CN103663139A - Pull-type trolley energy-saving driving device of bridge-frame type crane - Google Patents
Pull-type trolley energy-saving driving device of bridge-frame type crane Download PDFInfo
- Publication number
- CN103663139A CN103663139A CN201310729419.6A CN201310729419A CN103663139A CN 103663139 A CN103663139 A CN 103663139A CN 201310729419 A CN201310729419 A CN 201310729419A CN 103663139 A CN103663139 A CN 103663139A
- Authority
- CN
- China
- Prior art keywords
- adapter shaft
- dolly
- ratchet
- volute spring
- energy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Handcart (AREA)
Abstract
The invention relates to a pull-type trolley energy-saving driving device of a bridge-frame type crane, which can be used for solving the problem in energy conversion during braking of a shore container trolley. According to the method, racks (2) are required to be paved on the inner sides of trolley running rails (1); trolley wheels (4) are connected with a trolley body (3) through wheel shafts (10); the wheel shafts (10) are fixedly connected with the trolley body (3) and connected with the wheels (4) through bearings; each of gears (5) is connected with one end of a torsion overload protection clutch (6) through a gear connection shaft (11); the other end of each torsion overload protection clutch (6) is fixedly connected with a ratchet stopper (7); the ratchet stoppers (7) are connected with volute springs (8) through connection shafts (9); the volute springs (8) are used for storing energy generated by braking of the trolley and driving the trolley to move; the ratchet stoppers (7) are used for controlling the rotating directions of the connection shafts (9); the torsion overload protection clutch (6) is used for protecting the connection shafts (9) and the gear connection shafts (11) and can be also used for implementing overload protection.
Description
Technical field
The present invention relates to a kind of bridge crane pull-type carriage energy-saving driving device, be specifically related to a kind of device that utilizes volute spring to drive trolley travelling.
Background technology
The current towed running trolley of bridge crane mainly twines system, car wheel group, dolly lifting pulley group, trolley frame, driver's cab, energy disperser, horizontal wheel, jacking and anti-fall device, safety caging device etc. by driver train, steel rope and forms.
In bridge crane pull-type carriage when braking, is because dolly own wt is larger, and braking time is short, so dolly in braking procedure due to the effect of drg, the mechanical energy of dolly self is lost in a large number, if this part collection of energy can be got up, and be used, can make bridge crane carry out work with the more energy-efficient mode of production.
Summary of the invention
The present invention, in order to solve the deficiencies in the prior art, has proposed a kind of bridge crane pull-type carriage energy-saving driving device, and the energy dress while solving the braking of Quayside container dolly changes problem.
Technical matters of the present invention is mainly solved by following technical proposals:
A bridge crane pull-type carriage energy-saving driving device, is arranged on dolly car body, and both sides, dolly car body below arrange trolley track, and trolley track coordinates with car wheel and makes dolly can on trolley track, walk and carry dolly weight; It is characterized in that: dolly car body below, the inner side of two trolley tracks arranges a pair of tooth bar parallel with trolley track, and two tooth bars are symmetrical with respect to dolly car body line of centers; With the tooth bar rotating adapter shaft that pair of parallel is set below dolly car body perpendicularly, a gear adapter shaft is docked respectively in the outside, two ends of each adapter shaft, the external side end of each gear adapter shaft all connects one and tooth bar gears in mesh, and the medial extremity of each gear adapter shaft is all fixedly connected with a torque overload protection power-transfer clutch; A ratchet stop and a volute spring are also set on each adapter shaft; The ratchet and pawl that ratchet stop comprises external toothing; ratchet and dolly car body are affixed; ratchet is fixed on the torque overload protection power-transfer clutch of corresponding side; the affixed rotation direction with control linkage axle of ratchet inner side end and adapter shaft; volute spring is placed on adapter shaft in ratchet inner side; volute spring one end and adapter shaft are fixed, and the other end and dolly car body are fixing with stored energy or driving dolly.
In technique scheme, the installation direction of the volute spring on two adapter shafts is contrary; The installation direction of two ratchet stops is contrary; Make along dolly body movement direction, the volute spring being always positioned on the adapter shaft in the place ahead drives adapter shaft and gear adapter shaft to rotate stored energy or drives dolly.
In technique scheme, horizontal the inserting of the interior crimp end of volute spring is fixed on adapter shaft, and outer crimp end and dolly car body are curling fixing.
In technique scheme, ratchet is by hydraulic oil cylinder driving, and oil cylinder and ratchet all affixed with dolly car body,
In technique scheme, the central axis of ratchet and adapter shaft and gear adapter shaft axis are located along the same line.
In technique scheme, wheel and rack is not used in carrying, only for driving moving of car.
In technique scheme, each adapter shaft is connected with dolly car body by bearing.
In technique scheme, dolly car body and axletree are affixed, and car wheel is arranged on axletree.
In technique scheme, the adapter shaft and the gear adapter shaft that are positioned at the place ahead are respectively the first adapter shaft and the first gear adapter shaft, the first volute spring on the first adapter shaft is before starting energy storage, and two torque overload protection power-transfer clutchs are all in relaxation state, and dolly normally travels; Now, two adapter shafts are in relaxed state;
When the volute spring on the adapter shaft in the place ahead starts energy storage, the first torque overload protection power-transfer clutch that the first adapter shaft is corresponding compresses, the second torque overload protection clutch release that rear the second adapter shaft is corresponding; Now, the first gear wheel shaft and the first adapter shaft that this adapter shaft is corresponding keep synchronized rotation, and the rotation of the first adapter shaft drives the interior crimp end that the first volute spring is connected with the first adapter shaft to rotate, and makes the first volute spring energy storage;
After energy storage finishes, due to the effect of the first ratchet stop on the first adapter shaft, the energy that the first volute spring is stored can not discharge automatically, guarantees that the first volute spring can not drive the first adapter shaft and the first gear wheel shaft to rotate backward; After dolly end-of-job, control the ratchet of the first ratchet stop and decontrol ratchet, the energy of storing by the first volute spring discharges and drives the first adapter shaft and the first gear wheel shaft to rotate, with this, by gear drive dolly, return, until after the energy of the first volute spring storage discharges completely, loosen the first torque overload protection power-transfer clutch, prevent that the first volute spring from rotating backward the operation that affects dolly;
Utilize the second volute spring energy storage on the second adapter shaft or drive the mode of dolly identical with the first volute spring.
Volute spring of the present invention, on adapter shaft, is used for stored energy and drive dolly; Torque overload protection power-transfer clutch is connected by ratchet stop with adapter shaft.Wherein ratchet stop is used for the rotation direction of control linkage axle, and torque overload protection power-transfer clutch is used for protecting volute spring; Gear is connected with torque overload protection power-transfer clutch by gear wheel shaft.
Therefore, tool of the present invention has the following advantages: the mechanical energy collection of waste when 1, dolly is braked, drives moving of car with this; 2, dolly drives by the car wheel of homonymy not respectively to different directions, makes moving of car more flexible; 3, by torque overload, protect power-transfer clutch and ratchet stop control the stored energy of volute spring and release energy.
Accompanying drawing explanation
Fig. 1 is bridge crane pull-type carriage energy-saving driving device structure theory of constitution figure of the present invention;
Fig. 2 is the principle schematic of ratchet stop in bridge crane pull-type carriage energy-saving driving device of the present invention;
Fig. 3 is one of them adapter shaft of the present invention and gear wheel shaft docking structure schematic diagram.
Fig. 4 is that volute spring of the present invention arranges structural representation.
In figure, Reference numeral is corresponding as follows:
1, trolley track; 2, tooth bar; 3, dolly car body; 4, the first car wheel; The 4 ', second car wheel; 5, the first gear; The 5 ', second gear; 6, the first torque overload protection power-transfer clutch; The 6 ', second torque overload protection power-transfer clutch; 7, the first ratchet stop; The 7 ', second ratchet stop; 8, the first volute spring; The 8 ', second volute spring; 9, the first adapter shaft; The 9 ', second adapter shaft; 10, the first axletree; The 10 ', second axletree; 11, the first gear wheel shaft; The 11 ', second gear wheel shaft; 12, ratchet; 13, ratchet; 14, oil cylinder.
The specific embodiment
Below in conjunction with accompanying drawing, describe performance of the present invention in detail, but it does not form limitation of the invention, only do for example.By explanation, advantage of the present invention will become more clear and easily understand simultaneously.
As Figure 1-4, a kind of bridge crane pull-type carriage energy-saving driving device.It is characterized in that: comprise dolly car body 3, be positioned at trolley track 1 and the tooth bar 2 of dolly car body 3 both sides, dolly car body 3 and axletree 10(10 ') affixed; Car wheel 4(4 ') by axletree 10(10 ') be connected with dolly car body 3 and can on trolley track 1, walk; Torque overload protection power-transfer clutch 6(6 ') with adapter shaft 9(9 ') by ratchet stop 7(7 ') be connected, ratchet stop 7(7 ' wherein) be used for control linkage axle 9(9 ') rotation direction, torque overload protection power-transfer clutch 6(6 ') be used for protecting volute spring 8(8 '); Gear 5(5 ') be arranged on gear adapter shaft 11(11 ') two ends and be meshed with tooth bar 2.
Tooth bar 2 is parallel to trolley track 1, is arranged in the interior survey of trolley track 1.
Car wheel 4(4 ') contact with trolley track 1 for carrying, gear 5(5 ') be not used in carrying with tooth bar 2, only for driving dolly 3 motions.
Gear 5(5 ') by gear adapter shaft 11(11 ') protect power-transfer clutch 6(6 ' with torque overload) be connected.Its middle gear 5(5 ') and torque overload protection power-transfer clutch 6(6 ') with gear adapter shaft 11(11 ') affixed.Torque overload protection power-transfer clutch 6(6 ') the other end and ratchet stop 7(7 ') affixed.
Ratchet stop 7(7 ') ratchet 13 is placed on dolly car body with the oil cylinder of controlling ratchet, and ratchet 12 is fixed on power-transfer clutch 6.
Ratchet stop 7(7 ') ratchet 12 other ends and adapter shaft 9(9 ') affixed, volute spring 8(8 ') be placed on adapter shaft 9(9 ') on, one end also interior crimp end is fixed on adapter shaft 9(9 ') on, also outer crimp end and dolly car body 3 are affixed for the other end, are used for stored energy and driving dolly; Adapter shaft 9(9 ') be connected by bearing with dolly car body 3 and can rotate.
The first gear adapter shaft 11 and the second gear wheel shaft 11 ' are parallel to each other, and the volute spring 8 on the first gear adapter shaft 11 is contrary with the installation direction of volute spring 8 ' on the second gear wheel shaft 11 '; Ratchet stop 7 on the first gear adapter shaft 11 is contrary with the installation direction of ratchet stop 7 ' on the second gear wheel shaft 11 '.
As shown in Figure 2, ratchet stop 7(7 ') adopt external toothing ratchet stop.When ratchet stop is in state as shown in the figure, when ratchet 13 inserts ratchet 12 tooth paddy, can only carry out unidirectional clickwise, actv. prevents that volute spring energy from discharging and drives adapter shaft reversion separately.If want contrarotation to need to make ratchet depart from ratchet by the control of oil cylinder, ratchet rotated freely.
Suppose that dolly is to right-hand movement as shown in the figure.
At volute spring 8(8 ') start before energy storage, the first torque overload protection power-transfer clutch 6 and the second torque overload protection power-transfer clutch 6 ' are all in relaxation state, and dolly normally travels.Now, the first adapter shaft 9 and the second adapter shaft 9 ' are in relaxed state.
As volute spring 8(8 ') while starting energy storage, the first torque overload protection power-transfer clutch 6 compresses, and the second torque overload protection power-transfer clutch 6 ' loosens.Now, the first gear wheel shaft 11 and the first adapter shaft 9 keep synchronized rotation, and as Fig. 4, the rotation of the first adapter shaft 9 has driven and has been placed in that one end rotation that on the first adapter shaft 9, the first volute spring 8 is connected with the first adapter shaft 9, makes the first volute spring 8 energy storage.After energy storage finishes, due to the effect of the first ratchet stop 7, the energy that the first volute spring 8 is stored can not discharge automatically, guarantees that the first volute spring 8 can not drive the first adapter shaft 9 and the first gear wheel shaft 11 to rotate backward.After dolly end-of-job, to control the ratchet 13 of the first ratchet stop 7 and decontrol ratchet 12, the energy of storing by the first volute spring 8 discharges and drives the first adapter shaft 9 and the first gear wheel shaft 11 to rotate, and with this, by gear 5, drives dolly to return.Until after the energy of the first volute spring 8 storage discharges completely, loosen the first torque overload protection power-transfer clutch 6.Prevent that the first volute spring 8 from rotating backward the operation that affects dolly.
If dolly moves along left as shown in the figure.
Before volute spring starts energy storage, the second torque overload protection power-transfer clutch 6 ' and the first torque overload protection power-transfer clutch 6 are all in relaxation state, and dolly normally travels.Now, the second adapter shaft 9 ' and the first adapter shaft 9 are in relaxed state.
When volute spring starts energy storage, the second torque overload protection power-transfer clutch 6 ' compresses, and the first torque overload protection power-transfer clutch 6 loosens.Now, the second gear wheel shaft 11 ' and the second adapter shaft 9 ' keep synchronized rotation, and the rotation of the second adapter shaft 9 ' has driven and has been placed in one end rotation that upper the second volute spring 8 ' of the second adapter shaft 9 ' is connected with the second adapter shaft 9 ', makes volute spring energy storage.After energy storage finishes, due to the effect of the second ratchet stop, the energy that the second volute spring 8 ' is stored can not discharge automatically, guarantees that the second volute spring can not drive the second adapter shaft 9 ' and the second gear wheel shaft 11 ' to rotate backward.After dolly end-of-job, to control the ratchet 13 of the second ratchet stop 7 ' and decontrol ratchet 12, the energy of storing by the second volute spring 8 ' discharges and drives the second adapter shaft 9 ' and the second gear wheel shaft 11 ' to rotate, and with this, drives dolly to return.Until after the energy of the second volute spring 8 ' storage discharges completely, loosen the second torque overload protection power-transfer clutch 6 '.Prevent that the second volute spring 8 ' from rotating backward the operation that affects dolly.
Concrete embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various modifications or supplement or adopt similar mode to substitute described concrete embodiment, but can not depart from spirit of the present invention or surmount the defined scope of appended potentiality claim.
Claims (9)
1. a bridge crane pull-type carriage energy-saving driving device, is arranged on dolly car body, and both sides, dolly car body below arrange trolley track, and trolley track coordinates with car wheel and makes dolly can on trolley track, walk and carry dolly weight; It is characterized in that: dolly car body below, the inner side of two trolley tracks arranges a pair of tooth bar parallel with trolley track, and two tooth bars are symmetrical with respect to dolly car body line of centers; With the tooth bar rotating adapter shaft that pair of parallel is set below dolly car body perpendicularly, a gear adapter shaft is docked respectively in the outside, two ends of each adapter shaft, the external side end of each gear adapter shaft all connects one and tooth bar gears in mesh, and the medial extremity of each gear adapter shaft is all fixedly connected with a torque overload protection power-transfer clutch; A ratchet stop and a volute spring are also set on each adapter shaft; The ratchet and pawl that ratchet stop comprises external toothing; ratchet and dolly car body are affixed; ratchet is fixed on the torque overload protection power-transfer clutch of corresponding side; the affixed rotation direction with control linkage axle of ratchet inner side end and adapter shaft; volute spring is placed on adapter shaft in ratchet inner side; volute spring one end and adapter shaft are fixed, and the other end and dolly car body are fixing with stored energy or driving dolly.
2. bridge crane pull-type carriage energy-saving driving device according to claim 1, is characterized in that: the installation direction of the volute spring on two adapter shafts is contrary; The installation direction of two ratchet stops is contrary; Make along dolly body movement direction, the volute spring being always positioned on the adapter shaft in the place ahead drives adapter shaft and gear adapter shaft to rotate stored energy or drives dolly.
3. bridge crane pull-type carriage energy-saving driving device according to claim 1 and 2, is characterized in that: horizontal the inserting of interior crimp end of volute spring is fixed on adapter shaft, and outer crimp end and dolly car body are curling fixing.
4. bridge crane pull-type carriage energy-saving driving device according to claim 3, is characterized in that: ratchet is by hydraulic oil cylinder driving, and oil cylinder and ratchet all affixed with dolly car body,
5. according to the bridge crane pull-type carriage energy-saving driving device described in claim 1 or 2 or 4, it is characterized in that: the central axis of ratchet and adapter shaft and gear adapter shaft axis are located along the same line.
6. bridge crane pull-type carriage energy-saving driving device according to claim 5, is characterized in that: wheel and rack is not used in carrying, only for driving moving of car.
7. according to the bridge crane pull-type carriage energy-saving driving device described in claim 1 or 2 or 4 or 6, it is characterized in that: each adapter shaft is connected with dolly car body by bearing.
8. bridge crane pull-type carriage energy-saving driving device according to claim 7, is characterized in that: dolly car body and axletree are affixed, and car wheel is arranged on axletree.
9. according to the bridge crane pull-type carriage energy-saving driving device described in 8 behind claim 1 or 2 or 4 or 6, it is characterized in that: the adapter shaft and the gear adapter shaft that are positioned at the place ahead are respectively the first adapter shaft and the first gear adapter shaft, the first volute spring on the first adapter shaft is before starting energy storage, two torque overload protection power-transfer clutchs are all in relaxation state, and dolly normally travels; Now, two adapter shafts are in relaxed state;
When the volute spring on the adapter shaft in the place ahead starts energy storage, the first torque overload protection power-transfer clutch that the first adapter shaft is corresponding compresses, the second torque overload protection clutch release that rear the second adapter shaft is corresponding; Now, the first gear wheel shaft and the first adapter shaft that this adapter shaft is corresponding keep synchronized rotation, and the rotation of the first adapter shaft drives the interior crimp end that the first volute spring is connected with the first adapter shaft to rotate, and makes the first volute spring energy storage;
After energy storage finishes, due to the effect of the first ratchet stop on the first adapter shaft, the energy that the first volute spring is stored can not discharge automatically, guarantees that the first volute spring can not drive the first adapter shaft and the first gear wheel shaft to rotate backward; After dolly end-of-job, control the ratchet of the first ratchet stop and decontrol ratchet, the energy of storing by the first volute spring discharges and drives the first adapter shaft and the first gear wheel shaft to rotate, with this, by gear drive dolly, return, until after the energy of the first volute spring storage discharges completely, loosen the first torque overload protection power-transfer clutch, prevent that the first volute spring from rotating backward the operation that affects dolly;
Utilize the second volute spring energy storage on the second adapter shaft or drive the mode of dolly identical with the first volute spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310729419.6A CN103663139B (en) | 2013-12-26 | 2013-12-26 | A kind of bridge crane pull-type carriage energy-saving driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310729419.6A CN103663139B (en) | 2013-12-26 | 2013-12-26 | A kind of bridge crane pull-type carriage energy-saving driving device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103663139A true CN103663139A (en) | 2014-03-26 |
| CN103663139B CN103663139B (en) | 2016-01-06 |
Family
ID=50302073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310729419.6A Expired - Fee Related CN103663139B (en) | 2013-12-26 | 2013-12-26 | A kind of bridge crane pull-type carriage energy-saving driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103663139B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019214459A (en) * | 2018-06-13 | 2019-12-19 | 利雄 近藤 | Movable type portal crane system for inclined plane |
| CN117879123A (en) * | 2024-03-13 | 2024-04-12 | 华芯智上半导体设备(上海)有限公司 | Energy recovery device, crown block conveying system and control method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003161359A (en) * | 2001-11-26 | 2003-06-06 | Toshiya Fujii | Apparatus for conserving and recycling energy |
| CN102700882A (en) * | 2012-06-22 | 2012-10-03 | 江苏迅捷装具科技有限公司 | Volute energy storage pushing trolley with braking device |
| CN202642619U (en) * | 2012-06-22 | 2013-01-02 | 江苏迅捷装具科技有限公司 | Scroll energy-storing pushing trolley with braking device |
| CN203682907U (en) * | 2013-12-18 | 2014-07-02 | 武汉理工大学 | Elastic energy-saving device on crane carriage |
-
2013
- 2013-12-26 CN CN201310729419.6A patent/CN103663139B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003161359A (en) * | 2001-11-26 | 2003-06-06 | Toshiya Fujii | Apparatus for conserving and recycling energy |
| CN102700882A (en) * | 2012-06-22 | 2012-10-03 | 江苏迅捷装具科技有限公司 | Volute energy storage pushing trolley with braking device |
| CN202642619U (en) * | 2012-06-22 | 2013-01-02 | 江苏迅捷装具科技有限公司 | Scroll energy-storing pushing trolley with braking device |
| CN203682907U (en) * | 2013-12-18 | 2014-07-02 | 武汉理工大学 | Elastic energy-saving device on crane carriage |
Non-Patent Citations (1)
| Title |
|---|
| 邹光明: "以势能驱动的涡卷弹簧储能小车研究", 《机械设计》, vol. 29, no. 4, 30 April 2012 (2012-04-30), pages 32 - 35 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019214459A (en) * | 2018-06-13 | 2019-12-19 | 利雄 近藤 | Movable type portal crane system for inclined plane |
| CN117879123A (en) * | 2024-03-13 | 2024-04-12 | 华芯智上半导体设备(上海)有限公司 | Energy recovery device, crown block conveying system and control method |
| CN117879123B (en) * | 2024-03-13 | 2024-05-24 | 华芯智上半导体设备(上海)有限公司 | Energy recovery device, crown block conveying system and control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103663139B (en) | 2016-01-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103122715B (en) | A kind of automobile carrying device | |
| CN103129568A (en) | Multifunctional overhead line system work vehicle | |
| CN105003109A (en) | Intelligent stereo garage car storing and taking device | |
| WO2022262352A9 (en) | Inner ratchet mechanism-based bidirectional anti-slip device for monorail crane | |
| CN201857578U (en) | Traction type mobile car | |
| CN103663139B (en) | A kind of bridge crane pull-type carriage energy-saving driving device | |
| CN101121262A (en) | Mechanical arm with separate clamping and lifting mechanism for carrying automobile | |
| CN105128978A (en) | Robot chassis and service robot | |
| CN202358101U (en) | Rail vehicle | |
| CN106882280A (en) | Large-tonnage radio gang formula all-direction moving unit based on CAN control | |
| CN202011699U (en) | Drive mechanism applied to rubber-tired container gantry crane | |
| CN205819196U (en) | A kind of rail mounted wireless remote control transport vehicle | |
| CN106004478A (en) | Traction-type electric platform trolley capable of automatic following | |
| CN102815211B (en) | Electric transport cart | |
| CN203845692U (en) | Wheel-rail style girder crane running mechanism | |
| CN201863866U (en) | Three-car transfer platform used for multifunctional single-car dumper | |
| CN105523484B (en) | A kind of tunnel measure of relief and its device | |
| CN204250056U (en) | Cellar for storing things, tunnel ferry bus | |
| CN210653129U (en) | Emergency track-disengaging device of travelling mechanism and mobile detection platform | |
| CN209815513U (en) | Cross dolly | |
| CN201343033Y (en) | Running gear for trolley | |
| CN206501922U (en) | The large-tonnage radio gang formula all-direction moving unit controlled based on CAN | |
| CN105346608A (en) | Full-axis-turning multi-axis-driving electric automobile train | |
| CN204821770U (en) | Caterpillar crane travel driving unit | |
| CN103145034A (en) | Track-type crane and running mechanism thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20160106 Termination date: 20171226 |