Backstop for permanent magnet roller

Abstract

The utility model discloses a backstop for a permanent magnet roller, which comprises two fixed tables, rolling bearings are mounted on the inner side surfaces of the fixed tables, a permanent magnet roller body is arranged between the two fixed tables, a detection mechanism is mounted on each fixed table, and a backstop mechanism is mounted on each fixed table. The detection mechanism comprises an infrared emitter, an infrared receiver and a containing frame; the non-return mechanism comprises a limiting table, a moving frame and an intercepting table. The utility model has the beneficial effects that the infrared emitter and the infrared detector can detect whether the permanent magnetic roller rotates reversely or not, so that when the permanent magnetic roller rotates forwards, no extra friction is generated, and the intercepting table and the limiting table are not contacted at the moment, thereby reducing the generation of noise and heat, prolonging the service life and reducing the production cost. When the permanent magnetic roller reverses, the intercepting table can be driven by the moving frame to move to the front side of the limiting table, so that the limiting table and the permanent magnetic roller can be blocked, and the permanent magnetic roller is prevented from reversing.

Description

TECHNICAL FIELD

[0001] The utility model relates to permanent magnet roller equipment technical field more specifically, relate to a kind of backstop for permanent magnet roller. BACKGROUND

[0002] Permanent magnet roller backstop is a kind of mechanical device for preventing equipment reverse rotation, combined with permanent magnet technology and backstop structure, widely used in the conveying system of mining, metallurgy, coal and other fields.

[0003] In prior art, for example, patent number CN202223135666.7, patent name is a kind of permanent magnet roller backstop, when permanent magnet roller appears reverse rotation and drives the rotation of shaft one, the groove two of the outer side of shaft one is connected with swing bar, swing bar is connected with the inside of movable slot at this time, in turn, shaft two is driven to anticlockwise rotation, when the centrifugal force of special-shaped block is greater than the traction force of traction spring, at this time, special-shaped block will move towards the direction of groove one and be connected with groove one, at this time, shaft two will stop rotating quickly, in turn, it can prevent permanent magnet roller reverse, but there are some problems in use, when permanent magnet roller is forward rotation, special-shaped block is repeatedly rubbed and compressed, in turn, it is easy to make special-shaped block heat deformation, under long-term use, it can affect the use of permanent magnet roller. UTILITY MODEL CONTENT

[0004] The utility model aims at solving above-mentioned problem, design a kind of backstop for permanent magnet roller.

[0005] The technical scheme of the utility model for realizing the above-mentioned purpose is a kind of backstop for permanent magnet roller, including two fixed platforms, the inside surface of fixed platform is equipped with rolling bearing, two the fixed platform between is equipped with permanent magnet roller body, the both ends of permanent magnet roller body are stretched into rolling bearing, detection mechanism is installed on the fixed platform, backstop mechanism is installed on the fixed platform;

[0006] The detection mechanism includes infrared emitter installed at the both ends of permanent magnet roller body, the emission end of infrared emitter cannot be installed at the axial position of permanent magnet roller body, a plurality of infrared receivers are arranged on the side of infrared emitter, the inside of rolling bearing is equipped with containing rack, the containing rack is installed on the fixed platform, the infrared receiver is installed on the containing rack, and a plurality of the infrared receivers are evenly distributed in a circle with the axial position of permanent magnet roller body as the center.

[0007] The backstop mechanism includes a plurality of limiting platforms installed on the both sides of permanent magnet roller body, the inside of fixed platform is equipped with moving rack, a plurality of intercepting platforms are installed on one end of moving rack, the moving rack can push the intercepting platform to one side of limiting platform.

[0008] Further, the fixed table is provided with a first circular groove on one side, a second circular groove is formed in the inner side of the first circular groove, the second circular groove is connected with the inner side of the rolling bearing, the containing frame comprises a fixed plate which is installed in the inner side of the first circular groove, a containing plate is arranged on one side of the fixed plate, the infrared receiver is installed on the containing plate, the containing plate extends to the inner side of the rolling bearing, the fixed plate and the containing plate are connected through a plurality of fixing rods, a plurality of wiring holes are formed in the fixed plate and the containing plate, and a sealing plate is connected to the outer side of the first circular groove through bolts.

[0009] Further, the fixed table is provided with a first circular groove on one side, a second circular groove is formed in the inner side of the first circular groove, the second circular groove is connected with the inner side of the rolling bearing, the containing frame comprises a fixed plate which is installed in the inner side of the first circular groove, a containing plate is arranged on one side of the fixed plate, the infrared receiver is installed on the containing plate, the containing plate extends to the inner side of the rolling bearing, the fixed plate and the containing plate are connected through a plurality of fixing rods, a plurality of wiring holes are formed in the fixed plate and the containing plate, and a sealing plate is connected to the outer side of the first circular groove through bolts.

[0010] Further, the moving frame comprises a circular ring plate which is sleeved on one side of the permanent magnetic cylinder body, the circular ring plate is installed on the fixed table through a plurality of electric telescopic rods, a plurality of guide holes are formed in the circular ring plate, guide rods are arranged in the guide holes, one end of the guide rod is installed on the fixed table, and the intercepting table is installed on the circular ring plate.

[0011] Further, the intercepting table comprises a supporting table which is installed on the circular ring plate, a square groove is formed in the supporting table, a telescopic block is arranged in the square groove, and the telescopic block and the inner side surface of the square groove are connected through a plurality of connecting springs.

[0012] The infrared transmitter and the infrared detector can detect whether the permanent magnetic cylinder reverses, so that additional friction is not generated when the permanent magnetic cylinder rotates in a normal direction, and the intercepting table and the limiting table do not contact at this time, noise and heat generation are reduced, and the service life is prolonged.

[0013] The infrared transmitter and the infrared receiver are installed in the inner side of the rolling bearing, so that the influence of external dust on signal transmission is reduced.

[0014] The infrared receiver can be turned off through the control switch, so that the permanent magnetic cylinder is not intercepted when automatic reversal is not needed, and use is more convenient.

[0015] The telescopic block is arranged on the intercepting table, so that the telescopic block and the limiting table are prevented from colliding. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structure schematic view of the permanent magnetic cylinder stopper.

[0017] Figure 2 is Figure 1 is a partial enlarged view of A in the figure;

[0018] Figure 3 is Figure 1 is a partial enlarged view of B in the figure;

[0019] Figure 4 is a distribution schematic diagram of the infrared receiver on the containing plate;

[0020] In the figure, 1, fixed table; 2, rolling bearing; 3, permanent magnet roller body; 4, infrared emitter; 5, infrared receiver; 6, containing frame; 7, limiting table; 8, moving frame; 9, intercepting table; 10, first circular groove; 11, second circular groove; 12, fixed plate; 13, containing plate; 14, fixed rod; 15, wiring hole; 16, sealing plate; 17, control switch; 18, circular ring plate; 19, electric telescopic rod; 20, guide hole; 21, guide rod; 22, supporting table; 23, square groove; 24, telescopic block; 25, connecting spring. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely explained in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the protection scope of the utility model.

[0022] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, in the description of the utility model, the meaning of "a plurality of" is two or more than two, unless otherwise explicitly and specifically limited.

[0023] The utility model provides a kind of Figures 1-4The shown one kind is for permanent magnet cylinder backstop, including two fixed platform 1, the inner surface of fixed platform 1 is equipped with rolling bearing 2, two fixed platform 1 between being equipped with permanent magnet cylinder body 3, permanent magnet cylinder body 3 both ends reach the inside of rolling bearing 2, fixed platform 1 is equipped with detection mechanism, fixed platform 1 is equipped with backstop mechanism;Detection mechanism includes the infrared emitter 4 of being installed at permanent magnet cylinder body 3 both ends, the emission end of infrared emitter 4 can not be installed at the axle position of permanent magnet cylinder body 3, infrared emitter 4 one side is equipped with multiple infrared receivers 5, the inside of rolling bearing 2 is equipped with holding frame 6, holding frame 6 is installed on fixed platform 1, infrared receiver 5 is installed on holding frame 6, multiple infrared receivers 5 with the axle position of permanent magnet cylinder body 3 as center is evenly distributed in a circle;Backstop mechanism includes multiple limit platforms 7 of being installed at the both sides of permanent magnet cylinder body 3, the inside of fixed platform 1 is equipped with moving frame 8, moving frame 8 one end is equipped with multiple intercepting platforms 9, moving frame 8 can drive intercepting platform 9 to the side of limit platform 7;

[0024] The device prevents the process of permanent magnet cylinder reverse as follows: normal state, moving frame 8 moves intercepting platform 9 to the outside of limit platform 7, when permanent magnet cylinder body 3 positive rotation and drives limit platform 7 to rotate, intercepting platform 9 will not limit limit platform 7, when permanent magnet cylinder body 3 positive rotation, can drive infrared emitter 4 to rotate, the infrared signal of infrared emitter 4 can be received by multiple infrared receivers 5 according to certain order, when permanent magnet cylinder body 3 reverses, can judge permanent magnet cylinder body 3 has reversed according to the position of infrared receiver 5 signal reception, at this time, intercepting platform 9 can be driven to the side of limit platform 7 by moving frame 8, and limit platform 7 is intercepted by intercepting platform 9, can prevent permanent magnet cylinder body 3 reverse, infrared emitter 4 and infrared receiver 5 are installed in the inside of rolling bearing 2, can prevent the dust in external environment from affecting infrared signal.

[0025] Refer to the description attached Figure 1 and the description attached Figure 3, the fixed platform 1 one side is provided with a first circular groove 10, the first circular groove 10 inner side is provided with a second circular groove 11, the second circular groove 11 and the rolling bearing 2 inner side are connected, the containing frame 6 includes the fixed plate 12 installed in the first circular groove 10 inner side, the fixed plate 12 one side is equipped with the containing plate 13, the infrared receiver 5 is installed on the containing plate 13, the containing plate 13 stretches to the rolling bearing 2 inner side, the fixed plate 12 and the containing plate 13 are connected through multiple fixed rods 14, the fixed plate 12 and the containing plate 13 are provided with wiring holes 15, the first circular groove 10 outer side is connected with the sealing plate 16 through bolt, the fixed plate 12 is installed in the first circular groove 10 inner side through bolt, the containing plate 13 stretches to the second circular groove 11 inner side, further can be convenient for the infrared receiver 5 to be maintained and replaced, the wiring hole 15 can be convenient for connecting the wire, the sealing plate 16 can seal the first circular groove 10, can reduce the dust into.

[0026] Referring to the drawings Figure 1 , the fixed platform 1 upper end is installed with the control switch 17 of controlling the infrared receiver 5 start and shutdown, through the control switch 17 can open and close the infrared receiver 5, further can when needing to reverse the permanent magnet cylinder body 3, will not cause the obstruction to it.

[0027] Referring to the drawings Figure 1 , the drawings Figure 2 and the drawings Figure 3 , the moving frame 8 includes the circular ring plate 18 sleeved on the one side of the permanent magnet cylinder body 3, the circular ring plate 18 is installed on the fixed platform 1 through multiple electric telescopic rods 19, the circular ring plate 18 is provided with multiple guide holes 20, the guide hole 20 is equipped with the guide rod 21, the guide rod 21 one end is installed on the fixed platform 1, the intercepting platform 9 is installed on the circular ring plate 18;

[0028] The moving process of the moving frame 8 driven intercepting platform 9 is as follows: after receiving the signal, the electric telescopic rod 19 is started to lengthen, can drive the circular ring plate 18 to lengthen, through the guide hole 20 and the guide rod 21 can guarantee the moving direction of the circular ring plate 18, when the circular ring plate 18 moves, the intercepting platform 9 can be moved to the one side of the limiting platform 7, further can be convenient for limiting the limiting platform 7, prevent the permanent magnet cylinder body 3 from reversing, the electric telescopic rod 19 is started to shorten, can drive the circular ring plate 18 and the intercepting platform 9 to move to the outer side of the limiting platform 7, further can not cause the obstruction to the rotation of the permanent magnet cylinder body 3.

[0029] Referring to the drawings Figure 1 and the drawings Figure 2When the intercepting table 9 moves towards the limiting table 7, if the telescopic block 24 is not in front of the limiting table 7, the telescopic block 24 can move to the side of the limiting table 7 and intercept the permanent magnetic cylinder body 3 when the permanent magnetic cylinder body 3 reverses; if the telescopic block 24 is in front of the limiting table 7, the telescopic block 24 can be compressed into the square recess 23 after contacting the limiting table 7, and the connecting spring 25 can be compressed, when the limiting table 7 reaches the side of the telescopic block 24, the telescopic block 24 can be pushed to the side of the limiting table 7 under the elastic force of the connecting spring 25, the limiting table 7 can be intercepted, and the permanent magnetic cylinder body 3 can be prevented from reversing.

[0030] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced equivalently, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A backstop for a permanent magnet roller, comprising two fixed platforms (1), wherein rolling bearings (2) are mounted on the inner surface of the fixed platforms (1), and a permanent magnet roller body (3) is disposed between the two fixed platforms (1), wherein both ends of the permanent magnet roller body (3) extend into the rolling bearings (2), characterized in that, A detection mechanism is installed on the fixed platform (1), and a backstop mechanism is installed on the fixed platform (1); The detection mechanism includes infrared emitters (4) installed at both ends of the permanent magnet drum body (3). The emitting end of the infrared emitter (4) cannot be installed at the axial position of the permanent magnet drum body (3). Multiple infrared receivers (5) are provided on one side of the infrared emitter (4). A holding rack (6) is provided inside the rolling bearing (2). The holding rack (6) is installed on the fixed platform (1). The infrared receivers (5) are installed on the holding rack (6). The multiple infrared receivers (5) are evenly distributed in a circle around the axial position of the permanent magnet drum body (3). The backstop mechanism includes multiple limiting platforms (7) installed on both sides of the permanent magnet drum body (3). A movable frame (8) is provided inside the fixed platform (1). Multiple intercepting platforms (9) are installed at one end of the movable frame (8). The movable frame (8) can push the intercepting platform (9) to one side of the limiting platform (7).

2. The backstop for a permanent magnet drum according to claim 1, characterized in that, The fixed platform (1) has a first circular groove (10) on one side, and a second circular groove (11) is opened inside the first circular groove (10). The second circular groove (11) is connected to the inner side of the rolling bearing (2). The holding rack (6) includes a fixed plate (12) installed inside the first circular groove (10). A holding plate (13) is provided on one side of the fixed plate (12). The infrared receiver (5) is installed on the holding plate (13). The holding plate (13) extends to the inner side of the rolling bearing (2). The fixed plate (12) and the holding plate (13) are connected by multiple fixed rods (14). Wiring holes (15) are opened on the fixed plate (12) and the holding plate (13). A sealing plate (16) is bolted to the outside of the first circular groove (10).

3. A backstop for a permanent magnet drum according to claim 2, characterized in that, The upper end of the fixed platform (1) is equipped with a control switch (17) for controlling the start and stop of the infrared receiver (5).

4. A backstop for a permanent magnet drum according to claim 1, characterized in that, The movable frame (8) includes a ring plate (18) fitted on one side of the permanent magnet drum body (3). The ring plate (18) is mounted on the fixed platform (1) by multiple electric telescopic rods (19). The ring plate (18) has multiple guide holes (20). A guide rod (21) is provided in the guide hole (20). One end of the guide rod (21) is mounted on the fixed platform (1). The intercepting platform (9) is mounted on the ring plate (18).

5. A backstop for a permanent magnet drum according to claim 4, characterized in that, The interceptor (9) includes a support platform (22) mounted on a circular plate (18). The support platform (22) has a square groove (23) and a telescopic block (24) is provided inside the square groove (23). The telescopic block (24) and the inner surface of the square groove (23) are connected by multiple connecting springs (25).

Images