CN213298642U

CN213298642U - Piston suspension type hydraulic release bearing

Info

Publication number: CN213298642U
Application number: CN202022216648.6U
Authority: CN
Inventors: 彭海军; 代魏疆; 宓清来
Original assignee: Zhejiang Birui Auto Parts Co ltd
Current assignee: Zhejiang Birui Auto Parts Co ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-05-28
Anticipated expiration: 2030-09-30

Abstract

The utility model provides a piston suspension type hydraulic release bearing belongs to release bearing technical field. This piston suspension type hydraulic release bearing, including the iron cover, the top of iron cover is connected with the pump body, and the internal connection of the pump body has the spring, and the inner wall connection of the pump body has the leather cup, and the top of leather cup is connected with the piston, and the top of piston is connected with the axle sleeve through turning over the riveting, and the inside top of axle sleeve is connected with the fore shaft. The utility model discloses a be provided with the iron cover, axle sleeve and the pump body, product assembly hydraulic cylinder wall comprises iron cover and the pump body jointly, but the offset between piston and the axle sleeve this moment offset automatic compensation pump body and the eccentric variable between the iron cover, the assembly degree of difficulty of pump body iron cover has been reduced by a wide margin, can effectively avoid the friction between piston and the cylinder wall, prolong the life of product by a wide margin, rivet the assembly through turning over between piston and the axle sleeve, incompletely compress tightly when turning over and riveting, make the piston hang on the axle sleeve, certain clearance has been deposited again, the piston can the relative axle sleeve produce certain axial and radial skew.

Description

Piston suspension type hydraulic release bearing

Technical Field

The utility model belongs to the technical field of release bearing, a piston suspension type hydraulic release bearing is related to.

Background

The bearing is an important part in the modern mechanical equipment. Its main function is to support the mechanical rotator, reduce the friction coefficient in its motion process and ensure its rotation precision, and the bearing within this life should have initial fatigue damage (peeling or defect) on any bearing ring or rolling element. However, whether in laboratory tests or in actual use, it is evident that bearings of the same appearance and the same actual life under the same operating conditions are very different. There are also several differently defined bearing "lives", one of which is the so-called "working life", which means that the actual life that a bearing can reach before it breaks down is due to wear, damage not usually being caused by fatigue, but by wear, corrosion, seal failure, etc.

The existing piston suspension type hydraulic release bearing is characterized in that a pump body is generally installed at the top of an iron sleeve firstly, the existing pump body is high in concentricity requirement when being assembled, the pump body is difficult to completely coincide when being assembled, and meanwhile, in the assembly of a leather cup in the pump body, the leather cup is easy to break away due to infirm assembly under long-time use, so that the pump body is unstable during operation due to the risk of breakage caused by rotation operation of the bearing.

Disclosure of Invention

The utility model aims at having above-mentioned problem to current technique, provided a piston suspension type hydraulic release bearing, require highly for solving the assembly, the problem that the leather cup breaks away from easily.

The purpose of the utility model can be realized by the following technical proposal: piston suspension type hydraulic separation bearing, including the iron cover, the top of iron cover is connected with the pump body, the internal connection of the pump body has the spring, the inner wall connection of the pump body has the leather cup, the top of leather cup is connected with the piston, the top of piston is connected with the axle sleeve through turning over the riveting, the inside top of axle sleeve is connected with the fore shaft, the top of axle sleeve is connected with the bearing fixing base, the bearing fixing base is connected with the fore shaft, the top of bearing fixing base is connected with the bearing.

Preferably, the top of the leather cup is matched with the piston, the leather cup is made of Ethylene Propylene Diene Monomer (EPDM), and the piston is made of 08F steel.

Preferably, the diameter of the bottom of the locking notch is smaller than the inner diameter of the shaft sleeve, and the locking notch is made of 08F steel.

Preferably, the bearing is fixed with the shaft sleeve through a bearing fixing seat, the bearing fixing seat and the shaft sleeve are arranged in a rivet-turning mode, the shaft sleeve is made of polyhexamethylene adipamide (PA66), and the bearing fixing seat is made of 08F steel.

Preferably, a sealing ring is connected to the inside of the iron sleeve.

Preferably, an oil inlet seat and an exhaust seat are arranged on one side of the pump body.

Compared with the prior art, the utility model has the advantages of it is following: the utility model discloses a through being provided with iron cover, axle sleeve and pump body, product assembly hydraulic cylinder wall comprises iron cover and pump body jointly, and the offset between piston and the axle sleeve can automatic compensation pump body and the eccentric amount between the iron cover this moment, has reduced the assembly degree of difficulty of pump body iron cover by a wide margin, can effectively avoid the friction between piston and the cylinder wall, prolongs the life of product by a wide margin; the piston and the shaft sleeve are assembled through rivet turning, and are not completely pressed during rivet turning, so that the piston is suspended on the shaft sleeve, a certain gap is reserved, and the piston can generate certain axial and radial offset relative to the shaft sleeve; simultaneously, the piston design is the stamping workpiece, and its characteristics lie in the packing cup draw-in groove and obtain by bending, and the back-off can be done bigger, and the packing cup assembly is more firm, is difficult for droing, in addition, because for loose the joining in marriage between piston and the axle sleeve, the rotatory moment of torsion and the vibrations of product during operation bearing can't transmit packing cup department, have reduced the cracked risk of packing cup by a wide margin.

Drawings

Fig. 1 is a schematic view of the bearing structure of the present invention;

fig. 2 is a schematic top view of the bearing of the present invention;

fig. 3 is a schematic view of the shaft sleeve structure of the present invention.

In the figure: 1. an iron sleeve; 2. a pump body; 3. a spring; 4. a leather cup; 5. a piston; 6. a shaft sleeve; 7. a bearing fixing seat; 8. locking the opening; 9. and a bearing.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "disposed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The following describes an embodiment of the present invention according to its overall structure.

As shown in fig. 1-3, piston suspension type hydraulic release bearing, including the iron cover 1, the pump body 2, spring 3, leather cup 4, piston 5, axle sleeve 6, bearing fixing base 7, fore shaft 8, bearing 9, the top of iron cover 1 is connected with the pump body 2, the internal connection of the pump body 2 has spring 3, the inner wall connection of the pump body 2 has leather cup 4, the top of leather cup 4 is connected with piston 5, the top of piston 5 is connected with axle sleeve 6 through turning over the riveting, the inside top of axle sleeve 6 is connected with fore shaft 8, the top of axle sleeve 6 is connected with bearing fixing base 7, bearing fixing base 7 is connected with fore shaft 8, the top of bearing fixing base 7 is connected with bearing 9.

Referring to fig. 1-2, the top of the cup 4 is adapted to the piston 5, the cup 4 is made of Ethylene Propylene Diene Monomer (EPDM), and the piston 5 is made of 08F, which increases the service life of the rubber of the cup 4 and the piston 5 during use. The bottom diameter of fore shaft 8 is less than the inside diameter of axle sleeve 6, makes fore shaft 8 fix in the inside of axle sleeve 6, and the material of fore shaft 8 is 08F, increases the fastness, prevents that inner structure from scattering. Ethylene Propylene Diene Monomer (EPDM) has excellent ageing resistance, weather resistance, ozone resistance, heat resistance, water resistance, acid and alkali resistance, wide application temperature range and good elasticity, and the elasticity can be still maintained at low temperature.

Referring to fig. 1-3, a sealing ring is connected inside the iron sleeve 1 to increase the sealing performance of the iron sleeve, and an oil inlet seat and an air outlet seat are disposed on one side of the pump body 2 to enable the structure to be better used.

Referring to fig. 1-3, the bearing 9 is fixed to the shaft sleeve 6 through the bearing fixing seat 7, the bearing fixing seat 7 and the shaft sleeve 6 are riveted, the shaft sleeve 6 is made of polyhexamethylene adipamide (PA66), and the bearing fixing seat 7 is made of 08F, so that the shaft sleeve and the bearing fixing seat are more wear-resistant to connection. Polyhexamethylene adipamide (PA66) has high mechanical strength, good toughness, high tensile and compressive strength, high vibration and impact resistance, good heat resistance, oil and corrosion resistance and good wear resistance.

In this embodiment, the pump body 2 is made of 6061 aluminum alloy, and the 6061 aluminum alloy has high toughness, excellent processability, good material compactness, no defect, excellent oxidation effect and good corrosion resistance. The iron sleeve 1 is made of 08F steel material, and the spring 3 is made of 65 manganese steel material.

The working principle is as follows: firstly, before use, the piston 5 is installed, at the moment, the offset between the piston 5 and the shaft sleeve 6 can automatically compensate the eccentric amount between the pump body 2 and the iron sleeve 1, the assembly difficulty of the iron sleeve 1 of the pump body 2 is greatly reduced, the friction between the piston 5 and the cylinder wall can be effectively avoided, the service life of the product is greatly prolonged, the piston 5 and the shaft sleeve 6 are assembled by rivet turning, the piston is not completely pressed when the rivet is turned, the piston 5 is suspended on the shaft sleeve, a certain gap is reserved, the piston 5 can generate certain axial and radial offset relative to the shaft sleeve 6, the clamping groove of the leather cup 4 is obtained by bending, the reverse buckle can be made larger, the leather cup 4 is assembled more firmly and is not easy to fall off, in addition, because the piston 5 and the shaft sleeve 6 are loosely matched, the rotating torque and the vibration of the bearing 9 can not be transmitted to the leather cup 4 when the product works, and the risk of cracking of the leather cup 4 is greatly reduced.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the sleeve 1, the pump body 2, the spring 3, the cup 4, the piston 5, the shaft sleeve 6, the bearing fixing seat 7, the locking notch 8, the bearing 9 and the like are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. Piston suspension type hydraulic release bearing, including iron cover (1), its characterized in that: the top of iron set (1) is connected with the pump body (2), the internal connection of the pump body (2) has spring (3), the inner wall connection of the pump body (2) has leather cup (4), the top of leather cup (4) is connected with piston (5), the top of piston (5) is through turning over the riveting and being connected with axle sleeve (6), the inside top of axle sleeve (6) is connected with fore shaft (8), the top of axle sleeve (6) is connected with bearing fixing base (7), bearing fixing base (7) are connected with fore shaft (8), the top of bearing fixing base (7) is connected with bearing (9).

2. The piston-suspended hydraulic release bearing according to claim 1, characterized in that the top of the cup (4) is adapted to the piston (5), and the cup (4) is made of EPDM (ethylene propylene diene monomer) and the piston (5) is made of 08F steel.

3. Piston-suspended hydraulic release bearing according to claim 1, characterized in that the bottom diameter of the locking notch (8) is smaller than the inner diameter of the sleeve (6) and the locking notch (8) is made of 08F steel.

4. The piston-suspended hydraulic release bearing according to claim 1, wherein the bearing (9) is fixed to the shaft sleeve (6) by a bearing fixing seat (7), the bearing fixing seat (7) and the shaft sleeve (6) are riveted together, the shaft sleeve (6) is made of polyhexamethylene adipamide PA66, and the bearing fixing seat (7) is made of 08F steel.

5. Piston-suspended hydraulic release bearing according to claim 1, characterized in that a sealing ring is connected to the inside of the iron sleeve (1).

6. Piston-suspended hydraulic release bearing according to claim 1, characterized in that the pump body (2) is provided with an oil inlet seat and an air outlet seat on one side.