PRC belt weigher value display device

Abstract

The utility model provides a PRC belt weigher display value control device, which relates to the technical field of mining belt weighers and comprises a belt weigher body. The belt weigher body comprises supporting frames, belt pulleys and a conveying belt, the top faces of the supporting frames are fixedly connected with control parts, tensioning structures are installed at the bottoms of the supporting frames, and the belt pulleys are installed between the supporting frames through fixed shafts. The tensioning structure comprises a weighing sensor and a fixed weighing rod, the weighing sensor is electrically connected with an external PRC controller, the fixed weighing rod is fixedly clamped in the weighing sensor, and an adjusting mechanism is installed on the fixed weighing rod. The force borne by the tensioning wheel is transmitted to the fixed weighing rod, and information is transmitted to the PRC through the weighing sensor, so that the lifting of the electric control lifting rod can be accurately controlled, the tensioning wheel is always kept at a proper position, the tensioning force of the conveying belt is proper and stable, the weighing accuracy is improved, and the production efficiency is improved. The problem that it is difficult to guarantee the stability of a belt to improve metering precision is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of mine belt scales, in particular to a device for displaying values of a PRC-controlled belt scale. Background Art

[0002] During the ore dressing process in a mine, it is necessary to accurately measure ore materials such as raw ore and waste rock. Belt transportation is adopted, and multiple belt scales are installed on the belt for accurate measurement to understand the instantaneous amount and cumulative amount of ore materials in the production process in real time, and to guide production and output statistics through the displayed values. However, for existing mine belt scales, due to the instability of the belt, the measurement results have errors, and it is difficult to ensure the stability of the belt to improve the measurement accuracy; since the speed and volume of ore materials put on the conveyor belt are not fixed, there are errors when measuring the flow rate of ore materials through the belt scale, and it is difficult to control the flow of ore materials to achieve uniform speed and uniform volume transmission and improve the accuracy of measurement. Summary of the Utility Model

[0003] An embodiment of the present disclosure relates to a device for displaying values of a PRC-controlled belt scale. Information is transmitted to a PRC controller through a weighing sensor, so that the lifting of an electric control lifting rod can be accurately controlled, the tension of the conveyor belt is made appropriate and stable, and the weighing accuracy is improved.

[0004] In a first aspect of the present disclosure, a device for displaying values of a PRC-controlled belt scale is provided, which specifically includes: a belt scale main body; a display device of the belt scale main body is connected to an external PRC controller. The belt scale main body includes a support frame, belt wheels and a conveyor belt. A control part is fixedly connected to the top surface of the support frame, a tensioning structure is installed at the bottom of the support frame, the belt wheels are installed between the support frames through fixed shafts, and the conveyor belt bypasses the outside of the belt wheels and is supported and rotated by the belt wheels; the tensioning structure includes a weighing sensor and a fixed weighing rod. The weighing sensor is electrically connected to the external PRC controller, the fixed weighing rod is fixedly clamped inside the weighing sensor, and an adjusting mechanism is installed on the fixed weighing rod; the control part includes a connecting plate, and a supporting plate is welded to the inner end of the connecting plate; a shaft is welded to the top surface of the supporting plate, and a flow control component is rotationally connected through the shaft; the flow control component includes a baffle plate, a scraping plate and a pressure sensor. The outer end face of the baffle plate is bolted to the scraping plate, the bottom surface of the scraping plate is attached to the conveyor belt, the pressure sensor is installed on the top surface of the cross plate of the baffle plate, and the pressure sensor is electrically connected to the external PRC controller.

[0005] In at least some embodiments, the adjusting mechanism is composed of a fixed pipe, an electric control lifting rod and a connecting plate. The fixed pipe is fixedly welded to the bottom surface of the connecting cross beam. The fixed weighing rod penetrates through the inside of the fixed pipe. The outside of the fixed pipe is fixedly welded to the moving end of the electric control lifting rod through a rod. The fixed end of the electric control lifting rod is fixedly connected to the connecting plate, and a tensioning wheel is movably connected to the bottom of the connecting plate through a shaft.

[0006] In at least some embodiments, a connecting crossbeam is welded between the support frames, and a driving motor is installed on the rear end face of the support frame. The driving shaft of the driving motor is coaxially connected to the shaft of the rightmost pulley.

[0007] In at least some embodiments, a connecting ring is welded to the outer end of the baffle. The connecting ring is rotatably connected to the shaft of the supporting plate. A connecting ear is welded to the outer end face of the baffle, and the connecting ear is rotatably connected to the fixed shaft of the movable end of the electric push rod. A measuring plate is perpendicularly welded to the left vertical surface of the baffle, and a leakage hole is provided at a position of the measuring plate close to the pressure sensor.

[0008] In at least some embodiments, the control part further includes an electric push rod. The fixed end of the electric push rod is movably clamped on the inner vertical surface of the connecting plate. A circular plate is welded to the movable end of the electric push rod, and a fixed shaft is welded on the top surface of the circular plate.

[0009] In at least some embodiments, the tensioning structure further includes a connecting rod. The connecting rod is fixedly inserted into the circular holes inside the weighing sensor and the fixed weighing rod. The connecting rod can be used to complete the fixed insertion between the weighing sensor and the fixed weighing rod, and can be replaced at any time according to the ore flow rate being weighed to ensure that the weighing range of the weighing sensor is appropriate.

[0010] The present utility model provides a PRC control belt scale display value device, which has the following beneficial effects:

[0011] When the present utility model is in use, the force received by the tensioning pulley is transmitted to the fixed weighing rod, and information is transmitted to the PRC controller through the weighing sensor, so that the lifting of the electric control lifting rod can be accurately controlled, the tensioning pulley is always kept in a proper position, the tension of the conveyor belt is appropriate and stable, and the weighing accuracy is improved;

[0012] When the ore fed onto the conveyor belt passes between the two baffles, the ore will accumulate on the left side of the baffle. After the accumulated ore presses on the pressure sensor on the measuring plate, the signal is transmitted to the external PRC controller. The PRC controller controls the electric push rod to contract and drives the baffle to rotate and open, and the ore will leak out from the leakage hole until the pressure sensor no longer senses the pressure change, and the electric push rod is kept at a fixed length to achieve flow control, so that the ore on the conveyor belt is always kept in quantitative delivery, and the weighing accuracy is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings of the embodiments will be briefly introduced below.

[0014] The drawings in the following description only relate to some embodiments of the present utility model and do not limit the present utility model.

[0015] In the drawings:

[0016] Figure 1 Shows a schematic structural diagram of the belt scale main body of the present application;

[0017] Figure 2 Shows a schematic structural diagram of the conveying belt of the present application from a bottom view perspective;

[0018] Figure 3 Shows the present application Figure 2 The enlarged structural schematic diagram at position A in;

[0019] Figure 4 Shows a schematic structural diagram of the control part of the present application;

[0020] Figure 5 Shows a schematic structural diagram of the flow control component of the present application;

[0021] Figure 6 Shows a schematic structural diagram of the tensioning structure of the present application.

[0022] List of reference numerals

[0023] 1. Belt scale main body; 11. Support frame; 1101. Connecting cross beam; 12. Belt pulley; 13. Conveying belt;

[0024] 2. Tensioning structure; 21. Weighing sensor; 22. Fixed weighing rod; 23. Connecting rod;

[0025] 3. Adjusting mechanism; 31. Fixed pipe; 32. Electrically controlled lifting rod; 33. Connecting plate; 3301. Tensioning wheel;

[0026] 4. Control part; 41. Connecting plate; 42. Electric push rod; 4101. Supporting plate;

[0027] 5. Flow control component; 51. Baffle; 5101. Connecting ring; 5102. Connecting ear; 5103. Measuring plate; 52. Scraper; 53. Pressure sensor. Detailed implementation manners

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0029] Embodiment: Please refer to FIGS. Figure 1 to FIGS. Figure 6 :

[0030] The present utility model provides a PRC-controlled belt scale display value device, comprising: a belt scale main body 1; the display device of the belt scale main body 1 is connected to an external PRC controller. The belt scale main body 1 includes a support frame 11, belt pulleys 12 and a conveyor belt 13. A control part 4 is fixedly connected to the top surface of the support frame 11. A tensioning structure 2 is installed at the bottom of the support frame 11. The belt pulleys 12 are installed between the support frames 11 through fixed shafts. The conveyor belt 13 bypasses the outside of the belt pulleys 12 and is supported by the belt pulleys 12 to rotate; the tensioning structure 2 includes a weighing sensor 21 and a fixed weighing rod 22. The weighing sensor 21 is electrically connected to the external PRC controller. The fixed weighing rod 22 is fixedly clamped inside the weighing sensor 21, and an adjusting mechanism 3 is installed on the fixed weighing rod 22; the control part 4 includes a connecting plate 41. A supporting plate 4101 is welded to the inner end of the connecting plate 41; a shaft is welded to the top surface of the supporting plate 4101, and a flow control component 5 is rotatably connected through the shaft; the flow control component 5 includes a baffle 51, a scraper 52 and a pressure sensor 53. The outer end surface of the baffle 51 is bolted to the scraper 52. The bottom surface of the scraper 52 is attached to the conveyor belt 13. The pressure sensor 53 is installed on the top surface of the cross plate of the baffle 51, and the pressure sensor 53 is electrically connected to the external PRC controller.

[0031] In the embodiments of the present disclosure, as shown in the attached Figure 4 and the attached Figure 5 As shown, a connecting ring 5101 is welded to the outer end of the baffle 51. The connecting ring 5101 is rotatably connected to the shaft of the supporting plate 4101. A connecting ear 5102 is welded to the outer end surface of the baffle 51. The connecting ear 5102 is rotatably connected to the fixed shaft of the movable end of the electric push rod 42. A measuring plate 5103 is perpendicularly welded to the left vertical surface of the baffle 51. A leakage hole is formed at a position of the measuring plate 5103 close to the pressure sensor 53. When the ore fed onto the conveyor belt 13 passes between the two baffles 51, the ore will accumulate on the left side of the baffle 51. After the accumulated ore presses on the pressure sensor 53 on the measuring plate 5103, a signal is transmitted to the external PRC controller. The PRC controller controls the electric push rod 42 to retract and drives the baffle 51 to rotate and open, and the ore will leak out from the leakage hole until the pressure sensor 53 no longer senses a pressure change, and the electric push rod 42 is maintained at a fixed length to achieve flow control.

[0032] In the embodiments of the present disclosure, as shown in the attached Figure 3 and the attached Figure 6As shown, the tensioning structure 2 further includes a connecting rod 23. The connecting rod 23 is fixedly inserted into the round holes inside the weighing sensor 21 and the fixed weighing rod 22. The connecting rod 23 can be used to complete the fixed insertion between the weighing sensor 21 and the fixed weighing rod 22, and can be replaced at any time according to the ore flow rate being weighed to ensure that the weighing range of the weighing sensor 21 is appropriate. When the fixed weighing rod 22 senses a change in gravity, it transmits a signal to the weighing sensor 21, and the external PRC controller adjusts the lifting of the adjusting mechanism 3 to keep it always in a suitable position, so that the tension of the conveyor belt 13 is always appropriate, improving the accuracy of weighing.

[0033] In the embodiment of the present disclosure, as shown in the attached Figure 1 , the attached Figure 2 , the attached Figure 3 and the attached Figure 6 As shown, the control unit 4 further includes an electric push rod 42. The fixed end of the electric push rod 42 is movably clamped on the inner vertical surface of the connecting plate 41. A circular plate is welded to the moving end of the electric push rod 42, and a fixed shaft is welded and erected on the top surface of the circular plate. The baffle 51 can be rotatably connected through the fixed shaft. When it is necessary to adjust the position of the baffle 51, the external PRC controller controls the telescopic movement of the electric push rod 42, and then drives the baffle 51 to rotate to complete the adjustment.

[0034] In the embodiment of the present disclosure, as shown in the attached Figure 1 As shown, a connecting cross beam 1101 is welded between the support frames 11, and a driving motor is installed on the rear end surface of the support frame 11. The driving shaft of the driving motor is coaxially connected to the shaft of the rightmost pulley 12. The rightmost pulley 12 is driven through the driving motor, and all the pulleys 12 can rotate synchronously through the conveyor belt 13 to convey the ore produced in the mine to a designated position, and weighing can be completed at the same time.

[0035] In the embodiment of the present disclosure, as shown in the attached Figure 3 and the attached Figure 6 As shown, the adjusting mechanism 3 is composed of a fixed pipe 31, an electric control lifting rod 32 and a connecting plate 33. The fixed pipe 31 is fixedly welded to the bottom surface of the connecting cross beam 1101. The inside of the fixed pipe 31 is penetrated by the fixed weighing rod 22. The outside of the fixed pipe 31 is fixedly welded to the moving end of the electric control lifting rod 32 through a rod. The fixed end of the electric control lifting rod 32 is fixedly connected to the connecting plate 33. A tensioning wheel 3301 is movably connected to the bottom of the connecting plate 33 through a shaft. When the conveyor belt 13 bypasses the tensioning wheel 3301, the force received by the tensioning wheel 3301 is transmitted to the fixed weighing rod 22, and information is transmitted to the PRC controller through the weighing sensor 21, so that the lifting of the electric control lifting rod 32 can be accurately controlled to keep the height of the tensioning wheel 3301 always in a suitable position, ensuring the stability of the conveyor belt 13.

[0036] Working principle of this embodiment: First, when the ore fed onto the conveyor belt 13 passes between the two baffles 51, the ore will accumulate on the left side of the baffle 51. After the accumulated ore presses on the pressure sensor 53 when it reaches the measuring plate 5103, the signal is transmitted to the external PRC controller. The PRC controller controls the retraction of the electric push rod 42, and drives the baffle 51 to rotate and open. Then the ore will leak out from the leakage holes until the pressure sensor 53 no longer senses pressure changes, and the electric push rod 42 is maintained at a fixed length to achieve flow control;

[0037] After the fixed weighing rod 22 senses the gravity change, it transmits the signal to the weighing sensor 21. The external PRC controller adjusts the lifting of the adjusting mechanism 3 to keep it in a proper position all the time, so that the tension of the conveyor belt 13 is always appropriate, improving the weighing accuracy;

[0038] The rightmost pulley 12 is driven by the driving motor, and all the pulleys 12 can rotate synchronously through the conveyor belt 13, so as to convey the ore produced in the mine to the designated position and complete weighing at the same time.

[0039] In this article, the following points need to be noted:

[0040] 1. The drawings of the embodiments of this disclosure only relate to the structures involved in the embodiments of this disclosure, and other structures can refer to the general design.

[0041] 2. Without conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0042] The above is only the specific implementation manner of this disclosure, but the protection scope of this disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by this disclosure can easily think of changes or substitutions, which should be covered within the protection scope of this disclosure. Therefore, the protection scope of this disclosure should be subject to the protection scope of the claims.

Claims

1. A device for displaying the value of a PRC-controlled belt scale, comprising: Belt scale main body (1); the display device of the belt scale main body (1) is connected to an external PRC controller. The belt scale main body (1) includes a support frame (11), belt pulleys (12) and a conveyor belt (13). A control part (4) is fixedly connected to the top surface of the support frame (11), and a tensioning structure (2) is installed at the bottom of the support frame (11). The belt pulleys (12) are installed between the support frames (11) through fixed shafts. The conveyor belt (13) bypasses the outside of the belt pulleys (12) and is supported and rotated by the belt pulleys (12); it is characterized in that the tensioning structure (2) includes a weighing sensor (21) and a fixed weighing rod (22). The weighing sensor (21) is electrically connected to the external PRC controller. The fixed weighing rod (22) is fixedly clamped inside the weighing sensor (21), and an adjusting mechanism (3) is installed on the fixed weighing rod (22); the control part (4) includes a connecting plate (41), and a supporting plate (4101) is welded to the inner end of the connecting plate (41); a shaft is welded to the top surface of the supporting plate (4101), and a flow control component (5) is rotationally connected through the shaft; the flow control component (5) includes a baffle (51), a scraper (52) and a pressure sensor (53). The outer end face of the baffle (51) is bolted to the scraper (52). The bottom surface of the scraper (52) is attached to the conveyor belt (13). The pressure sensor (53) is installed on the top surface of the cross plate of the baffle (51), and the pressure sensor (53) is electrically connected to the external PRC controller.

2. The device for displaying the value of a PRC-controlled belt scale according to claim 1, characterized in that A connecting cross beam (1101) is welded between the support frames (11), and a driving motor is installed on the rear end face of the support frame (11). The driving shaft of the driving motor is coaxially connected to the shaft of the rightmost belt pulley (12).

3. The device for displaying the value of a PRC-controlled belt scale according to claim 2, characterized in that The tensioning structure (2) further includes a connecting rod (23), and the connecting rod (23) is fixedly inserted into the round holes inside the weighing sensor (21) and the fixed weighing rod (22).

4. The device for displaying the value of a PRC-controlled belt scale according to claim 3, characterized in that The adjusting mechanism (3) is composed of a fixed pipe (31), an electric control lifting rod (32) and a connecting plate (33). The fixed pipe (31) is fixedly welded to the bottom surface of the connecting cross beam (1101). The fixed weighing rod (22) passes through the inside of the fixed pipe (31). The outside of the fixed pipe (31) is fixedly welded to the moving end of the electric control lifting rod (32) through a rod. The fixed end of the electric control lifting rod (32) is fixedly connected to the connecting plate (33). A tensioning wheel (3301) is movably connected to the bottom of the connecting plate (33) through a shaft.

5. The device for displaying the value of a PRC-controlled belt scale according to claim 3, characterized in that The control unit (4) further includes an electric push rod (42). The fixed end of the electric push rod (42) is movably clamped on the inner vertical surface of the connecting plate (41). A circular plate is welded to the moving end of the electric push rod (42), and a fixed shaft is welded and erected on the top surface of the circular plate.

6. The device for displaying the value of a PRC control belt scale according to claim 5, wherein A connecting ring (5101) is welded to the outer end of the baffle plate (51). The connecting ring (5101) is rotatably connected to the shaft of the supporting plate (4101). A connecting ear (5102) is welded to the outer end surface of the baffle plate (51). The connecting ear (5102) is rotatably connected to the fixed shaft at the moving end of the electric push rod (42). A measuring plate (5103) is perpendicularly welded to the left vertical surface of the baffle plate (51). Leakage holes are provided at positions on the measuring plate (5103) close to the pressure sensor (53).

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