CN110862018A - A track-laying crane with dual-purpose walking function of track and road - Google Patents

Abstract

The invention discloses a track-laying crane with a track and road dual-purpose traveling function, which comprises a cross beam, a tire traveling mechanism arranged below the cross beam, portal frames arranged on the cross beam and vertically moved up and down through a lifting oil cylinder, a movable beam capable of horizontally moving between the portal frames, a lifting appliance arranged below the movable beam and vertically lifted up and down through a lifting mechanism, a tire steering mechanism for rotating the tire traveling mechanism, a track changing mechanism matched with the tire steering mechanism for adjusting span, and a track supporting leg capable of turning and a track wheel traveling mechanism arranged at the end part of the track supporting leg, wherein the tire traveling mechanism is arranged below the cross beam. When the track wheel travelling mechanism supports, the rail transfer mechanism is directly started to transfer rails, and when the tire travelling mechanism supports, the tire travelling mechanism is turned by 90 degrees through the tire turning mechanism and then the rail transfer mechanism is started to transfer rails, so that the rail transfer operation can be realized at any time.

Description

A track-laying crane with dual-purpose walking function of track and road

technical field

The invention relates to the technical field of railway construction equipment, in particular to a track-laying crane with a dual-purpose walking function for tracks and roads.

Background technique

When laying the track in the tunnel, due to space constraints, it is hoped that the vehicle has a small size, strong carrying capacity and high alignment accuracy. In the initial stage of construction, in order to lay the rails, the auxiliary rails are often erected for the rail-laying cranes to travel. The laying of the auxiliary rails not only increases the construction process, but also has a large wheel pressure, which has a destructive effect on the tunnel level and slows the walking speed. Pure tire-type track-laying cranes have high requirements on the walking ground, so a track-laying crane that can run on both rails and tires is required to improve work efficiency.

The authorized invention patent with the application number of 201610642386.5 discloses a rail-travel and wheel-travel combined tunnel track-laying crane and a construction method, including: a rail-travel wheel set (1) and a wheel-travel wheel set (2), wherein: the rail The top of the traveling wheel group (1) is movably provided with a connecting beam (5), and both ends of the connecting beam (5) are provided with a wheel traveling wheel group (2) with adjustable supporting angle; The rail wheel set supports the crane, then adjust the height of the wheel support legs, and adjust the span of the whole machine through the connecting beam; drive the whole machine into the tunnel section, adjust the supporting angle of the wheel wheel set, so that the tire is positively pressed on the segment, so that the The wheel group is supported by force; the height of the rail support leg is adjusted to separate the rail wheel group from the track; the wheel group drives the crane to run in the tunnel segment.

The disadvantages are as follows: (1) The wheel group can only adjust the support angle, but cannot be turned horizontally. Therefore, when adjusting the span of the whole machine, the whole machine can only be supported by the rail wheel group; (2) During the construction of the rail-laying crane , it is necessary to pass under the rail-laying crane, and the rail wheel set in this invention cannot give up the passing space.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a track-laying crane with a dual-purpose running function for rails and roads, so as to solve the above-mentioned problems. The present invention adopts following technical scheme:

A rail-laying crane with dual-purpose walking functions for rails and roads includes a beam, a tire traveling mechanism installed under the beam, a gantry mounted on the beam and vertically moving up and down through a lifting oil cylinder, and a mobile that can move horizontally between the gantry. The beam, and the spreader installed under the moving beam to move vertically up and down through the hoisting mechanism, also include a tire steering mechanism for rotating the tire running mechanism and a rail change mechanism for adjusting the span in cooperation with the tire steering mechanism, and the moving beam is installed on the There are reversible track legs and a track wheel running mechanism installed at the end of the track legs.

Further, the track support leg includes a fixed support leg and a track support leg oil cylinder, one end of the track support leg oil cylinder is hinged on the fixed support leg, the other end is hingedly connected to the moving beam, and a movable beam is slidably connected below the fixed support leg. The inner cavity of the outrigger, the fixed outrigger and the movable outrigger is provided with a telescopic oil cylinder, and the extension and retraction operation of the movable outrigger is realized through the telescopic oil cylinder, and the bottom of the movable outrigger is fixedly connected with a rail wheel walking mechanism.

Further, the track wheel traveling mechanism includes a track wheel support fixedly connected to the bottom of the movable leg, a track wheel rotatably connected with the track wheel support, and a track wheel motor for driving the track wheel to rotate.

Further, there are three moving beams, track legs are installed on the moving beams on both sides, and a hanger is suspended under the middle moving beam.

Further, the tire steering mechanism includes a hydraulic steering device, a locking pin frame and a limit stop installed at the bottom of the beam, and also includes a flange and a rib that are fixedly connected to the top of the tire running mechanism. A locking pin flange is also fixedly connected to the side wall of the beam, and a locking pin used in cooperation with the locking pin frame and the flange is inserted into the locking pin flange.

Further, the rail-changing mechanism includes a rail-changing oil cylinder and a fixed beam fixedly connected to the gantry on both sides. Hinged to the moving beam.

Further, the traveling mechanism includes a wheel frame, a tire rotatably connected to the wheel frame through the wheel shaft, and a tire motor fixedly mounted on the wheel frame, and the output shaft of the tire motor is connected to the wheel shaft through a chain transmission device.

Further, the hoisting mechanism is two electric hoists, respectively installed on the left beam and the right beam, the end of the wire rope of the electric hoist is connected with the spreader, and the spreader can move vertically up and down through the electric hoist.

The beneficial effects of the present invention are as follows:

1. In the present invention, when the track wheel running mechanism is supported, the track change mechanism is directly activated to change the track. When the tire running mechanism is supported, the tire steering mechanism is used to turn the tire travel mechanism to 90° and then the track change mechanism is activated to change the track. Change tracks at any time.

2. The track support leg of the present invention is turned upward through the track support leg oil cylinder to free up the passing space below, the structure is simple, the operation is fast, and the construction efficiency can be greatly improved.

3. The steering mechanism of the present invention is steered by the hydraulic steering device. When walking, the lock pin is manually inserted into the lock pin frame and the flange to prevent the steering of the tire traveling mechanism. When turning, the hydraulic steering device drives the tire traveling mechanism. The limit stop is used to limit the position, and the structure is simple and the operation is stable.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram when the rail support leg of the present invention is turned upside down and stowed;

Fig. 2 is the side view of Fig. 1;

Fig. 3 is the three-dimensional structure schematic diagram when the track outrigger of the present invention is supported;

Fig. 4 is the front view of Fig. 3;

Fig. 5 is the structural representation of rail outrigger and rail wheel traveling mechanism in the present invention;

Fig. 6 is the side view of Fig. 5;

Fig. 7 is the structural representation of tire running mechanism in the present invention;

Fig. 8 is the structural representation after the tire running mechanism and the main beam are connected in the present invention;

FIG. 9 is an enlarged schematic view of the structure of the tire steering mechanism when the tire steering mechanism is turned to 90° in the invention.

As shown in the picture: 1-Front movable beam, 2-Tire running mechanism, 2.1-Wheel frame, 2.2-Axle, 2.3-Axle sprocket, 2.4-Rim, 2.5-Tire, 2.6-Motor sprocket, 2.7- Motor, 2.8-sprocket, 3-track wheel travel mechanism, 4-left side beam, 5-track outrigger, 5.1-track wheel, 5.2-track wheel support, 5.3-movable outrigger, 5.4-fixed outrigger, 5.5-Telescopic cylinder, 5.6-Rail wheel motor, 6-Rail change cylinder, 7-Fixed beam, 8-Gantry, 9-Moving beam, 10-Spreader, 11-Tire steering mechanism, 11.1-Rim, 11.2- Flange, 11.3-limit stop, 11.4-lock pin frame, 11.5-lock pin, 11.6-lock pin flange, 11.7-hydraulic steering device, 12-track outrigger cylinder, 13-right beam, 14-electrical Control system, 15-hydraulic system, 16-seat, 17-rear fixed beam, 18-lifting cylinder, 19-electric hoist, 20-cable reel, 21-track outrigger cylinder.

Detailed ways

As shown in Figures 1-4, a track-laying crane with dual-purpose walking functions for rails and roads includes a beam, a tire traveling mechanism 2 installed under the beam, and a gantry 8 installed on the beam to vertically move up and down through a lifting cylinder 18. , a movable beam 9 that can move horizontally between the gantry 8, and a spreader 10 installed under the movable beam 9 to vertically move up and down through a lifting mechanism, the track-laying crane also includes a tire steering mechanism 11 and a tire steering mechanism 2 that rotates A rail change mechanism for adjusting the span is used in conjunction with the tire steering mechanism 11 . The moving beam 9 is provided with a reversible rail leg 5 and a rail wheel running mechanism 3 installed at the end of the rail leg 5 . There are three moving beams 9 , track legs 5 are installed on the moving beams on both sides, and a hanger 10 is suspended below the middle moving beam 9 .

The rail-changing mechanism includes a rail-changing oil cylinder 6 and a fixed beam 7 fixedly connected to the gantry on both sides. Both ends of the moving beam 9 are slidably connected to the fixed beams 7 on both sides. One end of the rail-changing oil cylinder 6 is hinged to the fixed beam 7, and the other One end is hinged to the moving beam 9 .

The hoisting mechanism is two electric hoists 19, which are respectively installed on the left beam 4 and the right beam 13. The ends of the wire ropes of the electric hoists 19 are connected to the spreader 10.

The front movable beam 1 is installed on the front end of the cross beam, and the rear fixed beam 17 is installed at the rear end.

As shown in Figures 5-6, the track support leg 5 includes a fixed support leg 5.4 and a track support leg cylinder 21. One end of the track support leg cylinder 21 is hinged to the fixed support leg 5.4, and the other end is hinged to the moving beam 9. The fixed support A movable outrigger 5.3 is slidably connected below the leg 5.4. A telescopic oil cylinder 5.5 is arranged in the inner cavity of the fixed outrigger 5.4 and the movable outrigger 5.3. A track wheel traveling mechanism 3 is fixedly connected.

The track wheel running mechanism 3 includes a track wheel support 5.2 fixedly connected to the bottom of the movable leg 5.3, a track wheel 5.1 rotatably connected with the track wheel support 5.2, and a track wheel motor 5.6 for driving the track wheel to rotate.

As shown in Figures 7-9, the tire steering mechanism 11 includes a hydraulic steering device 11.7, a locking pin frame 11.4 and a limit stop 11.3 installed at the bottom of the beam, and also includes a flange 11.2 and a stopper fixedly connected to the top of the tire running mechanism 2 Side 11.1, locking pin frame 11.4 and flange 11.2 are used together, limit stop 11.3 is used together with retaining edge 11.1; locking pin flange 11.6 is also fixedly connected to the side wall of the beam, and locking pin flange 11.6 is inserted with a locking pin flange 11.6. The locking pin 11.5 used in conjunction with the locking pin frame 11.4 and the flange 11.2. The hydraulic steering device 11.7 is installed between the beam and the traveling mechanism 2. Below the beam, a locking pin frame 11.4 and a limit stop 11.3 are installed at the front and rear respectively. The flange 11.2 and the limit stop block 11.3 cooperate with the stop edge 11.1 of the steering limit.

The tire running mechanism includes a wheel frame 2.1, a rim 2.4, a tire 2.5, a tire motor 2.7, a sprocket 2.8, a motor sprocket 2.6, an axle sprocket 2.3 and an axle 2.2. As shown in Figure 7. The tire motor 2.7 is installed on one end of the wheel frame 2.1, the sprocket 2.8 is respectively connected with the motor sprocket 2.6 and the axle sprocket 2.3, and the axle 2.2 is connected with the axle sprocket 2.6 and the rim 2.4. After the tire motor 2.7 is powered, the sprocket 2.8 is driven by the motor sprocket 2.6, the sprocket 2.8 drives the axle sprocket 2.6, and the axle sprocket 2.6 drives the rim 2.4 to realize walking.

The working process of the present invention is as follows:

When walking in the state shown in Figure 1, insert the locking pin 11.5 on the locking pin flange 11.6 into the locking pin frame 11.4 and the flange 11.2, at this time to prevent the steering movement during walking. As shown in Figure 9, when the rail needs to be changed, first pull out the locking pin 11.5 from the locking pin frame 11.4 and the flange 11.2, the hydraulic steering device 11.7 drives the tire running mechanism 2 to turn 90°, and the side 11.1 rotates to the limit stopper After 11.3, limit the position.

When the rail is running, the rail outrigger cylinder 21 drives the fixed outrigger 5.4 to turn down, and when it reaches the vertical state, the movable outrigger 5.3 is driven out by the telescopic cylinder 5.5 until the rail wheel 5.1 contacts the running rail and supports the whole rail. Make sure that the tire running gear 2 is completely off the ground. At this time, the track wheel motor 5.6 in the track wheel traveling mechanism 3 is activated, and the whole vehicle can be driven to travel.

When the ballast track is laid, the track can be used for smooth and high-speed movement, and the tire can be used for displacement at the laying point. Specifically, when the rail outrigger cylinder 12 drives the rail outrigger 5 to turn over, and when the rail outrigger 5 falls to the rail, if the height is not enough, the movable outrigger 5.3 in the rail outrigger 5 can be extended through the telescopic oil cylinder 5.5 . If the centering is not possible, after the tire steering mechanism 11 drives the tire running mechanism 2 to turn 90°, the centering is realized by driving the rail changing cylinder 6 . After the rail outrigger 5 is supported to the rail, continue to extend the movable outrigger 5.3, and the whole machine is lifted off the ground. When the track wheel running mechanism 3 leaves the track, it can walk on the ground through the tires by changing the track on one side, and all execution actions do not require the assistance of external equipment.

The electric control system 14 and the hydraulic system 15 are used to start and stop the motor and hydraulic equipment of the present invention, and the control methods of the electric control system 14 and the hydraulic system 15 are not within the protection scope of the present invention.

The above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that the present invention can still be modified or equivalently replaced without departing from the Any modification or partial replacement of the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims (8)

1. The track laying crane with the track and road dual-purpose walking function comprises a cross beam, a tire walking mechanism arranged below the cross beam, portal frames which are vertically moved up and down and installed on the cross beam through a lifting oil cylinder, a movable beam which can horizontally move between the portal frames, and a lifting appliance which is vertically moved up and down and installed below the movable beam through a lifting mechanism.

2. The track-laying crane with the track and road dual-purpose walking function as claimed in claim 1, wherein the track supporting legs comprise fixed supporting legs and track supporting leg oil cylinders, one ends of the track supporting leg oil cylinders are hinged to the fixed supporting legs, the other ends of the track supporting leg oil cylinders are hinged to the moving beams, movable supporting legs are slidably connected below the fixed supporting legs, telescopic oil cylinders are arranged in inner cavities of the fixed supporting legs and the movable supporting legs, extending and retracting operations of the movable supporting legs are achieved through the telescopic oil cylinders, and track wheel walking mechanisms are fixedly connected to the bottoms of the movable supporting legs.

3. The track-laying crane with the track and road dual-purpose traveling function according to any one of claims 1 or 2, wherein the track wheel traveling mechanism comprises a track wheel support fixedly connected to the bottom of the movable leg, a track wheel rotatably connected to the track wheel support, and a track wheel motor for driving the track wheel to rotate.

4. The track-laying crane with the function of both track and road walking as claimed in claim 3, wherein the number of the moving beams is three, track legs are installed on the moving beams at two sides, and a lifting appliance is hung below the middle moving beam.

5. The track-laying crane with the track and road dual-purpose traveling function is characterized in that the tire steering mechanism comprises a hydraulic steering device, a lock pin frame and a limit stop which are arranged at the bottom of a cross beam, and further comprises a flange and a flange which are fixedly connected to the top of the tire steering mechanism, wherein the lock pin frame and the flange are matched for use, and the limit stop and the flange are matched for use; the side wall of the cross beam is also fixedly connected with a lock pin flange, and a lock pin matched with the lock pin frame and the flange is inserted into the lock pin flange.

6. The track-laying crane with the track and road dual-purpose traveling function according to claim 1, wherein the track-changing mechanism comprises a track-changing oil cylinder and a fixed beam fixedly connected to the two side door frames, two ends of the movable beam are slidably connected with the two side fixed beams, one end of the track-changing oil cylinder is hinged to the fixed beam, and the other end of the track-changing oil cylinder is hinged to the movable beam.

7. The track-laying crane with the track and road dual-purpose traveling function is characterized in that the traveling mechanism comprises a wheel frame, a tire rotationally connected to the wheel frame through a wheel shaft and a tire motor fixedly mounted on the wheel frame, and an output shaft of the tire motor is connected with the wheel shaft through a chain transmission device.

8. The track-laying crane with the dual-purpose traveling function of the track and the road as claimed in claim 1, wherein the hoisting mechanism is two electric hoists respectively installed on the left side cross beam and the right side cross beam, the end portions of the steel wire ropes of the electric hoists are connected with a lifting appliance, and the lifting appliance is vertically moved up and down through the electric hoists.

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