Supporting leg rotating device in bridge erecting machine

Abstract

The utility model discloses a supporting leg rotating device in a bridge girder erection machine, which belongs to the technical field of bridge girder erection machines and comprises a shell, a gear clamping and stopping mechanism is arranged on one side of the shell, a rotating mechanism is arranged in the shell, a driving shaft is rotatably connected to the center of the interior of the shell, and a driving gear is arranged at the upper end of the driving shaft. According to the bridge erecting machine, the rotating mechanism is arranged, the driving gear can be conveniently driven by the rotating mechanism to rotate, meanwhile, the supporting rod is driven to rotate so that the bridge erecting machine can be driven to rotate, and the stability of the driving gear in the rotating process can be improved by arranging the sliding block and the annular sliding rail; the gear clamping and stopping mechanism is arranged, the gear block is manually controlled by the gear clamping and stopping mechanism to move, in this way, the problem that a driving gear is damaged due to clamping can be avoided in a visual inspection mode, and the stability of the pushing block in the sliding process can be improved by arranging a T-shaped block and a T-shaped groove.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge erection machines, and in particular relates to a leg rotating device in a bridge erection machine. Background Art

[0002] A bridge-building machine is a machine used for bridge construction. It saves manpower and improves work efficiency by lifting the beam, transporting the beam to the designated position and then lowering it. However, the existing bridge-building machine is not convenient for rotating its own angle, which makes it inconvenient for the bridge-building machine to build a curved bridge. Therefore, it is necessary to establish a bridge-building machine rotation device to adjust the angle of the bridge-building machine to facilitate bridge construction and improve bridge construction efficiency.

[0003] Chinese patent application No. 202121276890.0 discloses a rotating device for a bridge erection machine, including a base plate, a transmission shaft and a driven gear. Servo motors are installed on both sides of the inside of the base plate. A driven gear is fixed to the top of the servo motor, and a main gear is meshed on one side of the driven gear. A mounting plate is fixed to the top of the transmission shaft, and a supporting structure is provided at the bottom of the mounting plate. Lubrication structures are provided on both sides of the top of the shell, and a fixing mechanism is provided on one side of the main gear. The fixing mechanism includes an electric telescopic rod, a slide groove, a slider and teeth. The teeth are meshed on one side of the main gear, and a slider is fixed at the bottom of the teeth. The utility model pushes the slider through the electric telescopic rod, so that the slider pushes the teeth to get stuck in the inside of the main gear to prevent the main gear from rotating. The slide groove prevents the slider from shaking under force, thereby realizing the rapid fixing function of the device and preventing the main gear from rotating and affecting the use of the device, thereby improving the practicality of the device.

[0004] Although the above-mentioned patent realizes the rotation of the bridge-building machine legs, the rotating device provided therein requires two sets of drive motors to drive it, and at the same time cannot ensure the stability of the rotation process of the active gear; in addition, the clamping device provided therein for the active gear is driven by an electric push rod to clamp it, but the active gear is suddenly clamped when it rotates, which can easily damage the tooth block of the active gear, so the electric adjustment device is not practical on the clamping device. Utility Model Content

[0005] In order to solve the problems raised in the above-mentioned background technology, the utility model provides a leg rotating device in a bridge erecting machine, which has the characteristics of better stability in the rotation process of the driving gear and convenient manual locking of the driving gear.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a leg rotation device in a bridge-building machine, comprising a shell, a gear locking mechanism is provided on one side of the shell, a rotation mechanism is provided inside the shell, a driving shaft is rotatably connected to the inner center position of the shell, a driving gear is provided at the upper end of the driving shaft, and a support rod is provided at the upper end of the driving gear.

[0007] Preferably, the rotating mechanism comprises a rotating block, a rotating groove and a transmission assembly, the upper end surface of the driving shaft is provided with a rotating block, a rotating groove corresponding to the rotating block is opened inside the shell, and the transmission assembly is provided inside the shell.

[0008] Preferably, the rotating mechanism further comprises a slider and an annular slide rail, the slider is arranged on the lower side of the driving gear, and the annular slide rail corresponding to the slider is arranged on the upper end of the shell.

[0009] Preferably, the transmission assembly includes a driving gear 1, a driving shaft, a motor, a pulley 1, a transmission belt, a driven shaft, a first gear, a second gear, a rotating rod, a driving gear 2 and a pulley 2. A motor is provided on one side of the interior of the shell, a driving shaft is provided at the output end of the motor, a driving gear 1 is provided at the upper end of the driving shaft, a pulley 1 is provided on the surface of the driving shaft, a transmission belt is sleeved on the surface of the pulley 1, a pulley 2 is provided inside the other end of the transmission belt, a driven shaft is provided at the lower end of the pulley 2, a first gear is provided on the surface of the driven shaft, a second gear is meshingly installed on the side of the first gear, a rotating rod is provided running through the interior of the second gear, and a driving gear 2 is provided at the upper end of the rotating rod.

[0010] Preferably, the gear locking mechanism includes a turning handle, a mounting seat, a tooth block, a push block, a connecting rod, a slide plate and a threaded rod, a mounting seat is provided on the side of the shell, a threaded rod is provided in the internal rotation connection of the mounting seat, a turning handle is provided on the surface of the threaded rod, a slide plate is provided with a connecting rod on the side of the slide plate, a push block is provided on the other end of the connecting rod, and a tooth block is provided on the side of the push block.

[0011] Preferably, the gear locking mechanism further comprises a T-slot and a T-block, the lower end of the push block is provided with a T-block, and the upper end of the shell is provided with a T-slot corresponding to the T-block.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model is provided with a rotating mechanism, which can easily drive the driving gear to rotate and drive the support rod to rotate at the same time, so as to drive the bridge erection machine to rotate. By providing a slider and an annular slide rail, the stability of the driving gear rotation process can be improved.

[0014] 2. The utility model is provided with a gear stop mechanism, which moves the gear block by manual control, so that the problem of the active gear being stuck can be avoided by visual inspection. The stability of the push block sliding process can be improved by providing a T-block and a T-slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a three-dimensional diagram of the utility model;

[0016] Figure 2 It is a three-dimensional diagram of the rotating mechanism of the utility model;

[0017] Figure 3 It is a three-dimensional diagram of the transmission assembly of the utility model;

[0018] Figure 4 It is a three-dimensional diagram of the gear locking mechanism of the utility model.

[0019] In the figure: 1. shell; 2. rotating mechanism; 21. rotating block; 22. slider; 23. annular slide rail; 24. rotating groove; 25. transmission assembly; 251. driving gear 1; 252. driving shaft; 253. motor; 254. pulley 1; 255. transmission belt; 256. driven shaft; 257. first gear; 258. second gear; 259. rotating rod; 2510. driving gear 2; 2511. pulley 2; 3. driving shaft; 4. driving gear; 5. supporting rod; 6. gear locking mechanism; 61. turning handle; 62. mounting seat; 63. T-slot; 64. T-block; 65. tooth block; 66. push block; 67. connecting rod; 68. slide plate; 69. threaded rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example 1

[0022] See also Figure 1-4 The utility model provides the following technical solutions: a leg rotating device in a bridge erecting machine includes a shell 1, a gear locking mechanism 6 is arranged on one side of the shell 1, a rotating mechanism 2 is arranged inside the shell 1, a driving shaft 3 is rotatably connected to the center position of the inner part of the shell 1, a driving gear 4 is arranged on the upper end of the driving shaft 3, and a support rod 5 is arranged on the upper end of the driving gear 4.

[0023] Specifically, the rotating mechanism 2 includes a rotating block 21, a rotating groove 24 and a transmission assembly 25. The upper end surface of the driving shaft 3 is provided with the rotating block 21, the interior of the housing 1 is provided with a rotating groove 24 corresponding to the rotating block 21, and the interior of the housing 1 is provided with the transmission assembly 25.

[0024] By adopting the above technical solution, the driving gear 4 can be driven to rotate through the transmission component 25, the driving gear 4 can drive the driving shaft 3 to rotate, and the driving shaft 3 can drive the rotating block 21 to rotate inside the rotating groove 24, thereby improving the stability of the driving gear 4 rotation process.

[0025] Specifically, the rotating mechanism 2 further includes a slider 22 and an annular slide rail 23. The slider 22 is disposed on the lower side of the driving gear 4, and the annular slide rail 23 corresponding to the slider 22 is disposed on the upper end of the housing 1.

[0026] By adopting the above technical solution, when the driving gear 4 rotates, it also drives the slider 22 to rotate inside the annular slide rail 23, thereby further improving the stability of the driving gear 4 during rotation.

[0027] Specifically, the transmission assembly 25 includes a driving gear 1 251, a driving shaft 252, a motor 253, a pulley 1 254, a driving belt 255, a driven shaft 256, a first gear 257, a second gear 258, a rotating rod 259, a driving gear 2510 and a pulley 2511. The motor 253 is disposed on one side of the inner part of the housing 1, and the output end of the motor 253 is disposed with the driving shaft 252. The upper end of the driving shaft 252 is provided with the driving gear 1 251, and the surface of the driving shaft 252 is provided with a A pulley 254 is provided, a transmission belt 255 is sleeved on the surface of the pulley 254, a pulley 2511 is provided inside the other end of the transmission belt 255, a driven shaft 256 is provided at the lower end of the pulley 2511, a first gear 257 is provided on the surface of the driven shaft 256, a second gear 258 is meshedly installed on the side of the first gear 257, a rotating rod 259 is provided inside the second gear 258, and a driving gear 2510 is provided at the upper end of the rotating rod 259.

[0028] By adopting the above technical solution, the motor 253 is turned on, and the motor 253 drives the driving shaft 252 to rotate through the output end. The driving shaft 252 rotates and drives the driving gear 1 251 to rotate. The driving shaft 252 rotates and drives the pulley 1 254 to rotate. The rotation of the pulley 1 254 drives the transmission belt 255 to rotate. The rotation of the transmission belt 255 drives the pulley 2 2511 to rotate. The rotation of the pulley 2 2511 drives the driven shaft 256 to rotate. The driven shaft 256 rotates and drives the first gear 257 to rotate. The rotation of the first gear 257 drives the second gear 258 to rotate. The rotation of the second gear 258 drives the rotating rod 259 to rotate. The rotation of the rotating rod 259 drives the driving gear 2 2510 to rotate, thereby driving the driving gear 4 to rotate stably.

[0029] When the present embodiment is in use, the motor 253 is turned on, and the motor 253 drives the driving shaft 252 to rotate through the output end. The driving shaft 252 rotates and drives the driving gear 1 251 to rotate. The driving shaft 252 rotates and drives the pulley 1 254 to rotate at the same time. The pulley 1 254 rotates and drives the transmission belt 255 to rotate. The transmission belt 255 rotates and drives the pulley 2 2511 to rotate. The pulley 2 2511 rotates and drives the driven shaft 256 to rotate. The driven shaft 256 rotates and drives the first gear 257 to rotate. The first gear 257 rotates and drives the second gear 258 to rotate. The second gear 258 rotates and drives the rotating rod 259 to rotate. The rotating rod 259 rotates and drives the driving gear 2 2510 to rotate, so that the driving gear 4 can be driven to rotate stably. The driving gear 4 rotates and drives the driving shaft 3 to rotate. The driving shaft 3 rotates and drives the rotating block 21 to rotate inside the rotating groove 24, thereby improving the stability of the driving gear 4 during rotation. When the driving gear 4 rotates, it also drives the slider 22 to rotate inside the annular slide rail 23, thereby further improving the stability of the driving gear 4 during rotation.

[0030] Example 2

[0031] The present embodiment is different from the embodiment 1 in that the gear locking mechanism 6 comprises a turning handle 61, a mounting seat 62, a tooth block 65, a push block 66, a connecting rod 67, a slide plate 68 and a threaded rod 69. The side of the housing 1 is provided with a mounting seat 62, the inner rotation connection of the mounting seat 62 is provided with a threaded rod 69, the other end of the threaded rod 69 is provided with a turning handle 61, the surface of the threaded rod 69 is provided with a slide plate 68 in threaded connection, the side of the slide plate 68 is provided with a connecting rod 67, the other end of the connecting rod 67 is provided with a push block 66, and the side of the push block 66 is provided with a tooth block 65.

[0032] By adopting the above technical solution, in order to stop the driving gear 4, the turning handle 61 is rotated, and the turning handle 61 drives the threaded rod 69 to rotate, and the threaded rod 69 drives the slide plate 68 to slide, and the sliding of the slide plate 68 drives the connecting rod 67 to move, and the movement of the connecting rod 67 drives the push block 66 to move, and the push block 66 drives the tooth block 65 to get stuck on the side of the driving gear 4, thereby stopping the driving gear 4.

[0033] Specifically, the gear locking mechanism 6 further includes a T-shaped slot 63 and a T-shaped block 64. The lower end of the push block 66 is provided with the T-shaped block 64. The upper end of the housing 1 is provided with a T-shaped slot 63 corresponding to the T-shaped block 64.

[0034] By adopting the above technical solution, when the push block 66 slides, it will drive the T-block 64 to slide inside the T-slot 63, thereby improving the stability of the sliding process of the push block 66.

[0035] When the present embodiment is in use, in order to stop the driving gear 4, the turning handle 61 is rotated, and the turning handle 61 drives the threaded rod 69 to rotate, and the threaded rod 69 drives the slide plate 68 to slide, and the sliding of the slide plate 68 drives the connecting rod 67 to move, and the movement of the connecting rod 67 drives the push block 66 to move, and the push block 66 drives the tooth block 65 to be stuck on the side of the driving gear 4, thereby stopping the driving gear 4. When the push block 66 slides, it drives the T-block 64 to slide inside the T-slot 63, thereby improving the stability of the sliding process of the push block 66.

[0036] Working principle and use process of the utility model: When the utility model is in use, the motor 253 is turned on, and the motor 253 drives the driving shaft 252 to rotate through the output end, and the driving shaft 252 rotates to drive the driving gear 1 251 to rotate, and the driving shaft 252 rotates and drives the pulley 1 254 to rotate at the same time, and the pulley 1 254 rotates to drive the transmission belt 255 to rotate, and the transmission belt 255 rotates to drive the pulley 2 2511 to rotate, and the pulley 2 2511 rotates to drive the driven shaft 256 to rotate, and the driven shaft 256 rotates to drive the first gear 257 to rotate, and the first gear 257 rotates to drive the second gear 258 to rotate, and the second gear 258 rotates to drive the rotating rod 259 to rotate, and the rotating rod 259 rotates to drive the driving gear 2 2510 to rotate, so that the driving gear 4 can be driven to rotate stably, and the driving gear 4 rotates The driving shaft 3 is driven to rotate, and the driving shaft 3 drives the rotating block 21 to rotate inside the rotating groove 24, thereby improving the stability of the rotation process of the driving gear 4. When the driving gear 4 rotates, it also drives the slider 22 to rotate inside the annular slide rail 23, thereby further improving the stability of the rotation process of the driving gear 4; in order to stop the driving gear 4, by rotating the turning handle 61, the turning handle 61 drives the threaded rod 69 to rotate, the threaded rod 69 drives the slide plate 68 to slide, the slide plate 68 slides and drives the connecting rod 67 to move, the connecting rod 67 moves and drives the push block 66 to move, the push block 66 moves and drives the tooth block 65 to be stuck on the side of the driving gear 4, thereby stopping the driving gear 4, and when the push block 66 slides, it drives the T-block 64 to slide inside the T-slot 63, thereby improving the stability of the sliding process of the push block 66.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A leg rotating device in a bridge erecting machine, comprising a housing, characterized in that: A gear locking mechanism is arranged on one side of the shell, a rotating mechanism is arranged inside the shell, a driving shaft is rotatably connected to the center position of the shell, a driving gear is arranged on the upper end of the driving shaft, and a support rod is arranged on the upper end of the driving gear.

2. The leg rotating device in the bridge erecting machine according to claim 1, characterized in that: The rotating mechanism comprises a rotating block, a rotating groove and a transmission assembly. The upper end surface of the driving shaft is provided with a rotating block, a rotating groove corresponding to the rotating block is provided inside the shell, and the transmission assembly is provided inside the shell.

3. The leg rotating device in the bridge erecting machine according to claim 2, characterized in that: The rotating mechanism also includes a slider and an annular slide rail. The lower side of the driving gear is provided with a slider, and the upper end of the shell is provided with an annular slide rail corresponding to the slider.

4. The leg rotating device in the bridge erecting machine according to claim 2, characterized in that: The transmission assembly includes a driving gear 1, a driving shaft, a motor, a pulley 1, a transmission belt, a driven shaft, a first gear, a second gear, a rotating rod, a driving gear 2 and a pulley 2. A motor is arranged on one side of the interior of the shell, a driving shaft is arranged on the output end of the motor, a driving gear 1 is arranged on the upper end of the driving shaft, a pulley 1 is arranged on the surface of the driving shaft, a transmission belt is sleeved on the surface of the pulley 1, a pulley 2 is arranged inside the other end of the transmission belt, a driven shaft is arranged at the lower end of the pulley 2, a first gear is arranged on the surface of the driven shaft, a second gear is meshed and installed on the side of the first gear, a rotating rod is arranged through the interior of the second gear, and a driving gear 2 is arranged on the upper end of the rotating rod.

5. The leg rotating device in the bridge erecting machine according to claim 1, characterized in that: The gear locking mechanism includes a turning handle, a mounting seat, a tooth block, a push block, a connecting rod, a slide plate and a threaded rod. A mounting seat is provided on the side of the shell, a threaded rod is provided for internal rotation connection of the mounting seat, a turning handle is provided on the surface of the threaded rod for threaded connection, a connecting rod is provided on the side of the slide plate, a push block is provided on the other end of the connecting rod, and a tooth block is provided on the side of the push block.

6. The leg rotating device in the bridge erecting machine according to claim 5, characterized in that: The gear locking mechanism further comprises a T-shaped slot and a T-shaped block. The lower end of the push block is provided with a T-shaped block, and the upper end of the shell is provided with a T-shaped slot corresponding to the T-shaped block.

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