CN207632344U - Rock tunnel(ling) machine segment crane walking mechanism - Google Patents

Abstract

A tunnel boring machine segment crane traveling mechanism, including a guide wheel, a transmission, a traveling motor, a guide rail, a traveling wheel, a friction wheel and a friction increasing device, two parallel I-shaped guide rails are connected to each other through a beam, and are rotatably installed on both sides The running wheels on the inner side of the vertical board are set in the grooves on both sides of the guide rail, and the friction wheels installed between the vertical boards on both sides are rotated against the bottom surface of the track, and the walking motor on the vertical board is connected to the friction wheel through a transmission. The guide rails are connected to each other by a hinge mechanism. The utility model has the advantages that: the guide rail components are hingedly connected, which can be flexibly bent when the tunnel boring machine is turning, reducing the stress and avoiding damage; the friction wheel uses a steel knurled friction wheel, which not only increases the life of the friction wheel, but also can It provides sufficient frictional force for the segment crane when transporting the segment on the guide rail assembly inclined at a certain angle, prevents slipping, improves efficiency and reduces cost; it is suitable for small spaces and has a wide range of applications.

Description

Tunnel boring machine segment crane traveling mechanism

technical field

The utility model relates to a traveling mechanism of a tunnel boring machine segment crane.

Background technique

The segment crane mechanism for tunnel boring machine is a segment transportation tool. It is an important link in the segment transportation process to transport the segments from the train formation to the feeder or the grabbing area of the segment assembly machine. Its working condition directly affects the efficiency of segment transportation and even the efficiency of segment assembly. At present, the traveling forms of the segment crane mechanism mainly include: sprocket chain traveling, rack and pinion traveling and friction wheel friction guide rail assembly traveling. There are the following problems in the segment crane mechanism of the traditional friction wheel friction guide rail assembly walking form:

1) The guide rail assembly of the segment crane mechanism is long and rigidly connected. It cannot be flexibly bent when the roadheader is turning and excavating. Stress is generated under the action of external force, which may easily lead to deformation or even destruction of the guide rail assembly.

2) The friction wheel of the segment crane mechanism is a composite friction wheel composed of core steel and outer PU material. The PU material on the outer edge of the composite friction wheel is easy to wear and has a short life.

3) The friction between the composite friction wheel and the guide rail assembly is small, especially when there is grease, it is easy to slide, so the segment crane can only transport the segment on the horizontal or near-horizontal guide rail assembly, and cannot tilt at a certain angle The segment is transported on the guide rail assembly, and it cannot reach the grabbing area of the segment assembly machine at one time. Therefore, it is necessary to set up a segment transfer mechanism such as a tablet feeder, which requires a large space and a limited range of use.

Contents of the invention

The purpose of this utility model is to provide a tunnel boring machine segment crane traveling mechanism to solve the above three problems in the prior art.

The technical scheme of the utility model is: a tunnel boring machine segment crane walking mechanism, including guide wheels, transmissions, travel motors, guide rails, travel wheels, friction wheels and friction increasing devices, two parallel I-shaped guide rails pass through the beam Connected to each other, the running wheels installed on the inside of the vertical plates on both sides are set in the grooves on both sides of the guide rail, and the friction wheels installed between the vertical plates on both sides are offset against the bottom surface of the track, and the walking motor on the vertical plate is installed The transmission is connected with the friction wheel through the transmission, and the feature is that the guide rail is composed of a plurality of guide rail components butt joints, and the guide rail components include: the front guide rail, the rear guide rail, the connecting guide rail, the connecting plate, the front guide rail concave bottom plate, the guide rail convex shaped bottom plate and the concave bottom plate of the rear section guide rail, the cross-sectional shape of the front section guide rail, the rear section guide rail and the connecting guide rail are all T-shaped, there is a gap between the three, and they are connected sequentially through the connecting plates on both sides, and one end of the connecting plate is welded On the side of the butt end of the front guide rail and the rear guide rail, the other end of the connecting plate is provided with a transverse long hole, and is connected with the connecting guide rail through bolts; the front guide rail, the rear guide rail and the connecting guide rail are respectively welded with a concave shape of the front guide rail. The bottom plate, the convex bottom plate of the guide rail and the concave bottom plate of the rear section guide rail are provided with grooves on the butt joint surface of the concave bottom plate of the front section guide rail and the concave bottom plate of the rear section guide rail, and the two ends of the convex bottom plate of the guide rail are provided with the The protrusion that the concave base plate and the groove of the rear section guide rail concave base plate cooperate has a gap between the front section guide rail concave base plate, the guide rail convex base plate and the rear section guide rail concave base plate.

The friction wheel is made of steel material and has knurling on its outer peripheral surface.

Guide wheels are arranged on the outside of the vertical plate of the guide rail.

The shaft of the friction wheel is equipped with an increased friction device, the middle part of the increased friction device is rotated and supported between the vertical plates on both sides as a fulcrum, the shaft of the friction wheel is installed in front of the fulcrum of the increased friction device, and the front end of the increased friction device Equipped with pressurization mechanism.

Compared with the segment crane mechanism in the form of the traditional friction wheel friction guide rail assembly, the utility model has the advantages that the guide rail assembly is hingedly connected, and can be flexibly bent when the tunnel boring machine turns, reducing stress and avoiding damage; the friction wheel The use of steel knurled friction wheels not only increases the life of the friction wheels, but also provides sufficient friction for the segment crane when transporting segments on the guide rail assembly at an inclined angle, preventing slipping, improving efficiency and reducing costs; suitable for Small space, wide range of use.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present utility model;

Fig. 2 is the side structural representation of the utility model;

Fig. 3 is the left view of Fig. 2;

Fig. 4 is A-A sectional view of Fig. 3;

Fig. 5 is the top view of Fig. 2;

Fig. 6 is a schematic diagram of the appearance of the friction wheel of the present utility model;

Fig. 7 is the enlarged view of II place in Fig. 2;

Fig. 8 is an enlarged view of the connection structure between the lower bottom plates in Fig. 7 .

Explanation of reference signs: 1 guide wheel, 2 transmission, 3 travel motor, 4 guide rail, 5 travel wheel, 6 friction wheel, 7 increase friction device, 8 beam, 9 vertical plate, 10, pressurizing mechanism, 41 front section guide rail, 42 Rear section guide rail, 43 connecting guide rails, 44 connecting plates, 45 front section guide rail concave base plates, 46 guide rail convex base plates, 47 rear section guide rail concave base plates.

Detailed ways

Referring to Fig. 1-Fig. 8, a tunnel boring machine segment crane mechanism of the utility model includes a guide wheel 1, a transmission 2, a traveling motor 3, a guide rail 4, a traveling wheel 5, a friction wheel 6 and an increasing friction device 7, two The parallel I-shaped guide rails 4 are connected to each other by cross beams 8, and the walking wheels 5 installed on the inside of the vertical plates 9 on both sides are arranged in the grooves on both sides of the guide rail 4, and the friction between the vertical plates 9 on both sides is installed on the rotating The wheel 6 is in contact with the bottom surface of the track 2, and the travel motor 3 on the vertical plate 9 is connected to the friction wheel 6 through the transmission 2. It is characterized in that the guide rail 4 is composed of a plurality of guide rail assemblies docked, and the guide rail assemblies include: Front section guide rail 41, rear section guide rail 42, connecting guide rail 43, connecting plate 44, front section guide rail concave bottom plate 45, guide rail convex bottom plate 46 and rear section guide rail concave bottom plate 47, front section guide rail 41, rear section guide rail 42 and connecting guide rail 43 The cross-sectional shapes of the three are T-shaped, and there is a gap between the three, and they are connected sequentially through the connecting plates 44 on both sides. The other end is provided with transverse elongated hole, and passes bolt 48 and is connected with connecting guide rail 43; The lower edge of front section guide rail 41, back section guide rail 42 and connecting guide rail 43 is welded with front section guide rail concave bottom plate 45, guide rail convex bottom plate 46 and Rear segment guide rail concave base plate 47 is provided with a groove at the butt joint surface of the front segment guide rail concave base plate 45 and the rear segment guide rail concave base plate 47, and the two ends of the guide rail convex base plate 46 are provided with the front segment guide rail concave base plate. The protrusion that the groove of 45 and rear segment guide rail concave base plate 47 cooperates leaves gap between this front segment guide rail concave base plate 45, guide rail convex base plate 46 and rear segment guide rail concave base plate 47 three.

The friction wheel 6 is made of steel material, with knurling on its outer peripheral surface, which increases the friction force between the friction wheel 6 and the bottom plate of the guide rail, and provides sufficient friction force for the segment to walk on the guide rail assembly at an inclined movement angle , to prevent slipping.

A guide wheel 1 is provided on the outer side of the vertical plate 9 of the guide rail 4 .

The shaft of the friction wheel 6 is equipped with an increased friction device 7, and the middle part of the increased friction device 7 is rotated and supported between the vertical plates 9 on both sides as a fulcrum, and the shaft of the friction wheel 6 is installed in front of the fulcrum of the increased friction device 7 , The front end of the increased friction device 7 is equipped with a pressurizing mechanism 10 (see Figure 4), and a spring structure can be used to cover the bolts to apply an upward force to the front end of the increased friction device 7.

The working principle of the utility model: the docking assembly constitutes the hinge mechanism of the guide rail, which can flexibly bend when the tunnel boring machine turns, reduces the stress and avoids damage; the travel motor 3 drives the friction wheel 6 to rotate through the transmission 2, and the friction wheel 6 is integrated It is made of steel and has sufficient strength to ensure the service life of the friction wheel 6; the circumferential surface of the friction wheel 6 is knurled, which increases the friction between the friction wheel 6 and the bottom plate of the guide rail 4, and ensures that the segment hoist is There is enough friction to walk on the guide rail assembly inclined at a certain angle, so that the segment crane can not only walk on the guide rail assembly that is horizontal or close to the level, but also walk on the guide rail assembly inclined at a certain angle.

When the tunnel boring machine turns, the guide rail 4 is bent by an external force, and the bolt 48 can move in the opening of the connecting plate 44. Due to the concave bottom plate 45 of the front section guide rail, the convex bottom plate 46 of the guide rail and the concave bottom plate 47 of the rear section guide rail There is a gap between them to ensure the flexible bending of the guide rail assembly; the driving motor 3 is the driving force, and the friction wheel 6 is driven to rotate through the speed change of the transmission 2, and the friction force between the friction wheel 6 and the bottom plate of the guide rail provides power for the segment crane to travel; the travel wheel 5 is in the The guide rail assembly moves on and bears the gravity of the segment crane and the segments; the guide wheels 1 are installed on both sides of the guide rail assembly to ensure that the segment crane moves on the guide rail assembly.

Claims (4)

1. A tunnel boring machine segment crane traveling mechanism, including guide wheels, speed changer, travel motor, guide rail, travel wheel, friction wheel and friction increasing device, two parallel I-shaped guide rails are connected to each other by crossbeams, and are installed in rotation The walking wheels on the inside of the vertical plates on both sides are set in the grooves on both sides of the guide rail, and the friction wheels installed between the vertical plates on both sides are rotated against the bottom surface of the track. The walking motor on the vertical plate is driven by the transmission and the friction wheel. connection, it is characterized in that the guide rail is composed of a plurality of guide rail assemblies docked, and the guide rail assembly includes: the front section guide rail, the rear section guide rail, the connecting guide rail, the connecting plate, the front section guide rail concave bottom plate, the guide rail convex bottom plate and the rear section guide rail Concave bottom plate, the cross-sectional shape of the front section guide rail, the rear section guide rail and the connecting guide rail are all T-shaped, there is a gap between the three, and they are connected through the connecting plates on both sides in turn, and one end of the connecting plate is welded on the front section of the guide rail and the rear section On the side of the butt end of the guide rail, the other end of the connecting plate is provided with a horizontal long hole, and is connected to the connecting guide rail through bolts; the concave bottom plate of the front section guide rail, the convex bottom plate of the guide rail are respectively welded on the lower side of the front section guide rail, the rear section guide rail and the connecting guide rail and the rear section guide rail concave bottom plate, grooves are provided on the butt joint surface of the front section guide rail concave bottom plate and the rear section guide rail concave bottom plate, and the two ends of the guide rail convex bottom plate are provided with the front section guide rail concave bottom plate and the rear section The groove matching protrusion of the guide rail concave base plate leaves a gap between the front segment guide rail concave base plate, the guide rail convex base plate and the rear segment guide rail concave base plate. 2. The traveling mechanism of the tunnel boring machine segment crane according to claim 1, characterized in that, the friction wheel is made of steel material, and knurls are provided on its outer peripheral surface. 3. The traveling mechanism of the tunnel boring machine segment crane according to claim 1, characterized in that guide wheels are provided outside the vertical plate of the guide rail. 4. The traveling mechanism of tunnel boring machine segment crane according to claim 1, characterized in that, the shaft of the friction wheel is equipped with an increasing friction device, and the middle part of the increasing friction device rotates and supports the vertical plates on both sides As a fulcrum, the shaft of the friction wheel is installed in front of the fulcrum of the increased friction device, and the front end of the increased friction device is equipped with a pressurizing mechanism.