CN217678542U

CN217678542U - Height-adjustable self-propelled trestle

Info

Publication number: CN217678542U
Application number: CN202221704646.4U
Authority: CN
Inventors: 周健平; 李凯; 余致丞; 赵聪; 侯飞龙
Original assignee: Sichuan Renmin Canal Construction Co ltd
Current assignee: Sichuan Renmin Canal Construction Co ltd
Priority date: 2022-07-04
Filing date: 2022-07-04
Publication date: 2022-10-28
Anticipated expiration: 2032-07-04

Abstract

The utility model relates to a height-adjustable's self-propelled landing stage relates to the field of self-propelled landing stage, including main landing stage, sliding connection has supplementary landing stage on the main landing stage, supplementary landing stage both sides articulate there is flexible bridge, flexible bridge is extending structure, be provided with the lift piece that orders about supplementary landing stage lift on the main landing stage, be provided with on the supplementary landing stage and adjust flexible bridge pivoted driving piece. Order about supplementary landing stage through the lifter and go up and down, adjust flexible roof beam through the driving piece and rotate to required position, its length is adjusted to flexible bridge to increase the construction space under the supplementary bridge, facilitate for workman's construction.

Description

Height-adjustable self-propelled trestle

Technical Field

The application relates to the field of self-propelled trestle, especially to a height-adjustable self-propelled trestle.

Background

Modern tunnels are complex in geology and structure, short in construction period and high in quality, and have higher requirements for innovation of construction processes. The tunnel construction mainly comprises: excavating, lining and decorating. The main factors influencing the service life of the tunnel and the construction period of the tunnel are determined by two procedures of excavation and lining. The two processes are simultaneously carried out in a narrow space of the tunnel, and the construction cannot be interfered with each other, which puts high requirements on the construction method and construction management.

In the related art, a patent with publication number CN205821982U discloses a self-propelled tunnel inverted arch trestle, which comprises a trestle, traveling wheels and supporting legs; the trestle comprises two trestle beams, a connecting truss and a trestle driving device, the two trestle beams are symmetrically arranged in parallel, the trestle beams comprise a front trestle beam, a middle trestle beam and a rear trestle beam, the front trestle beam, the rear trestle beam and the middle trestle beam are connected in a bearing and inserting penetrating manner, racks are arranged on the bottom surfaces of the front trestle beam and the rear trestle beam, and the driving device comprises two motors fixed at two ends of the middle trestle beam. When the trestle needs to be moved, the motor drives the front trestle beam to extend out of the middle trestle beam to move forwards, the traveling wheels move along the ground, after the traveling wheels are in place, the supporting legs are supported on the ground, and an inverted arch is excavated; then, starting a motor, moving the middle trestle girder and the rear trestle girder forwards, and supporting the legs on the ground after the middle trestle girder and the rear trestle girder move to the required positions; the front stack bridge moves forwards again, and the reciprocating motion is carried out.

When using above-mentioned self-propelled tunnel invert landing stage, when needs carry out the invert lining to the tunnel, the construction space of preceding landing stage roof beam below is less, inconvenient construction.

SUMMERY OF THE UTILITY MODEL

For construction convenience, the application provides a height-adjustable's self-propelled landing stage.

The application provides a pair of height-adjustable's self-propelled landing stage adopts following technical scheme:

the utility model provides a height-adjustable's self-propelled landing stage, includes main landing stage, sliding connection has supplementary landing stage on the main landing stage, supplementary landing stage both sides articulate there is flexible bridge, flexible bridge is extending structure, be provided with the lift piece that orders about supplementary landing stage lift on the main landing stage, be provided with on the supplementary landing stage and adjust flexible bridge pivoted driving piece.

Through adopting above-mentioned technical scheme, order about supplementary landing stage through the lift to make supplementary landing stage rise to required position, through the cooperation of driving piece and flexible bridge, make flexible bridge butt respectively on ground and main landing stage, thereby realize supplementary bridge rising, increase the construction space under the supplementary bridge, so that the workman is under construction.

Optionally, flexible bridge includes first bridge, first bridge is articulated with supplementary landing stage, sliding sleeve is equipped with a second bridge on the first bridge, it is connected with the screw rod to rotate on the second bridge, first bridge and screw rod threaded connection, be provided with on the second bridge and order about screw rod pivoted first motor.

Through adopting above-mentioned technical scheme, start first motor, order about the screw rod and rotate for the second props the bridge orientation and is close to or keeps away from the direction slip of supplementary landing stage, so that the length of the flexible bridge of control, so that the second props the bridge butt on required position, so that increase the construction space.

Optionally, the driving piece is including rotating the pivot of connection on supplementary landing stage, pivot and first landing stage fixed connection, fixed cover is equipped with the worm wheel in the pivot, rotate on the supplementary landing stage and be connected with the worm with worm wheel meshing, be provided with on the supplementary landing stage and order about worm pivoted second motor.

Through adopting above-mentioned technical scheme, start the second motor, order about the worm and rotate to make the worm wheel rotate, so that the pivot rotates, and then make first bridge rotate, so that first bridge rotates to required position, provides convenience for increasing the construction space.

Optionally, the lifting member includes a plurality of hydraulic cylinders disposed on the main trestle, and drive shafts of the plurality of hydraulic cylinders are connected to the auxiliary trestle.

Through adopting above-mentioned technical scheme, supplementary landing stage slip can be ordered about in the setting of pneumatic cylinder, has made things convenient for construction space's increase to a great extent.

Optionally, a support column is arranged on the main trestle, the auxiliary trestle is connected to the support column in a sliding manner, and a reinforcing member for reinforcing the auxiliary trestle is arranged on the support column.

Through adopting above-mentioned technical scheme, the setting of support column and reinforcement can increase the connection steadiness of supplementary landing stage to improve the security of construction.

Optionally, the reinforcing member includes the wire rope of connection on supplementary landing stage, be provided with the electric block who is used for receiving and releasing wire rope on the support column.

Through adopting above-mentioned technical scheme, through electric block and wire rope's cooperation to make the connection steadiness of supplementary landing stage increase, the security of construction obtains the promotion of certain degree.

Optionally, the one end that supplementary landing stage is close to the support column is provided with the sliding block, set up on the support column and supply the gliding spout of sliding block.

Through adopting above-mentioned technical scheme, the setting of sliding block and spout has certain guide effect, provides convenience for assisting the lift of landing stage.

Optionally, one end of the second supporting bridge, which is close to the auxiliary trestle, is set to be an inclined plane, and the inclined plane is inclined downwards towards a direction away from the first supporting bridge.

Through adopting above-mentioned technical scheme, the setting on inclined plane makes when transporting material car through first bridge and second bridge handing-over department, reduces jolting that the difference in height brought, provides convenience for the current of transporting material car.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the auxiliary trestle is driven to ascend and descend by the ascending and descending piece so as to ascend to a required position, the telescopic bridge is respectively abutted against the ground and the main trestle by the matching of the driving piece and the telescopic bridge, so that the auxiliary bridge is lifted, and the construction space below the auxiliary bridge is enlarged so as to facilitate the construction of workers;

2. starting the first motor, driving the screw rod to rotate, and enabling the second bridge to slide towards the direction close to or far away from the auxiliary trestle so as to control the length of the telescopic bridge, and enabling the second bridge to be abutted against a required position so as to increase the construction space;

3. the second motor is started, the worm is driven to rotate, the worm wheel is driven to rotate, the rotating shaft is driven to rotate, the first supporting bridge is driven to rotate to the required position, and convenience is provided for increasing the construction space.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a partial sectional view of a telescopic arm in an embodiment of the present application.

Fig. 3 is an enlarged view of a portion a of fig. 1, and is mainly used for showing the structure of the driving member.

Fig. 4 is a schematic partial explosion diagram of an embodiment of the present application, which is mainly used for showing the structure of the reinforcement.

Description of reference numerals: 1. a main trestle; 2. an auxiliary trestle; 3. a telescopic bridge; 31. a first bridge; 32. a second bridge; 33. a first motor; 34. a screw; 4. a hydraulic cylinder; 5. a drive member; 51. a rotating shaft; 52. a worm gear; 53. a worm; 54. a second motor; 6. a support pillar; 7. a reinforcement; 71. a wire rope; 711. a main rope; 722. rope supporting; 72. an electric hoist; 8. a slider; 9. a chute; 10. a bevel; 11. a sliding groove; 12. a limiting block; 13. a limiting groove; 14. a first support plate; 15. a second support plate; 16. a pillar; 17. connecting columns.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

The embodiment of the application discloses height-adjustable's self-propelled landing stage, as shown in figure 1, including main landing stage 1, sliding connection has supplementary landing stage 2 on main landing stage 1, the length direction of supplementary landing stage 2 is parallel with the length direction of main landing stage 1, the sliding direction of supplementary landing stage 2 is perpendicular with the length direction of

main landing stage

1, 2 both sides of supplementary landing stage articulate there is flexible bridge 3, be provided with the lift piece that orders about supplementary landing stage 2 and go up and down on the main landing stage 1, the lift piece includes

pneumatic cylinder

4, 4 fixed connection of pneumatic cylinder are on main landing stage 1, in this embodiment, pneumatic cylinder 4 sets up to nine, the equal fixed connection of drive shaft of every pneumatic cylinder 4 is on supplementary landing stage 2.

Combine fig. 1 and fig. 2, flexible bridge 3 is scalable structure, flexible bridge 3 includes first bridge 31, first bridge 31 is articulated with supplementary landing stage 2, first bridge 31 links up with supplementary landing stage 2, sliding sleeve is equipped with second bridge 32 on the first bridge 31, set up the gliding sliding tray 11 of confession first bridge 31 in the second bridge 32, the swivelling joint has screw rod 34 on the second bridge 32, the axis of rotation of screw rod 34 is parallel with the length direction of first bridge 31, first bridge 31 and screw rod 34 threaded connection, fixedly connected with orders about screw rod 34 pivoted first motor 33 in the second bridge 32, fixedly connected with stopper 12 on the first bridge 31, set up the gliding spacing groove 13 of confession stopper 12 in the second bridge 32, spacing groove 13 and sliding tray 11 intercommunication, stopper 12 and spacing groove 13's setting has the guide effect, and improve the effect of sliding of second bridge 32, second bridge 32 is close to supplementary landing stage 2 one end and sets up to inclined plane 10, inclined plane 10 is towards keeping away from first bridge 31 orientation downward sloping.

With reference to fig. 1 and fig. 3, an auxiliary trestle 2 is provided with a driving part 5 for adjusting the rotation of the telescopic bridge 3, the driving part 5 includes a rotating shaft 51, two first supporting plates 14 are fixedly connected to one end of the auxiliary trestle 2 close to the first supporting plate 31, the rotating shaft 51 is rotatably connected to the first supporting plate 14, the rotating shaft 51 is perpendicular to the rotating shaft of the screw 34, the rotating shaft 51 is fixedly connected to the first trestle 31, a worm wheel 52 is fixedly sleeved on the rotating shaft 51, a second supporting plate 15 is fixedly connected to the auxiliary trestle 2, a worm 53 meshed with the worm wheel 52 is rotatably connected to the second supporting plate 15, the rotating shaft of the worm 53 is perpendicular to the rotating shaft of the rotating shaft 51, a second motor 54 is fixedly connected to the auxiliary trestle 2, and a driving shaft of the second motor 54 is fixedly connected to one end of the worm 53.

When adjusting auxiliary trestle 2 height, start hydraulic cylinder 4, make auxiliary trestle 2 slide along vertical direction, after auxiliary trestle 2 slides to required position, start second motor 54, make worm 53 rotate, so that worm wheel 52 rotates, so that pivot 51 rotates, and then make first trestle 31 rotate to required position, rethread starts second motor 54, order about screw rod 34 to rotate, so that second trestle 32 slides, make the butt of the second trestle 32 of one side subaerial, the butt of the second trestle 32 of opposite side is on main trestle 1, thereby realize adjusting auxiliary trestle 2's height.

With reference to fig. 1 and 4, two sides of a main trestle 1 are fixedly connected with support columns 6, the support columns 6 are fixedly connected to the main trestle 1 along a vertical direction, an auxiliary trestle 2 is slidably connected to the support columns 6, a sliding block 8 is arranged at one end, close to the support columns 6, of the auxiliary trestle 2, and a sliding chute 9 for the sliding block 8 to slide is formed in the support columns 6; fixedly connected with spliced pole 17 on one end that main trestle 1 was kept away from to support column 6, the both ends of spliced pole 17 are connected with two support columns 6 respectively, four pillars 16 of fixedly connected with on the supplementary trestle 2, be provided with the reinforcement 7 that is used for consolidating supplementary trestle on the spliced pole 17, reinforcement 7 includes wire rope 71, wire rope 71 fixed connection is on pillar 16, fixedly connected with is used for receiving and releasing wire rope 71's electric block 72 on the spliced pole 17, in this implementation, wire rope 71 divide into main rope 711, the one end of main rope 711 is connected on electric block 72, four ropes 722 of the other end fixedly connected with of main rope 711, four ropes 722 fixed connection respectively on pillar 16.

After the auxiliary trestle 2 is adjusted to the required height, the electric hoist 72 is started, and the steel wire rope 71 is tightened, so that the steel wire rope 71 is tensioned, the auxiliary trestle 2 is reinforced, and the stability of the auxiliary trestle 2 is improved.

The implementation principle of the embodiment of the application is as follows: when adjusting auxiliary trestle 2 height, start hydraulic cylinder 4, make auxiliary trestle 2 slide along vertical direction, after auxiliary trestle 2 slides to required position, start second motor 54, make worm 53 rotate, so that worm wheel 52 rotates, so that pivot 51 rotates, and then make first trestle 31 rotate to required position, rethread starts second motor 54, order about screw rod 34 to rotate, so that second trestle 32 slides, make the butt of the second trestle 32 of one side subaerial, the butt of the second trestle 32 of opposite side is on main trestle 1, thereby realize adjusting auxiliary trestle 2's height.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a height-adjustable's self-propelled landing stage, includes main landing stage (1), its characterized in that: sliding connection has supplementary landing stage (2) on main landing stage (1), supplementary landing stage (2) both sides are articulated to have flexible bridge (3), flexible bridge (3) are scalable structure, be provided with the lift piece of ordering about supplementary landing stage (2) and going up and down on main landing stage (1), be provided with on supplementary landing stage (2) and adjust flexible bridge (3) pivoted driving piece (5).

2. The self-propelled trestle of claim 1 with adjustable height, comprising: flexible bridge (3) are including first bridge (31), first bridge (31) are articulated with supplementary landing stage (2), sliding sleeve is equipped with second bridge (32) on first bridge (31), it is connected with screw rod (34) to rotate on second bridge (32), first bridge (31) and screw rod threaded connection, be provided with on second bridge (32) and order about screw rod pivoted first motor (33).

3. The self-propelled trestle of adjustable height of claim 2, further comprising: driving piece (5) are including rotating pivot (51) of connection on supplementary landing stage (2), pivot (51) and first landing stage (31) fixed connection, fixed cover is equipped with worm wheel (52) in pivot (51), it is connected with worm (53) with worm wheel (52) meshing to rotate on supplementary landing stage (2), be provided with on supplementary landing stage (2) and order about worm (53) pivoted second motor (54).

4. The self-propelled trestle of claim 1 with adjustable height, comprising: the lifting piece comprises a plurality of hydraulic cylinders (4) arranged on the main trestle (1), and a plurality of driving shafts of the hydraulic cylinders (4) are connected to the auxiliary trestle (2).

5. The self-propelled trestle of claim 1 with adjustable height, comprising: be provided with support column (6) on main trestle (1), supplementary trestle (2) sliding connection is on support column (6), be provided with reinforcement (7) that are used for consolidating supplementary trestle (2) on support column (6).

6. The self-propelled trestle of claim 5 with adjustable height, characterized in that: the reinforcing member (7) is including connecting wire rope (71) on auxiliary trestle (2), be provided with electric block (72) that are used for receiving and releasing wire rope (71) on support column (6).

7. The self-propelled trestle with the adjustable height of claim 5, which is characterized in that a sliding block (8) is arranged at one end, close to a supporting column (6), of the auxiliary trestle (2), and a sliding groove (9) for the sliding block (8) to slide is formed in the supporting column (6).

8. A self-propelled trestle with adjustable height according to claim 2, characterised in that the end of the second trestle (32) close to the auxiliary trestle (2) is provided with a slope (10), and the slope (10) is inclined downwards away from the first trestle (31).