CN205820753U - Single-cylinder bolt type telescopic mechanism and crane - Google Patents
Single-cylinder bolt type telescopic mechanism and crane Download PDFInfo
- Publication number
- CN205820753U CN205820753U CN201620707232.5U CN201620707232U CN205820753U CN 205820753 U CN205820753 U CN 205820753U CN 201620707232 U CN201620707232 U CN 201620707232U CN 205820753 U CN205820753 U CN 205820753U
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- arm
- telescopic
- slide block
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
- B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
- B66C23/708—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic locking devices for telescopic jibs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
This utility model relates to a kind of single-cylinder bolt type telescopic mechanism and crane, wherein single-cylinder bolt type telescopic mechanism includes multistage telescopic arm and telescopic oil cylinder, telescopic arm includes arm pin, arm pin is for connecting adjacent two-stage telescopic arm, telescopic oil cylinder includes cylinder pin, cylinder pin is used for connecting telescopic oil cylinder and telescopic arm, telescopic oil cylinder is for extracting so that telescopic arm can freely stretch and drives telescopic arm stretch out or retract after cylinder pin insertion telescopic arm at arm pin, single-cylinder bolt type telescopic mechanism also includes switching mechanism, switching mechanism can move along the telescopic direction of telescopic arm, insert or pull out with driving cylinder pin and/or arm pin.The direction that driving cylinder pin or arm pin insert or pull out, by arranging switching mechanism, is switched to the direction identical with the telescopic direction of telescopic arm by this utility model, can overcome the interior problem limited along the space of cylinder pin or the arm pin direction of motion of telescopic arm.
Description
Technical field
This utility model relates to technical field of engineering machinery, particularly relates to a kind of single-cylinder bolt type telescopic mechanism and lifting
Machine.
Background technology
Hoister in large tonnage is for realizing hoisting arm expansion, and general employing single-cylinder bolt structure, this structure can reducing mechanism set
Putting, room for promotion utilization rate, advantage is fairly obvious.
In existing single cylinder bolt system, main actions is to insert cylinder pin, pull out the flexible of arm pin and telescopic oil cylinder.Such as Fig. 1 institute
Showing, one end of cylinder barrel 105 is provided with cylinder head 101, after the cylinder pin 102 of cylinder head 101 inserts the cylinder pin-and-hole of telescopic arm, and cylinder head 101
Arm pin 103 is pulled up from arm pin-and-hole 104, and the action of cylinder pin 102 stretching out or retracting control by telescopic oil cylinder, by cylinder pin
The effect of 102 can drive stretching out or retracting of telescopic arm.
Cylinder head 101 is integrated with slotting cylinder pin and pulls out the function of arm pin, is the important component part of single cylinder bolt-type telescopic oil cylinder,
It is to realize cylinder pin and the vitals of arm pin plug.
As in figure 2 it is shown, its cylinder head body 108 uses the mode of overall forging and stamping, holed on forging by Digit Control Machine Tool, flour milling
Processing Deng machining operation, other parts are all assemblied on cylinder head body 108, form single-cylinder bolt cylinder head.This kind of single cylinder
Cylinder pin inserted by latch cylinder head and the action pulling out arm pin is all by being integrated in the realization of the hydraulic coupling of the hydraulic jack in cylinder head body 108
's.This single-cylinder bolt cylinder head is made up of four cylinder pins 102, and each cylinder pin 102 is retracted by the driving of two pistons 106, and one
Reset under the effect of individual cylinder pin back-moving spring 107 ejection.When the loculus oil-feed of driving cylinder pin oil cylinder, cylinder pin 102 is at oil cylinder
Under effect, retract；When the loculus of the oil cylinder of driving cylinder pin does not has oil, cylinder pin 102 under spring force, resets and ejects.
As it is shown on figure 3, dovetail groove 109 pull arm pin 103 under two drivings driving oil cylinder 110, complete to pull out arm pin
Action, and reset under the driving of two groups of springs 113.Wherein, dovetail groove 109 passes through nut with the piston rod driving oil cylinder 110
111 and pad 112 connect, spring 113 is arranged in the spring base 115 with fairlead 114.When the loculus driving oil cylinder 110
Compression spring 113 during oil-feed simultaneously, dovetail groove 109 is fallen；When the loculus driving oil cylinder 110 does not has oil, at bilateral bullet
Under the effect of spring force, dovetail groove 109 is upspring reset.
Above-mentioned single cylinder bolt system at least there is problems in that
1, manufacturing cost is high: owing to the manufacture of cylinder head body needs entirety forging and stamping, forms blank, is then passed through on forging
Carry out holing, polish, the technique such as heat treatment, inside needs to install multiple oil cylinder, for ensureing quality of fit and surface roughness, processing
Dimensional requirement is higher, and processing cost is substantially increased.
2, cylinder head weight is big: owing to cylinder head body belongs to overall forging and stamping, then carry out the mechanical processing techniques such as boring on cylinder head body,
Causing redundancy metal on cylinder head body more, weight is the biggest.
3, dovetail groove is the most stuck: because two driving oil cylinders in forging cylinder head body simultaneously drive dovetail groove, dovetail groove and two
Need to closely cooperate between individual driving oil cylinder, when driving oil cylinder to occur asynchronous for two, be easily caused dovetail groove motion stuck, arm
Pin can not pull down, and then causes semi-girder to stretch.
4, spring design is limited: owing to the size of cylinder head body is limited by arm minor details arm space, cause dovetail groove spring
Design with cylinder pin spring is limited by space, it is difficult to meet corresponding mechanical requirements and life requirements.
5, oil cylinder form constrained is driven: due to cylinder pin and the restriction of the driving direction of dovetail groove, add upper boom portion minor details arm
Space limits, and drives oil cylinder cannot use the oil cylinder of canonical form, can only use by slide block and major axis combine non-standard
Oil cylinder replaces.
It should be noted that the information being disclosed in background of invention part is merely intended to increase overall to the present invention
The understanding of background, and be not construed as recognizing or imply in any form this information structure by those skilled in the art public affairs
The prior art known.
Utility model content
The purpose of this utility model is to propose a kind of single-cylinder bolt type telescopic mechanism and crane, to solve prior art
Problem that in single cylinder bolt system, the space of mechanism of driving cylinder pin and the motion of arm pin is limited and owing to this problem is drawn
The other problems risen.
For achieving the above object, this utility model provides a kind of single-cylinder bolt type telescopic mechanism, including multistage telescopic arm
And telescopic oil cylinder, described telescopic arm includes arm pin, and described arm pin is for connecting telescopic arm described in adjacent two-stage, described flexible oil
Cylinder includes that cylinder pin, described cylinder pin are used for connecting described telescopic oil cylinder and described telescopic arm, and described telescopic oil cylinder is at described arm
Pin is extracted so that described telescopic arm can freely stretch and drives described telescopic arm after the described cylinder pin described telescopic arm of insertion
Stretching out or retract, described single-cylinder bolt type telescopic mechanism also includes switching mechanism, and described switching mechanism can be along described telescopic arm
Telescopic direction move, to drive described cylinder pin and/or described arm pin to insert or pull out.
Further, described switching mechanism is for driving slide block, and described driving slide block is provided with and inclines relative to described telescopic direction
Oblique skewed slot, described skewed slot enables to the direction of motion of described cylinder pin and/or described arm pin and the movement of described driving slide block
Direction is mutually perpendicular to.
Further, described driving slide block includes that cylinder pin drives slide block and dovetail groove to drive slide block, described single cylinder bolt-type
Telescoping mechanism also includes that oat tail groove structure, described oat tail groove structure are used for driving described arm pin to insert or pull out, and described cylinder pin drives
Movable slider is used for driving described cylinder pin to insert or pull out, and described dovetail groove drives slide block to be used for driving described oat tail groove structure to transport
Dynamic.
Further, described cylinder pin includes at least two, and described cylinder pin drives slide block to be provided with at least two skewed slot, at least two
Individual described cylinder pin is connected with at least two bearing pin respectively, and bearing pin described at least two inserts in skewed slot described at least two respectively,
To drive described cylinder pin to insert or pull out when described cylinder pin drives slide block to move by described bearing pin.
Further, described at least two, skewed slot is symmetrical arranged, to realize at least two by skewed slot described at least two
The synchronization of described cylinder pin inserts or pull out.
Further, described cylinder pin drives slide block and described dovetail groove to drive slide block to share a drive mechanism.
Further, described cylinder pin drives slide block and described dovetail groove to drive slide block to share a resetting-mechanism.
Further, described drive mechanism is the driving oil cylinder of double-acting type, and the two ends of described driving oil cylinder connect respectively
Cylinder pin pull bar and arm pin pull bar, described cylinder pin pull bar and described arm pin pull bar are respectively used to drive described cylinder pin to drive slide block and institute
Stating dovetail groove drives slide block to move, and described resetting-mechanism includes back-moving spring, described multiple for make described cylinder pin pull bar reset
Position spring and the described back-moving spring for making described arm pin pull bar reset are integrated in same spring mounting seat.
Further, described telescopic oil cylinder includes that cylinder head body and piston rod, described switching mechanism are arranged on described cylinder head body
On, described cylinder head body is the case structure being formed and being provided with hollow structure by board, and described cylinder head body is by described hollow
Structure is set on described piston rod.
For achieving the above object, this utility model additionally provides a kind of crane, stretches including above-mentioned single cylinder bolt-type
Mechanism.
Based on technique scheme, driving cylinder pin or arm pin, by arranging switching mechanism, are inserted or pull out by this utility model
The direction gone out switches to the direction identical with the telescopic direction of telescopic arm, and switching mechanism moves along telescopic direction, and can drive
Cylinder pin or arm pin move along its direction inserted or pull out.The direction switching that switching mechanism is realized, in can overcoming telescopic arm
Along the problem that the space of cylinder pin or the arm pin direction of motion is limited, it is also possible to solve to be brought due to above-mentioned space constraints
Other problems.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by of the present utility model, constitutes the part of the application,
Schematic description and description of the present utility model is used for explaining this utility model, is not intended that of the present utility model improper
Limit.In the accompanying drawings:
Fig. 1 is the schematic diagram of single cylinder bolt system in prior art.
Fig. 2 is the structural representation of single-cylinder bolt cylinder head in prior art.
Fig. 3 is the structural representation of dovetail groove oil cylinder in prior art.
Fig. 4 is the structural representation of cylinder head body in one embodiment of this utility model single-cylinder bolt type telescopic mechanism.
Fig. 5 is the structural representation that in one embodiment of this utility model single-cylinder bolt type telescopic mechanism, cylinder pin drives slide block
Figure.
Fig. 6 is the structural representation of one embodiment of this utility model single-cylinder bolt type telescopic mechanism.
Fig. 7 is the top view of Fig. 6 embodiment.
Fig. 8 is the schematic diagram that in one embodiment of this utility model single-cylinder bolt type telescopic mechanism, cylinder pin drives slide block.
In figure: 101-cylinder head, 102-cylinder pin, 103-arm pin, 104-arm pin-and-hole, 105-cylinder barrel, 106-piston, 107-cylinder pin
Back-moving spring, 108-cylinder head body, 109-dovetail groove, 110-drives oil cylinder, 111-nut, 112-pad, 113-spring, and 114-leads
To set, 115-spring base；
1-bearing pin, 2-cylinder pin, 3-cylinder pin drives slide block, 4-oat tail groove structure, 5-cylinder head body, cylinder pin cylinder under 6-, 7-upper cylinder half
Pin cylinder, 8-skewed slot, 9-drives oil cylinder, 10-cylinder pin pull bar, and 11-dovetail groove drives slide block, 12-slide block, 13-drive rod, 14-arm
Pin pull bar, 15-back-moving spring.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in embodiment is carried out clear, complete
Ground describes.Obviously, described embodiment is only a part of embodiment of the present utility model rather than whole embodiments.
Based on embodiment of the present utility model, the institute that those of ordinary skill in the art are obtained under not making creative work premise
There are other embodiments, broadly fall into the scope of this utility model protection.
In description of the present utility model, it is to be understood that term " " center ", " laterally ", " longitudinally ", "front", "rear",
"left", "right", " on ", D score, " vertically ", " level ", " top ", " end ", " interior ", the orientation of the instruction such as " outward " or position relationship be
Based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description rather than instruction
Hint indication device or element must have specific orientation, with specific azimuth configuration and operation, be not understood that
For the restriction to this utility model protection domain.
As shown in figures 4-6, in an embodiment of the single-cylinder bolt type telescopic mechanism proposed at this utility model, single
Cylinder bolt-type telescoping mechanism includes that multistage telescopic arm and telescopic oil cylinder, described telescopic arm include arm pin, be similar to as shown in Figure 1
Structure, is provided with arm pin outside the arm tail of every one-level telescopic arm, the inner side of simultaneous retractable arm is provided with multiple arm pin-and-hole, and arm pin-and-hole is used for
Insertion arm pin, when in adjacent two-stage telescopic arm, arm pin-and-hole aligns with arm pin, arm pin stretches out and gets final product in insertion arm pin-and-hole, with reality
Show the connection of two-stage telescopic arm and fix.After arm pin insertion arm pin-and-hole, telescopic arm cannot occur expanding-contracting action, when telescopic arm needs
When carrying out flexible, need from arm pin-and-hole, extract arm pin.
Described telescopic oil cylinder includes that cylinder pin 2, described cylinder pin 2 are used for connecting described telescopic oil cylinder and described telescopic arm, described
Telescopic oil cylinder is for extracting so that described telescopic arm can freely stretch and described cylinder pin 2 inserts described flexible at described arm pin
Described telescopic arm is driven to stretch out or retract after arm.That is, when cylinder pin-and-hole pair set on cylinder pin 2 with wherein certain one-level telescopic arm
Qi Shi, cylinder pin 2 stretches out and i.e. can be inserted in cylinder pin-and-hole, and now, telescopic oil cylinder is connected by cylinder pin 2 with this grade of telescopic arm, telescopic oil cylinder
This grade of telescopic arm can be driven to carry out expanding-contracting action.
Described single-cylinder bolt type telescopic mechanism also includes switching mechanism, and described switching mechanism can stretching along described telescopic arm
Contracting direction is moved, to drive described cylinder pin 2 and/or described arm pin to insert or pull out.By arranging switching mechanism, by driving cylinder pin
Or the direction that arm pin inserts or pull out switches to the direction identical with the telescopic direction of telescopic arm, switching mechanism moves along telescopic direction
Dynamic, and can driving cylinder pin or arm pin move along its direction inserted or pull out.This telescopic direction is that telescopic arm stretches out or retracts
Direction, the switching of direction that switching mechanism is realized, can overcome in telescopic arm along cylinder pin or the sky that moves of the arm pin direction of motion
Between limited problem, it is also possible to solve the other problems brought due to above-mentioned space constraints.
As one preferred embodiment of switching mechanism, as it is shown in figure 5, described switching mechanism for drive slide block, described in drive
Movable slider is provided with the skewed slot 8 tilted relative to described telescopic direction, and wherein the direction shown in the arrow in Fig. 5 is telescopic arm
Telescopic direction, described skewed slot 8 enables to the direction of motion of described cylinder pin 2 and/or described arm pin and the shifting of described driving slide block
Dynamic direction is mutually perpendicular to.
Drive slide block action principle as shown in Figure 8, as shown in Figure 8, slide block 12 under the effect of power F1 to the right (with diagram
Direction is reference direction) displacement is L, on slide block 12 under the effect of skewed slot, drive rod 13 moves up distance for H, drives
The amount of force that lever 13 is subject to is F2, then have F2=F1 (L/H), F2 to F1, L are directly proportional.For realizing drive rod 13 upper
Lower section distance H upwards, and the installing space of equidirectional is extremely limited, then can be by the method for inclined plane force increasing, it is achieved drive
The installation direction of lever 13 changes 90 °, meets function and the requirement of space layout simultaneously.
Relating to cylinder pin and the motion of arm pin in single-cylinder bolt type telescopic mechanism, the version of above-mentioned driving slide block can be single
Solely it is applied to the motion of cylinder pin, it is also possible to be applied individually to any the motion of arm pin, it is also possible to apply simultaneously to cylinder pin and the fortune of arm pin
Dynamic.
In a preferred embodiment, described driving slide block includes that cylinder pin drives slide block 3 and dovetail groove to drive slide block 11,
Described single-cylinder bolt type telescopic mechanism also include oat tail groove structure 4, described oat tail groove structure 4 be used for driving described arm pin to insert or
Extract, when oat tail groove structure 4 moves to the position at arm pin place, can be by arm pin card in its dovetail groove, by dovetail groove
Motion pull arm pin moves.Described cylinder pin drives slide block 3 to be used for driving described cylinder pin 2 to insert or pull out, and described dovetail groove drives
Slide block 11 is used for driving described oat tail groove structure 4 to move.
As shown in Figure 4 and Figure 6, dovetail groove drives slide block 11 to be arranged on cylinder pin and drives the top of slide block 3, when cylinder pin drives sliding
When block about 3 (with direction as shown as reference direction) is mobile, can stretch out along the direction being perpendicular to paper with driving cylinder pin 2 or contract
Return, to realize inserting or pull out the purpose of cylinder pin-and-hole.When dovetail groove drives slide block 11 to move left and right, oat tail groove structure can be driven
4 move up and down, and insert or pull out with pull arm pin.
In another preferred embodiment of this utility model, described cylinder pin 2 includes at least two, and described cylinder pin drives sliding
Block 3 is provided with at least two skewed slot 8, and described at least two, cylinder pin 2 is connected with at least two bearing pin 1 respectively, sells described at least two
Axle 1 inserts in skewed slot 8 described at least two respectively, to drive slide block 3 to drive institute by described bearing pin 1 when moving at described cylinder pin
State cylinder pin 2 to insert or pull out.
As shown in Figure 4, cylinder pin 2 includes four, as it is shown in figure 5, cylinder pin drives slide block 3 to be provided with two skewed slots 8, each two
Cylinder pin 2 is connected on same bearing pin 1, and the end of bearing pin 1 is inserted in one of in skewed slot 8, when cylinder pin drives slide block 3 to move
Time, skewed slot 8 drives bearing pin 1 to move, and bearing pin 1 drives cylinder pin 2 stretch out or retract.Two cylinder pins 2 are connected on same bearing pin 1,
May insure that the synchronicity of the two cylinder pin 2 expanding-contracting action.Wherein, the motion of bearing pin 1 can be driven slide block 3 by being arranged on cylinder pin
The bearing pin track of both sides guides.
Further, described at least two, skewed slot 8 is symmetrical arranged, to realize at least two by skewed slot described at least two 8
The synchronization of individual described cylinder pin 2 inserts or pull out.As it is shown in figure 5, two skewed slots 8 drive the vertical centrage of slide block 3 about cylinder pin
Symmetry, the motion in two skewed slots 8 of such two bearing pins 1 can realize synchronizing, thus realize the motion of at least four cylinder pin 2
Synchronicity.
As a preferred embodiment of the present utility model, described cylinder pin drives slide block 3 and described dovetail groove to drive slide block
11 share a drive mechanism.Such as Fig. 2 and Fig. 3 it can be seen that the stretching of cylinder pin in single-cylinder bolt telescopic system of the prior art
Contracting action at least needs four oil cylinders, and the expanding-contracting action of arm pin at least needs two oil cylinders, and oil cylinder number can cause single cylinder too much
The overall weight of latch telescopic system is too big, is unfavorable for meeting the weight standard of crane.In the present embodiment, cylinder pin drives slide block
3 and dovetail groove drive slide block 11 share a drive mechanism, the use number of drive mechanism can be greatly reduced, the most not only may be used
To bring the reduction of cost, it is also possible to significantly reduce the overall weight of single-cylinder bolt type telescopic mechanism.
Further preferred as above preferred embodiment of the present utility model, described cylinder pin drives slide block 3 and described swallow
Stern notch drives slide block 11 can also share a resetting-mechanism.Sharing of resetting-mechanism can also save installing space, reduces whole
Body weight, reduces input cost, it is also possible to improve the reliability of switching mechanism operation.
As above-mentioned drive mechanism and a specific embodiment of resetting-mechanism, described drive mechanism is double-acting type
Driving oil cylinder 9, the two ends of described driving oil cylinder 9 connect cylinder pin pull bar 10 and arm pin pull bar 14, described cylinder pin pull bar 10 He respectively
Described arm pin pull bar 14 is respectively used to drive described cylinder pin to drive slide block 3 and described dovetail groove to drive slide block 11 to move, such as Fig. 7 institute
Showing, described resetting-mechanism includes back-moving spring 15, for make described back-moving spring 15 that described cylinder pin pull bar 10 resets and for
The described back-moving spring 15 making described arm pin pull bar 14 reset is integrated in same spring mounting seat, is so possible not only to reduce
The space that resetting-mechanism takies, it is also possible to improve operating reliability.
Certainly, the detailed description of the invention of drive mechanism and resetting-mechanism is not limited to one of the above, it is also possible to use other
Distressed structure, acts on as long as being capable of it.Such as, back-moving spring 15 can arrange one, cylinder pin pull bar 10 and arm pin
Pull bar 14 is all connected with this back-moving spring 15, and when cylinder pin pull bar 10 or arm pin pull bar 14 stretch out, this back-moving spring 15 all can rise
To reset response, the minimizing of back-moving spring 15 number can alleviate overall weight.
In the above-described embodiments, drive oil cylinder 9 can use standard oil cylinder, and set voluntarily without limited in space
Meter, so can reduce weight, cost-effective.
As a specific embodiment of telescopic oil cylinder in this utility model, described telescopic oil cylinder includes cylinder head body 5 and lives
Stopper rod, described switching mechanism is arranged on described cylinder head body 5, and described cylinder head body 5 for being formed and be provided with hollow knot by board
The case structure of structure, described cylinder head body 5 is set on described piston rod by described hollow structure.
Specifically, cylinder head body 5 can use steel plate to spell means of spot welds and form, and cylinder head body 5 is the case formed by machining
Body structure, is formed by entirety forging and stamping compared to cylinder head body in prior art, can reduce the weight of cylinder head body, simultaneously because subtract
Lack operation and the required precision of cylinder head body, reduce manufacturing cost.
Single-cylinder bolt type telescopic mechanism in the various embodiments described above can apply on all kinds of crane, to control crane
The expanding-contracting action of upper telescopic arm.The good effect that in the various embodiments described above, single-cylinder bolt type telescopic mechanism is had is equally applicable to
Crane, repeats no more here.
Below to this utility model single-cylinder bolt type telescopic mechanism and the concrete structure of an embodiment of crane and work
Illustrate as process:
As shown in figs. 4-7, this single-cylinder bolt type telescopic mechanism includes four cylinder pin single-cylinder bolt cylinder head bodies 5, this cylinder head
Body 5 is provided with bearing pin 1, cylinder pin 2, cylinder pin driving slide block 3, oat tail groove structure 4 and dovetail groove and drives slide block 11.Each bearing pin 1 is same
Time connect the left and right sides two cylinder pins 2.Cylinder pin cylinder includes upper cylinder half pin cylinder 7 and lower cylinder pin cylinder 6, and cylinder pin drives slide block 3 to be arranged on
Near the position of upper cylinder half pin cylinder 7, cylinder pin drives slide block 3 horizontal positioned, and the bearing of trend of its skewed slot 8 is identical with telescopic direction, cylinder
Pin drives the slide block 3 telescopic direction along telescopic arm under the push-and-pull action power driving oil cylinder 9 to move, and cylinder pin drives the fortune of slide block 3
Moving makes bearing pin 1 move along the direction vertical with telescopic direction, and the motion of bearing pin 1 drives extending and retracting of cylinder pin 2.
As shown in Figure 6, dovetail groove drives slide block 11 vertically to place, and the bearing of trend of its skewed slot is vertical direction, dovetail groove
Drive the slide block 11 telescopic direction along telescopic arm under the push-and-pull action driving oil cylinder 9 to move, drive oat tail groove structure about 4 to transport
It is dynamic, so that arm pin inserts or pull out.
Specifically, as it is shown in fig. 7, when drive oil cylinder 9 piston to left movement time, promote cylinder pin pull bar 10 to left movement,
And compression reseting spring 15, cylinder pin pull bar 10 promotes cylinder pin to drive slide block 3 to left movement, thus realizes the retraction of cylinder pin 2.
When the piston driving oil cylinder 9 moves right, pull arm pin pull bar 14 moves right, and compression reseting spring 15,
Arm pin pull bar 14 pulls dovetail groove to drive slide block 11 to move right, thus realizes the motion of leaving behind of arm pin.
Explanation by the multiple embodiments to this utility model single-cylinder bolt type telescopic mechanism and crane, it can be seen that
This utility model single-cylinder bolt type telescopic mechanism and crane embodiment at least have an one or more of advantage:
(1) cylinder head body uses steel plate to spell body structure rather than the solid forging molding of means of spot welds, reduces cylinder head
The weight of body, simplifies the manufacturing procedure of cylinder head body, reduces the required precision of processing, reduces manufacturing cost.
(2) using inclined plane force increasing formula operation principle, switching mechanism makes the direction of motion folder in 90 ° of drive mechanism and cylinder pin
Angle, it is achieved that the transformation of the direction of motion, for driving the assembling of oil cylinder and cylinder pin, arm pin to add arrangement space, improves minor details and stretches
The utilization rate of contracting arm inner space.
(3) cylinder pin drives skewed slot on slide block to be symmetrical arranged, and when slide block movement, bilateral bearing pin is synchronized with the movement, and can realize many
The synchronization plug of individual cylinder pin.
(4) cylinder arm pin motion common drive oil cylinder and spring, reduces and drives oil cylinder and the quantity of spring, improves motion reliable
Property.
Finally should be noted that: it is only limited by above example in order to the technical solution of the utility model to be described
System；Although being described in detail this utility model with reference to preferred embodiment, those of ordinary skill in the field should
Understand: still detailed description of the invention of the present utility model can be modified or portion of techniques feature is carried out equivalent and replace
Change；Without deviating from the spirit of technical solutions of the utility model, it all should contain the technical scheme being claimed at this utility model
In the middle of scope.
Claims (10)
1. a single-cylinder bolt type telescopic mechanism, it is characterised in that include multistage telescopic arm and telescopic oil cylinder, described telescopic arm bag
Including arm pin, described arm pin is for connecting telescopic arm described in adjacent two-stage, and described telescopic oil cylinder includes cylinder pin (2), described cylinder pin
(2) be used for connecting described telescopic oil cylinder and described telescopic arm, described telescopic oil cylinder for described arm pin extract so that described in stretch
Contracting arm can freely stretch and described cylinder pin (2) insert described telescopic arm after drive described telescopic arm stretch out or retract, institute
Stating single-cylinder bolt type telescopic mechanism and also include switching mechanism, described switching mechanism can move along the telescopic direction of described telescopic arm
Dynamic, to drive described cylinder pin (2) and/or described arm pin to insert or pull out.
Single-cylinder bolt type telescopic mechanism the most according to claim 1, it is characterised in that described switching mechanism is sliding for driving
Block, described driving slide block is provided with the skewed slot (8) tilted relative to described telescopic direction, and described skewed slot (8) enables to described cylinder
Pin (2) and/or the direction of motion of described arm pin are mutually perpendicular to the moving direction of described driving slide block.
Single-cylinder bolt type telescopic mechanism the most according to claim 2, it is characterised in that described driving slide block includes that cylinder pin drives
Movable slider (3) and dovetail groove drive slide block (11), and described single-cylinder bolt type telescopic mechanism also includes oat tail groove structure (4), described
Oat tail groove structure (4) is used for driving described arm pin to insert or pull out, and described cylinder pin drives slide block (3) to be used for driving described cylinder pin
(2) inserting or pull out, described dovetail groove drives slide block (11) to be used for driving described oat tail groove structure (4) to move.
Single-cylinder bolt type telescopic mechanism the most according to claim 3, it is characterised in that described cylinder pin (2) includes at least two
Individual, described cylinder pin drive slide block (3) be provided with at least two skewed slot (8), cylinder pin (2) described at least two respectively with at least two pin
Axle (1) connects, and bearing pin (1) described at least two inserts in skewed slot (8) described at least two respectively, sliding to drive at described cylinder pin
Described cylinder pin (2) is driven to insert or pull out by described bearing pin (1) when block (3) is mobile.
Single-cylinder bolt type telescopic mechanism the most according to claim 4, it is characterised in that skewed slot described at least two (8) is right
Claim to arrange, insert or pull out realizing the synchronization of cylinder pin (2) described at least two by skewed slot described at least two (8).
Single-cylinder bolt type telescopic mechanism the most according to claim 3, it is characterised in that described cylinder pin drive slide block (3) and
Described dovetail groove drives slide block (11) to share a drive mechanism.
Single-cylinder bolt type telescopic mechanism the most according to claim 6, it is characterised in that described cylinder pin drive slide block (3) and
Described dovetail groove drives slide block (11) to share a resetting-mechanism.
Single-cylinder bolt type telescopic mechanism the most according to claim 7, it is characterised in that described drive mechanism is double-acting type
Driving oil cylinder (9), the two ends of described driving oil cylinder (9) connect cylinder pin pull bar (10) and arm pin pull bar (14), described cylinder respectively
It is sliding that pin pull bar (10) and described arm pin pull bar (14) are respectively used to drive described cylinder pin to drive slide block (3) and described dovetail groove to drive
Block (11) is mobile, and described resetting-mechanism includes back-moving spring (15), is used for the described reset making described cylinder pin pull bar (10) reset
Spring (15) and the described back-moving spring (15) being used for making described arm pin pull bar (14) reset are integrated in same spring mounting seat
In.
Single-cylinder bolt type telescopic mechanism the most according to claim 1, it is characterised in that described telescopic oil cylinder includes cylinder head body
And piston rod (5), described switching mechanism is arranged on described cylinder head body (5), described cylinder head body (5) for being formed by board and
Being provided with the case structure of hollow structure, described cylinder head body (5) is set on described piston rod by described hollow structure.
10. a crane, it is characterised in that include the single cylinder bolt-type telescopic machine as described in any one of claim 1～9
Structure.
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| CN201620707232.5U CN205820753U (en) | 2016-07-06 | 2016-07-06 | Single-cylinder bolt type telescopic mechanism and crane |
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| CN201620707232.5U CN205820753U (en) | 2016-07-06 | 2016-07-06 | Single-cylinder bolt type telescopic mechanism and crane |
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| CN205820753U true CN205820753U (en) | 2016-12-21 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111683892A (en) * | 2018-02-16 | 2020-09-18 | 株式会社多田野 | Crane with a movable crane |
| CN113896121A (en) * | 2021-10-08 | 2022-01-07 | 徐州重型机械有限公司 | Crane bolt type telescopic system and crane |
-
2016
- 2016-07-06 CN CN201620707232.5U patent/CN205820753U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111683892A (en) * | 2018-02-16 | 2020-09-18 | 株式会社多田野 | Crane with a movable crane |
| CN113896121A (en) * | 2021-10-08 | 2022-01-07 | 徐州重型机械有限公司 | Crane bolt type telescopic system and crane |
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