Locking mechanism for track gauge adjusting device of verification table of railway track inspection tester

Abstract

A locking mechanism for a track gauge adjusting device of a verification table of a railway track inspection tester belongs to the technical field of track positioning of the verification table of the railway track inspection tester and comprises the verification table, an adjusting groove is formed in the upper surface of the verification table in a penetrating manner, a precise lead screw is rotatably mounted in the adjusting groove, and a lead screw sliding table sleeves the outer surface of the precise lead screw; a first locking mechanism is fixedly installed in the adjusting groove and used for locking the precise lead screw, and a second locking mechanism is installed in the lead screw sliding table and used for locking the lead screw sliding table and the adjusting groove. According to the utility model, the first locking mechanism can be utilized to abut against and fix the precise lead screw, and the second locking mechanism is utilized to fix the lead screw sliding table, so that the dual-fixing effect is achieved, the track gauge recurrence value is accurately adjusted to a precise position, and the influence on the detection precision is effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model railway track inspection appearance test platform track positioning technical field, more particularly in kind railway track inspection appearance test platform gauge adjustment device locking mechanism. BACKGROUND

[0002] Railway track inspection appearance gauge recurrence adopts direct measurement principle. The test platform long beam is in horizontal state, and the track inspection appearance is placed on the test platform two long beams. The active long beam is moved through the gauge adjustment device. The test platform gauge display device will display the gauge value between 1410mm and 1470mm. The active long beam is moved to a certain position. The test platform gauge display device displays the gauge value. The track inspection appearance displays the gauge value. The difference between the test platform gauge display value and the track inspection appearance gauge display value is measured at different positions. The gauge error value is detected.

[0003] At present, most of the railway track inspection appearance test platform adopts screw rod driving mechanism. When the track inspection appearance is placed above the test platform track, the connecting seat on the screw rod driving mechanism is easily offset under the action of force. This structure makes it difficult to accurately adjust the gauge recurrence value to the predetermined accurate position during the gauge recurrence operation, which adversely affects the detection accuracy of the track inspection appearance, resulting in deviation of the detection result and affecting the detection accuracy. Therefore, a railway track inspection appearance test platform gauge adjustment device locking mechanism is provided to solve the above technical problems. CONTENT OF THE UTILITY MODEL

[0004] In view of the railway track inspection appearance test platform gauge adjustment device in the prior art, no corresponding fastening structure is provided. In actual use, the gauge recurrence value is difficult to accurately adjust to the accurate position, which affects the detection accuracy. The utility model provides a railway track inspection appearance test platform gauge adjustment device locking mechanism. When the test platform track on the screw rod sliding table is moved to the detection position, the first locking mechanism is used to tightly fix the precision screw rod, and the second locking mechanism is used to fix the screw rod sliding table, so as to achieve the effect of double fixation, thereby ensuring that the gauge recurrence value is accurately adjusted to the accurate position. The problems of the railway track inspection appearance test platform gauge adjustment device in the prior art, such as no corresponding fastening structure, easy to offset, difficult to accurately adjust the gauge recurrence value to the accurate position, and affecting the detection accuracy, are effectively solved. The specific technical scheme is as follows:

[0005] The utility model provides a railway track inspection appearance test board track gauge adjusting device locking mechanism, including test board, the upper surface of test board is equipped with the adjusting groove who has passed through, the precise lead screw is rotatably installed in adjusting groove, the outer surface of precise lead screw is equipped with the screw slide table, first locking mechanism is fixedly installed in adjusting groove, and first locking mechanism is used for locking precise lead screw, second locking mechanism is installed in screw slide table, and second locking mechanism is used for locking between screw slide table and adjusting groove.

[0006] In the above technical solution, the first locking mechanism includes a fixed block, the fixed block is fixedly installed in the adjusting groove, and the fixed block is threadedly connected with the precise lead screw, the upper surface of the fixed block is threadedly connected with a clamping bolt, and the lower surface of the clamping bolt is in contact with the outer surface of the precise lead screw.

[0007] In the above technical solution, the front surface of the screw slide table is provided with two sliding grooves, and the sliding grooves are provided with sliding channels.

[0008] The second locking mechanism includes a movable plate, the left and right surfaces of the movable plate are rotatably provided with two push-pull rods, the ends of the push-pull rods away from the movable plate are rotatably provided with clamping blocks, the clamping blocks are slidably installed in the sliding grooves, the push-pull rods are located in the sliding channels, a T-shaped column is rotatably installed in the movable plate, the lower surface of the T-shaped column is fixedly provided with an operating block, the upper surface of the T-shaped column is fixedly provided with a threaded column, and the threaded column is threadedly connected with the lower surface of the screw slide table.

[0009] In the above technical solution, the inner surfaces of the clamping blocks are fixedly provided with ear blocks, and the ear blocks are rotatably provided with hinge shafts.

[0010] In the above technical solution, the clamping blocks are high-carbon steel metal blocks.

[0011] Compared with the prior art, the railway track inspection appearance test board track gauge adjusting device locking mechanism has the beneficial effects that: when the track on the screw slide table moves to the detection position, the first locking mechanism is used to tightly fix the precise lead screw, and the second locking mechanism is used to fix the screw slide table, so that the double fixing effect is achieved, and the track gauge reproduction value is accurately adjusted to the accurate position, and the detection precision is effectively avoided. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a three-dimensional structure schematic view of the utility model.

[0013] Figure 2 It is a front view structure schematic view of the utility model.

[0014] Figure 3 It is the main view structural schematic diagram of the screw slide of the utility model.

[0015] Figure 4 It is the three-dimensional structural schematic diagram of the screw slide of the utility model.

[0016] Figure 5 It is the cross section structural schematic diagram of the carrier plate of the utility model.

[0017] Figure 6 It is the bottom view structural schematic diagram of the screw slide of the utility model.

[0018] Figure 7 It is the cross section structural schematic diagram of the movable plate of the utility model.

[0019] Figures 1-7 Among them, 1, the calibration platform; 11, the adjusting groove; 2, the precision screw; 3, the screw slide; 31, the sliding groove; 32, the slide; 4, the first locking mechanism; 41, the fixed block; 42, the abutting bolt; 5, the second locking mechanism; 51, the movable plate; 52, the push-pull rod; 53, the abutting block; 531, the ear block; 54, the I-shaped column; 55, the operation block; 56, the threaded column. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] The front, back, left, right, top and bottom in the embodiments are described with reference to the base surface. Please refer to the drawings, Figure 1 The utility model provides a technical scheme: Figures 1-7

[0022] A gauge calibration platform gauge adjustment device locking mechanism of railway track inspection instrument, including the calibration platform 1, the upper surface of the calibration platform 1 is through the establishment of adjusting groove 11, the adjusting groove 11 is rotatably installed with precision screw 2, the outer surface of precision screw 2 is sleeved with screw slide 3, the adjusting groove 11 is fixedly installed with first locking mechanism 4, and the first locking mechanism 4 is used for locking precision screw 2, and the second locking mechanism 5 is installed in the screw slide 3, and the second locking mechanism 5 is used for locking between the screw slide 3 and the adjusting groove 11;

[0023] ​The screw sliding table 3 is provided with a mounting hole, and the table rail used for detection is mounted on the screw sliding table 3 through external bolts. When the first locking mechanism 4 and the second locking mechanism 5 are loosened, the precise screw 2 can be rotated to drive the screw sliding table 3 to move, so as to change the position of the table rail.

[0024] It should be noted that, as shown in Figure 1 The first locking mechanism 4 includes a fixed block 41 fixedly installed in the adjusting groove 11, and the fixed block 41 is in threaded connection with the precise screw 2. The upper surface of the fixed block 41 is screwed with a clamping bolt 42. When the lower surface of the clamping bolt 42 is in close contact with the outer surface of the precise screw 2, the clamping bolt 42 can be used to clamp and fix the precise screw 2, so as to avoid easy rotation of the precise screw 2 under stress, thereby affecting the position accuracy of the screw sliding table 3.

[0025] As shown in Figure 2 The front surface of the screw sliding table 3 is provided with two sliding grooves 31, and the sliding grooves 31 are provided with sliding channels 32. The second locking mechanism 5 includes a movable plate 51, and the left and right surfaces of the movable plate 51 are rotatably provided with two push-pull rods 52. The ends of the push-pull rods 52 away from the movable plate 51 are rotatably provided with clamping blocks 53, and the clamping blocks 53 are transversely slidably installed in the sliding grooves 31. The push-pull rods 52 are located in the sliding channels 32. The movable plate 51 is rotatably provided with an I-shaped column 54. The lower surface of the I-shaped column 54 is fixedly provided with an operating block 55, and the upper surface of the I-shaped column 54 is fixedly provided with a threaded column 56. The threaded column 56 is screwed to the lower surface of the screw sliding table 3.

[0026] When the locking action is performed on the screw sliding table 3, the operating block 55 is rotated, which drives the I-shaped column 54 and the threaded column 56 connected thereto to rotate synchronously. With the rotation of the threaded column 56, it is screwed into the screw sliding table 3 according to the screw transmission principle. In this process, the rotation of the I-shaped column 54 drives the movable plate 51 to move upward along the vertical direction. The upward movement of the movable plate 51, through the linkage cooperation between the movable plate 51 and the push-pull rods 52, causes the clamping blocks 53 to slide in the sliding grooves 31 of the screw sliding table 3 towards the outside. Finally, the outside surface of the clamping blocks 53 is tightly fitted with the inside wall of the adjusting groove 11, and the stable fixation of the screw sliding table 3 is realized by relying on the increased friction force between the two, so as to ensure that the screw sliding table 3 remains stable in position during work, avoiding the influence of displacement on the equipment operation accuracy.

[0027] Compared with the prior art, the utility model discloses the first locking mechanism 4 and the second locking mechanism 5 through the layout, when the table rail of the lead screw sliding table 3 reaches the detection position, the first locking mechanism 4 can be carried out to the precision lead screw 2 and fixed operation is fixed, and the second locking mechanism 5 is responsible for the firm locking of the lead screw sliding table 3.This double insurance fixing mode realizes the double steady effect of the lead screw sliding table 3, and the double fixing design can significantly reduce the influence of the factors such as the slight displacement caused by external vibration and equipment operation on the gauge repeat value adjustment accuracy, ensures that the gauge repeat value can be accurately and accurately adjusted to the preset accurate position, and can meet the strict requirements of high-precision detection tasks on equipment stability and precision.

[0028] Specifically, as shown in Figure 5 The inner side surface of the abutting block 53 is fixedly installed with an ear block 531, a hinge shaft is installed between the ear block 531 and the corresponding push-pull rod 52, and the abutting block 53 is rotationally connected with the push-pull rod 52 through the cooperation of the ear block 531 and the hinge shaft.

[0029] Finally, in order to strengthen the wear resistance and service life of the abutting block 53, the abutting block 53 needs to be set as a metal block of high-carbon steel material. High-carbon steel has the characteristics of high carbon content, which makes it have excellent hardness and strength. In the working condition of long-term frequent close abutment and friction with the inner side wall of the adjusting groove 11, it can effectively resist wear, compared with ordinary materials, can significantly reduce the wear rate and prolong the service life.

Claims

1. A locking mechanism of a gauge adjustment device of a track gauge inspection tester calibration bench, comprising a calibration bench (1), characterized in that, The upper surface of the detection platform (1) is provided with an adjusting groove (11), a precision lead screw (2) is rotatably installed in the adjusting groove (11), an outer surface of the precision lead screw (2) is sleeved with a lead screw sliding table (3), a first locking mechanism (4) is fixedly installed in the adjusting groove (11) and used for locking the precision lead screw (2), and a second locking mechanism (5) is installed in the lead screw sliding table (3) and used for locking the lead screw sliding table (3) and the adjusting groove (11).

2. The locking mechanism of the gauge adjustment device of the track gauge calibration platform for track inspection instrument according to claim 1, characterized in that, The first locking mechanism (4) comprises a fixed block (41) which is fixedly installed in the adjusting groove (11) and is threadedly connected between the fixed block (41) and the precision lead screw (2), an abutting bolt (42) is screwedly installed on an upper surface of the fixed block (41), and a lower surface of the abutting bolt (42) is in abutment with an outer surface of the precision lead screw (2).

3. The locking mechanism of the gauge adjustment device of the track gauge calibration platform for track inspection instrument according to claim 1, characterized in that, A front surface of the lead screw sliding table (3) is provided with two sliding grooves (31), and a sliding channel (32) is provided in each of the sliding grooves (31). The second locking mechanism (5) comprises a movable plate (51), two push-pull rods (52) are rotatably installed on left and right surfaces of the movable plate (51), an abutting block (53) is rotatably installed at an end of each of the push-pull rods (52) and away from the movable plate (51), the abutting block (53) is slidably installed in the sliding groove (31), the push-pull rod (52) is located in the sliding channel (32), a I-shaped column (54) is rotatably installed in the movable plate (51), an operating block (55) is fixedly installed on a lower surface of the I-shaped column (54), a threaded column (56) is fixedly installed on an upper surface of the I-shaped column (54), and the threaded column (56) is screwedly installed on a lower surface of the lead screw sliding table (3).

4. The gauge adjustment locking mechanism of a railway track inspection instrument calibration platform according to claim 3, wherein, Inner side surfaces of the abutting blocks (53) are fixedly installed with ear blocks (531), and a hinge shaft is installed between each of the ear blocks (531) and the corresponding push-pull rod (52).

5. The gauge adjustment locking mechanism of a railway track inspection instrument calibration platform according to claim 3, wherein, The abutting blocks (53) are metal blocks made of high-carbon steel.

Images