Anti-reversion device of belt conveyor

Abstract

The utility model discloses an anti-reversion device of a belt conveyor, which comprises a base, and support plates are fixedly mounted on the left side and the right side of the base; the three-phase alternating-current motor is fixedly installed on the outer side of the supporting plate, and the output end of the three-phase alternating-current motor penetrates through the inner side of the supporting plate; the driving shaft is fixedly connected to the output end of the three-phase alternating current motor, and the driving shaft is connected with a transmission shaft through a conveying belt; and the anti-reversion assembly is arranged on the outer side of the supporting plate. According to the anti-reversion device of the belt conveyor, when a machine body is powered off and a three-phase alternating-current motor reverses due to large load inertia, the ratchet wheel at the output end of the three-phase alternating-current motor is synchronously driven to rotate reversely, and when the ratchet wheel rotates reversely, the pawl on the outer side of the ratchet wheel clamps teeth of the ratchet wheel to prevent the ratchet wheel from rotating reversely, so that one-way locking is achieved; and the output end of the three-phase alternating-current motor is prevented from driving the conveying belt to rotate reversely to cause cargo gushing to the tail to block.

Description

TECHNICAL FIELD

[0001] The utility model relates to a belt conveyor technical field, concretely to a belt conveyor anti-reversing device. BACKGROUND

[0002] The belt conveyor is a kind of device using belt conveying, is widely used in mining, metallurgy, chemical industry, building material, electric power, grain and other industries, because the quality of the goods carried is larger, to prevent the reverse situation of the conveying belt, it needs to install anti-reversing device outside the machine body.

[0003] The utility model discloses a kind of for preventing belt conveyor belt reverse automatic clamping device, including reverse sensing mechanism, belt clamping mechanism and electrical control mechanism;Reverse sensing mechanism is used to monitor the direction of belt, once monitoring belt reverse, will send start instruction to electrical control device;Belt clamping mechanism is used to clamp bottom belt in time when belt reverse, quickly, effectively stop belt reverse;Electrical control mechanism is used to start and stop clamping mechanism, and like other control equipment in pit, various protection is complete and sensitive.The device principle of the utility model is simple, design is ingenious, action is sensitive and reliable, stable in operation, realizes the function of automatic monitoring, automatic clamping.

[0004] The device is monitored by reverse sensing mechanism, but this kind of mechanism can only run when power on, once power failure or other emergency situation leads to belt conveyor downtime, reverse inductor cannot monitor belt operation in time, so belt reverse is likely to occur, goods are crowded to tail, cause machine body tail blockage, overload etc.

[0005] In view of the above problems, we make innovative design on the basis of original belt conveyor anti-reversing device structure. UTILITY MODEL CONTENTS

[0006] The utility model is to provide a kind of belt conveyor anti-reversing device, to solve the problem that the mechanism in the above background art can only run when power on, once power failure or other emergency situation leads to belt conveyor downtime, reverse inductor cannot monitor belt operation in time, so belt reverse is likely to occur, goods are crowded to tail, cause machine body tail blockage, overload etc.

[0007] To achieve the above object, the utility model provides following technical scheme: a belt conveyor anti-reverse device, including the base, the both sides of base fixed mounting has the supporting plate, three -phase alternating -current motor, three -phase alternating -current motor fixed mounting in supporting plate outside, and three -phase alternating -current motor output side penetrates supporting plate inside, driving shaft, driving shaft fixed connection in three -phase alternating -current motor output end, and driving shaft is connected with transmission shaft through the conveyor belt, anti -reverse subassembly, anti -reverse subassembly sets up in supporting plate outside, adjustment subassembly, adjustment subassembly sets up in transmission shaft outside, anti -reverse subassembly is used to prevent the conveyor belt reverse, adjustment subassembly is used for adjusting the position of transmission shaft.

[0008] Preferably, the anti-reverse assembly comprises a ratchet wheel, which is fixedly installed on the output end of the three-phase alternating-current motor.

[0009] Preferably, the anti-reverse assembly further comprises a fixing frame, a concentric shaft and a pawl, the fixing frame is fixedly installed on the outer side of the supporting plate, the pawl is rotatably connected to the outer side of the supporting plate through the concentric shaft, and the pawl is engaged with the outer side ratchet wheel.

[0010] Preferably, the anti-reverse assembly further comprises a limiting spring, a traction steel wire rope and a pull ring, the two ends of the limiting spring are respectively connected to the pawl and the outer wall of the fixing frame, the outer side of the pawl is fixedly connected with the traction steel wire rope, the traction steel wire rope penetrates through the inner side of the fixing frame, and the tail end of the traction steel wire rope is fixedly connected with the pull ring.

[0011] Preferably, the adjustment assembly comprises a first through slot, a sliding block and a rotating support, the first through slot is formed in the inner side of the supporting plate, the sliding block is slidably connected to the inner side of the first through slot, the rotating support is fixedly connected to the outer side of the sliding block, the rotating support is symmetrically arranged about the midpoint of the transmission shaft, and the rotating support and the end of the transmission shaft form a rotating structure.

[0012] Preferably, the adjustment assembly further comprises a telescopic spring, the two ends of the telescopic spring are respectively connected to the sliding block and the inner wall of the first through slot.

[0013] Preferably, the adjustment assembly further comprises a second through slot, a threaded hole and a limiting bolt, the second through slot is formed in the inner side of the supporting plate, the threaded hole is formed between the wall between the second through slot and the first through slot, the limiting bolt is threadedly connected to the inner side of the threaded hole, and the tail end of the limiting bolt is correspondingly distributed in front of and behind the sliding block.

[0014] Compared with the prior art, the belt conveyor anti-reverse device has the following advantages:

[0015] 1. Anti-reverse structure, when the machine is powered off and the three-phase AC motor reverses due to large load inertia, the ratchet at the output end of the three-phase AC motor is reversed, when the ratchet is reversed, the pawl on the outside of the ratchet is clamped on the teeth of the ratchet, preventing it from reversing, thereby achieving one-way locking, avoiding the reverse rotation of the conveyor belt driven by the output end of the three-phase AC motor, and causing the goods to surge towards the tail and block;

[0016] Further, when the output end of the three-phase AC motor drives the ratchet to rotate forward, the pawl will slide over the top of the ratchet teeth and will not hinder the movement of the ratchet outside the output end of the three-phase AC motor, and when maintenance is required to reverse the conveyor belt, the traction wire rope can be pulled manually to generate a traction force on the pawl, causing the pawl to compress the limit spring to rotate, at this time, the reverse drive three-phase AC motor can drive the conveyor belt to rotate in reverse, facilitating maintenance personnel to maintain the conveyor;

[0017] 2. Adjustment structure, when the conveyor belt needs to be adjusted for a long time, the limit bolt is rotated to make the limit bolt rotate along the inside of the threaded hole, the tail end of the limit bolt pushes the sliding block to slide along the inside of the first through groove, thereby driving the transmission shaft to move outward through the sliding of the sliding block, stretching the conveyor belt, so that the conveyor belt maintains appropriate tightness, ensuring smooth operation of the conveyor belt, reducing energy loss and improving conveying efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall three-dimensional structure of the utility model;

[0019] Figure 2 is a schematic diagram of the overall bottom view structure of the utility model;

[0020] Figure 3 is a schematic diagram of the three-dimensional structure of the anti-reverse assembly of the utility model;

[0021] Figure 4 is a schematic diagram of the three-dimensional structure of the anti-reverse assembly of the utility model; Figure 2 is a schematic diagram of the enlarged structure at point A in the utility model;

[0022] Figure 5 is a schematic diagram of the exploded structure of the transmission shaft and the rotating support of the utility model;

[0023] Figure 6 is a schematic diagram of the three-dimensional structure of the adjustment assembly of the utility model.

[0024] In the diagram: 1. Base; 2. Support plate; 3. Three-phase AC motor; 4. Drive shaft; 5. Transmission shaft; 6. Conveyor belt; 7. Anti-reverse assembly; 701. Ratchet; 702. Fixing frame; 703. Concentric shaft; 704. Pawl; 705. Limit spring; 706. Traction wire rope; 707. Pull ring; 8. Adjustment assembly; 801. First through slot; 802. Sliding block; 803. Rotary support; 804. Telescopic spring; 805. Second through slot; 806. Threaded hole; 807. Limit bolt. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-6 This utility model provides a technical solution: an anti-reverse device for a belt conveyor, comprising:

[0027] Example 1: As Figures 1-4 The present invention provides a technical solution: an anti-reverse device for a belt conveyor, comprising: a base 1, with support plates 2 fixedly installed on the left and right sides of the base 1; a three-phase AC motor 3, fixedly installed on the outside of the support plates 2, with the output end of the three-phase AC motor 3 penetrating through the inside of the support plates 2; a drive shaft 4, fixedly connected to the output end of the three-phase AC motor 3, and connected to a transmission shaft 5 via a conveyor belt 6; an anti-reverse component 7, disposed on the outside of the support plates 2; and an adjusting component 8, disposed on the outside of the transmission shaft 5. The anti-reverse component 7 is used to prevent the conveyor belt 6 from reversing; the adjusting component 8 is used to adjust the position of the transmission shaft 5.

[0028] The anti-reverse component 7 includes a ratchet 701, which is fixedly installed at the output end of the three-phase AC motor 3; the anti-reverse component 7 also includes a fixing frame 702, a concentric shaft 703, and a pawl 704. The fixing frame 702 is fixedly installed on the outside of the support plate 2, and the pawl 704 is rotatably connected to the outside of the support plate 2 through the concentric shaft 703, and the pawl 704 is engaged with the outer ratchet 701; the anti-reverse component 7 also includes a limit spring 705, a traction steel wire rope 706, and a pull ring 707. The two ends of the limit spring 705 are respectively connected to the pawl 704 and the outer wall of the fixing frame 702, and the traction steel wire rope 706 is fixedly connected to the outside of the pawl 704. The traction steel wire rope 706 passes through the inside of the fixing frame 702, and the pull ring 707 is fixedly connected to the tail end of the traction steel wire rope 706.

[0029] When the machine experiences a power outage and the three-phase AC motor 3 reverses due to its large load inertia, this structure will synchronously drive the ratchet 701 at the output end of the three-phase AC motor 3 to reverse. When the ratchet 701 reverses, its outer pawl 704 will lock the teeth of the ratchet 701, preventing it from reversing, thus achieving one-way locking. This prevents the output end of the three-phase AC motor 3 from driving the conveyor belt 6 to reverse, causing goods to rush to the tail and cause blockage. When the output end of the three-phase AC motor 3 drives the ratchet 701 to rotate in the forward direction, the pawl 704 will slide over the tooth top of the ratchet 701 and will not obstruct the movement of the ratchet 701 on the outer side of the output end of the three-phase AC motor 3. When maintenance requires the conveyor belt 6 to be rotated in the reverse direction, the pull ring 707 can be manually pulled to make the traction steel wire rope 706 generate traction force on the pawl 704, causing the pawl 704 to compress the limit spring 705 and rotate. At this time, the reverse drive of the three-phase AC motor 3 can drive the conveyor belt 6 to rotate in the reverse direction, which is convenient for maintenance personnel to maintain the conveyor.

[0030] Example 2: Figures 1-2 , Figures 5-6 The present invention provides a technical solution: an anti-reverse device for a belt conveyor, which discloses that: the adjusting component 8 includes a first through groove 801, a sliding block 802, and a rotating support 803. The first through groove 801 is opened on the inner side of the support plate 2, and the sliding block 802 is slidably connected to the inner side of the first through groove 801. The rotating support 803 is fixedly connected to the outer side of the sliding block 802, and two sets of rotating supports 803 are symmetrically arranged about the midpoint of the drive shaft 5. The rotating supports 803 and the end of the drive shaft 5 form a rotating structure. The adjusting assembly 8 also includes a telescopic spring 804, with both ends of the telescopic spring 804 connected to the sliding block 802 and the inner wall of the first through groove 801, respectively. The adjusting assembly 8 also includes a second through groove 805, a threaded hole 806, and a limiting bolt 807. The second through groove 805 is opened on the inner side of the support plate 2, and a threaded hole 806 is opened between the wall of the second through groove 805 and the first through groove 801. The limiting bolt 807 is threadedly connected to the inner side of the threaded hole 806, and the tail end of the limiting bolt 807 is distributed in a front-to-back correspondence with the sliding block 802.

[0031] When the tension of the conveyor belt 6 needs to be adjusted after long-term use, the limiting bolt 807 can be rotated to rotate along the inner side of the threaded hole 806. This causes the tail end of the limiting bolt 807 to push the sliding block 802 to slide along the inner side of the first through groove 801. The sliding of the sliding block 802 drives the drive shaft 5 to move outward, stretching the conveyor belt 6 and maintaining an appropriate tension. This ensures the smooth operation of the conveyor belt 6, reduces energy loss, and improves conveying efficiency.

[0032] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A belt conveyor anti-reverse device, characterized in that, Also includes: The base (1) has support plates (2) fixedly installed on the left and right sides of the base (1); The three-phase AC motor (3) is fixedly installed on the outside of the support plate (2), and the output end of the three-phase AC motor (3) passes through the inside of the support plate (2); The drive shaft (4) is fixedly connected to the output end of the three-phase AC motor (3), and the drive shaft (4) is connected to the transmission shaft (5) via the conveyor belt (6). Anti-reverse component (7), the anti-reverse component (7) is disposed on the outside of the support plate (2); Adjustment component (8), the adjustment component (8) is disposed outside the drive shaft (5); The anti-reverse component (7) is used to prevent the conveyor belt (6) from reversing; The adjustment component (8) is used to adjust the position of the drive shaft (5).

2. The anti-reverse device for a belt conveyor according to claim 1, characterized in that: The anti-reverse component (7) includes a ratchet (701), which is fixedly installed at the output end of the three-phase AC motor (3).

3. The anti-reverse device for a belt conveyor according to claim 2, characterized in that: The anti-reverse assembly (7) also includes a fixing frame (702), a concentric shaft (703) and a pawl (704). The fixing frame (702) is fixedly installed on the outside of the support plate (2). The pawl (704) is rotatably connected to the outside of the support plate (2) through the concentric shaft (703), and the pawl (704) engages with the outer ratchet (701).

4. The anti-reverse device for a belt conveyor according to claim 3, characterized in that: The anti-reverse assembly (7) also includes a limiting spring (705), a traction steel wire rope (706), and a pull ring (707). The two ends of the limiting spring (705) are respectively connected to the pawl (704) and the outer wall of the fixing frame (702), and the traction steel wire rope (706) is fixedly connected to the outside of the pawl (704). The traction steel wire rope (706) passes through the inside of the fixing frame (702), and the pull ring (707) is fixedly connected to the tail end of the traction steel wire rope (706).

5. The anti-reverse device for a belt conveyor according to claim 1, characterized in that: The adjustment component (8) includes a first through groove (801), a sliding block (802) and a rotating support (803). The first through groove (801) is opened on the inner side of the support plate (2), and the sliding block (802) is slidably connected to the inner side of the first through groove (801). The rotating support (803) is fixedly connected to the outer side of the sliding block (802), and two sets of rotating supports (803) are arranged symmetrically about the midpoint of the transmission shaft (5). The rotating support (803) and the end of the transmission shaft (5) form a rotating structure.

6. The anti-reverse device for a belt conveyor according to claim 5, characterized in that: The adjustment assembly (8) also includes a telescopic spring (804), the two ends of which are connected to the sliding block (802) and the inner wall of the first through groove (801), respectively.

7. The anti-reverse rotation device for a belt conveyor according to claim 6, characterized in that: The adjustment assembly (8) further includes a second through groove (805), a threaded hole (806), and a limiting bolt (807). The second through groove (805) is opened on the inner side of the support plate (2), and a threaded hole (806) is opened between the wall between the second through groove (805) and the first through groove (801). The limiting bolt (807) is threadedly connected to the inner side of the threaded hole (806), and the tail end of the limiting bolt (807) is distributed in a front-to-back correspondence with the sliding block (802).

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