CN214743231U

CN214743231U - Sealing device for oil leakage of reduction gearbox of oil production plant

Info

Publication number: CN214743231U
Application number: CN202120676873.XU
Authority: CN
Inventors: 李海涛; 杨建光; 宗先路
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2021-11-16
Anticipated expiration: 2031-04-02

Abstract

The utility model discloses a sealing device for oil recovery factory reducing gear box oil leak relates to the sealing device field, and single, the leakproofness is relatively poor to the sealing device of current oil recovery factory reducing gear box oil leak, and inconvenient timely dismantlement maintenance change's problem simultaneously now proposes following scheme, and it includes the reducing gear box, the leading flank fixedly connected with sleeve of reducing gear box, telescopic leading flank fixedly connected with urceolus, sleeve internal rotation cover is equipped with the output shaft, reducing gear box front side inner wall fixedly connected with drum, the front side in the drum is provided with the ring, the rear end of output shaft passes the drum and extends in the reducing gear box, the trailing flank of ring and the equal fixedly connected with guide cylinder of the rear side inner wall of drum, preceding, back both sides fixedly connected with spring between the guide cylinder. The device has the characteristics of greatly improving the sealing performance of the output shaft of the reduction gearbox through multiple sealing, and being convenient to detach and replace.

Description

Sealing device for oil leakage of reduction gearbox of oil production plant

Technical Field

The utility model relates to a sealing device field especially relates to a sealing device that is used for oil recovery factory reducing gear box oil leak.

Background

The reduction gearbox is also called as a speed reducer or a speed reducer, works according to the principle that a prime motor is connected with the reduction gearbox, and the reduction gearbox is connected with a working machine, and is power transmission equipment. The gearbox can be divided into an industrial gearbox and a steam gearbox, the industrial gearbox can be divided into a worm gear gearbox, a worm gear gearbox, a planetary gearbox and the like, and the gearbox is mainly divided into a single stage, a second stage and a multi-stage according to the transmission stage number. The latter is generally used for four-wheel drive vehicles, so that the insufficient turning and the unexpected turning caused by the same rotation speed of four tires during turning can be avoided.

In industrial application, at present, a reduction gearbox is commonly used for an oil field beam pumping unit, and is one of the most important devices in a pumping unit system. The function is to change the high-speed rotation of the motor into the low-speed rotation of the output shaft through the deceleration of the two poles of the three shafts, thereby driving the whole pumping unit system to operate. The reduction gearbox is lubricated by adopting an oil bath, and the gears are lubricated by splashing from the oil-immersed lubrication bearing of the oil bath, and the reduction gearbox is characterized by large bearing load and is suitable for long-term field operation, but oil leakage of each part can be caused due to the influence of various reasons, so that the normal work of the reduction gearbox is influenced, and the daily management and maintenance workload is increased.

The main hazards of oil leakage are 1, resulting in waste of lubricating oil. 2. Polluting organism and surrounding environment. 3. The serious oil leakage can accelerate the adhesion and the peeling of the gear due to the oil shortage, the gear damage can be caused due to the fact that the gear in the reduction gearbox cannot be normally lubricated, and even the mechanical accident can be caused seriously. The existing sealing device is generally sealed through a single sealing structure, the sealing performance is poor, and the existing sealing device is inconvenient to repair and replace in time after being damaged. Therefore, the sealing device for the oil leakage of the reduction box of the oil production plant is provided.

SUMMERY OF THE UTILITY MODEL

The utility model provides a sealing device for oil production factory reducing gear box oil leak has solved the single, the leakproofness of sealing device of current oil production factory reducing gear box oil leak relatively poor, the inconvenient timely problem of dismantling the maintenance change simultaneously.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a sealing device for oil leakage of a reduction gearbox of an oil production plant comprises the reduction gearbox, wherein a sleeve is fixedly connected to the front side face of the reduction gearbox, an outer cylinder is fixedly connected to the front end of the sleeve, an output shaft is rotatably sleeved in the sleeve, a cylinder is fixedly connected to the inner wall of the front side of the reduction gearbox, a circular ring is arranged on the front side in the cylinder, the rear end of the output shaft penetrates through the cylinder and extends into the reduction gearbox, guide cylinders are fixedly connected to the rear side face of the circular ring and the inner wall of the rear side of the cylinder, a spring is fixedly connected between the guide cylinders on the front side and the rear side, an annular rubber cylinder is fixedly connected between the rear side face of the circular ring and the inner wall of the cylinder, limiting rods are fixedly connected to the front side face array of the circular ring, the front end of each limiting rod penetrates through the front side face of the reduction gearbox and extends to the front side of the reduction gearbox, and a rotating cylinder is sleeved on the outer side face of the sleeve in a threaded manner, the front side surface array of the rotary drum is fixedly connected with mounting seats, the front side of each mounting seat is respectively provided with an upper semicircular ring and a lower semicircular ring, each semicircular ring is fixedly connected with the mounting seat on one side of the semicircular ring through a bolt, a sealing ring is arranged in the outer barrel, and one side of each semicircular ring, which is close to the sealing ring, is fixedly connected with an extrusion block in an array mode.

Preferably, the rear end of the output shaft and the rear side surface of the cylinder are sleeved in a sealing and rotating mode, and the front end of the output shaft extends to the front side of the outer cylinder.

Preferably, the circular ring is arranged in the cylinder in a sliding mode and sleeved on the surface of the output shaft in the cylinder in a sliding mode, and the guide cylinders on the front side and the rear side are sleeved with each other.

Preferably, the front end of each limiting rod is abutted against the rear side face of the rotary cylinder, and the surface of the limiting rod and the front side face of the reduction gearbox are in sliding seal mutually.

Preferably, the semicircular rings on the upper side and the lower side are symmetrically arranged and fixedly connected with the mounting seats on one side of each semicircular ring through bolts, and the rear side surface of each semicircular ring is fixedly connected with the extrusion blocks in an array mode.

Preferably, the sealing ring is slidably disposed in the outer cylinder and is respectively sleeved on the front end face of the sleeve and the surface of the output shaft, and the extrusion blocks are respectively attached to the front side face of the sealing ring in a sliding manner.

Compared with the prior art, the beneficial effects of the utility model are that:

through the reduction box, the sleeve, the outer cylinder, the output shaft, the cylinder, the ring, the annular rubber cylinder, the guide cylinder, the spring, the gag lever post, the rotary cylinder, the mount pad, the semicircle ring, the sealing washer, make this device can drive it to move backward on the sleeve surface through rotating the rotary cylinder when using, and then can promote the gag lever post to drive the ring to move backward in the cylinder, and then can extrude the annular rubber cylinder when compressing the spring, and then can carry out the primary seal to the surface of the output shaft through the annular rubber cylinder, simultaneously along with the backward movement of the rotary cylinder, will stimulate the mount pad and the semicircle ring to move backward, make the extrusion piece of semicircle ring trailing flank fixed connection can conflict with the front side of sealing washer respectively, make the sealing washer can move backward and carry out the inseparable laminating seal with the telescopic front end face and the surface of the output shaft, and then can carry out the sealing of front and back both sides, simultaneously through the rotational seal of output shaft with sleeve and cylinder trailing flank, realize multiple sealed great improvement leakproofness, can carry out high-efficient timely sealing to the great sealing washer of wearing and tearing through dismantling the semicircle ring simultaneously when damaging.

Make this device have through the great leakproofness that has improved the reducing gear box output shaft of multiple sealed, characteristics that dismantle the change simultaneously can be convenient.

Drawings

Fig. 1 is the utility model discloses a section view of a side view structure of a sealing device for oil production plant reducing gear box oil leak.

Fig. 2 is a cross-sectional view of the rear view structure of the sealing device for oil leakage of the reduction gearbox of the oil production plant of the utility model.

Fig. 3 is a front view of the sealing device for oil leakage of the reduction gearbox of the oil production plant of the utility model.

Reference numbers in the figures: the device comprises a reduction box 1, a sleeve 2, an outer cylinder 3, an output shaft 4, a cylinder 5, a circular ring 6, an annular rubber cylinder 7, a guide cylinder 8, a spring 9, a limiting rod 10, a rotating cylinder 11, a mounting seat 12, a semicircular ring 13 and a sealing ring 14.

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.

Referring to fig. 1-3, a sealing device for oil leakage of a reduction gearbox of an oil production plant comprises a reduction gearbox 1, a sleeve 2 is fixedly connected to the front side surface of the reduction gearbox 1, an outer cylinder 3 is fixedly connected to the front end of the sleeve 2, an output shaft 4 is rotatably sleeved in the sleeve 2, a cylinder 5 is fixedly connected to the inner wall of the front side of the reduction gearbox 1, a circular ring 6 is arranged on the front side of the cylinder 5, the rear end of the output shaft 4 passes through the cylinder 5 and extends into the reduction gearbox 1, guide cylinders 8 are fixedly connected to the rear side surface of the circular ring 6 and the inner wall of the rear side of the cylinder 5, a spring 9 is fixedly connected between the guide cylinders 8 on the front and rear sides, an annular rubber cylinder 7 is fixedly connected between the rear side surface of the circular ring 6 and the inner wall of the cylinder 5, stop rods 10 are fixedly connected to the front side surface array of the circular ring 6, and the front end of each stop rod 10 passes through the front side surface of the reduction gearbox 1 and extends into the front side of the reduction gearbox 1, the lateral surface screw thread cover of sleeve 2 is equipped with rotary drum 11, and the leading flank array fixedly connected with mount pad 12 of rotary drum 11, the front side of each mount pad 12 are provided with two upper and lower semicircle rings 13 respectively, and every semicircle ring 13 all is provided with sealing washer 14 through fixed connection between the mount pad 12 of bolt and one side separately, the urceolus 3, and every semicircle ring 13 is close to the equal array fixedly connected with extrusion piece in one side of sealing washer 14.

In the embodiment, the rear end of the output shaft 4 and the rear side surface of the cylinder 5 are sleeved in a sealing and rotating manner, the front end of the output shaft 4 extends to the front side of the outer cylinder 3, the circular ring 6 is arranged in the cylinder 5 in a sliding manner and sleeved on the surface of the output shaft 4 in the cylinder 5, the guide cylinders 8 at the front side and the rear side are sleeved with each other, the front end of each limiting rod 10 is abutted against the rear side surface of the rotary cylinder 11, the surface of the limiting rod 10 is sealed with the front side surface of the reduction gearbox 1 in a sliding manner, the semicircular rings 13 on the lower two sides are symmetrically arranged and are fixedly connected with the mounting seat 12 on one side of each other through bolts, the rear side face of each semicircular ring 13 is fixedly connected with extrusion blocks in an array mode, the sealing rings 14 are arranged in the outer barrel 3 in a sliding mode and are sleeved with the front end face of the sleeve 2 and the surface of the output shaft 4 respectively, and the extrusion blocks are attached to the front side face of the sealing rings 14 respectively and slide.

The working principle is as follows: when the sealing device is used, the rotating cylinder 11 can be driven to move backwards on the surface of the sleeve 2 by rotating, and then the limiting rod 10 can be pushed to drive the circular ring 6 to move backwards in the cylinder 5, so that the annular rubber cylinder 7 can be extruded while the spring 9 is compressed, and further the surface of the output shaft 4 can be sealed once by the annular rubber cylinder 7, and simultaneously along with the backward movement of the rotating cylinder 11, the mounting seat 12 and the semicircular ring 13 can be pulled to move backwards, so that the extrusion blocks fixedly connected with the rear side surface of the semicircular ring 13 can respectively abut against the front side surface of the sealing ring 14, so that the sealing ring 14 can move backwards to tightly fit and seal with the front end surface of the sleeve 2 and the surface of the output shaft 4, and further the front side and the rear side surfaces of the sleeve 2 and the cylinder 5, meanwhile, the sealing performance is greatly improved by rotating and sealing the output shaft 4 with the multiple rear side surfaces of the sleeve 2 and the cylinder 5, and meanwhile, the sealing performance can be disassembled from the mounting seat 12 by unscrewing the bolts on the semicircular ring 13 when damaged, furthermore, the sealing ring 14 with large abrasion can be efficiently and timely sealed by disassembling the semi-circular ring 13.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A sealing device for oil leakage of a reduction gearbox of an oil production plant comprises the reduction gearbox (1), wherein a sleeve (2) is fixedly connected to the front side surface of the reduction gearbox (1), an outer cylinder (3) is fixedly connected to the front end of the sleeve (2), an output shaft (4) is rotatably sleeved in the sleeve (2), the sealing device is characterized in that a cylinder (5) is fixedly connected to the inner wall of the front side of the reduction gearbox (1), a circular ring (6) is arranged on the front side in the cylinder (5), the rear end of the output shaft (4) penetrates through the cylinder (5) and extends into the reduction gearbox (1), guide cylinders (8) are fixedly connected to the rear side surface of the circular ring (6) and the inner wall of the rear side of the cylinder (5), a spring (9) is fixedly connected between the guide cylinders (8) on the front side and the rear side of the rear side, and an annular rubber cylinder (7) is fixedly connected between the rear side surface of the circular ring (6) and the inner wall of the cylinder (5), the front side array fixedly connected with gag lever post (10) and every of ring (6) the front end of gag lever post (10) all passes the front side of reducing gear box (1) and extends the front side at reducing gear box (1), the lateral surface thread bush of sleeve (2) is equipped with rotary drum (11), front side array fixedly connected with mount pad (12) of rotary drum (11), each the front side of mount pad (12) is provided with two semicircle rings (13) about, respectively, every semicircle ring (13) all through the bolt with respectively between mount pad (12) of one side fixed connection, be provided with sealing washer (14) in urceolus (3), every semicircle ring (13) are close to the equal array fixedly connected with extrusion piece in one side of sealing washer (14).

2. The sealing device for oil leakage of the reduction gearbox of the oil production plant according to the claim 1 is characterized in that a sealing rotating sleeve is arranged between the rear end of the output shaft (4) and the rear side surface of the cylinder (5), and the front end of the output shaft (4) extends to the front side of the outer cylinder (3).

3. The sealing device for the oil leakage of the reduction gearbox of the oil production plant as recited in claim 1, wherein the ring (6) is slidably arranged in the cylinder (5) and slidably sleeved on the surface of the output shaft (4) in the cylinder (5), and the guide cylinders (8) on the front side and the rear side are mutually sleeved.

4. The sealing device for the oil leakage of the reduction gearbox of the oil production plant as claimed in claim 1, wherein the front end of each limiting rod (10) and the rear side surface of the rotating cylinder (11) are mutually abutted, and the surface of the limiting rod (10) and the front side surface of the reduction gearbox (1) are mutually in sliding seal.

5. The sealing device for oil leakage of the reduction gearbox of the oil production plant according to claim 1, characterized in that the semicircular rings (13) on the upper and lower sides are symmetrically arranged and fixedly connected with the mounting seat (12) on one side of each semicircular ring through bolts, and the rear side surface of each semicircular ring (13) is fixedly connected with the extrusion blocks in an array manner.

6. The sealing device for the oil leakage of the reduction gearbox of the oil production plant as claimed in claim 1 or 5, wherein the sealing ring (14) is slidably arranged in the outer cylinder (3) and is respectively sleeved with the front end face of the sleeve (2) and the surface of the output shaft (4), and the extrusion blocks are respectively attached to and slide with the front side face of the sealing ring (14).