CN2064822U - Mechanical sealed wet coal electric drill speed reducer - Google Patents

Abstract

The utility model provides a mechanical sealed wet coal electric drill speed reducer. The speed reducer for a wet coal electric drill is characterized in that a water pipe and an output shaft which is rotated at high speed are sealed and connected by a mechanical device, and has the advantages of good sealing performance, no leakage and long service life. For the wet coal electric drill which is provided with the speed reducer, sealing elements are unnecessary to be replaced frequently due to water leakage which is caused by the quick abrasions of the sealing elements, so that the maintenance period can be prolonged. The utility model can also improve the dry and wet performances of the wet coal electric drill.

Description

Mechanical sealed wet coal electric drill speed reducer

The utility model relates to reducer, the particularly a kind of mechanical seal wet type electric coal drill reducer that a kind of improved wet type electric coal drill is used.

At present, the employed MZS-1.2A type of China's coal-mine wet type electric coal drill reducer, output shaft is a hollow shaft, wet type electric coal drill institute water passes through water pipe---and hollow output shaft-hollow boring bit directive bores point, adopt the rubber seal sealed attachment between the hollow output shaft of static water pipe and rotation at a high speed, rubber seal quick abrasion, life-span are very short, make MZS-1.2A type wet type electric coal drill leak the rubber seal of having to change continually.

The purpose of this utility model is to overcome the deficiencies in the prior art, offers a kind of mechanical seal reducer of wet type electric coal drill, and this wet type electric coal drill reducer good seal performance, seal life are long.

The purpose of this utility model is achieved in that a kind of mechanical seal wet type electric coal drill reducer, it comprises the tertiary gear deceleration device, casing, mechanical reduction gear final stage semi-hollow output shaft, water pipe head, be sleeved on semi-hollow output shaft on the mechanical reduction gear final stage semi-hollow output shaft and the mechanical seal coupling arrangement between water pipe head, prevent between semi-hollow output shaft and mechanical seal coupling arrangement that the cavity top of semi-hollow output shaft is provided with water inlet along the vertical O RunddichtringO that sluices of semi-hollow output shaft, be provided with a water inlet at the corresponding with it position of casing; Describedly be sleeved on semi-hollow output shaft on the mechanical reduction gear final stage semi-hollow output shaft and the mechanical seal coupling arrangement between water pipe head comprises: with the axle sleeve and the spring of semi-hollow output shaft rotation, end envelope rotating ring, end envelope stationary ring, housing, the water inlet that axle sleeve is provided with after the assembling and open at the corresponding position of water inlet of semi-hollow output shaft, be provided with a water inlet at the corresponding with it position of housing, axle sleeve is contained in the housing, on the axle sleeve of axle sleeve water inlet both sides, be set with end envelope rotating ring, end envelope rotating ring is by seal and sleeve sealing, can and can on axle sleeve, slide with the axle sleeve rotation, be set with a spring on the axle sleeve between the envelope rotating ring of two ends, be set with end envelope stationary ring on the axle sleeve in the envelope rotating ring outside, two ends, end envelope stationary ring is by sealing ring and housing seal assembling, can not rotate with axle sleeve; Above-mentioned mechanical seal wet type electric coal drill reducer is: be fixedly set in the mechanical seal coupling arrangement on the final stage semi-hollow output shaft of mechanical reduction gear by its axle sleeve, seal, prevent from vertically to sluice with the O RunddichtringO at the semi-hollow output shaft of semi-hollow output shaft water inlet both sides and the shaft room of mechanical seal coupling arrangement, by the casing water inlet water pipe head is screwed into the water inlet of mechanical seal coupling arrangement housing and the sealed attachment that sealing realizes water pipe head and mechanical seal coupling arrangement again along the semi-hollow output shaft.

The mechanical seal principle of this mechanical seal wet type electric coal drill reducer is: the water that enters reducer mechanical seal coupling arrangement by water pipe head, because the end envelope rotating ring outside is by the sealing of end envelope stationary ring with the end envelope rotating ring of sealing ring and the housing seal of mechanical seal coupling arrangement, the seal sealing of end envelope rotating ring and mechanical seal coupling arrangement shaft room, the semi-hollow output shaft of semi-hollow output shaft water inlet both sides and mechanical seal coupling arrangement shaft room be with the sealing of O RunddichtringO, on can only warp beam sleeve water inlet---the water inlet on the semi-hollow output shaft enters semi-hollow output shaft cavity, export by the semi-hollow output shaft.

In the utility model, the wearing and tearing of seal one end envelope stationary ring and end envelope rotating ring, can slide by spring pressure side envelope rotating ring is compensated.

Advantage of the present utility model and good effect are as follows:

This reducer is compared with existing MZS-1.2A type wet type electric coal drill reducer: good seal performance, nothing are leaked, seal life is long, using the wet type electric coal drill of this reducer to cause soon as sealing part abrasion leaks, change seal continually, prolonged maintenance cycle, avoided between the output shaft of at a high speed rotation and static water pipe, adopting the rubber seal sealing, the problem of rubber seal serious wear when cutting off the water supply, improved the electric drill dual-use capability of doing, wet.

Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail:

Fig. 1 is the front view of mechanical seal wet type electric coal drill reducer.

Fig. 2 is a mechanical seal wet type electric coal drill reducer gear deceleration device expanded view.

Fig. 3 is the front view of mechanical seal wet type electric coal drill reducer mechanical seal coupling arrangement.

Fig. 4 is the schematic diagram of mechanical seal wet type electric coal drill reducer semi-hollow output shaft.

Fig. 5 is the schematic diagram of mechanical seal coupling arrangement axle sleeve.

Fig. 6 is the schematic diagram of mechanical seal coupling arrangement drive sleeve.

Fig. 7 is the schematic diagram of mechanical seal coupling arrangement bellows.

With reference to accompanying drawing, the mechanical seal wet type electric coal drill reducer that the utility model embodiment is provided, it comprises the tertiary gear deceleration device, casing 6, mechanical reduction gear final stage semi-hollow output shaft 2, water pipe head 16, be sleeved on the mechanical reduction gear final stage cartridge mechanical seal coupling arrangement 7 of 16 of the semi-hollow output shaft 2 on the axle shaft 2 and water pipe heads in midair, semi-hollow output shaft 2 and 7 of cartridge mechanical seal coupling arrangements prevent that the cavity top of semi-hollow output shaft 2 is provided with two water inlets along semi-hollow output shaft 2 vertical O type rubber seal 9 that sluice, be provided with a water inlet at the corresponding with it position of casing 6; Described tertiary gear deceleration device is made of motor pinion 15, duplicate gear group 18, final stage gear 11; The described cartridge mechanical seal coupling arrangement 7 that is sleeved on 16 of semi-hollow output shaft 2 on the mechanical reduction gear final stage semi-hollow output shaft 2 and water pipe heads comprises: with the axle sleeve 27 and the spring 26 of semi-hollow output shaft 2 rotations, end envelope rotating ring 22, end envelope stationary ring 21, housing 19, two water inlets that axle sleeve 27 is provided with after the assembling and open at the corresponding position of water inlet of semi-hollow output shaft 2, be provided with a water inlet at the corresponding with it position of housing 19, axle sleeve 27 is contained in the housing 19, on the axle sleeve 27 of axle sleeve 27 water inlet both sides, be set with end envelope rotating ring 22, on end envelope rotating ring 22 and its inboard axle sleeve 27, be set with nitrile rubber bellows 23, be set with adapter sleeve 25 on the bellows 23, be set with the drive sleeve 24 of stop platform 30 that the connection plush copper 32 that is provided with by drive sleeve 24 and axle sleeve 27 be provided with and axle sleeve 27 assemblings on bellows 23 and the adapter sleeve 25, be set with a spring 26 on the axle sleeve 27 that two drive sleeve are 24, the moving envelope 22 of end envelope is by spring 26 compressing drive sleeve 24, drive sleeve 24 and adapter sleeve 25 compressing bellowss 23 realize that the sealing of 27 on itself and axle sleeve and the assembling by drive sleeve 24 and axle sleeve 27 realize that it can rotate and can slide with axle sleeve 27 on axle sleeve 27, on the axle sleeve 27 in envelope rotating ring 22 outsides, two ends, be set with end envelope stationary ring 21, end envelope stationary ring 21 realizes that by nitrile rubber sealing ring 20 and housing 19 fixing assemblings the sealing of 19 of itself and housings assembles and do not rotate with axle sleeve 27, and cartridge mechanical seal coupling arrangement 7 is by pad 28, circlip for hole 29 encapsulation; Above-mentioned mechanical seal wet type electric coal drill reducer is: the key mouth 31 usefulness keys 10 that cartridge mechanical seal coupling arrangement 7 is provided with by its axle sleeve 27 are fixedly set on the final stage semi-hollow output shaft 2 of mechanical reduction gear, on 27 on the axle sleeve of the semi-hollow output shaft 2 of semi-hollow output shaft 2 water inlet both sides and cartridge mechanical seal coupling arrangement 7 with 9 sealings of O type rubber seal, prevent from vertically to sluice along semi-hollow output shaft 2, pad is gone up square type rubber seal 8 again, by casing 6 water inlets water pipe head 16 is screwed into the water inlet realization water pipe head 16 of cartridge mechanical seal coupling arrangement housing 19 and the sealed attachment of cartridge mechanical seal coupling arrangement 7, prevents that with stop pad Quan 17 the water pipe head wire inversion is loosening.Bearing 5 is fixedly mounted in the casing 6 with retaining Quan 3 and oil sealing 4 by the hole, the final stage gear 11 of tertiary gear deceleration device is fixed on the semi-hollow output shaft 2 with elasticity retaining Quan 12 by key 10 and axle, and semi-hollow output shaft 2 is installed by the bearing on bearing 5 and the electric coal drill motor 14 13.

This mechanical seal wet type electric coal drill reducer material therefor: semi-hollow output shaft 2 is No. 45 steel, and end envelope rotating ring 22 is wear-resisting phenolic resins, and end envelope stationary ring 21 is an aluminium oxide ceramics, and other parts are ordinary metallic material.

Use the electric coal drill drill bit of this mechanical seal wet type electric coal drill reducer to be installed on the electric drill by drill chuck 1.

Claims (7)

1, a kind of mechanical seal wet type electric coal drill reducer, it has a tertiary gear deceleration device that is made of motor pinion 15, duplicate gear group 18, final stage gear 11, it is characterized in that:

A, mechanical reduction gear final stage output shaft 2 are half hollow output shaft, and the cavity top of output shaft 2 is provided with water inlet, is provided with a water inlet at the corresponding with it position of casing 6,

B, the mechanical seal coupling arrangement that is sleeved on 16 of semi-hollow output shaft 2 on the mechanical reduction gear final stage semi-hollow output shaft 2 and water pipe heads is by axle sleeve 27 and spring 26 with 2 rotations of semi-hollow output shaft, end envelope rotating ring 22, end envelope stationary ring 21, housing 19 constitutes, the water inlet that axle sleeve 27 is provided with after the assembling and open at the corresponding position of water inlet of semi-hollow output shaft 2, be provided with a water inlet at the corresponding with it position of housing 19, axle sleeve 27 is contained in the housing 19, on the axle sleeve 27 of axle sleeve 27 water inlet both sides, be set with end envelope rotating ring 22, end envelope rotating ring 22 is by seal and axle sleeve 27 sealings, can and can on axle sleeve 27, slide with axle sleeve 27 rotations, be set with a spring 26 on the axle sleeve 27 that two ends envelope rotating ring is 22, on the axle sleeve 27 in envelope rotating ring 22 outsides, two ends, be set with end envelope stationary ring 21, end envelope stationary ring 21 is by sealing ring 20 and housing 19 sealing assemblings, can not be with axle sleeve 27 rotations

C, 27 on the axle sleeve of the semi-hollow output shaft 2 of semi-hollow output shaft 2 water inlet both sides and mechanical seal coupling arrangement 7 with 9 sealings of O RunddichtringO, prevent from vertically to sluice along semi-hollow output shaft 2,

D, water pipe head 16 is screwed into the sealed attachment that the water inlet of mechanical seal coupling arrangement housing 19 and sealing realize water pipe head 16 and mechanical seal coupling arrangement 7 by casing 6 water inlets.

2, mechanical seal wet type electric coal drill reducer according to claim 1, it is characterized in that: on the end of mechanical seal coupling arrangement 7 envelope rotating ring 22 and its inboard axle sleeve 27, be set with rubber bellows 23, be set with adapter sleeve 25 on the bellows 23, be set with the drive sleeve 24 of stop platform 30 that the connection plush copper 32 that is provided with by drive sleeve 24 and axle sleeve 27 be provided with and axle sleeve 27 assemblings on bellows 23 and the adapter sleeve 25, be set with a spring 26 on the axle sleeve 27 that two drive sleeve are 24, end envelope rotating ring 22 is by spring 26 compressing drive sleeve 24, drive sleeve 24 and adapter sleeve 25 compressing bellowss 23 realize that the sealing of 27 on itself and axle sleeve and the assembling by drive sleeve 24 and axle sleeve 27 realize that it can rotate and can slide with axle sleeve 27 on axle sleeve 27.

3, mechanical seal wet type electric coal drill reducer according to claim 1 is characterized in that: the end of mechanical seal coupling arrangement 7 envelope stationary ring 21 realizes that by rubber seal 20 and housing 19 fixing assemblings the sealing of 19 of itself and housings assembles and do not rotate with axle sleeve 27.

4, according to claim 2,3 described mechanical seal wet type electric coal drill reducers, it is characterized in that: the mechanical seal multi pack is put 7 and is cartridge, by pad 28, circlip for hole 29 encapsulation.

5, mechanical seal wet type electric coal drill reducer according to claim 4 is characterized in that: mechanical seal coupling arrangement 7 is to be fixedly set on the final stage semi-hollow output shaft 2 of mechanical reduction gear by the key mouth 31 usefulness keys 10 that its axle sleeve 27 is provided with.

6, mechanical seal wet type electric coal drill reducer according to claim 5 is characterized in that: be that pad is gone up square type rubber seal 8, by casing 6 water inlets water pipe head 16 is screwed into the water inlet realization water pipe head 16 of mechanical seal coupling arrangement housing 19 and the sealed attachment of mechanical seal coupling arrangement 7.

7, mechanical seal wet type electric coal drill reducer according to claim 1 is characterized in that: the wear-resisting phenolic resins of end envelope rotating ring 22 usefulness is made, and end envelope stationary ring 21 usefulness aluminium oxide ceramics are made.

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