CN113007220A - Bushing and oil pump - Google Patents
Bushing and oil pump Download PDFInfo
- Publication number
- CN113007220A CN113007220A CN202110376538.2A CN202110376538A CN113007220A CN 113007220 A CN113007220 A CN 113007220A CN 202110376538 A CN202110376538 A CN 202110376538A CN 113007220 A CN113007220 A CN 113007220A
- Authority
- CN
- China
- Prior art keywords
- bushing
- bush
- oil
- shaft hole
- pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0088—Lubrication
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
- F16C33/106—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
- F16C33/1065—Grooves on a bearing surface for distributing or collecting the liquid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N13/00—Lubricating-pumps
- F16N13/20—Rotary pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/60—Shafts
- F04C2240/605—Shaft sleeves or details thereof
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Rotary Pumps (AREA)
Abstract
The invention provides a bushing which is formed by rolling a strip-shaped bushing plate, wherein a mortise is arranged at one end of the bushing plate, a tenon is arranged at the other end of the bushing plate, the mortise and the tenon can be interlocked and buckled to form a bushing joint after the bushing plate is rolled, oil grooves are arranged at positions close to two end parts on the inner side surface of the bushing plate, and the middle section of the bushing plate is an area without the oil grooves. The invention also provides an oil pump which comprises a pump body and a pump cover, wherein the bush provided by the invention is pressed in the shaft hole of the pump body and/or the pump cover, and the part of the bush, which is a non-oil groove area, is positioned in the stress area of the shaft hole. Because bush seam and oil groove set up the same region at the bush, avoided axle and shaft hole atress region, just so can avoid the bush seam to warp because of long-term atress.
Description
Technical Field
The invention relates to the technical field of lubricating systems of internal combustion engines or lubricating hydraulic systems of transmissions, in particular to a bushing and an oil pump with the bushing.
Background
The bush used on the traditional engine or transmission oil pump is provided with an oil hole or an oil groove on the bush alloy layer, so that on one hand, oil can conveniently enter a shaft hole gap, and on the other hand, the oil storage on the wall of the bush can be increased, and the lubrication between the shaft hole and the shaft can be improved.
Wherein, the bush of taking the oil pocket is equipartition oil pocket on the whole inner bore wall, so shaft hole and axle atress region inevitably have a plurality of oil pockets too, will reduce the area of contact of bush hole and oil pump axle like this, make bush PV value great, the bush hole is in the course of working simultaneously, and the easy burr that is difficult to the clearance that produces in oil pocket position produces the unfavorable fish tail of countershaft production.
The bush with the oil groove is generally formed by rolling and forming a bush plate, so that a bush joint can be formed, and the oil groove needs to be arranged in an area with the length of about two thirds of that of the bush plate, so that the oil groove is directly arranged at the middle section of the bush plate, and the two ends of the bush plate are processed into tenon-and-mortise structures which are mutually locked. In order to avoid the oil grooves falling on the stress areas of the shaft hole and the shaft, the joint of the bush usually has to be placed in the stress areas of the shaft hole and the shaft, so that the bush can deform and wear to a certain extent after being stressed, and burrs are easily generated at the joint to scratch the shaft.
For the reasons, the bushing with the oil cavity and the bushing with the oil groove have certain limitations in application occasions, and cannot be widely popularized and used.
Disclosure of Invention
The invention aims to provide a bushing with a more reasonable structure, which avoids deformation after stress and also provides an oil pump provided with the bushing.
In order to solve the problems, the invention adopts the technical scheme that: the utility model provides a bush, is rolled up by the bush panel of a rectangular shape and forms, and the one end of bush panel is equipped with the tongue-and-groove, and the other end is equipped with the tenon, and the tongue-and-groove can interlock hasp formation bush seam after the bush panel is rolled up, is equipped with the oil groove in the position that bush panel medial surface is close to both ends, and the interlude of bush panel is no oil groove region.
As a preferable technical scheme, after the lining plate is rolled into the lining, the range of at least 120 degrees of the shaft hole of the lining is an oil groove-free area.
As a further technical scheme, the two ends of the lining plate are respectively provided with a tenon and a mortise which can be mutually buckled, the shape of each mortise is wide inside and narrow outside, and the shape of each tenon is matched with the corresponding mortise.
In one embodiment, one end of the lining plate is provided with two mortises, and a tenon is arranged between the two mortises; the other end of the lining plate is provided with two tenons, and a mortise is arranged between the two tenons.
Preferably, after the lining plate is rolled into a lining, the oil grooves inside the lining form an X-shape with a certain point of the lining seam as a crossing point.
Wherein, the oil groove has at least one end and the terminal surface intercommunication of bush.
The oil pump comprises a pump body and a pump cover, wherein a bush provided by the invention is pressed in a shaft hole of the pump body and/or the pump cover, and an oil groove-free area of the bush corresponds to a stress area of the shaft and the shaft hole.
The beneficial effects obtained by the invention are as follows: because the two ends of the lining plate are provided with the tenon-and-mortise structures which can be mutually locked, the deformation of the pressed lining can be effectively reduced; compared with the existing bushing with the oil grooves, the bushing provided by the invention has the advantages that the oil grooves are arranged at the two ends of the bushing plate, so that the joints of the oil grooves and the bushing are positioned in the same area, and during installation, the area without the oil grooves of the bushing is aligned to the stress area of the shaft and the shaft hole, so that a complete oil film can be formed in the shaft hole of the bushing, and the abrasion can be reduced under the action of the oil film when the shaft rotates in the shaft hole; the area of the bushing with the oil groove faces the pump cavity side, oil can enter the deeper axial direction of the bushing through the oil groove, the resistance of the oil entering the shaft hole is reduced, and more lubricating oil is brought to a gap between the shaft and the shaft hole; because bush seam and oil groove set up the same region at the bush, avoided axle and shaft hole atress region, just so can avoid the bush seam to warp because of long-term atress.
Drawings
FIG. 1 is a schematic view of a liner structure according to embodiment 1 of the present invention;
FIG. 2 is a schematic view showing a developed structure of the hub in embodiment 1 of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 4 is a schematic view of an oil pump in embodiment 2 of the present invention;
fig. 5 is a schematic structural diagram of a pump cover in embodiment 2 of the present invention;
FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5;
fig. 7 is a schematic structural view of a pump body in embodiment 2 of the present invention;
FIG. 8 is a cross-sectional view taken along line A-A of FIG. 7;
in the figure:
1-positioning sleeve 2-pump cover 3-driven gear shaft
4-driving gear shaft 5-pump body 6-bush
61-tongue-and-groove 62-tenon 63-bush joint
64-oil sump.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. In the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, or interconnected between two elements, directly or indirectly through intervening media, and the specific meaning of the terms may be understood by those skilled in the art according to their specific situation.
Example 1
A bushing as shown in fig. 1 to 3 is formed by rolling a long strip-shaped bushing plate, the length of the bushing plate is a, the width of the bushing plate is B, two mortises 61 are formed in one end of the bushing plate, a tenon 62 is arranged between the two mortises 61, two tenons 62 are arranged at the other end of the bushing plate, a mortise 61 is arranged between the two tenons 62, the shape of each mortise 61 is wide inside and narrow outside, the shape of each tenon 62 is matched with the corresponding mortise 61, the mortises 61 and the tenons 62 can be interlocked and buckled to form a bushing joint 63 after the bushing plate is rolled, and the mortise structure can effectively reduce deformation of the bushing after being pressed; the oil grooves 64 are arranged at the positions, close to the two end parts, of the inner side surface of the lining plate, so that the oil grooves 64 and the lining joint 63 are located in the same area, and the middle section of the lining plate is an oil groove-free area.
According to the preferable technical scheme, after the lining plate is coiled into the lining, the range of at least 120 degrees of the shaft hole of the lining is an oil groove-free area; the oil grooves 64 on the inside of the liner form an X-shape with a certain point of the liner seam 63 as a cross-over point.
Wherein at least one end of the oil groove 64 is communicated with the end surface of the bushing. If the bushing is applied to a high-pressure pump, as shown in fig. 2, only one end of the oil groove 64 needs to be communicated with the end face of the bushing, the other end of the oil groove 64 keeps a certain distance b from the end face, and the distance b is usually 5 mm-8 mm, so that sealing is improved, and the leakage rate of the shaft hole under high pressure is reduced. If the bush is using on the low-pressure pump, then all design and terminal surface intercommunication at oil groove 64 both ends, this is because it is limited to let out the leakage quantity on the low-pressure pump, and fluid can directly leak outside the pump through oil groove 64, can take away a large amount of heats on the one hand, and on the other hand can let impurity in time discharge away, reduces the risk of shaft hole jamming.
When the bushing is installed, the oil groove-free area of the bushing is aligned with the stress area of the shaft and the shaft hole, so that a complete oil film can be formed in the shaft hole of the bushing, and the abrasion can be reduced under the action of the oil film when the shaft rotates in the shaft hole; the area of the bushing with the oil groove faces the pump cavity side, oil can enter the deeper axial direction of the bushing through the oil groove, the resistance of the oil entering the shaft hole is reduced, and more lubricating oil is brought to a gap between the shaft and the shaft hole; because the bush joint 63 and the oil groove 64 are arranged in the same area of the bush, the stress area of the shaft and the shaft hole is avoided, and thus the deformation of the bush joint 63 due to long-term stress can be avoided.
Example 2
An oil pump as shown in fig. 4 to 8 includes a positioning sleeve 1, a pump cover 2, a driven gear shaft 3, a driving gear shaft 4, a pump body 5, and a bushing 6, wherein the bushing 6 is pressed in a shaft hole of the pump body 5 and/or the pump cover 2, the structure of the bushing 6 is the same as that of the bushing in embodiment 1, a portion of an angle a in fig. 5 and 7 is a shaft and shaft hole stress area, an oil groove-free area of the bushing 6 is located in the shaft and shaft hole stress area, an area with an oil groove 64 faces a high pressure chamber side of the oil pump, and a bushing joint is arranged in the bushing oil groove area.
The above embodiments are preferred implementations of the present invention, and the present invention can be implemented in other ways without departing from the spirit of the present invention.
Some of the drawings and descriptions of the present invention have been simplified to facilitate the understanding of the improvements over the prior art by those skilled in the art, and some other elements have been omitted from this document for the sake of clarity, and it should be appreciated by those skilled in the art that such omitted elements may also constitute the subject matter of the present invention.
Claims (7)
1. The utility model provides a bush, is rolled up by the bush panel of a rectangular shape and forms, and the one end of this bush panel is equipped with tongue-and-groove (61), and the other end is equipped with tenon (62), and tongue-and-groove (61) and tenon (62) can interlock hasp formation bush seam (63) after the bush panel is rolled up and is made, its characterized in that: and oil grooves (64) are formed in the positions, close to the two end parts, of the inner side surface of the lining plate, and the middle section of the lining plate is an oil groove-free area.
2. The bushing of claim 1, wherein: after the bushing plate is rolled into the bushing, the range of at least 120 degrees of the shaft hole of the bushing is an oil groove-free area.
3. The bushing of claim 1, wherein: both ends of the lining plate are provided with tenons (62) and mortises (61), the tenons and the mortises at both ends can be mutually buckled, the shape of the mortises (61) is wide inside and narrow outside, and the shape of the tenons (62) is adapted to the mortises (61).
4. The bushing of claim 3, wherein: one end of the lining plate is provided with two mortises (61), and a tenon (62) is arranged between the two mortises (61); the other end of the lining plate is provided with two tenons (62), and a mortise (61) is arranged between the two tenons (62).
5. The bushing of claim 1, wherein: after the liner is made by rolling the liner plate, the oil grooves (64) on the inner side of the liner form an X shape with a certain position of the liner joint (63) as an intersection.
6. The bushing of claim 5 wherein: and at least one end of the oil groove (64) is communicated with the end surface of the bushing.
7. The utility model provides an oil pump, includes pump body (5), pump cover (2), its characterized in that: the pump body (5) and/or the pump cover (2) are internally pressed with a bushing (6) according to any one of claims 1 to 6, and the non-oil-groove area of the bushing (6) corresponds to the bearing area of the shaft and the shaft hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110376538.2A CN113007220A (en) | 2021-04-08 | 2021-04-08 | Bushing and oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110376538.2A CN113007220A (en) | 2021-04-08 | 2021-04-08 | Bushing and oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113007220A true CN113007220A (en) | 2021-06-22 |
Family
ID=76388102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110376538.2A Pending CN113007220A (en) | 2021-04-08 | 2021-04-08 | Bushing and oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113007220A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002195261A (en) * | 2000-12-26 | 2002-07-10 | Hitachi Constr Mach Co Ltd | Bush and manufacturing method of bush |
| CN101042154A (en) * | 2007-04-11 | 2007-09-26 | 潍柴动力股份有限公司 | Engines connecting rod bushing |
| CN201627826U (en) * | 2010-01-27 | 2010-11-10 | 宁波轴瓦厂 | Automobile brake air compressor bearing bush with eccentric oil groove |
| CN204264177U (en) * | 2014-07-16 | 2015-04-15 | 哈尔滨东安液压机械股份有限公司 | Speed-reduction top housing assembly set lining |
| CN205173302U (en) * | 2015-10-21 | 2016-04-20 | 湖北故联实业股份有限公司 | Air disc brake |
| CN106763126A (en) * | 2016-12-30 | 2017-05-31 | 广西玉柴机器股份有限公司 | Connecting rob bushing |
| CN207377969U (en) * | 2017-08-29 | 2018-05-18 | 老河口市万顺汽车配件有限公司 | A kind of automobile rare earth oil-containing modified MC nylon casting bushing |
| CN209115996U (en) * | 2018-11-29 | 2019-07-16 | 湖南机油泵股份有限公司 | A kind of gear type oil pump for capableing of fast lubricant bushing |
| CN209621844U (en) * | 2018-12-11 | 2019-11-12 | 沈阳航天三菱汽车发动机制造有限公司 | A kind of connection rod of automobile engine small end bushing |
| CN110586758A (en) * | 2019-09-20 | 2019-12-20 | 江苏易实精密科技股份有限公司 | Integrally-formed machining system and machining method for rolled shell |
| CN110701153A (en) * | 2019-09-24 | 2020-01-17 | 李明 | Seamless splicing piece |
| CN212563360U (en) * | 2020-04-29 | 2021-02-19 | 皆可博(苏州)车辆控制系统有限公司 | Brake rocker arm bushing |
-
2021
- 2021-04-08 CN CN202110376538.2A patent/CN113007220A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002195261A (en) * | 2000-12-26 | 2002-07-10 | Hitachi Constr Mach Co Ltd | Bush and manufacturing method of bush |
| CN101042154A (en) * | 2007-04-11 | 2007-09-26 | 潍柴动力股份有限公司 | Engines connecting rod bushing |
| CN201627826U (en) * | 2010-01-27 | 2010-11-10 | 宁波轴瓦厂 | Automobile brake air compressor bearing bush with eccentric oil groove |
| CN204264177U (en) * | 2014-07-16 | 2015-04-15 | 哈尔滨东安液压机械股份有限公司 | Speed-reduction top housing assembly set lining |
| CN205173302U (en) * | 2015-10-21 | 2016-04-20 | 湖北故联实业股份有限公司 | Air disc brake |
| CN106763126A (en) * | 2016-12-30 | 2017-05-31 | 广西玉柴机器股份有限公司 | Connecting rob bushing |
| CN207377969U (en) * | 2017-08-29 | 2018-05-18 | 老河口市万顺汽车配件有限公司 | A kind of automobile rare earth oil-containing modified MC nylon casting bushing |
| CN209115996U (en) * | 2018-11-29 | 2019-07-16 | 湖南机油泵股份有限公司 | A kind of gear type oil pump for capableing of fast lubricant bushing |
| CN209621844U (en) * | 2018-12-11 | 2019-11-12 | 沈阳航天三菱汽车发动机制造有限公司 | A kind of connection rod of automobile engine small end bushing |
| CN110586758A (en) * | 2019-09-20 | 2019-12-20 | 江苏易实精密科技股份有限公司 | Integrally-formed machining system and machining method for rolled shell |
| CN110701153A (en) * | 2019-09-24 | 2020-01-17 | 李明 | Seamless splicing piece |
| CN212563360U (en) * | 2020-04-29 | 2021-02-19 | 皆可博(苏州)车辆控制系统有限公司 | Brake rocker arm bushing |
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