A weighing and pressurizing device arranged on an online friction belt conveyor

Abstract

The present invention discloses a weighing and boosting device arranged on an online friction belt conveyor. The method of the present invention comprises: two groups of weighing devices and one group of boosting devices, the boosting device is fixed between the two groups of weighing devices; the weighing device comprises a conveyor belt, rollers, etc., the rollers are placed below the conveyor belt, the bearing plate is placed below the rollers, and the weighing sensor is placed below the bearing plate; the boosting device is composed of an upper crossbeam and two end structures, the upper crossbeam is placed above the conveyor belt, the two end structures are arranged in the same symmetrical manner, and are composed of a support frame, an upper gear, etc., the support frame is provided with horizontal holes and inclined holes, the upper crossbeam passes through the horizontal hole, the upper gear passes through the upper crossbeam, one end of the long round tube passes through the inclined hole, and the other end contacts the side of the conveyor belt, the sleeve passes through the long round tube, the lower gear meshes with the upper gear, the spring is sleeved on the long round tube, one end contacts the sleeve, and the other end of the spring contacts the raised baffle of the long round tube. The present invention can realize controllable tension of the conveyor belt, has low cost, and is easy to maintain.

Description

Technical Field

[0001] The invention belongs to the technical field of belt conveyors, and in particular relates to a weighing and pressurizing device arranged on an online friction belt conveyor. Background Art

[0002] With the continuous development of modern mining industry, people pay more and more attention to the development of belt conveyors, especially for long-distance and large-volume transportation requirements. When using belt conveyors for long-distance transportation, one of the solutions used is to use a line friction intermediate belt drive in the conveyor structure. During the transportation process of the online friction belt conveyor, the intermediate drive and the main machine rely on the friction between the belts to transmit traction, and the magnitude of the traction depends largely on the amount of material. When there is insufficient or even no material on the intermediate drive section, the intermediate drive outputs insufficient traction, which in turn causes the tension of the main machine conveyor belt to increase. In severe cases, it can cause the conveyor belt to slip or even cause safety accidents. However, there is no solution to this problem in the existing technical solutions.

[0003] Therefore, in order to solve the above problems in the prior art, a weighing and pressurizing device installed on an online friction belt conveyor is specially designed. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and to propose a weighing and pressurizing device arranged on an online friction belt conveyor, which can increase the traction force when there is insufficient or even no material on the intermediate drive to ensure the normal tension of the main conveyor belt.

[0005] To achieve the above objectives, the present invention proposes the following technical solutions:

[0006] A weighing and pressurizing device arranged on an online friction belt conveyor comprises two groups of weighing devices and one group of pressurizing device, wherein the pressurizing device is fixed between the two groups of weighing devices; the weighing device comprises a conveyor belt, a roller, a load-bearing plate, and a weighing sensor, wherein the roller is placed under the conveyor belt, the load-bearing plate is placed under the roller, and the weighing sensor is placed under the load-bearing plate; the pressurizing device is composed of an upper crossbeam and supporting structures at both ends, wherein the upper crossbeam is placed above the conveyor belt and is kept horizontal with the width direction of the conveyor belt, the supporting structures at both ends are of the same composition and are symmetrically arranged, and the structure at each end is composed of a support frame, an upper gear, a lower gear, an elongated round tube, and a threaded sleeve , spring, the support frame is provided with horizontal holes and inclined holes, the two ends of the upper beam respectively pass through the horizontal holes of the two support frames, the upper gear passes through the upper beam and is fixedly connected to the upper beam, one end of the long round tube passes through the inclined hole of the support frame, and the other end contacts the side of the conveyor belt, the threaded sleeve passes through the long round tube and is placed at one end of the long round tube close to the support frame, the lower gear is installed on the threaded sleeve, meshes with the upper gear, and is fixed in position, a raised baffle is provided at one end of the long round tube away from the support frame, the spring is sleeved on the long round tube, one end of the spring contacts the threaded sleeve, and the other end of the spring contacts the raised baffle of the long round tube.

[0007] Preferably, a layer of carrier belt is connected above the conveyor belt to reduce wear on the conveyor belt.

[0008] Preferably, the upper gear and the lower gear can form meshing rotations with different transmission ratios by adjusting the number of teeth to meet the needs of different equipment.

[0009] Preferably, a groove is provided on the side of the long round tube that contacts the side of the conveyor belt, so as to transfer pressure to the conveyor belt.

[0010] Preferably, an elastic roller is provided in the groove on the side of the long round tube that contacts the side of the conveyor belt, so as to contact the edge of the conveyor belt and reduce the wear of the conveyor belt.

[0011] Preferably, rollers are provided on both upper and lower sides of the groove in the horizontal direction on the side where the long round tube contacts the side of the conveyor belt, so as to reduce the wear of the conveyor belt and the long round tube.

[0012] Specifically, the implementation scheme is as follows: when the material is transported to the weighing section, the weight of the material, conveyor belt, rollers, and load-bearing device act together on the weighing sensor. At this time, the weighing sensor converts the weight signal into an electrical signal, which is then amplified, digital-to-analog converted, filtered, and converted into a digital signal by the intelligent instrument and input into the operator. At the same time, the speed sensor installed in the return section of the conveyor belt converts the conveyor belt speed signal into an analog quantity or a pulse quantity and inputs it into the operator. The operator multiplies the weight and the speed of the conveyor belt at the same time to obtain the instantaneous weight of the material.

[0013] During the operation of the conveyor belt, when the material on the conveyor belt passes through the weighing section, the model generated by the weighing device is input into the controller, the controller is connected to the servo motor, the servo motor is connected to the upper beam in the booster device, the servo motor drives the upper beam to rotate, the upper beam rotates to drive the upper gear and the lower gear at both ends to rotate, the lower gear rotates in place, the rotation of the lower gear causes the threaded sleeve to move away from the support frame, at this time the threaded sleeve squeezes the long round tube through the spring, at this time the long round tubes at both ends squeeze the conveyor belt toward the middle and lower part at the same time. In addition, the elastic rollers arranged at the grooves of the long round tubes are used to press the conveyor belt when squeezing the conveyor belt, and can also reduce the wear of the conveyor belt and the long round tube; the rollers arranged horizontally in the grooves of the long round tubes are used to contact with the conveyor belt, reduce the wear of the conveyor belt, and reduce the wear of the long round tubes.

[0014] Since the weighing sensor is connected to the controller, the pressure value can be transmitted to the controller. The controller is connected to the servo motor. The servo motor is connected to the upper crossbeam in the boosting device. The normal force on both sides of the conveyor belt can be automatically adjusted according to the pressure value, that is, the weight of the material, so as to adjust the tension of the conveyor belt to remain normal. The boosting device is also connected to the pressure sensor to transmit the pressure value generated in the boosting device to the pressure sensor. The pressure sensor is connected to the controller to transmit the pressure value to the controller, thereby realizing the cyclic control of the pressure value.

[0015] Since the present invention adopts a purely mechanical transmission structure, it can reduce cost investment while ensuring the effect, and can automatically adjust the size of the applied force according to the amount of material. It can also set the required pressure according to different combinations of the transmission ratio of the meshing transmission, the pitch of the thread and the spring stiffness coefficient to meet the needs of different equipment, and has low cost and easy maintenance.

[0016] The beneficial effects of the present invention are:

[0017] The present invention connects a weighing device with a controller, a servo motor and a boosting device in sequence, the boosting device is connected with a pressure sensor, the pressure sensor is connected with the controller at the same time, the weighing sensor transmits a pressure signal to the controller, the controller adjusts the servo motor according to the pressure signal, the servo motor adjusts the boosting device under the guidance of the pressure signal to ensure that the tension of the conveyor belt is normal, the pressure value of the boosting device is transmitted to the pressure sensor, the pressure sensor transmits the pressure value to the controller, and the tension of the conveyor belt is controlled by repeated adjustments; the mechanical transmission device can automatically adjust the applied pressure according to the weight of the material, and the required pressure can be set according to the transmission ratio of the gear, the pitch of the threaded sleeve and the stiffness coefficient of the spring. The needs of different equipment are met, and the cost is low and maintenance is convenient.

[0018] By adopting the above scheme, the present invention can realize controllable tension of the conveyor belt, increase the traction force of the conveyor belt when the material is insufficient, ensure that the tension value of the conveyor belt is normal, and can set the required pressure according to different combinations of parts in the device to meet the needs of different equipment, and has low cost and convenient maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 It is a structural schematic diagram of a weighing device of the present invention.

[0021] Figure 2 It is a schematic structural diagram of the supercharging device of the present invention.

[0022] Figure 3 It is a partially enlarged schematic diagram of the supercharging device of the present invention.

[0023] Figure 4 It is a control module diagram of the present invention.

[0024] Figure 5 It is a schematic diagram of the working principle of the present invention.

[0025] In the figure, 1- weighing sensor, 2- conveyor belt, 3- roller, 4- load-bearing plate, 5- bearing belt, 6- upper beam, 7- upper gear, 8- support frame, 9- lower gear, 10- long round tube, 11- threaded sleeve, 12- spring, 13- elastic roller, 14- roller in groove, 15- weighing device, 16- controller, 17- servo motor, 18- boost device, 19- pressure sensor. DETAILED DESCRIPTION

[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0028] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] As shown in the figure, a weighing and pressurizing device arranged on an online friction belt conveyor comprises two sets of weighing devices and one set of pressurizing device, wherein the pressurizing device is fixed between the two sets of weighing devices; the weighing device comprises a conveyor belt 2, a roller 3, a load-bearing plate 4, and a weighing sensor 1, wherein the roller 3 is placed below the conveyor belt 2, the load-bearing plate 4 is placed below the roller 3, and the weighing sensor 1 is placed below the load-bearing plate 4; the pressurizing device is composed of an upper crossbeam 6 and supporting structures at both ends, wherein the upper crossbeam 6 is placed above the conveyor belt 2 and is kept horizontal with the width direction of the conveyor belt 2, wherein the supporting structures at both ends are composed of the same composition and are symmetrically arranged, wherein the structure at each end is composed of a support frame 8, an upper gear 7, a lower gear 9, an elongated round tube 10, a threaded sleeve 11, and a spring 12, The support frame 8 is provided with horizontal holes and inclined holes, and the two ends of the upper beam 6 pass through the horizontal holes of the two support frames 8 respectively. The upper gear 7 passes through the upper beam 6 and is fixedly connected to the upper beam 6. One end of the elongated tube 10 passes through the inclined hole of the support frame 8, and the other end contacts the side of the conveyor belt 2. The threaded sleeve 11 passes through the elongated tube 10 and is placed at the end of the elongated tube 10 close to the support frame 8. The lower gear 9 is installed on the threaded sleeve 11 and meshes with the upper gear 7 and is fixed in position. A raised baffle is provided at the end of the elongated tube 10 away from the support frame 8. The spring 12 is sleeved on the elongated tube 10, one end of the spring 12 contacts the threaded sleeve 11, and the other end of the spring 12 contacts the raised baffle of the elongated tube 10.

[0031] Preferably, a layer of carrier belt 5 is connected above the conveyor belt 2 to reduce wear on the conveyor belt 2 .

[0032] Preferably, the upper gear 7 and the lower gear 9 can form meshing rotations with different transmission ratios by adjusting the number of teeth to meet the needs of different equipment.

[0033] Preferably, a groove is provided on the side of the long round tube 10 that contacts the side of the conveyor belt 2, in order to transfer pressure to the conveyor belt.

[0034] Preferably, an elastic roller 13 is provided in the groove on the side of the long round tube 10 that contacts the side of the conveyor belt 2 , so as to contact the edge of the conveyor belt and reduce the wear of the conveyor belt 2 .

[0035] Preferably, rollers 14 are provided on both upper and lower sides of the groove in the horizontal direction on the side where the elongated round tube 10 contacts the side of the conveyor belt 2 , so as to reduce the wear of the conveyor belt 2 and the elongated round tube 10 .

[0036] Specifically, the implementation plan is: when the material is transported to the weighing section, the weight of the material, conveyor belt 2, roller 3, and load-bearing device 4 act together on the weighing sensor 1. At this time, the weighing sensor 1 converts the weight signal into an electrical signal, which is then amplified, digital-to-analog converted, filtered, and converted into a digital signal by the intelligent instrument and input into the operator. At the same time, the speed sensor installed in the return section of the conveyor belt 2 converts the speed signal of the conveyor belt 2 into an analog quantity or a pulse quantity and inputs it into the operator. The operator multiplies the weight at the same time and the speed of the conveyor belt 2 to obtain the instantaneous weight of the material. The control module diagram is shown in FIG. Figure 4 As shown;

[0037] During the operation of the conveyor belt 2, when the material on the conveyor belt 2 passes through the weighing section, the model generated by the weighing device is input into the controller, the controller is connected to the servo motor, the servo motor is connected to the upper beam 6 in the booster device, the servo motor drives the upper beam 6 to rotate, the upper beam 6 rotates to drive the upper gear 7 and the lower gear 9 at both ends to rotate, the lower gear 9 rotates in place, and the rotation of the lower gear causes the threaded sleeve 11 to move away from the support frame 8, at this time the threaded sleeve 11 squeezes the long round tube 10 through the spring 12, at this time the long round tubes 10 at both ends squeeze the conveyor belt 2 toward the middle and lower side at the same time. In addition, the elastic roller 13 arranged at the groove of the long round tube 10 is used to press the conveyor belt 2 when squeezing the conveyor belt 2, and at the same time can reduce the wear of the conveyor belt 2 and the long round tube 10; the roller 14 arranged horizontally in the groove of the long round tube 10 is used to contact with the conveyor belt 2, reduce the wear of the conveyor belt 2, and reduce the wear of the long round tube 10 at the same time.

[0038] Since the weighing sensor 1 is connected to the controller 16, the pressure value can be transmitted to the controller 16, the controller 16 is connected to the servo motor 17, and the servo motor 17 is connected to the upper crossbeam 6 in the boosting device 18, the normal force on both sides of the conveyor belt can be automatically adjusted according to the pressure value, that is, the weight of the material, so as to adjust the tension of the conveyor belt 2 to keep it normal; the boosting device is also connected to the pressure sensor, and the pressure value generated in the boosting device is transmitted to the pressure sensor, and the pressure sensor is connected to the controller, and the pressure value is transmitted to the controller, so as to realize the cyclic control of the pressure value. The schematic diagram of the equipment is shown as follows: Figure 5 shown.

[0039] Since the present invention adopts a purely mechanical transmission structure, it can reduce cost investment while ensuring the effect, and can automatically adjust the size of the applied force according to the amount of material. It can also set the required pressure according to different combinations of the transmission ratio of the meshing transmission, the pitch of the thread and the spring stiffness coefficient to meet the needs of different equipment, and has low cost and easy maintenance.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A weighing and pressurizing device arranged on an online friction belt conveyor, characterized in that: It includes two groups of weighing devices and one group of boosting devices, wherein the boosting device is fixed between the two groups of weighing devices; the weighing device includes a conveyor belt, a roller, a load-bearing plate, and a weighing sensor, the roller is placed under the conveyor belt, the load-bearing plate is placed under the roller, and the weighing sensor is placed under the load-bearing plate; the boosting device is composed of an upper crossbeam and supporting structures at both ends, the upper crossbeam is placed above the conveyor belt and keeps horizontal with the width direction of the conveyor belt, the supporting structures at both ends are consistent in composition and symmetrically arranged, the structure at each end is composed of a support frame, an upper gear, a lower gear, an elongated round tube, a threaded sleeve, and a spring, the support frame is provided with horizontal holes and inclined holes, the two ends of the upper crossbeam pass through the horizontal holes of the two support frames respectively, the upper gear passes through the upper crossbeam and is fixedly connected to the upper crossbeam, one end of the elongated round tube passes through the inclined hole of the support frame, The other end contacts the side of the conveyor belt, and the threaded sleeve passes through the long round tube and is placed at one end of the long round tube close to the support frame. The lower gear is installed on the threaded sleeve and meshes with the upper gear. The position is fixed, and a raised baffle is provided at the end of the long round tube away from the support frame. The spring is sleeved on the long round tube, one end of the spring contacts the threaded sleeve, and the other end of the spring contacts the raised baffle of the long round tube; it also includes a servo motor, which is connected to the upper crossbeam in the booster device. The servo motor drives the upper crossbeam to rotate, and the rotation of the upper crossbeam drives the upper gear and the lower gear at both ends to rotate, and the lower gear rotates in place. The rotation of the lower gear causes the threaded sleeve to move in the direction away from the support frame. At this time, the threaded sleeve squeezes the long round tube through the spring, and the long round tubes at both ends squeeze the conveyor belt toward the middle and lower part at the same time, increasing the traction force of the conveyor belt when the material is insufficient.

2. The weighing and pressurizing device provided on the online friction belt conveyor according to claim 1, characterized in that: A layer of carrying belt is connected above the conveyor belt.

3. The weighing and pressurizing device provided on the online friction belt conveyor according to claim 1, characterized in that: The upper gear and the lower gear can form meshing rotation with different transmission ratios by adjusting the number of teeth.

4. The weighing and pressurizing device provided on the online friction belt conveyor according to claim 1, characterized in that: A groove is arranged on the side of the long round tube in contact with the side edge of the conveyor belt.

5. The weighing and pressurizing device provided on the online friction belt conveyor according to claim 4 is characterized in that: An elastic roller is arranged in a groove on the side of the long round tube that contacts the side of the conveyor belt.

6. The weighing and pressurizing device provided on the online friction belt conveyor according to claim 5, characterized in that: Rollers are arranged on both upper and lower sides of the groove in the horizontal direction on the side where the long round tube contacts the side edge of the conveyor belt.

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