CN214424686U

CN214424686U - Lubricating structure applied to fracturing pump

Info

Publication number: CN214424686U
Application number: CN202022994390.2U
Authority: CN
Inventors: 薛建刚; 王乐乐; 郑志刚
Original assignee: SUZHOU ASIA PACIFIC METAL CO LTD
Current assignee: Suzhou Asia Pacific Jingrui Transmission Technology Co ltd
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2021-10-19
Anticipated expiration: 2030-12-14

Abstract

The utility model provides a be applied to lubricating structure in fracturing pump, including bent axle, rotary joint and gland, rotary joint with the tip fixed connection of bent axle, rotary joint cavity and with oil circuit intercommunication in the bent axle, the gland lid is located the rotary joint outside and power end side cap fixed connection, the confession has in the gland rotary joint tip male cavity, the port department of cavity is equipped with and is used for the cooperation rotary joint is right the cavity carries out sealed sealing device, be equipped with the intercommunication on the gland the connector of cavity, the connector is used for with outside teflon hose connection, forms lubricated return circuit. The utility model provides a pair of be applied to lubricating structure in fracturing pump, it can change the current situation that rotary joint exposes at the box to guarantee that lubricating structure's cooperation is unlikely to bump the trouble because of the outside, thereby guarantee lubricated, the fracturing unit truck can normal operating.

Description

Lubricating structure applied to fracturing pump

Technical Field

The utility model relates to a fracturing pump accessory technical field, in particular to be applied to lubricating structure in fracturing pump.

Background

In the conventional hydraulic fracturing pump, the crankshaft position rotates relative to the housing, and large friction is generated, so that the crankshaft needs to be lubricated. And on the position of crankshaft lubrication joint, use rotary joint to add crossover sub and connect, rotary joint is rotatory with the bent axle, and the defeated oil pipe of crossover sub connection does not rotate, and then realizes rotating to static conversion, adopts rotatory oil blanket to realize sealing between rotary joint and crossover sub. In the prior art, the rotary joint is arranged outside the fracturing pump box body and is easily damaged, so that the matching problem is caused, the oil leakage condition is generated, and the fault point is formed.

Therefore, in order to overcome the defects of the prior art, a lubricating structure applied to a fracturing pump needs to be designed to solve the problems.

SUMMERY OF THE UTILITY MODEL

For overcoming the not enough among the above-mentioned prior art, the utility model aims to provide a be applied to lubricating structure in the fracturing pump.

In order to achieve the above objects and other related objects, the present invention provides a technical solution: the utility model provides a be applied to lubricating structure in fracturing pump, includes bent axle, rotary joint and gland, rotary joint with the tip fixed connection of bent axle, rotary joint cavity and with oil circuit intercommunication in the bent axle, the gland lid is located the rotary joint outside and power end side cap fixed connection, the confession has in the gland rotary joint tip male cavity, the port department of cavity is equipped with and is used for the cooperation rotary joint is right the cavity carries out sealed sealing device, be equipped with the intercommunication on the gland the connector of cavity, the connector is used for with outside teflon hose connection, forms lubricated return circuit.

The preferable technical scheme is as follows: the sealing device comprises a clamp spring and a sealing ring, the sealing ring is sleeved on the rotary joint and passes through the clamp spring to fix the axial position, and the clamp spring is located on the inner side of the sealing ring and fixedly connected with the port part of the cavity.

The preferable technical scheme is as follows: the cavity is further provided with a copper sleeve, the end of the rotary joint is sleeved with the copper sleeve, one end of the copper sleeve abuts against the inner wall of the cavity, and the other end of the copper sleeve abuts against the sealing ring.

Because of the application of the technical scheme, the utility model discloses the beneficial effect who has does:

the utility model provides a be applied to lubricating structure in fracturing pump, it can change the current situation that rotary joint exposes at the box to guarantee that lubricating structure's cooperation is unlikely to because of the outside bumps the trouble, thereby guarantees lubricated, the fracturing unit truck can normally operate.

Drawings

Fig. 1 is a schematic view of the present invention.

In the above drawings, 1, a crankshaft; 2. a rotary joint; 3. a clamp spring; 4. a seal ring; 5. a copper sleeve; 6. a gland; 7. a power end side cover.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

Please refer to fig. 1. It should be understood that in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the product of the present invention is usually placed when in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in fig. 1, for the utility model provides a be applied to lubricating structure in fracturing pump, including bent axle 1, rotary joint 2 and gland 6.

Wherein, rotary joint 2 and the end fixed connection of bent axle 1, rotary joint 2 cavity and the oil circuit intercommunication in the bent axle 1. The gland 6 is covered on the outer side of the rotary joint 2 and is fixedly connected with the power end side cover 7. The gland 6 is provided with a cavity for inserting the end part of the rotary joint 2, and the port of the cavity is provided with a sealing device for sealing the cavity by matching with the rotary joint. The gland 6 is provided with a connecting port (not marked in the figure) communicated with the cavity, and the connecting port is used for being connected with an external Teflon hose to form a lubricating loop.

Specifically, sealing device includes jump ring 3 and sealing washer 4, and sealing washer 4 cover is located rotary joint 2 and through the fixed axial position of jump ring 3, guarantees that there is not axial motion in sealing washer 4 to increase sealing washer 4's life (jump ring 3 is located the inboard of sealing washer 4 and with the port portion fixed connection of cavity).

In addition, still be equipped with copper sheathing 5 in the cavity, the tip of rotary joint 2 is located to copper sheathing 5 cover, and the one end of copper sheathing 5 and the inner wall of cavity offset, and the other end and the sealing washer 4 of copper sheathing 5 offset.

Therefore, the utility model has the advantages of it is following:

the utility model provides a pair of be applied to lubricating structure in fracturing pump, it can change the current situation that rotary joint exposes at the box to guarantee that lubricating structure's cooperation is unlikely to bump the trouble because of the outside, thereby guarantee lubricated, the fracturing unit truck can normal operating.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a be applied to lubricating structure in fracturing pump which characterized in that: including bent axle, rotary joint and gland, rotary joint with the tip fixed connection of bent axle, rotary joint cavity and with oil circuit intercommunication in the bent axle, the gland lid is located the rotary joint outside and power end side cap fixed connection, the confession has in the gland rotary joint tip male cavity, the port department of cavity is equipped with and is used for the cooperation rotary joint is right the cavity carries out sealed sealing device, be equipped with the intercommunication on the gland the connector of cavity, the connector is used for with outside teflon hose connection, forms lubricated return circuit.

2. The lubrication structure applied to a fracturing pump according to claim 1, wherein: the sealing device comprises a clamp spring and a sealing ring, the sealing ring is sleeved on the rotary joint and passes through the clamp spring to fix the axial position, and the clamp spring is located on the inner side of the sealing ring and fixedly connected with the port part of the cavity.

3. The lubrication structure applied to a fracturing pump according to claim 2, wherein: the cavity is further provided with a copper sleeve, the end of the rotary joint is sleeved with the copper sleeve, one end of the copper sleeve abuts against the inner wall of the cavity, and the other end of the copper sleeve abuts against the sealing ring.