CN207209828U - A kind of suspender and hanging device - Google Patents
A kind of suspender and hanging device Download PDFInfo
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- CN207209828U CN207209828U CN201721254530.4U CN201721254530U CN207209828U CN 207209828 U CN207209828 U CN 207209828U CN 201721254530 U CN201721254530 U CN 201721254530U CN 207209828 U CN207209828 U CN 207209828U
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- elastic component
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- mounting platform
- opening
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Abstract
Crane gear field is the utility model is related to, in particular to a kind of suspender and hanging device.The utility model discloses a kind of suspender, and it includes mounting platform, arm and relative to symmetrically arranged two buffer units of arm.Arm is hinged with mounting platform.One end of buffer unit is hinged with the one end of arm away from mounting platform, and the other end and the mounting platform of buffer unit are hinged.Buffer unit is used to apply damping relative to the rotation of mounting platform to arm.The apparatus structure is simple, and working service is convenient, cargo handling phenomenon can be vibrated and be not easy to caused by the dissymmetry of quality preferably to solve suspender both sides.
Description
Technical field
Crane gear field is the utility model is related to, in particular to a kind of suspender and hanging device.
Background technology
Front swing-machine class mobile type hoisting equipment is similar at present, at work to prevent or reduce suspender because of institute's hanging object
The dissymmetry of product center of gravity, when arm changes in amplitude under suspender Gravitative Loads, equilbrium position can be automatically adjusted to, its speed compared with
It hurry up, inertia is larger, is easily caused complete machine and produces vibration, Article handling is difficult.
Solves this phenomenon mode at present mostly using two oil cylinders of increase between suspender and arm and a series of liquid
Component is pressed, its principal character is by oil pump feed to oil cylinder, is separately provided damping valve group and regulation valve member.
Adopt in manner just described so that crane gear it is complicated, the hydraulic component being related to is more, while needs to adjust
The link of section is also more, and regulation is safeguarded inconvenient.
Utility model content
The purpose of this utility model is to provide a kind of suspender, and the suspender can avoid the rotation amplitude of arm due to lifting
Weight influence and change too fast so that arm runs more steady during lifting.At the same time, can ensure to hang
The arm stability that it runs during work, avoid producing vibration.In addition, improving the stability of arm operation and reduction
On the premise of vibration, the structure of suspender can be simplified, and reduce its cost for using and safeguarding.
What embodiment of the present utility model was realized in：
A kind of suspender, it includes mounting platform, arm and relative to symmetrically arranged two buffer unit of arm；
Arm is hinged with mounting platform；
One end of buffer unit is hinged with the one end of arm away from mounting platform, the other end and mounting platform of buffer unit
It is be hinged；
Buffer unit is used to apply damping relative to the rotation of mounting platform to arm.
Front swing-machine class mobile type hoisting equipment is similar at present, at work to prevent or reduce suspender because of institute's hanging object
The dissymmetry of product center of gravity, when arm changes in amplitude under suspender Gravitative Loads, equilbrium position can be automatically adjusted to, its speed compared with
It hurry up, inertia is larger, is easily caused complete machine and produces vibration, Article handling is difficult.Solve at present this phenomenon mode mostly using
Increase by two oil cylinders and a series of hydraulic components between suspender and arm, its principal character is by oil pump feed to oil cylinder, list
Damping valve group and regulation valve member are solely set.Adopt in manner just described so that complicated, the hydraulic pressure member device being related to of crane gear
Part is more, while needs the link that adjusts also more, and regulation is safeguarded inconvenient.
Based on above mentioned problem, the utility model discloses a kind of suspender, the suspender includes mounting platform and is arranged on peace
It is used for the arm lifted on assembling platform, and while arm and mounting platform are be hinged, is provided with the both sides of arm relative to hanging
The symmetrical buffer unit of arm.By the way that one end of buffer unit and the one end of arm away from mounting platform are hinged, buffer unit
The other end is hinged with mounting platform, just can be when arm is relative to the rotation of the hinged place of mounting platform, the rotation to arm
Certain damping is provided, avoid arm rotation amplitude change due to the influence of the weight of lifting it is too fast so that arm is being hung
Run during dress more steady.At the same time, by being provided with the both sides of arm relative to the symmetrical buffer unit of arm,
Symmetrical power can be applied to arm during lifting, ensure the arm stability that it runs during work,
Avoid producing vibration.Secondly, such set-up mode, the stability of arm operation can improved and reducing the premise of vibration
Under, simplify the structure of suspender, and reduce its cost for using and safeguarding.
In a kind of embodiment of the present utility model：
Buffer unit includes cylinder, piston rod, piston, the first elastic component and the second elastic component；
Inner chamber is provided with cylinder, and the opening for being turned on inner chamber and supplying piston rod to pass through, piston are arranged on interior intracavitary simultaneously
It can move in the lumen；
One end of piston rod is stretched into inner chamber by opening and is connected with piston；
First elastic component is arranged on interior intracavitary, and one end of the first elastic component and opening are against the another of, the first elastic component
One end and piston against；
Second elastic component is arranged on outside cylinder, and one end of the second elastic component and opening are against the another of, the second elastic component
One end and the one end of piston rod away from piston against.
In a kind of embodiment of the present utility model：
Buffer unit includes being arranged on the first adjusting sleeve of opening, and the first adjusting sleeve includes leading to for what piston rod passed through
Hole；
First elastic component and the second elastic component close to one end of opening with the first adjusting sleeve against.
In a kind of embodiment of the present utility model：
Buffer unit includes the second adjusting sleeve, and the second adjusting sleeve is connected with the piston rod outside inner chamber；
The one end of second elastic component away from piston and the second adjusting sleeve against.
In a kind of embodiment of the present utility model：
Second adjusting sleeve can move relative to the axis of piston rod.
In a kind of embodiment of the present utility model：
Buffer unit includes cylinder, piston rod, piston, the first elastic component and the second elastic component；
The inner chamber for piston movement, and the opening for being turned on inner chamber and supplying piston rod to pass through are provided with cylinder；
One end of piston rod is stretched into inner chamber by opening and is connected with piston；
First elastic component is arranged on interior intracavitary, and one end of the first elastic component and the one end of cylinder away from opening against,
The other end of first elastic component and piston against；
Second elastic component is arranged in cylinder, and one end of the second elastic component and piston are against the another of, the second elastic component
One end and opening against.
In a kind of embodiment of the present utility model：
Buffer unit includes being arranged on the first adjusting sleeve of opening, and the first adjusting sleeve includes leading to for what piston rod passed through
Hole；
Second elastic component close to one end of opening and the first adjusting sleeve against.
In a kind of embodiment of the present utility model：
The one end of cylinder away from opening is provided with rear earrings, and rear earrings is used to be hinged with mounting platform or arm.
In a kind of embodiment of the present utility model：
The one end of piston rod away from opening is provided with preceding earrings, and preceding earrings is used to be hinged with mounting platform or arm.
A kind of hanging device, including chassis and above-mentioned suspender；
The mounting platform of suspender is arranged on chassis, and mounting platform can rotate relative to chassis.
The technical solution of the utility model at least has the advantages that：
Suspender provided by the utility model, the suspender can avoid the rotation amplitude of arm due to the influence of the weight of lifting
And change too fast so that arm runs more steady during lifting.At the same time, mistake of the arm in work can be ensured
The stability of Cheng Zhongqi operations, avoid producing vibration.In addition, improving the stability of arm operation and reducing the premise of vibration
Under, the structure of suspender can be simplified, and reduce its cost for using and safeguarding.
Brief description of the drawings
, below will be to required use in embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by
Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also
To obtain other related accompanying drawings according to these accompanying drawings.
Fig. 1 is the structural representation of suspender in the utility model embodiment 1；
Fig. 2 is the setting schematic diagram of two buffer units in the utility model embodiment 1；
Fig. 3 is the structural representation of buffer unit in the utility model embodiment 1；
Fig. 4 is the structural representation of buffer unit in the utility model embodiment 1；
Fig. 5 is the structural representation of buffer unit in the utility model embodiment 2.
Icon：200- suspenders；210- mounting platforms；220- arms；230- buffer units；231- cylinders；232- piston rods；
233- pistons；The elastic components of 234- first；The elastic components of 235- second；236- inner chambers；237- is open；The adjusting sleeves of 238- first；239-
Second adjusting sleeve；Earrings before 241-；Earrings after 242-；260- buffer units；261- cylinders；262- piston rods；263- pistons；
The elastic components of 264- first；The elastic components of 265- second；266- inner chambers；267- is open；The adjusting sleeves of 268- first.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.Generally here described in accompanying drawing and
The component of the utility model embodiment shown can be configured to arrange and design with a variety of.
Therefore, the detailed description of the embodiment of the present utility model to providing in the accompanying drawings is not intended to limit requirement below
The scope of the utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in the utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of the utility model protection.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.
In the description of the utility model embodiment, it is necessary to explanation, term " interior ", " under " etc. the orientation of instruction or
Position relationship be based on orientation shown in the drawings or position relationship, or the utility model product using when the side usually put
Position or position relationship, it is for only for ease of description the utility model and simplifies description, rather than instruction or the device for implying meaning
Or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to of the present utility model
Limitation.In addition, term " first ", " second " etc. are only used for distinguishing description, and it is not intended that instruction or hint relative importance.
In the description of the utility model embodiment, it is also necessary to explanation, unless otherwise clearly defined and limited,
Term " setting ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can mechanically connect, can be joined directly together, can also be indirectly connected by intermediary, can be two elements
Internal connection.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood in the utility model
In concrete meaning.
Embodiment 1
It refer to Fig. 1.
Fig. 1 shows the concrete structure of the suspender 200 provided in embodiment.
As can be seen that the suspender 200 includes mounting platform 210, arm 220 and relative to arm from Fig. 1 and Fig. 2
220 symmetrically arranged two buffer units 230.
Arm 220 and mounting platform 210 are be hinged, and arm 220 can be used in lifting work, and by with mounting platform
210 be hinged modes, can be rotated relative to mounting platform 210 so that arm 220 is relative to remote or close mounting platform
210 direction motion, and arm 220 relative to mounting platform 210 rotate during can hoisting material, complete doublet
The change of the position of material.
One end of buffer unit 230 is hinged with the one end of arm 220 away from mounting platform 210, buffer unit 230 it is another
End is be hinged with mounting platform 210, and buffer unit 230 is used to apply damping relative to the rotation of mounting platform 210 to arm 220.
The effect of buffer unit 230 is in arm 220 along relative to the process rotated to the direction away from or close to mounting platform 210
In, the motion to arm 220 applies certain damping so that the motion of arm 220 is more steady, avoids arm 220 from working
During, the reason for by external force or material gravity so that the motion transform amplitude of arm 220 is excessive, causes arm 220
Move it is too fast be not easily controlled, while avoid arm 220 impaired.At the same time, due to being provided with two bufferings on the suspender 200
Device 230, and two buffer units 230 are symmetrical arranged relative to arm 220, so being total to by two buffer units 230
Same-action, balance can be played a part of, avoid the suspender 200 from being vibrated during lifting.
The suspender 200 includes mounting platform 210 and is arranged on the arm 220 for being used to lift on mounting platform 210, and
While arm 220 is hinged with mounting platform 210, it is provided with the both sides of arm 220 relative to 220 symmetrical buffer unit of arm
230.By the way that one end of buffer unit 230 and the one end of arm 220 away from mounting platform 210 are hinged, buffer unit 230 it is another
One end is be hinged with mounting platform 210, just can be when arm 220 is relative to the rotation of the hinged place of mounting platform 210, to arm
220 rotation provides certain damping, avoid arm 220 rotation amplitude change due to the influence of the weight of lifting it is too fast,
So that arm 220 run during lifting it is more steady.At the same time, by the both sides of arm 220 be provided with relative to
The symmetrical buffer unit 230 of arm 220, symmetrical power can be applied to arm 220 during lifting, ensure arm
220 stability that it runs during work, avoid producing vibration.Secondly, such set-up mode, can be hung in raising
Stability that arm 220 is run and on the premise of reducing vibration, simplifies the structure of suspender 200, and reduce that it uses and safeguard into
This.
Specifically, in the present embodiment, refer to Fig. 3 and Fig. 4, buffer unit 230 include cylinder 231, piston rod 232,
Piston 233, the first elastic component 234 and the second elastic component 235, cylinder 231 is interior to be provided with inner chamber 236, and is turned on inner chamber 236
And for the opening 237 that piston rod 232 passes through, piston 233 is arranged in inner chamber 236 and can moved in inner chamber 236.Piston rod
232 one end can be stretched into inner chamber 236 by opening 237 and is connected with piston 233.In addition, the first elastic component 234 is arranged on inner chamber
In 236, and one end of the first elastic component 234 and opening 237 are against the other end and the piston 233 of the first elastic component 234 support
Lean on, the second elastic component 235 is arranged on outside cylinder 231, and one end of the second elastic component 235 and opening 237 are against second is elastic
The other end of part 235 and the one end of piston rod 232 away from piston 233 against.With reference to the working condition of suspender 200, due to arm
220, in motion, can drive piston rod 232 to move, therefore because piston rod 232 is connected with piston 233, so can be in arm
During 220 motion, the length that piston rod 232 is stretched into inner chamber 236 can be changed.Thus, when stretch into the length in cylinder 231 increase,
The length of piston rod 232 outside cylinder 231 is reduced, and now causes the first bullet being arranged between opening 237 and piston 233
Property part 234 be in relaxation state, and the second elastic component 235 outside cylinder 231 will be compressed, in the first elastic component 234
Loosen and the second elastic component 235 compress when, certain resistance will be provided, to slow down the motion of piston rod 232, avoid piston rod
232 occur significantly to deform, so that the motion of arm 220 is more steady.Similarly, when stretching into the length in cylinder 231
Reduce, the length increase of the piston rod 232 outside cylinder 231, now to be arranged between opening 237 and piston 233
First elastic component 234 is in compressive state, and the second elastic component 235 outside cylinder 231 will loosen, in the first elastic component
When 234 compressions and the second elastic component 235 loosen, certain resistance will be provided, to slow down the motion of piston rod 232 so that hang
The motion of arm 220 is more steady.
Further, in the present embodiment, buffer unit 230 can also include the first adjusting sleeve 238 and the second adjusting sleeve
239, the first adjusting sleeve 238 is arranged at opening 237, and the first adjusting sleeve 238 is provided with the through hole passed through for piston rod 232, the
One elastic component 234 and the second elastic component 235 close to one end of opening 237 with the first adjusting sleeve 238 against.Second adjusting sleeve
239 are connected with the piston rod 232 outside inner chamber 236, while the second adjusting sleeve 239 can move relative to the axis of piston rod 232
It is dynamic, and could be secured on the piston rod 232 outside cylinder 231, the one end of the second elastic component 235 away from piston 233 with
Second adjusting sleeve 239 against.It can be facilitated to the first elastic component by the setting of the first adjusting sleeve 238 and the second adjusting sleeve 239
234 and second elastic component 235 installation.Meanwhile by adjusting position of second adjusting sleeve 239 on piston rod 232, while it is right
The adjustment of the coefficient of elasticity of first elastic component 234 and the second elastic component 235, the damping that the buffer unit 230 can be provided
It is adjusted.
Secondly, in the present embodiment, the one end of piston rod 232 away from opening 237 is provided with preceding earrings 241, and preceding earrings 241 is used
In be hinged with mounting platform 210 or arm 220.The one end of cylinder 231 away from opening 237 is provided with rear earrings 242, rear earrings 242
For be hinged with mounting platform 210 or arm 220.
Based on above-mentioned suspender 200, the invention also discloses a kind of hanging device, it includes chassis and above-mentioned
Suspender 200, the mounting platform 210 of suspender 200 is arranged on chassis, and mounting platform 210 can rotate relative to chassis.
The operation principle of the suspender 200 is：
The suspender 200 includes mounting platform 210 and is arranged on the arm 220 for being used to lift on mounting platform 210, and
While arm 220 is hinged with mounting platform 210, it is provided with the both sides of arm 220 relative to 220 symmetrical buffer unit of arm
230.By the way that one end of buffer unit 230 and the one end of arm 220 away from mounting platform 210 are hinged, buffer unit 230 it is another
One end is be hinged with mounting platform 210, just can be when arm 220 is relative to the rotation of the hinged place of mounting platform 210, to arm
220 rotation provides certain damping, avoid arm 220 rotation amplitude change due to the influence of the weight of lifting it is too fast,
So that arm 220 run during lifting it is more steady.At the same time, by the both sides of arm 220 be provided with relative to
The symmetrical buffer unit 230 of arm 220, symmetrical power can be applied to arm 220 during lifting, ensure arm
220 stability that it runs during work, avoid producing vibration.Secondly, such set-up mode, can be hung in raising
Stability that arm 220 is run and on the premise of reducing vibration, simplifies the structure of suspender 200, and reduce that it uses and safeguard into
This.
Embodiment 2
Fig. 5 is refer to, Fig. 5 shows the concrete structure of the suspender (not shown) provided in embodiment.Can from Fig. 1
To find out, the suspender includes mounting platform (not shown), arm (not shown) and is symmetrical arranged relative to arm
Two buffer units 260.
The suspender that the present embodiment provides is roughly the same with the suspender in embodiment 1, and its difference is.In the present embodiment
In, buffer unit 260 can include cylinder 261, piston rod 262, piston 263, the first elastic component 264 and the second elastic component
265, cylinder 261 is interior to be provided with the inner chamber 266 moved for piston 263, and turn on inner chamber 266 and pass through for piston rod 262
Opening 267.One end of piston rod 262 can be stretched into inner chamber 266 by opening 267 and is connected with piston 263, the first elastic component 264
And second elastic component 265 be arranged in inner chamber 266.
And one end of the first elastic component 264 is with the one end of cylinder 261 away from opening 267 against the first elastic component 264
The other end and piston 263 against.One end of second elastic component 265 and piston 263 against, the other end of the second elastic component 265 with
Opening 267 against.
Buffer unit 260 includes being arranged on the first adjusting sleeve 268 at opening 267, and the first adjusting sleeve 268 includes supplying piston
The through hole that bar 262 passes through, the second elastic component 265 close to one end of opening 267 and the first adjusting sleeve 268 against.
With reference to the working condition of suspender, because arm is in motion, piston rod 262 can be driven to move, therefore due to piston rod
262 are connected with piston 263, so can change the length that piston rod 262 is stretched into inner chamber 266 when arm moves.By
This, when stretching into the increase of the length in cylinder 261, the length of the piston rod 262 outside cylinder 261 is reduced, and now to set
The second elastic component 265 between opening 267 and piston 263 is in relaxation state, and the first elastic component in cylinder 261
264 will be compressed, and when the first elastic component 264 compresses and the second elastic component 265 loosens, will provide certain resistance, be come
Slow down the motion of piston rod 262, avoid piston rod 262 from occurring significantly to deform, so that the motion of arm is more steady.
Similarly, when stretching into the reduction of the length in cylinder 261, the length increase of the piston rod 262 outside cylinder 261, now to set
Put the second elastic component 265 between opening 267 and piston 263 and be in compressive state, and first in cylinder 261 is elastic
Part 264 will loosen, and when the first elastic component 264 compresses and the second elastic component 265 loosens, will provide certain resistance, come
Slow down the motion of piston rod 262 so that the motion of arm is more steady.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model
Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.
Claims (10)
- A kind of 1. suspender, it is characterised in that：The suspender includes mounting platform, arm and relative to symmetrically arranged two buffer unit of the arm；The arm is hinged with the mounting platform；One end of the buffer unit is hinged with the one end of the arm away from the mounting platform, the buffer unit it is another End is hinged with the mounting platform；The buffer unit is used to apply damping relative to the rotation of the mounting platform to the arm.
- 2. suspender according to claim 1, it is characterised in that：The buffer unit includes cylinder, piston rod, piston, the first elastic component and the second elastic component；Inner chamber is provided with the cylinder, and the opening for turning on and supplying the piston rod to pass through with the inner chamber, the piston are set Put in the interior intracavitary and can be moved in the inner chamber；One end of the piston rod is stretched into the inner chamber by the opening and is connected with the piston；First elastic component is arranged on the interior intracavitary, and one end of first elastic component is open against institute with described State the other end of the first elastic component and the piston against；Second elastic component is arranged on outside the cylinder, and one end of second elastic component is open against institute with described State the other end of the second elastic component and the one end of the piston rod away from the piston against.
- 3. suspender according to claim 2, it is characterised in that：The buffer unit includes being arranged on the first adjusting sleeve of the opening, and first adjusting sleeve includes supplying the piston The through hole that bar passes through；First elastic component and second elastic component close to one end of the opening with first adjusting sleeve against.
- 4. suspender according to claim 2, it is characterised in that：The buffer unit includes the second adjusting sleeve, and second adjusting sleeve connects with the piston rod outside the inner chamber Connect；The one end of second elastic component away from the piston and second adjusting sleeve against.
- 5. suspender according to claim 4, it is characterised in that：Second adjusting sleeve can move relative to the axis of the piston rod.
- 6. suspender according to claim 1, it is characterised in that：The buffer unit includes cylinder, piston rod, piston, the first elastic component and the second elastic component；The inner chamber for the piston movement is provided with the cylinder, and is turned on the inner chamber and supplies what the piston rod passed through Opening；One end of the piston rod is stretched into the inner chamber by the opening and is connected with the piston；First elastic component is arranged on the interior intracavitary, and one end of first elastic component and cylinder are away from the opening One end against, first elastic component the other end and the piston against；Second elastic component is arranged in the cylinder, and one end of second elastic component and the piston are against institute State the other end of the second elastic component and the opening against.
- 7. suspender according to claim 6, it is characterised in that：The buffer unit includes being arranged on the first adjusting sleeve of the opening, and first adjusting sleeve includes supplying the piston The through hole that bar passes through；Second elastic component close to one end of the opening and first adjusting sleeve against.
- 8. suspender according to claim 2, it is characterised in that：The one end of the cylinder away from the opening is provided with rear earrings, it is described after earrings be used for and the mounting platform or described hang Arm is hinged.
- 9. suspender according to claim 2, it is characterised in that：The one end of the piston rod away from the opening is provided with preceding earrings, and the preceding earrings is used for and the mounting platform or described Arm is hinged.
- A kind of 10. hanging device, it is characterised in that：The hanging device includes the suspender described in any one in chassis and claim 1-9；The mounting platform of the suspender is arranged on the chassis, and the mounting platform can rotate relative to the chassis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721254530.4U CN207209828U (en) | 2017-09-27 | 2017-09-27 | A kind of suspender and hanging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721254530.4U CN207209828U (en) | 2017-09-27 | 2017-09-27 | A kind of suspender and hanging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207209828U true CN207209828U (en) | 2018-04-10 |
Family
ID=61819597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721254530.4U Active CN207209828U (en) | 2017-09-27 | 2017-09-27 | A kind of suspender and hanging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207209828U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115557390A (en) * | 2022-09-15 | 2023-01-03 | 中联重科股份有限公司 | Suspension arm lifting control system, tower crane and hydraulic control loop of damping oil cylinder |
-
2017
- 2017-09-27 CN CN201721254530.4U patent/CN207209828U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115557390A (en) * | 2022-09-15 | 2023-01-03 | 中联重科股份有限公司 | Suspension arm lifting control system, tower crane and hydraulic control loop of damping oil cylinder |
| CN115557390B (en) * | 2022-09-15 | 2024-04-16 | 中联重科股份有限公司 | Boom lifting control system, tower crane and hydraulic control loop of damping cylinder |
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