CN217898172U - Large-displacement double-acting roller pump - Google Patents

Abstract

The utility model discloses a big discharge capacity double-acting roller pump, including the oil cup assembly, be equipped with stator, rotor and oilplate in the oil cup assembly, the inside cavity that is equipped with of stator, cavity inner wall curve include with two sections first circular arc curve of rotor concentricity, two sections second circular arc curve and transition curve with rotor concentricity, a plurality of recesses have been seted up on the border of rotor, and all be equipped with a roller in every recess, the recess is the U type, recess inner wall is equipped with spacing face, the rotor is equipped with the shaft hole, be equipped with the pivot in the shaft hole, the rotor with pivot fixed connection, the oilplate is installed the side of stator, be equipped with two inlet ports and two oil outlet on the oilplate, oil cup assembly side is equipped with into oil pipe and oil outlet, advance oil pipe with the inlet port is connected, the oil outlet pipe with the oil outlet is connected, this roller pump realizes twice flowing back and imbibition.

Description

Large-displacement double-acting roller pump

[ technical field ] A

The utility model discloses a two effect roller pumps of big discharge belongs to roller pump technical field.

[ background of the invention ]

With the rapid development of scientific technology, the electric transmission technology has the rapid development due to the emergence of technologies such as a servo motor, frequency conversion and the like, and the electric transmission basically replaces hydraulic transmission to occupy absolute advantages in a low-power range; the advantage of maintaining the power density of the hydraulic transmission far higher than that of the electric transmission is that a user prefers to select the hydraulic transmission under the working conditions of high power and high pressure, wherein one decisive factor is to increase the pressure and the power of the hydraulic pump, namely the advantage of maintaining the high power density of the hydraulic transmission. The high pressure and large displacement of the hydraulic pump have become the development trend of the hydraulic pump, so that the displacement pump integrates the characteristics of high pressure and high power density.

[ Utility model ] A method for manufacturing a semiconductor device

The technical problem to be solved by the utility model is to provide a big discharge capacity double-acting roller pump, this roller pump realizes twice flowing back and imbibition.

Solve the technical problem, the utility model adopts the following technical scheme:

the utility model provides a big discharge capacity double-acting roller pump, includes the oil cup assembly, be equipped with stator, rotor and oilplate in the oil cup assembly, the inside cavity that is equipped with of stator, the rotor is in the cavity, cavity inner wall curve includes the first circular arc curve concentric with two sections rotors, two sections second circular arc curves concentric with the rotor and transition curve, the radius of first circular arc curve is greater than the radius of second circular arc curve, first circular arc curve both ends are passed through second circular arc curve is connected respectively to the transition curve, a plurality of recesses have been seted up on the border of rotor, and all be equipped with a roller in every recess, the recess is the U type, the recess inner wall is equipped with spacing face, the rotor is equipped with the shaft hole, be equipped with the pivot in the shaft hole, the rotor with pivot fixed connection, the oilplate is installed the side of stator, be equipped with two inlet ports and two oil outlets on the oilplate, the inlet port with the oil outlet follows the circumference interval distribution of oilplate, inlet port and oil outlet all with the transition curve is corresponding, the oilcup assembly side is equipped with the oil inlet pipe and oil outlet is connected the oil outlet is connected with the oil pipe.

Adopt the beneficial effects of the utility model are that:

the utility model discloses in the cavity inner wall curve of stator has first circular arc curve, second circular arc curve and transition curve to constitute, a plurality of recesses have been seted up on the border of rotor, all are equipped with a roller in every recess, when the rotor rotates, the roller is followed under the effect of centrifugal force the inner wall of stator rolls, follows as the roller second circular arc curve follows transition curve court when first circular arc curve rolls, fluid passes through the inlet port and gets into recess and cavity between rotor and the stator is worked as follow first circular arc curve is followed when second circular arc curve rolls, interval between rotor and the stator reduces gradually, promptly cavity volume between rotor and the customization reduces, the roller is pressed back in the recess, this moment fluid in recess and the cavity is extruded into the oil outlet, the utility model discloses in the inner wall of stator has two sections first circular arc curves and two sections second circular arc curves, first circular arc curve both ends pass through transition curve connects the second circular arc curve respectively, be equipped with two inlet ports and two discharge ports on the oiled-plate, the inlet port and transition curve and two sections second circular arc curve, the displacement is corresponding in the utility model discloses the volume is gone on the displacement is corresponding imbibition volume is provided the utility model discloses the useful volume, the displacement is the utility model discloses two times the displacement is convenient.

Additionally, in the utility model discloses in the rotor rotates the process, the roller with the inner wall of stator is rolling friction, can reduce the wearing and tearing of roller in the course of the work improve the utility model discloses a life, secondly, the rotor rotates the drive the removal of roller, consequently the roller with one side of recess keeps sealing earlier, the roller keeps sealing with the inner wall of stator under the effect of centrifugal force, makes the utility model discloses an output pulsation is more stable, reduces the utility model discloses a vibrations reduce the utility model discloses a noise, the cavity passes through between rotor and the stator the roller is linked together with one side that the recess is not sealed, forms effective volume, makes the utility model discloses an effective volume keeps great, improves the utility model discloses a discharge capacity.

Preferably, a pump cover is arranged on the oil cup assembly, a first dustproof cover is arranged at the end of the pump cover, a bearing seat is arranged in the pump cover, and a bearing is sleeved on the rotating shaft.

Preferably, a driving wheel is sleeved at the end part, far away from the oil cup assembly, of the rotating shaft, and the driving wheel is fixedly connected with the rotating shaft.

Preferably, the shaft hole inner wall is equipped with the breach, install the locating pin in the pivot, the locating pin with the breach joint is realized the rotor with the synchronous rotation of pivot.

Preferably, the end part of the oil inlet pipe is sleeved with a blocking cover.

Preferably, the oil outlet pipe comprises a pipe body and a pipe orifice, a valve core and a flow limiting spring are arranged in the pipe body, the flow limiting spring is located at the end part, far away from the pipe orifice, of the pipe body, and the flow limiting spring is limited between the inner wall of the pipe body and the valve core.

Preferably, a joint is arranged at the pipe orifice of the oil outlet pipe, and a second dust cover is installed at the end part of the joint.

Preferably, a plurality of positioning holes are formed in the stator, positioning columns are arranged on the oil plate, and the positioning columns are inserted into the positioning holes to achieve connection between the oil plate and the stator.

Preferably, the edge of the rotor is provided with 12 grooves which are uniformly distributed along the circumferential direction of the rotor.

Other features and advantages of the present invention will be disclosed in more detail in the following detailed description and the accompanying drawings.

[ description of the drawings ]

The invention is further described with reference to the accompanying drawings:

fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;

fig. 2 is a top view of an embodiment of the present invention;

fig. 3 is a cross-sectional view of an embodiment of the present invention;

FIG. 4 is an internal structural view of an embodiment of the present invention;

fig. 5 is a schematic structural diagram of the rotor and the oil plate in the embodiment of the present invention.

Reference numerals are as follows: 1 oil cup assembly, 11 pump covers, 12 first dust covers, 2 stators, 3 rotors, 31 shaft holes, 32 grooves, 321 limiting surfaces, 33 rollers, 4 oil plates, 41 oil inlet holes, 42 oil outlet holes, 43 positioning columns, 51 oil outlet pipes, 511 valve cores, 512 flow limiting springs, 513 joints, 514 second dust covers, 52 oil outlet pipes, 521 plug covers, 6 rotating shafts, 61 driving wheels and 62 bearings.

[ detailed description ] A

The technical solutions of the embodiments of the present invention are explained and explained below with reference to the drawings of the embodiments of the present invention, but the embodiments described below are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the embodiment, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" 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 to simplify the description, but do not indicate or imply that the device or element 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" and "first" 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" or "second" 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 explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be 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 according to specific situations by those skilled in the art.

Example 1:

as shown in fig. 1 to 5, this embodiment shows a large-displacement double-acting roller pump, which includes an oil cup assembly 1, a stator 2, a rotor 3, and an oil plate 4 are provided in the oil cup assembly 1, a cavity is provided inside the stator 2, the rotor 3 is located in the cavity, the rotor 3 is provided with a shaft hole 31, a rotating shaft 6 is provided in the shaft hole 31, a notch is provided on an inner wall of the shaft hole 31, a positioning pin is installed on the rotating shaft 6, the positioning pin and the notch are clamped to realize synchronous rotation of the rotor 3 and the rotating shaft 6, a pump cover 11 is provided on the oil cup assembly 1, a first dust cover 12 is provided at an end of the pump cover 11, the rotating shaft 6 penetrates through the pump cover 11, a bearing 62 is sleeved on the rotating shaft 6, a bearing 62 seat is provided in the pump cover 11, a driving wheel 61 is sleeved at an end of the rotating shaft 6 far away from the oil cup assembly 1, and the driving wheel 61 is fixedly connected with the rotating shaft 6.

The cavity inner wall curve includes the first circular arc curve concentric with two sections rotors 3, two sections second circular arc curve and four sections transition curve concentric with rotors 3, the radius of first circular arc curve is greater than the radius of second circular arc curve, first circular arc curve both ends are passed through second circular arc curve is connected respectively to transition curve, second circular arc curve both ends are passed through first circular arc curve is connected respectively to transition curve, in this embodiment the cavity inner wall curve is the symmetry curve, can understand certainly in other embodiments the cavity inner wall curve also can be asymmetric curve, a plurality of recesses 32 have been seted up on the border of rotors 3, and all are equipped with a roller 33 in every recess 32, in this embodiment the border of rotors 3 is equipped with 12 recesses 32, recess 32 is followed the circumference evenly distributed of rotors 3, recess 32 is the U type, recess 32 inner wall 32 is equipped with spacing face 321, spacing face 321 can avoid roller 33 gets into recess 32 completely, ensures that there is the space in the recess 32.

Oil board 4 is installed the side of stator 2, be equipped with a plurality of locating holes on the stator 2, be equipped with reference column 43 on the oil board 4, reference column 43 inserts the locating hole is realized oil board 4 with the connection of stator 2, be equipped with two inlet ports 41 and two oil outlet 42 on the oil board 4, inlet port 41 with oil outlet 42 follows the circumference interval distribution of oil board 4, inlet port 41 and oil outlet 42 all with the transition curve is corresponding, 1 side of oil cup assembly is equipped with into oil pipe and play oil pipe 5251, advance oil pipe with inlet port 41 is connected, play oil pipe 5251 with oil outlet 42 is connected, the tip cover of advancing oil pipe is equipped with blanking cover 521, it includes body and mouth of pipe to go out oil pipe 5251, body inside is equipped with case 511 and current-limiting spring 512, current-limiting spring 512 is in the body is kept away from orificial tip, current-limiting spring 512 restrict be in the inner wall of body with between the case 511, play oil pipe 5251's the orificial department is equipped with joint 52513, the dustproof lid portion of second is installed to joint 513 end.

During this embodiment work, the motor drives drive wheel 61 rotates, drive wheel 61 drives pivot 6 rotates, rotor 3 is rotated by pivot 6's effect, roller 33 follows under the effect of centrifugal force stator 2's inner wall rolls to along with first circular arc curve and second circular arc curve's radius constantly changes and make reciprocating motion in the recess 32, this embodiment during operation, fluid follows the inlet tube gets into oil cup assembly 1, works as the roller follows the second circular arc curve follows transition curve court when first circular arc curve rolls, fluid gets into through inlet 41 recess 32 and the cavity between rotor 3 and the stator 2, follow first circular arc curve follows transition curve court when second circular arc curve rolls, interval between rotor 3 and the stator 2 reduces gradually, promptly the cavity volume between rotor 3 and the customization reduces, in the recess 32 is pressed back to, at this moment fluid in recess 32 and the cavity is crowded into oil outlet 42, realize once and imbibition, and the imbibition in this embodiment the inner wall of stator 2 has first circular arc curve and the second circular arc curve to reduce, the imbibition volume reduces, the second circular arc curve is connected the oil outlet 42 through the two circular arc curves, the second circular arc curve and the second circular arc curve, the second circular arc curve is connected the oil outlet is connected with the two circular arc curves, the two circular arc curves 41, the circular arc curves are connected to the oil outlet 42, the second circular arc curve is connected to the oil outlet.

In addition, in the rotation process of the rotor 3 in this embodiment, the roller 33 and the inner wall of the stator 2 are rolling friction, which can reduce the wear of the roller 33 in the working process, and improve the service life of this embodiment, and secondly, the rotation of the rotor 3 drives the movement of the roller 33, so that the roller 33 and one side of the groove 32 are kept sealed first, and the roller 33 and the inner wall of the stator 2 are kept sealed under the action of centrifugal force, so that the output pulsation of this embodiment is more stable, the vibration of this embodiment is reduced, and the noise of this embodiment is reduced, and the chamber between the rotor 3 and the stator 2 is communicated through the roller 33 and the unsealed side of the groove 32, so as to form an effective volume, so that the effective volume of this embodiment is kept large, and the displacement of this embodiment is improved.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.

Claims (8)

1. A large displacement double acting roller pump characterized by: the oil pump comprises an oil cup assembly, wherein a stator, a rotor and an oil plate are arranged in the oil cup assembly, a cavity is arranged inside the stator, the rotor is located in the cavity, a cavity inner wall curve comprises a first arc curve concentric with two sections of the rotor, a second arc curve concentric with the rotor and a transition curve, the radius of the first arc curve is larger than that of the second arc curve, two ends of the first arc curve are connected with the second arc curve respectively through the transition curve, a plurality of grooves are formed in the edge of the rotor, a roller is arranged in each groove, each groove is in a U shape, a limiting surface is arranged on the inner wall of each groove, the rotor is provided with a shaft hole, a rotating shaft is arranged in each shaft hole, the rotor is fixedly connected with the rotating shaft, the oil plate is installed on the side edge of the stator, a plurality of positioning holes are formed in the stator, a positioning column is arranged on the oil plate, the positioning column is inserted into the positioning holes to realize the connection of the oil plate and the stator, two oil inlets and two oil outlets are arranged on the oil cup, the oil outlet holes are distributed at intervals, the oil outlet holes correspond to the oil outlet, and the oil outlet is connected with the oil pipe, and the oil outlet pipe is connected with the oil outlet pipe.

2. A large displacement, double acting roller pump as defined in claim 1, wherein: the oil cup assembly is characterized in that a pump cover is arranged on the oil cup assembly, a first dustproof cover is arranged at the end of the pump cover, a bearing seat is arranged in the pump cover, and a bearing is sleeved on the rotating shaft.

3. A large displacement, double acting roller pump as claimed in claim 1, wherein: the end part, far away from the oil cup assembly, of the rotating shaft is sleeved with a driving wheel, and the driving wheel is fixedly connected with the rotating shaft.

4. A large displacement, double acting roller pump as defined in claim 1, wherein: the shaft hole inner wall is equipped with the breach, install the locating pin in the pivot, the locating pin with the breach joint is realized the rotor with the synchronous rotation of pivot.

5. A large displacement, double acting roller pump as defined in claim 1, wherein: the end cover of the oil inlet pipe is provided with a plug cover.

6. A large displacement, double acting roller pump as defined in claim 1, wherein: the oil outlet pipe comprises a pipe body and a pipe opening, a valve core and a current-limiting spring are arranged inside the pipe body, the current-limiting spring is located at the end part, far away from the pipe opening, of the pipe body, and the current-limiting spring is limited between the inner wall of the pipe body and the valve core.

7. A large capacity double acting roller pump as defined in claim 6, wherein: the mouth of pipe department of going out oil pipe is equipped with the joint, the second shield is installed to the joint tip.

8. A large displacement, double acting roller pump as claimed in claim 1, wherein: the border of rotor is equipped with 12 recesses, the recess is followed the circumference evenly distributed of rotor.

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