CN103786804A - Hydraulic tensioning device for caterpillar band of paver - Google Patents
Hydraulic tensioning device for caterpillar band of paver Download PDFInfo
- Publication number
- CN103786804A CN103786804A CN201210430877.5A CN201210430877A CN103786804A CN 103786804 A CN103786804 A CN 103786804A CN 201210430877 A CN201210430877 A CN 201210430877A CN 103786804 A CN103786804 A CN 103786804A
- Authority
- CN
- China
- Prior art keywords
- pipeline
- valve
- hydraulic
- communicated
- paver
- 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
Links
Images
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a hydraulic tensioning device for a caterpillar band of a paver. The tensioning device comprises a hydraulic oil pump, a third pipeline, a ninth pipeline, a hydraulic motor, a reducing valve and a hydraulic tensioning system. The hydraulic oil pump, the third pipeline, the hydraulic motor and the ninth pipeline are sequentially connected to form a closed loop. A shuttle valve is mounted on a tenth pipeline, an oil outlet of the shuttle valve is connected with an oil inlet of the reducing valve, and an oil outlet of the reducing valve is connected with the hydraulic tensioning system which comprises an oil tank and a valve block. A first overflow valve, a second overflow valve, a first check valve, a second check valve, a first pipeline and a second pipeline are mounted in the valve block. A twelfth pipeline is connected with a fourth pipeline and a fifth pipeline which are in parallel connection, one end of the fourth pipeline is communicated with the twelfth pipeline, the other end of the fourth pipeline is communicated with a left caterpillar band tensioning cylinder, one end of the fifth pipeline is communicated with the twelfth pipeline, and the other end of the pipeline fifth is communicated with a right caterpillar band tensioning cylinder. The hydraulic tensioning device for the caterpillar band of the paver is capable of fulfilling an automatic tensioning function effectively with low power consumption.
Description
Technical field
The present invention relates to a kind of hydraulic swelling-up device, particularly relate to a kind of paver crawler belt hydraulic swelling-up device.
Background technology
Paver is a kind of preparation of construction that is mainly used in basic unit and the various material paving operations of surface layer on express highway, and the crawler belt of paver could be walked after by turgor cylinder tensioner.Current paver crawler belt automatic tensioning only device has the hydraulic expansion of spring swelling, the pressurize of hydraulic pressure stored energy device and gets the various ways such as oily hydraulic expansion from closed circuit slippage pump, but its effect is not ideal, reliability is low, has a strong impact on the performance of travelling system of spreader.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency of the prior art, a kind of paver crawler belt hydraulic swelling-up device is provided.This paver crawler belt hydraulic swelling-up device is simple in structure, consumes very miniwatt and just can complete automatic tension function by actv..
For achieving the above object, the technical solution used in the present invention is: paver crawler belt hydraulic swelling-up device, it is characterized in that: comprise hydraulic oil pump, pipeline three, pipeline nine, HM Hydraulic Motor, reducing valve and hydraulic expansion hydraulic efficiency pressure system, described hydraulic oil pump, pipeline three, HM Hydraulic Motor and pipeline nine are connected to form closed circuit in turn, described pipeline three is connected by pipeline ten with pipeline nine, on described pipeline ten, shuttle valve is installed, the oil outlet of described shuttle valve is connected with reducing valve oil inlet by pipeline 11, the oil outlet of described reducing valve is connected with hydraulic expansion hydraulic efficiency pressure system by pipeline 12, described hydraulic expansion hydraulic efficiency pressure system comprises fuel tank and valve piece, in described valve piece, by pass valve one is installed, by pass valve two, check valve one, check valve two, pipeline one and pipeline two, described pipeline 12 is connected with pipeline four and pipeline five parallel with one another, one end of described pipeline four is communicated with pipeline 12, the other end of described pipeline four is communicated with left track tensioning oil cylinder, described check valve one is arranged on pipeline four, one end of described pipeline five is communicated with pipeline 12, the other end of described pipeline five is communicated with right-hand track chiain turgor cylinder, described check valve two is arranged on pipeline five, one end of described pipeline one is communicated with pipeline four, the other end of described pipeline one is communicated with fuel tank, described by pass valve one is arranged on pipeline one, one end of described pipeline two is communicated with pipeline five, the other end of described pipeline two is communicated with fuel tank, described by pass valve two is arranged on pipeline two.
Above-mentioned paver crawler belt hydraulic swelling-up device, it is characterized in that: shutoff valve one, shutoff valve two, pipeline six and pipeline seven and pipeline eight parallel with one another are also installed in described valve piece, one end of described pipeline six is communicated with fuel tank, the other end of described pipeline six is communicated with one end of pipeline seven and one end of pipeline eight, the other end of described pipeline seven is communicated with pipeline four, the other end of described pipeline eight is communicated with pipeline five, described shutoff valve one is arranged on pipeline seven, and described shutoff valve two is arranged on pipeline eight.
Above-mentioned paver crawler belt hydraulic swelling-up device, is characterized in that: on described pipeline 12, throttling joint is installed.
Above-mentioned paver crawler belt hydraulic swelling-up device, is characterized in that: described hydraulic oil pump is shaft orientation plunger variable pump, and described HM Hydraulic Motor is variable-dis-placement motor.
The present invention compared with prior art has the following advantages:
1, of the present invention simple in structure, rationally novel in design, be easy to install.
2, when the present invention uses, directly get high pressure oil from shuttle valve output oil port, supply with right-hand track chiain turgor cylinder and left track tensioning oil cylinder through the post-decompression pressure oil of reducing valve, by pass valve one and by pass valve two limit respectively the maximum working pressure of left track tensioning oil cylinder and right-hand track chiain turgor cylinder simultaneously, continue auto-supply, really realized crawler belt automatic hydraulic tensioner.
3, the present invention, by two by pass valves, two check valves and two shutoff valves are set, plays fuel feeding and pressure restriction and the shutdown drain charge effect respectively of left and right track tensioning oil cylinder.
4, of the present invention to realize cost low, and result of use is good, is convenient to promote the use of.
In sum, the present invention is simple in structure, and rationally novel in design, functional reliability is high, and long service life consumes very miniwatt and just can complete automatic tension function by actv..
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Description of reference numerals:
1-HM Hydraulic Motor; 2-pipeline nine; 3-pipeline ten;
4-hydraulic oil pump; 5-shuttle valve; 6-fuel tank;
7-pipeline six; 8-valve piece; 9-pipeline two;
10-by pass valve two; 11-pipeline five; 12-right-hand track chiain turgor cylinder;
13-left track tensioning oil cylinder; 14-pipeline four; 15-pipeline eight;
16-shutoff valve two; 17-check valve two; 18-shutoff valve one;
19-check valve one; 20-pipeline seven; 21-pipeline one;
22-by pass valve one; 23-throttling joint; 24-pipeline 12;
25-reducing valve; 26-pipeline 11; 27-pipeline three.
The specific embodiment
A kind of paver crawler belt hydraulic swelling-up device as shown in Figure 1, comprise hydraulic oil pump 4, pipeline 3 27, pipeline 92, HM Hydraulic Motor 1, reducing valve 25 and hydraulic expansion hydraulic efficiency pressure system, described hydraulic oil pump 4, pipeline 3 27, HM Hydraulic Motor 1 and pipeline 92 are connected to form closed circuit in turn, described pipeline 3 27 is connected by pipeline 10 with pipeline 92, on described pipeline 10, shuttle valve 5 is installed, the oil outlet of described shuttle valve 5 is connected with reducing valve 25 oil inlets by pipeline 11, the oil outlet of described reducing valve 25 is connected with hydraulic expansion hydraulic efficiency pressure system by pipeline 12, described hydraulic expansion hydraulic efficiency pressure system comprises fuel tank 6 and valve piece 8, in described valve piece 8, by pass valve 1 is installed, by pass valve 2 10, check valve 1, check valve 2 17, pipeline 1 and pipeline 29, described pipeline 12 is connected with pipeline 4 14 and pipeline 5 11 parallel with one another, one end of described pipeline 4 14 is communicated with pipeline 12, the other end of described pipeline 4 14 is communicated with left track tensioning oil cylinder 13, described check valve 1 is arranged on pipeline 4 14, one end of described pipeline 5 11 is communicated with pipeline 12, the other end of described pipeline 5 11 is communicated with right-hand track chiain turgor cylinder 12, described check valve 2 17 is arranged on pipeline 5 11, one end of described pipeline 1 is communicated with pipeline 4 14, the other end of described pipeline 1 is communicated with fuel tank 6, described by pass valve 1 is arranged on pipeline 1, one end of described pipeline 29 is communicated with pipeline 5 11, the other end of described pipeline 29 is communicated with fuel tank 6, described by pass valve 2 10 is arranged on pipeline 29.
As shown in Figure 1, shutoff valve 1, shutoff valve 2 16, pipeline 67 and pipeline 7 20 and pipeline 8 15 parallel with one another are also installed in described valve piece 8, one end of described pipeline 67 is communicated with fuel tank 6, the other end of described pipeline 67 is communicated with one end of pipeline 7 20 and one end of pipeline 8 15, the other end of described pipeline 7 20 is communicated with pipeline 4 14, the other end of described pipeline 8 15 is communicated with pipeline 5 11, described shutoff valve 1 is arranged on pipeline 7 20, and described shutoff valve 2 16 is arranged on pipeline 8 15.On described pipeline 12, throttling joint 23 is installed.Described hydraulic oil pump 4 is shaft orientation plunger variable pump.
In the present embodiment, this paver crawler belt hydraulic swelling-up device is directly got high pressure oil from shuttle valve 5 output oil ports, the pressure oil being decompressed to after 6MPa through reducing valve 25 is supplied with right-hand track chiain turgor cylinder 12 and left track tensioning oil cylinder 13, by pass valve 1 and by pass valve 2 10 limit respectively the maximum working pressure of left track tensioning oil cylinder 13 and right-hand track chiain turgor cylinder 12 simultaneously, continue auto-supply, really realized crawler belt automatic hydraulic tensioner.
The above; it is only preferred embodiment of the present invention; not the present invention is imposed any restrictions, every any simple modification, change and equivalent structure transformation of above embodiment being done according to the technology of the present invention essence, all still belongs in the protection domain of technical solution of the present invention.
Claims (4)
1. paver crawler belt hydraulic swelling-up device, it is characterized in that: comprise hydraulic oil pump (4), pipeline three (27), pipeline nine (2), HM Hydraulic Motor (1), reducing valve (25) and hydraulic expansion hydraulic efficiency pressure system, described hydraulic oil pump (4), pipeline three (27), HM Hydraulic Motor (1) and pipeline nine (2) are connected to form closed circuit in turn, described pipeline three (27) is connected by pipeline ten (3) with pipeline nine (2), on described pipeline ten (3), shuttle valve (5) is installed, the oil outlet of described shuttle valve (5) is connected with reducing valve (25) oil inlet by pipeline ten one (26), the oil outlet of described reducing valve (25) is connected with hydraulic expansion hydraulic efficiency pressure system by pipeline ten two (24), described hydraulic expansion hydraulic efficiency pressure system comprises fuel tank (6) and valve piece (8), by pass valve one (22) is installed in described valve piece (8), by pass valve two (10), check valve one (19), check valve two (17), pipeline one (21) and pipeline two (9), described pipeline ten two (24) is connected with pipeline four (14) and pipeline five (11) parallel with one another, one end of described pipeline four (14) is communicated with pipeline ten two (24), the other end of described pipeline four (14) is communicated with left track tensioning oil cylinder (13), described check valve one (19) is arranged on pipeline four (14), one end of described pipeline five (11) is communicated with pipeline ten two (24), the other end of described pipeline five (11) is communicated with right-hand track chiain turgor cylinder (12), described check valve two (17) is arranged on pipeline five (11), one end of described pipeline one (21) is communicated with pipeline four (14), the other end of described pipeline one (21) is communicated with fuel tank (6), described by pass valve one (22) is arranged on pipeline one (21), one end of described pipeline two (9) is communicated with pipeline five (11), the other end of described pipeline two (9) is communicated with fuel tank (6), described by pass valve two (10) is arranged on pipeline two (9).
2. paver crawler belt hydraulic swelling-up device according to claim 1, it is characterized in that: shutoff valve one (18) is also installed in described valve piece (8), shutoff valve two (16), pipeline six (7) and pipeline seven (20) and pipeline eight (15) parallel with one another, one end of described pipeline six (7) is communicated with fuel tank (6), the other end of described pipeline six (7) is communicated with one end of pipeline seven (20) and one end of pipeline eight (15), the other end of described pipeline seven (20) is communicated with pipeline four (14), the other end of described pipeline eight (15) is communicated with pipeline five (11), described shutoff valve one (18) is arranged on pipeline seven (20), described shutoff valve two (16) is arranged on pipeline eight (15).
3. paver crawler belt hydraulic swelling-up device according to claim 2, is characterized in that: on described pipeline ten two (24), throttling joint (23) is installed.
4. paver crawler belt hydraulic swelling-up device according to claim 3, is characterized in that: described hydraulic oil pump (4) is shaft orientation plunger variable pump, and described HM Hydraulic Motor (1) is variable-dis-placement motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210430877.5A CN103786804A (en) | 2012-11-01 | 2012-11-01 | Hydraulic tensioning device for caterpillar band of paver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210430877.5A CN103786804A (en) | 2012-11-01 | 2012-11-01 | Hydraulic tensioning device for caterpillar band of paver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103786804A true CN103786804A (en) | 2014-05-14 |
Family
ID=50662983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210430877.5A Pending CN103786804A (en) | 2012-11-01 | 2012-11-01 | Hydraulic tensioning device for caterpillar band of paver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103786804A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594567A (en) * | 2019-10-09 | 2019-12-20 | 山东国能实业有限公司 | Oil injection valve for tensioning device |
-
2012
- 2012-11-01 CN CN201210430877.5A patent/CN103786804A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594567A (en) * | 2019-10-09 | 2019-12-20 | 山东国能实业有限公司 | Oil injection valve for tensioning device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108757624B (en) | Differential speed-increasing circuit of oil cylinder overflow valve | |
| GB2489016B (en) | Hybrid electric vehicle cooling circuit and method of cooling | |
| CN204099301U (en) | Hydraulic system and fracturing unit truck | |
| CN202643158U (en) | Constant tension hoisting operation wave compensation device | |
| US20080112818A1 (en) | Auxiliary Energy-Accumulation And Flow-Enhancement Device For Hydraulic System Of Concrete Pump | |
| CN202944459U (en) | Hydraulic tensioning device of paver caterpillar band | |
| CN202017666U (en) | Gas supercharging device | |
| CN103062140A (en) | Hydraulic device on basis of confluence control mode | |
| CN202845491U (en) | Hydraulic control system for belt wrapper tensioning device | |
| CN103786804A (en) | Hydraulic tensioning device for caterpillar band of paver | |
| CN201433948Y (en) | Fluid differential circuit | |
| CN202368704U (en) | Automatic tensioning hydraulic system of crawler of spreading machine | |
| CN103129637A (en) | Paver track automatic tensioning hydraulic system | |
| CN201963620U (en) | Power drive unit of concrete pumping equipment and concrete pumping equipment | |
| CN102650303A (en) | Power-driven device of concrete pumping equipment and concrete pumping equipment | |
| CN201155420Y (en) | Hydroturbine emergency stop device based on cartridge valve | |
| CN203257772U (en) | Hydraulic bulldozer power generation device | |
| CN201598974U (en) | Twin-engine power device of large rotary drilling rig | |
| CN201080591Y (en) | Frequency adjustable road roller open type loop hydraulic vibration system | |
| CN203516255U (en) | Hydraulic loop used for controlling paver stretching and drawing ironing vibration | |
| CN102562166A (en) | Rotary engine driven by compressed air | |
| CN203614513U (en) | Full hydraulic crawler belt type drilling machine air compressor transmission system with motor protection device | |
| CN202991064U (en) | Drive system for concrete wet-blasting trolley and concrete wet-blasting trolley | |
| CN202326527U (en) | Closed hydraulic loop and concrete pumping equipment | |
| KR101024720B1 (en) | Control system of hydraulic pump flow of construction apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140514 |