Segmental T-beam rapid splicing positioning trolley

Abstract

The present application relates to the field of segment T beam processing, in particular to a kind of segment T beam fast splicing positioning trolley, including frame, base plate, lifting plate, lifting hydraulic cylinder, U-shaped frame, positioning mechanism, adjusting mechanism, moving wheel and guide rail;The present application solves the problem that it is difficult to realize accurate adjustment to six directions of front and back, up and down, left and right and perpendicularity in the process of segment T beam positioning butt joint, solves the problem that general hoisting equipment cannot realize fast and accurate butt joint segment T beam, solves the problem that T beam splicing realizes factory, mechanization construction while improving the safety of segment T beam positioning splicing operation, saves time and labor cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of segment T beam processing, in particular to a segment T beam rapid splicing positioning trolley. BACKGROUND

[0002] In the construction of highway bridges in China, more than 90% are medium and small span bridges, among which T beam is the most widely used structural form. At present, T beam is generally prefabricated in a prefabrication yard and installed on site, but the length of the component is too large, causing difficulty in road transportation, and the supply range of the prefabrication yard is greatly limited. The prefabricated segmental T beam has simple structure, easy to check and maintain, low road requirement for segment transportation, wide application, and the segment construction method also embodies its environmental protection, economy and many other advantages. Therefore, the prefabricated segmental T beam is an embodiment of industrialized construction, and it has obvious advantages in both urban viaduct construction with limited construction site and heavy traffic pressure and bridge construction with complex concrete transportation conditions and short effective construction time. The segment T beam uses steel tenon keys as connecting pieces between segments, and the installation precision requirement is high, so general hoisting equipment cannot realize rapid and accurate butt joint. Therefore, it is necessary to improve the problems existing in the prior art to solve the technical problems existing in the prior art, so as to reduce the cost and improve the construction efficiency. SUMMARY

[0003] In view of the problems in the prior art, the present application provides a segment T beam rapid splicing positioning trolley.

[0004] The technical scheme adopted by the present application to solve the technical problems is: a segment T beam rapid splicing positioning trolley, comprising a frame, a base plate, a lifting plate, a lifting hydraulic cylinder, a U-shaped frame, a positioning mechanism, an adjusting mechanism, a moving wheel and a guide rail, the moving wheels are installed at the corners of the lower end of the frame, the guide rails are arranged on the ground, and the moving wheels run on the guide rails, the base plates are symmetrically installed at the upper end of the frame, the lifting plates are installed at the upper end of the base plates in a sliding fit manner, the lifting hydraulic cylinders are symmetrically installed at the front and rear ends of the base plates, the output shafts of the lifting hydraulic cylinders are in transmission connection with the lifting plates, the U-shaped frames with openings upward are symmetrically installed at the front and rear ends of the lifting plates, the positioning mechanisms are jointly installed at the middle part of the lifting plates and the upper end of the U-shaped frames, and the adjusting mechanisms are installed at the lower end of the U-shaped frames.

[0005] The positioning mechanism comprises a displacement sliding rod, a displacement sliding frame, a displacement hydraulic cylinder, a U-shaped groove, anti-skid teeth, a positioning rotating shaft, a tapered tooth, a brake convex ring and a handle, the upper end of the U-shaped frame is provided with the displacement sliding rod through bearing installation, the displacement sliding rod is located above the lifting plate, the displacement sliding frame is jointly installed between the displacement sliding rods located on the front and back sides of the lifting plate in a sliding fit manner, the middle part of the lifting plate is fixedly provided with the displacement hydraulic cylinder, the output shaft of the displacement hydraulic cylinder is in transmission connection with the displacement sliding frame, the upper end of the displacement sliding frame is provided with the U-shaped groove with the opening facing upward, the anti-skid teeth are uniformly installed on the inner side of the groove opening of the U-shaped groove along the line, the front and back ends of the lifting plate are both provided with the positioning rotating shaft through bearing installation, the upper end of the positioning rotating shaft is provided with the handle through key connection, the lower end of the positioning rotating shaft is uniformly provided with the tapered tooth, the front and back ends of the base plate are both provided with the brake convex ring, and the brake convex rings are located on the left and right sides of the positioning rotating shaft respectively and abut against the tapered tooth.

[0006] Specifically, the brake convex ring is obliquely installed in the middle part through a sliding fit manner, a compression spring is arranged between the bottom end of the brake plate and the brake convex ring, the tapered teeth are vertically and equidistantly arranged on the left and right side walls of the positioning rotating shaft, and the upper end of the brake plate abuts against the lower end of the tooth surface of the tapered tooth through a sliding fit manner. By abutting against each other of the brake plate and the tapered tooth, the auxiliary support for adjusting the distance between the base plate and the lifting plate can be completed.

[0007] Specifically, the U-shaped groove is provided with the limiting rotating shaft through a rotating fit manner on both sides of the groove opening, the limiting rotating plate is installed on the front and back ends of the limiting rotating shaft through a key connection manner, a torsion spring is arranged between the side wall of the limiting rotating plate and the U-shaped groove, the lower end of the limiting rotating plate is fixedly provided with the meshing block, the inner side of the groove opening of the U-shaped groove is provided with the butt joint block through a sliding fit manner, the lower end of the butt joint block is connected with the inner wall of the groove opening of the U-shaped groove through a butt joint spring, the upper end of the butt joint block and the lower end of the meshing block are both provided with the arc surfaces matched with each other, the lower end of the butt joint block is fixedly provided with the hand pushing rod, and the hand pushing rod is located outside the U-shaped groove and is supported by the bottom side wall of the U-shaped groove and the limiting rotating plate segment T beam.

[0008] Specifically, the limiting rotating plate is in a horizontal placement state under the action of the torsion force of the torsion spring in the initial position.

[0009] Specifically, the limiting rotating plate is provided with the ball through a rotating fit manner on one side wall, and the exposed end position of the ball is higher than the inner wall of the groove opening of the U-shaped groove.

[0010] Specific, the lifting plate upper end front and back symmetry is installed with the load bearing plate, the load bearing plate is installed with a plurality of groups of load bearing rotating shafts through the bearing, each group of load bearing rotating shafts is installed with load bearing rollers through the bearing, and the load bearing rollers are all abutted on the lower end surface of the displacement carriage, the load bearing rotating shafts and the load bearing rollers arranged in multiple stations can evenly disperse the gravity of the segment T beam borne by the displacement carriage, simultaneously reduce the friction force borne by the displacement carriage in the horizontal displacement process, reduce the probability of the segment T beam tilting and overturning, and improve the safety degree and the butt joint accuracy of the butt joint operation.

[0011] Specific, the contact surface of the base plate and the lifting plate is provided with intermeshing concave and convex grooves.

[0012] Specific, the base plate and the lifting plate are symmetrically installed with fixed shafts through bearings, and the fixed shafts on the base plate and the fixed shafts on the lifting plate are jointly installed with a hinged frame through bearings, and the hinged frame and the concave and convex grooves can improve the synchronization degree of each area of the segment T beam in the moving process in the same horizontal plane, and further improve the stability degree of the segment T beam in the lifting and moving process.

[0013] Specific, the maximum lifting distance of the lifting plate is within the maximum extension distance of the hinged frame.

[0014] Specific, the adjusting mechanism comprises an adjusting rotating shaft, an adjusting push plate, an adjusting hydraulic cylinder, a hydraulic rod, an adjusting push rod and a supporting rod, the adjusting rotating shaft is symmetrically installed between the symmetrically installed U-shaped frames through bearings, the hydraulic rods are installed on the front and rear ends of the adjusting rotating shaft in a key connection mode, the adjusting push rod is jointly installed between the upper ends of the hydraulic rods on the front and rear sides of the lifting plate, the supporting rods are uniformly inserted into the adjusting push rod, the adjusting push plate is installed on the middle part of the adjusting rotating shaft in a key connection mode, the adjusting hydraulic cylinder is fixedly installed at the lower end of the U-shaped frame, and the output shaft of the adjusting hydraulic cylinder is in transmission connection with the adjusting push plate, by controlling the different extension lengths of the hydraulic rods on the left and right sides of the segment T beam, the thrust value applied to the side wall of the segment T beam by the supporting rods can be controlled, and the adjustment of the perpendicularity of the left and right sides of the segment T beam is further realized.

[0015] The beneficial effects of the present application are as follows:

[0016] 1. The segment T beam rapid splicing positioning trolley disclosed by the present application supports the bottom side wall of the segment T beam through the U-shaped groove and the limiting rotating plate, the load bearing rotating shafts and the load bearing rollers arranged in multiple stations can evenly disperse the gravity of the segment T beam borne by the displacement carriage, simultaneously reduce the friction force borne by the displacement carriage in the horizontal displacement process, reduce the probability of the segment T beam tilting and overturning, and improve the safety degree and the butt joint accuracy of the butt joint operation.

[0017] 2. The segmental T-beam rapid splicing and positioning trolley of the present invention can improve the synchronization of different areas of the segmental T-beam on the same horizontal plane during movement through the synergistic effect of the concave and convex grooves and the hinge frame, and further improve the stability of the segmental T-beam during lifting and moving. By the mutual abutment of the brake plate and the conical teeth, auxiliary support can be provided for adjusting the distance between the base plate and the lifting plate. By controlling the different extension lengths of the hydraulic rods on the left and right sides of the segmental T-beam, the thrust value applied by the support rod to the side wall of the segmental T-beam can be controlled, and the verticality of the left and right sides of the segmental T-beam can be adjusted.

[0018] 3. The segmental T-beam rapid splicing and positioning trolley described in this invention can achieve precise adjustment of segmental T-beams in six directions: front-back, up-down, left-right, and right-right. At the same time, verticality can be adjusted through diagonal braces on both sides. This solves the problem that general lifting and hoisting equipment cannot achieve rapid and accurate docking of segmental T-beams. Multiple T-beams can be spliced ​​simply and quickly on the ground, saving a lot of time and labor costs, and enabling T-beam splicing to achieve factory-based and mechanized construction. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of a segmental T-beam rapid splicing and positioning trolley provided by the present invention;

[0021] Figure 2 This is a schematic diagram illustrating the working state of the positioning trolley of the present invention;

[0022] Figure 3 For the present invention Figure 2 Front view diagram;

[0023] Figure 4 For the present invention Figure 3 A schematic cross-sectional view along the AA direction;

[0024] Figure 5 For the present invention Figure 4 Enlarged view of point B;

[0025] Figure 6 For the present invention Figure 4 Enlarged view of point C;

[0026] Figure 7 This is a three-dimensional structural diagram of the positioning trolley of the present invention;

[0027] Figure 8 This is a first partial three-dimensional structural schematic diagram of the positioning mechanism and adjustment mechanism of the present invention;

[0028] Figure 9 This is a partial three-dimensional structural diagram of the limiting rotating plate of the present invention;

[0029] Figure 10 Second partial perspective view of the positioning mechanism and the adjusting mechanism of the present application;

[0030] Figure 11 Partial perspective view of the base plate and the lifting plate of the present application;

[0031] In the figure: 1, frame; 2, base plate; 3, lifting plate; 4, lifting hydraulic cylinder; 5, U-shaped frame; 6, positioning mechanism; 7, adjusting mechanism; 8, moving wheel; 9, guide rail; 01, ground; 02, segment T-beam; 61, displacement slide rod; 62, displacement slide frame; 63, displacement hydraulic cylinder; 64, U-shaped groove; 65, anti-skid tooth; 66, positioning rotating shaft; 67, conical tooth; 68, brake convex ring; 69, handle; 681, brake plate; 641, limiting rotating shaft; 642, limiting rotating plate; 643, torsion spring; 6421, engaging block; 644, butt joint block; 645, butt joint spring; 6441, hand pushing rod; 6422, ball; 31, bearing plate; 311, bearing rotating shaft; 3111, bearing roller; 21, concave-convex notch; 22, fixed shaft; 23, hinged frame; 71, adjusting rotating shaft; 72, section pushing plate; 73, adjusting hydraulic cylinder; 74, hydraulic rod; 75, adjusting pushing rod; 76, supporting rod. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the present application is further described below in combination with specific embodiments.

[0033] Reference is made to Figure 1 , Figure 2 , Figure 4 and Figure 11A segmental T-beam rapid splicing and positioning trolley includes a frame 1, a base plate 2, a lifting plate 3, a lifting hydraulic cylinder 4, a U-shaped frame 5, a positioning mechanism 6, an adjusting mechanism 7, moving wheels 8, and guide rails 9. Moving wheels 8 are installed at all four corners of the lower end of the frame 1. Guide rails 9 are provided on the ground 01, and the moving wheels 8 travel on the guide rails 9. Base plates 2 are symmetrically installed at the front and rear of the upper end of the frame 1. Lifting plates 3 are installed on the upper end of the base plates 2 via a sliding fit. Interlocking grooves 21 are provided on the contact surfaces of the base plates 2 and the lifting plates 3. Fixed shafts 22 are symmetrically mounted on the base plate 2 via bearings. A hinge frame 23 is mounted between the fixed shafts 22 on the base plate 2 and the fixed shafts 22 on the lifting plate 3 via bearings. Lifting hydraulic cylinders 4 are symmetrically mounted at the front and rear ends of the base plate 2. The output shaft of the lifting hydraulic cylinder 4 is connected to the lifting plate 3 via transmission. The maximum lifting distance of the lifting plate 3 is within the maximum extension distance of the hinge frame 23. U-shaped frames 5 with upward openings are symmetrically mounted at the front and rear ends of the lifting plate 3. A positioning mechanism 6 is mounted at the upper end of the U-shaped frame 5 and the middle part of the lifting plate 3. An adjustment mechanism 7 is mounted at the lower end of the U-shaped frame 5.

[0034] See Figures 3 to 8 The positioning mechanism 6 includes a shifting slide rod 61, a shifting carriage 62, a shifting hydraulic cylinder 63, a C-shaped groove 64, anti-slip teeth 65, a positioning rotating shaft 66, a conical tooth 67, a brake convex ring 68, and a handle 69. The upper end of the U-shaped frame 5 is mounted with a shifting slide rod 61 via bearings. The shifting slide rod 61 is located above the lifting plate 3. The shifting slide rods 61 located on the front and rear sides of the lifting plate 3 are connected by a sliding fit to mount the shifting carriage 62. The upper end of the lifting plate 3 is symmetrically equipped with load-bearing plates 31. Multiple sets of load-bearing rotating shafts 311 are mounted between the load-bearing plates 31 via bearings. Each set of load-bearing rotating shafts 311 is equipped with a load-bearing roller 3111 via bearings, and the load-bearing rollers 3111 abut against the lower end face of the shifting carriage 62. A shifting hydraulic cylinder 63 is fixedly mounted in the middle of the lifting plate 3. The output shaft of the shifting hydraulic cylinder 63 is connected to the shifting carriage. The transmission connection is 62. The upper end of the shifting slide 62 is provided with an upward-opening U-shaped groove. Anti-slip teeth 65 are evenly installed along the inner side of the groove. The front and rear ends of the lifting plate 3 are both equipped with positioning shafts 66 through bearings. The upper end of the positioning shaft 66 is equipped with a handle 69 by key connection. The lower end of the positioning shaft 66 is evenly provided with conical teeth 67. The front and rear ends of the base plate 2 are both provided with brake protrusions 68. The brake protrusions 68 are located on the left and right sides of the positioning shaft 66 respectively. The brake plate 68 is inclinedly installed in the middle of the brake protrusion 68 by sliding fit. A compression spring is provided between the bottom end of the brake plate 681 and the brake protrusion 68. The conical teeth 67 are vertically and equidistantly arranged on the left and right side walls of the positioning shaft 66, and the upper end of the brake plate 681 abuts against the lower end of the tooth surface of the conical teeth 67 by sliding fit.

[0035] In practice, the positioning trolley is first positioned above the guide rail 9 by the limiting action between the moving wheels 8 and the guide rail 9. Then, the frame 1 is manually moved, and the spacing between adjacent positioning trolleys is adjusted according to the actual length of the required segment T-beam 02. Next, the segment T-beam 02 is hoisted and transported using existing hoisting equipment, moving it above the positioning trolley. Then, both ends of the segment T-beam 02 are respectively placed onto symmetrically placed shifting slides 62. During the placement of the segment T-beam 02, its lower end further enters the inner side of the groove 64, and is guided and limited by the sidewall of the groove 64. The bottom end of T-beam 02 is initially positioned. After the segment T-beam 02 is placed, it is manually pushed to move along the guide rail 9, so that two adjacent segment T-beams 02 move towards each other, thereby adjusting the docking distance between the segment T-beams 02. The anti-slip teeth 65 can further enhance the contact friction between the segment T-beam 02 and the C-shaped groove 64, so that the positioning trolley moves along the segment T-beam 02 under the action of static friction. During the movement, the limiting action between the moving wheel 8 and the guide rail 9 can keep the movement path of the segment T-beam 02 in a straight line, which facilitates the rapid splicing operation between segment T-beams 02.

[0036] After both adjacent T-beam segments 02 have moved to their predetermined positions, the lifting hydraulic cylinder 4 is activated according to the interface position of the T-beam segments 02. The lifting hydraulic cylinder 4 pushes the lifting plate 3 to move, and the lifting plate 3 supports the T-beam segments 02 to move synchronously. This adjusts the docking height between the T-beam segments 02. During the upward movement of the lifting plate 3, the hinge frame 23 extends synchronously. Through the multi-directional contact and cooperation between the base plate 2 and the groove 21 on the lifting plate 3, the lifting plate 3 can avoid tilting and flipping in the left and right directions during the lifting process. Through the joint limiting transmission of the base plate 2 and the lifting plate 3 by the hinge frame 23, the lifting plate 3 can avoid tilting and flipping in the front and back directions during the lifting process. The synergistic effect of the groove 21 and the hinge frame 23 can improve the synchronization of different areas of the lifting plate 3 on the same horizontal plane during the movement process, further improving the stability of the T-beam segments 02 during the lifting and lowering process, and improving the efficiency and accuracy of the docking operation.

[0037] During the upward movement of the lifting plate 3, the positioning shaft 66 moves upward synchronously, which in turn drives the conical teeth 67 to move synchronously. As the conical teeth 67 rises, their inclined sidewalls simultaneously abut against the upper end of the brake plate 681. During further movement, the abutting action causes the brake plate 681 to retract into the brake ring 68, simultaneously compressing the compression spring. When the maximum distance between the bottom ends of the conical teeth 67 reaches the position above the brake plate 681, the spring force of the compression spring pushes them back to their original position. As the brake plate 681 extends outward again and abuts against the side wall of the positioning shaft 66, this process is repeated until the height of the lifting plate 3 is adjusted. Then, the positioning shaft 66 and the conical tooth 67 stop moving. At this time, the upper end of the brake plate 681 abuts against the lower end surface of the conical tooth 67. Since the lower bottom surface of the conical tooth 67 cannot completely retract the brake plate 681, the brake plate 681 and the conical tooth 67 abut against each other and complete the auxiliary support for adjusting the distance between the base plate 2 and the lifting plate 3, thereby improving the levelness of the segment T beam 02 after the height adjustment is completed.

[0038] After the height position of segment T-beam 02 is adjusted, the displacement hydraulic cylinder 63 is activated. The output shaft of the displacement hydraulic cylinder 63 drives the displacement slide 62 to slide on the displacement slide rod 61. The load-bearing rotating shaft 311 and load-bearing roller 3111 set in multiple positions can evenly distribute the weight of segment T-beam 02 borne by the displacement slide 62, and at the same time reduce the friction force experienced by the displacement slide 62 during horizontal displacement. Due to the heavy weight of segment T-beam and the small bottom support area, the generation of mechanical vibration can be reduced by reducing the external resistance during the position adjustment process, further reducing the probability of segment T-beam 02 tilting and overturning, and improving the safety and accuracy of docking operations.

[0039] See Figure 8 , Figure 9 and Figure 10The indentation 64 has a limiting shaft 641 mounted on both sides of the groove opening via a rotatable engagement. Limiting plates 642 are mounted on both ends of the limiting shaft 641 via key connections. A torsion spring 643 is provided between the sidewall of the limiting plate 642 and the indentation 64. A meshing block 6421 is fixedly mounted on the lower end of the limiting plate 642. A docking block 644 is mounted on the inner side of the indentation 64 via a sliding engagement. The lower end of the docking block 644 is connected to the inner wall of the indentation 64 via a docking spring 645. The upper end of the mating block 644 and the lower end of the meshing block 6421 are both provided with mutually cooperating arc-shaped surfaces. A push rod 6441 is fixedly installed at the lower end of the mating block 644, and the push rod 6441 is located outside the C-shaped groove 64. The limiting rotating plate 642 is in a horizontal position under the torsion of the torsion spring 643 in the initial position. Rollers 6422 are evenly installed on one side wall of the limiting rotating plate 642 by rotational engagement, and the exposed end of the rollers 6422 is higher than the inner wall of the groove of the C-shaped groove 64.

[0040] In specific operation, during the initial placement of the segmental T-beam 02, when it falls to the predetermined height surface inside the U-shaped groove 64, its lower bottom surface forms abutment contact with the side wall of the limiting rotating plate 642. During subsequent movement, the limiting rotating plate 642 adaptively rotates, switching from a horizontal to a vertical position. During this rotation, the ball bearings 6422 on its side wall gradually contact and abut with the side wall of the segmental T-beam 02. When the limiting rotating plate 642 rotates to a suitable angle, the arc-shaped surface on its lower end engaging block 6421 contacts the arc-shaped surface inside the upper end of the mating block 644. Further... During the flipping process, the squeezing action pushes the docking block 644 downward to retract and move, and the docking spring 645 gradually enters a compressed state. When the limiting plate 642 switches to a vertical position, the meshing block 6421 and the docking block 644 are misaligned. Then, under the elastic force of the docking spring 645, the docking block 644 moves upward to reset. The docking block 644 abuts against the inner wall of the meshing block 6421, further ensuring that the limiting plate 642 is always in a vertical position and abuts against and supports the bottom side wall of the segment T beam 02, reducing the probability of tilting and flipping during the subsequent docking position adjustment of the segment T beam 02.

[0041] See Figure 3 , Figure 7 , Figure 8 and Figure 10The adjustment mechanism 7 includes an adjustment shaft 71, an adjustment push plate 72, an adjustment hydraulic cylinder 73, a hydraulic rod 74, an adjustment push rod 75, and a support rod 76. The adjustment shaft 71 is symmetrically installed between the U-shaped frames 5 via bearings. The front and rear ends of the adjustment shaft 71 are connected by keys to the hydraulic rods 74. The upper ends of the hydraulic rods 74 on the front and rear sides of the lifting plate 3 are connected by adjustment push rods 75. Support rods 76 are evenly inserted into the adjustment push rods 75. The adjustment push plate 72 is installed in the middle of the adjustment shaft 71 via a key connection. The lower end of the U-shaped frame 5 is fixedly installed with the adjustment hydraulic cylinder 73, and the output shaft of the adjustment hydraulic cylinder 73 is connected to the adjustment push plate 72 for transmission.

[0042] In practice, after the initial placement of segment T-beam 02, the hydraulic rod 74 is activated. The transmission connection between the output shaft of hydraulic cylinder 73 and the adjusting push plate 72 is adjusted to rotate the adjusting shaft 71. The adjusting shaft 71 then drives the hydraulic rod 74 to rotate towards segment T-beam 02. After the hydraulic rod 74 rotates a certain angle, its upper adjusting push rod 75 gradually abuts against the upper side wall of segment T-beam 02. Then, the hydraulic rod 74 itself is activated, extending its overall length. During this extension, the support rod 76 abuts against the bent portion at the upper end of segment T-beam 02. With the bottom height of segment T-beam 02 remaining constant, by controlling the different extension lengths of the hydraulic rods 74 on the left and right sides of segment T-beam 02, the application of the support rod 76 to segment T-beam 02 can be controlled. The magnitude of the thrust value on the side wall of beam 02 further adjusts the inclination of the left and right sides of segment T beam 02. After the vertical, front and back, left and right and verticality of segment T beam 02 are adjusted, the next docking operation is carried out by the staff. After the docking is completed, the working state of hydraulic rod 74 and adjusting hydraulic cylinder 73 is gradually released. Then, by manually turning handle 69, the locking state between conical tooth 67 and brake plate 681 is further released by the rotation of positioning shaft 66. Subsequently, segment T beam 02 after docking is lifted to the outside of positioning trolley by existing hoisting and transportation machinery. After segment T beam 02 is lifted and released, push rod 6441 is pulled down to release the docking state between meshing block 6421 and docking block 644, so that positioning trolley returns to the initial working state.

[0043] During work:

[0044] Step 1: First, the positioning trolley of the present invention is positioned above the guide rail 9 by the limiting cooperation between the moving wheel 8 and the guide rail 9. Then, the frame 1 is moved manually, and the interval between two adjacent positioning trolleys is adjusted according to the actual length of the required segment T beam 02. Then, the segment T beam 02 is hoisted and transported by existing hoisting equipment to the top of the positioning trolley. Then, the two ends of the segment T beam 02 are respectively attached to the symmetrically placed shifting slide 62. During the placement of the segment T beam 02, its lower end further enters the inner side of the groove of the C-shaped groove 64, and the bottom end of the segment T beam 02 is initially positioned under the guiding and limiting action of the side wall of the C-shaped groove 64.

[0045] Step 2: During the initial placement of the segmental T-beam 02, when it falls to the predetermined height surface inside the U-shaped groove 64, its lower bottom surface forms abutment contact with the side wall of the limiting rotating plate 642. During subsequent movement, the limiting rotating plate 642 adaptively rotates, switching from a horizontal to a vertical position. During this rotation, the ball bearings 6422 on its side wall gradually contact the side wall of the segmental T-beam 02. When the limiting rotating plate 642 rotates to a suitable angle, the arc-shaped surface on its lower engagement block 6421 contacts the arc-shaped surface inside the upper end of the mating block 644. Further rotation of the limiting rotating plate 642... During the rotation, the squeezing action pushes the docking block 644 downward to retract and move, and the docking spring 645 gradually enters a compressed state. When the limiting rotating plate 642 switches to a vertical position, the meshing block 6421 and the docking block 644 are misaligned. Then, under the elastic force of the docking spring 645, the docking block 644 moves upward to reset. The docking block 644 abuts against the inner wall of the meshing block 6421, further ensuring that the limiting rotating plate 642 is always in a vertical position and abuts against and supports the bottom side wall of the segment T beam 02, reducing the probability of tilting and overturning during the subsequent docking position adjustment of the segment T beam 02.

[0046] Step 3: After the segment T-beam 02 is placed, it is manually pushed along the guide rail 9 to move the two adjacent segment T-beams 02 towards each other, thereby adjusting the docking distance between the segment T-beams 02. The anti-slip teeth 65 can further increase the contact friction between the segment T-beam 02 and the C-shaped groove 64, so that the positioning trolley moves along the segment T-beam 02 under the action of static friction. During the movement, the limiting effect between the moving wheel 8 and the guide rail 9 can keep the movement path of the segment T-beam 02 in a straight line, which facilitates the rapid splicing operation between the segment T-beams 02.

[0047] Step 4: After both adjacent T-beam segments 02 have moved to their predetermined positions, the lifting hydraulic cylinder 4 is activated according to the interface position of the T-beam segments 02. The lifting hydraulic cylinder 4 pushes the lifting plate 3 to move, and the supporting action of the lifting plate 3 drives the T-beam segments 02 to move synchronously. This adjusts the docking height between the T-beam segments 02. During the upward movement of the lifting plate 3, the hinge frame 23 extends synchronously. Through the multi-directional contact and cooperation between the base plate 2 and the groove 21 on the lifting plate 3, the lifting plate 3 can be prevented from tilting and flipping in the left and right directions during the lifting process. Through the joint limiting transmission of the base plate 2 and the lifting plate 3 by the hinge frame 23, the lifting plate 3 can be prevented from tilting and flipping in the front and back directions during the lifting process. The synergistic effect of the groove 21 and the hinge frame 23 can improve the synchronization of different areas of the lifting plate 3 on the same horizontal plane during the movement process, further improving the stability of the T-beam segments 02 during the lifting and lowering process, and improving the efficiency and accuracy of the docking operation.

[0048] Step 5: During the upward movement of the lifting plate 3, the positioning shaft 66 moves upward synchronously, which in turn drives the conical teeth 67 to move synchronously. As the conical teeth 67 rises, their inclined sidewalls simultaneously abut against the upper end of the brake plate 681. During further movement, the abutting action causes the brake plate 681 to retract into the brake ring 68, simultaneously compressing the spring. When the maximum distance between the bottom ends of the conical teeth 67 reaches the position above the brake plate 681, the spring force compresses the spring. As the position is pushed, the brake plate 681 extends outward again and abuts against the side wall of the positioning shaft 66. This process is repeated until the height position of the lifting plate 3 is adjusted. Then, the positioning shaft 66 and the conical tooth 67 stop moving. At this time, the upper end of the brake plate 681 abuts against the lower end surface of the conical tooth 67. Since the lower bottom surface of the conical tooth 67 cannot fully retract the brake plate 681, the brake plate 681 and the conical tooth 67 abut against each other and complete the auxiliary support for adjusting the distance between the base plate 2 and the lifting plate 3, thereby improving the levelness of the segment T beam 02 after the height adjustment is completed.

[0049] Step 6: After the height position of segment T-beam 02 is adjusted, the displacement hydraulic cylinder 63 is started. The output shaft of the displacement hydraulic cylinder 63 drives the displacement slide 62 to slide on the displacement slide rod 61. The load-bearing rotating shaft 311 and load-bearing roller 3111 set in multiple positions can evenly distribute the weight of segment T-beam 02 borne by the displacement slide 62, and at the same time reduce the friction force experienced by the displacement slide 62 during horizontal displacement.

[0050] Step 7: After the initial placement of segment T-beam 02, start the hydraulic rod 74. Adjust the transmission connection between the output shaft of hydraulic cylinder 73 and the adjusting push plate 72 to rotate the adjusting shaft 71. The adjusting shaft 71 then drives the hydraulic rod 74 to rotate towards segment T-beam 02. After the hydraulic rod 74 rotates a certain angle, its upper adjusting push rod 75 gradually abuts against the upper side wall of segment T-beam 02. Then, start the hydraulic rod 74 itself to work, extending the overall length of the hydraulic rod 74. The length of the support rod 76 is extended, and during the extension process, the support rod 76 abuts against the bent part at the upper end of the segment T beam 02. Under the condition that the bottom height of the segment T beam 02 remains unchanged, by controlling the different extension lengths of the hydraulic rods 74 on the left and right sides of the segment T beam 02, the thrust value applied by the support rod 76 to the side wall of the segment T beam 02 can be controlled, thereby further adjusting the inclination of the left and right sides of the segment T beam 02. After the vertical, front and back, left and right and verticality of the segment T beam 02 are all adjusted, the workers will carry out the next docking operation.

[0051] Step 8: After the docking is completed, gradually release the working state of the hydraulic rod 74 and the adjusting hydraulic cylinder 73. Then, by manually turning the handle 69, the locking state between the bevel gear 67 and the brake plate 681 is further released by the rotation of the positioning shaft 66. Subsequently, the docked segment T beam 02 is hoisted to the outside of the positioning trolley by the existing hoisting and transportation machinery. After the segment T beam 02 is hoisted and released, the push rod 6441 is pulled down to release the docking state between the meshing block 6421 and the docking block 644, so that the positioning trolley returns to the initial working state.

[0052] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A segmental T-beam rapid splicing positioning trolley, comprising a frame (1), a base plate (2), a lifting plate (3), a lifting hydraulic cylinder (4), a U-shaped frame (5), a positioning mechanism (6), an adjusting mechanism (7), a moving wheel (8) and a guide rail (9), characterized in that: The lower end of the frame (1) is provided with moving wheels (8), the ground (01) is provided with guide rails (9), and the moving wheels (8) run on the guide rails (9), the upper end of the frame (1) is symmetrically provided with a base plate (2), the upper end of the base plate (2) is provided with a lifting plate (3) through sliding fit, the front and rear ends of the base plate (2) are symmetrically provided with lifting hydraulic cylinders (4), the output shaft of the lifting hydraulic cylinder (4) is in transmission connection with the lifting plate (3), the front and rear ends of the lifting plate (3) are symmetrically provided with U-shaped frames (5) with openings upward, the upper end of the U-shaped frame (5) is symmetrically provided with a positioning mechanism (6) with the middle part of the lifting plate (3), and the lower end of the U-shaped frame (5) is provided with an adjusting mechanism (7). The positioning mechanism (6) comprises a displacement sliding rod (61), a displacement sliding frame (62), a displacement hydraulic cylinder (63), a U-shaped groove (64), an anti-skid tooth (65), a positioning rotating shaft (66), a tapered tooth (67), a brake convex ring (68) and a handle (69), the upper end of the U-shaped frame (5) is provided with the displacement sliding rod (61) through a bearing, the displacement sliding rod (61) is located above the lifting plate (3), the displacement sliding rod (61) is symmetrically provided with the displacement sliding frame (62) through sliding fit between the front and rear sides of the lifting plate (3), the middle part of the lifting plate (3) is fixedly provided with the displacement hydraulic cylinder (63), the output shaft of the displacement hydraulic cylinder (63) is in transmission connection with the displacement sliding frame (62), the upper end of the displacement sliding frame (62) is provided with a U-shaped groove with an opening upward, the inner side of the groove of the U-shaped groove is uniformly provided with the anti-skid tooth (65) along a line, the front and rear ends of the lifting plate (3) are both provided with the positioning rotating shaft (66) through a bearing, the upper end of the positioning rotating shaft (66) is provided with the handle (69) through key connection, the lower end of the positioning rotating shaft (66) is uniformly provided with the tapered tooth (67), the front and rear ends of the base plate (2) are both provided with the brake convex ring (68), the brake convex ring (68) is located on the left and right sides of the positioning rotating shaft (66) respectively and abuts against the tapered tooth (67); the middle part of the brake convex ring (68) is obliquely provided with a brake plate (681) through sliding fit, a compression spring is arranged between the bottom end of the brake plate (681) and the brake convex ring (68), the tapered teeth (67) are vertically and equidistantly arranged on the left and right side walls of the positioning rotating shaft (66), and the upper end of the brake plate (681) abuts against the tooth surface lower end of the tapered tooth (67) through sliding fit.

2. The quick splicing positioning trolley for segmental T-beam according to claim 1, characterized in that: The both sides of the groove of the Z-shaped groove (64) are installed with limiting rotating shafts (641) through rotating fit, the front and rear ends of the limiting rotating shafts (641) are installed with limiting rotating plates (642) through key connection, the sidewall of the limiting rotating plate (642) is provided with a torsional spring (643) between the Z-shaped groove (64), the lower end of the limiting rotating plate (642) is fixedly installed with an engaging block (6421), the inner side of the groove of the Z-shaped groove (64) is installed with a butt joint block (644) through sliding fit, the lower end of the butt joint block (644) is connected with the inner wall of the groove of the Z-shaped groove (64) through a butt spring (645), the upper end of the butt joint block (644) and the lower end of the engaging block (6421) are provided with arc surfaces matched with each other, the lower end of the butt joint block (644) is fixedly installed with a hand pushing rod (6441), and the hand pushing rod (6441) is located outside the Z-shaped groove (64).

3. The quick splicing positioning trolley for segmental T-beam according to claim 2, characterized in that: The limiting rotating plate (642) is in a horizontal placement state under the action of the torsional force of the torsional spring (643) at the initial position.

4. The quick splicing positioning trolley for segmental T-beam according to claim 2, characterized in that: The one side sidewall of the limiting rotating plate (642) is uniformly installed with rolling balls (6422) through rotating fit, and the exposed end position of the rolling balls (6422) is higher than the inner wall of the groove of the Z-shaped groove (64).

5. The quick splicing positioning trolley for segmental T-beam according to claim 1, characterized in that: The upper end of the lifting plate (3) is symmetrically installed with bearing plates (31), a plurality of groups of bearing rotating shafts (311) are installed between the bearing plates (31) through bearings, and bearing rollers (3111) are installed on each group of bearing rotating shafts (311) through bearings and abut against the lower end surface of the displacement sliding frame (62).

6. The quick splicing positioning trolley for segmental T-beam according to claim 1, characterized in that: The contact surfaces of the base plate (2) and the lifting plate (3) are provided with recessed and protruding grooves (21) matched with each other.

7. The quick splicing positioning trolley for segmental T-beam according to claim 1, characterized in that: The base plate (2) and the lifting plate (3) are symmetrically installed with fixed shafts (22) on the upper and lower sides through bearings, and the fixed shafts (22) on the base plate (2) and the fixed shafts (22) on the lifting plate (3) are jointly installed with a hinged frame (23) through bearings.

8. The quick splicing positioning trolley for segmental T-beam according to claim 7, characterized in that: The maximum lifting distance of the lifting plate (3) is within the maximum extension distance of the hinged frame (23).

9. The quick splicing positioning trolley for segmental T-beam according to claim 1, characterized in that: The adjusting mechanism (7) comprises adjusting rotating shafts (71), adjusting push plates (72), adjusting hydraulic cylinders (73), hydraulic rods (74), adjusting push rods (75) and supporting rods (76), the adjusting rotating shafts (71) are symmetrically installed between the symmetrically installed U-shaped frames (5) through bearings, the front and rear ends of the adjusting rotating shafts (71) are installed with the hydraulic rods (74) through key connection, the upper ends of the hydraulic rods (74) located on the front and rear sides of the lifting plate (3) are jointly installed with the adjusting push rods (75), the adjusting push rods (75) are uniformly inserted with the supporting rods (76), the middle part of the adjusting rotating shaft (71) is installed with the adjusting push plate (72) through key connection, the lower end of the U-shaped frame (5) is fixedly installed with the adjusting hydraulic cylinder (73), and the output shaft of the adjusting hydraulic cylinder (73) is in transmission connection with the adjusting push plate (72).

Images