the extruded inclined surface protrusion to achieve a shrunk diameter, which is more suitable for gap adaptation adjustment after wear, and can improve the stability of the pin shaft rotation. At the same time, the structure is simple and convenient to adjust, and the service life is increased. The one-way locking part can perform real-time locking control when the rotating wrench rotates the inner sleeve for adjustment, thereby ensuring the stability of the inner shrinkage plate after adjustment.

[0017] In addition, by using a gap torsion spring adaptive part, the torsion spring can be used to rotate and drive the adaptive threaded barrel to expand outward. At the same time, the threaded connection is self-locking and will not shrink due to squeezing. It is more suitable for use in swing arm mechanical structures. When installed on the excavator's boom and arm, it can avoid collision and friction between the pin seats of the boom and arm, and automatically compensate for wear through the adaptive threaded barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0019] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0020] In the attached picture:

[0021] Figure 1 A schematic diagram showing the overall structure of the present application;

[0022] Figure 2 An overall partial cross-sectional view of the present application is shown;

[0023] Figure 3 A cross-sectional view showing the internal overall structure of the present application;

[0024] Figure 4 A cross-sectional view showing the rotation adapter structure of the present application;

[0025] Figure 5 A schematic diagram showing the structure of the shaft sleeve outer ring member of the present application is shown;

[0026] Figure 6 A schematic diagram showing the outer side structure of the rotary adapter of the present application is shown;

[0027] Figure 7 This application shows Figure 3 A magnified view of the structure of the middle C region;

[0028] Figure 8 This application shows Figure 2 A magnified view of the structure of the middle D region;

[0029] Fig. 9 A schematic diagram showing the one-way locking member structure of the present application is shown;

[0030] Fig.10 This application shows Figure 2 A magnified view of the structure of the middle E region;

[0031] Fig.11 A schematic diagram showing the overall structure of the gap torsion spring adaptive member of the present application is shown;

[0032] Fig.12 A schematic diagram of the position of the gap adjustment threaded hole of the present application is shown.

[0033] List of reference numerals:

[0034] 1. Outer ring of shaft sleeve; 101. Outer ring; 102. Extrusion inclined surface protrusion; 103. Locking ratchet tooth; 2. Rotary adapter; 201. Inner shaft sleeve; 2011. Gap adjustment threaded hole; 2012. Decagonal limit plate; 2013. Lubrication sliding hole; 202. Inner shrinkage plate; 2021. Rubber strip; 203. Bolt connection ring; 204. Connecting pipe; 205. Dust plug; 3. One-way locking part; 301. Locking ring; 302. Propulsion spring; 303. Anti-slip bolt; 4. Graphite lubricating part; 401. Propulsion piston column; 402. Limit column; 403. Lubricating spring; 404. Graphite lubricating column; 5. Gap torsion spring adaptive part; 501. Adaptive threaded cylinder; 502. Torsion spring positioning block; 503. Torsion spring. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Example 1: Please refer to Figures 1 to 12 :

[0037] The present invention proposes a self-adjusting clearance connecting sleeve, comprising a sleeve outer ring member 1, on which a rotating adapter 2 is installed; the rotating adapter 2 is used for sleeve-connecting a pin shaft; a one-way locking member 3 is installed on the rotating adapter 2; the one-way locking member 3 is used for one-way locking the rotating adapter 2 and the sleeve outer ring member 1; eight rows of graphite lubricating members 4 are installed inside the rotating adapter 2, and the eight rows of graphite lubricating members 4 are used for elastically fitting the pin shaft; a clearance torsion spring adaptive member 5 is installed on the rotating adapter 2, and the clearance torsion spring adaptive member 5 is used for adaptively adjusting the telescopic movement; the sleeve outer ring member 1 comprises: an outer ring 101 and an extruded bevel protrusion 102, eight extruded bevel protrusions 102 are fixedly installed inside the outer ring 101, the eight extruded bevel protrusions 102 are spaced at the same intervals, and the inner sides of the eight extruded bevel protrusions 102 are all bevel structures.

[0038] In the disclosed embodiment, the sleeve outer ring member 1 further includes: locking ratchet teeth 103, and a circle of locking ratchet teeth 103 is provided at the end of the outer ring 101; the rotary adapter 2 includes: an inner sleeve 201, a gap adjustment threaded hole 2011, a decagonal limiting disk 2012, an inner shrinkage sheet 202 and a rubber strip 2021, and the inner sleeve 201 is sleeved inside the outer ring 101; the inner sleeve 201 has gap adjustment threaded holes 2011 at both ends; a decagonal limiting disk 2012 is fixedly installed at the end of the inner sleeve 201, and the decagonal limiting disk 2012 is a regular decagonal structure; the other end of the inner sleeve 201 A hexagonal block for docking a wrench is provided; eight inner shrinkage pieces 202 are fixedly installed inside the inner sleeve 201, and the outer sides of the eight inner shrinkage pieces 202 are inclined structures respectively; the outer sides of the eight inner shrinkage pieces 202 are respectively fitted with eight extrusion inclined surface protrusions 102; the extrusion inclined surface protrusions 102 are used to squeeze the inner shrinkage pieces 202 to deform inwardly; the inner sides of the eight inner shrinkage pieces 202 are respectively provided with "V"-shaped grooves; rubber strips 2021 are respectively embedded in the "V"-shaped grooves on the inner sides of the eight inner shrinkage pieces 202; the rotary adapter 2 also includes: a bolt connection ring 203, a lubrication sliding hole 2013, a connecting pipe 204 and a dust plug 205, a bolt connection ring 203 is fixedly installed at the end of the decagonal limit plate 2012; a circle of threaded holes is provided on the bolt connection ring 203; eight rows of lubricating sliding holes 2013 are provided inside the inner sleeve 201, and the eight rows are respectively located at the intervals of the eight inner shrinkage sheets 202; a connecting pipe 204 is fixedly installed on the outer side of the inner sleeve 201; the eight rows of lubricating sliding holes 2013 are connected to the connecting pipe 204; each row of lubricating sliding holes 2013 is connected; the connecting pipe 204 is used to suck air into the eight rows of lubricating sliding holes 2013; a dust plug 205 is connected to the inner thread of the connecting pipe 204, and the dust plug 205 is used to To seal the connecting pipe 204; the connecting pipe 204 is used for an external vacuum pump, and adopts an inner shrinkage piece 202, which can be squeezed inward by the extruded inclined protrusion 102 to achieve a shrunk diameter, and is more suitable for gap adaptation and adjustment after wear, and can improve the stability of the pin shaft rotation. At the same time, the structure is simple and convenient to adjust, and the use cycle is increased, and the service life is improved. The rubber strip 2021 can be elastically fitted on the surface of the pin shaft, which can play the role of applying graphite lubricating material. The inner sides of the eight inner shrinkage pieces 202 are respectively provided with "V"-shaped grooves, which can facilitate simultaneous inward adjustment to prevent the pin shaft from having excessive radial gaps.

[0039] In the embodiment of the present disclosure, the one-way locking member 3 includes: a locking ring 301 and a push spring 302, the inner side of the locking ring 301 is a regular decagonal hole structure; the locking ring 301 is slidably sleeved on the decagonal limit plate 2012; a thorn groove is provided on the side of the locking ring 301; the thorn groove on the side of the locking ring 301 is used to insert the locking thorn tooth 103; the inner side of the locking ring 301 is sleeved with a push spring 302, and the push spring 302 is located between the bolt connection ring 203 and the locking ring 301; the one-way locking member 3 also includes: an anti-slip bolt 303, the anti-slip bolt 303 is provided with a circle , a circle of anti-slip bolts 303 are respectively threadedly connected to the bolt connection ring 203; a circle of anti-slip bolts 303 are at the same intervals, and the ends of a circle of anti-slip bolts 303 are respectively pressed and fitted with the locking ring 301. The one-way locking piece 3 is adopted, and real-time locking control can be performed when the inner sleeve 201 is rotated by a rotating wrench for adjustment, thereby ensuring the stability of the adjusted inner shrinkage piece 202. The structure has stable limit and better anti-slip effect. At the same time, the structure is compact, which ensures the flexibility of the sleeve assembly. Under the extrusion of the propulsion spring 302, the thorn groove on the side of the locking ring 301 is elastically plugged into the locking thorn tooth 103 in real time.

[0040] In the disclosed embodiment, the graphite lubricating part 4 includes: a propulsion piston column 401, a limit column 402 and a lubricating spring 403. The propulsion piston column 401 is slidably sleeved in the lubricating sliding hole 2013; the limit column 402 is fixedly installed on the propulsion piston column 401; the lubricating sliding hole 2013 is sleeved with a lubricating spring 403, and the end of the lubricating spring 403 is connected to the inner side of the lubricating sliding hole 2013, and the other end of the lubricating spring 403 is connected to the inner side of the propulsion piston column 401; a groove is provided on the propulsion piston column 401; the graphite lubricating part 4 also includes: a graphite lubricating column 404, which is inserted into the propulsion piston column 401; the graphite lubricating column 404 is located in the lubricating sliding hole 2013; the graphite lubricating column 404 is used for elastic friction pin shaft, and the graphite lubricating part 4 is used to actively propel the graphite lubricating part. The graphite lubrication column 404 elastically fits the pin to rub the graphite powder, increasing the amount of graphite powder on the outside of the pin, avoiding the traditional graphite lubrication column 404 integrated with the sleeve, because the sleeve has strong wear resistance, the pin can only rub the graphite lubrication column 404 as the sleeve is worn. When the sleeve is disassembled due to severe wear, there is still a problem that the longer graphite lubrication column 404 is not fully used, which can reduce waste and improve the self-lubricating effect. In conjunction with the connected lubrication sliding hole 2013 and the connecting pipe 204, this structure can facilitate the staff to use the suction negative pressure to shrink the graphite lubrication column 404 and then install the pin, avoiding the graphite lubrication column 404 that is squeezed out by the lubrication spring 403 to block the insertion of the pin. When plugging the pin, rotate and remove the dust plug 205, connect the connecting pipe 204 to the vacuum suction pump, and perform negative pressure suction.

[0041] Embodiment 2, on the basis of embodiment 1, the gap torsion spring adaptive member 5 comprises: an adaptive threaded barrel 501 and a torsion spring positioning block 502, the adaptive threaded barrel 501 is threadedly connected in the gap adjustment threaded hole 2011; there are two torsion spring positioning blocks 502, and the two torsion spring positioning blocks 502 are respectively fixedly mounted on the adaptive threaded barrel 501 and the inner side of the gap adjustment threaded hole 2011; the adaptive threaded barrel 501 is used to reduce the wear of the pin seat; the gap torsion spring adaptive member 5 also comprises: a torsion spring 503, the torsion spring 503 is located inside the gap adjustment threaded hole 2011; the two ends of the torsion spring 503 are respectively fixedly plugged into the two torsion spring positioning blocks 502; The torsion spring 503 is used to twist and drive the adaptive threaded barrel 501 to rotate outward. The gap torsion spring adaptive part 5 is adopted. The torsion spring 503 can be used to rotate and drive the adaptive threaded barrel 501 to expand outward. At the same time, the threaded connection is used, which has self-locking properties and will not shrink due to squeezing. This structure is more suitable for use in swing arm mechanical structures. When installed on the boom and arm of the excavator, the pin seats of the boom and arm can be prevented from impacting and rubbing each other. The adaptive threaded barrel 501 can be used to compensate for wear. When the adaptive threaded barrel 501 is worn, it can be driven by the torsion spring 503 to compensate. The structure is simple and reasonable, and the rotation accuracy of the boom and arm is improved.

[0042] Working principle of this embodiment: First, when the excavator boom and the forearm are connected, the number of this structure is set according to the number of pin seats. For example, the excavator boom and the forearm need three outer rings 101 to be respectively sleeved in the pin seat of the boom and the two pin seats of the forearm. At this time, the boom and the forearm are aligned, and the pin shaft is inserted into the inner sleeve 201. When the pin shaft is plugged in, the dust plug 205 is rotated to remove, and the connecting pipe 204 is connected to the vacuum suction pump for negative pressure suction. At this time, it is affected by the air pressure. The eight rows of propulsion piston rods 401 are sucked outward, driving the graphite lubricating rods 404 to shrink to the inside of the inner sleeve 201. At this time, the pin can be inserted, and then the vacuum pump connected to the connecting pipe 204 is removed. Under the pressure of the lubricating spring 403, the propulsion piston rods 401 are pushed inward to make the graphite lubricating rods 404 elastically fit the pin. When the pin and the inner shrinkage sheet 202 are worn, the inner sleeve 201 end is rotated by a wrench. A hexagonal block for docking the wrench is provided. At this time, The inner sleeve 201 is driven to rotate, and the inner shrinkage piece 202 will be squeezed by the extrusion inclined protrusion 102. The "V"-shaped groove of the inner shrinkage piece 202 is thinner and will be slightly bent inward. At this time, the inner shrinkage piece 202 will fit the pin shaft. The staff can adjust the degree of shrinkage of the inner shrinkage piece 202 according to the needs. The rubber strip 221 also plays the role of cushioning and supporting the "V"-shaped groove; the locking ring 301 sliding on the decagonal limit plate 2012 will not rotate. When the inner sleeve 201 is rotated, as the inner shrinkage sheet 202 is squeezed and retracted inward, the locking ring 301 will also slide on the locking ratchet teeth 103. By using the one-way limit principle of the ratchet, the ratchet groove on the side of the locking ring 301 is elastically inserted into the locking ratchet teeth 103 in real time under the pressure of the propulsion spring 302. After the adjustment of the inner sleeve 201 is completed, the anti-dropping bolt 303 is tightened one circle to squeeze the locking ring 301 tightly into the locking ratchet teeth 103 for limiting.

[0043] The three outer rings 101 are respectively sleeved in the pin seat of the boom and the two pin seats of the arm. At this time, the adjacent adaptive threaded cylinders 501 fit together, and the torsion spring 503 is in a twisted state, and there is torque. As the adjacent adaptive threaded cylinders 501 fit and wear, under the torsion drive of the torsion spring 503, the adaptive threaded cylinder 501 will rotate outward to maintain a fitting gap. When axial force is generated in the pin seats of the boom and the arm, and the adjacent adaptive threaded cylinders 501 are axially squeezed, the adaptive threaded cylinder 501 threadedly connected to the gap adjustment threaded hole 2011 uses the self-locking property of the thread axially to maintain stability, thereby ensuring that the pin seats of the boom and the arm of the excavator are not worn or collided.

[0044] In this article, there are a few points to note:

[0045] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0046] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0047] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A self-adjusting clearance connecting sleeve, comprising a sleeve outer ring member (1), on which a rotating adapter member (2) is mounted; characterized in that: The rotary adapter (2) is used for sleeve connection with the pin shaft; a one-way locking member (3) is installed on the rotary adapter (2); the one-way locking member (3) is used for one-way locking of the rotary adapter (2) and the shaft sleeve outer ring member (1); Eight rows of graphite lubricating parts (4) are installed inside the rotating adapter (2), and the eight rows of graphite lubricating parts (4) are used to elastically fit the pin shaft; The rotation adapter (2) is provided with a gap torsion spring adaptive component (5), and the gap torsion spring adaptive component (5) is used for adaptively adjusting the expansion and contraction; The shaft sleeve outer ring member (1) comprises: an outer ring (101) and an extruded inclined surface protrusion (102); eight extruded inclined surface protrusions (102) are fixedly installed inside the outer ring (101); the eight extruded inclined surface protrusions (102) are spaced at the same intervals; and the inner sides of the eight extruded inclined surface protrusions (102) are all inclined surface structures; The shaft sleeve outer ring member (1) further comprises: locking ratchet teeth (103), wherein a circle of locking ratchet teeth (103) is formed at the end of the outer ring (101); The rotary adapter (2) comprises: an inner sleeve (201), a gap adjustment threaded hole (2011), a decagonal limiting disk (2012), an inner shrinkage sheet (202) and a rubber strip (2021), wherein the inner sleeve (201) is sleeved inside the outer ring (101); gap adjustment threaded holes (2011) are respectively provided at both ends of the inner sleeve (201); a decagonal limiting disk (2012) is fixedly mounted on the end of the inner sleeve (201), and the decagonal limiting disk (2012) is a regular decagonal structure; and a hexagonal block for connecting a wrench is provided at the other end of the inner sleeve (201). ; Eight inner shrinkage pieces (202) are fixedly installed inside the inner sleeve (201), and the outer sides of the eight inner shrinkage pieces (202) are inclined structures; the outer sides of the eight inner shrinkage pieces (202) are respectively corresponding to eight extrusion inclined surface protrusions (102); the extrusion inclined surface protrusions (102) are used to extrude the inner shrinkage pieces (202) to deform inwardly; the inner sides of the eight inner shrinkage pieces (202) are respectively provided with "V"-shaped grooves; rubber strips (2021) are respectively embedded in the "V"-shaped grooves on the inner sides of the eight inner shrinkage pieces (202); the inner shrinkage pieces (202) are used to be extruded and shrunk inward by the extrusion inclined surface protrusions (102); The rotating adapter (2) further comprises: a bolt connection ring (203), a lubricating sliding hole (2013), a connecting pipe (204) and a dust plug (205); the bolt connection ring (203) is fixedly mounted on the end of the decagonal limiting plate (2012); a circle of threaded holes is provided on the bolt connection ring (203); eight rows of lubricating sliding holes (2013) are provided inside the inner sleeve (201), and the eight rows are respectively located at intervals between eight inner shrinkage plates (202); A connecting pipe (204) is fixedly installed on the outer side of the shaft sleeve (201); the eight rows of lubricating sliding holes (2013) are connected to the connecting pipe (204); each row of lubricating sliding holes (2013) is connected to each other; the connecting pipe (204) is used to suck air from the eight rows of lubricating sliding holes (2013); a dust plug (205) is connected to the inner thread of the connecting pipe (204), and the dust plug (205) is used to seal the connecting pipe (204); the connecting pipe (204) is used to be externally connected to a vacuum pump.

2. The self-adjusting clearance connecting sleeve according to claim 1, characterized in that: The one-way locking member (3) comprises: a locking ring (301) and a propulsion spring (302); the inner side of the locking ring (301) is a regular decagonal hole structure; the locking ring (301) is slidably sleeved on the decagonal limit plate (2012); a thorn-shaped groove is provided on the side of the locking ring (301); the thorn-shaped groove on the side of the locking ring (301) is used for inserting the locking thorn-shaped teeth (103); the inner side of the locking ring (301) is sleeved with a propulsion spring (302), and the propulsion spring (302) is located between the bolt connection ring (203) and the locking ring (301).

3. The self-adjusting clearance connecting sleeve according to claim 2, characterized in that: The one-way locking member (3) further comprises: an anti-slip bolt (303), wherein the anti-slip bolt (303) is provided with a circle, wherein the circle of anti-slip bolts (303) are respectively threadedly connected to the bolt connection ring (203); the circle of anti-slip bolts (303) are spaced at the same interval, and the ends of the circle of anti-slip bolts (303) are respectively pressed and fitted to the locking ring (301).

4. The self-adjusting clearance connecting sleeve according to claim 1, characterized in that: The graphite lubricating component (4) comprises: a propulsion piston column (401), a limiting column (402) and a lubricating spring (403); the propulsion piston column (401) is slidably sleeved in the lubricating sliding hole (2013); the limiting column (402) is fixedly installed on the propulsion piston column (401); the lubricating sliding hole (2013) is sleeved with a lubricating spring (403), and the end of the lubricating spring (403) is connected to the inner side of the lubricating sliding hole (2013), and the other end of the lubricating spring (403) is connected to the inner side of the propulsion piston column (401); and a groove is provided on the propulsion piston column (401).

5. The self-adjusting clearance connecting sleeve according to claim 4, characterized in that: The graphite lubricating part (4) further comprises: a graphite lubricating column (404), wherein the graphite lubricating column (404) is inserted into the thrust piston column (401); the graphite lubricating column (404) is located in the lubricating sliding hole (2013); and the graphite lubricating column (404) is used for elastic friction pin shaft.

6. The self-adjusting clearance connecting sleeve according to claim 1, characterized in that: The gap torsion spring adaptive component (5) comprises: an adaptive threaded barrel (501) and a torsion spring positioning block (502); the adaptive threaded barrel (501) is threadedly connected in a gap adjustment threaded hole (2011); two torsion spring positioning blocks (502) are provided, and the two torsion spring positioning blocks (502) are respectively fixedly mounted on the adaptive threaded barrel (501) and the inner side of the gap adjustment threaded hole (2011); the adaptive threaded barrel (501) is used to reduce the wear of the pin seat.

7. The self-adjusting clearance connecting sleeve according to claim 6, characterized in that: The gap torsion spring adaptive component (5) further comprises: a torsion spring (503), wherein the torsion spring (503) is located inside the gap adjustment threaded hole (2011); the two ends of the torsion spring (503) are respectively fixedly plugged into two torsion spring positioning blocks (502); and the torsion spring (503) is used to torsionally drive the adaptive threaded barrel (501) to rotate outward.

Images