CN202744241U - Lifting machine - Google Patents
Lifting machine Download PDFInfo
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- CN202744241U CN202744241U CN 201220420596 CN201220420596U CN202744241U CN 202744241 U CN202744241 U CN 202744241U CN 201220420596 CN201220420596 CN 201220420596 CN 201220420596 U CN201220420596 U CN 201220420596U CN 202744241 U CN202744241 U CN 202744241U
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- bearing pin
- connecting rod
- hinged
- vehicle frame
- displacement
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Abstract
The utility model relates to a lifting machine which comprises a carframe body, a telescopic arm which is connected with the carframe body, a pitching oil cylinder which is used for adjusting a pitching angle of the telescopic arm, an electric system which controls motion of the telescopic and/or the pitching oil cylinder, a steering bridge which is hinged with the carframe body through a pin shaft, and a displacement detection device which is connected with the electric system. An allowance is arranged on an assembling face which is hinged with the pin shaft and allows the pin shaft to displace up and down in relative mode. When the displacement detection device detects that relative displacement exists in the pin shaft which is relative to the carframe body or the steering bridge, the electric system is triggered and emergent braking is carried out. Due to the fact that the allowance which can allow the pin shaft to carry out relative displacement is directly machined on a hinged assembling face of the pin shaft, displacement is provided for tipping of the carframe body, the displacement detection device is utilized to detect the displacement, and emergent braking can be rapidly carried out, so that tipping phenomenon can be avoided. The lifting machine has the advantages of being simple in structure, high in sensitivity, low in processing and manufacturing cost.
Description
Technical field
The utility model belongs to the transport trolley mechanical field, relates to a kind of lifting machine, particularly a kind of lifting machine of tumbling of can effectively preventing.
Background technology
Lifting machine is more common a kind of transportation means, is used for transferring goods by unsettled mode of slinging, such as container face crane, hoisting crane etc.Because the cargo weight of handling is larger usually, the moment that produces forward is very large, if the overall weight of vehicle frame itself and counterweight thereof is not enough to this moment of balance, cause easily tumbling of car load, therefore usually all need to take certain countrmeasure, existing lifting machine all can have anti-tipping mechanism or device mostly.But existing these anti-overturn mechanisms or device all exist complex structure, defective that manufacturing cost is high.
The utility model content
The purpose of this utility model is to have the problems referred to above for existing technology, has proposed a kind of simple in structure, low cost of manufacture, easy trolley of transformation of its overturn-preventing mechanism.
The purpose of this utility model can realize by following technical proposal:
A kind of lifting machine, comprise vehicle frame, the telescopic boom that is connected with described vehicle frame, in order to the pitching oil cylinder of regulating described telescopic boom pitch angle and control described telescopic boom and/or the electric system of pitching cylinder movement, also comprise by the hinged steeraxle of bearing pin and described vehicle frame, with the surplus that is provided with the relative upper and lower displacement of the described bearing pin of permission on the hinged fitting surface of described bearing pin, described lifting machine also comprises the displacement detector that is connected with described electric system, and described displacement detector triggers described electric system when there is relative displacement in described bearing pin with respect to described vehicle frame or steeraxle and carries out emergency braking detecting.
In above-mentioned lifting machine, described bearing pin has two, be respectively front end bearing pin and rear end bearing pin, and hinged with the front-end and back-end of described steeraxle respectively, be provided with the surplus that allows described rear end bearing pin relative displacement with the fitting surface of described rear end bearing pin, described displacement detector detects the relative displacement of described rear end bearing pin.
In above-mentioned lifting machine, the hinged fitting surface of described vehicle frame and described bearing pin is flush fit, and being provided with the hinged fitting surface of bearing pin of described steeraxle allows described bearing pin to the surplus of top offset.
In above-mentioned lifting machine, described steeraxle comprises the first axle sleeve that is set on the described bearing pin outside face, the hinged inside face of described the first axle sleeve and described bearing pin is waist shaped hole, and allowing described bearing pin is the width between centers of two the semicircle cambered surfaces in described waist shaped hole two ends to the surplus of top offset.
In above-mentioned lifting machine, described displacement detector comprises the first connecting rod mechanism of displacement enlargement, described first connecting rod mechanism comprises first connecting rod and the second connecting rod that an end is hinged, the other end of described first connecting rod and described bearing pin or vehicle frame are hinged, the described second connecting rod other end is provided with the switch that triggers described electric system, have the hinge-point hinged with described steeraxle between the described second connecting rod two ends, described hinge-point to the distance of hinged second connecting rod one end of first connecting rod less than the distance of described hinge-point to the second connecting rod other end that is provided with switch.
In above-mentioned lifting machine, described displacement detector comprises measures the pressure sensor that described bearing pin is applied to the pressure on the described steeraxle, also comprises the switch that triggers described electric system when described pressure sensor observed reading during less than critical value.
In above-mentioned lifting machine, the hinged fitting surface of described steeraxle and described bearing pin is flush fit, and the hinged fitting surface of described vehicle frame and described bearing pin is provided with and allows described bearing pin with respect to the surplus of the downward relative displacement of vehicle frame.
In above-mentioned lifting machine, described vehicle frame comprises the second axle sleeve that is set on the described bearing pin outside face, the hinged inside face of described the second axle sleeve and described bearing pin is waist shaped hole, and allowing described bearing pin is the width between centers of two the semicircle cambered surfaces in described waist shaped hole two ends with respect to the surplus of the downward relative displacement of vehicle frame.
In above-mentioned lifting machine, described displacement detector comprises the second connecting rod mechanism of displacement enlargement, described second connecting rod mechanism comprises third connecting rod and the 4th connecting rod that an end is hinged, the other end of described third connecting rod and described vehicle frame are hinged, described the 4th connecting rod other end is provided with the switch that triggers described electric system, have the hinge-point hinged with described steeraxle or bearing pin between described the 4th connecting rod two ends, described hinge-point to the distance of hinged the 4th connecting rod one end of third connecting rod less than the distance of described hinge-point to the 4th connecting rod other end that is provided with switch.
In above-mentioned lifting machine, described displacement detector comprises measures the pressure sensor that described vehicle frame is applied to the pressure on the described bearing pin, also comprises the switch that triggers described electric system when described pressure sensor observed reading during less than critical value.
Compared with prior art, lifting machine of the present utility model, directly the hinge mounted face at bearing pin processes the surplus that allows the bearing pin relative displacement, namely can be vehicle frame the required displacement of tumbling is provided, and trigger electric system after utilizing displacement detector to detect the generation of this displacement, impel its emergency braking to make to prevent the action of tumbling, can avoid rapidly the generation of tumbling.This lifting machine is simple in structure, and reaction sensitivity is high, processing, low cost of manufacture.
Description of drawings
Fig. 1 is the structural representation of lifting machine of the present utility model;
Fig. 2 is the part sectional view of the steeraxle of lifting machine shown in Figure 1;
Fig. 3 is the local I enlarged drawing in the steeraxle shown in Figure 2;
Fig. 4 is the local I I enlarged drawing in the steeraxle shown in Figure 2;
Fig. 5 is the cutaway view of the axle sleeve among Fig. 4;
Fig. 6 is the structural representation of the displacement detector among Fig. 3.
The specific embodiment
Below be that specific embodiment of the utility model also is further described the technical solution of the utility model by reference to the accompanying drawings, but the utility model is not limited to these embodiment.
A kind of lifting machine with anti-tipping function of the utility model protection; can be various hoisting cranes, container in hoisting status machine and other are by the unsettled transport trolley tool that hangs thing of telescopic boom; its sketch as shown in Figure 1; comprise the vehicle frame 1 that consists of agent structure, the telescopic boom 2 hinged with vehicle frame 1 rear end; the pitching oil cylinder 4 of comprise also that an end and vehicle frame 1 front end are hinged, the other end and telescopic boom 2 are hinged, pitching oil cylinder 4 is used for regulating telescopic boom 2 with respect to the pitch angle of vehicle frame 1.Telescopic boom 2 front ends are equipped with the suspender 3 of clamping or hook goods 30, shown in Fig. 1 be suspender 3 clamping freight container the time scheme drawing.
In the first embodiment, the structure of steeraxle 6 is the beam structure perpendicular to paper in the middle of this pontic as shown in Figure 2, and steering cylinder 60 is positioned at the middle part.The front-end and back-end of steeraxle 6 are respectively equipped with lug, the position of vehicle frame 1 corresponding two lugs is respectively equipped with two draw-in grooves, be respectively front end draw-in groove 11 and rear end draw-in groove 12, wherein, the lug of front end inserts in the front end draw-in groove 11 and realizes hingedly by front end bearing pin 81, and the lug of rear end inserts in the rear end draw-in groove 12 and realizes hinged by rear end bearing pin 82.Therefore front end bearing pin 81 and rear end bearing pin 82 these two bearing pins are hinged together steeraxle 6 and vehicle frame 1, and mounting structure corresponding to its front-end and back-end distinguished as shown in Figure 3, Figure 4.
Fig. 3 is the mounting structure of steeraxle 6 rear ends, as shown in Figure 3, rear end bearing pin 82 passes rear end draw-in groove 12 1 sidewalls, rear end lug 62, rear end draw-in groove 12 another sidewalls successively, the face of cylinder of wherein offering on the rear end draw-in groove 12 is the fitting surface hinged with rear end bearing pin 82, this fitting surface is flush fit, namely rear end bearing pin 82 with respect to rear end draw-in groove 12 static or can only around axis rotate and can not radial runout (for example radial displacement can be considered less than 1mm can not radial runout).Rear end lug 62 with the hinged fitting surface of rear end bearing pin 82 be easy fit, and have the surplus that allows rear end bearing pin 82 upper and lower displacements in this fitting surface.
In the present embodiment, the upper and lower displacement surplus utilizes waist shaped hole to realize.Such as Fig. 3, as shown in Figure 5, steeraxle 6 has the first axle sleeve 92, it is set on rear end bearing pin 82 outside faces.The outside face of the first axle sleeve 92 is also captiveed joint with 62 assemblings of rear end lug, is diameter
The face of cylinder; Inside face is the fitting surface hinged with rear end bearing pin 82, is waist shaped hole, comprise two in opposite directions semi-cylindrical and be engaged on two pair of parallel planes between the semi-cylindrical.The diameter of rear end bearing pin 82 is identical with the semi-cylindrical diameter of waist shaped hole, and then allowing rear end bearing pin 82 is the width between centers L1 of two semicircle cambered surfaces to the surplus of top offset.
The mounting structure of steeraxle 6 front ends as shown in Figure 4, similar to the mounting structure of front end, front end bearing pin 81 passes front end draw-in groove 11 and thereby front end lug 61 is hinged with the two, and front end draw-in groove 11 is flush fit with the fitting surface of front end bearing pin 81, front end lug 61 is easy fit by the fitting surface of axle sleeve 91 and front end bearing pin 81 also, and also take the kidney-shaped pore structure, the width between centers of the two halves arc surface of waist shaped hole is L2, and L2＜L1 is arranged.The term of reference of L1 is not advised too large, and the L1 value causes whole physical construction loose than conference, preferably in the 5mm scope.The size of L2 satisfies and can not interfere with rear end bearing pin 82 and can not be as the criterion to top offset.
Under normal handling state, the weight of counterweight 5 and vehicle frame 1 is enough to the external moment that the goods 30 of balance handling brings, then vehicle frame 1 all will be pressed on the back axle 6 together with draw-in groove and corresponding friction tight bearing pin thereof, then the lower arc surface contact of the lower surface of bearing pin and corresponding waist shaped hole.In case the excessive vehicle frame 1 that causes of external moment that goods 30 is introduced has the trend of tumbling, the bearing pin lower surface will leave waist shaped hole, and by the drive of the fluting of vehicle frame 1 and to top offset.Because the displacement meeting of vehicle frame 1 rear end greater than the displacement of front end, exists to top offset as long as therefore detect rear end bearing pin 82, and triggers electric system and carry out emergency braking, can effectively prevent the generation of tumbling.
The displacement detector of present embodiment is first connecting rod mechanism 100 as shown in Figure 6, can amplify the displacement of bearing pin, specifically comprises first connecting rod 101, second connecting rod 103 and switch 104.Wherein, first connecting rod 101 1 ends are hinged on the rear end draw-in groove 12 of rear end bearing pin 82 or vehicle frame 1, the other end and second connecting rod 103 are hinged, second connecting rod 103 other ends are provided with the switch 104 that triggers electric system, and have the hinge-point 102 hinged with the rear end lug 62 of steeraxle 6 between second connecting rod 103 two ends.This hinge-point 102 to the distance of hinged second connecting rod 103 1 ends (left end of second connecting rod 103 among Fig. 6) of first connecting rod 101 less than the distance of described hinge-point 102 to second connecting rod 103 other ends that are provided with switch 104 (right-hand member of second connecting rod 103 among Fig. 8).
Such design, so that rear end bearing pin 82 or vehicle frame 1 with respect to second connecting rod 103 after the transmitting by steeraxle 6 from first connecting rod 101 to top offset after, its displacement of the other end at second connecting rod 103 is exaggerated, magnification factor be hinge-point 102 to the distance at two ends than.Therefore, 1 need of vehicle frame have a small amount of displacement to be detected rapidly, and trigger electric systems by second connecting rod 103 drive switches 104 and impel it to carry out as early as possible emergency braking.
In this embodiment, because being fitting surface at bearing pin, relative displacement occurs, can take anti-tipping measure as long as detect the relative displacement of bearing pin, it is simple in structure, and detection sensitivity is high.Prior art for example need to move up and down pair the setting of the second support among the Chinese patent CN102616684A, and this moving sets must need to process and install the another set of member that relatively moves, the structure of the first support and the second support can not share, so that complex structure, processing mold increases, improve tooling cost, and two fitting surfaces with bearing pin in replacing steeraxle 6 front-end and back-end of the needs in the present embodiment get final product, also namely design and change two different axle sleeves of waist shaped hole and get final product, and steeraxle 6 itself is integrated, and part is few, simple in structure, work programme is few, cost is low.And with respect to another part Chinese patent 200520050443.8, thereafter upper bracket is connected centering block with the rami posterior inferior frame and connects, rely on centering block that relative displacement is provided, increased a member that volume is larger, increased the difficulty of design, manufacturing and fit on, present embodiment then need not to increase in addition member, directly relies on the surplus on the hinged fitting surface of bearing pin that relative displacement is provided, structure is simpler, has embodied the exquisite and progress in the design.
In a second embodiment, the structures such as steeraxle 6, vehicle frame 1, bearing pin are all same as the previously described embodiments, displacement detector can be rocker mechanism, it is a hinged sleeve on the steeraxle 6, it is hinged that one rocking bar passes this sleeve and an end and bearing pin or vehicle frame 1, and the displacement of the other end is scanned and is provided with the switch that triggers electric system on the track.Then vehicle frame 1 is tumbled when driving the bearing pin generation to top offset, and the rocking bar other end swings also opens switch.
In the 3rd embodiment, the structures such as steeraxle 6, vehicle frame 1, bearing pin are all same as the previously described embodiments, displacement detector comprises pressure sensor and switch, pressure sensor is used for measuring rear end bearing pin 82 and is applied to the pressure that turns on the first axle sleeve 92, when the force value of measuring when for example pressure is 0 less than critical value described switch will trigger electric system and carry out emergency braking because the little surperficial vehicle frame 1 of pressure will or begin to occur relative displacement at this moment.
In the 4th embodiment, rear end lug 62 and the rear end bearing pin 82 of steeraxle 6 are flush fit, and the rear end draw-in groove of vehicle frame 1 and rear end bearing pin 82 are easy fit, provide and allow rear end bearing pin 82 with respect to the surplus of vehicle frame 1 to bottom offset (actual motion be vehicle frame 1 with respect to rear end bearing pin 82 to top offset), this surplus is to be provided by the second axle sleeve that is set on the bearing pin outside face of rear end that the rear end draw-in groove has, the hinged inside face of the second axle sleeve and rear end bearing pin is waist shaped hole, and then the deflection yoke of rear end bearing pin is the width between centers of these two semicircle cambered surfaces in waist shaped hole two ends.
The assembling of the front end lug 61 of steeraxle 6, front end bearing pin 81, front end draw-in groove 11 is identical with the assembly relation of the rear end corresponding component of present embodiment, just similarly, the deflection yoke of front end bearing pin 81 is less than the rear end bearing pin, and perhaps the deflection yoke of front end bearing pin 81 is 0.
Accordingly, in the present embodiment, displacement detector is the second connecting rod mechanism of displacement enlargement, its structure and first connecting rod mechanism 100 are similar, comprise third connecting rod and the 4th connecting rod, one end of third connecting rod and steeraxle 6 or rear end bearing pin are hinged, and the other end and the 4th connecting rod one end are hinged, and the correspondence position of the other end of the 4th connecting rod is provided with the switch that triggers electric system.Similarly, have the hinge-point hinged with steeraxle 6 or rear end bearing pin between described the 4th connecting rod two ends, described hinge-point is to the distance of the 4th connecting rod one end that the is provided with switch distance greater than this hinge-point to the four connecting rod other ends.
In the 5th embodiment, other structures are all identical with the 4th embodiment, displacement detector is similar to the displacement detector of the second embodiment, just rocking bar one end is hinged to the vehicle frame 1 of top offset with generation, in order to detect the rear end bearing pin with respect to vehicle frame 1 to bottom offset (also being the actual in top offset of vehicle frame 1), and after detecting displacement, open the switch triggering electric system.
In the 6th embodiment, other structures are identical with the 4th embodiment, displacement detector comprises pressure sensor and switch, and this pressure sensor is used for inspection vehicle support body 1 and is applied to pressure on the rear end bearing pin 82, and triggers the switch of electric system during less than critical value in observed reading.
In the 7th embodiment, other structures except displacement detector can be identical with the first embodiment, also can be identical with the 3rd embodiment, and displacement detector is projection or the block that is arranged on the vehicle frame 1, can trigger the switch that electric system carries out emergency braking and be fixed on the steeraxle 6, and on the path of this switch when being positioned at this projection or block with vehicle frame 1 displacement, in case then relative displacement occurs vehicle frame 1, this projection or block just can touch this switch, thereby trigger electric system.
Need to prove that above-mentioned displacement detector is not limited to also can be used for front end bearing pin 81 for rear end bearing pin 82; Simultaneously, the inevitable sub-headend of steeraxle 6 and rear end, can be only in front end latter rear end or the middle part lug be set come with vehicle frame 1 hinged by bearing pin; Even steeraxle 6 is ledge arrangement not, but relies on the self structure of steering cylinder 60 and the body of a bridge thereof to design articulated manner with vehicle frame 1; Perhaps, being not limited in waist shaped hole in above-described embodiment with the hinged fitting surface of bearing pin, can also be slotted eye, rectangle square hole or other erose holes; Or, in order to reduce vibration, between axle sleeve and bearing pin, be provided with elastic caoutchouc packing ring etc., but this packing ring allows still after elastic deformation bearing pin to have relative displacement, etc.Above-mentioned these situations all belong to the claimed scope of the utility model, are not limited in above-described embodiment.The utility model person of ordinary skill in the field can do various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Lifting machine of the present utility model, directly the hinge mounted face at bearing pin processes the surplus that allows the bearing pin relative displacement, namely can be vehicle frame 1 the required displacement of tumbling is provided, and trigger electric system after utilizing displacement detector to detect the generation of this displacement, impel its emergency braking to make to prevent the action of tumbling, can avoid rapidly the generation of tumbling.The advantage of the utility model maximum is, do not increase any parts or physical construction, only rely on the surplus on the fitting surface can reserve relative displacement, and fitting surface is one inevitable in manufacturing process work programme, therefore basically do not increase raw MAT'L, processing, the manufacturing cost of original trolley fully, anti-tipping function can be provided, with respect to the other technologies scheme of prior art, can greatly reduce cost.
Claims (10)
1. lifting machine, comprise vehicle frame, the telescopic boom that is connected with described vehicle frame, in order to the pitching oil cylinder of regulating described telescopic boom pitch angle and control described telescopic boom and/or the electric system of pitching cylinder movement, it is characterized in that, also comprise by the hinged steeraxle of bearing pin and described vehicle frame, with the surplus that is provided with the relative upper and lower displacement of the described bearing pin of permission on the hinged fitting surface of described bearing pin, described lifting machine also comprises the displacement detector that is connected with described electric system, and described displacement detector triggers described electric system when there is relative displacement in described bearing pin with respect to described vehicle frame or steeraxle and carries out emergency braking detecting.
2. lifting machine according to claim 1, it is characterized in that, described bearing pin has two, be respectively front end bearing pin and rear end bearing pin, and hinged with the front-end and back-end of described steeraxle respectively, be provided with the surplus that allows described rear end bearing pin relative displacement with the fitting surface of described rear end bearing pin, described displacement detector detects the relative displacement of described rear end bearing pin.
3. lifting machine according to claim 1 is characterized in that, the hinged fitting surface of described vehicle frame and described bearing pin is flush fit, and being provided with the hinged fitting surface of bearing pin of described steeraxle allows described bearing pin to the surplus of top offset.
4. lifting machine according to claim 3, it is characterized in that, described steeraxle comprises the first axle sleeve that is set on the described bearing pin outside face, the hinged inside face of described the first axle sleeve and described bearing pin is waist shaped hole, and allowing described bearing pin is the width between centers of two the semicircle cambered surfaces in described waist shaped hole two ends to the surplus of top offset.
5. lifting machine according to claim 3, it is characterized in that, described displacement detector comprises the first connecting rod mechanism of displacement enlargement, described first connecting rod mechanism comprises first connecting rod and the second connecting rod that an end is hinged, the other end of described first connecting rod and described bearing pin or vehicle frame are hinged, the described second connecting rod other end is provided with the switch that triggers described electric system, have the hinge-point hinged with described steeraxle between the described second connecting rod two ends, described hinge-point to the distance of hinged second connecting rod one end of first connecting rod less than the distance of described hinge-point to the second connecting rod other end that is provided with switch.
6. lifting machine according to claim 3, it is characterized in that, described displacement detector comprises measures the pressure sensor that described bearing pin is applied to the pressure on the described steeraxle, also comprises the switch that triggers described electric system when described pressure sensor observed reading during less than critical value.
7. lifting machine according to claim 1, it is characterized in that, the hinged fitting surface of described steeraxle and described bearing pin is flush fit, and the hinged fitting surface of described vehicle frame and described bearing pin is provided with and allows described bearing pin with respect to the surplus of the downward relative displacement of vehicle frame.
8. lifting machine according to claim 7, it is characterized in that, described vehicle frame comprises the second axle sleeve that is set on the described bearing pin outside face, the hinged inside face of described the second axle sleeve and described bearing pin is waist shaped hole, and allowing described bearing pin is the width between centers of two the semicircle cambered surfaces in described waist shaped hole two ends with respect to the surplus of the downward relative displacement of vehicle frame.
9. lifting machine according to claim 7, it is characterized in that, described displacement detector comprises the second connecting rod mechanism of displacement enlargement, described second connecting rod mechanism comprises third connecting rod and the 4th connecting rod that an end is hinged, the other end of described third connecting rod and described vehicle frame are hinged, described the 4th connecting rod other end is provided with the switch that triggers described electric system, have the hinge-point hinged with described steeraxle or bearing pin between described the 4th connecting rod two ends, described hinge-point to the distance of hinged the 4th connecting rod one end of third connecting rod less than the distance of described hinge-point to the 4th connecting rod other end that is provided with switch.
10. lifting machine according to claim 7, it is characterized in that, described displacement detector comprises measures the pressure sensor that described vehicle frame is applied to the pressure on the described bearing pin, also comprises the switch that triggers described electric system when described pressure sensor observed reading during less than critical value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220420596 CN202744241U (en) | 2012-08-23 | 2012-08-23 | Lifting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220420596 CN202744241U (en) | 2012-08-23 | 2012-08-23 | Lifting machine |
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| Publication Number | Publication Date |
|---|---|
| CN202744241U true CN202744241U (en) | 2013-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220420596 Expired - Fee Related CN202744241U (en) | 2012-08-23 | 2012-08-23 | Lifting machine |
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| CN (1) | CN202744241U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103787205A (en) * | 2014-02-27 | 2014-05-14 | 钦州学院 | Two-degree-of-freedom double-closed-loop combination drive reach stacker |
| CN103803427A (en) * | 2014-02-27 | 2014-05-21 | 钦州学院 | Hybrid-driven front-handling hoisting crane containing single two-degrees-of-freedom closed-loop subchain |
-
2012
- 2012-08-23 CN CN 201220420596 patent/CN202744241U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103787205A (en) * | 2014-02-27 | 2014-05-14 | 钦州学院 | Two-degree-of-freedom double-closed-loop combination drive reach stacker |
| CN103803427A (en) * | 2014-02-27 | 2014-05-21 | 钦州学院 | Hybrid-driven front-handling hoisting crane containing single two-degrees-of-freedom closed-loop subchain |
| CN103787205B (en) * | 2014-02-27 | 2015-11-25 | 钦州学院 | Two-freedom two close cycles combination drive front-handling mobile crane |
| CN103803427B (en) * | 2014-02-27 | 2015-11-25 | 钦州学院 | Containing single two-freedom closed-loop subchain combination drive front-handling mobile crane |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20150823 |
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| EXPY | Termination of patent right or utility model |