CN202347554U - Hydraulic driving device for soil shifter - Google Patents
Hydraulic driving device for soil shifter Download PDFInfo
- Publication number
- CN202347554U CN202347554U CN2011204218214U CN201120421821U CN202347554U CN 202347554 U CN202347554 U CN 202347554U CN 2011204218214 U CN2011204218214 U CN 2011204218214U CN 201120421821 U CN201120421821 U CN 201120421821U CN 202347554 U CN202347554 U CN 202347554U
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- China
- Prior art keywords
- flexible pipe
- connector
- hard tube
- hydraulic pump
- drive device
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Abstract
The utility model discloses a hydraulic driving device for a soil shifter. The hydraulic driving device comprises a hydraulic pump (1), an oil tank (2), a hose (3) and a hard pipe (4), wherein the hydraulic pump (1) is connected with the oil tank (2) through the hose (3) and the hard pipe (4) which are connected with each other; the hose (3) extends horizontally; and the hard pipe (4) extends in a bending manner. The hydraulic driving device has relatively high structural strength; and a phenomenon of oil leakage due to crack of an oil pipe is avoided.
Description
Technical field
The utility model relates to engineering machinery field, particularly, relates to a kind of fluid pressure drive device of bulldozer.
Background technology
In engineering machinery field, particularly bulldozer adopts hydraulic pump as driving element usually, and hydraulic oil is as the medium that transmits pressure, and hydraulic oil generally is stored in the fuel tank, and connects through oil pipe between hydraulic pump and the fuel tank.
The layout of the easy to connect and oil pipe of hydraulic pump 1 and fuel tank 2 and easy for installation adopts flexible flexible pipe as the oil pipe that connects fuel tank and hydraulic pump for ease.As shown in Figure 1; The fluid pressure drive device of the bulldozer of prior art comprises hydraulic pump 1, fuel tank 2 and flexible pipe 3; Hydraulic pump 1 is connected with fuel tank 2 through a flexible pipe 3; And fixing between flexible pipe 3 and the hydraulic pump 1 through coupling welding, between flexible pipe 3 and the fuel tank 1 also the flange through coupling be connected and pass through bolton.Because the relative position relation between hydraulic pump 1 and the fuel tank 2, and dodge other parts around the flexible pipe 3, cause flexible pipe 3 bending extensions and can not the along continuous straight runs installation.
Because the actuator port pressure of hydraulic pump 1 is higher, probably can reach 14MPa, and adopts welding between the coupling of flexible pipe 3 and the hydraulic pump 1, the welding position structural strength is lower.In addition; Flexible pipe 3 bending extensions make to produce that stress is concentrated and oil shock is bigger in the flexible pipe 3, cause in the process of bulldozer work phenomenons such as oil pipe cracking, leakage of oil taking place easily; The weld of coupling and hydraulic pump 1 particularly influences the operate as normal of bulldozer.
The utility model content
The purpose of the utility model provides a kind of fluid pressure drive device of bulldozer, and the structural strength of this fluid pressure drive device is bigger, is difficult for taking place the oil pipe cracking and the phenomenon of leakage of oil.
To achieve these goals; The utility model provides a kind of fluid pressure drive device of bulldozer; Wherein, this fluid pressure drive device comprises hydraulic pump, fuel tank, flexible pipe and hard tube, and said hydraulic pump is connected with said fuel tank with hard tube through the flexible pipe that connects successively; Said flexible pipe horizontal-extending, said hard tube bending extension.
Preferably, said fluid pressure drive device also comprises connector, and an end of said flexible pipe is connected with an end of said hard tube through said connector.
Preferably, said connector is a two-port valve, and this two-port valve has two connectors that are perpendicular to one another, and these two connectors are connected with an end of said flexible pipe and an end of said hard tube respectively accordingly.
Preferably, the other end of said flexible pipe is provided with first connector, this first connector be the Z type and with the welding of said hydraulic pump.
Preferably, the other end of said hard tube is provided with second connector, and this second connector has flange, and the other end of said hard tube is connected with said fuel tank through the flange on second connector.
Through technique scheme, because hydraulic pump is connected through two pipes (being flexible pipe and hard tube) with fuel tank, flexible pipe is set to horizontal-extending; Hard tube is set to bending extension; It is less to make that hydraulic oil that the less flexible pipe of structural strength receives impacts, and the hydraulic oil that receives in the bigger hard tube of structural strength impacts relatively large, thereby has guaranteed the intensity of whole vitta structure; Thereby in the process of using, be not prone to impaired cracking and the phenomenon of leakage of oil has improved the reliability of bulldozer work.In addition, because flexible pipe and hard tube series connection are communicated with hydraulic pump and fuel tank, make the layout of oil pipe be more prone to; Extend more smooth and easy; Reduce the bending of flexible pipe and hard tube, thereby reduce that the oil pipe pressure inside is impacted and stress is concentrated, help improving the bonding strength between hydraulic pump and the fuel tank.
Other feature and advantage of the utility model will partly specify in the specific embodiment subsequently.
Description of drawings
Accompanying drawing is the further understanding that is used to provide the utility model, and constitutes the part of manual, is used to explain the utility model with the following specific embodiment, but does not constitute the restriction to the utility model.In the accompanying drawings:
Fig. 1 is the structural representation of fluid pressure drive device of the bulldozer of prior art; And
Fig. 2 is the structural representation of fluid pressure drive device of bulldozer of the embodiment of the utility model.
Description of reference numerals
1 hydraulic pump, 2 fuel tanks
3 flexible pipes, 4 hard tubes
5 connectors, 6 first connectors
7 second connectors
The specific embodiment
Be elaborated below in conjunction with the specific embodiment of accompanying drawing to the utility model.Should be understood that the specific embodiment described herein only is used for explanation and explains the utility model, is not limited to the utility model.
As shown in Figure 2; The embodiment of the utility model provides a kind of fluid pressure drive device of bulldozer; Wherein, this fluid pressure drive device comprises hydraulic pump 1, fuel tank 2, flexible pipe 3 and hard tube 4, and said hydraulic pump 1 is connected with said fuel tank 2 with hard tube 4 through the flexible pipe 3 that connects successively; Said flexible pipe 3 horizontal-extendings, said hard tube 4 bending extensions.
Because hydraulic pump 1 is connected through two pipes (being flexible pipe 3 and hard tube 4) with fuel tank 2; Flexible pipe 3 is set to horizontal-extending, and hard tube 4 is set to bending extension, and the hydraulic oil that makes the less flexible pipe 3 of structural strength receive impacts less; The hydraulic oil that bears in the bigger hard tube 4 of structural strength impacts relatively large; Thereby guaranteed the intensity of whole vitta structure, thereby in the process of using, be not prone to impaired cracking and the phenomenon of leakage of oil has improved the reliability of bulldozer work.In addition; Because flexible pipe 3 is communicated with hydraulic pump 1 and fuel tank 2 with hard tube 4 series connection; Make the layout of oil pipe be more prone to, extend more smooth and easyly, reduce the bending of flexible pipe 3 and hard tube 4; Concentrate thereby reduce impact of oil pipe pressure inside and stress, help improving the bonding strength between hydraulic pump 1 and the fuel tank 2.
As shown in Figure 2; Flexible pipe 3 and hard tube 4 are set for ease; And reduce the compression shock in the oil pipe, preferably, said connector 5 is a two-port valve; This two-port valve has two connectors that are perpendicular to one another, and these two connectors are connected with an end of said flexible pipe 3 and an end of said hard tube 4 respectively accordingly.Connector 5 adopts the two-port valve of suitable types, and an end of flexible pipe 3 and an end of hard tube 4 directly are assemblied on the connector of two-port valve, has simplified assembly manipulation.Because two connectors of two-port valve are vertical each other, reduced the degree of crook of hard tube 4, thereby reduced the compression shock that hard tube 4 bears, and improved structural strength.
Because flexible pipe 3 is processed by plastics, rubber etc. usually, structural strength is less, can not bear bigger oil pressure.Therefore, in order to improve the structural strength of flexible pipe 3 and hydraulic pump 1 junction, as shown in Figure 2, preferably, the other end of said flexible pipe 3 is provided with first connector 6, and this first connector 6 be the Z type and welds with said hydraulic pump 1.First connector 6 can adopt metal integrally formed, and its structural strength is bigger, and the other end of flexible pipe 3 is connected with hydraulic pump 1 through first connector 6, can bear near the bigger oil pressure actuator port of hydraulic pump 1.And the sweep of flexible pipe 3 is made up of first connector 6, and the stress that also enough bears in the oil pipe is concentrated and compression shock, has improved structural strength.Can adopt CO between the hydraulic pump 1 and first connector 6
2Protection is welded, and further improves the structural strength of weld, avoids vibrating in the bulldozer course of work impaired.
As shown in Figure 2, for ease being connected of hard tube 4 and fuel tank 2, preferably, the other end of said hard tube 4 is provided with second connector 7, and this second connector 7 has flange, and the other end of said hard tube 4 is connected with said fuel tank 2 through the flange on second connector 7.Hard tube 4 and fuel tank 2 are connected through flange, and the flange of second connector 7 fixes through securing member and fuel tank 2, and simple in structure, handled easily has guaranteed connection stability.
More than combine accompanying drawing to describe the preferred implementation of the utility model in detail; But; The utility model is not limited to the detail in the above-mentioned embodiment; In the technical conceive scope of the utility model, can carry out multiple simple variant to the technical scheme of the utility model, these simple variant all belong to the protection domain of the utility model.
Need to prove in addition; Each concrete technical characterictic described in the above-mentioned specific embodiment under reconcilable situation, can make up through any suitable manner; For fear of unnecessary repetition, the utility model is to the explanation no longer separately of various possible compound modes.
In addition, also can carry out combination in any between the various embodiment of the utility model, as long as its thought without prejudice to the utility model, it should be regarded as content disclosed in the utility model equally.
Claims (5)
1. the fluid pressure drive device of a bulldozer; It is characterized in that; This fluid pressure drive device comprises hydraulic pump (1), fuel tank (2), flexible pipe (3) and hard tube (4); Said hydraulic pump (1) is connected said flexible pipe (3) horizontal-extending, said hard tube (4) bending extension through the flexible pipe (3) that connects successively with said fuel tank (2) with hard tube (4).
2. the fluid pressure drive device of bulldozer according to claim 1 is characterized in that, this fluid pressure drive device also comprises connector (5), and an end of said flexible pipe (3) is connected with an end of said hard tube (4) through said connector (5).
3. the fluid pressure drive device of bulldozer according to claim 2; It is characterized in that; Said connector (5) is a two-port valve, and this two-port valve has two connectors that are perpendicular to one another, and these two connectors are connected with an end of said flexible pipe (3) and an end of said hard tube (4) respectively accordingly.
4. according to the fluid pressure drive device of claim 2 or 3 described bulldozers, it is characterized in that the other end of said flexible pipe (3) is provided with first connector (6), this first connector (6) is the Z type and welds with said hydraulic pump (1).
5. according to the fluid pressure drive device of claim 2 or 3 described bulldozers; It is characterized in that; The other end of said hard tube (4) is provided with second connector (7); This second connector (7) has flange, and the other end of said hard tube (4) is connected with said fuel tank (2) through the flange on second connector (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204218214U CN202347554U (en) | 2011-10-31 | 2011-10-31 | Hydraulic driving device for soil shifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204218214U CN202347554U (en) | 2011-10-31 | 2011-10-31 | Hydraulic driving device for soil shifter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202347554U true CN202347554U (en) | 2012-07-25 |
Family
ID=46536566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204218214U Expired - Fee Related CN202347554U (en) | 2011-10-31 | 2011-10-31 | Hydraulic driving device for soil shifter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202347554U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108286539A (en) * | 2018-04-17 | 2018-07-17 | 天地科技股份有限公司 | A kind of coal mining machine hydraulic equipment and coal-mining machine hydraulic system |
-
2011
- 2011-10-31 CN CN2011204218214U patent/CN202347554U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108286539A (en) * | 2018-04-17 | 2018-07-17 | 天地科技股份有限公司 | A kind of coal mining machine hydraulic equipment and coal-mining machine hydraulic system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20161031 |