CN206872313U - The flexible arm system of cable drum device, single-cylinder bolt and crane - Google Patents
The flexible arm system of cable drum device, single-cylinder bolt and crane Download PDFInfo
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- CN206872313U CN206872313U CN201720428716.0U CN201720428716U CN206872313U CN 206872313 U CN206872313 U CN 206872313U CN 201720428716 U CN201720428716 U CN 201720428716U CN 206872313 U CN206872313 U CN 206872313U
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- cable
- cable drum
- moving component
- detection part
- drum device
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Abstract
It the utility model is related to the flexible arm system of a kind of cable drum device, single-cylinder bolt and crane, wherein, cable drum device includes cable drum (4), cable (5) and buffer unit, cable (5) is wrapped on cable drum (4), and the external part of cable (5) is connected on moving component by buffer unit, stretch out or withdraw to be realized with the motion of moving component, buffer unit can realize buffering after cable drum (4) clamping stagnation and before moving component stop motion.Cable drum device of the present utility model can be when generation clamping stagnation can not make cable continue to stretch out, instruction to the period between stop motion that stop motion is received in moving component by buffer unit realizes buffering, to reduce the traction action power put on due to the inertia of moving component on cable, the situation that cable is broken by force occurs after preventing cable drum clamping stagnation.
Description
Technical field
Technical field of engineering machinery is the utility model is related to, more particularly to a kind of cable drum device, single-cylinder bolt stretch
Arm system and crane.
Background technology
For single-cylinder plug type telescopic jib crane, telescopic oil cylinder can inside semi-girder stretching motion, stretched for controlling
The stretching or retraction of arm configuration.As shown in figure 1, the cylinder rod 3a of telescopic oil cylinder is fixed on semi-girder afterbody, cylinder barrel 1a is inside semi-girder
Stretching motion.
Multiple electrically detection means and solenoid valve control circuits are installed on the cylinder barrel 1a of telescopic oil cylinder.In semi-girder afterbody
Cable drum 4a is installed, cable 2a is wrapped on cable drum 4a, and cable 2a external part is fixed on the cylinder of telescopic oil cylinder
On cylinder 1a, it can stretch out or withdraw with the motion of telescopic oil cylinder, for realizing the cylinder barrel 1a and semi-girder afterbody of telescopic oil cylinder
Electrical connection, for transmitting telecommunication number.When telescopic oil cylinder stretches out, cable 2a is drawn out from cable drum 4a, when flexible oil
When cylinder is retracted, the cable 2a of stretching is withdrawn and is wrapped on cable drum 4a due to its internal wind spring power by cable drum 4a.
At work, when running into some special circumstances, the operation of drum mechanism built may be sent out single-cylinder bolt type telescopic boom
Raw clamping stagnation so that cable 2a can not normally stretch out from cable drum 4a cylinder, now hold if telescopic oil cylinder continues to stretch out
It is easily caused cable 2a to be broken by force, causes semi-girder electrical system to break down.
Utility model content
The purpose of this utility model is to propose the flexible arm system of a kind of cable drum device, single-cylinder bolt and crane, energy
It is enough to prevent moving component from continuing motion and causing cable to be broken by force in cable drum generation sports cards hysteresis.
To achieve the above object, the utility model first aspect provides a kind of cable drum device, including cable drum,
Cable and buffer unit, the cable are wrapped on the cable drum, and the external part of the cable passes through the buffer part
Part is connected on moving component, is stretched out or is withdrawn to be realized with the motion of the moving component, the buffer unit can be
Buffering is realized after the cable drum clamping stagnation and before the moving component stop motion.
Further, the buffer unit is flexible member, and the flexible member can be in the direction of motion of the cable
On deform.
Further, the flexible member is extension spring or elastic threads.
Further, in addition to controller and stretched out or the detection part of retracted state for detecting the cable, it is described
Detection part is located on the cable drum, and the controller is connected with the detection part, is sent out according to the detection part
In the case that the detection signal sent determines that clamping stagnation occurs for the cable drum, the finger of stop motion is sent to the moving component
Order.
Further, the detection part is used for the extension elongation for detecting the cable, and the controller is according to
The extension elongation signal that detection part is sent determines that the extension elongation rate of change of the cable is less than the situation of the first preset value
Under, the instruction of stop motion is sent to the moving component.
Further, the detection part is used for the stretching speed for detecting the cable, and the controller is according to
The stretching rate signal that detection part is sent determines that the stretching percentage speed variation of the cable is less than the situation of the second preset value
Under, the instruction of stop motion is sent to the moving component.
Further, the detection part is used for the extension elongation for detecting the cable and stretches out speed, the controller
The extension elongation rate of change of the cable is determined in the extension elongation and stretching rate signal sent according to the detection part
Less than the first preset value and percentage speed variation is stretched out less than in the case of the second preset value, is sent to the moving component and is stopped fortune
Dynamic instruction.
Further, in addition to mounting bracket, the mounting bracket are located on the moving component, the buffer unit
One end is connected in the mounting bracket.
To achieve the above object, the utility model second aspect provides a kind of flexible arm system of single-cylinder bolt, including upper
State the cable drum device, telescopic oil cylinder and semi-girder of embodiment, the moving component is the cylinder barrel of the telescopic oil cylinder, the electricity
Cable is used for the electrical connection for realizing the cylinder barrel and semi-girder afterbody.
To achieve the above object, the utility model third aspect provides a kind of crane, includes the list of above-described embodiment
Cylinder latch stretches arm system.
Based on above-mentioned technical proposal, the cable drum device of the utility model embodiment, the external part of cable is passed through slow
Rush part to be connected on moving component, stretch out or withdraw to be realized with the motion of moving component, if cable drum is rotating
During occur clamping stagnation and cable can not be made to continue to stretch out, buffer unit can receive the instruction of stop motion extremely in moving component
Period between stop motion realizes buffering, to reduce the traction action put on due to the inertia of moving component on cable
Power, the situation that cable is broken by force occurs after preventing cable drum clamping stagnation.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding to of the present utility model, forms the part of the application,
Schematic description and description of the present utility model is used to explain the utility model, does not form to of the present utility model improper
Limit.In the accompanying drawings：
Fig. 1 is scheme of installation of the cable drum in single-cylinder bolt stretches arm system in the prior art；
Fig. 2 is that installation of the one embodiment of the utility model cable drum device in single-cylinder bolt stretches arm system is shown
It is intended to；
Fig. 3 is enlarged drawing at the A of cable drum device shown in Fig. 2.
Description of reference numerals
1a, cylinder barrel；2a cables；3a cylinder rods；4a, cable drum；
1st, cylinder barrel；2nd, cylinder rod；3rd, directive wheel；4th, cable drum；5th, cable；6th, extension spring；7th, mounting bracket.
Embodiment
The utility model described further below.In the following paragraphs, the different aspect of embodiment is defined in more detail.
The each side so limited can combine with any other one side or many aspects, not can be combined unless explicitly stated otherwise.Especially
It is, it is considered to be preferable or favourable any feature can be considered as preferable or favourable spy with other one or more
Sign combination.
The term descriptions merely for convenience such as " first " that occurs in the utility model, " second ", with distinguish have it is identical
The different building blocks of title, it is not offered as priority or primary-slave relation.
In description of the present utility model, it is to be understood that term "front", "rear", " on ", " under ", " interior " and " outer "
Orientation or position relationship Deng instruction are based on orientation shown in the drawings or position relationship.These are used to be for only for ease of description
The utility model, rather than the device of instruction or hint meaning must have specific orientation, with specific azimuth configuration and behaviour
Make, therefore it is not intended that limitation to scope of protection of the utility model.
The utility model provides a kind of cable drum device, for solving the electrical connection demand of moving component, one
In individual schematical embodiment, with reference to shown in figure 2, cable drum device includes cable drum 4, cable 5 and buffer unit.Make
Cable drum 4 is fixedly mounted on default position by the used time, and cable 5 is wrapped on cable drum 4, and cable 5 external part (or
Claim free leading-out terminal) it is connected to by buffer unit on moving component, stretch out or withdraw to be realized with the motion of moving component.
When moving component is directed away from the direction motion of cable drum 4, cable 5 stretches out from cable drum 4, when moving component is remote
During the direction motion of cable drum 4, due to being acted on by the interior roll spring force of cable drum 4, the additional length of cable 5 is withdrawn simultaneously
On the cable drum 4 of winding.
In the course of the work if clamping stagnation occurs for cable drum 4, cable drum 4 can not be rotated further, and cable 5 cannot
Continue to stretch out to provide the cable needed for moving component persistent movement, now for the sake of security, it is necessary to send to moving component
The instruction of stop motion, specifically, instruction can be sent by the controller set in cable drum device.But due to motion
Part by inertia force effect can not stop motion immediately, one section of buffer distance be present, and buffer unit can be in motion portion
Instruction to the period between stop motion that part receives stop motion realizes buffering, to reduce because the inertia of moving component is applied
The traction action power being added on cable, the situation that cable is broken by force occurs after preventing the clamping stagnation of cable drum 4, improves coil of cable
Wound packages puts the reliability of work.
In a kind of structure type, buffer unit includes at least two sections of mutually nested structures, and adjacent two sections mutually nested
Structure between can be movable relatively, to form the telescopic structure of entire length.If clamping stagnation, motion portion occur for cable drum 4
Part moves forward after the instruction of stop motion is received, and providing tractive force to one end of buffer unit makes adjacent two sections of nestings
Structure relative motion, so that the entire length increase of buffer unit, plays cushioning effect.
In another structure type, buffer unit is flexible member, and flexible member can be in the direction of motion of cable 5
Deform.As shown in Figures 2 and 3, flexible member is extension spring 6, and extension spring 6 also possesses preferably while cushioning effect is played
Intensity, it is not easy to be broken, reliability and service life are higher.Alternately, flexible member can also be elastic threads etc..
Cable drum device of the present utility model can be used in the single-cylinder bolt type telescopic boom system of crane, with reference to figure 2,
The motion of semi-girder is driven by telescopic oil cylinder, and telescopic oil cylinder is located inside semi-girder, and the cylinder rod 2 of telescopic oil cylinder is fixed on semi-girder tail
Portion, the stretching motion inside semi-girder of cylinder barrel 1.Moving component in above-described embodiment is cylinder barrel 1, in order to realize semi-girder afterbody with
The electrical connection of cylinder barrel 1, the cable drum 4 in cable drum device of the present utility model is arranged on semi-girder afterbody, cable 5 twines
It is wound on cable drum 4, external part is connected on the cylinder barrel 1 of telescopic oil cylinder by buffer unit (such as extension spring 6).Hereafter
Cable drum device illustrates exemplified by being used in single-cylinder bolt type telescopic boom system, and certain cable drum device can also be used
In the electrical connection for realizing other kinds of athletic parts.
In order to be oriented to the cable 5 stretched out from cable drum 4, so that cable 5 stretches out according to default track,
The radial position of cable drum 4 is additionally provided with directive wheel 3, after the external part of cable 5 bypasses directive wheel 3, then is connected by buffer unit
It is connected on the cylinder barrel 1 of telescopic oil cylinder.
In order to facilitate the connection of the exit of cable 5 and cylinder barrel 1, be advantageous to assembled in situ, be additionally provided with the outer wall of cylinder barrel 1
Mounting bracket 7, mounting bracket 7, such as triangular supports are preferably set in the external wall of upper portion face of cylinder barrel 1, by buffer unit
One end is connected on one of angle of triangular supports.
After clamping stagnation occurs for cable drum 4, it should send the instruction of stop motion to moving component immediately, should avoid excessively
Pull cable 5.Therefore, cable drum device of the present utility model may also include detection part and controller, detection part is located at
On cable drum 4, the stretching current for real-time detection cable 5 or retracted state.With the stretching of telescopic oil cylinder, cable drum
The length value of the cable 5 of 4 outputs should gradually increase, while the current signal exported according to crane electrical system control, cable 5
Locomotion speed value also should be in rational scope in.
Controller is connected with detection part, whether can judge cable drum 4 according to the detection signal that detection part is sent
Generation clamping stagnation, and send stop motion to the cylinder barrel 1 as moving component in the case where determining that clamping stagnation occurs for cable drum 4
Instruction.Wherein, controller etc. can be the specific hardware unit of the compositions such as PLC, integrated circuit, associated components.
In the first implementation, detection part is used for the current extension elongation of real-time detection cable 5 and is sent to control
Device processed, controller determine that the extension elongation rate of change of cable 5 is less than the in the extension elongation signal sent according to detection part
In the case of one preset value, i.e., cable 5 judges that cable drum 4 is sent out close to the state for not continuing to stretch out from cable drum 4
Clamping stagnation is given birth to, and the instruction of stop motion is sent to cylinder barrel 1.
In second of implementation, detection part is used for the current stretching speed of real-time detection cable 5 and is sent to control
Device processed, controller determine that the stretching percentage speed variation of cable 5 is less than the in the stretching rate signal sent according to detection part
In the case of two preset values, i.e., cable 5 is in the state that stretching slows or speed is zero, judges that cable drum 4 occurs
Clamping stagnation, and to cylinder barrel 1 send stop motion instruction.
In the third implementation, detection part is used for the current extension elongation of real-time detection cable 5 and stretches out speed
And controller is sent to, controller determines cable 5 in the extension elongation and stretching rate signal sent according to detection part
Extension elongation rate of change is less than the first preset value and stretches out percentage speed variation less than in the case of the second preset value, judges coil of cable
Clamping stagnation occurs for cylinder 4, and the instruction of stop motion is sent to cylinder barrel 1.Such a mode is entered to the extension elongation and speed of cable 5 simultaneously
Row judges, can more accurately judge whether cable 5 is in clamping stagnation state, avoid producing mistake due to detection part failure
Judge, so as to cause telescopic oil cylinder that unnecessary interrupting movement occurs in the course of the work.
Controller mentioned above, which can be integrated on crane, to be controlled in the flexible electrical system of semi-girder, is being controlled
When, while controller output current signal control telescopic oil cylinder stretches out or retracted, moreover it is possible to according to the extension elongation and speed of cable 5
Degree judges whether cable drum 4 occurs card line.The function of controller combines the thought of lifting electrical-mechanical system closed-loop control, energy
It is enough to control cylinder barrel 1 to stop in the case where determining that clamping stagnation occurs for cable drum 4 in the detection signal sent according to detection part
Motion.Cable drum device of the present utility model is simple in construction, cost is cheap, hardly increases site-assembled difficulty, can be with
Effectively when avoiding telescopic arm, situation that cable is pulled off.In addition, the setting of controller is independently of lifting electrical-mechanical system
System.
Secondly, the utility model additionally provides a kind of single-cylinder bolt and stretched arm system, including telescopic oil cylinder, semi-girder and above-mentioned
The cable drum device of embodiment, moving component are the cylinder barrel 1 of telescopic oil cylinder, and cable 5 is used to realize cylinder barrel 1 and semi-girder afterbody
Electrical connection.
By setting buffer unit between the external part of cable 5 and cylinder barrel 1 in cable drum device, moved in cylinder barrel 1
When controlling semi-girder stretching, if cable drum 4 occurs clamping stagnation in rotation process and cable 5 can not be made to continue to stretch out, at this moment need
Controller is wanted to send the instruction of stop motion to cylinder barrel 1, but cylinder barrel 1 can also be travelled forward due to effect of inertia.From cylinder barrel 1
The instruction for receiving stop motion was arrived in the period of stop motion, and the motional inertia that buffer unit can reduce cylinder barrel 1 is put on
Traction action power on cable 5, the situation that cable 5 is broken by force occurs after preventing the clamping stagnation of cable drum 4, so as to improve cylinder barrel
1 reliability being connected with semi-girder aft electrical, avoids the electrical system of semi-girder from breaking down, and ensures the flexible arm system of single-cylinder bolt
Normal work.
Finally, the utility model additionally provides a kind of crane, including the single-cylinder bolt telescopic arm described in above-described embodiment
System.Because the single-cylinder bolt arm system that stretches possesses higher reliability at work, so crane of the present utility model
Possess higher reliability and security.
A kind of cable drum device provided by the utility model, the flexible arm system of single-cylinder bolt and crane are entered above
Go and be discussed in detail.Specific embodiment used herein is set forth to principle of the present utility model and embodiment,
The explanation of above example is only intended to help and understands method and its core concept of the present utility model.It should be pointed out that for this
, can also be to the utility model on the premise of the utility model principle is not departed from for the those of ordinary skill of technical field
Some improvement and modification are carried out, these are improved and modification is also fallen into the protection domain of the utility model claims.
Claims (10)
1. a kind of cable drum device, it is characterised in that including cable drum (4), cable (5) and buffer unit, the cable
(5) it is wrapped on the cable drum (4), and the external part of the cable (5) is connected to motion portion by the buffer unit
On part, stretch out or withdraw to be realized with the motion of the moving component, the buffer unit can be in the cable drum (4)
Buffering is realized after clamping stagnation and before the moving component stop motion.
2. cable drum device according to claim 1, it is characterised in that the buffer unit is flexible member, described
Flexible member can deform in the direction of motion of the cable (5).
3. cable drum device according to claim 2, it is characterised in that the flexible member is extension spring (6) or elasticity
Rope.
4. according to any described cable drum device of claims 1 to 3, it is characterised in that also including controller and for examining
The detection part of the cable (5) stretching or retracted state is surveyed, the detection part is located on the cable drum (4), described
Controller is connected with the detection part, and the cable drum is determined in the detection signal sent according to the detection part
(4) in the case of clamping stagnation occurring, the instruction of stop motion is sent to the moving component.
5. cable drum device according to claim 4, it is characterised in that the detection part is used to detect the cable
(5) extension elongation, the controller determine the cable (5) in the extension elongation signal sent according to the detection part
Extension elongation rate of change be less than the first preset value in the case of, to the moving component send stop motion instruction.
6. cable drum device according to claim 4, it is characterised in that the detection part is used to detect the cable
(5) stretching speed, the controller determine the cable (5) in the stretching rate signal sent according to the detection part
Stretching percentage speed variation be less than the second preset value in the case of, to the moving component send stop motion instruction.
7. cable drum device according to claim 4, it is characterised in that the detection part is used to detect the cable
(5) extension elongation and stretching speed, the controller is in the extension elongation sent according to the detection part and stretches out speed
Signal determines that the extension elongation rate of change of the cable (5) is less than the first preset value and stretching percentage speed variation is pre- less than second
If in the case of value, the instruction of stop motion is sent to the moving component.
8. cable drum device according to claim 1, it is characterised in that also including mounting bracket (7), the installation branch
Frame (7) is located on the moving component, and one end of the buffer unit is connected in the mounting bracket (7).
The arm system 9. a kind of single-cylinder bolt stretches, it is characterised in that including telescopic oil cylinder, semi-girder and any institute of claim 1~8
The cable drum device stated, the moving component are the cylinder barrel (1) of the telescopic oil cylinder, and the cable (5) is described for realizing
The electrical connection of cylinder barrel (1) and semi-girder afterbody.
10. a kind of crane, it is characterised in that including the flexible arm system of single-cylinder bolt described in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720428716.0U CN206872313U (en) | 2017-04-24 | 2017-04-24 | The flexible arm system of cable drum device, single-cylinder bolt and crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720428716.0U CN206872313U (en) | 2017-04-24 | 2017-04-24 | The flexible arm system of cable drum device, single-cylinder bolt and crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206872313U true CN206872313U (en) | 2018-01-12 |
Family
ID=61343082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720428716.0U Active CN206872313U (en) | 2017-04-24 | 2017-04-24 | The flexible arm system of cable drum device, single-cylinder bolt and crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206872313U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU182898U1 (en) * | 2018-06-19 | 2018-09-05 | Общество с ограниченной ответственностью "Научно-производственное предприятие "ЭГО" | Cable communication device of sections of a telescopic boom of a lifting machine |
| CN110240021A (en) * | 2019-06-28 | 2019-09-17 | 三一汽车起重机械有限公司 | The monitoring method of cable, processor and system in single-cylinder bolt type telescopic boom |
-
2017
- 2017-04-24 CN CN201720428716.0U patent/CN206872313U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU182898U1 (en) * | 2018-06-19 | 2018-09-05 | Общество с ограниченной ответственностью "Научно-производственное предприятие "ЭГО" | Cable communication device of sections of a telescopic boom of a lifting machine |
| CN110240021A (en) * | 2019-06-28 | 2019-09-17 | 三一汽车起重机械有限公司 | The monitoring method of cable, processor and system in single-cylinder bolt type telescopic boom |
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