CN208053478U - Crawler crane and lifting unit - Google Patents
Crawler crane and lifting unit Download PDFInfo
- Publication number
- CN208053478U CN208053478U CN201820547773.5U CN201820547773U CN208053478U CN 208053478 U CN208053478 U CN 208053478U CN 201820547773 U CN201820547773 U CN 201820547773U CN 208053478 U CN208053478 U CN 208053478U
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- pars contractilis
- guide part
- switching valve
- fixed part
- crawler crane
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Abstract
The utility model discloses a kind of crawler crane and lifting units, to solve the technical problem that crawler crane in the prior art uses backing plate that jack tension track is added to cause tensioner operating efficiency low.The crawler crane includes track beam, crawler belt, wheel body, guide part and telescoping mechanism；Wherein, crawler belt is supported on track beam, and guide part is coaxially disposed with wheel body；Telescoping mechanism include fixed part and with fixed part grafting and the pars contractilis that can be moved relative to fixed part, fixed part connect with track beam, and pars contractilis is connect with guide part, for driving guide part to pass through wheel body tension track.
Description
Technical field
The utility model is related to technical field of engineering machinery, more particularly to a kind of crawler crane and lifting unit.
Background technology
Crawler crane is that hoisting operation is partially contained on crawler body, and walking relies on the flow-type lifting of crawler attachment
Machine.
Crawler crane in application process, need to carry out tensioner to crawler belt therein, the prior art mainly adopts backing plate plus
The mode of jack carries out tensioner to crawler belt.
However, although backing plate adds the of low cost of jack tensioner mode, operation difficulty is high, especially, in environment
Severe construction site, backing plate and jack are more difficult to successfully in place, and then tensioner operation is caused to expend a large amount of working hours, finally
So that efficiency is greatly reduced.
Utility model content
The purpose of this utility model is to provide a kind of crawler cranes, are adopted with solving crawler crane in the prior art
The technical problem for causing tensioner operating efficiency low with backing plate plus jack tension track.
The utility model provides a kind of crawler crane, which includes track beam, crawler belt, wheel body, guide part
And telescoping mechanism；Wherein,
The crawler belt is supported on the track beam, and the guide part is coaxially disposed with the wheel body；
The telescoping mechanism include fixed part and with the fixed part grafting and can be moved relative to the fixed part
Pars contractilis, the fixed part are connect with the track beam, and the pars contractilis is connect with the guide part, for driving the guiding
Part passes through crawler belt described in the wheel body tensioner.
Further, further include the connector being connected between the pars contractilis and the guide part, the pars contractilis is logical
It crosses the connector and drives the guide part.
Further, the connector includes the first end and second end being oppositely arranged；
The first end is connected with the pars contractilis, and the second end is fixedly connected with the guide part.
Further, further include hoop component, the fixed part is pressed on by the hoop component on the track beam.
Further, further include fastening assembly；
The fixed part includes the inserted terminal being oppositely arranged and fixing end, the pars contractilis and the inserted terminal grafting, institute
Fixing end is stated to connect by the fastening assembly with the track beam.
Further, including track assembly, the track assembly include the track beam, the crawler belt, the wheel body, institute
State guide part and the telescoping mechanism；
Including two track assemblies, two track assemblies are oppositely arranged along the width direction of the crane.
Further, the telescoping mechanism is telescopic oil cylinder, and the telescoping mechanism has big chamber and small chamber；
When the pars contractilis is connect with the big chamber, the pars contractilis drives the guide part to pass through the wheel body tensioner
The crawler belt；When the pars contractilis is connect with the small chamber, the pars contractilis is bounced back relative to the fixed part so that described
Slack of track.
Further, further include control system；The control system include the first solenoid valve and with first solenoid valve
Reversal valve, the first switching valve and the second switching valve of connection simultaneously, first switching valve and second switching valve with two
Two big chambers of the telescoping mechanism connect one to one；
When first solenoid valve is connected, the pilot pressure oil of the control system passes through the reversal valve, described
One switching valve and second switching valve are individually directed two big chambers, so as to be stretched described in two of two telescoping mechanisms
Contracting portion respectively drives two guide parts.
Further, the control system further includes second solenoid valve, the reversal valve, first switching valve and described
Second switching valve is connect with the second solenoid valve simultaneously, first switching valve and second switching valve with stretched described in two
Two small chambers of contracting mechanism connect one to one；
When the second solenoid valve is connected, the pilot pressure oil of the control system passes through the reversal valve, described
One switching valve and second switching valve are individually directed two small chambers, so as to be stretched described in two of two telescoping mechanisms
Contracting portion is respectively relative to two fixed part retractions.
Crawler crane provided by the utility model includes track beam, crawler belt, wheel body, guide part and telescoping mechanism, wherein
Crawler belt is supported on track beam, and guide part is coaxially disposed with wheel body；Wherein, telescoping mechanism include fixed part and with fixed part grafting
And the pars contractilis that can be moved relative to fixed part, fixed part are connect with track beam, pars contractilis is connect with guide part, for driving
Guide part passes through wheel body tension track.
It, can be by the switch of manual operation control system, with the pars contractilis of timing controlled telescoping mechanism when concrete application
It is flexible.When telescoping mechanism pars contractilis stretch out fixed part when, the pars contractilis drive guide part, guide part by wheel body to crawler belt into
Row tensioner, when the pars contractilis of telescoping mechanism bounces back relative to fixed part, then the expanding force of crawler belt disappears, slack of track.It compares
In the prior art, automatic tension is carried out to crawler belt using telescoping mechanism or is loosened, since the control operation of telescoping mechanism is very convenient,
So that operation is simple for the tensioner of crawler belt, also, its expanding force is determined by the blocking force of telescoping mechanism, and tensioner displacement is by stretching
Contracting actuator travel determines, efficient, and tensioner operation is in time and reliable.
The another object of the utility model, which also resides in, provides a kind of lifting unit, which includes as described above carry out
Band crane.
The advantageous effect of lifting unit provided by the utility model compared with the prior art, is same as provided by the utility model
The advantageous effect of crawler crane compared with the prior art, details are not described herein again.
Description of the drawings
The attached drawing for constituting the part of the utility model is used to provide a further understanding of the present invention, this practicality is new
The illustrative embodiments and their description of type are not constituted improper limits to the present invention for explaining the utility model.?
In attached drawing：
Fig. 1 is the first schematic diagram according to the crawler crane of the utility model embodiment；
Fig. 2 is the right view of Fig. 1；
Fig. 3 is the second schematic diagram according to the crawler crane of the utility model embodiment；
Fig. 4 is the schematic diagram according to the control system of the utility model embodiment.
In figure：
1- track beams；2- crawler belts；3- wheel bodys；4- guide parts；5- telescoping mechanisms；6- connectors；7- anchor ear groups
Part；8- fastening assemblies；9- third solenoid valves；The first solenoid valves of 10-；11- second solenoid valves；The first switching valves of 12-；
The second switching valves of 13-；14- shuttle valves.
Specific implementation mode
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned art with concrete condition
The concrete meaning of language in the present invention.
Fig. 1 is according to the first schematic diagram of the crawler crane of the utility model embodiment, and Fig. 2 is the right view of Fig. 1, figure
3 be the second schematic diagram according to the crawler crane of the utility model embodiment.
Shown in Fig. 3, the crawler crane that the utility model embodiment provides includes track beam 1, crawler belt 2, wheel
Body 3, guide part 4 and telescoping mechanism 5.
Wherein, crawler belt 2 is supported on track beam 1, can be along the circumferential movement of track beam 1.
Guide part 4 is coaxially disposed with wheel body 3, for being oriented to.Telescoping mechanism 5 include fixed part and with fixed part grafting and energy
Enough pars contractilis moved relative to fixed part, fixed part are fixedly connected with track beam 1, and pars contractilis is direct or indirect with guide part 4
Connection, pars contractilis is for driving guide part 4 to pass through wheel body tension track 2.
Wherein, the length direction of guide part 4 is consistent with the length direction of track beam 1, and guide part 4 includes along guide part 4
The front-end and back-end that length direction is oppositely arranged.Wherein, the front end of guide part 4 is coaxially disposed with wheel body 3, the rear end of guide part 4
The pars contractilis direct or indirect connection of telescoping mechanism 5.
Wherein, the telescopic direction of the pars contractilis of telescoping mechanism 5 is consistent with the length direction of track beam 1, and pars contractilis includes edge
The first end and second end that the length direction of pars contractilis is oppositely arranged, fixed part include being oppositely arranged along the length direction of fixed part
Inserted terminal and fixing end.
Wherein, the rear end direct or indirect connection of the first end of pars contractilis and guide part, the second end of pars contractilis and fixation
The inserted terminal grafting in portion and it can stretch out or bounce back relative to the inserted terminal, the fixing end of fixed part be fixedly connected with track beam 1.
In the present embodiment, telescoping mechanism 5 is preferably hydraulically extensible oil.
It, can be by the switch of manual operation control system, with the pars contractilis of timing controlled telescoping mechanism when concrete application
It is flexible.When telescoping mechanism pars contractilis stretch out fixed part when, the pars contractilis drive guide part, guide part by wheel body to crawler belt into
Row tensioner, when the pars contractilis of telescoping mechanism bounces back relative to fixed part, then the expanding force of crawler belt disappears, slack of track.It compares
In the prior art, automatic tension is carried out to crawler belt using telescoping mechanism or is loosened, since the control operation of telescoping mechanism is very convenient,
So that operation is simple for the tensioner of crawler belt, also, its expanding force is determined by the blocking force of telescoping mechanism, and tensioner displacement is by stretching
Contracting actuator travel determines, efficient, and tensioner operation is in time and reliable.
In the present embodiment, it is preferable that the rear end of guide part 4 and the first end of pars contractilis are indirectly connected with, certainly, other implementations
In example, the rear end of guide part 4 can be directly connected to the first end of pars contractilis, this is directly connected to preferably connect, to ensure
It, being capable of self-relaxation by the crawler belt of tensioner when pars contractilis bounces back relative to fixed part.
Preferably, crawler crane further includes the connector 6 being connected between pars contractilis and guide part 4, and pars contractilis passes through
Connector 6 drives guide part 4, and in other words, the rear end of guide part 4 and the first end of pars contractilis are indirectly connected with by connector 6.
Wherein, the length direction of connector 6 and the length direction of track beam are consistent, and connector 6 includes the length along connector 6
The first end and second end that degree direction is oppositely arranged, the first end of connector 6 and the first end of pars contractilis connect, connector
6 second end is fixedly connected with the rear end of guide part 4.
In the present embodiment, the second end of connector 6 is fixedly connected with the rear end of guide part 4 by bolt assembly, can be convenient for
Dismounting and repair.
In the present embodiment, crawler crane further includes hoop component 7, and fixed part is pressed on track beam 1 by hoop component 7
On.
Wherein, track beam 1 includes the level board extended along the length direction of track beam 1, and telescoping mechanism 5 is located at the level board
On, the shape of hoop component 7 is matched with the shape of fixed part, and hoop component 7 is from top to bottom fixed portion, and by fixed part pressure
Tightly on level board.
Preferably, hoop component 7 includes length direction spaced two anchor ears successively along fixed part, this two are embraced
Hoop is semicircular structure, two anchor ears it is opening down, the both ends of the opening of two anchor ears, which are fixed with level board, to be connected
It connects, fixed part is pressed in two between anchor ear and level board.
In the present embodiment, crawler crane further includes fastening assembly 8, and fixing end and the track beam 1 of fixed part pass through fastening
Component 8 connects.
Wherein, track beam 1 includes the vertical plate extended along the short transverse of track beam 1, and the fixing end of fixed part is perpendicular with this
Straight panel is oppositely arranged, and fixed part is fixedly connected with the vertical plate by fastening assembly.Wherein, which is bolt assembly.
In the present embodiment, fixed part is fixed in such a way that hoop component 7 and fastening assembly 8 combine, convenient for tearing open
While dress and repair, the fixing intensity of fixed part can be improved.Certainly, in other embodiment, on the basis for meeting intensity requirement
On, individually fixed part can be fixed using hoop component, or individually fixed part can be fixed using fastening assembly.
In the present embodiment, crawler crane includes track assembly, the track assembly include above-mentioned track beam 1, crawler belt 2,
Wheel body 3, guide part 4 and telescoping mechanism 5.Wherein, crawler crane includes two above-mentioned track assemblies, and two track assemblies edges are risen
The width direction of heavy-duty machine is oppositely arranged.
Preferably, telescoping mechanism 5 is hydraulically extensible oil, and telescoping mechanism has big chamber and small chamber；When pars contractilis and big chamber
When connection, pars contractilis driving guide part 4 passes through 3 tension track of wheel body；When pars contractilis is connect with small chamber, pars contractilis is relative to solid
Determine portion to bounce back so that crawler belt 2 relaxes.
Fig. 4 is the schematic diagram according to the control system of the utility model embodiment.
With reference to shown in Fig. 4, in the present embodiment, crawler crane further includes control system, which includes the first electricity
Magnet valve 10, second solenoid valve 11, third solenoid valve 9, reversal valve, the first switching valve 12 and the second switching valve 13 and shuttle valve 14,
The shuttle valve includes the first shuttle valve and the second shuttle valve.
Wherein, third solenoid valve 9 is connect with the first switching valve 12.
Wherein, the first solenoid valve 10 is connect simultaneously with the first shuttle valve and the second shuttle valve, second solenoid valve 11 and the first shuttle valve
It is connected simultaneously with the second shuttle valve, the first shuttle valve is connect simultaneously with reversal valve, the first switching valve 12 and the second switching valve 13, the second shuttle
Valve is connect simultaneously with reversal valve, the first switching valve 12 and the second switching valve 13, the first switching valve 12 and the second switching valve 13 and two
Two of a telescoping mechanism 5 are big, and chamber connects one to one, meanwhile, the first switching valve 12 and the second switching valve 13 and two telescopic machines
Two of structure 5 are big, and chamber connects one to one.
When third solenoid valve 9 is connected, the pilot pressure oil of control system is switched to crawler belt by the first switching valve 12 and rises
The transversal stretching oil cylinder of heavy-duty machine, with realize two track beams 1 of crane along crane width direction it is flexible；
When the first solenoid valve 10 is connected, the pilot pressure oil of control system passes through reversal valve, the first switching valve 12 and
Two switching valves 13 are individually directed two big chambers, so that two pars contractilis of two telescoping mechanisms 5 respectively drive two guide parts 4.
When second solenoid valve 11 is connected, the pilot pressure oil of control system passes through reversal valve, the first switching valve 12 and
Two switching valves 13 are individually directed two small chambers, so that two pars contractilis of two telescoping mechanisms 5 are respectively relative to two fixed parts
Retraction.
Crawler crane provided in this embodiment, when specific operation：
Telescoping mechanism is installed in track beam by the first step, makes the first end and connector of the pars contractilis of telescoping mechanism
First end connects, and so that the fixing end of the fixed part of telescoping mechanism is passed through bolt assembly with track beam and is fixedly connected, makes fixation
The intermediate region in portion is pressed on by hoop component in track beam；
Second step, control system as shown in Figure 3 connect fluid pressure line, wherein solenoid valve is controlled by lever knob；
Third walks, and starts machine, and control solenoid valve by lever knob, to provide pressure oil to telescopic oil cylinder, stretches
The pars contractilis of mechanism stretches out, and automatic tension crawler belt is to suitable position.
4th step cuts off the big chamber oil return of telescopic oil cylinder, keeps the stretching displacement of oil cylinder pars contractilis, makes pars contractilis and connect
Part forms a rigid rod, to ensure that crawler belt continues tensioner；
5th step, after prolonged use, due to being let out in telescopic oil cylinder or by greater impact, the pressure that oil cylinder is subject to is big
After big chamber locking pressure causes slack of track, repeats third and walk tension track, recycle according to this.
Crawler crane provided in this embodiment, expanding force are determined that tensioner displacement is by oil cylinder by the blocking force of oil cylinder
Stroke determines, efficient, and tensioner operation is in time and reliable, can reduce the labor intensity of operator, effectively prevent slack of track
With derailing, reduce one band of four-wheel due to being worn caused by slack of track.
The another object of the utility model embodiment, which also resides in, provides a kind of lifting unit, which includes as above
Crawler crane.
The advantageous effect of the lifting unit that the utility model embodiment provides compared with the prior art, is same as the utility model
The advantageous effect of the crawler crane that embodiment provides compared with the prior art, details are not described herein again.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all in this practicality
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (10)
1. a kind of crawler crane, which is characterized in that including track beam (1), crawler belt (2), wheel body (3), guide part (4) and stretch
Mechanism (5)；Wherein,
The crawler belt (2) is supported on the track beam (1), and the guide part (4) is coaxially disposed with the wheel body (3)；
The telescoping mechanism (5) include fixed part and with the fixed part grafting and can be stretched relative to what the fixed part moved
Contracting portion, the fixed part are connect with the track beam (1), and the pars contractilis is connect with the guide part (4), described for driving
Guide part (4) passes through crawler belt (2) described in the wheel body (3) tensioner.
2. crawler crane according to claim 1, which is characterized in that further include being connected to the pars contractilis to lead with described
To the connector (6) between part (4), the pars contractilis drives the guide part (4) by the connector (6).
3. crawler crane according to claim 2, which is characterized in that the connector (6) includes be oppositely arranged
One end and second end；
The first end is connected with the pars contractilis, and the second end is fixedly connected with the guide part (4).
4. crawler crane according to claim 1, which is characterized in that further include hoop component (7), the fixed part is logical
The hoop component (7) is crossed to be pressed on the track beam (1).
5. crawler crane according to claim 4, which is characterized in that further include fastening assembly (8)；
The fixed part includes the inserted terminal being oppositely arranged and fixing end, the pars contractilis and the inserted terminal grafting, described solid
Fixed end is connect with the track beam (1) by the fastening assembly (8).
6. crawler crane according to claim 1, which is characterized in that including track assembly, the track assembly includes
The track beam (1), the crawler belt (2), the wheel body (3), the guide part (4) and the telescoping mechanism (5)；
Including two track assemblies, two track assemblies are oppositely arranged along the width direction of the crane.
7. crawler crane according to claim 6, which is characterized in that the telescoping mechanism (5) is telescopic oil cylinder, described
Telescoping mechanism has big chamber and small chamber；
When the pars contractilis is connect with the big chamber, the pars contractilis drives the guide part (4) to rise by the wheel body (3)
The tight crawler belt (2)；When the pars contractilis is connect with the small chamber, the pars contractilis bounce back relative to the fixed part so that
Crawler belt (2) relaxation.
8. crawler crane according to claim 7, which is characterized in that further include control system；The control system packet
It includes the first solenoid valve (10) and is cut with first solenoid valve (10) while the reversal valve connecting, the first switching valve (12) and second
Change valve (13), two institutes of first switching valve (12) and second switching valve (13) and two telescoping mechanisms (5)
Big chamber is stated to connect one to one；
When first solenoid valve (10) is connected, the pilot pressure oil of the control system passes through the reversal valve, described
One switching valve (12) and second switching valve (13) are individually directed two big chambers, so that two telescoping mechanisms (5)
Two pars contractilis respectively drive two guide parts (4).
9. crawler crane according to claim 8, which is characterized in that the control system further includes second solenoid valve
(11), the reversal valve, first switching valve (12) and second switching valve (13) and meanwhile with the second solenoid valve
(11) it connects, two institutes of first switching valve (12) and second switching valve (13) and two telescoping mechanisms (5)
Small chamber is stated to connect one to one；
When the second solenoid valve (11) are connected, the pilot pressure oil of the control system passes through the reversal valve, described
One switching valve (12) and second switching valve (13) are individually directed two small chambers, so that two telescoping mechanisms (5)
Two pars contractilis be respectively relative to two fixed parts retractions.
10. a kind of lifting unit, which is characterized in that including crawler crane as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820547773.5U CN208053478U (en) | 2018-04-17 | 2018-04-17 | Crawler crane and lifting unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820547773.5U CN208053478U (en) | 2018-04-17 | 2018-04-17 | Crawler crane and lifting unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208053478U true CN208053478U (en) | 2018-11-06 |
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ID=63982420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820547773.5U Active CN208053478U (en) | 2018-04-17 | 2018-04-17 | Crawler crane and lifting unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208053478U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112281973A (en) * | 2020-11-04 | 2021-01-29 | 三一重机有限公司 | Excavator chassis and excavator |
-
2018
- 2018-04-17 CN CN201820547773.5U patent/CN208053478U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112281973A (en) * | 2020-11-04 | 2021-01-29 | 三一重机有限公司 | Excavator chassis and excavator |
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