CN207645669U - Crane - Google Patents
Crane Download PDFInfo
- Publication number
- CN207645669U CN207645669U CN201721767257.5U CN201721767257U CN207645669U CN 207645669 U CN207645669 U CN 207645669U CN 201721767257 U CN201721767257 U CN 201721767257U CN 207645669 U CN207645669 U CN 207645669U
- Authority
- CN
- China
- Prior art keywords
- crane
- vehicle frame
- scissor
- supporting leg
- scissor arms
- 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.)
- Active
Links
Landscapes
- Jib Cranes (AREA)
Abstract
This disclosure relates to a kind of crane, including vehicle frame (1), turntable (2), fixed weight (3) and moving counterweight (4), the fixed weight (3) is mounted on the turntable (2), it is characterized in that, the crane further includes the scissor lift platform (5) for placing and lifting the moving counterweight (4), and the scissor lift platform (5) is arranged on the vehicle frame (1).In the crane of the disclosure, moving counterweight is driven by using scissor lift platform, the robust motion of moving counterweight can be improved, improves complete machine security performance.
Description
Technical field
This disclosure relates to a kind of crane.
Background technology
Counterweight is the main components of crane, and counterweight is affected for the stability and lifting performance of crane.With
The development of technology, counterweight can be increased and then carried by the crane of especially medium and small tonnage after crane light-weight design
Lifting performance is risen, but is limited by the dead weight of vehicle transport condition and axle load, it is difficult to fixed weight is made very big, therefore, in
Small tonnage crane tends to the Combination Design that fixed weight adds moving counterweight.
In the prior art, it when needing to be installed to moving counterweight in fixed weight, is typically carried by what is be arranged on turntable
Oil-lifting jar promotes moving counterweight directly up, or the elevating ram by being arranged on vehicle frame lifts moving counterweight directly up.
No matter which kind of mode, since oil cylinder directly acts on moving counterweight so that the robust motion of moving counterweight is poor, safety compared with
It is low.
Utility model content
Purpose of this disclosure is to provide a kind of crane, the robust motion of the moving counterweight in the crane is higher.
To achieve the goals above, the disclosure provides a kind of crane, including vehicle frame, turntable, fixed weight and activity are matched
Weight, the fixed weight installation is on the turntable, which is characterized in that the crane further includes described for placing and lifting
The scissor lift platform of moving counterweight, the scissor lift platform are arranged on the vehicle frame.
Optionally, the scissor lift platform includes lifting bracket, the first scissor arms and the second scissor arms, first scissor
The middle part of arm and the middle part of second scissor arms are hinged, and the upper end of first scissor arms is articulated with the lifting bracket, under
End is slidably connected to the vehicle frame；The upper end of second scissor arms is slidably connected to the lifting bracket, and lower end is articulated with institute
State vehicle frame.
Optionally, it is provided with upper rail on the lifting bracket, lower guideway, first scissor are provided on the vehicle frame
The lower end of arm is provided with lower slider, and the lower slider is snug fit at the lower guideway, the upper end of second scissor arms
It is provided with sliding part, the upper sliding part is snug fit at the upper rail.
Optionally, the upper sliding part and lower slider are pulley.
Optionally, it is provided with upper bracket on the lifting bracket, undersetting, first scissor are provided on the vehicle frame
The upper end of arm is articulated with the upper bracket, and the lower end of second scissor arms is articulated with the undersetting.
Optionally, the positioning protrusion for positioning the moving counterweight is provided on the lifting bracket.
Optionally, the drive cylinder of the scissor lift platform is arranged vertically, and the upper end of the drive cylinder is connected to described
Lifting bracket, lower end are connected to the vehicle frame.
Optionally, the crane includes support leg hydraulic system, and the drive cylinder of the scissor lift platform passes through hydraulic tube
Road is connected to the 5th supporting leg control valve in the support leg hydraulic system.
Optionally, the 5th supporting leg control valve be three position four-way directional control valve, the three position four-way directional control valve include oil inlet,
Oil return opening, the first actuator port and the second actuator port, the 5th vertical oil cylinder of supporting leg are connected to described first by fluid pressure line
Actuator port, the drive cylinder are connected to second actuator port by fluid pressure line.
Optionally, it is provided with balanced valve on the in-line and oil return line of the drive cylinder.
In the crane of the disclosure, moving counterweight is driven by using scissor lift platform, moving counterweight can be improved
Robust motion, improve complete machine security performance.
Other feature and advantage of the disclosure will be described in detail in subsequent specific embodiment part.
Description of the drawings
Attached drawing is for providing further understanding of the disclosure, and a part for constitution instruction, with following tool
Body embodiment is used to explain the disclosure together, but does not constitute the limitation to the disclosure.In the accompanying drawings：
Fig. 1 is the partial side view according to the crane of an embodiment of the present disclosure, wherein moving counterweight is in and tears open
Unload state；
Fig. 2 is the partial side view according to the crane of an embodiment of the present disclosure, wherein moving counterweight is in group
Dress state；
Fig. 3 is the schematic side view of scissor lift platform in the crane according to an embodiment of the present disclosure；
Fig. 4 is the schematic diagram of support leg hydraulic system in the crane according to an embodiment of the present disclosure；
Fig. 5 is the schematic diagram of the 5th supporting leg control valve in the crane according to an embodiment of the present disclosure.
Reference sign
1 vehicle frame, 2 turntable
3 fixed weight, 4 moving counterweight
5 scissor lift platform, 501 lifting bracket
5011 positioning convex platform, 502 first scissor arms
503 second scissor arms, 504 drive cylinder
505 upper rail, 506 lower guideway
507 upper bracket, 508 lower bracket
510 lower slider of sliding part on 509
6 hydraulic pump, 7 operation control valve
8 left front supporting leg control valve, 9 right anterior branch leg control valve
10 left back supporting leg control valve, 11 right rear support leg control valve
12 the 5th supporting leg control valve, 121 oil inlet
122 oil return opening, 123 first actuator port
124 second actuator port, 13 left front supporting leg cross cylinder
The 14 left front vertical 15 right anterior branch leg cross cylinders of oil cylinder of supporting leg
The vertical 17 left back supporting leg cross cylinder of oil cylinder of 16 right anterior branch legs
The 18 left back vertical 19 right rear support leg cross cylinders of oil cylinder of supporting leg
20 right vertical the 5th vertical oil cylinders of supporting leg of oil cylinder 21 of rear support leg
22 balanced valves
Specific implementation mode
The specific implementation mode of the disclosure is described in detail below in conjunction with attached drawing.It should be understood that this place is retouched
The specific implementation mode stated is only used for describing and explaining the disclosure, is not limited to the disclosure.
The disclosure provides a kind of crane, including vehicle frame 1, turntable 2 and counterweight, turntable 2 are rotatably arranged in vehicle frame 1
On, scissor lift platform 5 is provided on vehicle frame 1, counterweight includes fixed weight 3 and moving counterweight 4, and fixed weight 3 is fixed on turntable 2
On.In crane running, as shown in Figure 1, moving counterweight 4 is in disassembly status, moving counterweight 4 is placed on scissor lift platform 5
On, to make the Forward of counterweight center of gravity to change the stress of crane chassis rear axle, improve crane running performance.Work as lifting
After machine is moved to desired position and accomplishes fluently supporting leg, as shown in Fig. 2, the control rotation of turntable 2 makes fixed weight 3 be located at moving counterweight
4 surface, then, control scissor lift platform 5 rise, until moving counterweight 4 is connected to the bottom of fixed weight 3, then again
Moving counterweight 4 and fixed weight 3 are fitted together by locking structure.
In the crane of the disclosure, moving counterweight 4 is driven by using scissor lift platform 5, can the activity of improving match
4 robust motion is weighed, complete machine security performance is improved.
Scissor lift platform 5 can have any suitable structure.In one embodiment, as shown in figure 3, scissor lift
Platform 5 may include lifting bracket 501, drive cylinder 504 and two groups of scissors mechanisms positioned opposite.Every group of scissors mechanism packet
The first scissor arms 502 and the second scissor arms 503 are included, moving counterweight 4 is placed on lifting bracket 501, in the first scissor arms 502
Portion and the middle part of the second scissor arms 503 are hinged, and the upper end of the first scissor arms 502 is articulated with lifting bracket 501, and lower end is slidably connected
In vehicle frame 1；The upper end of second scissor arms 503 is slidably connected to lifting bracket 501, and lower end is articulated with vehicle frame 1.Drive cylinder 504
Vertical arrangement, the upper end of drive cylinder 504 are connected to lifting bracket 501, and lower end is connected to vehicle frame 1.
Further, it is provided with upper bracket 507 and upper rail 505 on lifting bracket 501, undersetting is provided on vehicle frame 1
508 and lower guideway 506, the upper end of the first scissor arms 502 be articulated with upper bracket 507, the lower end of the first scissor arms 502 is provided with down
Sliding part 510, lower slider 510 are snug fit at lower guideway 506；The lower end of second scissor arms 503 is articulated with undersetting 508,
The upper end of second scissor arms 503 is provided with sliding part 509, and upper sliding part 509 is snug fit at upper rail 505.In scissors liter
It drops in 5 uphill process of platform, the position of undersetting 508 is motionless, and upper bracket 507 moves up, but relative to the left and right of undersetting 508
Position does not change；Lower slider 510 in lower guideway 506 moves right, the upper sliding part 509 in upper rail 505 to
It is moved up while moving right；The hinge joint of first scissor arms 502 and the second scissor arms 503 is upward while moving right
It is mobile.Drive cylinder 504, the first scissor arms 502, the second scissor arms 503, upper bracket 507, undersetting 508,505 and of upper rail
The common guarantees such as lower guideway 506 lifting bracket 501 does upper and lower translation movement, and then ensures that the stable movement of moving counterweight 4 can
It leans on.
Here, upper sliding part 509 and lower slider 510 can be pulley, or sliding block.Sliding part is in guide rail
Movement can be to roll, or sliding.
In order to enable moving counterweight 4 to be more stably placed on lifting bracket 501, while ensureing the position of moving counterweight 4
Consistency is set, in one embodiment, as shown in figure 3, positioning protrusion 5011 can be provided on lifting bracket 501, activity
The bottom surface of counterweight 4 can be provided with positioning groove, and when moving counterweight 4 is placed on lifting bracket 501, positioning protrusion 5011 is inserted
Enter to be cooperated in positioning groove, to which moving counterweight 4 to be located on lifting bracket 501.
In the disclosure, as shown in figure 4, crane includes support leg hydraulic system, which includes hydraulic pump
6, operation control valve 7, left front supporting leg control valve 8, right anterior branch leg control valve 9, left back supporting leg control valve 10, right rear support leg control valve
11, the 5th supporting leg control valve 12, left front supporting leg cross cylinder 13, the vertical oil cylinder 14 of left front supporting leg, right anterior branch leg cross cylinder 15,
The vertical oil cylinder 16 of right anterior branch leg, left back supporting leg cross cylinder 17, the vertical oil cylinder 18 of left back supporting leg, right rear support leg cross cylinder 19,
The vertical oil cylinder of the vertical oil cylinder 20 of right rear support leg, the 5th supporting leg 21.
Left front supporting leg control valve 8 and left front supporting leg cross cylinder 13 and the vertical oil cylinder of left front supporting leg 14 are connect, its first
Left front supporting leg cross cylinder 13 is accessed main hydraulic circuit by operating position, left front supporting leg control valve 8, in its second operating position,
The vertical oil cylinder of left front supporting leg 14 is accessed main hydraulic circuit by left front supporting leg control valve 8.
Right anterior branch leg control valve 9 and right anterior branch leg cross cylinder 15 and the vertical oil cylinder of right anterior branch leg 16 are connect, its first
Right anterior branch leg cross cylinder 15 is accessed main hydraulic circuit by operating position, right anterior branch leg control valve 9, in its second operating position,
The vertical oil cylinder of right anterior branch leg 16 is accessed main hydraulic circuit by right anterior branch leg control valve 9.
Left back supporting leg control valve 10 and left back supporting leg cross cylinder 17 and the vertical oil cylinder of left back supporting leg 18 are connect, its first
Left back supporting leg cross cylinder 17 is accessed main hydraulic circuit by operating position, left back supporting leg control valve 10, in its second operating position,
The vertical oil cylinder of left back supporting leg 18 is accessed main hydraulic circuit by left back supporting leg control valve 10.
Right rear support leg control valve 11 and right rear support leg cross cylinder 19 and the vertical oil cylinder of right rear support leg 20 are connect, its first
Right rear support leg cross cylinder 19 is accessed main hydraulic circuit by operating position, right rear support leg control valve 11, in its second operating position,
The vertical oil cylinder of right rear support leg 20 is accessed main hydraulic circuit by right rear support leg control valve 11.
5th supporting leg control valve 12 is connect with the drive cylinder 504 of the vertical oil cylinder 21 of the 5th supporting leg and scissor lift platform 5,
Its first operating position, the vertical oil cylinder of the 5th supporting leg 21 is accessed main hydraulic circuit by the 5th supporting leg control valve 12, in its second work
Make position, drive cylinder 504 is accessed main hydraulic circuit by the 5th supporting leg control valve 12.
In the disclosure, the drive of scissor lift platform 5 is controlled by using the original 5th supporting leg control valve 12 of crane
Dynamic oil cylinder 504, enabling reduce the quantity of Hydraulic Elements, realize that one is mostly used, and so as to simplify structure, reduces cost.
Operation control valve 7 is three six-way transfer valves, in its first operating position so that support oil cylinder is in stretching, extension
Operating mode；In its second operating position, the flow direction of main hydraulic circuit is adjusted so that support oil cylinder, which is in, shrinks Working mould
Formula；In its third operating position so that support leg hydraulic system does not access total hydraulic main circuit of crane.
In the disclosure, the 5th supporting leg control valve 12 can be any form of valve.In one embodiment, such as Fig. 5
Shown, the 5th supporting leg control valve 12 is a three position four-way directional control valve, which includes oil inlet 121, oil return
The 122, first actuator port 123 of mouth and the second actuator port 124, the 5th support oil cylinder are connected to the first work by fluid pressure line
Hydraulic fluid port 123, drive cylinder 504 are connected to the second actuator port 124 by fluid pressure line.In its first operating position, the 5th
The vertical oil cylinder of leg 21 accesses main hydraulic circuit；In its second operating position, the drive cylinder 504 of scissor lift platform 5 accesses main liquid
Push back road；In its third operating position, the drive cylinder 504 of the vertical oil cylinder 21 of the 5th supporting leg and scissor lift platform 5 does not access
Main hydraulic circuit.
Further, in order to ensure the robust motion of scissor lift platform 5, the in-line and oil return line of drive cylinder 504
On be provided with balanced valve 22.
The preferred embodiment of the disclosure is described in detail above in association with attached drawing, still, the disclosure is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical solution of the disclosure
Monotropic type, these simple variants belong to the protection domain of the disclosure.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the disclosure to it is various can
The combination of energy no longer separately illustrates.
In addition, arbitrary combination can also be carried out between a variety of different embodiments of the disclosure, as long as it is without prejudice to originally
Disclosed thought equally should be considered as disclosure disclosure of that.
Claims (10)
1. a kind of crane, including vehicle frame (1), turntable (2), fixed weight (3) and moving counterweight (4), the fixed weight (3)
On the turntable (2), which is characterized in that the crane further includes for placing and lifting the moving counterweight (4)
Scissor lift platform (5), the scissor lift platform (5) is arranged on the vehicle frame (1).
2. crane according to claim 1, which is characterized in that the scissor lift platform (5) includes lifting bracket
(501), the first scissor arms (502) and the second scissor arms (503), the middle part of first scissor arms (502) are cut with described second
The middle part of yoke (503) is hinged, and the upper end of first scissor arms (502) is articulated with the lifting bracket (501), lower end sliding
It is connected to the vehicle frame (1)；The upper end of second scissor arms (503) is slidably connected to the lifting bracket (501), lower end hinge
It is connected to the vehicle frame (1).
3. crane according to claim 2, which is characterized in that be provided with upper rail on the lifting bracket (501)
(505), lower guideway (506) is provided on the vehicle frame (1), the lower end of first scissor arms (502) is provided with lower slider
(510), the lower slider (510) is snug fit at the lower guideway (506), and the upper end of second scissor arms (503) is set
It is equipped with sliding part (509), the upper sliding part (509) is snug fit at the upper rail (505).
4. crane according to claim 3, which is characterized in that the upper sliding part (509) and lower slider (510) are equal
For pulley.
5. crane according to claim 2, which is characterized in that be provided with upper bracket on the lifting bracket (501)
(507), undersetting (508) is provided on the vehicle frame (1), the upper end of first scissor arms (502) is articulated with the upper branch
Seat (507), the lower end of second scissor arms (503) is articulated with the undersetting (508).
6. crane according to claim 2, which is characterized in that be provided on the lifting bracket (501) for positioning
The positioning protrusion (5011) of the moving counterweight (4).
7. crane according to claim 2, which is characterized in that the drive cylinder (504) of the scissor lift platform (5) is perpendicular
Straight arrangement, the upper end of the drive cylinder (504) are connected to the lifting bracket (501), and lower end is connected to the vehicle frame (1).
8. according to the crane described in any one of claim 1-7, which is characterized in that the crane includes supporting leg hydraulic pressure system
System, the drive cylinder (504) of the scissor lift platform (5) are connected to the in the support leg hydraulic system the 5th by fluid pressure line
Supporting leg control valve (12).
9. crane according to claim 8, which is characterized in that the 5th supporting leg control valve (12) is changed for 3-position 4-way
To valve, which includes oil inlet (121), oil return opening (122), the first actuator port (123) and the second work
Hydraulic fluid port (124), the 5th vertical oil cylinder of supporting leg (21) are connected to first actuator port (123), the drive by fluid pressure line
Dynamic oil cylinder (504) is connected to second actuator port (124) by fluid pressure line.
10. crane according to claim 8, which is characterized in that the in-line and oil return line of the drive cylinder (504)
On be provided with balanced valve (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721767257.5U CN207645669U (en) | 2017-12-15 | 2017-12-15 | Crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721767257.5U CN207645669U (en) | 2017-12-15 | 2017-12-15 | Crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207645669U true CN207645669U (en) | 2018-07-24 |
Family
ID=62877067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721767257.5U Active CN207645669U (en) | 2017-12-15 | 2017-12-15 | Crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207645669U (en) |
-
2017
- 2017-12-15 CN CN201721767257.5U patent/CN207645669U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2116442A1 (en) | Fork assembly lift mechanism | |
| CN201218243Y (en) | Working bucket leveling hydraulic system of high-altitude operation car | |
| CN207645669U (en) | Crane | |
| CN211366884U (en) | Cantilever crane type aerial work platform and cantilever crane telescopic hydraulic system thereof | |
| CN202099024U (en) | Scissor-typed hydraulic lifter with high work efficiency and low energy consumption | |
| CN109264590A (en) | A kind of folding type hydraulic loop wheel machine with brake function | |
| CN212536286U (en) | Three-point suspension traction control energy-saving system | |
| CN206107367U (en) | Automobile tailboard | |
| CN205906997U (en) | Wide visual field transposition apart from fork that inclines | |
| CN204978910U (en) | Driver cab lifting device | |
| CN111795036A (en) | Be applied to slope hydro-cylinder pressure testing device on fork truck | |
| GB658579A (en) | Improvements relating to hydraulic hoists | |
| CN206437841U (en) | A kind of abandoned car, which is disassembled, uses Hoisting ＆ turning device | |
| CN205968169U (en) | Flexible workstation of arm assembled intelligence | |
| CN2820534Y (en) | Double cylinder pneumatic flat press gilding press | |
| CN204162357U (en) | A kind of lifting device | |
| CN207565015U (en) | A kind of horizontal oil cylinder hydraulic machine | |
| CN207659021U (en) | A kind of bidirectional modulation pallet fork | |
| CN208558312U (en) | The big stroke lifting door of 3D printing equipment | |
| CN206983787U (en) | A kind of vehicle seat lifting mechanism | |
| CN111795035A (en) | Oil cylinder simulation detection device and method applied to forklift | |
| CN216807968U (en) | Mechanical elevator | |
| CN104444928A (en) | Composite lifting device | |
| CN2120796U (en) | Hand hydraulic hoist | |
| CN204569301U (en) | A kind of balance lifting system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 102206 Beijing Changping District Shahe town Shayang Road, Niu Niu Wan Village North Patentee after: Beiqi Futian Automobile Co., Ltd. Address before: 102206, Beijing, Shahe Town, Changping District Road, sand Yang Patentee before: Beiqi Futian Automobile Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200929 Address after: No.202 Xuanfu street, Xuanhua District, Zhangjiakou, Hebei Province Patentee after: Hebei Leisa Heavy Construction Machinery Co., Ltd Address before: 102206, Beijing, Shahe, Changping District Town, Sha Yang Road, Lao Wan Village North Patentee before: BEIQI FOTON MOTOR Co.,Ltd. |