Lifting device of crushing station guard plate

Abstract

The utility model discloses a lifting device for a guard plate of a crushing station, which belongs to the field of crusher equipment and comprises a stock bin, the guard plate and a driving mechanism, an inlet and outlet is arranged below the stock bin, the guard plate is slidably connected onto the stock bin, the driving mechanism comprises a driving motor, a driving shaft, a driving chain wheel, a lifting chain and a tensioning component, and the driving motor is positioned above the stock bin. The driving motor is in transmission connection with the driving shaft, the driving chain wheel is installed on the driving shaft, one end of the lifting chain is connected with the protection plate, the middle of the lifting chain is wound around the driving chain wheel, the tensioning assembly is used for tensioning the other end of the lifting chain, and the driving motor is used for driving the protection plate to ascend and descend through the lifting chain so that the protection plate can be located above the entrance or cover the entrance. According to the utility model, the protection plate can realize the protection effect of normal operation of the crushing station, the driving motor is arranged above the stock bin, more bottom space can be reserved for the robot, and the robot can enter the stock bin along the entrance and exit to carry out roller tooth repairing operation.

Description

Technical Field

[0001] The utility model relates to the technical field of crusher equipment, in particular to a lifting device for a crushing station guard plate. Background Art

[0002] Crusher is a widely used equipment in mining machinery. It is used to break large ores mined in mines into small pieces so that the small pieces of ores can be loaded and transported. When the crusher breaks the ore, the transport mechanism is used to transport the ore to be broken into the crushing mechanism. The crushing mechanism has two rollers with roller teeth built in. They rotate with each other under the drive of the motor to squeeze and break the ore transported to the crushing mechanism. The small ores after breaking fall from the bottom of the crushing mechanism and are transported by the transport vehicle at the bottom of the crushing mechanism.

[0003] However, when the crusher is performing ore crushing operations, it is inevitable that it will encounter ore with higher hardness, which will cause certain wear or even cracks on the roller teeth on the roller shaft, affecting the crushing effect of the crusher on the ore. Therefore, after the roller teeth are worn or cracked, the roller teeth need to be repaired. The existing roller tooth repair method is to manually enter the crushing mechanism and use a handheld welding gun to perform welding repairs. It is inconvenient for the operator to stand in the crushing mechanism, which increases the difficulty of the welding repair operation. Before repairing, it is necessary to start the motor to drive the roller shaft to rotate so that the operator can find the roller teeth that need to be repaired. Since the inertia of the motor-driven roller shaft of the crushing mechanism is large, it is easy to cause the rotation angle of the roller teeth to be repaired to be too large and miss the best repair angle. When using robot automatic welding, the existing crushing station protective plate needs to be modified. The lifting device of the existing crushing station protective plate is generally located at the bottom, which occupies a large bottom space and cannot leave more space for the welding robot. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a lifting device for a crushing station guard plate, which solves the problem that the lifting device for the existing crushing station guard plate is generally arranged at the bottom, occupies a large space at the bottom, and cannot leave more space for the welding robot.

[0005] According to an embodiment of the utility model, a lifting device for a crushing station guard plate comprises:

[0006] A silo, wherein the silo has a containing cavity inside, and an entrance and exit communicating with the containing cavity are arranged below the silo;

[0007] A guard plate slidably connected to the silo;

[0008] The driving mechanism includes a driving motor, a driving shaft, a driving sprocket, a lifting chain and a tensioning assembly. The driving motor is located above the silo, the driving motor is connected to the driving shaft, the driving sprocket is installed on the driving shaft, one end of the lifting chain is connected to the guard plate, the middle part of the lifting chain is wound around the driving sprocket, the tensioning assembly is arranged below the driving sprocket, the tensioning assembly is used to tension the other end of the lifting chain, and the driving motor is used to drive the guard plate to rise and fall through the lifting chain so that the guard plate is located above the entrance and exit or covers the entrance and exit.

[0009] A lifting device for a crushing station guard plate according to an embodiment of the utility model has at least the following beneficial effects:

[0010] The drive motor drives the guard plate to rise and fall through the drive shaft, drive sprocket and lifting chain. The tensioning assembly can tension the lifting chain away from one end of the guard plate to ensure that the drive sprocket can firmly engage the lifting chain. The silo is set around the crusher, and the accommodating cavity inside the silo facilitates the robot to repair the roller teeth of the crusher. The drive motor drives the guard plate to rise above the entrance and exit, so that the entrance and exit are opened, and the robot can enter the silo along the entrance and exit to repair the roller teeth. The drive motor drives the guard plate to descend to cover the entrance and exit, so that the entrance and exit are closed, realizing the protection function of the normal operation of the crushing station.

[0011] The lifting chain is used to pull the guard plate, which can save space compared with the screw drive. The lifting chain is connected to the guard plate and the drive sprocket in a flexible way to reduce the impact. The drive motor is located above the silo, and the bottom space is small, leaving more space for the welding robot.

[0012] According to some embodiments of the utility model, the lifting device of the crushing station guard plate also includes a track mechanism, the track mechanism includes a first guide rail, a second guide rail, a first slider and a second slider, the first guide rail and the second guide rail are arranged on the silo, the first slider and the second slider are respectively installed at both ends of the guard plate along the width direction of the guard plate, the first slider is slidably connected to the first guide rail, the second slider is slidably connected to the second guide rail, and the first guide rail and the second guide rail are guided in the up and down directions.

[0013] According to some embodiments of the utility model, two first baffles and two second baffles are provided on the silo, the two first baffles are provided on both sides of the first guide rail, the two second baffles are provided on both sides of the second guide rail, the first baffle is used to cover the first slider to prevent dust, and the second baffle is used to cover the second slider to prevent dust.

[0014] According to some embodiments of the present utility model, accordion covers are provided on the first guide rail and the second guide rail.

[0015] According to some embodiments of the utility model, the lifting device of the crushing station guard plate also includes a safety mechanism, which includes a driving assembly and a safety latch, the driving assembly is installed on the silo, the safety latch is slidably connected to the silo, a latch plate is protruding from the guard plate, a latch hole is provided on the latch plate, and the driving assembly is used to drive the safety latch to be inserted into the latch hole when the guard plate moves above the entrance and exit.

[0016] According to some embodiments of the utility model, the tensioning assembly includes a tensioning seat and a tensioning wheel, the tensioning wheel is rotatably connected to the tensioning seat, and the driving mechanism also includes a mounting seat, and the driving motor and the tensioning seat are both mounted on the mounting seat.

[0017] According to some embodiments of the utility model, a long slot hole is provided on the tensioning seat, an adjustment seat is protrudingly provided on the mounting seat, an adjustment threaded hole is provided on the adjustment seat, an adjustment bolt is passed through the adjustment threaded hole, one end of the adjustment bolt abuts against the tensioning seat, the length direction of the long slot hole is consistent with the axial direction of the adjustment bolt, and the adjustment bolt is used to adjust the tensioning force of the tensioning wheel on the lifting chain.

[0018] According to some embodiments of the utility model, the driving mechanism further comprises a chain collecting box, which is arranged below the tensioning wheel, and a storage cavity with an open upper end is arranged in the chain collecting box, and the chain collecting box is used for stacking the other end of the lifting chain.

[0019] According to some embodiments of the utility model, a plurality of reinforcing ribs are protrudingly provided on the guard plate.

[0020] According to some embodiments of the utility model, the driving motor is connected to the driving shaft through a reducer, both ends of the driving shaft extend out of the reducer respectively, two driving sprockets are provided, two lifting chains are provided, the two driving sprockets are installed at both ends of the driving shaft, and the two lifting chains respectively bypass the two driving sprockets and are connected to the guard plate.

[0021] Additional aspects and advantages of the present invention will be partially presented in the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0023] Figure 1 This is a schematic diagram of the structure of the lifting device of the crushing station guard plate according to an embodiment of the utility model;

[0024] Figure 2 for Figure 1The enlarged view of point A in the middle;

[0025] Figure 3 This is a schematic structural diagram of a silo of a lifting device for a crushing station guard plate according to an embodiment of the utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the driving mechanism of the lifting device of the crushing station guard plate according to an embodiment of the utility model;

[0027] Figure 5 for Figure 4 The enlarged view of point B in the middle;

[0028] Figure 6 This is a schematic structural diagram of the guard plate of the lifting device of the crushing station guard plate according to an embodiment of the utility model.

[0029] Figure Number:

[0030] 100, silo; 110, entrance and exit; 120, first baffle; 130, second baffle;

[0031] 200, guard plate; 210, latch plate; 211, latch hole; 220, reinforcing rib;

[0032] 300, driving mechanism; 310, driving motor; 311, speed reducer; 320, driving shaft; 330, driving sprocket; 340, lifting chain; 350, tensioning assembly; 351, tensioning seat; 3511, long slot hole; 352, tensioning wheel; 353, adjusting seat; 354, adjusting bolt; 360, chain box; 361, storage cavity; 370, mounting seat;

[0033] 400, safety mechanism; 410, drive assembly; 420, safety latch. DETAILED DESCRIPTION

[0034] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] See also Figure 1 , Figure 2 and Figure 3 The embodiment of the utility model is a lifting device for a crushing station guard plate, comprising a silo 100, a guard plate 200 and a driving mechanism 300. The silo 100 has a containing cavity inside, and an entrance and exit 110 is arranged below the silo 100, the entrance and exit 110 is connected to the containing cavity, and the guard plate 200 is slidably connected to the silo 100. The driving mechanism 300 comprises a driving motor 310, a driving shaft 320, a driving sprocket 330, a lifting chain 340, a tensioning assembly 350 and a mounting seat 370. The driving motor 310 is located above the silo 100. When it is installed, the driving motor 310 is mounted on the mounting seat 370, and the mounting seat 370 is welded to the support frame of the crushing station through a steel bracket. The driving motor 310 is in transmission connection with the driving shaft 320, the driving sprocket 330 is installed on the driving shaft 320, one end of the lifting chain 340 is connected to the guard plate 200, the middle part of the lifting chain 340 is wound around the driving sprocket 330, and the tensioning assembly 350 is arranged below the driving sprocket 330, and the tensioning assembly 350 is used to tension the other end of the lifting chain 340. The driving motor 310 drives the guard plate 200 to rise and fall through the lifting chain 340, so that the guard plate 200 is located above the entrance 110 or covers the entrance 110.

[0038] The driving motor 310 drives the guard plate 200 to rise and fall through the driving shaft 320, the driving sprocket 330 and the lifting chain 340. The tensioning assembly 350 can tension the lifting chain 340 away from the end of the guard plate 200 to ensure that the driving sprocket 330 can firmly engage the lifting chain 340. The silo 100 is arranged around the crusher, and the accommodating cavity inside the silo 100 facilitates the robot to repair the roller teeth of the crusher. The driving motor 310 drives the guard plate 200 to rise above the entrance and exit 110, so that the entrance and exit 110 is opened, and the robot can enter the silo 100 along the entrance and exit 110 to repair the roller teeth. The driving motor 310 drives the guard plate 200 to descend to cover the entrance and exit 110, so that the entrance and exit 110 is closed, realizing the protection function of the normal operation of the crushing station.

[0039] The use of the lifting chain 340 to pull the guard plate 200 can save space compared to the screw drive. The lifting chain 340 is connected to the guard plate 200 and the driving sprocket 330 in a flexible manner to reduce impact. The driving motor 310 is arranged above the silo 100, and the bottom space is small, so that more space can be left for the welding robot.

[0040] In some embodiments, see Figure 1 and Figure 3 The lifting device of the crushing station guard plate also includes a track mechanism, which includes a first guide rail, a second guide rail, a first slider and a second slider. The first guide rail and the second guide rail are arranged on the silo 100, and the first slider and the second slider are respectively installed at both ends of the guard plate 200 along the width direction of the guard plate 200. The first slider is slidably connected to the first guide rail, and the second slider is slidably connected to the second guide rail. The first guide rail and the second guide rail are guided in the up and down direction. The first guide rail and the second guide rail are both C-groove guide rails. The track assembly can provide motion constraints for the guard plate 200 to ensure that the guard plate 200 can be smoothly lifted and lowered in the vertical direction under the drive of the lifting chain 340.

[0041] In some embodiments, see Figure 1 and Figure 3 The silo 100 is provided with two first baffles 120 and two second baffles 130. The two first baffles 120 are arranged on both sides of the first guide rail, and the two second baffles 130 are arranged on both sides of the second guide rail. The first baffle 120 is used to shield the first slider to prevent dust, and the second baffle 130 is used to shield the second slider to prevent dust. The first baffle 120 and the second baffle can also play a guiding and limiting role for the guard plate 200, ensuring that one end of the guard plate 200 moves between the two first baffles 120, and the other end of the guard plate 200 moves between the two second baffles 130.

[0042] In some embodiments, see Figure 1 and Figure 3The first guide rail and the second guide rail are provided with an accordion cover. The accordion cover can provide a dustproof seal for the first guide rail and the second guide rail, thereby increasing the service life of the first guide rail and the second guide rail.

[0043] In some embodiments, see Figure 1 , Figure 2 and Figure 6 The lifting device of the guard plate of the crushing station also includes a safety mechanism 400, which includes a driving assembly 410 and a safety latch 420. The driving assembly 410 is installed on the silo 100, and the safety latch 420 is slidably connected to the silo 100. A latch plate 210 is protruding from the guard plate 200, and a latch hole 211 is provided on the latch plate 210. The driving assembly 410 is used to drive the safety latch 420 to insert into the latch hole 211 when the guard plate 200 moves to above the entrance and exit 110. The driving assembly 410 can be an electric telescopic cylinder or a driving cylinder. The driving motor 310 drives the guard plate 200 to rise above the entrance and exit 110 through the lifting chain 340, and the driving assembly 410 drives the safety latch 420 to insert into the latch hole 211; even if the driving mechanism 300 fails, the guard plate 200 will not fall, which can improve the safety performance of the equipment.

[0044] In some embodiments, see Figure 4 and Figure 5 The tensioning assembly 350 includes a tensioning seat 351 and a tensioning wheel 352, and the tensioning wheel 352 is rotatably connected to the tensioning seat 351. The tensioning wheel 352 can tension the other end of the lifting chain 340, increase the contact area between the lifting chain 340 and the driving sprocket 330, and ensure that the lifting chain 340 is not easily disengaged from the driving sprocket 330.

[0045] In some embodiments, see Figure 4 and Figure 5 The tensioning seat 351 is provided with a long slot hole 3511, and the mounting seat 370 is provided with an adjustment seat 353 protruding therefrom. The adjustment seat 353 is provided with an adjustment threaded hole, and an adjustment bolt 354 is inserted into the adjustment threaded hole, and one end of the adjustment bolt 354 abuts against the tensioning seat 351. The length direction of the long slot hole 3511 is consistent with the axial direction of the adjustment bolt 354, and the adjustment bolt 354 is used to adjust the tensioning force of the tensioning wheel 352 on the lifting chain 340. By turning the adjustment bolt 354, the distance that the adjustment bolt 354 extends out of the adjustment seat 353 increases, thereby shortening the distance between the tensioning seat 351 and the adjustment seat 353, so that the tensioning seat 351 can be closer to the vertical plane where the central axis of the driving sprocket 330 is located, thereby increasing the tensioning force of the tensioning wheel 352 on the lifting chain 340.

[0046] In some embodiments, see Figure 1 and Figure 5The driving mechanism 300 further includes a chain receiving box 360, which is disposed below the tensioning wheel 352. The chain receiving box 360 is provided with a storage cavity 361 with an open upper end, and the chain receiving box 360 is used for stacking the other end of the lifting chain 340. When the driving motor 310 drives the guard plate 200 to rise through the lifting chain 340, one end of the lifting chain 340 is connected to the guard plate 200, and the other end can be stored in the chain receiving box 360.

[0047] In some embodiments, see Figure 1 and Figure 6 A plurality of reinforcing ribs 220 are protruding from the guard plate 200 , which can improve the strength of the guard plate 200 and improve the impact resistance of the guard plate 200 .

[0048] In some embodiments, see Figure 1 and Figure 4 The driving motor 310 is connected to the driving shaft 320 through the speed reducer 311, and the two ends of the driving shaft 320 extend out of the speed reducer 311 respectively. Two driving sprockets 330 are provided, and two lifting chains 340 are provided. The two driving sprockets 330 are installed at the two ends of the driving shaft 320, and the two lifting chains 340 bypass the two driving sprockets 330 and are connected to the guard plate 200. The two lifting chains 340 drive the guard plate 200 to rise and fall, and the two lifting chains 340 are arranged at intervals, and the double chains have a large span, good overall balance, and good stability.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0050] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A lifting device for a crushing station guard plate, characterized in that: include: A silo, wherein the silo has a containing cavity inside, and an entrance and exit communicating with the containing cavity are arranged below the silo; A guard plate slidably connected to the silo; The driving mechanism includes a driving motor, a driving shaft, a driving sprocket, a lifting chain and a tensioning assembly. The driving motor is located above the silo, the driving motor is connected to the driving shaft, the driving sprocket is installed on the driving shaft, one end of the lifting chain is connected to the guard plate, the middle part of the lifting chain is wound around the driving sprocket, the tensioning assembly is arranged below the driving sprocket, the tensioning assembly is used to tension the other end of the lifting chain, and the driving motor is used to drive the guard plate to rise and fall through the lifting chain so that the guard plate is located above the entrance and exit or covers the entrance and exit.

2. A lifting device for a crushing station guard plate according to claim 1, characterized in that: It also includes a track mechanism, which includes a first guide rail, a second guide rail, a first slider and a second slider. The first guide rail and the second guide rail are arranged on the silo, and the first slider and the second slider are respectively installed at both ends of the guard plate along the width direction of the guard plate. The first slider is slidably connected to the first guide rail, and the second slider is slidably connected to the second guide rail. The first guide rail and the second guide rail are guided in the up and down directions.

3. A lifting device for a crushing station guard plate according to claim 2, characterized in that: Two first baffles and two second baffles are provided on the silo, the two first baffles are provided on both sides of the first guide rail, and the two second baffles are provided on both sides of the second guide rail. The first baffle is used to cover the first slider to prevent dust, and the second baffle is used to cover the second slider to prevent dust.

4. A lifting device for a crushing station guard plate according to claim 2, characterized in that: The first guide rail and the second guide rail are provided with accordion covers.

5. The lifting device of the crushing station guard plate according to claim 1 is characterized in that: It also includes a safety mechanism, which includes a driving assembly and a safety latch, the driving assembly is installed on the silo, the safety latch is slidably connected to the silo, a latch plate is protruding from the guard plate, and a latch hole is provided on the latch plate, and the driving assembly is used to drive the safety latch to be inserted into the latch hole when the guard plate moves above the entrance and exit.

6. The lifting device of the crushing station guard plate according to claim 1 is characterized in that: The tensioning assembly includes a tensioning seat and a tensioning wheel, the tensioning wheel is rotatably connected to the tensioning seat, and the driving mechanism also includes a mounting seat, the driving motor and the tensioning seat are both mounted on the mounting seat.

7. A lifting device for a crushing station guard plate according to claim 6, characterized in that: The tensioning seat is provided with a long slot hole, the mounting seat is protrudingly provided with an adjustment seat, the adjustment seat is provided with an adjustment threaded hole, an adjustment bolt is passed through the adjustment threaded hole, one end of the adjustment bolt abuts against the tensioning seat, the length direction of the long slot hole is consistent with the axial direction of the adjustment bolt, and the adjustment bolt is used to adjust the tensioning force of the tensioning wheel on the lifting chain.

8. The lifting device for the guard plate of a crushing station according to claim 6, characterized in that: The driving mechanism further comprises a chain collecting box, which is arranged below the tensioning wheel. A storage cavity with an open upper end is arranged in the chain collecting box, and the chain collecting box is used for stacking the other end of the lifting chain.

9. The lifting device for the crushing station guard plate according to claim 1, characterized in that: A plurality of reinforcing ribs are protrudingly arranged on the guard plate.

10. The lifting device for the crushing station guard plate according to claim 1, characterized in that: The driving motor is connected to the driving shaft through a speed reducer, and both ends of the driving shaft extend out of the speed reducer respectively. Two driving sprockets are provided, and two lifting chains are provided. The two driving sprockets are installed at both ends of the driving shaft, and the two lifting chains bypass the two driving sprockets and are connected to the guard plate respectively.

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