A ballastless track slab steel bar frame hoisting device

Abstract

The present invention relates to the technical field of high-speed railway track slab production, specifically to a ballastless track slab steel bar frame hoisting device, which includes a frame composed of rigid members, and a steel bar grasping device is fixed to the lower part of the rigid members. The frame composed of the rigid members is a rectangular frame, and longitudinal beams and transverse beams are arranged in the rectangular frame, and a steel bar grasping device is fixed to the lower parts of the longitudinal beams and the transverse beams. A steel bar positioning device is arranged at the lower part of the rectangular frame. The present invention realizes the problems of automatic grasping, positioning and installation of the ballastless track slab steel bar skeleton into the mold in the track slab production. The device has a high degree of automation, a simple structure, a low cost, high reliability, reduces the working intensity of workers, and improves the production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of high - speed railway track slab production, and particularly to a device for automatically grasping the reinforcing steel cage of a ballastless track slab and automatically positioning and installing it into a mold. Background Technique

[0002] During the production of high - speed railway ballastless track slabs by the pre - tensioning method, before the concrete is poured into the track slab mold, it is necessary to hoist and install a steel cage containing prestressed steel bars in the mold, then carry out the tensioning of the prestressed steel bars, and then proceed with the forming and pouring of the track slab. Since the steel cage is formed by bending and binding several single steel bars, and prestressed steel bars need to be arranged in between, the area and weight of the steel cage are relatively large. When hoisting, if the number of lifting points is too small, the steel bars of the cage are likely to be deformed. However, if too many lifting points are set, although the deformation is small, the tooling is cumbersome and requires a large amount of manpower and material resources to make it fit well with the mold. In the current process of producing ballastless track slabs by the pre - tensioning method, a high hoisting and installation efficiency of the steel cage of the track slab is required to ensure that the flow process is not affected.

[0003] Due to the irregular characteristics of the steel cage and the complex factor that prestressed steel bars are additionally arranged in it, there is currently no equipment that meets such technical requirements. Therefore, at present, a large amount of manpower and material resources are still needed to meet the actual application requirements. Summary of the Invention

[0004] The present invention provides a hoisting device for the steel frame of a ballastless track slab in view of the above problems.

[0005] A hoisting device for the steel frame of a ballastless track slab, characterized in that it includes a frame composed of rigid members, and a steel bar grasping device is fixed to the lower part of the rigid members.

[0006] The hoisting device for the steel frame of a ballastless track slab described above is characterized in that the frame composed of rigid members is a rectangular frame, longitudinal beams and transverse beams are arranged inside the rectangular frame, and a steel bar grasping device is fixed to the lower parts of the longitudinal beams and the transverse beams.

[0007] The hoisting device for the steel frame of a ballastless track slab described above is characterized in that a steel bar positioning device is arranged at the lower part of the rectangular frame.

[0008] The hoisting device for the steel frame of a ballastless track slab described above is characterized in that the positioning direction of the steel bar positioning device is the tensioning steel bar fixed to the ballastless track slab steel frame, and the grasping points / positions of the steel bar grasping device are several set points / positions on the tensioning steel bar fixed to the ballastless track slab steel frame.

[0009] The described ballastless track slab steel bar frame hoisting equipment is characterized in that the steel bar grasping device comprises a single-point grasping device and a double-point grasping device.

[0010] The described ballastless track slab steel bar frame hoisting equipment is characterized in that the steel bar positioning devices on the lateral main beams of the rectangular frame correspond one by one to the lateral tension steel bars fixed on the track slab steel bar frame, and the steel bar positioning devices on the end main beams of the rectangular frame correspond to the longitudinally double-row arranged tension steel bars fixed on the track slab steel bar frame.

[0011] The described ballastless track slab steel bar frame hoisting equipment is characterized in that the steel bar positioning devices on the lateral main beams of the rectangular frame correspond one by one to the lateral tension steel bars fixed on the track slab steel bar frame, and the steel bar positioning devices on the end main beams of the rectangular frame correspond to the longitudinally double-row arranged tension steel bars fixed on the track slab steel bar frame.

[0012] The described ballastless track slab steel bar frame hoisting equipment is characterized in that the rectangular frame comprises a main frame, a single-row tension steel bar positioning frame fixed on the main frame, and a double-row tension steel bar positioning frame placed on the single-row tension steel bar positioning frame. The steel bar positioning devices are fixed on the four main beams of the main frame, the single-point grasping device is fixed on the single-row tension steel bar positioning frame, and the double-point grasping device is fixed on the double-row tension steel bar positioning frame.

[0013] The described single-row tensioned steel bar positioning mechanism is based on the two concentric short-side sliding shafts arranged between three shaft seats in the two long-side directions of the main frame beam. The single-row sliding seat and the single-row perforated sliding seat are each provided with a through hole that matches the short-side sliding shaft and are installed on the short-side sliding shafts on the two long sides. Among them, a single-row cross beam is installed and connected between the two single-row sliding seats symmetrically installed on the two short-side sliding shafts, and a fixed hook is suspended from the lower edge of the single-row cross beam; a single-row cross beam is also installed and connected between the two single-row perforated sliding seats symmetrically installed on the two short-side sliding shafts, and a fixed hook is suspended from the lower edge of the single-row cross beam; the several single-row sliding seats or (and) single-row perforated sliding seats are fixedly connected to each other through several single-row tie rods or (and) single-row extended tie rods or (and) single-row circular tie rods passing through the single-row perforated sliding seats, and are connected and arranged in combination as I\I\I\I\II\I\I\II\I\I\II\I\II\I\II\I\I\II\II\I\II\II\II\II according to the orientation of the fixed hooks. The hooks and their fixing components in the I orientation are a connection action body, which is synchronously controlled and connected through single-row positioning oil cylinders symmetrically installed on the two shaft seat sides fixed to the I-direction end face, and slides along the two symmetrically arranged short-side sliding shafts; the hooks and their fixing components in the II orientation are a connection action body, which is synchronously controlled and connected through single-row positioning oil cylinders symmetrically installed on the two shaft seat sides fixed to the II-direction end face, and slides along the two symmetrically arranged short-side sliding shafts; preferably 3 fixed hooks are fixed to the lower edge of a single single-row cross beam, and the spacing is set according to the steel bar skeleton.

[0014] The double-row tensioned steel bar positioning mechanism is based on the three long-side sliding shafts arranged between two shaft seats in the three short-side directions of the main frame beam. The double-row sliding seats and the double-row perforated sliding seats are each provided with through holes that match the long-side sliding shafts and are installed on the long-side sliding shafts on the three short sides. Among them, two double-row cross beams are installed and connected between the three double-row sliding seats symmetrically installed on the three long-side sliding shafts, and fixed double hooks are suspended from the lower edge of the double-row cross beams; two double-row cross beams are also installed and connected between the three double-row perforated sliding seats symmetrically installed on the three long-side sliding shafts, and fixed double hooks are suspended from the lower edge of the double-row cross beams; the several double-row sliding seats or (and) double-row perforated sliding seats are fixedly connected to each other through several double-row tie rods or (and) double-row extended tie rods or (and) double-row circular tie rods passing through the double-row perforated sliding seats, and are connected and arranged in combination as III\IV\IV\IV\III\III\III\IV according to the orientation of the fixed double hooks. The hooks and their fixing components in the III orientation are a connecting action body, which is synchronously controlled and connected by three double-row positioning oil cylinders installed on the side of the three shaft seats fixed to the III-direction end face, and slides along the three symmetrically arranged long-side sliding shafts; the hooks and their fixing components in the IV orientation are a connecting action body, which is synchronously controlled and connected by three double-row positioning oil cylinders installed on the side of the three shaft seats fixed to the IV-direction end face, and slides along the three symmetrically arranged long-side sliding shafts; preferably, 3 fixed hooks are fixed to the lower edge of each single double-row cross beam, and the spacing is set according to the steel bar skeleton. Three hanger cross beams are also installed and connected between the second and third groups of double-row cross beams close to the outside in the III direction, and fixed hooks facing the IV direction are fixed to the lower edge of the hanger cross beams; three hanger cross beams are also installed and connected between the second and third groups of double-row cross beams close to the outside in the IV direction, and fixed hooks facing the III direction are fixed to the lower edge of the hanger cross beams;

[0015] Preferably, the spacing between the single-row cross beams of the single-row tensioned steel bar positioning mechanism is adapted to the spacing between the double-row cross beams of the double-row tensioned steel bar positioning mechanism, meeting the requirements of each action and not interfering with each other.

[0016] Preferably, the fixed hook is a steel plate bending shape with a J-shaped cross section, and the hook size is a groove that meets the diameter of the prestressed steel bar.

[0017] Preferably, the fixed double hook is a steel plate bending shape with a J-shaped cross section, and the hook positions are arranged in an inverted F shape, and the hook size is a groove that meets the diameter of the prestressed steel bar.

[0018] The positioning and storage pedestal for the steel reinforcement cage is a pedestal with legs. Positioning platforms are provided at the four corners and the middle of the long side of the pedestal. Guide positioning corners are also provided inside the positioning platforms at the four corners of the pedestal. A frame is also provided on one adjacent long side and one short side of the pedestal. Two tapered bodies are arranged along the center of the short side inside the pedestal, and the two tapered bodies conform to the outer shape structures of the two distal tapered bodies of the mold. Description of the Drawings

[0019] Figure 1 It is a three-dimensional schematic diagram of the present invention;

[0020] Figure 2 It is a three-dimensional view of the working state of the present invention;

[0021] Figure 3-1 It is a three-dimensional exploded view of the structure of the present invention;

[0022] Figure 3-2 It is the second exploded view;

[0023] Figure 3-3 It is the third exploded view;

[0024] Figure 4 It is a schematic diagram of the invention in which the steel bar framework is positioned on the steel reinforcement cage positioning and holding pedestal;

[0025] Figure 5 It is a schematic diagram of the invention's lifting and positioning device;

[0026] Figure 6 It is a schematic diagram of the invention's conical positioning device;

[0027] Figure 7 It is a schematic diagram of the invention's positioning plate;

[0028] Figure 8 It is a schematic diagram of the invention's fixed hook;

[0029] Figure 9 It is a schematic diagram of the invention's fixed double hook.

[0030] 1 - Tensioned steel bar positioning device, 2 - Single - row tensioned steel bar positioning mechanism, 3 - Double - row tensioned steel bar positioning mechanism, 4 - Steel cage positioning and storage pedestal, 5 - Steel cage, 6 - Mold, 101 - Main frame beam, 102 - Positioning plate, 103 - Lifting and positioning device, 104 - Cone positioning device, 105 - Axle seat, 106 - Suspension ring, 201 - Short - side sliding shaft, 202 - Single - row sliding seat, 203 - Single - row pull rod, 204 - Single - row circular pull rod, 205 - Single - row perforated sliding seat, 206 - Single - row extended pull rod, 207 - Single - row cross beam, 208 - Fixed hook, 209 - Single - row positioning oil cylinder, 301 - Long - side sliding shaft, 302 - Double - row sliding seat, 303 - Double - row pull rod, 304 - Double - row circular pull rod, 305 - Double - row extended pull rod, 306 - Double - row perforated sliding seat, 307 - Double - row positioning oil cylinder, 308 - Double - row cross beam, 309 - Fixed double hook, 310 - Hanger cross beam, 311 - Hook plate, 401 - Positioning table, 402 - Guide positioning angle, 403 - Cone body, 404 - Frame, 405 - Seat body, 103 - 1 - Lifting oil cylinder, 103 - 2 - Transition flange, 103 - 3 - Outer cylinder, 103 - 4 - Telescopic guide post, 103 - 5 - Side flange, 103 - 6 - Key, 103 - 7 - Ball, 104 - 1 - Second lifting cylinder, 104 - 2 - Outer cylinder body, 104 - 3 - Square flange, 104 - 4 - Second telescopic guide post, 104 - 5 - Flared opening. Detailed implementation mode

[0031] In order to avoid obscuring the present invention with unnecessary details, only the device structures and / or processing steps closely related to the solution of the present invention are shown in the drawings, while other details less related to the present invention are omitted.

[0032] As shown in Figure 3 - Figure 9 , a device for automatically grasping the reinforcing steel bar framework of a ballastless track slab and automatically positioning and installing it into a mold, characterized by including a tensioned steel bar positioning device 1, a single - row tensioned steel bar positioning mechanism 2, and a double - row tensioned steel bar positioning mechanism 3; it also includes a supporting steel cage positioning and storage pedestal 4. Among them,

[0033] The tensioned steel bar positioning device 1 includes: a main frame beam 101, a positioning plate 102, a lifting and positioning device 103, a cone positioning device 104, an axle seat 105, and a suspension ring 106.

[0034] The single - row tensioned steel bar positioning mechanism 2 includes: a short - side sliding shaft 201, a single - row sliding seat 202, a single - row pull rod 203, a single - row circular pull rod 204, a single - row perforated sliding seat 205, a single - row extended pull rod 206, a single - row cross beam 207, a fixed hook 208, and a single - row positioning oil cylinder 209.

[0035] The double-row tensioned steel bar positioning mechanism 3 includes: a long-side sliding shaft 301, a double-row sliding seat 302, double-row tie rods 303, double-row circular tie rods 304, double-row extended tie rods 305, double-row perforated sliding seats 306, double-row positioning oil cylinders 307, double-row cross beams 308, fixed double hooks 309, a hanger cross beam 310, and a hook plate 311. The steel cage positioning and placing pedestal 4 includes a positioning pedestal 401, a guiding positioning angle 402, a conical body 403, a frame 404, and a pedestal body 405.

[0036] As shown in Figure 3, the tensioned steel bar positioning device 1 has the main frame beam 101 as the basic frame. Positioning plates 102 with downward openings are arranged on the inner side of the periphery of the frame. A total of six lifting and positioning devices 103 are provided at the outer edges of the four corners and the outer edge of the middle section of the long side of the main frame beam 101. Axle seats 105 are also provided on the upper edges of the outer edges of the four corners and the middle section of the long side of the main frame beam 101. On the outer side of the long side of the main frame beam 101, near the corner ends, two pairs of lifting rings 106 are symmetrically arranged.

[0037] Preferably, the main frame beam 101 has a rectangular structure on the outer periphery, and beams for reinforcement are respectively arranged in the middle of the long side and the short side. Among them, a conical body positioning device 104 is arranged on the middle beam parallel to the long-side beam. There are two conical body positioning devices 104, which are symmetric with respect to the middle beam parallel to the short side, and the distance between the two conical body positioning devices 104 matches the distance between the conical bodies in the mold 6.

[0038] As Figure 5 , preferably, the lifting and positioning device 103 includes an outer cylinder 103-3 provided with a side flange 103-5 and a key 103-6 for connecting and fixing to the main frame beam 101. A transition flange 103-2 is also provided at the upper end of the outer cylinder 103-3. The upper end of the transition flange 103-2 is connected to a lifting oil cylinder 103-1 with a downward-facing piston rod. A telescopic guide post 103-4 is arranged inside the outer cylinder 103-3. The upper end of the telescopic guide post 103-4 is connected to the piston rod of the lifting oil cylinder 103-1, and a ball 103-7 is also provided at the lower end of the telescopic guide post 103-1.

[0039] As Figure 6 , preferably, the conical body positioning device 104 includes a square flange 104-3 arranged in the middle section of the outer cylinder body 104-2 for connecting and fixing to the main frame beam 101 body. A second lifting cylinder 104-1 with a downward-facing piston rod is arranged at the upper end of the outer cylinder body 104-2. A second telescopic guide post 104-4 is arranged inside the outer cylinder body 104-2. Preferably, the second telescopic guide post 104-4 is a hollow body, and the inner side of the lower edge is in the shape of a flared opening 104-5, and the angle of the flared opening 104-5 matches the conical body of the mold 5.

[0040] Preferably, the axle seat 105 has a rectangular shape, and through axle holes are provided on the upper side and the lower side of the adjacent surface, and the axle holes are perpendicular to each other at 90 degrees.

[0041] Preferably, the positioning plate 102 has a Y-shaped guiding opening at the lower end, and the opening transitions into a U-shaped groove that fits the diameter of the prestressed steel bar.

[0042] As shown in Figure 3, the single-row tensioned steel bar positioning mechanism 2 is based on the two concentric short-side sliding shafts 201 arranged between the three shaft seats 105 on the two long sides of the main frame beam 101. The single-row sliding seat 202 and the single-row perforated sliding seat 205 are each provided with a through-hole that matches the short-side sliding shaft 201 and are installed on the short-side sliding shafts 201 on the two long sides. Among them, a single-row cross beam 207 is installed and connected between the two single-row sliding seats 202 symmetrically installed on the two short-side sliding shafts 201, and a fixed hook 208 is suspended from the lower edge of the single-row cross beam 207; a single-row cross beam 207 is also installed and connected between the two single-row perforated sliding seats 205 symmetrically installed on the two short-side sliding shafts 201, and a fixed hook 208 is suspended from the lower edge of the single-row cross beam 207; the several single-row sliding seats 202 or (and) single-row perforated sliding seats 205 are fixedly connected to each other through several single-row tie rods 203 or (and) single-row extended tie rods 206 or (and) single-row circular tie rods 204 passing through the single-row perforated sliding seats 205. According to the orientation of the fixed hooks 208, they are connected and arranged in a combination of I\I\I\I\II\I\I\II\I\I\II\I\II\I\II\I\I\II\II\I\II\II\II\II. The hooks and their fixing components in the I orientation are a connecting action body, which is synchronously controlled and connected through the single-row positioning cylinders 209 symmetrically installed on the sides of the two shaft seats 105 fixed to the I-direction end face, and slides along the two symmetrically arranged short-side sliding shafts 201; the hooks and their fixing components in the II orientation are a connecting action body, which is synchronously controlled and connected through the single-row positioning cylinders 209 symmetrically installed on the sides of the two shaft seats 105 fixed to the II-direction end face, and slides along the two symmetrically arranged short-side sliding shafts 201; preferably, 3 fixed hooks are fixed to the lower edge of each single single-row cross beam 207, and the spacing is set according to the steel bar skeleton.

[0043] As shown in the figure, the double-row tensioned steel bar positioning mechanism 3 is based on the three long-side sliding shafts 301 arranged between two shaft seats 105 in the three short-side directions of the main frame beam 101. The double-row sliding seats 302 and the double-row perforated sliding seats 306 are each provided with through holes that match the long-side sliding shafts 301 and are installed on the long-side sliding shafts 301 on the three short sides. Among them, two double-row cross beams 308 are installed and connected between the three double-row sliding seats 302 symmetrically installed on the three long-side sliding shafts 301, and a fixed double hook 309 is suspended from the lower edge of the double-row cross beam 308; two double-row cross beams 308 are also installed and connected between the three double-row perforated sliding seats 306 symmetrically installed on the three long-side sliding shafts 301, and a fixed double hook 309 is suspended from the lower edge of the double-row cross beam 308; the several double-row sliding seats 302 or (and) double-row perforated sliding seats 306 are fixedly connected to each other through several double-row tie rods 303 or (and) double-row extended tie rods 305 or (and) double-row circular tie rods 304 passing through the double-row perforated sliding seats 306, and are connected and arranged in combination as III\IV\IV\IV\III\III\III\IV according to the orientation of the fixed double hook 309. The hooks and their fixing components in the III orientation are a connecting action body, which is synchronously controlled and connected by three double-row positioning oil cylinders 307 installed on the side of the three shaft seats 105 fixed to the III-direction end face, and slides along the three symmetrically arranged long-side sliding shafts 301; the hooks and their fixing components in the IV orientation are a connecting action body, which is synchronously controlled and connected by three double-row positioning oil cylinders 307 installed on the side of the three shaft seats 105 fixed to the IV-direction end face, and slides along the three symmetrically arranged long-side sliding shafts 301; preferably, 3 fixed hooks are fixed to the lower edge of the single double-row cross beam 308, and the spacing is set according to the steel bar skeleton. Three hanger cross beams 310 are also installed and connected between the second and third groups of double-row cross beams 308 close to the outside in the III direction, and a fixed hook 208 facing the IV direction is fixed to the lower edge of the hanger cross beam 310; three hanger cross beams 310 are also installed and connected between the second and third groups of double-row cross beams 308 close to the outside in the IV direction, and a fixed hook 208 facing the III direction is fixed to the lower edge of the hanger cross beam 310;

[0044] Preferably, the spacing between the single-row cross beams 207 of the single-row tensioned steel bar positioning mechanism 2 is adapted to the spacing between the double-row cross beams 308 of the double-row tensioned steel bar positioning mechanism 3, meeting the requirements of each automatic operation and not interfering with each other.

[0045] Preferably, the fixed hook 208 is a steel plate bending shape with a J-shaped cross section, and the hook size is a groove that meets the diameter of the prestressed steel bar.

[0046] Preferably, the fixed double hook 309 is a steel plate bending shape with a J-shaped cross section, and the hook positions are arranged in an inverted F shape, and the hook size is a groove that meets the diameter of the prestressed steel bar.

[0047] The described steel cage positioning and storage pedestal 4 is a pedestal body 405 with legs. Positioning platforms 401 are provided at the four corners and the middle of the long side of the pedestal body. Guide positioning corners 402 are also provided inside the positioning platforms 401 at the four corners of the pedestal body 405. A frame 404 is further provided on one adjacent long side and one short side of the pedestal body 405. Two conical bodies 403 are arranged along the center of the short side inside the pedestal body 405, and the two conical bodies 403 conform to the outer shape structures of the two distal cones of the mold 6.

[0048] The working process is as follows:

[0049] As Figure 1 shown in, the device for automatically grasping the ballastless track slab steel cage and automatically positioning and installing it into the mold in the present invention realizes automatic positioning from grasping the target steel cage to inside the mold 6 by the lifting device moving the device through connecting 4 lifting rings 106.

[0050] As shown in Fig. 3-4, the steel reinforcement cage 5 is positioned and placed in the steel reinforcement cage positioning pedestal 4. When the automatic grabbing of the ballastless track slab steel reinforcement skeleton of the present invention is implemented, the steps are as follows: The lifting device moves the device by connecting 4 lifting rings 106 to place the present invention above the steel reinforcement cage positioning pedestal 4. The lifting oil cylinder 103-1 of the lifting and positioning device 103 controls the telescopic guide post 103-4 to extend. The lifting cylinder II 104-1 of the conical positioning device 104 controls the telescopic guide post II 104-4 to extend, and makes the rod chamber and the rodless chamber of the lifting cylinder II 104-1 communicate, being in a floating state. Then it slowly descends. The lower edge inner side of the telescopic guide post II 104-4 provided in the conical positioning device 104 of the present invention is in a flared shape 104-5 to position the conical body 403 on the steel reinforcement cage positioning pedestal 4. When the balls 103-7 of the 6 lifting and positioning devices 103 contact the positioning table 401 on the steel reinforcement cage positioning pedestal 4, through the correction of the conical body 403 and the sliding fit of each ball 103-7, the docking of the present invention with the steel reinforcement cage positioning pedestal 4 is realized. Continue to work to grab the steel reinforcement cage and the prestressed steel bars. The lifting oil cylinder 103-1 descends synchronously, so that both ends of each prestressed steel bar pass through the positioning plate 102 and the lower end is in a Y-shaped guiding opening and enters the U-shaped groove of the positioning plate 102. When the lifting oil cylinder 103-1 synchronously descends to the set height, the hook and its fixing components in the I direction of the single-row tensioned steel bar positioning mechanism 2 are a connecting action body, and are synchronously controlled and connected by the single-row positioning oil cylinders 209 symmetrically installed on the sides of the two shaft seats 105 fixed on the I-direction end face, and slide along the two symmetrically arranged short-side sliding shafts 201 in the II direction. The hook and its fixing components in the II direction are a connecting action body, and are synchronously controlled and connected by the single-row positioning oil cylinders 209 symmetrically installed on the sides of the two shaft seats 105 fixed on the II-direction end face, and slide along the two symmetrically arranged short-side sliding shafts 201 in the I direction. The hook and its fixing components in the III direction of the double-row tensioned steel bar positioning mechanism 3 are a connecting action body, and are synchronously controlled and connected by the three double-row positioning oil cylinders 307 installed on the sides of the three shaft seats 105 fixed on the III-direction end face, and slide along the three symmetrically arranged long-side sliding shafts 301 in the III direction. The hook and its fixing components in the IV direction are a connecting action body, and are synchronously controlled and connected by the three double-row positioning oil cylinders 307 installed on the sides of the three shaft seats 105 fixed on the IV-direction end face, and slide along the three symmetrically arranged long-side sliding shafts 301 in the IV direction. The single-row tensioned steel bar positioning mechanism 2 and the double-row tensioned steel bar positioning mechanism 3 respectively realize the positioning of the prestressed steel bars by the fixed hooks 208 of the single-row cross beam 207 and the fixed double hooks 309 of the double-row cross beam 308. At the same time, it also realizes the positioning of the fabricating steel bars of the steel reinforcement cage by the fixed hook 208 fixed on the lower edge of the hanger cross beam 310. The lifting oil cylinder 103-1 rises synchronously, and all the steel reinforcement cages and the prestressed steel bars are automatically hooked and grabbed and lifted up.

[0051] As Figure 2-3. The hoisting equipment moves the equipment by connecting 4 lifting rings 106 to position the present invention above the mold 6. The lifting oil cylinder 103-1 of the lifting and positioning device 103 controls the telescopic guide post 103-4 to extend. The lifting oil cylinder II 104-1 of the conical positioning device 104 controls the telescopic guide post II 104-4 to extend, and makes the rod chamber and the rodless chamber of the lifting oil cylinder II 104-1 communicate with each other, being in a floating state. Then it slowly descends. The inner side of the lower edge of the telescopic guide post II 104-4 arranged in the conical positioning device 104 of the present invention is in a flared shape 104-5 to position the two distal cones on the mold 6. When the balls 103-7 of the 6 lifting and positioning devices 103 contact the upper edge of the side mold on the mold 6, through the correction of the two cones of the mold 6 and the sliding fit of each ball 103-7 at the same time, the positioning and docking of the present invention and the mold 6 are realized. After the external equipment docks the prestressed steel bars with the tension rods, it continues to work to position and install the steel reinforcement cage and the prestressed steel bars into the mold. The lifting oil cylinder 103-1 descends synchronously, so that the fixed hooks 208 of the single-row cross beam 207 and the fixed double hooks 309 of the double-row cross beam 308 are disengaged from the prestressed steel bars. At the same time, it also realizes the disengagement of the fixed hooks 208 fixed to the lower edge of the hanger cross beam 310 from the fabricated steel bars of the steel reinforcement cage. When the lifting oil cylinder 103-1 descends synchronously to the set height, the hook and its fixing components facing I of the single-row tensioned steel bar positioning mechanism 2 are a connecting action body, and are synchronously controlled and connected by the single-row positioning oil cylinders 209 symmetrically installed on the sides of the two shaft seats 105 fixed to the I-direction end face, and slide along the two symmetrically arranged short-side sliding shafts 201 in the I direction. The hook and its fixing components facing II are a connecting action body, and are synchronously controlled and connected by the single-row positioning oil cylinders 209 symmetrically installed on the sides of the two shaft seats 105 fixed to the II-direction end face, and slide along the two symmetrically arranged short-side sliding shafts 201 in the II direction. The hook and its fixing components facing III of the double-row tensioned steel bar positioning mechanism 3 are a connecting action body, and are synchronously controlled and connected by the three double-row positioning oil cylinders 307 installed on the sides of the three shaft seats 105 fixed to the III-direction end face, and slide along the three symmetrically arranged long-side sliding shafts 301 in the IV direction. The hook and its fixing components facing IV are a connecting action body, and are synchronously controlled and connected by the three double-row positioning oil cylinders 307 installed on the sides of the three shaft seats 105 fixed to the IV-direction end face, and slide along the three symmetrically arranged long-side sliding shafts 301 in the III direction. The single-row tensioned steel bar positioning mechanism 2 and the double-row tensioned steel bar positioning mechanism 3 respectively realize the separation of the fixed hooks 208 of the single-row cross beam 207 and the fixed double hooks 309 of the double-row cross beam 308 from the prestressed steel bars. At the same time, it also realizes the separation of the fixed hooks 208 fixed to the lower edge of the hanger cross beam 310 from the fabricated steel bars of the steel reinforcement cage. The lifting oil cylinder 103-1 rises synchronously to position and install the steel reinforcement cage in the mold 6.

[0052] The present invention realizes the problem of automatically grasping and positioning and installing the steel bar framework of the ballastless track slab in the production of the track slab. The equipment has a high degree of automation, a simple structure, low cost, high reliability, reduces the labor intensity of workers, and improves the production efficiency.

Claims

1. A ballastless track slab steel bar frame hoisting device, characterized in that It includes a frame composed of rigid members, with a steel bar grabbing device fixed to the lower part of the rigid members. The frame composed of rigid members is a rectangular frame. Longitudinal beams and transverse beams are arranged inside the rectangular frame, and a steel bar grabbing device is fixed to the lower part of the longitudinal beams and transverse beams. A steel bar positioning device is arranged at the lower part of the rectangular frame, and the positioning direction of the steel bar positioning device is the tension steel bar fixed integrally with the track slab steel bar frame. The grabbing points / positions of the steel bar grabbing device are several set points / positions on the tension steel bar fixed integrally with the track slab steel bar frame. The hoisting equipment further includes a tension steel bar positioning device (1), a single-row tension steel bar positioning mechanism (2), and a double-row tension steel bar positioning mechanism (3); it also includes a supporting steel bar cage positioning and placing pedestal (4). The tension steel bar positioning device (1) includes: a main frame beam (101), a positioning plate (102), a lifting and positioning device (103), a cone positioning device (104), a shaft seat (105), and a lifting ring (106). The single-row tension steel bar positioning mechanism (2) includes: a short-side sliding shaft (201), a single-row sliding seat (202), a single-row pull rod (203), a single-row circular pull rod (204), a single-row perforated sliding seat (205), a single-row extended pull rod (206), a single-row cross beam (207), a fixed hook (208), and a single-row positioning oil cylinder (209). The double-row tension steel bar positioning mechanism (3) includes: a long-side sliding shaft (301), a double-row sliding seat (302), a double-row pull rod (303), a double-row circular pull rod (304), a double-row extended pull rod (305), a double-row perforated sliding seat (306), a double-row positioning oil cylinder (307), a double-row cross beam (308), a fixed double hook (309), a hanger cross beam (310), and a hook plate (311). The steel bar cage positioning and placing pedestal (4) includes: a positioning table (401), a guiding and positioning angle (402), a cone (403), a frame (404), and a pedestal body (405). The tension steel bar positioning device (1) is based on the main frame beam (101) as the basic frame. A positioning plate (102) with a downward opening is arranged on the inner side of the periphery of the frame. A total of six lifting and positioning devices (103) are arranged at the outer edges of the four corners and the middle position of the long side of the main frame beam (101). Shaft seats (105) are also arranged at the upper edges of the outer edges of the four corners and the middle position of the long side of the main frame beam (101); Two pairs of hoisting rings (106) are symmetrically arranged at the outer side of the long side of the main frame beam (101) near the corner ends; The main frame beam (101) has a rectangular structure on the outer periphery, and beams for strengthening are respectively arranged in the middle of the long side and the short side. A cone positioning device (104) is arranged on the middle beam parallel to the long-side beam. There are two cone positioning devices (104), which are symmetric with respect to the middle beam parallel to the short side, and the distance between the two cone positioning devices (104) matches the distance between the cones in the mold (6). The lifting and positioning device (103) described above includes an outer cylinder (103-3) provided with a side flange (103-5) and a key (103-6) for connecting and fixing to the main frame beam (101). The upper end of the outer cylinder (103-3) is also provided with a transition flange (103-2). A lifting cylinder (103-1) with a piston rod facing downwards is connected to the upper end of the transition flange (103-2). A telescopic guide post (103-4) is arranged inside the outer cylinder (103-3). The upper end of the telescopic guide post (103-4) is connected to the piston rod of the lifting cylinder (103-1), and a ball (103-7) is also arranged at the lower end of the telescopic guide post (103-1). The cone positioning device (104) includes a square flange (104-3) arranged in the middle section of an outer cylinder body (104-2) for connecting and fixing to the main frame beam (101) body. A second lifting cylinder (104-1) with a piston rod facing downwards is arranged at the upper end of the outer cylinder body (104-2). A second telescopic guide post (104-4) is arranged inside the outer cylinder body (104-2). The second telescopic guide post (104-4) is a hollow body, and the inner side of the lower edge is in the shape of a flared opening (104-5). The angle of the flared opening (104-5) matches the cone of the mold (6).

2. The ballastless track slab steel bar frame hoisting equipment according to claim 1, characterized in that The steel bar grasping device described above includes a single-point grasping device and a double-point grasping device.

3. The lifting device for the rebar framework of the ballastless track slab according to claim 2, characterized in that The steel bar positioning devices on the lateral main beams of the rectangular frame correspond one-to-one with the lateral tensioned steel bars fixed on the track slab steel bar frame, and the steel bar positioning devices on the end main beams of the rectangular frame correspond to the longitudinally double-row arranged tensioned steel bars fixed on the track slab steel bar frame.

4. The lifting device for the steel bar frame of the ballastless track slab according to claim 3, characterized in that The steel bar positioning devices on the lateral main beams of the rectangular frame correspond one-to-one with the lateral tensioned steel bars fixed on the track slab steel bar frame, and the steel bar positioning devices on the end main beams of the rectangular frame correspond to the longitudinally double-row arranged tensioned steel bars fixed on the track slab steel bar frame.

5. The erection equipment for the steel bar framework of the ballastless track slab according to claim 4, characterized in that The rectangular frame described above includes a main frame (101), a single-row tensioned steel bar positioning mechanism (2) fixed on the main frame, a double-row tensioned steel bar positioning mechanism (3) placed on the single-row tensioned steel bar positioning frame. The steel bar positioning devices are fixed on the four main beams of the main frame. The single-point grasping device is fixed on the single-row tensioned steel bar positioning frame, and the double-point grasping device is fixed on the double-row tensioned steel bar positioning frame.

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