CN207539035U - A kind of head end cover sealing device of air compressor machine - Google Patents

Abstract

The utility model discloses a kind of head end cover sealing device of air compressor machine, motor shaft including air compressor machine, it is sheathed on the head end cap of the motor shaft, and it is set between the two for the first outside framework oil seal of sealing, further include the second outside framework oil seal, oil seal cover, pneumatic triple piece, connect tracheae, oil seal cover inner wall circumferentially opens up fluted, second outside framework oil seal is arranged in groove, oil seal cover is stated to be sheathed on motor shaft and be bonded fixation with head end cap end face, second outside framework oil seal and motor sealing, oil seal cover, head end cap has circumferential gap A with motor shaft respectively, B, circumferential gap A, B passes through the first outside framework oil seal, second outside framework oil seal blocks to form annular seal space, connection tracheae wears head end cap and is connected with annular seal space, pneumatic triple piece is external with connecting tracheae connection.The utility model advantage：Pressurized seal and outside framework oil seal cooperate, and enhance sealing effect, improve sealing life, reduce outside framework oil seal replacement frequency, save repair replacement cost.

Description

A kind of head end cover sealing device of air compressor machine

Technical field

The utility model is related to a kind of sealing device, more particularly, to a kind of head end cover sealing device of air compressor machine.

Background technology

There are itself design defect, the motor shaft of air compressor machine is designed to be used as gear-box level-one ATLASGA90 types air compressor machine The gear shaft of transmission, machine oil in gear-box is by a skeleton oil seal on head end cap, during due to gear drive Vibration has been applied directly on motor shaft, the service life of outside framework oil seal is caused to only have half a year to 1 year, due to the replacement of outside framework oil seal It is very cumbersome, it needs to disassemble motor and gear-box, it is also necessary to which the replacement of outside framework oil seal could be carried out by destroying after bearing, be replaced with This is high, and time-consuming for replacement, very influences normal production.

Utility model content

Purpose of utility model：In view of the above-mentioned problems, the purpose of this utility model is to provide a kind of head end cap of air compressor machine Sealing device improves sealing life, so as to save replacement cost, ensures normal production.

Technical solution：A kind of head end cover sealing device of air compressor machine, the motor shaft including air compressor machine are sheathed on the electricity The head end cap of arbor and be set between the two for sealing the first outside framework oil seal, further include the second outside framework oil seal, oil Capping, pneumatic triple piece, connection tracheae, the oil seal cover inner wall circumferentially opens up fluted, and second outside framework oil seal is arranged in In the groove, the oil seal cover is sheathed on the motor shaft and fixation, second skeleton is bonded with the head end cap Oil sealing and the motor sealing, the oil seal cover, the head end cap are in first outside framework oil seal and second skeleton There is circumferential gap A, B with the motor shaft respectively between oil sealing, pass through first outside framework oil seal, second outside framework oil seal It blocks described gap A, B and forms annular seal space, the connection tracheae is arranged in the head end cap and is connected with the annular seal space, described Pneumatic triple piece is connected external with the connection tracheae.

First outside framework oil seal and the second outside framework oil seal ensure that the leakproofness of annular seal space, by pneumatic triple piece to annular seal space In be passed through gas, form pressurized seal, the machine from an original skeleton oil seal gear-box by head end cap Oil upgrades into cooperating with each other for outside framework oil seal and pressurized seal, while sealing effect is further enhanced, improves close Seal the service life.

Further, the oil seal cover includes oil sealing end cap, oil sealing cover, is opened on the inner peripheral surface of the oil sealing cover side Equipped with annular groove, the side that the oil sealing cover is equipped with the annular groove is connect with the side of the oil sealing end cap, and in the annular groove Place's engagement forms the groove, the opposite side of the oil sealing end cap or the opposite side of the oil sealing cover and is pasted with the head end cap It closes and fixes.

Oil seal cover is arranged to oil sealing end cap, oil sealing cover two parts so that the second outside framework oil seal easily facilitates installation.

Further, the oil sealing end cap or the oil sealing cover are bonded fixation with the head end cap by bolt one, The bolt one is around the motor shaft in circumferential uniformly distributed.

Further, the oil sealing end cap is connect with the oil sealing cover by bolt two, and the bolt two is around the electricity Arbor is in circumferential uniformly distributed.

Further, the present apparatus further includes sealing ring, and the sealing ring is bonded in the oil seal cover with the head end cap Fixed between face, sealing ring can further improve the leakproofness of annular seal space, effectively prevent being passed through the leakage of gas.

Further, it is oil-containing compressed air that the pneumatic triple piece, which is passed through the annular seal space,.

Be passed through the tertiary treatment that oil-containing compressed air in annular seal space passes through pneumatic triple piece, the first order for contaminant filter and Water filtration is handled, and the second level is handled for pressure regulation, and third extremely fog lubrication is handled, and oil-containing compressed air can not only play air pressure The effect of sealing also plays lubricating action to the first outside framework oil seal and the second outside framework oil seal, so as to improve the first outside framework oil seal With the service life of the second outside framework oil seal, wear rate is reduced.

Best, pressure in the case when pressure of the oil-containing compressed air works more than the gear-box of air compressor machine, so as to Ensure the validity of pressurized seal.

Advantageous effect：Compared with prior art, the utility model has the advantages that：Retain original first outside framework oil seal, and increase If the second outside framework oil seal, annular seal space is formed by the closure of the first outside framework oil seal and the second outside framework oil seal, gas is passed through in annular seal space Body forms pressurized seal, can effectively cope with vibration problem during gear drive, reduces the wear rate of outside framework oil seal, improves close The service life of seal apparatus, so as to save repair replacement cost；Pressurized seal and outside framework oil seal cooperate with each other, and enhance sealing effect Fruit, in addition, even if in the case where outside framework oil seal is worn, pressurized seal remains to keep sealing effect, so as to further prolong The service life of long sealing device.

Description of the drawings

Fig. 1 is the utility model schematic cross-sectional view.

Specific embodiment

In the following with reference to the drawings and specific embodiments, the utility model is furtherd elucidate.

The head end cover sealing device of a kind of air compressor machine, as shown in Figure 1, including motor shaft 1, head end cap 2, the first skeleton Oil sealing 3, the second outside framework oil seal 4, oil seal cover 5, pneumatic triple piece 6, connection tracheae 7, sealing ring 12, the head end cap 2 of air compressor machine Including the electric motor end cap 21 being mutually butted and gear box end cover 22, the first outside framework oil seal 3 is set to the motor shaft 1 and tooth of air compressor machine It is bonded between roller box end cap 22 and with the two respectively, gear box end cover 22 is sheathed on motor shaft 1 and passes through bearing and motor shaft 1 Connection, oil seal cover 5 are sheathed on motor shaft 1, and oil seal cover 5 includes oil sealing end cap 51 and oil sealing cover 52,52 side of oil sealing cover Inner peripheral surface on offer annular groove, oil sealing cover 52 be equipped with the side of annular groove with the side of oil sealing end cap 51 by multiple around motor Axis 1 is connected in circumferentially uniformly distributed bolt 2 11, and engages to form groove 8 at annular groove, and the second outside framework oil seal 4 is arranged in groove 8 In and seal with motor shaft 1, the opposite side of oil sealing end cap 51 or the opposite side of oil sealing cover 52 pass through spiral shell with gear box end cover 22 The fitting of bolt 1 is fixed, bolt 1 around motor shaft 1 in circumferential uniformly distributed, oil sealing end cap 51 or oil sealing cover 52 and gear box end cover Sealing ring 12 is fixed between 22 binding face, between the first outside framework oil seal 3 and the second outside framework oil seal 4, gear box end cover 22 There is circumferential gap A31 with motor shaft 1, oil seal cover 5 has circumferential gap B41, circumferential gap A31, circumferential gap with motor shaft 1 B41 forms annular seal space 9 by the first outside framework oil seal 3, the closure of the second outside framework oil seal 4 in the axial direction, and connection tracheae 7 is arranged in machine Head end cover 2, connection 7 one end of tracheae are connect with external pneumatic triple piece 6, and the other end is connected with annular seal space 9, pneumatic triple piece 6 Oil-containing compressed air is passed through into annular seal space 9 by connecting tracheae 7.

Oil-containing compressed air is passed through in annular seal space and forms pressurized seal, the pressure of oil-containing compressed air generally remains in 0.2MP, at work, internal pressure is usually 0.15MP to the gear-box of air compressor machine, and the pressure for keeping oil-containing compressed air is big The state of pressure in case when gear-box works, it can be ensured that the validity of pressurized seal, ensure gear-box in machine oil not It leaks, pressurized seal and outside framework oil seal cooperate with each other, and enhance sealing effect.

Oil-containing compressed air is formed by the tertiary treatment of pneumatic triple piece, and the first order is at contaminant filter and water filtration Reason, the second level are handled for pressure regulation, and third extremely fog lubrication is handled, and being passed through the oil-containing compressed air of annular seal space can not only play The effect of pressurized seal also plays lubricating action to the first outside framework oil seal and the second outside framework oil seal, so as to improve the first skeleton The service life of oil sealing and the second outside framework oil seal reduces wear rate, effectively save repair replacement cost.

Claims (7)

1. a kind of head end cover sealing device of air compressor machine, the motor shaft (1) including air compressor machine are sheathed on the motor shaft (1) Head end cap (2) and be set between the two for sealing the first outside framework oil seal (3), it is characterised in that：Further include Two outside framework oil seals (4), oil seal cover (5), pneumatic triple piece (6), connection tracheae (7), oil seal cover (5) inner wall circumferentially offer Groove (8), second outside framework oil seal (4) are arranged in the groove (8), and the oil seal cover (5) is sheathed on the motor shaft (1) fixation is bonded on and with the head end cap (2), second outside framework oil seal (4) seals with the motor shaft (1), described Oil seal cover (5), the head end cap (2) between first outside framework oil seal (3) and second outside framework oil seal (4) respectively with The motor shaft (1) has circumferential gap A, B (31,41), passes through first outside framework oil seal (3), second outside framework oil seal (4) gap A, the B (31,41) are blocked and forms annular seal space (9), the connection tracheae (7) be arranged in the head end cap (2) with Annular seal space (9) connection, the pneumatic triple piece (6) connect external with the connection tracheae (7).

2. a kind of head end cover sealing device of air compressor machine according to claim 1, it is characterised in that：The oil seal cover (5) including oil sealing end cap (51), oil sealing cover (52), annular groove is offered on the inner peripheral surface of oil sealing cover (52) side, institute The side that side of the oil sealing cover (52) equipped with the annular groove is stated with the oil sealing end cap (51) is connect, and connect at the annular groove Conjunction forms the groove (8), the opposite side of the oil sealing end cap (51) or the opposite side of the oil sealing cover (52) and the machine Head end cover (2) fitting is fixed.

3. a kind of head end cover sealing device of air compressor machine according to claim 2, it is characterised in that：The oil sealing end cap (51) or the oil sealing cover (52) is bonded fixation, the bolt one (10) with the head end cap (2) by bolt one (10) Around the motor shaft (1) in circumferential uniformly distributed.

4. a kind of head end cover sealing device of air compressor machine according to claim 2, it is characterised in that：The oil sealing end cap (51) it is connect with the oil sealing cover (52) by bolt two (11), the bolt two (11) is around the motor shaft (1) in circumferential direction It is uniformly distributed.

5. a kind of head end cover sealing device of air compressor machine according to claim 1, it is characterised in that：Further include sealing ring (12), the sealing ring (12) is fixed between the oil seal cover (5) and the head end cap (2) binding face.

6. a kind of head end cover sealing device of air compressor machine according to claim 1, it is characterised in that：Described pneumatic three It is oil-containing compressed air that part (6), which is passed through the annular seal space (9),.

7. a kind of head end cover sealing device of air compressor machine according to claim 6, it is characterised in that：It is described to contain oil compression Pressure in case when the gear-box that the pressure of air is more than air compressor machine works.