Transfer device for walking track of lining trolley of open cut tunnel

Abstract

The utility model discloses an open cut tunnel lining trolley walking track transfer device which comprises a plurality of lifting positioning devices, a plurality of supporting steel structural parts, two sets of track transfer devices and a plurality of hydraulic cylinders, and the hydraulic cylinders are installed in a space reserved in a large cross beam at the bottom of a trolley at equal intervals. The rail transfer devices are assembled on the hydraulic cylinders in front of and behind the large cross beam, and the lifting and positioning devices are assembled with the other hydraulic cylinders through caliper body mounting plates; the rail transfer device transfers a steel rail through a friction wheel; and the steel structural member for supporting is used for overhead arrangement of the trolley. In the prior art, engineering machinery is used for pushing the trolley to work, a trolley body and a steel rail are likely to be damaged, however, the automation degree of the trolley can be remarkably improved, the working efficiency is further improved, manpower input can be effectively reduced, direct contact between workers and the engineering machinery is reduced, and the risk of mechanical injury is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of open hole lining trolleys, in particular to a walking track transmission device for an open hole lining trolley. Background Art

[0002] The large-scale variable-section inner and outer formwork lining trolley is a combined inner and outer formwork trolley suitable for large-span, variable-section projects such as the Guangzhou-Zhanjiang Railway. The outer formwork trolley utilizes Bailey plates as its primary frame, a domestic first. The formwork of the trolley is secured by hinges and lead screws, and is equipped with hydraulic cylinders for rapid demoulding and removal. The trolley can quickly adapt to formwork changes between different sections. By adjusting the lead screws, the connectors between the formwork and the gantry, the trolley can adjust and change formwork dimensions between different sections with minimal assembly and disassembly steps. To accommodate multi-line construction, the trolley's running mechanism is designed with a flange mechanical connection, secured to the trolley base with threaded fasteners. When one line is cast and needs to be moved laterally to the next line, the trolley is safely lifted with a jack, the running gear is disassembled, adjusted, and reassembled to complete the steering. Simultaneously, the rails are adjusted to allow the trolley to smoothly move to its working position parallel to the line.

[0003] The above-mentioned trolley is suitable for tunnel construction with multiple lines running in parallel and large changes in tunnel cross-section. However, when the trolley moves in a straight line, manual cooperation with loaders and other equipment is required to move the guide rails. The positioning effect is poor, the installation efficiency is low, and the distance between workers and equipment is too close, which poses a major safety hazard. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of the present utility model is to provide a track transfer device for an open hole lining trolley.

[0005] In order to solve the above problems, the present invention adopts the following technical solutions:

[0006] A track transfer device for an open-hole lining trolley comprises a plurality of lifting and positioning devices, a plurality of supporting steel structures, two sets of track transfer devices and a plurality of hydraulic cylinders, wherein the hydraulic cylinders are equidistantly installed in the spaces reserved on the large crossbeam at the bottom of the trolley; the track transfer device is assembled on two hydraulic cylinders in front and behind the large crossbeam, and the lifting and positioning device is assembled with the remaining hydraulic cylinders through a caliper body mounting plate; the track transfer device transfers the rails through friction wheels; and the supporting steel structures overhead set the trolley.

[0007] Preferably, the electromagnetic caliper in the lifting and positioning device is composed of a caliper front shell, an electromagnet, a caliper rear shell, a caliper body mounting plate, a caliper body return spring and a caliper body.

[0008] Preferably, each group of the track transfer devices is composed of multiple groups of friction gear trains, and each group of the friction gear trains is a mirror structure, including a pair of friction gear train axle boxes equipped with friction gear train axle box guide wheels, a pair of friction gear train main shafts and a pair of friction wheels.

[0009] Preferably, each set of the friction gear trains movably connects the two friction gear train main shafts through a gear rack, and a through hole is opened on the friction gear train axle box for the rack to penetrate.

[0010] Preferably, each of the friction gear train main shafts is configured and connected with a friction wheel.

[0011] Preferably, the friction gear trains are all movably mounted on the slide rail plate for moving the axle box.

[0012] Preferably, fixed ribs and long friction strips are installed on both sides of the rail to cooperate with the transfer work of the track transfer device or the clamping action of the lifting and positioning device.

[0013] Preferably, the caliper body is covered with a rubber film.

[0014] Preferably, the track transfer device is powered by a small rotor motor, and the chassis of the small rotor motor is welded next to the track transfer device.

[0015] Preferably, the chassis is provided with assembly holes for fixing with the hydraulic cylinder via a flange.

[0016] Beneficial effects of the utility model:

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] 1. This utility model provides an electromagnetic clamp that can clamp the rail and then lift or lower it, and a friction transmission device that can transmit forward force to replace manual laying. Compared with the traditional method of manual labor combined with large-scale construction machinery, this utility model can effectively reduce manpower input, reduce direct contact between workers and construction machinery, and reduce the risk of mechanical injury;

[0019] 2. In the past, the use of engineering machinery to push the work under the trolley was likely to cause damage to the trolley body and rails. However, the use of the utility model can significantly improve the automation level of the trolley, thereby improving work efficiency;

[0020] 3. The electromagnetic caliper of this utility model can provide a stable clamping force to ensure that the track is lifted smoothly along the set track, while ensuring the accuracy of track positioning;

[0021] 4. The friction wheel assembly can push the rail forward by friction, but it is necessary to install reinforcing ribs and long friction belts on both sides of the rail to ensure that the friction wheel does not cause friction loss to the rail body. The use of a friction transmission device can avoid damage to the rail when using construction machinery such as loaders to push the rail, thereby improving the accuracy of the rail movement and the overall efficiency of the trolley movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the assembly and use of the utility model;

[0023] Figure 2 This is an assembly diagram of the lifting and positioning device of the utility model;

[0024] Figure 3 This is an exploded view of the lifting and positioning device of the utility model;

[0025] Figure 4 This is an assembly drawing of the rail transfer device with a welded chassis according to the utility model;

[0026] Figure 5 This is a schematic diagram of the partial assembly structure of the track transfer device of the utility model;

[0027] Figure 6 This is an exploded view of the track transfer device of the present invention. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figures 1 to 6 The present invention provides a technical solution: a track transfer device for an open-hole lining trolley, the purpose of which is to realize the integration and automation of guide rail lifting and positioning, and to reduce manual operation as much as possible. The present invention includes a plurality of lifting and positioning devices 1, a plurality of supporting steel structures 2, two sets of track transfer devices 3 and a plurality of hydraulic cylinders 4, wherein the plurality of hydraulic cylinders 4 are equidistantly installed in the space reserved on the large crossbeam 5 at the bottom of the trolley 7. On this basis, the first hydraulic cylinder 4 and the last hydraulic cylinder 4 need to be positioned and installed at the edge of the large crossbeam 5, the purpose of which is to assemble and use the two sets of track transfer devices 3 respectively, and the lifting and positioning device 1 is assembled with the remaining hydraulic cylinders 4 through the caliper body mounting plate 15.

[0030] Among them, the lifting and positioning device 1 clamps and lifts or lowers the rail 6, while the track transfer device 3 transfers the rail 6, and the supporting steel structure 2 sets the trolley 7 overhead. The purpose is that when the rail 6 needs to be clamped, transferred, or moved, the supporting steel structure 2 can provide a working space for the lifting and positioning device 1 and the track transfer device 3 by raising the trolley 7 in situ, and the trolley 7 leaves the rail 6. What can be further explained about the rail 6 is that before it is clamped by the lifting and positioning device 1 or transferred by the track transfer device 3, it is necessary to install solid ribs and long friction belts on both sides in advance to cooperate with the transfer work or clamping action to ensure that the friction wheel does not cause friction loss to the rail body. Similarly, the caliper body 14 is covered with a rubber film, which is also used to protect the rail 6 when clamping it to prevent scratches or other losses.

[0031] It can be further explained that the lifting and positioning device 1 includes an electromagnetic caliper, which is composed of a caliper front shell 10, an electromagnet 11, a caliper rear shell 12, a caliper body return spring 13 and a caliper body 14.

[0032] Furthermore, each set of the track transfer device 3 is composed of multiple sets of friction gear trains 30, each of which is movably mounted on axle box sliding rail plate 36. Each set of friction gear trains 30 is a mirror image structure, comprising a pair of friction gear train axle boxes 32 equipped with friction gear train axle box guide wheels 31, a pair of friction gear train main shafts 33, and a pair of friction wheels 34. Each set of friction gear trains 30 movably connects the two friction gear train main shafts 33 via a gear rack 35. The friction gear train axle boxes 32 are provided with through holes 320 for the racks to pass through. Each friction gear train main shaft 33 is connected to a friction wheel 34. What can be further explained about the slide rail plate 36 is that a slide groove is provided on its top for positioning the guide wheel 31 of the friction gear train axle box, and a through hole is provided for the friction gear train main shaft 33 with the friction wheel 34 to penetrate and mesh with the gear rack 35 in the friction gear train axle box 32.

[0033] The lifting and positioning device 1 described in the present invention works by relying on the electromagnet 11 that is powered on and off to achieve the closing or opening of the caliper body 14, wherein the opening jaw is also provided with a body reset spring 13 to ensure that it is reset into place, thereby ensuring subsequent work; the work of the track transfer device 3 is powered by a small rotor motor, and the chassis 37 of the small rotor motor is welded next to the track transfer device 3. It can be noted that the track transfer device 3 is connected to the hydraulic cylinder 4 through the chassis 37 of the small rotor motor. Specifically, the chassis 37 is provided with an assembly hole to be fixed to the hydraulic cylinder 4 through a flange.

[0034] The caliper body 14 of the electromagnetic caliper of the present invention is normally open. After it falls into the specified position, it can clamp the rail 6. It will clamp the rail 6 when the electromagnet 11 is energized, and will be pulled back to its original position by the caliper body reset spring 13 after power is off; the rail transfer device 3 focuses on transmitting the guide rail lifted by the electromagnetic caliper forward through the friction force of the friction wheel 34, thereby realizing the self-propelled travel of the electrically controlled trolley, and the friction wheel system 30 can adjust the wheelbase between each pair of friction wheels 34 to adapt to guide rails 6 of different widths.

[0035] When the trolley 7 needs to move in a long-distance straight line, the hydraulic cylinder 4 equipped with the lifting and positioning device 1 needs to adjust the electromagnetic caliper therein to the appropriate position of the rail 6, and the supporting steel structure 2 needs to be used to firmly install the trolley 7 in the air; the length of the rail 6 needs to be longer than the entire length of the trolley 7, and then the fixed ribs and long friction belts are installed on both sides of the rail 6; then the lifting and positioning device 1 is lowered by the hydraulic cylinder 4 to allow the electromagnetic caliper to be in the horizontal direction of the reserved clamping position of the rail 6, and then the electromagnet 11 is energized to clamp the caliper body 14 inward to achieve the desired effect. The rail 6 is clamped; at this time, attention should be paid to the height of the track transfer device 3, which needs to be at the same height as the lifting and positioning device 1 that clamps the rail 6, so as to ensure the subsequent transfer action. After the lifting and positioning device 1 clamps and lifts the rail 6, adjust the friction wheel 34 to clamp the friction belt of the rail 6, and finally start the small rotor motor to transfer the rail 6 forward by moving the track transfer device 3. When the rail 6 reaches the specified position, first lower the rail 6, then lower the wheel system of the trolley 7 and fall it onto the rail 6, and finally remove the supporting steel structure 2, and the trolley can move forward.

[0036] The utility model provides an electromagnetic clamp that can lift or lower the rail after clamping it, and a friction transmission device that can transmit forward to replace manual laying. Compared with the traditional method of manual labor combined with large-scale construction machinery, the utility model can effectively reduce manpower input, reduce direct contact between workers and construction machinery, and reduce the risk of mechanical injury.

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

Claims

1. A traveling track transfer device for an open-hole lining trolley, characterized in that: The invention comprises a plurality of lifting and positioning devices (1), a plurality of supporting steel structures (2), two sets of track transfer devices (3) and a plurality of hydraulic cylinders (4), wherein the hydraulic cylinders (4) are equidistantly installed in the space reserved on the large crossbeam (5) at the bottom of the trolley (7); the track transfer devices (3) are assembled on the two hydraulic cylinders (4) in front and behind the large crossbeam (5); the lifting and positioning devices (1) are assembled with the remaining hydraulic cylinders (4) through the caliper body mounting plate (15); the track transfer device (3) transfers the steel rail (6) through the friction wheel (34); and the supporting steel structure (2) is used to overhead the trolley (7).

2. The open hole lining trolley travel track transfer device according to claim 1, characterized in that: The lifting and positioning device (1) comprises an electromagnetic caliper, which is composed of a caliper front shell (10), an electromagnet (11), a caliper rear shell (12), a caliper body return spring (13) and a caliper body (14).

3. The open hole lining trolley travel track transfer device according to claim 1, characterized in that: Each set of the track transmission device (3) is composed of multiple sets of friction gear trains (30), and each set of the friction gear trains (30) is a mirror structure, including a pair of friction gear train axle boxes (32) equipped with friction gear train axle box guide wheels (31), a pair of friction gear train main shafts (33) and a pair of friction wheels (34).

4. The open hole lining trolley travel track transfer device according to claim 3, characterized in that: Each set of the friction gear train (30) is movably connected to two friction gear train main shafts (33) via a gear rack (35), and a through hole (320) is provided on the friction gear train axle box (32) for the rack to penetrate.

5. The open hole lining trolley travel track transfer device according to claim 4, characterized in that: Each of the friction gear train main shafts (33) is configured and connected with a friction wheel (34).

6. The open hole lining trolley travel track transfer device according to claim 3, characterized in that: The friction gear trains (30) are all movably assembled on the slide rail plate (36) for moving the axle box.

7. The open hole lining trolley travel track transfer device according to claim 1, characterized in that: Both sides of the steel rail (6) need to be equipped with fixed ribs and long friction belts to cooperate with the transfer work of the track transfer device (3) or the clamping action of the lifting and positioning device (1).

8. The open hole lining trolley travel track transfer device according to claim 2, characterized in that: The caliper body (14) is covered with a rubber film.

9. The open hole lining trolley travel track transfer device according to claim 1, characterized in that: The track transfer device (3) is powered by a small rotor motor, and a chassis (37) of the small rotor motor is welded next to the track transfer device (3).

10. The open hole lining trolley travel track transfer device according to claim 9, characterized in that: The chassis (37) is provided with an assembly hole for fixing the chassis (37) to the hydraulic cylinder (4) via a flange.

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