CN209957301U

CN209957301U - Lifting device for cutting concrete supporting beam

Info

Publication number: CN209957301U
Application number: CN201920709623.4U
Authority: CN
Inventors: 彭柏荣; 杨焕起; 李宁; 魏林; 李亮; 全熊钰; 彭柏涛
Original assignee: Sinohydro Bureau 8 Co Ltd
Current assignee: Sinohydro Bureau 8 Co Ltd
Priority date: 2019-05-17
Filing date: 2019-05-17
Publication date: 2020-01-17
Anticipated expiration: 2029-05-17

Abstract

The utility model discloses a concrete supporting beam cuts off with lifting device, include by lower supreme chassis, elevating system who connects gradually and lift the platform, still including two splint that the symmetry set up and be used for driving two splint and be close to relatively or keep away from the splint actuating mechanism of motion, the both sides of splint all are connected with the chassis through a splint actuating mechanism. The lifting device for cutting the concrete supporting beam has the advantages of convenience in operation, strong lifting stability, safety and reliability in cutting and the like.

Description

Lifting device for cutting concrete supporting beam

Technical Field

The utility model relates to a concrete supporting beam cuts off engineering construction technical field, especially relates to a concrete supporting beam cuts off with lifting device.

Background

With the urban development of China, urban population is increasing continuously, urban traffic pressure is becoming more and more serious, and subways become the best way to solve the urban traffic pressure. In order to increase the utilization rate of underground space, the underground depth of a subway is continuously increased, and higher and tighter requirements are put forward on the foundation pit excavation technology, namely, the stability of the foundation pit is ensured, and the requirements of deformation control are met so as to ensure the safety of buildings, underground pipelines, roads and the like around the foundation pit. During subway construction, the concrete support plays an important role in the safety of a foundation pit.

The subway station excavation mostly adopts the open cut method, and during the open cut method construction, generally adopt the mode that crane and fork truck combined together, hoist the concrete support that cuts off, but this method is big to the surrounding environment influence, and the required working space is wide, easily causes adverse effect to road surface traffic, and need all demolish the structure in the station scope when adopting the open cut method construction, produces high removal expense. Therefore, a new excavation method, namely a cover excavation method, is developed.

When the cover-excavation method is used for construction, a crane cannot be used for hoisting the dismantled concrete supporting beam, the modes of lifting by a forklift and cutting by a wire saw are mostly adopted, and the forklift transports the concrete supporting beam to the hoisting hole to be hoisted out. However, the forklift lifting platform has no limiting device for the cut concrete supporting beam, and the concrete supporting beam is easy to slide off and even causes safety accidents; meanwhile, the forklift is small in counter weight, the lifting platform is located on the front side, the lifting stability is poor, and the forklift is easy to topple and cause safety accidents at the moment that the cut concrete supporting beam falls down; and the lifting height of the forklift is limited, and the concrete support outside the limit of the lifting height cannot be lifted.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art not enough, provide a convenient operation, lift stable strong and enable the more safe and reliable's of cutting concrete supporting beam to cut off with lifting device.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the utility model provides a concrete supporting beam cuts off with lifting device, includes by lower supreme chassis, elevating system who connects gradually and lift the platform, still including two splint that the symmetry set up and be used for the drive two splint are close to relatively or keep away from the splint actuating mechanism of motion, the both sides of splint all are through one splint actuating mechanism with the chassis is connected.

As a further improvement of the above technical solution:

the clamping plate driving mechanism comprises a connecting rod and a first hydraulic oil cylinder perpendicular to the clamping plate, the top end of the connecting rod is connected with the clamping plate, the bottom end of the connecting rod is connected with one end of the first hydraulic oil cylinder, and the other end of the first hydraulic oil cylinder is fixedly connected with the bottom frame.

And a second hydraulic cylinder for driving the connecting rod to ascend and descend is fixedly connected to the bottom end of the connecting rod, and the second hydraulic cylinder is fixedly connected with the first hydraulic cylinder.

And the bottom end of the second hydraulic oil cylinder is slidably arranged on the bottom frame.

The chassis is provided with a slide rail, the bottom of the second hydraulic cylinder is provided with a pulley, and the pulley is slidably arranged on the slide rail.

The chassis comprises a bottom plate and side plates arranged on two sides of the bottom plate, the slide rail is fixedly arranged on the bottom plate, and the first hydraulic oil cylinder is fixedly connected with the side plates.

The lifting platform is provided with first notches right above the clamping plates for the clamping plates to pass through, and second notches for the connecting rods to pass through in a translation mode are connected to two ends of the first notches on the lifting platform.

Elevating system is including cutting fork lifting support, first articulated arm, second articulated arm and being used for the drive cut the third hydraulic cylinder that fork lifting support goes up and down, cut fork lifting support's bottom and install on the chassis, lift the platform and install cut fork lifting support's top, the one end of first articulated arm with the chassis is articulated, the other end with third hydraulic cylinder's bottom is articulated, the one end of second articulated arm with it is articulated to cut fork lifting support, the other end with third hydraulic cylinder's top is articulated.

The bottom of the underframe is provided with universal wheels.

And a fourth hydraulic oil cylinder for jacking the underframe is arranged at the bottom of the underframe.

Compared with the prior art, the utility model has the advantages of:

the utility model discloses a concrete supporting beam cuts off and uses lifting device, include by lower supreme chassis, elevating system and the lift platform that connects gradually, still including two splint that the symmetry set up and be used for driving two splint and be close to relatively or keep away from the splint actuating mechanism of motion, the both sides of splint all are connected with the chassis through a splint actuating mechanism. During the use, earlier with concrete supporting beam cut off with lifting device move to under the concrete supporting beam who treats the cutting, later adjust the height of lifting the platform through elevating system, up to lifting the platform and treating the concrete supporting beam in close contact with that cuts, rethread splint actuating mechanism adjusts two splint and presss from both sides the fixed concrete supporting beam who treats the cutting to two splint clamp, prevent to topple over after the concrete supporting beam who treats the cutting amputates, make the cutting safe and reliable more, simultaneously, the concrete supporting beam after the excision is placed on lifting the platform, the phenomenon of toppling over can not appear, it lifts the strong stability. After a concrete supporting beam to be cut is cut off, the concrete supporting beam is lifted by the lifting platform, at the moment, the clamping of the cut concrete supporting beam is loosened by adjusting the clamping plate driving mechanism, the lifting platform is lowered by adjusting the lifting mechanism, the lifting platform is lowered to a safe height, the cut concrete supporting beam on the lifting platform is lifted out of a foundation pit by a crane, or the cut concrete supporting beam is transported to a hoisting hole by a transport vehicle and lifted out by the crane, and the operation is convenient.

Drawings

FIG. 1 is a schematic structural view of the lifting device for cutting a concrete supporting beam in a use state.

Fig. 2 is a schematic sectional view of a-a in fig. 1.

FIG. 3 is a schematic structural view of the lifting platform of the lifting device for cutting the concrete supporting beam.

The reference numerals in the figures denote:

1. a chassis; 11. a base plate; 12. a side plate; 13. a slide rail; 2. a lifting mechanism; 21. a scissor lift bracket; 22. a first hinge lever; 23. a second hinge lever; 24. a third hydraulic cylinder; 25. a connecting rod; 3. lifting the platform; 31. a first notch; 32. a second notch; 4. a splint; 5. A splint driving mechanism; 51. a connecting rod; 52. a first hydraulic cylinder; 53. a second hydraulic cylinder; 54. a pulley; 6. a universal wheel; 7. a fourth hydraulic cylinder; 8. a concrete support beam.

Detailed Description

The invention will be described in further detail with reference to the drawings and specific examples.

As shown in fig. 1 and fig. 2, the lifting device for cutting a concrete supporting beam in this embodiment includes an underframe 1, a lifting mechanism 2, a lifting platform 3, two clamp plates 4 symmetrically arranged, and a clamp plate driving mechanism 5 for driving the two clamp plates 4 to move relatively close to or away from each other, wherein the two sides of the clamp plates 4 are connected with the underframe 1 through the clamp plate driving mechanism 5. During the use, earlier with concrete supporting beam cut off with lifting device move to waiting to cut under the concrete supporting beam 8, later adjust the height of lifting platform 3 through elevating system 2, until lifting platform 3 and waiting to cut the concrete supporting beam 8 in close contact with, rethread splint actuating mechanism 5 adjusts two splint 4 to two splint 4 and presss from both sides the fixed concrete supporting beam 8 of waiting to cut, prevent to wait to topple over after the concrete supporting beam 8 that cuts amputates, make the cutting safe and reliable more, and simultaneously, the concrete supporting beam 8 after the excision is placed on lifting platform 3, the phenomenon of toppling over can not appear, it lifts the strong stability. After the concrete supporting beam 8 to be cut is cut off, the concrete supporting beam is lifted by the lifting platform 3, at the moment, the clamping of the cut concrete supporting beam 8 is loosened by adjusting the clamping plate driving mechanism 5, the lifting platform 3 is descended by adjusting the lifting mechanism 2, after the lifting platform 3 descends to a safe height, the cut concrete supporting beam 8 on the lifting platform 3 is lifted out of a foundation pit by a crane, or the cut concrete supporting beam 8 is transported to a hoisting hole by a transport vehicle and is hoisted out by the crane (not shown in the figure), and the operation is convenient. During construction, a sleeper can be arranged between the concrete supporting beam 8 to be cut and the lifting platform 3, and the protection effect on the lifting platform 3 is achieved.

In this embodiment, the clamping plate driving mechanism 5 includes a connecting rod 51 and a first hydraulic cylinder 52 vertically disposed with the clamping plate 4, the top end of the connecting rod 51 is connected with the clamping plate 4, the bottom end of the connecting rod 51 is connected with one end of the first hydraulic cylinder 52, and the other end of the first hydraulic cylinder 52 is fixedly connected with the base frame 1. The first hydraulic oil cylinders 52 are used for driving the clamping plates 4 to move horizontally, and all the first hydraulic oil cylinders 52 cooperate with each other to drive the clamping plates 4, so that the two clamping plates 4 move relatively close to or far away from each other, and the clamping and fixing of the concrete supporting beam 8 to be cut are realized.

In this embodiment, a second hydraulic cylinder 53 for driving the connecting rod 51 to move up and down is fixedly connected to the bottom end of the connecting rod 51, and the second hydraulic cylinder 53 is fixedly connected to the first hydraulic cylinder 52. In the structure, the second hydraulic cylinder 53 is vertically arranged and used for driving the connecting rod 51 to ascend and descend, and due to the second hydraulic cylinder 53, after the concrete supporting beam 8 to be cut is cut off, the cut concrete supporting beam 8 lifted by the lifting platform 3 can keep clamping the concrete supporting beam 8 in the descending process, and when the concrete supporting beam 8 is moved to an unloading position, the clamping plate driving mechanism 5 is enabled to loosen the clamping of the cut concrete supporting beam 8 by adjusting the first hydraulic cylinder 52, so that the construction is safer and more reliable; meanwhile, when the concrete support beam 8 is located at the unloading position, the clamping plate 4 can be further lowered until the clamping plate 4 is completely located below the lifting platform 3, so that the cut concrete support beam 8 can be conveniently unloaded.

In this embodiment, the bottom end of the second hydraulic cylinder 53 is slidably disposed on the chassis 1, so that the stability of the second hydraulic cylinder 53 is enhanced.

In this embodiment, the chassis 1 is provided with a slide rail 13, the bottom of the second hydraulic cylinder 53 is provided with a pulley 54, and the pulley 54 is slidably disposed on the slide rail 13. In this structure, the number of the slide rails 13 is two, the splint driving mechanisms 5 at the two ends of each splint 4 are arranged in parallel, the splint driving mechanisms 5 on the two sides of one splint 4 are arranged symmetrically with the splint driving mechanisms 5 on the two sides of the other splint 4, and the pulleys 54 of the symmetrical splint driving mechanisms 5 are arranged on the same slide rail 13 in a sliding manner.

In this embodiment, the base frame 1 includes a bottom plate 11 and side plates 12 disposed on two sides of the bottom plate 11, the slide rail 13 is fixedly disposed on the bottom plate 11, and the first hydraulic cylinder 52 is fixedly connected to the side plates 12. In this structure, curb plate 12 is two, sets up respectively in 11 both sides of bottom plate, and curb plate 12 is parallel with splint 4, and two splint 4 are located between two curb plates 12, all is equipped with first hydraulic cylinder 52 between each connecting rod 51 and the curb plate 12, and bottom plate 11 adopts the processing of 6mm checkered plate to make, and slide rail 13 welds on bottom plate 11, and slide rail 13 adopts 10# national standard channel-section steel to make.

In this embodiment, lift platform 3 and all offer the first notch 31 that is used for supplying splint 4 to walk directly over each splint 4, lift platform 3 and all be connected with at the both ends of each first notch 31 and be used for supplying the current second notch 32 of connecting rod 51 translation. As shown in fig. 3, each first notch 31 and the second notches 32 on both sides thereof form a concave groove when viewed from above, the two concave grooves are symmetrically arranged, the notches of the two concave grooves are oppositely arranged, the clamping plate 4 can pass through the first notch 31 in the lifting process, when the concrete supporting beam 8 to be cut needs to be clamped, the clamping plate 4 is driven to ascend by adjusting the second hydraulic cylinder 53, the clamping plate 4 is completely positioned above the lifting platform 3, and then the clamping plate 4 is driven to translate by adjusting the first hydraulic cylinder 52, at this time, the connecting rod 51 moves along the second notch 32 at the position. Preferably, the lifting platform 3 is made of a 6mm checkered plate.

In this embodiment, the lifting mechanism 2 includes the scissor-type lifting support 21, the first articulated rod 22, the second articulated rod 23, and the third hydraulic cylinder 24 that is used for driving the scissor-type lifting support 21 to go up and down, the bottom of the scissor-type lifting support 21 is installed on the chassis 1, the lifting platform 3 is installed on the top of the scissor-type lifting support 21, one end of the first articulated rod 22 is articulated with the chassis 1, the other end is articulated with the bottom of the third hydraulic cylinder 24, one end of the second articulated rod 23 is articulated with the scissor-type lifting support 21, and the other end is articulated with the top of the third hydraulic cylinder 24. In this structure, the bottom of cutting fork lift support 21 is installed on bottom plate 11 of chassis 1, cuts fork lift support 21 and is the double row formula structure, and connects through connecting rod 25 between each row, and connecting rod 25 adopts manganese steel rectangular pipe to make, and the material of first hinge bar 22, second hinge bar 23 is the Q235 steel that 2mm is thick.

In this embodiment, the bottom of the underframe 1 is provided with the universal wheels 6, which facilitates the movement of the lifting device for cutting off the concrete supporting beam to adjust the position. In this configuration, the total number of the universal wheels 6 is four, and the universal wheels are provided at four corners of the bottom plate 11.

In this embodiment, the bottom of chassis 1 is equipped with fourth hydraulic cylinder 7 that is used for jacking chassis 1, cuts off with lifting device when lifting a concrete supporting beam 8 when this concrete supporting beam, and accessible fourth hydraulic cylinder 7 jacking chassis 1 to universal wheel 6 is unsettled completely, improves the stability of this concrete supporting beam cuts off with lifting device when the construction. The number of the fourth hydraulic cylinders 7 is four, the four fourth hydraulic cylinders are respectively fixed at four corners of the base plate 11, and the first hydraulic cylinder 52, the second hydraulic cylinder 53, the third hydraulic cylinder 24 and the fourth hydraulic cylinder 7 are all provided with explosion-proof valves.

The construction method comprises the following specific steps:

site cleaning: before the concrete supporting beam 8 is cut off, sundries on the concrete supporting beam 8 need to be cleaned, and meanwhile, field sundries need to be cleaned, so that the lifting device for cutting off the concrete supporting beam and other equipment can be conveniently moved;

measurement marking: after the cutting length range is determined, marking by using red paint;

the lifting device is in place: moving the concrete supporting beam cutting-off lifting device to a position right below a marked concrete supporting beam 8, laying a sleeper on a lifting platform 3, adjusting a fourth hydraulic oil cylinder 7 to enable a universal wheel 6 to be suspended, adjusting a third hydraulic oil cylinder 24 to enable the sleeper to be in close contact with the concrete supporting beam 8, ensuring that the concrete supporting beam 8 does not have obvious falling signs after being cut off, adjusting a second hydraulic oil cylinder 53 to enable a clamping plate 4 to extend out of the lifting platform 3, and then adjusting a first hydraulic oil cylinder 52 to enable two clamping plates 4 to clamp and fix the concrete supporting beam 8;

cutting construction: the concrete support beam 8 is cut by a rope saw, the cutting position is based on the red paint marking position, an operator needs to wear a safety protection device when installing the rope saw, and then a cutting machine (the rope saw) is started to cut off the concrete support;

the cut concrete support beam 8 is lowered: after the concrete support beam 8 is cut off, the third hydraulic cylinder 24 is adjusted to enable the lifting platform 3 to descend to the safe height, in the process, the second hydraulic cylinder 53 of the adjuster enables the clamping plate 4 to descend synchronously, and then the second hydraulic cylinder 53 is adjusted to enable the clamping plate 4 to descend to the lower part of the lifting platform 3;

the transferred concrete supporting beam 8 is transferred: and (4) hoisting the lowered concrete support beam 8 out of the foundation pit by using a crane, or transporting the lowered concrete support beam 8 to a hoisting hole by using a transporting device and then hoisting out by using the crane.

The lifting device shifts: the fourth hydraulic ram 7 is adjusted to ground the castor 6 and the jack is then moved to the cut out position of the next concrete support beam 8.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The technical solution of the present invention can be used by anyone skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, without departing from the scope of the technical solution of the present invention, using the technical content disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a concrete supporting beam cuts off with lifting device, includes by lower supreme chassis (1), elevating system (2) that connect gradually and lift platform (3), its characterized in that: the clamping device is characterized by further comprising two clamping plates (4) which are symmetrically arranged and a clamping plate driving mechanism (5) which is used for driving the two clamping plates (4) to be relatively close to or far away from the moving part, wherein the two sides of each clamping plate (4) are connected with the bottom frame (1) through the clamping plate driving mechanism (5).

2. The lifting device for cutting a concrete support beam according to claim 1, wherein: the clamp plate driving mechanism (5) comprises a connecting rod (51) and a first hydraulic oil cylinder (52) which is perpendicular to the clamp plate (4), the top end of the connecting rod (51) is connected with the clamp plate (4), the bottom end of the connecting rod (51) is connected with one end of the first hydraulic oil cylinder (52), and the other end of the first hydraulic oil cylinder (52) is fixedly connected with the base frame (1).

3. The lifting device for cutting a concrete support beam according to claim 2, wherein: the bottom end of the connecting rod (51) is fixedly connected with a second hydraulic cylinder (53) used for driving the connecting rod (51) to ascend and descend, and the second hydraulic cylinder (53) is fixedly connected with the first hydraulic cylinder (52).

4. The lifting device for cutting a concrete support beam according to claim 3, wherein: the bottom end of the second hydraulic oil cylinder (53) is slidably arranged on the underframe (1).

5. The lifting device for cutting a concrete support beam according to claim 4, wherein: the hydraulic cylinder is characterized in that a sliding rail (13) is arranged on the bottom frame (1), a pulley (54) is arranged at the bottom of the second hydraulic cylinder (53), and the pulley (54) is arranged on the sliding rail (13) in a sliding mode.

6. The lifting device for cutting a concrete support beam according to claim 5, wherein: the chassis (1) comprises a bottom plate (11) and side plates (12) arranged on two sides of the bottom plate (11), the slide rails (13) are fixedly arranged on the bottom plate (11), and the first hydraulic oil cylinder (52) is fixedly connected with the side plates (12).

7. The lifting device for cutting a concrete support beam according to claim 3, wherein: the lifting platform (3) is provided with first notches (31) used for the clamping plates (4) to pass through right above the clamping plates (4), and the lifting platform (3) is connected with second notches (32) used for the connecting rods (51) to pass through in a translation mode at two ends of the first notches (31).

8. The lifting device for cutting a concrete support beam according to any one of claims 1 to 7, wherein: elevating system (2) are including cutting fork lifting support (21), first articulated rod (22), second articulated rod (23) and being used for the drive cut third hydraulic cylinder (24) that fork lifting support (21) goes up and down, the bottom of cutting fork lifting support (21) is installed on chassis (1), lift platform (3) are installed cut the top of fork lifting support (21), the one end of first articulated rod (22) with chassis (1) is articulated, the other end with the bottom of third hydraulic cylinder (24) is articulated, the one end of second articulated rod (23) with it is articulated to cut fork lifting support (21), the other end with the top of third hydraulic cylinder (24) is articulated.

9. The lifting device for cutting a concrete support beam according to any one of claims 1 to 7, wherein: the bottom of the underframe (1) is provided with universal wheels (6).

10. The lifting device for cutting a concrete support beam according to claim 9, wherein: and a fourth hydraulic oil cylinder (7) used for jacking the bottom frame (1) is arranged at the bottom of the bottom frame (1).