A PC track beam evacuation channel construction vehicle

Abstract

The present invention discloses a construction vehicle for PC rail beam evacuation passages, comprising a vehicle frame, a traveling mechanism, a guide mechanism, and a lifting assembly. The vehicle frame includes longitudinal beams and transverse beams. The vehicle is characterized by further comprising: a load-bearing force conversion assembly for lifting the construction vehicle from the rail beam, separating the traveling mechanism from the rail beam, and supporting the construction vehicle on the rail beam; and a parking lock assembly for allowing the construction vehicle to be detachably connected to the rail beam. The construction vehicle of the present invention can automatically travel on already installed rail beams and is also applicable to curved rail beams. It can stably and safely hoist and construct steel transverse and longitudinal beams as a whole, saving time and effort and increasing construction efficiency.

Description

Technical Field

[0001] The invention belongs to the field of engineering construction machinery, and particularly relates to a PC track beam evacuation channel construction operation vehicle. Background Art

[0002] A straddle-type monorail system is one in which vehicles travel directly astride the track beams. Sections typically utilize elevated spans, laid out midway along the road. The track beams are arranged in two lines, with an evacuation passageway located between them. This passageway consists of steel crossbeams, steel longitudinal beams, and an evacuation platform. The steel crossbeams are welded to the track beams using pre-embedded steel plates, while the steel longitudinal beams are welded to the steel crossbeams. The evacuation platform is a T-shaped structure welded to the top surface of the steel crossbeams.

[0003] Existing treatment technologies primarily involve welders using scaffolding or aerial platforms, and steel being lifted using truck cranes. These traditional methods are inefficient, unsafe, time-consuming, and labor-intensive, and they require lane closures, significantly impacting traffic. Summary of the Invention

[0004] In response to the above problems, the present invention provides a PC track beam evacuation channel construction work vehicle. The work vehicle of the present invention can automatically travel on the installed track beam, and can also be applied to curved track beams. It can stably and safely lift and construct steel cross beams and steel longitudinal beams as a whole, saving time and labor and increasing construction efficiency.

[0005] The present invention is achieved through the following technical solutions.

[0006] A PC rail beam evacuation channel construction vehicle includes a vehicle frame, a traveling mechanism, a guide mechanism, and a lifting assembly. The vehicle frame includes longitudinal beams and transverse beams, and is characterized in that it also includes:

[0007] A load-bearing force conversion component is used to lift the work vehicle from the track beam to separate the walking mechanism from the track beam and support the work vehicle on the track beam, and a parking lock component is used to allow the work vehicle to be detachably connected and fixed to the track beam.

[0008] As a specific technical solution, the load-bearing force conversion assembly includes a sleeve arranged on the longitudinal beam, a screw rod passing through the sleeve and threadedly connected to the sleeve, a handle wheel arranged at the top end of the screw rod, and a support base plate arranged at the bottom end of the screw rod.

[0009] As a specific technical solution, the parking lock assembly includes an inverted T-shaped rod, a splint with multiple groups of adjustment holes at the bottom end, a removable lower pin shaft inserted into the adjustment hole, and a locking nut; the two ends of the cross bar of the inverted T-shaped rod pass through the vertical sliding grooves opened on the side walls of the longitudinal beam and are hingedly connected to the splint, and the longitudinal bar of the inverted T-shaped rod passes through the top wall of the longitudinal beam and is threadedly connected to the locking nut.

[0010] As a specific technical solution, the guide mechanism includes a guide wheel frame, a stabilizing wheel arranged in the guide wheel frame and sliding along the outer side surface of the track beam, a lateral limit adjustment component for adjusting the distance between the stabilizing wheel and the outer side surface of the track beam, and a vertical adjustment bracket for adjusting the vertical height of the stabilizing wheel.

[0011] As a specific technical solution, the vertical adjustment bracket includes a fixed rod for fixing the guide mechanism, a vertical adjustment rod with one end connected to the lateral limit adjustment assembly and the other end movably connected to the fixed rod; a plurality of adjustment holes are provided at the top end of the vertical adjustment rod, and a bolt that cooperates with the adjustment hole is provided at the connecting end of the fixed rod and the vertical adjustment rod.

[0012] As a specific technical solution, the guide wheel frame includes a wheel shell, a main connecting rod, a secondary connecting rod, and a limit bolt; the lateral limit adjustment assembly includes a base connected to the vertical adjustment bracket, a spring groove opened on the base, and an adjustment spring arranged in the spring groove; one end of the adjustment spring extends to the outside of the spring groove and is fixedly connected to the wheel shell, and the other end is fitted with the bottom of the spring groove; one end of the main connecting rod is fixedly connected to the wheel shell, and the other end passes through the inside of the adjustment spring and can slide through to the outside of the base and is threadedly connected to the limit bolt; one end of the secondary connecting rod is fixedly connected to the wheel shell, and the other end passes through the base and is slidably connected to the base.

[0013] As a specific technical solution, the walking mechanism includes a walking wheel frame, a load-bearing wheel arranged in the walking wheel frame and sliding along the top surface of the track beam, a walking drive device arranged on the walking wheel frame for rotating the load-bearing wheel, a joint bearing arranged on the top of the walking wheel frame, and a pin shaft connected to the bottom of the longitudinal beam at the top and the bottom of the pin shaft connected to the joint bearing at the bottom.

[0014] As a specific technical solution, the lifting assembly includes a main beam that can slide longitudinally on the frame, an electric hoist slidably connected to the main beam, guide rails arranged on both sides of the frame, end beams arranged at both ends of the main beam, and a driving trolley arranged in the end beam and capable of sliding along the guide rails.

[0015] As a specific technical solution, a construction platform and guardrails are provided around the frame.

[0016] As a specific technical solution, a protective roof is provided on the top of the frame.

[0017] 1) The construction vehicle of the present invention is safer and more reliable than ground-lifting operations using a car, reduces the floor space occupied by the construction operation, and reduces the impact of construction on traffic on roads with limited width. It is very suitable for the construction of straddle-type monorail projects currently laid in the road.

[0018] 2) The construction vehicle of the present invention can simultaneously meet the requirements of both straight beam and curved beam construction and has strong applicability.

[0019] 3) The construction vehicle of the present invention can realize multi-point simultaneous construction operations by adding an installation platform. Compared with conventional construction methods, it can greatly reduce the investment in mechanical equipment such as mobile cranes, save construction costs and improve construction efficiency.

[0020] 4) The construction vehicle of this invention features a construction platform around its frame. Secured to the track beam via a parking lock assembly, it provides a wide working surface. During construction, the hoisted components also serve as a platform for workers, ensuring high safety and convenient operation. The spacious workspace and platform ensure a high degree of welding and installation quality. A protective canopy is installed on the top of the construction vehicle, enabling all-weather construction, regardless of seasonal impacts such as the rainy season. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the construction vehicle of the present invention;

[0022] Figure 2 This is a front view of the construction vehicle of the present invention;

[0023] Figure 3 A top view of the construction vehicle of the present invention;

[0024] Figure 4 It is a left side view of the construction vehicle of the present invention;

[0025] Figure 5 This is a schematic structural diagram of a load-bearing force conversion assembly in a construction vehicle of the present invention;

[0026] Figure 6 A schematic diagram of the use of a parking lock assembly in a construction vehicle of the present invention;

[0027] Figure 7 This is a front view of the traveling mechanism and the guide mechanism of the construction vehicle of the present invention;

[0028] Figure 8 This is a schematic structural diagram of the guide mechanism in the construction vehicle of the present invention;

[0029] Figure 9 This is a front view of the guide mechanism in the construction vehicle of the present invention;

[0030] Figure 10 It is a schematic diagram of the three-dimensional structure of the lifting assembly in the construction vehicle of the present invention;

[0031] The meanings of the symbols in the above figure are:

[0032] 1-frame, 101-longitudinal beam, 1011-vertical slide, 102-cross beam, 103-construction platform, 104-guardrail, 105-protective roof;

[0033] 2-travel mechanism, 201-travel wheel frame, 202-spherical bearing, 203-pin shaft, 204-load-bearing wheel, 205-travel drive device;

[0034] 3-guide mechanism, 301-guide wheel frame, 3011-wheel housing, 3012-main connecting rod, 3013-limit bolt, 302-stabilizing wheel, 303-lateral limit adjustment assembly, 3031-base, 3032-spring slot, 3033-adjustment spring, 304-vertical adjustment bracket, 3041-fixing rod, 3042-vertical adjustment rod;

[0035] 4-weight-bearing force conversion assembly, 401-sleeve, 402-screw, 403-handle wheel, 404-support base plate;

[0036] 5-parking lock assembly, 501-inverted T-bar, 502-clamp, 503-lower pin, 504-locking nut;

[0037] 6- lifting assembly, 601- main beam, 602- electric hoist, 603- end beam, 604- guide rail, 605- driving trolley;

[0038] 7-Track beam. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Example 1

[0040] A PC track beam evacuation channel construction vehicle, please refer to Figures 1 to 4 , including a frame 1, a traveling mechanism 2, a guide mechanism 3, a lifting assembly 6, a load-bearing force conversion assembly 4 for lifting the work vehicle from the track beam 7 to separate the traveling mechanism 2 from the track beam 7 and support the work vehicle on the track beam 7, and a parking lock assembly 5 for allowing the work vehicle to be detachably connected and fixed to the track beam 7; wherein, the frame 1 includes a longitudinal beam 101 and a transverse beam 102, and the longitudinal beam 101 and the transverse beam 102 are connected to form a frame structure with a hoisting and installation construction space inside.

[0041] Further, in a preferred embodiment, see Figures 1 to 5The load-bearing force conversion assembly 4 includes a sleeve 401 arranged on the longitudinal beam 101, a screw 402 that passes through the sleeve 401 and is threadedly connected to the sleeve 401, a handle wheel 403 arranged at the top of the screw 402, and a support base plate 404 arranged at the bottom of the screw 402; when the construction vehicle travels to the position where hoisting construction is required, the travel drive device 205 is controlled to brake and the construction vehicle is parked at the construction position. After that, the load-bearing force conversion assembly 4 can be controlled to lift the construction vehicle from the track beam 7 to disengage the travel mechanism 2. The construction vehicle is separated from the track beam 7 and supported on the track beam 7; specifically, the handle wheel 403 is rotated to drive the screw 402 to rotate, and the support base plate 404 is pushed downward to contact the track beam 7 to bear the force, thereby lifting the construction vehicle and converting the load-bearing force; in the process of hoisting construction, only the walking mechanism 2 is used for force support. First, the stability of the frame 1 cannot be guaranteed, and second, the large load-bearing force can easily damage the walking mechanism 2. By converting the load-bearing force, the walking mechanism 2 can be avoided from being subjected to force, which can better solve the above problems.

[0042] Further, in a preferred embodiment, see Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 6 The parking lock assembly 5 includes an inverted T-shaped rod 501, a clamping plate 502 with multiple groups of adjustment holes at the bottom end, a lower pin 503 detachably inserted into the adjustment hole, and a locking nut 504; both ends of the cross bar of the inverted T-shaped rod 501 pass through the vertical sliding grooves 1011 opened on the side wall of the longitudinal beam 101 and are hingedly connected to the clamping plate 502, and the longitudinal rod of the inverted T-shaped rod 501 passes through the top wall of the longitudinal beam 101 and is threadedly connected to the locking nut 504; in the above structure, the lower pin 503 cooperates with the clamping plate 502 with multiple groups of adjustment holes to realize the preliminary connection between the parking lock assembly 5 and the track beam 7, and then the inverted T-shaped rod 501 and the locking nut 504 can be used to further connect and fix the parking lock assembly 5 to the track beam 7;

[0043] For specific construction, please refer to Figure 6After the cam 503 is lifted, the cam 503 is tightened to the bottom of the track beam 7.

[0044] For further information, see Figure 4 、 Figure 7 In order to make the guide mechanism 3 adaptable to slight changes in the track span and track beams of different heights, in a preferred embodiment, the guide mechanism 3 includes a guide wheel frame 301, a stabilizing wheel 302 arranged in the guide wheel frame 301 and sliding along the outer side of the track beam 7, a lateral limit adjustment component 303 for adjusting the distance between the stabilizing wheel 302 and the outer side of the track beam 7, and a vertical adjustment bracket 304 for adjusting the vertical height of the stabilizing wheel 302; in the above structure, the vertical adjustment bracket 304 can adjust the vertical height of the stabilizing wheel 302 to adapt to track beams of different heights; the lateral limit adjustment component 303 can adjust the distance between the stabilizing wheel 302 and the outer side of the track beam 7 to prevent the stabilizing wheel 302 from slipping and the construction vehicle from running off when moving.

[0045] Further, in a preferred embodiment, see Figure 4 、 Figure 7 The vertical adjustment bracket 304 includes a fixed rod 3041 for fixing the guide mechanism 3, a vertical adjustment rod 3042 with one end connected to the lateral limit adjustment assembly 303 and the other end movably connected to the fixed rod 3041; a plurality of adjustment holes are provided at the top of the vertical adjustment rod 3042, and bolts that cooperate with the adjustment holes are provided at the connecting ends of the fixed rod 3041 and the vertical adjustment rod 3042.

[0046] Further, in a preferred embodiment, see Figure 4 、 Figure 7 、 Figure 8 、 Figure 9The guide wheel frame 301 includes a wheel shell 3011, a main connecting rod 3012, a secondary connecting rod 3014, and a limit bolt 3013; the lateral limit adjustment assembly 303 includes a base 3031 connected to the vertical adjustment bracket 304, a spring groove 3032 opened on the base 3031, and an adjustment spring 3033 arranged in the spring groove 3032; one end of the adjustment spring 3033 extends to the outside of the spring groove 3032 and is fixedly connected to the wheel shell 3011, and the other end is fitted with the bottom of the spring groove 3032; one end of the main connecting rod 3012 is fixedly connected to the wheel shell 3011, and the other end passes through the inside of the adjustment spring 3033, slidably penetrates to the outside of the base 3031 and is threadedly connected to the limit bolt 3013; one end of the secondary connecting rod 3014 is fixedly connected to the wheel shell 3011, and the other end penetrates the base 3031 and is slidably connected to the base 3031.

[0047] Furthermore, in order to realize that the construction vehicle can travel on different linear straight beams and curved beams, in a preferred embodiment, please refer to Figure 4 、 Figure 7 The walking mechanism 2 includes a walking wheel frame 201, a load-bearing wheel 204 arranged in the walking wheel frame 201 and sliding along the top surface of the track beam 7, a walking drive device 205 arranged on the walking wheel frame 201 for rotating the load-bearing wheel 204, a joint bearing 202 arranged on the top of the walking wheel frame 201, and a pin shaft 203 with the top end connected to the bottom of the longitudinal beam 101 and the bottom end connected to the joint bearing 202.

[0048] Further, in a preferred embodiment, see Figure 1 、 Figure 10 The lifting assembly 6 includes a main beam 601 that can slide longitudinally on the frame 1, an electric hoist 602 slidably connected to the main beam 601, guide rails 604 arranged on both sides of the frame 1, end beams 603 arranged at both ends of the main beam 601, and a driving trolley 605 arranged in the end beam 603 and capable of sliding along the guide rails 604.

[0049] Further, in a preferred embodiment, see Figure 4 A construction platform 103 and a guardrail 104 are provided around the frame 1.

[0050] Further, in a preferred embodiment, see Figure 4 A protective roof 105 is provided on the top of the frame 1.

[0051] The working process of the construction vehicle of the present invention is as follows:

[0052] First, install the construction vehicle on the track beam 7, using the track beam 7 as the walking track;

[0053] After the construction vehicle is installed, the traveling mechanism 2 controls the construction vehicle to travel along the track beam 7 to the construction position, and then lowers the clamping plates 502 so that the clamping plates 502 clamp both sides of the track beam 7. Then, the position of the lower pin 503 is adjusted through the adjustment holes provided on the clamping plates 502 so that the lower pin 503 is as close to or in contact with the bottom of the track beam 7 as possible for preliminary connection.

[0054] The load-bearing force conversion component 4 is controlled, and the handle wheel 403 is rotated to drive the screw rod 402 to rotate, and the support base plate 404 is pushed downward to contact the track beam 7 to bear the force, thereby lifting the construction vehicle and performing the load-bearing force conversion, so that the load-bearing wheels are not stressed during the construction hoisting process; then, the inverted T-shaped rod 501 is driven by adjusting the locking nut 504, so that the cross bar of the inverted T-shaped rod 501 is lifted upward along the vertical slide groove 1011, and then the clamping plate 502 and the lower pin shaft 503 are driven upward in turn, so that the bottom and top of the track beam 7 are respectively tightened by the lower pin shaft 503 and the support base plate 404, so that the construction vehicle remains stable;

[0055] The steel crossbeams and longitudinal beams of the evacuation passage that need to be welded on site are pre-assembled on the installation platform in the factory and fixed with spot welding. The steel crossbeams and longitudinal beams are cut according to the real-time measurement data on site to ensure that the dimensions are accurately matched with the site, and then transported to the construction site by car.

[0056] The installation platform including the steel cross beams and longitudinal beams is hoisted to the designated location using the lifting assembly 6 on the construction vehicle. The installation platform is then temporarily fixed to the track beam 7 and used as a work platform for workers to install and weld the steel cross beams and longitudinal beams, thus completing the installation of one section of the evacuation passage.

[0057] The load-bearing force conversion component 4 is controlled in sequence to convert the force so that the load-bearing wheels are subjected to force, and the parking lock component 5 is detached from the track beam. After that, the construction vehicle can be controlled to move to the location of the next section of the evacuation passage to be installed, and the parking lock, load-bearing force conversion, hoisting of another installation platform including steel beams, steel longitudinal beams, etc., welding and installation, etc. are carried out in sequence. The cycle operation is carried out in sequence;

[0058] When all evacuation passages are welded and installed, the temporary fixed installation platform is lowered to the road surface using a construction vehicle and transported back to the factory for recycling.

Claims

1. A PC rail beam evacuation channel construction vehicle, comprising a vehicle frame (1), a traveling mechanism (2), a guide mechanism (3), and a lifting assembly (6), wherein the vehicle frame (1) comprises a longitudinal beam (101) and a transverse beam (102), and is characterized in that Also includes: A load-bearing force conversion assembly (4) for lifting the work vehicle from the track beam (7) to separate the traveling mechanism (2) from the track beam (7) and supporting the work vehicle on the track beam (7), the load-bearing force conversion assembly (4) comprising a shaft sleeve (401) disposed on the longitudinal beam (101), a screw (402) passing through the shaft sleeve (401) and threadedly connected to the shaft sleeve (401), a handle wheel (403) disposed at the top end of the screw (402), and a support base plate (404) disposed at the bottom end of the screw (402); A parking lock assembly (5) for enabling a work vehicle to be detachably connected and fixed to a track beam (7), the parking lock assembly (5) comprising an inverted T-shaped rod (501), a clamping plate (502) with a plurality of adjustment holes provided at the bottom end, a lower pin shaft (503) detachably inserted into the adjustment holes, and a locking nut (504); both ends of the transverse rod of the inverted T-shaped rod (501) pass through vertical slide grooves (1011) provided on the side walls of the longitudinal beam (101) and are hingedly connected to the clamping plate (502); and the longitudinal rod of the inverted T-shaped rod (501) passes through the top wall of the longitudinal beam (101) and is threadedly connected to the locking nut (504); The guide mechanism (3) comprises a guide wheel frame (301), a stabilizing wheel (302) arranged in the guide wheel frame (301) and sliding along the outer side surface of the track beam (7), a transverse limit adjustment component (303) for adjusting the distance between the stabilizing wheel (302) and the outer side surface of the track beam (7), and a vertical adjustment bracket (304) for adjusting the vertical height of the stabilizing wheel (302); the guide wheel frame (301) comprises a wheel housing (3011), a main connecting rod (3012), a secondary connecting rod (3014), and a limit bolt (3013); the transverse limit adjustment component (303) comprises a base (3031) connected to the vertical adjustment bracket (304), and a vertical adjustment bracket (304) is provided on the base (3031). A spring groove (3032) is provided, and an adjusting spring (3033) is arranged in the spring groove (3032); one end of the adjusting spring (3033) extends to the outside of the spring groove (3032) and is fixedly connected to the wheel housing (3011), and the other end is in contact with the bottom of the spring groove (3032); one end of the main connecting rod (3012) is fixedly connected to the wheel housing (3011), and the other end passes through the inside of the adjusting spring (3033), slidably penetrates to the outside of the base (3031), and is threadedly connected to the limit bolt (3013); one end of the secondary connecting rod (3014) is fixedly connected to the wheel housing (3011), and the other end passes through the base (3031) and is slidably connected to the base (3031).

2. A PC rail beam evacuation channel construction vehicle as claimed in claim 1, characterized in that The vertical adjustment bracket (304) comprises a fixing rod (3041) for fixing the guide mechanism (3), a vertical adjustment rod (3042) having one end connected to the lateral limit adjustment assembly (303) and the other end movably connected to the fixing rod (3041); a plurality of adjustment holes are provided at the top end of the vertical adjustment rod (3042), and bolts that cooperate with the adjustment holes are provided at the connecting ends of the fixing rod (3041) and the vertical adjustment rod (3042).

3. A PC rail beam evacuation channel construction vehicle as claimed in claim 1, characterized in that The walking mechanism (2) comprises a walking wheel frame (201), a load-bearing wheel (204) arranged in the walking wheel frame (201) and sliding along the top surface of the track beam (7), a walking drive device (205) arranged on the walking wheel frame (201) for rotating the load-bearing wheel (204), a joint bearing (202) arranged on the top of the walking wheel frame (201), and a pin shaft (203) having a top end connected to the bottom of the longitudinal beam (101) and a bottom end connected to the joint bearing (202).

4. A PC rail beam evacuation channel construction vehicle as claimed in claim 1, characterized in that The lifting assembly (6) includes a main beam (601) that can slide longitudinally on the frame (1), an electric hoist (602) slidably connected to the main beam (601), guide rails (604) arranged on both sides of the frame (1), end beams (603) arranged at both ends of the main beam (601), and a driving trolley (605) arranged in the end beam (603) and capable of sliding along the guide rails (604).

5. A PC rail beam evacuation channel construction vehicle as claimed in claim 1, characterized in that A construction platform (103) and guardrails (104) are provided around the vehicle frame (1).

6. A PC rail beam evacuation channel construction vehicle according to any one of claims 1 to 5, characterized in that A protective roof (105) is provided on the top of the vehicle frame (1).

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