CN210686517U

CN210686517U - Self-circulation cooler

Info

Publication number: CN210686517U
Application number: CN201921773426.5U
Authority: CN
Inventors: 张驰; 支莎莎
Original assignee: Nantong Asn Hydraulic Technology Co ltd
Current assignee: Nantong Asn Hydraulic Technology Co ltd
Priority date: 2019-10-22
Filing date: 2019-10-22
Publication date: 2020-06-05
Anticipated expiration: 2029-10-22

Abstract

The utility model relates to a self-circulation cooler, which comprises a cooler core, a fan and a shell, wherein the fan is connected with a double-shaft motor, a motor shaft of the double-shaft motor is connected with a circulating pump, the circulating pump is connected with the tail part of the double-shaft motor and is provided with an embedded shaft sleeve matched with the motor shaft, the circulating pump is a cycloid pump and comprises a pump cover, an inner gear, an outer gear and a pump body, an oil inlet groove, an oil outlet groove and a shaft sleeve groove are arranged in the pump body, the embedded shaft sleeve is used for rotating and driving the circulating pump to work, an oil pipe is arranged between a second oil outlet of the circulating pump and a first oil inlet of the cooler core, the independent circulating pump can be used as an independent cooling unit, so that the cooling performance is stable, the vibration and the pulse pressure damage of a hydraulic system are avoided, thereby ensuring cooling performance and longer service life.

Description

Self-circulation cooler

Technical Field

The utility model relates to a self-loopa cooler belongs to hydraulic system cooler technical field.

Background

The hydraulic oil is a hydraulic medium of a hydraulic system and plays roles of energy transfer, wear resistance, system lubrication, corrosion resistance, rust resistance and the like, and the hydraulic system cools the hydraulic oil through a cooler in an oil way, so that the viscosity-temperature performance and the reasonable service performance of the hydraulic oil are ensured. Cooling heat exchanger among prior art hydraulic system generally adopts the forced air cooling cooler, including having the ventilation, lead to the cooler core of oil passageway, the fan and the protective housing of setting at cooler core back etc, cool down to the hydraulic oil forced air cooling through the cooler core through the fan, when hydraulic system relates to circulative cooling in order to guarantee cooling performance, it is more not only the pipeline with the cooler setting in circulating line, and control difficulty, the energy consumption is great, the cooler receives system's vibrations and the fragile cooler core of pulse pressure, lead to the life-span to reduce, consequently, it is urgent to wait to develop a cooling heat exchanger with independent circulating pump, solve occupation space and the great problem of product size when circulating pump and cooler combine simultaneously.

SUMMERY OF THE UTILITY MODEL

The utility model aims at prior art's defect, provide a self-loopa cooler, adopt independent circulating pump, can regard as independent cooling unit to use, make cooling performance stable, avoid hydraulic system vibrations and pulse pressure harm to through biax motor control cooler fan and circulating pump work, reduce the product size with the embedded bushing connection of circulating pump, thereby guarantee cooling performance and longer life.

The utility model discloses a realize through following technical scheme:

a self-circulation cooler comprises a cooler core body, a fan arranged on the back of the cooler core body and a shell outside the fan, wherein a first oil inlet and a first oil outlet are formed in two sides of the cooler core body respectively;

the circulating pump is the cycloid pump, the circulating pump includes pump cover, internal gear, external gear and the pump body, the pump cover both sides link to each other with the biax motor and the pump body respectively, the external gear is located between the pump cover and the pump body, the internal gear is located the external gear inside, and inside is equipped with the keyway, be equipped with oil feed tank, oil outlet groove and axle sleeve groove in the pump body, oil feed tank and oil outlet groove are located external gear and internal gear one side, and communicate with second oil inlet and second oil-out respectively, embedded axle sleeve tip passes pump cover and internal gear and arranges the axle sleeve inslot in, the inside motor shaft shape cooperation with the biax motor of embedded axle sleeve, and be equipped with the square key, embedded axle sleeve outside with internal gear Xinzhou cooperation, and with the keyway.

The utility model has the advantages that:

(1) the utility model is arranged in a hydraulic system, is provided with an independent circulating pump, is connected with a first oil inlet of a cooler core body and a second oil outlet of the circulating pump through pipelines to realize self-circulation, can be used as an independent cooling unit to stabilize the cooling performance, and avoids the vibration and pulse pressure damage of the hydraulic system;

(2) the circulating pump of the utility model adopts the motor shaft of the double-shaft motor to drive the fan to cool air and the circulating pump to pump oil to work, thereby having compact structure and reducing the control difficulty;

(3) the utility model adopts the matching of the embedded shaft sleeve and the motor shaft of the double-shaft motor, thereby avoiding the problems of larger product size and higher installation cost caused by the outward extension of the motor shaft and the need of a shaft coupling in the traditional connection;

(4) the utility model discloses a circulating pump adopts pump cover, internal gear, external gear and pump body constitution cycloid pump structure, makes the pump cover connect at the biax motor afterbody, and the motor shaft of biax motor passes through the rotation of square key driving shaft sleeve, and the axle sleeve passes through circular key driving internal gear synchronous revolution, realizes cycloid pump oil work, reducible product size and weight, and the focus is stable and simple to operate to guarantee cooling performance and longer life.

Drawings

Fig. 1 is a front perspective view of the present invention.

Fig. 2 is a rear perspective view of the present invention.

Fig. 3 is a bottom assembly view of the circulation pump of the present invention.

Fig. 4 is a top view assembly view of the circulation pump of the present invention.

Fig. 5 is a top view of the circulation pump of the present invention.

Fig. 6 is a cross-sectional view in the direction AA of fig. 5.

Fig. 7 is a cross-sectional view in the BB direction of fig. 5.

The labels in the figure are: the cooler core body 1, the fan 2, the shell 3, a first oil inlet 4 and a first oil outlet 5, the circulating pump 6, an embedded shaft sleeve 7, a second oil inlet 8 and a second oil outlet 9, the oil pipe 10, the motor base 11, the pump cover 61, the internal gear 62, the external gear 63 and the pump body 64, the convex ring 12, the boss 13, the abdicating groove 14, the bolt 15, the sealing groove 16, the sealing ring 17, the oil inlet groove 18, the oil outlet groove 19 and the shaft sleeve groove 20, the key groove 21, the square key 22, the round key 23, the flange 24, the pressing ring 25 and the clamp 26, the double-shaft motor 27 and the rubber buffer 28.

Detailed Description

The following describes the present invention with reference to the accompanying drawings.

Referring to fig. 1 and 2, a self-circulation cooler comprises a cooler core body 1, a fan 2 arranged at the back of the cooler core body 1 and a shell 3 outside the fan 2, wherein a first oil inlet 4 and a first oil outlet 5 are respectively arranged at two sides of the cooler core body 1, the fan 2 is connected with a double-shaft motor 27, a motor shaft of the double-shaft motor 27 is connected with a circulating pump 6, the circulating pump 6 is connected with the tail of the double-shaft motor 27 and is provided with an embedded shaft sleeve 7 matched with the motor shaft, the embedded shaft sleeve 7 is used for rotating and driving the circulating pump 6 to work, a second oil inlet 8 and a second oil outlet 9 are arranged on the circulating pump 6, and an oil pipe 10 is arranged between the second oil outlet 9 and the first oil inlet 4;

a motor base 11 is arranged between the double-shaft motor 27 and the bottom of the shell 3. The bottom of the cooler is connected with the motor base 11 to ensure the gravity center stability of the cooler and reduce the vibration of the cooler caused by a hydraulic system.

Referring to fig. 3 to 7, the circulation pump 6 is a gerotor pump. Adopt the cycloid pump to be connected with biax motor 27, reducible product occupation space, and saved weight, the cooler focus is stable when making it with biax motor 27 rear connection, and the self-loopa cooler integral erection of being convenient for increases the practicality.

The circulating pump 6 comprises a pump cover 61, an inner gear 62, an outer gear 63 and a pump body 64, wherein two sides of the pump cover 61 are respectively connected with the double-shaft motor 27 and the pump body 64, the outer gear 63 is positioned between the pump cover 61 and the pump body 64, the pump cover 61 is provided with a convex ring 12 and a plurality of bosses 13, rubber buffer parts 28 are arranged in the bosses 13, abdicating grooves 14 are arranged outside the pump body 64, bolts 15 are arranged in the abdicating grooves 14, and the bottoms of the bolts 15 penetrate through the pump body 64, the pump cover 61 and the rubber buffer parts 28 to be connected with the double-;

the convex ring 12 is used for being clamped with the end face of the double-shaft motor 27, the pump body 64 is smaller in size structure due to the abdication groove 14, the circulating pump 6 is connected and installed by the bolt 15 penetrating through the pump body 64 and the pump cover 61 and the double-shaft motor 27, and the rubber buffer 28 in the boss 13 is used for buffer connection, so that reliable installation is guaranteed;

the pump cover 61 is provided with a sealing groove 16, and a sealing ring 17 is arranged between the sealing groove 16 and the pump body 64. The sealing performance when pump cover 61 and pump body 64 are connected is improved by seal ring 17.

The internal gear 62 is positioned inside the external gear 63 and internally provided with a key groove 21, the internal gear 62 and the external gear 63 are in differential gear and eccentric meshing, the pump body 64 is internally provided with an oil inlet tank 18, an oil outlet tank 19 and a shaft sleeve tank 20, the oil inlet tank 18 and the oil outlet tank 19 are positioned on one sides of the external gear 63 and the internal gear 62 and are respectively communicated with a second oil inlet 8 and a second oil outlet 9, the end part of the embedded shaft sleeve 7 penetrates through the pump cover 61 and the internal gear 62 to be arranged in the shaft sleeve tank 20, the inside of the embedded shaft sleeve 7 is matched with the motor shaft shape of the double-shaft motor 27 and is provided with a square key 22, the outside of the embedded shaft sleeve 7 is matched with the internal gear 62 in the;

the external portion of embedded axle sleeve 7 is equipped with flange 24, flange 24 be located internal gear 62 one side and with the pump cover 61 between be equipped with clamping ring 25 and clamp 26, be equipped with the recess on the clamping ring 25, and the inner wall cross-section is the V-arrangement structure, adopt flange 24 and the installation of the embedded axle sleeve 7 of the spacing assurance in internal gear 62 one side, through the fixed clamping ring 25 of clamp 26 between embedded axle sleeve 7 and the pump cover 61, take the clamping ring 25 that the inner wall cross-section is V-arrangement and recess, play shock attenuation resistance to compression effect when making double-shaft motor 27 be connected with pump cover 61.

The utility model discloses a theory of operation does:

the second oil inlet 8 and the first oil outlet 5 are connected in the oil circuit of the hydraulic system, by opening the double-shaft motor 27, one motor shaft of the double-shaft motor 27 drives the embedded shaft sleeve 7 to synchronously rotate through the square key 22, the embedded shaft sleeve 7 drives the inner gear 62 to synchronously rotate through the round key 23 to realize the oil pumping work of the circulating pump 6, so that the hydraulic oil enters the oil pipe 10 from the second oil outlet 9 and enters the oil circuit of the cooler core body 1 through the first oil inlet 4, the other motor shaft of the double-shaft motor 27 drives the fan 2 to rotate, the hydraulic oil passing through the cooler core body 1 is cooled by air cooling and enters the hydraulic system from the first oil outlet 5, because the utility model has the independent circulating pump 6, the first oil inlet 4 of the cooler core body 1 and the second oil outlet 9 of the circulating pump 6 are connected through the pipeline to realize self-circulation, and can be used as, the damage of vibration and pulse pressure of a hydraulic system is avoided;

the working principle of the circulating pump 6 is as follows: the hydraulic oil of the second oil inlet 8 enters the oil inlet groove 18, the oil inlet groove 18 and the oil outlet groove 19 are sealed by the pump cover 61 to form an oil inlet area and an oil outlet area which pass through the inner gear 62 and the outer gear 63, the inner gear 62 is driven to rotate through the round key 23 embedded with the shaft sleeve 7, the inner gear 62 is six teeth, the outer gear 63 is seven teeth, the inner gear 62 and the outer gear 63 are in differential teeth and are eccentrically meshed to form a sealed volume, the sealed volume of the inner gear 62 and the outer gear 63 is gradually increased along with the rotation of the inner gear 62 to form local vacuum, the hydraulic oil entering the oil inlet area is sucked into the sealed volume, the sealed volume filled with the oil is gradually reduced along with the continuous rotation of the inner gear 62, the oil is extruded, enters the oil outlet area and is discharged from the second oil;

circulating pump 6 adopts embedded axle sleeve 7 and biax motor 27's motor shaft cooperation, when avoiding traditional connection, the motor shaft is overhanging and need the shaft coupling to lead to the product size great, install the higher problem of this, pump cover 61 is connected at biax motor 27 afterbody, biax motor 27's motor shaft is rotatory through square key 22 drive axle sleeve, the axle sleeve passes through circular key 23 drive internal gear 62 synchronous revolution, realize cycloid pump oil work, reducible product size and weight, the focus is stable and simple to operate, thereby to sum up guarantee cooling performance and longer life.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a self-circulation cooler, includes the cooler core, sets up in the fan and the outside shell of fan at cooler core back, cooler core both sides are equipped with first oil inlet and first oil-out respectively, its characterized in that, the fan is connected with the biax motor, the motor shaft of biax motor is connected with the circulating pump, the circulating pump links to each other with the biax motor afterbody, and is equipped with the embedded axle sleeve with motor shaft complex, embedded axle sleeve is used for rotatory, drive circulating pump work, is equipped with second oil inlet and second oil-out on the circulating pump, be equipped with oil pipe between second oil-out and the first oil inlet.

2. The self-circulating cooler of claim 1, wherein a motor mount is provided between the dual-shaft motor and the bottom of the housing.

3. A self-circulating cooler according to claim 1 or 2, wherein the circulating pump is a gerotor pump.

4. The self-circulation cooler according to claim 3, wherein the circulation pump includes a pump cover, an internal gear, an external gear, and a pump body, the pump cover is connected to the dual-shaft motor and the pump body at both sides, the external gear is located between the pump cover and the pump body, the internal gear is located inside the external gear and has a key groove inside, an oil inlet groove, an oil outlet groove, and a shaft sleeve groove are provided in the pump body, the oil inlet groove and the oil outlet groove are located at one side of the external gear and the internal gear and are communicated with the second oil inlet and the second oil outlet, respectively, the end of the embedded shaft sleeve penetrates through the pump cover and the internal gear and is located in the shaft sleeve groove, the interior of the embedded shaft sleeve is matched with the motor shaft of the dual-shaft motor in shape and is provided with a square key, the.

5. The self-circulation cooler according to claim 4, wherein the pump cover is provided with a convex ring and a plurality of bosses, rubber buffer members are arranged in the bosses, abdicating grooves are arranged outside the pump body, bolts are arranged in the abdicating grooves, and bottoms of the bolts penetrate through the pump body, the pump cover and the rubber buffer members and are connected with the double-shaft motor.

6. The self-circulation cooler according to claim 4, wherein the pump cover is provided with a sealing groove, and a sealing ring is arranged between the sealing groove and the pump body.

7. The self-circulation cooler according to claim 4, wherein a flange is arranged outside the embedded shaft sleeve, the flange is positioned on one side of the inner gear, a pressing ring and a clamping hoop are arranged between the flange and the pump cover, a groove is formed in the pressing ring, and the cross section of the inner wall is of a V-shaped structure.