CN202768541U - Hydraulic oil cooling device and pumping machinery - Google Patents
Hydraulic oil cooling device and pumping machinery Download PDFInfo
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- CN202768541U CN202768541U CN 201220425786 CN201220425786U CN202768541U CN 202768541 U CN202768541 U CN 202768541U CN 201220425786 CN201220425786 CN 201220425786 CN 201220425786 U CN201220425786 U CN 201220425786U CN 202768541 U CN202768541 U CN 202768541U
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Abstract
The utility model discloses a hydraulic oil cooling device and pumping machinery. The hydraulic oil cooling device is suitable for the pumping machinery. The pumping machinery comprises a hydraulic system and a water tank. The hydraulic oil cooling device comprises a first oil channel and the water tank, wherein hydraulic oil of the first oil channel is from the hydraulic system, a heat exchange pipeline is positioned in the water tank, and the hydraulic oil of the first oil channel can flow through the heat exchange pipeline. The hydraulic of the hydraulic system can be effectively cooled without adding a water cooling device so as to improve resource utilization rate. In addition, in a using process, the water cooling function can be used preferentially or the water cooling and air cooling functions are utilized together according to requirements. Compared with the prior art, the problem that an air cooling device is prone to be damaged when being used for cooling hydraulic oil for a work system of a main pump is solved. In addition, an appropriate three-way flow valve and a corresponding temperature control system can be used to achieve automatic control on oil temperature.
Description
Technical field
The utility model relates to technical field of engineering machinery, particularly a kind of hydraulic oil cooling device and pumping machine.
Background technique
In engineering machinery, can the oil temperature of hydraulic system be to determine complete machine operating efficiency, operating life and the key factor that work, and usually under the situation, the oil temperature of hydraulic system should be controlled in 55 ℃ to 70 ℃ the scope.Concrete pumping equipment utilizes pressure to realize concrete conveying, and its hydraulic system is generally the high-pressure high-flow system.Concrete pumping equipment is in the heavy load running, and its hydraulic system will produce a large amount of heats, if do not take cooling measure or radiating effect undesirable, will cause following problem:
(1) after the temperature of working liquid body raises, the viscosity of working liquid body is descended, the leakage of pump increases, and the actual flow of pump descends to some extent; (2) Sealing of hydraulic systems and components is at high temperature rotten, and elasticity sex change ability reduces, and sealability is reduced, even seal failure, and causing leaking increases; (3) when the material difference of the spool of hydraulic valve piece and valve body or thermal expansion coefficient not simultaneously, easily because the spool stuck phenomenon appears in thermal expansion, cause concrete pump not work between spool and the valve body; When (4) viscosity of working liquid body descends, the greasy property of working liquid body is reduced, the wearing and tearing of hydraulic element are accelerated, and have accelerated the wear out failure of element, have shortened the working life of element.
Therefore, in order to avoid the generation of above-mentioned phenomenon as far as possible, after using the concrete pumping equipment certain hour, have to stop, make system's cooling, thereby reduced the Homes Using TV of concrete pumping equipment, affected construction speed.
Based on this, a kind of hydraulic oil cooling system for concrete pumping equipment is provided in the prior art, this hydraulic oil cooling system is comprised of air cooling equipment and water cooling plant, be respectively applied to control the hydraulic oil oil temperature that main pump send work system and bypass work system, but in this scheme, owing to additionally increased air cooling equipment and water cooling plant, both increased cost, also increased the weight of complete machine; In addition, water cooling plant needs external cooling water when work, do not having the rare place of water source or water resources, uses very inconvenience; In addition, the oil temperature of main pump work system is dispelled the heat by air cooling equipment, and the compression shock of main pump work system is large, and the air cooling equipment voltage endurance capability is low, damages easily.
The model utility content
In view of this, the utility model aims to provide a kind of hydraulic oil cooling device and pumping machine, need not additionally to increase water cooling plant, the own water tank that takes full advantage of on the pumping machine cools off hydraulic oil, improved resource utilization, in addition, this water tank also can cool off the hydraulic oil of main pump work system, has solved the available technology adopting air cooling equipment and has cooled off separately the hydraulic oil of main pump work system and hold flimsy problem.
On the one hand, the utility model provides a kind of hydraulic oil cooling device, described hydraulic oil cooling device is used for pumping machine, described pumping machine has hydraulic system and water tank, described hydraulic oil cooling device comprises the first oil circuit and described water tank, the hydraulic oil of described the first oil circuit comes from described hydraulic system, is provided with heat exchange duct in the described water tank, the hydraulic oil of described the first oil circuit described heat exchange duct of flowing through.
Further, described hydraulic oil cooling device also comprises the second oil circuit and air cooling equipment, the hydraulic oil of described the second oil circuit described air cooling equipment of flowing through.
Further, the oil outlet of described heat exchange duct and described air cooling equipment leads to fuel tank, described hydraulic oil cooling device also comprises the first bleed off circuit and the first three-way flowrate valve, the entry end of described the first bleed off circuit is connected on described the first oil circuit by described the first three-way flowrate valve, and the outlet end of described the first bleed off circuit leads to fuel tank.
Further, the oil outlet of described heat exchange duct and described air cooling equipment leads to fuel tank, described hydraulic oil cooling device also comprises the second bleed off circuit and the second three-way flowrate valve, the entry end of described the second bleed off circuit is connected on described the second oil circuit by described the second three-way flowrate valve, and the outlet end of described the second bleed off circuit leads to fuel tank.
Further, described hydraulic oil cooling device comprises the 3rd oil circuit and the 3rd three-way flowrate valve, the outlet end of described the 3rd oil circuit is connected to the entry end of described the 3rd three-way flowrate valve, and two outlet end of described the 3rd three-way flowrate valve are connected to respectively the entry end of described the first oil circuit and described the second oil circuit.
On the other hand, the utility model also provides a kind of pumping machine, and described pumping machine is provided with above-mentioned each described hydraulic oil cooling device.
Further, described pumping machine is concrete mixer.
A kind of hydraulic oil cooling device that the utility model provides in use, hydraulic oil from the pumping machine hydraulic system flows to the first oil circuit, and the heat exchange duct in the own water tank of the pumping machine of flowing through, thereby realized that the hydraulic oil to hydraulic system carries out effective cooling under the condition that does not additionally increase water cooling plant, improved resource utilization; In addition, in a kind of more specifically scheme, also increased air-cooling function, in use, preferential use water cooling function be can control as required or water-cooled and air-cooling function used simultaneously, compared with prior art, avoided air cooling equipment to hold flimsy problem during from the hydraulic oil of main pump work system in cooling; In addition, more specifically in the scheme, also increase corresponding three-way flowrate valve and bleed off circuit at another kind, by selecting suitable three-way flowrate valve and disposing corresponding temperature control system, can realize the automatic control of oil temperature.
A kind of pumping machine that the utility model provides is provided with above-mentioned hydraulic oil cooling device, because above-mentioned hydraulic oil cooling device has above-mentioned technique effect, this pumping machine also has corresponding technique effect.
Description of drawings
The accompanying drawing that consists of a part of the present utility model is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
The structural representation of a kind of hydraulic oil cooling device that Fig. 1 provides for the utility model embodiment one;
The structural representation of a kind of hydraulic oil cooling device that Fig. 2 provides for the utility model embodiment two;
The structural representation of a kind of hydraulic oil cooling device that Fig. 3 provides for the utility model embodiment three.
Embodiment
Should be pointed out that in this part that to the description of concrete structure and description order only be explanation to specific embodiment, should not be considered as that protection domain of the present utility model is had any restriction.In addition, in the situation of not conflicting, embodiment and the feature among the embodiment in the utility model can make up mutually.Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Embodiment one
As shown in Figure 1, this embodiment's hydraulic oil cooling device is used for concrete mixer, be provided with hydraulic system, water tank 4 and fuel tank 1 on the described concrete mixer, this hydraulic oil cooling device mainly comprises fuel tank 1, air cooling equipment 2, the first three-way flowrate valve 3, water tank 4 and the first oil circuit 01, the second oil circuit 02 and the first bleed off circuit 03 etc., wherein, water tank 4 is the own water tank on the concrete mixer.
Be provided with heat exchange duct in the water tank 4, this heat exchange duct wriggles and arranges, the entry end of the first oil circuit 01 is connected to the hydraulic system (scheming not shown) of concrete mixer, and the outlet end of the first oil circuit 01 is connected to the entry end of heat exchange duct, and the outlet end of heat exchange duct leads to fuel tank 1; The entry end of the first bleed off circuit 03 is connected on the first oil circuit 01 by the first three-way flowrate valve 3, and outlet end leads to fuel tank 1.
The entry end of the second oil circuit 02 is connected to the hydraulic system of concrete mixer, and the outlet end of the second oil circuit 02 is connected to the entry end of air cooling equipment 2, and the outlet end of air cooling equipment 2 leads to fuel tank 1.
In use, a part of hydraulic oil of hydraulic system flows to the first oil circuit 01, then by the heat exchange duct in the water tank 4, carry out heat exchange with water in the water tank 4 and dispel the heat, then flow back to fuel tank 1, another part hydraulic oil of hydraulic system flows to the first oil circuit 02, then flows back to fuel tank 1 after air cooling equipment 2 coolings; In order to guarantee the cooling effect of water tank 4, control by the fluid amount that 3 pairs of the first oil circuits 01 of the first three-way flowrate valve enter in the water tank 4, can make as required the part of the hydraulic oil that enters the first oil circuit 01 directly flow back to fuel tank 1 by the first bleed off circuit 03.
In specific implementation process; hydraulic system can link to each other with the entry end of the first oil circuit 01 and the second oil circuit 02 by corresponding selector valve; it is preferential by the first oil circuit 01 when oil temperature is higher; 4 pairs of hydraulic oil of water tank carry out water cooling; and hydraulic oil temperature effectively can be controlled at normal level by controlling the first three-way flowrate valve 3; at this moment; can not start air cooling system; when independent water cooling system can't effectively be controlled the oil temperature of hydraulic system; make a part of hydraulic oil of hydraulic system flow to the second oil circuit 02; and 2 pairs of these hydraulic oil of startup air cooling equipment cool off; thereby effectively the control system oil temperature is protected hydraulic system.
In above-described embodiment, also can omit as required the first three-way flowrate valve 3 and the first bleed off circuit 03, and all hydraulic oil in the first oil circuit 01 is all cooled off by water tank 4, further, also can directly not lead to fuel tank 1 through water tank 4 or through air cooling equipment 4 cooled hydraulic oil, but be back in the hydraulic system.
Embodiment two
As shown in Figure 2, this embodiment's hydraulic oil cooling device comprises embodiment's one described fuel tank 1, air cooling equipment 2, water tank 4, the first oil circuit 01 and the second oil circuit 02, be provided with heat exchange duct in the water tank 4, embodiment two is with embodiment one main difference part, comprise that also the second bleed off circuit 04 and the second three-way flowrate valve 5, the second bleed off circuits 04 are connected on the second oil circuit 02 by the second three-way flowrate valve 5.
In use, a part of hydraulic oil of hydraulic system flows to the first oil circuit 01, then by the heat exchange duct in the water tank 4, carry out heat exchange with water in the water tank 4 and dispel the heat, then flow back to fuel tank 1, another part hydraulic oil of hydraulic system flows to the first oil circuit 02, then flows back to fuel tank 1 after air cooling equipment 2 coolings; In order to guarantee the cooling effect of air cooling equipment 2, control by the fluid amount that 5 pairs of the second oil circuits 02 of the second three-way flowrate valve enter in the air cooling equipment 2, namely can make as required the part of the hydraulic oil that enters the second oil circuit 02 directly flow back to fuel tank 1 by the second bleed off circuit 04.
In specific implementation process; hydraulic system can link to each other with the entry end of the first oil circuit 01 and the second oil circuit 02 by corresponding selector valve; it is preferential by the first oil circuit 01 when oil temperature is higher; 4 pairs of hydraulic oil of water tank carry out water cooling; thereby hydraulic oil temperature effectively is controlled at normal level; at this moment; can not start air cooling system; when independent water cooling system can't effectively be controlled the oil temperature of hydraulic system; make a part of hydraulic oil of hydraulic system flow to the second oil circuit 02; and 2 pairs of these hydraulic oil of startup air cooling equipment cool off; in order to guarantee the cooling effect of air cooling equipment 2; can control the fluid amount that enters in the air cooling equipment 2 by the second three-way flowrate valve 5; so just, effective control system oil temperature, the protection hydraulic system.
Embodiment three
As shown in Figure 3, this embodiment's hydraulic oil cooling device comprises embodiment's two described fuel tanks 1, air cooling equipment 2, water tank 4, the first oil circuit 01 and the second oil circuit 02, be provided with heat exchange duct in the water tank 4, embodiment three is with embodiment two main difference part, also comprise the 3rd oil circuit 05 and the 3rd three-way flowrate valve 6, wherein, the entry end of the 3rd oil circuit 05 is connected to hydraulic system, the outlet end of the 3rd oil circuit 05 is connected to the entry end of the 3rd three-way flowrate valve 6, and two outlet end of the 3rd three-way flowrate valve 6 are connected to respectively the entry end of the first oil circuit 01 and the second oil circuit 02.
In use; the hydraulic oil of hydraulic system flows to the 3rd oil circuit 03; and can control the oil mass state of the first oil circuit 01 and the second oil circuit 02 by controlling the 3rd three-way flowrate valve; and then control is by water cooling system and the oil mass by air cooling system; so that cooling effect is best; thereby effectively the control system oil temperature is protected hydraulic system.
Need to prove that the mode such as among the above-mentioned various embodiments, the state of each three-way flowrate valve can adopt manually, surges, electronic or temperature control is controlled.In addition, in embodiment one, also can at the second oil circuit 02 three-way flowrate valve and corresponding bleed off circuit be set as required, in embodiment two, also can at the first oil circuit 01 three-way flowrate valve and corresponding bleed off circuit be set as required.
The hydraulic oil cooling system that above-mentioned various embodiment provides can be implemented in that the hydraulic oil to hydraulic system carries out effective cooling under the condition that does not additionally increase water cooling plant, has improved resource utilization; In addition, in use, can control as required preferential use water cooling function or use simultaneously water-cooled and air-cooling function, compared with prior art, avoid air cooling equipment to hold flimsy problem during from the hydraulic oil of main pump work system in cooling; In addition, by selecting suitable three-way flowrate valve and disposing corresponding temperature control system, can realize the automatic control of oil temperature.
Among the above-mentioned various embodiment, the flow direction of the hydraulic oil of each oil circuit can commutate, so the outlet of oil circuit also can be changed relatively with entrance.
The utility model embodiment also provides a kind of pumping machine, concrete mixer for example, this pumping machine is provided with above-mentioned hydraulic oil cooling device, because above-mentioned hydraulic oil cooling device has above-mentioned technique effect, therefore, the pumping machine that is provided with this hydraulic oil cooling device also should possess corresponding technique effect, and the specific implementation process of its appropriate section is not given unnecessary details hereby with reference to the various embodiments described above.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (7)
1. hydraulic oil cooling device, be used for pumping machine, described pumping machine has hydraulic system and water tank (4), it is characterized in that: described hydraulic oil cooling device comprises the first oil circuit (01) and described water tank (4), the hydraulic oil of described the first oil circuit (01) comes from described hydraulic system, described water tank is provided with heat exchange duct in (4), the hydraulic oil of described the first oil circuit (01) the described heat exchange duct of flowing through.
2. hydraulic oil cooling device as claimed in claim 1, it is characterized in that: described hydraulic oil cooling device also comprises the second oil circuit (02) and air cooling equipment (2), the hydraulic oil of described the second oil circuit (02) the described air cooling equipment (2) of flowing through.
3. such as claim 2 hydraulic oil cooling device, it is characterized in that: the oil outlet of described heat exchange duct and described air cooling equipment (2) leads to fuel tank, described hydraulic oil cooling device also comprises the first bleed off circuit (03) and the first three-way flowrate valve (3), the entry end of described the first bleed off circuit (03) is connected on described the first oil circuit (01) by described the first three-way flowrate valve (3), and the outlet end of described the first bleed off circuit (03) leads to fuel tank (1).
4. hydraulic oil cooling device as claimed in claim 2, it is characterized in that: the oil outlet of described heat exchange duct and described air cooling equipment (2) leads to fuel tank, described hydraulic oil cooling device also comprises the second bleed off circuit (04) and the second three-way flowrate valve (5), the entry end of described the second bleed off circuit (04) is connected on described the second oil circuit (02) by described the second three-way flowrate valve (5), and the outlet end of described the second bleed off circuit (04) leads to fuel tank (1).
5. hydraulic oil cooling device as claimed in claim 2, it is characterized in that: described hydraulic oil cooling device comprises the 3rd oil circuit (05) and the 3rd three-way flowrate valve (6), the outlet end of described the 3rd oil circuit (5) is connected to the entry end of described the 3rd three-way flowrate valve (6), and two outlet end of described the 3rd three-way flowrate valve (6) are connected to respectively the entry end of described the first oil circuit (01) and described the second oil circuit (02).
6. pumping machine, it is characterized in that: described pumping machine is provided with each described hydraulic oil cooling device of claim 1 to 5.
7. pumping machine as claimed in claim 6, it is characterized in that: described pumping machine is concrete mixer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220425786 CN202768541U (en) | 2012-08-24 | 2012-08-24 | Hydraulic oil cooling device and pumping machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220425786 CN202768541U (en) | 2012-08-24 | 2012-08-24 | Hydraulic oil cooling device and pumping machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202768541U true CN202768541U (en) | 2013-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220425786 Expired - Fee Related CN202768541U (en) | 2012-08-24 | 2012-08-24 | Hydraulic oil cooling device and pumping machinery |
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| CN (1) | CN202768541U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106378427A (en) * | 2016-12-05 | 2017-02-08 | 佛山市承安铜业有限公司 | Crystallizer with pre-cooling function and pre-cooling method used for copper crystallizing process |
| CN108974878A (en) * | 2018-07-19 | 2018-12-11 | 中国神华能源股份有限公司 | The multi-functional dust suppression system and mechanically moving of mechanically moving |
| CN113894935A (en) * | 2021-10-28 | 2022-01-07 | 中国重汽集团青岛重工有限公司 | Electric control hydraulic intelligent pump mixer truck and control method thereof |
-
2012
- 2012-08-24 CN CN 201220425786 patent/CN202768541U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106378427A (en) * | 2016-12-05 | 2017-02-08 | 佛山市承安铜业有限公司 | Crystallizer with pre-cooling function and pre-cooling method used for copper crystallizing process |
| CN108974878A (en) * | 2018-07-19 | 2018-12-11 | 中国神华能源股份有限公司 | The multi-functional dust suppression system and mechanically moving of mechanically moving |
| CN113894935A (en) * | 2021-10-28 | 2022-01-07 | 中国重汽集团青岛重工有限公司 | Electric control hydraulic intelligent pump mixer truck and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SANY AUTOMOBILE MANUFACTURING CO., LTD. Free format text: FORMER OWNER: SANYI HEAVY INDUSTRY CO LTD Effective date: 20130502 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130502 Address after: 410100 Changsha economic and Technological Development Zone, Hunan City, the 31 industrial city Patentee after: SANY Automobile Manufacturing Co., Ltd. Address before: 410100 Changsha economic and Technological Development Zone, Hunan City, the 31 industrial city Patentee before: Sanyi Heavy Industry Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20180824 |
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| CF01 | Termination of patent right due to non-payment of annual fee |