CN220687877U

CN220687877U - Multi-claw coupling device for connecting motor and pump head and oil gas recovery pump thereof

Info

Publication number: CN220687877U
Application number: CN202322329834.4U
Authority: CN
Inventors: 邹骏; 贺振江; 尚佳成; 张凯
Original assignee: Vader Road Service Station Equipment Shanghai Co ltd
Current assignee: Vader Road Service Station Equipment Shanghai Co ltd
Priority date: 2023-08-29
Filing date: 2023-08-29
Publication date: 2024-03-29
Anticipated expiration: 2033-08-29

Abstract

The application discloses connect multijaw shaft coupling device of motor and pump head includes: the first coupling, the second coupling and the rubber gasket between the two; one end of the first coupler is a motor connecting end and is connected with a motor spindle, and the other end of the first coupler is a first flange surface of a first supporting claw with a plurality of protrusions; one end of the second coupler is a pump head connecting end and is connected with a pump head main shaft, and the other end of the second coupler is a second flange surface provided with a plurality of protruding second supporting claws; the rubber gasket is provided with a plurality of through holes which respectively correspond to the positions of the first supporting claws and the positions of the second supporting claws; the first supporting claw and the second supporting claw are respectively inserted into through holes at corresponding positions on the rubber gasket from two sides of the rubber gasket to be tightly matched with the rubber gasket. The shaft coupling device in this application makes in the rotatory in-process of the output shaft of motor through setting up a plurality of protruding claws in order to interlock each other on two flange faces of laminating mutually, and motor and pump head can be connected steadily.

Description

Multi-claw coupling device for connecting motor and pump head and oil gas recovery pump thereof

Technical Field

The application relates to the technical field of oil gas recovery, in particular to an oil gas recovery pump, and particularly relates to a multi-claw coupling device for connecting a motor and a pump head and the oil gas recovery pump thereof.

Background

The oil gas recovery pump comprises a motor main body and a pump head, wherein the two sides of the motor connected with the pump head are provided with main shafts which extend outwards, and a coupling is needed to connect the main shafts of the motor and the pump head to effectively work. As an important shafting component in mechanical transmission, a coupling device enables a motor to rotate together with a pump head and transmits motion and power. Usually, the shaft coupling device is fixed connection, when one of motor or pump head need be maintained, change, need dismantle the shaft coupling, and the process is loaded down with trivial details, complicacy, and the efficiency of dismouting is lower.

Moreover, the pump head is generally more worn than the motor, and the frequency of maintenance and replacement is higher, so that designing a split coupling device to facilitate the disassembly of the motor body and the pump head is a technical problem to be solved.

Disclosure of Invention

To the technical problem that exists among the prior art, this application provides a connect many claw shaft coupling device of motor and pump head and vapour recovery pump thereof, conveniently carries out the dismouting with pump head and motor main part through designing a split type shaft coupling device.

The application provides a connect multi-claw coupling device of motor and pump head includes: a first coupling, a second coupling, and a rubber gasket between the first coupling and the second coupling; one end of the first coupler is a motor connecting end and is connected with a motor spindle, the other end of the first coupler is a first flange surface, and a plurality of protruding first supporting claws are arranged on the first flange surface; one end of the second coupler is a pump head connecting end and is connected with a pump head main shaft, the other end of the second coupler is a second flange surface, and a plurality of protruding second supporting claws are arranged on the second flange surface; the rubber gasket is arranged between the first flange surface and the second flange surface and is provided with a plurality of through holes, and the positions of the through holes respectively correspond to the positions of the first supporting claws and the positions of the second supporting claws; the first supporting claw and the second supporting claw are respectively inserted into through holes at corresponding positions on the rubber gasket from two sides of the rubber gasket, and the first flange surface and the second flange surface are tightly matched with the rubber gasket.

Optionally, according to an embodiment of the present application, the length of each of the first and second claws is greater than the thickness of the rubber gasket, the second claw extends onto the first flange face, and the first claw extends onto the second flange face; the first flange surface is provided with a plurality of first accommodating spaces at corresponding positions of the second supporting claws so as to accommodate the second supporting claws; the second flange surface is provided with a plurality of second accommodating spaces at corresponding positions of the first supporting claws so as to accommodate the first supporting claws.

Optionally, according to an embodiment of the present application, the number of the first claws on the first flange surface is three, the three first claws are uniformly distributed on a first circle of the first flange surface, and a central angle between two adjacent first claws is 120 °;

optionally, according to an embodiment of the present application, the number of the second claws on the second flange surface is three, the three second claws are uniformly distributed on a second circle of the second flange surface, and a central angle between two adjacent second claws is 120 °; the first circle and the second circle are concentric, and the circle centers are all axes.

Optionally, according to an embodiment of the present application, the plurality of first accommodating spaces are a plurality of arc-shaped recesses formed from an edge of the first flange face to an axis, and the plurality of second accommodating spaces are a plurality of arc-shaped recesses formed from an edge of the second flange face to an axis.

Optionally, according to an embodiment of the present application, a chamfer is provided on a free end of each of the first and second claws.

Optionally, according to an embodiment of the present application, a hollow outer sleeve in transition fit with the motor spindle is extended from the motor connection end, and a positioning key slot is provided on an inner wall of the hollow outer sleeve, and the positioning key slot is matched with a positioning key in an axial direction of the motor spindle to complete positioning connection; and a clamping flange is arranged in the hollow outer sleeve and between the positioning key groove and the first flange surface, and the diameter of a through hole at the clamping flange is smaller than that of the motor spindle.

Optionally, according to an embodiment of the present application, a hollow inner sleeve that is in transition fit with the pump head spindle is extended from an end surface of the pump head connection end, and a positioning key is disposed at a joint portion of the end surface of the pump head connection end and the hollow inner sleeve, and the positioning key is matched with a positioning groove on the pump head spindle to complete positioning connection.

Optionally, according to an embodiment of the present application, the motor spindle is fixed by a first fastening screw through a through hole in the first flange surface, and an outer end surface of the first fastening screw does not exceed an end surface of the first flange surface after fastening is completed.

Optionally, according to an embodiment of the present application, the pump head spindle further includes a second fastening screw, the second fastening screw fixes the pump head spindle through a through hole in the second flange surface, and an outer end surface of the second fastening screw does not exceed an end surface of the second flange surface after fastening is completed.

The application also provides an oil gas recovery pump, including motor main part, pump head and multi-claw coupling device as described in any of the above embodiments, multi-claw coupling device will motor main shaft with the pump head main shaft is connected, accomplishes the motor main part with coupling transmission between the pump head.

Drawings

Preferred embodiments of the present application will be described in further detail below with reference to the attached drawing figures, wherein:

FIG. 1 is a schematic view of the overall structure of a multi-jaw coupling according to an embodiment of the present application;

fig. 2A, 2B and 2C are schematic diagrams of a motor connection end, an axial cross-section, and a first flange face of the first coupling according to the embodiment of the present application, respectively;

fig. 3A, 3B and 3C are schematic diagrams of a pump head connection end, an axial cross-section, and a second flange face of a second coupling according to an embodiment of the present application;

FIG. 4 is a schematic illustration of an assembly process of a multi-jaw coupling according to an embodiment of the present application;

fig. 5 is an axial cross-sectional view of the multi-jaw coupling of the present embodiment after installation.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

In the following detailed description, reference is made to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration specific embodiments in which the application may be practiced. In the drawings, like reference numerals describe substantially similar components throughout the different views. Various specific embodiments of the present application are described in sufficient detail below to enable those skilled in the art to practice the teachings of the present application. It is to be understood that other embodiments may be utilized or structural, logical, or electrical changes may be made to the embodiments of the present application.

FIG. 1 is a schematic view of the overall structure of a multi-jaw coupling according to an embodiment of the present application; fig. 2A-2C are schematic diagrams of a motor connection end, an axial cross-section, and a first flange face of a first coupling according to an embodiment of the present application, respectively; fig. 3A-3C are a schematic view of a pump head connection end, an axial cross-section, and a schematic view of a second flange face, respectively, of a second coupling according to an embodiment of the present application. As shown in fig. 1 in combination with fig. 2A-2C and fig. 3A-3C, a multi-jaw coupling 00 for connecting a motor and a pump head according to the present application includes: a first coupling 01, a second coupling 02 and a rubber packing 03 between the first coupling 01 and the second coupling 02; one end of the first coupling 01 is a motor connecting end 11 which is connected with the motor spindle 04, the other end is a first flange surface 12, and a plurality of protruding first supporting claws 13 are arranged on the first flange surface 12; one end of the second coupling 02 is a pump head connecting end 21 which is connected with the pump head main shaft 05, the other end is a second flange surface 22, and a plurality of protruding second supporting claws 23 are arranged on the second flange surface 22; the rubber gasket 03 is arranged between the first flange surface 12 and the second flange surface 22 and is provided with a plurality of through holes, and the positions of the through holes respectively correspond to the positions of the first supporting claws 13 and the positions of the second supporting claws 23; the first and second claws 13 and 23 are inserted into through holes at corresponding positions on the rubber gasket 03 from both sides of the rubber gasket 03, respectively, and the first and second flange surfaces 12 and 22 are tightly fitted with the rubber gasket 03.

The shaft coupling device in the embodiment of the application is a split type shaft coupling device, two shaft couplings are respectively connected with a motor main shaft and a pump head main shaft, and special-shaped supporting claws are arranged on the end faces, which are contacted with the two shaft couplings, of the two split type shaft couplings in a mutually embedded mode.

Fig. 4 is a schematic diagram illustrating an assembly process of the multi-jaw coupling device according to the embodiment of the present application, as shown in fig. 4, specifically, the first coupling 01 is first connected to the motor spindle 04, and the second coupling 02 is first connected to the pump head spindle 05, where the two couplings are still separated from each other. When the motor and the pump head are required to be connected, the motor and the pump head are enabled to move relatively along the direction indicated by the arrow in the figure, and each claw is inserted into the rubber gasket 03 with the through hole at the corresponding position, so that the connection is completed. The rubber gasket 03 has certain elastic deformation capability, and compared with metal hard connection, the rubber gasket 03 is connected with two couplings, so that the possibility of damage of mechanical parts can be reduced, and meanwhile, the transmission of motor torque can be ensured.

This connection of the present application may make it more convenient when a pump head is to be replaced. When the motor and the pump head are disassembled, the motor can be kept as it is, the cable connected to the motor can be unchanged, only the two couplings are required to be separated, then the second coupling is separated from the pump head, and the pump head is required to be replaced independently.

Optionally, according to the embodiment of the present application, the rubber gasket 03 plays the pretightening force between two flange faces, protects the purpose of mechanical component, and thickness can be adjusted according to actual need, and when the length of first claw 01 and second claw 02 all is greater than the thickness of rubber gasket 03, second claw 02 can wear out from the through-hole of rubber gasket 03, extends to first flange face 12, and in the same way, first claw 01 also can wear out from the through-hole of rubber gasket 03, extends to second flange face 22. At this time, if the two flange faces are not provided with accommodating spaces at the positions where the opposite side support claws extend, the two flange faces can be respectively supported by the opposite side support claws, so that the two flange faces cannot be tightly attached, and the connection of the two couplers is unstable due to the middle gap, so that the coupling effect of the coupling device cannot be achieved. Therefore, the first flange surface 12 is provided with a plurality of first accommodating spaces 14 at corresponding positions of the second claws 23 to accommodate the second claws 23; the second flange surface 22 is provided with a plurality of second accommodating spaces 24 at corresponding positions of the first claws 13 to accommodate the first claws 13.

The supporting claws extending to the flange surface of the other side can extend into the well arranged containing space on the flange surface, so that the two flange surfaces are tightly attached to each other, the first coupler 01 and the second coupler 02 can be assembled, and coaxial linkage is carried out.

As shown in fig. 2A-2C and fig. 3A-3C, optionally, according to an embodiment of the present application, the number of first claws 13 on the first flange surface 12 is three, and the three first claws 13 are uniformly distributed on a first circle (not shown in the drawings) of the first flange surface 12, where a central angle between two adjacent first claws is 120 °. Accordingly, in some embodiments, the number of the second claws 23 on the second flange surface 22 is three, the three second claws 23 are uniformly distributed on a second circle (not shown in the figure) of the second flange surface 22, and a central angle between two adjacent second claws is 120 °; the first circle and the second circle are concentric, and the circle centers are all axes.

In fig. 2A to 2C, the first claws 13 are uniformly distributed on the first flange surface 12, and the central angle between each two adjacent first claws 13 is 120 °; in fig. 3, the second claws 23 are uniformly distributed on the second flange surface 22, and the central angle between every two adjacent second claws 23 is 120 °.

Because the machine is affected by structural requirements, manufacturing and installation errors, changes in operating temperature, deformation after bearing, and other factors, the two shafts connected by the coupler often cannot be centered, and relative displacement exists in a certain range. If these displacements are not compensated, additional loads are created on the coupling, shaft and bearings, even causing strong vibrations. So that the first circles distributed by the three first claws 13 and the second circles distributed by the three second claws are concentric with the main shaft, and the coaxial linkage stability can be ensured.

Further, if the first claws 13 and the second claws 23 are uniformly distributed as described above, the corresponding first accommodation spaces 14 and second accommodation spaces 24 should also be uniformly distributed on the respective flange faces, so that accommodation of claws extending over the opposite flange faces can be ensured.

As shown in fig. 1-4, alternatively, according to an embodiment of the present application, the first accommodating spaces 14 are arc-shaped recesses formed from the edge of the first flange surface 12 to the axis, and the second accommodating spaces 24 are arc-shaped recesses formed from the edge of the second flange surface 22 to the axis. The arc-shaped concave is convenient to open, and the arc-shaped concave is opened inwards from the edge of the flange face towards the axle center. The arc degree of the arc does not need to be clearly required, and only needs not to interfere and collide with the opposite extending supporting claws. At this time, the claws of the two flange faces can be engaged with each other and stably connected together.

Optionally, according to an embodiment of the present application, a chamfer is provided on the free end of each first finger 13 and each second finger 23. As shown in fig. 1, the free end of each finger is chamfered so that the diameter of the finger tip is small, facilitating insertion into the through-hole of the rubber pad 03, particularly when the diameter of the through-hole of the rubber pad 03 is equal to or slightly smaller than the diameter of each finger. After the assembly is completed, the rubber gasket 03 can form tight connection with each supporting claw, so that two couplings are better protected, the service life of the coupling device is prolonged, and the stability of coaxial transmission can be enhanced.

Fig. 5 is an axial cross-sectional view of the multi-jaw coupling of the present embodiment after installation. As shown in fig. 2A-2C, fig. 4 and fig. 5, in some embodiments, a hollow outer sleeve 110 in transition fit with the motor spindle is extended from the motor connection end 11, and a positioning key slot 111 is provided on an inner wall of the hollow outer sleeve 110, and the positioning key slot 111 is matched with a positioning key (not shown in the drawings) in the axial direction of the motor spindle to complete positioning connection; inside hollow outer sleeve 110, and be equipped with the block flange 112 between location keyway 111 and first flange face 12, the through-hole diameter of block flange department 112 is less than motor spindle 04's diameter to make motor spindle 04 after stretching into hollow outer sleeve 110, can block at block flange 112 department and no longer take place relative motion with the shaft coupling, accomplish the assembly between the two.

As shown in fig. 3A-3C, fig. 4 and fig. 5, in some embodiments, a hollow inner sleeve 210 that is in transition fit with the pump head spindle is extended from the end surface of the pump head connecting end 21, and a positioning key 211 is disposed at a joint portion between the end surface of the pump head connecting end 21 and the hollow inner sleeve 210, where the positioning key 211 is matched with a positioning groove (not shown in the drawings) on the pump head spindle 05 to complete positioning connection.

As shown in fig. 5, optionally, according to an embodiment of the present application, the motor spindle 04 is fixed by the first fastening screw 91 through the through hole in the first flange surface 12, and the outer end surface of the first fastening screw 91 does not exceed the end surface of the first flange surface 13 after fastening is completed. As further shown in fig. 5, the second fastening screw 92 fixes the pump head spindle 05 through the through hole in the second flange surface 22, and the outer end surface of the second fastening screw 92 does not exceed the end surface of the second flange surface 22 after fastening is completed.

The application also provides an oil gas recovery pump, which comprises a motor main body (not shown in the figure), a pump head (not shown in the figure) and the multi-claw coupling device 00 according to any embodiment, wherein the multi-claw coupling device 00 is used for connecting the motor main shaft 04 with the pump head main shaft 05 and completing coupling transmission between the motor main body and the pump head.

In summary, the application provides a multi-claw coupling device for connecting a motor and a pump head and an oil gas recovery pump thereof, wherein the multi-claw state device is a split type coupling, the split type coupling is provided with a coupling for connecting a motor main shaft and a coupling for connecting the pump head main shaft, a plurality of special-shaped supporting claws are respectively arranged on the end faces of the two coupling, which are contacted, the two split type couplings are tightly connected through the mutually embedded mode of the supporting claws, the service life of the two couplings is prolonged through rubber gaskets in the middle of the two couplings, and simultaneously, the transmission of motor torque can be ensured.

The above embodiments are provided for illustrating the present application and are not intended to limit the present application, and various changes and modifications can be made by one skilled in the relevant art without departing from the scope of the present application, therefore, all equivalent technical solutions shall fall within the scope of the present disclosure.

Claims

1. A multi-jaw coupling for connecting a motor to a pump head, comprising: a first coupling, a second coupling, and a rubber gasket between the first coupling and the second coupling;

one end of the first coupler is a motor connecting end and is connected with a motor spindle, the other end of the first coupler is a first flange surface, and a plurality of protruding first supporting claws are arranged on the first flange surface;

one end of the second coupler is a pump head connecting end and is connected with a pump head main shaft, the other end of the second coupler is a second flange surface, and a plurality of protruding second supporting claws are arranged on the second flange surface;

the rubber gasket is arranged between the first flange surface and the second flange surface and is provided with a plurality of through holes, and the positions of the through holes respectively correspond to the positions of the first supporting claws and the positions of the second supporting claws;

the first supporting claw and the second supporting claw are respectively inserted into through holes at corresponding positions on the rubber gasket from two sides of the rubber gasket, and the first flange surface and the second flange surface are tightly matched with the rubber gasket.

2. The multi-jaw coupling of claim 1, wherein the length of each of the first and second jaws is greater than the thickness of the rubber gasket, the second jaw extends onto the first flange face, and the first jaw extends onto the second flange face;

the first flange surface is provided with a plurality of first accommodating spaces at corresponding positions of the second supporting claws so as to accommodate the second supporting claws;

the second flange surface is provided with a plurality of second accommodating spaces at corresponding positions of the first supporting claws so as to accommodate the first supporting claws.

3. A multi-jaw coupling as set forth in claim 1, wherein,

the number of the first claws on the first flange surface is three, the three first claws are uniformly distributed on a first circle of the first flange surface, and the central angle clamped by two adjacent first claws is 120 degrees;

the number of the second claws on the second flange surface is three, the three second claws are uniformly distributed on a second circle of the second flange surface, and the central angle clamped between two adjacent second claws is 120 degrees;

the first circle and the second circle are concentric, and the circle centers are all axes.

4. The multi-jaw coupling according to claim 2, wherein the plurality of first receiving spaces are a plurality of arc-shaped recesses formed from the edge of the first flange face toward the axis, and the plurality of second receiving spaces are a plurality of arc-shaped recesses formed from the edge of the second flange face toward the axis.

5. The multi-jaw coupling of claim 1, wherein each of the first and second jaws has a chamfer disposed on a free end thereof.

6. The multi-claw coupling device according to claim 1, wherein a hollow outer sleeve in transition fit with the motor spindle is extended from the motor connecting end, a positioning key slot is arranged on the inner wall of the hollow outer sleeve, and the positioning key slot is matched with a positioning key in the axial direction of the motor spindle to complete positioning connection;

and a clamping flange is arranged in the hollow outer sleeve and between the positioning key groove and the first flange surface, and the diameter of a through hole at the clamping flange is smaller than that of the motor spindle.

7. The multi-jaw coupling according to claim 1, wherein a hollow inner sleeve in transition fit with the pump head spindle is extended from an end surface of the pump head connection end, and a positioning key is provided at a joint portion of the end surface of the pump head connection end and the hollow inner sleeve, and the positioning key is matched with a positioning groove on the pump head spindle to complete positioning connection.

8. The multi-jaw coupling of claim 1, further comprising a first fastening screw securing the motor spindle through a through hole in a first flange face, an outer end face of the first fastening screw not exceeding an end face of the first flange face after fastening is completed.

9. The multi-jaw coupling of claim 1, further comprising a second fastening screw securing the pump head spindle through a through hole in a second flange face, an outer end face of the second fastening screw not exceeding an end face of the second flange face after fastening is completed.

10. An oil and gas recovery pump, characterized by comprising a motor main body, a pump head and a multi-claw coupling device according to any one of claims 1-9, wherein the multi-claw coupling device connects the motor main shaft with the pump head main shaft to complete coupling transmission between the motor main body and the pump head.