Light-weight automobile air conditioner water pump main shaft

Abstract

The utility model belongs to the technical field of main shafts, and particularly relates to a light-weight automobile air-conditioning water pump main shaft, a pump shaft serves as a main body part of the automobile air-conditioning water pump main shaft and is used for transmitting power, a rotor shaft and the pump shaft are coaxially arranged and are used for driving a rotating part of a water pump, and a weight-reducing blind hole is formed in one side, away from the pump shaft, of the rotor shaft. The weight of the main shaft is reduced by removing part of materials, the connecting column is coaxially formed at the left end of the pump shaft and used for being connected with the rotor shaft, the connecting part is in a barrel shape, arranged at the right end of the rotor shaft, used for the connecting column to be inserted and matched with the inner wall conical surface of the right section of the connecting column, and the connecting assembly is arranged between the connecting column and the connecting part. The detachable connection structure is used for ensuring detachable connection between the pump shaft and the rotor shaft and is easy and convenient to mount and dismount and convenient to maintain, and practicability is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of main shafts, and in particular relates to a lightweight main shaft for an automobile air-conditioning water pump. Background Art

[0002] With the rapid development of the automotive industry, energy conservation and emission reduction have become key priorities in automotive design. The water pump main shaft, a critical component in automotive air conditioning systems, has a weight and performance that directly impacts the efficiency and energy consumption of the entire system. Existing water pump main shafts are welded to the pump shaft and rotor shaft, making them difficult to disassemble and separate. This not only increases maintenance costs but also prevents recycling. Utility Model Content

[0003] The purpose of the present invention is to provide a lightweight automobile air-conditioning water pump main shaft in order to solve the problems raised in the above-mentioned background technology.

[0004] In view of this, the utility model provides a lightweight automobile air-conditioning water pump main shaft, comprising a pump shaft;

[0005] The rotor shaft is coaxially arranged with the pump shaft;

[0006] Weight-reducing blind hole: a weight-reducing blind hole is opened on the side of the rotor shaft away from the pump shaft;

[0007] A connecting column is coaxially formed on the left end of the pump shaft, and the right end of the rotor shaft is a barrel-shaped connecting part for the connecting column to be inserted, and the right section of the connecting column is matched with the inner wall surface of the connecting part;

[0008] A connecting component is provided between the connecting column and the connecting portion.

[0009] In the above technical solution, further, the connection component includes:

[0010] Installation grooves: a number of installation grooves are evenly opened on the outer surface of the connecting column;

[0011] The connecting part has a plurality of slots evenly arranged on its circumference to match the mounting slots.

[0012] A telescopic rod is fixedly connected to the bottom of the inner wall of the installation groove;

[0013] A card block is fixedly connected to one end of the telescopic rod, and the card block fits into the card slot;

[0014] Spring: A spring is sleeved on the outside of the telescopic rod, and one end of the spring is fixedly connected to the clamping block, and the other end is fixedly connected to the inner wall of the mounting groove;

[0015] A protective tube is provided, wherein the outer sides of the pump shaft and the rotor shaft are threadedly connected with the protective tube.

[0016] In the above technical solution, further, the weight-reducing blind hole includes a middle blind hole, a front blind hole and a rear blind hole that are connected to each other. The middle blind hole and the rear blind hole are both straight cylindrical. The inner diameter of the front blind hole gradually decreases from left to right, and the front end of the front blind hole is an arc surface.

[0017] In the above technical solution, further, a front transition blind hole is provided between the middle blind hole and the front blind hole, and the inner diameter of the front transition blind hole gradually decreases from left to right.

[0018] In the above technical solution, further, a rear transition blind hole is provided between the middle blind hole and the rear blind hole, and the inner diameter of the rear transition blind hole gradually increases from left to right.

[0019] In the above technical solution, further, a plurality of through holes are evenly opened on the circumference of one side of the pump shaft, and support columns are fixedly inserted into the through holes.

[0020] In the above technical solution, further, a tapered hole is opened on the bottom wall of the connecting part, and the diameter of the tapered hole gradually increases from left to right. A conical protrusion that matches the tapered hole is formed on the left end face of the connecting column. The protrusion is inserted into the tapered hole, and the outer wall of the protrusion is tightly pressed against the inner wall of the tapered hole.

[0021] In the above technical solution, further, the outer wall of the right section of the connecting column is a conical surface whose diameter gradually increases from left to right, and the tapers of the conical surface and the conical hole are different, and the left end face of the connecting column is tightly pressed against the bottom wall of the connecting part.

[0022] The beneficial effects of the utility model are:

[0023] 1. The connecting assembly is arranged between the connecting column and the connecting part to ensure the detachable connection between the pump shaft and the rotor shaft. It is easy to install and disassemble, convenient for maintenance, and improves practicality.

[0024] 2. The outer wall of the right section of the connecting column is a conical surface with a diameter gradually increasing from left to right, forming a certain taper difference with the tapered hole to ensure that the left end face of the connecting column can be tightly pressed against the bottom wall of the connecting part, further enhancing the stability of the connection and further facilitating assembly.

[0025] 3. Several through holes are evenly opened on the circumference of one side of the pump shaft to achieve the effect of weight reduction and lightweight. Support columns are fixedly inserted inside the through holes. Arc-shaped contact surfaces are opened on the upper and lower parts of the support columns. The arc-shaped contact surfaces and the inner wall of the through holes are in contact with each other, which can achieve a firm fit and support effect, achieving lightweight while achieving enhanced support. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural diagram of the utility model;

[0027] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0028] Figure 3 This utility model Figure 2 A partial enlarged view of point A in the middle;

[0029] Figure 4 This is a schematic diagram of the pump shaft end surface structure of the utility model;

[0030] Figure 5 This is a schematic diagram of the support column structure of the utility model;

[0031] The markings in the figure are: 1-pump shaft, 2-rotor shaft, 3-connecting column, 4-connecting part, 6-mounting slot, 7-card slot, 8-telescopic rod, 9-card block, 10-spring, 11-protective tube, 12-middle blind hole, 13-front blind hole, 14-rear blind hole, 15-front transition blind hole, 16-rear transition blind hole, 17-through hole, 18-support column, 19-tapered hole, 20-bump, 22-weight reduction blind hole. DETAILED DESCRIPTION

[0032] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0033] Example 1:

[0034] This embodiment provides a lightweight automobile air-conditioning water pump main shaft, comprising:

[0035] Pump shaft 1;

[0036] The rotor shaft 2 is coaxially arranged with the pump shaft 1;

[0037] A weight-reducing blind hole 22 is provided on the side of the rotor shaft 2 away from the pump shaft 1;

[0038] The left end of the pump shaft 1 is coaxially formed with a connecting column 3, and the right end of the rotor shaft 2 is a barrel-shaped connecting portion 4 for the connecting column 3 to be inserted. The right section of the connecting column 3 is matched with the conical surface of the inner wall of the connecting portion 4;

[0039] A connecting component is provided between the connecting column 3 and the connecting portion 4 .

[0040] As can be seen from this embodiment, the pump shaft 1 serves as the main body of the main shaft of the automobile air-conditioning water pump and is used to transmit power. The rotor shaft 2 is coaxially arranged with the pump shaft 1 and is used to drive the rotating parts of the water pump. A weight-reducing blind hole 22 is provided on the side of the rotor shaft 2 away from the pump shaft 1 to reduce the weight of the main shaft by removing part of the material. The connecting column 3 is coaxially formed at the left end of the pump shaft 1 and is used to connect with the rotor shaft 2. The connecting part 4 is barrel-shaped and is provided at the right end of the rotor shaft 2 for the connecting column 3 to be inserted and cooperates with the inner wall conical surface of the right section of the connecting column 3. The connecting assembly is provided between the connecting column 3 and the connecting part 4 to ensure a detachable connection between the pump shaft 1 and the rotor shaft 2. The installation and disassembly are simple, maintenance is convenient, and practicality is improved.

[0041] Example 2:

[0042] This embodiment provides a lightweight automobile air-conditioning water pump main shaft, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0043] Connectivity components include:

[0044] Mounting grooves 6, a plurality of mounting grooves 6 are evenly opened on the outer surface of the connecting column 3;

[0045] The connecting portion 4 is provided with a plurality of slots 7 evenly distributed around the circumference thereof, which are adapted to the mounting slots 6;

[0046] Telescopic rod 8, the bottom of the inner wall of the mounting groove 6 is fixedly connected with the telescopic rod 8;

[0047] The clamping block 9 is fixedly connected to one end of the telescopic rod 8, and the clamping block 9 fits into the clamping slot 7;

[0048] Spring 10, the outer side of the telescopic rod 8 is provided with a spring 10, and one end of the spring 10 is fixedly connected to the block 9, and the other end is fixedly connected to the inner wall of the mounting groove 6;

[0049] A protective tube 11 is threadedly connected to the outer sides of the pump shaft 1 and the rotor shaft 2 .

[0050] As can be seen from this embodiment, both ends of the block 9 are provided with rounded corners. The connecting column 3 at the left end of the pump shaft 1 is plugged into the connecting portion 4 at the right end of the rotor shaft 2. The block 9 shrinks into the mounting groove 6 during the plugging process and squeezes the spring 10 and the telescopic rod 8. When plugged into a certain position, the block 9 is pushed out of the mounting groove 6 under the elastic action of the spring 10, so that the block 9 is embedded in the slot 7 on the connecting portion 4, completing the docking between the connecting column 3 and the connecting portion 4, and realizing the connection between the pump shaft 1 and the rotor shaft 2. Then, the protective tube 11 is threadedly connected to further strengthen the connection between the pump shaft 1 and the rotor shaft 2. At the same time, it can protect the connecting assembly and prevent the connecting assembly from being disconnected by external collision, thereby improving the service life of the main shaft of the automobile air-conditioning water pump; when disassembling, unscrew the protective tube 11, then press the block 9 in the slot 7 to squeeze the spring 10, so that the block 9 retracts the mounting groove 6, and then the connecting column 3 and the connecting portion 4 are disassembled, thereby realizing the disassembly of the pump shaft 1 and the rotor shaft 2. The installation and disassembly are simple, the maintenance cost is low, and the practicality is high.

[0051] Example 3:

[0052] This embodiment provides a lightweight automobile air-conditioning water pump main shaft, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0053] The weight-reducing blind hole 22 includes a middle blind hole 12, a front blind hole 13 and a rear blind hole 14 that are interconnected. The middle blind hole 12 and the rear blind hole 14 are both straight cylindrical. The inner diameter of the front blind hole 13 gradually decreases from left to right, and the front end of the front blind hole 13 is an arc surface.

[0054] It can be seen from this embodiment that the weight-reducing blind hole 22 includes a middle blind hole 12, a front blind hole 13 and a rear blind hole 14 that are interconnected. The middle blind hole 12 and the rear blind hole 14 are both straight cylindrical, which makes the middle blind hole and the rear blind hole easy to process. The inner diameter of the front blind hole 13 gradually decreases from left to right, and the front end of the front blind hole 13 is a curved surface, which is compatible with the drilling method of the drill bit and is easy to process.

[0055] Example 4:

[0056] This embodiment provides a lightweight automobile air-conditioning water pump main shaft, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0057] A front transition blind hole 15 is provided between the middle blind hole 12 and the front blind hole 13 , and the inner diameter of the front transition blind hole 15 gradually decreases from left to right.

[0058] It can be seen from this embodiment that there is a front transition blind hole 15 between the middle blind hole 12 and the front blind hole 13. The inner diameter of the front transition blind hole 15 gradually decreases from left to right. The arrangement of the front transition blind hole 15 enables the middle blind hole 12 and the front blind hole 13 to be better connected, ensuring the connection strength and preventing breakage at this location.

[0059] Example 5:

[0060] This embodiment provides a lightweight automobile air-conditioning water pump main shaft, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0061] A rear transition blind hole 16 is provided between the middle blind hole 12 and the rear blind hole 14 , and the inner diameter of the rear transition blind hole 16 gradually increases from left to right.

[0062] It can be seen from this embodiment that there is a rear transition blind hole 16 between the middle blind hole 12 and the rear blind hole 14. The inner diameter of the rear transition blind hole 16 gradually increases from left to right. The arrangement of the rear transition blind hole 16 enables the middle blind hole 12 and the rear blind hole 14 to be better connected, ensuring the connection strength and preventing breakage at this location.

[0063] Example 6:

[0064] This embodiment provides a lightweight automobile air-conditioning water pump main shaft, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0065] A plurality of through holes 17 are evenly arranged on one side of the pump shaft 1 , and support columns 18 are fixedly inserted into the through holes 17 .

[0066] It can be seen from this embodiment that a number of through holes 17 are evenly provided on the circumference of one side of the pump shaft 1 to achieve a weight reduction effect and achieve lightweighting. A support column 18 is fixedly inserted into the through hole 17, and arc-shaped contact surfaces are provided on the upper and lower parts of the support column 18. The arc-shaped contact surface and the inner wall of the through hole 17 contact each other, which can achieve a firm fit and support effect, thereby achieving lightweighting while achieving enhanced support.

[0067] Example 7:

[0068] This embodiment provides a lightweight automobile air-conditioning water pump main shaft, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0069] A tapered hole 19 is provided on the bottom wall of the connecting portion 4, and the diameter of the tapered hole 19 gradually increases from left to right. A conical protrusion 20 that matches the tapered hole 19 is formed on the left end face of the connecting column 3. The protrusion 20 is inserted into the tapered hole 19, and the outer wall of the protrusion 20 is tightly pressed against the inner wall of the tapered hole 19.

[0070] As can be seen in this embodiment, the bottom wall of the connecting portion 4 is provided with a tapered hole 19. This is a blind hole, and its diameter gradually increases from left to right. A conical bump 20 is integrally formed on the left end face of the connecting post 3, matching the tapered hole 19. The bump 20 is inserted into the tapered hole 19, with its outer wall pressing tightly against the inner wall of the hole.

[0071] By designing the conical protrusion 20 to cooperate with the tapered hole 19 and the right section of the connecting column 3 to cooperate with the tapered surface 21 of the inner wall of the connecting part 4, the relative position of the rotor shaft 2 and the pump shaft 1 can be corrected. This can enhance the matching accuracy of the rotor shaft 2 and the pump shaft 1, thereby improving the transmission accuracy.

[0072] Example 8:

[0073] This embodiment provides a lightweight automobile air-conditioning water pump main shaft, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0074] The outer wall of the right section of the connecting column 3 is a conical surface with a diameter gradually increasing from left to right, and the conical surface and the conical hole 19 have different tapers. The left end face of the connecting column 3 is tightly pressed against the bottom wall of the connecting part 4.

[0075] It can be seen from this embodiment that the outer wall of the right section of the connecting column 3 is a conical surface whose diameter gradually increases from left to right, forming a certain taper difference with the tapered hole 19 to ensure that the left end face of the connecting column 3 can be tightly pressed against the bottom wall of the connecting part 4, further enhancing the stability of the connection and further facilitating assembly.

[0076] The embodiments of the present application are described above in conjunction with the accompanying drawings. Unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A lightweight automobile air-conditioning water pump main shaft, characterized in that: include: Pump shaft (1); a rotor shaft (2), the rotor shaft (2) being coaxially arranged with the pump shaft (1); A weight-reducing blind hole (22), wherein a side of the rotor shaft (2) away from the pump shaft (1) is provided with a weight-reducing blind hole (22); The left end of the pump shaft (1) is coaxially formed with a connecting column (3), the right end of the rotor shaft (2) is a barrel-shaped connecting portion (4) for the connecting column (3) to be inserted, and the right section of the connecting column (3) is matched with the conical surface of the inner wall of the connecting portion (4); A connecting assembly is provided between the connecting column (3) and the connecting portion (4); Wherein, the connection component includes: Mounting grooves (6), a plurality of mounting grooves (6) are evenly arranged on the outer surface of the connecting column (3); A plurality of card slots (7) are evenly arranged on the circumference of the connecting portion (4) and are adapted to the mounting slots (6); A telescopic rod (8), the bottom of the inner wall of the mounting groove (6) is fixedly connected with the telescopic rod (8); A card block (9), one end of the telescopic rod (8) is fixedly connected to the card block (9), and the card block (9) is fitted into the card slot (7); A spring (10), wherein the outer side of the telescopic rod (8) is provided with a spring (10), and one end of the spring (10) is fixedly connected to the clamping block (9), and the other end is fixedly connected to the inner wall of the mounting groove (6); A protective tube (11) is provided, wherein the outer sides of the pump shaft (1) and the rotor shaft (2) are threadedly connected to the protective tube (11).

2. The lightweight automobile air-conditioning water pump main shaft according to claim 1, characterized in that: The weight-reducing blind hole (22) comprises a middle blind hole (12), a front blind hole (13) and a rear blind hole (14) which are interconnected. The middle blind hole (12) and the rear blind hole (14) are both straight-cylindrical in shape. The inner diameter of the front blind hole (13) gradually decreases from left to right, and the front end of the front blind hole (13) is an arc surface.

3. The lightweight automobile air-conditioning water pump main shaft according to claim 2, characterized in that: A front transition blind hole (15) is provided between the middle blind hole (12) and the front blind hole (13), and the inner diameter of the front transition blind hole (15) gradually decreases from left to right.

4. The lightweight automobile air-conditioning water pump main shaft according to claim 3, characterized in that: A rear transition blind hole (16) is provided between the middle blind hole (12) and the rear blind hole (14), and the inner diameter of the rear transition blind hole (16) gradually increases from left to right.

5. The lightweight automobile air-conditioning water pump main shaft according to claim 4, characterized in that: A plurality of through holes (17) are evenly arranged on the circumference of one side of the pump shaft (1), and support columns (18) are fixedly inserted into the through holes (17).

6. The lightweight automobile air-conditioning water pump main shaft according to claim 5, characterized in that: A tapered hole (19) is provided on the bottom wall of the connecting portion (4), and the diameter of the tapered hole (19) gradually increases from left to right. A conical protrusion (20) matching the tapered hole (19) is formed on the left end surface of the connecting column (3). The protrusion (20) is inserted into the tapered hole (19), and the outer wall of the protrusion (20) is tightly pressed against the inner wall of the tapered hole (19).

7. The lightweight automobile air-conditioning water pump main shaft according to claim 6, characterized in that: The outer wall of the right section of the connecting column (3) is a conical surface whose diameter gradually increases from left to right, and the conical surface and the conical hole (19) have different tapers. The left end face of the connecting column (3) is tightly pressed against the bottom wall of the connecting portion (4).

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