CN111945490A - Track slab fine adjustment bracket - Google Patents

Abstract

The invention relates to the technical field of ballastless track construction, and provides a track plate fine adjustment bracket. The track plate fine adjustment bracket includes a bracket body, a rail screw is vertically arranged above the bracket body, and an adjustment mechanism is arranged in the bracket body which is drivingly connected with the rail screw and can drive the track plate to move. In the present application, two rail plate fine adjustment brackets are arranged on the rail plate, and the rail direction adjustment of the rail plate is realized through the cooperation of the rail direction screw rod and the adjustment mechanism, which effectively improves the adjustment accuracy, and at the same time increases the adjustment range, so as to avoid the occurrence of misalignment and rework. phenomenon, and the rail screw is arranged vertically, which is convenient for the staff to adjust manually. It can also be matched with the execution structure on the track plate fine adjustment machine to realize intelligent adjustment. This design method can not only reduce the construction intensity of workers, but also greatly improve the track plate. Fine-tune efficiency.

Description

Track Plate Fine Adjustment Bracket

technical field

The invention relates to the field of ballastless track construction, in particular to a track plate fine adjustment bracket.

Background technique

With the rapid development of my country's high-speed railways, prefabricated track projects have gradually become the trend of railway development. The CRTS III slab ballastless track in my country optimizes and integrates the existing ballastless track, simplifies the construction steps and increases the construction efficiency. At present, most of the railway construction adopts CRTS III slab ballastless track.

As the core technology of slab ballastless track construction control, the fine adjustment of track slab has very strict requirements on the fine adjustment process. Most of the traditional slab-type ballastless track construction is adjusted manually with simple fine-adjustment claws. When the track plate is adjusted, four fine-adjustment claws are required to be fixed on the four adjustment ends of the track plate. Adjustment bolts on the jaws allow fine adjustment of the track plate. However, the construction situation of this track slab still has the following defects:

(1) The laying accuracy of the track slab is insufficient. Since the simple fine-adjusting claws are scattered around the track slab, the combined adjustment force is not clear. There are three-way adjustment factors at the four positions during slab laying, which interfere with each other, which not only reduces the laying accuracy, but also It also reduces the laying efficiency;

(2) The adjustment stroke of the track plate is not enough. The height adjustment stroke of the simple fine adjustment claw is sufficient. The disadvantage is that the horizontal adjustment stroke is generally only 15mm. In actual construction, if the rough laying process is not in place, it is easy to cause rework. , affecting the construction efficiency;

(3) The labor intensity is high, and many construction personnel are required. The design concept of simple and fine-adjusting claw does not conform to the principle of ergonomics. It not only requires many people and high-strength adjustment of the track plate, but also the manual operation position is low, resulting in long-term workers. Bend over construction requires higher physical fitness of workers.

SUMMARY OF THE INVENTION

In order to solve the above technical problems or at least partially solve the above technical problems, the present invention provides a track plate fine adjustment bracket, which includes a bracket body disposed on the track plate, and a rail is vertically arranged above the bracket body. The bracket body is provided with an adjustment mechanism that is drivingly connected with the rail-direction screw and can drive the rail plate to move.

Optionally, the adjustment mechanism includes a transmission assembly arranged laterally and connected to the bottom of the rail screw, the end of the transmission assembly is provided with an adjustment plate connected with the rail plate, and the transmission assembly passes through the drive assembly. The rotation of the rail-oriented screw drives the rail plate to move laterally.

Optionally, the bottom of the rail screw extends downward to the inside of the bracket body, and the adjustment mechanism further includes a reversing assembly, and the reversing assembly includes a first set at the bottom of the rail screw. a bevel gear and a horizontally arranged second bevel gear that meshes with the first bevel gear; the transmission assembly includes a screw that is horizontally arranged on the second bevel gear and a screw that matches the screw a support seat, which is slidably arranged on the bracket body and connected with the adjustment plate.

Optionally, the top of the support base is provided with a cover plate, and the bottom of the cover plate is supported on the top of the bracket body.

Optionally, the bottom of the cover plate is provided with a slider, and the top of the bracket body is provided with a chute matching the slider.

Optionally, one end of the bracket body is hollow and divided into a first cavity and a second cavity by a partition plate, and the first bevel gear and the second bevel gear are arranged on the In the first cavity, the screw rod passes through the partition plate and is connected with the support seat provided in the second cavity, and the bottom of the support seat extends downward from the bracket body and is connected with the track plate .

Optionally, a first bearing is provided between the screw and the separator.

Optionally, a second bearing is provided between the rail screw and the bracket body.

Optionally, both ends of the bracket body protrude from the track plate and are drive-connected with vertically arranged elevation screws.

Optionally, both ends of the bracket body are provided with support rods for limiting the position of the bracket body.

Compared with the prior art, the above-mentioned technical solutions provided in the embodiments of the present application have the following advantages:

In the present application, two track plate fine adjustment brackets are arranged on the track plate, and the rail direction adjustment of the track plate is realized through the cooperation of the track screw rod and the adjustment mechanism, which effectively improves the adjustment accuracy, increases the adjustment range, and avoids the occurrence of misalignment and rework. In addition, the rail screw is arranged vertically, which is convenient for the staff to adjust manually. It can also cooperate with the execution structure on the track plate fine adjustment machine to realize intelligent adjustment. This design method can not only reduce the construction intensity of workers, but also greatly improve the track plate. Fine-tune efficiency.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the front view of the present invention;

FIG. 3 is a schematic structural diagram of the adjusting mechanism of the present invention.

Reference number:

1. Bracket body; 2. Elevation screw; 3. Orbital screw; 4. First bevel gear; 41, Second bevel gear; 42, Screw; 43, Support seat; 431, Cover plate; 432, Adjustment Plate; 5. Lifting screw; 6. Partition; 61. First cavity; 62. Second cavity.

Detailed ways

In order to understand the above objects, features and advantages of the present invention more clearly, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is to be understood that the described embodiments are some, but not all, embodiments of the present invention. The specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art fall within the protection scope of the present invention.

1 and 2, the track plate fine adjustment bracket provided by the embodiment of the present application includes a bracket body 1 arranged on the track plate. Both ends of the bracket body 1 extend out of the track plate and are vertically arranged. The elevation screw 2 is drivingly connected, the bracket body 1 is vertically provided with a rail screw 3, and the bracket body 1 is provided with an adjustment mechanism that is drivingly connected to the rail screw 3 and can drive the rail plate to move. Both ends are provided with support rods for limiting the position of the bracket body 1. Specifically, the support rods are arranged obliquely, and one end of the support rods is connected to the end of the bracket body 1, and the other end is supported on the ground or other bearing surface. The adjustment of the track plate plays a supporting role and provides a reverse force. At the same time, the support rod is set inclined, which can decompose the force on the support rod into vertical and horizontal forces, which can effectively reduce the horizontal force. , to avoid the phenomenon of damage caused by excessive force at the installation point, and avoid affecting the normal construction.

In the present application, two track plate fine adjustment brackets are arranged on the track plate, the height adjustment of the track plate is realized by four elevation screws 2, and the orbit direction adjustment of the track plate is realized by two rail direction screws 3, which effectively improves the adjustment accuracy. At the same time, the adjustment range is increased to avoid the phenomenon of dislocation and rework, and the elevation screw 2 and the rail screw 3 are set vertically, which is convenient for the staff to adjust manually. It can also be matched with the execution structure on the track plate fine adjustment machine to achieve intelligent adjustment. The design method can not only reduce the construction intensity of workers, but also greatly improve the precision adjustment efficiency of the track slab.

The adjustment mechanism of the present application includes a transmission assembly arranged laterally and connected to the bottom of the rail screw 3. The transmission connection here means that the rotation of the rail screw can drive the transmission assembly to rotate or move in the horizontal direction. The end of the transmission assembly There is an adjusting plate 432 connected with the track plate at the part, and the transmission assembly drives the track plate to move laterally through the rotation of the rail screw 3 .

In some embodiments, as shown in FIG. 3 , the bottom of the rail screw 3 extends downward to the interior of the bracket body 1 , and the adjusting mechanism further includes a reversing assembly. Wherein, the reversing assembly includes a first bevel gear 4 arranged at the bottom of the rail screw 3 and a second bevel gear 41 arranged horizontally and meshing with the first bevel gear 4; the transmission assembly includes a horizontally arranged second bevel gear 41. The screw 42 on the gear 41 and the supporting seat 43 matched with the screw 42 are slidably arranged on the bracket body 1 and connected with the adjusting plate 432 .

This design method converts the rotational movement of the rail screw 3 in the vertical direction into the rotational movement of the screw 42 in the horizontal direction through the action relationship between the first bevel gear 4 and the second bevel gear 41. It is simple and ingenious in design, and the screw 42 is provided with a support seat 43 that matches the screw 42. The matching here means that the inner thread of the support seat 43 is provided. Through the cooperation between the inner thread and the screw 42, the The rotational motion of the screw rod 42 is converted into the linear motion of the support base 43 , and the adjusting plate 432 is arranged on the support base 43 to adjust the parameters of the track plate in the rail direction. The screw rod 42 described in this application can be expressed as a thread provided on the entire stud, or can be expressed as a threaded segment provided on the stud, and the threaded segment is matched with the support seat 43 .

In another embodiment, the bottom of the rail screw 3 can be set in the form of an external gear, in this case, the transmission assembly can be set as a rack, the rack is arranged in the horizontal direction and meshes with the external gear, and the adjusting plate 432 It is arranged at the end of the rack, and drives the adjusting plate 432 to move through the transmission of the rack and the external gear, thereby adjusting the orbital parameters of the track plate. At the same time, in order to avoid the phenomenon of idling of the external gear, a casing can be set at the connection between the rack and the external gear, and the inner wall of the casing can provide a reaction force for the rack, so that the rack and the external gear are tightly meshed together to avoid The problem that the adjustment accuracy of the track plate is reduced due to the idling of the external gear.

1 and 3 , the support base 43 of the present application is arranged between the elevation screw 2 and the rail screw 3 , and at the same time, in order to facilitate the relative sliding between the support base 43 and the bracket body 1 , the support base 43 A cover plate 431 (the cover plate can also be arranged on the top of the adjusting plate 432) is arranged at the top of the cradle, and the bottom of the cover plate 431 is supported on the top of the bracket body 1. Further optimally, in order to facilitate positioning and increase the fluency in the moving process, A slider can be provided at the bottom of the cover plate 431 , and a chute matching the slider can be arranged at a position corresponding to the top of the bracket body 1 . Play the role of positioning, avoid positioning deviation, and then increase the adjustment accuracy.

In some embodiments, the adjustment plate 432 and the track plate are connected by a hoisting screw 542, so as to establish a connection relationship between the adjustment plate 432 and the track plate. The support base 43 of the present application can not only drive the movement of the rail plate in the rail direction, but also can drive the movement of the rail plate in the vertical direction. Specifically, when the elevation parameter of the track plate needs to be adjusted, the elevation screw 2 is rotated. At this time, due to the drive connection between the elevation screw 2 and the end of the bracket body 1 (that is, the end of the bracket body 1 is provided with a The matching internal thread of the screw 2), the rotation of the elevation screw 2 drives the movement of the bracket body 1 in the vertical direction, and the bracket body 1 supports the cover plate 431 arranged on the top of the support base 43, so as to be compatible with the support The seats 43 are connected. When the support plate needs to be adjusted upward, the elevation screw 2 is rotated, and the bracket body 1 drives the cover plate 431 to move upward, and then drives the track plate to move upward through the support seat 43. When the support plate needs to be adjusted downward , rotate the elevation screw 2, and the bracket body 1 moves downward. At this time, the track plate moves downward under the action of its own gravity to complete the adjustment. When the bracket body 1 moves upward and downward, the elevation screw 2 moves downward. The direction of rotation is opposite.

As shown in FIG. 3 , one end of the bracket body 1 of the present application is hollow and divided into a first cavity 61 and a second cavity 62 , a first bevel gear 4 and a second bevel gear by a partition 6 41 is arranged in the first cavity 61, the screw 42 is connected to the support seat 43 arranged in the second cavity 62 through the partition plate 6, and the bottom of the support seat 43 extends downward from the bracket body 1 and is connected with the track plate . This design method can effectively save the occupied space, thereby reducing the volume of the track plate fine adjustment bracket.

Further optimally, in order to increase the smoothness in the rotation process, a first bearing is arranged between the screw 42 and the partition plate 6 , and a second bearing is arranged between the rail screw 3 and the bracket body 1 .

In the present application, by operating two elevation screws 2 and one orbital screw 3 arranged on the track plate fine adjustment bracket, it is possible to quickly and conveniently adjust the height and rail parameters of the track plate. Specifically, by setting The elevation adjustment of the track plate can be realized by the elevation screws 2 at both ends of the bracket body 1 , and the orbital adjustment of the track plate can be realized by the orbital screw 3 arranged on the side of one of the elevation screws 2 .

Since the present application changes the rail direction adjustment method of the rail plate from horizontal adjustment to longitudinal adjustment, and adjusts the parameters of the rail plate in the rail direction through the cooperation between the support base 43 and the screw 42, therefore, the rail direction adjustment can be effectively increased. The adjustment range, compared to the traditional lateral adjustment stroke, is insufficient. With this design method, the lateral adjustment range of the track plate fine adjustment bracket can reach ±45mm, which increases the adjustment range, even if the track plate is not placed in place during the rough laying process. , it can also be adjusted through the orbital screw 3 to avoid rework and increase work efficiency.

Since both the elevation screw 2 and the rail screw 3 are vertically arranged, it is convenient for the staff to operate and adjust the track plate, avoid the staff from bending over for a long time for construction, and ensure the health of the staff. At the same time, this design method can also cooperate with the three actuators arranged on the track fine-tuning machine for intelligent adjustment, increasing the diversity of use, and in this design method, the three actuators on the track fine-tuning machine can be vertically adjusted. The setting reduces the volume of the track fine-tuning machine, and at the same time, the vertical setting can effectively increase the adjustment accuracy compared with the horizontal setting.

The present application not only reduces the construction intensity of workers, but also greatly improves the efficiency of the fine adjustment of the track slab. It is concluded from practical data that using the track slab to adjust the bracket body 1, the slab adjustment speed of the traditional single working surface can be changed from 30 pieces per day. The left and right is increased to 45 pieces, which saves a lot of fine-tuning time and wins the construction period for the construction unit.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that it can still be The technical solutions described in the foregoing embodiments are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A track plate fine-adjusting bracket, characterized in that it comprises a bracket body arranged on the track plate, a rail screw is vertically arranged above the bracket body, and a The rail is connected to the screw drive and can drive the adjustment mechanism of the rail plate to move. 2 . The track plate fine-adjusting bracket according to claim 1 , wherein the adjusting mechanism comprises a transmission assembly arranged laterally and drivingly connected with the bottom of the rail screw, and the end of the transmission assembly is 2. 3 . An adjustment plate connected with the track plate is provided, and the transmission assembly drives the track plate to move laterally through the rotation of the track screw. 3 . The track plate fine adjustment bracket according to claim 2 , wherein the bottom of the track screw extends downward to the inside of the bracket body, and the adjustment mechanism further comprises a reversing assembly, so 3 . The reversing assembly includes a first bevel gear arranged at the bottom of the rail screw and a second bevel gear horizontally arranged in mesh with the first bevel gear; the transmission assembly includes a A screw on the second bevel gear and a support seat matched with the screw, the support seat is slidably arranged on the bracket body and connected with the adjustment plate. 4 . The track plate fine adjustment bracket according to claim 3 , wherein the top of the support base is provided with a cover plate, and the bottom of the cover plate is supported on the top of the bracket body. 5 . 5 . The track plate fine-adjusting bracket according to claim 4 , wherein a sliding block is provided at the bottom of the cover plate, and a chute matching the sliding block is provided at the top of the bracket body. 6 . . 6 . The track plate fine adjustment bracket according to claim 3 , wherein one end of the bracket body is hollow and divided into a first cavity and a second cavity by a partition, and the first cavity is divided into a second cavity. 7 . A bevel gear and the second bevel gear are arranged in the first cavity, the screw rod is connected to the support seat arranged in the second cavity through the partition plate, and the support seat The bottom of the bracket protrudes downward from the bracket body and is connected with the track plate. 7 . The track plate fine adjustment bracket according to claim 6 , wherein a first bearing is provided between the screw rod and the partition plate. 8 . 8 . The track plate fine adjustment bracket of claim 1 , wherein a second bearing is provided between the track screw and the bracket body. 9 . 9 . The track plate fine-adjusting bracket according to claim 1 , wherein two ends of the bracket body protrude from the track plate and are drive-connected with vertically arranged elevation screws. 10 . 10 . The track plate fine adjustment bracket according to claim 1 , wherein two ends of the bracket body are provided with support rods for restricting the position of the bracket body. 11 .

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