CN103129637A - Paver track automatic tensioning hydraulic system - Google Patents
Paver track automatic tensioning hydraulic system Download PDFInfo
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- CN103129637A CN103129637A CN 201110377539 CN201110377539A CN103129637A CN 103129637 A CN103129637 A CN 103129637A CN 201110377539 CN201110377539 CN 201110377539 CN 201110377539 A CN201110377539 A CN 201110377539A CN 103129637 A CN103129637 A CN 103129637A
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Abstract
The invention discloses a paver track automatic tensioning hydraulic system which comprises a first oil box, a second oil box, a hydraulic oil pump and a valve block, wherein a first overflow valve, a second overflow valve, a first single-way valve, a second single-way valve, a fist pipe and a second pipe are arranged inside the valve block, an oil inlet of the hydraulic oil pump is communicated with the first oil box, and an oil outlet of the hydraulic oil pump is connected with a third pipe. The third pipe is connected with a fourth pipe and a fifth pipe, the fourth pipe and the fifth pipe are connected with each other in parallel, one end of the fourth pipe is communicated with the third pipe, the other end of the fourth pipe is communicated with a left track tensioning oil cylinder, one end of the fifth pipe is communicated with the third pipe, and the other end of the fifth pipe is communicated with a right track tensioning oil cylinder. One end of the first pipe is communicated with the fourth pipe, the other end of the first pipe is communicated with the second oil box, the first overflow valve is arranged on the first pipe, one end of the second pipe is communicated with the fifth pipe, the other end of the second pipe is communicated with the second oil box, and the second overflow valve is arranged on the second pipe. The paver track automatic tensioning hydraulic system is simple in structure, convenient to use and low in power consumption.
Description
Technical field
The present invention relates to the paver technical field, particularly relate to a kind of paver crawler belt automatic tension hydraulic efficiency pressure system.
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, the crawler belt of paver could be walked after by the turgor cylinder tensioner, at present, Caterpillar automatic tension device of spreading machine has the hydraulic expansion of spring swelling, the pressurize of hydraulic pressure stored energy device and gets the various ways such as hydraulic expansion of oil from the 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 automatic tension hydraulic efficiency pressure system is provided.This paver crawler belt automatic tension hydraulic system structure is simple, easy to use, low in energy consumption, validity is strong, productive costs is low, is convenient to promote the use of.
for achieving the above object, the technical solution used in the present invention is: paver crawler belt automatic tension hydraulic efficiency pressure system, it is characterized in that: comprise fuel tank one, fuel tank two, hydraulic oil pump 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, the oil inlet of described hydraulic oil pump is communicated with fuel tank one, the oil outlet of described hydraulic oil pump is connected with pipeline three, described pipeline three is connected with pipeline parallel with one another four and pipeline five, one end of described pipeline four and pipeline tee joint, 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 and pipeline tee joint, the other end of described pipeline five is communicated with the 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 two, 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 two, described by pass valve two is arranged on pipeline two, described fuel tank one is connected with fuel tank two.
Above-mentioned paver crawler belt automatic tension hydraulic efficiency pressure system, it is characterized in that: shutoff valve one, shutoff valve two, pipeline six and pipeline seven and pipeline eight parallel with one another also are installed in described valve piece, one end of described pipeline six is communicated with fuel tank two, the other end of described pipeline six is communicated with an end of pipeline seven and 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 automatic tension hydraulic efficiency pressure system is characterized in that: be connected with reducing valve on described pipeline three.
Above-mentioned paver crawler belt automatic tension hydraulic efficiency pressure system is characterized in that: on described pipeline three, the throttling joint is installed.
Above-mentioned paver crawler belt automatic tension hydraulic efficiency pressure system, it is characterized in that: the oil inlet of described hydraulic oil pump is connected with fuel tank one by filter.
Above-mentioned paver crawler belt automatic tension hydraulic efficiency pressure system, it is characterized in that: described hydraulic oil pump is constant pressure variable displacement pump.
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, the present invention is by arranging fuel tank one, fuel tank two, hydraulic oil pump, by pass valve one, by pass valve two, check valve one, check valve two, pipeline one and pipeline two, hydraulic oil pump provides pressure oil, and respectively pressure oil is supplied with the turgor cylinder of left and right crawler belt by pipeline four and pipeline five, by pass valve one and by pass valve two have limited the maximum working pressure of turgor cylinder simultaneously, continue auto-supply, really realized crawler belt automatic hydraulic tensioner, result of use is good, long service life.
3, the present invention is by arranging shutoff valve one, shutoff valve two, pipeline six and pipeline seven and pipeline eight parallel with one another; shutoff valve one and shutoff valve two are in normally off; so that when this hydraulic efficiency pressure system is shut down or is broken down; by opening shutoff valve one and shutoff valve two, the pressure oil of five li of turgor cylinder and pipeline four and pipelines is recycled in fuel tank two, has facilitated maintenance.
4, of the present inventionly realize that cost is low, 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 is easy to use, and is low in energy consumption, and validity is strong, and productive costs is low, is convenient to promote the use of.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is integral structure schematic diagram of the present invention.
Description of reference numerals:
1-fuel tank one; The 2-filter; The 3-hydraulic oil pump;
The 4-reducing valve; 5-pipeline three; 6-fuel tank two;
7-pipeline six; 8-valve piece; 9-pipeline two;
10-by pass valve two; 11-pipeline five; 12-right-hand track chiain turgor cylinder;
The left track tensioning oil cylinder of 13-; 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.
The specific embodiment
a kind of paver crawler belt automatic tension hydraulic efficiency pressure system as shown in Figure 1, comprise fuel tank 1, fuel tank 26, hydraulic oil pump 3 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, the oil inlet of described hydraulic oil pump 3 is communicated with fuel tank 1, the oil outlet of described hydraulic oil pump 3 is connected with pipeline 35, described pipeline 35 is connected with pipeline parallel with one another 4 14 and pipeline 5 11, one end of described pipeline 4 14 is communicated with pipeline 35, 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 35, 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 26, 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 26, described by pass valve 2 10 is arranged on pipeline 29, described fuel tank 1 is connected with fuel tank 26.The present invention is by arranging fuel tank 1, fuel tank 26, hydraulic oil pump 3, by pass valve 1, by pass valve 2 10, check valve 1, check valve 2 17, pipeline 1 and pipeline 29, hydraulic oil pump 3 provides pressure oil, and respectively pressure oil is supplied with left track tensioning oil cylinder 13 and right-hand track chiain turgor cylinder 12 by pipeline 4 14 and pipeline 5 11, by pass valve 1 and by pass valve 2 10 have limited the maximum working pressure of turgor cylinder simultaneously, continue auto-supply, really realized crawler belt automatic hydraulic tensioner, result of use is good, long service life.
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 also are installed in described valve piece 8, one end of described pipeline 67 is communicated with fuel tank 26, the other end of described pipeline 67 is communicated with an end of pipeline 7 20 and 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.By shutoff valve 1, shutoff valve 2 16, pipeline 67 and pipeline 7 20 and pipeline 8 15 parallel with one another are set; shutoff valve 1 and shutoff valve 2 16 are in normally off; so that when this hydraulic efficiency pressure system is shut down or is broken down; by opening shutoff valve 1 and shutoff valve 2 16, the pressure oil of 5 11 li of turgor cylinder and pipeline 4 14 and pipelines is recycled in fuel tank 26, has facilitated maintenance.
As shown in Figure 1, be connected with reducing valve 4 on described pipeline 35, get oil and be decompressed to 6.9bar through reducing valve 4 from the pressure hydraulic fluid port of hydraulic oil pump 3, as the pressure oil-source of crawler belt automatic tension.On described pipeline 35, throttling joint 23 is installed, 23 buffer actions of throttling joint.The oil inlet of described hydraulic oil pump 3 is connected with fuel tank 1 by filter 2.Described hydraulic oil pump 3 is constant pressure variable displacement pump.
The above; it is only preferred embodiment of the present invention; be not that the present invention is imposed any restrictions, every according to the technology of the present invention essence to any simple modification, change and equivalent structure transformation that above embodiment does, all still belong in the protection domain of technical solution of the present invention.
Claims (6)
1. paver crawler belt automatic tension hydraulic efficiency pressure system, it is characterized in that: comprise fuel tank one (1), fuel tank two (6), hydraulic oil pump (3) 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), the oil inlet of described hydraulic oil pump (3) is communicated with fuel tank one (1), the oil outlet of described hydraulic oil pump (3) is connected with pipeline three (5), described pipeline three (5) is connected with pipeline parallel with one another four (14) and pipeline five (11), one end of described pipeline four (14) is communicated with pipeline three (5), 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 three (5), 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 two (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 two (6), described by pass valve two (10) is arranged on pipeline two (9), described fuel tank one (1) is connected with fuel tank two (6).
2. paver crawler belt automatic tension hydraulic efficiency pressure system according to claim 1, it is characterized in that: shutoff valve one (18) also is 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 two (6), the other end of described pipeline six (7) is communicated with an end of pipeline seven (20) and 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 automatic tension hydraulic efficiency pressure system according to claim 1 and 2, is characterized in that: be connected with reducing valve (4) on described pipeline three (5).
4. paver crawler belt automatic tension hydraulic efficiency pressure system according to claim 1 and 2, is characterized in that: on described pipeline three (5), throttling joint (23) is installed.
5. paver crawler belt automatic tension hydraulic efficiency pressure system according to claim 1 and 2, it is characterized in that: the oil inlet of described hydraulic oil pump (3) is connected with fuel tank one (1) by filter (2).
6. paver crawler belt automatic tension hydraulic efficiency pressure system according to claim 1 and 2, it is characterized in that: described hydraulic oil pump (3) is constant pressure variable displacement pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110377539 CN103129637A (en) | 2011-11-24 | 2011-11-24 | Paver track automatic tensioning hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110377539 CN103129637A (en) | 2011-11-24 | 2011-11-24 | Paver track automatic tensioning hydraulic system |
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| Publication Number | Publication Date |
|---|---|
| CN103129637A true CN103129637A (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110377539 Pending CN103129637A (en) | 2011-11-24 | 2011-11-24 | Paver track automatic tensioning hydraulic system |
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| CN (1) | CN103129637A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454691A (en) * | 2013-09-25 | 2015-03-25 | 陕西中大机械集团有限责任公司 | Hydraulic circuit used for controlling spiral lifting oil cylinder and track tensioning oil cylinders of paving machine |
-
2011
- 2011-11-24 CN CN 201110377539 patent/CN103129637A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454691A (en) * | 2013-09-25 | 2015-03-25 | 陕西中大机械集团有限责任公司 | Hydraulic circuit used for controlling spiral lifting oil cylinder and track tensioning oil cylinders of paving machine |
| CN104454691B (en) * | 2013-09-25 | 2018-07-06 | 陕西中大机械集团有限责任公司 | Paver screw lift cylinder and track tensioning oil cylinder control hydraulic circuit |
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Application publication date: 20130605 |