CN110422777A - Telescopic arm and engineering machinery - Google Patents
Telescopic arm and engineering machinery Download PDFInfo
- Publication number
- CN110422777A CN110422777A CN201910663671.9A CN201910663671A CN110422777A CN 110422777 A CN110422777 A CN 110422777A CN 201910663671 A CN201910663671 A CN 201910663671A CN 110422777 A CN110422777 A CN 110422777A
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- China
- Prior art keywords
- hole
- connector
- shell
- flexible actuator
- pipe sleeve
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- 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.)
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Classifications
-
- 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
- B66C23/705—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic telescoped by hydraulic jacks
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The present invention provides a kind of telescopic arm and engineering machinery, are related to lifting technique field, and including shell, fixed flexible actuator inside the shell and for the connector of connected with outer casing and flexible actuator, telescopic arm further includes pipe sleeve part；The tail portion of shell offers through-hole, and the end of flexible actuator offers the threaded hole opposite with through-hole, and pipe sleeve part is arranged in through-hole, and connector is plugged in pipe sleeve part and is rotatably connected in threaded hole, and connector pushes against pipe sleeve part in flexible actuator；There is adjustment gap between pipe sleeve part and through-hole, adjustment gap can be such that pipe sleeve part moves along the vertical direction in through-hole.The not loose technical effect of connector for connecting flexible actuator and shell is reached.
Description
Technical field
The present invention relates to lifting technique fields, in particular to telescopic arm and engineering machinery.
Background technique
Currently, the flexible actuator head and a joint arm tail in autocrane single-cylinder bolt crane arm are big by four
Bolt is fixed, but due to the welding error of arm tail cylinder holder so that with the contact surface of oil cylinder head and with the contact of bolt
Face is not parallel, and bolt looseness is be easy to cause to fall problem.
Therefore it provides telescopic arm and engineering machinery that a kind of bolt will not loosen become those skilled in the art to be solved
Important technological problems.
Summary of the invention
The purpose of the present invention is to provide a kind of telescopic arm and engineering machinery, to alleviate in the prior art for flexible driving
The bolt of part head and telescopic arm is easy the technical issues of loosening.
In a first aspect, including shell, being installed in stretching in the shell the embodiment of the invention provides a kind of telescopic arm
Actuator and connector for connecting the shell Yu the flexible actuator, the telescopic arm further includes pipe sleeve part；
The tail portion of the shell offers through-hole, and the end of the flexible actuator offers the spiral shell opposite with the through-hole
Pit, the pipe sleeve part are arranged in the through-hole, and the connector is plugged in the pipe sleeve part and is rotatably connected in the threaded hole,
And the connector pushes against the pipe sleeve part in the flexible actuator；
There is adjustment gap between the pipe sleeve part and the through-hole, the adjustment gap can make the pipe sleeve part in institute
It states in through-hole and moves along the vertical direction.
With reference to first aspect, the embodiment of the invention provides a kind of possible embodiments of first aspect, wherein above-mentioned
Pipe sleeve part includes sleeve, and the connector includes linkage section and limit section, and the sleeve is sheathed on the linkage section, and the set
One end of cylinder is abutted with the flexible actuator, and the other end is abutted with the limit section.
With reference to first aspect, the embodiment of the invention provides a kind of possible embodiments of first aspect, wherein above-mentioned
Pipe sleeve part further includes adjusting washer, the adjusting washer be sheathed on the linkage section and be located at the limit section and the sleeve it
Between, wherein the sleeve abuts flexible actuator by the adjusting washer with the limit section.
With reference to first aspect, the embodiment of the invention provides a kind of possible embodiments of first aspect, wherein above-mentioned
Connector includes bolt, and the thread segment of the bolt forms the linkage section, and the nut section of the bolt forms the limit section.
With reference to first aspect, the embodiment of the invention provides a kind of possible embodiments of first aspect, wherein above-mentioned
Plain washer is provided between nut section and the adjusting washer.
With reference to first aspect, the embodiment of the invention provides a kind of possible embodiments of first aspect, wherein above-mentioned
Lock washer is provided between nut section and the plain washer.
With reference to first aspect, the embodiment of the invention provides a kind of possible embodiments of first aspect, wherein above-mentioned
The quantity of adjusting washer is multiple.
With reference to first aspect, the embodiment of the invention provides a kind of possible embodiments of first aspect, wherein above-mentioned
The quantity of through-hole is multiple, and multiple through-hole array settings are on the housing；The quantity of the threaded hole is led to described
The quantity in hole is identical, and multiple threaded holes are corresponded with multiple through-holes respectively.
With reference to first aspect, the embodiment of the invention provides a kind of possible embodiments of first aspect, wherein above-mentioned
Through-hole is waist-shaped hole, and the length direction of the waist-shaped hole extends along the vertical direction.
Second aspect, the embodiment of the invention provides a kind of telescopic arms, and including shell, stretching in the shell is arranged in
Actuator and connector for connecting the shell Yu the flexible actuator；
The tail portion of the shell offers through-hole, and the end of the flexible actuator offers opposite with the through-hole swollen
Tieholen, the connector are arranged in the through-hole and connect with swelling hole interference, and the connector is far from the flexible drive
Finite place piece is arranged in one end of moving part, and the locating part is for preventing the shell from being detached from the connector, and the locating part
Separately with the shell；
There is adjustment gap between the connector and the through-hole, the adjustment gap can make the connector in institute
It states in through-hole and moves along the vertical direction.
The third aspect, the embodiment of the invention provides a kind of engineering machinery, including the telescopic arm.
The utility model has the advantages that
The first telescopic arm provided by the invention, including shell, fixed flexible actuator inside the shell and for connecting
The connector of shell Yu flexible actuator is connect, telescopic arm further includes pipe sleeve part；The tail portion of shell offers through-hole, and stretch actuator
End offer the threaded hole opposite with through-hole, pipe sleeve part is arranged in through-hole, and connector is plugged in pipe sleeve part and is rotatably connected in
Threaded hole, and connector pushes against pipe sleeve part in flexible actuator；There is adjustment gap between pipe sleeve part and through-hole, adjusts gap
Pipe sleeve part can be made to move along the vertical direction in through-hole.
In connection, first pipe sleeve part can be set on connector, then connector is inserted into through-hole, and make to connect
Part and the threaded hole of flexible actuator end screw, and after screwing, pipe sleeve part is tightly connected on the end face of flexible actuator, pipe
External member provides pretightning force for the threaded connection of connector and flexible actuator, so that connector is self-locking on flexible actuator, even
Fitting and flexible actuator are opposing stationary, and after connector and flexible actuator screw, connector is abutted with pipe sleeve part
There are gaps between end face and the outer wall of shell；In the course of subsequent work, when warpage occurs for flexible actuator, pass through company
Adjustment gap between fitting and shell between existing gap and through-hole and pipe sleeve part, allows the connector to flexible drive
The case where moving part is swung up and down in through-hole, effectively can reduce or even avoid connector to loosen disengaging from flexible actuator
Occur.
Pipe sleeve part is first set on connector by second of telescopic arm provided by the invention in connection, then will connection
Part is inserted into through-hole, and is inserted into connector in the swelling hole of flexible actuator end, after swelling, is driven on connector far from flexible
There are gaps between the locating part meeting of moving part and the outer wall of shell；In the course of subsequent work, when flexible actuator is stuck up
Qu Shi, by the adjustment gap between gap existing between connector and shell and through-hole and pipe sleeve part, so that connector
It can be swung up and down in through-hole with flexible actuator, can efficiently reduce or even avoid connector loose from flexible actuator
Dynamic the case where being detached from.
A kind of engineering machinery provided by the invention, including telescopic arm.Engineering machinery has above-mentioned compared with prior art
Advantage, details are not described herein again.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the partial structural diagram of telescopic arm provided in an embodiment of the present invention；
Fig. 2 is the schematic diagram of flexible actuator in telescopic arm provided in an embodiment of the present invention；
Fig. 3 is the connection schematic diagram of flexible actuator and shell in telescopic arm provided in an embodiment of the present invention；
Fig. 4 is the enlarged drawing in Fig. 3 at A；
Fig. 5 is the partial schematic diagram of engineering machinery provided in an embodiment of the present invention.
Icon:
100- shell；110- through-hole；
200- stretches actuator；210- threaded hole；
300- connector；310- thread segment；320- nut section；330- plain washer；340- lock washer；
400- sleeve；500- adjusting washer.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " length ", "upper", "lower", "front", "rear", "vertical" etc.
The orientation or positional relationship of instruction is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of the description present invention and letter
Change description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation construct and
Operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
The present invention is described in further detail below by specific embodiment and in conjunction with attached drawing.
Referring to shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, present embodiments providing a kind of telescopic arm, including shell 100, it is installed in
Flexible actuator 200 in shell 100 and the connector 300 for connected with outer casing 100 and flexible actuator 200, telescopic arm
It further include pipe sleeve part；The tail portion of shell 100 offers through-hole 110, and the end of flexible actuator 200 offers and 110 phase of through-hole
Pair threaded hole 210, pipe sleeve part is arranged in through-hole 110, and connector 300 is plugged in pipe sleeve part and is rotatably connected in threaded hole 210, and
Connector 300 pushes against pipe sleeve part in flexible actuator 200；There is adjustment gap between pipe sleeve part and through-hole 110, adjusts gap
Pipe sleeve part can be made to move along the vertical direction in through-hole 110.
In connection, first pipe sleeve part is set on connector 300, then connector 300 is inserted into through-hole 110, and
Screw connector 300 and the threaded hole 210 of flexible 200 end of actuator, after screwing, pipe sleeve part is tightly connected to flexible drive
On the end face of moving part 200, pipe sleeve part provides pretightning force for the threaded connection of connector 300 and flexible actuator 200, so that connection
Part 300 is self-locking on flexible actuator 200, and connector 300 and flexible actuator 200 are opposing stationary, and connector 300 with
After flexible actuator 200 screws, there are gaps between the end face that connector 300 is abutted with pipe sleeve part and the outer wall of shell 100；In
In the subsequent course of work, when flexible actuator 200 occur warpage when, by between connector 300 and shell 100 there are between
Adjustment gap between gap and through-hole 110 and pipe sleeve part enables connector 300 with flexible actuator 200 in through-hole 110
The case where inside swinging up and down, effectively capable of reducing or even avoid connector 300 to loosen disengaging from flexible actuator 200 hair
It is raw.
Specifically, there is adjustment gap between pipe sleeve part and through-hole 110, by adjusting gap, enable pipe sleeve part edge
Vertical direction moves in through-hole 110.It is arranged pipe sleeve part outside connector 300, when on connector 300 and flexible actuator 200
When threaded hole 210 screws, pipe sleeve part can be tightly connected on flexible actuator 200 (when flexible actuator 200 by connector 300
When end face and 100 side wall of shell are not parallel, pipe sleeve part can be tilted a certain angle in through-hole 110, to make connecing for connector 300
Contacting surface is parallel with the contact surface of flexible actuator 200), pipe sleeve part can exert a force to connector 300 at this time, to connector 300 and spiral shell
Pit 210 is pre-tightened, and makes the contact surface of connector 300 parallel with the contact surface of flexible actuator 200, guarantees connection
Part 300 will not relative telescopic actuator 200 loosen.
And because connector 300 pipe sleeve part can be tightly connected on flexible actuator 200, that is, connector 300 with
There are gaps between the outer wall of shell 100.With the stretching of a wherein joint arm for telescopic arm, the center of gravity of this joint arm can be made to move forward,
It is upwarped to will lead to the tail portion of this joint arm, so that flexible actuator 200 can be raised, (arm stretched out in telescopic arm can oppress flexible
Actuator 200 upwarp the end of flexible actuator 200 also can)；Flexible actuator 200 will drive connector 300 in through-hole
It is moved up and down in 110, so that the pressure that flexible actuator 200 is subject to is released, flexible actuator 200 is avoided to suppress strength.
Wherein, the actuator 200 that stretches uses telescopic oil cylinder, to guarantee that flexible actuator 200 can drive in telescopic arm
Different joint arms are stretched.
Shown in Figure 1, in the optinal plan of the present embodiment, pipe sleeve part includes sleeve 400, and connector 300 includes connection
Section and limit section, sleeve 400 is sheathed on linkage section, and one end of sleeve 400 is abutted with flexible actuator 200, the other end and limit
Position section abuts.
Specifically, pipe sleeve part includes sleeve 400, in assembly, the linkage section on connector 300 can pass through sleeve 400 with
Threaded hole 210 on flexible actuator 200 is screwed on, and the limit section on connector 300 can be connected to 400 end of sleeve.When
When linkage section and threaded hole 210 screw, limit section can tightly oppress sleeve 400 on flexible actuator 200, sleeve at this time
400 can apply reaction force to limit section, so that being formed between the limit section linkage section connecting and threaded hole 210 biggish pre-
Clamp force guarantees the connective stability of linkage section and threaded hole 210.
Wherein, when pipe sleeve part only includes sleeve 400, the length of sleeve 400 is greater than the depth of through-hole 110, so that connection
Gap is formed between 100 outer wall of limit section and shell of part 300, so that connector 300 being capable of the movement of opposing through-bores 110.
Referring to shown in Fig. 1, Fig. 3 and Fig. 4, in the optinal plan of the present embodiment, pipe sleeve part further includes adjusting washer 500, is adjusted
Whole washer 500 be sheathed on linkage section and be located at limit section and sleeve 400 between, wherein sleeve 400 by adjusting washer 500 with
It limits section and abuts flexible actuator 200.
Specifically, pipe sleeve part further includes adjusting washer 500, by adding adjusting washer 500, it is capable of increasing connector 300
The distance between section and 100 outer wall of shell are limited, when flexible 200 stress of actuator is raised, reduces by force threshold, avoids stretching
200 stress of actuator.
Wherein, the setting of adjusting washer 500 can not only increase between sleeve 400 and limit section by adjusting washer 500
The length of pipe sleeve part, additionally it is possible to avoid limit section from causing excessive abrasion to sleeve 400, it in use for some time, can be right
Adjusting washer 500 carries out being exchanged without replacement sleeve 400, reduces production cost.
Wherein, when pipe sleeve part includes sleeve 400 and adjusting washer 500, the length of 500 the two of sleeve 400 and adjusting washer
The sum of degree is greater than the depth of through-hole 110, so as to gap be formed between 100 outer wall of the limit section of connector 300 and shell, so as to even
Fitting 300 being capable of the movement of opposing through-bores 110.
Referring to shown in Fig. 1, Fig. 3 and Fig. 4, in the optinal plan of the present embodiment, connector 300 includes bolt, the spiral shell of bolt
Line section 310 forms above-mentioned linkage section, and the nut section 320 of bolt forms above-mentioned limit section.
Specifically, connector 300 uses bolt, the thread segment 310 of bolt is the linkage section of connector 300, the spiral shell of screw thread
Cap section 320 is the limit section of connector 300.
Referring to shown in Fig. 1, Fig. 3 and Fig. 4, in the optinal plan of the present embodiment, between nut section 320 and adjusting washer 500
It is provided with plain washer 330.
Specifically, when flexible actuator 200 occurs mobile, being capable of increasing nut section 320 by setting plain washer 330
With the contact area of through-hole 110,320 pairs of through-holes 110 of nut section is avoided to damage.And it can also be increased by plain washer 330
Contact area between big nut section 320 and adjusting washer 500 avoids because pretightning force is excessive so that nut section 320 passes through tune
Whole washer 500 (i.e. adjusting washer 500 is deviate from by nut section 320).
Referring to shown in Fig. 1, Fig. 3 and Fig. 4, in the optinal plan of the present embodiment, set between nut section 320 and plain washer 330
It is equipped with lock washer 340.
Specifically, bolted pretightning force can be further increased by the setting for loosening washer.
In the optinal plan of the present embodiment, the quantity of adjusting washer 500 is multiple.
Specifically, the quantity of adjusting washer 500 can be adjusted according to the depth of through-hole 110, so that the nut of bolt
Section 320 can form gap between the outer wall of shell 100.
Referring to figure 1 and figure 2, in the optinal plan of the present embodiment, the quantity of through-hole 110 is multiple, and multiple through-holes
110 arrays are arranged on shell 100；The quantity of threaded hole 210 is identical as the quantity of through-hole 110, and multiple threaded holes 210 are distinguished
It is corresponded with multiple through-holes 110.
Specifically, array offers multiple through-holes 110 on shell 100, multiple threaded holes are offered on flexible actuator 200
210, and through-hole 110 and threaded hole 210 correspond.By multiple groups through-hole 110 and threaded hole 210 to flexible 200 He of actuator
Shell 100 is fixed, and improves the stability of connection.In the present embodiment, the rectangular array on shell 100 of through-hole 110 is arranged.
Shown in Figure 1, in the optinal plan of the present embodiment, through-hole 110 is waist-shaped hole, and the length direction edge of waist-shaped hole
Vertical direction extends.
Specifically, through-hole 110 uses waist-shaped hole, and the extending direction of waist-shaped hole is vertical direction.When telescopic arm wherein
The stretching of one joint arm can make the center of gravity of this joint arm move forward, so that the tail portion that will lead to this joint arm upwarps, so that flexible drive can be raised
Moving part 200；Because the direction of center of gravity active force is vertical direction, flexible actuator 200 to raise mode also be vertical side
To, therefore vertical direction is set by the extending direction of waist-shaped hole.
In addition, through-hole 110 can also be greater than the circular hole of thread segment 310 using aperture.
Referring to shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, present embodiments providing a kind of telescopic arm, including shell 100, setting exist
Flexible actuator 200 in shell 100 and the connector 300 for connected with outer casing 100 and flexible actuator 200；Shell 100
Tail portion offer through-hole 110, the end of flexible actuator 200 offers the swelling hole opposite with through-hole 110, connector 300
It being arranged in through-hole 110 and is connect with the interference of swelling hole, finite place piece is arranged far from one end of flexible actuator 200 in connector 300,
Locating part is for preventing shell 100 from being disconnected part 300, and locating part and shell 100 are separately；Connector 300 and through-hole 110
Between exist adjustment gap, adjustment gap connector 300 can be made to move along the vertical direction in through-hole 110.
In connection, first pipe sleeve part is set on connector 300, then connector 300 is inserted into through-hole 110, and
It is inserted into connector 300 in the swelling hole of flexible 200 end of actuator, after swelling, far from flexible actuator on connector 300
There are gaps between 200 locating part meeting and the outer wall of shell 100；In the course of subsequent work, when flexible actuator 200 is sent out
When raw warpage, by between connector 300 and shell 100 there are gap and through-hole 110 and pipe sleeve part between adjustment between
Gap enables connector 300 to swing up and down in through-hole 110 with flexible actuator 200, can efficiently reduce or even avoid
Connector 300 loosens the case where being detached from from flexible actuator 200.
It is shown in Figure 5, present embodiments provide a kind of engineering machinery, including telescopic arm.Engineering machinery and the prior art
Compared to above-mentioned advantage, details are not described herein again.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (11)
1. a kind of telescopic arm, comprising: shell (100), the flexible actuator (200) being installed in the shell (100) and use
In the connector (300) for connecting the shell (100) and the flexible actuator (200), which is characterized in that the telescopic arm is also
Including pipe sleeve part；
The tail portion of the shell (100) offers through-hole (110), the end of the flexible actuator (200) offer with it is described
The opposite threaded hole (210) of through-hole (110), the pipe sleeve part are arranged in the through-hole (110), and the connector (300) plugs
It in the pipe sleeve part and is rotatably connected in the threaded hole (210), and the connector (300) pushes against the pipe sleeve part in described
Flexible actuator (200)；
There is adjustment gap between the pipe sleeve part and the through-hole (110), the adjustment gap can make the pipe sleeve part exist
It is moved along the vertical direction in the through-hole (110).
2. telescopic arm according to claim 1, which is characterized in that the pipe sleeve part includes sleeve (400), the connector
(300) include linkage section and limit section, the sleeve (400) is sheathed on the linkage section, and one end of the sleeve (400) with
The flexible actuator (200) abuts, and the other end is abutted with the limit section.
3. telescopic arm according to claim 2, which is characterized in that the pipe sleeve part further includes adjusting washer (500), described
Adjusting washer (500) is sheathed on the linkage section and between the limit section and the sleeve (400), wherein the set
Cylinder (400) abuts flexible actuator by the adjusting washer (500) with the limit section.
4. telescopic arm according to claim 3, which is characterized in that the connector (300) includes bolt, the bolt
Thread segment (310) forms the linkage section, and the nut section (320) of the bolt forms the limit section.
5. telescopic arm according to claim 4, which is characterized in that the nut section (320) and the adjusting washer (500)
Between be provided with plain washer (330).
6. telescopic arm according to claim 5, which is characterized in that the nut section (320) and the plain washer (330) it
Between be provided with lock washer (340).
7. according to the described in any item telescopic arms of claim 3-5, which is characterized in that the quantity of the adjusting washer (500) is
It is multiple.
8. telescopic arm according to claim 1-5, which is characterized in that the quantity of the through-hole (110) is more
It is a, and the multiple through-hole (110) arrays are arranged on the shell (100)；The quantity of the threaded hole (210) is led to described
The quantity in hole (110) is identical, and multiple threaded holes (210) are corresponded with multiple through-holes (110) respectively.
9. telescopic arm according to claim 1-5, which is characterized in that the through-hole (110) is waist-shaped hole, and
The length direction of the waist-shaped hole extends along the vertical direction.
10. a kind of telescopic arm, comprising: shell (100), the flexible actuator (200) being arranged in the shell (100) and use
In the connector (300) for connecting the shell (100) and the flexible actuator (200), which is characterized in that
The tail portion of the shell (100) offers through-hole (110), the end of the flexible actuator (200) offer with it is described
The opposite swelling hole of through-hole (110), the connector (300) are arranged in the through-hole (110) and connect with swelling hole interference
It connects, finite place piece is arranged far from one end of the flexible actuator (200) in the connector (300), and the locating part is for hindering
Only the shell (100) is detached from the connector (300), and the locating part and the shell (100) are separately；
There is adjustment gap between the connector (300) and the through-hole (110), the adjustment gap can make the connection
Part (300) moves along the vertical direction in the through-hole (110).
11. a kind of engineering machinery, which is characterized in that including the described in any item telescopic arms of claim 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910663671.9A CN110422777B (en) | 2019-07-22 | 2019-07-22 | Telescopic boom and engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910663671.9A CN110422777B (en) | 2019-07-22 | 2019-07-22 | Telescopic boom and engineering machinery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110422777A true CN110422777A (en) | 2019-11-08 |
| CN110422777B CN110422777B (en) | 2021-01-08 |
Family
ID=68411795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910663671.9A Active CN110422777B (en) | 2019-07-22 | 2019-07-22 | Telescopic boom and engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110422777B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4098172A (en) * | 1975-11-12 | 1978-07-04 | Walter Kidde & Company, Inc. | Hydraulic cylinder rod end fixity connector for telescopic crane booms |
| EP0697008A1 (en) * | 1993-04-22 | 1996-02-21 | Hiab Ab | Device in extendible crane booms |
| CN203593559U (en) * | 2013-11-21 | 2014-05-14 | 徐州徐工随车起重机有限公司 | Telescopic arm floating type flanged connection structure |
| CN105179374A (en) * | 2014-11-28 | 2015-12-23 | 徐州重型机械有限公司 | Single-cylinder latch device, cylinder head assembly and crane |
| EP3075700A1 (en) * | 2015-03-31 | 2016-10-05 | Manitowoc Crane Companies, LLC | Cylinder retention system |
-
2019
- 2019-07-22 CN CN201910663671.9A patent/CN110422777B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4098172A (en) * | 1975-11-12 | 1978-07-04 | Walter Kidde & Company, Inc. | Hydraulic cylinder rod end fixity connector for telescopic crane booms |
| EP0697008A1 (en) * | 1993-04-22 | 1996-02-21 | Hiab Ab | Device in extendible crane booms |
| CN203593559U (en) * | 2013-11-21 | 2014-05-14 | 徐州徐工随车起重机有限公司 | Telescopic arm floating type flanged connection structure |
| CN105179374A (en) * | 2014-11-28 | 2015-12-23 | 徐州重型机械有限公司 | Single-cylinder latch device, cylinder head assembly and crane |
| EP3075700A1 (en) * | 2015-03-31 | 2016-10-05 | Manitowoc Crane Companies, LLC | Cylinder retention system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110422777B (en) | 2021-01-08 |
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