CN201513480U

CN201513480U - Limiting type gear coupling

Info

Publication number: CN201513480U
Application number: CN2009202193291U
Authority: CN
Inventors: 崔会军; 贾东升; 任进贤; 赵举; 李庆家; 杨雪峰
Original assignee: China Coal Zhangjiakou Coal Mining Machinery Co Ltd
Current assignee: China Coal Zhangjiakou Coal Mining Machinery Co Ltd
Priority date: 2009-09-29
Filing date: 2009-09-29
Publication date: 2010-06-23
Anticipated expiration: 2019-09-29

Abstract

The utility model relates to a gear coupling assorted with a coal mine working face scraper conveyor, in particular to a limiting type gear coupling. The gear coupling is used for linking a chain wheel shaft and a speed reducer so as to transmit power from the speed reducer to the chain wheel shaft for driving a chain wheel to rotate, thus driving a scraping plate and a chain to motion towards the given direction, and achieving the purpose of transporting coals. The traditional gear coupling is limited only by a locating bolt, and as the transmitting torque of the gear coupling is very large, a half coupling can generate axial movement, therefore, the locating bolt is easy to be cut off in use. As for the gear coupling, baffle covers are arranged on the shaft ends of the chain wheel shaft and a spline shaft, so as to strengthen the limiting, so that the axial movement can be greatly reduced, the locating bolt can avoid to be cut off, and the reliability of the gear coupling can be enhanced. A closed lubricating circuit is also arranged inside the gear coupling, effective lubrication to all meshing parts can be ensured by oil injection, and the service life of the limiting gear coupling can be improved.

Description

Limit-type gear coupling

Technical field

The utility model relates to the matched gear coupling of coal mine work area scraper conveyor, and a kind of specifically limit-type gear coupling is used between retarder and the sprocket shaft transferring power stably.

Background technique

Colliery mining face under mine scraper conveyor gear coupling, requiring has enough linking intensities and good reliability of positioning, guarantees between reducer shaft and the sprocket shaft transferring power stably.Traditional gear coupling is spacing by positioning screwn, and its shortcoming is: half-coupling does not have fixing device, during rotation axial float can take place, and positioning screwn is easy to be cut off by the half-coupling at two ends bump, causes and can't reliably locate.Positioning screwn is changed in the down-hole, and not only workload is big, also influences ordinary production.

Summary of the invention.

The purpose of this utility model provides a kind of limit-type gear coupling, in use can't reliably locate to solve the existing equipment gear coupling, and holding down bolt is easily cut off, the maintenance complicated problems.

The technical solution adopted in the utility model is: limit-type gear coupling comprises sprocket shaft, internal tooth casing, half-coupling A and half-coupling B, splined shaft, positioning screwn, also is made up of door A and door B, lubricating cup, blanking cover A and blanking cover B; Half-coupling A is connected the right-hand member of sprocket shaft by spline, and half-coupling B is connected the left end of splined shaft by spline; Door A left side boss cooperates with sprocket shaft right-hand member shrinkage pool and by being bolted on the sprocket shaft right side; Door B the right boss cooperates with splined shaft left end shrinkage pool and by bolt, door B cylindrical is put into half-coupling B rim of the mouth and passed through bolt; The gear engagement of internal tooth casing and half-coupling A, half-coupling B also is linked together two half-couplings, and internal tooth casing left end rim of the mouth closely contacts with blanking cover A outer round surface, and with the sealing of O RunddichtringO, blanking cover A is by the left end of screw at half-coupling A; Half-coupling B middle part cylindrical closely contacts with blanking cover B internal circular surfaces, and with the sealing of O RunddichtringO, blanking cover B is by being bolted on the internal tooth casing right-hand member; Positioning screwn is fixed on two internal tooth casings between the half-coupling;

Lubricating cup is installed in internal tooth casing and keeps right on the end position, and the oil circuit below the lubricating cup is communicated with blanking cover B left side groove, and groove communicates with the gear connection place of internal tooth casing and half-coupling B.

The utility model working principle is: when in the gear coupling work during transferring power, if sprocket shaft and splined shaft drive two half-couplings and produce axial float, this moment, the door of two half-coupling ends came in contact earlier and spacing, make that positioning screwn is unlikely to be cut off, reached reliable spacing purpose.By lubricating cup oiling in gear coupling, make at interior its inner lubricating loop that forms, lubricated each meshing part improves working life.

The beneficial effect of the utility model position limited gear coupling: when realizing that gear coupling connects position-limiting action, newly-designed axle head door can limit the axial float between sprocket shaft and the retarder accurately and reliably, guaranteed that each joining shaft accurately locatees, avoided positioning screwn to be cut off.New structure also in the gear coupling indoor design lubricating loop of a sealing, can be lubricated gear coupling easily, effectively protected inner each meshing part of gear coupling, the working life of greatly having improved gear coupling.

Description of drawings

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

Fig. 1 is the schematic representation of the limit-type gear coupling that the utility model proposes.

Fig. 2 is the schematic representation of the half-coupling A of the sprocket wheel axle head that the utility model proposes.

Fig. 3 is the structural representation of the blanking cover A that the utility model proposes.

Fig. 4 is the structural representation of the door A that the utility model proposes.

Fig. 5 is the internal tooth casing structural representation that the utility model proposes.

Fig. 6 is the blanking cover B structural representation that the utility model proposes.

Fig. 7 is the door B structural representation that the utility model proposes.

Fig. 8 is the half-coupling B structural representation that the utility model proposes.

Embodiment:

Among the figure: 1, sprocket shaft, 2, half-coupling A, 3, bolt, 4, door A, 5, screw, 6, blanking cover A, 7, O RunddichtringO, 8, internal tooth casing, 9, positioning screwn, 10, bolt, 11, lubricating cup, 12, blanking cover B, 13, bolt, 14, the O RunddichtringO, 15, door B, 16, half-coupling B, 17, bolt, 18, splined shaft.

Limit-type gear coupling comprises sprocket shaft 1, internal tooth casing 8, half-coupling A2 and half-coupling B16, splined shaft 18, positioning screwn 9, also is made up of door A4 and door B15, lubricating cup 11, blanking cover A6 and blanking cover B12; Half-coupling A2 is connected the right-hand member of sprocket shaft 1 by spline, and half-coupling B16 is connected the left end of splined shaft 18 by spline; Door A4 left side boss cooperates with sprocket shaft 1 right-hand member shrinkage pool and is fixed on sprocket shaft 1 right side by bolt 3; Door B15 the right boss cooperates with splined shaft 18 left end shrinkage pools and is fixing by bolt 17, and door B15 cylindrical is put into half-coupling B16 rim of the mouth and fixing by bolt 10; Internal tooth casing 8 is linked together with the gear engagement of half-coupling A2, half-coupling B16 and two half-couplings, internal tooth casing 8 left end rims of the mouth closely contact with blanking cover A6 outer round surface, with 7 sealings of O RunddichtringO, blanking cover A6 is installed in the left end of half-coupling A2 by screw 5; Half-coupling B16 middle part cylindrical closely contacts with blanking cover B12 internal circular surfaces, and with 14 sealings of O RunddichtringO, blanking cover B12 is fixed on internal tooth casing 8 right-hand members by bolt 13; Positioning screwn 9 is fixed on two internal tooth casings 8 between the half-coupling;

Lubricating cup 11 is installed in internal tooth casing 8 and keeps right on the end position, and the oil circuits below the lubricating cup 11 are communicated with blanking cover B12 left side groove, and groove communicates with the gear connection place of internal tooth casing 8 and half-coupling B16.

During installation, a half-coupling A2 and B16 respectively are installed on sprocket shaft 1 and splined shaft 18, and in end that sprocket shaft 1 is connected with splined shaft 18 with bolt 3,10 and 17 fixedly door 4 and B15 respectively, internal tooth casing is installed on two half-couplings, lubricating cup is installed on internal tooth casing, with bolt one blanking cover A6 and B12 is installed respectively in the two half-couplings outside, prevents half-coupling play laterally, assembling and positioning screw 9 on internal tooth casing 8.

Claims

1. limit-type gear coupling: comprise sprocket shaft (1), internal tooth casing (8), half-coupling A (2) and half-coupling B (16), splined shaft (18) and positioning screwn (9), it is characterized in that: also form by door A (4) and door B (15), lubricating cup (11), blanking cover A (6) and blanking cover B (12); Half-coupling A (2) is connected the right-hand member of sprocket shaft (1) by spline, and half-coupling B (16) is connected the left end of splined shaft (18) by spline; Door A (4) left side boss cooperates with sprocket shaft (1) right-hand member shrinkage pool and is fixed on sprocket shaft (1) right side by bolt (3); Door B (15) the right boss cooperates with splined shaft (18) left end shrinkage pool and is fixing by bolt (17), and door B (15) cylindrical is put into half-coupling B (16) rim of the mouth and fixing by bolt (10); Internal tooth casing (8) is linked together with the gear engagement of half-coupling A (2), half-coupling B (16) and two half-couplings, internal tooth casing (8) left end rim of the mouth closely contacts with blanking cover A (6) outer round surface, with O RunddichtringO (7) sealing, blanking cover A (6) is fixed on the left end of half-coupling A (2) by screw (5); Half-coupling B (16) middle part cylindrical closely contacts with blanking cover B (12) internal circular surfaces, and with O RunddichtringO (14) sealing, blanking cover B (12) is fixed on the internal tooth casing (8) by bolt (13); Positioning screwn (9) is fixed on two internal tooth casings (8) between the half-coupling;

Lubricating cup (11) is installed in internal tooth casing (8) and keeps right on the end position, and the oil circuit below the lubricating cup (11) is communicated with blanking cover B (12) left side groove, and groove communicates with the gear connection place of internal tooth casing (8) and half-coupling B (16).