CN218953326U - Two lining cloth machineshop car - Google Patents

Abstract

The utility model relates to a two-lining material-distributing engineering vehicle, which comprises a vehicle, a hopper, a pump material assembly and a material-distributing arm assembly, wherein the hopper is arranged on the vehicle; wherein: the hopper and the pump assembly are arranged on a chassis of the vehicle, a main beam is arranged at the longitudinal position of the chassis, and the distributing arm assembly is borne by the distributing trolley and can walk on the main beam to finish the task of section-by-section window-by-window distribution. The matched carrier vehicle can independently walk on the construction site, is convenient for the switching movement of the segments and the transition operation, and has good maneuverability.

Description

Two lining cloth machineshop car

Technical field:

the utility model belongs to the field of engineering machinery equipment, and particularly relates to a two-lining material distribution engineering vehicle, which can finish a window division material distribution scheme of a mark section on a stop station.

The background technology is as follows:

the existing concrete pump truck is quite popular in building construction industry, is convenient to move, and the freedom degree of the vehicle-mounted distributing arm can meet the distribution requirements of different stations. The tunnel is used as a special building type, a window-dividing material distribution mode is adopted, a scheme capable of translating and overturning to the left side and the right side is required, the tunnel is carried by a two-lining trolley and can only move on a working section, and long-distance transfer cannot be realized. Such as:

CN202221037327.2 discloses a multifunctional window dividing and distributing machine, comprising a frame assembly, cantilevers at two sides of the frame assembly, and distributing pipes supported by the cantilevers; wherein, be provided with the cushion cap car that can reciprocating motion on the frame assembly, bear the weight of the cloth pipe and get into two lining trolley spaces by the cushion cap car, accomplish the window cloth of dividing.

And CN202221560129.4, a two-lining trolley travelling device is disclosed, comprising two parallel stringers carrying a door beam assembly, a jacking assembly and a travelling assembly; the lifting assembly lifts the longitudinal beam and forms a support, the walking assembly is used for driving the longitudinal beam to walk, and the door beam assembly is moved; wherein: the walking assembly comprises rollers, a supporting seat, a motor and a driving chain; the supporting seat and the idler wheels are separated at the bottom of the longitudinal beam to form a support for grounding the longitudinal beam, wherein the idler wheels are directly arranged at the bottom of the longitudinal beam, and the supporting seat is supported on a linear guide rail at the bottom of the longitudinal beam through a roll shaft; the motor is arranged on the supporting seat and is in transmission connection with the driving chain, the driving chain is a sprocket chain or a gear rack, and the motor drives the longitudinal beam to move relative to the supporting seat. Only the stepwise movement of the stringers over the benchmarks or stations is completed.

How to provide a technical scheme for combining the advantages of the two engineering equipment is the object of the research of the utility model.

The utility model comprises the following steps:

the utility model aims to design a two-lining material distribution engineering vehicle which is suitable for tunnel window distribution and has strong maneuverability and is not limited to movement of engineering standard sections.

The technical scheme of the utility model is realized as follows: the utility model provides a two lining cloth machineshop car, includes vehicle, hopper, pump material assembly and cloth arm assembly, its characterized in that: a main beam is arranged on the chassis longitudinal position of the vehicle, a distribution trolley driven by a power mechanism is arranged on the main beam in a sliding way, a distribution arm assembly is arranged on the distribution trolley, a concrete pipe in the distribution arm assembly is connected with a hopper arranged at the head of the vehicle, and pumping pressure is provided by a pumping assembly arranged on the vehicle; the cloth arm assembly comprises a longitudinal folding arm capable of being unfolded longitudinally, a transverse folding arm capable of being unfolded transversely and a cloth arm; the longitudinal folding arm is arranged between the first side surface of the cloth trolley and the vehicle and changes along with the longitudinal movement of the cloth trolley; the transverse folding arm is arranged on the second side surface of the cloth trolley, is driven by the supporting cylinder to unfold and fold, and forms a suspended support; the cloth arm is arranged at the end part of the transverse folding arm and is suspended in the space of the main beam in the same direction.

The section of the main beam is of a rectangular structure, the top surface of the main beam is provided with a bearing rail, and torsion rails are arranged on two sides of the main beam; the upper part of the distribution trolley is provided with a bearing roller, and torsion rollers are arranged on two sides of the distribution trolley and are erected on the bearing rail by means of the bearing roller, and the torsion rollers are clamped on the torsion rail.

The transverse folding arm comprises a first arm, a second arm and a third arm which are connected in sequence in a swinging way; the first arm can be positioned on the second side surface of the cloth trolley in a swinging way, and the end part of the third arm is positioned on the cloth arm; the first arm and the cloth workshop, the first arm and the second arm, and the second arm and the third arm are respectively provided with an independently controlled supporting cylinder, and the adjusting combination of the supporting cylinders can enable the transverse folding arm to be unfolded to be close to the horizontal suspension and fold the cloth arm to one side of the first side surface of the cloth trolley.

The material distribution trolley is provided with a lifting platform driven by a lifting cylinder, and the material distribution arm assembly is positioned on the lifting platform; two vertical guide grooves are respectively formed in two side surfaces of the distribution trolley, and plate edge rails of support columns on two sides of the lifting platform are arranged in the vertical guide grooves to form sliding constraint; the lifting cylinder is arranged on the distribution trolley, and the plunger end is jacked on the lifting platform.

The cloth arm is connected with the third arm, a moving pipe is sleeved in a sliding mode, a balancing weight is fixed at the end of the moving pipe, and a moving cylinder is arranged between the moving pipe and the cloth arm and drives the moving pipe and the balancing weight to move outwards.

The power mechanism has one of the following structures: 1. the motor and the gearbox are arranged at one end of the main beam and are in transmission connection with one chain wheel, the other chain wheel is arranged at the other end of the main beam, the chain bypassing the two chain wheels is connected with the distribution trolley, and the distribution trolley is driven by the chain to walk along the main beam; 2. the motor and the gearbox are arranged on the distribution trolley and are in transmission connection with a gear arranged on the distribution trolley, the gear is meshed with a rack arranged on the main beam, and the distribution trolley is driven by the gear to walk along the main beam; 3. the winch, the motor and the gearbox are arranged at one end of the main beam and are in transmission connection with one winch roller, the other winch roller is arranged at the other end of the main beam, steel ropes bypassing the two winch rollers are connected with the distributing trolley, and the distributing trolley is pulled by the steel ropes to walk along the main beam.

The central positions of the front end and the rear end of the chassis of the vehicle are respectively provided with an upright post for supporting and fixing a main beam, and an engine unit, a pumping oil cylinder and a hopper hung at one end of the head of the vehicle are arranged in the space of the lower part of the main beam; a cab with a direction capable of being changed and a narrow-gauge track which is longitudinally distributed are arranged on a chassis at one side of a first side surface of the distribution trolley, a travelling trolley is arranged on the narrow-gauge track in a sliding manner, and the travelling trolley is driven by a driving cylinder arranged between the chassis and the travelling trolley to move along the narrow-gauge track; the cab is supported by a slewing bearing arranged on the travelling trolley and can rotate along with the slewing bearing to change the driving direction.

The narrow-gauge track comprises two circular tubes and a steel beam, wherein a plurality of connecting steel plates are welded between the two circular tubes which are distributed in parallel, the lower parts of the connecting steel plates are welded on the steel beam, and then the steel beam is locked on the chassis; the travelling trolley is provided with double-row grooved wheels in an up-down structure, and the double-row grooved wheels are clamped on the upper surface and the lower surface of a circular tube of the narrow-gauge track to form an anti-drop rolling support.

The upper part of the slewing bearing on the walking trolley is provided with a bearing arm, and the far end of the bearing arm is suspended with a cab.

Two transverse channels are respectively arranged at two ends of the chassis, and the two transverse channels are adjacently arranged and are opposite to each other; a cross beam with supporting legs is slidably arranged in each transverse channel, an extension cylinder is arranged between the cross beam and the cavity bottom of the channel, and the extension cylinder drives the cross beam to extend and retract with the supporting leg ends; the supporting legs are vertically arranged at the end parts of the cross beams, lifting cylinders are arranged in the supporting legs, and foot pads are fixed at the end parts of piston rods of the lifting cylinders.

The utility model has the advantages of unique conception, reasonable structure the cloth range is large; particularly, the distribution arms can distribute materials one by one on the two sides and the top in the most half circumference under the action of each supporting cylinder, and can finish the whole scale section pouring under the transportation of the travelling trolley; the matched carrier vehicle can independently walk on the construction site, is convenient for the switching movement of the segments and the transition operation, and has good maneuverability.

Description of the drawings:

the utility model is further described with reference to the following specific drawings:

FIG. 1 is a schematic view showing a two-lining cloth engineering vehicle in an unfolded state

FIG. 2 is an enlarged schematic view of part of the A in FIG. 1

FIG. 3 is an enlarged schematic view of part of B in FIG. 1

FIG. 4 is a schematic view of a rear corner of a two-lining cloth-covered engineering truck

FIG. 5 is an enlarged schematic view of part of the portion C of FIG. 4

FIG. 6 is an enlarged schematic view of part of D in FIG. 4

FIG. 7 is an enlarged schematic view of the portion E of FIG. 4

FIG. 8 is a schematic diagram of a front view of a two-lining cloth project

FIG. 9 is F in FIG. 8 schematic diagram of partial enlargement

FIG. 10 is a front view of a two-lining cloth engineering truck

FIG. 11 is a schematic view showing a folding state of a two-lining cloth engineering truck

FIG. 12 is a schematic view of a portion of a work vehicle

FIG. 13 is a partially exploded view of a work vehicle

FIG. 14 is an enlarged schematic view of a portion of the G of FIG. 13

FIG. 15 is an enlarged partial schematic view of H in FIG. 13

Wherein the method comprises the steps of

1-vehicle 11-chassis 111-transverse channel 112-cross beam

113-support foot 114-extension cylinder 115-jacking cylinder

116-foot pad 12-upright post 13-narrow gauge track

131-round tube 132-steel beam 133-connecting steel plate

14-wheel

2-hopper

3-pump assembly 31-pump oil cylinder

4-cloth arm Assembly 41-longitudinal folding arm 42-transverse folding arm 421-first arm

422-second arm 423-third arm 43-cloth arm

431-moving pipe 432-balancing weight 433-moving cylinder

44-support cylinder

5-main beam 51-lining support plate 52-bearing rail 53-torsion rail

6-cloth trolley 61-bearing roller 62-torsion roller 63-lifting cylinder

64-lifting platform 641-plate edge rail 65-erection guide groove

7-power mechanism 71-motor 72-sprocket 73-chain

8-cab 81-travelling trolley 811-slewing bearing 812-grooved pulley

813-support arm 82-drive cylinder

Detailed description of the preferred embodiments the mode is as follows:

referring to fig. 1 to 11, a two-lining material-distributing engineering vehicle comprises a vehicle 1, a hopper 2, a pump material assembly 3 and a material-distributing arm assembly 4; a main beam 5 is arranged on a longitudinal position of a chassis 11 of the vehicle, a distribution trolley 6 driven by a power mechanism 7 is arranged on the main beam 5 in a sliding manner, and a distribution arm assembly 4 is arranged on the distribution trolley 6. The hopper 2 is arranged at the head part of the chassis 11, the pumping assembly 3 is arranged in the space below the main beam 5, and pumping pressure is provided by the vehicle-mounted pressure station to pump concrete to the concrete pipe 45 in the distributing arm assembly 4. That is, the concrete pipe 45 in the distributing arm assembly 4 is connected to the hopper 2 provided at the head of the vehicle, and the pumping pressure is provided by the pump assembly 3 provided on the vehicle. The pumping assembly 3 comprises a pressure station and a pumping cylinder 31.

A cloth arm assembly 4 comprising a longitudinal folding arm 41 which can be unfolded longitudinally, a transverse folding arm 42 which can be unfolded transversely and a cloth arm 43; the longitudinal folding arm 41 is arranged between the first side surface of the cloth trolley 6 and the vehicle chassis 11, and is unfolded or folded along with the longitudinal movement of the cloth trolley 6; the transverse folding arm 42 is arranged on the second side surface of the cloth trolley 6, is driven by the supporting cylinder 44 to unfold and fold, and forms a suspension support; the cloth arm 43 is disposed at the end of the transverse folding arm 42 and is suspended in the space of the main beam 5 in the same direction, and can move along the main beam direction to complete the cloth operation.

More specifically, the transverse folding arm 42 for finishing the cloth of the left and right sides and the top large semicircular arc space includes a first arm 421, a second arm 422 and a third arm 423 which are connected in turn swingably; the first arm 421 is swingably positioned on the second side of the cloth carriage 6, and the end of the third arm 423 positions the cloth arm 43; an independently controlled support cylinder 44 is arranged between the first arm 421 and the cloth trolley 6, between the first arm 421 and the second arm 422, and between the second arm 422 and the third arm 423, and the adjustment combination of the support cylinders 44 can enable the transverse folding arm 42 to be unfolded and nearly horizontally suspended, and fold and cloth the cloth arm 43 to one side of the first side surface of the cloth trolley 6.

The connecting end of the material distributing arm 43 and the third arm 423 is sleeved with a moving pipe 431 in a sliding manner, a balancing weight 432 is fixed at the end part of the moving pipe 431, and a moving cylinder 433 is arranged between the moving pipe 431 and the material distributing arm 43; in operation, the movable tube 431 and the counterweight 432 are driven to move outwards by the movable cylinder 433 so as to balance the weight formed after the feeding of the feeding tube 43, thereby effectively avoiding the sagging of the feeding head.

The power mechanism 7 has the following structure:

1. the motor 71 and the chain wheel and chain combination, the motor 71 and the gear box module are arranged at one end of the main beam 5 and are in transmission connection with one chain wheel 72, the other chain wheel 72 is arranged at the other end of the main beam, a chain 73 bypassing the two chain wheels 72 is connected with the distribution trolley 6, and the distribution trolley 6 is driven by the chain 73 to walk along the main beam, as shown in fig. 2, 3 and 7. This is also the best solution, with lower costs and reliable power transmission. In order to prevent the chain 73 from sagging, a susceptor plate 51 is intermittently provided on the main girder 5 to support the sagging chain 73.

2. The motor 71 and the gear rack are combined, the motor 71 and the gearbox module are arranged on the distribution trolley 6 and are connected with a gear arranged on the distribution trolley 6 in a transmission manner, the gear is meshed with a rack arranged on the main beam 5, and the distribution trolley 6 is driven by the gear to walk along the main beam. The illustration is omitted for the conventional driving scheme.

3. The winch, the motor 71 and the gear box module are arranged at one end of the main beam 5 and are in transmission connection with one winch roller, the other winch roller is arranged at the other end of the main beam 5, steel ropes bypassing the two winch rollers are connected with the distributing trolley 6, and the distributing trolley 6 is pulled by the steel ropes to walk along the main beam. Like the chain scheme, illustrations are omitted.

Further, the section of the main beam 5 is of a rectangular structure, the top surface is provided with a bearing rail 52, and torsion rails 53 are arranged on two sides of the bearing rail; the upper part of the cloth trolley 6 is provided with a bearing roller 61, two sides of the cloth trolley are provided with torsion rollers 62, the cloth trolley is erected on the bearing rail 52 by the bearing roller 61, and the torsion rollers 62 are clamped on the torsion rail 53. By the design of the torsion rail 53, the torsion resistance of the distribution trolley 6 is improved, and the distribution trolley walks more smoothly, as shown in fig. 3 and 5.

The lifting platform 64 driven by the lifting cylinder 63 is arranged on the material distribution trolley 6, the material distribution arm assembly 4 is positioned on the lifting platform 64, the lifting platform 64 can lift the material distribution trolley during operation, the whole height can be reduced during transition movement, and the passing rate is improved; more specifically, two vertical guide grooves 65 are respectively arranged on two side surfaces of the distribution trolley 6, and plate edge rails 641 of support columns on two sides of the lifting platform 64 are arranged in the vertical guide grooves 65 to form sliding constraint; a lifting cylinder 63 arranged on the distribution trolley 6, a plunger end is propped against a lifting platform 64, providing lifting power as shown in fig. 5 and 9.

Design of the vehicle part:

referring to fig. 1, and 12 to 15, a front and rear end central position of a chassis 11 of a vehicle are each provided with a column 12 for supporting a fixed main beam, as shown in fig. 1; an engine unit, a pressure station, a pumping cylinder 31 and a hopper 2 hung at one end of a headstock are arranged in the lower space of the main beam 5; wherein the engine block and the pressure station are sources of common electrical and oil pressure. A cab 8 with a direction capable of being changed and a narrow-gauge track 13 which is longitudinally distributed are arranged on a chassis 11 at one side of a first side surface of a distribution trolley 6, a travelling trolley 81 is arranged on the narrow-gauge track 13 in a sliding manner, and the travelling trolley is driven to move along the narrow-gauge track 13 by a driving cylinder 82 arranged between the chassis 11 and the travelling trolley 81; the cab 8 is supported by a slewing bearing 811 arranged on the travelling trolley 81, can rotate along with the slewing bearing 811, and turns the driving direction, thereby being convenient for turning around; the narrow gauge track 13 can be used for turning from the head to the tail, which is beneficial for the driver to observe conditions. The chassis 11 is provided with wheels 14 back and forth for movement over the work site and for transitional travel.

Further, the narrow gauge track 13 comprises two circular tubes 131 and a steel beam 132, a plurality of connecting steel plates 133 are welded between the two circular tubes 131 which are distributed in parallel, the lower parts of the connecting steel plates 133 are welded on the steel beam 132, and then the steel beam 132 is locked on the chassis 11, so that a scheme with small occupied space is formed; the travelling trolley 81 is provided with double-row grooved wheels 812 with an up-down structure, and the double-row grooved wheels 812 are clamped on the upper surface and the lower surface of the round tube 131 of the narrow-gauge track to form an anti-drop rolling support, so that the travelling safety on the narrow-gauge track is ensured, and the travelling trolley does not overturn.

The upper portion of the slewing bearing 811 on the travelling trolley 81 is provided with a supporting arm 813, and the cab 8 is suspended at the distal end of the supporting arm 813, so that the cab 8 can be suspended to a reasonable position of the head and the tail of the vehicle on the shorter narrow-gauge track 13, and the length of the driving cylinder 82 can be reduced.

Two transverse channels 111 are respectively arranged at two ends of the chassis 11, and the two transverse channels 111 are adjacently arranged and oppositely arranged, namely, the openings are distributed to two sides left and right; a beam 112 with supporting feet 113 is arranged in each transverse channel 111 in a sliding manner, an extension cylinder 114 is arranged between the beam 112 and the cavity bottom of the channel, and the extension cylinder 114 drives the beam 112 to extend and retract with the supporting feet; the supporting leg 113 is vertically disposed at an end of the beam 112, and a jacking cylinder 115 is disposed in the supporting leg 113, and a foot pad 116 is fixed at a piston rod end of the jacking cylinder 115 for supporting on the ground so as to increase an abutting area with the ground. In operation, the four beams 112 can be extended to expand the support area of the four support legs 113 and maintain the center of gravity of the vehicle within the range of the four support legs 113.

The supporting cylinder 44, the lifting cylinder 63, the driving cylinder 82, the extending cylinder 114, the jacking cylinder 115 and the moving cylinder 433 are all oil cylinders or air cylinders, and a vehicle-mounted pressure station correspondingly provides a high-pressure power source for a hydraulic station or a pneumatic station. In the application of a large-load environment, the hydraulic pressure is mainly adopted, and the structure is also unified as an oil cylinder; the corresponding cylinders are provided as equivalent alternatives.

Claims (10)

1. A two-lining cloth engineering vehicle, including vehicle (1), hopper (2), pump material assembly (3) and cloth arm assembly (4), its characterized in that: a main beam (5) is arranged on a chassis (11) of the vehicle along the longitudinal direction, a distribution trolley (6) driven by a power mechanism (7) is arranged on the main beam (5) in a sliding way, a distribution arm assembly (4) is arranged on the distribution trolley (6), a concrete pipe in the distribution arm assembly (4) is connected with a hopper (2) arranged at the head of the vehicle, and pumping pressure is provided by a pumping assembly (3) arranged on the vehicle (1); the cloth arm assembly (4) comprises a longitudinal folding arm (41) capable of being unfolded longitudinally, a transverse folding arm (42) capable of being unfolded transversely and a cloth arm (43); the longitudinal folding arm (41) is arranged between the first side surface of the cloth trolley (6) and the chassis (11) of the vehicle (1) and changes along with the longitudinal movement of the cloth trolley (6); the transverse folding arm (42) is arranged on the second side surface of the cloth trolley (6), is driven by the supporting cylinder (44) to unfold and fold, and forms a suspension support; the cloth arm (43) is arranged at the end part of the transverse folding arm (42) and is suspended in the same-direction space of the main beam (5).

2. The two-lining cloth engineering vehicle according to claim 1, the method is characterized in that: the section of the main beam (5) is of a rectangular structure, the top surface is provided with a bearing rail (52), and torsion rails (53) are arranged on two sides of the bearing rail; the upper part of the cloth trolley (6) is provided with a bearing roller (61), two sides of the cloth trolley are provided with torsion rollers (62), the cloth trolley is erected on the bearing rail (52) by means of the bearing roller (61), and the torsion rollers (62) are clamped on the torsion rail (53).

3. The two-lining cloth engineering vehicle according to claim 1, wherein: the transverse folding arm (42) comprises a first arm (421), a second arm (422) and a third arm (423) which are connected in sequence in a swinging way; the first arm (421) can be positioned on the second side surface of the cloth trolley (6) in a swinging way, and the end part of the third arm (423) is positioned on the cloth arm (43); an independently controlled supporting cylinder (44) is arranged between the first arm (421) and the cloth trolley (6), between the first arm (421) and the second arm (422) and between the second arm (422) and the third arm (423), and the adjusting combination of the supporting cylinders (44) can enable the transverse folding arm (42) to be unfolded and nearly horizontally suspended, and the cloth arm (43) is swung to one side of the first side face of the cloth trolley (6) to be folded.

4. A two-lining cloth machineshop truck as set forth in claim 1, 2 or 3, wherein: a lifting platform (64) driven by a lifting cylinder (63) is arranged on the material distribution trolley (6), and the material distribution arm assembly (4) is positioned on the lifting platform (64); two vertical guide grooves (65) are respectively formed in two side surfaces of the distribution trolley (6), and plate edge rails (641) of support columns on two sides of the lifting platform (64) are arranged in the vertical guide grooves (65) to form sliding constraint; is arranged on a distribution trolley lifting cylinder on 6) 63) the plunger end is jacked on a lifting platform (64).

5. A two-lining cloth machineshop truck according to claim 1 or 3, characterized in that: the connecting end of the material distributing arm (43) and the third arm (423) is sleeved with a moving pipe (431) in a sliding mode, a balancing weight (432) is fixed at the end portion of the moving pipe (431), a moving cylinder (433) is arranged between the moving pipe (431) and the material distributing arm (43), and the moving pipe (431) and the balancing weight (432) are driven to move outwards.

6. The two-lining cloth engineering vehicle according to claim 1, wherein: the power mechanism (7) has one of the following structures: 1. the motor (71) and the chain wheel and chain combination, the motor (71) and the gear box are arranged at one end of the main beam (5) and are connected with a chain wheel (72) in a transmission way, the other chain wheel (72) is arranged at the other end of the main beam (5), a chain (73) bypassing the two chain wheels is connected with the distribution trolley (6), and the distribution trolley (6) is driven by the chain (73) to walk along the main beam (5); 2. the motor and the gearbox are arranged on the distribution trolley (6) and are in transmission connection with a gear arranged on the distribution trolley (6), the gear is meshed with a rack arranged on the main beam (5), and the distribution trolley (6) is driven by the gear to walk along the main beam (5); 3. the winch, the motor and the gearbox are arranged at one end of the main beam (5) and are in transmission connection with one winch roller, the other winch roller is arranged at the other end of the main beam (5), steel ropes bypassing the two winch rollers are connected with the distributing trolley (6), and the distributing trolley (6) is pulled by the steel ropes to walk along the main beam (5).

7. The two-lining cloth engineering vehicle according to claim 1, wherein: the central positions of the front end and the rear end of a chassis (11) of the vehicle (1) are respectively provided with an upright post (12) for supporting and fixing a main beam (5), and an engine unit, a pumping oil cylinder (31) and a hopper (2) hung at one end of a vehicle head are arranged in the lower space of the main beam (5); a cab (8) with a direction capable of being changed and a narrow-gauge track (13) which is longitudinally distributed are arranged on a chassis (11) at one side of a first side surface of a distribution trolley (6), a travelling trolley (81) is arranged on the narrow-gauge track (13) in a sliding manner, and a driving cylinder (82) arranged between the chassis (11) and the travelling trolley (81) drives the travelling trolley to move along the narrow-gauge track (13); the cab (8) is supported by a slewing bearing (811) provided on the travelling trolley (81), and can rotate following the slewing bearing (811) to turn the driving direction.

8. The two-lining cloth engineering vehicle according to claim 7, wherein: the narrow-gauge track (13) comprises two circular tubes (131) and a steel beam (132), a plurality of connecting steel plates (133) are welded between the two circular tubes (131) which are distributed in parallel, the lower parts of the connecting steel plates (133) are welded on the steel beam (132), and then the steel beam (132) is locked on the chassis (11); the travelling trolley (81) is provided with double-row grooved wheels in an up-down structure, and the double-row grooved wheels are clamped on the upper surface and the lower surface of a round tube (131) of the narrow-gauge track (13) to form an anti-drop rolling support.

9. A two-lining cloth machineshop truck as set forth in claim 7 or 8, wherein: the upper part of the slewing bearing on the walking trolley (81) is provided with a bearing arm, and the far end of the bearing arm is suspended with a cab (8).

10. A two-lining cloth machineshop truck as set forth in claim 1 or 7, wherein: two ends of the chassis (11) are respectively provided with two transverse channels (111), and the two transverse channels (111) are adjacently arranged and are opposite to each other; a cross beam (112) with supporting feet is slidably arranged in each transverse channel (111), an extension cylinder (114) is arranged between the cross beam (112) and the cavity bottom of each channel, and the extension cylinder (114) drives the cross beam (112) to stretch and retract with the supporting feet; the supporting legs (113) are vertically arranged at the end parts of the cross beams (112), lifting cylinders (115) are arranged in the supporting legs (113), and foot pads (116) are fixed at the end parts of piston rods of the lifting cylinders (115).

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