CN106761853B - Clamp mechanism and arch trolley for arch trolley - Google Patents
Clamp mechanism and arch trolley for arch trolley Download PDFInfo
- Publication number
- CN106761853B CN106761853B CN201710014250.4A CN201710014250A CN106761853B CN 106761853 B CN106761853 B CN 106761853B CN 201710014250 A CN201710014250 A CN 201710014250A CN 106761853 B CN106761853 B CN 106761853B
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- Prior art keywords
- arch
- trolley
- clamp mechanism
- working arm
- fixing piece
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/40—Devices or apparatus specially adapted for handling or placing units of linings or supporting units for tunnels or galleries
Abstract
This disclosure relates to a kind of clamp mechanism and arch trolley for arch trolley.The clamp mechanism (4) is set to the end of the working arm of the arch trolley, the clamp mechanism (4) includes binding clip and first driving device (43), the binding clip includes fixing piece (41) and movable part (42), the first driving device (43) is provided for that the movable part (42) is driven to move towards or away from the fixing piece (41), to realize clamping or release to arch section (91), wherein, one of the fixing piece (41) and the movable part (42) are provided with limit clamping plate (411), another one is provided with opening towards the limit card slot (421) of limit clamping plate (411), limit clamping plate (411) and limit card slot (421) are provided for limiting movement of the clamped arch section (91) relative to the binding clip.Through the above technical solutions, the clamp mechanism that the disclosure provides can clamp the arch section with different sizes and structure.
Description
Technical field
This disclosure relates to engineering machinery field, and in particular, to a kind of clamp mechanism and arch platform for arch trolley
Vehicle.
Background technique
In the cutting in each tunnel, the length direction along tunnel is needed to set up multiple steel arch-shelfs (hereinafter referred to as
Arch) to prevent Tunnel Landslide.Since the cross section in tunnel is larger, in order to meet the requirements, the length of each arch also accordingly compared with
Greatly, and for the ease of transport, it is generally the case that each arch can be split as multiple arch sections.
Summary of the invention
Purpose of this disclosure is to provide the clamp mechanisms for arch trolley that one kind can clamp different sizes and structure
With arch trolley.
To achieve the goals above, the disclosure provides a kind of clamp mechanism for arch trolley, wherein clamp mechanism is set
It is placed in the end of the working arm of the arch trolley, the clamp mechanism includes binding clip and first driving device, the binding clip packet
Fixing piece and movable part are included, the first driving device is provided for driving the movable part towards or away from the fixing piece
Movement, to realize clamping or release to arch section, wherein one of the fixing piece and the movable part are provided with limit
Clamping plate, another one are provided with opening towards the limit card slot of the limit clamping plate, and the limit clamping plate and limit card slot are set as
For limiting movement of the clamped arch section relative to the binding clip.
Based on the above technical solution, the disclosure also provides a kind of arch trolley, wherein the arch trolley includes platform
Vehicle and operation unit, the trolley include chassis and running gear, are provided on the chassis for for the trolley and described
Operation unit provides the power unit of power, and the operation unit includes telescopic that bottom end is all connected to the chassis
One working arm and the second working arm, there are two the second working arm settings and sets respectively on the left and right directions of the trolley
It sets in the two sides of first working arm, the end of first working arm is provided with the manipulator for clamping arch section, institute
The end for stating the second working arm is provided with the clamp mechanism for arch trolley of disclosure offer, for clamping different institutes
State arch section.
Through the above technical solutions, the clamp mechanism for arch trolley provided by the disclosure, fixing piece and work
Space between moving part limits the jaw of the binding clip, due to movable part under the action of first driving device can towards or it is remote
Size from kinematic mount, therefore jaw can be adjusted, so as to clamp the arch section with different structure, such as I-shaped
Type arch or truss-like arch, also, can also clamp with various sizes of arch section.The arch platform that the disclosure provides
Vehicle includes above-mentioned clamp mechanism, therefore is equally had the above advantages.
Other feature and advantage of the disclosure will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
Attached drawing is and to constitute part of specification for providing further understanding of the disclosure, with following tool
Body embodiment is used to explain the disclosure together, but does not constitute the limitation to the disclosure.In the accompanying drawings:
Fig. 1 and Fig. 2 is a kind of main view of specific embodiment of the arch trolley provided according to the first aspect of the disclosure
And schematic top plan view, wherein in order to avoid understanding problem caused by lines intersection in Fig. 2, manipulator is not shown；
Fig. 3 and Fig. 4 is the master of another specific embodiment of the arch trolley provided according to the first aspect of the disclosure
Depending on and schematic top plan view, wherein in Fig. 4 in order to avoid lines intersection caused by understand problem, manipulator is not shown；
Fig. 5 and Fig. 6 is the master of another specific embodiment of the arch trolley provided according to the first aspect of the disclosure
Depending on and schematic top plan view, wherein in Fig. 6 in order to avoid lines intersection caused by understand problem, manipulator is not shown；
Fig. 7 is a kind of main view signal of specific embodiment of the clamp mechanism provided according to the second aspect of the disclosure
Figure；
Fig. 8 is a kind of side view signal of specific embodiment of the clamp mechanism provided according to the second aspect of the disclosure
Figure；
Fig. 9 to Figure 11 is the procedure chart using the clamp mechanism lifting arch provided according to the second aspect of the disclosure；
Figure 12 to Figure 14 is a kind of specific embodiment using the handgrip mechanism provided according to the third aspect of the disclosure
Grab the procedure chart of arch, wherein handgrip mechanism is shown in the form of main view；
Figure 15 is the schematic side view of the handgrip mechanism provided according to the third aspect of the disclosure；
Figure 16 is the enlarged diagram of the local A in Figure 15；
Figure 17 shows the masters of another specific embodiment of the handgrip mechanism provided according to the third aspect of the disclosure
Depending on schematic diagram；
Figure 18 is a kind of specific embodiment party of the hook gear in the handgrip mechanism provided according to the third aspect of the disclosure
The schematic diagram of formula；
Figure 19 is another specific implementation of the hook gear in the handgrip mechanism provided according to the third aspect of the disclosure
The schematic diagram of mode；
Figure 20 be according to the third aspect of the disclosure provide handgrip mechanism in upending frame on be arranged stop part, support
The schematic diagram of bar and rolling member；
Figure 21 to Figure 26 is a kind of specific reality of the installation method of the tunnel arch provided according to the fourth aspect of the disclosure
Apply the process schematic of mode；
Figure 27 to Figure 30 is that the another kind of the installation method of the tunnel arch provided according to the fourth aspect of the disclosure is specific
The process schematic of embodiment；
Figure 31 to Figure 32 is still another tool of the installation method of the tunnel arch provided according to the fourth aspect of the disclosure
The process schematic of body embodiment；
Figure 33 and Figure 34 is a kind of master of specific embodiment of the arch trolley provided according to the 5th aspect of the disclosure
Depending on and schematic top plan view；
Figure 35 and Figure 36 is another specific embodiment of the arch trolley provided according to the 5th aspect of the disclosure
Main view and schematic top plan view；
Figure 37 and Figure 38 is still another specific embodiment of the arch trolley provided according to the 5th aspect of the disclosure
Main view and schematic top plan view.
Specific embodiment
It is described in detail below in conjunction with specific embodiment of the attached drawing to the disclosure.It should be understood that this place is retouched
The specific embodiment stated is only used for describing and explaining the disclosure, is not limited to the disclosure.
In the disclosure, in the absence of explanation to the contrary, front, back, left, right, up, down six is defined on the basis of trolley
A orientation, wherein front, rear, left and right direction restriction level face, up and down direction limit vertical direction；In addition, for ease of description,
The telescopic direction for defining working arm is longitudinal direction, perpendicular to the direction definition of the longitudinal direction is transverse direction in horizontal plane,
The forefront of working arm is defined as end, and rearmost is defined as bottom end, is distal end by the part of proximal end, close to the part of bottom end
For proximal end.Above-mentioned term position is only used for the explanation and illustration disclosure, should not be interpreted as the limitation to the disclosure.
Three arm type arch trolley
According to the disclosure in a first aspect, provide a kind of arch trolley, including trolley 1 and operation unit 2, the trolley 1
Including chassis 11 and running gear, it is provided on the chassis 11 for providing power for the trolley 1 and the operation unit 2
Power unit 13, the operation unit 2 includes that bottom end is all connected to telescopic first working arm 21 on the chassis 11
With the second working arm 22, there are two the settings of the second working arm 22 and is respectively set on the left and right directions of the trolley 1
In the two sides of first working arm 21, the end of first working arm 21 is provided with the manipulator for clamping arch section 91
3.Fig. 1 and Fig. 2, Fig. 3 and Fig. 4 and Fig. 5 and Fig. 6 respectively illustrate three kinds of different specific embodiments, these three are specific real
The difference applied between mode is, in Fig. 1 and specific embodiment shown in Fig. 2, the end of the second working arm 22 is provided with fixture
Mechanism 4；In Fig. 3 and specific embodiment shown in Fig. 4, the end of the second working arm 22 is provided with handgrip mechanism 6；In Fig. 5
In specific embodiment shown in fig. 6, the end of the second working arm 22 is not provided only with clamp mechanism 4 and is additionally provided with and grabs
Mobile phone structure 6.But in these three specific embodiments, manipulator 3, clamp mechanism 4 and handgrip mechanism 6 are used to clamp or grab
Different arch sections 91, the operation between three are mutually indepedent.Wherein, in Fig. 5 and specific embodiment shown in fig. 6, folder
There are enough working spaces between tool mechanism 4 and handgrip mechanism 6 are installed as, to avoid when one operation wherein and separately
It is interfered between one.It should be noted that the folder in Fig. 5 and specific embodiment shown in fig. 6, on same working arm
Have mechanism 4 and handgrip mechanism 6 respectively by column 72 and the setting of the second connecting plate 52 in same structure (i.e. described below the
One connecting plate 51 or fixed plate 71, that is to say, that the first connecting plate 51 and fixed plate 71 are the same structures) on, and then by should
Structure setting is in the end of working arm 22, using same slewing equipment (i.e. the second slewing equipment 82 or third slewing equipment 83),
Therefore it is not easy to while operation.In this case, in practical work process, a use can be selected according to the actual situation.In addition,
In the other specific embodiment that the first aspect of the disclosure provides, one of two second working arms 22 be can be set
Handgrip mechanism 6 can be set in clamp mechanism 4, another one.
Through the above technical solutions, being correspondingly arranged at the manipulator 3 and clamp mechanism 4 or handgrip machine of three working arm ends
Structure 6 can manipulate different arch sections 91 simultaneously, therefore, in the installation of arch 9 (successively being docked by multiple arch sections 91)
The arch trolley provided according to the first aspect of the disclosure is provided in the process, can same time effect in multiple arch sections 91,
The installation effectiveness of arch 9 is improved significantly, and then improves the efficiency of constructing tunnel operation.
In the specific embodiment provided according to the first aspect of the disclosure, the manipulator 3 can be with any appropriate
Mode configure, such as, may be implemented as the machinery disclosed in the Chinese patent application of Publication No. CN 205805588U
Hand.
In the specific embodiment provided according to the first aspect of the disclosure, clamp mechanism 4 can be with any appropriate
Mode configures.Such as, may be implemented as according to the clamp mechanism 4 that the second aspect of the disclosure provides, it is described in more detail below.
In the specific embodiment provided according to the first aspect of the disclosure, handgrip mechanism 6 can also be with any appropriate
Mode configure.Such as, may be implemented as according to the third aspect of the disclosure provide the handgrip mechanism 6 for arch trolley,
It is described in more detail below.
Arch section clamped by the manipulator 3 being arranged in order to the end significantly adjusted through the first working arm 21
The bottom end of position, first working arm 21 is connected with the first mounting structure, leads between first mounting structure and the chassis
It crosses main slewing equipment 80 to connect, which limits the first main rotating shaft for being parallel to vertical direction, and for driving
It moves first working arm 21 to rotate around first main rotating shaft, horizontally to adjust the position of clamped arch section 91；
The bottom end of first working arm 21 is articulated with first mounting structure, first main pin by the first main pin
Limit the main rotating shaft line O for being parallel to horizontal plane1, it is provided with the first main drive, for driving first working arm 21
Around the main rotating shaft line O1Rotation, to adjust the height of clamped arch section 91.
Similarly, what the handgrip mechanism 6 being arranged in order to the end significantly adjusted through the second working arm 22 was grabbed
The bottom end of the position of arch section 91, second working arm 22 is provided with the second mounting structure, which passes through the
Two main pins are pivotally connected to the chassis 11, and the second stub axis limit is parallel to the second main rotating shaft of vertical direction,
It is provided with the second main drive, for driving second mounting structure to rotate around second main rotating shaft, with horizontally
Adjust the position of grabbed arch section 91；The bottom end of second working arm 22 is articulated with described second by third main pin
Mounting structure, the third stub axis limit are parallel to the main rotating shaft line O of horizontal plane2, it is provided with third main drive, is used
In driving second working arm 22 around the main rotating shaft line O2Rotation, to adjust the height of grabbed arch section 91.
Selectively, the running gear can be wheel 12, to reduce the total weight of arch trolley, reduce manufacture at
This, while the travel speed and flexibility of arch trolley are improved, in order to quick transition, improve operating efficiency.
Since the weight of arch section 91 is larger, hydraulic leg 14 can be set at four angles on chassis 11, with
The stabilization of trolley 1 is kept in the operation process of working arm.In addition, being set on trolley 1 for the ease of manipulating the traveling of arch trolley
It is equipped with driver's cabin 15.
In addition, power unit 13 may include the engine for driving trolley 1 to walk, and for being 21 He of working arm
22, the hydraulic power of hydraulic leg 14 and the telescopic oil cylinder offer hydraulic oil in manipulator 3, clamp mechanism 4 and handgrip mechanism 6
System.
Clamp mechanism
According to the second aspect of the disclosure, a kind of clamp mechanism 4 for arch trolley is provided.Fixture is shown in Fig. 7
The specific structure of mechanism 4.Wherein, clamp mechanism 4 includes binding clip and first driving device 43, and the binding clip includes 41 He of fixing piece
Movable part 42, the first driving device 43 are provided for that the movable part 42 is driven to transport towards or away from the fixing piece 41
It is dynamic, to realize clamping or release to arch section, wherein the setting of one of the fixing piece 41 and the movable part 42 is limited
Position clamping plate 411, another one are provided with opening towards the limit card slot 421 of the limit clamping plate 411,411 He of limit clamping plate
Limit card slot 421 is provided for limiting movement of the clamped arch section relative to the binding clip.In this clamp mechanism 4
In, the space between fixing piece 41 and movable part 42 limits the jaw of the binding clip, since movable part 42 is in first driving device 4
Under the action of can be moved towards or away from fixing piece 41, therefore the size of jaw can be adjusted, and be had not so as to clamp
Isostructural arch section, such as I-shaped arch or truss-like arch, also, can also clamp with various sizes of arch
Frame section.
Fixing piece 41 and movable part 42 may be embodied as any appropriate structure.Selectively, with reference to shown in Fig. 7, institute
Stating fixing piece 41 includes supporting part 412, and the limit clamping plate 411 extends outwardly from a surface of the supporting part 412；It is described
Movable part 42 includes fixture block 422, which is arranged relative to each other with the limit clamping plate 411, and the limit card slot
421 be arranged in the fixture block 422 towards it is described limit clamping plate 411 surface on.It is able to drive by the movement of movable part 42
Fixture block 422 is moved towards or away from limit clamping plate 411, thus clamping or release arch.
Selectively, the fixture block includes the first fixture block being disposed adjacent along the opening direction of the binding clip and the second folder
Block is respectively arranged with the card slot 421 on first fixture block and the second fixture block, and first fixture block and the second fixture block being capable of edges
The opening direction of the binding clip is mobile to adjust the distance on the opening direction between the card slot 421, so as to
The distance between two card slots 421 are adjusted according to the structure snd size of clamped arch section 91, so that arch is limited in
In card slot 421, there is better versatility.Wherein, the opening direction of the binding clip can be with the extension side of following linking arms 44
, can also be angled perpendicular to the extending direction of linking arm 44, or with the extending direction to identical, the disclosure does not make this to have
Body limits, and can according to need and is accordingly arranged.It should be noted that " opening direction of binding clip " is from holding
The side for being provided with limit clamping plate 411 in support portion 412 is far from the extending direction of supporting part 412.
Opposite fortune in the specific embodiment according to the second aspect of the disclosure, between fixing piece 41 and movable part 42
Kinetic energy is enough realized by various structures.Selectively, with reference to shown in Fig. 7, between the fixing piece 41 and the movable part 42
It is provided with slide construction, which includes mutually matched sliding rail and sliding slot, and the sliding rail is set to the fixing piece 41
One of with the movable part 42, the sliding slot is set to the other of the fixing piece 41 and described movable part 42.
The setting of sliding slot and sliding rail can also be there are many mode.For example, with continued reference to shown in Fig. 7, the sliding slot setting
In the fixing piece 41, and be formed as the U-lag 413 being open towards the movable part 42, the sliding rail is set to the activity
Part 42, the guide part 423 for being formed as being slidably arranged in the U-lag 413 and being in contact with the inner wall of the U-lag 413.
In the specific embodiment according to the second aspect of the disclosure, first driving device 43 can be with any appropriate
Mode configures.Selectively, with reference to shown in Fig. 7, the first driving device 43 is telescopic oil cylinder, and telescopic oil cylinder setting exists
In the U-lag 413, and one end is connected to the slot bottom of the U-lag 413, and the other end is connected to the guide part 423；It can
Selectively, the guide part 423 is provided with the open slot towards the telescopic oil cylinder, and the telescopic oil cylinder is connected to the opening
The bottom of slot, to reduce the size and volume of binding clip.Certainly, described in the other embodiment of the second aspect of the disclosure
First driving device can also be embodied as other forms, such as Worm and worm-wheel gearing.
In addition, the clamp mechanism 4 can also include linking arm 44, the binding clip is connected to the linking arm 44, in order to
Binding clip can reach arch section to be held, too low without adjusting the end of working arm.Linking arm 44 passes through connection knot
Structure is connected to first working arm 21, and the connection structure includes the first connecting plate 51 being mutually connected vertically and the second connection
Plate 52, the linking arm 44 are connected to first connecting plate 51 by the first slewing equipment 81 and are parallel to first connection
Plate 51 extends, and first slewing equipment 81 limits the first rotary shaft extended perpendicular to first connecting plate 51, and uses
In driving the linking arm 44 to rotate around first rotary shaft, second connecting plate 52 is connected with articulated slab 53, this is hinged
Plate 53 is articulated with first working arm 21 by the first pin shaft 55, and the restriction of the first pin shaft 55 is parallel to transverse direction extension
Rotation axis A, the second driving device 54 is provided between first working arm 21 and the articulated slab 53, this second driving
Second connecting plate 52 is adjusted to and water for driving the articulated slab 53 to rotate around the rotation axis A by device 54
Plane is parallel, is on the one hand to guarantee that clamped arch section perpendicular to horizontal plane, on the other hand, operates convenient for holding jig
Platform 47 is horizontal, consequently facilitating the position of arch section clamped by operator's observation in fixture operation platform 47 and posture, thus into
The corresponding adjustment of row.Wherein, fixture operation platform 47 is arranged on the second connecting plate 52, in order to which operator closely can closely adjust
Whole clamped arch section.In the case where the second connecting plate 52 is parallel to the horizontal plane, the first slewing equipment 81 being capable of the company of driving
It connects arm 44 to rotate in the vertical direction, so as to adjust the height of binding clip, this is also convenient for the height and angle of adjustment arch, such as Fig. 9
To shown in Figure 11.
With continued reference to Fig. 7, second connecting plate 52 is connect by the second slewing equipment 82 with the articulated slab 53, described
Second slewing equipment 82 limits the second rotary shaft extended perpendicular to second connecting plate 52, and for driving described second
Connecting plate 52 is rotated around second rotary shaft, to finely tune the position of arch section clamped by binding clip in a horizontal plane.
With continued reference to Fig. 7, the linking arm 44 is telescopic arm, including outer sleeve 441, is set in the outer sleeve 441
Inner cylinder set 442 and third driving device 45, the third driving device 45 setting is in the outer sleeve 441 and the inner cylinder set
In 442, and one end is connected to the outer sleeve 441, and the other end is connected to the inner cylinder set 442, to drive the inner cylinder set
442 along the outer sleeve 441 length direction it is flexible, convenient for clamping arch section to be held, and slight adjustment arch section
Position increases the accessibility range of arch section.First slewing equipment 81 is connected to the outer sleeve 441, and the binding clip connects
It is connected to the end (one end i.e. far from outer sleeve 441) of the inner cylinder set 442.
With reference to shown in Fig. 8, the fixing piece 41 is articulated with the end of the linking arm 44 by the second pin shaft 414, should
Second pin shaft 414 limits the rotation axis B for being parallel to first rotary shaft, and the fixing piece 41 and the linking arm 44
Between be provided with fourth drive device 46, the fourth drive device 46 is for driving the fixing piece 41 around the rotation axis B
Rotation, to finely tune the position of arch section and posture clamped by binding clip, and is also convenient for the clamping of arch section to be held.Its
In, it is provided with set square 415 on fixing piece 41, is easy to implement above-mentioned hinged.
Handgrip mechanism
According to the third aspect of the disclosure, a kind of handgrip mechanism 6 for arch trolley is provided.Figure 12 to Figure 16 is shown
A kind of specific embodiment of handgrip mechanism 6.Wherein, the handgrip mechanism 6 is connected to the arch trolley by fixed structure
Working arm 22 end, the handgrip mechanism 6 includes for grabbing the hook gear 61 of arch section 91, being installed on the fixation
The hoist engine 62 of structure and upending frame 63 for being lifted the arch section 91, the upending frame 63 are articulated with institute by third pin shaft
Fixed structure is stated, the third pin shaft limits the rotation axis C for being parallel to horizontal plane, and the handgrip mechanism 6 further includes the 5th drive
Dynamic device 64, for driving the upending frame 63 to rotate around the rotation axis C, the hook gear 61 passes through wirerope 621
It is connect with the hoist engine 62, the position on the fixed structure close to the third pin shaft is provided with for engaging the suspension hook
The locking structure of device 61.
Referring to figs 12 to shown in Figure 14, wirerope 621 is on the reel 622 of hoist engine 62, by discharging steel wire
Rope 621 can reach arch section 91 to be captured convenient for hook gear 61.Later, wirerope 621 is furled, by what is grabbed
Arch section 91 is pulled towards handgrip mechanism 6, while adjusting height, angle and the stroke of corresponding working arm 22, and control
The arch section grabbed can be supported on upending frame 63 by the rotation of upending frame 63 processed；Then, by continuing to furl wirerope
621, hook gear 61 can be pulled to locking structure and engaged wherein, the crawl to arch section 91 is thus completed.Later,
The arch section 91 grabbed can be sent to desired position by working arm 22.
Wherein, hook gear 61 can be implemented in any suitable manner.Selectively, with reference to institute in Figure 18 and Figure 19
Show, the hook gear 61 includes the main body 610 and two claw hooks 611 for being connected to the wirerope 621, two claw hooks
611 bottom end is connected to the main body 610 by fastener 612, and two claw hooks 611 angularly extend, each described
The end of claw hook 611 is each formed with hook portion 613.Institute in the specific embodiment shown in Figure 18, on two claw hooks 611
It states hook portion 613 to be formed by the end of the corresponding claw hook 611 with respect to bending, the hook gear 61 with this structure
It can be to be used for I-shaped arch.The hook portion in the specific embodiment shown in Figure 19, on two claw hooks 611
613 are bent in opposite directions by the end of the corresponding claw hook 611, and close to the hook on each claw hook 611
The position in portion 613 is provided with positive stop hook 614, and the hook gear 61 with this structure can be used for truss-like arch.
In the specific embodiment shown in Figure 18 and Figure 19, it can be adjusted by unscrewing fastener 612 (such as bolt)
Angle between two claw hooks 611, to adapt to have various sizes of arch；Tightening fastener parts 612 later are capable of fixing two
Angle between claw hook 611 avoids arch from deviating from from hook portion 613.
In the specific embodiment of the third aspect of the disclosure, locking structure can configure in any suitable manner.
Such as shown in Figure 17, the locking structure includes two fixed pulleys 65 disposed in parallel, and the wirerope 621 is from described in two
The main body 610 of the hook gear 61 is passed through and is connected between fixed pulley 65, in this regard, this is also to grab shown in Figure 17
Mobile phone structure 6 is different from 6 place of handgrip mechanism shown in Figure 12 to Figure 15.Reel 622 furls wirerope 621 to hook gear 61
Main body 610 be inserted into two fixed pulleys 65 between, realize the locking.Alternatively, locking structure may be embodied as such as Figure 12 to figure
Structure shown in 16.With specific reference to Figure 15 and Figure 16, the locking structure includes a fixed pulley 65 disposed in parallel and one
A movable pulley 66, the wirerope 621 are connected to the suspension hook from passing through between the fixed pulley 65 and the movable pulley 66
The main body 610 of device 61.The main body 610 that reel 622 furls wirerope 621 to hook gear 61 is inserted into fixed pulley 65 and is moved
Between pulley 66, the locking is realized.The locking structure further includes bias piece 661, the movable pulley 66 is pressed to described
Fixed pulley 65.Wherein bias, which subtracts 611, to configure in any suitable manner, for example, it may be torsional spring.The fixed pulley 65 is logical
It crosses fixed plate 651 and is connected to the fixed structure, the movable pulley 66 is installed on pressing plate 662, and one end of torsional spring is connected to the pressure
Plate 662, the other end are connected to the fixed plate 651, to provide the active force that pressing plate 662 is pressed to fixed plate 651.In this feelings
Under condition, in the case where hook gear 61 is locked, it still is able to driving upending frame 63 and rotates certain angle around rotation axis C
Degree, so as to adjust the posture of arch, in order to install.
In addition, the end of the upending frame 63 can be set, there are two rod-shaped stop parts 631, and the stop part 631 is substantially
Angularly extend perpendicular to the length direction of the upending frame 63, it is sliding from upending frame 63 to avoid the arch section grabbed
It is de-.With reference to shown in Figure 20, two stop parts 631 pass through the support extended perpendicular to the length direction of the upending frame 63
Bar 632 connects, which is connected to the upending frame 63, and the stop part 631 and the support bar 632 are equipped with rolling
Moving part 633, the rolling member 633 are rotated around the extending direction of the corresponding stop part 631 and the support bar 632, to provide
Being in rolling contact between the arch section grabbed and upending frame 63.
The fixed structure includes fixed plate 71 and the column 72 that upwardly extends perpendicular to the fixed plate 71, and the described 5th drives
Dynamic device 64 is arranged between the fixed plate 71 and the upending frame 63, and the upending frame 63 is articulated with the column 72, institute
It states fixed plate 71 and is connected with articulated slab 73, the articulated slab 73 is articulated with the end of second working arm 22 by the 4th pin shaft 74
End, the 4th pin shaft 74 limit the rotation axis D for being parallel to transverse direction extension, second working arm 22 and the articulated slab
The 6th driving device 75 is provided between 73, it, will be described solid for driving the articulated slab 73 to rotate around the rotation axis D
Fixed board 71 is adjusted to be parallel to horizontal plane, is on the one hand to keep grabbed arch section perpendicular to horizontal plane, on the other hand,
It is horizontal convenient for keeping handgrip station 67, consequently facilitating the operator in handgrip station 67 observes the position of grabbed arch section
It sets and posture, to be adjusted correspondingly.Wherein, fixture operation platform 67 is arranged in fixed plate 71, in order to operator's energy
Enough nearly closely grabbed arch sections of adjustment.
Selectively, it is provided with third slewing equipment 83 between the articulated slab 73 and the fixed plate 71, which returns
Rotary device 83 limits the third rotary shaft that extends perpendicular to the fixed plate 71, and is used to driving the fixed plate 71 around described
Third rotary shaft rotation, to finely tune the position of grabbed arch section in a horizontal plane.
The installation method of tunnel arch
According to the fourth aspect of the disclosure, a kind of installation method of tunnel arch is provided, method includes the following steps:
S1: multiple arch sections 91 are transported to the predetermined position in tunnel (such as using transport device (such as transport vehicle etc.)
Shown in Figure 21)；
S2: providing arch trolley, installs multiple arch sections 91 using the arch trolley to be formed as arch 9, wherein
The arch trolley includes trolley 1 and operation unit 2, and the trolley 1 includes chassis 11 and running gear, is set on the chassis 11
It is equipped with for providing the power unit 13 of power for the trolley 1 and the operation unit 2, the operation unit 2 includes
The bottom end of flexible the first working arm 21 and the second working arm 22, first working arm 21 and the second working arm 22 is all connected to
The chassis 11, there are two the settings of the second working arm 22 and is separately positioned on institute on the left and right directions of the trolley 1
The two sides of the first working arm 21 are stated, the end of first working arm 21 is provided with the manipulator for clamping the arch section 91
3, the end of second working arm 22 is provided with the clamp mechanism for clamping and/or grabbing the different arch sections 91
4 and/or handgrip mechanism 6.
In the installation method of the tunnel arch provided according to the fourth aspect of the disclosure, used arch trolley has
Three working arms, the manipulator 3 and clamp mechanism 4 or handgrip mechanism 6 for being correspondingly arranged at three working arm ends can be grasped simultaneously
Different arch sections 91 is indulged, therefore, in the installation process of arch 9 (successively being docked by multiple arch sections 91), Neng Goutong
One time carried out installation exercise to multiple arch sections 91, improved the installation effectiveness of arch 9 significantly, and then improve constructing tunnel
The efficiency of operation.
In above-mentioned steps S2, the connection between multiple arch sections 91 can be completed with a variety of sequences, below with reference to figure
22 to Figure 33 specifically describe three kinds of orders of connection.Before this it should be noted that being embodied shown in Figure 21 to Figure 33
In mode, three arch sections 91 are only shown, in this regard, it is emphasized that Figure 21 be only used for Figure 33 so that corresponding step more
Add it is clear, be not used to by corresponding step limit be used only for installation three arch sections 91；In addition, used arch trolley
The form (with reference to shown in Fig. 3 and Fig. 4) of handgrip mechanism 6 is set for the end of the second working arm 22.But those skilled in the art
It is also contemplated that arch trolley can also be embodied as the form of the end setting clamp mechanism 4 of the second working arm 22 (with reference to figure
Shown in 1 and Fig. 2), alternatively, the form of clamp mechanism 4 and handgrip mechanism 6 is arranged in the end of same second working arm 22 simultaneously
(with reference to shown in Fig. 5 and Fig. 6).
In a kind of specific embodiment of the fourth aspect of the disclosure, when arch 9 is by the odd number arch section 91 greater than 1
When composition, such as three or five, the connection between multiple arch sections 1 can be carried out in a manner of both ends behind first centre.With reference to
Shown in Figure 22 to Figure 25, above-mentioned steps S2 can be refined as following steps:
S21: the clamping of the manipulator 3 of control first working arm 21 and its end corresponds among the arch 9
The arch section 91 of position, and lift and adjust the arch section 91, until reaching position to be installed, as shown in Figure 22；
S22: the clamp mechanism 4 or handgrip mechanism 6 of control second working arm 22 and its end are relative to being located at
The arch section 91 in middle position successively clamps or grabs from the near to the remote the arch at centrally located 91 both ends of arch section
Frame section 91, and the corresponding arch section 91 is successively lifted and adjusts, so that the adjacent arch section 91 is docked, such as scheme
Shown in 23 and Figure 24；And the adjacent arch section 91 is connected using fastener (such as bolt), to form the arch 9,
As shown in Figure 25；
S23: the manipulator 3, second working arm 22 and its end of control first working arm 21 and its end
The clamp mechanism 4 or handgrip mechanism 6 at end, the arch 9 is stood in ground G.
Wherein, in the step S22, in the clamp mechanism 4 or handgrip of wherein one second working arm 22
Mechanism 6 discharges clamped or crawl the arch section 91 and clamps or grab next arch section 91 to the arch section 91
Before completing connection, the clamp mechanism 4 or handgrip mechanism 6 of another second working arm 22 are kept to corresponding described
The clamping or crawl of arch section 91, the load undertaken to avoid the first working arm 21 are excessive.
In addition, with reference to Figure 27 to Figure 30, in another specific embodiment of the fourth aspect of the disclosure, the step
S2 the following steps are included:
S21: on the ground using fastener (such as bolt) successively by the adjacent institute in addition to the last one arch section 91
It states arch section 91 and is joined together to form whole 90, as shown in Figure 27；
S22: the manipulator 3 of control 21 end of the first working arm clamps the middle section of the entirety 90, and
And control one of them 22 end of the second working arm the clamp mechanism 4 or handgrip mechanism 6 clamping or grab described whole
The corresponding part of body 90；
S23: control controls the manipulator 3 of first working arm 21 and its end, corresponding second work
Arm 22 and its clamp mechanism 4 or handgrip mechanism 6 of end, the entirety 90 is vertical straight, as shown in Figure 28；
S24: the clamp mechanism 4 or handgrip mechanism 6 for controlling another 22 end of the second working arm are clamped or are grabbed
The remaining arch section 91 is taken, and controls the clamp mechanism 4 or handgrip machine of second working arm 22 and its end
Structure 6 lifts and adjusts the arch section 91, so that the arch section 91 is docked with the respective end of the entirety 90, in Figure 29
It is shown, and the two is linked together using fastener (such as bolt), to form the arch 9, as shown in Figure 30；
S25: the manipulator 3, second working arm 22 and its end of control first working arm 21 and its end
The clamp mechanism 4 or handgrip mechanism 6 at end, the arch 9 is stood in ground G.
Wherein, in the step S23, the end of one end corresponding to second working arm 22 of the entirety 90 is vertical
In in the ground G, a part of load is shed using the support of ground G, mitigates the weight bearing of arch trolley.
It is described in still another specific embodiment of the fourth aspect of the disclosure with reference to shown in Figure 31 and Figure 32
Step S2 the following steps are included:
S21: on the ground successively being linked together the adjacent arch section 91 using fastener (such as bolt), with
Be formed as the arch 9, as shown in Figure 31；
S22: the manipulator 3 of control 21 end of the first working arm clamps the middle section of the arch 9, and
The clamp mechanism 4 or handgrip mechanism 6 of two 22 ends of the second working arm of control clamp or grab respectively the arch 9
The corresponding part of two sides；
S23: the manipulator 3, second working arm 22 and its end of control first working arm 21 and its end
The clamp mechanism 4 or handgrip mechanism 6 at end, the arch 9 are stood in ground G, as shown in Figure 32.
In simple terms, in the specific embodiment shown in Figure 31 and Figure 32, step S2 be may be summarized to be: on the ground will
Whole arch sections 91 are linked together and then are erected using arch trolley.
For above-mentioned latter two embodiment, in the step S21, can be used first working arm 21 and
The manipulator 3 of its end, the clamp mechanism 4 of second working arm 22 and its end or handgrip mechanism 6 clamping or
The corresponding arch section 91 is grabbed to be adjusted to the position for being convenient for docking with the adjacent arch section 91.
In addition, in the specific embodiment of the fourth aspect offer of the disclosure, the installation method further include:
Step S3: drawing between two adjacent arches 9 and set reinforcing bar and steel wire, to reinforce and arch described in supporting
9。
In addition, the installation method further include: step S4: controlling the manipulator 3 and the clamp mechanism 4 or handgrip machine
Structure 6 discharges the arch 9, adjusts first working arm 21 later and the second working arm 22 returns to rest position, in Figure 26
It is shown；The arch trolley is driven out to from the tunnel later；Step S5: repeat the above steps S1-S4, next to install
Arch 9.
Caliper arch trolley
According to the 5th of disclosure aspect, a kind of arch trolley is provided, which includes trolley 1 and operation unit 2,
The trolley 1 includes chassis 11 and running gear, is provided on the chassis 11 for being the trolley 1 and the operation unit
2 provide the power unit 13 of power, and the operation unit 2 includes two telescopic works that bottom end is all connected to the chassis 11
Make arm 22, the left and right sides which corresponds to the trolley 1 is arranged.
Figure 33 and Figure 34, Figure 35 and Figure 36 and Figure 37 and Figure 38 respectively illustrate three kinds of different specific embodiments,
Difference between these three specific embodiments is, in specific embodiment shown in Figure 33 and Figure 34, the end of working arm 22
It is provided with clamp mechanism 4；In the specific embodiment shown in Figure 35 and Figure 36, the end of working arm 22 is provided with handgrip mechanism
6；In the specific embodiment shown in Figure 37 and Figure 38, the end of the second working arm 22 be not provided only with clamp mechanism 4 and
It is additionally provided with handgrip mechanism 6.But in these three specific embodiments, clamp mechanism 4 and handgrip mechanism 6 are used to clamp or grab
Different arch sections 91 is taken, operation between the two is mutually indepedent.Wherein, the specific embodiment shown in Figure 37 and Figure 38
In, there are enough working spaces between clamp mechanism 4 and handgrip mechanism 6 are installed as, to avoid one operation wherein
When and another one between interfere.In addition, in another embodiment of the 5th aspect offer of the disclosure, two works
Making one of arm can be set clamp mechanism 4, and handgrip mechanism 6 can be set in another one.
Through the above technical solutions, being correspondingly arranged at 6 energy of clamp mechanism 4 and/or handgrip mechanism of two working arm ends
Enough while different arch sections 91 is manipulated, therefore, in the installation process of arch 9 (successively being docked by multiple arch sections 91)
The arch trolley provided for the use of according to the 5th of the disclosure the, can same time effect in two arch sections 91, to provide
The installation effectiveness of arch 9, and then improve the efficiency of constructing tunnel operation.
In the specific embodiment that the 5th aspect according to the disclosure provides, clamp mechanism 4 can be with any appropriate
Mode configures.Such as, may be implemented as the above-mentioned clamp mechanism 4 provided according to the second aspect of the disclosure.
In the specific embodiment that the 5th aspect according to the disclosure provides, handgrip mechanism 6 can also be with any appropriate
Mode configure.Such as, may be implemented as the above-mentioned handgrip mechanism 6 provided according to the third aspect of the disclosure.
It should be noted that the clamp machine in the specific embodiment shown in Figure 37 and Figure 38, on same working arm 22
By column 72 and the setting of the second connecting plate 52, in same structure, (i.e. the above first connects respectively for structure 4 and handgrip mechanism 6
Fishplate bar 51 or fixed plate 71, that is to say, that the first connecting plate 51 and fixed plate 71 are the same structures) on, and then with this configuration
The end of working arm 22 is set, using same slewing equipment (i.e. the second slewing equipment 82 or third slewing equipment 83), therefore
It is not easy to while operation.In this case, in practical work process, a use can be selected according to the actual situation.
With the arch trolley that is provided according to the first aspect of the disclosure the difference is that, according to the 5th side of the disclosure
The arch trolley that face provides is provided only with two working arms.
In addition, since the application environment of the arch trolley provided according to the 5th of disclosure aspect limits every section of arch
Weight is not too large, and therefore, two working arms therein can correspond to the arch platform provided according to the first aspect of the disclosure
The second working arm 22 in vehicle is configured.
Wherein, the working arm can be in a manner of identical with the second working arm 22 in the first aspect according to the disclosure
Setting, it may be assumed that 22 bottom end of working arm is provided with mounting structure, which is parallel to the main rotation of vertical direction by limiting
The pin shaft of axis is pivotally connected to the trolley 1, is provided between the mounting structure and the trolley 1 for driving the installation
The driving device that structure is rotated around the main rotating shaft；Alternatively, the mounting structure can also be parallel to vertical side by limiting
To the slewing equipment of main rotating shaft connect with the trolley 1, to realize the rotation in horizontal plane, to adjust in a horizontal plane
The position of arch section.
In addition, the bottom end of the working arm 22 is articulated with institute by limiting the pin shaft for the main rotating shaft line for being parallel to horizontal plane
Mounting structure is stated, is provided between the working arm 22 and the mounting structure for driving the working arm 22 around the main rotation
The driving device of shaft axis rotation, to adjust the height of arch section.
Selectively, the running gear can be wheel 12, to reduce the total weight of arch trolley, reduce manufacture at
This, while the travel speed and flexibility of arch trolley are improved, in order to quick transition, improve operating efficiency.
Since the weight of arch section 91 is larger, hydraulic leg 14 can be set at four angles on chassis 11, with
The stabilization of trolley 1 is kept in the operation process of working arm.In addition, being set on trolley 1 for the ease of manipulating the traveling of arch trolley
It is equipped with driver's cabin 15.
In addition, power unit 13 may include for drive trolley 1 walk engine, and for for working arm 22,
Telescopic oil cylinder in hydraulic leg 14 and clamp mechanism 4 and handgrip mechanism 6 provides the hydraulic power system of hydraulic oil.
The preferred embodiment of the disclosure is described in detail in conjunction with attached drawing above, still, the disclosure is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical solution of the disclosure
Monotropic type, these simple variants belong to the protection scope of the disclosure.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the disclosure to it is various can
No further explanation will be given for the combination of energy.
In addition, any combination can also be carried out between a variety of different embodiments of the disclosure, as long as it is without prejudice to originally
Disclosed thought equally should be considered as disclosure disclosure of that.
Claims (11)
1. a kind of clamp mechanism for arch trolley, which is characterized in that the clamp mechanism (4) is set to the arch trolley
Working arm end, the clamp mechanism (4) includes binding clip and first driving device (43), and the binding clip includes fixing piece
(41) and movable part (42), the first driving device (43) are provided for driving the movable part (42) towards or away from institute
Fixing piece (41) movement is stated, to realize clamping or release to arch section (91), wherein the fixing piece (41) and the activity
One of part (42) is provided with limit clamping plate (411), and another one is provided with the limit of opening towards limit clamping plate (411)
Card slot (421), limit clamping plate (411) and limit card slot (421) are provided for limiting clamped arch section (91) phase
Movement for the binding clip；
The clamp mechanism (4) further includes linking arm (44), and the binding clip is connected to the linking arm (44), the fixing piece (41)
It is fixedly connected on the end of the linking arm (44), which is connected to the working arm by connection structure, described
Connection structure includes the first connecting plate (51) and the second connecting plate (52) being mutually connected vertically,
The linking arm (44) is connected to first connecting plate (51) by the first slewing equipment (81) and is parallel to described the
One connecting plate (51) extends, and first slewing equipment (81) limits the first rotation extended perpendicular to first connecting plate (51)
Shaft, and for driving the linking arm (44) to rotate around first rotary shaft,
Second connecting plate (52) is connected with articulated slab (53), which is articulated with described by the first pin shaft (55)
Working arm, first pin shaft (55) limit the rotation axis A for being parallel to transverse direction extension, the working arm and described hinged
The second driving device (54) are provided between plate (53), second driving device (54) is for driving the articulated slab (53) around institute
Rotation axis A rotation is stated, second connecting plate (52) is adjusted to be parallel to the horizontal plane.
2. the clamp mechanism according to claim 1 for arch trolley, which is characterized in that the fixing piece (41) includes
Supporting part (412), limit clamping plate (411) extend outwardly from a surface of the supporting part (421)；The movable part
It (42) include fixture block (422), which is arranged relative to each other with the limit clamping plate (411), and the limit
Card slot (421) is arranged in the fixture block (422) towards on the surface of limit clamping plate (411).
3. the clamp mechanism according to claim 2 for arch trolley, which is characterized in that the fixture block includes along described
The first fixture block and the second fixture block that the opening direction of binding clip is disposed adjacent are respectively arranged on first fixture block and the second fixture block
The card slot (421), first fixture block and the second fixture block can be moved along the opening direction of the binding clip to adjust the card
The distance on the opening direction between slot (421).
4. the clamp mechanism according to claim 1 for arch trolley, which is characterized in that the fixing piece (41) and institute
It states and is provided with slide construction between movable part (42), which includes mutually matched sliding rail and sliding slot, and the sliding rail is set
It is placed in one of the fixing piece (41) and the movable part (42), the sliding slot is set to the fixing piece (41) and described
The other of movable part (42).
5. the clamp mechanism according to claim 4 for arch trolley, which is characterized in that the sliding slot is set to described
Fixing piece (41), and be formed as U-lag (413) of the opening towards the movable part (42), the sliding rail is set to the activity
Part (42), the guiding for being formed as being slidably arranged in the U-lag (413) and being in contact with the inner wall of the U-lag (413)
Portion (423).
6. the clamp mechanism according to claim 5 for arch trolley, which is characterized in that the first driving device
It (43) is telescopic oil cylinder, which is arranged in the U-lag (413), and one end is connected to the U-lag (413)
Slot bottom, the other end is connected to the guide part (423).
7. the clamp mechanism according to claim 6 for arch trolley, which is characterized in that the guide part (423) sets
It is equipped with the open slot towards the telescopic oil cylinder, the telescopic oil cylinder is connected to the bottom of the open slot.
8. the clamp mechanism according to claim 1 for arch trolley, which is characterized in that second connecting plate (52)
It is connect by the second slewing equipment (82) with the articulated slab (53), second slewing equipment (82) limits perpendicular to described the
The second rotary shaft that two connecting plates (52) extend, and for driving second connecting plate (52) to turn around second rotary shaft
It is dynamic.
9. the clamp mechanism according to claim 1 for arch trolley, which is characterized in that the linking arm (44) is to stretch
Contracting arm, including outer sleeve (441), the inner cylinder set (442) being set in the outer sleeve (441) and third driving device (45),
The third driving device (45) setting in the outer sleeve (441) and the inner cylinder set (442), and one end be connected to it is described
Outer sleeve (441), the other end are connected to the inner cylinder set (442), to drive the inner cylinder set (442) along the outer sleeve
(441) length direction stretches, and first slewing equipment (81) is connected to the outer sleeve (441), the binding clip connection
In the end of the inner cylinder set (442).
10. the clamp mechanism according to claim 1 for arch trolley, which is characterized in that the fixing piece (41) is logical
The end that the second pin shaft (414) is articulated with the linking arm (44) is crossed, second pin shaft (414) restriction is parallel to first rotation
The rotation axis B of shaft, and fourth drive device (46) are provided between the fixing piece (41) and the linking arm (44),
The fourth drive device (46) is for driving the fixing piece (41) to rotate around the rotation axis B.
11. a kind of arch trolley, which is characterized in that the arch trolley includes trolley (1) and operation unit (2), the trolley (1)
Including chassis (11) and running gear, it is provided on the chassis (11) for being the trolley (1) and the operation unit (2)
The power unit (13) of power is provided, the operation unit (2) includes that bottom end is all connected to the scalable of the chassis (11)
The first working arm (21) and the second working arm (22), second working arm (22) setting there are two and in the trolley
(1) two sides of first working arm (21) are separately positioned on left and right directions, the end of first working arm (21) is set
It is equipped with the manipulator (3) for clamping arch section (91), the end of second working arm (22) is provided with wants according to right
Clamp mechanism described in any one of 1-10 (4) are asked, for clamping the different arch sections (91).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710014250.4A CN106761853B (en) | 2017-01-09 | 2017-01-09 | Clamp mechanism and arch trolley for arch trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710014250.4A CN106761853B (en) | 2017-01-09 | 2017-01-09 | Clamp mechanism and arch trolley for arch trolley |
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| Publication Number | Publication Date |
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| CN106761853A CN106761853A (en) | 2017-05-31 |
| CN106761853B true CN106761853B (en) | 2019-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710014250.4A Active CN106761853B (en) | 2017-01-09 | 2017-01-09 | Clamp mechanism and arch trolley for arch trolley |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107842378B (en) * | 2017-11-03 | 2023-09-01 | 北京新能正源智能装备有限公司 | Manipulator for arch centering and arch centering installation trolley |
| CN108756957B (en) * | 2018-04-19 | 2020-04-07 | 陕西道一智能科技有限公司 | Special hydraulic clamp assembly for tunnel arch center installation |
| CN108383055A (en) * | 2018-05-10 | 2018-08-10 | 北京新能正源智能装备有限公司 | Arch installs trolley and its telescopic arm and arm joint gap adjusting structure |
| CN109834615B (en) * | 2019-04-03 | 2023-10-10 | 四川蓝海智能装备制造有限公司 | Arch frame clamping device |
| CN110905560B (en) * | 2019-12-05 | 2021-11-02 | 中国铁建重工集团股份有限公司 | Docking device |
| CN112267902A (en) * | 2020-10-16 | 2021-01-26 | 洛阳兴坤隧道工程机械有限公司 | Double-section vertical arch trolley |
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