Prefabricated T-beam rapid splicing device

Abstract

The utility model discloses a prefabricated T-beam quick splicing device which comprises a bridge girder erection machine installed on a bridgehead roadbed, a front beam hanging vehicle and a rear beam hanging vehicle, the front beam hanging vehicle and the rear beam hanging vehicle are movably installed on the bridge girder erection machine, and the bottom of the front beam hanging vehicle and the bottom of the rear beam hanging vehicle are each provided with a hanging mechanism. The suspension mechanism comprises a suspension cross beam and a suspension cable arranged on the suspension cross beam, the suspension cross beam is connected with the front suspension beam vehicle and the rear suspension beam vehicle, a limiting assembly is further arranged on the suspension cross beam, and the limiting assembly comprises a left limiting piece, a right limiting piece and a driving component which are oppositely arranged; the left limiting piece and the right limiting piece are driven by the driving component to fix and limit the T-beam needing to be suspended. According to the quick splicing device for the prefabricated T-shaped beam, the T-shaped beam can be fixed and limited through the suspension cross beam, the left limiting piece and the right limiting piece, so that the T-shaped beam is kept horizontal in the moving process.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated beam construction, in particular to a prefabricated T-beam quick splicing device. Background Art

[0002] Prefabricated beams are prefabricated in factories and then transported to the construction site for installation and fixation according to the design requirements. In my country's highway bridge construction, more than 90% are small and medium span bridges, among which T beams are the most widely used structural form. At present, T beams are generally prefabricated in prefabrication yards and installed on site. However, due to the difficulty of road transportation caused by the excessive length of the components, the supply range of the prefabrication yard is subject to a large limit. The prefabricated segmental assembled T beam has a simple structure and is easy to inspect and maintain. The segmental transportation has low requirements for roads and a wide range of applications. The segmental construction method also reflects its many advantages such as environmental protection and economy. Therefore, the prefabricated segmental assembled T beam is a manifestation of industrialized construction. Whether it is in the construction of urban elevated roads with limited construction sites and heavy traffic pressure, or in the construction of bridges with complex concrete transportation conditions and short effective construction time, prefabricated segmental T beams have obvious advantages.

[0003] T-beams are generally erected using T-beam bridge erection machines. When erecting T-beams, the transverse rails supporting the front legs of the T-beam bridge erection machine are generally supported on the cap beam, and the transverse rails supporting the rear legs are generally supported on the bridge deck or road surface. When one T-beam is erected and another one in the same span needs to be erected, the bridge erection machine moves horizontally on the transverse rails and then erects another beam. Existing bridge erection machines often use slings to suspend T-beams. Although the spacing between the slings can be adjusted, the T-beams cannot be compressed and limited, so that after the slings lift the T-beams, the T-beams can still tilt or flip in the slings, and the stability is poor. When the T-beams tilt, they cannot be installed further and need to be lifted and adjusted again before they can be installed, thereby reducing the efficiency of installation. Utility Model Content

[0004] The utility model aims to provide a prefabricated T-beam quick splicing device to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A prefabricated T-beam quick splicing device comprises a bridge-building machine, a front beam crane trolley and a rear beam crane trolley installed on a bridgehead roadbed, the front beam crane trolley and the rear beam crane trolley are movably installed on the bridge-building machine, and also comprises a suspension mechanism, the bottom of the front beam crane trolley and the rear beam crane trolley are each provided with a suspension mechanism, the suspension mechanism comprises a suspension crossbeam and a sling arranged on the suspension crossbeam, the suspension crossbeam is connected to the front beam crane trolley and the rear beam crane trolley, the suspension crossbeam is provided with a vertical beam, the top of the vertical beam is provided with a sliding seat, the sliding seat can be slidably installed on the sliding limiting beam of the bridge-building machine, and the suspension crossbeam is also provided with a limiting assembly, the limiting assembly comprises a left limiting member, a right limiting member and a driving component which are relatively arranged, the left limiting member and the right limiting member are slidably installed on the suspension crossbeam, and the left limiting member and the right limiting member are driven by the driving component to fix and limit the T-beam that needs to be suspended.

[0007] In the above-mentioned prefabricated T-beam quick splicing device, the left limiting member and the right limiting member both include vertical limiting plates, and the two vertical limiting plates can be respectively fixed on both sides of the T-beam width direction.

[0008] In the above-mentioned prefabricated T-beam quick splicing device, a pressure block is arranged on the side of the vertical limiting plate that contacts the T-beam. There are multiple pressure blocks, and the multiple pressure blocks are arranged in sequence at intervals along the length direction and height direction of the vertical limiting plate.

[0009] The above-mentioned prefabricated T-beam quick splicing device, the driving component includes a driving motor and a driving gear connected to the driving motor, the left limiting member is provided with a left moving beam, the right limiting member is provided with a right moving beam, and two parallel moving grooves are provided in the suspension beam, and the left moving beam and the right moving beam are respectively slidably arranged in the moving grooves.

[0010] In the above-mentioned prefabricated T-beam quick splicing device, the left moving beam is provided with a left tooth groove portion, and the right moving beam is provided with a right tooth groove portion. The left moving beam and the right moving beam are respectively located on opposite sides of the driving gear, and the left tooth groove portion and the right tooth groove portion are both meshed with the driving gear.

[0011] The above-mentioned prefabricated T-beam quick splicing device also includes a pressing component, which is arranged on the suspension beam and is used to press and fix the T-beam that needs to be suspended.

[0012] The above-mentioned prefabricated T-beam quick splicing device, the pressing assembly includes a pressing seat and a pressing driving member, the pressing driving member is installed on the suspension beam, the pressing seat is installed on the pressing driving member, and the pressing seat is driven by the pressing driving member to move up and down in the vertical direction to press the top of the T-beam.

[0013] In the above-mentioned prefabricated T-beam quick splicing device, a pressure plate is provided at the bottom of the pressure seat, and an elastic buffer is provided between the pressure plate and the pressure seat.

[0014] In the above technical scheme, the prefabricated T-beam rapid splicing device provided by the utility model includes a bridge erection machine installed on the bridge head roadbed, a front beam crane, a rear beam crane and a suspension mechanism, the front beam crane and the rear beam crane are movably installed on the sliding frame, and a suspension mechanism is arranged at the bottom of the front beam crane and the rear beam crane, and the suspension mechanism includes a suspension beam and a sling arranged on the suspension beam, and a left limiting member, a right limiting member and a driving member are arranged on the suspension beam. During the lifting, longitudinal movement and lateral movement of the T beam, the sling can suspend and fix the T beam, and the left limiting member and the right limiting member are respectively fixed on the opposite sides of the T beam, so that the T beam can be fixed and restricted by the suspension beam, the left limiting member and the right limiting member, so that the T beam remains horizontal during the movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 A front view of a prefabricated T-beam quick splicing device provided in an embodiment of the utility model;

[0017] Figure 2 A front view of the suspension mechanism provided by an embodiment of the utility model;

[0018] Figure 3 A schematic diagram of the internal structure of the suspension mechanism provided by an embodiment of the utility model;

[0019] Figure 4 A schematic structural diagram of a pressing assembly provided in an embodiment of the utility model.

[0020] Description of reference numerals:

[0021] 1. Bridge erecting machine; 11. Front beam crane; 12. Rear beam crane; 13. T-beam; 2. Suspension mechanism; 21. Suspension beam; 22. Lifting rope; 23. Vertical beam; 24. Sliding seat; 3. Limiting assembly; 31. Left limiting member; 310. Left moving beam; 311. Left tooth groove; 32. Right limiting member; 320. Right moving beam; 321. Right tooth groove; 33. Vertical limiting plate; 34. Pressure block; 35. Driving member; 36. Driving gear; 37. Moving groove; 4. Pressure assembly; 40. Pressure seat; 41. Pressure driving member; 42. Pressure plate; 43. Elastic buffer. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0023] like Figure 1-4 As shown, the utility model provides a prefabricated T-beam quick splicing device, comprising a bridge erecting machine 1 installed on a bridgehead roadbed, a front beam crane 11, a rear beam crane 12 and a suspension mechanism 2, the front beam crane 11 and the rear beam crane 12 are movably installed on a sliding frame, a suspension mechanism 2 is arranged at the bottom of the front beam crane 11 and the rear beam crane 12, the suspension mechanism 2 comprises a suspension beam 21 and a sling 22 arranged on the suspension beam 21, the suspension beam 21 is connected to the front beam crane 11 and the rear beam crane 12, and the suspension beam 21 is provided with a vertical beam 23, and a sliding seat 24 is provided on the top of the vertical beam 23. The sliding seat 24 can be slidably installed on the sliding limiting beam of the bridge erection machine 1. A limiting component 3 is also provided on the suspension beam 21. The limiting component 3 includes a relatively arranged left limiting member 31, a right limiting member 32 and a driving member 35. The left limiting member 31 and the right limiting member 32 are slidably installed on the suspension beam 21. The left limiting member 31 and the right limiting member 32 are driven by the driving member 35 to fix and limit the T-beam 13 that needs to be suspended.

[0024] Specifically, the bridge erecting machine 1 is assembled and debugged on the bridgehead roadbed. When the T-beam 13 is transported to the bottom of the bridge erecting machine 1 and the trial lifting is completed, the installation and beam feeding operations of the bridge erecting machine 1 are prior art and will not be repeated. The front beam crane 11 and the rear beam crane 12 are movable and installed on the bridge erecting machine 1. When feeding the beam, the front beam crane 11 and the rear beam crane 12 move to the tail of the bridge erecting machine 1. The front beam crane 11 lifts the beam from the No. 1 gun carriage and moves forward at the same time as the No. 2 gun carriage to the position of the rear beam crane 12. When the beam is lifted from No. 2 trolley, the front beam trolley 11 and the rear beam trolley 12 transport the T beam 13 to the bridge span, and the beam transport trolley returns to the beam transport channel. The improvement of this embodiment over the prior art is that a suspension mechanism 2 is provided on the front beam trolley 11 and the rear beam trolley 12, so that during the lifting, longitudinal movement and lateral movement of the T beam 13, the suspension mechanism 2 can keep the T beam 13 horizontal, so that the T beam 13 can remain in a horizontal state after falling into place.

[0025] In this embodiment, a suspension mechanism 2 is provided at the bottom of the front beam crane 11 and the rear beam crane 12, and the suspension mechanism 2 includes a suspension beam 21 and a sling 22 arranged on the suspension beam 21. The suspension beam 21 is fixedly installed at the bottom of the front beam crane 11 and the rear beam crane 12, and the length of the sling 22 can be adjusted as needed to realize the suspension of the T beam 13. At the same time, two vertical beams 23 are provided on the suspension beam 21, and the two vertical beams 23 are connected by a connecting beam. A sliding seat 24 is provided on the top of the vertical beam 23, and a sliding limiting beam is provided at the bottom of the bridge crane 1. The sliding limiting beam is arranged along the length direction of the bridge crane 1, and the sliding seat 24 is slidably connected to the sliding limiting beam. In this way, when the front beam crane 11 and the rear beam crane 12 move along the bridge crane 1, the sliding seat 24 moves along the sliding limiting beam to limit the movement of the suspension beam 21 and ensure that the suspension beam 21 moves along the bridge crane 1.

[0026] In this embodiment, a limiting component 3 is provided on the suspension beam 21, and the limiting component 3 is used to fix and limit the T beam 13. The limiting component 3 includes a driving member 35 and a left limiting member 31 and a right limiting member 32 connected to the driving member 35. The left limiting member 31 and the right limiting member 32 have the same structure. The left limiting member 31 and the right limiting member 32 are both connected to the driving member 35 by transmission. The left limiting member 31 and the right limiting member 32 are driven by the driving member 35 and can move closer to or away from each other along the suspension beam 21, so that The left limiting member 31 and the right limiting member 32 have a clamped fixed state and a separated state. When the T-beam 13 is lifted, moved longitudinally, and moved laterally, the left limiting member 31 and the right limiting member 32 are respectively clamped and fixed on both sides of the width direction of the T-beam 13, so that the left limiting member 31 and the right limiting member 32 fix and restrict the T-beam 13. After the transportation and installation of the T-beam 13 is completed, the driving component 35 is used to make the left limiting member 31 and the right limiting member 32 move in a direction of separation from each other, and the left limiting member 31 and the right limiting member 32 are separated from the T-beam 13.

[0027] The utility model provides a prefabricated T-beam 13 rapid splicing device, comprising a bridge erecting machine 1 installed on a bridgehead roadbed, a front beam crane 11, a rear beam crane 12 and a suspension mechanism 2, the front beam crane 11 and the rear beam crane 12 are movably installed on a sliding frame, a suspension mechanism 2 is arranged at the bottom of the front beam crane 11 and the rear beam crane 12, the suspension mechanism 2 comprises a suspension crossbeam 21 and a sling 22 arranged on the suspension crossbeam 21, a left limiting member 31, a right limiting member 32 and a driving member 35 are arranged on the suspension crossbeam 21, during the lifting, longitudinal movement and lateral movement of the T beam 13, the sling 22 can suspend and fix the T beam 13, the left limiting member 31 and the right limiting member 32 are respectively fixed on the opposite sides of the T beam 13, so that the T beam 13 can be fixed and restricted by the suspension crossbeam 21, the left limiting member 31 and the right limiting member 32, so that the T beam 13 can be kept horizontal during the movement.

[0028] In the present embodiment, preferably, the left limiting member 31 and the right limiting member 32 both include a vertical limiting plate 33, and the two vertical limiting plates 33 can be respectively fixed on both sides of the width direction of the T-beam 13, and a pressure block 34 is provided on the side where the vertical limiting plate 33 contacts the T-beam 13. There are multiple pressure blocks 34, and the multiple pressure blocks 34 are arranged in sequence at intervals along the length direction and the height direction of the vertical limiting plate 33, that is, at least two pressure blocks 34 are provided along the length direction of the vertical limiting plate 33, and at least two pressure blocks 34 are provided along the width direction of the vertical limiting plate 33. The pressure blocks 34 can be hardwood boards or fiber layer rubbers, so that the beam body can be protected.

[0029] In this embodiment, preferably, the driving component 35 includes a driving motor and a driving gear 36 connected to the driving motor, and the driving motor and the driving gear 36 are both arranged inside the suspension beam 21, a left motion beam 310 is arranged on the left limiting member 31, and a right limiting beam 320 is arranged on the right limiting member 32, and two parallel motion grooves 37 are arranged in the suspension beam 21, and the two motion grooves 37 are respectively arranged on both sides of the driving gear 36, and the left motion beam 310 and the right motion beam 320 are respectively slidably arranged in the motion grooves 37.

[0030] In this embodiment, preferably, a left tooth groove portion 311 is provided on the left moving beam 310, and a right tooth groove portion 321 is provided on the right moving beam 320. The left moving beam 310 and the right moving beam 320 are respectively located on opposite sides of the driving gear 36, and the left tooth groove portion 311 and the right tooth groove portion 321 are meshed with the driving gear 36. When the driving motor works to make the driving gear 36 rotate in the first direction, the driving gear 36 makes the left moving beam 310 and the right moving beam 320 move along the moving groove 37, and the two vertical limiting plates 33 move in a direction approaching each other until the two vertical limiting plates 33 are respectively fixed on both sides of the T-beam 13 to fix the T-beam 13. In this way, during the lifting, longitudinal movement and lateral movement of the T-beam 13, the vertical limiting plates 33 are clamped and fixed on both sides of the width direction of the T-beam 13 to keep the T-beam 13 horizontal.

[0031] In this embodiment, preferably, it also includes a pressing component 4, which is arranged on the suspension beam 21 and is used to press and fix the T-beam 13 that needs to be suspended. The pressing component 4 includes a pressing seat 40 and a pressing driving member 41. The pressing driving member 41 is installed on the suspension beam 21, and the pressing seat 40 is installed on the pressing driving member 41. The pressing seat 40 is driven by the pressing driving member 41 and can move up and down in the vertical direction to press the top of the T-beam 13. A pressing plate 42 is provided at the bottom of the pressing seat 40, and an elastic buffer 43 is provided between the pressing plate 42 and the pressing seat 40; a plurality of moving columns are provided on the pressing plate 42, and a moving through hole is correspondingly provided on the pressing seat 40. The lower end of the moving column is fixed on the pressing plate 42, and the upper end of the moving column is movably connected in the moving through hole. The elastic buffer 43 includes a spring member installed in the moving through hole, and the moving column can press the spring member along the moving through hole, so that the spring member The pressure plate 42 acts as an elastic buffer, thereby making elastic contact between the pressure plate 42 and the T-beam 13. It should be noted that the movement stroke of the moving column is very small. During use, when the left limiting member 31 and the right limiting member 32 are respectively clamped and fixed on both sides of the width direction of the T-beam 13, the pressure driving member 41 works, thereby making the pressure seat 40 and the pressure plate 42 move downward until the pressure plate 42 is pressed against the top of the T-beam 13. Conversely, during the disassembly process, the pressure driving member 41 works first, thereby making the pressure seat 40 and the pressure plate 42 move upward until the pressure plate 42 is separated from the T-beam 13. Subsequently, when the driving motor works to make the driving gear 36 rotate in the second direction (opposite to the first direction), the driving gear 36 makes the left moving beam 310 and the right moving beam 320 move along the moving groove 37, and the two vertical limiting plates 33 move in the direction of separation from each other, and the two vertical limiting plates 33 are separated from the T-beam 13.

[0032] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A prefabricated T-beam rapid splicing device, comprising a bridge erecting machine, a front beam crane and a rear beam crane installed on a bridgehead roadbed, wherein the front beam crane and the rear beam crane are movably installed on the bridge erecting machine, characterized in that: It also includes a suspension mechanism, a suspension mechanism is provided at the bottom of the front beam crane vehicle and the rear beam crane vehicle, the suspension mechanism includes a suspension beam and a sling arranged on the suspension beam, the suspension beam is connected to the front beam crane vehicle and the rear beam crane vehicle, the suspension beam is provided with a vertical beam, a sliding seat is provided on the top of the vertical beam, the sliding seat can be slidably installed on the sliding limiting beam of the bridge erection machine, and a limiting assembly is also provided on the suspension beam, the limiting assembly includes a relatively arranged left limiting member, a right limiting member and a driving component, the left limiting member and the right limiting member are slidably installed on the suspension beam, and the left limiting member and the right limiting member are driven by the driving component to fix and limit the T-beam that needs to be suspended.

2. The prefabricated T-beam rapid splicing device according to claim 1 is characterized in that: The left limiting member and the right limiting member both include vertical limiting plates, and the two vertical limiting plates can be fixed on both sides of the T-beam width direction respectively.

3. The prefabricated T-beam rapid splicing device according to claim 2 is characterized in that: A pressure block is arranged on one side of the vertical limiting plate contacting the T-beam. There are a plurality of pressure blocks, which are arranged in sequence and spaced apart along the length direction and the height direction of the vertical limiting plate.

4. The prefabricated T-beam rapid splicing device according to claim 3 is characterized in that: The driving component includes a driving motor and a driving gear connected to the driving motor. The left limiting member is provided with a left motion beam, the right limiting member is provided with a right motion beam, and two parallel motion grooves are provided in the suspension beam. The left motion beam and the right motion beam are respectively slidably provided in the motion grooves.

5. The prefabricated T-beam rapid splicing device according to claim 4 is characterized in that: The left moving beam is provided with a left tooth groove portion, and the right moving beam is provided with a right tooth groove portion. The left moving beam and the right moving beam are respectively located on opposite sides of the driving gear, and the left tooth groove portion and the right tooth groove portion are both meshed with the driving gear.

6. The prefabricated T-beam rapid splicing device according to claim 1 is characterized in that: It also includes a pressing component, which is arranged on the suspension beam and is used to press and fix the T-beam that needs to be suspended.

7. The prefabricated T-beam rapid splicing device according to claim 6, characterized in that: The pressing assembly includes a pressing seat and a pressing driving member, wherein the pressing driving member is mounted on the suspension beam, and the pressing seat is mounted on the pressing driving member. The pressing seat is driven by the pressing driving member and can move up and down in a vertical direction to press the top of the T-beam.

8. The prefabricated T-beam rapid splicing device according to claim 7 is characterized in that: A pressing plate is arranged at the bottom of the pressing seat, and an elastic buffer is arranged between the pressing plate and the pressing seat.

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