CN210593847U - Belt tensioning device and muck conveyor - Google Patents

Abstract

The utility model discloses a belt tensioning device and dregs conveyer, this belt tensioning device include the support frame, install hydraulic cylinder on the support frame, and slide mechanism is installed to hydraulic cylinder's piston rod front end, still is equipped with the slide rail corresponding with slide mechanism on the support frame, installs the tensioning cylinder that is used for contradicting and tensioning belt on slide mechanism. This belt overspeed device tensioner adopts the mode that hydraulic cylinder drive tensioning roller contradicted the belt to come the tensioning belt, and simple structure is compact, and is small, can not produce the obstacle to the work of other equipment in the tunnel, is favorable to going on in order of tunnel excavation work, and overspeed device tensioner's usable dregs conveyer's frame is as the support frame to integrate as an organic wholely with the dregs conveyer, do not occupy extra space in the tunnel. The utility model discloses dregs conveyer adopts external power device, and power device is located the side of initiative cylinder, can avoid soaking muddy water among the power device, and conveniently protects, maintains power device.

Description

Belt tensioning device and muck conveyor

Technical Field

The utility model relates to a shield constructs quick-witted dregs conveying equipment technical field, concretely relates to belt overspeed device tensioner and dregs conveyer.

Background

The dregs generated by the tunnel excavated by the shield machine need to be transported out of the tunnel through a rear matched conveyor, and the following problems can be encountered by the rear matched dregs conveyor of the shield machine in the actual work: firstly, the belt of the conveyor can deform and extend after long-time work, so that the fit between the belt and the driving roller becomes loose, the belt is easy to slip, and the transportation efficiency is reduced; secondly, the driving roller of the existing residue soil conveyor is internally provided with a driving motor, and because a great deal of water seeps out of the conveyed residue soil, and the roller is positioned below the belt, the water flows into the driving roller to easily cause the damage of the built-in motor, and the built-in power device is very complicated to disassemble and assemble and is inconvenient to maintain.

Chinese patent publication No. CN208485186U describes a belt feeder tensioning device and a shield machine belt feeder, where the belt feeder tensioning device described in the patent document has a complex structure and includes a plurality of direction-changing drums, resulting in a large volume of the tensioning device, the shield machine belt feeder needs to occupy a large space in a tunnel, and the space in the tunnel is narrow, and the large space occupied by the belt feeder can hinder other equipment operations.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a belt overspeed device tensioner and dregs conveyer, the overspeed device tensioner who solves prior art shield structure machine dregs conveyer structure complicacy, bulky, the big technical problem of occupation space.

In order to solve the above technical problem, the first aspect of the present invention is:

the belt tensioning device comprises a support frame, wherein a hydraulic oil cylinder is installed on the support frame, a sliding mechanism is installed at the front end of a piston rod of the hydraulic oil cylinder, a sliding rail corresponding to the sliding mechanism is further arranged on the support frame, and a tensioning roller used for abutting against and tensioning a belt is installed on the sliding mechanism.

Preferably, the sliding mechanism is provided with two lug seats for mounting the tensioning roller.

Preferably, the slide rail is a grooved rail, and the sliding mechanism is provided with a slide block or a roller corresponding to the grooved rail.

The second aspect of the utility model is:

the design provides a dregs conveyer, includes the frame that extends along dregs direction of delivery, install initiative cylinder and a plurality of groups bearing roller in the frame, and be used for the drive the power device of initiative cylinder, initiative cylinder and bearing roller bear the weight of the belt that is used for carrying the dregs, dregs conveyer still is equipped with the utility model discloses the first aspect belt overspeed device tensioner.

Preferably, the power device is an external power device and comprises a motor and a reduction gearbox, a rotating shaft of the motor is connected to an input shaft of the reduction gearbox, and an output shaft of the reduction gearbox is connected to a rotating shaft of the driving roller.

The utility model has the advantages of:

1. the utility model provides a belt tightener adopts the mode of hydraulic cylinder drive tensioning cylinder conflict belt to come the tensioning belt, and simple structure is compact, and is small, can not produce the obstacle to the work of other equipment in the tunnel, is favorable to going on in order of tunnel excavation work.

2. The frame of the slag conveyor can be used as a support frame of the tensioning device, so that the tensioning device and the slag conveyor are integrated into a whole, and additional space in a tunnel is not occupied.

3. The utility model provides a dregs conveyer adopts external power device, and power device is located the side of initiative cylinder, can avoid among the power device to dip muddy water, and conveniently protects, maintains power device.

Drawings

Fig. 1 is a schematic structural view of a belt tensioner according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a sliding mechanism of a belt tensioner according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a support of a belt tensioner according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a muck conveyor according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a power device of the muck conveyor according to an embodiment of the present invention.

In the drawings, each reference numeral means: longitudinal beam 111, cross bar 112, slide rail 113, upright rod 114, longitudinal rod 115, hydraulic oil cylinder 12, sliding mechanism 13, support plate 131, slide block 132, ear seat 133, front cross beam 134, tensioning roller 14, driving roller 151, belt 152, rotary roller 153, support 16, vertical plate 161, rear cross beam 162, carrier roller 17, motor 181, coupling 182 and reduction gearbox 183.

Detailed Description

The following embodiments are only intended to illustrate the present invention in detail, and do not limit the scope of the present invention in any way.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example 1:

a belt tensioner, please refer to fig. 1-3.

As shown in fig. 1, the embodiment of the present invention provides a belt tensioner including a support frame, in this embodiment, a frame of a belt conveyor is used as the support frame, the support frame includes two longitudinal beams 111 at a lower portion, the two longitudinal beams 111 are connected through a plurality of cross rods 112, and the two longitudinal beams 111 and the plurality of cross rods 112 form a platform capable of supporting.

The hydraulic cylinder 12 is installed on the support frame, the sliding mechanism 13 is installed at the front end of the piston rod of the hydraulic cylinder 12, the slide rail 113 corresponding to the sliding mechanism 13 is further arranged on the support frame, the tensioning roller 14 for abutting against and tensioning the belt 152 is installed on the sliding mechanism 13, and the driving roller 151 for driving the belt 152 is installed at one end of the support frame.

As shown in fig. 2, the sliding mechanism 13 includes a supporting plate 131 at the top, sliding blocks 132 are respectively disposed on two sides of the supporting plate 131, the sliding rail 113 is a grooved rail formed by a longitudinal beam 111 and two blocking plates 1111 welded at corresponding positions on the longitudinal beam 111, the sliding blocks 132 are installed in the grooved rail, and grease is injected into the grooved rail to facilitate the sliding of the sliding blocks 132. Ear seats 133 for mounting the tension roller 14 are respectively provided on both sides of the support plate 131, and a front cross member 134 for connecting the front ends of the hydraulic cylinders 12 is provided between the two ear seats 133.

A support 16 is installed behind the hydraulic cylinder 12, as shown in fig. 3, the support 16 includes two left and right vertical plates 161 welded to corresponding positions on the longitudinal beam 111, a rear cross beam 162 is installed between the two vertical plates 161, and the rear end of the hydraulic cylinder 12 is installed on the rear cross beam 162.

The sliding rail 113 is disposed along the longitudinal direction, and under the driving of the hydraulic cylinder 12, the sliding mechanism 13 can be close to or far away from the driving roller 151, so as to drive the tension roller 14 to be close to or far away from the driving roller 151, when the tension roller 14 moves to the right to be close to the driving roller 151, the tension roller 14 can collide against and press the belt 152, so as to tension the belt, and when the tension roller 14 moves to the left to be far away from the driving roller 151, the belt 152 can reduce the tension.

Example 2:

a muck conveyor, please refer to fig. 4 and 5.

The embodiment of the utility model provides a dregs conveyer is used for the conveyer as the shield structure machine.

As shown in fig. 4, the muck conveyor includes a frame extending in a muck conveying direction, the frame includes two longitudinal beams 111 at a lower portion, the two longitudinal beams 111 are connected by a plurality of cross bars 112, and the two longitudinal beams 111 and the plurality of cross bars 112 form a platform capable of supporting. A plurality of vertical rods 114 are arranged on two longitudinal beams 111 at intervals, vertical rods 115 for supporting carrier rollers 17 are arranged on the vertical rods 114, a plurality of groups of carrier rollers 17 are arranged along the extension direction of the frame, a driving roller 151 is arranged at the end part of the frame, the driving roller 151 and the carrier rollers 17 bear a belt 152 for conveying dregs, and a rotary roller 153 is arranged at the tail end of the frame for realizing the circular operation of the belt 152.

The muck conveyor is also provided with a belt tensioner as in example 1. Hydraulic cylinder 12 of the belt tensioner can move tensioning roller 14 toward or away from drive roller 151, and as tensioning roller 14 moves to the right toward drive roller 151, tensioning roller 14 can interfere with and compress belt 152, thereby tensioning the belt, and as tensioning roller 14 moves to the left away from drive roller 151, belt 152 can be de-tensioned.

In addition, an external power device is arranged beside the driving roller 151, and compared with the power device arranged in the driving roller 151, the external power device is arranged in the driving roller of the belt conveyor on the existing shield machine, so that much water can seep out of the residue soil conveyed by the residue soil conveyor of the shield machine and flows to the driving roller, the built-in power device is easily damaged, and the built-in power device is very complicated to maintain.

As shown in fig. 2, the external power device in the present application includes a motor 181 and a reduction gearbox 183, a rotating shaft of the motor 181 is connected to an input shaft of the reduction gearbox 183 through a coupling 182, and an output shaft of the reduction gearbox 183 is connected to a rotating shaft of the driving roller 151, so as to drive the driving roller. The external power device is convenient to protect and maintain, and prevents water and silt from flowing into the motor and the reduction gearbox to damage the motor and the reduction gearbox.

The present invention has been described in detail with reference to the accompanying drawings and embodiments, but those skilled in the art will understand that various specific parameters in the above embodiments can be changed without departing from the spirit of the present invention to form a plurality of specific embodiments, which are the common variation ranges of the present invention and will not be described in detail herein.

Claims (5)

1. A belt tensioning device comprises a support frame, wherein a hydraulic oil cylinder is installed on the support frame, a sliding mechanism is installed at the front end of a piston rod of the hydraulic oil cylinder, a sliding rail corresponding to the sliding mechanism is further arranged on the support frame, and a tensioning roller used for abutting against and tensioning a belt is installed on the sliding mechanism.

2. A belt tensioner as claimed in claim 1, wherein the slide mechanism is provided with two lugs for mounting the tensioning roller.

3. A belt tensioner according to claim 1, wherein the slide track is a grooved track and the sliding mechanism is provided with a slider or roller corresponding to the grooved track.

4. A muck conveyor, comprising a frame extending along the muck conveying direction, wherein a driving roller and a plurality of groups of carrier rollers are arranged on the frame, and a power device for driving the driving roller, the driving roller and the carrier rollers carry belts for conveying muck, and the muck conveyor is further provided with a belt tensioning device according to any one of claims 1 to 3.

5. The muck conveyor according to claim 4, wherein the power device is an external power device and comprises a motor and a reduction gearbox, a rotating shaft of the motor is connected to an input shaft of the reduction gearbox, and an output shaft of the reduction gearbox is connected to a rotating shaft of the driving roller.

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