Vane-type rotor pump

Abstract

The application provides a vane rotor pump, comprising a rotor and an oil distribution assembly, wherein the rotor comprises a rotor body and a plurality of vanes telescopically inserted into the rotor body, and a limiting block is arranged on each of opposite sides of the vanes along the axial direction of the rotor body; the oil distribution assembly comprises two side plates arranged on opposite sides of the axial direction of the rotor body, and a disc-shaped limiting groove is arranged on each of the two side plates corresponding to the two limiting blocks, and the limiting blocks are guided to move on the limiting grooves. The vane rotor pump provided by the application replaces the abutment between the existing vanes and the inner wall of the stator with the guided movement of the limiting blocks on the limiting grooves, so that the vanes do not directly contact the inner wall of the stator, and the wear of the vanes and the stator is transferred to the limiting blocks and the limiting grooves, thereby improving the problem that the existing vane rotor pump needs to replace the vanes due to the wear of the vanes and the problem that the pump liquid efficiency is affected due to the wear of the stator.

Description

Technical Field

[0001] This invention belongs to the field of rotor pump technology, and more specifically, relates to a vane rotor pump. Background Technology

[0002] A rotary pump is a pump that increases the energy of a liquid by changing its working volume through the relative motion between the rotor and the pump body. A rotary pump is a rotating positive displacement pump with positive displacement characteristics; its flow rate does not change with back pressure. Rotary pumps can be classified by structure into gear pumps, screw pumps, rotary piston pumps (cam pumps, Roots pumps), flexible impeller pumps, vane pumps, and hose pumps, among others.

[0003] In a vane pump, the vanes are constantly pressed against the inner wall of the stator due to the combined action of centrifugal force, mechanical thrust, and hydraulic force during operation. As a result, the vanes are prone to wear because they are always in contact with and sliding against the stator. However, since the vanes slide out of the rotor slots, they can continuously replenish the wear without significantly affecting the pump's performance.

[0004] However, because the vanes of a vane pump are always in contact with and slide relative to the stator, the inner wall of the stator also wears down due to the friction of the vanes, which increases the inner diameter of the stator. Furthermore, during the operation of the pump, different vanes cause different amounts and locations of wear on the stator due to manufacturing deviations and other reasons, resulting in irregularly shaped wear surfaces on the inner wall of the stator. This creates gaps between the vanes and the stator, reducing the self-priming capacity and pumping efficiency of the vane pump. Summary of the Invention

[0005] The purpose of this invention is to provide a vane rotor pump that solves the problem of vane and stator wear due to friction in existing vane rotor pumps.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is: a vane rotor pump, comprising:

[0007] The rotor includes a rotor body and a plurality of blades slidably inserted on the rotor body, wherein the blades slide radially along the rotor body, and limiting blocks are respectively protruding on opposite sides of the blades along the axial direction of the rotor body;

[0008] The oil distribution assembly includes two side plates respectively disposed at the two shaft ends of the rotor body. Corresponding to the limiting block, each of the two side plates has an annular limiting groove, and the limiting block is adapted to the limiting groove; and

[0009] The stator is fixedly connected to the side plate, the rotor is eccentrically disposed inside the stator, and the stator is coaxially disposed with the limiting groove.

[0010] In a possible implementation, the limiting block is a cylindrical member, one end of the limiting block is rotationally fitted with the vane, and the other end of the limiting block extends into the limiting groove.

[0011] In a possible implementation, the limiting block is a gear member, and corresponding to the limiting block, an inner gear ring that meshes with the limiting block is arranged on the inner wall of the limiting groove away from the rotor body.

[0012] In a possible implementation, the limiting block is arranged in a circular ring shape according to the shape of the limiting groove, corresponding to the vane, a connecting key is arranged on the limiting block, corresponding to the connecting key, a connecting hole is arranged on the vane, one side of the connecting hole is provided with a connecting groove, the limiting block is inserted into the connecting hole, and the connecting key and the connecting groove are inserted and fitted, thereby forming the fixed connection of the vane and the limiting block.

[0013] An annular groove continuously distributed along the circumference of the limiting block is arranged on the outer circumferential surface of the limiting block, and the annular groove is provided with rolling balls that rollingly fit with the inner wall of the limiting groove.

[0014] In a possible implementation, the outer circumferential surface of the rotor body is provided with a sealing groove accommodating the vane, the vane and the sealing groove are slidingly fitted in the radial direction of the rotor body, and the side wall of the sealing groove and the side surface of the vane are sealingly fitted.

[0015] A first flow channel is formed inside the rotor body for communicating two different sealing grooves, and a fluid for cooling the rotor body is filled in the first flow channel and the sealing grooves.

[0016] In a possible implementation, a mounting hole penetrating in the axial direction of the rotor body is arranged at the center of the rotor body, and the rotor body further includes a connecting shaft fixedly connected with the mounting hole, and the connecting shaft penetrates through the two side plates.

[0017] The first flow channel includes two flow-through sections oppositely arranged on the side wall of the mounting hole, and a second flow channel is arranged in the connecting shaft and communicates with the two flow-through sections in the same first flow channel.

[0018] In a possible implementation, the second flow channel is provided with an even number, and the second flow channel is arranged in mirror symmetry with the axis of the connecting shaft as the center.

[0019] In a possible implementation, the inner wall of the sealing groove is provided with a mounting clamping groove, and the mounting clamping groove is provided with a sealing ring sealingly abutting with the vane.

[0020] In a possible implementation, the side plate is provided with a recess accommodating the shaft end of the rotor body.

[0021] In a possible implementation, the second flow channel comprises two oppositely arranged second flow passages, the end of the connecting shaft is provided with a heat exchange block, the heat exchange block is provided with a third flow channel in communication with the two second flow passages, and a plurality of heat dissipation plates are arranged on the outer surface of the heat exchange block.

[0022] The blade rotor pump provided by the application has the beneficial effects that, compared with the prior art, the blade rotor pump in the application uses the limiting groove and the limiting block to replace the abutment between the existing blade and the inner wall of the stator with the guided movement of the limiting block on the limiting groove, so that the blade does not directly contact the inner wall of the stator, the wear of the blade and the stator is transferred to the limiting block and the limiting groove, and thus the problems that the blade needs to be replaced due to the wear of the blade and the pump liquid efficiency is affected due to the wear of the stator of the existing blade rotor pump can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only some embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0024] Figure 1 The three-dimensional structure schematic diagram of the blade rotor pump provided for the first embodiment of the application is shown in the figure.

[0025] Figure 2 The front view structure schematic diagram of the blade rotor pump used in the first embodiment of the application is shown in the figure.

[0026] Figure 3 The structure schematic diagram of the oil distribution disc used in the first embodiment of the application is shown in the figure.

[0027] Figure 4 The assembly schematic diagram of the limiting block and the limiting groove used in the second embodiment of the application is shown in the figure.

[0028] Figure 5 The assembly schematic diagram of the limiting block and the limiting groove used in the third embodiment of the application is shown in the figure.

[0029] Figure 6 The internal structure schematic diagram of the rotor body used in the fourth embodiment of the application is shown in the figure.

[0030] Figure 7 The internal structure schematic diagram of the rotor body used in the fifth embodiment of the application is shown in the figure.

[0031] In the figure:

[0032] 1, rotor body; 11, first flow channel; 12, mounting hole;

[0033] 2, blade; 21, limiting block; 22, sealing gasket; 23, sealing groove; 231, sealing ring;

[0034] 3, side plate; 31, limiting groove; 32, ball; 33, recess;

[0035] 4, connecting shaft; 41, second flow channel; 42, heat exchange block; 421, third flow channel. DETAILED DESCRIPTION

[0036] In order to make the technical problems to be solved by the present application, technical solutions and beneficial effects more clearly, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0037] Please refer to Figure 1 and Figure 2 , the present application will be described. The vane rotor pump includes a stator, a rotor and an oil distribution assembly, wherein the rotor includes a rotor body 1 and a plurality of blades 2 slidably inserted into the rotor body 1, wherein the blade 2 slides along the radial direction of the rotor body 1, and the limiting block 21 is provided on the opposite sides of the blade 2 along the axial direction of the rotor body 1; the oil distribution assembly includes two side plates 3 provided on the two axial ends of the rotor body 1, and the limiting groove 31 is provided on the two side plates 3 corresponding to the two limiting blocks 21, and the limiting block 21 and the limiting groove 31 are matched; the stator is fixedly connected with the side plate 3, the rotor is eccentrically arranged in the stator, and the stator is coaxially arranged with the limiting groove 31.

[0038] The vane rotor pump provided by the present application has the beneficial effects that compared with the prior art, the vane rotor pump in the present application uses the limiting groove 31 and the limiting block 21 to replace the abutting sliding of the existing blade 2 and the inner wall of the stator with the guided movement of the limiting block 21 on the limiting groove 31, so that the blade 2 does not rigidly contact with the inner wall of the stator, and the wear of the blade 2 and the stator is transferred to the limiting block 21 and the limiting groove 31, thereby improving the problem that the existing vane rotor pump needs to replace the blade 2 due to the wear of the blade 2, and the problem that the pump liquid efficiency is affected due to the wear of the stator.

[0039] In the process of running, each blade 2 keeps relatively static while rotating with the rotor body 1, and the rotor body 1 rotates eccentrically in the stator, driving each blade 2 to rotate around the axis of the blade pump stator. At the same time, the limiting block 21 connected with the blade 2 moves in the limiting groove 31, so that the blade 2 has a small gap (less than or equal to 0.05 mm) with the stator. The centrifugal force generated by the rotation of the rotor body 1 is borne by the limiting block 21 and the limiting groove 31, and the inner wall of the blade 2 and the stator will not be damaged due to friction. When maintenance is needed, the limiting block 21 and the side plate 3 can be directly replaced. Of course, as an alternative embodiment, a gasket can be provided at the position where the limiting groove 31 and the limiting block 21 rub, and the gasket is consumed to prevent damage to the inner wall of the limiting groove 31.

[0040] Optionally, the vane rotor pump in the present application can be a single-acting vane pump or a double-acting vane pump. As for the matching relationship between the blade 2 and the rotor body 1, they can be sealingly connected or non-sealingly connected.

[0041] It needs to be considered that due to the problems of inconvenient maintenance or improper use, the movement of the limiting block 21 on the limiting groove 31 may be blocked due to lack of lubrication, and the limiting blocks 21 on both sides of the blade 2 may generate shear force on the blade 2 during the rotation of the rotor body 1 due to different friction coefficients, the blade 2 may be offset due to the action of the shear force, and the rotor pump may be stuck during the operation of the rotor pump, causing damage to the blade 2 or other structures in the rotor pump, and adversely affecting the operation of the rotor pump.

[0042] To improve this problem, in some embodiments, please refer to Figure 1 The limiting block 21 is a cylindrical member, and one end of the limiting block 21 is rotationally connected with the blade 2, and the other end of the limiting block 21 extends into the limiting groove 31.

[0043] As arranged above, the present embodiment utilizes the rotatable cylindrical limiting block 21, and the friction between the limiting block 21 and the limiting groove 31 is offset by the rotation of the limiting block 21, so that the shear force on the blade 2 during operation is not generated, thereby facilitating the stability of the blade 2 during operation.

[0044] It needs to be noted that the material of the side plate 3 corresponding to the position where the limiting groove 31 is arranged can be selected as ball mill cast iron, and the material of the limiting block 21 can be selected as silicon nitride ceramic, and the self-lubricating property between the two is utilized to reduce the friction loss of the limiting block 21 on the limiting groove 31. More specifically, the limiting block 21 and the blade 2 are rotationally connected through the connecting shaft 4.

[0045] In some embodiments, please refer to Figure 4The limiting block 21 is a gear part. Corresponding to the limiting block 21, an inner gear ring engaging with the limiting block 21 is arranged on the inner wall of the limiting groove 31 away from the rotor body 1. The limiting block 21 is engaged and matched with the limiting groove 31 through the inner gear ring.

[0046] In the embodiment, as the limiting block 21 rotates relative to the side plate 3, the limiting block 21 is engaged and connected with the inner gear ring of the limiting groove 31, so that the limiting block 21 rotates relative to the vane 2. In the process of rotating relative to the side plate 3, the vane 2 is telescoped on the rotor body 1 due to the eccentric rotation of the rotor body 1 in the rotor pump.

[0047] The embodiment converts the sliding friction between the limiting block 21 and the limiting groove 31 into the rolling friction of the gear part on the inner gear ring, greatly reduces the friction resistance between the limiting block 21 and the limiting groove 31, and makes the movement of the limiting block 21 in the limiting groove 31 more smooth.

[0048] In some embodiments, as shown in Figure 3 and Figure 4 The limiting block 21 is arranged in a circular ring shape according to the shape of the limiting groove 31. Corresponding to the vane 2, a connecting key is arranged on the limiting block 21. Corresponding to the connecting key, a connecting hole is arranged on the vane 2. One side of the connecting hole is provided with a connecting groove. The limiting block 21 is inserted into the connecting hole, and the connecting key and the connecting groove are inserted and matched to form a fixed connection between the vane 2 and the limiting block 21. An annular groove continuously distributed along the circumferential direction of the limiting block 21 is arranged on the outer circumferential surface of the limiting block 21. The annular groove and the limiting groove 31 are provided with a rolling ball 32 rolling matched with the inner wall of the limiting groove 31.

[0049] The embodiment assembles each vane 2 on a limiting block 21 by arranging the limiting block 21 matched with the key groove of the vane 2, so that the operation of the vane 2 is more stable. The key groove matching between the limiting block 21 and the vane 2 also facilitates the assembly of the vane 2 on the limiting block 21. The rolling ball 32 can form a rolling connection between the limiting block 21 and the limiting groove 31, and replace the existing sliding friction between the vane 2 and the inner wall of the stator with rolling friction between the limiting block 21 and the limiting groove 31, so as to improve the problem that the vane 2 is damaged due to direct contact with the inner wall of the stator.

[0050] In the embodiment, specifically, a groove is arranged on the vane 2. A spline is arranged on the limiting block 21 corresponding to the groove. The circular ring-shaped limiting block 21 located on both sides of the vane 2 is inserted and matched with the spline and the groove to fix the vane 2 on the limiting block 21. In addition, a slotted groove corresponding to the annular groove is arranged on the side of the limiting groove 31 facing the limiting block 21, so that the rolling ball 32 is located between the limiting block 21 and the limiting groove 31 to form the rolling friction between the limiting block 21 and the limiting groove 31.

[0051] In some embodiments, referring to Figure 5 A plurality of openings for installing splines are formed on the annular limiting block 21, so that the limiting block 21 can be adapted to different numbers of vanes 2. Meanwhile, a plurality of fixing holes are formed on the part of the side plate 3 where the limiting groove 31 is formed, so as to install the side plate 3 in the rotor pump.

[0052] In addition, referring to Figure 5 A sealing gasket 22 is further arranged between the limiting block 21 and the limiting groove 31. Specifically, the number of the sealing gasket 22 is two, and the sealing gasket 22 is arranged on both sides in the thickness direction of the limiting block 21; and the cross-sectional shape of the sealing gasket 22 is "L" type, and the two ends of the sealing gasket 22 are respectively clamped on the limiting block 21 and the limiting groove 31, so as to form a sealed connection between the limiting block 21 and the limiting groove 31.

[0053] In some embodiments, referring to Figure 1 , Figure 6 and Figure 7 A sealing groove 23 accommodating the vane 2 is formed on the circumference of the rotor body 1, the vane 2 and the sealing groove 23 are slidingly adapted in the radial direction of the rotor body 1, and the side wall of the sealing groove 23 is sealingly adapted with the side surface of the vane 2; inside the rotor body 1, a first flow channel 11 is formed, the first flow channel 11 is used for connecting different two sealing grooves 23, and the first flow channel 11 and the sealing groove 23 are both filled with fluid for cooling the rotor body 1.

[0054] In this embodiment, as the vane 2 is extended and retracted relative to the rotor body 1, the fluid in the sealing groove 23 flows between different sealing grooves 23 under the extrusion of the vane 2, and the volume of the sealed cavity composed of any one first flow channel 11 and the two sealing grooves 23 connected therewith remains unchanged, so that the extension and retraction of each vane 2 are more related. In addition, the relative friction between the vane 2 and the sealing groove 23 generates heat, and the first flow channel 11 and the fluid arranged thereon can conduct the local heat generated by the friction on the vane 2 to the entire rotor body 1, so as to keep the overall temperature of the rotor body 1 consistent, prevent the mechanical strength of the vane 2 from being reduced due to the accumulation of heat, and enhance the reliability and service life of the vane rotor pump in this embodiment.

[0055] In some embodiments, not shown in the figure, the fluid is cooling oil, so as to cool the vane 2 and lubricate the part where the vane 2 and the sealing groove 23 are in contact. The type of the cooling oil can be flexibly set according to the specific use scene, that is, a cooling oil with a lower viscosity coefficient is used in a lower external temperature, and a cooling oil with a higher viscosity coefficient is used in a higher external temperature. Of course, the fluid can also be hydraulic oil, which can be selected and matched according to the setting principle of the cooling oil, and will not be repeated here.

[0056] In some embodiments, referring to Figure 6 Figure 7 For the shape of the first flow channel 11, the part close to the sealing groove 23 is similar to a horn shape, while the part close to the axis of the rotor body 1 is similar to a cylinder shape, and the inner part of the first flow channel 11 and the interface part between the first flow channel 11 and the sealing cavity are smoothly transitioned to prevent the fluid in the first flow channel 11 from generating turbulence during the extrusion of the blade 2.

[0057] When the blade 2 extrudes the fluid in the corresponding sealing groove 23, the first flow channel 11 is simultaneously connected to another blade 2 that is moving away from the rotor body 1, so that the first flow channel 11 and the two sealing grooves 23 connected thereto form a sealing cavity with a constant volume.

[0058] In this way, due to the eccentric rotation of the rotor body 1 in the stator, the blade 2 will expand and contract relative to the sealing groove 23, and the fluid filled in the sealing cavity will reciprocate inwardly due to extrusion and suction, thereby spreading the heat on the blade 2 to other structures.

[0059] Of course, for the number of first flow channels 11 arranged in the rotor body 1, two first flow channels 11 can be arranged corresponding to a single sealing groove 23 to facilitate the flow of fluid from the sealing groove 23 to another sealing groove 23 through the first flow channel 11.

[0060] It should be noted that for the rotor body 1, in order to facilitate the arrangement of the first flow channel 11 inside, the rotor body 1 can be manufactured by segmenting and assembling. During the segmentation process, each segment of the rotor body 1 has a part of the first flow channel 11 to reduce the processing difficulty of the first flow channel 11 on the rotor body 1. Of course, a drug core with the same structure and size as the first flow channel 11 can also be provided, and the drug core is arranged inside the rotor body 1 before the rotor body 1 solidifies. After the rotor body 1 cools down, the drug core is removed by chemical corrosion, and the rotor body 1 with the first flow channel 11 formed inside is manufactured.

[0061] In some embodiments, referring to Figure 6 Figure 7 The rotor body 1 has a mounting hole 12 extending along the axis thereof, and the rotor body 1 further includes a connecting shaft 4 fixedly connected to the mounting hole 12, the connecting shaft 4 extending through the two side plates 3, the first flow channel 11 further including a flow passage segment arranged opposite to the side wall of the mounting hole 12, and the connecting shaft 4 having a second flow channel 41 extending through the connecting shaft 4 and connected to the two flow passage segments of the same first flow channel 11.

[0062] ​​The second flow channel 41 is communicated with the first flow channel 11, and fluid is driven to move in the second flow channel 41 due to the expansion and contraction of the vane 2 on the sealing groove 23, so that the fluid flows through the connecting shaft 4, thereby facilitating the consistency of the temperature of the rotor body 1 and the connecting shaft 4.

[0063] In addition, the second flow channel 41 is arranged, so that the abutment between the plurality of first flow channels 11 is facilitated, and since the second flow channel 41 can form communication between different first flow channels 11, the corresponding first flow channels 11 in the rotor body 1 do not need to be punched through, thereby simplifying the machining process of the first flow channel 11 in the rotor body 1 and reducing the machining cost of the rotor body 1.

[0064] In some embodiments, the second flow channel 41 is provided with an even number, and the second flow channel 41 is arranged in mirror symmetry with the axis of the connecting shaft 4 as the center. In this way, the arrangement of the second flow channel 41 on the connecting shaft 4 is more uniform, so as to improve the dynamic balance performance of the connecting shaft 4 during rotation.

[0065] In addition, it should be noted that in the rotor pump in the embodiment, each sealing groove 23 is divided into a high-pressure area and a low-pressure area due to the expansion and contraction of the vane 2, and a second flow channel 41 is communicated between the high-pressure area sealing groove 23 and the low-pressure area sealing groove 23. Due to the different specifications of the vane rotor pump, the number of high-pressure areas and low-pressure areas can be multiple, and the number is set to be greater than zero and an integer multiple of two, which is also convenient for respectively communicating a plurality of high-pressure area sealing grooves 23 and a plurality of low-pressure area sealing grooves 23.

[0066] In addition to the above feasible embodiments, as an alternative real-time manner, the second flow channel 41 is communicated with an oil replacement structure arranged outside the rotor pump, which is not shown in the drawings. It should be noted that this embodiment is suitable for a vane rotor pump with a small number of vanes 2. In the embodiment, a first flow channel 11 and a second flow channel 41 are arranged corresponding to each sealing cavity, so the number of second flow channels 41 should not be too many, and the second flow channel 41 and the first flow channel 11 also have a transition slope to prevent cavitation during fluid flow in each flow channel.

[0067] In some embodiments, for the manufacturing process of the second flow channel 41, the connecting shaft 4 can be punched by laser punching, and a long hole parallel to the axis of the connecting shaft 4 is punched through at the end of the connecting shaft 4 by laser punching, electric drill punching or lathing processing, and then the second flow channel 41 is sealed by welding.

[0068] When the cooling liquid is filled into the sealing groove 23, the first flow channel 11 and the second flow channel 41, the vane 2 and the rotor body 1 can be first immersed into a cooling pool containing the cooling liquid, and then the assembly of the vane 2 and the rotor body 1 is performed in the cooling pool.

[0069] In some embodiments, referring to Figure 1 and Figure 6 , in order to enhance the sealing between the sealing groove 23 and the vane 2, a mounting clamping groove is arranged on the inner wall of the sealing groove 23, and a plurality of sealing rings 231 are arranged in the mounting clamping groove and sealingly abut against the vane 2.

[0070] In this way, the sealing connection between the sealing groove 23 and the sealing ring 231 is formed by using the sealing ring 231, and the fluid in the sealing groove 23 is prevented from flowing into other structures in the rotor pump.

[0071] Optionally, the sealing groove 23 in the embodiment is clamped on the inner wall of the sealing groove 23 and abuts against the vane 2. In addition, a plurality of sealing rings 231 and mounting clamping grooves are arranged in the sealing groove 23 along the direction close to the axis of the rotor body 1, and a transition fillet is arranged on the end of the vane 2 close to the axis of the rotor body 1.

[0072] Optionally, the material of the sealing ring 231 can be vulcanized rubber, and the sealing ring 231 is embedded in the mounting clamping groove in a hot vulcanization forming manner to prevent the sealing ring 231 from falling off the mounting clamping groove.

[0073] In some embodiments, referring to Figure 3 , the recess 33 accommodating the axial end of the rotor body 1 is formed on the side plate 3. In this way, the assembly between the oil distribution assembly and the rotor body 1 is more compact, and the working space occupied by the vane rotor pump in the embodiment is reduced.

[0074] More specifically, the shape of the recess 33 is arranged according to the shape of the end surface of the rotor body 1.

[0075] In addition, the oil inlet channel and the oil outlet channel are arranged on both side plates 3, and the arrangement of the oil inlet channel and the oil outlet channel on the two side plates 3 can be flexibly arranged according to the structure type of the vane pump, which is not repeated here.

[0076] In some embodiments, referring to Figure 7 , the second flow channel 41 includes two oppositely arranged second flow passages, the end of the connecting shaft 4 is provided with a heat exchange block 42, the heat exchange block 42 is provided with a third flow channel 421 communicating with the second flow channel 41, and a plurality of heat dissipation plates are arranged on the outer surface of the heat exchange block 42.

[0077] In this way, the heat dissipation plate arranged on the outer surface of the heat exchange block 42 can dissipate heat of the fluid flowing through the third flow channel 421, thereby cooling the fluid flowing through the sealing groove 23, the first flow channel 11, the second flow channel 41 and the third flow channel 421.

[0078] In addition, the heat dissipation plate can dissipate heat in the connecting shaft 4 to the outside of the rotor pump in a wind cooling manner by using air flow in nature during rotation of the connecting shaft 4, thereby improving the problem of heat accumulation in the rotor pump due to friction of the internal structure, and improving the reliability of the rotor pump during use.

[0079] In this embodiment, the heat exchange block 42 and the third flow channel 421 arranged in the heat exchange block 42 are arranged to facilitate communication of the second flow channel 41 in the connecting shaft 4, thereby reducing the processing difficulty of the second flow channel 41 in the connecting shaft 4.

[0080] The heat dissipation plate in this embodiment is cooled by air during rotation of the connecting shaft 4, and the heat exchange block 42 is cooled in a wind cooling manner, thereby enhancing the heat dissipation effect of the rotor pump.

[0081] The above only describes the preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0082] The above only describes the preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A vane-type rotor pump characterized by comprising: The utility model relates to a rotor, a stator and an oil distribution assembly, and belongs to the field of oil distribution assemblies. The rotor comprises a rotor body and a plurality of blades slidably inserted into the rotor body, wherein the blades slide along the radial direction of the rotor body, and opposite sides of the blades are respectively provided with limit blocks along the axial direction of the rotor body. The oil distribution assembly comprises two side plates respectively arranged at the axial ends of the rotor body, and a ring-shaped limit groove is arranged on each of the two side plates corresponding to the limit blocks, and the limit blocks are matched with the limit grooves. The stator is fixedly connected with the side plates, the rotor is eccentrically arranged in the stator, and the stator is coaxially arranged with the limit groove. A sealing groove is arranged on the outer circumferential surface of the rotor body to accommodate the blades, the blades and the sealing groove are slidably matched in the radial direction of the rotor body, and the side wall of the sealing groove is sealingly matched with the side surface of the blade. A first flow channel is formed in the rotor body to communicate with different sealing grooves, and a fluid for cooling the rotor body is filled in the first flow channel and the sealing grooves. A mounting hole is arranged in the center of the rotor body and penetrates the rotor body along the axial direction, and the rotor body further comprises a connecting shaft fixedly connected with the mounting hole, and the connecting shaft penetrates the two side plates. The first flow channel comprises two flow-through sections oppositely arranged on the side wall of the mounting hole, and a second flow channel is arranged in the connecting shaft and communicates with the two flow-through sections of the same first flow channel.

2. The vane-type rotor pump according to claim 1, characterized by The limit block is a cylindrical member, one end of the limit block is rotationally matched with the blade, and the other end of the limit block extends into the limit groove.

3. A vane-type rotor pump according to claim 2, characterized in that The limit block is a gear member, and an inner gear ring is arranged on the inner wall of the limit groove away from the rotor body corresponding to the limit block and meshing with the limit block.

4. The vane-type rotor pump according to claim 1, wherein The limit block is annular according to the shape of the limit groove, a connecting key is arranged on the limit block corresponding to the blade, a connecting hole is arranged on the blade corresponding to the connecting key, a connecting groove is arranged on one side of the connecting hole, the limit block is inserted into the connecting hole, and the connecting key and the connecting groove are inserted and matched to form the fixed connection between the blade and the limit block. An annular groove is arranged on the outer circumferential surface of the limit block and continuously distributed along the circumferential direction of the limit block, and a rolling ball is arranged in the annular groove and rolling matched with the inner wall of the limit groove.

5. The vane-type rotor pump according to claim 1, wherein The second flow channel is provided with an even number of second flow channels, and the second flow channels are symmetrically arranged with the axis of the connecting shaft as the center.

6. The vane-type rotor pump according to claim 1, wherein An installation clamping groove is arranged on the inner wall of the sealing groove, and a sealing ring is arranged in the installation clamping groove and sealingly abuts against the blade.

7. The vane-type rotor pump according to claim 1, wherein A recess is formed on the side plate to accommodate the axial end of the rotor body.

8. The vane-type rotor pump according to claim 1, wherein The second flow channel comprises two oppositely arranged second flow-through sections, the end of the connecting shaft is provided with a heat exchange block, a third flow channel is arranged on the heat exchange block and communicates with the two second flow-through sections, and a plurality of heat dissipation plates are arranged on the outer surface of the heat exchange block.

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