CN202371110U - Gear of highway and railroad bridge prestress mudjack - Google Patents
Gear of highway and railroad bridge prestress mudjack Download PDFInfo
- Publication number
- CN202371110U CN202371110U CN 201120488161 CN201120488161U CN202371110U CN 202371110 U CN202371110 U CN 202371110U CN 201120488161 CN201120488161 CN 201120488161 CN 201120488161 U CN201120488161 U CN 201120488161U CN 202371110 U CN202371110 U CN 202371110U
- Authority
- CN
- China
- Prior art keywords
- gear
- highway
- cylindrical surface
- mudjack
- positioning 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.)
- Expired - Fee Related
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- Gears, Cams (AREA)
Abstract
The utility model discloses a gear of a highway and railroad bridge prestress mudjack, which comprises a hollow cylindrical gear body, oblique teeth are arranged on the outer cylindrical surface of the gear body, an axial key slot is arranged in the inner cylindrical surface of the gear body, a radial positioning ring slot is further arranged in the inner cylindrical surface of the gear body, the positioning ring slot is mutually communicated with the axial key slot, a wear resistance layer is adhered on the tooth surfaces of the oblique teeth, and the wear resistance layer is made of cobalt-base alloys formed by laser cladding. The gear of the highway and railroad bridge prestress mudjack has a simple structure and is convenient to install and use, the stability of the gear is improved due to the structural design of the positioning ring slot, meanwhile, the service life of the gear is prolonged due to the design of the wear resistance layer, the normal operation of a mudjack pump is guaranteed, and the mud jacking effect is excellent.
Description
Technical field
The utility model relates generally to a kind of highway, railroad bridge is built the apparatus assembly field, relates in particular to the gear of a kind of highway, railroad bridge prestressing force pneumatic mortar machine.
Background technique
Pneumatic mortar machine is mainly used in the bridge soft foundation and handles, and high-pressure rotary-spray is pressed oar, and basic geology changes the pressure oar suddenly under the pile foundation, and oar is pressed in the bridge reparation, reservoir strobe, dam high pressure mud jacking, and bridge outward appearance high pressure water cleans, pile foundation mud jacking, anchor pole mud jacking etc. under the bridge water.Play important effect at highway, railroad bridge mud jacking middle gear, because cement slurry is heavier, pressure is bigger; Adopt existing helical gear, its inner ring be provided with have only keyway to be used for and bearing between fixing, it is just to the single stationary positioned of axially carrying out; The long-term back of using is owing to wearing and tearing; Its poor stability, working life is short, has influenced the proper functioning of mudjack.In addition, gear because the wearing and tearing of its contour surface can cause that transmission is not steady, influences the proper functioning of pneumatic mortar machine in transmission process.
The model utility content
The purpose of the utility model is in order to remedy the deficiency of prior art, a kind of highway, railroad bridge to be provided
The gear of prestressing force pneumatic mortar machine, its long service life can not influence the problems such as proper functioning of mudjack.
The utility model is realized through following technological scheme:
The gear of a kind of highway, railroad bridge prestressing force pneumatic mortar machine; Include the gear mass of open column shape; The external cylindrical surface of gear mass is provided with helical teeth; The inner cylindrical surface of gear mass is provided with axial keyway, it is characterized in that: also be provided with positioning ring groove radially on the inner cylindrical surface of gear mass, mutual UNICOM between said positioning ring groove and the axial keyway; Be attached with wearing layer on the flank of tooth of said helical teeth, said wearing layer is the wearing layer by the cobalt base alloy laser melting coating.
The gear of a kind of highway, railroad bridge prestressing force pneumatic mortar machine is characterized in that: the thickness of said wearing layer is 0.1-2 ㎜.
The utility model is through axial keyway and positioning ring groove on the inner cylindrical surface of hollow cylinder; When making itself and bearing fixing; Carry out both direction and position, avoided using the back more energetically or over a long time and the unsettled imagination occurring, improved the working life of gear at hand.
The processing technology of said wearing layer is simple, and cost is low, can protect the flank of tooth of helical teeth, prolongs its working life.
The utility model has the advantages that:
The utility model is simple in structure, and is easy to install, through the structural design of positioning ring groove, improved its stability, and simultaneously, the design of wearing layer has prolonged the working life of gear, has guaranteed the proper functioning of mudjack, and grouting result is good.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Referring to accompanying drawing.
The gear of a kind of highway, railroad bridge prestressing force pneumatic mortar machine; Include the gear mass 1 of open column shape; The external cylindrical surface of gear mass 1 is provided with helical teeth 2; The inner cylindrical surface of gear mass 1 is provided with axial keyway 3, also is provided with positioning ring groove 4 radially on the inner cylindrical surface of gear mass, mutual UNICOM between said positioning ring groove 4 and the axial keyway 3; Be attached with wearing layer on the flank of tooth of said helical teeth 2, said wearing layer is the wearing layer by the cobalt base alloy laser melting coating.
The thickness of wearing layer is 0.1-2 ㎜.
Claims (2)
1. the gear of a highway, railroad bridge prestressing force pneumatic mortar machine; Include the gear mass of open column shape; The external cylindrical surface of gear mass is provided with helical teeth; The inner cylindrical surface of gear mass is provided with axial keyway, it is characterized in that: also be provided with positioning ring groove radially on the inner cylindrical surface of gear mass, mutual UNICOM between said positioning ring groove and the axial keyway; Be attached with wearing layer on the flank of tooth of said helical teeth, said wearing layer is the wearing layer by the cobalt base alloy laser melting coating.
2. the gear of a kind of highway according to claim 1, railroad bridge prestressing force pneumatic mortar machine is characterized in that: the thickness of said wearing layer is 0.1-2 ㎜.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120488161 CN202371110U (en) | 2011-11-30 | 2011-11-30 | Gear of highway and railroad bridge prestress mudjack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120488161 CN202371110U (en) | 2011-11-30 | 2011-11-30 | Gear of highway and railroad bridge prestress mudjack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202371110U true CN202371110U (en) | 2012-08-08 |
Family
ID=46594814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120488161 Expired - Fee Related CN202371110U (en) | 2011-11-30 | 2011-11-30 | Gear of highway and railroad bridge prestress mudjack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202371110U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307250A (en) * | 2013-06-20 | 2013-09-18 | 徐景丽 | Angular gear |
-
2011
- 2011-11-30 CN CN 201120488161 patent/CN202371110U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307250A (en) * | 2013-06-20 | 2013-09-18 | 徐景丽 | Angular gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120808 Termination date: 20121130 |