CN213478655U

CN213478655U - Twin-screw compressor with electric barring gear

Info

Publication number: CN213478655U
Application number: CN202020965008.2U
Authority: CN
Inventors: 涓ヤ寒; 严亮
Original assignee: Shanghai Dalong Machinery Factory Co ltd
Current assignee: Shanghai Dalong Machinery Factory Co ltd
Priority date: 2020-05-30
Filing date: 2020-05-30
Publication date: 2021-06-18
Anticipated expiration: 2030-05-30

Abstract

The utility model relates to a from twin-screw compressor of taking electric barring gear, including compressor body and electric barring gear, wherein: the compressor body is provided with a shell, a male rotor and a female rotor, one end of the female rotor is provided with a part which extends out of the shell and extends out of the shell, and the shell around the end of the female rotor is provided with a circle of bosses; the electric barring gear comprises a connecting support, a barring motor and a clutch, wherein the barring motor and the clutch are arranged on the connecting support, the connecting support is buckled on a part of the female rotor, which extends out of the shell, and is in sealing connection with the boss, and the clutch is located in the connecting support and is in transmission connection with a part of the female rotor, which extends out of the shell. Compared with the prior art, the utility model has the advantages that the structure form of the compressor shell and the female rotor is improved, so that the electric barring gear can be arranged on the compressor body, and the purpose of integrating the compressor and the barring gear is achieved; meanwhile, the electric barring gear is simple in structure and universal, so that the electric barring gear is suitable for most screw compressors.

Description

Twin-screw compressor with electric barring gear

Technical Field

The utility model belongs to the technical field of the twin-screw compressor technique and specifically relates to a twin-screw compressor from electrified barring gear is related to.

Background

The double-screw compressor is widely applied to the technical fields of petroleum, chemical industry and alkali production. Most screw compressors are assembled and debugged, debugged before starting and stopped for a long time for storage, and turning gear devices are used to check whether the male and female rotors of the compressor are blocked or abnormal during rotation. The barring gear is therefore a very important device for screw compressors. The turning function of the machine set is realized by manually turning the coupling through a turning tool; or the driving machine part is provided with the electric barring gear. The former is manual operation, and is high to operating personnel technical requirement, and manual operation does not conform to the demand that tends to the automation industry simultaneously, is eliminated by some users, and the latter needs the driving machine to change its normal model, can lengthen to the design cycle of driving machine, and the acquisition cost of driving machine also can increase more correspondingly.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a from twin-screw compressor who takes electric barring gear in order to overcome the defect that above-mentioned prior art exists.

The purpose of the utility model can be realized through the following technical scheme:

a twin screw compressor with electric barring gear comprising:

the compressor body is provided with a shell, a male rotor and a female rotor which are positioned in the shell, one end of the female rotor is provided with a part which extends out of the shell and extends out of the shell, the shell around the end of the female rotor is provided with a circle of lug bosses,

the electric barring gear comprises a connecting support, a barring motor arranged on the connecting support and a clutch in transmission connection with the barring motor, wherein the connecting support is buckled on a part of a female rotor extending out of a shell and is in sealing connection with a boss, and the clutch is located in the connecting support and is in transmission connection with the part of the female rotor extending out of the shell.

Preferably, the connecting support is in a cylinder shape, the barring motor is connected to one end of the cylinder-shaped connecting support, and the boss is connected to the other end of the cylinder-shaped connecting support.

Preferably, the connecting support and the boss are fixed through fastening bolts.

Preferably, silicone sealant is arranged between the connecting support and the boss.

Preferably, the part of the female rotor extending out of the shell is a female rotor extending shaft fixedly connected to the end part of the female rotor.

Preferably, the protruding shaft of the female rotor is welded with the female rotor or integrally formed with the female rotor.

Preferably, the housing is composed of a housing body with an inner cavity and end covers connected to two ends of the housing body, one end of the female rotor extends out of the housing body from one end cover and extends out of the end cover, and the boss is arranged on the outer side face of the end cover.

Preferably, a turning motor hand wheel is connected to the turning motor.

Preferably, the clutch is a dog clutch which is in driving connection with the part of the female rotor which extends out of the housing by meshing engagement.

Preferably, the clutch is connected with a clutch handle.

The utility model relates to a new compressor housing mainly is through changing the appearance, increases a boss (preferably circular sand grip) on screw compressor's end cover (for example front end housing), and the boss level finish degree is preferred 3.2 for as the connection face with barring gear. And (four) threaded holes (for example, M20 threaded holes) are uniformly distributed on the boss, and the end cover and the turning gear are connected by using studs and nuts as fasteners. The connecting surface is coated with silicone sealant to prevent the lubricating oil in the end cover from leaking out through the gap of the connecting surface. While the boss is centrally perforated (e.g. by a through-hole)

Through-hole) designed to improve the shaft length of the female rotor so that it passes through the end cap through-hole to serve as the input shaft for operation of the barring gear and is preferably chrome plated at the shaft extension end. The electric barring gear is of a manual engaging type and an automatic or manual disengaging type. The starting of the barring motor is only allowed when the dog clutch is in full engagement with the female rotor protruding shaft.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses from twin-screw compressor of taking electric barring device is through improving the compressor housing, makes compressor ability and barring device lug connection, improves cloudy rotor shaft length, makes its input shaft as barring device, goes out the axle engagement with cloudy rotor completely through the claw clutch of barring device and realizes the barring function to reach the theory of barring device and compressor body integration. This kind of from helical-lobe compressor who takes electric barring device degree of automation is high, and manual operation volume is few, and the rotational speed is more stable than manual barring, has reduced the harm that artifical error caused the compressor. Meanwhile, the compressor and the barring gear are integrated, and the assembly between the compressor and the barring gear can be independently completed by a compressor design and manufacturing unit, so that the design coordination and communication between a compressor factory and a driving machine factory when the barring gear is configured by a driving machine originally is omitted, the design period is shortened, and the design cost is saved. Through compressor function and barring device lug connection, the joint surface is scribbled with silicone and is sealed gluey, has not only avoided the protecgulum oil leak of compressor, has reduced the barring device oil leak simultaneously, and the using oil wisely protects the environment. The shaft outlet end of the female rotor is plated with chromium, so that the female rotor is wear-resistant and has long service life. And the utility model discloses can obtain through improving on current twin-screw compressor's basis very easily.

Drawings

Fig. 1 is an assembly schematic diagram of a twin-screw compressor with an electric barring gear of the present invention;

fig. 2 is a partial structural schematic diagram of the twin-screw compressor with the electric barring gear of the present invention.

In the figure, 11 is a housing, 111 is a housing body, 112 is an end cover, 1121 is a boss, 12 is a male rotor, 13 is a female rotor, 131 is a female rotor extension shaft, 14 is a fastening bolt, 15 is silicone sealant, 21 is a connecting support, 22 is a turning motor, 23 is a clutch, 24 is a turning motor hand wheel, and 25 is a clutch handle.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Example 1

A twin-screw compressor with an electric barring gear comprises a compressor body and the electric barring gear, as shown in figures 1-2, wherein: the compressor body is provided with a shell 11, a male rotor 12 and a female rotor 13 which are positioned in the shell 11, one end of the female rotor 13 is provided with a part which extends out of the shell 11 and extends out of the shell 11, and the shell 11 around the end of the female rotor 13 is provided with a circle of bosses 1121; the electric barring device comprises a connecting support 21, a barring motor 22 arranged on the connecting support 21 and a clutch 23 in transmission connection with the barring motor 22, wherein the connecting support 21 is buckled on a part of the female rotor 13 extending out of the shell 11 and is in sealing connection with the boss 1121, and the clutch 23 is positioned in the connecting support 21 and is in transmission connection with a part of the female rotor 13 extending out of the shell 11.

In this embodiment, the housing 11 is composed of a housing body 111 having an inner cavity and end covers 112 connected to two ends of the housing body 111, one end of the female rotor 13 extends out of the housing 11 from one end cover 112 and extends out of the end cover 112, and the boss 1121 is disposed on an outer side surface of the end cover 112. The portion of the female rotor 13 extending out of the housing 11 is preferably a female rotor extension shaft 131 fixedly attached to the end of the female rotor 13. Preferably, the female rotor protruding shaft 131 is welded to the female rotor 13 or the female rotor protruding shaft 131 is integrally formed with the female rotor 13, and in this embodiment, it is further preferable that the female rotor protruding shaft 131 is integrally formed with the female rotor 13.

Preferably, the connection support 21 is cylindrical, the barring motor 22 is connected to one end of the cylindrical connection support 21, and the boss 1121 is connected to the other end of the cylindrical connection support 21 (through surface sealing connection). And the connection holder 21 and the boss 1121 are fixed by the fastening bolt 14. Silicone sealant 15 is arranged between the connecting support 21 and the boss 1121. Preferably, a turning motor handwheel 24 is connected to the turning motor 22. Preferably, the clutch 23 is a dog clutch which is drivingly connected to the portion of the female rotor 13 extending out of the housing 11 by engagement, and a clutch handle 25 is also connected to the clutch 23.

In the embodiment, a boss (preferably a circular convex strip) is added on a head cover (such as a front head cover) of the screw compressor mainly by changing the shape, and the optical smoothness of the plane of the boss is preferably 3.2, so as to be used as a connecting surface with the turning gear. The (four) threaded holes (such as M20 threaded holes) are uniformly distributed on the boss, and the threaded holes are used for studs and screwsThe nuts are used as fasteners to connect the end cover and the barring gear. The connecting surface is coated with silicone sealant to prevent the lubricating oil in the end cover from leaking out through the gap of the connecting surface. While the boss is centrally perforated (e.g. by a through-hole)

In this embodiment, the control structures between the engagement and disengagement of the clutch and the protruding shaft of the female rotor, between the engagement handle and the clutch, and between the handwheel of the barring motor and the barring motor can all adopt the related control structures of the electric barring gear in the prior art. The specific operation steps of the turning gear in operation are as follows:

1. starting a unit oil way lubricating system before starting the barring;

2. it is checked whether the clutch (dog clutch) is in a fully engaged state. If not, the hand wheel of the barring motor above the barring motor is rotated in the direction indicated by the arrow on the barring shell, and meanwhile, the barring operating handle is pulled away from the compressor box body, so that the clutch is ensured to be in a complete meshing state.

3. And starting a barring motor, and driving the whole unit to operate by the barring. When starting the barring motor, attention should be paid to observe that the barring device should operate stably without phenomena such as impact vibration abnormal sound and the like, and oil leakage phenomena do not exist at each sealing part and a joint surface.

4. In the turning state, the turning device drives the whole unit to operate, after a prime motor of the unit is started, and the rotating speed of a female rotor shaft of the compressor is greater than that of the turning device, the claw-type clutch is automatically separated, the turning operating handle is automatically positioned at a separation position (namely the turning operating handle is positioned close to the direction of a compressor box body), at the moment, the power supply of a turning motor is cut off, and the turning device stops operating.

The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.

Claims

1. A twin-screw compressor with an electric barring gear is characterized by comprising:

the compressor body is provided with a shell (11), a male rotor (12) and a female rotor (13) which are positioned in the shell (11), one end of the female rotor (13) is provided with a part which extends out of the shell (11) and extends out of the shell (11), the shell (11) around the end of the female rotor (13) is provided with a circle of bosses (1121),

electric barring gear has connection support (21), sets up barring motor (22) on connecting support (21) and clutch (23) with barring motor (22) transmission connection, connection support (21) detain locate on female rotor (13) stretch out the part of casing (11) to with boss (1121) sealing connection, clutch (23) be located connecting support (21) to be connected with female rotor (13) stretch out the part transmission of casing (11).

2. The twin-screw compressor with the electric barring gear according to claim 1, wherein the connection support (21) is of a cylinder type, the barring motor (22) is connected to one end of the cylinder type connection support (21), and the boss (1121) is connected to the other end of the cylinder type connection support (21).

3. The twin-screw compressor with electric barring gear according to claim 1, characterised in that the connection seat (21) and the boss (1121) are fixed by a fastening bolt (14).

4. The twin-screw compressor with electric barring gear according to claim 1 or 3 characterised in that silicone sealant (15) is provided between the connection support (21) and the boss (1121).

5. The twin-screw compressor with electric barring gear according to claim 1, characterised in that the part of the female rotor (13) protruding from the housing (11) is a female rotor protruding shaft (131) fixedly connected to the end of the female rotor (13).

6. The twin-screw compressor with electric barring gear according to claim 5 characterised in that the female rotor protruding shaft (131) is welded to the female rotor (13) or the female rotor protruding shaft (131) is integrally formed with the female rotor (13).

7. The twin-screw compressor with electric barring gear according to claim 1 wherein the housing (11) is comprised of a housing body (111) having an inner cavity and end caps (112) connected to both ends of the housing body (111), one end of the female rotor (13) is extended out of the housing (11) from one end cap (112) and extended outward of the end cap (112), and the boss (1121) is provided on an outer side surface of the end cap (112).

8. The twin-screw compressor with the electric barring gear according to claim 1 is characterized in that a barring motor hand wheel (24) is connected to the barring motor (22).

9. Twin-screw compressor with electric barring gear according to claim 1 characterised in that the clutch (23) is a dog clutch, drivingly connected by meshing with the part of the female rotor (13) that protrudes from the housing (11).

10. The twin-screw compressor with electric barring gear according to claim 9 characterised in that the clutch (23) is connected with a clutch handle (25).