CN212202462U - Composite bushing for gear pump shaft end - Google Patents
Composite bushing for gear pump shaft end Download PDFInfo
- Publication number
- CN212202462U CN212202462U CN202020849808.8U CN202020849808U CN212202462U CN 212202462 U CN212202462 U CN 212202462U CN 202020849808 U CN202020849808 U CN 202020849808U CN 212202462 U CN212202462 U CN 212202462U
- Authority
- CN
- China
- Prior art keywords
- bushing
- gear pump
- tin bronze
- layer
- bronze powder
- 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.)
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- 239000002131 composite material Substances 0.000 title claims abstract description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 28
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 16
- 239000000203 mixture Substances 0.000 claims abstract description 11
- -1 tetrafluoroethylene iron oxide Chemical compound 0.000 claims abstract description 11
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 239000000758 substrate Substances 0.000 claims abstract description 4
- 150000001875 compounds Chemical class 0.000 claims abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005245 sintering Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Images
Landscapes
- Rotary Pumps (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The utility model discloses a gear pump is compound bush for axle head mainly relates to gear pump technical field. The wear-resistant metal bushing comprises an annular bushing base body, and a layer of metal wear-resistant material is sintered on the inner annular surface of the bushing base body. The metal wear-resistant material comprises a mixture of spherical tin bronze powder and tetrafluoroethylene iron oxide red; the inner wall of the lining substrate is firstly sintered with a layer of spherical tin bronze powder, and then a layer of tetrafluoroethylene iron oxide red mixture is sintered outside the spherical tin bronze powder. The beneficial effects of the utility model reside in that: it adopts a composite bush to replace bearing, and composite bush is the tubular structure, and the diameter is less than bearing outer lane diameter, and the order sets up the axle box of very small diameter can, and the composite bush base member is the steel material moreover, and the inner wall sinters one deck wear-resisting material, sinters one deck spherical tin bronze powder earlier promptly, then sinters one deck tetrafluoroethylene iron oxide red mixture outside spherical tin bronze powder layer again, strengthens its wearability, and low price reduces the cost of manufacture of gear pump moreover.
Description
Technical Field
The utility model relates to a gear pump technical field specifically is gear pump is composite bushing for axle head.
Background
In the prior art, the shaft ends on both sides of a driving gear shaft and the shaft ends on both sides of a driven gear shaft of the gear pump are matched and connected with shaft grooves on a bottom cover and a top cover by adopting needle bearings. Due to the existence of the needle roller bearings, the diameters of the shaft grooves on the bottom cover and the top cover are large, the comprehensive price of the four needle roller bearings is high, and the manufacturing cost of the gear pump is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a gear pump is composite bushing for axle head, it adopts a composite bushing to replace bearing, composite bushing is the tubular structure, the diameter is less than bearing outer lane diameter, the order set up very small diameter the axial trough can, and the composite bushing base member is the steel material, inner wall sintering one deck wear-resistant material, sinter the spherical tin bronze powder of one deck earlier promptly, then sinter the one deck tetrafluoroethylene iron-red mixture outside spherical tin bronze powder layer again, strengthen its wearability, and low price reduces the cost of manufacture of gear pump.
The utility model discloses a realize above-mentioned purpose, realize through following technical scheme:
the composite bushing for the shaft end of the gear pump comprises an annular bushing base body, and a layer of metal wear-resistant material is sintered on the inner annular surface of the bushing base body.
The metal wear-resistant material comprises a mixture of spherical tin bronze powder and tetrafluoroethylene iron oxide red; the inner wall of the lining substrate is firstly sintered with a layer of spherical tin bronze powder, and then a layer of tetrafluoroethylene iron oxide red mixture is sintered outside the spherical tin bronze powder.
And sintering a layer of copper powder on the outer wall of the lining base body.
An oil groove is formed in the inner wall of the bushing base body along the axial direction.
The inner diameter of the lining base body is 10-12 threads larger than the shaft diameter of the gear shaft.
Contrast prior art, the beneficial effects of the utility model reside in that:
1. this device adopts a composite bushing to replace bearing, and composite bushing is the tubular structure, and the diameter is less than bearing outer lane diameter, and the order set up very small diameter the axle box can, and the composite bushing base member is the steel material moreover, inner wall sintering one deck wear-resistant material, sinters the spherical tin bronze powder of one deck earlier promptly, then sinters the red mixture of one deck tetrafluoroethylene iron outside spherical tin bronze powder layer again, strengthens its wearability, and low price reduces the cost of manufacture of gear pump moreover.
2. The outer wall of the bushing base body is sintered with a layer of copper powder, the copper powder is soft, and the bushing base body can play a role in lubricating and reducing abrasion when being pressed into the shaft groove in an interference fit mode, so that the bushing base body can be pressed into the shaft groove more conveniently.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of the three-dimensional structure of the present invention.
FIG. 3 is a schematic structural diagram of a bottom cover of the gear pump.
Reference numerals shown in the drawings:
1. a bushing base; 2. a metallic wear resistant material; 3. spherical tin bronze powder; 4. a tetrafluoroethylene iron oxide red mixture; 5. copper powder; 6. a shaft groove; 7. an oil groove.
Detailed Description
The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope defined in the present application.
Gear pump is compound bush for axle head, the major structure includes the annular bush base member of steel material preparation, annular sintering one deck wear-resistant material in the bush base member. The wear-resistant material is as follows: the spherical tin bronze powder layer is sintered firstly, and then the tetrafluoroethylene iron red mixture layer is sintered outside the spherical tin bronze powder layer, so that the wear resistance of the gear pump is enhanced, the price is low, and the manufacturing cost of the gear pump is reduced. The thickness of the lining base body is 2mm, the inner wall of the lining base body is in clearance fit with the shaft body, and the inner diameter of the lining base body is 10-12 threads larger than the diameter of the shaft. The outer diameter of the bushing base body is in interference fit with the shaft groove. The outer wall of the bushing base body is sintered with a layer of copper powder, the copper powder is soft, and the bushing base body can play a role in lubricating and reducing abrasion when being pressed into the shaft groove in an interference fit mode, so that the bushing base body can be pressed into the shaft groove more conveniently. The inner wall of the bushing base body 1 is provided with an oil groove 7 along the axial direction, and oil in the gear pump can permeate along the oil groove 7, so that the gear shaft can play a role in lubrication in the rotating process.
The composite bushing is adopted to replace a needle bearing, the composite bushing is of a tubular structure, the diameter of the composite bushing is smaller than that of an outer ring of the needle bearing, and only a shaft groove with a small diameter needs to be formed.
Claims (5)
1. Compound bush is used to gear pump axle head, its characterized in that: the wear-resistant metal bushing comprises an annular bushing base body (1), and a layer of metal wear-resistant material (2) is sintered on the inner annular surface of the bushing base body (1).
2. The composite bushing for the shaft end of the gear pump as claimed in claim 1, wherein: the metal wear-resistant material (2) comprises spherical tin bronze powder (3) and a tetrafluoroethylene iron oxide red mixture (4); a layer of spherical tin bronze powder (3) is sintered on the inner wall of the bushing substrate (1), and then a layer of tetrafluoroethylene iron oxide red mixture (4) is sintered outside the spherical tin bronze powder (3).
3. The composite bushing for the shaft end of the gear pump as claimed in claim 1, wherein: and a layer of copper powder (5) is sintered on the outer wall of the bushing substrate (1).
4. The composite bushing for the shaft end of the gear pump as claimed in claim 1, wherein: an oil groove (7) is formed in the inner wall of the bushing base body (1) along the axial direction.
5. The composite bushing for the shaft end of the gear pump as claimed in claim 1, wherein: the inner diameter of the bushing base body (1) is 10-12 threads larger than the shaft diameter of the gear shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020849808.8U CN212202462U (en) | 2020-05-20 | 2020-05-20 | Composite bushing for gear pump shaft end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020849808.8U CN212202462U (en) | 2020-05-20 | 2020-05-20 | Composite bushing for gear pump shaft end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212202462U true CN212202462U (en) | 2020-12-22 |
Family
ID=73817105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020849808.8U Active CN212202462U (en) | 2020-05-20 | 2020-05-20 | Composite bushing for gear pump shaft end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212202462U (en) |
-
2020
- 2020-05-20 CN CN202020849808.8U patent/CN212202462U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240315 Address after: No. 999 Fengshou Second Road, Yunmenshan Street, Qingzhou City, Weifang City, Shandong Province, 262550 Patentee after: Qingzhou Qingyun Dingguan Hydraulic Technology Co.,Ltd. Country or region after: China Address before: No.41 qianzhuangzi village, Wangfen Town, Qingzhou City, Weifang City, Shandong Province 262500 Patentee before: Zhu Qirui Country or region before: China |
|
| TR01 | Transfer of patent right |