CN100586835C - Electric gourd and lorry using the same - Google Patents
Electric gourd and lorry using the same Download PDFInfo
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- CN100586835C CN100586835C CN200810126551A CN200810126551A CN100586835C CN 100586835 C CN100586835 C CN 100586835C CN 200810126551 A CN200810126551 A CN 200810126551A CN 200810126551 A CN200810126551 A CN 200810126551A CN 100586835 C CN100586835 C CN 100586835C
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Abstract
The invention discloses an electric hoist and a railway truck that adopts the electric hoist. Aiming at the problem that the existing electric hoist has poor climbing capacity, the electric hoist of the invention includes a travel carriage, a traveling electric motor, a driving gear and a rack that engages with each other; the driving gear is fixedly connected with the wheel axle of the travelingwheel and rotates coaxially, the rack is fixedly arranged on the upper surface of the lower edge of the steel I-beam along the length direction of the steel beam. As the gear is driven by the electricmotor, then the travel carriage is actuated along the steel I-beam to finish the traveling operation. During the travel of the carriage, the traveling wheel is designed to carry load, the transmission mechanism of the gear rack is designed to provide driving power, and the climbing capacity can reach 20 permillage. Preferably, a regulation electric motor and a corresponding driving mechanism areadded to control the engagement and disengagement of the gear rack; the gear rack disengagement mode is adopted under the normal lifting conditions to improve the running speed; and the gear rack engagement mode is adopted when the gradient is relatively higher.
Description
Technical field
The present invention relates to the elevator machinery technical field, be specifically related to a kind of electric block.
Background technology
Electric block mainly is made up of electrical motor, transmission device and reel or sprocket wheel, has compact conformation, from heavy and light, and characteristics simple to operate.As being widely used in material handling occasions such as machine manufacture, metallurgical mine, communications and transportation, petrochemical complex, light industry, warehouse in order to the small-sized weight-lifting equipment that promotes weight.
As shown in Figure 1, the figure shows the integral structure scheme drawing of existing electric block.As shown in the drawing, walking dolly 100 is served as reasons and is placed the left and right split-type structural of steel I-beam 200 both sides to constitute, the drive wheel 300 that the setting of one side cooperates with described steel I-beam 200 lower edges, its opposite side is provided with the road wheel 400 that cooperates with described steel I-beam 200 lower edges; Place the electrical motor 500 on the walking dolly 100 to drive described drive wheel 300, described drive wheel 300 by and steel I-beam 200 between friction force realize the traveling action.During the handling operating mode, walking dolly 100 is walked on the lower edge of steel I-beam, is finished by reel 600 and suspension hook 700 and hangs the action industry.
Because between drive wheel 300 and the steel I-beam 200 is friction of rolling, existing electric block exists the hill climbing ability problem of smaller, and hill climbing ability only is about 2 ‰ during the load walking.Particularly, for boat-carrying hoisting crane, crane truck, when carrying out the lift heavy operation, hull, car body are understood unbalance loading usually and are produced bigger inclination angle, therefore, adopt the general-duty electric block easily to produce slide car phenomenon, even can't realize the traveling action.Equally, excessive for the crane in bridge type of large span as deflection span ratio, be subjected to the puzzlement of electric block climbing problem too.
In view of this, demand developing a kind of electric block urgently, guarantee that walking dolly is along the normally at the uniform velocity climbing operation of steel I-beam track with big hill climbing ability.
Summary of the invention
At above-mentioned defective, the technical matters that the present invention solves is, a kind of electric block is provided.
Electric block provided by the invention, comprising can be along the walking dolly of the lower edge traveling of steel I-beam; Described walking dolly internal fixation is provided with the running motor that drives walking wheel; Also comprise driven wheel, tooth bar, adjusting motor and gear drive, described driven wheel is captiveed joint and coaxial rotation with the wheel shaft of described walking wheel, described tooth bar is fixedly installed on along the length direction of steel I-beam on the upper surface of lower edge of described steel I-beam, described driven wheel and the described tooth bar composition rack and pinion drive mechanism that is meshing with each other; Described adjusting motor is fixedly installed on described running motor one side in the walking dolly; The chopped-off head gear of described gear drive is captiveed joint and coaxial rotation with described adjusting motor output shaft; The final stage outer gear sleeve is contained in forms screw mandrel screw transmission device on the wheel shaft of walking wheel, and final stage external gear both sides are provided with the axial limiting parts; Described walking wheel is sleeved on the wheel shaft, and adopts key to be connected between described walking wheel and the wheel shaft, the wheel shaft of walking wheel and walking wheel coaxial rotation and slide relative vertically; Adopt key to be connected between the wheel shaft of walking wheel and the output shaft of described running motor, the wheel shaft of walking wheel and running motor output shaft coaxial rotation and slide relative vertically.
Preferably, along the length direction of steel I-beam, described tooth bar form by multistage and the profile of tooth of junction complete.
Preferably, the number of teeth of described driven wheel is 17～20.
Preferably, the output shaft of described adjusting motor and the output shaft of described running motor be arranged in parallel, and described gear drive is a pair of external meshing tooth.
Preferably, adopt spline to be connected respectively between the wheel shaft of described walking wheel and described walking wheel and the running motor output shaft.
Electric block provided by the invention compared with prior art, technical solution of the present invention is simple in structure, reliable, have additional rack and pinion drive mechanism, its middle gear and walking wheel coaxial rotation, described tooth bar is arranged on the running face of steel I-beam, during use, drive this gear by running motor and rotate, and then the drive walking dolly is finished the traveling action along steel I-beam.In this programme, walking wheel is used for carrying, and rack and pinion drive mechanism is used to realize power driven, adopts this structure can satisfy 20 ‰ hill climbing ability.In addition, in this programme, also be provided with and regulate engagement, renunciative function between the described driving gear wheel and rack,, adopt rack-and-gear to break away from mode, improve road speed in normal handling operating mode; In the bigger operating mode of the gradient, adopt the rack-and-gear engagement system.Therefore, improved the maneuverability of electric block greatly.
Electric block provided by the invention is specially adapted to, material handling occasions such as machine manufacture, metallurgical mine, communications and transportation, petrochemical complex, light industry, warehouse.
The present invention also provides a kind of railway truck, is provided with foregoing electric block in the compartment, has the function of handling goods voluntarily; In unfavorable operating mode, car body can produce 15 ‰ angle of inclination, and steel I-beam tilts simultaneously with car body, and electric block of the present invention can overcome the side force that girder steel tilts to produce, and guarantees that the walking dolly band carries along normally climbing operation evenly of steel I-beam.
Description of drawings
Fig. 1 is the structural representation of existing electric block;
Fig. 2 a and Fig. 2 b are respectively the front view and the lateral plans of first kind of described electric block of embodiment of the present invention;
Fig. 3 a and Fig. 3 b are respectively the front view and the lateral plans of second kind of described electric block of embodiment of the present invention;
Fig. 4 a and Fig. 4 b show two kinds of control positioies described in second kind of embodiment of the present invention, and wherein, Fig. 4 a is an engagement, and Fig. 4 b is a disengaged position.
Among Fig. 2-Fig. 4:
The specific embodiment
Specify present embodiment below in conjunction with Figure of description.
See also Fig. 2 a, this figure is the front view of electric block of the present invention.
Shown in Fig. 2 a, present embodiment mainly is made up of walking dolly 1, running motor 2, roll device 3, cargo hook gear 4 and rack and pinion drive mechanism along the steel I-beam traveling, wherein, described walking dolly 1 is that left and right two separation structures are formed, be respectively arranged with support wheel 5 and walking wheel 6 on the walking dolly 1 of and arranged on left and right sides, described running motor 2 is the propulsion source of dolly traveling; Roll device 3 and cargo hook gear 4 are successively set on the below of described walking dolly 1, are used to finish the ascending, descending operation of weight.In order to describe the concrete structure of electric block of the present invention in detail, please in the lump referring to Fig. 2 b, this figure is the birds-eye view of electric block of the present invention.
Shown in Fig. 2 b, described support wheel 5 and walking wheel 6 are separately positioned on the both sides of walking dolly 1, and wherein said walking wheel 6 is captiveed joint with the output shaft of described running motor 2.Special version be, major parts such as walking dolly 1, roll device 3, cargo hook gear 4 are not inventive point of the present invention places, those of ordinary skill in the art can realize based on prior art, does not elaborate its concrete composition and annexation so give in the present embodiment.
Wherein, in the described rack and pinion drive mechanism, tooth bar 7 is fixedly installed on along the length direction of steel I-beam on the upper surface of lower edge of described steel I-beam 18, and driven wheel 8 is captiveed joint and coaxial rotation with the wheel shaft 9 of described walking wheel 6.That is to say that described walking dolly 1 is during along steel I-beam traveling mode of operation, the takeoff output of described running motor 2 is to walking wheel 6 and driven wheel 8.In this mechanism, walking wheel 6 is used for carrying, and the rack and pinion drive mechanism that described driven wheel 8 and tooth bar constitute is used to realize power driven.
Than prior art, walking dolly is to realize by the friction force that produces between walking wheel and the girder steel upper edge along the walking of steel I-beam in the prior art, is subjected to the influence of friction coefficient between walking wheel and the girder steel upper edge, and its hill climbing ability only is about 2 ‰.And in the technical solution of the present invention, adopt driven wheel tooth bar mechanism to finish walking and drive, hill climbing ability can reach about 20 ‰.
In fact, for the less electric block of carrying, can not use walking wheel 6 in this programme, the load at traveling wheel shaft 9 places is only born by driven wheel 8, to save manufacturing cost.Certainly,, use walking wheel 6 to be carried as preferred plan, to guarantee steady, the reliability of complete machine operation for the bigger electric block of carrying.
Electric block provided by the present invention is applicable to crane in bridge type, boat-carrying hoisting crane, the crane truck of large span.Need to prove, along the length direction of girder steel, described tooth bar 7 form by multistage and the profile of tooth of junction complete, that is to say that for the long use occasion of orbit, described tooth bar 7 can be assembled into one after the segmental machining, be convenient to profile of tooth machine up, cut down finished cost.In fact, from saving the angle of cost, can be according to concrete use occasion, described tooth bar 7 only is set on the bigger upper edge of steel I-beam inclination and distortion, like this, walking dolly only has the traveling of a segment distance to overcome the resistance that gear, rack driven produce in omnidistance traveling process, can improve the operating efficiency of complete machine.
Further, be subjected to structural limitations, it is comparatively reasonable that driven wheel 8 is chosen 17～20 teeth.The modulus of this gear need carry out the force analysis of gear according to the size of hill climbing ability, checks its intensity, flank of tooth contact fatigue strength and tooth root bending fatigue resistance behind the primary election modulus, to guarantee safe and reliable operation.
Be understandable that the profile of tooth of described driven wheel 8 and tooth bar 7 can adopt involute gear profile, cycloidal tooth profile and arc toothed, use needs all in the protection domain of this patent as long as satisfy.
See also Fig. 3 a and Fig. 3 b, Fig. 3 a and Fig. 3 b provide the front view and the lateral plan of another kind of electric block.
The difference of second kind of embodiment and first kind of embodiment is that this programme has increased adjusting motor 10 and gear drive, is used to regulate engagement, disengaged position between described driven wheel 8 and the tooth bar 7.
Wherein, described adjusting motor 10 is fixedly installed on described running motor 2 one sides in the walking dolly 1; Be understandable that the relative position relation of described adjusting motor 10 need not be done concrete qualification.
Chopped-off head gear 11 in the described gear drive is captiveed joint and coaxial rotation with described adjusting motor output shaft 12; Have in the final stage external gear 13 on negative thread and the described traveling wheel shaft 9 and have outside thread, described final stage external gear 13 is sleeved on forms screw mandrel screw transmission device on the described traveling wheel shaft 9, be provided with axial limiting parts 14 in final stage external gear 13 both sides, because described final stage external gear 13 has been carried out axial limiting, therefore, when described final stage external gear 13 rotates, drive screw mandrel by screw and move axially.
Please in the lump referring to seeing also Fig. 4 a and Fig. 4 b, described walking wheel 6 is sleeved on the described traveling wheel shaft 9, and adopts key 15 to be connected between described walking wheel 6 and the described traveling wheel shaft 9, described traveling wheel shaft 9 and walking wheel 6 coaxial rotation and slide relative vertically; Adopt key 17 to be connected between described traveling wheel shaft 9 and the described running motor output shaft 16, described traveling wheel shaft 9 and running motor output shaft 16 coaxial rotation and slide relative vertically.As previously mentioned, when described screw drive screw mandrel moved axially, promptly described traveling wheel shaft 9 moved axially; Owing to be connected for key between described traveling wheel shaft 9 and described walking wheel 6 and the running motor output shaft 16, therefore, when longitudinal travel takes place in described traveling wheel shaft 9, longitudinal travels can take place with respect to described walking wheel 6 and running motor output shaft 16 in traveling wheel shaft 9, and after the displacement its still with described walking wheel 6 and running motor output shaft 16 coaxial rotation.
Key between above-mentioned described parts connects in the matching relationship, if select flat key for use, select different tolerance clearances for use between this key and two components, promptly, select interference fit and free-running fit respectively for use, when described traveling wheel shaft 9 axially was subjected to displacement, this key can move in the same way or be all with walking wheel 6 that matches or running motor output shaft 16 and maintain static with described walking wheel 9.
To sum up, the described electric block of present embodiment by regulating motor 10 and transmission device, has two control positioies between described driven wheel 8 and the tooth bar 7 in the traveling process, see also Fig. 4 a and Fig. 4 b.
Shown in Fig. 4 a, first position is to be applied to climb the meshing relation of operating mode, and have bigger hill climbing ability: this moment, walking wheel 6 was used for carrying, and driven wheel 8 and tooth bar 7 engagements are used to finish the driving of traveling operation.
Shown in Fig. 4 b, second position is the renunciation that is applied to non-climbing operating mode, can improve road speed: at this moment, walking wheel 6 promptly carries the driving that is used to finish the traveling operation again, and driven wheel 8 is thrown off with tooth bar 7, driven wheel 8 idle running.Therefore, improved the maneuverability of electric block greatly.
Further, shown in Fig. 3 b, described adjusting motor output shaft 12 be arranged in parallel with described running motor output shaft 16, and described gear drive is a pair of external meshing tooth.
Special version be that position between described adjusting motor output shaft 12 and the described running motor output shaft 16 relation is not limited to be arrangeding in parallel shown in the figure, also can be vertical setting according to position, walking dolly 1 inner space.
In addition, the transmission device of two output shafts of an input shaft can be set in fact also, like this, complete machine only uses a motor can realize driving and regulating two functions.
Further, adopt spline to be connected respectively between described traveling wheel shaft 9 and described walking wheel 6 and the running motor output shaft 16.Owing to be multiple tooth transmitted load, so the load-carrying capacity height is little to the weakening degree of axle, it is high and steering capability is good to have a centering precision, so steady more when carrying out the conversion of control position, reliably.
Present embodiment also provides a kind of railway truck, sees also Fig. 5, and this figure is the structural representation of railway truck of the present invention.Be provided with steel I-beam 18 in car body, it comprises electric block 20 as previously mentioned, and concrete structure does not repeat them here.Described walking dolly 1 walks to walk to the railway carriage outside, handling goods voluntarily along steel I-beam.
In handling during than unfavorable operating modes such as parcels, steel I-beam can produce the angle of inclination with car body, the present invention adopts rack-and-gear to drive, and can overcome the component of load along the girder steel length direction fully, guarantees that the walking dolly band carries along normally climbing operation evenly of steel I-beam.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1, electric block, comprising can be along the walking dolly of the lower edge traveling of steel I-beam; Described walking dolly internal fixation is provided with the running motor that drives walking wheel, it is characterized in that, also comprises:
Driven wheel is captiveed joint and coaxial rotation with the wheel shaft of described walking wheel;
Tooth bar is fixedly installed on along the length direction of steel I-beam on the upper surface of lower edge of described steel I-beam, described driven wheel and the described tooth bar composition rack and pinion drive mechanism that is meshing with each other;
Regulate motor, be fixedly installed on described running motor one side in the walking dolly; With
Gear drive, wherein, the chopped-off head gear is captiveed joint and coaxial rotation with described adjusting motor output shaft; The final stage outer gear sleeve is contained in forms screw mandrel screw transmission device on the wheel shaft of walking wheel, and final stage external gear both sides are provided with the axial limiting parts;
Described walking wheel is sleeved on the wheel shaft, and adopts key to be connected between described walking wheel and the wheel shaft, the wheel shaft of walking wheel and walking wheel coaxial rotation and slide relative vertically; Adopt key to be connected between the wheel shaft of walking wheel and the output shaft of described running motor, the wheel shaft of walking wheel and running motor output shaft coaxial rotation and slide relative vertically.
2, electric block according to claim 1 is characterized in that, along the length direction of steel I-beam, described tooth bar form by multistage and the profile of tooth of junction complete.
3, electric block according to claim 2 is characterized in that, the number of teeth of described driven wheel is 17～20.
According to claim 1,2 or 3 described electric blocks, it is characterized in that 4, the output shaft of described adjusting motor and the output shaft of described running motor be arranged in parallel, described gear drive is a pair of external meshing tooth.
5, electric block according to claim 4 is characterized in that, adopts spline to be connected respectively between the wheel shaft of described walking wheel and described walking wheel and the running motor output shaft.
6, railway truck is characterized in that, is provided with in the compartment as claim 1 to the described electric block of the arbitrary claim of claim 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810126551A CN100586835C (en) | 2008-07-01 | 2008-07-01 | Electric gourd and lorry using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810126551A CN100586835C (en) | 2008-07-01 | 2008-07-01 | Electric gourd and lorry using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101298309A CN101298309A (en) | 2008-11-05 |
| CN100586835C true CN100586835C (en) | 2010-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810126551A Expired - Fee Related CN100586835C (en) | 2008-07-01 | 2008-07-01 | Electric gourd and lorry using the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100586835C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103240562B (en) * | 2013-05-03 | 2015-02-25 | 湖北弘毅钢结构工程有限公司 | Chained turnover equipment for H-shaped steel |
| CN104229629B (en) * | 2014-08-29 | 2016-02-17 | 苏州中州安勃起重有限公司 | Double-deck straddle-type electric block |
| CN105171620A (en) * | 2015-09-28 | 2015-12-23 | 上海广成涂装技术工程有限公司 | Automatic sand blasting system of three-dimensional mechanical arm |
| CN110745696A (en) * | 2019-10-30 | 2020-02-04 | 鑫领域智能科技(邳州)有限公司 | Electric hoist running gear |
| CN112093677A (en) * | 2020-09-21 | 2020-12-18 | 张先平 | Assembled type hoisting equipment for building and using method thereof |
-
2008
- 2008-07-01 CN CN200810126551A patent/CN100586835C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101298309A (en) | 2008-11-05 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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Address after: 161002 Qigihar City, Heilongjiang province Tiefeng District Plant Road No. 36 Patentee after: CRRC QIQIHAR VEHICLE CO., LTD. Address before: 161002 Qigihar City, Heilongjiang province Tiefeng District Plant Road No. 36 Patentee before: Qiqihar Railway Rolling Stock Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100203 Termination date: 20210701 |