CN201133338Y

CN201133338Y - Compressor body

Info

Publication number: CN201133338Y
Application number: CNU200720201449XU
Authority: CN
Inventors: 吴军; 游敦泉; 张利; 刘建杰; 李东海
Original assignee: SICHUAN JINXING COMPRESSOR MANUFACTURING Co Ltd
Current assignee: SICHUAN JINXING COMPRESSOR MANUFACTURING Co Ltd
Priority date: 2007-11-27
Filing date: 2007-11-27
Publication date: 2008-10-15
Anticipated expiration: 2017-11-27

Abstract

The utility model discloses a compressor body which has the advantage of being capable of ensuring that a compressor operates stably. The compressor body comprises a body and a middle body which are welded as whole. The body and the middle body are welded as a whole, which ensures that the body has good rigidity and good vibration-resistance performance and can improve the stability of the machine during the operating process. The two ends of the body are provided with rolling bearings, which can reduce the friction during the operating process and achieves the aim of saving energy, which is especially fit for being popularized and used in various large gas filling stations.

Description

The compressor fuselage

Technical field

The utility model relates to a kind of compressed machinery, especially relates to the compressor fuselage that a kind of gas station uses.

Background technique

At present, the compressor of prior art, in the fuselage casing lubricant oil is housed, lubricant oil is transported to each by the oil pump that is contained in crankshaft end needs lubricated position, and bent axle is contained on the bearing support of fuselage by bearing, motor and bent axle link, connecting rod is set on bent axle links to each other with the piston of compressor, the crank throw of connnecting rod big end and bent axle links, and connecting rod small end and crosshead body link, crosshead body is placed in the crosshead slideway of fuselage, and the other end and the piston rod of crosshead body link; When motor rotating band dynamic crankshaft rotates, crosshead body, piston rod, piston reciprocates, thereby the compression of realization gas.Gas earlier through one-level compression, cooling, separate, and then through two, three, level Four compression, cooling, separate, pressure progressively is increased to 25MPa (or required pressure) uses for system.In installing and using process, there is following problem in the compressor fuselage: 1, the compressor fuselage body of prior art adopts the cast iron manufacturing, and plasticity, poor toughness, manufacturability are poor; Fuselage separates with four middle bodies (crosshead slideway), and poor rigidity, freedom from vibration are poor, and assembling difficulty is big, and assembly precision is difficult for guaranteeing; 2, install and use sliding bearing on the fuselage body, the bearing support place is the subdivision structure, and frictional force is big, energy consumption is high, the bearing support poor rigidity, and running precision is low, and difficulty of processing is big, and processing, assembly precision be cannot say for sure to demonstrate,prove.3, fuselage adopts the many places middle bearing bracket, and difficulty of processing is big, easily produces the location during operation and burns and grind bearing shell, thereby influence the normal use of machine; 4, middle body crosshead slideway and the middle body that links with fuselage body is an integral body, and body was just scrapped during slideway wearing and tearing back was whole, change difficult, the cost height; 5, the oil strainer in the fuselage is placed in the fuselage oil sump, cleaned and changed difficulty.

The model utility content

Technical problem to be solved in the utility model provides a kind of compressor operation compressor fuselage stably that makes.

The technological scheme that its technical problem that solves the utility model adopts is: the compressor fuselage, comprise body and middle body, and body and middle body are welded as a whole.

Further be that the two ends of body are provided with rolling bearing pedestal.

In technique scheme, described rolling bearing pedestal adopts the integrated shaft bearing.

Further be that a positioning shaft bearing is set at the middle part of body.

In technique scheme, described positioning shaft bearing adopts the detachable shaft bearing.

Further be, middle body is provided with the crosshead slideway, and crosshead slideway and middle body removably connect.

Further be on the outer wall of body, to be set with the self sealing oil strainer.

The beneficial effects of the utility model are: by body and middle body are welded as a whole, make the good rigidly of body, freedom from vibration good, can improve the stationarity of machine in operation process.And rolling bearing is set by two ends at body, and can reduce the friction in the operation process, reach purpose of energy saving.

Description of drawings

Fig. 1 is the structure diagram of compressor fuselage in the prior art.

Fig. 2 is a structure diagram of the present utility model.

Fig. 3 is the A-A direction sectional view of Fig. 2.

Be labeled as body 1, middle body 2, rolling bearing pedestal 3, positioning shaft bearing 5, crosshead slideway 6, self sealing oil strainer 7 among the figure.

Embodiment

Below in conjunction with drawings and Examples the utility model is further specified.

As Fig. 2, shown in Figure 3, compressor fuselage of the present utility model comprises body 1 and middle body 2, and body 1 is welded as a whole with middle body 2.By body 1 and middle body 2 are welded as a whole, make the good rigidly of body 1, freedom from vibration good, can improve the stationarity of machine in operation process.Body 1 is preferably selected steel plate for use with middle body 2, can improve the plasticity and the toughness of machine like this, and the fatigue resistance when strengthening work for improving freedom from vibration, can also be provided with the reinforcement gusset in the many places, inside of body 1 simultaneously.

Frictional force when reducing machine works is provided with rolling bearing pedestal 3 at the two ends of body 1.When reducing frictional force, just reduce the consumption of energy like this, reached purpose of energy saving.The bearing support of rolling bearing pedestal 3 can be to adopt the detachable shaft bearing, also can be to adopt the integrated shaft bearing, and as preferred embodiment, rolling bearing pedestal 3 adopts the integrated shaft bearing.Can strengthen the rigidity and the freedom from vibration of machine like this.

Grind bearing shell for avoiding causing causing in the installation process to locate to burn, influence the normal operation of machine, a positioning shaft bearing 5 is set at the middle part of body 1.In installation process, bearing support is many more, its position each other will concentricity occur in installation process poor, thereby caused the location, similarly, bearing support 5 also can adopt dismounting bearing support or integrated shaft bearing, and for the ease of dismounting, described positioning shaft bearing 5 adopts the detachable shaft bearing.When changing the bearing shell of long-term use back wearing and tearing, it is promptly replaceable just can not need to dismantle bent axle like this.

For reducing the production maintenance cost, in the above embodiment, middle body 2 is provided with crosshead slideway 6, and crosshead slideway 6 removably connects with middle body 2.After long-term the use, because the wearing and tearing of crosshead slideway 6 need be changed crosshead slideway 6, and removably connect by employing, can directly change crosshead slideway 6 to get final product, reduced maintenance cost greatly.

For the ease of safeguarding, on the outer wall of body 1, be set with self sealing oil strainer 7.By self sealing oil strainer 7 being fixedly installed on the outer wall of body 1, just made things convenient for the cleaning and the replacing of self sealing oil strainer 7, be convenient to safeguard.

Claims

1. the compressor fuselage comprises body (1) and middle body (2), it is characterized in that: body (1) is welded as a whole with middle body (2).

2. compressor fuselage as claimed in claim 1 is characterized in that: the two ends of body (1) are provided with rolling bearing pedestal (3).

3. compressor fuselage as claimed in claim 2 is characterized in that: described rolling bearing pedestal (3) adopts the integrated shaft bearing.

4. compressor fuselage as claimed in claim 1 is characterized in that: at the middle part of body (1) a positioning shaft bearing (5) is set.

5. compressor fuselage as claimed in claim 4 is characterized in that: described positioning shaft bearing (5) adopts the detachable shaft bearing.

6. compressor fuselage as claimed in claim 1 is characterized in that: middle body (2) is provided with crosshead slideway (6), and crosshead slideway (6) removably connects with middle body (2).

7. compressor fuselage as claimed in claim 1 is characterized in that: be set with self sealing oil strainer (7) on the outer wall of body (1).