CN202320294U - Engineering machine and gas circuit control system thereof - Google Patents
Engineering machine and gas circuit control system thereof Download PDFInfo
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- CN202320294U CN202320294U CN2011205133302U CN201120513330U CN202320294U CN 202320294 U CN202320294 U CN 202320294U CN 2011205133302 U CN2011205133302 U CN 2011205133302U CN 201120513330 U CN201120513330 U CN 201120513330U CN 202320294 U CN202320294 U CN 202320294U
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- air receiver
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- dryer
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- 239000007789 gas Substances 0.000 claims description 37
- 238000010276 construction Methods 0.000 claims description 35
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 239000002912 waste gas Substances 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 206010016807 Fluid retention Diseases 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
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Abstract
The utility model provides an engineering machine tool and gas circuit control system thereof. The air path control system comprises an air pump, a first dryer, a multi-way valve, an air storage cylinder and a one-way valve; the air cylinder comprises a first air cylinder and a second air cylinder; the inlet of the first dryer is connected with the outlet of the air pump, the outlet of the first dryer is connected with the inlet of the multi-way valve, and the outlet of the first dryer is connected with the inlet of the first air cylinder through the one-way valve; the outlet of the first air storage cylinder is connected with a control air port of a gearbox of the engineering machinery and/or a control air port of a clutch; the inlet of the second air cylinder is connected with a part of outlets of the multi-way valve, and the outlet of the second air cylinder is connected with a control air port of a brake unit of the engineering machinery. Because the gearbox and the brake unit respectively use an independent air storage cylinder, the phenomenon of robbing an air source does not exist, and the problem that automatic gear shifting is not smooth or cannot be automatically shifted is avoided.
Description
Technical field
The utility model relates to gas circuit control field, more specifically, relates to a kind of construction machinery and equipment and air-path control system thereof.
Background technology
In the prior art, the chassis of the construction machinery and equipment that most engineering machine manufacture producer produces has all been used and has been adopted the mechanical automatic gearbox that dust inspires confidence in company's production, and this mechanical automatic gearbox is through controlling through dried pressurized air.
Fig. 1 shows the schematic diagram of the air-path control system of construction machinery and equipment of the prior art.As shown in Figure 1, the pressurized air of air pump 1 output gets into multiway valve 3 through dryer 2 dry backs.A part of pressurized air by multiway valve 3 outputs gets into air receiver 4; A part of pressurized air in the air receiver 4 is used to control change speed gear box 5 and power-transfer clutch 6 (especially; Power-transfer clutch and change speed gear box are provided with integratedly), another part pressurized air is connected with the control gas port of brake units 7 through solenoid directional control valve 9 backs.Especially, brake units 7 comprises the waste-gas braking cylinder 72 of driving engine of compression brake cylinder 71 and/or construction machinery and equipment of the driving engine of construction machinery and equipment.
Yet the above-mentioned air-path control system among Fig. 1 has following shortcoming:
(1) there is the phenomenon of grabbing source of the gas in the shared air receiver of change speed gear box and brake units.Therefore, when change speed gear box needs source of the gas, might can not get enough sources of the gas, so that change speed gear box self shifter occurs not smoothly or can't self-shifting fault.
(2) if the user fails in time construction machinery and equipment to be maintained, for example after the maintenance period of regulation, fail in time to change the filter core in the dryer, dryer does not just have desiccation so.Further, have only a dryer in the air-path control system shown in Figure 1, can cause the pressurized air can not be by the problem of all dry.In this case, the moisture in the pressurized air can get in the actr of actr or power-transfer clutch of change speed gear box.After these moisture run up to a certain degree; The problem of actr generation corrosion that can cause actr or the power-transfer clutch of change speed gear box; Maybe can't be thereby the actr that causes actr (particularly gear shifting operator) or the power-transfer clutch of change speed gear box can't carry out self check through self check, also just can't realize self shifter or can't be automatically engage a gear smoothly.In addition, the moisture in the pressurized air also can cause the stuck phenomenon of high and low shift cylinder, and high and low shift can't be switched.
In a word, change speed gear box and power-transfer clutch are all controlled through dried pressurized air, if there is moisture in the pressurized air; Will cause the actr et out of order of change speed gear box; And actr is the part of high added value, if actr damages, can bring very big loss to the user.
The utility model content
The utility model aims to provide a kind of construction machinery and equipment and air-path control system thereof; To solve prior art change speed gear box and the shared air receiver of brake units; There is the phenomenon of grabbing source of the gas, smoothly perhaps can't self-shifting problem thereby cause change speed gear box self shifter to occur.
For solving the problems of the technologies described above, according to an aspect of the utility model, a kind of air-path control system of construction machinery and equipment is provided, comprising: air pump, first dryer, multiway valve, air receiver and check valve; Air receiver comprises first air receiver and second air receiver; The inlet of first dryer is connected with the outlet of air pump, and the outlet of first dryer is connected with the inlet of multiway valve, and the outlet of first dryer is connected with the inlet of first air receiver through check valve; The outlet of first air receiver is connected with the control gas port of the change speed gear box of construction machinery and equipment and/or the control gas port of power-transfer clutch; The inlet of second air receiver is connected with the outlet of the part of multiway valve, and the outlet of second air receiver is connected with the control gas port of the brake units of construction machinery and equipment.
Further, air-path control system also comprises second dryer, and second dryer is serially connected between the check valve and first air receiver.
Further, the outlet of first air receiver comprises first outlet and second outlet, and first outlet is connected with the control gas port of the change speed gear box of construction machinery and equipment, and second outlet is connected with the control gas port of the power-transfer clutch of construction machinery and equipment.
Further, brake units comprises the waste-gas braking cylinder of driving engine of compression brake cylinder and/or construction machinery and equipment of the driving engine of construction machinery and equipment.
Further, the pipeline between the control gas port of the outlet of second air receiver and brake units is provided with solenoid directional control valve.
Further; The number of solenoid directional control valve is two, two solenoid directional control valves are separately positioned on the pipeline between the control gas port of outlet and compression brake cylinder of second air receiver, and the control gas port of the outlet of second air receiver and waste-gas braking cylinder between pipeline on.
Further, be provided with dividing plate in the air receiver, dividing plate is divided into first air receiver and second air receiver with air receiver.
Another aspect according to the utility model; A kind of construction machinery and equipment is provided; Comprise change speed gear box, power-transfer clutch, brake units and the air-path control system that is used to control change speed gear box, power-transfer clutch and brake units, this air-path control system is above-mentioned air-path control system.
Because change speed gear box and brake units are used an independently air receiver separately, therefore, do not have the phenomenon of grabbing source of the gas, smoothly perhaps can't self-shifting problem thereby avoided change speed gear box self shifter to occur.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide the further understanding to the utility model, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:
Fig. 1 has schematically shown the schematic diagram of the air-path control system of construction machinery and equipment of the prior art; And
Fig. 2 has schematically shown the schematic diagram of the air-path control system of the construction machinery and equipment in the utility model.
The specific embodiment
Embodiment to the utility model is elaborated below in conjunction with accompanying drawing, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
As the first aspect of the utility model, a kind of air-path control system of construction machinery and equipment is provided.As shown in Figure 2, this air-path control system comprises air pump 1, dryer 2, multiway valve 3, air receiver 4 and check valve 8.Wherein, dryer 2 comprises first dryer 21; Air receiver 4 comprises first air receiver 41 and second air receiver 42.The inlet of first dryer 21 is connected with the outlet of air pump 1, and the outlet of first dryer 21 is connected with the inlet of multiway valve 3, and the outlet of first dryer 21 is connected with the inlet of first air receiver 41 through check valve 8.The inlet of first air receiver 41 is connected with the outlet of second dryer 22.The outlet of first air receiver 41 is connected with the control gas port of the change speed gear box of construction machinery and equipment 5 and/or the control gas port of power-transfer clutch 6 connects.The inlet of second air receiver 42 is connected with the part outlet of multiway valve 3, and the outlet of second air receiver 42 is connected with the control gas port of the brake units of construction machinery and equipment 7.Preferably, the outlet of first air receiver 41 comprises first outlet and second outlet, and first outlet is connected with the control gas port of the change speed gear box 5 of construction machinery and equipment, and second outlet is connected with the control gas port of the power-transfer clutch 6 of construction machinery and equipment.Because change speed gear box and brake units are used an independently air receiver separately, therefore, do not have the phenomenon of grabbing source of the gas, smoothly perhaps can't self-shifting problem thereby avoided change speed gear box self shifter to occur.
In one embodiment, air-path control system comprises that also second dryer, 22, the second dryers 22 are serially connected between the check valve 8 and first air receiver 41.Owing to also need could get into first air receiver from the gas of first dryer, 21 outputs, therefore, can guarantee to get into the aridity of the gas in first air receiver through second dryer.
Check valve 8 is arranged on the connecting line between the inlet of outlet and second dryer 22 of first dryer 21.Get into the gas in first air receiver 41; Under the effect of check valve 8, the phenomenon that can not occur refluxing, thus guaranteed the isolation of first air receiver and second air receiver; Make between first, second air receiver to be independent of each other, to guarantee the work of change speed gear box, power-transfer clutch.Especially, power-transfer clutch and change speed gear box are provided with integratedly.
Please refer to Fig. 2, by the pressurized air of air pump 1 output through first dryer, 21 back separated into two parts.A part gets in first air receiver 41 through check valve 8 and second dryer, 22 backs successively; And then the outlet through first air receiver 41 is connected with the control gas port of change speed gear box 5 and power-transfer clutch 6 respectively, with the control of realization to change speed gear box 5 and power-transfer clutch 6.After another part gets into multiway valve 3,, get into then in second air receiver 42 by at least one outlet output in the multiway valve 3 (can be used for other machine assembly of dominant project equipment, for example car sedan-chair) by pressurized air of other outlet output of multiway valve 3; Export brake units 7 by the outlet of second air receiver 42 then with dominant project machinery.
It is thus clear that the utility model is that change speed gear box and power-transfer clutch have cooperated an air receiver (i.e. first air receiver) separately, also has been equipped with another air receiver (i.e. second air receiver) for brake units.Like this; On the one hand; Reduced the moisture in the pressurized air that offers change speed gear box and power-transfer clutch, prevented the problem of actr generation corrosion of actr or the power-transfer clutch of change speed gear box effectively, guaranteed that change speed gear box can successfully realize self shifter or engage a gear; Also can avoid the stuck phenomenon of high and low shift cylinder, make the switching of high and low shift smooth.On the other hand, can make change speed gear box and power-transfer clutch no longer with other parts contention source of the gas, thereby the automatic engage a gear or self-shifting that has guaranteed change speed gear box carries out smoothly.
Preferably, the import of first air receiver 41 is arranged on the left side or the right side of first air receiver 41, and first outlet of first air receiver 41 and second outlet are arranged on the upside of first air receiver 41.Import through with first air receiver 41 is separately positioned on different positions with outlet; Can make the water retention of condensing in the pressurized air inside at first air receiver 41; And can directly do not exported to change speed gear box and power-transfer clutch through outlet, promptly first air receiver 41 has played the function of a part of dryer.
Therefore, even the user does not maintain construction machinery and equipment timely, change speed gear box and power-transfer clutch still can remain on good state, therefore reduced to customer requirements, alleviated past-sale service pressure, reduced user's loss.
Preferably, brake units 7 comprises the waste-gas braking cylinder 72 of driving engine of compression brake cylinder 71 and/or construction machinery and equipment of the driving engine of construction machinery and equipment.Control through to compression brake cylinder 71 and waste-gas braking cylinder 72 can make brake more reliable.
Preferably, the pipeline between the control gas port of the outlet of second air receiver 42 and brake units 7 is provided with solenoid directional control valve 9.Further; The number of solenoid directional control valve 9 is two, two solenoid directional control valves 9 are separately positioned on the pipeline between the control gas port of outlet and compression brake cylinder 71 of second air receiver 42, and the control gas port of the outlet of second air receiver 42 and waste-gas braking cylinder 72 between pipeline on.Preferably, solenoid directional control valve 9 is two-position three-way valves.Therefore, through control, just can control above-mentioned brake units easily to solenoid directional control valve 9.
Preferably, be provided with dividing plate in the air receiver 4, this dividing plate is divided into first air receiver 41 and second air receiver 42 with air receiver 4, to form two separate spaces of osed top.An air receiver 4 is separated into two independently air receivers through dividing plate, can cost-cutting, have compact conformation, characteristics easy for installation simultaneously.
Second aspect as the utility model; A kind of construction machinery and equipment is provided; Comprise change speed gear box 5, power-transfer clutch 6, brake units 7 and the air-path control system that is used to control change speed gear box 5, power-transfer clutch 6 and brake units 7, this air-path control system is the air-path control system among above-mentioned each embodiment.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (8)
1. the air-path control system of a construction machinery and equipment is characterized in that, comprising: air pump (1), first dryer (21), multiway valve (3), air receiver (4) and check valve (8); Said air receiver (4) comprises first air receiver (41) and second air receiver (42);
The inlet of said first dryer (21) is connected with the outlet of said air pump (1); The outlet of said first dryer (21) is connected with the inlet of said multiway valve (3), and the outlet of said first dryer (21) is connected with the inlet of said first air receiver (41) through said check valve (8);
The outlet of said first air receiver (41) is connected with the control gas port of the change speed gear box (5) of said construction machinery and equipment and/or the control gas port of power-transfer clutch (6);
The inlet of said second air receiver (42) is connected with the part outlet of said multiway valve (3), and the outlet of said second air receiver (42) is connected with the control gas port of the brake units (7) of said construction machinery and equipment.
2. air-path control system according to claim 1 is characterized in that, said air-path control system also comprises second dryer (22), and said second dryer (22) is serially connected between said check valve (8) and said first air receiver (41).
3. air-path control system according to claim 1; It is characterized in that; The outlet of said first air receiver (41) comprises first outlet and second outlet; Said first outlet is connected with the control gas port of the change speed gear box (5) of said construction machinery and equipment, and said second outlet is connected with the control gas port of the power-transfer clutch (6) of said construction machinery and equipment.
4. air-path control system according to claim 1 is characterized in that, said brake units (7) comprises the waste-gas braking cylinder (72) of driving engine of compression brake cylinder (71) and/or said construction machinery and equipment of the driving engine of said construction machinery and equipment.
5. air-path control system according to claim 4 is characterized in that, the pipeline between the control gas port of the outlet of said second air receiver (42) and said brake units (7) is provided with solenoid directional control valve (9).
6. air-path control system according to claim 5; It is characterized in that; The number of said solenoid directional control valve (9) is two, said two solenoid directional control valves (9) are separately positioned on the pipeline between the control gas port of outlet and said compression brake cylinder (71) of said second air receiver (42), and the control gas port of the outlet of said second air receiver (42) and said waste-gas braking cylinder (72) between pipeline on.
7. according to each described air-path control system among the claim 1-6, it is characterized in that said air receiver is provided with dividing plate in (4), said dividing plate is divided into said first air receiver (41) and said second air receiver (42) with said air receiver (4).
8. construction machinery and equipment; Comprise change speed gear box (5), power-transfer clutch (6), brake units (7) and the air-path control system that is used to control said change speed gear box (5), power-transfer clutch (6) and brake units (7); It is characterized in that said air-path control system is each described air-path control system among the claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205133302U CN202320294U (en) | 2011-12-09 | 2011-12-09 | Engineering machine and gas circuit control system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205133302U CN202320294U (en) | 2011-12-09 | 2011-12-09 | Engineering machine and gas circuit control system thereof |
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| Publication Number | Publication Date |
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| CN202320294U true CN202320294U (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205133302U Expired - Fee Related CN202320294U (en) | 2011-12-09 | 2011-12-09 | Engineering machine and gas circuit control system thereof |
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| Country | Link |
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| CN (1) | CN202320294U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106584912A (en) * | 2016-12-21 | 2017-04-26 | 苏州蓝王机床工具科技有限公司 | Pneumatic system of press machine |
| CN107199915A (en) * | 2017-05-25 | 2017-09-26 | 福建中青汽车技术有限公司 | A kind of pure electric vehicle shifting system |
| CN108058428A (en) * | 2017-12-13 | 2018-05-22 | 山推工程机械股份有限公司 | A kind of compactor cleaning systems |
| CN112252252A (en) * | 2020-09-10 | 2021-01-22 | 长沙中联重科环境产业有限公司 | One-key drainage system of sanitation vehicle and control method thereof |
-
2011
- 2011-12-09 CN CN2011205133302U patent/CN202320294U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106584912A (en) * | 2016-12-21 | 2017-04-26 | 苏州蓝王机床工具科技有限公司 | Pneumatic system of press machine |
| CN106584912B (en) * | 2016-12-21 | 2018-06-08 | 山东公信安全科技有限公司 | A kind of forcing press pneumatic system |
| CN107199915A (en) * | 2017-05-25 | 2017-09-26 | 福建中青汽车技术有限公司 | A kind of pure electric vehicle shifting system |
| CN107199915B (en) * | 2017-05-25 | 2023-05-02 | 福建中青汽车技术有限公司 | Gear shifting system of pure electric vehicle |
| CN108058428A (en) * | 2017-12-13 | 2018-05-22 | 山推工程机械股份有限公司 | A kind of compactor cleaning systems |
| CN108058428B (en) * | 2017-12-13 | 2024-04-05 | 山推工程机械股份有限公司 | Garbage compactor cleaning system |
| CN112252252A (en) * | 2020-09-10 | 2021-01-22 | 长沙中联重科环境产业有限公司 | One-key drainage system of sanitation vehicle and control method thereof |
| CN112252252B (en) * | 2020-09-10 | 2022-04-15 | 长沙中联重科环境产业有限公司 | One-key drainage system of sanitation vehicle and control method thereof |
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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 |
Granted publication date: 20120711 Termination date: 20151209 |
|
| EXPY | Termination of patent right or utility model |