Hydraulic retarder oil way structure driven by oil pump

Abstract

The utility model relates to the technical field of hydraulic retarders, in particular to a hydraulic retarder oil way structure driven by an oil pump. The oil way structure comprises the hydraulic retarder and an oil tank, the hydraulic retarder is connected with a working oil pipe, the oil way structure further comprises an oil pump, the input end of the oil pump is communicated with the oil tank, and the output end of the oil pump is communicated with the working oil pipe. When the hydraulic retarder is used, the oil pump and the working oil pipe are started, oil in the oil tank is conveyed into the hydraulic retarder to serve as working oil, compared with the prior art, the working oil conveying efficiency of the oil pump is higher, meanwhile, the contact opportunity of air and the oil in the oil tank is reduced, and pollution of water to the oil in the oil tank is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic retarders, and in particular to an oil circuit structure of a hydraulic retarder driven by an oil pump. Background Art

[0002] The existing hydraulic retarder oil circuit structure includes a hydraulic retarder and an oil tank. The hydraulic retarder is connected to a working oil pipe. When the hydraulic retarder is working, a pressure medium is used to act on the working oil in the oil tank, and the working oil in the oil tank is pressed into the working oil pipe and enters the hydraulic retarder. The pressure medium is usually compressed air, which is produced by an air compression pump of a vehicle, is relatively easy to obtain, and has a low cost.

[0003] However, the above technical solution has the following disadvantages: the compressed air contains moisture. When the compressed air acts on the working oil in the oil tank, the moisture will mix into the working oil. After long-term use, it will cause oil contamination and affect the normal use of the hydraulic retarder. Utility Model Content

[0004] The purpose of the utility model is to provide an oil circuit structure of a hydraulic retarder driven by an oil pump to reduce the contact opportunity between air and oil in the oil tank and reduce the pollution of water to the oil in the oil tank.

[0005] To achieve the above-mentioned purpose, the utility model discloses an oil circuit structure of a hydraulic retarder driven by an oil pump, the oil circuit structure comprising a hydraulic retarder and an oil tank, the hydraulic retarder is connected to a working oil pipe, and also comprises an oil pump, the input end of the oil pump is connected to the oil tank, and the output end of the oil pump is connected to the working oil pipe.

[0006] When in use, start the oil pump and the working oil pipe to transport the oil in the oil tank to the hydraulic retarder for use as working oil. Compared with the existing technology, the oil pump is more efficient in transporting the working oil. At the same time, it reduces the chance of contact between air and the oil in the oil tank and reduces the contamination of the oil in the oil tank by water.

[0007] Preferably, the oil pump is a gear pump or a rotor pump.

[0008] Gear pumps or rotor pumps are easy to use and more efficient in delivering working oil.

[0009] Preferably, the hydraulic retarder is also connected to a lubricating oil pipe, and the output end of the oil pump is connected to the lubricating oil pipe.

[0010] Preferably, it also includes a heat exchanger, in which a plurality of working oil tanks and coolant tanks in contact with the working oil tanks are installed, the coolant tanks are connected to coolant pipes, the interior of the working oil tanks is divided into a working oil chamber and a lubricating oil chamber by a partition, the working oil chamber is connected to the working oil pipe, the lubricating oil chamber is connected to the lubricating oil pipe, and the flow direction of the working oil in the working oil chamber in each working oil tank is opposite to the flow direction of the lubricating oil in the lubricating oil chamber.

[0011] When in use, the temperature of the working oil and the lubricating oil is lowered through the action of the coolant tank. In addition, the flow direction of the working oil in the working oil chamber is opposite to the flow direction of the lubricating oil in the lubricating oil chamber, which facilitates heat transfer between the two and makes the temperatures of the two tend to be consistent, reducing the risk of temperature differences in different areas of the oil tank and facilitating use.

[0012] Preferably, each working oil tank body corresponds to at least one coolant tank body, and the flow direction of the coolant in the coolant tank body is opposite to the flow direction of the working oil in the working oil chamber in the contacting working oil tank body.

[0013] When in use, improve cooling efficiency.

[0014] Preferably, a cooling box ear plate is connected to the side of the coolant box, and two adjacent coolant boxes are connected by a bolt and nut structure.

[0015] This structure is easy to install and is convenient for assembling multiple coolant tanks together.

[0016] Preferably, a support frame is connected to the inner lower end of the heat exchanger, and the coolant tank is connected to the support frame via a bolt and nut structure.

[0017] This structure facilitates the installation of the coolant tank.

[0018] Preferably, each working oil tank body corresponds to two coolant tank bodies, the working oil tank body is located between the two coolant tank bodies, and a pressure plate is connected between the two coolant tank bodies located at the upper ends.

[0019] When in use, the coolant tank should be located on both sides of the working oil tank to improve cooling efficiency.

[0020] Preferably, a first coolant box positioning groove is provided on the support frame, a second coolant box positioning groove is provided on the upper and lower sides of the coolant box, a third coolant box positioning groove is provided on the pressure plate, a first coolant box positioning pin is installed between the support frame and the coolant box, a second coolant box positioning pin is installed between two adjacent coolant boxes, and a third coolant box positioning pin is installed between the pressure plate and the coolant box.

[0021] This structure is used to improve the installation accuracy between coolant tanks.

[0022] Preferably, a first working oil tank body positioning groove is provided on the support frame, a second working oil tank body positioning groove is provided on the upper and lower sides of the working oil tank body, a third working oil tank body positioning groove is provided on the pressure plate, a first working oil tank body positioning pin is installed between the support frame and the working oil tank body, a second working oil tank body positioning pin is installed between two adjacent working oil tank bodies, and a third working oil tank body positioning pin is installed between the pressure plate and the working oil tank body.

[0023] This structure is used to improve the installation accuracy between the working oil tank bodies.

[0024] In summary, the beneficial effects of the utility model are: when in use, the oil pump and the working oil pipe are started, and the oil in the oil tank is transported to the hydraulic retarder for use as working oil. Compared with the prior art, the oil pump is more efficient in transporting the working oil. At the same time, the contact opportunity between air and the oil in the oil tank is reduced, and the contamination of the oil in the oil tank by water is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of the oil circuit structure of a hydraulic retarder driven by an oil pump in the utility model;

[0026] Figure 2 It is a structural schematic diagram of a heat exchanger in an oil circuit structure of a hydraulic retarder driven by an oil pump in the utility model;

[0027] Figure 3 yes Figure 2 Structural diagram of the middle section AA;

[0028] Figure 4 yes Figure 3 A schematic diagram of the enlarged structure of the local B in the middle;

[0029] Figure 5 yes Figure 3 Schematic diagram of the enlarged structure of the local C in the middle;

[0030] Figure 6 It is a structural schematic diagram of a working oil tank in an oil circuit structure of a hydraulic retarder driven by an oil pump in the utility model;

[0031] Figure 7 yes Figure 6 Schematic diagram of the enlarged structure of the local D in the middle;

[0032] Figure 8 It is a structural schematic diagram of a coolant tank in an oil circuit structure of a hydraulic retarder driven by an oil pump in the utility model;

[0033] Fig. 9 yes Figure 8 Schematic diagram of the enlarged structure of local E in the figure.

[0034] In the figure: 1, hydraulic retarder; 2, working oil pipe; 3, lubricating oil pipe; 4, oil tank; 5, oil pump; 6, working oil valve; 7, lubricating oil valve; 8, heat exchanger; 9, coolant pipe; 10, coolant box; 11, cooling box ear plate; 12, support frame; 13, pressure plate; 14, working oil box; 15, first coolant box positioning groove; 16, first coolant box positioning pin; 17, second coolant box positioning groove; 18, second coolant tank Body locating pin; 19, third coolant box locating groove; 20, third coolant box locating pin; 21, first working oil box locating groove; 22, first working oil box locating pin; 23, second working oil box locating groove; 24, second working oil box locating pin; 25, third working oil box locating groove; 26, third working oil box locating pin; 27, partition; 28, coolant through hole; 29, sealing ring; 30, working oil chamber; 31, lubricating oil chamber. DETAILED DESCRIPTION

[0035] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0036] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0037] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0038] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0040] like Figures 1 to 9 As shown, an oil circuit structure of a hydraulic retarder driven by an oil pump includes a hydraulic retarder 1 and an oil tank 4. The hydraulic retarder 1 is connected to a working oil pipe 2 and also includes an oil pump 5. The input end of the oil pump 5 is connected to the oil tank 4, and the output end of the oil pump 5 is connected to the working oil pipe 2. Specifically, a working oil valve 6 is installed at the front end of the working oil pipe 2.

[0041] When in use, start the oil pump 5 and the working oil pipe 2 to transport the oil in the oil tank 4 to the hydraulic retarder 1 for use as working oil. Compared with the prior art, the oil pump 5 is more efficient in transporting the working oil. At the same time, it reduces the chance of contact between air and the oil in the oil tank 4, and reduces the contamination of the oil in the oil tank 4 by moisture.

[0042] The oil pump 5 is a gear pump or a rotor pump.

[0043] Gear pumps or rotor pumps are easy to use and more efficient in delivering working oil.

[0044] The hydraulic retarder 1 is also connected to a lubricating oil pipe 3, and the output end of the oil pump 5 is connected to the lubricating oil pipe 3. Specifically, a lubricating oil valve 7 is installed at the front end of the lubricating oil pipe 3.

[0045] It also includes a heat exchanger 8, in which a plurality of working oil tanks 14 and a coolant tank 10 in contact with the working oil tank 14 are installed, the coolant tank 10 is connected to a coolant pipe 9, and the interior of the working oil tank 14 is divided into a working oil chamber 30 and a lubricating oil chamber 31 by a partition 27, the working oil chamber 30 is connected to the working oil pipe 2, and the lubricating oil chamber 31 is connected to the lubricating oil pipe 3, and the flow direction of the working oil in the working oil chamber 30 of each working oil tank 14 is opposite to the flow direction of the lubricating oil in the lubricating oil chamber 31.

[0046] When in use, the temperature of the working oil and the lubricating oil is lowered through the action of the coolant tank 10. In addition, the flow direction of the working oil in the working oil chamber 30 is opposite to the flow direction of the lubricating oil in the lubricating oil chamber 31, which facilitates heat transfer between the two and makes the temperatures of the two tend to be consistent, reducing the risk of temperature differences in different areas of the oil tank 4 and facilitating use.

[0047] Each working oil tank body 14 corresponds to at least one coolant tank body 10 , and the flow direction of the coolant in the coolant tank body 10 is opposite to the flow direction of the working oil in the working oil chamber 30 in the working oil tank body 14 in contact therewith.

[0048] When in use, improve cooling efficiency.

[0049] A cooling box ear plate 11 is connected to the side of the coolant box 10, and two adjacent coolant boxes 10 are connected by a bolt and nut structure.

[0050] This structure is easy to install and is convenient for assembling multiple coolant tanks 10 together.

[0051] A support frame 12 is connected to the inner lower end of the heat exchanger 8, and the coolant tank 10 is connected to the support frame 12 via a bolt and nut structure.

[0052] This structure facilitates the installation of the coolant tank 10 .

[0053] Each working oil tank body 14 corresponds to two coolant tank bodies 10 , and the working oil tank body 14 is located between the two coolant tank bodies 10 . A pressure plate 13 is connected between the two coolant tank bodies 10 at the upper ends.

[0054] When in use, the coolant tank 10 should be located on both sides of the working oil tank 14 to improve the cooling efficiency.

[0055] The support frame 12 is provided with a first coolant tank positioning groove 15, the coolant tank 10 is provided with a second coolant tank positioning groove 17 on both upper and lower sides, the pressure plate 13 is provided with a third coolant tank positioning groove 19, a first coolant tank positioning pin 16 is installed between the support frame 12 and the coolant tank 10, a second coolant tank positioning pin 18 is installed between two adjacent coolant tanks 10, and a third coolant tank positioning pin 20 is installed between the pressure plate 13 and the coolant tank 10. Specifically, the coolant tank 10 is provided with a coolant through hole 28 on both upper and lower sides, and a sealing ring 29 is installed between two adjacent coolant tanks 10.

[0056] This structure is used to improve the installation accuracy between the coolant tanks 10.

[0057] A first working oil tank body positioning groove 21 is opened on the support frame 12, a second working oil tank body positioning groove 23 is opened on the upper and lower sides of the working oil tank body 14, a third working oil tank body positioning groove 25 is opened on the pressure plate 13, a first working oil tank body positioning pin 22 is installed between the support frame 12 and the working oil tank body 14, a second working oil tank body positioning pin 24 is installed between two adjacent working oil tank bodies 14, and a third working oil tank body positioning pin 26 is installed between the pressure plate 13 and the working oil tank body 14.

[0058] This structure is used to improve the installation accuracy between the hydraulic oil tank bodies 14.

[0059] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. An oil circuit structure of a hydraulic retarder driven by an oil pump, comprising a hydraulic retarder (1) and an oil tank (4), wherein the hydraulic retarder (1) is connected to a working oil pipe (2), and wherein: It also includes an oil pump (5), the input end of the oil pump (5) is connected to the oil tank (4), and the output end of the oil pump (5) is connected to the working oil pipe (2).

2. The oil circuit structure of the hydraulic retarder driven by the oil pump as claimed in claim 1, characterized in that: The oil pump (5) is a gear pump or a rotor pump.

3. The oil circuit structure of a hydraulic retarder driven by an oil pump according to any one of claims 1 to 2, characterized in that: The hydraulic retarder (1) is also connected to a lubricating oil pipe (3), and the output end of the oil pump (5) is in communication with the lubricating oil pipe (3).

4. The oil circuit structure of the hydraulic retarder driven by the oil pump as claimed in claim 3, characterized in that: The heat exchanger (8) further comprises a plurality of working oil tank bodies (14) and a coolant tank body (10) in contact with the working oil tank body (14), the coolant tank body (10) being connected to a coolant pipe (9), the interior of the working oil tank body (14) being divided into a working oil chamber (30) and a lubricating oil chamber (31) by a partition plate (27), the working oil chamber (30) being connected to the working oil pipe (2), the lubricating oil chamber (31) being connected to the lubricating oil pipe (3), and the flow direction of the working oil in the working oil chamber (30) of each working oil tank body (14) being opposite to the flow direction of the lubricating oil in the lubricating oil chamber (31).

5. The oil circuit structure of the hydraulic retarder driven by the oil pump as claimed in claim 4, characterized in that: Each working oil tank body (14) corresponds to at least one coolant tank body (10), and the flow direction of the coolant in the coolant tank body (10) is opposite to the flow direction of the working oil in the working oil chamber (30) in the working oil tank body (14) in contact with it.

6. The oil circuit structure of the hydraulic retarder driven by the oil pump as claimed in claim 5, characterized in that: A cooling box ear plate (11) is connected to the side of the cooling liquid box (10), and two adjacent cooling liquid boxes (10) are connected via a bolt and nut structure.

7. The oil circuit structure of the hydraulic retarder driven by the oil pump as claimed in claim 6, characterized in that: A support frame (12) is connected to the inner lower end of the heat exchanger (8), and the coolant tank (10) and the support frame (12) are connected via a bolt and nut structure.

8. The oil circuit structure of the hydraulic retarder driven by the oil pump as claimed in claim 7, characterized in that: The number of coolant tank bodies (10) corresponding to each working oil tank body (14) is two, the working oil tank body (14) is located between the two coolant tank bodies (10), and a pressure plate (13) is connected between the two coolant tank bodies (10) located at the upper ends.

9. The oil circuit structure of a hydraulic retarder driven by an oil pump as claimed in claim 8, characterized in that: A first coolant box positioning groove (15) is provided on the support frame (12), second coolant box positioning grooves (17) are provided on both upper and lower sides of the coolant box (10), a third coolant box positioning groove (19) is provided on the pressure plate (13), a first coolant box positioning pin (16) is installed between the support frame (12) and the coolant box (10), a second coolant box positioning pin (18) is installed between two adjacent coolant boxes (10), and a third coolant box positioning pin (20) is installed between the pressure plate (13) and the coolant box (10).

10. The oil circuit structure of a hydraulic retarder driven by an oil pump as claimed in claim 8, characterized in that: A first working oil tank body positioning groove (21) is formed on the support frame (12), second working oil tank body positioning grooves (23) are formed on both upper and lower sides of the working oil tank body (14), a third working oil tank body positioning groove (25) is formed on the pressure plate (13), a first working oil tank body positioning pin (22) is installed between the support frame (12) and the working oil tank body (14), a second working oil tank body positioning pin (24) is installed between two adjacent working oil tank bodies (14), and a third working oil tank body positioning pin (26) is installed between the pressure plate (13) and the working oil tank body (14).

Images