CN211901583U

CN211901583U - High-load transmission mechanical sealing device

Info

Publication number: CN211901583U
Application number: CN202020325260.7U
Authority: CN
Inventors: 明兴平; 杨宗迪; 吴波; 张霞
Original assignee: Zigong Chuanmi Environmental Protection Technology Co ltd
Current assignee: Zigong Chuanmi Environmental Protection Technology Co ltd
Priority date: 2020-03-16
Filing date: 2020-03-16
Publication date: 2020-11-10
Anticipated expiration: 2030-03-16

Abstract

The utility model relates to a mechanical seal technical field, concretely relates to high load transmission mechanical seal device, including axle sleeve and locking mechanism, establish solid fixed ring on the axle sleeve, be equipped with the conical surface on the axle sleeve outer wall, locking mechanism is including pressing ring and fastening screw, press the ring cover and establish on the conical surface, fastening screw connects press the ring with gu fixed ring. The utility model relates to a high load transmission machinery sealing device tightens the clamp ring through solid fixed ring, and the clamp ring is exerted the effect by the taut in-process counter shaft sleeve conical surface, produces along axle sleeve diameter direction's pressure, makes axle sleeve and transmission shaft hold tightly, has both kept traditional clamping mechanism simple to operate and has not damaged the advantage of transmission shaft, has still avoided phenomenons such as skidding, off normal to appear.

Description

High-load transmission mechanical sealing device

Technical Field

The utility model relates to a mechanical seal technical field, especially a high load transmission mechanical seal device.

Background

At present, the mechanical seal device of wide use in electric power industry, including transmission shaft and the cover establish the epaxial axle sleeve of transmission, be provided with the dynamic seal subassembly on the axle sleeve, still including be used for with equipment fixed connection's seal receptacle, be equipped with static seal subassembly on the seal receptacle, through dynamic seal subassembly and static seal subassembly butt between axle sleeve and the seal receptacle to form sealedly to the equipment inner chamber. The transmission shaft belongs to a moving part, and needs to be tightly held with the shaft sleeve for transmission when in work.

In summary, there is a need for a technical solution to solve the technical problem that the clamping mechanism of the shaft sleeve and the transmission shaft is prone to misalignment and slippage under the working conditions of unstable operation, large vibration, high torque requirement, and the like of the mechanical sealing device.

SUMMERY OF THE UTILITY MODEL

The invention of the utility model aims to: aiming at the technical problems that in the prior art, under the working conditions of unstable operation, large vibration, high torque force requirement and the like of a mechanical sealing device, a clamping mechanism of a shaft sleeve and a transmission shaft is easy to deviate and slip and the like, the high-load transmission mechanical sealing device is provided.

In order to realize the purpose, the utility model discloses a technical scheme be:

a high-load transmission mechanical sealing device comprises a shaft sleeve and a locking mechanism, wherein a fixing ring is arranged on the shaft sleeve, a conical surface is arranged on the outer wall of the shaft sleeve, the locking mechanism comprises a clamping ring and a fastening screw, the clamping ring is sleeved on the conical surface, and the fastening screw is connected with the clamping ring and the fixing ring.

The utility model relates to a high load transmission machinery sealing device, gu fixed ring passes through connecting screw fixed connection with the axle sleeve, clamp ring cover is established on the conical surface of axle sleeve outer wall, fastening screw passes clamp ring and is connected with solid fixed ring, in the fastening screw in-process of screwing, fastening screw drives and presss from both sides tight hoop side of solid fixed ring and removes tautly, the pulling force along axle sleeve axis direction is acted on the conical surface of axle sleeve outer wall, produces the component force along axle sleeve diameter direction, and then compresses tightly the axle sleeve to the transmission shaft, realize the transmission of holding tightly of axle sleeve and transmission shaft, relatively traditional clamping mechanism, the utility model discloses both kept simple to operate and the advantage of not damaging the transmission shaft, still avoided appearing the phenomenon of skidding.

As the utility model discloses a preferred scheme, gu be equipped with on the fixed ring with the screw hole of fastening screw adaptation, gu be equipped with on the clamp ring with the connecting hole of screw hole adaptation.

As the preferred proposal of the utility model, the clamping ring is provided with a limit groove communicated with the connecting hole.

As the preferred scheme of the utility model, be equipped with a plurality of on the clamp ring terminal surface the connecting hole, it is a plurality of the connecting hole is followed the circumference of axle sleeve is evenly arranged.

As the utility model discloses a preferred scheme, the screw hole with the connecting hole is followed the axis direction setting of axle sleeve.

As a preferable aspect of the present invention, one side of the clamping ring close to the shaft sleeve is provided as a fitting surface adapted to the tapered surface.

As the preferred scheme of the utility model, set up on the axle sleeve be equipped with a plurality of technology grooves on the inner wall of the one end of clamp ring.

As the preferred scheme of the utility model, set up on the axle sleeve the one end of pressing ring is equipped with a plurality of opening along axle sleeve axis direction.

As the utility model discloses a preferred scheme, a plurality of the opening is followed the circumference of axle sleeve is evenly arranged.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

the utility model relates to a high load transmission machinery sealing device tightens the clamp ring through solid fixed ring, and the clamp ring is exerted the effect by the taut in-process counter shaft sleeve conical surface, produces along axle sleeve diameter direction's pressure, makes axle sleeve and transmission shaft hold tightly, has both kept traditional clamping mechanism simple to operate and has not damaged the advantage of transmission shaft, has still avoided phenomenons such as skidding, off normal to appear.

Drawings

Fig. 1 is a schematic structural view of a high-load transmission mechanical sealing device of the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is a schematic structural view of the bushing of FIG. 1;

the labels in the figure are: 1-shaft sleeve, 11-conical surface, 12-technological groove, 13-opening, 2-fixing ring, 21-threaded hole, 3-locking mechanism, 31-clamping ring, 311-connecting hole, 312-limiting groove, 32-fastening screw, 4-connecting screw and 5-transmission shaft.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Example 1

As shown in fig. 1-3, the utility model relates to a high load transmission mechanical seal device, including axle sleeve 1 and locking mechanism 3, establish solid fixed ring 2 on the axle sleeve 1, be equipped with conical surface 11 on the axle sleeve 1 outer wall, locking mechanism 3 includes clamp ring 31 and fastening screw 32, the clamp ring 31 cover is established on the conical surface 11, fastening screw 32 connects clamp ring 31 with gu fixed ring 2, wherein the tip at axle sleeve 1 is set up to conical surface 11, like this after 11 atress on the conical surface, axle sleeve 1 laminates with transmission shaft 5 more easily, wherein gu fixed ring 2 passes through connecting screw 4 and axle sleeve 1 fixed connection.

Specifically, the fixing ring 2 is provided with a threaded hole 21 adapted to the fastening screw 32, the clamping ring 31 is provided with a connecting hole 311 adapted to the threaded hole 21, the fastening screw 32 passes through the connecting hole 311 of the clamping ring 31 to be connected to the threaded hole 21 of the fixing ring 2, so that the clamping ring 31 moves toward the fixing ring 2, and the clamping ring 31 presses the shaft sleeve 1 on the conical surface 11. Furthermore, the clamping ring 31 is provided with a limiting groove 312 communicated with the connecting hole 31, so that the fastening screw 32 can be embedded into the limiting groove 312, and the structure is more compact.

The threaded hole 21 and the connection hole 311 are arranged along the axial direction of the sleeve 1, that is, the axial direction of the threaded hole 21 coincides with or is parallel to the axial direction of the sleeve 1, so that the fastening screw 32 can apply pressure to the clamp ring 31 along the axial direction of the sleeve 1.

Furthermore, the end face of the clamping ring 31 is provided with a plurality of connecting holes 311, the connecting holes 311 are uniformly arranged along the circumferential direction of the shaft sleeve 1, and each connecting hole 311 is provided with one fastening screw 32, so that the clamping ring 31 can be subjected to sufficient and uniform acting force, and the stability of the locking mechanism 3 is improved.

Furthermore, one side of the clamping ring 31 close to the shaft sleeve 1 is provided with a matching surface matched with the conical surface 11, so that the clamping ring 31 is more conveniently installed on the conical surface 11, and meanwhile, in the tightening process of the fastening screw 32, the movement of the clamping ring 31 on the cones and 11 is more stable, and the safety performance is improved.

Furthermore, the inner wall of the end, provided with the clamping ring 31, of the shaft sleeve 1 is provided with a plurality of process grooves 12, so that the contact area between the shaft sleeve 1 and the transmission shaft 5 is reduced, the shaft sleeve 1 is more easily held with the transmission shaft 5, and the reliability of sealed transmission is improved.

Furthermore, one end of the shaft sleeve 1, which is provided with the clamping ring 31, is provided with a plurality of openings 13 along the axial direction of the shaft sleeve 1, so that the shaft sleeve 1 is easier to deform after the outer wall of the shaft sleeve 1 is stressed, and the diameter of the shaft sleeve 1 is reduced along with the reduction of the openings 13, thereby being convenient for being tightly held with the transmission shaft 5. Furthermore, the plurality of openings 13 are uniformly arranged along the circumferential direction of the shaft sleeve 1, so that the shaft sleeve 1 deforms more uniformly, and the shaft sleeve 1 is contacted with the transmission shaft 5 more tightly.

To sum up, the utility model relates to a high load transmission machinery sealing device, gu fixed ring 2 passes through 4 fixed connection of connecting screw with axle sleeve 1, clamp ring 31 cover is established on the conical surface 11 of 1 outer wall of axle sleeve, fastening screw 32 passes clamp ring 31 and is connected with solid fixed ring 2, screw the in-process at fastening screw 32, fastening screw 32 drives clamp ring 31 and moves taut to solid fixed ring 2 side, the pulling force along 1 axis direction of axle sleeve acts on the conical surface 11 of 1 outer wall of axle sleeve, produce the component force along 1 diameter direction of axle sleeve, and then compress tightly axle sleeve 1 to transmission shaft 5, realize

axle sleeve

1 and 5 hold tight transmission of transmission shaft, traditional clamping mechanism relatively, the utility model discloses both remain simple to operate and do not damage the advantage of transmission shaft, still avoided appearing the phenomenon of skidding.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The high-load transmission mechanical sealing device is characterized by comprising a shaft sleeve (1) and a locking mechanism (3), wherein a fixing ring (2) is arranged on the shaft sleeve (1), a conical surface (11) is arranged on the outer wall of the shaft sleeve (1), the locking mechanism (3) comprises a clamping ring (31) and a fastening screw (32), the clamping ring (31) is sleeved on the conical surface (11), and the fastening screw (32) is connected with the clamping ring (31) and the fixing ring (2).

2. High load transmission mechanical seal according to claim 1, characterized in that the fixing ring (2) is provided with a threaded hole (21) adapted to the fastening screw (32), and the clamping ring (31) is provided with a connection hole (311) adapted to the threaded hole (21).

3. A high load transmission mechanical seal according to claim 2, wherein said clamp ring (31) is provided with a limit groove (312) communicating with said connection hole (311).

4. A high load transmission mechanical seal device according to claim 2, wherein a plurality of said connecting holes (311) are provided on the end face of said clamp ring (31), and a plurality of said connecting holes (311) are uniformly arranged along the circumference of said shaft sleeve (1).

5. A high load transmission mechanical seal according to claim 2, wherein said threaded hole (21) and said attachment hole (311) are provided along an axial direction of said sleeve (1).

6. A high load transmission mechanical seal according to claim 1, wherein a side of the clamp ring (31) near the shaft sleeve (1) is provided as a mating surface adapted to the tapered surface (11).

7. A high load transmission mechanical seal device according to any one of claims 1 to 6, wherein the inner wall of the end of the shaft sleeve (1) where the clamping ring (31) is arranged is provided with a plurality of process grooves (12).

8. A high load transmission mechanical seal according to any one of claims 1-6, characterized in that the end of the sleeve (1) where the clamp ring is located is provided with openings (13) in the axial direction of the sleeve (1).

9. A high load transmission mechanical seal according to claim 8, characterized in that several of said openings (13) are arranged evenly in the circumferential direction of said sleeve (1).