CN211778260U - Hydraulic oil tank with circulation heating function - Google Patents

Abstract

The utility model relates to the field of hydraulic oil tanks, in particular to a hydraulic oil tank with a circulating heating function, which comprises an oil tank body, a heating spacer sleeve, a heater and a fluid circulating mechanism, wherein the heating spacer sleeve is positioned at one end inside the oil tank body, the end part of the heating spacer sleeve is detachably and fixedly arranged on the wall of the oil tank body, and hydraulic oil is arranged in the heating spacer sleeve; the heater is detachably inserted into the heating spacer sleeve, and the heating section of the heater is immersed in the hydraulic oil of the heating spacer sleeve; the oil liquid circulating mechanism is used for circulating hydraulic oil in the oil tank body; the utility model discloses a hydraulic tank can make the oil tank keep suitable operating temperature, and avoids local high temperature, makes hydraulic oil be heated more evenly, is showing the life who prolongs hydraulic oil, can realize self-heating and fluid circulation simultaneously, and degree of automation is showing and is improving.

Description

Hydraulic oil tank with circulation heating function

Technical Field

The utility model relates to a hydraulic tank field, a hydraulic tank of area circulation heating function specifically says so.

Background

Hydraulic drives are widely used on construction machinery. In northwest, northeast and northeast China, the lowest temperature is-20 ℃ to-40 ℃ all the year around. The temperature control in the working of the general hydraulic oil is better within the range of 20-60 ℃. When the hydraulic equipment operates at low temperature, the viscosity of hydraulic oil is high, the pipeline resistance is high, the self-absorption capacity of an oil pump is reduced, the pressure loss of a hydraulic system is increased, and the power loss is increased; when the equipment runs at low temperature, water in hydraulic oil is solidified, and the solidified water is attached to the surfaces of parts, an oil filter and the like of the hydraulic valve, so that the hydraulic valve is possibly clamped, the oil filter is blocked, and a hydraulic system cannot normally work; the rubber sealing material in the hydraulic system shrinks, hardens and the like at low temperature, which reduces the sealing performance and even leads to sealing failure. At present, the hydraulic oil tank that exists, the heater directly contacts with the hydraulic oil in the hydraulic oil tank, and does not have the hydraulic oil circulation function, can cause the local high temperature of hydraulic oil tank to cause fluid oxidation rotten, has greatly shortened the life of hydraulic oil to present hydraulic oil tank heating degree of automation is lower, and the influence is used and is experienced. Therefore, how to overcome the above technical problems and disadvantages is a problem to be solved.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to overcoming the drawbacks described in the background art, and therefore to provide a hydraulic oil tank with a circulating heating function, which can maintain an appropriate operating temperature of the oil tank, avoid local high temperature, make hydraulic oil heated more uniformly, and significantly prolong the service life of hydraulic oil.

In order to achieve the purpose of the invention, the technical scheme of the utility model is as follows: a hydraulic oil tank with a circulating heating function comprises an oil tank body; the heating spacer bush is positioned at one end inside the oil tank body, the end part of the heating spacer bush is detachably and fixedly arranged on the wall of the oil tank body, and hydraulic oil is arranged in the heating spacer bush; the heater is detachably inserted into the heating spacer sleeve, and a heating section of the heater is immersed in the hydraulic oil of the heating spacer sleeve; and the oil liquid circulating mechanism is used for circulating hydraulic oil in the oil tank body.

Further, the heating spacer is cylindrical, the cross section of the heating spacer is circular or regular polygon, the top of the heating spacer is detachably and fixedly connected with the heater through a flange, the outer diameter of the heating spacer can be adjusted according to the space of the oil tank body, and the larger the outer diameter of the heating spacer is, the larger the heat dissipation area is.

Furthermore, the oil suction end of the oil liquid circulating mechanism is positioned on the side wall of the oil tank body at one end of the heating spacer sleeve, and the oil return end of the oil liquid circulating mechanism is arranged on the wall of the oil tank body far away from one end of the heating spacer sleeve.

Further, fluid circulation mechanism is including inhaling oil pipe, circulating pump, returning oil pipe and oil return filter, the entrance point of inhaling oil pipe is located the oil tank body lateral wall lower part that sets up heating spacer sleeve one end, and the external oil return filter of export that returns oil pipe, oil return filter is fixed to be set up in the oil tank body top of keeping away from heating spacer sleeve one end, advances oil pipe and returns to establish ties between the oil pipe and set up the circulating pump.

Further, still include temperature sensor and controller, temperature sensor is located inside the oil tank body, and temperature sensor's signal feedback is to the controller, and the start-stop of heater and circulating pump is controlled by the controller.

The utility model discloses a hydraulic tank of area circulation heating function's beneficial effect:

1. the utility model discloses a take hydraulic tank of circulation heating function is provided with heating spacer and fluid circulation mechanism, and hydraulic oil is heated evenly, can not cause this internal hydraulic oil local high temperature of oil tank and arouse that hydraulic oil oxidation is rotten, can show the life who prolongs hydraulic oil.

2. The utility model discloses a take hydraulic tank of circulation heating function, the packing medium is hydraulic oil in the heating spacer, and the heater is through the hydraulic oil in the heating spacer with heat transfer for the heating spacer, avoids this internal work hydraulic oil of heater direct heating oil tank, in extension hydraulic oil life-span, has also increased heat radiating area, and is safer than adopting other heat transfer medium.

3. The utility model discloses a take hydraulic tank of circulation heating function adopts opening of controller and temperature sensor control heater and circulating pump to open and stop, can realize more intelligence, controls the temperature of hydraulic oil more effectively, and hydraulic tank's heating degree of automation is showing and is improving.

Drawings

Fig. 1 is a schematic structural diagram of a hydraulic oil tank with a circulation heating function according to the present invention.

In the figure: 1-oil tank body, 2-heating spacer bush, 3-heater, 4-oil circulation mechanism, 401-oil suction pipe, 402-circulation pump, 403-oil return pipe, 404-oil return filter and 5-temperature sensor.

Detailed Description

The hydraulic oil tank with circulation heating function according to the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "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 only for convenience of description and 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.

Referring to fig. 1, the hydraulic oil tank with the circulating heating function of the embodiment includes an oil tank body, a heating spacer, a heater and an oil circulating mechanism; the heating spacer bush is positioned at one end inside the oil tank body and is generally arranged at one end of the top of the oil tank body, the end part of the heating spacer bush is detachably and fixedly arranged on the wall of the oil tank body, and hydraulic oil is arranged in the heating spacer bush; the heater can be dismantled to peg graft and set up in the heating spacer, and the heating section submergence of heater in the hydraulic oil of heating spacer, and the effect that increases the heating spacer between the hydraulic oil of heater and oil tank body effectively avoids this internal hydraulic oil of oil tank and heater direct contact to cause local high temperature to influence hydraulic oil life.

The oil circulating mechanism is used for circulating hydraulic oil in the oil tank body, the oil suction end of the oil circulating mechanism is located on the side wall of the oil tank body, which is provided with one end of the heating spacer bush, and the oil return end of the oil circulating mechanism is arranged on the wall of the oil tank body, which is far away from one end of the heating spacer bush.

In this embodiment, referring to fig. 1, the oil circulating mechanism includes an oil suction pipe, a circulating pump, an oil return pipe and an oil return filter, the inlet end of the oil suction pipe is located at the lower portion of the side wall of the oil tank body where one end of the heating spacer is located, the outlet of the oil return pipe is externally connected with the oil return filter, in order to prevent impurities from being mixed in the oil tank and polluting the system, the oil return filter is fixedly arranged at the top of the oil tank body far away from one end of the heating spacer, the circulating pump is arranged between the oil inlet pipe and the oil return pipe in series. After the heater is electrified, the temperature of the hydraulic oil in the heating spacer sleeve rises through the temperature of the hydraulic oil in the heating spacer sleeve, so that the temperature of the oil liquid around the heating spacer sleeve and the outside of the heating spacer sleeve rises, and under the action of the circulating pump, the oil liquid in the whole tank can uniformly and stably pass through the heating spacer sleeve, and the temperature of the whole oil liquid is improved through heat transfer.

In this embodiment, the heating spacer is a cylinder whose cross section is circular, and the top of the heating spacer is detachably and fixedly connected with the heater through a flange, no sealing ring is added between the heater and the heater spacer, and two flange surfaces are mechanically-bonded and can be communicated with the outside when a certain pressure is applied. Avoid heating spacer internal pressure rising and taking place danger because of dissolved air, moisture decomposition by heating when heating the hydraulic oil in the spacer. The heating spacer bush is generally made of thin-wall steel pipes, and then a pressing sealing experiment is carried out to ensure the sealing performance of the heating spacer bush. The outer diameter of the heating spacer can be adjusted according to the space of the oil tank body, the larger the outer diameter of the heating spacer is, the larger the heat dissipation area is, and in order to increase the sealing property, a sealing ring is additionally arranged at the bottom of a flange of the heating spacer when the heating spacer is installed on the oil tank body, so that the sealing between the oil tank body and the heater spacer is ensured. The heater spacer is inserted from one end of the upper part of the oil tank body, and the bottom of the heater spacer is 150mm away from the bottom plate of the oil tank body by 100 mm.

Before the heater is placed in the heater spacer bush, hydraulic oil is added into the heating spacer bush and serves as a medium for transferring heat. And determining the power of the selected heater according to the parameters of the volume, the heating time, the heating temperature and the like of the oil tank body. The non-heating area is left at the upper end of the heater, so that the heating area is prevented from being exposed and burnt down due to insufficient oil in the heating spacer sleeve, the number of the heating rods can be increased for meeting the total heating power, and the phenomenon that the temperature surface of the heating rod is too high to accelerate the oxidation and deterioration of hydraulic oil in the heating spacer sleeve due to the fact that the power of a single heating rod is improved is avoided.

In order to realize the automatic control of the oil temperature of the hydraulic oil tank, the hydraulic oil tank further comprises a temperature sensor and a controller, the temperature sensor is installed near the internal heating spacer sleeve of the oil tank body, the oil temperature in the oil tank body can be detected in real time, the signal of the temperature sensor is fed back to the controller, and the start and stop of the heater and the circulating pump are automatically controlled by the controller.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of the terms "a" or "an" and the like in the description and in the claims of this application do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

Exemplary embodiments of the present invention have been described in detail with reference to the preferred embodiments, however, it will be understood by those skilled in the art that various changes and modifications may be made to the specific embodiments described above, and various combinations of the technical features and structures proposed by the present invention may be made without departing from the concept of the present invention.

Claims (5)

1. The utility model provides a hydraulic tank of area circulation heating function which characterized in that: comprises that

An oil tank body;

the heating spacer bush is positioned at one end inside the oil tank body, the end part of the heating spacer bush is detachably and fixedly arranged on the wall of the oil tank body, and hydraulic oil is arranged in the heating spacer bush;

the heater is detachably inserted into the heating spacer sleeve, and a heating section of the heater is immersed in the hydraulic oil of the heating spacer sleeve; and

and the oil liquid circulating mechanism is used for circulating hydraulic oil in the oil tank body.

2. The hydraulic oil tank with the circulation heating function according to claim 1, characterized in that: the heating spacer is cylindrical, the cross section of the heating spacer is circular or regular polygon, and the top of the heating spacer is detachably and fixedly connected with the heater through a flange.

3. The hydraulic oil tank with the circulation heating function according to claim 1, characterized in that: the oil suction end of the oil liquid circulating mechanism is positioned on the side wall of the oil tank body, which is provided with one end of the heating spacer bush, and the oil return end of the oil liquid circulating mechanism is arranged on the wall of the oil tank body, which is far away from one end of the heating spacer bush.

4. The hydraulic oil tank with the circulation heating function according to claim 1 or 3, characterized in that: the oil liquid circulation mechanism comprises an oil suction pipe, a circulating pump, an oil return pipe and an oil return filter, wherein the inlet end of the oil suction pipe is positioned at the lower part of the side wall of the oil tank body, which is provided with one end of the heating spacer bush, the outlet of the oil return pipe is externally connected with the oil return filter, the oil return filter is fixedly arranged on the upper part of the oil tank body, which is far away from one end of the heating spacer bush, and the oil suction pipe and the oil return.

5. The hydraulic oil tank with the circulation heating function according to claim 4, characterized in that: still include temperature sensor and controller, temperature sensor is located inside the oil tank body, and temperature sensor's signal feedback gives the controller, and opening of heater and circulating pump is controlled by the controller.

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