CN206606929U - Preventer loop wheel machine lift arm - Google Patents
Preventer loop wheel machine lift arm Download PDFInfo
- Publication number
- CN206606929U CN206606929U CN201720251539.3U CN201720251539U CN206606929U CN 206606929 U CN206606929 U CN 206606929U CN 201720251539 U CN201720251539 U CN 201720251539U CN 206606929 U CN206606929 U CN 206606929U
- Authority
- CN
- China
- Prior art keywords
- guide beam
- hydraulic cylinder
- preventer
- piston rod
- limited block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Forklifts And Lifting Vehicles (AREA)
Abstract
The utility model discloses a kind of preventer loop wheel machine lift arm, it includes the first guide beam of fit together successively, second guide beam, 3rd guide beam, the top of first guide beam is arranged on the bottom of bridge crane trolley, anti- strutbeam is installed on the outside of the middle part of first guide beam, first guide beam passes through bridge crane trolley, anti- strutbeam is loaded on girder, the bottom of 3rd guide beam is connected with c-type fork, the outer wall both sides of first guide beam are symmetrically installed with hydraulic cylinder, hydraulic cylinder includes upper piston rod and lower piston rod, the upper piston rod top of hydraulic cylinder is by hinge in the bottom of bridge crane trolley, the lower piston rod top of hydraulic cylinder is by hinge on c-type fork.It is not connected in the utility model between hydraulic cylinder and guide beam, when c-type fork carries preventer, produced moment of torsion is not transferred to hydraulic cylinder, so as to avoid damaging hydraulic cylinder, the utility model compact conformation, simple to operation, it is stable, large carrying capacity.
Description
Technical field
The utility model is related to offshore rig technical field, specifically a kind of lift arm of preventer loop wheel machine.
Background technology
Preventer is the important component of oil-well rig equipment, it is necessary to a safe ready on marine drilling platform
Loop wheel machine to preventer carry out movement, install.The hydraulic cylinder welding of preventer loop wheel machine used in the self-elevating drilling platform of ocean
On the second section guide beam two of lift arm, when c-type fork carries heavy preventer group, hydraulic cylinder can produce certain moment of flexure,
This moment of flexure can have a strong impact on the action of hydraulic cylinder piston rod, so as to reduce the service life of hydraulic cylinder；Two anti-strutbeams of loop wheel machine
Lift arm both sides are arranged in alone, moment of flexure is respectively subjected to, and single anti-strutbeam bears to cause to damage when moment of flexure is excessive, influence loop wheel machine
Safe and stable operation.
Utility model content
The purpose of this utility model is to provide a kind of preventer loop wheel machine lift arm, to solve the liquid of existing loop wheel machine lift arm
The cylinder pressure moment of flexure that easy hydraulic cylinder is produced in load-carrying causes the problem of anti-strutbeam is damaged.
To solve the above problems, technical solution adopted in the utility model is：
A kind of preventer loop wheel machine lift arm, it includes fit the first guide beam together, the second guide beam, the 3rd successively
Guide beam, the top of the first guide beam is arranged on the outside of the bottom of bridge crane trolley, the middle part of the first guide beam and is provided with anti-strutbeam,
First guide beam is loaded on girder by bridge crane trolley, anti-strutbeam, and the bottom of the 3rd guide beam is connected with c-type fork, institute
The outer wall both sides for stating the first guide beam are symmetrically installed with hydraulic cylinder, and hydraulic cylinder includes upper piston rod and lower piston rod, hydraulic cylinder
Upper piston rod top is by hinge in the bottom of bridge crane trolley, and the lower piston rod top of hydraulic cylinder is by hinge in C
On type fork.
It is preferred that, the inner wall lower of first guide beam is provided with the first limited block, and the outer wall top of the second guide beam is set
There is the second limited block, when the second guide beam stretches out the inner chamber of the first guide beam, the first limited block is mutually overlapped with the second limited block,
Second limited block, which is located on the top of the first limited block, the contact surface of two limited blocks, is equipped with cushion pad.
It is preferred that, the bottom of the 3rd guide beam is provided with radially outer projection, and raised external diameter is more than second and is oriented to
The bottom external diameter of beam.
It is preferred that, the raised top is provided with supporting plate, and the top of supporting plate is provided with buffer board.
It is preferred that, two pieces of anti-strutbeams constitute " mouth " font frame structure by connecting plate.
The course of work of the present utility model is：
When c-type fork of the present utility model needs to decline, the lower piston rod of operating personnel's control hydraulic cylinder, which stretches out, promotes C
Type fork is moved downward, while the 3rd guide beam declines therewith, the second guide beam declines under gravity, when the second guiding
When the second limited block on beam outer wall is in contact with the first limited block on the first guide beam inwall, the second guide beam stops fortune
Dynamic, the 3rd guide beam continues to follow c-type fork to decline, until c-type fork reaches suitable location；
When c-type fork rises, operating personnel control hydraulic cylinder lower piston rod retraction, hydraulic cylinder drive c-type fork and
3rd guide beam is moved upwards, and the projection of the 3rd guide beam bottom is in contact with the bottom of the second guide beam, while support second
Guide beam is moved upwards, under the castering action of hydraulic cylinder, and the 3rd guide beam, the second guide beam are retracted into the first guiding together
In the inner chamber of beam.
The beneficial effects of the utility model are：
（1）Hydraulic cylinder is arranged on outside three guide beams of mutual fit by the utility model, and the cylinder body of hydraulic cylinder is with leading
It is not connected to between beam, when c-type fork carries preventer, produced moment of torsion is not transferred to hydraulic cylinder, so as to avoid to liquid
Cylinder pressure is damaged, and extends the service life of hydraulic cylinder, the utility model compact conformation, simple to operation, stable, carrying
Ability is big；
（2）" mouth " glyph framework structure that two anti-strutbeams are formed a whole by connecting plate, the structure can more have
Resist torque is imitated, strengthens the bearing capacity of equipment；
（3）By setting the first limited block and the second limited block, second can be avoided to be oriented to when hydraulic cylinder piston rod stretches out
Beam two departs from from the first guide beam；The bottom of 3rd guide beam sets radially outer projection, can be on the 3rd guide beam
The second guide beam is lifted when rising to move upwardly together；
（4）Cushion pad is set in the supporting plate of the 3rd guide beam, can avoid the second guide beam and the 3rd guide beam it
Between rigid collision.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is side view of the present utility model in Fig. 1；
Fig. 3 is sectional view of the present utility model in Fig. 2；
Fig. 4 is the partial enlarged drawing at I position in Fig. 3；
Fig. 5 is the partial enlarged drawing at II position in Fig. 1；
In figure：1st, bridge crane trolley, 2, girder, 3, hydraulic cylinder, 4, c-type fork, the 5, the 3rd guide beam, the 6, second guide beam,
7th, the first guide beam, 8, anti-strutbeam, the 9, first limited block, the 10, second limited block, 11, supporting plate, 12, raised, 13, connecting plate.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
A kind of preventer loop wheel machine lift arm as shown in Figures 1 to 5, it includes the first guide beam of fit together successively
7th, the second guide beam 6, the 3rd guide beam 5, the top of the first guide beam 7 are arranged on the bottom of bridge crane trolley 1, the first guide beam 7
Middle part on the outside of two pieces of symmetrical anti-strutbeams 8 are installed, two pieces of anti-strutbeams 8 constitute " mouth " font framework by connecting plate 13
Structure.First guide beam 7 is loaded on girder 2 by bridge crane trolley 1, anti-strutbeam 8, bottom and the c-type fork of the 3rd guide beam 5
4 are connected, and the outer wall both sides of the first guide beam 7 are symmetrically installed with hydraulic cylinder 3, and hydraulic cylinder 3 includes upper piston rod and lower piston rod,
The upper piston rod top of hydraulic cylinder 3 is by hinge in the bottom of bridge crane trolley 1, and the lower piston rod top of hydraulic cylinder 3 passes through
Hinge is on c-type fork 4.
The inner wall lower of first guide beam 7 is provided with the first limited block 9, and the outer wall top of the second guide beam 6 is provided with the second limit
Position block 10, when the second guide beam 6 stretches out the inner chamber of the first guide beam 7, the first limited block 9 is mutually overlapped with the second limited block 10,
Second limited block 10, which is located on the top of the first limited block 9, the contact surface of two limited blocks, is equipped with cushion pad.
The bottom of 3rd guide beam 5 is provided with radially outer raised 12, and the external diameter of projection 12 is more than the bottom of the second guide beam 6
Hold external diameter.The top of projection 12 is provided with supporting plate 11, and the top of supporting plate 11 is provided with buffer board.
The course of work of the present utility model is：
When c-type fork 4 needs to decline, the lower piston rod of operating personnel's control hydraulic cylinder 3 stretch out promote c-type fork 4 to
Lower motion, while the 3rd guide beam 5 declines therewith, the second guide beam 6 declines under gravity, when outside the second guide beam 6
When the second limited block 10 on wall is in contact with the first limited block 9 on the inwall of the first guide beam 7, the second guide beam 6 stops fortune
Dynamic, the 3rd guide beam 5 continues to follow c-type fork 4 to decline, until c-type fork 4 reaches suitable location；
When c-type fork 4 rises, the lower piston rod retraction of operating personnel's control hydraulic cylinder 3, hydraulic cylinder 3 drives c-type fork
4 and the 3rd motion upwards of guide beam 5, the projection 12 of the bottom of the 3rd guide beam 5 is in contact with the bottom of the second guide beam 6, simultaneously
The second motion upwards of guide beam 6 is supported, under the castering action of hydraulic cylinder 3, the 3rd guide beam 5, the second guide beam 6 bounce back together
Into in the inner chamber of the first guide beam 7.
Hydraulic cylinder is arranged on outside three guide beams of mutual fit by the utility model, the cylinder body and guide beam of hydraulic cylinder
Between be not connected to, when c-type fork carries preventer, produced moment of torsion is not transferred to hydraulic cylinder, so as to avoid to hydraulic cylinder
Damage, extend the service life of hydraulic cylinder, the utility model compact conformation, simple to operation, stable, bearing capacity
Greatly.
Claims (5)
1. a kind of preventer loop wheel machine lift arm, it includes the first guide beam of fit together successively（7）, the second guide beam（6）、
3rd guide beam（5）, the first guide beam（7）Top be arranged on bridge crane trolley（1）Bottom, the first guide beam（7）Middle part
Outside is provided with two pieces of symmetrical anti-strutbeams（8）, the first guide beam（7）Pass through bridge crane trolley（1）, anti-strutbeam（8）It is loaded
In girder（2）On, the 3rd guide beam（5）Bottom and c-type fork（4）It is connected, it is characterised in that：First guide beam
（7）Outer wall both sides be symmetrically installed with hydraulic cylinder（3）, hydraulic cylinder（3）Including upper piston rod and lower piston rod, hydraulic cylinder（3）'s
Upper piston rod top is by hinge in bridge crane trolley（1）Bottom, hydraulic cylinder（3）Lower piston rod top cut with scissors by bearing pin
It is connected on c-type fork（4）On.
2. preventer loop wheel machine lift arm according to claim 1, it is characterised in that：First guide beam（7）Inwall
Bottom is provided with the first limited block（9）, the second guide beam（6）Outer wall top be provided with the second limited block（10）, when the second guide beam
（6）Stretch out the first guide beam（7）Inner chamber when, the first limited block（9）With the second limited block（10）Mutually overlap, the second limited block
（10）Positioned at the first limited block（9）Top, be equipped with cushion pad on the contact surface of two limited blocks.
3. preventer loop wheel machine lift arm according to claim 1 or 2, it is characterised in that：3rd guide beam（5）Bottom
Portion is provided with radially outer projection（12）, it is raised（12）External diameter be more than the second guide beam（6）Bottom external diameter.
4. preventer loop wheel machine lift arm according to claim 3, it is characterised in that：The projection（12）Top be provided with
Supporting plate（11）, supporting plate（11）Top be provided with buffer board.
5. preventer loop wheel machine lift arm according to claim 4, it is characterised in that：Two pieces of anti-strutbeams（8）By even
Fishplate bar（13）Constitute " mouth " font frame structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720251539.3U CN206606929U (en) | 2017-03-15 | 2017-03-15 | Preventer loop wheel machine lift arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720251539.3U CN206606929U (en) | 2017-03-15 | 2017-03-15 | Preventer loop wheel machine lift arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206606929U true CN206606929U (en) | 2017-11-03 |
Family
ID=60166493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720251539.3U Expired - Fee Related CN206606929U (en) | 2017-03-15 | 2017-03-15 | Preventer loop wheel machine lift arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206606929U (en) |
-
2017
- 2017-03-15 CN CN201720251539.3U patent/CN206606929U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171103 Termination date: 20200315 |