阅读说明：本技术 一种复合增压器及陶瓷压机 (Composite supercharger and ceramic press ) 是由 陈爱民 于 2020-07-03 设计创作，主要内容包括：本发明提供一种复合增压器包括：增压油缸,其具有增压油腔；增压活塞,其设置在所述增压油腔内；回程油腔,其设置在所述增压活塞内,在所述回程油腔内还设有回程活塞,所述回程活塞的一端固定在所述增压油缸上；当向回程油腔内注油时,所述增压活塞在所述增压油腔内作上下运动。本发明中所述复合增压器完成回程动作时所需要的压力油小于传统增压器的需要量；且所述复合增压器的回程时间短。(The present invention provides a composite supercharger comprising: a booster cylinder having a booster oil chamber; a booster piston disposed within the booster oil chamber; the return oil cavity is arranged in the boosting piston, a return piston is also arranged in the return oil cavity, and one end of the return piston is fixed on the boosting oil cylinder; when oil is injected into the return oil cavity, the pressurizing piston moves up and down in the pressurizing oil cavity. The required pressure oil of the composite supercharger is less than the required amount of the traditional supercharger when the composite supercharger finishes the return stroke action; and the return time of the compound supercharger is short.)

1. A compound supercharger, comprising:

a booster cylinder having a booster oil chamber;

a booster piston disposed within the booster oil chamber;

the return oil cavity is arranged in the boosting piston, a return piston is also arranged in the return oil cavity, and one end of the return piston is fixed on the boosting oil cylinder;

when oil is injected into the return oil cavity, the pressurizing piston moves up and down in the pressurizing oil cavity.

2. The compound booster of claim 1, wherein the boost cylinder comprises a first end cap, a booster cylinder, and a second end cap;

the first end cover is connected with one end of the supercharger cylinder barrel in a sealing mode; the second end cover is connected with the other end of the supercharger cylinder barrel in a sealing mode;

the supercharging piston comprises a supercharging piston body and a supercharging piston rod;

one end of the pressurizing piston rod is connected with the pressurizing piston body, and the pressurizing piston rod penetrates through the second end cover.

3. The compound booster of claim 2 wherein the return piston divides the return oil chamber into a lower return chamber and an upper return chamber that are sealed from each other;

the return piston comprises a return piston body, a return lower piston rod and a return upper piston rod;

one end of the return lower piston rod is fixed on the first end cover, and the other end of the return lower piston rod is connected with the return piston body; one end of the return upper piston rod is connected with the return piston body, and the other end of the return upper piston rod penetrates through the return oil cavity;

the return lower cavity and the return upper cavity are respectively communicated with a return oil way through a connecting oil duct.

4. The compound supercharger of claim 3, wherein the oil port of the connecting oil channel in the lower return cavity is close to the return piston body.

5. The compound booster of claim 3, wherein an oil port of the return upper chamber connecting an oil passage is adjacent to the return piston body.

6. The hybrid supercharger of claim 3, further comprising a reversing valve connected to the return oil path, wherein the reversing valve controls the oil inlet and outlet directions of the return lower chamber and the return upper chamber.

7. The compound supercharger of claim 1, wherein the compound supercharger is in communication with the main oil passage and the return oil passage via a transition plate.

8. The compound supercharger of claim 1, further comprising displacement detection means, the displacement detection means comprising:

a displacement sensor disposed on the outer shield; the probe is matched with the displacement sensor and arranged on the return upper piston rod; and the magnetic ring is sleeved on the probe.

9. The compound supercharger of claim 1, further comprising an air filter disposed on top of the outer shroud.

10. A ceramic press comprising the composite booster of any one of claims 1 to 9.

Technical Field

The invention belongs to the technical field of hydraulic presses, and particularly relates to a composite supercharger and a ceramic press.

Background

The conventional supercharger usually adopts a single-piston rod hydraulic cylinder structure, as shown in fig. 1, wherein a rod cavity 011 is a high-pressure output end connected to a main cylinder of a press, and a rod-less cavity 010 is a low-pressure input end connected to a main pump. Fig. 2 is a schematic diagram of hydraulic control of a conventional supercharger, and it can be seen from the diagram that the supercharging process of the conventional supercharger is as follows: when the fourth control valve 040 is energized, the main valve in the cartridge valve controlled by the fourth control valve 040 is opened, and pressure oil enters the rodless cavity 010 in the supercharger through the main valve; and the high-pressure oil in the rod cavity 011 in the supercharger enters the master cylinder through the cartridge valve controlled by the second control valve 020 (the second control valve 020 is electrified, and the main valve of the cartridge valve controlled by the second control valve is opened), and in the process, other valves are in a closed state. After the completion of the supercharging operation, the piston 030 in the supercharger has already extended a certain stroke, and if the next supercharging operation is to be performed, the piston 030 in the supercharger is required to perform a return stroke operation. As can be seen from fig. 2, the return process of the conventional supercharger is: the pressure oil enters the rod chamber 011 of the supercharger through the cartridge valve controlled by the third control valve 030 (the third control valve 030 is electrified, and the main valve of the cartridge valve controlled by the third control valve 030 is opened), and the hydraulic oil in the rodless chamber 010 of the supercharger enters the oil tank through the cartridge valves respectively controlled by the fifth control valve 050 and the sixth control valve 060 (the fifth control valve 050 and the sixth control valve 060 are electrified, and the main valve of the cartridge valve respectively controlled by the fifth control valve 030 and the sixth control valve 060 is opened), so that the piston 030 in the supercharger is reset, and the return stroke action is completed.

As can be seen from the above-mentioned return stroke process of the conventional supercharger, the piston 030 in the conventional supercharger is returned to push the piston 030 directly through the pressure oil entering the rod chamber 011, and no hydraulic oil in the rod chamber 010 is discharged directly to the oil tank, and a large amount of pressure oil is consumed in this process, and the return stroke time of the piston 030 is long.

Disclosure of Invention

In order to overcome the technical defects, the invention provides a composite supercharger which can complete a return stroke process only by using less pressure oil and has shorter time for the return stroke process.

In order to achieve the above object, the present invention adopts the following technical solutions.

A compound supercharger comprising:

a booster cylinder having a booster oil chamber;

a booster piston disposed within the booster oil chamber;

the return oil cavity is arranged in the boosting piston, a return piston is also arranged in the return oil cavity, and one end of the return piston is fixed on the boosting oil cylinder;

when oil is injected into the return oil cavity, the pressurizing piston moves up and down in the pressurizing oil cavity.

Compared with the prior art, the composite supercharger has the beneficial effects that: the composite supercharger is characterized in that a return oil cavity is formed in the supercharging piston, a return piston is arranged in the return oil cavity, and one end of the return piston is fixed; when oil is injected into the return oil cavity, the pressure in the return oil cavity is increased, and the return piston is fixed, so that the booster piston moves up and down along the return piston under the pressure in the return oil cavity, and the return stroke of the booster piston is realized; and because the return oil cavity in the compound supercharger is smaller than that of the traditional supercharger, the oil injection time is obviously shortened, so that the return time of the compound supercharger is shortened, and the supercharging speed is improved.

Furthermore, the booster oil cylinder comprises a first end cover, a booster cylinder barrel and a second end cover; the first end cover is connected with one end of the supercharger cylinder barrel in a sealing mode; the second end cover is connected with the other end of the supercharger cylinder barrel in a sealing mode;

the supercharging piston comprises a supercharging piston body and a supercharging piston rod;

one end of the pressurizing piston rod is connected with the pressurizing piston body, and the pressurizing piston rod penetrates through the second end cover.

Furthermore, the return piston divides the return oil cavity into a return lower cavity and a return upper cavity which are sealed mutually;

the return piston comprises a return piston body, a return lower piston rod and a return upper piston rod;

one end of the return lower piston rod is fixed on the first end cover, and the other end of the return lower piston rod is connected with the return piston body; one end of the return upper piston rod is connected with the return piston body, and the other end of the return upper piston rod penetrates through the return oil cavity;

the return lower cavity and the return upper cavity are respectively communicated with a return oil way through a connecting oil duct.

Further, an oil port of the return lower cavity, which is connected with an oil passage, is close to the return piston body.

Because the return lower cavity is slender and the supercharger is generally vertically arranged, if an oil port connected with an oil duct in the return lower cavity is arranged at a high position, hydraulic oil can fall into the return lower cavity by the gravity of the hydraulic oil, and the hydraulic oil can be pumped into the return lower cavity by using lower pressure; and if the oil port of the connecting oil duct in the return lower cavity is arranged at a low position, the hydraulic oil can be pumped into the return lower cavity by very high pressure.

Further, an oil port of the return upper cavity, which is connected with an oil duct, is close to the return piston body.

When pressure boost piston return position is too close to first end cover, then needs this moment pressure boost piston upward movement one section distance, then need then this moment to return stroke epicoele oiling, also need be to the cavity of resorption oiling of pressure boost oil pocket simultaneously, consequently the ascending effort of pressure boost piston comes from the ascending pressure of the cavity of resorption of pressure boost oil pocket with ascending pressure in the return stroke epicoele, and the ascending pressure of the cavity of resorption of pressure boost oil pocket promotes the ascending main effort of pressure boost piston, consequently will the hydraulic fluid port of connecting the oil duct in the return stroke epicoele is close to return stroke piston body also can be comparatively easily to its oiling.

Furthermore, the composite supercharger also comprises a reversing valve connected with a return oil path, and the reversing valve controls the oil inlet and outlet directions of the return lower cavity and the return upper cavity.

The reversing valve can change the oil inlet and outlet directions of the return lower cavity and the return upper cavity, so that the function of adjusting the position of the booster piston is realized.

Further, the composite supercharger is communicated with the main oil way and the return oil way through a transition plate; the design can reduce external pipelines, thereby reducing the hidden danger of leakage; and the structure of the whole composite supercharger can be made compact.

Further, the compound supercharger further comprises a displacement detection device, the displacement detection device comprising:

a displacement sensor disposed on the outer shield; the probe is matched with the displacement sensor and arranged on the return upper piston rod; and the magnetic ring is sleeved on the probe.

The displacement sensor, the probe and the magnetic ring work in a matched mode, so that the position of the pressurizing piston is accurately detected, and the displacement detection device and the reversing valve work in a matched mode, so that quantitative pressurization of the composite supercharger can be achieved.

Further, compound booster still includes air cleaner, air cleaner sets up the top at outer protection casing.

A ceramic press comprising the composite booster described above.

The time for the composite supercharger to complete the return stroke action is short, so that the time for the composite supercharger to complete the two supercharging actions is shortened.

Drawings

Embodiments of the invention are described in further detail below with reference to the attached drawing figures, wherein:

FIG. 1 is a schematic diagram of a prior art supercharger;

FIG. 2 is a schematic diagram of a control of a prior art supercharger;

FIG. 3 is a schematic view of a hybrid supercharger of the present invention;

FIG. 4 is an enlarged view of area A shown in FIG. 3;

FIG. 5 is a cross-sectional view of the hybrid supercharger of the present invention;

fig. 6 is a control schematic diagram of the hybrid supercharger of the present invention.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

As shown in fig. 3 to 6, the present embodiment discloses a composite supercharger, including:

a booster cylinder having a booster oil chamber;

a booster piston disposed within the booster oil chamber;

the return oil cavity is arranged in the boosting piston, a return piston is also arranged in the return oil cavity, and one end of the return piston is fixed on the boosting oil cylinder;

when oil is injected into the return oil cavity, the pressurizing piston moves up and down in the pressurizing oil cavity.

In this embodiment, the pressurizing piston divides the pressurizing oil chamber into a pressurizing lower chamber 110 and a pressurizing upper chamber 120 which are sealed with each other, the pressurizing lower chamber 110 is communicated with the main oil path through a low-pressure passage 111, and the pressurizing upper chamber 120 is communicated with the main oil path through a high-pressure passage 121; the supercharging piston is provided with a return oil cavity, the return oil cavity penetrates through the supercharging piston, and the return oil cavity and the supercharging oil cavity are sealed mutually; a return piston, one end of which is fixedly connected with the booster cylinder, and the other end of which penetrates through the return oil chamber, and divides the return oil chamber 220 into a return lower chamber 221 and a return upper chamber 222 which are sealed with each other; the return lower cavity 221 and the return upper cavity 222 are respectively communicated with the return oil path through a connecting oil passage 213.

Specifically, the booster cylinder comprises a first end cover 101, a booster cylinder 102 and a second end cover 103;

the first end cover 101 is connected with one end of the supercharger cylinder 102 in a sealing manner; the second end cover 103 is connected with the other end of the supercharger cylinder 102 in a sealing way; the booster piston comprises a booster piston body 130 and a booster piston rod 131; wherein, one end of the pressurization piston rod 131 is connected with the pressurization piston body 130, and the pressurization piston rod 131 penetrates through the second end cover 103.

Specifically, the return piston includes a return piston body 210, a return lower piston rod 211 and a return upper piston rod 212;

one end of the return lower piston rod 211 is fixed on the first end cover 101, and the other end thereof is connected with the return piston body 210;

one end of the return upper piston rod 212 is connected to the return piston body 210, and the other end thereof penetrates the return oil chamber 220.

Specifically, the return lower piston rod 211 and the return upper piston rod 212 have the same diameter.

The diameters of the return lower piston rod 211 and the return upper piston rod 212 are the same, so that the effective areas of the two ends of the return piston body 210 in the return oil chamber 220 are the same; if the oil supply pressure is not changed, the acting force and the speed in two directions are equal when the return piston moves repeatedly, so that the stability of the composite supercharger in the return process is ensured.

Specifically, an oil port of the connecting oil passage 213 in the return lower cavity is close to the return piston body 210.

Because the return lower cavity is slender and the supercharger is generally vertically arranged, if the oil port of the connecting oil channel 213 in the return lower cavity is arranged at a high position, the hydraulic oil can fall into the return lower cavity by the gravity of the hydraulic oil, so that the hydraulic oil can be pumped into the return lower cavity by using smaller pressure; and if the oil port of the connection oil passage 213 in the return lower chamber is disposed at a low position, a large pressure is required to pump the hydraulic oil into the return lower chamber.

Specifically, an oil port of the return upper chamber 222, which is connected to the oil passage 213, is close to the return piston body 210.

When the return position of the booster piston is too close to the first end cap, the booster piston is required to move upwards for a certain distance at this time, and at this time, oil is required to be injected into the return upper chamber 222 and also into the lower chamber of the booster oil chamber, so that the upward acting force of the booster piston comes from the upward pressure of the lower chamber of the booster oil chamber and the upward pressure of the return upper chamber 222, and the upward pressure of the lower chamber of the booster oil chamber is a main acting force for pushing the booster piston to move upwards, and therefore the oil port of the return upper chamber 222, which is connected with the oil passage 213, is close to the return piston body 210, and oil can be injected into the return piston body easily.

Specifically, the compound supercharger further comprises a reversing valve 800 connected with a return oil path, and the reversing valve 800 controls the oil inlet and outlet directions of the return lower cavity 221 and the return upper cavity 222.

In this embodiment, the compound supercharger is communicated with the main oil passage and the return oil passage through a transition plate.

Specifically, the composite supercharger is communicated with a main oil way and a return oil way through a transition plate 700, and a high-pressure port, a low-pressure port and a return oil port are arranged on the transition plate 700;

wherein the high pressure port communicates with the high pressure passage 121 and the low pressure port communicates with the low pressure passage 111; the return port communicates with the connection oil passage 213.

Although the compound supercharger is provided with the return oil chamber 220 and the return piston for return stroke separately in the embodiment, the transition plate 700 integrates the high pressure port, the low pressure port and the return oil port, so that the compound supercharger has a compact structure; and the high pressure port, the low pressure port and the return oil port are integrated on the transition plate 700, so that external pipelines can be reduced, and further the leakage hidden danger is reduced.

Specifically, the composite supercharger further comprises an outer protective cover 410, and the part of the supercharging piston rod 131 exposed outside the supercharger cylinder 102 is covered in the outer protective cover 410; the compound supercharger further comprises an inner protective cover 420, and the part of the return upper piston rod 212 exposed outside the supercharging piston rod 131 is covered in the inner protective cover 420.

Specifically, the hybrid supercharger further includes a displacement detection device, the displacement detection device including:

a displacement sensor 310 disposed on the outer shield 410; a probe 311 cooperating with the displacement sensor 310, which is provided on the return upper piston rod 212; and a magnetic ring 312 sleeved on the probe 311.

In this embodiment, the displacement sensor 310 is disposed on the top of the outer shield 410; a deep hole is arranged at the top end of the piston rod 212 on the return stroke and at a position corresponding to the displacement sensor 310, and a probe 311 is accommodated in the deep hole; the magnetic ring 312 is disposed on the top of the inner shield 420 and is sleeved on the probe 311.

The displacement sensor 310, the probe 311 and the magnetic ring 312 work in cooperation, so that the position of the boost piston is accurately detected, and the displacement detection device and the reversing valve 800 work in cooperation, so that quantitative boost of the composite supercharger can be realized.

Specifically, the composite supercharger further includes an air cleaner 500, and the air cleaner 500 is disposed on the top of the outer shield 410.

The embodiment also provides a ceramic press which comprises the composite supercharger.

The working principle of the compound supercharger in the embodiment is as follows:

as shown in fig. 4, the first control valve 001, the second control valve 002, the third control valve 003, the fourth control valve 004, the fifth control valve 005, and the sixth control valve 006 constitute a control valve group, which is provided on the main oil passage; the concrete process of the composite supercharger for supercharging action is as follows: when the fourth control valve 004 in the control valve group is powered on and the main valve in the cartridge valve controlled by the fourth control valve 004 is opened, the pressure oil enters the pressurizing lower cavity 110 through the main valve in the cartridge valve controlled by the fourth control valve 004 to push the pressurizing piston to move upwards, at this time, the second control valve 002 in the control valve group is powered on, the main valve in the cartridge valve controlled by the second control valve 002 is opened, the high-pressure oil in the pressurizing upper cavity 120 enters the main oil cylinder 900 through the main valve in the cartridge valve controlled by the second control valve 002, so that the main oil cylinder 900 is pressurized, and in the work, except that the fourth control valve 004 and the second control valve 002 are in an opened state, the other control valves are in a closed state.

After the supercharging action is finished, the supercharging piston moves upwards for a certain stroke, and the composite supercharger can carry out the next supercharging action only after the supercharging piston needs to carry out return stroke action.

The specific process of the composite supercharger for return stroke action is as follows: second control valve 002, fifth control valve 005, sixth control valve 006 are in the open mode, and the main valve of its cartridge valve of controlling respectively is in the open mode this moment, pressure boost lower chamber 110 with the oil return circuit in the main oil circuit is communicate to pressure boost upper chamber 120, at this moment, switching-over valve 800 gets electric, then pressure oil gets into return stroke lower chamber 221, the oil return circuit in return stroke upper chamber 222 intercommunication return stroke oil circuit, the pressure boost piston is in the downward motion under the effect of pressure oil in the return stroke lower chamber 221, simultaneously, pressure boost lower chamber 100 arranges the oil, pressure boost upper chamber 120 oil feed, thereby realize the return stroke action of pressure boost piston.

If the return position of the boost piston needs to be adjusted, for example, the return position of the boost piston is too close to the first end cap 101, at this time, the boost piston needs to move upward for a certain distance, and the specific process is as follows: the direction valve 800 switches the oil inlet and outlet directions of the return lower cavity 221 and the return upper cavity 222, at this time, pressure oil enters the return upper cavity 222, the return lower cavity 221 is communicated with an oil return oil circuit in the return oil circuit, and the pressurizing piston moves upwards under the action of the pressure oil in the return upper cavity 222, so that the pressurizing piston moves upwards for a certain distance.

In this process, the displacement sensor 310, the probe 311 and the magnetic ring 312 in this embodiment cooperate to accurately detect the position of the pressurizing piston.

From last knowing, in this embodiment the return stroke piston with a hydraulic system has been constituteed to the pressure boost piston, right when needs compound booster carries out the return stroke action, then to return stroke lower cavity 221 oiling of return stroke oil pocket 220, return stroke upper cavity 222 oil extraction of return stroke oil pocket 220, pressure boost piston cover are established on the return stroke piston, this moment the pressure boost piston is under the effect of pressure oil in return stroke lower cavity 221, the pressure boost piston moves down, then pressure boost lower cavity 100 oil extraction, pressure boost upper cavity 120 oil feed, resets until the pressure boost piston. Because the return oil cavity 220 in the compound supercharger is smaller than that of the traditional supercharger in the embodiment, the required pressure oil for completing the return action is smaller than that of the traditional supercharger, so that the use amount of the pressure oil of the supercharger in the return action is reduced; and because the return oil cavity 220 in the compound supercharger is smaller than that of the traditional supercharger, the oil injection time is obviously shortened, so that the return time of the compound supercharger is reduced.

The embodiment also provides a ceramic press, which comprises the composite supercharger.

Because the time for the composite supercharger to complete the return stroke action is short, the time for the composite supercharger to complete the two supercharging actions is shortened, compared with the traditional supercharger, the number of times for the composite supercharger to complete the supercharging actions is greater than that of the traditional supercharger in the same time, and therefore the ceramic press adopting the composite supercharger has high pressing frequency, and the production efficiency of ceramic tiles is improved.

The composite supercharger is applied to a 3800T ceramic press, and the ceramic press is adopted to press ceramic green bricks of 80cm multiplied by 80cm, wherein the supercharging frequency of the composite supercharger can reach 9 times/minute in the pressing process; the 3800T ceramic press of the traditional supercharger is adopted to press the ceramic green bricks with the same specification as the ceramic green bricks, and the supercharging frequency of the traditional supercharger is only 8 times/minute in the pressing process;

from the comparison, it is obvious that the times of the pressurization actions completed by the composite supercharger in the embodiment are greater than those completed by the traditional supercharger, so that the ceramic press adopting the composite supercharger in the embodiment has high pressing frequency, and the production efficiency of ceramic tiles is improved.

Various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

In the description of the present invention, it is to be understood that the terms "vertical", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the scope of the present invention.

If the terms "first," "second," etc. are used herein to define parts, those skilled in the art will recognize that: the use of "first" and "second" is merely for convenience in describing the invention and to simplify the description, and unless otherwise stated the above words are not intended to have a special meaning.

It should be understood that the above is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures or equivalent flow transformations made by the present specification and drawings, or applied directly or indirectly to other related technical fields, are included in the scope of the present invention.