CN202730832U - Dual-cooling device of hydraulic system of backhoe loader - Google Patents

Dual-cooling device of hydraulic system of backhoe loader Download PDF

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Publication number
CN202730832U
CN202730832U CN 201220344276 CN201220344276U CN202730832U CN 202730832 U CN202730832 U CN 202730832U CN 201220344276 CN201220344276 CN 201220344276 CN 201220344276 U CN201220344276 U CN 201220344276U CN 202730832 U CN202730832 U CN 202730832U
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CN
China
Prior art keywords
oil
cooling
cooler
pipe
hydraulic system
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.)
Expired - Fee Related
Application number
CN 201220344276
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Chinese (zh)
Inventor
牛其刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HUAINAN ZHONGXING MACHINERY MANUFACTURING Co Ltd
Original Assignee
HUAINAN ZHONGXING MACHINERY MANUFACTURING Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HUAINAN ZHONGXING MACHINERY MANUFACTURING Co Ltd filed Critical HUAINAN ZHONGXING MACHINERY MANUFACTURING Co Ltd
Priority to CN 201220344276 priority Critical patent/CN202730832U/en
Application granted granted Critical
Publication of CN202730832U publication Critical patent/CN202730832U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a dual-cooling device of a hydraulic system of a backhoe loader. The dual-cooling device comprises a return oil pipe and an oil tank. Return oil of the hydraulic system of the backhoe loader enters the oil tank through the return oil pipe. The dual-cooling device additionally comprises a serpentine cooler and a plate cooler. The serpentine cooler is arranged in the oil tank. The plate cooler is arranged outside the oil tank. A water inlet I and a water outlet I are arranged on in the oil tank. The water inlet I and the water outlet I are communicated with the serpentine cooler. A water inlet II and a water outlet II are arranged in the plate cooler. An oil inlet and an oil outlet are additionally arranged on the plate cooler. Oil in the return oil pipe is cooled by the plate cooler and then returns the oil tank. Cooling water enters the serpentine cooler from the water inlet I, then flows out of the serpentine cooler from the water outlet I, enters the plate cooler from the water inlet II through a water pipe and finally flows out of the plate cooler from the water outlet II. The dual-cooling device of the hydraulic system of the backhoe loader has the advantages that the heat dissipation area is increased through dual-cooling, the cost is lower and the control requirement on oil temperature of the hydraulic system is satisfied.

Description

Two cooling units of loader-digger hydraulic system
Technical field
The utility model relates generally to caterpillar type loader digger field, mine, relates in particular to a kind of loader-digger pair of cooling devices of hydraulic system.
Background technology
At present domestic loader-digger hydraulic system to be adopted air-cooled or the cooling of external list.When complete machine is worked because the hydraulic system oil return can not get sufficient cooling, the temperature of hydraulic system can rise very fast and when working long hours oil temperature can keep higher, therefore can cause very large impact to normal use and the life-span of hydraulic oil and Hydraulic Elements.
The utility model content
The utility model purpose is exactly in order to remedy the defective of prior art, a kind of loader-digger pair of cooling devices of hydraulic system to be provided.
The utility model is achieved through the following technical solutions:
A kind of two cooling units of loader-digger hydraulic system, include oil returning tube, fuel tank, the oil return of loader-digger hydraulic system enters fuel tank through oil returning tube, it is characterized in that: also include cooling coil(ed) pipe, panel cooler, described cooling coil(ed) pipe places in the fuel tank, panel cooler places outside the fuel tank, fuel tank is provided with water inlet one, delivery port one, water inlet one, delivery port one all communicates with cooling coil(ed) pipe, panel cooler is provided with water inlet two, delivery port two, also have oil-in and oil-out on the panel cooler, the oil sump tank after the panel cooler cooling of flowing through of the oil in the oil returning tube; Cooling water enters cooling coil(ed) pipe from water inlet one, flows out cooling coil(ed) pipe from delivery port one again, enters panel cooler by water pipe from water inlet two again, goes out panel cooler from delivery port is second-rate at last.
Oil in the described oil returning tube oil sump tank after the panel cooler cooling of flowing through.
The utility model has the advantages that:
Two cooling of the present utility model has strengthened area of dissipation, and cost is lower, satisfies the control requirement of the oil liquid temperature of hydraulic system.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
As shown in Figure 1, two cooling units of loader-digger hydraulic system include oil returning tube 4, fuel tank 2, the oil return of loader-digger hydraulic system through oil returning tube 4, panel cooler 1, enter fuel tank 2, also the bag
Cooling coil(ed) pipe 3, panel cooler 1 have been drawn together, cooling coil(ed) pipe 3 places in the fuel tank 2, panel cooler 1 places outside the fuel tank 2, fuel tank 2 is provided with water inlet 1, delivery port 1, water inlet 1, delivery port 1 all communicate with cooling coil(ed) pipe 3, panel cooler 1 is provided with water inlet 27, delivery port 28, also has oil-in and oil-out on the panel cooler 1, and oil returning tube 4 interior oil are flowed through in the rear oil sump tank 2 of panel cooler 1 cooling; Cooling water enters cooling coil(ed) pipe 3 from water inlet 1, flows out cooling coil(ed) pipe 3 from delivery port 1 again, enters panel cooler 1 by water pipe 9 from water inlet 27 again, flows out panel cooler 1 from delivery port 28 at last.
Oil in the oil returning tube 4 oil sump tank after panel cooler 1 cooling of flowing through.
Two cooling units that the cooling system of loader-digger hydraulic pressure adopts fuel tank 2 built-in cooling coil(ed) pipes 3 and fuel tank 2 external panel coolers 1 to combine.The cooling water cooling coil(ed) pipe 3 of flowing through first, copper tube by cooling coil(ed) pipe 3 with and on the flake aluminum transferring heat make hydraulic oil cooling in the fuel tank 1, then cooling water flow is to panel cooler 1, and the fin transferring heat by panel cooler 1 makes the hydraulic oil cooling in the panel cooler.Two coolings have strengthened area of dissipation, and cost is lower, satisfy the control requirement of the oil liquid temperature of hydraulic system.

Claims (2)

1. two cooling units of a loader-digger hydraulic system, include oil returning tube, fuel tank, the oil return of loader-digger hydraulic system enters fuel tank through oil returning tube, it is characterized in that: also include cooling coil(ed) pipe, panel cooler, described cooling coil(ed) pipe places in the fuel tank, panel cooler places outside the fuel tank, fuel tank is provided with water inlet one, delivery port one, water inlet one, delivery port one all communicates with cooling coil(ed) pipe, panel cooler is provided with water inlet two, delivery port two, also have oil-in and oil-out on the panel cooler, the oil sump tank after the panel cooler cooling of flowing through of the oil in the oil returning tube; Cooling water enters cooling coil(ed) pipe from water inlet one, flows out cooling coil(ed) pipe from delivery port one again, enters panel cooler by water pipe from water inlet two again, goes out panel cooler from delivery port is second-rate at last.
2. two cooling units of loader-digger hydraulic system according to claim 1 is characterized in that: the oil sump tank after the panel cooler cooling of flowing through of the oil in the described oil returning tube.
CN 201220344276 2012-07-16 2012-07-16 Dual-cooling device of hydraulic system of backhoe loader Expired - Fee Related CN202730832U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220344276 CN202730832U (en) 2012-07-16 2012-07-16 Dual-cooling device of hydraulic system of backhoe loader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220344276 CN202730832U (en) 2012-07-16 2012-07-16 Dual-cooling device of hydraulic system of backhoe loader

Publications (1)

Publication Number Publication Date
CN202730832U true CN202730832U (en) 2013-02-13

Family

ID=47656545

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220344276 Expired - Fee Related CN202730832U (en) 2012-07-16 2012-07-16 Dual-cooling device of hydraulic system of backhoe loader

Country Status (1)

Country Link
CN (1) CN202730832U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111608998A (en) * 2020-05-12 2020-09-01 湖北锐坤机械制造有限公司 Hydraulic control system of loader-digger for coal mine
CN111845925A (en) * 2019-04-25 2020-10-30 山东奔跑智能科技有限公司 Direction machine cooling system for engineering machinery

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111845925A (en) * 2019-04-25 2020-10-30 山东奔跑智能科技有限公司 Direction machine cooling system for engineering machinery
CN111608998A (en) * 2020-05-12 2020-09-01 湖北锐坤机械制造有限公司 Hydraulic control system of loader-digger for coal mine
CN111608998B (en) * 2020-05-12 2022-06-21 湖北锐坤机械制造有限公司 Hydraulic control system of loader-digger for coal mine

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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: 20130213

Termination date: 20150716

EXPY Termination of patent right or utility model