CN220485141U - Hoisting equipment for precast pile production - Google Patents

Abstract

The utility model discloses hoisting equipment for precast pile production, which comprises a bridge frame capable of transversely and reciprocally moving along a transverse moving steel rail, and a connecting mechanism which is arranged on the bridge frame and can vertically and reciprocally move; the connecting mechanism comprises a lifting assembly arranged on the bridge frame, a lifting beam connected with the lifting assembly, and a plurality of sucker assemblies which are sequentially arranged on the lifting beam at intervals and can be connected with objects to be lifted. The lifting device is simple in structure and convenient to operate, does not need to be manually connected in the lifting process, is high in automation degree, and saves time and labor.

Description

Hoisting equipment for precast pile production

Technical Field

The utility model relates to the technical field of hoisting, in particular to hoisting equipment for precast pile production.

Background

Precast piles are piles made of various materials and in various forms in factories, and piles are driven, pressed or vibrated into soil by pile sinking equipment so as to meet the requirement of a building on the firmness degree of a foundation.

Precast pile needs pre-buried lifting hook in prefabrication shaping in-process, need through the hole of manual cleaning pre-buried lifting hook after prefabrication shaping, then the manual work makes handling equipment hang the lifting hook and carries out handling, complex operation, waste time and energy.

Disclosure of Invention

The utility model aims to provide hoisting equipment for precast pile production, so as to solve the problems of complex operation, time and labor waste in the pile hoisting process.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the hoisting equipment for precast pile production comprises a bridge frame capable of transversely and reciprocally moving along a transverse moving steel rail and a connecting mechanism which is arranged on the bridge frame and can vertically and reciprocally move;

the connecting mechanism comprises a lifting assembly arranged on the bridge frame, a lifting beam connected with the lifting assembly, and a plurality of sucker assemblies which are sequentially arranged on the lifting beam at intervals and can be connected with objects to be lifted.

Compared with the prior art, the utility model has the beneficial effects that: the lifting device is simple in structure and convenient to operate, does not need to be manually connected in the lifting process, is high in automation degree, and saves time and labor.

Preferably, the sucker assembly comprises a vacuum sucker and an electromagnetic sucker, wherein the vacuum sucker and the electromagnetic sucker comprise suckers, and the vacuum sucker and the electromagnetic sucker are sequentially arranged on the hanging beam at intervals.

Preferably, the lifting assembly is provided with a control assembly, a lifting power source and a lifting rod capable of vertically and reciprocally moving, the control assembly comprises an encoder which is arranged on the lifting assembly and provided with a gear, the lifting rod is provided with a rack which is in meshed connection with the gear, and the encoder is electrically connected with the lifting power source.

Preferably, a flexible connecting piece is arranged between the hanging beam and the lifting assembly;

the flexible connecting piece comprises at least one of a chain, a telescopic cylinder and a steel cable.

Preferably, the bridge is provided with a traversing power source, and the output end of the traversing power source is connected with traversing rollers which are arranged on the bridge and are matched with the traversing steel rails;

and/or, the bridge frame is provided with a longitudinal movement mounting seat, the lifting assembly is connected with the longitudinal movement mounting seat, the longitudinal movement mounting seat is provided with a longitudinal movement power source, and the output end of the longitudinal movement power source is connected with a longitudinal movement roller which is arranged on the longitudinal movement mounting seat and is matched with a longitudinal movement track on the bridge frame.

Preferably, the vacuum chuck comprises a vacuum pump arranged on the hanging beam and a branch pipe box communicated with the vacuum pump, wherein the branch pipe box is provided with connecting air pipes corresponding to the chucks of the vacuum chuck assembly one by one, the connecting air pipes are communicated with electromagnetic valves, the electromagnetic valves are communicated with reversing valves, and the reversing valves are communicated with the chucks.

Preferably, the sucker assembly further comprises a buffer assembly, and the buffer assembly is arranged between the hanging beam and the sucker.

Preferably, the buffer assembly comprises a fixed bottom plate fixed on the hanging beam, a sliding column movably installed on the hanging beam, a mounting plate and an elastic piece wound on the sliding column;

one end of the elastic piece is arranged on the fixed bottom plate, the other end of the elastic piece is arranged on the mounting plate, and the sliding column is provided with a limit nut for abutting against the mounting plate.

Preferably, first detection pieces are arranged on two lateral sides of the hanging beam, second detection pieces are arranged on two vertical sides of the hanging beam, the first detection pieces are electrically connected with the transverse moving power source, and the second detection pieces are electrically connected with the lifting power source;

and/or a weight sensor is arranged between the hanging beam and the lifting assembly, and the weight sensor is electrically connected with the lifting power source;

and/or a weight sensor is arranged between the hanging beam and the lifting assembly, at least two sides of the hanging beam in the longitudinal direction are provided with self-locking assemblies, each self-locking assembly comprises a self-locking drive and a clamping jaw connected with the self-locking drive, and the self-locking drive is electrically connected with the weight sensor.

Preferably, the bridge frame is provided with an operation chamber, an electric control cabinet is arranged in the operation chamber, and the electric control cabinet is electrically connected with the transverse moving power source, the longitudinal moving power source, the lifting assembly and the sucker assembly.

Drawings

FIG. 1 is a front view of a handling apparatus for precast pile production;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is an enlarged view of part B of FIG. 1;

FIG. 4 is an enlarged view of a portion C of FIG. 1;

FIG. 5 is a top view of a handling apparatus for precast pile production;

FIG. 6 is a schematic view of the structure of the vacuum chuck;

FIG. 7 is a schematic view of a lift assembly;

fig. 8 is a partial enlarged view of the portion D in fig. 7;

fig. 9 is a schematic structural view of the clamping jaw.

In the figure: 1. a bridge; 2. longitudinally moving the mounting seat; 21. a longitudinally moving roller; 22. a longitudinally moving force source; 3. a lifting power source; 31. a lifting rod; 32. a rack; 33. an encoder; 34. a gear; 4. a hanging beam; 5. traversing the steel rail; 6. a traversing power source; 61. a traversing roller; 71. a sliding column; 72. a mounting plate; 73. a limit nut; 74. an elastic member; 75. a fixed bottom plate; 8. a suction cup; 81. a reversing valve; 82. an electromagnetic valve; 9. a flexible connection member; 10. a first detecting member; 11. an operation chamber; 12. self-locking driving; 13. a rotating shaft; 14. a clamping jaw; 15. and longitudinally moving the track.

Detailed Description

In order to better understand the aspects of the present utility model, the present utility model will be described in further detail with reference to the accompanying drawings and detailed description.

In the present specification, the terms "upper, lower, inner, outer" and the like are established based on the positional relationship shown in the drawings, and the corresponding positional relationship may be changed according to the drawings, so that the terms are not to be construed as absolute limitation of the protection scope; moreover, relational terms such as "first" and "second", and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.

The transverse direction is the width direction of the lifted object, the longitudinal direction is the length direction of the lifted object, and the vertical direction is the height direction of the lifted object.

Referring to fig. 1 to 4, the present embodiment provides a hoisting apparatus for precast pile production, which includes a bridge frame 1 capable of transversely reciprocating along a transverse rail 5, and a connecting mechanism mounted on the bridge frame 1 and capable of vertically reciprocating; the connecting mechanism comprises a lifting assembly arranged on the bridge frame 1, a lifting beam 4 connected with the lifting assembly, and a plurality of sucker assemblies which are arranged on the lifting beam 4 at intervals in sequence and can be connected with objects to be lifted.

Specifically, this embodiment provides precast pile production and uses handling equipment to drive sucking disc subassembly through bridge 1 and the lifting unit who can sideslip and remove to by handling object department, and the rethread sucking disc subassembly is connected by handling object, later again through bridge 1 and lifting unit drive sucking disc subassembly and the overhead handling object on it remove to predetermineeing storage position to accomplish by handling object handling's purpose. In detail, the bridge frame 1 capable of transversely and reciprocally moving along the transverse moving steel rail 5 drives the lifting component to move right above the lifted object, the lifting component vertically descends to enable the lifting beam 4 to vertically move downwards to the sucker component to be connected with the lifted object, the sucker component automatically sucks the lifted object, then the lifted object is driven to ascend by the lifting component, and then transversely moves to the upper part of the preset storage position under the driving of the bridge frame 1, the lifting component drives the lifting beam 4 to vertically move downwards to the lifted object to be placed at the preset storage position, and at the moment, the sucker component loosens the lifted object, so that the lifted object is lifted. The embodiment provides a precast pile production with hoist equipment simple structure, easy and simple to handle to need not the manual work at handling in-process and connect the operation, degree of automation is high, labour saving and time saving.

As shown in fig. 3, further, the sucking disc subassembly includes vacuum chuck and electromagnetic chuck, vacuum chuck and electromagnetic chuck all include sucking disc 8, vacuum chuck and electromagnetic chuck set up in hoist beam 4 at intervals in proper order, vacuum chuck is used for handling fashioned precast pile, electromagnetic chuck is used for the handling to weave good steel reinforcement cage, through vacuum chuck and electromagnetic chuck of interval arrangement in proper order for the sucking disc subassembly can adapt to different by the handling object, required different handling demands when facing precast pile production, the sucking disc subassembly can avoid changing the suction head through the manual work and adapt to different by the handling object, labour saving and time saving.

In detail, in the production process of the precast pile, the hoisting equipment is required to hoist the precast pile which is prefabricated and formed from the die to a preset storage position, and the braided reinforcement cage is required to be hoisted into the die. For prefabricated molded precast pile, because dead weight is big and the steel reinforcement cage is placed in the concrete inside, electromagnetic chuck can't carry out effectual absorption to it, and prefabricated molded precast pile's upper surface is a complete plane, can carry out effectual absorption to it through vacuum chuck. For the woven reinforcement cage, the vacuum chuck can not effectively adsorb the woven reinforcement cage due to the fact that the woven reinforcement cage is composed of discrete longitudinal ribs and stirrups, and the longitudinal ribs and the stirrups are made of steel, so that the electromagnetic chuck can effectively adsorb the woven reinforcement cage. To sum up, in the process of lifting the woven reinforcement cage into the mold, the electromagnetic chuck of the chuck assembly is started to effectively adsorb the reinforcement cage, and in the process of lifting the prefabricated pile prefabricated and formed from the mold to the preset storage position, the vacuum chuck of the chuck assembly is started to effectively adsorb the prefabricated pile after being formed. Aiming at two different lifted objects, the lifting equipment can effectively adsorb the different lifted objects without replacing the sucker component, thereby saving time and labor.

Preferably, the shape of the lower side of the suction cup 8 of the vacuum suction cup is matched with the shape of the part of the outer surface of the part of the precast pile, in detail, when the precast pile is a tubular pile, the shape of the lower side of the suction cup 8 is an arc matched with the tubular pile, when the precast pile is a square pile, the shape of the lower side of the suction cup 8 is a plane or bending surface matched with the square pile, and when the precast pile is a special-shaped pile, the shape of the lower side of the suction cup 8 is a special-shaped surface matched with the part of the outer surface of the special-shaped pile.

As shown in fig. 7 and 8, further, the lifting assembly is provided with a control assembly, a lifting power source 3 and a lifting rod 31 capable of vertically and reciprocally moving, the control assembly comprises an encoder 33 mounted on the lifting assembly and provided with a gear 34, the lifting rod 31 is provided with a rack 32 meshed with the gear 34, the encoder 33 is electrically connected with the lifting power source 3, the lifting power source 3 is one of an air cylinder and a hydraulic cylinder, preferably, the lifting power source 3 is the hydraulic cylinder, and the output end of the lifting power source 3 is connected with the lifting rod 31. In the lifting process of the hanging beam 4, the lifting rod 31 drives the rack 32 to move vertically, so that the gear 34 is driven to rotate, the encoder 33 is used for recording the rotated angle of the gear 34, so that the vertical height of the lifting rod 31 is judged, the height of the hanging beam 4 is determined according to the vertical height of the lifting rod 31, the encoder 33 converts a height signal of the hanging beam 4 into an electric signal and transmits the electric signal to the lifting power source 3, after the hanging beam 4 moves to the preset vertical height, the lifting power source 3 stops outputting power, and then the hanging beam 4 is fixed to the preset vertical height, so that the purpose of accurately controlling the vertical height of the hanging beam 4 is achieved through the steps.

As shown in fig. 1, further, a flexible connection 9 is provided between the lifting beam 4 and the lifting assembly. Specifically, the lifting beam 4 is connected to one end of the flexible connecting piece 9, and the lifting rod 31 is connected to the other end, so that the vertical height of the lifting rod 31 cannot change due to shaking of the lifting beam 4 or a lifted object, and shaking of the lifting beam 4 or the lifted object cannot be transmitted to the lifting rod 31, so that the stability of the lifting process is improved. The specific form of the flexible connecting member 9 is not limited, and may be one or more of a chain, a telescopic tube and a steel cable, or may be other forms of flexible members, preferably a chain and a steel cable.

As shown in fig. 1 and 2, further, the bridge 1 is provided with a traversing power source 6, and the output end of the traversing power source 6 is connected with traversing rollers 61 which are arranged on the bridge 1 and are matched with the traversing steel rails 5. Specifically, the traversing power source 6 drives the traversing roller 61 to rotate, and the traversing roller 61 is matched with the traversing rail 5, so that the bridge frame 1 slides on the traversing rail 5 to drive the hanging beam 4 or the lifted object adsorbed on the hanging beam 4 to move transversely, so that the transverse position of the hanging beam 4 or the lifted object adsorbed on the hanging beam 4 is changed. The traversing power source 6 can be any one of an electric motor, a hydraulic motor and a pneumatic motor.

As shown in fig. 1 and 4, further, the bridge 1 is provided with a longitudinal moving mounting seat 2, the lifting assembly is connected to the longitudinal moving mounting seat 2, the longitudinal moving mounting seat 2 is provided with a longitudinal moving power source 22, and an output end of the longitudinal moving power source 22 is connected with a longitudinal moving roller 21 which is arranged on the longitudinal moving mounting seat 2 and is matched with the longitudinal moving rail 15 on the bridge 1. Specifically, the longitudinal moving force source 22 drives the longitudinal moving roller 21 to rotate, and the longitudinal moving roller 21 is matched with the longitudinal moving rail 15, so that the longitudinal moving installation seat 2 slides on the longitudinal moving rail 15, and further drives the hanging beam 4 to longitudinally move, so that the hanging beam 4 faces to objects to be lifted with different sizes, and the longitudinal center position of the hanging beam 4 can be moved to coincide with the longitudinal center position of the objects to be lifted, thereby avoiding the eccentric condition in the lifting process. In addition, the longitudinal movement force source 22 can also drive the lifting beam 4 and the lifted object on the lifting beam to change the longitudinal position, so that the movable range of the lifted object is enlarged.

As shown in fig. 6, further, the vacuum chuck includes the vacuum pump installed in the hanging beam 4, the branch pipe case that communicates with the vacuum pump, be provided with the connecting air pipe with the sucking disc 8 one-to-one of vacuum chuck subassembly, connecting air pipe intercommunication has solenoid valve 82, solenoid valve 82 intercommunication has switching-over valve 81, switching-over valve 81 intercommunication sucking disc 8, start the vacuum pump, with the evacuation in the branch pipe case, after the sucking disc 8 of vacuum chuck subassembly hugs closely the fashioned precast pile surface, open solenoid valve 82, can make the sucking disc 8 of vacuum chuck subassembly adsorb fashioned precast pile, and when need loosen fashioned precast pile, only need close solenoid valve 82 and open switching-over valve 81 can aerify for the sucking disc 8 of vacuum chuck subassembly, make the sucking disc 8 of vacuum chuck subassembly break away from with fashioned precast pile.

Further, the electromagnetic suction cup can generate electromagnetic suction force when being electrified to adsorb the reinforcement cage, and after the power is off, the electromagnetic suction force disappears to loosen the reinforcement cage. The specific structure of the electromagnetic chuck is mature prior art, and excessive redundant description is not carried out on the specific structure of the electromagnetic chuck.

As shown in fig. 3, further, the suction cup assembly further includes a buffer assembly disposed between the hanging beam 4 and the suction cup 8, and the buffer assembly can buffer the impact force between the suction cup 8 and the lifted object, so that the lifting device is less prone to damage.

Further, as shown in fig. 3, the buffer assembly includes a fixed bottom plate 75 fixed to the hanging beam 4, a sliding column 71 movably mounted to the hanging beam 4, a mounting plate 72, and an elastic member 74 wound around the sliding column 71; one end of the elastic member 74 is provided on the fixed bottom plate 75, the other end of the elastic member 74 is provided on the mounting plate 72, and the slide column 71 is provided with a limit nut 73 for abutting against the mounting plate 72; the sucking disc 8 is fixed in the bottom of sliding column 71, and mounting panel 72 is connected into a whole with sliding column 71 through mode such as spiro union, welding, bonding, and the like fixed connection, and when sucking disc 8 bore the impact, sliding column 71 is along hanging beam 4 gliding to lead to mounting panel 72 to follow sliding column 71 gliding extrusion elastic component 74, turn into elastic potential energy with the part of the impact that sucking disc 8 bore, avoid the impact directly to act on hanging beam 4, increase hanging beam 4's life. The limit nut 73 is used to limit the sliding range of the sliding post 71, and when the sliding post 71 is at the maximum sliding range, the mounting plate 72 abuts against the limit nut 73 to limit the sliding range of the sliding post 71.

Further, as shown in fig. 3, the two lateral sides of the hanging beam 4 are provided with first detecting pieces 10, the two vertical sides of the hanging beam 4 are provided with second detecting pieces, the first detecting pieces 10 are electrically connected with the traversing power source 6, and the second detecting pieces are electrically connected with the lifting power source 3; the first detection piece 10 and the second detection piece are both photoelectric sensors and are used for detecting obstacles, in the process of transversely moving the hanging beam 4, the first detection piece 10 is used for detecting whether the obstacle exists on one side of the transverse moving direction of the hanging beam 4, and when the obstacle exists, the first detection piece 10 transmits an electric signal to the transverse moving power source 6, so that the transverse moving power source 6 stops outputting power and stops suddenly, and accidents caused by collision are avoided. The second detecting piece is used for detecting whether the two vertical sides of the hanging beam 4 are provided with barriers, the second detecting piece is used for detecting whether one side of the vertical moving direction of the hanging beam 4 is provided with barriers, when the barriers are provided, the second detecting piece transmits electric signals to the lifting power source 3, the lifting power source 3 stops outputting power and stops suddenly, and accidents caused by collision are avoided.

Further, a weight sensor is arranged between the hanging beam 4 and the lifting assembly, and the weight sensor is electrically connected with the lifting power source 3; the weight sensor is used for detecting the total weight of the hanging beam 4 and the lifted object connected to the hanging beam 4, judging whether the lifting power source 3 in the lifting assembly is overloaded, determining the acceleration during lifting by the lifting power source 3 according to the total weight of the hanging beam 4 and the lifted object connected to the hanging beam 4, adopting smaller acceleration when the total weight of the hanging beam 4 and the lifted object connected to the hanging beam 4 is heavier, avoiding overload of the lifting power source 3 caused by applying excessive acceleration, adopting larger acceleration when the total weight of the hanging beam 4 and the lifted object connected to the hanging beam 4 is lighter, lifting the lifting speed and saving time.

Further, as shown in fig. 9, a weight sensor is arranged between the hanging beam 4 and the lifting component, the hanging beam 4 is at least provided with self-locking components at two sides in the longitudinal direction, the self-locking components comprise a self-locking drive 12 and clamping jaws 14 connected with the self-locking drive 12, the self-locking drive 12 is electrically connected with the weight sensor, when the weight detected by the weight sensor is obviously greater than the total weight of the hanging beam 4, the weight sensor transmits a signal to the self-locking drive 12, the self-locking drive 12 drives the two clamping jaws 14 to be close to each other, the two closed clamping jaws 14 enclose to form a clamping space, and a lifted object is placed in the clamping space. Even if the sucker component fails, the clamping jaw 14 can still prevent the safety accident caused by falling of the lifted object to support the lifted object, so that the safety performance of the lifting system is improved.

As shown in fig. 1, further, the bridge 1 is provided with an operation chamber 11, an electric control cabinet is arranged in the operation chamber 11, the electric control cabinet is electrically connected with the transverse moving power source 6, the longitudinal moving power source 22, the lifting assembly and the sucker assembly, an operator is positioned in the operation chamber 11, and the electric control cabinet is used for controlling the starting and stopping of the transverse moving power source 6, the longitudinal moving power source 22, the lifting power source 3, the electromagnetic sucker and the vacuum sucker, so that automatic operation is realized, and the operation is simple and convenient.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

Claims (10)

1. The hoisting equipment for precast pile production is characterized by comprising a bridge frame capable of transversely and reciprocally moving along a transverse moving steel rail and a connecting mechanism which is arranged on the bridge frame and can vertically and reciprocally move;

the connecting mechanism comprises a lifting assembly arranged on the bridge frame, a lifting beam connected with the lifting assembly, and a plurality of sucker assemblies which are sequentially arranged on the lifting beam at intervals and can be connected with objects to be lifted.

2. A lifting device for precast pile production according to claim 1, wherein the suction cup assembly comprises a vacuum suction cup and an electromagnetic suction cup, the vacuum suction cup and the electromagnetic suction cup comprise suction cups, and the vacuum suction cup and the electromagnetic suction cup are sequentially arranged on the lifting beam at intervals.

3. A lifting device for producing precast piles according to claim 1, wherein the lifting assembly is provided with a control assembly, a lifting power source and a lifting rod capable of vertically reciprocating, the control assembly comprises an encoder which is arranged on the lifting assembly and provided with a gear, the lifting rod is provided with a rack which is meshed with the gear, and the encoder is electrically connected with the lifting power source.

4. A hoisting device for precast pile production as claimed in claim 1, characterized in that a flexible connecting piece is arranged between the hoisting beam and the lifting assembly;

the flexible connecting piece comprises at least one of a chain, a telescopic cylinder and a steel cable.

5. A hoisting device for precast pile production according to claim 3, characterized in that the bridge is provided with a traversing power source, and the output end of the traversing power source is connected with traversing rollers which are arranged on the bridge and are matched with the traversing steel rails;

and/or, the bridge frame is provided with a longitudinal movement mounting seat, the lifting assembly is connected with the longitudinal movement mounting seat, the longitudinal movement mounting seat is provided with a longitudinal movement power source, and the output end of the longitudinal movement power source is connected with a longitudinal movement roller which is arranged on the longitudinal movement mounting seat and is matched with a longitudinal movement track on the bridge frame.

6. A hoisting device for producing precast piles according to claim 2, wherein the vacuum suction cup comprises a vacuum pump mounted on the hanging beam and a branch pipe box communicated with the vacuum pump, the branch pipe box is provided with connecting air pipes corresponding to suction cups of the vacuum suction cup assembly one by one, the connecting air pipes are communicated with electromagnetic valves, the electromagnetic valves are communicated with reversing valves, and the reversing valves are communicated with the suction cups.

7. A lifting device for producing precast piles according to claim 2, wherein the suction cup assembly further comprises a buffer assembly disposed between the hanging beam and the suction cup.

8. A hoisting device for producing precast piles according to claim 7, wherein the buffer assembly comprises a fixed bottom plate fixed on the hanging beam, a sliding column movably mounted on the hanging beam, a mounting plate and an elastic piece wound around the sliding column;

one end of the elastic piece is arranged on the fixed bottom plate, the other end of the elastic piece is arranged on the mounting plate, and the sliding column is provided with a limit nut for abutting against the mounting plate.

9. A hoisting device for precast pile production according to claim 5, wherein first detecting members are arranged on two lateral sides of the hanging beam, second detecting members are arranged on two vertical sides of the hanging beam, the first detecting members are electrically connected with the traversing power source, and the second detecting members are electrically connected with the lifting power source;

and/or a weight sensor is arranged between the hanging beam and the lifting assembly, and the weight sensor is electrically connected with the lifting power source;

and/or a weight sensor is arranged between the hanging beam and the lifting assembly, at least two sides of the hanging beam in the longitudinal direction are provided with self-locking assemblies, each self-locking assembly comprises a self-locking drive and a clamping jaw connected with the self-locking drive, and the self-locking drive is electrically connected with the weight sensor.

10. A lifting device for precast pile production according to claim 9, wherein the bridge is provided with an operation chamber, and an electric control cabinet is arranged in the operation chamber, and the electric control cabinet is electrically connected with the traversing power source, the longitudinal moving power source, the lifting assembly and the sucking disc assembly.