CN207740018U - One kind being suitable for tunnel three step constructions trolley foldable arm rack - Google Patents
One kind being suitable for tunnel three step constructions trolley foldable arm rack Download PDFInfo
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- CN207740018U CN207740018U CN201721809365.4U CN201721809365U CN207740018U CN 207740018 U CN207740018 U CN 207740018U CN 201721809365 U CN201721809365 U CN 201721809365U CN 207740018 U CN207740018 U CN 207740018U
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- forearm
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Abstract
The utility model discloses one kind being suitable for tunnel three step constructions trolley foldable arm rack, including turntable（1）, bearing（2）, large arm（3）, middle arm（4）, forearm（6）, bearing is fixed on turntable, and large arm includes that the first bar of four-bar mechanism is hinged to bearing（31）, the second bar（32）And tripod（34）, the drive cylinder that four-bar mechanism can be made to be swung around bearing is provided on the four-bar mechanism（33）；Middle arm includes flexible outer arm（41）, telescopic oil cylinder（42）And flexible inner arm（43）, the apex angle of stretch outer arm one end and tripod is hinged, arm pitching oil cylinder during middle part is hinged（5）One end, the other end of middle arm pitching oil cylinder is articulated in the middle part of tripod；Flexible inner arm is socketed in inside flexible outer arm, and the both ends of telescopic oil cylinder are hinged with flexible inside and outside arm respectively；The point of outer end two of flexible inner arm is respectively articulated with forearm（6）With forearm pitching oil cylinder（7）The other end of one end, forearm pitching oil cylinder is hinged in the middle part of forearm.
Description
Technical field
The utility model is related to tunnel construction machinery, specifically a kind of three step construction of tunnel that is suitable for folds arm with trolley
Frame.
Background technology
In water power tunnel, subway engineering, railway tunnel, vcehicular tunnel, underground power house, military ground engineering construction, such as
Fruit country rock shakiness rule needs to set up steel arch in advance（Grille arch）, perform anchor pole, hang bar-mat reinforcement.Existing auxiliary construction trolley
What is used is all only retractable straight-arm structure as shown in Figure 1, and this structure has as a drawback that：
Even if 1, being still suspended from outside vehicle so that vehicle is long, leads to the traveling of vehicle as shown in Figure 1, after arm support recycling
Transition passability is poor.
2, straight-arm arm support cannot meet the requirement of three step constructions：As shown in Fig. 2, when vehicle is located at first step A, need pair
When third step C is constructed, construction distance is remote, and arm support stretches out length, the arm support limitation of activity above third step C；Such as Fig. 3 institutes
Show, when vehicle is constructed in second step B, arm support cannot be unfolded, cannot construct to third step C.
Utility model content
Technical problem to be solved in the utility model is, in view of the shortcomings of the prior art, offer is a kind of to meet tunnel three
Step piercing technique, and compact-sized constructing tunnel trolley arm support.
In order to solve the above technical problems, the technical solution adopted in the utility model is：One kind is applied suitable for three step of tunnel
Work trolley foldable arm rack, including turntable, bearing, large arm, middle arm, forearm, the turntable are fixed in vehicle platform, institute
Bearing is stated to be fixed on turntable, wherein
The large arm includes the first bar, the second bar, drive cylinder and tripod, and one end of the first bar and the second bar is cut with scissors respectively
It is connected to the both ends of bearing, the other end of the first bar and the second bar is respectively articulated on two angles for being fixed on tripod bottom, makes branch
Seat, the first bar, the second bar, tripod are connected to become one group of four-bar mechanism, and double leval jib can be made by being provided on the four-bar mechanism
The drive cylinder that mechanism is swung around bearing；
The middle arm includes flexible outer arm, telescopic oil cylinder and flexible inner arm, the apex angle of one end and tripod of the outer arm that stretches
Hinged, one end of the hinged middle arm pitching oil cylinder in middle part for the outer arm that stretches, the other end of middle arm pitching oil cylinder is articulated with tripod
Middle part；Flexible inner arm is socketed in inside flexible outer arm, and the both ends of telescopic oil cylinder are hinged with flexible inner arm, flexible outer arm respectively；
The outer end of flexible inner arm is set there are two hinge joint, and a hinge joint is hinged with forearm, another hinge joint and forearm
One end of pitching oil cylinder is hinged, and the other end of forearm pitching oil cylinder and the middle part of forearm are hinged；Work is arranged in the outer end of forearm
Device interface.
The four-bar mechanism to edge lengths equal composition parallelogram mechanism two-by-two.Drive cylinder will when flexible
Large arm is driven to be turned round around bearing, according to the horizontal attitude of the tripod at the top of parallelogram principle large arm during the motion its
It will not change.
One end of the drive cylinder is articulated with bearing and the hinged hinge joint of the second bar, the upper end of the other end and the first bar
It is hinged.
The lowermost end in entire arm support is arranged in the turntable, for being connected with corresponding engineering truck, and is entire arm support
Revolution action is provided.
The large arm end is provided with the middle arm that can be stretched.And middle arm is also hinged by middle arm pitching oil cylinder with large arm.
The pitching motion of arm in being realized by middle arm pitching oil cylinder.
Middle arm front end is provided with forearm, and forearm is hinged by forearm pitching oil cylinder and middle arm, can by forearm pitching oil cylinder
Realize the pitching motion of forearm.
Further, the drive cylinder of large arm four-bar mechanism described in the utility model, installation form are not limited only to this,
It can not only be provided inside four-bar mechanism, can also be arranged outside four-bar mechanism.
Further, the utility model by large arm around bearing revolution come realize arm support recycling fold, while can will in
Arm, forearm and large arm front-end architecture push to above three steps, realize normal work of the arm support on three steps.
Further, the utility model can not only meet full section of tunnel（One step）With the need of two step piercing techniques
It wants, and is made, it can be achieved that carrying out different constructions on three steps by the way that different equipment interfaces is arranged on forearm
Industry, such as arching operation, rock drilling machine operation, the operations such as aerial work platform.
Description of the drawings
Fig. 1 is that tradition is suitable for three step construction trolley foldable arm rack of tunnel withdrawal structural schematic diagram.
Fig. 2 is arm support state diagram of the conventional tunnel construction trolley when first step is constructed.
Fig. 3 is arm support state diagram of the conventional tunnel construction trolley when second step is constructed.
Fig. 4 is the retracted state installation diagram of the utility model one embodiment.
Fig. 5 is the installation diagram of the intermediate state of the utility model one embodiment.
Fig. 6 is the installation diagram of the unfolded state of the utility model one embodiment.
Fig. 7 is the unfolded state axonometric drawing of the utility model one embodiment.
Specific implementation mode
An application example of the utility model on constructing tunnel trolley is given below.
As shown in Figure 4-Figure 6, the utility model constructing tunnel trolley arm support include turntable 1, bearing 2, large arm 3, in
Arm 4, middle arm pitching oil cylinder 5, forearm 6, forearm pitching oil cylinder 7.
The lowermost end in entire arm support is arranged in turntable 1, for being connected with corresponding engineering truck, and is provided for entire arm support
Revolution acts.As shown in Fig. 7 arrows.
Bearing 2 is fixed at the top of turntable 1.
Large arm 3 includes the first bar 31, the second bar 32, drive cylinder 33 and tripod 34, wherein the first bar 31 and the second bar
32 one end is hingedly connected to 2 both ends of bearing, and the other end of the first bar 31 and the second bar 32, which is respectively articulated with, is fixed on tripod 34
On two angles of bottom, such bearing 2, the first bar 31, the second bar 32, tripod 34 are connected to become one group of four-bar mechanism, and
The equal two-by-two to edge lengths of four-bar mechanism is configured to one group of parallelogram mechanism.33 one end of drive cylinder is articulated with bearing
2 and the second hinged hinge joint of bar 32, the upper end of the other end of drive cylinder 33 and the first bar 31 is hinged.When drive cylinder 33 is stretched
Large arm 3 will be driven to be swung around bearing 2 when contracting, as shown in Fig. 7 arrows, and the horizontal attitude of tripod 34 will not change
Become.
Middle arm 4 includes flexible outer arm 41, telescopic oil cylinder 42（As shown in phantom in Figure 6）, flexible inner arm 43.Flexible outer arm 41
One end and tripod 34 apex angle it is hinged, one end of arm pitching oil cylinder 5, middle arm pitching oil during the middle part of the outer arm 41 that stretches is hinged
The other end of cylinder 5 is articulated with the middle part of tripod 34, when arm pitching oil cylinder 5 stretches in the middle, it will arm 4 is with respect to tripod in driving
34 carry out pitching movement, as shown in Fig. 7 arrows.Flexible inner arm 43 is socketed in 41 the inside of flexible outer arm, the both ends of telescopic oil cylinder 42
It is hinged with flexible inner arm 43, flexible outer arm 41 respectively.When telescopic oil cylinder 42 stretches, by driving inner arm 43 relative to flexible outer arm 41
Stretching motion is carried out, as shown in Fig. 7 arrows.
The outer end of flexible inner arm 43 is set there are two hinge, and a hinge is hinged with forearm 6, another hinge and forearm pitching
Oil cylinder 7 is hinged, and the other end of forearm pitching oil cylinder 7 is hinged with the middle part of forearm 6.When forearm pitching oil cylinder 7 stretches, will drive
6 relative telescopic inner arm 43 of dynamic forearm carries out pitching movement.As shown in Fig. 7 arrows.
When utility model works, as shown in fig. 7, being turned round around bearing 2 by large arm 3, the recycling folding of arm support can be realized
It is folded, while the front-end architecture of middle arm 4, forearm 6 and large arm 3 can be extended to above three steps.It is different by being arranged on forearm 6
Equipment interface, it can be achieved that carry out different construction operations on three steps, such as arching operation, rock drilling machine operation is high
The operations such as working platform.
It should be noted that the installation form of drive cylinder 33 in the four-bar mechanism of the utility model large arm 3 is not only
It is limited to this, for example, being disposed at also feasible outside four-bar mechanism.
Claims (3)
1. one kind being suitable for tunnel three step constructions trolley foldable arm rack, including turntable（1）, bearing（2）, large arm（3）, middle arm
（4）, forearm（6）, the turntable is fixed in vehicle platform, and the bearing is fixed on turntable, which is characterized in that
The large arm includes the first bar（31）, the second bar（32）And tripod（34）, one end of the first bar and the second bar is cut with scissors respectively
It is connected to the both ends of bearing, the other end of the first bar and the second bar is respectively articulated on two angles for being fixed on tripod bottom, makes branch
Seat, the first bar, the second bar, tripod are connected to become one group of four-bar mechanism, and double leval jib can be made by being provided on the four-bar mechanism
The drive cylinder that mechanism is swung around bearing（33）；The middle arm includes flexible outer arm（41）, telescopic oil cylinder（42）And flexible inner arm
（43）, the one end for the outer arm that stretches and the apex angle of tripod are hinged, the hinged middle arm pitching oil cylinder in middle part for the outer arm that stretches（5）One
End, the other end of middle arm pitching oil cylinder are articulated with the middle part of tripod；Flexible inner arm is socketed in inside flexible outer arm, telescopic oil cylinder
Both ends it is hinged with flexible inner arm, flexible outer arm respectively；
The outer end of flexible inner arm sets that there are two hinge joint, a hinge joint and forearms（6）Hinged, another hinge joint is bowed with forearm
Face upward oil cylinder（7）One end it is hinged, the other end of forearm pitching oil cylinder and the middle part of forearm are hinged；Work is arranged in the outer end of forearm
Device interface.
2. according to claim 1 a kind of suitable for tunnel three step constructions trolley foldable arm rack, which is characterized in that institute
State four-bar mechanism to edge lengths equal composition parallelogram mechanism two-by-two.
3. according to claim 1 a kind of suitable for tunnel three step constructions trolley foldable arm rack, which is characterized in that institute
The one end for stating drive cylinder is articulated with bearing and the hinged hinge joint of the second bar, and the upper end of the other end and the first bar is hinged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721809365.4U CN207740018U (en) | 2017-12-22 | 2017-12-22 | One kind being suitable for tunnel three step constructions trolley foldable arm rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721809365.4U CN207740018U (en) | 2017-12-22 | 2017-12-22 | One kind being suitable for tunnel three step constructions trolley foldable arm rack |
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| Publication Number | Publication Date |
|---|---|
| CN207740018U true CN207740018U (en) | 2018-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721809365.4U Active CN207740018U (en) | 2017-12-22 | 2017-12-22 | One kind being suitable for tunnel three step constructions trolley foldable arm rack |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939423A (en) * | 2017-12-22 | 2018-04-20 | 长沙科达智能装备股份有限公司 | One kind is suitable for tunnel three step constructions trolley foldable arm rack |
-
2017
- 2017-12-22 CN CN201721809365.4U patent/CN207740018U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939423A (en) * | 2017-12-22 | 2018-04-20 | 长沙科达智能装备股份有限公司 | One kind is suitable for tunnel three step constructions trolley foldable arm rack |
| CN107939423B (en) * | 2017-12-22 | 2024-06-21 | 长沙科达智能装备股份有限公司 | Be applicable to folding cantilever crane of platform truck for tunnel three-step construction |
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