Water pump main shaft with efficient sealing device

Abstract

The utility model relates to the technical field of water pump main shafts, and discloses a water pump main shaft with an efficient sealing device, which comprises a water pump main shaft main body, the surface of the water pump main shaft main body is fixedly connected with two connecting discs, and the surface of each connecting disc is provided with a plurality of through holes. According to the water pump main shaft with the efficient sealing device, through the arrangement of the sealing mechanism, when the water pump main shaft is used, two sealing rings are installed in a sealing groove formed in the surface of a movable ring, and the sealing rings are connected with positioning grooves in a static ring, so that a gap between the movable ring and the static ring is sealed; buffering springs are further installed in the sealing rings and enable the sealing rings to be tightly attached to the upper contact face and the lower contact face through positive and negative acting force, so that the effect of improving the sealing performance of the sealing rings is achieved, and the situation that the sealing performance is reduced due to aging of the sealing rings, lubricating oil leaks, and the service life of the water pump main shaft body is affected is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to water pump main shaft technical field especially relates to a water pump main shaft with high -efficient sealing device. BACKGROUND

[0002] Water pump as industrial production, city water supply, agricultural irrigation etc. many fields indispensable equipment, its stability and reliability of performance are important. Water pump main shaft as one of the core components of water pump, is responsible for transmission power and drives the impeller rotation, ensure that water pump realizes fluid delivery function. And around the sealing technology of water pump main shaft, especially the sealing of static ring and dynamic ring connecting place, and the related lubricating oil port sealing problem, has been the focus and research of the industry.

[0003] In order to reduce the friction between static ring and dynamic ring, improve sealing performance and service life, usually will set up lubricating oil port at the connecting place of both, form lubricating film by injecting lubricating oil, reduce wear and tear, however, static ring and dynamic ring both sides usually will be equipped with sealing ring and sealed, avoid lubricating oil leakage, the traditional sealing ring is easy to cause sealing ring aging after long time use, sealing performance reduces, causes lubricating oil leakage, shortens the service life of water pump main shaft, therefore, a water pump main shaft with high -efficient sealing device is proposed. SUMMARY

[0004] (I) technical problem solved

[0005] The utility model discloses a water pump main shaft with high -efficient sealing device, to solve the problem of the above background art that in order to reduce the friction between static ring and dynamic ring, improve sealing performance and service life, usually will set up lubricating oil port at the connecting place of both, form lubricating film by injecting lubricating oil, reduce wear and tear, however, static ring and dynamic ring both sides usually will be equipped with sealing ring and sealed, avoid lubricating oil leakage, the traditional sealing ring is easy to cause sealing ring aging after long time use, sealing performance reduces, causes lubricating oil leakage, shortens the service life of water pump main shaft.

[0006] (II) technical scheme

[0007] In order to achieve the above object, the utility model discloses a water pump main shaft with high -efficient sealing device through the following technical schemes, a water pump main shaft main body is fixedly connected with two connecting discs on the surface, a plurality of through -holes are seted up on the surface of connecting disc, the inside grafting of through -hole has the strengthening mechanism, the edge fixedly connected with the dynamic ring of water pump main shaft main body surface one side, two sealing grooves are seted up on the both sides of the surface of dynamic ring, and the sealing mechanism is installed in the sealing groove, and the sealing mechanism includes the sealing ring that installs in the sealing groove, and the inside installation of sealing ring has the buffer spring, the strengthening mechanism includes the strengthening rod that grafts in the inside of through -hole, and the both sides of strengthening rod are all seted up with the threaded hole, and the inside screw thread connection of threaded hole has the locating nut.

[0008] As a further scheme of the utility model, the both sides of the surface of the reinforcing rod are provided with sealing gaskets, and the sealing gaskets are installed on one side of the locating nut. Through the setting of the locating nut, the reinforcing rod is fixed.

[0009] As a further scheme of the utility model, the surface of the dynamic ring is rotatably connected with a static ring, and the surface of the static ring is provided with a sealing cover. Through the setting of the sealing cover, the sealing effect is achieved.

[0010] As a further scheme of the utility model, the inner wall of the static ring is provided with two positioning grooves, and the positioning grooves are installed on the surface of the sealing ring. Through the setting of the sealing ring, the sealing effect is achieved.

[0011] As a further scheme of the utility model, the surface of the sealing cover is provided with an oil inlet, and the surface of the oil inlet is screw-connected with a sealing cover. Through the setting of the sealing cover, the oil inlet is sealed.

[0012] As a further scheme of the utility model, the distal end of the water pump main shaft main body is fixedly connected with a runner, and a plurality of fan blades are installed in the runner. Through the setting of the fan blades, the drainage effect is achieved.

[0013] As a further scheme of the utility model, the right distal end of the water pump main shaft main body is fixedly connected with a flange connecting piece, and a plurality of positioning holes are formed in the surface of the flange connecting piece. Through the setting of the flange connecting piece, the water pump main shaft main body is connected.

[0014] (Three) beneficial effects

[0015] The utility model provides a water pump main shaft with high -efficient sealing device has the following beneficial effects:

[0016] 1. The water pump main shaft with high-efficiency sealing device, through the setting of the sealing mechanism, two sealing rings are installed in the sealing groove arranged on the surface of the moving ring during use, and the sealing rings are connected with the positioning groove in the static ring, so as to seal the gap between the moving ring and the static ring, and the buffer spring is further installed in the sealing ring, the buffer spring utilizes the counteracting force to make the sealing ring tightly contact the upper and lower contact surfaces, so that the sealing performance of the sealing ring is improved, the sealing performance is prevented from being reduced due to aging of the sealing ring, and then the lubricating oil is prevented from leaking, and the service life of the water pump main shaft body is affected.

[0017] 2. The water pump main shaft with high-efficiency sealing device, through the setting of the reinforcing mechanism, the water pump main shaft body can bear various complex loads, such as torque and bending moment, during use, long-term operation can cause local stress concentration of the main shaft, affect the mechanical properties and reliability of the main shaft, and even cause fatigue fracture and other faults, therefore, the reinforcing rods which can be detached are arranged on the surface of the water pump main shaft body, the reinforcing rods are arranged in a ring shape on the surface of the water pump main shaft body, and the reinforcing rods are fixed by cooperating with the positioning nuts and the sealing gaskets, so that the structural strength of the water pump main shaft body is improved, and fatigue fracture and other safety faults are avoided. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is a whole structure schematic view of the utility model;

[0019] Fig. 2 It is a moving ring structure schematic view of the utility model;

[0020] Fig. 3 It is a reinforcing mechanism structure schematic view of the utility model;

[0021] Fig. 4 It is a sealing mechanism structure schematic view of the utility model.

[0022] In the drawing: 1, water pump main shaft body; 2, connecting disc; 3, reinforcing mechanism; 301, reinforcing rod; 302, positioning nut; 4, moving ring; 5, sealing mechanism; 501, sealing ring; 502, buffer spring; 6, sealing gasket; 7, static ring; 8, sealing cover; 9, oil inlet; 10, sealing cover; 11, runner; 12, fan blade; 13, flange connecting piece. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Please refer to Figs. 1 to 4The utility model provides a technical scheme: a water pump main shaft with high -efficient sealing device, including water pump main shaft main body 1, water pump main shaft main body 1's surface fixedly connected with two connecting disc 2, and the surface of connecting disc 2 is equipped with a plurality of through -hole, and the inside grafting of through -hole has the strengthening mechanism 3, through the setting of strengthening mechanism 3, to reach the effect of improving water pump main shaft main body 1 structural strength, avoid the fatigue fracture and so on safety trouble, and the edge fixedly connected with the ring 4 of water pump main shaft main body 1 surface one side, and the surface both sides of ring 4 are equipped with two sealing grooves, and the inside mounting of sealing groove has sealing mechanism 5, through the setting of sealing mechanism 5, to reach the effect of improving sealing ring 501 sealing performance, avoid the sealing ring 501 ageing and lead to the sealing performance decline, and then make lubricating oil leak, influence water pump main shaft main body 1's service life,

[0025] Sealing mechanism 5 includes sealing ring 501 installed in the sealing groove, and buffer spring 502 is installed in the inside of sealing ring 501.

[0026] Strengthening mechanism 3 includes reinforcing rod 301 inserted into the inside of through -hole, and threaded holes are formed in the both sides of reinforcing rod 301, and positioning nut 302 is screw connected in the inside of threaded hole.

[0027] Sealing gasket 6 is installed on the both sides of the surface of reinforcing rod 301, and sealing gasket 6 is installed on one side of positioning nut 302, and positioning nut 302 is used to fix reinforcing rod 301.

[0028] Rotatably connected with static ring 7 on the surface of ring 4, sealing cover 8 is installed on the surface of static ring 7, and sealing cover 8 is used to seal.

[0029] Two positioning grooves are formed in the inner wall of static ring 7, and positioning groove is installed on the surface of sealing ring 501, and sealing ring 501 is used to seal.

[0030] Oil inlet 9 is formed on the surface of sealing cover 8, and sealing cover 10 is screw connected on the surface of oil inlet 9, and sealing cover 10 is used to seal oil inlet 9.

[0031] Rotatably connected with static ring 7 on the surface of ring 4, sealing cover 8 is installed on the surface of static ring 7, and sealing cover 8 is used to seal.

[0029] Two positioning grooves are formed in the inner wall of static ring 7, and positioning groove is installed on the surface of sealing ring 501, and sealing ring 501 is used to seal.

[0030] Oil inlet 9 is formed on the surface of sealing cover 8, and sealing cover 10 is screw connected on the surface of oil inlet 9, and sealing cover 10 is used to seal oil inlet 9.

[0031] Water pump main shaft main body 1 is fixedly connected with runner 11 at the end, and a plurality of fan blades 12 are installed in the inside of runner 11, and fan blades 12 are used to guide flow.

[0032] Flange connecting piece 13 is fixedly connected on the right end of water pump main shaft main body 1, and a plurality of positioning holes are formed on the surface of flange connecting piece 13, and flange connecting piece 13 is used to connect water pump main shaft main body 1.

[0033] In the utility model, the working steps of the device are as follows:

[0034] The first step: in use, the sealing groove on the surface of the moving ring 4 is provided with two sealing rings 501, and the sealing ring 501 is connected with the positioning groove in the static ring 7, so as to seal the gap between the moving ring 4 and the static ring 7, and the buffer spring 502 is further installed in the sealing ring 501, and the buffer spring 502 utilizes the counteracting force to make the sealing ring 501 tightly contact the upper and lower contact surfaces;

[0035] The second step: in use, the water pump shaft body 1 bears various complex loads, such as torque and bending moment, and long-term operation will cause local stress concentration of the shaft, affect the mechanical properties and reliability, and even cause fatigue fracture and other faults, therefore, the detachable reinforcing rod 301 is arranged on the surface of the water pump shaft body 1, the reinforcing rod 301 is arranged in a ring shape on the surface of the water pump shaft body 1, and the reinforcing rod 301 is fixed by cooperating with the positioning nut 302 and the sealing gasket 6.

[0036] It should be noted that the device structure and the drawings of the utility model mainly describe the principle of the utility model, and the setting of the power mechanism, the power supply system and the control system of the device is not completely described in the technical principle of the design, and under the premise that the above-mentioned principle of the utility model is understood by the person skilled in the art, the specific power mechanism, power supply system and control system can be clearly known, and the control mode of the application file is automatically controlled by the controller, and the control circuit of the controller can be realized by simple programming of the person skilled in the art;

[0037] The standard parts used can be purchased from the market, and can be ordered according to the description and drawings, and the specific connection mode of each part adopts the conventional bolt, rivet, welding and other conventional means in the prior art, the mechanical parts and equipment adopt the conventional type in the prior art, and the components known by the person skilled in the art, and the structure and principle thereof can be known by the person skilled in the art through the technical manual or through the conventional experimental method.

[0038] Although the embodiments of the utility model have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principle and spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A water pump shaft having a high efficiency sealing device, comprising a water pump shaft body (1), characterized in that: The surface of the water pump main shaft body (1) is fixedly connected with two connecting discs (2), the surface of the connecting disc (2) is provided with a plurality of through holes, the inside of the through hole is inserted with a reinforcing mechanism (3), the edge of the surface of the water pump main shaft body (1) is fixedly connected with a dynamic ring (4), the surface of the dynamic ring (4) is provided with two sealing grooves on both sides, the inside of the sealing groove is provided with a sealing mechanism (5), The sealing mechanism (5) comprises a sealing ring (501) mounted in the sealing groove, and a buffer spring (502) is mounted in the sealing ring (501); The reinforcing mechanism (3) comprises a reinforcing rod (301) inserted into the through hole, threaded holes are formed in the two sides of the reinforcing rod (301), and positioning nuts (302) are screwed into the threaded holes.

2. A water pump spindle having a high efficiency seal assembly as defined in claim 1 wherein: The surface of the reinforcing rod (301) is provided with sealing gaskets (6) on both sides, and the sealing gaskets (6) are mounted on one side of the positioning nut (502).

3. A water pump spindle with high efficiency sealing arrangement as claimed in claim 1 wherein: The surface of the dynamic ring (4) is rotatably connected with a static ring (7), and the surface of the static ring (7) is provided with a sealing cover (8).

4. A water pump spindle having a high efficiency seal assembly as defined in claim 3 wherein: The inner wall of the static ring (7) is provided with two positioning grooves, and the positioning grooves are mounted on the surface of the sealing ring (501).

5. A water pump spindle having a high efficiency seal assembly as defined in claim 3 wherein: The surface of the sealing cover (8) is provided with an oil inlet (9), and the surface of the oil inlet (9) is threadedly connected with a sealing cover (10).

6. A water pump spindle having a high efficiency seal assembly as defined in claim 1 wherein: The end of the water pump main shaft body (1) is fixedly connected with a runner (11), and a plurality of fan blades (12) are mounted in the runner (11).

7. A water pump spindle having a high efficiency seal assembly as defined in claim 1 wherein: The right end of the water pump main shaft body (1) is fixedly connected with a flange connecting piece (13), and a plurality of positioning holes are formed in the surface of the flange connecting piece (13).

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