A cooling device for a diesel engine hydraulic pump unit

Abstract

The application discloses a diesel engine hydraulic pump set cooling device and belongs to the technical field of hydraulic oil cooling equipment. Mainly comprising a diesel engine, the diesel engine is connected with a hydraulic pump set, the hydraulic pump set has an oil circuit, a cooler is communicated on the oil circuit of the hydraulic pump set, the cooler has an oil inlet for hydraulic oil introduction and an oil outlet for hydraulic oil export, a cover is covered on the back of the cooler, a cooling cavity is formed between the cover and the cooler, and a locking mechanism is arranged between the cover and the cooler, and the locking mechanism is used for opening or closing the cooling cavity. The diesel engine hydraulic pump set cooling device can realize double cooling of the hydraulic oil, and the locking mechanism can realize quick opening and closing of the cooling cavity, so that the cleaning of the cooling cavity is facilitated.

Description

Technical Field

[0001] This application relates to the technical field of hydraulic oil cooling equipment, specifically a cooling device for a diesel engine hydraulic pump set. Background Technology

[0002] The diesel engine hydraulic pump unit consists of two parts: a diesel engine and a hydraulic pump station. The diesel engine provides power, and the hydraulic pump station converts mechanical energy into hydraulic energy. When working, the diesel engine burns fuel to generate power, which drives the hydraulic pump to rotate, thereby generating high-pressure hydraulic oil, which is delivered to the actuator through pipelines, and then drives the actuator to move.

[0003] As the diesel engine hydraulic pump unit continues to work, the hydraulic oil temperature rises, and the hydraulic oil viscosity, volumetric efficiency, and hydraulic system working efficiency all decrease. Leakage also increases, and hydraulic components will rust and age, affecting the fitting accuracy, shortening their service life, and even causing mechanical equipment to malfunction. Therefore, the temperature of hydraulic oil in a general hydraulic system is controlled at 40 degrees Celsius, and a cooling device is needed to treat the hydraulic oil during the working process.

[0004] For example, the patent with publication number CN202451521 U specifically discloses a hydraulic oil cooling device for a diesel engine hydraulic pump group. This patent includes a hydraulic oil pump and a hydraulic oil tank installed at the rear end of the diesel engine, and a cooling fan at the front end. A heat dissipation tank is provided on the outside of the cooling fan. A hydraulic oil cooler is provided inside the heat dissipation tank. The hydraulic oil inlet of the hydraulic oil cooler is connected to the hydraulic oil pump, and the hydraulic oil outlet is connected to the hydraulic oil tank, thereby cooling the hydraulic oil through the hydraulic oil cooler and the cooling fan.

[0005] In the implementation of the above-mentioned patent, the hydraulic oil cooler and the cooling fan are designed as a single unit to form a cooling chamber. However, during the cooling process of the hydraulic oil, due to the action of the cooling fan, the gas in the cooling chamber continues to circulate. Over time, a large amount of dust and impurities will inevitably be introduced, so regular cleaning is required. However, the single-unit design structure cannot make it easy to open the cooling chamber for cleaning. Therefore, it is necessary to provide a diesel engine hydraulic pump group cooling device to solve the above problems.

[0006] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Utility Model Content

[0007] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a diesel engine hydraulic pump cooling device, which solves the problem that the diesel engine hydraulic pump cooling device is inconvenient to open and clean.

[0008] The technical solution adopted by this application to solve its technical problem is as follows: a diesel engine hydraulic pump group cooling device, including a diesel engine, on which a hydraulic pump group is connected, the hydraulic pump group having an oil circuit; a cooler connected to the oil circuit of the hydraulic pump group, the cooler having an inlet for hydraulic oil inlet and an outlet for hydraulic oil outlet; a cover covering the back of the cooler, a cooling chamber being formed between the cover and the cooler; a locking mechanism for opening or closing the cooling chamber, the locking mechanism including a bracket mounted on the cover, a first rotating shaft fixedly mounted on the bracket, a rotating frame rotatably mounted on the first rotating shaft; a second rotating shaft rotatably mounted on the rotating frame, a locking ring fixedly mounted on the second rotating shaft; a boss fixedly mounted at one end of the cooler, a baffle fixedly mounted on the boss, the baffle being adapted to the locking ring.

[0009] Furthermore, the distance between the second rotating shaft and the baffle is greater than the distance between the first rotating shaft and the baffle.

[0010] Furthermore, a pressing part is provided at the end of the rotating frame.

[0011] Furthermore, a positioning block is fixedly installed on the top of the inner wall of the cover, and a positioning groove adapted to the positioning block is provided at the bottom of the cooler.

[0012] Furthermore, the housing is provided with a through hole, and a fan is installed on the output end of the diesel engine, with the fan located at the through hole.

[0013] Furthermore, a heat dissipation window is provided at one end of the cooler.

[0014] The beneficial effects of this application are: the diesel engine hydraulic pump group cooling device provided by this application can achieve dual cooling of hydraulic oil by setting a cooling chamber formed by a cooler and a cover in the oil circuit of the hydraulic pump group, and the cooling chamber can be quickly opened and closed by setting a locking mechanism, thereby facilitating the cleaning of the cooling chamber.

[0015] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 This is an overall schematic diagram of a diesel engine hydraulic pump cooling device according to this application;

[0018] Figure 2 for Figure 1 Exploded view of the intermediate cooling mechanism Figure 1 ;

[0019] Figure 3 for Figure 1 Exploded view of the intermediate cooling mechanism Figure 2 ;

[0020] Figure 4 for Figure 1 A partial structural diagram at point A in the middle;

[0021] The following are the labeling elements in the figure:

[0022] 1. Diesel engine; 2. Hydraulic pump set; 3. Oil inlet; 4. Oil outlet; 5. Cooler; 6. Cover; 7. Fan; 8. Positioning block; 9. Boss; 10. Baffle; 11. Bracket; 12. Rotating frame; 13. Pressing part; 14. Locking ring; 15. First rotating shaft; 16. Second rotating shaft; 17. Positioning groove; 18. Heat dissipation window; 19. Through hole. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present application.

[0025] like Figures 1-2 As shown, this application provides a diesel engine hydraulic pump group cooling device, including a diesel engine 1, which has an output shaft. A hydraulic pump group 2 is connected to one end of the output shaft. An actuator is connected to the output end of the hydraulic pump group 2. When the diesel engine 1 is working, it generates power to drive the hydraulic pump group 2 to work, thereby generating high-pressure hydraulic oil, which is delivered to the actuator through pipeline, thereby driving the actuator to move.

[0026] During the continuous operation of the hydraulic pump unit 2, the temperature of the hydraulic oil will inevitably rise. In order to cool the hydraulic oil, a cooling mechanism is provided in the oil circuit of the hydraulic pump unit 2. The cooling mechanism includes a cooler 5, which is similar to a heat exchanger in the prior art. By introducing cooling gas or liquid, the hydraulic oil passing through the cooler 5 is cooled by heat exchange.

[0027] It should be noted that the cooler 5 has an oil inlet 3 for introducing hydraulic oil and an oil outlet 4 for discharging hydraulic oil. Both the oil inlet 3 and the oil outlet 4 are connected to the oil circuit of the hydraulic pump group 2, thereby realizing the circulation of hydraulic oil. At the same time, the cooler 5 is provided with an inlet end and an outlet end for introducing and discharging cooling gas or liquid. The inlet end and the outlet end are used to introduce cooling gas or liquid to facilitate heat exchange with the hydraulic oil.

[0028] To further improve the cooling effect of hydraulic oil, a cover 6 is fitted on the back of the cooler 5. After installation, the cover 6 and the cooler 5 form a cooling chamber. At the same time, a through hole 19 is provided on the cover 6, and a fan 7 is installed on the output end of the diesel engine 1. The fan 7 is located at the through hole 19. When the diesel engine 1 is working, it will drive the fan 7 to rotate through the output end, thereby guiding the airflow from the through hole 19 into the cooling chamber to further cool the cooler 5 through airflow.

[0029] Furthermore, a heat dissipation window 18 is provided at one end of the cooler 5, which is used to exhaust the airflow entering the cooling chamber.

[0030] During the long-term hydraulic oil cooling process, dust and other impurities will inevitably accumulate in the cooling chamber. In order to facilitate the cleaning of the cooling chamber, a locking mechanism is provided between the cooler 5 and the cover 6 to facilitate opening or closing the cooling chamber.

[0031] like Figure 1 and Figure 3 As shown, the locking mechanism includes a bracket 11 fixedly mounted on the housing 6, a first rotating shaft 15 fixedly mounted on the bracket 11, and a rotating frame 12 rotatably mounted on the first rotating shaft 15, so that the rotating frame 12 can rotate around the first rotating shaft 15;

[0032] Meanwhile, a second rotating shaft 16 is rotatably mounted on the rotating frame 12, and a locking ring 14 is fixedly mounted on the second rotating shaft 16, so that the locking ring 14 can rotate on the rotating frame 12 along with the second rotating shaft 16;

[0033] Furthermore, a boss 9 is fixedly installed at one end of the cooler 5, and a baffle 10 is fixedly installed on the boss 9. The baffle 10 is adapted to the locking ring 14.

[0034] Therefore, when it is necessary to close the cooling chamber, the rotating frame 12 is rotated in the direction of the cooler 5, and the locking ring 14 is rotated at the same time so that the locking ring 14 is hooked on the baffle 10. Then the rotating frame 12 is rotated in the opposite direction until the locking ring 14 and the baffle 10 are tightly abutted, so that the locking ring 14 and the baffle 10 are abutted and locked, thereby closing the cooling chamber.

[0035] When it is necessary to open the cooling chamber, first rotate the rotating frame 12 toward the cooler 5 until the locking ring 14 disengages from the baffle 10. Then rotate the locking ring 14 to separate the locking ring 14 from the baffle 10. Finally, rotate the rotating frame 12 in the opposite direction to reset it.

[0036] In this application, the distance between the second rotating shaft 16 and the baffle 10 is greater than the distance between the first rotating shaft 15 and the baffle 10;

[0037] Furthermore, a pressing part 13 is provided at the end of the rotating frame 12 to facilitate operation by the staff.

[0038] To facilitate quick positioning during the installation of cooler 5 and housing 6, such as Figures 2-3 As shown, a positioning block 8 is fixedly installed on the top of the inner wall of the cover 6, and a positioning groove 17 adapted to the positioning block 8 is provided at the bottom of the cooler 5. Thus, when the cooler 5 and the cover 6 are installed, the positioning block 8 is inserted into the positioning groove 17 to achieve the initial positioning of the two.

[0039] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A cooling device for a diesel engine hydraulic pump set, characterized in that: include: A diesel engine (1) is connected to a hydraulic pump assembly (2), which has an oil circuit; Cooler (5) is connected to the oil line of the hydraulic pump assembly (2), and the cooler (5) has an oil inlet (3) for introducing hydraulic oil and an oil outlet (4) for discharging hydraulic oil. A cover (6) covers the back of the cooler (5), and a cooling cavity is formed between the cover (6) and the cooler (5); A locking mechanism for opening or closing the cooling chamber, the locking mechanism including a bracket (11) mounted on the cover (6), a first rotating shaft (15) fixedly mounted on the bracket (11), and a rotating frame (12) rotatably mounted on the first rotating shaft (15). A second rotating shaft (16) is rotatably mounted on the rotating frame (12), and a locking ring (14) is fixedly mounted on the second rotating shaft (16). A boss (9) is fixedly installed at one end of the cooler (5), and a baffle (10) is fixedly installed on the boss (9). The baffle (10) is adapted to the locking ring (14).

2. The diesel engine hydraulic pump cooling device according to claim 1, characterized in that: The distance between the second rotating shaft (16) and the baffle (10) is greater than the distance between the first rotating shaft (15) and the baffle (10).

3. A diesel engine hydraulic pump cooling device according to claim 2, characterized in that: The rotating frame (12) is provided with a pressing part (13) at its end.

4. A diesel engine hydraulic pump cooling device according to claim 3, characterized in that: A positioning block (8) is fixedly installed on the top of the inner wall of the cover (6), and a positioning groove (17) adapted to the positioning block (8) is provided at the bottom of the cooler (5).

5. A diesel engine hydraulic pump cooling device according to claim 1, characterized in that: The cover (6) is provided with a through hole (19), and a fan (7) is installed on the output end of the diesel engine (1). The fan (7) is located at the through hole (19).

6. A diesel engine hydraulic pump cooling device according to claim 5, characterized in that: A heat dissipation window (18) is provided at one end of the cooler (5).

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