An installation device for prefabricated and assembled inspection pit track columns in rail transit

Abstract

The present invention provides an installation device for precast and assembled inspection pit track columns in rail transit. The walking wheel devices are arranged longitudinally and can be slidably connected to the double-row steel rails of rail transit. The double-T bracket is composed of a top plate and several vertical plates. The top plate is horizontally perpendicular to the walking wheel devices. Motor wing plates are slidably connected to both ends of the top plate. A speed-regulating motor is installed on the motor wing plates. A central sleeve collinear with the two speed-regulating motors is provided in the middle of the top plate. A spiral thread is provided on the inner wall of the central sleeve. Rotating shafts are screwed into both ends of the central sleeve. The other ends of the two rotating shafts are respectively connected to the corresponding speed-regulating motors. A lifting suspension rope is fixed on the rotating shafts. The bottom end of the lifting suspension rope is connected to an L-shaped fixing frame. Hoop arms and hoop ropes for fixing precast concrete columns are provided on the vertical side of the L-shaped fixing frame. The present invention effectively improves the installation accuracy and construction efficiency of precast concrete columns, and solves the problems of high requirement for manual cooperation, inability to standardize operations, and great potential safety hazards in the traditional method.

Description

Technical Field

[0001] The present invention relates to the technical field of rail transit, and particularly to an installation device for track columns of a prefabricated and assembled inspection pit in rail transit. Background Art

[0002] In the traditional construction of laying tracks for prefabricated column-type inspection pits in urban rail transit, it is necessary to longitudinally and symmetrically install track pads below the position of a fixed double-row steel rail. A position for supporting columns is reserved below the pads. Then, a small crane drives to the side of the track and, in cooperation with workers, lifts precast concrete columns one by one, hoists them to a position near the lower part of the steel rail, and then the workers assist in pushing them to the designated position and tightening the fasteners. This installation method has the following disadvantages: 1. It requires the cooperation of a small crane. Since the inspection pit track is generally installed in a steel structure workshop, the crane is affected by the indoor steel structure construction and building space, and in some sections, it cannot be hoisted and installed, and only manual pile lifting is relied on; 2. Since the line spacing between the two inspection pit tracks is small (generally 4.8 m line spacing), it is difficult for the hoisting equipment to walk, be in place, and turn around, the construction is inconvenient, the efficiency is low, and mechanical accidents are likely to occur; 3. The crane needs to be adjusted and positioned multiple times. Each time the moving range is different, and the hoisting space route is different. Multiple displacements not only result in low hoisting efficiency, but also cannot be standardized for hoisting, and require a high technical level of the driver; 4. Due to the influence of the crane hoisting rope, it cannot be accurately moved to the designated position, and workers need to assist in pushing it into place; 5. When installing symmetrically on both sides, workers need to frequently cross the complex site below the steel rail, which is prone to safety hazards and the construction difficulty is great; when installing on one side, it is easy to cause eccentric force on the track support system, affecting the track balance and alignment. Summary of the Invention

[0003] Aiming at the problems existing in the above-mentioned prior art, the present invention aims to provide an installation device for track columns of a prefabricated and assembled inspection pit in rail transit to solve the problems of high requirements for installation with the cooperation of a traditional crane, many uncertain factors, inability to standardize operations, inconvenient construction, low installation efficiency, and great safety hazards.

[0004] To achieve the above object, the present invention provides an installation device for precast assembled inspection pit track columns in rail transit, including a walking wheel device and a double-T bracket fixed above the walking wheel device. The walking wheel devices are arranged longitudinally and can be slidably connected to the double-row steel rails of rail transit. The double-T bracket is composed of a top plate and several vertical plates. The top plate is horizontally perpendicular to the walking wheel device. U-shaped grooves facing outward are provided at both ends of the top plate. Motor wing plates are horizontally slidably connected in the U-shaped grooves. A speed regulating motor is installed on the motor wing plates. A central sleeve collinear with the two speed regulating motors is provided in the middle of the top plate. The central sleeves are arranged horizontally, and the inner wall thereof is provided with spiral threads. Rotating shafts are screwed into both ends of the central sleeve. The other ends of the two rotating shafts are respectively connected to the output shafts of the corresponding speed regulating motors. Lifting suspension ropes are fixed on the rotating shafts. The bottom end of the lifting suspension rope is connected with an L-shaped fixing bracket. The bottom edge of the L-shaped fixing bracket is used for placing precast concrete columns. Hooping arms and hooping ropes for fixing precast concrete columns are provided on the vertical side of the L-shaped fixing bracket.

[0005] In the above solution: the hooping arm includes two hooping brackets arranged side by side horizontally. The hooping brackets are in an obtuse L shape. The upper end of the hooping bracket is the connecting end, and the lower end is the hooping end. An upper strut and a lower strut are connected between the connecting ends of the two hooping brackets, and the two are arranged at intervals, one above the other. A hooping lock rod is arranged between the hooping ends of the two hooping brackets. The hooping arm is welded to the top end of the L-shaped fixing bracket through the connecting ends of the two hooping brackets. The hooping ends of the hooping brackets correspond to the bottom edge of the L-shaped fixing bracket up and down. The upper strut and the lower strut are located on the back side of the top of the L-shaped fixing bracket. The hooping arm has a simple structure, is convenient for locking, and is convenient for welding and connecting with the L-shaped fixing bracket.

[0006] In the above solution: the lifting suspension rope is connected with the hooping arm through two connecting suspension ropes with different lengths, so as to realize the connection with the L-shaped fixing bracket. Lifting lugs are provided on both sides of the upper strut and both sides of the lower strut. Each lifting lug is welded on the corresponding hooping bracket. The two ends of the short connecting suspension rope are respectively fixed on the lifting lugs on both sides of the lower strut. The two ends of the long connecting suspension rope are respectively fixed on the lifting lugs on both sides of the upper strut. The middle part of the long connecting suspension rope bypasses the short connecting suspension rope and is connected with the lifting suspension rope. The middle parts of the long connecting suspension rope and the short connecting suspension rope cross, meeting the requirements of statics. By limiting the length of the short connecting suspension rope, the L-shaped fixing bracket can always be kept vertical during the lifting process, avoiding large tilting of the precast concrete column. Coupled with the connection point between the lifting suspension rope and the hooping arm being located on the back side of the top of the L-shaped fixing bracket, it is convenient to directly send the precast concrete column on the L-shaped fixing bracket from the side of the steel rail to the designated position without manual auxiliary pushing.

[0007] In the above solution: a hook is provided at the bottom end of the lifting suspension rope. The middle part of the long connecting suspension rope is hooked on the hook, which is convenient for taking and placing.

[0008] In the above solution: The traveling wheel device includes two traveling wheel sleeves arranged side by side longitudinally. The two traveling wheel sleeves are connected by two connecting plates, one in front and the other behind. Each traveling wheel sleeve is provided with a number of traveling wheels. The traveling wheel device has good stability and is convenient for traveling on the side-by-side steel rails.

[0009] In the above solution: The top plate is fixed to the two traveling wheel sleeves by four vertical plates distributed in a rectangle. Each traveling wheel sleeve is correspondingly connected to two vertical plates, which is beneficial to ensuring the stability of the installation of the top plate.

[0010] In the above solution: A wire rope adjuster is provided between the lifting sling and the L-shaped fixing frame for fine-tuning the length of the lifting sling.

[0011] In the above solution: A circle of grooves is arranged along the circumferential direction of the rotating shaft, and the lifting sling is fixed at the grooves. When the motor operates, the lifting sling is wound in the grooves.

[0012] In the above solution: The center of the top plate, the center of the traveling wheel device, and the center of the connection line of the double-row steel rails are located on the same vertical line, which is beneficial to ensuring the balance of the installation equipment, and thus ensuring the balance when the lifting sling hoists the precast concrete column.

[0013] The beneficial effects of the present invention are as follows: It can travel along the steel rails through the traveling wheel device. The hoop arms and the hoop ropes are used as a restraint system for fixing the precast concrete column. The speed-regulating motor works, and the two rotating shafts rotate into the central sleeve from both ends respectively. The two lifting slings are wound along the outer circle of the rotating shafts respectively, so that the corresponding L-shaped fixing frames move to the designated positions in the horizontal two-dimensional space according to the predetermined lateral displacement and rising amount. The final bolt tightening work is carried out by the operator. Standardized operations can be carried out simultaneously on both sides, greatly improving the installation accuracy and construction efficiency of the precast concrete column, solving the problems of high requirement for manual cooperation, inability to carry out standardized operations, inconvenient movement of the tools, low installation efficiency, and large potential safety hazards in the traditional method. At the same time, it also reduces the construction cost and improves the level of mechanized and standardized construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the front view of the present invention.

[0015] Figure 2 It is the top view of the present invention.

[0016] Figure 3 It is the side view of the present invention.

[0017] Figure 4 It is the connection schematic diagram of the L-shaped fixing frame and the hoop arm in the present invention.

[0018] Figure 5 It is Figure 4 the side view of

[0019] Figure 6 For Figure 4 the front view of Specific embodiments

[0020] As Figure 1 shown in Fig. -6, a prefabricated and assembled inspection pit track column installation device for rail transit mainly consists of a walking wheel device 1 and a double-T bracket 2 fixed above the walking wheel device 1. The walking wheel device 1 is longitudinally arranged and can be slidably connected to the double-row steel rails of rail transit. The double-T bracket 2 is composed of a top plate 21 and several vertical plates 22. The top plate 21 is horizontally perpendicular to the walking wheel device 1.

[0021] U-shaped grooves facing outwards are provided at both ends of the top plate 21. A motor wing plate 3 is horizontally slidably connected in the U-shaped grooves. A speed-regulating motor 4 is installed on the motor wing plate 3. A central sleeve 5 collinear with the two speed-regulating motors 4 is provided in the middle of the top plate 21. The central sleeve 5 is horizontally arranged, and its inner wall is provided with spiral threads. Rotating shafts 6 are screwed into both ends of the central sleeve 5. The other ends of the two rotating shafts 6 are respectively connected to the output shafts of the corresponding speed-regulating motors 4.

[0022] A lifting suspension rope 7 is fixed on the rotating shaft 6. The bottom end of the lifting suspension rope 7 is connected with an L-shaped fixing bracket 8. The bottom edge of the L-shaped fixing bracket 8 is used for placing precast concrete columns. Hoop arms 9 and hoop ropes 10 for fixing precast concrete columns are provided on the vertical side of the L-shaped fixing bracket 8.

[0023] Preferably, the hoop arm 9 includes two hoop brackets 91 arranged side by side horizontally. The hoop brackets 91 are in an obtuse L shape. The upper ends of the hoop brackets 91 are connection ends, and the lower ends are hoop ends. An upper strut 11 and a lower strut 12 are connected between the connection ends of the two hoop brackets 91, and the two are arranged at intervals, one above the other. A hoop locking rod 13 is arranged between the hoop ends of the two hoop brackets 91. The hoop arm 9 is welded to the top end of the L-shaped fixing bracket 8 through the connection ends of the two hoop brackets 91. The hoop ends of the hoop brackets 91 correspond to the bottom edge of the L-shaped fixing bracket 8 up and down. The upper strut 11 and the lower strut 12 are located on the back side of the top of the L-shaped fixing bracket 8. The hoop arm 9 has a simple structure, is convenient to lock, and is convenient to be welded to the L-shaped fixing bracket 8.

[0024] Preferably, the lifting sling 7 is connected to the hoop arm 9 through two connecting slings of different lengths, so as to be connected to the L-shaped fixing frame 8. Hoisting lugs 17 are provided on both sides of the upper support rod 11 and both sides of the lower support rod 12. Each hoisting lug 17 is welded to the corresponding hoop support 91. The two ends of the short connecting sling 14 are respectively fixed to the hoisting lugs on both sides of the lower support rod 12, and the two ends of the long connecting sling 15 are respectively fixed to the hoisting lugs on both sides of the upper support rod 11. The middle part of the long connecting sling 15 bypasses the short connecting sling 14 and then is connected to the lifting sling 7. The middle parts of the long connecting sling 15 and the short connecting sling 14 cross each other, meeting the requirements of statics. By limiting the length of the short connecting sling 14 (the specific length can be verified on-site), the L-shaped fixing frame 8 can always maintain a vertical state during the hoisting process, avoiding large tilts of the precast concrete column. Coupled with the connection point between the lifting sling 7 and the hoop arm 9 being located on the back side of the top of the L-shaped fixing frame 8, it is convenient to directly send the precast concrete column on the L-shaped fixing frame 8 from the side of the rail to the designated position without manual auxiliary pushing.

[0025] Preferably, a hook is provided at the bottom end of the lifting sling 7, and the middle part of the long connecting sling 15 is hooked on the hook, which is convenient for taking and placing.

[0026] Preferably, the traveling wheel device 1 includes two longitudinally arranged side-by-side traveling wheel sleeves 101. The two traveling wheel sleeves 101 are connected by two connecting plates 102, one in front and the other behind. A number of traveling wheels 103 are provided in each traveling wheel sleeve 101. The traveling wheel device 1 is equipped with a traveling drive motor 104. The traveling wheel device 1 has good stability and is convenient for traveling on the side-by-side rails.

[0027] Preferably, the top plate 21 is fixed to the two traveling wheel sleeves 101 through four vertical plates 22 distributed in a rectangle. Each traveling wheel sleeve 101 is correspondingly connected to two vertical plates 22, which is beneficial to ensuring the stability of the installation of the top plate 21.

[0028] Preferably, a wire rope adjuster 16 is provided between the lifting sling 7 and the L-shaped fixing frame 8 for fine-tuning the length of the lifting sling 7.

[0029] Preferably, a groove 61 is provided in a circle along the circumferential direction of the rotating shaft 6, and the lifting sling 7 is fixed at the groove 61. When the motor operates, the lifting sling 7 is wound in the groove 61.

[0030] Preferably, the center of the top plate 21, the center of the traveling wheel device 1, and the center of the connection line of the double-row rails are located on the same vertical line, which is beneficial to ensuring the balance of the installation equipment, and thus ensuring the balance when the lifting sling 7 hoists the precast concrete column.

Claims

1. A track column installation device for prefabricated and assembled inspection pits in rail transit, characterized in that: It includes a walking wheel device (1) and a double-T bracket (2) fixed above the walking wheel device (1). The walking wheel device (1) is longitudinally arranged and can be slidably connected to the double-row steel rails of rail transit. The double-T bracket (2) is composed of a top plate (21) and several vertical plates (22). The top plate (21) is horizontally perpendicular to the walking wheel device (1). U-shaped grooves facing outward are provided at both ends of the top plate (21). A motor wing plate (3) is horizontally slidably connected in the U-shaped grooves. A speed-regulating motor (4) is installed on the motor wing plate (3). A central sleeve (5) collinear with the two speed-regulating motors (4) is provided in the middle of the top plate (21). The central sleeves (5) are horizontally arranged, and their inner walls are provided with spiral threads. Rotating shafts (6) are screwed into both ends of the central sleeve (5). The other ends of the two rotating shafts (6) are respectively connected to the output shafts of the corresponding speed-regulating motors (4). A lifting suspension rope (7) is fixed on the rotating shaft (6). The bottom end of the lifting suspension rope (7) is connected to an L-shaped fixing bracket (8). The bottom edge of the L-shaped fixing bracket (8) is used to place precast concrete columns. Clamping arms (9) and clamping ropes (10) for fixing precast concrete columns are provided on the vertical side of the L-shaped fixing bracket (8); The clamping arm (9) includes two clamping brackets (91) arranged side by side horizontally. The clamping brackets (91) are in an obtuse L shape. The upper end of the clamping bracket (91) is the connecting end, and the lower end is the clamping end. An upper strut (11) and a lower strut (12) are connected between the connecting ends of the two clamping brackets (91), and the two are arranged at intervals, one above the other. A clamping lock rod (13) is arranged between the clamping ends of the two clamping brackets (91). The clamping arm (9) is welded to the top end of the L-shaped fixing bracket (8) through the connecting ends of the two clamping brackets (91). The clamping ends of the clamping brackets (91) correspond to the bottom edge of the L-shaped fixing bracket (8) up and down. The upper strut (11) and the lower strut (12) are located on the back side of the top of the L-shaped fixing bracket (8); The lifting suspension rope (7) is connected to the clamping arm (9) through two connecting suspension ropes of different lengths, so as to be connected to the L-shaped fixing bracket (8). Lifting lugs (17) are provided on both sides of the upper strut (11) and both sides of the lower strut (12). Each lifting lug (17) is welded to the corresponding clamping bracket (91). The two ends of the short connecting suspension rope (14) are respectively fixed to the lifting lugs on both sides of the lower strut (12). The two ends of the long connecting suspension rope (15) are respectively fixed to the lifting lugs on both sides of the upper strut (11). The middle of the long connecting suspension rope (15) bypasses the short connecting suspension rope (14) and is connected to the lifting suspension rope (7).

2. The track column installation device for prefabricated and assembled inspection pits in rail transit according to claim 1, characterized in that: A hook is provided at the bottom end of the lifting suspension rope (7), and the middle of the long connecting suspension rope (15) is hooked on the hook.

3. The track column installation device for prefabricated and assembled inspection pits in rail transit according to claim 1, characterized in that: The walking wheel device (1) includes two walking wheel sleeves (101) arranged side by side longitudinally. The two walking wheel sleeves (101) are connected by two connecting plates (102) arranged one in front and the other behind. Each walking wheel sleeve (101) is provided with a plurality of walking wheels (103).

4. The prefabricated and assembled inspection pit track column installation equipment for rail transit according to claim 1, characterized in that: The top plate (21) is fixed on the two walking wheel sleeves (101) through four vertical plates (22) distributed in a rectangle. Each walking wheel sleeve (101) is correspondingly connected to two vertical plates (22).

5. The prefabricated and assembled inspection pit track column installation equipment for rail transit according to claim 1, characterized in that: A wire rope adjuster (16) is provided between the lifting suspension rope (7) and the L-shaped fixing frame (8).

6. The prefabricated and assembled inspection pit track column installation equipment for rail transit according to claim 1, characterized in that: A circle of grooves (61) is arranged along the circumference of the rotating shaft (6), and the lifting suspension rope (7) is fixed at the grooves (61).

7. The prefabricated and assembled inspection pit track column installation equipment for rail transit according to claim 1, characterized in that: The center of the top plate (21), the center of the walking wheel device (1), and the center of the connection line of the double-row steel rails are located on the same vertical line.

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