CN203333163U - Steering driving mechanism of crane - Google Patents

Steering driving mechanism of crane Download PDF

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Publication number
CN203333163U
CN203333163U CN2013203452923U CN201320345292U CN203333163U CN 203333163 U CN203333163 U CN 203333163U CN 2013203452923 U CN2013203452923 U CN 2013203452923U CN 201320345292 U CN201320345292 U CN 201320345292U CN 203333163 U CN203333163 U CN 203333163U
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Prior art keywords
worm
output shaft
steering driving
crane
case
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CN2013203452923U
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Chinese (zh)
Inventor
李六弟
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SHANGHAI JIUNENG M&E MANUFACTURING Co Ltd
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SHANGHAI JIUNENG M&E MANUFACTURING Co Ltd
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Priority to CN2013203452923U priority Critical patent/CN203333163U/en
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Abstract

The utility model relates to a steering driving mechanism of a crane. The steering driving mechanism comprises a crane cart tyre rack and an electric drive part which can drive the crane cart tyre frame to rotate, wherein the electric drive part comprises a motor, a reducer connected with an output shaft of the motor, and a worm gear box connected with an output shaft of the reducer; the output end of the worm gear box is connected with the crane cart tyre frame and can drive the crane cart tyre frame to rotate. Compared with the prior art, the steering driving mechanism provided by the utility model has the advantages that the crane cart tyre frame adopts the motor as the main driving part, and is driven to rotate through the worm gear box after the speed is reduced through the reducer; as the electric part is adopted for directly driving the crane cart tyre frame to turn, so that relevant parts of a hydraulic push rod or an electric push rod are saved, further, the whole operation device is made smaller and more flexible, therefore, the weight of the crane is greatly reduced, and the floor space of the crane is reduced.

Description

The hoisting crane steering driving mechanism
Technical field
The utility model relates to the operating unit of a kind of mobile crane tool and loading-unload machine, particularly a kind of hoisting crane steering driving mechanism.
Background technology
The steering hardware of existing rubber tired crane, tyre revolution to form generally adopt the deflection rubber-tyred to be turned to, hydraulic pressure or electric pushrod add the structure of pivoting support and connecting rod.Its process turned to is that the push-and-pull drivening rod by hydraulic pressure or electric pushrod makes tire dolly deflection, thereby realizes turning to.Its tire operation drives the chain-types that adopt to drive more, and motor carrys out drive sprocket by plunging joint and through retarder.To twin tire formula structure, adopt motor to drive by drive axle more.Its complicated structure, huge, not only increased mechanism's weight and manufacturing cost, and the hoisting crane floor area is also relatively large, relatively clumsy when turning to and moving.
In order to reduce mechanism's weight of hoisting crane, reduce the manufacturing cost of hoisting crane, make its operating unit performance small and exquisite flexibly, need to the operating unit of rubber tired crane, turn to the type of drive of type of drive and operation to be improved.
The utility model content
The purpose of this utility model is to provide a kind of hoisting crane steering driving mechanism, makes its weight that greatly reduces hoisting crane, the floor area of dwindling hoisting crane.
For solving the problems of the technologies described above, the utility model provides a kind of hoisting crane steering driving mechanism, comprises the crane tire dolly, and described hoisting crane steering driving mechanism also comprises: drive the motorized motions parts that described crane tire dolly is rotated;
Described motorized motions parts comprise: motor, the reductor be connected with the output shaft of described motor, the worm case be connected with the output shaft of described reductor; The mouth of described worm case connects described crane tire dolly, drives described crane tire dolly and is rotated.
Embodiment of the present utility model compared with the existing technology, because the crane tire dolly adopts motor as main drive element, and drive the crane tire dolly by worm case rotated after reductor slows down, owing to having adopted electrical components directly to drive turning to of crane tire dolly, saved the associated components of hydraulic pressure or electric pushrod, make the volume of whole service device less, more flexible, thereby greatly reduce the weight of hoisting crane, dwindled the floor area of hoisting crane.
Preferably, described reductor is planetary reducer.Can reduce the rotating speed of motor by planetary reducer, thereby obtain larger torque, be rotated to drive the crane tire dolly.And to have a volume little, lightweight due to planetary reducer, load-carrying capacity is high, long service life, smooth running, and noise is low, output torque is large, the characteristics such as speed ratio is large, efficiency is high, performance safety.Have power dividing, the private characteristic of multiple tooth engagement concurrently.Make the crane tire dolly more stable when turning to.
Preferably, described worm case comprises casing, is arranged on the worm screw in described casing and is arranged on the worm-gear case output shaft in described casing; Described worm screw is connected with the output shaft of described reductor; Described worm case also comprises: be arranged in described casing and the worm gear of described worm mesh, described worm gear set is located on described worm-gear case output shaft.Owing to having adopted the transferring elements of worm case as power, and the characteristics of worm case are to have very large transmitting ratio, be the line contact between the tooth mesh flank of tooth of the worm and wheel in worm case, so its load-carrying capacity is much higher than traditional Power train, further make traveling gear there is good turning efficiency, more flexible while turning to.
Preferably, described worm case also comprises: the worm screw regulating ring that is set in described worm screw afterbody.By the worm screw regulating ring, can be adjusted high and low position, front and back position and the position, left and right of worm screw, the transmitting ratio when regulating tooth mesh between worm and wheel, thus to the crane tire dolly, the speed when turning to is controlled.
Preferably, described worm case also comprises: the worm bearing that is set in described worm screw end.Because bearing is a kind of rotation of leading axle, also can bear the part dallied on axle, and there is stronger motion characteristics, make its friction force that greatly reduces axle, therefore can reduce the power consumption consumed on friction drag.So cliding friction when it can rotate worm screw becomes friction of rolling, thereby reduce loss due to friction, guaranteed safe in operation.
Preferably, described worm case also comprises: be arranged on described casing one side, the worm screw end cap that described worm screw is fixed.Because casing one side is provided with end cap, by end cap, can position worm screw, further guaranteed the normal operation of worm screw.
Preferably, described worm case also comprises: the upper end bearing and the bottom end bearing that are set in respectively described worm-gear case output shaft end and afterbody.Because bearing is a kind of rotation of leading axle, also can bear the part dallied on axle, and there is stronger motion characteristics, make its friction force that greatly reduces axle, therefore can reduce the power consumption consumed on friction drag.So cliding friction when it can rotate worm-gear case output shaft becomes friction of rolling, thereby reduce loss due to friction, further guaranteed the normal operation of worm case.
Preferably, the afterbody of described worm-gear case output shaft also is arranged with pivoting support, and described pivoting support is fixed on the bottom of described casing.Can position worm-gear case output shaft by pivoting support, further improve the stability of crane tire dolly when turning to.
Preferably, on described worm case, also be provided with for connecting the upper flanges of crane crossbeam; Described upper flanges is fixed on the casing of described worm case, seals the upper surface of described casing, and the inner circle of described upper flanges contacted with the upper end of described worm-gear case output shaft cylindrical, forms contact surface.
Preferably, the contact surface of described upper flanges and described worm-gear case output shaft is provided with the first oil sealing; Described upper flanges is sealed by described the first oil sealing and described worm-gear case output shaft.The tail end of described worm-gear case output shaft is arranged with the second oil sealing, by described the second oil sealing and described box house, is sealed.Can increase the sealing property of worm case by the first oil sealing and the second oil sealing, avoid the components and parts generation oxidative phenomena of box house.
Described motorized motions parts are respectively equipped with two groups; And two groups of motorized motions parts are connected by described upper flanges respectively.Because the motorized motions parts are respectively equipped with two groups, to realize the twin worm drive configuration of crane tire dolly, make the crane tire dolly more stable when turning to.
The accompanying drawing explanation
The structural representation of the hoisting crane steering driving mechanism that Fig. 1 is the utility model the first embodiment;
The cutaway view that Fig. 2 is A-A place in Fig. 1;
The structural representation of the hoisting crane steering driving mechanism that Fig. 3 is the utility model the second embodiment.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, each embodiment of the present utility model is explained in detail.Yet, persons of ordinary skill in the art may appreciate that in each embodiment of the utility model, in order to make the reader understand the application better, many ins and outs have been proposed.But, even without these ins and outs and the many variations based on following each embodiment and modification, also can realize each claim of the application technical scheme required for protection.
The first embodiment of the present utility model relates to a kind of hoisting crane steering driving mechanism, as depicted in figs. 1 and 2, comprises crane tire dolly 6, drives the motorized motions parts that crane tire dolly 6 is rotated.Wherein, the motorized motions parts comprise: motor 1, the reductor 2 be connected with the output shaft of motor, the worm case 3 be connected with the output shaft of reductor.The mouth of worm case 3 connects crane tire dolly 6, drives the crane tire dolly and is rotated.
Because crane tire dolly 6 adopts motor 1 as main drive element, and after slowing down, reductor 2 rotated by worm case 3 drive crane tire dollys 6.Owing to having adopted electrical components directly to drive turning to of crane tire dolly, saved the associated components of hydraulic pressure or electric pushrod, make the volume of whole service device less, more flexible, thereby greatly reduce the weight of hoisting crane, the floor area of having dwindled hoisting crane.
In addition, in the present embodiment, reductor 2 is planetary reducer.Can reduce the rotating speed of motor by planetary reducer, thereby obtain larger torque, be rotated to drive crane tire dolly 6.And to have a volume little, lightweight due to planetary reducer, load-carrying capacity is high, long service life, smooth running, and noise is low, output torque is large, the characteristics such as speed ratio is large, efficiency is high, performance safety.Have power dividing, the private characteristic of multiple tooth engagement concurrently.Make the crane tire dolly more stable when turning to.
In addition, it is worth mentioning that, in the present embodiment, worm case 3 comprises casing 306, is arranged on the worm screw 311 in casing 306 and is arranged on the worm-gear case output shaft 302 in casing 306.Worm screw 311 is connected with the output shaft 201 of reductor.This worm case also comprises: be arranged on the worm gear 305 meshed with worm screw 311 in casing 306, worm gear 305 is set on worm-gear case output shaft 302.Owing to having adopted the transferring elements of worm case as power, and the characteristics of worm case are to have very large transmitting ratio, be the line contact between the tooth mesh flank of tooth of the worm and wheel in worm case, so its load-carrying capacity is much higher than traditional Power train, further make traveling gear there is good turning efficiency, more flexible while turning to.
And in the present embodiment, worm case 3 also comprises: the worm screw regulating ring 312 that is set in described worm screw 311 afterbodys.By worm screw regulating ring 312, can be adjusted high and low position, front and back position and the position, left and right of worm screw 311, the transmitting ratio when regulating tooth mesh between worm screw 311 and worm gear 305, thus to the crane tire dolly, the speed when turning to is controlled.
In addition, this worm case 3 also comprises: the worm bearing 310 that is set in worm screw 311 ends.Because bearing is a kind of rotation of leading axle, also can bear the part dallied on axle, and there is stronger motion characteristics, make its friction force that greatly reduces axle, therefore can reduce the power consumption consumed on friction drag.So cliding friction when it can rotate worm screw becomes friction of rolling, thereby reduce loss due to friction, guaranteed safe in operation.
In addition, this worm case 3 also comprises: be arranged on casing 306 1 sides, and the worm screw end cap 309 that described worm screw 311 is fixed.Because casing 306 1 sides are provided with end cap 309, by end cap 309, can position worm screw 311, further guaranteed the normal operation of worm screw 311.
And this worm case 3 also comprises: the upper end bearing 304 and the bottom end bearing 307 that are set in respectively described worm-gear case output shaft 302 ends and afterbody.Because bearing is a kind of rotation of leading axle, also can bear the part dallied on axle, and there is stronger motion characteristics, make its friction force that greatly reduces axle, therefore can reduce the power consumption consumed on friction drag.So cliding friction when it can rotate worm-gear case output shaft becomes friction of rolling, thereby reduce loss due to friction, further guaranteed the normal operation of worm case.
In addition, it is worth mentioning that, the afterbody of worm-gear case output shaft 302 also is arranged with pivoting support 5, and this pivoting support 5 is fixed by screws in the bottom of casing 306.Can position worm-gear case output shaft 302 by pivoting support 5, further improve the stability of crane tire dolly when turning to.
In addition, in this enforcement, also be provided with the upper flanges 301 for connecting crane crossbeam 4 on worm case 3, upper flanges 301 is fixed on the casing 306 of worm case 3, the upper surface of closed box 306.And the inner circle of upper flanges 301 is contacted with the upper end of worm-gear case output shaft 302 cylindricals, form contact surface.Be provided with the first oil sealing 303 on contact surface, upper flanges 301 is sealed with worm-gear case output shaft 302 by the first oil sealing 303.Tail end at worm-gear case output shaft 302 is arranged with the second oil sealing 308, by the second oil sealing 308, with casing 306 inside, is sealed.Can increase the sealing property of worm case by the first oil sealing and the second oil sealing, avoid the components and parts generation oxidative phenomena of box house.
The second embodiment of the present utility model relates to a kind of hoisting crane steering driving mechanism.The second embodiment is to have done further improvement on the basis of the first embodiment, the main improvement is: as shown in Figure 3, in the present embodiment, the motorized motions parts are respectively equipped with two groups, and two groups of motorized motions parts pass through respectively, and upper flanges 301 is connected.Because the motorized motions parts are respectively equipped with two groups, to realize the twin worm drive configuration of crane tire dolly 6, make the crane tire dolly more stable when turning to.。
Persons of ordinary skill in the art may appreciate that the respective embodiments described above are to realize specific embodiment of the utility model, and in actual applications, can do various changes to it in the form and details, and do not depart from spirit and scope of the present utility model.

Claims (12)

1. a hoisting crane steering driving mechanism, comprise the crane tire dolly, it is characterized in that: described hoisting crane steering driving mechanism also comprises: drive the motorized motions parts that described crane tire dolly is rotated;
Described motorized motions parts comprise: motor, the reductor be connected with the output shaft of described motor, the worm case be connected with the output shaft of described reductor; The mouth of described worm case connects described crane tire dolly, drives described crane tire dolly and is rotated.
2. hoisting crane steering driving mechanism according to claim 1, is characterized in that; Described worm case comprises casing, is arranged on the worm screw in described casing and is arranged on the worm-gear case output shaft in described casing;
Described worm screw is connected with the output shaft of described reductor;
Described worm case also comprises: be arranged in described casing and the worm gear of described worm mesh, described worm gear set is located on described worm-gear case output shaft.
3. hoisting crane steering driving mechanism according to claim 2, it is characterized in that: described worm case also comprises: the worm screw regulating ring that is set in described worm screw afterbody.
4. hoisting crane steering driving mechanism according to claim 2, it is characterized in that: described worm case also comprises: the worm bearing that is set in described worm screw end.
5. hoisting crane steering driving mechanism according to claim 2, it is characterized in that: described worm case also comprises: be arranged on described casing one side, the worm screw end cap that described worm screw is fixed.
6. hoisting crane steering driving mechanism according to claim 2, it is characterized in that: described worm case also comprises: the upper end bearing and the bottom end bearing that are set in respectively described worm-gear case output shaft end and afterbody.
7. hoisting crane steering driving mechanism according to claim 2, is characterized in that; The afterbody of described worm-gear case output shaft also is arranged with pivoting support, and described pivoting support is fixed on the bottom of described casing.
8. hoisting crane steering driving mechanism according to claim 2, is characterized in that: on described worm case, also be provided with for connecting the upper flanges of crane crossbeam;
Described upper flanges is fixed on the casing of described worm case, seals the upper surface of described casing, and the inner circle of described upper flanges contacted with the end, upper end of described worm-gear case output shaft cylindrical, forms contact surface.
9. hoisting crane steering driving mechanism according to claim 8, it is characterized in that: the contact surface of described upper flanges and described worm-gear case output shaft is provided with the first oil sealing;
Described upper flanges is sealed by described the first oil sealing and described worm-gear case output shaft.
10. hoisting crane steering driving mechanism according to claim 7, it is characterized in that: the tail end of described worm-gear case output shaft is arranged with the second oil sealing, by described the second oil sealing and described box house, is sealed.
11. according to the described hoisting crane steering driving mechanism of any one in claim 1 to 10, it is characterized in that: described reductor is planetary reducer.
12. hoisting crane steering driving mechanism according to claim 8 or claim 9 is characterized in that: described motorized motions parts are respectively equipped with two groups; And two groups of motorized motions parts are connected by described upper flanges respectively.
CN2013203452923U 2013-06-17 2013-06-17 Steering driving mechanism of crane Active CN203333163U (en)

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Application Number Priority Date Filing Date Title
CN2013203452923U CN203333163U (en) 2013-06-17 2013-06-17 Steering driving mechanism of crane

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Application Number Priority Date Filing Date Title
CN2013203452923U CN203333163U (en) 2013-06-17 2013-06-17 Steering driving mechanism of crane

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CN203333163U true CN203333163U (en) 2013-12-11

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104229626A (en) * 2013-06-17 2014-12-24 上海久能机电制造有限公司 Driving mechanism for steering of crane

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104229626A (en) * 2013-06-17 2014-12-24 上海久能机电制造有限公司 Driving mechanism for steering of crane

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