CN211875067U - Oil seal structure for main shaft of speed reducer - Google Patents

Abstract

The utility model relates to a speed reducer is oil blanket structure for main shaft. The outer end face of the convex ring platform is provided with a pressing plate mounting hole for mounting a pressing plate, the diameter of an inner hole of the convex ring platform is larger than that of a main shaft of the speed reducer, and the inner hole of the convex ring platform completely covers the outside of a scratch at an oil seal of the main shaft of the speed reducer. The oil leakage prevention device has the advantages of simple structure, reasonable design, less time consumption, low labor intensity, low cost and capability of effectively preventing oil leakage.

Description

Oil seal structure for main shaft of speed reducer

Technical Field

The utility model belongs to the technical field of the oil blanket structure, concretely relates to oil blanket structure for reduction gear main shaft.

Background

Along with the continuous development and progress of chemical equipment technology, the service life of related equipment is continuously prolonged, the oil leakage phenomenon is easy to occur at the end cover of the speed reducer after the speed reducer serving as one of basic equipment is used for a long time, and the oil leakage phenomenon is not only not in line with the safety production standard of enterprises but also easily causes the problems of safety and environmental protection.

The technical means that the oil seal is replaced to achieve the purposes of sealing and preventing leakage is generally adopted when the oil leakage phenomenon occurs, but the oil leakage phenomenon cannot be solved after the oil seal is replaced in the actual production process, through multi-aspect analysis and verification, scratches are prone to occurring on a main shaft of the oil seal in the process of long-term use of the speed reducer, and the scratches cannot be sealed by the existing oil seal structure, so that the problem of oil leakage cannot be solved after new oil seal is replaced is caused. If the oil leakage defect under the condition is thoroughly solved, only the form of replacing the main shaft of the speed reducer can be adopted, but the main shaft replacement is time-consuming, high in labor intensity and high in cost, the whole equipment is required to be stopped for a long time for replacement, and the production of enterprises is seriously delayed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the defect among the prior art, and provide a simple structure, reasonable in design, consuming time few, low in labor strength, with low costs and can effectively prevent the speed reducer main shaft oil seal structure of oil leak.

The purpose of the utility model is realized like this: the outer end face of the convex ring platform is provided with a pressing plate mounting hole for mounting a pressing plate, the diameter of an inner hole of the convex ring platform is larger than that of a main shaft of the speed reducer, and the inner hole of the convex ring platform completely covers the outside of a scratch at an oil seal of the main shaft of the speed reducer.

Preferably, the inner hole of the convex ring platform extends to the inner part of the through cover, and the depth of the inner hole of the convex ring platform is not less than 30 mm.

Preferably, a wide sealing unit is arranged in the inner hole of the convex ring platform.

Preferably, the wide sealing unit is two oil seals.

Preferably, the wide sealing unit is a packing.

Preferably, the inner side of the wide sealing unit is provided with an oil seal, and the outer side of the oil seal is provided with a packing.

Preferably, the periphery of the outer side transparent cover is respectively provided with two bolt holes used for being connected with a speed reducer.

Preferably, at least one oil return groove is formed in the lower portion of the inner end face of the outer side transparent cover of the sealing strip groove.

Preferably, the number of the oil return grooves is two, and the two oil return grooves are respectively arranged on two sides of the lower part of the inner end face of the outer transparent cover.

Preferably, the upper part of the oil return groove is arranged on the outer side of the sealing strip groove, the oil return groove is radially arranged on the inner end face of the outer transparent cover, and the lower part of the oil return groove is arranged between the two bolt holes.

The utility model has the advantages of simple structure, reasonable in design, consuming time few, low in labor strength, with low costs and can effectively prevent the oil leak.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the inner end face of the transparent cover of the present invention.

Fig. 3 is a schematic structural diagram of the pressing plate of the present invention.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings, in which like reference numerals refer to like parts in the drawings. For the sake of simplicity, only the parts related to the utility model are schematically shown in the drawings, and they do not represent the actual structure as a product.

As shown in fig. 1, 2, 3, the utility model relates to an oil seal structure for speed reducer main shaft, this oil seal structure includes that the suit is at the outer circumference of speed reducer main shaft and the transparent cover 1 that links to each other with the speed reducer outer wall, the inboard of the interior terminal surface of transparent cover 1 is equipped with sealed strip groove 2, the outer terminal surface middle part of transparent cover 1 is equipped with and passes through the bulge loop platform 3 of 1 structure as an organic whole of cover, the outer terminal surface of bulge loop platform 3 is equipped with the clamp plate mounting hole 4 that is used for mounting plate 5, the hole diameter of bulge loop platform 3 is greater than the diameter of speed reducer main shaft, the hole of bulge loop platform 3 covers the mar outside in speed reducer main shaft oil blanket department. The scratch at the main shaft oil seal of the speed reducer is mainly produced in the process of normally disassembling the transparent cover 1 or replacing the oil seal, the utility model adopts a double-layer sealing form which comprises a sealing strip arranged in a sealing strip groove 2 and a wide sealing unit 8 arranged in the inner hole of a convex ring platform 3, and the scratch on the main shaft of the speed reducer can be effectively prevented from leaking oil by the matching of the double-layer sealing; cover 1 and bulge loop platform 3 structure as an organic whole thoroughly, this integrated structure can make the more effectual cooperation of double-deck sealing to reach better sealed effect.

Further, the inner hole of the convex ring platform 3 extends to the inside of the transparent cover 1, and the depth of the inner hole of the convex ring platform 3 is not less than 30 mm. Scratches of a main shaft of the speed reducer generally appear at the left and right positions of the original oil seal, so that the original oil seal cannot effectively seal the speed reducer; the utility model discloses an increase the mode of the 3 hole degree of depth of bulge loop platform, with the mar control of speed reducer main shaft in the degree of depth of 3 holes of bulge loop platform to seal it in order to reach the purpose that prevents the oil leak under the prerequisite of not changing the main shaft.

Further, a wide sealing unit 8 is arranged in an inner hole of the convex ring platform 3. The wide sealing unit 8 is arranged between the inner hole wall of the convex ring platform 3 and the main shaft of the speed reducer and is pressed by the pressing plate 5 on the outer side, so that the purpose of effectively preventing oil leakage is achieved.

Further, the wide sealing unit 8 is two oil seals. The wide sealing unit 8 is a packing. The inner side of the wide sealing unit 8 is provided with an oil seal, and the outer side of the oil seal is provided with a packing. The utility model provides a three kinds of wide seal unit 8's the scheme that sets up can adopt the mode that two oil blanket, packing and oil blanket and packing combine, and it needs to notice the utility model discloses a wide seal unit 8 is not limited to above-mentioned form, can also include the inboard packing that is, and the outside of packing is forms such as oil blanket. The oil leakage can be effectively prevented by the sealing of the wide sealing unit 8, and the adopted means mainly comprises the following two points: 1. the width of the wide sealing unit 8 is at least 30mm, and the leakage of thin oil can be effectively prevented by a long sealing stroke; 2. the inboard sealed can block most thin oil and take place to leak in the wide sealed unit 8, and when small part of thin oil passed inboard sealed through the mar, the outside was sealed can realize effectually blockking to the realization is to the sealed of thin oil, reaches the purpose that prevents the oil leak.

Furthermore, two bolt holes 6 used for being connected with a speed reducer are respectively arranged on the periphery of the outer side transparent cover 1. The outer side transparent cover 1 is connected with the outer wall of the speed reducer through a bolt hole 6.

Furthermore, at least one oil return groove 7 is arranged on the lower part of the inner end face of the outer side transparent cover 1 of the sealing strip groove 2. The oil return groove 7 is arranged to enable the thin oil splashed when the speed reducer operates to smoothly flow back to the inner bottom of the speed reducer through the blocking of the sealing strip in the sealing strip groove 2.

Furthermore, the number of the oil return grooves 7 is two, and the two oil return grooves are respectively arranged on two sides of the lower part of the inner end face of the outer transparent cover 1. In order to improve the backflow speed of the thin oil and avoid pressure caused by excessive sealing of the amount of the thin oil passing through the inner end face of the cover 1 on the outer side, two oil return grooves 7 are arranged to accelerate backflow of the thin oil.

Furthermore, the upper part of the oil return groove 7 is arranged on the outer side of the sealing strip groove 2, the oil return groove 7 is radially arranged on the inner end face of the outer transparent cover 1, and the lower part of the oil return groove 7 is arranged between the two bolt holes 6. Through the arrangement, thin oil can quickly enter the inner lower part of the speed reducer.

When the utility model is used, after the speed reducer is used for a long time and scratches appear, the oil seal structure of the utility model which is matched with the speed reducer needs to be changed, firstly, the matched sealing strip is arranged in the sealing strip groove 2, the transparent cover 1 is fixed outside the speed reducer through the bolt, and the bottom of the oil return groove 7 is arranged at the bottom of the speed reducer; secondly, a wide sealing unit 8 is filled between the inner hole of the convex ring platform 3 and the main shaft of the speed reducer, so that the wide sealing unit 8 completely covers scratches at the oil seal of the main shaft of the speed reducer to achieve the purposes of effectively sealing the oil seal and preventing oil leakage, and finally the outer end face of the convex ring platform 3 is installed through a pressing plate 5.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected," "connecting," and the like are to be construed broadly, and may be, for example, fixedly connected, integrally connected, or detachably connected; or communication between the interior of the two elements; they may be directly connected or indirectly connected through an intermediate, and those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific situation. The above examples are only specific illustrations of feasible embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments, modifications and alterations without departing from the technical spirit of the present invention are intended to be included in the scope of the present invention.

Claims (10)

1. The utility model provides a speed reducer is oil blanket structure for main shaft, a serial communication port, this oil blanket structure is including the cover (1) that passes through that the suit is at the outer circumference of speed reducer main shaft and links to each other with the speed reducer outer wall, the inboard of passing through the interior terminal surface of cover (1) is equipped with sealing strip groove (2), the outer terminal surface middle part of passing through cover (1) is equipped with and passes through flange platform (3) of cover (1) structure as an organic whole, the outer terminal surface of flange platform (3) is equipped with clamp plate mounting hole (4) that are used for installation clamp plate (5), the hole diameter of flange platform (3) is greater than the diameter of speed reducer main shaft, the hole of flange platform (3) covers the mar of speed reducer main.

2. The oil seal structure for the main shaft of the speed reducer according to claim 1, wherein the inner hole of the cam boss (3) extends to the inside of the through cover (1), and the depth of the inner hole of the cam boss (3) is not less than 30 mm.

3. The oil seal structure for the main shaft of the reduction gear according to claim 1, wherein a wide seal unit (8) is provided in an inner bore of the boss (3).

4. The oil seal structure for the main shaft of the reduction gear according to claim 3, wherein the wide seal unit (8) is two oil seals.

5. The oil seal structure for the main shaft of the speed reducer according to claim 3, wherein the wide seal unit (8) is a packing.

6. The oil seal structure for the main shaft of the speed reducer according to claim 3, wherein the inner side of the wide sealing unit (8) is an oil seal, and the outer side of the oil seal is a packing.

7. The oil seal structure for the main shaft of the speed reducer according to claim 1, wherein two bolt holes (6) for connecting with the speed reducer are respectively formed in the periphery of the outer side of the transparent cover (1).

8. The oil seal structure for the main shaft of the speed reducer according to claim 1, wherein at least one oil return groove (7) is formed in the lower portion of the inner end face of the outer transparent cover (1) of the seal strip groove (2).

9. The oil seal structure for the main shaft of the reduction gear according to claim 8, wherein the number of the oil return grooves (7) is two, and the two oil return grooves are respectively arranged on two sides of the lower portion of the inner end surface of the outer transparent cover (1).

10. The oil seal structure for the main shaft of the speed reducer according to claim 8 or 9, wherein the upper part of the oil return groove (7) is arranged outside the seal strip groove (2), the oil return groove (7) is radially arranged on the inner end surface of the outer transparent cover (1), and the lower part of the oil return groove is arranged between the two bolt holes (6).

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