Idler support and belt conveyor for coal mine including the same

Abstract

The present invention relates to a roller support and a belt conveyor for coal mines including the same. The roller support includes: a long support cross beam for fixing the roller support; a first support for supporting an obliquely arranged first roller, which is arranged at the first end of the support cross beam in a slidable manner; an intermediate support for supporting a horizontally arranged intermediate roller, which is arranged at the intermediate position of the support cross beam in a slidable manner; a second support for supporting a second roller, which is arranged at the second end of the support cross beam in a slidable manner and has a first position for obliquely arranging the second roller and a second position for horizontally arranging the second roller. In the first position, the second roller, the first roller and the intermediate roller form a trough shape. In the second position, the second roller can be slid to the first end of the support cross beam for disassembly and assembly. The present invention can extract the roller support without lifting the conveyor belt or removing the surrounding sealed material guiding trough, and replace the damaged roller, thereby shortening the replacement time and improving the transportation efficiency.

Description

[Technical field]

[0002] The present invention relates to the field of belt conveyors for coal mines, and in particular to a roller support and a belt conveyor for coal mines comprising the same. [Background technology]

[0004] Belt conveyors are machines that transport materials in a continuous manner and are widely used in various industries. Idlers are installed under the conveyor belt to support the conveyor belt and reduce the impact on the conveyor belt, thereby extending the life of the belt conveyor. They are important components of the belt conveyor.

[0005] Affected by many factors such as its own material, sealing quality, stress conditions and working environment, the rollers will deform and fail in the case of long-term operation. In order to ensure the normal operation of the belt conveyor, the necessary roller replacement process is required.

[0006] The existing roller bracket is an integrated welded roller bracket. When a single roller is damaged, it is often necessary to shut down the belt conveyor first, lift the conveyor belt or remove the surrounding sealed material guide trough, and then replace the roller. The replacement process is complicated and the labor intensity of the replacement personnel is high, which seriously affects the transportation efficiency. [Summary of the invention]

[0008] In view of this, the present invention provides a roller support and a belt conveyor for coal mines including the same, thereby solving or at least alleviating one or more of the above-mentioned problems and other problems existing in the prior art.

[0009] In order to achieve the above-mentioned object, the first aspect of the present invention provides a roller support for a coal mine belt conveyor, wherein the roller support comprises:

[0010] An elongated supporting crossbeam, wherein the supporting crossbeam is used to fix the roller bracket;

[0011] A first support, the first support is used to support an inclined first roller, and the first support is slidably disposed at a first end of the supporting beam;

[0012] An intermediate support, the intermediate support is used to support a horizontal intermediate roller, and the intermediate support is slidably disposed at a middle position of the supporting crossbeam; and

[0013] a second support, the second support is used to support the second roller, the second support is slidably arranged at the second end of the supporting beam, the second support has a first posture of obliquely placing the second roller and a second posture of horizontally placing the second roller,

[0014] Wherein: when in the first position, the second idler, the first idler and the intermediate idler form a trough shape for supporting the conveyor belt; when in the second position, the second idler can be slid to the first end of the support cross beam for disassembly and assembly.

[0015] In the idler support as described above, optionally, a first sliding groove is formed at the bottom of the first support, an intermediate sliding groove is formed at the bottom of the intermediate support, a second sliding groove is formed at the bottom of the second support, a guide rail is formed at the top of the support cross beam, and the guide rail cooperates with the first sliding groove, the intermediate sliding groove and the second sliding groove to guide the first support, the intermediate support and the second support.

[0016] In the idler support as described above, optionally, the second support includes a horizontal first support rod, a second support rod for mounting the second idler, and a third support rod connecting the first support rod and the second support rod. The first end of the second support rod is hinged to the distal end of the first support rod, the second end of the second support rod is hinged to the distal end of the third support rod, the proximal end of the third support rod is hinged to the proximal end of the bottom of the second support and is close to the proximal end of the first support rod. The first support rod is independent of the bottom of the second support and can slide along the support cross beam. An operating rod is provided at the proximal end of the first support rod. By sliding the first support rod along the support cross beam through the operating rod, the pose change of the second support and the sliding of the second support on the support cross beam can be controlled.

[0017] In the idler support as described above, optionally, the second support has two first support rods and two second support rods respectively located on both sides of the support cross beam, and the bottom of the third support rod has a receiving space capable of receiving the bottom of the second support.

[0018] In the idler support as described above, optionally, the second support further has a first vertical plate and a second vertical plate. The first vertical plate is erected at the proximal end of the bottom of the second support, the second vertical plate is hinged to the distal end of the third support rod, and both ends of the second idler are respectively hinged to the tops of the first vertical plate and the second vertical plate through a first idler seat and a second idler seat.

[0019] In the idler support as described above, optionally, the proximal end of the first support rod includes a slider, and the slider cooperates with the support cross beam to guide the sliding of the first support rod.

[0020] In the idler support as described above, optionally, the intermediate support includes a third vertical plate located at the proximal end of the intermediate support and a fourth vertical plate located at the distal end of the intermediate support, and both ends of the intermediate idler are respectively mounted on the tops of the third vertical plate and the fourth vertical plate.

[0021] The first support includes a fifth vertical plate located at the proximal end of the first support and a sixth vertical plate located at the distal end of the first support. Both ends of the first idler are respectively mounted on the tops of the fifth vertical plate and the sixth vertical plate.

[0022] And the sixth vertical plate and the third vertical plate are connected by a first guiding and limiting member, and the fourth vertical plate and the first vertical plate are connected by a second guiding and limiting member.

[0023] In the idler support as described above, optionally, the first support is fixed to the support cross beam by screws at the bottom, and a limiting plate for preventing the second support from slipping off is provided at the distal end of the support cross beam.

[0024] In the idler support as described above, optionally, the support cross beam has a triangular cross-sectional shape.

[0025] To achieve the foregoing object, a second aspect of the present invention provides a coal mine belt conveyor, wherein the coal mine belt conveyor adopts the idler support as described in any one of the foregoing first aspects.

[0026] Through the above settings, the present invention can replace the idler by the method of pulling out the idler support by the replacement personnel on one side without lifting the conveyor belt or removing the surrounding sealed material guiding trough, thereby shortening the replacement time, enhancing the continuity of material transportation, and improving the transportation efficiency.

BRIEF DESCRIPTION OF THE DRAWINGS

[0028] With reference to the accompanying drawings, the disclosure of the present invention will become more apparent. It should be understood that these drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the figures:

[0029] Figure 1 is a schematic structural diagram of an embodiment of the idler support of the present invention;

[0030] Figure 2 is Figure 1 a schematic structural diagram of the second support of the idler support in; and

[0031] Figure 3 is the second idler and Figure 2 a schematic structural diagram of the second support in another angle.

[0032] Reference numerals: 1 - supporting cross beam; 2 - first support; 3 - first idler; 4 - intermediate support; 5 - intermediate idler; 6 - second support; 7 - second idler; 8 - first chute; 9 - intermediate chute; 10 - second chute; 11 - first strut; 12 - second strut; 13 - third strut; 14 - operating rod; 15 - first vertical plate; 16 - second vertical plate; 17 - first idler seat; 18 - second idler seat; 19 - slider; 20 - third vertical plate; 21 - fourth vertical plate; 22 - fifth vertical plate; 23 - sixth vertical plate; 24 - first guiding and limiting member; 25 - second guiding and limiting member; 26 - limiting plate; 27 - extending wing; 28 - end cap; 29 - reinforcing rib plate; 30 - fixing rod.

Detailed implementation manners

[0034] Referring to the accompanying drawings and specific embodiments, the structure, composition, features, advantages, etc. of the idler support according to the present invention and the belt conveyor for coal mines including the same will be described by way of example below. However, all descriptions should not form any limitation to the present invention.

[0035] In addition, for any single technical feature described or implied in the embodiments mentioned herein, or any single technical feature shown or implied in the respective drawings, the present invention still allows any combination or deletion to continue between these technical features (or their equivalents) without any technical obstacles. Therefore, it should be considered that these more embodiments according to the present invention are also within the scope of the present disclosure.

[0036] It should also be noted that terms such as "arranged" and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected or indirectly connected through an intermediate medium, unless otherwise clearly defined. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] The orientation or positional relationship indicated by terms such as "upper", "lower", "top", "front", "left", "right", etc. is the orientation or positional relationship of each component when the idler support shown in the accompanying drawings is applied to the belt conveyor for coal mines. It is only for the convenience of describing the present disclosure 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. Therefore, it cannot be understood as a limitation to the present disclosure.

[0038] Furthermore, the terms "first", "second", "third", "fourth", "fifth", and "sixth" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", "third", "fourth", "fifth", or "sixth" may explicitly or implicitly include at least one such feature. The meaning of "a plurality of" and the like is at least three and more than three, unless otherwise specifically and clearly defined.

[0039] Figure 1 It is a schematic structural view of an embodiment of the idler support of the present invention.

[0040] As can be seen from the figure, the idler support of the present invention includes a support crossbeam 1, a first support 2, an intermediate support 4, and a second support 6.

[0041] The support crossbeam 1 is elongated and can be fixed to the frame of the belt conveyor, arranged such that its length direction is along the width direction of the conveyor belt. The support crossbeam 1 is used to fix the idler support. As shown in the figure, the first support 2, the intermediate support 4, and the second support 6 are all mounted on the support crossbeam 1 and are arranged in sequence from the first end to the second end of the support crossbeam 1. In the figure, the first end is on the left side of the figure and the second end is on the right side of the figure.

[0042] In the illustrated example, the first support 2 can be removed from the first end of the support crossbeam 1, the intermediate support 4 can slide along the support crossbeam 1 to its first end and be removed, and the second support 6 can be retracted to lay the second idler 7 flat and then slide along the support crossbeam 1 to its first end and be removed.

[0043] As shown in the figure, the first support 2 includes a first chute 8, a fifth vertical plate 22, and a sixth vertical plate 23 for supporting the first idler 3. The first idler 3 is obliquely supported on the upper ends of the fifth vertical plate 22 and the sixth vertical plate 23. Both ends of the first chute 8 are connected to the lower ends of the fifth vertical plate 22 and the sixth vertical plate 23. To maintain the configuration of the first support 2, a reinforcing rib plate 29 is provided at the intersection of the fifth vertical plate 22 and the first chute 8. The first support 2 can slide along the support crossbeam 1 through the first chute 8. At the installation position, the first chute 8 and the first support 2 are fixed by screws.

[0044] As shown in the figure, the intermediate support 4 includes an intermediate chute 9, a third vertical plate 20, and a fourth vertical plate 21 for supporting the intermediate idler 5. The intermediate idler 5 is horizontally supported on the upper ends of the third vertical plate 20 and the fourth vertical plate 21. Both ends of the intermediate chute 9 are connected to the lower ends of the third vertical plate 20 and the fourth vertical plate 21. The intermediate support 4 can slide along the support crossbeam 1 through the intermediate chute 9 and can be removed when it slides to the first end of the support crossbeam 1, i.e., the left side in the figure.

[0045] As shown in the figure, the second support 6 includes a first support rod 11, a second support rod 12, a third support rod 13, a second chute 10, a first vertical plate 15, and a second vertical plate 16. The second idler 7 is supported by a first idler seat 17 at the upper end of the first vertical plate 15 and a second idler seat 18 at the upper end of the second vertical plate 16. The second support rod 12 is used to support the second idler 5. The first support rod 11, the second support rod 12, and the third support rod 13 of the second support 6 are configured to have an adjustable pose, so that the second idler 7 can be switched between a horizontal pose and an inclined pose. In the horizontal pose, it can slide along the support cross beam 1 through the second chute 10 to the first end of the support cross beam 1, that is, the left side in the figure, so as to remove the second idler 7.

[0046] In this embodiment, a first chute 8 is formed at the bottom of the first support 2, an intermediate chute 9 is formed at the bottom of the intermediate support 4, a second chute 10 is formed at the bottom of the second support 6, and a guide rail is formed at the top of the support cross beam 1. The guide rail cooperates with the first chute 8, the intermediate chute 9, and the second chute 10 to guide the first support 2, the intermediate support 4, and the second support 6.

[0047] It can be seen that the first support 2 near the proximal end of the intermediate support 4 is used to fix the first idler 3, so that the first idler 3 is inclined relative to the intermediate idler 5. The second support 6 near the distal end of the intermediate support 4 is used to fix the second idler 7, so that the second idler 7 can be inclined relative to the intermediate idler 5. Thus, the first idler 3, the intermediate idler 5, and the second idler 7 together form a supporting groove, constituting a trough shape for supporting the conveyor belt. The conveyor belt of the belt conveyor is placed in this supporting groove, which can effectively prevent the blocky or powdery materials on the conveyor belt from falling off the conveyor belt. At the same time, the setting of the trough idlers can not only prevent the conveyor belt from running off track and make it run smoothly, but also effectively reduce the impact of the material falling at the receiving place on the conveyor belt and extend the service life of the belt conveyor.

[0048] According to the illustrated example, the first support 2 is detachably connected to the intermediate support 4, and the intermediate support 4 is detachably connected to the second support 6. By setting like this, when the belt conveyor runs, it drives the idlers to vibrate, and the relative movement of each support can absorb and eliminate the vibration and impact, making the operation tend to be stable. Further, compared with the integral idler bracket, the idler bracket of the present invention will not be scrapped as a whole due to local deformation or cracking, and has a longer service life.

[0049] As can be seen from the figure, the first support 2 includes a first chute 8, a fifth vertical plate 22, and a sixth vertical plate 23. The fifth vertical plate 22 is fixed at the proximal end of the first chute 8, the sixth vertical plate 23 is fixed at the distal end of the first chute 8, and both ends of the first idler 3 are respectively installed at the top ends of the fifth vertical plate 22 and the sixth vertical plate 23.

[0050] The sixth vertical plate 23 is provided with a first guiding and limiting member 24, and the first support 2 is detachably connected to the intermediate support 4 through the first guiding and limiting member 24. Specifically, in this example, the first guiding and limiting member 24 can be a guiding plate or a guiding rod, which can be fixed to the side surface of the sixth vertical plate 23, and the front end thereof horizontally faces the third vertical plate 20 of the intermediate support 4. Through holes are provided at corresponding positions of the third vertical plate 20. When the first support 2 is pushed towards the intermediate support 4, the guiding and limiting member 24 is inserted into the through holes to connect the third vertical plate 20 and the sixth vertical plate 23, thereby realizing lateral limiting of the first support 2 and the intermediate support 4.

[0051] The bottom shape of the first chute 8 is the same as the upper surface shape of the support cross beam 1, so that the first chute 8 can be completely attached to the support cross beam 1. Through the arrangement of the first chute 8 and the first guiding and limiting member 24, the sliding of the first support 2 on the support cross beam 1 can be realized. When the first idler 3 is damaged, only need to pull out the first support 2 outward, then the first support 2 slides along the support cross beam 1 and naturally separates from the intermediate support 4 under the action of external force, thereby realizing the disassembly of the first support 2, and then the first idler 3 can be replaced. The whole process has simple steps and less replacement time, greatly reducing the influence of idler damage on the belt conveyor and ensuring the operation efficiency of the belt conveyor.

[0052] In this embodiment, the first chute 8 can be fixed to the support cross beam 1 by bolts, so as to prevent the first support 2 from slipping off the support cross beam 1 during the operation of the belt conveyor, thereby causing the conveyor belt to deviate or even slip, and further affecting the material conveying. The number of bolts can be 2, which are respectively arranged on both sides of the first chute 8, which can not only stabilize the first support 2, but also not make the disassembly process too cumbersome and increase the workload of the replacement personnel. In this embodiment, the bolts can be close to the proximal end of the first chute 8, that is, close to the outer side of the conveyor belt. Since the first guiding and limiting member 24 on the sixth vertical plate 23 is connected to the intermediate support 4, the stability of the second end of the first chute 8 fixedly connected to the sixth vertical plate 23 is guaranteed. Therefore, the bolts close to the first end of the first chute 8 will not only affect the stability of the first support 2, but also make the operation of the replacement personnel more convenient. In other alternative embodiments, the number of bolts can be multiple, and different numbers of bolts can be selected according to actual situations, such as 4, 6, etc.

[0053] In this embodiment, a end cover 28 can be provided at the proximal end of the first chute 8, and the shape of the end cover 28 can be the same as the cross-sectional shape of the support cross beam 1. A bolt can be provided at the end cover 28 to further fasten the first chute 8 and the support cross beam 1 through this bolt, further strengthening the stability of the first support 2. At the same time, the end cover 28 can also play a limiting role to prevent the first support 2 from being too close to the distal end of the support cross beam 1 when the installation of the first support 2 is restored, causing extrusion to the intermediate support 4 and the second support 6.

[0054] The height of the fifth vertical plate 22 is greater than that of the sixth vertical plate 23, so as to raise the first end of the first idler 3 to achieve the purpose of tilting the first idler 3. The fifth vertical plate 22 and the sixth vertical plate 23 can adopt U-shaped plates. On the one hand, the U-shaped plates have high structural strength and strong compressive capacity, and can better support the idlers and the conveyor belt laid on the idlers; on the other hand, the U-shaped plates have a larger area in contact with the first chute 8, that is to say, the fixing surface of the U-shaped plates is wider, and the connection stability is relatively stronger. On this basis, the fifth vertical plate 22 and the sixth vertical plate 23 can be fixed on the first chute 8 by welding; or the first chute 8, the fifth vertical plate 22 and the sixth vertical plate 23 are integral parts. Card slots can be provided at the tops of the fifth vertical plate 22 and the sixth vertical plate 23, and both ends of the first idler 3 are clamped at the card slots, so as to facilitate quick replacement when the first idler 3 is damaged.

[0055] In this embodiment, the first support 2 may further include a triangular reinforcing rib plate 29. The reinforcing rib plate 29 is arranged at the connection between the fifth vertical plate 22 and the first chute 8, which strengthens the structural strength of the first support 2, enables the first idler 3 to run smoothly, and the triangular shape setting of the reinforcing rib plate 29 further strengthens this.

[0056] As shown in the figure, the intermediate support 4 includes an intermediate chute 9, a third vertical plate 20 and a fourth vertical plate 21. The third vertical plate 20 is fixed at the proximal end of the intermediate chute 9 (i.e., the left side in the figure), and the fourth vertical plate 21 is fixed at the distal end of the intermediate chute 9. Both ends of the intermediate idler 5 are respectively supported at the tops of the third vertical plate 20 and the fourth vertical plate 21. Similar to the first chute 8, the intermediate chute 9 has the same shape as the support cross beam 1, so that the intermediate support 4 can slide on the support cross beam 1.

[0057] The fourth vertical plate 21 is provided with a second guiding and limiting member 25, and the intermediate support 4 is detachably connected to the second support 6 through the second guiding and limiting member 25. Specifically, in this example, the second guiding and limiting member 25 can be a guiding plate or a guiding rod, which can be fixed to the side surface of the fourth vertical plate 21, and the front end faces the first vertical plate 15 of the second support 6 horizontally. Through holes are provided at corresponding positions of the first vertical plate 15. When the intermediate support 4 is pushed towards the second support 6, the guiding and limiting member 25 is inserted into the through holes to connect the first vertical plate 15 and the fourth vertical plate 21, and laterally limit the intermediate support 2 and the second support 6.

[0058] When the intermediate idler 5 is damaged and needs to be repaired or replaced, first pull out the first support 2, then pull the intermediate support 4, drive the intermediate support 4 to slide on the support cross beam 1 and naturally separate from the second support 6, and finally pull out the intermediate support 4, and then replace the intermediate idler 5.

[0059] The top ends of the third vertical plate 20 and the fourth vertical plate 21 can be provided with clamping grooves, and both ends of the middle roller 5 are installed at the clamping grooves, so as to facilitate the replacement of the middle roller 5. The heights of the third vertical plate 20 and the fourth vertical plate 21 are the same, so that the middle roller 5 is placed horizontally. The height of the third vertical plate 20 can also be the same as the height of the sixth vertical plate 23, so that the second end of the first roller 3 is aligned with the first end of the middle roller 5. The fourth vertical plate 21 is provided with a second guiding and limiting member 25, and through the second guiding and limiting member 25, the middle support 4 is detachably connected to the second support 6.

[0060] In this embodiment, the third vertical plate 20 and the fourth vertical plate 21 can be fixedly connected to the second chute 10 by welding. Welding not only has a simple process, low cost, but also strong stability, which is more conducive to the entire roller support bracket to support the conveyor belt. In other alternative embodiments, the middle chute 9, the third vertical plate 20 and the fourth vertical plate 21 can also be integrally formed into the middle support 4.

[0061] Figure 2 For Figure 1 Schematic diagram of the structure of the second support of the middle roller bracket; Figure 3 For the second roller and Figure 2 Another perspective structural diagram of the second support in the middle, the following will be combined with Figure 2 And Figure 3 To illustrate the second support.

[0062] As can be seen from the figure, the second support 6 includes a second chute 10, a first support rod 11, a second support rod 12, a third support rod 13, a first vertical plate 15 and a second vertical plate 16. The two sides of the second chute 10 are respectively provided with horizontally arranged first support rods 11, and there is a gap between the first support rods 11 and the second chute 10, so that the first support rods 11 are independent of the bottom of the second support 6. The distal ends of the first support rods 11 are aligned with the distal ends of the second chute 10, and the proximal ends of the first support rods 11 extend beyond the proximal ends of the second chute 10. A slider 19 is provided between the proximal ends of the two first support rods 11. The bottom shape of the slider 19 is the same as the upper surface shape of the support cross beam 1, and the slider 19 fits on the support cross beam 1. The distal ends of the first support rods 11 are hinged to the first ends of the second support rods 12, the second ends of the second support rods 12 are hinged to the distal ends of the third support rods 13, and the proximal ends of the third support rods 13 are hinged to the proximal ends of the second chute 10.

[0063] The first vertical plate 15 is fixed at the first end of the second chute 10, and a first roller seat 17 is hinged at its top end. The first end of the second roller 7 is clamped in the first roller seat 17. A second vertical plate 16 is also hinged at the distal end of the third support rod 13, and a first roller seat 18 is provided at the top end of the second vertical plate 16. The second end of the second roller 7 is clamped in the first roller seat 18. The first roller 17 and the second roller 18 are respectively movably hinged at the top ends of the first vertical plate 15 and the second vertical plate 16.

[0064] In other alternative embodiments, the hinges of the components in the second support can be pin connections. The pin connection structure is simple and small in size, so the structure of the second support is relatively streamlined, making the idler bracket of the present invention more adaptable to the complex environments in coal mines, whether open or narrow.

[0065] When the conveyor belt is running normally, the second support 6 is in the first position. In this first position, as shown in the figure, the second rod 12 is perpendicular to the first rod 11, so that the second end of the second idler 7 is higher than the first end, and the second idler 7 is inclined relative to the intermediate idler 5. The first idler 3, the intermediate idler 5 and the second idler 7 form a trough shape for supporting the conveyor belt.

[0066] When the second idler 7 needs to be replaced, the second support 6 can be adjusted to the second position. In the second position, by pulling the first rod 11 forward to move it forward, the second rod 12 is gradually laid flat on both sides of the second chute 10 (see Figure 2 ), and the third rod 13 is also horizontally placed. The second idler 7 is parallel to the third rod 13. At this time, the height of the second idler 7 is less than the height of the conveyor belt, and the second idler 7 can be slid to the first end of the support crossbeam 1 through the second chute 10 to facilitate the replacement of the second idler 7.

[0067] As mentioned above, if the second idler 7 needs to be maintained or repaired, the second support 6 can be changed from the first position to the second position. The process is as follows: The staff pulls the operating rod 14 to drive the slider 19 (see Figure 2 ) to slide towards the first end of the support crossbeam 1, driving the first rod 11 to move forward, thereby driving the first end of the second rod 12 to move forward. The second end of the second rod 12 moves downward, further driving the distal end of the third rod 13 and the second vertical plate 16 to move downward, and finally making the third rod 13 and the second idler 7 horizontally placed below the conveyor belt; continue to move the slider 19. Since the proximal end of the third rod 13 is connected to the proximal end of the second chute 10, it drives the second chute 10 to slide along the support crossbeam 1 until the second support 6 reaches the first end of the support crossbeam 1.

[0068] In this way, without lifting the conveyor belt, by changing the second support from the first position to the second position, the replacement or repair of the second idler can be achieved. The process does not require shutting down the belt conveyor, ensuring the continuity of material transportation, improving the transportation efficiency, and bringing greater economic benefits to the mine production.

[0069] At the same time, when the working environment of the belt conveyor is a narrow coal road space, the operating space is limited, and the replacement or repair of damaged rollers will be more difficult to achieve. In this embodiment, the staff can directly pull out the roller bracket from one side of the belt conveyor, which solves the inconvenience of replacing or repairing damaged rollers, improves worker efficiency, and ensures the transportation efficiency of the belt conveyor.

[0070] In this embodiment, the third support rod 13 can be a U-shaped plate, the bottom of which forms a groove-shaped space that can accommodate the bottom of the second support 6, i.e., the second chute 10, to avoid the third support rod 13 from colliding with the second chute 10 during the process of the second roller 7 changing from the first posture to the second posture, thereby causing the second end of the second roller 7 to fall insufficiently or unable to fall, and ultimately failing to extract the second support 6 without lifting the conveyor belt. On this basis, a vertical fixing rod 30 can be set at the proximal end of the third support rod 13, one end of the fixing rod 30 is hinged to the third support rod 13, and the other end is fixed at the proximal end of the second chute 10, thereby raising the third support rod 13 and further avoiding the situation where the third support rod 13 and the second chute 10 collide with each other.

[0071] An operating rod 14 may be provided at the proximal end of the first support rod 12. By sliding the first support rod 11 along the support beam 1 through the operating rod 14, the posture change of the second support 6 can be controlled and the second support 6 can be slid on the support beam 1.

[0072] Specifically, in this embodiment, the operating rod 14 can be set on the slider 19. The operating rod 14 provides a fulcrum for the operator, and can more conveniently apply tension to the slider, so that the second support 6 can slide on the supporting beam 1 more effortlessly and smoothly. The proximal end of the operating rod 14 can be slightly downward relative to the distal end and abut against the middle slide groove 9, providing a lateral support force for the slider 19, so that the first support rod 11 and the second support rod 12 will not move forward, thereby ensuring that the second roller 7 remains in the first position.

[0073] In the foregoing, it is described in detail how to remove the first support 2, the intermediate support 4 and the second support 6. When the first support 2, the intermediate support 4 and the second support 6 are installed after overhaul, the reverse steps can be adopted. That is, the second support 6 is installed first, pushed to the second end of the supporting beam 1, and converted from the horizontal position of the second roller 7 to the inclined position of the second roller 7, and then the intermediate support 4 and the first support 2 are installed in place in turn, and finally the first support 2 and the supporting beam 1 are fixed in place by screws.

[0074] In this embodiment, the cross-section of the support crossbeam 1 can be triangular. Then, on the premise of not affecting the sliding of the first chute 8, the intermediate chute 9, and the second chute 10 on the support crossbeam 1, the first chute 8, the intermediate chute 9, and the second chute 10 are relatively not prone to deflecting with the support crossbeam 1, and can better guide the three supports, thereby preventing the three supports from tipping over. In other alternative embodiments, the cross-section of the support crossbeam 1 can also be a rectangle or other shapes that are not prone to mutual deflection.

[0075] In this embodiment, a limiting plate 26 is further provided at the distal end of the support crossbeam 1 (see Figure 3 ). The limiting plate 26 restricts the sliding of the second chute 10 on the support crossbeam 1, preventing the second chute 10 from slipping off the support crossbeam 1 and causing the deviation or slipping of the conveyor belt. At the same time, the end cover 28 of the first chute 8 and the limiting plate 26 jointly form the limiting of the first support 2, the intermediate support 4, and the second support 6 at both ends of the support crossbeam 1. The connection between the first support 2 and the intermediate support 4 and between the intermediate support 4 and the second support 6 further strengthens the stability of the first support 2, the intermediate support 4, and the second support 6 on the support crossbeam 1.

[0076] In this embodiment, extension wings 27 can be respectively provided at both ends of the support crossbeam 1, and the support crossbeam 1 is fixed to the frame by bolts, thereby increasing the stability on both sides of the idler bracket.

[0077] One aspect of the present invention also provides a coal mine belt conveyor, which has an idler bracket as described in one of the above embodiments. The coal mine belt conveyor with the aforementioned idler bracket can extract and replace the idler on one side without lifting the conveyor belt, etc., making the repair, maintenance, or replacement of the idler more convenient, taking less time, and minimizing the impact on the transportation efficiency of the coal mine belt conveyor.

[0078] The technical scope of the present invention is not limited to the content in the above description. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of the present invention, and these deformations and modifications should all fall within the scope of the present invention.

Claims

1. A roller support for a coal mine belt conveyor, characterized in that, The idler bracket includes: An elongated support crossbeam (1) for fixing the idler bracket; A first support (2) for supporting an obliquely arranged first idler (3), and the first support (2) is arranged at the first end of the support crossbeam (1) in a slidable manner; An intermediate support (4) for supporting a horizontally arranged intermediate idler (5), and the intermediate support (4) is arranged at the intermediate position of the support crossbeam (1) in a slidable manner; and A second support (6) for supporting a second idler (7), and the second support (6) is arranged at the second end of the support crossbeam (1) in a slidable manner. The second support (6) has a first position for obliquely arranging the second idler and a second position for horizontally arranging the second idler. Wherein: in the first position, the second idler (7), the first idler (3), and the intermediate idler (5) form a trough shape for supporting a conveyor belt; in the second position, the second idler (7) can be slid to the first end of the support crossbeam (1) for disassembly and assembly. The second support (6) includes a horizontal first support rod (11), a second support rod (12) for mounting the second idler (5), and a third support rod (13) connecting the first support rod (11) and the second support rod (12). The first end of the second support rod (12) is hinged to the distal end of the first support rod (11), the second end of the second support rod (12) is hinged to the distal end of the third support rod (13), and the proximal end of the third support rod (13) is hinged to the proximal part of the bottom of the second support (6) and is close to the proximal end of the first support rod (11). The first support rod (11) is independent of the bottom of the second support (6) and can slide along the support crossbeam (1). An operating rod (14) is arranged at the proximal end of the first support rod (12). By sliding the first support rod (11) along the support crossbeam (1) through the operating rod (14), the position change of the second support (6) and the sliding of the second support (6) on the support crossbeam (1) can be controlled. The proximal end of the first support rod (11) extends towards the first end of the support crossbeam (1) until the proximal end and the distal end of the first support rod (11) are on different sides of the hinge joint between the third support rod (13) and the bottom of the second support (6).

2. The idler bracket according to claim 1, characterized in that, A first chute (8) is formed at the bottom of the first support (2), an intermediate chute (9) is formed at the bottom of the intermediate support (4), a second chute (10) is formed at the bottom of the second support (6), and a guide rail is formed at the top of the support crossbeam (1). The guide rail cooperates with the first chute (8), the intermediate chute (9), and the second chute (10) to guide the first support (2), the intermediate support (4), and the second support (6).

3. The idler bracket according to claim 1, characterized in that, The second support (6) has two of the first struts (11) and two of the second struts (12) respectively located on both sides of the support cross beam (1), and the bottom of the third strut (13) has a receiving space capable of receiving the bottom of the second support (6).

4. The idler bracket according to claim 1, characterized in that, The second support (6) further has a first vertical plate (15) and a second vertical plate (16). The first vertical plate (15) is erected at the proximal end of the bottom of the second support (6), and the second vertical plate (16) is hinged at the distal end of the third strut (13). Both ends of the second idler are respectively hinged to the tops of the first vertical plate (15) and the second vertical plate (16) through a first idler bracket (17) and a second idler bracket (18).

5. The idler bracket according to claim 1, characterized in that, The proximal end of the first strut (11) includes a slider (19), and the slider (19) cooperating with the support cross beam (1) can guide the sliding of the first strut (11).

6. The idler bracket according to claim 4, wherein The intermediate support (4) includes a third vertical plate (20) located at the proximal end of the intermediate support (4) and a fourth vertical plate (21) located at the distal end of the intermediate support (4). Both ends of the intermediate idler (5) are respectively mounted on the tops of the third vertical plate (20) and the fourth vertical plate (21). The first support (2) includes a fifth vertical plate (22) located at the proximal end of the first support (2) and a sixth vertical plate (23) located at the distal end of the first support (2). Both ends of the first idler (3) are respectively mounted on the tops of the fifth vertical plate (22) and the sixth vertical plate (23). And the sixth vertical plate (23) and the third vertical plate (20) are connected by a first guiding and limiting member (24), and the fourth vertical plate (21) and the first vertical plate (15) are connected by a second guiding and limiting member (25).

7. The idler bracket according to claim 1, characterized in that, The first support (2) is fixed to the support cross beam (1) by screws at the bottom, and a limiting plate (26) for preventing the second support (6) from slipping off is provided at the distal end of the support cross beam (1).

8. The idler bracket according to claim 1, characterized in that The support cross beam (1) has a triangular cross-sectional shape.

9. A belt conveyor for coal mines, characterized in that, The coal mine belt conveyor adopts the idler bracket according to any one of the preceding claims 1 to 8.

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