Hydraulic pump with heat dissipation protection function

Abstract

The hydraulic pump with the heat dissipation protection function comprises a pump base, a pump shell is arranged at the top of the pump base, a pump body is arranged on the inner side of the pump shell, a heat exchange pipe cavity is formed in the inner wall of the pump shell, and connecting blocks used for leading in cooling liquid are symmetrically arranged on one side of the pump shell. A communicating hole used for communicating with the heat exchange pipe cavity is formed in the top of the connecting block, a connecting nozzle is arranged at the top of the communicating hole, and an intercepting component used for filtering cooling liquid impurities is arranged at the bottom of the connecting nozzle. The heat exchange pipe cavity is formed in the position, at the rotating shaft, of the pump shell, the connecting blocks symmetrically arranged on the outer side of the pump shell are used for connecting external cooling liquid with the heat exchange pipe cavity, the cooling liquid circulates in the heat exchange pipe cavity, the intercepting components in the communicating holes can intercept impurities in the cooling liquid, and therefore the temperature of the rotating shaft of the pump shell is lowered, and the cooling effect is improved. The pump body is prevented from working at high temperature, so that aging and abrasion of equipment are relieved, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic pumps, in particular to a hydraulic pump with a heat dissipation protection function. Background Art

[0002] Hydraulic pumps transport fluids by volume changes, which is usually achieved through mechanical movement. Existing hydraulic pumps include plunger pumps, gear pumps, and vane pumps. Vane pumps, also known as centrifugal pumps, use rotating impellers to drive the movement of liquid. The rotating impeller throws the liquid out, thereby generating liquid flow. An electric motor is required to drive the pump shaft to rotate the impeller. The pump shaft generated by the rotational friction transfers the heat to the pump casing. However, the heat dissipation of the pump casing is slow, causing the pump shaft to always remain in a high temperature state, which will lead to aging and wear of the pump body. In order to solve the problem of slow heat dissipation of the pump casing, a new type of hydraulic pump with heat dissipation protection function is needed. Utility Model Content

[0003] The purpose of the utility model is to provide a hydraulic pump with a heat dissipation protection function to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hydraulic pump with heat dissipation protection function, comprising a pump seat, a pump shell is arranged on the top of the pump seat, a pump body is arranged on the inner side of the pump shell, a heat exchange tube cavity is arranged on the inner wall of the pump shell, a connecting block for passing coolant is symmetrically arranged on one side of the pump shell, a connecting hole for connecting to the heat exchange tube cavity is opened on the top of the connecting block, a connecting nozzle is arranged on the top of the connecting hole, and an intercepting member for filtering impurities in the coolant is arranged at the bottom of the connecting nozzle.

[0005] Preferably, the intercepting member comprises a filter screen, a plug block is fixedly connected to the bottom of the filter screen, a sleeve is provided at the bottom end of the plug block, positioning blocks are symmetrically provided on the bottom sides of the sleeve, and the sides of the positioning blocks are fixedly connected to the inner wall of the connecting hole.

[0006] Preferably, a movable ball is inserted and connected at the bottom of the plug block and located in the inner cavity of the sleeve, a pressure plate is fixedly connected to the bottom of the movable ball, a positioning column is fixedly connected to the bottom of the pressure plate, a compression spring is sleeved on the outer side of the positioning column, and the bottom end of the compression spring is fixedly connected to the inner wall of the sleeve.

[0007] Preferably, the pressure plate, the positioning column and the compression spring are all arranged in the inner cavity of the sleeve.

[0008] Preferably, a water pipe is provided at one end of the pump casing.

[0009] Preferably, a connecting plate is provided at one end of the pump body away from the water pipe.

[0010] Technical effects and advantages of the utility model:

[0011] The utility model provides a heat exchange tube cavity at the pump casing at the rotating shaft, and the connecting blocks symmetrically arranged on the outside of the pump casing are used to connect the external coolant and the heat exchange tube cavity, so that the coolant flows through the heat exchange tube cavity, and the intercepting components in the connecting holes can intercept impurities in the coolant, and the coolant conducts heat, thereby reducing the temperature of the pump casing rotating shaft, avoiding the pump body from working under high temperature conditions, thereby slowing down the aging and wear of the equipment and extending the use of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0013] Figure 2 It is a cross-sectional view of the pump casing of the utility model.

[0014] Figure 3 For this utility model Figure 2 A magnified view of the structure at center.

[0015] In the figure: 1. Pump seat; 2. Pump casing; 201. Water pipe; 3. Connection block; 301. Connecting hole; 4. Pump body; 401. Connection plate; 5. Heat exchange tube cavity; 6. Positioning block; 7. Connection nozzle; 8. Filter screen; 801. Insert block; 9. Sleeve; 901. Active ball; 902. Pressure plate; 903. Positioning column; 904. Compression spring. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] The utility model provides Figure 1-3 A hydraulic pump with heat dissipation protection function shown in the figure comprises a pump seat 1, a pump housing 2 is arranged on the top of the pump seat 1, a pump body 4 is arranged on the inner side of the pump housing 2, a heat exchange cavity 5 is arranged on the inner wall of the pump housing 2, and a connection block 3 for introducing a coolant is symmetrically arranged on one side of the pump housing 2;

[0018] It should be noted that the pump seat 1, the pump casing 2 and the pump body 4 constitute an overall reference model IHF40-25-125 centrifugal pump working principle, the heat exchange tube cavity 5 is in a coil state, the external pressured normal temperature coolant enters from a connection block 3, and then flows out from another connection block 3, taking out the heat, one end of the pump casing 2 is provided with a water pipe 201 for water outlet, and the end of the pump body 4 away from the water pipe 201 is provided with a connecting disk 401, and the connecting disk 401 is used to install a belt pulley, so that the motor drives the pump body 4 to work through the belt pulley;

[0019] A connecting hole 301 for connecting with the heat exchange tube cavity 5 is provided at the top of the connecting block 3, and a connecting nozzle 7 is provided at the top of the connecting hole 301;

[0020] It should be noted that a thread is provided on the outer side of the bottom of the connection nozzle 7, and a corresponding thread is provided on the inner wall of the top of the communicating hole 301. The connection nozzle 7 is fixed to the top of the connection block 3 by threaded rotation. The connection block 3 is welded and fixed to the pump housing 2. The top of the connection nozzle 7 has an annular protrusion for connecting the coolant inlet pipe. The connection nozzles 7 on the top of the connection block 3 are symmetrically arranged, one of which is used to connect the coolant inlet pipe, and the other is used to connect the coolant outlet pipe.

[0021] The bottom of the connection nozzle 7 is provided with an interception member for filtering impurities in the coolant;

[0022] Specifically, the interception member includes a filter screen 8, the bottom of the filter screen 8 is fixedly connected with an insert block 801, the bottom end of the insert block 801 is provided with a sleeve 9, the bottom side of the sleeve 9 is symmetrically provided with a positioning block 6, and the side of the positioning block 6 is fixedly connected to the inner wall of the communicating hole 301;

[0023] It should be noted that the middle part of the filter screen 8 is a supporting frame, the filtering radius of the filter screen 8 is 0.56 mm, the plug block 801 is welded and fixed to the middle part of the filter screen 8, the sleeve 9 is welded and fixed to the positioning block 6, the positioning block 6 is welded and fixed to the inner wall of the connecting hole 301, and the coolant passes through the filter screen 8 and flows into the heat exchange tube cavity 5 from both sides of the sleeve 9 through the gap between the positioning blocks 6;

[0024] Specifically, a movable ball 901 is inserted and connected at the bottom of the plug block 801 and located in the inner cavity of the sleeve 9, a pressure plate 902 is fixedly connected to the bottom of the movable ball 901, a positioning column 903 is fixedly connected to the bottom of the pressure plate 902, a compression spring 904 is sleeved on the outer side of the positioning column 903, and the bottom end of the compression spring 904 is fixedly connected to the inner wall of the sleeve 9;

[0025] It should be noted that the pressure plate 902, the positioning column 903 and the compression spring 904 are all arranged in the inner cavity of the sleeve 9, and a cylindrical hole for the insertion of the plug block 801 is opened on the top of the movable ball 901. The pressure plate 902 and the movable ball 901 are welded and fixed, and the positioning column 903 and the pressure plate 902 are welded and fixed. During the rotation of the connecting nozzle 7, the inner cavity of the connecting nozzle 7 presents a trumpet expansion shape, and the downward moving connecting nozzle 7 squeezes the filter screen 8, and the filter screen 8 is in close contact with the top of the sleeve 9. The movable ball 901 squeezes the pressure plate 902, and the compression spring 904 is squeezed, so that the filter screen 8 is in close contact with the bottom of the connecting nozzle 7. After the filter screen 8 is blocked, the connecting nozzle 7 is unscrewed, and the compression spring 904 pops the movable ball 901 out of the sleeve 9, and the filter screen 8 is pushed out of the connecting hole 301, and the filter screen 8 is taken out for flushing and cleaning.

[0026] In actual use, a heat exchange tube cavity 5 is provided at the pump casing 2 at the rotating shaft, and the connecting block 3 symmetrically arranged on the outside of the pump casing 2 is used to connect the external coolant and the heat exchange tube cavity 5, so that the coolant flows in the heat exchange tube cavity 5, and the filter screen 8 in the connecting hole 301 can intercept impurities in the coolant. The flowing coolant takes out the heat generated by the pump body 4, thereby reducing the temperature at the rotating shaft of the pump casing 2, avoiding the pump body 4 from working under high temperature conditions, playing a heat dissipation protection function, and then slowing down the aging and wear of the hydraulic pump and extending the use of the equipment.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydraulic pump with heat dissipation protection function, comprising a pump seat (1), a pump housing (2) is arranged on the top of the pump seat (1), a pump body (4) is arranged on the inner side of the pump housing (2), and is characterized in that: The inner wall of the pump housing (2) is provided with a heat exchange tube cavity (5), and a connection block (3) for introducing coolant is symmetrically provided on one side of the pump housing (2). A connecting hole (301) for connecting with the heat exchange tube cavity (5) is provided at the top of the connecting block (3), and a connecting nozzle (7) is provided at the top of the connecting hole (301), and an intercepting component for filtering coolant impurities is provided at the bottom of the connecting nozzle (7).

2. A hydraulic pump with heat dissipation protection function according to claim 1, characterized in that: The intercepting member comprises a filter screen (8), the bottom of the filter screen (8) is fixedly connected to an insert block (801), the bottom end of the insert block (801) is provided with a sleeve (9), the bottom side of the sleeve (9) is symmetrically provided with a positioning block (6), and the side of the positioning block (6) is fixedly connected to the inner wall of the connecting hole (301).

3. A hydraulic pump with heat dissipation protection function according to claim 2, characterized in that: A movable ball (901) is inserted and connected at the bottom of the plug block (801) and located in the inner cavity of the sleeve (9), and a pressure plate (902) is fixedly connected to the bottom of the movable ball (901), and a positioning column (903) is fixedly connected to the bottom of the pressure plate (902). A compression spring (904) is sleeved on the outer side of the positioning column (903), and the bottom end of the compression spring (904) is fixedly connected to the inner wall of the sleeve (9).

4. A hydraulic pump with heat dissipation protection function according to claim 3, characterized in that: The pressure plate (902), the positioning column (903) and the compression spring (904) are all arranged in the inner cavity of the sleeve (9).

5. The hydraulic pump with heat dissipation protection function according to claim 1, characterized in that: A water delivery pipe (201) is provided at one end of the pump casing (2).

6. The hydraulic pump with heat dissipation protection function according to claim 1, characterized in that: A connecting plate (401) is provided at one end of the pump body (4) away from the water delivery pipe (201).

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