CN219866267U - Dust ring capable of reversely and rapidly releasing pressure for pump truck S valve bearing seat - Google Patents
Dust ring capable of reversely and rapidly releasing pressure for pump truck S valve bearing seat Download PDFInfo
- Publication number
- CN219866267U CN219866267U CN202321243891.4U CN202321243891U CN219866267U CN 219866267 U CN219866267 U CN 219866267U CN 202321243891 U CN202321243891 U CN 202321243891U CN 219866267 U CN219866267 U CN 219866267U
- Authority
- CN
- China
- Prior art keywords
- bearing seat
- dust
- dust ring
- pump truck
- inner ring
- 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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- 239000000428 dust Substances 0.000 title claims abstract description 37
- 238000007790 scraping Methods 0.000 claims description 7
- 230000002441 reversible effect Effects 0.000 claims description 5
- 230000007062 hydrolysis Effects 0.000 claims description 3
- 238000006460 hydrolysis reaction Methods 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 239000004519 grease Substances 0.000 abstract description 17
- 230000001050 lubricating effect Effects 0.000 abstract description 8
- 238000005086 pumping Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000005461 lubrication Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Sealing Of Bearings (AREA)
Abstract
The utility model relates to a dust ring capable of reversely and rapidly relieving pressure for a pump truck S valve bearing seat, which is arranged in the bearing seat and comprises a dust ring body, wherein a plurality of inner ring axial grooves are axially formed in the root part of an inner ring of the dust ring body; the bottom of the inner ring axial groove is arc-shaped. The utility model can not only effectively prevent concrete from entering the bearing seat, but also realize lower lubricating grease back pressure and rapid pressure relief through the inner ring axial groove, thereby ensuring the long-acting use effect of the bearing seat, and ensuring the stability of the S valve and the continuity of the operation of the pumping system.
Description
Technical Field
The utility model belongs to the technical field of concrete pump trucks, and particularly relates to a dust ring capable of reversely and rapidly releasing pressure for a pump truck S valve bearing seat.
Background
The concrete pump truck is a machine for continuously conveying concrete along a pipeline by utilizing pressure, the pumping system is the core of the whole pump truck, and the concrete can be conveyed only if the pumping system works normally. In pumping systems, the distribution valve system determines the continuity of pump truck operation. The distributing valve is connected with the concrete cylinder, the concrete is extruded into the pump pipe by the piston and is continuously pumped out, and the most distributing valve used on the pump truck is an S valve at present.
The S valve needs to swing continuously when working, the end part is provided with a bearing seat, and lubricating of the bearing is carried out by injecting lubricating grease. In order to be able to control the grease very well, it is necessary to mount seals, dust rings and guide rings on the bearing blocks, wherein the sealing rings and the dust rings have the main function of preventing concrete from entering the bearing blocks, while the grease is required to be able to achieve a slight flow, i.e. the pressure of the grease cannot exceed a certain value. After traditional dust ring and sealing member are installed, the lip is towards concrete one side, although the concrete can be resisted better, the grease is unfavorable for flowing in the direction outside the bearing frame, the pressure of the grease can be too big, and then the dust ring and the sealing member are extruded out of the groove, and the whole of the bearing frame is invalid.
Disclosure of Invention
The utility model aims to provide a dust ring capable of reversely and rapidly releasing pressure, which is used for a pump truck S valve bearing seat, so that the reverse and rapid pressure release can be realized, and the back pressure of lubricating grease can be reduced.
In order to achieve the aim, the technical proposal adopted by the utility model is that a dust-proof ring which can reversely and rapidly release pressure is used for a pump truck S valve bearing seat and is arranged in the bearing seat, comprises a dust-proof ring body,
a plurality of inner ring axial grooves are axially formed in the root part of the inner ring of the dust ring body; the bottom of the inner ring axial groove is arc-shaped.
Preferably, the number of the inner ring axial grooves is 6.
Preferably, one side of the inner ring of the dust ring body is provided with a dust scraping lip extending towards the axis.
Preferably, the dust ring body is in interference fit with the bearing seat.
Preferably, the dust ring body is made of hydrolysis-resistant polyurethane.
The dust ring capable of reversely and rapidly relieving pressure is used for the bearing seat of the pump truck S valve, and compared with the prior art, the dust ring has the following advantages:
(1) Through the inner ring axial groove, reverse rapid pressure relief can be realized, the back pressure of lubricating grease is greatly reduced, the lubricating grease is smoothly and uniformly overflowed, the bearing seat is always in a good lubrication state, the stable swing of the S valve is further ensured, and the working continuity of a pumping system is ensured.
(2) The design is simple, the use is easy, and the manufacturing cost is low;
drawings
FIG. 1 is a schematic cross-sectional view of the present utility model;
FIG. 2 is a cross-sectional three-dimensional schematic of the present utility model;
fig. 3 is a schematic installation view of the present utility model.
Detailed Description
The utility model is further described below with reference to the drawings and specific examples.
As shown in fig. 1-2, a pump truck S valve bearing seat uses a dust ring capable of reversely and rapidly releasing pressure, is arranged in a bearing seat 5, comprises a dust ring body 1,
the dust-scraping lip 3 extending towards the axis is arranged on one side of the inner ring of the dust-scraping ring body 1, and is affected by elasticity of materials, and the dust-scraping lip 3 can be tightly attached to the shaft after being installed, so that a good dust-scraping and decontamination effect is achieved;
a plurality of inner ring axial grooves 2 are uniformly formed in the axial direction of the root of the inner ring of the dust ring body 1, and the number of the inner ring axial grooves 2 is preferably 6; the groove bottom of the inner ring axial groove 2 is arc-shaped, wherein the groove bottom of the inner ring axial groove 2 is one side of the inner ring axial groove 2 close to the dust scraping lip 3, the effect of reverse rapid pressure relief is realized, the back pressure of lubricating grease is reduced, the lubricating grease is smooth and uniform and overflows, the bearing seat is always in a good lubrication state, the stable swing of the S valve is further ensured, the working continuity of a pumping system is ensured,
when in use, as shown in fig. 3, the dust ring body 1 is assembled on one side in the bearing seat 5, the axial groove 2 of the inner ring faces the inside of the bearing seat, the outer side of the dust ring body 1 is concrete, when the grease is filled into the bearing seat 5 from the grease filling hole 6, after the grease reaches a certain pressure, the grease passes through the inner shaft seal 4 and then passes through the dust ring 1, the reverse rapid pressure release function is realized, the back pressure of the grease during pressure release can be controlled by optimizing the depth of the axial groove 2 of the inner ring and the radian of the groove bottom, and finally the design requirement of a lubrication system is met,
in this embodiment, the dust ring body 1 is in interference fit with the bearing seat 5, so as to form a good sealing effect, and prevent water from entering the bearing seat from the bottom surface of the groove of the bearing seat 5.
In this embodiment, the material of the dust ring body 1 is hydrolysis-resistant polyurethane, which has very good water resistance and oil resistance, and also has very good wear resistance.
Claims (5)
1. A dust ring which can reversely and rapidly release pressure is used for a bearing seat of a pump truck S valve and is arranged in the bearing seat (5) and comprises a dust ring body (1),
the dustproof ring is characterized in that a plurality of inner ring axial grooves (2) are axially formed in the root part of the inner ring of the dustproof ring body (1); the groove bottom of the inner ring axial groove (2) is arc-shaped.
2. A pump truck S valve bearing housing using a reversible quick pressure relief dust ring according to claim 1, characterized in that the number of inner ring axial grooves (2) is 6.
3. The dust ring capable of reversely and rapidly relieving pressure for the bearing seat of the pump truck S valve according to claim 1, wherein a dust scraping lip (3) extending towards the axis is arranged on one side of the inner ring of the dust ring body (1).
4. A pump truck S valve bearing seat using a reversely quick pressure release dust ring according to claim 1, characterized in that the dust ring body (1) is in interference fit with the bearing seat (5).
5. The dust ring capable of reversely and rapidly relieving pressure for the bearing seat of the pump truck S valve according to claim 1, wherein the dust ring body (1) is made of hydrolysis-resistant polyurethane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321243891.4U CN219866267U (en) | 2023-05-22 | 2023-05-22 | Dust ring capable of reversely and rapidly releasing pressure for pump truck S valve bearing seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321243891.4U CN219866267U (en) | 2023-05-22 | 2023-05-22 | Dust ring capable of reversely and rapidly releasing pressure for pump truck S valve bearing seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219866267U true CN219866267U (en) | 2023-10-20 |
Family
ID=88339575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321243891.4U Active CN219866267U (en) | 2023-05-22 | 2023-05-22 | Dust ring capable of reversely and rapidly releasing pressure for pump truck S valve bearing seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219866267U (en) |
-
2023
- 2023-05-22 CN CN202321243891.4U patent/CN219866267U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |