CN217755451U

CN217755451U - Two lining platform trucks running gear

Info

Publication number: CN217755451U
Application number: CN202221560129.4U
Authority: CN
Inventors: 丁达兴
Original assignee: Fujian Zhengfang Machinery Co ltd
Current assignee: Fujian Zhengfang Machinery Co ltd
Priority date: 2022-06-21
Filing date: 2022-06-21
Publication date: 2022-11-08
Anticipated expiration: 2032-06-21

Abstract

The utility model relates to a two-lining trolley traveling gear, which comprises two parallel longitudinal beams bearing a door beam assembly, a jacking assembly and a traveling assembly; lifting the longitudinal beam by the jacking assembly to form a support, driving the longitudinal beam to travel by the traveling assembly, and moving the position of the door beam assembly; wherein: the walking assembly comprises a roller, a supporting seat, a motor and a driving chain; the supporting seat and the roller are separately arranged at the bottom of the longitudinal beam to form a support for landing the longitudinal beam, wherein the roller is 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 roller shaft; the motor is arranged on the supporting seat and is connected with the driving chain in a transmission manner, the driving chain is a chain wheel chain or a gear rack, and the longitudinal beam is driven by the motor to move relative to the supporting seat. The utility model has the characteristics of ingenious conception, reliable driving and high efficiency; particularly, the chain or the rack is not restricted by the length, and can be driven in place at one time within the limit supporting range of the supporting seat, so that the lifting times and the moving times of the door beam assembly are greatly reduced.

Description

Two lining platform trucks running gear

The technical field is as follows:

the utility model belongs to the field of machinery, in particular to two lining platform truck running gear, especially adopt motor drive's scheme.

Background art:

construction such as modern tunnel, culvert leaves two lining platform trucks, can comparatively provide fast with the help of two lining platform trucks and strut and the buildding of inboard template, accomplishes the operation construction through the removal mode a lesson. The tradition is realized through laying the rail, because the tunnel excavation initial stage, often ground is mixed and disorderly, and it is time-consuming to mat formation, and rail transport intensity of labour is big.

Therefore, the industry later designs a scheme with oil cylinder driving, and a translation walking system is formed by supporting wheels and four jacking oil cylinders arranged at the front and the rear of a two-lining trolley. Although the problems can be solved, the moving time of the two-lining trolley is too long due to the restriction of the length of the oil cylinder, the condition that the up-down lifting frequency is large and the back-and-forth pushing and pulling oil cylinder frequency is large. If the stroke of the push-pull oil cylinder is simply lengthened, the bad phenomena of insufficient rigidity of the oil cylinder, easy bending deformation of the oil cylinder, cost increase and the like exist. Such as:

CN201910284074.5 discloses a self-walking steering type two-lining-template trolley and a walking steering method thereof, wherein the two-lining-template trolley comprises a matching moving support device, a walking device and a transverse moving device. The method comprises a step of forward straight movement or retreating of the two-lining template trolley and a step of transverse movement and steering in the tunnel, wherein the lengths of the four bearing bases and the lower end surface of a bottom beam are prolonged, so that the lower end surface of the bottom beam is lifted to simultaneously lift a front walking column, a rear walking column, a lengthened column seat or a steering connecting seat of the front walking column and the rear walking column until the front walking column leaves the ground, and the front walking column, the rear walking column, the lengthened column seat or the steering connecting seat of the rear walking column are moved forwards by a step pitch to land and then the two-lining template trolley is hydraulically moved.

How to provide a scheme that is not restricted by the hydro-cylinder, become the object of the utility model.

The invention content is as follows:

the utility model aims at designing a two lining platform trucks running gear which adopts a chain wheel chain or a gear rack driving structure.

The utility model discloses technical scheme realizes like this: a two-lining trolley traveling device comprises two parallel longitudinal beams bearing a door beam assembly, a jacking assembly and a traveling assembly; the jacking assembly and the walking assembly are arranged on the two longitudinal beams, the longitudinal beams are jacked up by the jacking assembly to form supports, and the walking assembly is used for driving the longitudinal beams to walk and moving the position of the door beam assembly; the method is characterized in that: the walking assembly comprises a roller, a supporting seat, a motor and a driving chain; the supporting seat and the roller are separately arranged at the bottom of the longitudinal beam to form a support for landing the longitudinal beam, wherein the roller is 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 roller shaft; the motor is arranged on the supporting seat and is connected with the driving chain in a transmission way; the driving chain is of one of the following structures: 1. the chain wheel is in transmission connection with the motor, and a chain meshed with the chain wheel is hung at the bottom of the longitudinal beam; 2. the gear rack structure is characterized in that a gear is in transmission connection with the motor, and a rack meshed with the gear is fixedly locked at the bottom of the longitudinal beam; the longitudinal beam is driven by the motor to move relative to the supporting seat.

Two parallel linear guide rails are arranged at the bottom of the longitudinal beam, and a chain or a rack is arranged between the two linear guide rails; the supporting seat is correspondingly provided with two roll shafts, the outer side of each roll shaft is also locked with a hanging plate, the upper end shaft of each hanging plate is positioned with a buckling roller, and the buckling roller is abutted to the upper edge of the longitudinal beam extending edge.

The supporting seat comprises herringbone legs and a motor seat, and a motor and a roller shaft are arranged on the motor seat; the herringbone feet are tightly attached to the vertical walls on the two sides of the motor base, two rows of through holes are correspondingly formed in the herringbone feet, the herringbone feet are fastened through penetrating bolts, and the height of the motor base can be adjusted relative to the herringbone feet.

The motor base in the supporting seat is of a horizontal T-shaped structure and is provided with a transverse seat and a longitudinal cantilever which are connected, through holes are formed in two sides of the transverse seat, and the roll shaft is positioned at the top of the transverse seat; the motor and the chain wheel or the gear are positioned on the longitudinal cantilever, and a buckling roller is also arranged on the longitudinal cantilever.

And the middle part of a roll shaft in the support seat is provided with a roll groove which is embedded on the linear guide rail.

The chain wheels positioned on the longitudinal cantilever are three, the main chain wheel is in transmission connection with the motor, the driven chain wheels are separately arranged on two sides of the main chain wheel, and the chain is wound through the upper chain teeth of the driven chain wheels and the lower chain teeth of the main chain wheels.

The driving chain adopts a double-row chain wheel and chain structure or a double-row gear and rack structure.

The utility model has the characteristics of ingenious conception, reasonable design, simple structure, reliable driving and high efficiency; particularly, the chain or the rack is not restricted by the length, and can be driven in place at one time within the limit supporting range of the supporting seat, so that the lifting times and the moving times of the door beam assembly are greatly reduced.

Description of the drawings:

the present invention will be further explained with reference to the following specific drawings:

FIG. 1 is a schematic view of a two-lined trolley

FIG. 2 is a partially enlarged view of A in FIG. 1

FIG. 3 is a schematic view showing the relationship between the longitudinal beam and the jacking assembly and the walking assembly

FIG. 4 is an enlarged view of a portion B of FIG. 3

FIG. 5 is a schematic view of the relationship elevation angle between the longitudinal beam and the jacking assembly and the walking assembly

FIG. 6 is an enlarged view of a portion C of FIG. 5

FIG. 7 is a schematic view of a support base of the walking assembly

FIG. 8 is an exploded view of a support seat of the walking assembly

Wherein

1-door beam assembly 2-longitudinal beam 21-linear guide rail 22-flared edge

3-jacking assembly 5-roller 6-supporting seat 61-roller shaft

611-roller groove 62-hanging plate 63-buckling roller 64-herringbone foot

65-motor base 651-transverse base 652-longitudinal cantilever 66-through hole

7-motor 8-driving chain 81-chain wheel 82-chain

The specific implementation mode is as follows:

referring to fig. 1 and 2, the two-lining trolley traveling device comprises two parallel longitudinal beams 2 for bearing a door beam assembly 1, a jacking assembly 3 and a traveling assembly; that is, the two parallel longitudinal beams 2 are integrated with the door beam assembly 1 and can move synchronously. The jacking assembly 3 and the walking assembly are both arranged on the two longitudinal beams 2, and the longitudinal beams 2 are jacked up by the jacking assembly 3 to form a support, so that the operations of supporting construction, cast-in-place and the like are realized by means of the door beam assembly 1; when the door beam assembly 1 moves, the jacking assembly 3 also acts, particularly the descending longitudinal beam 2 is switched to be supported by the walking assembly and driven to move. Namely, the longitudinal beam 2 is driven by the walking assembly to walk, so that the position of the door beam assembly 1 is moved. In the conventional design, the jacking assemblies 3 are separated at the two end parts of the longitudinal beam 2, so that a longer moving space can be avoided, the integrity of the longitudinal beam 2 can be maintained, and the welding processing is facilitated.

Referring to fig. 1 to 8, the walking assembly comprises a roller 5, a support seat 6, a motor 7 and a driving chain 8; the supporting seat 6 and the roller 5 are separated at the bottom of the longitudinal beam 2 to form a support for landing the longitudinal beam 2, wherein the roller 5 is directly installed at the bottom of the longitudinal beam 2, and the supporting seat 6 is supported on the linear guide rail 21 at the bottom of the longitudinal beam 2 through a roller shaft 61; i.e. driven by one end of the support 6, while the longitudinal beam 2 can push the roller 5 forward. The roller 5 is determined according to the weight of the door beam assembly 1, and can adopt a solid double-roller structure, thereby being capable of bearing, especially walking on uneven road surfaces and reducing fluctuation.

The motor 7 is arranged on the supporting seat 6 and is in transmission connection with the driving chain 8; the drive chain 8 has the following two structures:

1. the chain wheel and chain structure is characterized in that a chain wheel 81 is in transmission connection with the motor 7, and a chain 82 meshed with the chain wheel 81 is hung at the bottom of the longitudinal beam 2; the longitudinal beam 2 is driven by the motor 7 to move relative to the supporting seat 6. This example is just adopting sprocket chain structure, is double sprocket chain structure moreover to increase intensity.

In order to improve the reliability of the engagement of the chain wheel with the chain, three chain wheels 81 are positioned on the longitudinal cantilever 652, a main chain wheel in driving connection with the motor 7, and driven chain wheels are separated on both sides of the main chain wheel, and the chain is wound around the upper chain teeth of the driven chain wheels and the lower chain teeth of the main chain wheels, so that enough chain teeth are always engaged with the chain.

2. And the gear and rack structure is characterized in that a gear is in transmission connection with the motor, and a rack meshed with the gear is fixedly locked at the bottom of the longitudinal beam. For the reliability of meshing, a double-row gear rack structure is adopted. The rack and pinion structure is simpler and the illustration thereof is omitted.

Further, two parallel linear guide rails 21 are arranged at the bottom of the longitudinal beam 2, and the chain 82 or the rack is positioned between the two linear guide rails 21; two roll shafts 61 are correspondingly arranged on the supporting seat 6, and particularly, the coaxial arrangement is good; and the middle part of the roller shaft 61 is provided with a roller groove 611, and the roller groove 611 is embedded on the linear guide rail 21, so that the left-right drift can be avoided, and the walking stability is improved. A hanging plate 62 is further locked and fixed on the outer side of each roll shaft 61, a buckling roller 63 is positioned at the upper end of the hanging plate 62 in a shaft positioning mode, the buckling roller 63 abuts against the upper edges of the outwards-protruded outstretched edges 22 on the two sides of the longitudinal beam, the outward-protruded outstretched edges and the roll shafts 61 are used for holding the longitudinal beam 2 one by one, and the longitudinal beam 2 always follows when ascending and descending.

As shown in fig. 7 and 8, the supporting base 6 is composed of two parts, and the height adjustment can be realized by the supporting base, and comprises a herringbone leg 64 and a motor base 65, and the motor 7 and the roller shaft 61 are arranged on the motor base 65; the herringbone feet 64 are tightly attached to the vertical walls on the two sides of the motor base 65, two rows of through holes 66 are correspondingly formed in the herringbone feet, the herringbone feet are fastened through penetrating bolts, and the motor base 65 can be adjusted in height relative to the herringbone feet 64 so as to meet the requirements of different working conditions.

The motor seat 65 is in a horizontal T-shaped structure and is provided with a transverse seat 651 and a longitudinal cantilever 652 which are connected, through holes 66 are formed in two sides of the transverse seat 651, and the shaft of the roller shaft 61 is positioned at the top of the transverse seat 651; the motor 7 and the chain wheel 81 or the gear are positioned on the longitudinal cantilever 652, and a buckling roller 63 is also arranged on the longitudinal cantilever 652, so that the support of the longitudinal cantilever 652 is improved, and particularly, the meshing between the gear and the rack can be ensured.

Claims

1. A two-lining trolley traveling device comprises two parallel longitudinal beams bearing a door beam assembly, a jacking assembly and a traveling assembly; the jacking assembly and the walking assembly are arranged on the two longitudinal beams, the longitudinal beams are jacked up by the jacking assembly to form supports, and the walking assembly is used for driving the longitudinal beams to walk and moving the position of the door beam assembly; the method is characterized in that: the walking assembly comprises a roller, a supporting seat, a motor and a driving chain; the supporting seat and the roller are separated from the bottom of the longitudinal beam to form a support for landing the longitudinal beam, wherein the roller is 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 roller shaft; the motor is arranged on the supporting seat and is connected with the driving chain in a transmission way; the driving chain is of one of the following structures: 1. the chain wheel is in transmission connection with the motor, and a chain meshed with the chain wheel is hung at the bottom of the longitudinal beam; 2. the gear rack structure is characterized in that a gear is in transmission connection with the motor, and a rack meshed with the gear is locked at the bottom of the longitudinal beam; the longitudinal beam is driven by the motor to move relative to the supporting seat.

2. A two-lined trolley walking device according to claim 1, characterized in that: two parallel linear guide rails are arranged at the bottom of the longitudinal beam, and a chain or a rack is arranged between the two linear guide rails; the supporting seat is correspondingly provided with two roll shafts, the outer side of each roll shaft is also locked with a hanging plate, the upper end shaft of each hanging plate is positioned with a buckling roller, and the buckling roller is abutted to the upper edge of the longitudinal beam extending edge.

3. A two-lined trolley walking device according to claim 1 or 2, characterized in that: the supporting seat comprises herringbone legs and a motor seat, and the motor and the roller shaft are arranged on the motor seat; the herringbone feet are tightly attached to the vertical walls on the two sides of the motor base, two rows of through holes are correspondingly formed in the herringbone feet, the herringbone feet are fastened through penetrating bolts, and the height of the motor base can be adjusted relative to the herringbone feet.

4. A two-lined trolley walking device according to claim 3, wherein: the motor base in the supporting seat is of a horizontal T-shaped structure and is provided with a transverse seat and a longitudinal cantilever which are connected, through holes are formed in two sides of the transverse seat, and the roll shaft is positioned at the top of the transverse seat; the motor and the chain wheel or the gear are positioned on the longitudinal cantilever, and a buckling roller is also arranged on the longitudinal cantilever.

5. A two-lined trolley walking device according to claim 4, wherein: the middle part of a roll shaft in the support seat is provided with a roll groove which is embedded on the linear guide rail.

6. A two-lined trolley walking device according to claim 4, wherein: the chain wheels positioned on the longitudinal cantilever are three, the main chain wheel is in transmission connection with the motor, the driven chain wheels are separately arranged on two sides of the main chain wheel, and the chain is wound through the upper chain teeth of the driven chain wheels and the lower chain teeth of the main chain wheels.

7. A two-lined trolley walking device according to claim 1, characterized in that: the driving chain adopts a double-row chain wheel and chain structure or a double-row gear and rack structure.