Swinging hinge point structure with high lubricity

Abstract

The utility model discloses a swing hinge point structure with strong lubricity, which relates to the technical field of swing hinge point structures, and comprises a shaft sleeve, two ends of the shaft sleeve are provided with butt joint grooves, the inner sides of the butt joint grooves are provided with first sealing rings, two ends of the shaft sleeve are connected with conical rings, one side of each conical ring is provided with two sealing rings, and the other side of each conical ring is provided with a second sealing ring. Two rotating shafts are arranged on the inner side of the shaft sleeve and connected through bolts, a swing frame is connected between one ends of the two rotating shafts, a mounting groove is formed in the shaft sleeve, an inner cavity of the mounting groove is filled with an oil absorption pad, an oil guide groove is formed in the shaft sleeve, and a through hole is formed in the inner side of the oil guide groove. According to the high-lubricity swing hinge point structure, the structural design is reasonable, the friction force generated when the rotating shaft rotates in the shaft sleeve can be effectively reduced, and the assembling gap between the shaft sleeve and the rotating shaft can be effectively sealed.

Description

Technical Field

[0001] This utility model relates to the field of swing hinge structure technology, specifically a highly lubricated swing hinge structure. Background Technology

[0002] The oscillating hinge structure is a common movable connection structure in mechanical systems. It mainly consists of a hinge shaft, a hinge seat, and related connecting parts. The relative oscillating motion between components is achieved by the rotation of the hinge shaft within the hinge seat. Its core feature is that it allows the two connected components to oscillate back and forth around the center of the hinge shaft within a certain angle range, while simultaneously transmitting force and torque, thus combining the flexibility of the connection with the stability of the structure.

[0003] In the field of construction machinery, such as crane boom systems, the swing hinge structure allows the boom to flexibly adjust its amplitude around the hinge point, adapting to different working heights and distances. In vehicle suspension systems, it coordinates the relative movement of the wheels and the chassis, mitigating road impacts. The design must comprehensively consider factors such as load-bearing capacity, swing angle range, wear resistance, and ease of installation and maintenance. The fitting accuracy of the hinge shaft and hinge seat, as well as the material selection, directly affect the service life and reliability of the structure. For example, using high-strength alloy steel to manufacture the hinge shaft and surface hardening to improve wear resistance ensures long-term stable operation of the structure under heavy loads.

[0004] With its simple and efficient motion transmission characteristics, the swing hinge structure has become a key component for realizing dynamic connections between mechanical components. It is widely used in aerospace, automotive, construction machinery and other fields, providing basic support for the motion realization of complex mechanical systems.

[0005] In existing swing hinge structures, the bushing and the shaft are usually designed with direct frictional contact, which makes the shaft prone to frictional wear during long-term reciprocating motion, affecting the service life of the components. Secondly, the assembly gap between the bushing and the shaft will form an open channel, allowing external dust, particles and other impurities to easily enter the friction pair, which will not only aggravate wear, but may also cause problems such as motion jamming. Therefore, a new technical solution needs to be designed to solve this problem. Utility Model Content

[0006] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a highly lubricated swing hinge structure, comprising a bushing, both ends of which are provided with mating grooves, and a first sealing ring is provided on the inner side of the mating grooves. Both ends of the bushing are connected to a conical ring, and two sealing rings are provided on one side of the conical ring. Two rotating shafts are provided on the inner side of the bushing, and the two rotating shafts are connected by bolts. A swing frame is connected between one end of the two rotating shafts. Through the lubrication mechanism, the friction generated by the rotating shafts rotating inside the bushing can be effectively reduced, making the rotating shafts rotate more smoothly and reducing the wear generated by the rotating shafts rotating inside the bushing, thereby improving the service life of the rotating shafts. Through the sealing mechanism, the assembly gap between the bushing and the rotating shafts can be effectively sealed to prevent external dust, particles and other impurities from entering the interior of the bushing, thereby reducing the wear of the rotating shafts.

[0008] Preferably, the bushing has an internal mounting groove for mounting an oil-absorbing pad, which absorbs lubricating oil and lubricates the roller.

[0009] Preferably, the inner cavity of the mounting groove is filled with an oil-absorbing pad, and the inside of the bushing is provided with an oil guide groove to guide the lubricating oil.

[0010] Preferably, the inner side of the oil guide groove is provided with through holes, and the through holes are evenly distributed. The through holes are connected to the mounting groove. The lubricating oil in the oil guide groove is guided to the mounting groove through the through holes, so that the lubricating oil comes into contact with the oil-absorbing pad, so that the oil-absorbing pad absorbs the lubricating oil and lubricates the roller.

[0011] Preferably, an oil injection pipe is provided on the outer side of the bushing, and the oil injection pipe is connected to the oil guide groove. A rotating roller is provided on the inner side of the bushing, and the rotating rollers are evenly distributed. The outer side of the rotating roller is in contact with the two rotating shafts. The friction force of the rotating shaft is reduced by the contact between the rotating roller and the rotating shaft.

[0012] Preferably, a sealing sleeve is provided on the outer side of both rotating shafts, and two second sealing rings are provided on one side of the sealing sleeve. The second sealing rings extend to the inner side of the mating groove, and the second sealing rings are in contact with the first sealing rings. The second sealing rings extend into the mating groove, so that the second sealing sleeves and the first sealing rings are in contact to form multiple sealing barriers, thereby improving the sealing performance of the shaft sleeves.

[0013] Preferably, a tapered groove is provided on one side of the sealing sleeve, the tapered groove fits into the tapered ring, and two mating rings are provided on one side of the tapered groove. The mating rings extend to the inner side of the sealing ring and fit into the sealing ring. By extending the mating rings into the sealing ring on the tapered ring, the mating rings fit into the sealing ring, forming multiple sealing barriers and improving the sealing performance of the bushing.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This highly lubricated swing hinge structure, through the lubrication mechanism, can effectively reduce the friction generated by the rotation of the shaft within the bushing, making the shaft rotate more smoothly, reducing the wear generated by the shaft rotating within the bushing, and improving the service life of the shaft.

[0016] 2. This highly lubricated swing hinge structure, through a sealing mechanism, can effectively seal the assembly gap between the bushing and the shaft, preventing external dust, particles and other impurities from entering the bushing, thereby reducing the wear of the shaft. Attached Figure Description

[0017] Figure 1 This is a front-view three-dimensional structural diagram of a highly lubricated swing hinge structure proposed in this utility model;

[0018] Figure 2 This is a front sectional three-dimensional structural schematic diagram of a highly lubricated swing hinge structure proposed in this utility model;

[0019] Figure 3 This is a front sectional planar structural diagram of a highly lubricated swing hinge structure proposed in this utility model;

[0020] Figure 4 This utility model proposes a highly lubricated swing hinge structure. Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0021] In the diagram: 100, bushing; 110, mating groove; 111, first sealing ring; 120, conical ring; 121, sealing ring; 130, mounting groove; 140, oil suction pad; 150, oil guide groove; 151, through hole; 160, oil injection pipe; 170, rotating roller; 200, rotating shaft; 210, swing frame; 220, sealing sleeve; 221, second sealing ring; 230, conical groove; 231, mating ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1: Please refer to again Figure 1-4This utility model provides a highly lubricated swing hinge structure, including a bushing 100. Both ends of the bushing 100 have mating grooves 110, and a first sealing ring 111 is provided on the inner side of each mating groove 110. Both ends of the bushing 100 are connected to a conical ring 120, and two sealing rings 121 are provided on one side of each conical ring 120. An installation groove 130 is provided inside the bushing 100, and the inner cavity of the installation groove 130 is filled with an oil-absorbing pad 140. The bushing 100 has an oil guide groove 150 inside, and a through hole 151 is opened on the inner side of the oil guide groove 150. The through holes 151 are evenly distributed and are connected to the mounting groove 130. An oil injection pipe 160 is provided on the outer side of the bushing 100 and is connected to the oil guide groove 150. A rotating roller 170 is provided on the inner side of the bushing 100 and is evenly distributed. The outer side of the rotating roller 170 is in contact with the two rotating shafts 200.

[0024] Specifically, lubricating oil is injected into the oil injection pipe 160, allowing it to enter the oil guide groove 150. The lubricating oil then flows within the oil guide groove 150 and is guided through the through hole 151 to the mounting groove 130. The oil-absorbing pad 140 absorbs the lubricating oil, and the rotating roller 170, which is in contact with the oil-absorbing pad 140, adheres the lubricating oil from the oil-absorbing pad 140 to its surface as it rotates. This allows the rotating shaft 200 to rotate with the assistance of multiple rotating rollers 170 with the lubricating oil adhering to it, reducing the friction of the rotating shaft 200 when it rotates within the bushing 100.

[0025] Example 2: Please refer to again Figure 1-4 Two rotating shafts 200 are provided on the inner side of the bushing 100. The two rotating shafts 200 are connected by bolts. A swing frame 210 is connected between one end of the two rotating shafts 200. The swing frame 210 is connected to the rotating shafts 200 by bolts. A sealing sleeve 220 is provided on the outer side of each of the two rotating shafts 200. Two second sealing rings 221 are provided on one side of the sealing sleeve 220. The second sealing rings 221 extend to the inner side of the mating groove 110 and are in contact with the first sealing ring 111. A tapered groove 230 is provided on one side of the sealing sleeve 220. The tapered groove 230 is in contact with the tapered ring 120. Two mating rings 231 are provided on one side of the tapered groove 230. The mating rings 231 extend to the inner side of the sealing ring 121 and are in contact with the sealing ring 121.

[0026] Specifically, when installing the rotating shaft 200, the two rotating shafts 200 are inserted into the bushing 100 from both ends, and then the two rotating shafts 200 are rotated to screw them together. Then, the sealing sleeve 220 installed on the rotating shaft 200 fits into the bushing 100. After the sealing sleeve 220 fits into the bushing 100, the second sealing ring 221 extends into the mating groove 110, so that the second sealing ring 221 fits into the first sealing ring 111 in the mating groove 110 to form a multiple sealing barrier. At the same time, the conical groove 230 fits into the conical ring 120 to form a slope seal, and the mating ring 231 installed on the conical groove 230 extends into the sealing ring 121 on the conical ring 120 to form a multiple sealing barrier again.

[0027] Working principle: When installing the rotating shafts 200, the two rotating shafts 200 are inserted into the bushing 100 from both ends, and then the two rotating shafts 200 are rotated to screw them together. Afterwards, the sealing sleeves 220 installed on the rotating shafts 200 fit into the bushing 100. After the sealing sleeves 220 and bushing 100 are fitted together, the second sealing ring 221 installed on the sealing sleeves 220 extends into the mating groove 110 formed on the bushing 100, so that the second... The sealing ring 221 fits into the first sealing ring 111 in the mating groove 110 to form a multiple sealing barrier. At the same time, the tapered groove 230 on the sealing sleeve 220 fits into the tapered ring 120 on the bushing 100 to form a bevel seal. The mating ring 231 installed on the tapered groove 230 extends into the sealing ring 121 on the tapered ring 120 to form another multiple sealing barrier, thereby sealing the gap between the bushing 100 and the rotating shaft 200 and completing the installation of the rotating shaft.

[0028] When lubrication of the shaft is required, lubricating oil is injected into the oil injection pipe 160, allowing the lubricating oil to enter the oil guide groove 150 through the oil injection pipe 160. The lubricating oil then flows within the oil guide groove 150 and is guided to the mounting groove 130 through the evenly distributed through holes 151 within the oil guide groove 150. This allows the lubricating oil to come into contact with the oil-absorbing pad 140, causing the oil-absorbing pad 140 to absorb the lubricating oil. As the roller 170, which is in contact with the oil-absorbing pad 140, rotates, it adheres the lubricating oil from the oil-absorbing pad 140 to its surface. With the assistance of multiple rollers 170 with lubricating oil adhering to them, the shaft 200 rotates, reducing the friction of the shaft 200 when rotating within the bushing 100. This also reduces the wear of the shaft 200 and increases its service life.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A strong lubrication oscillating hinge point structure comprising a bushing (100), characterized in that, Both ends of the shaft sleeve (100) are provided with butt joints (110), the inner side of the butt joint (110) is provided with a first sealing ring (111), both ends of the shaft sleeve (100) are connected with a tapered ring (120), one side of the tapered ring (120) is provided with two sealing rings (121). The inner side of the shaft sleeve (100) is provided with two rotating shafts (200), the two rotating shafts (200) are connected by bolts, and one end of the two rotating shafts (200) is connected with a swing frame (210).

2. A strong lubricated oscillating pivot point structure as claimed in claim 1, characterized in that The inside of the shaft sleeve (100) is provided with a mounting groove (130).

3. A highly lubricious oscillating trunnion point structure as claimed in claim 2, wherein, The inner cavity of the mounting groove (130) is filled with an oil absorption pad (140), and the inside of the shaft sleeve (100) is provided with an oil guide groove (150).

4. A highly lubricious oscillating trunnion point structure as claimed in claim 3, wherein, The inner side of the oil guide groove (150) is provided with through holes (151), and the through holes (151) are uniformly distributed, and the through holes (151) are communicated with the mounting groove (130).

5. A highly lubricious oscillating trunnion point structure as claimed in claim 4, wherein, The outer side of the shaft sleeve (100) is provided with an oil injection pipe (160), the oil injection pipe (160) is communicated with the oil guide groove (150), the inner side of the shaft sleeve (100) is provided with a rotating roller (170), and the rotating roller (170) is uniformly distributed, and the outer side of the rotating roller (170) is in contact with the two rotating shafts (200).

6. A highly lubricious oscillating pivot point structure as in claim 1, wherein, The outer side of the two rotating shafts (200) is provided with a sealing sleeve (220), one side of the sealing sleeve (220) is provided with two second sealing rings (221), the second sealing ring (221) extends to the inner side of the butt joint (110), and the second sealing ring (221) is in close contact with the first sealing ring (111).

7. A highly lubricious oscillating trunnion point structure as claimed in claim 6, wherein, One side of the sealing sleeve (220) is provided with a tapered groove (230), the tapered groove (230) is in close contact with the tapered ring (120), one side of the tapered groove (230) is provided with two butt rings (231), the butt ring (231) extends to the inner side of the sealing ring (121), and the butt ring (231) is in close contact with the sealing ring (121).

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