Integrated high-speed rail track slab tensioning device

Abstract

The utility model relates to a kind of integrated high rail slab tensioning device. Mainly to solve the tensioning efficiency of existing tensioning device low problem and design.It includes pedestal, front and rear moving slide rail on pedestal has front and rear moving slide block, the cylinder rod of first air cylinder on pedestal is connected with front and rear moving slide block;Front and rear moving beam with recess in middle is fixed on front and rear moving slide block.There is left and right moving slide rail on front and rear moving beam, and there is tensioning bottom plate on corresponding two left and right moving slide blocks, the gear on the output shaft of servo motor on tensioning bottom plate is engaged with rack on front and rear moving beam, tensioning bottom plate has brake and support, the cylinder rod end of tensioning oil cylinder on the top of support has sensor, sensor is connected with pneumatic gripper.Second air cylinder's cylinder rod on support is connected with driving motor mounting plate, driving motor is installed on driving motor mounting plate, and there is locking gear on the output shaft of driving motor.Advantage is to improve the tensioning efficiency of rail slab.

Description

Technical Field

[0001] This invention belongs to the field of high-speed railway track slab production equipment, and in particular relates to a high-speed railway track slab tensioning device. Background Technology

[0002] High-speed railway track slabs and their molds come in various specifications and are quite heavy. Existing tensioning devices, due to varying tensioning lengths and the inability to adjust the position of prestressed steel bars, cannot meet the tensioning requirements of different track slab specifications with a single device, resulting in poor versatility. Furthermore, traditional tensioning devices lack adaptability in their tensioning mechanisms, leading to poor tension synchronization and uneven prestressing force values ​​in the track slabs. Excessive force deviations can cause deformation of the finished track slabs, which is irreparable. Therefore, producing several different types of track slabs requires different types of tensioning devices, increasing costs and impacting production efficiency. Thus, there is an urgent need to improve the tensioning devices in existing assembly line production lines. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an integrated high-speed railway track slab tensioning device that can meet the tensioning needs of different types of track slabs, ensure independent and synchronous tensioning of each prestressed steel bar of the track slab, and improve the tensioning efficiency of the track slab.

[0004] The above objective is achieved as follows: it includes a base, on the upper surface of which a front-to-back sliding rail is fixed, a front-to-back sliding block is installed in conjunction with the front-to-back sliding rail, the cylinder body of a first cylinder that controls the front-to-back movement is fixed on the base, and the cylinder rod of the first cylinder is connected to the bottom of the front-to-back sliding block; a front-to-back moving beam is fixed on the front-to-back moving block, and the operation of the first cylinder that controls the front-to-back movement drives the front-to-back moving beam to move back and forth through the front-to-back moving block.

[0005] The upper surface of the front and rear moving beams has a downward recessed groove in the left and right direction. The upper surfaces of the front and rear moving beams on both sides of the groove are fixed with left and right moving slide rails. Several left and right moving sliders are provided on each of the two left and right moving slide rails. A tensioning base plate is fixed on each pair of left and right moving sliders on the two left and right moving slide rails. A servo motor is fixed on each tensioning base plate.

[0006] The rack is fixed on the upper surface of the front and rear moving beam behind the groove. The gears on the output shafts of each servo motor mesh with the rack. The operation of each servo motor can drive each tension base plate and the left and right moving slider to move left and right on the left and right moving slide rail.

[0007] Each tensioning base plate is equipped with a brake on its lower surface. The brake is located in the groove of the front and rear moving beams. When the tensioning base plate reaches the fixed position, the brake is activated and locks with the front and rear moving beams, thereby fixing the position of the tensioning base plate.

[0008] Each tensioning base plate has a bracket fixed to its upper surface, a tensioning cylinder fixed to the top of the bracket, a support plate fixed to the bracket behind the tensioning cylinder, a sensor connected to the end of the cylinder rod of the tensioning cylinder, and a pneumatic gripper for tensioning connected to the other end of the sensor.

[0009] The pneumatic grippers and brakes used for tensioning can be purchased from the market.

[0010] Below the support plate is a vertically mounted second cylinder for controlling up and down movement. The second cylinder is fixed on the bracket, and the cylinder rod of the second cylinder is connected to the drive motor mounting plate. The slider of the drive motor mounting plate is installed in conjunction with the slide rail of the bracket. The drive motor is fixed on the drive motor mounting plate, and a locking gear is fixed on the output shaft of the drive motor.

[0011] The advantages of this invention are: the device has a reasonable structural design, is easy to operate, and is multifunctional. One device can meet the tensioning needs of different types of track slabs, ensuring independent control and synchronous tensioning of each prestressed steel bar in the track slab, automatic locking, and more accurately ensuring the required tension force value, thereby improving the quality of the track slab and the tensioning efficiency of the track slab. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0013] Figure 2 This is a schematic diagram of the working state of the present invention before tensioning;

[0014] Figure 3 This is a schematic diagram of the working state of the present invention during the tensioning process;

[0015] Figure 4 This is a top-view schematic diagram of the working state of the present invention during the tensioning process;

[0016] Figure 5 This is a schematic diagram of the working state of the present invention after tensioning is completed. Detailed Implementation

[0017] The following is combined Figure 1-5 The present invention will be further described;

[0018] It includes a base 1, with a front-to-back sliding rail 3 fixed on the upper surface of the base, a front-to-back sliding block 4 installed in conjunction with the front-to-back sliding rail 3, a cylinder body of a first cylinder 5 that controls the front-to-back movement fixed on the base, and the cylinder rod of the first cylinder connected to the bottom of the front-to-back sliding block; a front-to-back moving beam 2 fixed on the front-to-back moving block, and the first cylinder that controls the front-to-back movement drives the front-to-back moving beam to move back and forth through the front-to-back moving block.

[0019] The upper surface of the front and rear moving beams has a downward recessed groove in the left and right direction. The upper surfaces of the front and rear moving beams on both sides of the groove are fixed with left and right moving slide rails 7. Several left and right moving sliders 8 are provided on each of the two left and right moving slide rails. A tensioning base plate 6 is fixed on each pair of left and right moving sliders on the two left and right moving slide rails. A servo motor 11 is fixed on each tensioning base plate.

[0020] The rack 9 is fixed on the upper surface of the front and rear moving beam behind the groove. The gears 10 on the output shaft of each servo motor mesh with the rack 9. The operation of each servo motor can drive each tension base plate and the left and right moving slider to move left and right on the left and right moving slide rail.

[0021] Each tensioning base plate is equipped with a brake 12 on its lower surface. The brake is located in the groove of the front and rear moving beams. When the tensioning base plate reaches the fixed position, the brake is activated and locks with the front and rear moving beams to fix the position of the tensioning base plate.

[0022] Each tensioning base plate has a bracket 20 fixed on its upper surface, a tensioning cylinder 16 fixed on the top of the bracket, a support plate 13 fixed on the bracket behind the tensioning cylinder, a sensor 15 connected to the end of the cylinder rod of the tensioning cylinder, and a pneumatic gripper 14 for tensioning connected to the other end of the sensor.

[0023] The pneumatic grippers and brakes used for tensioning can be purchased from the market.

[0024] Below the support plate 13, there is a vertically arranged second cylinder 17 for controlling up and down movement. The second cylinder is fixed on the bracket. The cylinder rod of the second cylinder is connected to the drive motor mounting plate 21. The slider of the drive motor mounting plate is installed in conjunction with the slide rail 22 of the bracket. The drive motor 18 is fixed on the drive motor mounting plate. A locking gear 19 is fixed on the output shaft of the drive motor.

[0025] Work process:

[0026] Installing this device on one side of the automated track slab production line, the device first identifies and confirms the type of track slab to be tensioned. The corresponding brake 12 under each tensioning base plate 6 is released, the servo motor 11 starts, driving the gear 10 to rotate. Through the gear meshing with the rack 9 on the front and rear moving beams, the left-right moving slider 8 under the tensioning base plate 6 moves left and right along the left-right moving slide rail 7 on the front and rear moving beams 2. It automatically stops at the set position, and the brake 12 engages. At this time, the relative position of the pneumatic gripper 14 is consistent with the relative position of the tensioning tool rod 24 on the high-speed rail track slab mold 25 where the tensioning operation is to be performed.

[0027] When the high-speed rail track slab mold with the tensioning tool rod arrives at one side of the tensioning device and stops in place, the forward and backward moving cylinder 5 on the base 1 extends forward, causing the forward and backward moving slider 4 under the forward and backward moving beam 2 to extend forward along the forward and backward moving slide rail 3 on the base 1. It stops when the support plate 13 contacts the high-speed rail track slab mold 22.

[0028] During tensioning, the pneumatic gripper 14 closes and grabs the tensioning tool rod 24. The cylinder rod of the tensioning cylinder 16 retracts to the sensor 15 and automatically holds the load for 1 minute after the tensioning rate requirement is met.

[0029] When the time is up, the cylinder rod of the second cylinder 17 extends, causing the locking gear 19 to contact the locking nut 23. The drive motor 18 starts and drives the locking gear to rotate, and the contacted locking nut also rotates, achieving the purpose of locking and completing the locking of the locking nut 23 and the high-speed rail track plate mold 25.

[0030] After tensioning is completed, the drive motor 18 stops, the cylinder rod of the second cylinder 17 retracts, causing the locking gear 19 to separate from the locking nut 23. The cylinder rod of the tensioning cylinder 16 extends, the pneumatic gripper 14 opens, and the cylinder rod of the first cylinder 5 retracts, causing the support plate 13 to separate from the high-speed rail track slab mold 25. The prestressing tensioning of the track slab is completed, and the high-speed rail track slab mold enters the next process. This device awaits repeated tensioning operations on the next high-speed rail track slab mold 25.

[0031] By adjusting the relative position of the tensioning base plate 6, prestressing tensioning operations can be quickly performed on various types of track slabs, and the tension can be automatically locked.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An integrated high-speed railway track slab tensioning device, comprising a base (1), characterized in that: The upper surface of the base is fixed with a front-to-back sliding rail (3), and the front-to-back sliding block (4) is installed in conjunction with the front-to-back sliding rail (3). The cylinder body of the first cylinder (5) that controls the front-to-back movement is fixed on the base, and the cylinder rod of the first cylinder is connected to the bottom of the front-to-back sliding block. The front-to-back moving beam (2) is fixed on the front-to-back sliding block. The upper surface of the front and rear moving beams has a downward recessed groove in the left and right direction. The upper surfaces of the front and rear moving beams on both sides of the groove are fixed with left and right moving slide rails (7). Several left and right moving sliders (8) are provided on each of the two left and right moving slide rails. A tensioning base plate (6) is fixed on each pair of left and right moving sliders on the two left and right moving slide rails. A servo motor (11) is fixed on each tensioning base plate. The rack (9) is fixed on the upper surface of the front and rear moving beam behind the groove, and the gears (10) on the output shaft of each servo motor mesh with the rack (9); A brake (12) is installed on the lower surface of each tensioning base plate, and the brake is located in the groove of the front and rear moving beams; Each tensioning base plate has a bracket (20) fixed on its upper surface. A tensioning cylinder (16) is fixed on the top of the bracket. A support plate (13) is fixed on the bracket behind the tensioning cylinder. A sensor (15) is connected to the end of the cylinder rod of the tensioning cylinder. A pneumatic gripper (14) for tensioning is connected to the other end of the sensor. Below the support plate (13) is a vertically arranged second cylinder (17) for controlling up and down movement. The second cylinder is fixed on the bracket. The cylinder rod of the second cylinder is connected to the drive motor mounting plate (21). The slider of the drive motor mounting plate is installed in conjunction with the slide rail (22) of the bracket. The drive motor (18) is fixed on the drive motor mounting plate. A locking gear (19) is fixed on the output shaft of the drive motor.

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