CN211875103U

CN211875103U - Oil seal easy to test sealing degree

Info

Publication number: CN211875103U
Application number: CN202020226168.5U
Authority: CN
Inventors: 顾昕辉
Original assignee: Wuxi Songbao Rubber & Plastic Co ltd
Current assignee: Wuxi Songbao Rubber & Plastic Co ltd
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2020-11-06
Anticipated expiration: 2030-02-28

Abstract

The utility model discloses an oil blanket of easily testing leakproofness, including oil blanket body, sealing washer, fixed plate and coil, the screw connection has the skeleton in the oil blanket body, and the screw connection has the sealing washer on the oil blanket body, connecting rod card is originally internal at the oil blanket, and this internal screw connection of oil blanket has the self-tightening spring, the bottom welding of dead lever has the circular gear of second, and the meshing is connected with third circular gear on the circular gear of second, third circular gear upper shaft coupling has the coil, and the winding has the connecting wire on the coil to the bottom bolt of connecting wire is in the self-tightening spring. This oil blanket of easily testing sealing degree is provided with the coil, through the reverse rotation dead lever, under the effect of second circular gear, and third circular gear can drive the coil and rotate, and then can tighten up work to the self-tightening spring through the connecting wire, can effectively strengthen the use leakproofness of oil blanket, has increased the safety in utilization of oil blanket.

Description

Oil seal easy to test sealing degree

Technical Field

The utility model relates to an oil blanket technical field specifically is an oil blanket of easily testing the leakproofness.

Background

The oil seal generally refers to a framework oil seal, the oil seal generally has the effect of isolating parts needing lubrication in a transmission part from a force-exerting part so as not to allow lubricating oil to leak, the framework plays a role of reinforcement just like a steel bar in a concrete member, the oil seal can keep shape and tension, and in the production process of the oil seal, a detection device is required to be used for detecting the sealing degree of the oil seal.

Most of the oil seals have the following problems:

the inner diameter of the framework oil seal in a free state is smaller than the shaft diameter, namely a certain interference magnitude is provided, and when the sealing degree of the oil seal is detected, the oil seal is inconvenient to place on a detection shaft and is difficult to detect;

secondly, in the use of oil blanket, the long-time use of self-tightening spring can lead to elasticity to reduce, can not guarantee the use leakproofness of oil blanket.

We have proposed an oil seal which is easy to test for tightness in order to solve the problems set forth above.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an oil blanket of easily testing the leakproofness to solve the inconvenient placing of oil blanket on the existing market that above-mentioned background art provided and detect epaxially, and the problem can not guarantee the use leakproofness of oil blanket.

In order to achieve the above object, the utility model provides a following technical scheme: an oil seal easy for testing the sealing degree comprises an oil seal body, a sealing ring, a fixing plate and a coil, wherein a framework is connected with a screw in the oil seal body, the sealing ring is connected with a screw in the oil seal body through a screw, a fixing rod is connected in the sealing ring in a shaft, a first circular gear is welded on the fixing rod, an internal gear is connected on the first circular gear in a meshed mode and is arranged on the oil seal body, the fixing plate is welded on the internal gear, a limiting groove is formed in the fixing plate, the limiting groove is clamped and connected with the fixing block, a connecting rod is connected on the fixing block through a screw, the connecting rod is clamped and connected in the oil seal body, a self-tightening spring is connected with the screw in the oil seal body, the bottom end of the connecting rod is welded on the self-tightening spring, a second circular gear is welded at the bottom, the third circular gear is in shaft connection with a coil, a connecting wire is wound on the coil, the bottom end of the connecting wire is bolted in the self-tightening spring, and a dust lip is fixed at the side end of the oil seal body.

Preferably, the diameter of the sealing ring is larger than that of the fixing rod, the top end face of the fixing rod is flush with the top end face of the oil seal body, and the fixing rod is fixed at the central part of the sealing ring.

Preferably, the inner gear is connected with the oil seal body through a bearing, the inner diameter of the inner gear is larger than that of the oil seal body, and the oil seal body and the dust lip are of an integrated structure.

Preferably, the limiting grooves are distributed on the fixing plate at equal angles, the width of the inner space of each limiting groove is equal to the diameter of the fixing block, and the limiting grooves are inclined.

Preferably, be connected for inlaying between self-tightening spring and the oil blanket body, and self-tightening spring's internal diameter is greater than the inner space diameter of oil blanket body.

Preferably, the third circular gear and the coil are located on the same central shaft, the end face of the coil and the central line of the self-tightening spring are located on the same horizontal plane, and the third circular gear is connected with the oil seal body through a shaft.

Compared with the prior art, the beneficial effects of the utility model are that: the oil seal is easy to test the tightness;

(1) the oil seal is provided with a connecting rod, a fixing rod on a sealing ring can be rotated in a forward direction, an inner gear can be driven to rotate under the action of a first circular gear, and then the fixing plate can be driven to rotate;

(2) this oil blanket is provided with the coil, through the reverse rotation dead lever, under the effect of second circular gear, third circular gear can drive the coil and rotate, and then can tighten up work to the self-tightening spring through the connecting wire, can effectively strengthen the use leakproofness of oil blanket, has increased the safety in utilization of oil blanket.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure at A in FIG. 1 according to the present invention;

FIG. 3 is a schematic top view of the connecting rod of the present invention;

fig. 4 is a schematic view of the top view structure of the self-tightening spring of the present invention.

In the figure: 1. an oil seal body; 2. a framework; 3. fixing the rod; 4. a seal ring; 5. a first circular gear; 6. an internal gear; 7. a fixing plate; 8. a limiting groove; 9. a fixed block; 10. a connecting rod; 11. a self-tightening spring; 12. a second circular gear; 13. a third circular gear; 14. a coil; 15. a connecting wire; 16. and (4) dust lip prevention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: an oil seal easy for testing the sealing degree comprises an oil seal body 1, a framework 2, a fixed rod 3, a sealing ring 4, a first circular gear 5, an internal gear 6, a fixed plate 7, a limiting groove 8, a fixed block 9, a connecting rod 10, a self-tightening spring 11, a second circular gear 12, a third circular gear 13, a coil 14, a connecting wire 15 and a dustproof lip 16, wherein the framework 2 is connected with an internal screw in the oil seal body 1, the sealing ring 4 is connected with the oil seal body 1 through a screw, the fixed rod 3 is connected with an inner shaft of the sealing ring 4, the first circular gear 5 is welded on the fixed rod 3, the internal gear 6 is connected with the first circular gear 5 in a meshing way, the internal gear 6 is arranged on the oil seal body 1, the fixed plate 7 is welded on the internal gear 6, the limiting groove 8 is arranged in the fixed plate 7, the limiting groove 8 is clamped and connected, connecting rod 10 card is with connecting in oil blanket body 1, and the screw connection has from tight spring 11 in the oil blanket body 1, and the bottom welding of connecting rod 10 is on from tight spring 11, the bottom welding of dead lever 3 has second circular gear 12, and the meshing is connected with third circular gear 13 on the second circular gear 12, third circular gear 13 upper shaft coupling has coil 14, and the winding has connecting wire 15 on the coil 14, and the bottom bolt of connecting wire 15 is in from tight spring 11, the side of oil blanket body 1 is fixed with dustproof lip 16.

The diameter of sealing washer 4 is greater than the diameter of dead lever 3, and the top face of dead lever 3 and the top face parallel and level of oil blanket body 1 to dead lever 3 is fixed at the central point of sealing washer 4, can guarantee that dead lever 3 carries out work on sealing washer 4, has increased the use high efficiency of oil blanket.

The bearing connection is adopted between the internal gear 6 and the oil seal body 1, the inner diameter of the internal gear 6 is larger than that of the oil seal body 1, and the oil seal body 1 and the dust lip 16 are of an integrated structure, so that the stability of the connection state between the oil seal body 1 and the dust lip 16 can be ensured, and the use safety of the oil seal is improved.

Angular distributions such as spacing groove 8 are on fixed plate 7, and the inner space width of spacing groove 8 equals with the diameter of fixed block 9 to spacing groove 8 is the slope form, can conveniently control fixed block 9 and carry out the work of sliding in spacing groove 8, has increased the use variety of oil blanket.

From being connected for inlaying between tight spring 11 and the oil blanket body 1, and from the internal diameter of tight spring 11 to be greater than the inner space diameter of oil blanket body 1, can effectively avoid from tight spring 11 to the harmful effects of oil blanket body 1.

The third circular gear 13 and the coil 14 are located on the same central shaft, the end face of the coil 14 and the central line of the self-tightening spring 11 are located on the same horizontal plane, and the third circular gear 13 and the oil seal body 1 are connected through a shaft, so that the coil 14 can be conveniently controlled to work on the third circular gear 13.

The working principle is as follows: before the oil seal easy to test the sealing degree is used, the overall condition of the device needs to be checked firstly to determine that the normal work can be carried out;

through forward rotation of the fixing rod 3 on the sealing ring 4, with reference to fig. 1-3, the inner gear 6 can be driven to rotate under the action of the first circular gear 5, so that the fixing plate 7 can be driven to rotate, under the action of the limiting groove 8, the fixing plate 7 can be driven to rotate to drive the fixing block 9 to move outwards at the same time, and then the self-tightening spring 11 is driven to move outwards through the connecting rod 10, so that the diameter of the inner space of the oil seal body 1 can be slightly increased, an oil seal can be easily and conveniently placed on the detection shaft, and the detection work of the sealing performance of the oil seal can be conveniently and quickly carried out;

through the dead lever 3 of the reverse rotation, combine fig. 1, fig. 2 and fig. 4, under the effect of second circular gear 12, third circular gear 13 can drive coil 14 and rotate, and then can tighten up work to self-tightening spring 11 through connecting wire 15, can effectively strengthen the use leakproofness of oil blanket, and in the use of dustproof lip 16, can effectively prevent the inside dust that gets into of oil blanket body 1, above be the course of operation of whole device, and the content that does not describe in detail in this description, for example sealing washer 4, self-tightening spring 11 and coil 14, all belong to the prior art that the professional skilled person in the art knows.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides an oil blanket of easy test leakproofness, includes oil blanket body (1), sealing washer (4), fixed plate (7) and coil (14), its characterized in that: the inner screw of the oil seal body (1) is connected with a framework (2), the oil seal body (1) is in screw connection with a sealing ring (4), the inner shaft of the sealing ring (4) is connected with a fixed rod (3), the fixed rod (3) is welded with a first circular gear (5), the first circular gear (5) is meshed with an inner gear (6), the inner gear (6) is arranged on the oil seal body (1), the inner gear (6) is welded with a fixed plate (7), a limit groove (8) is formed in the fixed plate (7), the limit groove (8) is clamped and connected with a fixed block (9), the fixed block (9) is in screw connection with a connecting rod (10), the connecting rod (10) is clamped and connected in the oil seal body (1), the inner screw of the oil seal body (1) is connected with a self-tightening spring (11), and the bottom end of the connecting rod (10) is welded on the self-tightening spring, the bottom welding of dead lever (3) has second circular gear (12), and the meshing is connected with third circular gear (13) on second circular gear (12), third circular gear (13) upper shaft connection has coil (14), and the winding has connecting wire (15) on coil (14) to the bottom bolt of connecting wire (15) is in from tight spring (11), the side of oil blanket body (1) is fixed with dust lip (16).

2. An oil seal easy to test tightness according to claim 1, characterized in that: the diameter of the sealing ring (4) is larger than that of the fixing rod (3), the top end face of the fixing rod (3) is flush with the top end face of the oil seal body (1), and the fixing rod (3) is fixed at the center of the sealing ring (4).

3. An oil seal easy to test tightness according to claim 1, characterized in that: the inner gear (6) is connected with the oil seal body (1) through a bearing, the inner diameter of the inner gear (6) is larger than that of the oil seal body (1), and the oil seal body (1) and the dust lip (16) are of an integrated structure.

4. An oil seal easy to test tightness according to claim 1, characterized in that: the limiting grooves (8) are distributed on the fixing plate (7) at equal angles, the width of the inner space of each limiting groove (8) is equal to the diameter of the corresponding fixing block (9), and the limiting grooves (8) are inclined.

5. An oil seal easy to test tightness according to claim 1, characterized in that: the self-tightening spring (11) is connected with the oil seal body (1) in an embedded mode, and the inner diameter of the self-tightening spring (11) is larger than the diameter of the inner space of the oil seal body (1).

6. An oil seal easy to test tightness according to claim 1, characterized in that: the third circular gear (13) and the coil (14) are located on the same central shaft, the end face of the coil (14) and the central line of the self-tightening spring (11) are located on the same horizontal plane, and the third circular gear (13) is connected with the oil seal body (1) through a shaft.