阅读说明：本技术 一种盾构出渣用物料输送系统 (Shield constructs material conveying system for slagging tap ) 是由 夏伟 于 2020-03-30 设计创作，主要内容包括：本发明公开了一种盾构出渣用物料输送系统,包括转弯段机架、输送带、上托辊、侧托辊和设置于所述转弯段机架上且用于对所述输送带施加吸引力的磁吸装置,转弯段机架为圆弧形,所述侧托辊、上托辊和磁吸装置为沿转弯段机架的宽度方向依次布置且磁吸装置与转弯段机架的圆心之间的距离大于侧托辊与转弯段机架的圆心之间的距离。本发明的盾构出渣用物料输送系统,通过设置磁吸装置,使输送带处于磁场中,输送带紧贴在磁吸装置上运行,实现物料的安全输送,避免转弯段出现输送带的叠带或翻带现象发生的同时,还能避免造成撒料和划伤输送带的问题。(The invention discloses a material conveying system for shield slag discharge, which comprises a turning section rack, a conveying belt, an upper carrier roller, side carrier rollers and a magnetic suction device, wherein the magnetic suction device is arranged on the turning section rack and is used for exerting attraction force on the conveying belt, the turning section rack is in a circular arc shape, the side carrier rollers, the upper carrier rollers and the magnetic suction device are sequentially arranged along the width direction of the turning section rack, and the distance between the magnetic suction device and the circle center of the turning section rack is larger than the distance between the side carrier rollers and the circle center of the turning section rack. According to the material conveying system for shield slag discharge, the conveying belt is positioned in the magnetic field through the magnetic suction device, the conveying belt is tightly attached to the magnetic suction device to operate, the safe conveying of materials is realized, the phenomena of belt folding or belt overturning of the conveying belt at the turning section are avoided, and the problems of material scattering and belt scratching of the conveying belt are also avoided.)

1. The utility model provides a shield constructs material conveying system for slagging tap, includes turn section frame, conveyer belt, upper supporting roller and side bearing roller, its characterized in that: the magnetic attraction device is arranged on the turning section rack and used for applying attraction to the conveying belt, the turning section rack is arc-shaped, the side carrier rollers, the upper carrier roller and the magnetic attraction device are sequentially arranged along the width direction of the turning section rack, and the distance between the magnetic attraction device and the circle center of the turning section rack is larger than the distance between the side carrier rollers and the circle center of the turning section rack.

2. The shield tapping material conveying system of claim 1, wherein: the magnetic attraction device comprises a first side bracket and a permanent magnet arranged on the first side bracket, the permanent magnet and the side carrier roller are arranged oppositely, and the upper carrier roller is positioned between the side carrier roller and the permanent magnet.

3. The shield tapping material conveying system according to claim 2, wherein: the first side bracket is detachably connected with the turning section rack.

4. The shield tapping material conveying system according to claim 2 or 3, wherein: the first side bracket is provided with a limiting block and a positioning block, the turning section rack is provided with a positioning groove for embedding the positioning block, and the limiting block is connected with the turning section rack through a bolt.

5. The shield tapping material conveying system according to any one of claims 2 to 4, wherein: the magnetic attraction device further comprises a first supporting rod connected with the turning section rack and the first side bracket.

6. The shield tapping material conveying system according to any one of claims 1 to 5, wherein: still including set up in second side bracket on the turn section frame and the second bracing piece of being connected with second side bracket and turn section frame, the side bearing roller is rotatable and sets up on second side bracket.

7. The shield tapping material conveying system according to any one of claims 1 to 6, wherein: the side supporting rollers are provided with a plurality of side supporting rollers, all the side supporting rollers are sequentially arranged along the arc length direction of the turning section rack, and the number of the upper supporting rollers and the number of the magnetic suction devices are the same as that of the side supporting rollers.

Technical Field

The invention belongs to the technical field of belt conveyors for tunnels, and particularly relates to a material conveying system for shield slag discharge.

Background

Various curves (convex arc curve, concave arc curve and turning section) are common in a slag discharging line of the underground tunnel engineering, and when a conveying belt of the belt conveyor passes through the turning section, the conveying belt can be deviated towards the inner curve side due to different tensions at the inner side and the outer side; when the tension exceeds a certain value, the outer curve side conveying belt can be lifted from the supporting roller until the outer curve side conveying belt turns over towards the inner curve side, namely, the outer curve side conveying belt is stacked (the upper belt faces are overlapped), and the inner curve side conveying belt is turned over (the upper belt faces downwards). In order to avoid the phenomenon of belt overlapping or belt turning, the existing main measures are to arrange a pinch roller above an upper branch conveying belt and arrange a pinch roller above a lower branch conveying belt so as to forcibly limit the lifting of the conveying belt, but the measures easily cause the problems of material scattering, belt scratching and the like.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a material conveying system for shield slag discharge, and aims to avoid the phenomena of overlapping or overturning of a conveying belt at a turning section and the problems of material scattering and scratching of the conveying belt.

In order to achieve the purpose, the invention adopts the technical scheme that: the shield constructs material conveying system for slagging tap, including turn section frame, conveyer belt, upper roll, side bearing roller and set up in on the turn section frame and be used for right the conveyer belt is applyed the device is inhaled to magnetism of appeal, and the turn section frame is convex, side bearing roller, upper roll and magnetism are inhaled the device and are arranged in proper order and inhale the distance between the centre of a circle of device and turn section frame and be greater than the distance between the centre of a circle of side bearing roller and turn section frame for the width direction along the turn section frame.

The magnetic attraction device comprises a first side bracket and a permanent magnet arranged on the first side bracket, the permanent magnet and the side carrier roller are arranged oppositely, and the upper carrier roller is positioned between the side carrier roller and the permanent magnet.

The first side bracket is detachably connected with the turning section rack.

The first side bracket is provided with a limiting block and a positioning block, the turning section rack is provided with a positioning groove for embedding the positioning block, and the limiting block is connected with the turning section rack through a bolt.

The magnetic attraction device further comprises a first supporting rod connected with the turning section rack and the first side bracket.

The shield structure slag tapping material conveying system further comprises a second side bracket arranged on the turning section rack and a second supporting rod connected with the second side bracket and the turning section rack, and the side supporting roller is rotatably arranged on the second side bracket.

The side supporting rollers are provided with a plurality of side supporting rollers, all the side supporting rollers are sequentially arranged along the arc length direction of the turning section rack, and the number of the upper supporting rollers and the number of the magnetic suction devices are the same as that of the side supporting rollers.

According to the material conveying system for shield slag discharge, the conveying belt is positioned in the magnetic field through the magnetic suction device, the conveying belt is tightly attached to the magnetic suction device to operate, the safe conveying of materials is realized, the phenomena of belt folding or belt overturning of the conveying belt at the turning section are avoided, and the problems of material scattering and belt scratching of the conveying belt are also avoided.

Drawings

The description includes the following figures, the contents shown are respectively:

FIG. 1 is a front view of a shield slag tapping material delivery system of the present invention;

FIG. 2 is a top plan view of the shield slag tapping material delivery system of the present invention;

FIG. 3 is a force analysis diagram of the shield slag tapping material conveying system of the present invention;

FIG. 4 is a schematic view of the attachment of the first side bracket to the frame;

labeled as: 1. a turning section frame; 2. an upper supporting roller; 3. a lower carrier roller; 4. a conveyor belt; 5. a first side bracket; 6. a permanent magnet; 7. a first support bar; 8. a second side bracket; 9. side supporting rollers; 10. a second support bar; 11. a limiting block; 12. positioning blocks; 13. and (6) positioning a groove.

Detailed Description

The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for a purpose of helping those skilled in the art to more fully, accurately and deeply understand the concept and technical solution of the present invention and to facilitate its implementation.

It should be noted that, in the following embodiments, the "first" and "second" do not represent an absolute distinction relationship in structure and/or function, nor represent a sequential execution order, but merely for convenience of description.

As shown in fig. 1 to 4, the invention provides a material conveying system for shield slag discharge, which comprises a turning section frame 1, a conveying belt 4, an upper carrier roller 2, a side carrier roller 9 and a magnetic attraction device arranged on the turning section frame 1 and used for exerting attraction force on the conveying belt 4, wherein the turning section frame 1 is arc-shaped, the side carrier roller 9, the upper carrier roller 2 and the magnetic attraction device are sequentially arranged along the width direction of the turning section frame 1, and the distance between the magnetic attraction device and the circle center of the turning section frame 1 is larger than the distance between the side carrier roller 9 and the circle center of the turning section frame 1.

Specifically, as shown in fig. 1 and 2, the turning section frame 1 has a circular arc structure, and the axis of the turning section frame 1 is a vertical line. The two ends of the turning section rack 1 in the arc length direction are respectively connected with a straight line section rack, the straight line section rack is a rack with straight length, the length direction of the straight line section rack is the horizontal direction, the length direction of the straight line section rack is perpendicular to the axis of the turning section rack 1 in space, the turning section rack 1 is located between the two straight line section racks, and the turning section rack 1 is fixedly arranged on the ground in a tunnel. The upper supporting roller 2 is rotatably arranged on the turning section rack 1, the axis of the upper supporting roller 2 is a cylinder, the axis of the upper supporting roller 2 is perpendicular to the axis of the turning section rack 1 in space, the axis of the upper supporting roller 2 is a horizontal line, the upper supporting roller 2 is positioned below the conveying belt 4, the bottom surface of the conveying belt 4 is in contact with the outer circular surface of the upper supporting roller 2, the upper supporting roller 2 supports the conveying belt 4, the upper supporting roller 2 is positioned on the radial line of the turning section rack 1, and the upper supporting roller 2 is positioned at the middle position in the width direction of the turning section rack 1.

As shown in fig. 1 and 2, the magnetic attraction device includes a first side bracket 5 and a permanent magnet disposed on the first side bracket 5, the permanent magnet and the side idler 9 are oppositely disposed, and the upper idler 2 is located between the side idler 9 and the permanent magnet. Side bearing roller 9 is rotatable setting, side bearing roller 9 is the cylinder, contained angle and this contained angle have between the axis of side bearing roller 9 and the axis of upper roller 2 are the obtuse angle, side bearing roller 9 sets up for the slope, side bearing roller 9 stretches out towards one side top of upper roller 2, the permanent magnet also sets up for the slope, the permanent magnet stretches out towards the opposite side top of upper roller 2, contained angle and this contained angle have between the length direction of permanent magnet and the axis of upper roller 2 are the obtuse angle, contained angle and this contained angle have between the length direction of permanent magnet and the axis of side bearing roller 9 are the acute angle, the vertical distance between the lower extreme of permanent magnet and the lower extreme of side bearing roller 9 is less than the vertical distance between the upper end of permanent magnet and the upper end of side bearing roller.

The shield slag tapping material conveying system further comprises a driving device (not shown in the figure) for driving the conveying belt 4 to move, the driving device mainly comprises a driving roller, a driven roller and a driving motor for providing driving force for the driving roller, and the conveying belt 4 is sleeved on the driving roller and the driven roller. Drive roll is located the one end of frame, driven cylinder is located the other end of frame, drive roll is connected with driving motor's motor shaft, drive roll parallels with driven cylinder's axis, drive roll is located the one end of conveyer belt 4, driven cylinder is located the other end of conveyer belt 4, driving motor operation back, drive roll rotates, drive roll drives the operation of conveyer belt 4, and then makes conveyer belt 4 drive the operation of conveyer belt 4, carry the dregs in the tunnel to assigned position department. The belt core of the conveying belt 4 is made of a steel wire rope, the permanent magnet is arranged below the conveying belt 4, the permanent magnet exerts attraction on the conveying belt 4 through the attraction between the permanent magnet and the conveying belt 4 of the steel wire rope core, one part of the conveying belt 4 is tightly attached to the permanent magnet to run, and the rest part of the conveying belt 4 is in contact with the side carrier roller 9 and the upper carrier roller 2, so that the safe conveying of materials is realized. Therefore, the conveyer belt 4 is in the magnetic field, and the conveyer belt 4 is hugged closely and is inhaled the device and go up the operation in magnetism, realizes the safe transport of material, when avoiding turning section to appear the folding area of conveyer belt 4 or turn over the area phenomenon and take place, can also avoid causing and spill the problem of material and fish tail conveyer belt 4.

As shown in fig. 1 and 2, the magnetic attraction device further includes a first support rod 7 connected to the turning section frame 1 and the first side bracket 5, and the first support rod 7 is used for providing a supporting function for the first side bracket 5. The material conveying system for shield slag tapping further comprises a second side bracket 8 arranged on the turning section rack 1 and a second supporting rod 10 connected with the second side bracket 8 and the turning section rack 1, and a side carrier roller 9 is rotatably arranged on the second side bracket 8. The first side bracket 5 and the second side bracket 8 are arranged oppositely, the first side bracket 5 and the second side bracket 8 are both arranged obliquely, the length direction of the first side bracket 5 is parallel to the length direction of the permanent magnet, the length direction of the second side bracket 8 is parallel to the axis of the side carrier roller 9, the distance between the lower end of the first side bracket 5 and the lower end of the second side bracket 8 is smaller than the distance between the upper end of the first side bracket 5 and the upper end of the second side bracket 8, the height of the upper end of the first side bracket 5 is the same as that of the upper end of the second side bracket 8, the vertical distance between the first side bracket 5 and the axis of the turning section rack 1 is larger than that between the second side bracket 8 and the axis of the turning section rack 1, and the upper carrier roller 2 is positioned between the lower end of the first side bracket 5 and the lower end of the. The lower end of the first supporting rod 7 is rotatably connected with the turning section rack 1, and the upper end of the first supporting rod 7 is connected with the first side bracket 5. The lower extreme and the turn section frame 1 fixed connection of second bracing piece 10, the upper end and the second side bracket 8 of second bracing piece 10 are connected, and second bracing piece 10 is used for providing the supporting role to second side bracket 8.

Preferably, as shown in fig. 1 and 2, a plurality of side idlers 9 are provided, all the side idlers 9 are sequentially arranged along the arc length direction of the turning section frame 1 and are equidistantly distributed, the number of the upper idlers 2 and the magnetic suction devices is the same as that of the side idlers 9, and each side idler 9 and one upper idler 2 and one magnetic suction device are respectively positioned on the same straight line perpendicular to the axis of the turning section frame 1, so that support and suction force can be provided for the conveyor belt 4 at a plurality of positions, and the stable operation of the conveyor belt 4 is ensured.

In the present embodiment, as shown in fig. 1 and 2, three side idlers 9 are provided in total.

After the magnetic attraction device is used for a long time, the magnetism of the permanent magnet can be weakened, and after the magnetism of the permanent magnet is weakened, a new permanent magnet needs to be replaced. Preferably, the first side bracket 5 is detachably connected with the turning section frame 1, so that the first side bracket 5 can be detached to replace the permanent magnet on the first side bracket 5. As shown in fig. 1, fig. 2 and fig. 4, the first side bracket 5 is provided with a limiting block 11 and a positioning block 12, the turning section frame 1 is provided with a positioning groove 13 for embedding the positioning block 12, and the limiting block 11 is connected with the turning section frame 1 through a bolt. The two limiting blocks 11 are arranged, the two limiting blocks 11 are located on the same straight line parallel to the width direction of the first side bracket 5, the width direction of the first side bracket 5 is the horizontal direction, and the width direction of the first side bracket 5 is perpendicular to the axis of the upper carrier roller 2. Stopper 11 stretches out towards the below of first side bracket 5, the upper end of stopper 11 and the lower extreme fixed connection of first side bracket 5, partly imbed between two stoppers 11 of turn section frame 1 and the outer wall of this part of turn section frame 1 laminates with two stoppers 11 mutually, stopper 11 is used for playing limiting displacement to first side bracket 5 in the width direction of first side bracket 5, avoid first side bracket 5 and the permanent magnet on it to be driven by conveyer belt 4 and remove, avoid becoming flexible, and the reliability is improved. The limiting block 11 is connected with the turning section frame 1 through a bolt, the first side bracket 5 is also connected with the upper end of the first supporting rod 7 through a bolt, and a through hole for the bolt to pass is formed in the limiting block 11, so that the first side bracket 5 and the turning section frame 1 can be conveniently disassembled. When the permanent magnet needs to be replaced, the bolt on the limiting block 11 and the bolt for connecting the first supporting rod 7 with the first side bracket 5 are unscrewed, the first supporting rod 7 rotates downwards, then the first side bracket 5 can be moved out, the permanent magnet on the first side bracket 5 is replaced or the first side bracket 5 is communicated with the permanent magnet to be replaced together, and then the first side bracket 5 with a new permanent magnet is installed on the turning section rack 1. The lower extreme of first side bracket 5 sets up locating piece 12, sets up on the top surface of turn section frame 1 and lets locating piece 12 male constant head tank 13, and locating piece 12 and constant head tank 13 cooperate for play the guide effect to first side bracket 5 when first side bracket 5 installs, improve the installation effectiveness. Positioning block 12 has certain length, the length direction of positioning block 12 parallels with the axis of upper roll 2, positioning block 12 is located between two stopper 11, positioning block 12 and the bottom surface fixed connection of first side bracket 5, the width direction of positioning block 12 and constant head tank 13 parallels with the width direction of first side bracket 5, the width of positioning block 12 is the same with the width size of constant head tank 13, constant head tank 13 forms the opening that lets positioning block 12 pass through on the outer wall of turn section frame 1, make things convenient for the dismouting of first side bracket 5. And the locating piece 12 contacts with the turning section frame 1, can transmit the shearing force, improves the intensity that first side bracket 5 is connected with the turning section frame 1, ensures the security of work.

The tension of the conveyer belt 4 at the turning section is shown in a graph in fig. 3, and if the inertia force and the friction force of the materials and the conveyer belt 4 are neglected, the stress diagram of the conveyer belt 4 at the outer curve side of the turning section is shown in a graph b in fig. 3. The steel wire rope core conveying belt 4 is placed above the magnetic attraction device and is placed in a strong magnetic field generated by the magnetic attraction device, and the steel wire rope in the conveying belt 4 is made of ferromagnetic materials and is easy to attract to generate strong pull-down force, so that the action of conventional measures and the pressure on the upper surface of the conveying belt 4 are converted into the attraction force of the magnetic attraction device on the bottom surface of the conveying belt 4. Under the traction of the belt conveyor power, the conveying belt 4 is tightly attached to the magnetic suction device to operate, and the safe conveying of materials is realized.

The invention is described above with reference to the accompanying drawings. It is to be understood that the specific implementations of the invention are not limited in this respect. Various insubstantial improvements are made by adopting the method conception and the technical scheme of the invention; the present invention is not limited to the above embodiments, and can be modified in various ways.