CN105570293A

CN105570293A - Multi-layer oil film sliding bearing

Info

Publication number: CN105570293A
Application number: CN201610131885.8A
Authority: CN
Inventors: 戴光荣
Original assignee: LOUDI JIAHUA MACHINERY CO Ltd
Current assignee: LOUDI JIAHUA MACHINERY CO Ltd
Priority date: 2016-03-09
Filing date: 2016-03-09
Publication date: 2016-05-11

Abstract

The invention discloses a multi-layer oil film sliding bearing. One or more sliding bearing inner rings are sequentially arranged in an inner cavity of the outer ring of the sliding bearing in a tight or spaced manner. A pressing ring is arranged at the shared end of the outer ring of the sliding bearing and the inner rings of the sliding bearing. An adjustment fracture is machined in each inner ring of the sliding bearing. A piston is installed in central axial holes of the inner rings of the sliding bearing. A first oil film layer a between the outer ring of the sliding bearing and the inner rings of the sliding bearing and a second oil film layer b between the inner rings of the sliding bearing and the piston are communicated with each other. The sliding bearing is provided with multiple layers of oil films, and therefore the lubrication effect between the sliding bearing and the piston is enhanced; by adjusting the fractures, the thicknesses of the oil film layers can be adjusted, and therefore the good contact between the piston and the sliding bearing is further improved, and the service life of the bearing and the piston is prolonged; and the multi-layer oil film sliding bearing can be widely applied to rock drills or other devices with strong vibration and is large in practical value.

Description

Multilayer oil film sliding bearing

Technical field

The present invention relates to a kind of bearing, particularly relate to a kind of supporting the use in having the rock drill of impact force or promoting the use of the multilayer oil film sliding bearing on the equipment of other judder phenomenon.

Background technique

Be used at present impact head (or being called piston) in the rock drill in mining or the disintegrator in road engineering operationally high speed operation in sliding bearing, this impact head, except having huge impact force, also has rotating force just can reach the object of fractured rock.Before making the present invention, described impact head (or piston) is with being in individual layer oil film contact condition between sliding bearing internal surface, this contact structures (shape) or mode make sliding bearing internal surface with only having one deck oil film between outer surface of piston, and lubrication effect is poor.When operating, longer this layer of oil film can become book exsiccation, and both are in dry grinding state, in addition because sealing effect is poor, piston and sliding bearing surface abrasion are increased, and except leakage of oil, the working life of sliding bearing and piston final result cause shorten, change frequent, inefficiency.

Summary of the invention

The object of the present invention is to provide a kind of sliding bearing that strengthens with lubrication effect between piston and the multilayer oil film sliding bearing improving the working efficiency such as sliding bearing/piston working life and then raising rock drill equipment.

In order to achieve the above object, the technical solution used in the present invention is: described multilayer oil film sliding bearing comprises pressure ring, sliding bearing outer ring, sliding bearing inner ring, the integer of N(N >=1 is equipped with successively in the inner chamber of sliding bearing outer ring) individual sliding bearing inner ring, and be tight type assembling or space type assembling at the sliding bearing inner ring that quantity is greater than 1, during space type assembling, its spacing is equal or unequal, is configured with pressure ring in the common termination of sliding bearing outer ring and sliding bearing inner ring.Each sliding bearing inner ring is processed with one and regulates fracture, piston is arranged on and is more than or equal in the cavity axial center hole that 1 sliding bearing inner ring forms by quantity.Between sliding bearing outer ring is with sliding bearing inner ring, has the first oil lamella a, has the second oil lamella b between sliding bearing inner ring is with piston, the first oil lamella a communicates with each other with the second oil lamella b.

Compared with prior art, technique effect is the multilayer oil film sliding bearing adopting as above technological scheme to provide:

1. be assembled with at the inwall of sliding bearing outer ring the sliding bearing inner ring that the quantity made by elastic material is more than or equal to 1, sliding bearing is made to become overall structure by single structure, sliding bearing outer ring, sliding bearing inner ring, with forming multilayer oil pocket (i.e. multilayer oil film) between piston, strengthen the lubrication effect of sliding bearing with piston space.

2. sliding bearing inner ring elastic material makes, each sliding bearing inner ring machined one and regulate fracture, this regulates the width of fracture depending on different operating mode, this regulate fracture adjustable sliding bearing outer ring with between sliding bearing inner ring and sliding bearing inner ring with the spacing between outer surface of piston, namely each oil lamella thickness of adjustable, enhances the lubrication effect between each workpiece.

3. in sliding bearing outer ring, the termination of sliding bearing inner ring is furnished with pressure ring, described multilayer oil film sliding bearing is formed, its compact structure, good airproof performance by pressure ring, sliding bearing outer ring and sliding bearing inner ring, its working life is the decades of times of original sliding bearing, and working efficiency is apparent.

Accompanying drawing explanation

Fig. 1 is multilayer oil film sliding bearing package assembly cross-sectional schematic of the present invention, is also Figure of abstract of the present invention.

Fig. 2 is the package assembly cross-sectional schematic of multilayer oil film sliding bearing with piston.

Fig. 3 is the A place enlarged diagram of Fig. 2, has the first oil lamella a and the second oil lamella b in figure.

Fig. 4 is the amplification partial schematic sectional view of sliding bearing inner ring.

Embodiment

Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.

(as shown in Figure 1) the multilayer oil film sliding bearing described in comprises pressure ring 1, sliding bearing outer ring 2 and sliding bearing inner ring 3, the integer of N(N >=1 is equipped with successively in the inner chamber of sliding bearing outer ring 2) individual sliding bearing inner ring 3, (as Fig. 2) piston 5 is arranged in the cavity axial center hole be made up of N number of sliding bearing inner ring 3, piston 5 can do axial impact motion in N number of sliding bearing inner ring 3, rotatable action again.(as Fig. 3) has the first oil lamella a between sliding bearing outer ring 2 is with sliding bearing inner ring 3, has the second oil lamella b between sliding bearing inner ring 3 is with piston 5.Described first oil is touched layer a and the second oil lamella b and is formed multilayer oil film, has the sliding bearing of multilayer oil film to be called multilayer oil film sliding bearing.

Common termination in sliding bearing outer ring 2 with sliding bearing inner ring 3 is configured with pressure ring 1, and the sliding bearing inner ring 3 being more than or equal to 1 by pressure ring 1, sliding bearing outer ring 2 and quantity forms the multilayer oil film sliding bearing described in this case.

Each sliding bearing inner ring 3 is processed with one and regulates fracture 4, the width of each adjustment fracture 4 is depending on operating mode, in addition described sliding bearing inner ring 3 is made by elastic material (metal or nonmetallic material), regulate the width of fracture 4 can regulate the thickness of the first oil lamella a and the second oil lamella b, can improve the lubrication effect of piston 5 in multilayer oil film sliding bearing, this played a crucial role to the working life extending piston 5 and multilayer oil film sliding bearing.

N number of (integer of N >=1) the sliding bearing inner ring 3 be assemblied in the inner chamber of sliding bearing outer ring 2 can be tight type assembling, also can assemble for space type, and when assembling quantity and being greater than 1 sliding bearing inner ring 3, each spacing can be equal or unequal.But no matter quantity is greater than 1 sliding bearing inner ring 3 for tight type assembling or space type assembling, first oil lamella a all communicates with each other with the second oil lamella b, ensure that piston 5 operationally keeps good lubrication effect with between sliding bearing outer ring 2 and sliding bearing inner ring 3, ensure that multilayer oil film sliding bearing is not worn, extend its working life, also extend the working life of piston 5.

During enforcement, supporting on rock drill for described multilayer oil film sliding bearing, start relevant apparatus, now piston 5 plays impactor effect, and under huge impact force and rotating force effect, piston 5 can to being carried out fragmentation by broken thing or beating grotto (hole).About rock drill impactor with the present patent application applied for utility model patent " rock drill impactor piston antivibration bearing device " on the same day, both support the use, and can reach object of the present invention.

Claims

1. multilayer oil film sliding bearing, comprise pressure ring (1), sliding bearing outer ring (2) and sliding bearing inner ring (3), it is characterized in that: in the inner chamber of sliding bearing outer ring (2), be equipped with N number of sliding bearing inner ring (3) successively, be configured with pressure ring (1) in the common termination of sliding bearing outer ring (2) and sliding bearing inner ring (3); Each sliding bearing inner ring (3) is processed with one and regulates fracture (4), piston (5) is arranged in the cavity axial center hole be made up of N number of sliding bearing inner ring (3); Between sliding bearing outer ring (2) are with sliding bearing inner ring (3), have the first oil lamella a, have the second oil lamella b between sliding bearing inner ring (3) same to piston (5), the first oil lamella a communicates with each other with the second oil lamella b;

Described N be more than or equal to 1 integer.

2. multilayer oil film sliding bearing according to claim 1, is characterized in that: the N number of sliding bearing inner ring (3) be assemblied in sliding bearing outer ring (2) inner chamber is tight type assembling or space type assembling, and its spacing is equal or unequal;

Described N be greater than 1 integer.