CN201220892Y - Bridge crane - Google Patents
Bridge crane Download PDFInfo
- Publication number
- CN201220892Y CN201220892Y CNU2008201153447U CN200820115344U CN201220892Y CN 201220892 Y CN201220892 Y CN 201220892Y CN U2008201153447 U CNU2008201153447 U CN U2008201153447U CN 200820115344 U CN200820115344 U CN 200820115344U CN 201220892 Y CN201220892 Y CN 201220892Y
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- crane
- telescopic boom
- span structure
- crane span
- overhead
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- Expired - Lifetime
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Abstract
The utility model discloses a bridge crane, and relates to the movable lifting machinery technology. The bridge crane comprises a bridge frame, a bridge frame running mechanism, a crane trolley, a telescopic arm and a telescopic running mechanism. The bridge frame running mechanism drives the bridge frame to run longitudinally along the tracks on elevated transversal beams on both sides; the crane trolley runs transversally along the tracks on the bridge frame; the telescopic arm is arranged between the crane trolley and the bridge frame; the crane trolley runs transversally along the tracks on the telescopic arm; and the telescopic running mechanism drives the telescopic arm to run transversally along the track on the bridge frame. The utility model can reduce the transport links without other auxiliary transposition devices, thereby reducing the cost and improving the production efficiency.
Description
Technical field
The utility model relates to movably elevator machinery, is specifically related to a kind of overhead crane.
Background technology
Crane span structure type hoisting crane claims overhead traveling crane again.Common crane span structure type hoisting crane is made up of crane carriage, crane span structure operating unit, crane span structure metal construction, the crane span structure of crane in bridge type vertically moves along being laid on the track of both sides on overhead, crane carriage laterally moves along the track that is laid on the crane span structure, constitute the operating range of a rectangle, just can make full use of the space handling material below the crane span structure, not be subjected to the obstruction of wayside equipment.
At present, crane span structure type hoisting crane extensively is used in indoor and outdoor warehouse, factory building, harbour and open-air yard etc. and locates, and especially for the industrial building, is indispensable accessory equipment.
The industrial building generally is made up of several striding, and same work post is to stride, i.e. an operating area.Because of product sequence required, usually contact is the tightst in adjacent two operations between striding, can produce finished product by coacting of each operation, adjacent two to stride the work capacity of a Product transport bigger, usually need storage battery car or special-purpose transport trolley to finish Product transport between striding, Product transport to adjacent operating area, is unloaded by overhead traveling crane again.Such as, engineering shop generally includes turning processing workshop section, Milling Process workshop section and fitter's shop etc. and is arranged in different the striding, if the manufacturing procedure of part is rough turn, milling locating surface, finish turning and pincers worker assembling, so this part enter machine add need in factory building, carry out striding for three times behind the workshop between transportation.Finish owing to need special transportation means to cooperate, it is low therefore to exist production efficiency, wasting manpower and material resources's problem.
In view of this, demand developing a kind of crane span structure type hoisting crane that can realize adjacent two inter-product transportations urgently, can directly be transported to adjacent operating area with originally striding goods again at this operating area lifting goods.
The utility model content
At above-mentioned defective, the technical matters that the utility model solves is, a kind of overhead crane is provided.Realization is striden a goods transport and be need not other auxiliary conveying equipments, has reduced transit link, but and then cost-cutting, enhances productivity.
The overhead crane that the utility model provides comprises crane span structure, crane span structure operating unit, crane carriage, telescopic boom and stretching operation mechanism; Wherein, described crane span structure operating unit drives described crane span structure and vertically moves along the track on the overhead crossbeam of both sides; Described crane carriage laterally moves along the track on the described crane span structure; Described telescopic boom is arranged between described crane carriage and the described crane span structure, and described crane carriage laterally moves along the track on the described telescopic boom; Described stretching operation mechanism drives described telescopic boom and laterally moves along the track on the described crane span structure.
Preferably, described stretching operation mechanism comprises leading screw and drive motor, and described leading screw and described crane span structure articulate; Described drive motor be fixedly installed on the described crane span structure and the takeoff output of described drive motor to described leading screw; Wherein, be set with the screw that described threads of lead screw cooperates on the described telescopic boom.
Preferably, described stretching operation mechanism also comprises drop-gear box, and the input end of described drop-gear box is captiveed joint with leading screw one end with the mouth of drive motor respectively with mouth.
Described drop-gear box adopts the worm and gear transmission, and the axial line opposing parallel of the output shaft of described drive motor and described leading screw is provided with.
Preferably, described crane span structure is a double girder bridge, and the bottom of described twin beams has guide rail that shape of cross section is a flute profile respectively and the opening of two guide rails is oppositely arranged, and described telescopic boom laterally moves along the channled rail on the described double girder bridge.
Described telescopic boom is an I-shaped structure, wherein, the epimere horizontally set of described telescopic boom and its both side ends place respectively in two channled rails on the described double girder bridge, the hypomere horizontally set and the described crane carriage of described telescopic boom laterally move along the hypomere on the described telescopic boom, and the gap between the upper surface of described telescopic boom and the described overhead crossbeam lower surface is 40～50mm.
Preferably, also comprise nylon slide block, be arranged between the both side ends and described channled rail of described telescopic boom epimere.
Described nylon slide block comprises first nylon slide block, second nylon slide block and the 3rd nylon slide block, and is separately positioned between upper surface, lower surface, end face and the described channled rail at described telescopic boom epimere both ends.
Preferably, comprise that also at least two are only turned over the stopper part, the described stopper part that only turns over is fixedly installed on respectively on the elevated structure of end carriage top of described crane span structure both sides, describedly only turns over the lower surface of stopper part and the gap between the described crane span structure end carriage upper surface is 5～15mm.
Preferably, comprise that also at least two are adjusted the backing plate group, are fixedly installed on respectively on the upper surface of described crane span structure both sides end carriage.
The overhead crane that the utility model provides compared with prior art, need finish when striding goods transport, at first start stretching operation mechanism, driving described telescopic boom by transmission device stretches out to adjacent striding, cooperate the side travel and the ascending, descending operation of crane carriage simultaneously, goods can be delivered to ideal position.The utility model not only has the function of existing bridge hoisting crane, finishes the lifting operation in originally striding; And the product of originally striding directly can be transported to adjacent operating area, reduced the production link that utilizes accessory equipment transportation, and then reduced cost of product, enhance productivity.
In preferred version of the present utility model, the drop-gear box of the power of drive motor through adopting the worm and gear transmission exports described telescopic boom to, utilization have auto-lock function worm gear, that the worm drive form guarantees that telescopic boom stretches out safety of operation is reliable, thereby will originally stride goods transport to adjacent operating area; Wherein, worm screw is a driving wheel, links with motor; Worm gear is a flower wheel, links with actuating unit; In case et out of order, worm gear lost efficacy earlier, and then can protect motor.
In another preferred version of the present utility model, the secondary nylon slide block that adopts of relative motion between described telescopic boom and the described crane span structure, the friction coefficient of described nylon slide block is little, stretches out state even be in described telescopic boom, also can guarantee the stability of integral structure and relative motion reliably.
The overhead crane that the utility model provides is specially adapted to occasions such as indoor and outdoor warehouse, factory building, harbour and open-air yard.
Description of drawings
Fig. 1 is the integral structure scheme drawing of overhead crane described in the utility model;
Fig. 2 is that the A of Fig. 1 is to view;
Fig. 3 is that telescopic boom 4 described in the utility model stretches out view;
Fig. 4 is the B-B cutaway view of crane span structure shown in Fig. 11 and telescopic boom 4;
Fig. 5 is the front view of telescopic boom 4 described in the utility model;
Fig. 6 is the birds-eye view of telescopic boom 4 described in the utility model;
Fig. 7 is the I portion enlarged drawing of Fig. 3.
Among the figure:
The specific embodiment
Specify present embodiment below in conjunction with Figure of description.
See also Fig. 1 and Fig. 2, Fig. 1 is the integral structure scheme drawing of overhead crane described in the utility model, and Fig. 2 is that the A of Fig. 1 is to view.
As depicted in figs. 1 and 2, the described overhead crane of present embodiment mainly is made up of crane span structure 1, crane span structure operating unit 2, crane carriage 3, telescopic boom 4 and stretching operation mechanism 5.
Wherein, the described crane span structure 1 of described crane span structure operating unit 2 drivings vertically moves along the track on the overhead crossbeam 9 of both sides; Described crane carriage 3 laterally moves along the track on the described crane span structure 1; Described telescopic boom 4 is arranged between described crane carriage 3 and the described crane span structure 1, and described crane carriage 3 laterally moves along the track on the described telescopic boom 4; The described telescopic boom 4 of described stretching operation mechanism's 5 drivings laterally moves along the track on the described crane span structure 1.Track alignment vertical and on the overhead crossbeam is consistent described in this specification sheets; Described track alignment horizontal and on the described crane span structure 1 is consistent.
Here need to illustrate, key points in design of the present utility model is described telescopic boom 4 and stretching operation mechanism 5, and the concrete structure and the principle of work of the crane span structure 1 in this programme, crane span structure operating unit 2 and crane carriage 3 are same as the prior art; Wherein, described crane carriage 3 is formed (not illustrating one by one among the figure) by lifting mechanism, wheeling mechanism and trolley frame three parts; Lifting mechanism comprises electrical motor, drg, retarder, reel and assembly pulley, and those of ordinary skill in the art can realize fully based on its expertise, so crane span structure 1, crane span structure operating unit 2 and crane carriage 3 are not done more detailed the elaboration in the present embodiment.
See also Fig. 3, this figure is that telescopic boom 4 described in the utility model stretches out view.When needs carry out adjacent two goods transports between striding, 5 work of stretching operation mechanism, and then output power to described telescopic boom 4; When described telescopic boom 4 extends in the adjacent work area, cooperate the action of crane carriage 3 to finish the work.
Compared with prior art, existing bridge hoisting crane can only be realized lifting shipping goods in the operating area, if need the goods transport between the adjacent work area, then needs private carriers such as storage battery car; Link is many in the process of producing product, efficient is low, is subjected to the restriction of transportation means simultaneously, in case storage battery car or other transportation device et out of orders, the transport courses of product can't normal operation, even causes stopping production.The utility model not only has the function of existing bridge hoisting crane, and can finish the goods transport between adjacent two operating areas, that is to say, realizes that adjacent two goods transports between striding do not need to be equipped with other auxiliary conveying equipments; Overhead crane described in the utility model can be finished the lifting operation in originally striding, and the product of originally striding directly can be transported to adjacent operating area again, has reduced the production link that utilizes the accessory equipment transportation, and then reduces cost of product, enhances productivity.
Further, as depicted in figs. 1 and 2, the described stretching operation of present embodiment mechanism 5 comprises leading screw 51 and drive motor 52: described leading screw 51 articulates with described crane span structure 1; Described drive motor 52 be fixedly installed on the described crane span structure 1 and the takeoff output of described drive motor 52 to described leading screw 51; Wherein, be set with the screw 41 of described leading screw 51 screws thread fit on the described telescopic boom 4.In the leading screw screw matching relationship of this programme, leading screw 5 relatively rotates, screw 41 relatively moves, as shown in Figure 3, described screw 41 moves to the D place from the C place, and then driving described telescopic boom 4 to a side shifting, rotatablely moving through leading screw screw transmission device of described drive motor 52 changes the straight-line motion of described telescopic boom 4 into.
Need to prove that the stroke of described telescopic boom 4 need satisfy the effective operation interval of overhead traveling crane in adjacent the striding, and that is to say that the stroke of described telescopic boom 4 has determined the efficient range of overhead crane described in the utility model in adjacent striding.
In fact, the straight-line motion that changes execution unit into that rotatablely moves of motor can also adopt alternate manner, such as: rack and pinion drive mechanism, use needs all in the protection domain of this patent as long as satisfy.Certainly, the working environment of overhead crane is relatively poor, and matching part enters dust and sand easily; Therefore, adopt leading screw screw transmission device in this programme, can guarantee motion more steadily, reliably, the transmission accuracy height is so be preferred plan.
In addition, the power of described drive motor 52 and output torque are determined according to the hoisting capacity of hoisting crane and the speed of stretching operation.
Be understandable that, described drive motor 52 can adopt the motor that carries retarder, also can supporting according to actual needs design speed reduction gearing, as shown in the figure, described stretching operation mechanism 5 also comprises drop-gear box 53, and the input end of described drop-gear box 53 is captiveed joint with the mouth of drive motor 52 and an end of leading screw 51 respectively with mouth.In the work, the takeoff output of described drive motor 52 is to described drop-gear box 53, and rev down also increases moment of torsion, and then obtains bigger output torque.
In addition, as shown in Figure 2, the output shaft of described drive motor 52 can be provided with the axial line opposing parallel of described leading screw 51, designs like this for the having relatively high expectations of drop-gear box 53, and needs two-stage bevel drive mechanism in the case at least, the tooling cost height; Certainly, the output shaft of described drive motor 52 also can with axial line (not shown) on same straight line of described leading screw 51, still, so design just requires bigger length space; In fact, above-mentioned relative position need be selected according to the correlation parameters such as length of crane span structure girder.
Drop-gear box 53 as transmission device also can adopt such design, promptly adopts worm gear, worm screw to rotate, and utilizes worm gear, worm drive form with auto-lock function to guarantee that telescopic boom 4 extend out to adjacent striding, thereby will originally stride goods transport to adjacent operating area; In addition, in the worm drive of this programme, worm screw is a driving wheel, links with motor; Worm gear is a flower wheel, links with actuating unit; In case et out of order, worm gear lost efficacy earlier, and then can protect motor.Therefore, adopting worm gear, worm drive is preferred plan.
Further, crane span structure 1 described in the utility model adopts double girder bridge.See also Fig. 4, this figure is the B-B cutaway view of crane span structure shown in Fig. 11 and telescopic boom 4.
In conjunction with Fig. 2 and shown in Figure 4, the bottom of described twin beams has guide rail that shape of cross section is a flute profile respectively and the opening of two guide rails is oppositely arranged; That is, the bottom that the bottom of first beam 12 has first channled rail, 121, the second beams 13 has second channled rail 131, and the opening of described first channled rail 121 and described second channled rail 131 is oppositely arranged; Described telescopic boom 4 laterally moves along the channled rail on the described double girder bridge.
Please in the lump referring to Fig. 5 and Fig. 6, Fig. 5 is the front view of telescopic boom 4 described in the utility model; Fig. 6 is the birds-eye view of telescopic boom 4 described in the utility model.For adapting to above-mentioned twin-spar construction, the telescopic boom of present embodiment adopts following structure design, described telescopic boom 4 is an I-shaped structure, wherein, epimere 42 horizontally sets of described telescopic boom 4 and its both side ends place respectively in two channled rails on the described double girder bridge, and hypomere 43 horizontally sets and the described crane carriage 3 of described telescopic boom 4 laterally move along the hypomere 43 on the described telescopic boom 4; As shown in figures 1 and 3, the secondary roller mode that adopts of the relative motion between described crane carriage 3 and described telescopic boom 4 hypomeres 43.
Gap b between the upper surface of described telescopic boom 4 and described overhead crossbeam 9 lower surfaces is 40～50mm, specifically sees also Fig. 7, and this figure is the I portion enlarged drawing of Fig. 3.
Need to prove, limit the gap b between the lower surface of the upper surface of described telescopic boom 4 and described overhead crossbeam 9, waste clean lifting altitude to prevent this excessive clearance.
Kinematic pair between telescopic boom described in the present embodiment 4 and the described crane span structure 1 can adopt traditional roller mode (not shown), but the mode of operation of telescopic boom 4 is a cantilever beam, have only several rollers to contact with described guide rail is stressed, the roller shaft carrying is bigger, so should not adopt the roller structure of rigidity contact; Based on this, present embodiment adopts nylon slide block as the kinematic pair between described telescopic boom 4 and the described crane span structure 1, and described nylon slide block 6 is arranged between the both side ends and described channled rail of described telescopic boom 4 epimeres 42.
Wherein, described nylon slide block 6 comprises first nylon slide block 61, second nylon slide block 62 and the 3rd nylon slide block 63, and is separately positioned between upper surface, lower surface, end face and the described channled rail at described telescopic boom 4 epimeres 42 both ends.Along the sense of motion of described telescopic boom 4, described nylon slide block 6 can be integral structure, also can adopt polylith to be spliced.The friction coefficient of described nylon slide block is little, than roller structure, nylon slide block places between the guide rail of described telescopic boom 4 and described crane span structure 1, and face of joint is bigger, stretch out state even be in described telescopic boom 4, also can guarantee the stability of integral structure and relative motion reliably.
Especially need explanation a bit, described nylon slide block 6 is answered time-based maintenance as consumable accessory and is changed when the overhead traveling crane overhaul.
As previously mentioned, the state that stretches out of telescopic boom 4 is a cantilever beam, and under the heavier situation of goods, the situation of perk can appear in the other end of described crane span structure 1, and then occurs that complete machine is tumbled, unstability.As depicted in figs. 1 and 2, present embodiment comprises that also at least two are only turned over stopper part 7, the described stopper part 7 that only turns over is fixedly installed on respectively on the elevated structure of end carriage 11 tops of described crane span structure 1 both sides, describedly only turn over the lower surface of stopper part 7 and the gap a between described crane span structure end carriage 11 upper surfaces is 5～15mm, specifically see also Fig. 7.
Need to prove, be 2.5 ‰ owing to have the hill climbing ability of crane carriage operating unit now, and described crane span structure end carriage 11 and the described gap a that only turns between the stopper part are unsuitable excessive, is set at about 10mm usually to get final product.
Along with the carrying out of the handling work between adjacent the striding, the upper surface of described both sides end carriage 11 can take place wearing and tearing or assembly clearance excessive, the inclination of described crane span structure 1 will be bigger, and then influence the normal operation of described crane carriage.For this reason, present embodiment comprises that also at least two are adjusted backing plate group 8, are fixedly installed on respectively on the upper surface of described crane span structure 1 both sides end carriage 11.Generally, after determining the described lower surface and the gap a between described crane span structure end carriage 11 upper surfaces that only turns over stopper part 7, select the adjustment backing plate of suitable thickness for use based on the assembly clearance of reality, described adjustment backing plate uses bolt to get final product on the end carriage 11 of described crane span structure 1.
In sum, lifting operation in overhead crane described in the utility model can be finished and originally stride can directly be transported to adjacent operating area with the product of originally striding again, need not to utilize auxiliary conveying equipments, reduced to stride the link of a goods transport, and then reduced cost of product, enhance productivity.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1, overhead crane comprises:
Crane span structure;
The crane span structure operating unit drives described crane span structure and vertically moves along the track on the overhead crossbeam of both sides; With
Crane carriage laterally moves along the track on the described crane span structure; It is characterized in that, also comprise:
Telescopic boom is arranged between described crane carriage and the described crane span structure, and described crane carriage laterally moves along the track on the described telescopic boom; With
Stretching operation mechanism drives described telescopic boom and laterally moves along the track on the described crane span structure.
2, overhead crane according to claim 1 is characterized in that, described stretching operation mechanism comprises:
Leading screw articulates with described crane span structure;
Drive motor, be fixedly installed on the described crane span structure and the takeoff output of described drive motor to described leading screw;
Wherein, be set with the screw that described threads of lead screw cooperates on the described telescopic boom.
3, overhead crane according to claim 2 is characterized in that, described stretching operation mechanism also comprises drop-gear box, and the input end of described drop-gear box is captiveed joint with leading screw one end with the mouth of drive motor respectively with mouth.
4, overhead crane according to claim 3 is characterized in that, described drop-gear box adopts the worm and gear transmission, and the axial line opposing parallel of the output shaft of described drive motor and described leading screw is provided with.
5, overhead crane according to claim 1, it is characterized in that, described crane span structure is a double girder bridge, and the bottom of described twin beams has guide rail that shape of cross section is a flute profile respectively and the opening of two guide rails is oppositely arranged, and described telescopic boom laterally moves along the channled rail on the described double girder bridge.
6, overhead crane according to claim 5, it is characterized in that, described telescopic boom is an I-shaped structure, wherein, the epimere horizontally set of described telescopic boom and its both side ends place respectively in two channled rails on the described double girder bridge, the hypomere horizontally set and the described crane carriage of described telescopic boom laterally move along the hypomere on the described telescopic boom, and the gap between the upper surface of described telescopic boom and the described overhead crossbeam lower surface is 40～50mm.
7, overhead crane according to claim 6 is characterized in that, also comprises nylon slide block, is arranged between the both side ends and described channled rail of described telescopic boom epimere.
8, overhead crane according to claim 7, it is characterized in that, described nylon slide block comprises first nylon slide block, second nylon slide block and the 3rd nylon slide block, and is separately positioned between upper surface, lower surface, end face and the described channled rail at described telescopic boom epimere both ends.
9, according to the described overhead crane of arbitrary claim in the claim 1 to 8, it is characterized in that, comprise that also at least two are only turned over the stopper part, the described stopper part that only turns over is fixedly installed on respectively on the elevated structure of end carriage top of described crane span structure both sides, describedly only turns over the lower surface of stopper part and the gap between the described crane span structure end carriage upper surface is 5～15mm.
10, overhead crane according to claim 9 is characterized in that, comprises that also at least two are adjusted the backing plate group, are fixedly installed on respectively on the upper surface of described crane span structure both sides end carriage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201153447U CN201220892Y (en) | 2008-06-10 | 2008-06-10 | Bridge crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201153447U CN201220892Y (en) | 2008-06-10 | 2008-06-10 | Bridge crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201220892Y true CN201220892Y (en) | 2009-04-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201153447U Expired - Lifetime CN201220892Y (en) | 2008-06-10 | 2008-06-10 | Bridge crane |
Country Status (1)
| Country | Link |
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| CN (1) | CN201220892Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101284629B (en) * | 2008-06-10 | 2010-06-09 | 齐齐哈尔轨道交通装备有限责任公司 | Overhead crane |
| CN102807164A (en) * | 2011-05-30 | 2012-12-05 | 江苏振世达汽车模具有限公司 | Large-scale stamping piece output device |
| CN106744305A (en) * | 2017-03-24 | 2017-05-31 | 青岛海西重机有限责任公司 | A kind of route-variable height beam driving for crane room |
| CN107640536A (en) * | 2017-10-10 | 2018-01-30 | 江苏高科物流科技股份有限公司 | A kind of main-auxiliary vehicle for being easy to ultra-large type object to access |
| CN113840721A (en) * | 2019-09-02 | 2021-12-24 | 通伊欧轮胎株式会社 | Tire forming device |
| CN114380195A (en) * | 2022-03-26 | 2022-04-22 | 河南卫华重型机械股份有限公司 | Mechanical anti-swing bridge crane for transferring and cleaning vinasse |
-
2008
- 2008-06-10 CN CNU2008201153447U patent/CN201220892Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101284629B (en) * | 2008-06-10 | 2010-06-09 | 齐齐哈尔轨道交通装备有限责任公司 | Overhead crane |
| CN102807164A (en) * | 2011-05-30 | 2012-12-05 | 江苏振世达汽车模具有限公司 | Large-scale stamping piece output device |
| CN106744305A (en) * | 2017-03-24 | 2017-05-31 | 青岛海西重机有限责任公司 | A kind of route-variable height beam driving for crane room |
| CN107640536A (en) * | 2017-10-10 | 2018-01-30 | 江苏高科物流科技股份有限公司 | A kind of main-auxiliary vehicle for being easy to ultra-large type object to access |
| CN113840721A (en) * | 2019-09-02 | 2021-12-24 | 通伊欧轮胎株式会社 | Tire forming device |
| CN113840721B (en) * | 2019-09-02 | 2023-08-18 | 通伊欧轮胎株式会社 | Tire building device |
| CN114380195A (en) * | 2022-03-26 | 2022-04-22 | 河南卫华重型机械股份有限公司 | Mechanical anti-swing bridge crane for transferring and cleaning vinasse |
| CN114380195B (en) * | 2022-03-26 | 2022-08-23 | 河南卫华重型机械股份有限公司 | Mechanical anti-swing bridge crane for transferring and cleaning vinasse |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090415 Effective date of abandoning: 20080610 |