阅读说明：本技术 一种带式输送机用防打滑测速和物料流检测装置 (Anti-slip speed measurement and material flow detection device for belt conveyor ) 是由 张晓� 俞进新 施惠娟 李洪彬 于 2021-01-22 设计创作，主要内容包括：本发明涉及一种带式输送机用防打滑测速和物料流检测装置,包括对称设置在带式输送机的中间架上,并设于两组槽型托辊支架之间的底座,设于底座上的滑移支架,设于两组滑移支架上的测速托辊和传感器,以及与传感器连接的控制系统,所述测速托辊的筒体的一端端面上套设测速盘,所述测速盘的圆周上设有圆孔,所述圆孔与传感器所在位置对应设置,当装置进行防打滑测速时,所述测速托辊与输送带接触,当装置进行物料流检测时,所述测速托辊通过滑移支架的移动与输送带承载的底面输送带之间保持一定距离。与现有技术相比,本发明具有显著降低生产成本、维护检修成本,结构简单、可靠性高等优点。(The invention relates to an anti-slip speed measurement and material flow detection device for a belt conveyor, which comprises a base, a sliding support, speed measurement carrier rollers, sensors and a control system, wherein the base is symmetrically arranged on an intermediate frame of the belt conveyor and is arranged between two groups of groove-shaped carrier roller supports, the sliding support is arranged on the base, the speed measurement carrier rollers and the sensors are arranged on the two groups of sliding support, the control system is connected with the sensors, a speed measurement disc is sleeved on the end surface of one end of a cylinder body of each speed measurement carrier roller, circular holes are formed in the circumference of the speed measurement disc and are arranged corresponding to the positions of the sensors, when the device performs anti-slip speed measurement, the speed measurement carrier rollers are in contact with a conveying belt, and when the device performs material flow detection, the speed. Compared with the prior art, the invention has the advantages of obviously reducing the production cost, maintaining and overhauling cost, simple structure, high reliability and the like.)

1. An anti-slip speed measurement and material flow detection device for a belt conveyor, wherein the belt conveyor comprises an intermediate frame (3), groove-shaped carrier roller brackets (2) arranged on the intermediate frame (3) and used for supporting a conveyor belt (1), and is characterized by comprising a base (4) symmetrically arranged on the intermediate frame (3) of the belt conveyor and arranged between two groups of groove-shaped carrier roller brackets (2), a sliding bracket (9) arranged on the base (4), speed measurement carrier rollers (5) and sensors (7) arranged on the two groups of sliding brackets (9), and a control system connected with the sensors (7), wherein a speed measurement disc (6) is sleeved on one end face of a cylinder body of the speed measurement carrier roller (5), a circular hole (601) is arranged on the circumference of the speed measurement disc (6), the circular hole (601) is arranged corresponding to the position of the sensors (7), when the device is used for anti-slip speed measurement, the speed measuring carrier roller (5) is in contact with the conveying belt (1), and when the device is used for material flow detection, a certain distance is kept between the speed measuring carrier roller (5) and the bottom conveying belt borne by the conveying belt (1) through the movement of the sliding support (9).

2. The anti-slip speed measurement and material flow detection device for the belt conveyor as claimed in claim 1, wherein the speed measurement disc (6) is sleeved on the cylinder of the speed measurement carrier roller (5) through a fastening screw and is close to one end face of the cylinder of the speed measurement carrier roller (5).

3. The anti-slip speed measurement and material flow detection device for the belt conveyor as claimed in claim 2, wherein the distance between the disc surface of the speed measurement disc (6) and the end surface of one end of the cylinder of the speed measurement carrier roller (5) is 5-10 mm.

4. The anti-slip speed measurement and material flow detection device for the belt conveyor as claimed in claim 1, wherein the slipping bracket (9) is provided with a through hole (903) connected with the base (4), and a first mounting hole and a second mounting hole for mounting the speed measurement carrier roller (5) and the sensor (7), and the shaft head of the speed measurement carrier roller (5) is mounted in the first mounting hole.

5. The anti-slip speed measurement and material flow detection device for the belt conveyor as claimed in claim 4, wherein the base (4) is provided with a sliding support adjusting hole (401) matched with the shape of the through hole (903), and the length of the sliding support adjusting hole is greater than that of the through hole (903).

6. The anti-slip speed measurement and material flow detection device for the belt conveyor as claimed in claim 1, wherein a distance is provided between the outer end surface of the sensing head of the sensor (7) and the surface of the speed measurement disc (6).

7. The anti-slip speed measurement and material flow detection device for the belt conveyor as claimed in claim 6, wherein the distance between the outer end face of the sensing head of the sensor (7) and the surface of the speed measurement disc (6) is 5-10 mm.

8. The device for preventing speed measurement and material flow during slippage for belt conveyor as claimed in claim 5, wherein said adjusting holes (401) of said sliding support are elongated holes.

9. The anti-slip speed measurement and material flow detection device for the belt conveyor as claimed in claim 4, wherein the set position of the second mounting hole corresponds to the set position of the circular hole (601) on the speed measurement disc (6).

10. The device for preventing speed measurement and material flow during slipping of the belt conveyor according to claim 9, characterized in that the slipping bracket (9) comprises a vertical bracket (902) and a horizontal mounting plate (901), the horizontal mounting plate (901) is provided with a through hole (903), and the vertical bracket (902) is provided with a first mounting hole and a second mounting hole.

Technical Field

The invention relates to the technical field of belt conveyors, in particular to an anti-slip and material flow detection device for a belt conveyor.

Background

Belt conveyors are common equipment for material handling that carry and convey material through a moving conveyor belt and to a designated location. However, the conveyer is required to be provided with a conveyer belt speed measuring device for detecting whether the conveyer belt runs at the designed speed, if the running speed of the conveyer belt is abnormal, usually less than the specified speed, the abnormal state of the belt conveyer is shown, for example: the conveyer belt fracture or conveyer belt phenomenon of skidding appear unusually to drive arrangement, cause drive power can't transmit drive drum and drive the conveyer belt operation, consequently prevent that the conveyer belt speed sensor that skids is a very important protection device.

The existing speed measuring device for preventing the sliding of the conveying belt is used for detecting the running of the conveying belt by contacting a return belt conveyor of the conveyor through a special roller, or a detection device is arranged on the side surface of a turnabout drum of the belt conveyor, and the like. These methods all have significant drawbacks: the return belt detection method often causes inaccurate detection devices and false alarm due to foreign matters or materials on the return belt; in addition, the diameter of the roller is reduced when the roller is abraded, the measured numerical value is increased, and manual continuous adjustment is needed. And the side mode of the direction-changing drum is often influenced and interfered by a detection device due to field material accumulation, and even the detection device is easily damaged, and the defects that rotating equipment needs to be maintained, maintained and lubricated frequently exist.

When the conveyer belt starts to operate, materials do not exist on the conveyer belt, when the materials fall on the conveyer belt, the conveyer belt conveys the materials to a designated place, at the moment, whether the materials exist on the conveyer belt or not needs to be detected, namely, whether the conveyer belt is in an idle load state or a heavy load state, and in addition, the condition that a multi-stage conveyer is provided can also reflect which conveyer the materials arrive on, namely, a special material flow detection device is arranged on the belt conveyer. The material flow detection device commonly used nowadays is directly arranged above a bearing belt, materials are detected through a detection rod, when the materials appear on the conveying belt, the piled materials touch the detection rod, so that the detection rod rotates, and then a material flow signal is generated. Another method is to detect the sinking of the conveyer belt during heavy load, and the conveyer belt touches a special roller to drive the roller to rotate, so as to generate a signal of the heavy load of the conveyer belt. The two methods are common methods for detecting material flow of the belt conveyor at present, however, the methods also have the defects of poor reliability and frequent manual adjustment; in addition, the roller is easy to hook in the crack when the crack appears on the conveyer belt, so that the conveyer belt and the detection device are damaged.

The device for preventing the conveyer belt from slipping and detecting the material flow on the belt conveyer is two different protection devices, and mechanical parts in practical application are different, so that two different spare parts are needed during maintenance, and the maintenance and overhaul cost is greatly improved.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide the anti-slip and material flow detection device for the belt conveyor, which can better feed back the occurrence of the slip phenomenon of the conveying belt of the belt conveyor and accurately measure the material flow on the conveying belt, does not need to additionally manufacture special parts, and has the advantages of strong reliability, long service life, no maintenance, no special spare part purchasing and the like.

The purpose of the invention can be realized by the following technical scheme:

an anti-slip speed measurement and material flow detection device for a belt conveyor, the belt conveyor comprises an intermediate frame and a groove-shaped carrier roller bracket which is arranged on the intermediate frame and used for supporting a conveying belt, it is characterized in that the device comprises a base, a sliding support, a speed measuring carrier roller and a sensor, wherein the base is symmetrically arranged on a middle frame of the belt conveyor and is arranged between two groups of groove-shaped carrier roller supports, the sliding support is arranged on the base, the speed measuring carrier roller and the sensor are arranged on the two groups of sliding support, and a control system connected with the sensor, a speed measuring disc is sleeved on the end surface of one end of the cylinder body of the speed measuring carrier roller, round holes are arranged on the circumference of the speed measuring disk, the round holes are arranged corresponding to the positions of the sensors, when the device is used for anti-slip speed measurement, the speed measurement carrier roller is in contact with the conveying belt, when the device is used for material flow detection, the speed measuring carrier roller keeps a certain distance from the bottom conveying belt borne by the conveying belt through the movement of the sliding support.

The speed measuring disc is sleeved on the cylinder of the speed measuring carrier roller through a fastening screw and is close to one end face of the cylinder of the speed measuring carrier roller.

The distance between the disc surface of the speed measuring disc and the end face of one end of the cylinder of the speed measuring carrier roller is 5-10 mm.

The sliding support is provided with a through hole connected with the base, a first mounting hole and a second mounting hole, the first mounting hole and the second mounting hole are used for mounting the speed measuring carrier roller and the sensor, and a shaft head of the speed measuring carrier roller is mounted in the first mounting hole.

The base is provided with a sliding support adjusting hole matched with the through hole in shape, and the length of the sliding support adjusting hole is larger than that of the through hole.

A certain distance is arranged between the outer end face of the sensing head of the sensor and the surface of the speed measuring disc.

Further, the distance between the outer end face of the sensing head of the sensor and the surface of the speed measuring disc is 5-10 mm.

The sliding support adjusting hole is a strip-shaped hole.

The set position of the second mounting hole corresponds to the set position of the round hole in the speed measuring disc.

The sliding support comprises a vertical support and a horizontal mounting plate, a through hole is formed in the horizontal mounting plate, and a first mounting hole and a second mounting hole are formed in the vertical support.

Compared with the prior art, the anti-slip and material flow detection device for the belt conveyor at least has the following beneficial effects:

1) the device is arranged on the middle frame of the belt conveyor, and the middle of the two groups of groove-shaped carrier roller supports can be used as a conveyor belt anti-slip protection device and also can be used as a material detection device for detecting whether materials exist on the conveyor belt when the belt conveyor runs;

2) the speed measuring carrier roller of the rotating part in the device adopts a common return belt horizontal carrier roller arranged on a conveyor, so that the service life is long, the replacement is easy, the daily maintenance is not needed, special spare parts are not needed, only a carrier roller with the same specification is needed to be replaced if the carrier roller is damaged, the speed measuring disc rotates but has no relative friction with other parts, so that the abrasion is avoided, the other parts are fixed and fixed once the adjustment is finished, the speed measuring carrier roller is in contact with the lower surface of the bearing belt, the lower surface is relatively clean, the possibility of the contact of the speed measuring carrier roller with materials or other foreign matters is much lower than that of the lower return belt, the reliability of the work is higher, and the whole set of mechanical structure has the characteristics of simple structure and maintenance-free property, and the operation cost can.

3) Through the shift position of support on the base that slides, the distance between adjustable speed bearing roller and the conveyer belt can realize if there is a small amount of material flows on the conveyer belt, drives the effect through the conveyer belt and tests the speed bearing roller and rotate and carry out the phenomenon of skidding and detect or material flow detection function, easy and simple to handle, efficient.

4) The function of measuring the speed or detecting the material flow can be conveniently realized only through the mobile position of the sliding support on the base, compared with the prior art, the device does not need a large amount of manual adjustment, and the operation amount can be greatly reduced.

Drawings

FIG. 1 is a schematic view showing a mounting structure of an anti-slip and material flow detecting device for a belt conveyor according to an embodiment of the present invention;

FIG. 2 is a schematic top view showing a mounting structure of the slippage preventing and material flow detecting apparatus for a belt conveyor in the embodiment;

FIG. 3 is a schematic view of a side view of the connection relationship of a speed measuring carrier roller, a sensor, a sliding support and a base of the anti-slip material flow detection device for the belt conveyor in the embodiment;

FIG. 4 is a schematic top view showing the connection among a speed measuring carrier roller, a sensor, a sliding support and a base of the anti-slip material flow detection device for the belt conveyor in the embodiment;

the reference numbers in the figures indicate:

1. conveyer belt, 2, cell type bearing roller support, 3, middle frame, 4, base, 5, the bearing roller that tests the speed, 6, test the speed dish, 7, sensor, 8, fixing bolt, 9, the support that slides, 401, the support regulation hole that slides, 601, round hole, 901, horizontal mounting panel, 902, vertical support, 903, through-hole.

Detailed Description

The invention is described in detail below with reference to the figures and specific embodiments. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.

Examples

The invention relates to a skid-proof and material flow detection device for a belt conveyor, which is arranged on a middle frame 3 of the belt conveyor, and is driven to rotate by the friction force of a conveying belt 1 after a speed measuring carrier roller 5 is contacted with the bottom surface of an upper rubber belt of the conveying belt 1 so as to feed back a rotating signal.

The device includes bearing roller 5 that tests the speed, tests the speed dish 6, slip support 9, base 4, sensor 7 and control system. The sliding support 9 is arranged on the base 4, the base 4 is symmetrically arranged on the middle frames 3 at two sides of the belt conveyor and is arranged between the two groups of groove-shaped carrier roller supports 2. The speed measuring carrier roller 5 used by the device is a horizontal carrier roller with the same specification and model on a belt conveyor, the speed measuring carrier roller 5 is installed on a sliding support 9, and a shaft head of the speed measuring carrier roller 5 is inserted into a corresponding hole on the sliding support 9. The sensor 7 is likewise mounted on the sliding carriage 9. The sensor 7 is connected with a control system, and the control system is used for acquiring a sensing signal of the sensor 7.

The disk 6 tests the speed is the disc type structure, its center is equipped with circular through-hole, the diameter of circular through-hole is the same with the external diameter size who tests the speed bearing roller 5, it wears out from circular through-hole to test the speed bearing roller 5, and test the speed the disk 6 and establish the installation through the fastening screw cover and fix on the barrel of bearing roller 5 tests the speed, and be close to the terminal surface of the barrel of bearing roller 5 that tests the speed, the interval of the quotation of disk 6 and the barrel terminal surface of bearing roller 5 that tests the speed is 5 ~ 10mm, can rotate along with the rotation of bearing roller 5 that tests the speed, but. The circumference of the speed measuring disk 6 is provided with a plurality of round holes 601 with the same size at equal intervals. And a sensor 7 is arranged on the sliding support 9, and the distance between the outer end surface of the sensing head of the sensor 7 and the surface of the speed measuring disc 6 is ensured to be 5-10 mm. The sliding support 9 is provided with a through hole connected with the base 4 and a mounting hole used for mounting the sensor 7 and the speed measuring carrier roller 5. Specifically, the sliding support 9 is an L-shaped support structure, and comprises a vertical support 902 and a horizontal mounting plate 901, wherein the horizontal mounting plate 901 is provided with a through hole 903, and the through hole 903 is a strip-shaped hole; the up end of base 4 is equipped with sliding support regulation hole 401, and this hole is rectangular shape hole, and the shape matches with the shape of through-hole 903, and length is greater than the length of through-hole 903, and the two realizes firm the connection through fixing bolt 8. The vertical support 902 is provided with a first mounting hole and a second mounting hole, the first mounting hole is used for mounting a shaft head of the speed measuring carrier roller 5, and the size and the shape of the hole are matched with those of the speed measuring carrier roller 5. The second mounting hole is used for mounting the sensor 7, and the size and the dimension of the hole are matched with the sensor 7. The set position of the second mounting hole corresponds to the set position of the circular hole 601 on the speed measuring disk 6, that is, the set height of the second mounting hole is based on the circular hole 601 on the speed measuring disk 6.

In this embodiment, the sensor 7 is a non-contact proximity limit (proximity sensor) of various types, the return difference, the response time, the detection frequency and the repetition precision of the proximity limit can be matched with the number, the diameter and the maximum rotation speed of the holes on the speed measuring disk 6, the selected type of the proximity limit is matched with the material and the appearance color of the speed measuring disk 6, and the output electric signal can meet the input requirement of the belt conveyor control system.

In the present embodiment, a computer is preferably used as the control system.

In this embodiment, as a preferable scheme, the base 4 is a frame-shaped base structure with an inclined top surface, the sliding support adjusting hole 401 is arranged on the inclined surface in a penetrating manner, and the sliding support 9 is vertically arranged on the inclined surface through the matching relationship of the sliding support adjusting hole 401, the through hole 903 and the fixing bolt 8. The speed measuring carrier roller 5 is fixed on the sliding support 9 through a first mounting hole, and the sensor 7 is fixed on the sliding support 9 through a second mounting hole. When the sliding support 9 moves to the upper part of the inclined plane of the base 4, the speed measuring carrier roller 5 is driven to move upwards, so that the speed measuring carrier roller is closer to the distance between the bottom surface of the conveying belt 1. Namely, the distance between the speed measuring carrier roller 5 and the conveying belt 1 can be adjusted by the moving position of the sliding support 9 on the inclined plane, so that the function of detecting the slipping phenomenon or the material flow by driving the speed measuring carrier roller 5 to rotate under the action of the conveying belt 1 when a small amount of material flows on the conveying belt 1 can be realized. In addition, according to this design, only need can realize measuring the speed or detecting the function that the material flows through the shift position of support 9 on the inclined plane that slides conveniently, easy and simple to handle, efficient, compare with prior art and need not a large amount of manual adjustments, the operation volume that can significantly reduce.

The anti-slip and material flow detection device for the belt conveyor can realize two different detection protection effects through different installation methods:

the first application method comprises the following steps: used as a conveyor belt anti-slip device. The device is arranged on a middle frame 3 of a belt conveyor, and a groove-shaped carrier roller bracket 2 is arranged on the middle frame 3 and used for supporting a conveying belt 1. The device is arranged between two groove-shaped carrier roller brackets 2.

Specifically, the method comprises the following steps: the sliding support 9 is arranged on the base 4, and the base 4 is arranged on the middle frame 3 and is arranged between the two groove-shaped carrier roller supports 2. Make the bottom surface conveyer belt contact that speed measuring bearing roller 5 and conveyer belt 1 bore through removing sliding support 9, no matter be no load state or heavily loaded state, all keep conveyer belt 1 and speed measuring bearing roller 5 contact, ensure that conveyer belt 1 can drive speed measuring bearing roller 5 rotatory when moving. At this time, the speed measuring carrier roller 5 arranged on the sliding support 9 can drive the speed measuring disc 6 to rotate, the circular hole 601 is arranged on the circumference of the speed measuring disc 6, the position of the circular hole 601 just corresponds to the position of the sensor 7, when the speed measuring disc 6 rotates, the sensor 7 cannot detect a signal at the position of the circular hole 601 of the speed measuring disc 6, and the signal can be detected only at the position other than the position of the circular hole 601; as the tachometer disc 6 rotates continuously, the sensor 7 can generate a continuous pulse signal and output it to the control system, which determines the speed of the tachometer idler 5 based on the number of pulses, thereby determining the speed of the conveyor belt 1. When the measured speed is inconsistent with the specified value of the conveyor belt 1, it can be determined that the conveyor belt 1 has an abnormal condition, such as a slip phenomenon, indicating that the belt conveyor has a fault. A shutdown process is required.

The second application method comprises the following steps: used as a material flow detection device of the belt conveyor. The device is arranged on a middle frame 3 of a belt conveyor, and a groove-shaped carrier roller bracket 2 is arranged on the middle frame 3 and used for supporting a conveying belt 1. The device is arranged between two groove-shaped carrier roller brackets 2.

Specifically, the method comprises the following steps: the sliding support 9 is arranged on the base 4, and the base 4 is arranged on the middle frame 3 and is arranged between the two groove-shaped carrier roller supports 2. The sliding support 9 is arranged on the base 4, a certain distance is kept between the speed measuring carrier roller 5 and the bottom conveying belt borne by the conveying belt 1 by moving the sliding support 9, the distance is used as a basis for judging whether materials exist according to the minimum material amount on the conveying belt 1, so that the distance can be adjusted according to different requirements of users, and the common distance value can be set to be (10 mm-50 mm). When materials appear on the conveyer belt 1, the conveyer belt 1 sinks downwards under the action of the gravity of the materials, at the moment, the conveyer belt 1 is in contact with the speed measuring carrier roller 5, the running conveyer belt 1 can enable the speed measuring carrier roller 5 to generate rotary motion, at the moment, the speed measuring carrier roller 5 arranged on the sliding support 9 can drive the speed measuring disc 6 to rotate, the circular hole 601 is arranged on the circumference of the speed measuring disc 6, the position of the circular hole 601 is right corresponding to the position of the sensor 7, when the speed measuring disc 6 rotates, the sensor 7 cannot detect signals at the position of the circular hole 601 of the speed measuring disc 6, only the position other than the position of the circular hole 601 can detect signals, along with the continuous rotation of the speed measuring disc 6, the sensor 7 can generate continuous pulse signals and output a control system, so as to determine that the material flows through the conveyer belt 1, when the conveyer belt 1 recovers no load, the conveyer belt 1 can be, at this time, the sensor 7 no longer outputs a signal, and the control system determines that the belt conveyor is in an idle running state because the signal is not obtained.

While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and those skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.