CN201012880Y

CN201012880Y - Foreign material elevator traction machine

Info

Publication number: CN201012880Y
Application number: CNU2007200354302U
Authority: CN
Inventors: 陈惠良
Original assignee: CHANGSHU JIANENG ELEVATOR ACCESSORIES Co Ltd
Current assignee: CHANGSHU JIANENG ELEVATOR ACCESSORIES Co Ltd
Priority date: 2007-03-16
Filing date: 2007-03-16
Publication date: 2008-01-30
Anticipated expiration: 2017-03-16

Abstract

An elevator tractor of small miscellany is particularly used in miscellany transportation with the carrying capacity of no more than 350Kg. The utility model belongs to the technical field for a lifting facility, which comprises a motor, a coupling, a reducer, a brake disc, a traction wheel, a hanging foot, a motor base and a brake. The utility model is characterized in that a flange motor base is formed at the terminal close to one end of the output shaft; a seat ring frame of the traction machine is formed in the box close to one side of the worm shaft by the reducer, where a motor flange seat ring is arranged. The motor is connected with the motor flange seat ring through the motor flange seat. the utility model has the advantages of that the installation of the motor is simple and convenient with no requirement for adjusting the installation height, as the horizontal installation is replaced by the vertical installation in the motor; accurate positioning can guarantee the coaxial precision between the output shaft of the motor and the worm shaft of the reducer, therefore stability and efficacy of the brake in the motor is improved; the traction machine produces no vibration, little noise and long service life.

Description

Drag for service elevator

Technical field

The utility model discloses a kind of elevator traction machine, particularly a kind of be exclusively used in transport foreign material and load carrying ability be no more than the small-sized drag for service elevator of 350Kg, belong to the lift installation technical field.

Background technology

Load carrying ability in the prior art is no more than the small-sized drag for service elevator of 350Kg, the known F100K of industry for example, F120K series, its structure is by Fig. 1 clear showing, mainly comprise motor 6, reductor 4 by brake disc and plunging joint and motor 6 transmissions binding, traction sheave 3 with reductor 4 bindings, hub setting is at the power take-off shaft axle head of reductor 4 and use the hanging feet 2 that traction sheave 3 is play supporting role, be arranged on reductor 4 drop-gear box bottom support 1 and be used for traction sheave 3 is rotated the drg of braking 5, wherein said motor 6 is to be installed on the tractor stand 61 by motor frame 63, tractor stand 61 is arranged on the casing of reductor 4 and is positioned at the below of motor 6, also is provided with the strut bar 62 that is used for supporting motor 6 in a side of tractor stand 61.The mounting means of above-mentioned motor 6 is horizontally-arranged, be that motor 6 is horizontally-arranged on the tractor stand 61, and adjust the setting height(from bottom) of motor 6 by motor frame 63, but find in actual use: this mounting means is to be difficult to the worm shaft of the output shaft of assurance motor 6 and reductor 4 on same axial line for the horizontal assembling of small-sized drag for service elevator, promptly coaxial precision between the two has error, crossing conference when error causes complete machine to produce vibrations in the course of the work, and can be with noise, so that influence the product design of towing machine, and, also make the position of drg and brake disc have uncertainty, the braking contact surface changes, cause the braking gap of drg that a left side is arranged, right asymmetry, off centering and influence the braking effect of towing machine; In addition, owing to coaxial low precision, also can reduce the effect of towing machine.

Summary of the invention

Task of the present utility model is to provide a kind of drag for service elevator, coaxial precision, the insensitivity that improves towing machine and effect, the reduction noise between the output shaft that it can guarantee motor and the worm shaft of reductor and prolong service life of complete machine.

Task of the present utility model is finished like this, a kind of drag for service elevator, it comprises the motor 6 of tool output shaft 19, with output shaft 19 bonded assembly plunging joints 21, the reductor 4 of tool worm shaft 28, one end is connected with worm shaft 28, and the other end and plunging joint 21 bonded assembly brake discs 23, traction sheave 3 with reductor 4 bindings, hub setting is at the power take-off shaft axle head of reductor 4 and use the hanging feet 2 that traction sheave 3 is play supporting role, be arranged on reductor 4 bottom half support 1 and be used for traction sheave 3 is rotated the drg of braking 5, be characterized in: described motor 6 is formed with a motor flange seat 17 in the end near output shaft 19 1 ends, and described reductor 4 is being formed with a towing machine seat ring frame 10 near on the casing of worm shaft 28 1 sides, be provided with a motor flange seat ring 14 on towing machine seat ring frame 10, described motor 6 is fixed on the motor flange seat ring 14 by motor flange seat 17.

The cross sectional shape of motor flange seat ring 14 described in the utility model in the form of a ring, the cross sectional shape of corresponding motor flange seat 17 is plate-like, described motor flange seat 17 embeds in the motor flange seat ring 14 of towing machine seat ring frame 10 by the narrow tooth mouth that contracts 32 of its edge part, and is fixing by first screw 18 between the two.

The utility model is formed with the brake disc chamber 25 that is used for ccontaining brake disc 23 in the centre of described towing machine seat ring frame 10.

The utility model is respectively arranged with a pair of brake control lever axle bed 27 in the and arranged on left and right sides of described motor flange seat ring 14.

Motor flange seat ring 14 described in the utility model is located on the outboard end of towing machine seat ring frame 10, combine as a whole by a stay bearing plate 33 between the two, this stay bearing plate 33 hang down be located on the support 1 and with axially being consistent of worm shaft 28.

Drg 5 described in the utility model comprises a pair of pull back spring 11, a pair of spring pull bar 9, a pair of brake control lever 7, a pair of brake strip 8 and two electromagnetic valves 24, described a pair of pull back spring 11 is located at respectively on a pair of spring pull bar 9, a pair of spring pull bar 9 is installed in the top of towing machine seat ring frame 10 respectively by support, a pair of brake control lever 7 is positioned at the both sides of towing machine seat ring frame 10, wherein the hub setting of portion's difference is on a pair of brake control lever axle bed 27, and on, the bottom respectively with a pair of spring pull bar 9, the a pair of connecting screw rod 26 that is arranged on two electromagnetic valves 24 connects, a pair of brake strip 8 is located at respectively on a pair of brake control lever 7 symmetrically, and corresponding with brake disc 23, two electromagnetic valves 24 are separately fixed at the both sides of stay bearing plate 33.

The utility model also is provided with pair of separated spike 12 on described drg 5, articulate by bearing pin between the pair of separated spike 12, and be installed on a pair of brake control lever 7 of drg 5 by second screw 13 respectively.

The utility model is formed with cushion rubber hole 15 on described brake disc, be provided with buffering apron 16 in the cushion rubber hole 15.

Buffering apron 16 described in the utility model is an elastic body.

Elastic body described in the utility model is any one in rubber elastomer or polyethers, polyester elastic body or the thermoplastic elastomer.

The utility model be because after will being applicable to that motor on small-sized (load carrying ability is not more than 350Kg) drag for service elevator changes vertical installation into by original horizontal installation, one of advantage, need not the setting height(from bottom) of motor is adjusted, so simple installation again; Two, the location is correct, the coaxial precision between the output shaft that can guarantee motor and the worm shaft of reductor, thus can improve the insensitivity and the effect of towing machine; Three, towing machine operates steadily at work and shockproof, noise is low, long service life.

Description of drawings

Fig. 1 is the structure diagram of the utility model prior art.

Fig. 2 is an example structure sketch of the present utility model.

Among the figure: 1. support, 2. hanging feet, 3. traction sheave, 4. reductor 5. drgs, 6. motor, 61. tractor stand, 62. strut bar, 63. motor frame, 7. brake control lever, 8. brake strip, 9. spring pull bar, 10. towing machine seat ring frame, 11. pull back spring, 12. separation spike, 13. second screw, 14. motor flange seat ring, 15. cushion rubber hole, 16. buffering apron, 17. motor flange seat, 18. first screw, 19. output shaft, 20. first axis hole, 21. plunging joint, 22. second axis hole, 23. brake disc, 24. electromagnetic valve, 25. brake disc chamber, 26. connecting screw rod, 27. brake control lever axle bed, 28. worm shaft, 29. axle bed, 30. third axle hole, 31. little axle, 32. tooth mouth, 33. stay bearing plate.

The specific embodiment

Below to the detailed description of embodiment, will help to understand the utility model essence by the applicant more, and will make advantage of the present utility model and good effect more become bright and clear, but embodiment should not constitute any restriction to the utility model scheme.

See also Fig. 2, motor 6 described in the utility model is provided with a motor flange seat 17 in the end expansion near output shaft 19 1 ends, the cross sectional shape of motor flange seat 17 is plate-like, output shaft 19 is positioned at the center position of vertical plate-like motor flange seat 17, and narrow shortening into is useful on the tooth mouth 32 that mat plays the role of positioning with the tight scarf of inner ring of motor flange seat ring 14 in the edge of vertical plate-like motor flange seat 17.Reductor 4 described in the utility model is forming a towing machine seat ring frame 10 near on the casing of worm shaft 28 1 sides, the centre of towing machine seat ring frame 10 is formed with brake disc chamber 25, the worm shaft 28 of the reductor 4 that is equipped with brake disc 23 in the brake disc chamber 25 and is used for cooperating and the axle bed 29 that is used for fixing screw shaft 28 with brake disc 23, on the outboard end of towing machine seat ring frame 10, be provided with a motor flange seat ring 14, left side at motor flange seat ring 14, right both sides have formed a pair of brake control lever axle bed 27, consistent and the vertical stay bearing plate of being located on the support 1 33 interfixes and combines as a whole motor flange seat ring 14 with worm shaft 28 directions by one simultaneously with towing machine seat ring frame 10, its stay bearing plate 33 is simultaneously again as the permanent seat of two electromagnetic valves 24 of drg 5, the cross section of motor flange seat ring 14 forms in the form of a ring, its size should match with the size of motor flange seat 17, the center position that axially aligns ring-type motor seat ring 14 of the worm shaft 28 on the reductor 4.The utility model is formed with cushion rubber hole 15 on described brake disc 23, be provided with buffering apron 16 in the cushion rubber hole 15, buffering apron 16 is an elastic body, and this elastic body can be a rubber elastomer, also can be polyethers, polyester elastic body, can also be thermoplastic elastomer.One end of brake disc 23 is connected with worm shaft 28 by second axis hole 22, and the other end is in transmission connection by the end of buffering apron 16 with plunging joint 21, and the other end of plunging joint 21 is connected with the output shaft 19 of motor 6 by first axis hole 20 in the middle of it.Traction sheave 3 described in the utility model is fixed on the power take-off shaft of reductor 3, and the power take-off shaft axle head outside traction sheave 3 also is installed with a hanging feet 2 that is used to support traction sheave 3, and the lower end of hanging feet 2 is fixed on the support 1.

Please continue referring to Fig. 2, drg 5 described in the utility model comprises a pair of pull back spring 11, a pair of spring pull bar 9, a pair of brake control lever 7, two electromagnetic valves 24 of a pair of brake strip 8 and difference tool connecting screw rod 26, described a pair of pull back spring 11 is set in respectively on a pair of spring pull bar 9, a pair of spring pull bar 9 is installed in the top of towing machine seat ring frame 10 respectively by support, a pair of brake control lever 7 is positioned at the both sides of towing machine seat ring frame 10, wherein the 30 back hub settings of third axle hole are being passed on a pair of brake control lever axle bed 27 by little axle 31 respectively by portion, and on, the bottom is respectively by nut and a pair of spring pull bar 9, the a pair of connecting screw rod 26 that is arranged on two electromagnetic valves 24 connects, a pair of brake strip 8 is installed in the inboard of a pair of brake control lever 7 respectively symmetrically, and corresponding with the brake disc 23 in the brake disc chamber 25, two electromagnetic valves 24 are fixed on the both sides of stay bearing plate 33.The utility model also has additional pair of separated spike 12 on described drg 5, pair of separated spike 12 passes through 13 hub settings of second screw respectively on a pair of brake control lever 7 of drg 5, form by bearing pin is hinged between the two, like this, when upwards pulling separation spike 12, can drive the upper end of a pair of secondary swing arm 7 to outer displacement, a pair of brake strip 8 is separated with brake disc 23, and when pulling separation spike 12 downwards, the upper end that can drive a pair of secondary swing arm 7 makes a pair of brake strip 8 and brake disc 23 obvolvents together to intrinsic displacement.The effect of pair of separated spike 12 is to be convenient to the transportation of towing machine and maintenance, promptly works as towing machine in transportation, when needing a pair of brake strip 8 and brake disc 23 obvolvents together, at this moment can realize by pulling separation spike 12 downwards; And when the towing machine want of repair is safeguarded, need a pair of brake strip 8 to separate with brake disc 23, at this moment can realize by pulling separation spike 12 downwards.Need to prove: because a pair of brake control lever 7 is controlled by an electromagnetic valve 24 respectively, therefore be toward each other independently between them, when the brake control lever 7 of a corresponding side was lost efficacy, and the electromagnetic valve 24 of side and corresponding brake control lever 7 work of should still remaining valid in addition.

The utility model is to come work like this, energized, make drg 5 be in the energising mode of operation by master cock, a pair of brake control lever 7 is opened, motor 6 rotates simultaneously, drive plunging joint 21, brake disc 23 and worm shaft 28, worm gear running by motor 6, again transmission of power is given the power take-off shaft of reductor 4, finally drive traction sheave 3 rotations by power take-off shaft, thereby it is up to drive lift car by the rope on the traction sheave 3, when cage operation during, make motor 6 stalls by the actuating master cock, simultaneously by drg 5 brakings to predetermined a certain destination.Braking principle: when motor 6 outages, electromagnetic valve 24 dead electricity of drg 5, a pair of secondary swing arm 7 is by the effect locking brake disc 23 of pull back spring 11 elastic force, by brake strip 8 on a pair of secondary swing arm 7 and the friction force between the brake disc 23, output shaft 19 is stopped operating rapidly, the power take-off shaft and the traction sheave 3 of worm shaft 28, worm gear, reductor are fixed on each position, thereby make lift car stably be stopped layer.Descending when more up only motor 6 make reverse direction operation, its process and in like manner up.

Claims

1. drag for service elevator, it comprises the motor (6) of tool output shaft (19), with output shaft (19) bonded assembly plunging joint (21), the reductor (4) of tool worm shaft (28), one end is connected with worm shaft (28), and the other end and plunging joint (21) bonded assembly brake disc (23), traction sheave (3) with reductor (4) binding, hub setting is at the power take-off shaft axle head of reductor (4) and use the hanging feet (2) that traction sheave (3) is play supporting role, be arranged on reductor (4) bottom half support (1) and be used for traction sheave (3) is rotated the drg (5) brake, it is characterized in that described motor (6) is formed with a motor flange seat (17) in the end near output shaft (19) one ends, and described reductor (4) is being formed with a towing machine seat ring frame (10) near on the casing of worm shaft (28) one sides, be provided with a motor flange seat ring (14) on towing machine seat ring frame (10), described motor (6) is fixed on the motor flange seat ring (14) by motor flange seat (17).

2. drag for service elevator according to claim 1, the cross sectional shape that it is characterized in that described motor flange seat ring (14) in the form of a ring, the cross sectional shape of corresponding motor flange seat (17) is plate-like, described motor flange seat (17) embeds in the motor flange seat ring (14) of towing machine seat ring frame (10) by the narrow tooth mouth (32) that contracts of its edge part, and is fixing by first screw (18) between the two.

3. drag for service elevator according to claim 1 is characterized in that being formed with in the centre of described towing machine seat ring frame (10) the brake disc chamber (25) that is used for ccontaining brake disc (23).

4. drag for service elevator according to claim 1 is characterized in that being respectively arranged with a pair of brake control lever axle bed (27) in the and arranged on left and right sides of described motor flange seat ring (14).

5. drag for service elevator according to claim 1, it is characterized in that described motor flange seat ring (14) is located on the outboard end of towing machine seat ring frame (10), combine as a whole by a stay bearing plate (33) between the two, this stay bearing plate (33) hang down be located at that support (1) is gone up and with axially being consistent of worm shaft (28).

6. drag for service elevator according to claim 1, it is characterized in that described drg (5) comprises a pair of pull back spring (11), a pair of spring pull bar (9), a pair of brake control lever (7), a pair of brake strip (8) and two electromagnetic valves (24), described a pair of pull back spring (11) is located at respectively on a pair of spring pull bar (9), a pair of spring pull bar (9) is installed in the top of towing machine seat ring frame (10) respectively by support, a pair of brake control lever (7) is positioned at the both sides of towing machine seat ring frame (10), wherein the hub setting of portion's difference is on a pair of brake control lever axle bed (27), and on, the bottom respectively with a pair of spring pull bar (9), the a pair of connecting screw rod (26) that is arranged on two electromagnetic valves (24) connects, a pair of brake strip (8) is located at respectively on a pair of brake control lever (7) symmetrically, and corresponding with brake disc (23), two electromagnetic valves (24) are separately fixed at the both sides of stay bearing plate (33).

7. according to claim 1 or 6 described drag for service elevator, it is characterized in that on described drg (5), also being provided with pair of separated spike (12), articulate by bearing pin between the pair of separated spike (12), and be installed on a pair of brake control lever (7) of drg (5) by second screw (13) respectively.

8. drag for service elevator according to claim 1 is characterized in that being formed with cushion rubber hole (15) on described brake disc, be provided with buffering apron (16) in cushion rubber hole (15).

9. drag for service elevator according to claim 8 is characterized in that described buffering apron (16) is an elastic body.

10. drag for service elevator according to claim 9 is characterized in that described elastic body is any one in rubber elastomer or polyethers, polyester elastic body or the thermoplastic elastomer.