CN201980905U - Ground jack of crane and crane with same - Google Patents
Ground jack of crane and crane with same Download PDFInfo
- Publication number
- CN201980905U CN201980905U CN2010206716135U CN201020671613U CN201980905U CN 201980905 U CN201980905 U CN 201980905U CN 2010206716135 U CN2010206716135 U CN 2010206716135U CN 201020671613 U CN201020671613 U CN 201020671613U CN 201980905 U CN201980905 U CN 201980905U
- Authority
- CN
- China
- Prior art keywords
- supporting leg
- hoisting crane
- actuating cylinder
- hydraulic actuating
- bearing pin
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Jib Cranes (AREA)
Abstract
The utility model discloses a ground jack of a crane and the crane with the same. The ground jack of the crane comprises a shaft hole (1) of the ground jack, and a pin roll (2) which can be matched with the shaft hole (1) of the ground jack and a frame shaft hole on a frame of the crane, and further comprises a hydraulic cylinder (3), wherein the upper end of the hydraulic cylinder (3) is connected with the inner side of the top wall (4) of the ground jack of the crane, which is opposite to the shaft hole (1) of the ground jack, and the lower end of the hydraulic cylinder (3) is connected with the upper end of the pin roll (2). Because the hydraulic cylinder is adopted to control the pin roll, the hydraulic cylinder is only needed to be driven for driving the pin roll to move, the locking position and the unlocking position between the ground jack of the crane and the frame of the crane can be switched, furthermore, the ground jack of the crane can be dismantled and assembled, and the operation is more convenient; and moreover, the pin roll and the hydraulic cylinder are integrally arranged in the ground jack of the crane, and are integrally transported along with the ground jack of the crane, so the pin roll can be prevented from being lost. The utility model further comprises a crane which is provided with the ground jack of the crane.
Description
Technical field
The utility model relates to the weight-lifting equipment technical field, particularly a kind of hoisting crane and supporting leg thereof.
Background technology
The construction and the maintenance of main facilitieses such as wind-powered electricity generation facility, nuclear power facility need the weight-lifting equipment of large-tonnage and even super-tonnage.
The weight-lifting equipment of large-tonnage and super-tonnage, car load deadweight reach more than 150 tons usually, can't realize that in this state car load shifts and travels, and some parts of need dismantling are realized complete vehicle weight control, to satisfy the needs that car load shifts and travels.
With the hoisting crane is example, and the hoisting crane supporting leg is its important load bearing component, and the hoisting crane supporting leg carries out bonded assembly by the vehicle frame of connecting device and hoisting crane.
Please refer to Fig. 1 and Fig. 2, Fig. 1 is the structural representation that hoisting crane is installed the supporting leg state in the prior art, and Fig. 2 is in the structural representation of released state for hoisting crane supporting leg and vehicle frame in the prior art.
At present, hoister in large tonnage, its supporting leg 01 often adopt " X " type arrangement form, when work, hoisting crane supporting leg 01 are installed on the vehicle frame 02, when hoisting crane is walked, supporting leg 01 need be disassembled from vehicle frame 02.
Please further with reference to figure 3, Fig. 3 is the structural representation of hoisting crane supporting leg connecting device in the prior art.
At present, hoisting crane supporting leg 01 connecting device normally is made up of bearing pin 03, lubrication connection, bolt and baffle plate, is provided with pin-and-hole on supporting leg 01 and the vehicle frame 02.When supporting leg 01 is installed, at first to align the pin-and-hole of supporting leg 01 and vehicle frame 02, and then bearing pin 03 manually is installed, and Fender lock rationed marketing axle 03 position is installed, lubrication connection is installed at last.
Existing mounting means is simple in structure, and cost is lower, and is comparatively suitable at the product design of non-removable supporting leg 01.But for the weight-lifting equipment of the frequent dismounting supporting leg 01 of needs, when dismounting supporting leg 01, need carry out dismounting to bearing pin 03, in the disassembly process of bearing pin 03,, cause bearing pin 03 dismounting difficulty because operating personal needs M/C, whole unloading process is wasted time and energy, and is very inconvenient; And the bearing pin 03 that disassembles is placed separately, loses easily.
The utility model content
The utility model aims to provide a kind of supporting leg of hoisting crane, can make the dismounting of bearing pin convenient, and can avoid bearing pin to lose.The utility model also provides a kind of hoisting crane that comprises the supporting leg of above-mentioned hoisting crane.
For solving the problems of the technologies described above, the utility model provides a kind of supporting leg of hoisting crane, be provided with the supporting leg axis hole, and the bearing pin that can match with the vehicle frame axis hole on the vehicle frame of described supporting leg axis hole and hoisting crane, it is characterized in that, also comprise hydraulic actuating cylinder, the upper end of described hydraulic actuating cylinder is connected in the inboard with the roof of described supporting leg axis hole supporting leg relative, described hoisting crane, and the lower end of described hydraulic actuating cylinder is connected with the upper end of described bearing pin.
Preferably, the length sum of the minimum length of described hydraulic actuating cylinder and described bearing pin arrives the distance on the plane, top of described supporting leg axis hole greater than the upper end of described hydraulic actuating cylinder, and is less than or equal to the distance of the upper end of described hydraulic actuating cylinder to the baseplane of described supporting leg axis hole.
Preferably, the supporting leg of described hoisting crane is provided with supporting leg otic placode and the orienting sleeve that is positioned at described supporting leg otic placode end face; On described supporting leg otic placode and the described orienting sleeve, be respectively arranged with coaxial first through hole and second through hole with diameter, described supporting leg axis hole is specially described first through hole and described second through hole.
Preferably, the dead in line of the axis of described hydraulic actuating cylinder and described bearing pin.
Preferably, the lower end edge of described bearing pin circumferentially is provided with chamfering.
Preferably, the lower end of described hydraulic actuating cylinder is provided with globoid, and the upper end of described bearing pin is correspondingly provided with the spherical groove that opening makes progress, and described globoid is articulated in described spherical groove.
Preferably, described bearing pin is provided with first cover plate and second cover plate that matches, described first cover plate and described second cover plate are respectively arranged with semi-round first groove and second groove, described first groove is relative with described second slot opening, form a manhole, the diameter of described manhole is less than the diameter of described globoid, and described manhole is set in the connecting portion of described globoid and described hydraulic actuating cylinder.
Preferably, described roof is provided with the mounting groove of the upper end of the described hydraulic actuating cylinder of plug-in mounting, and the upper end edge of described hydraulic actuating cylinder circumferentially is provided with the guiding groove.
The utility model also provides a kind of hoisting crane, comprise vehicle frame and with the supporting leg of described vehicle frame bonded assembly hoisting crane, the supporting leg of described hoisting crane is the supporting leg of above-described hoisting crane.
The beneficial effects of the utility model are:
The supporting leg of the hoisting crane that the utility model provides adopts Driven by Hydraulic Cylinder control bearing pin, and the upper end of hydraulic actuating cylinder is connected in the inboard of the roof of supporting leg relative with the supporting leg axis hole, hoisting crane, and the lower end of hydraulic actuating cylinder is connected with the upper end of bearing pin.When needs are installed on vehicle frame with supporting leg, at first with supporting leg axis hole and vehicle frame axis hole centering, the elongation of primer fluid cylinder pressure drives bearing pin near supporting leg axis hole and vehicle frame axis hole then, with bearing pin and supporting leg axis hole centering, hydraulic actuating cylinder continues elongation drive bearing pin and is plugged in supporting leg axis hole and the vehicle frame axis hole, promptly finishes the erection work of supporting leg; When needs with supporting leg when vehicle frame disassembles, only need a primer fluid cylinder pressure to shrink, drive bearing pin and from vehicle frame axis hole and supporting leg axis hole, withdraw, can finish dismantlement work.
Owing to adopt the mode of hydraulic cylinder-controlled cotter axle to realize the dismounting of the supporting leg of hoisting crane, only needing to drive hydraulic actuating cylinder drive bearing pin moves up and down, can finish the switching of latched position and unlocked position between the supporting leg of hoisting crane and the vehicle frame, and then realize the dismounting of the supporting leg of hoisting crane, more convenient to operate; And, bearing pin and hydraulic actuating cylinder are arranged on the supporting leg inside of hoisting crane, after the supporting leg dismounting of hoisting crane was finished, bearing pin still was connected on the supporting leg of hoisting crane, follows the supporting leg integral transportation of hoisting crane, can avoid bearing pin to lose.
In preferred embodiment, the supporting leg of the hoisting crane that the utility model provides, the length sum of the minimum length of hydraulic actuating cylinder and bearing pin arrives the distance on the plane, top of supporting leg axis hole greater than the upper end of hydraulic actuating cylinder, and is less than or equal to the distance of the upper end of hydraulic actuating cylinder to the baseplane of supporting leg axis hole.When hydraulic actuating cylinder was in the end position of withdrawal, the bottom surface of bearing pin was under the plane, top of supporting leg axis hole, on the baseplane, and perhaps the bottom surface of bearing pin overlaps with the baseplane of supporting leg axis hole.
Setting can guarantee that the supporting leg of hoisting crane and vehicle frame are under released state like this, be before the supporting leg of hoisting crane is not installed on the vehicle frame, bearing pin also is inserted in the supporting leg axis hole, in the time the supporting leg of hoisting crane need being installed on the vehicle frame, bearing pin and supporting leg axis hole do not need to carry out centering again, only need supporting leg axis hole and vehicle frame axis hole centering, drive hydraulic actuating cylinder then and take the bearing pin motion to, be the supporting leg and the bearing pin of lockable hoisting crane, simplified operating sequence.
Description of drawings
Fig. 1 is the structural representation that hoisting crane is installed the supporting leg state in the prior art;
Fig. 2 is in the structural representation of released state for hoisting crane supporting leg in the prior art and vehicle frame;
Fig. 3 is the supporting leg of hoisting crane in the prior art and the concrete connection structure scheme drawing of vehicle frame;
The supporting leg of the hoisting crane that Fig. 4 provides for the utility model and the local structure scheme drawing that vehicle frame is in the lock state;
The relative mounting positions index map of each parts of supporting leg of the hoisting crane that Fig. 5 provides for the utility model;
The first installation steps scheme drawing of the supporting leg of the hoisting crane that Fig. 6 provides for the utility model;
The second installation steps scheme drawing of the supporting leg of the hoisting crane that Fig. 7 provides for the utility model;
Fig. 8 is the partial enlarged drawing of hydraulic actuating cylinder upper end among Fig. 7;
The position view that is in released state of the supporting leg of the hoisting crane that Fig. 9 provides for the utility model;
The position view that is in the lock state of the supporting leg of the hoisting crane that Figure 10 provides for the utility model.
The specific embodiment
First core of the present utility model has been for providing a kind of supporting leg of hoisting crane, can make the dismounting of supporting leg of this hoisting crane convenient, and can avoid bearing pin to lose.Second core of the present utility model is for providing a kind of hoisting crane that comprises the supporting leg of above-mentioned hoisting crane.
In order to make those skilled in the art understand the technical solution of the utility model better, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 4, the supporting leg of the hoisting crane that Fig. 4 provides for the utility model and the local structure scheme drawing that vehicle frame is in the lock state.
In a kind of specific embodiment, the supporting leg of the hoisting crane that the utility model provides, be provided with supporting leg axis hole 1, and the bearing pin 2 that can match with the vehicle frame axis hole on the vehicle frame of this supporting leg axis hole 1 and hoisting crane, also comprise hydraulic actuating cylinder 3, the upper end of hydraulic actuating cylinder 3 is connected in the inboard with the roof 4 of supporting leg axis hole 1 supporting leg relative, hoisting crane, and the lower end of hydraulic actuating cylinder 3 is connected with the upper end of bearing pin 2.
In the top and bottom of described herein hydraulic actuating cylinder 3 " on " and D score, be for the relative position shown in the accompanying drawing, in being provided with of reality, hydraulic actuating cylinder 3 in the supporting leg of this hoisting crane, bearing pin 2, supporting leg axis hole 1, vehicle frame axis hole and roof 4 etc., can select the orientation that is provided with on the whole as required, but the relative position relation between above-described each parts remains unchanged.
The roof 4 and the supporting leg axis hole 1 of the supporting leg of hoisting crane are oppositely arranged, usually can with the axis normal of supporting leg axis hole 1 in or approximately perpendicular to this roof 4, certainly, guaranteeing that hydraulic actuating cylinder 3 and bearing pin 2 wait under the situation of each parts energy normal mounting, the axis of supporting leg axis hole 1 and this roof 4 also can be taked the set-up mode of other angles.
The upper end of hydraulic actuating cylinder 3 is connected in the inboard of roof 4, the inboard of this roof 4 refers to the side towards supporting leg axis hole 1, the concrete connection location of the upper end of hydraulic actuating cylinder 3 and roof 4, can be the axis in leg shaft hole 1 and the intersection point of this roof 4, or the zone of close this intersection point, in general, when needing to guarantee that hydraulic actuating cylinder 3 stretches out, can drive bearing pin 2 and be inserted in supporting leg axis hole 1 and the vehicle frame axis hole.
For hydraulic actuating cylinder 3, both can be with cylinder body one end of hydraulic actuating cylinder 3 as the upper end, with piston rod one end of hydraulic actuating cylinder 3 as the lower end; Also can be with piston rod one end of hydraulic actuating cylinder 3 as the upper end, with cylinder body one end of hydraulic actuating cylinder 3 as the lower end.
The connection mode of the upper end of hydraulic actuating cylinder 3 and roof 4 both can for affixed also can be for hinged.The connection mode of the lower end of hydraulic actuating cylinder 3 and bearing pin 2 both can for affixed also can be for hinged.Can select concrete connection mode as required.
Bearing pin 2 is used for matching with supporting leg axis hole 1 and vehicle frame axis hole, can on bearing pin 2 lubrication connection be set, to realize bearing pin 2 lubricating in supporting leg axis hole 1 and vehicle frame axis hole.Baffle plate 9 on the bottom surface that can be installed on bearing pin 2 can also be set, when the supporting leg of hoisting crane and vehicle frame are in the lock state, this baffle plate 9 is installed on the bottom surface of bearing pin 2, and so that bearing pin 2 is carried out axial limiting, this baffle plate 9 can be connected by the bottom surface of bolt with bearing pin 2.
Please further with reference to figure 5, Fig. 6, Fig. 7 and Fig. 8, the relative mounting positions index map of each parts of supporting leg of the hoisting crane that Fig. 5 provides for the utility model, the first installation steps scheme drawing of the supporting leg of the hoisting crane that Fig. 6 provides for the utility model, the second installation steps scheme drawing of the supporting leg of the hoisting crane that Fig. 7 provides for the utility model, Fig. 8 is the partial enlarged drawing of hydraulic actuating cylinder 3 upper ends among Fig. 7.
When the supporting leg of the hoisting crane that uses the utility model to provide first, can be earlier the lower end of hydraulic actuating cylinder 3 be connected with the upper end of bearing pin 2, hydraulic actuating cylinder 3 and bearing pin 2 are mounted for the assembly of one, and then with this assembly integral installation to supporting leg.Can be with this assembly by the supporting leg axis hole 1 on the supporting leg, the upper end of hydraulic actuating cylinder 3 is connected to relevant position on the roof 4.
The supporting leg of the hoisting crane that the utility model provides adopts hydraulic actuating cylinder 3 drive controlling bearing pins 2, and the upper end of hydraulic actuating cylinder 3 is connected in the inboard with the roof 4 of supporting leg axis hole 1 supporting leg relative, hoisting crane, and the lower end of hydraulic actuating cylinder 3 is connected with the upper end of bearing pin 2.When needs are installed on vehicle frame with supporting leg, at first with supporting leg axis hole 1 and vehicle frame axis hole centering, 3 elongations of primer fluid cylinder pressure drive bearing pin 2 near supporting leg axis hole 1 and vehicle frame axis hole then, with bearing pin 2 and supporting leg axis hole 1 centering, hydraulic actuating cylinder 3 continues elongation drive bearing pin 2 and is plugged in supporting leg axis hole 1 and the vehicle frame axis hole, promptly finishes the erection work of supporting leg; When needs with supporting leg when vehicle frame disassembles, only need a primer fluid cylinder pressure 3 to shrink, drive bearing pin 2 and from vehicle frame axis hole and supporting leg axis hole 1, withdraw, can finish dismantlement work.
Owing to adopt the mode of hydraulic actuating cylinder 3 control bearing pins 2 to realize the dismounting of the supporting leg of hoisting crane, only needing to drive hydraulic actuating cylinder 3 drive bearing pins 2 moves up and down, can finish the switching of latched position and unlocked position between the supporting leg of hoisting crane and the vehicle frame, and then the dismounting of the supporting leg of realization hoisting crane, more convenient to operate; And, bearing pin 2 and hydraulic actuating cylinder 3 are arranged on the supporting leg inside of hoisting crane, after the supporting leg dismounting of hoisting crane was finished, bearing pin 2 still was connected on the supporting leg 1 of hoisting crane, follows the supporting leg integral transportation of hoisting crane, can avoid bearing pin 2 to lose.
Please further with reference to figure 9 and Figure 10, the position view that is in the lock state of the supporting leg of the hoisting crane that the position view that is in released state of the supporting leg of the hoisting crane that Fig. 9 provides for the utility model, Figure 10 provide for the utility model.
In preferred embodiment, the length sum of the minimum length of hydraulic actuating cylinder 3 and bearing pin 2 can arrive the distance on the plane, top of supporting leg axis hole 1 greater than the upper end of hydraulic actuating cylinder 3, and is less than or equal to the distance of the upper end of hydraulic actuating cylinder 3 to the baseplane of supporting leg axis hole 1.
" minimum length " of hydraulic actuating cylinder 3 as herein described refers to, the length of the hydraulic actuating cylinder 3 when hydraulic actuating cylinder 3 is in the withdrawal end position; " extreme length " of hydraulic actuating cylinder 3 refers to, when hydraulic actuating cylinder 3 is in the length of the hydraulic actuating cylinder 3 when stretching out end position." upper end " of hydraulic actuating cylinder 3 refers to the termination on the top of hydraulic actuating cylinder 3.
With the minimum length of hydraulic actuating cylinder 3 and the length sum of bearing pin 2, be set to arrive the distance on the plane, top of supporting leg axis hole 1 greater than the upper end of hydraulic actuating cylinder 3, and be less than or equal to the distance of the upper end of hydraulic actuating cylinder 3 to the baseplane of supporting leg axis hole 1, when hydraulic actuating cylinder 3 is in the end position of withdrawal, the bottom surface of bearing pin 2 is under the plane, top of supporting leg axis hole 1, on the baseplane, and perhaps the bottom surface of bearing pin 2 overlaps with the baseplane of supporting leg axis hole 1.
Setting can guarantee that the supporting leg of hoisting crane and vehicle frame are under released state like this, be before the supporting leg of hoisting crane is not installed on the vehicle frame, bearing pin 2 also is inserted in the supporting leg axis hole 1, in the time the supporting leg of hoisting crane need being installed on the vehicle frame, bearing pin 2 does not need to carry out centering with supporting leg axis hole 1 again, only needs supporting leg axis hole 1 and vehicle frame axis hole centering, drives hydraulic actuating cylinder 3 then and takes bearing pin 2 motions to, be the supporting leg and the bearing pin 2 of lockable hoisting crane, simplified operating sequence.
Can be provided with supporting leg otic placode 5 and the orienting sleeve 6 that is positioned at supporting leg otic placode 5 end faces on the supporting leg of hoisting crane; On supporting leg otic placode 5 and the orienting sleeve 6, be respectively arranged with coaxial first through hole 11 and second through hole 12 with diameter, supporting leg axis hole 1 is specially this first through hole 11 and second through hole 12.
This setup, when hydraulic actuating cylinder 3 was in retracted position, the bottom surface of bearing pin 2 was lower than the end face of orienting sleeve 6 and is higher than the bottom surface of supporting leg otic placode 5, and perhaps the bottom surface of bearing pin 2 overlaps with the bottom surface of supporting leg otic placode 5.
In disassembly process; there is side travel 3 moments of dismounting hydraulic actuating cylinder; can cause damage to hydraulic actuating cylinder 3, orienting sleeve 6 is set, can play a very good protection hydraulic actuating cylinder 3; in addition; orienting sleeve 6 is set, has increased the axial length of supporting leg axis hole 1, thereby can increase the freedom of motion of bearing pin 2 in supporting leg axis hole 1; and then can reduce the performance accuracy requirement, make more convenient to operate.
The steadiness that connects to ground for the supporting leg that strengthens hoisting crane, can be at the connect to ground auxiliary otic placode 7 of vehicle frame arranged outside at place of supporting leg otic placode, auxiliary otic placode 7 is provided with and supporting leg axis hole 1 coaxial auxiliary axis hole with diameter, and bearing pin is plugged in supporting leg axis hole 1, vehicle frame axis hole and auxiliary axis hole successively.
The axis of hydraulic actuating cylinder 3 can with the dead in line of bearing pin 2.The dead in line of the axis of hydraulic actuating cylinder 3 and bearing pin 2 can make the stressed more even of bearing pin 2.
The lower end of bearing pin 2 can be along circumferentially being provided with chamfering 21.Can form chamfering 21 in the axial plane of bearing pin 2 and the intersection cutting of bottom surface, chamfering 21 is set help bearing pin 2 and supporting leg axis hole 1, the centering of bearing pin 2 and vehicle frame axis hole.
The lower end of hydraulic actuating cylinder 3 can be provided with globoid 31, and the upper end of bearing pin 2 can be correspondingly provided with the spherical groove 22 that opening makes progress, and this globoid 31 is articulated in this spherical groove 22.Undertaken hinged by globoid 31 is set, hydraulic actuating cylinder 3 can be that the axial line of center around the hinge-point place rotates a circle with the hinge-point, and the little angle end of swing that can finish radially is moving, this universal hinging mode, in fitting process, automatic centering can be realized, and the stressing conditions of whole connecting device can be improved.
Under the situation of hydraulic actuating cylinder 3 and bearing pin 2 coaxial settings,, can not guarantee coaxial fully owing to can have the production error in the actual production, adopt this universal hinging mode, in fitting process, can realize automatic centering, avoid that artificial centering produces than mistake, and then can improve assembly precision.
Further, can be provided with first cover plate 23 and second cover plate 24 that match on the bearing pin 2, this first cover plate 23 and this second cover plate 24 can be respectively arranged with semi-round first groove and second groove, first groove is relative with second slot opening, form a manhole, the diameter of this manhole is less than the diameter of this globoid 31, and this manhole is set in the connecting portion of this globoid 31 and hydraulic actuating cylinder 3.
First cover plate 23 and second cover plate 24 can be by the end face of bolted connection in bearing pin 2, and it is affixed also can to pass through other modes.Adopt cover plate to limit the ball-shaped position, simple in structure, easy for installation.
About being connected of roof 4 on the supporting leg of hydraulic actuating cylinder 3 upper ends and hoisting crane, can roof 4 be provided with the mounting groove 41 of the upper end of plug-in mounting hydraulic actuating cylinder 3, the upper end edge of hydraulic actuating cylinder 3 circumferentially is provided with guiding groove 31.
For ease of being provided with, can process ring bodies parts separately with through hole, these ring bodies parts are bolted to connection on the roof 4, the through hole on these ring bodies parts can form the mounting groove 41 of the upper end of plug-in mounting hydraulic actuating cylinder 3.Certainly this mounting groove 41 also can be the groove that directly is opened on the supporting leg.
The upper end of hydraulic actuating cylinder 3 can be provided with guiding groove 31, hydraulic actuating cylinder 3 upper end edges circumferentially can be cut to form guiding groove 31, guiding groove 31 is set is convenient to the upper end of hydraulic actuating cylinder 3 and the centering of mounting groove 41, makes fitting operation more smooth.The utility model also provides a kind of hoisting crane, comprise vehicle frame and with the supporting leg of this vehicle frame bonded assembly hoisting crane, the supporting leg of this hoisting crane is the supporting leg of above-described hoisting crane.
Because this hoisting crane comprises the supporting leg of above-described hoisting crane, its also corresponding technique effect with supporting leg of this hoisting crane need to prove that the structure of these other parts of hoisting crane can not repeat them here referring to prior art.
Used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (9)
1. the supporting leg of a hoisting crane, be provided with supporting leg axis hole (1), and the bearing pin (2) that can match with the vehicle frame axis hole on the vehicle frame of described supporting leg axis hole (1) and hoisting crane, it is characterized in that, also comprise hydraulic actuating cylinder (3), the upper end of described hydraulic actuating cylinder (3) is connected in the inboard with the roof (4) of described supporting leg axis hole (1) supporting leg relative, described hoisting crane, and the lower end of described hydraulic actuating cylinder (3) is connected with the upper end of described bearing pin (2).
2. the supporting leg of hoisting crane according to claim 1, it is characterized in that, the length sum of the minimum length of described hydraulic actuating cylinder (3) and described bearing pin (2), arrive the distance on the plane, top of described supporting leg axis hole (1) greater than the upper end of described hydraulic actuating cylinder (3), and be less than or equal to the distance of the upper end of described hydraulic actuating cylinder (3) to the baseplane of described supporting leg axis hole (1).
3. the supporting leg of hoisting crane according to claim 2 is characterized in that, the supporting leg of described hoisting crane is provided with supporting leg otic placode (5) and is positioned at the orienting sleeve (6) of described supporting leg otic placode (5) end face; On described supporting leg otic placode (5) and the described orienting sleeve (6), be respectively arranged with coaxial first through hole (11) and second through hole (12) with diameter, described supporting leg axis hole (1) is specially described first through hole (11) and described second through hole (12).
4. according to the supporting leg of each described hoisting crane of claim 1 to 3, it is characterized in that the dead in line of the axis of described hydraulic actuating cylinder (3) and described bearing pin (2).
5. according to the supporting leg of each described hoisting crane of claim 1 to 3, it is characterized in that the lower end edge of described bearing pin (2) circumferentially is provided with chamfering (21).
6. according to the supporting leg of each described hoisting crane of claim 1 to 3, it is characterized in that, the lower end of described hydraulic actuating cylinder (3) is provided with globoid (31), the upper end of described bearing pin (2) is correspondingly provided with the spherical groove (22) that opening makes progress, and described globoid (31) is articulated in described spherical groove (22).
7. the supporting leg of hoisting crane according to claim 6, it is characterized in that, described bearing pin (2) is provided with first cover plate (23) and second cover plate (24) that matches, described first cover plate (23) and described second cover plate (24) are respectively arranged with semi-round first groove and second groove, described first groove is relative with described second slot opening, form a manhole, the diameter of described manhole is less than the diameter of described globoid (31), and described manhole is set in the connecting portion of described globoid (31) and described hydraulic actuating cylinder (3).
8. according to the supporting leg of each described hoisting crane of claim 1 to 3, it is characterized in that described roof (4) is provided with the mounting groove (41) of the upper end of the described hydraulic actuating cylinder of plug-in mounting (3), the upper end edge of described hydraulic actuating cylinder (3) circumferentially is provided with guiding groove (31).
9. hoisting crane, comprise vehicle frame and with the supporting leg of described vehicle frame bonded assembly hoisting crane, it is characterized in that the supporting leg of described hoisting crane is the supporting leg of each described hoisting crane of claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206716135U CN201980905U (en) | 2010-12-21 | 2010-12-21 | Ground jack of crane and crane with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206716135U CN201980905U (en) | 2010-12-21 | 2010-12-21 | Ground jack of crane and crane with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201980905U true CN201980905U (en) | 2011-09-21 |
Family
ID=44608369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206716135U Expired - Lifetime CN201980905U (en) | 2010-12-21 | 2010-12-21 | Ground jack of crane and crane with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201980905U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102001594A (en) * | 2010-12-21 | 2011-04-06 | 徐州重型机械有限公司 | Crane and supporting leg thereof |
| CN102381626A (en) * | 2011-11-04 | 2012-03-21 | 徐工集团工程机械股份有限公司 | Pin moving device, movable connecting structure and suspension hook structure |
| CN102591371A (en) * | 2012-03-07 | 2012-07-18 | 三一电气有限责任公司 | Synchronous control method and device of four-leg oil cylinder |
| CN109502491A (en) * | 2018-12-30 | 2019-03-22 | 浙江三装备有限公司 | Just cocked support leg mechanism and crawler crane |
-
2010
- 2010-12-21 CN CN2010206716135U patent/CN201980905U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102001594A (en) * | 2010-12-21 | 2011-04-06 | 徐州重型机械有限公司 | Crane and supporting leg thereof |
| CN102001594B (en) * | 2010-12-21 | 2012-09-19 | 徐州重型机械有限公司 | Crane and supporting leg thereof |
| CN102381626A (en) * | 2011-11-04 | 2012-03-21 | 徐工集团工程机械股份有限公司 | Pin moving device, movable connecting structure and suspension hook structure |
| CN102591371A (en) * | 2012-03-07 | 2012-07-18 | 三一电气有限责任公司 | Synchronous control method and device of four-leg oil cylinder |
| CN109502491A (en) * | 2018-12-30 | 2019-03-22 | 浙江三装备有限公司 | Just cocked support leg mechanism and crawler crane |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101720390A (en) | Wind-driven generator and construction method thereof | |
| CN201980905U (en) | Ground jack of crane and crane with same | |
| CN104066672A (en) | Method and device for mounting a rotor hub on a wind turbine | |
| CN102659015A (en) | Lifting machine tool for impellers of offshore wind turbines | |
| CN113511588B (en) | Overturn traveling device and method for hoist cylinder | |
| CN202415019U (en) | Rapidly erected tire type crane | |
| CN102001594B (en) | Crane and supporting leg thereof | |
| CN202726418U (en) | Pin inserting and pulling device and engineering machine | |
| WO2023221302A1 (en) | Boom system for independently mounting wind turbine and large-scale construction apparatus | |
| CN205222520U (en) | Scalable with rotatory cantilever crane of crossbeam | |
| CN114776529A (en) | Assembled wind power tower drum and assembling method thereof | |
| CN113348289A (en) | Multi-column wind turbine tower and erection method | |
| CN208632969U (en) | High speed railway box girder is unpowered to change the outfit frame | |
| CN102061818B (en) | Installation vehicle of electric pole | |
| CN107264377A (en) | A kind of crane arm often tears arm joint attaching/detaching apparatus and assembly and disassembly methods open | |
| CN102311049A (en) | Port hoisting machinery and anchoring wind-preventing mechanism thereof | |
| CN202245815U (en) | Self-elevating crane arranged on top of flare tower and used for disassembling and assembling flare head | |
| CN205296142U (en) | Heavy -calibre wet thoughtlessly spouting futilely spouts stirring stake machine of using simultaneously with height | |
| CN116239016B (en) | Heavy oil cylinder hoisting and overturning tool and method | |
| CN208604586U (en) | Large-scale headstock gear sunpender pitman shaft, which is worn, moves back shaft device | |
| CN203568724U (en) | Mast and engineering machine vehicle configured with same | |
| CN205835237U (en) | Main steam isolation valve hydraulic cylinder turning device | |
| CN210710455U (en) | Lifting maintenance device and wind driven generator | |
| CN203403717U (en) | Tower body erecting and descending mechanism of tower crane | |
| CN102926772A (en) | Manual grasping device for large-diameter tunnel segments |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110921 Effective date of abandoning: 20120919 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20110921 Effective date of abandoning: 20120919 |