Pump

Abstract

The invention relates to a pump which comprises a base, and a main shaft hole penetrates through the base; the shaft rod is rotatably arranged in the main shaft hole in a penetrating manner; the gear set is mounted at one end of the shaft rod; one side face of the rear cover is concaved inwards to form a flowing space, an inlet and an outlet are formed in the rear cover in a penetrating mode, the inlet and the outlet are communicated with the flowing space, and the rear cover is arranged on the gear set in a covering mode; the rotor group is arranged at the other end of the shaft rod; the sealing cover covers the rotor set and is fixed on the front side surface of the base; the front cover covers the sealing cover and is fixed on the front side surface of the base; the stator group is arranged in the front cover; therefore, when the liquid is conveyed, the liquid can enter the accommodating space of the sealing cover through the main shaft hole, so that the rotating rotor group is lubricated and cooled, and the effects of reducing the rotating friction force and prolonging the service life are achieved; the detachable rear cover has the effect of facilitating maintenance of the gear set.

Description

Technical Field

[0001] The present invention relates to the technical field of fluid conveying devices, in particular to a pump. Background Art

[0002] The tank pump of the prior art mainly comprises a housing, a gear set, a stator set and a rotor set. The housing is divided into two internal spaces by a partition. A gear set is installed in one space for conveying liquid. The stator set and the rotor set are installed in the other space. The rotor set and the gear set are linked by a shaft passing through the partition. An oil seal is provided between the shaft and the partition to prevent liquid from flowing from the end with the gear set through the gap between the shaft and the partition to the end with the rotor. After the rotor set rotates relative to the stator set, the shaft can be driven to drive the gear set to pump water.

[0003] However, the casing of the prior art tank pump is a closed structure. The gear set is easily worn out under long-term high-speed operation, so it needs to be replaced frequently. However, because the casing is an integrated design, it is inconvenient to disassemble and replace the gear set. In addition, the rotor set will also be worn out during rotation, and high temperature will be generated, which will affect its service life. Therefore, the overall structure of the prior art tank pump has the above-mentioned problems and shortcomings, and it is indeed necessary to improve it. Summary of the invention

[0004] In view of the fact that the tank pump of the prior art will cause many inconveniences when disassembling and replacing the gear group, and the rotor group will be worn during the rotation process and will generate high temperature and affect its service life, the present invention provides a pump, which has a main shaft hole passing through the base and a rotor group covered with a cover, so that liquid can flow into the cover to lubricate and dissipate heat for the rotor group.

[0005] In order to achieve the above-mentioned purpose of the invention, the technical means adopted by the present invention is to design a pump, which comprises:

[0006] A base having a front side and a rear side, the front side and the rear side are located on opposite sides, and the base is penetrated by a main shaft hole, the main shaft hole communicates with the front side and the rear side;

[0007] A shaft rod rotatably inserted into the main shaft hole;

[0008] a gear set mounted on the rear side and connected to one end of the shaft;

[0009] A rear cover, one side of which is concave to form a flow space, the rear cover is provided with an inlet and an outlet, the inlet and the outlet are connected to the flow space, the rear cover is covered on the rear side of the base, and the gear set is located in the flow space;

[0010] a rotor assembly disposed at the other end of the shaft;

[0011] A cover, one side of which is concave to form a receiving space, the cover is disposed on the rotor assembly and fixed to the front side of the base;

[0012] A front cover, which is disposed on the cover and fixed to the front side of the base;

[0013] A stator assembly is fixedly arranged in the front cover, and the position of the stator assembly corresponds to the position of the rotor assembly.

[0014] Further, the pump, wherein the base further includes a secondary shaft hole, the secondary shaft hole passes through the base and is connected to the accommodating space, the gear set includes a driving tooth and a driven tooth, the driving tooth is installed on one end of the shaft that passes through the rear side surface, the driven tooth is rotatably penetrated in the secondary shaft hole through a rotating shaft, and the driving tooth is meshed with the driven tooth.

[0015] Furthermore, the pump further comprises a through hole, which passes through the base and connects the flow space and the accommodating space.

[0016] Furthermore, in the pump, the rear cover is disposed on the rear side of the base and is locked by a plurality of locking members.

[0017] Further, the pump, wherein the front side surface of the base is concavely formed with a groove, the groove has an inner annular wall, the accommodating space of the cover has a cover opening, the cover is provided with an annular convex portion around the periphery of the cover opening, the annular convex portion of the cover is located in the groove and abuts against the inner annular wall.

[0018] The advantages of the present invention are as follows: by penetrating the main shaft hole, the secondary shaft hole and the through hole in the base and providing a cover, when conveying liquid, the liquid will not only flow through the inlet and the outlet, but also enter the accommodating space of the cover through the main shaft hole, the secondary shaft hole and the through hole, thereby lubricating and dissipating the heat of the rotating rotor group, thereby reducing the rotational friction and increasing the service life; the detachable rear cover has the effect of facilitating the repair and maintenance of the gear group. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional appearance diagram of the present invention.

[0020] Figure 2 It is an exploded view of the main components of the present invention.

[0021] Figure 3 This is an exploded view of the main components of the present invention from another angle.

[0022] Figure 4End view of the present invention with the back cover opened.

[0023] Figure 5 It is an end cross-sectional view of the present invention.

[0024] Figure 6 It is a cross-sectional view of the present invention.

[0025] Figure 7 Another cross-sectional view of the present invention. DETAILED DESCRIPTION

[0026] The following is a further description of the technical means adopted by the present invention to achieve the predetermined purpose of the invention with reference to the accompanying drawings and preferred embodiments of the present invention.

[0027] See also Figure 1 and Figure 2 As shown, the pump of the present invention comprises a base 10 , a shaft 20 , a gear set 30 , a rear cover 40 , a rotor set 50 , a sealing cover 60 , a front cover 70 and a stator set 80 .

[0028] See also Figures 2 to 5 As shown, the base 10 has a front side surface 11 and a rear side surface 12, and the front side surface 11 and the rear side surface 12 are located on opposite sides. The front side surface 11 of the base 10 is concave to form a groove 111, and the groove 111 has an inner ring wall 112. The base 10 is penetrated by a main shaft hole 121, a secondary shaft hole 122 and a through hole 123. The main shaft hole 121, the secondary shaft hole 122 and the through hole 123 are arranged at intervals and connect the front side surface 11 and the rear side surface 12, but this is not limited to it. The base 10 may not form the groove 111, the secondary shaft hole 122 may not be through, and may not form the through hole 123.

[0029] The shaft rod 20 is rotatably inserted into the main shaft hole 121 , and two ends of the shaft rod 20 are respectively inserted into the front side surface 11 and the rear side surface 12 of the base 10 .

[0030] The gear set 30 includes a driving tooth 31 and a driven tooth 32 . The driving tooth 31 is mounted on one end of the shaft 20 passing through the rear side surface 12 . The driven tooth 32 is rotatably disposed in the secondary shaft hole 122 via a rotating shaft 321 . The driving tooth 31 meshes with the driven tooth 32 .

[0031] See also Figure 2 , Figure 5 and Figure 7As shown, one side of the rear cover 40 is concave to form a flow space 41, and the rear cover 40 is provided with an inlet 42 and an outlet 43, and the inlet 42 and the outlet 43 are connected to the flow space 41. The rear cover 40 is covered on the rear side of the base 10, and is locked to the base 10 through a plurality of locking pieces penetrating the rear cover 40, and the driving teeth 31 and the driven teeth 32 are located in the flow space 41, but this is not limited to this, and the rear cover 40 may also be omitted, and the rear cover 40 and the base 10 may be changed into an integrally formed container structure.

[0032] The rotor assembly 50 is disposed at one end of the shaft 20 passing through the front side surface 11 . The rotor assembly 50 is a component of a motor in the prior art, so the detailed structure is not described again.

[0033] See also Figure 2 , Figure 3 , Figure 6 and Figure 7 As shown, the cover 60 is covered on the rotor assembly 50 and fixed to the front side surface 11 of the base 10. Specifically, one side surface of the cover 60 is concave to form a accommodating space 61 and a cover opening 62 connected to the accommodating space 61. The cover 60 is convexly provided with an annular convex portion 63 around the periphery of the cover opening 62. The annular convex portion 63 of the cover 60 is located in the groove 111 and abuts against the inner annular wall 112, so as to seal the rotor assembly 50 in the accommodating space 61, and the main shaft hole 121, the secondary shaft hole 122 and the through hole 123 are connected to the accommodating space 61.

[0034] The front cover 70 is covered on the sealing cover 60 and fixed to the front side 11 of the base 10. Specifically, the front cover 70 is a container structure, which has an installation space 71 and an installation port 72 connected to the installation space 71. The front cover 70 accommodates the sealing cover 60 in the installation space 71 through the installation port 72 and is fixed to the base 10.

[0035] The stator assembly 80 is fixedly disposed in the front cover 70 , and the position of the stator assembly 80 corresponds to the position of the rotor assembly 50 . The stator assembly 80 is a component of a motor in the prior art, so the detailed structure is not repeated any more.

[0036] When using the present invention, please refer to Figure 2 , Figure 5 and Figure 7 As shown, after the rotor assembly 50 rotates relative to the stator assembly 80, the driving shaft 20 rotates synchronously, so that the active teeth 31 drive the driven teeth 32 to rotate, and the gear assembly 30 can suck the liquid from the inlet 42 and discharge it from the outlet 43, thereby achieving the function of conveying the liquid. In operation, in addition to flowing through the inlet 42 and the outlet 43, the liquid will also enter the accommodating space 61 of the cover 60 through the main shaft hole 121, the secondary shaft hole 122 and the through hole 123, thereby lubricating and dissipating the heat of the rotating rotor assembly 50, thereby reducing the rotational friction and increasing the service life; the detachable rear cover 40 has the effect of facilitating the maintenance of the gear assembly 30.

[0037] The above is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been recorded as a preferred embodiment as above, it is not used to limit the present invention. Any technician with common knowledge in the technical field can make some changes or modifications to the technical contents recorded above as equivalent embodiments of equivalent changes without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A pump, characterized in that: Include: A base having a front side and a rear side, the front side and the rear side are located on opposite sides, and the base is penetrated by a main shaft hole, the main shaft hole communicates with the front side and the rear side; A shaft rod rotatably inserted into the main shaft hole; a gear set mounted on the rear side and connected to one end of the shaft; A rear cover, one side of which is concave to form a flow space, the rear cover is provided with an inlet and an outlet, the inlet and the outlet are connected to the flow space, the rear cover is covered on the rear side of the base, and the gear set is located in the flow space; a rotor assembly disposed at the other end of the shaft; A cover, one side of which is concave to form a receiving space, the cover is disposed on the rotor assembly and fixed to the front side of the base; A front cover, which is disposed on the cover and fixed to the front side of the base; A stator assembly is fixedly arranged in the front cover, and the position of the stator assembly corresponds to the position of the rotor assembly.

2. The pump according to claim 1, characterized in that The base also includes a secondary shaft hole, which passes through the base and is connected to the accommodating space. The gear set includes a driving tooth and a driven tooth. The driving tooth is installed on one end of the shaft that passes through the rear side surface. The driven tooth is rotatably inserted into the secondary shaft hole through a rotating shaft, and the driving tooth is meshed with the driven tooth.

3. A pump according to claim 1 or 2, characterized in that The pump further comprises a through hole, which passes through the base and communicates with the flow space and the accommodating space.

4. The pump according to claim 3, characterized in that The rear cover is arranged on the rear side of the base and is locked by a plurality of locking members.

5. The pump according to claim 4, characterized in that The front side surface of the base is concave to form a groove, and the groove has an inner ring wall. The accommodating space of the cover has a cover opening. The cover is provided with an annular convex portion around the periphery of the cover opening. The annular convex portion of the cover is located in the groove and abuts against the inner ring wall.

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