A comparative speed measuring controller

Abstract

The embodiment of the present invention discloses a comparative speed controller, which specifically relates to the field of conveyor belt speed monitoring, including a controller housing, a protective cover connected to the front end of the controller housing, and a circuit board installed inside the controller housing on the inner side of the protective cover, a first sensor installed on the circuit board, a second sensor installed on one side of the first sensor, a third sensor installed on one side of the second sensor, a single-chip microprocessor installed on one side of the circuit board close to the first sensor, the second sensor and the third sensor, and a display screen installed on the circuit board, three of which are arranged respectively on one side above the first sensor, the second sensor and the third sensor. The present invention has a synchronous three-channel alarm output function, and is used in conjunction with three sets of specially made high-frequency pulse current sensors, and can be conveniently programmed for low-speed, overspeed or zero-speed alarms.

Description

Technical Field

[0001] The embodiment of the present invention relates to the field of conveyor belt speed monitoring, and in particular to a comparative speed measuring controller. Background Art

[0002] Belt conveyor, also known as rubber belt conveyor, has strong conveying capacity, long conveying distance, simple structure and easy maintenance. It can conveniently implement programmed control and automated operation. It is widely used in various industries such as home appliances, electronics, electrical appliances, machinery, tobacco, injection molding, post and telecommunications, printing, food, etc., for assembly, testing, debugging, packaging and transportation of objects.

[0003] During the use of the existing belt conveyor, its transmission speed needs to be monitored and controlled, so a speed meter is needed. However, the existing speed controller products for belt conveyors are simple in function, with only a single-channel single-way signal output, and can only detect low-speed signals. They do not have other functions, have a single function, and have poor reliability. During the operation of the belt conveyor, the belt will shake, the irregular load carried by the belt will cause irregular changes in the belt running speed, and external reasons will cause problems with the sensor, which will cause unnecessary downtime, thereby affecting the normal operation of the equipment. Summary of the invention

[0004] To this end, an embodiment of the present invention provides a comparative speed measurement controller with a synchronous three-channel alarm output function, which is used in conjunction with three specially made groups of high-frequency pulse current sensors and can be conveniently programmed for low-speed, overspeed or zero-speed alarms to solve the problems in the prior art caused by only having a single-channel single-way signal output, and only being able to detect low-speed signals, without having other functions, having a single function, and having poor reliability.

[0005] In order to achieve the above-mentioned purpose, an embodiment of the present invention provides the following technical solutions: a comparative speed measurement controller, comprising a controller housing, a protective cover connected to the front end of the controller housing, and a circuit board installed inside the controller housing on the inner side of the protective cover, a first sensor installed on the circuit board, a second sensor installed on one side of the first sensor, and a third sensor installed on one side of the second sensor, a single-chip microprocessor is installed on one side of the circuit board close to the first sensor, the second sensor and the third sensor, and a display screen is installed on the circuit board, three display screens are provided, and are respectively provided on one side above the first sensor, the second sensor and the third sensor, a power indicator light is provided above the display screen, an action indicator light is provided on one side of the power indicator light, and an operation button is provided below the display screen.

[0006] Furthermore, the protective cover is connected to the housing of the controller via four fixing bolts arranged at the corners, and threaded holes are arranged inside the housing of the controller at positions corresponding to the outer sides of the screws of the fixing bolts.

[0007] Furthermore, positioning holes are arranged inside the housing of the controller near four corners, and positioning rods are arranged on the inner side wall of the protective cover at positions corresponding to the inner sides of the positioning holes.

[0008] Furthermore, the control instrument housing and the protective cover are both components made of a refined aluminum cast alloy.

[0009] Furthermore, a glass protective cover is arranged inside the protective cover at a position corresponding to the outer side of the display screen, a fixed frame is connected to the edge of the glass protective cover, and the fixed frame is fixedly connected to the outer wall of the protective cover by bolts.

[0010] Furthermore, the first sensor, the second sensor and the third sensor are all high-frequency pulse current sensors.

[0011] Furthermore, the operation key consists of three parts: a setting key, a shift key and an adjustment key.

[0012] The embodiments of the present invention have the following advantages: the controller adopts single-chip microprocessor quick processing technology, which is applied to online speed slip monitoring of belt conveyor belts, has a synchronous three-channel alarm output function, and is used in conjunction with three specially made groups of high-frequency pulse current sensors, which can be conveniently programmed for low-speed, overspeed or zero-speed alarms. The high-frequency pulse current sensor adopts precise non-contact detection and is resin-sealed, and has a housing made of industrial-grade refined aluminum cast alloy, which has good sealing performance and can work stably for a long time in harsh environments. The unique three external display windows can intuitively observe the operating values ​​on site. The unique technology can detect low-speed signals, meter damage, meter power failure, probe damage, and probe disconnection, and has alarm detection and driven wheel brake detection functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0014] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0015] Figure 1 It is a structural schematic diagram of the present invention;

[0016] Figure 2 It is a schematic diagram of the external structure of the present invention;

[0017] Figure 3 is a control circuit diagram of the first sensor in the present invention;

[0018] Figure 4 is a control circuit diagram of the second sensor in the present invention;

[0019] Figure 5 is a control circuit diagram of the third sensor in the present invention;

[0020] In the figure: 1 controller housing, 2 protective cover, 3 circuit board, 4 display screen, 5 power indicator light, 6 action indicator light, 7 operation button, 8 glass protective cover, 9 first sensor, 10 second sensor, 11 third sensor, 12 single chip microprocessor, 21 fixing bolt, 22 threaded hole, 23 positioning hole. DETAILED DESCRIPTION

[0021] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Refer to the instruction manual Figure 1-5A comparative speed measuring controller of this embodiment comprises a controller housing 1, a protective cover 2 is connected to the front end of the controller housing 1, and a circuit board 3 is installed inside the controller housing 1 on the inner side of the protective cover 2, a first sensor 9 is installed on the circuit board 3, a second sensor 10 is installed on one side of the first sensor 9, and a third sensor 11 is installed on one side of the second sensor 10, a single-chip microprocessor 12 is installed on one side of the circuit board 3 close to the first sensor 9, the second sensor 10 and the third sensor 11, and a display screen 4 is installed on the circuit board 3, three display screens 4 are provided, and are respectively provided on one side above the first sensor 9, the second sensor 10 and the third sensor 11, a power indicator light 5 is provided above the display screen 4, an action indicator light 6 is provided on one side of the power indicator light 5, and an operation button 7 is provided below the display screen 4.

[0023] Furthermore, the protective cover 2 is connected to the controller housing 1 by four fixing bolts 21 arranged at the corners, and a threaded hole 22 is arranged inside the controller housing 1 at the outer position of the screw corresponding to the fixing bolt 21, so as to facilitate the connection and fixation between the protective cover 2 and the controller housing 1.

[0024] Furthermore, positioning holes 23 are provided inside the controller housing 1 near the four corners, and positioning rods are provided on the inner side wall of the protective cover 2 corresponding to the inner side of the positioning holes 23, so that the protective cover 2 can be installed on the controller housing 1 more accurately.

[0025] Furthermore, the control instrument housing 1 and the protective cover 2 are both made of a refined aluminum cast alloy material, which is convenient for improving the structural strength and stability of the instrument, so that it can work stably in a harsh environment.

[0026] Furthermore, a glass protective cover 8 is provided inside the protective cover 2 at a position corresponding to the outer side of the display screen 4, and a fixed frame is connected to the edge of the glass protective cover 8. The fixed frame and the outer wall of the protective cover 2 are fixedly connected by bolts, which facilitates the installation of the glass protective cover 8 and makes it easier for the operator to read the data on the display screen 4.

[0027] Furthermore, the first sensor 9 , the second sensor 10 and the third sensor 11 are all high-frequency pulse current sensors.

[0028] Furthermore, the operation key 7 is composed of three parts: a setting key, a shift key and an adjustment key.

[0029] The implementation scenario is specifically as follows: a protective cover 2 is connected to the front end of the controller housing 1, and the protective cover 2 is connected to the controller housing 1 through four fixing bolts 21 arranged at the corners. A threaded hole 22 is arranged inside the controller housing 1 at the outer position of the screw corresponding to the fixing bolt 21, which is convenient for connecting and fixing the protective cover 2 to the controller housing 1. The controller housing 1 and the protective cover 2 are both components made of a refined aluminum cast alloy, which is convenient for improving the structural strength and stability of the instrument, so that it can work stably in harsh environments, and a circuit board 3 is installed inside the controller housing 1 on the inner side of the protective cover 2, and a first sensor is installed on the circuit board 3. The first sensor 9 is provided with a second sensor 10 on one side of the first sensor 9, and a third sensor 11 is provided on one side of the second sensor 10. The first sensor 9, the second sensor 10 and the third sensor 11 all adopt high-frequency pulse current sensors, and the high-frequency pulse current sensors adopt precise non-contact detection and are sealed with resin. A single-chip microprocessor 12 is provided on one side of the circuit board 3 close to the first sensor 9, the second sensor 10 and the third sensor 11, and a display screen 4 is provided on the circuit board 3. There are three display screens 4 in total, and they are respectively provided above the first sensor 9, the second sensor 10 and the third sensor 11. On the side, a glass protective cover 8 is arranged at the outer position of the display screen 4 corresponding to the inner part of the protective cover 2, and a fixed frame is connected to the edge of the glass protective cover 8. The fixed frame and the outer wall of the protective cover 2 are fixedly connected by bolts, which is convenient for the installation of the glass protective cover 8, and then convenient for the operator to read the data on the display screen 4. A power indicator light 5 is arranged above the display screen 4, and an action indicator light 6 is arranged on one side of the power indicator light 5. An operation button 7 is arranged below the display screen 4. The operation button 7 consists of a setting button, a shift button and an adjustment button. The controller adopts a single-chip microprocessor 12 quick processing technology and is applied to the online control of the conveyor belt of the belt conveyor. Speed ​​slip monitoring has a synchronous three-channel alarm output function and is used in conjunction with three specially made sets of high-frequency pulse current sensors. It can be easily programmed for low-speed, overspeed or zero-speed alarms. The high-frequency pulse current sensor uses precision non-contact detection and is resin-sealed, as well as an industrial-grade refined aluminum cast alloy shell with good sealing performance. It can work stably for a long time in harsh environments. The unique three external display windows can intuitively observe the operating values ​​on site. The unique technology can detect low-speed signals, meter damage, meter power failure, probe damage, and probe disconnection, and it has alarm detection and driven wheel brake detection functions.

[0030] Working principle: by setting the controller housing 1, the protective cover 2, the circuit board 3, the first sensor 9, the second sensor 10 and the third sensor 11, the first sensor 9, the second sensor 10 and the third sensor 11 all adopt high-frequency pulse current sensors, the high-frequency pulse current sensors adopt precise non-contact detection and are resin-sealed, and a single-chip microprocessor 12 is installed on the side of the circuit board 3 close to the first sensor 9, the second sensor 10 and the third sensor 11, and a display screen 4 is installed on the circuit board 3, there are three display screens 4, which are respectively arranged on the upper side of the first sensor 9, the second sensor 10 and the third sensor 11, a power indicator light 5 is arranged above the display screen 4, an action indicator light 6 is arranged on one side of the power indicator light 5, and an operation button is arranged below the display screen 4 7. The operation button 7 consists of three parts: the setting button, the shift button and the adjustment button. This controller adopts the single-chip microprocessor 12 quick processing technology, which is applied to the online speed slip monitoring of the belt conveyor belt. It has a synchronous three-channel alarm output function and is used in conjunction with three sets of specially made high-frequency pulse current sensors. It can be conveniently programmed for low-speed, overspeed or zero-speed alarms. The high-frequency pulse current sensor adopts precise non-contact detection and is resin-sealed, as well as an industrial-grade refined aluminum cast alloy shell with good sealing performance. It can work stably for a long time in harsh environments. The unique external three display windows can intuitively observe the operating values ​​on site. The unique technology can detect low-speed signals, meter damage, meter power failure, probe damage, and probe disconnection, and has alarm detection and driven wheel brake detection functions.

[0031] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A comparative speed measuring controller, comprising a controller housing (1), characterized in that: The front end of the control instrument housing (1) is connected to a protective cover (2), and a circuit board (3) is installed inside the control instrument housing (1) and located inside the protective cover (2). A first sensor (9) is installed on the circuit board (3), a second sensor (10) is installed on one side of the first sensor (9), and a third sensor (11) is installed on one side of the second sensor (10). A single-chip microprocessor (12) is installed on one side of the circuit board (3) close to the first sensor (9), the second sensor (10) and the third sensor (11). A display screen (4) is installed on the circuit board (3), and three display screens (4) are provided, which are respectively provided on one side above the first sensor (9), the second sensor (10) and the third sensor (11). A power indicator light (5) is provided above the display screen (4), an action indicator light (6) is provided on one side of the power indicator light (5), and an operation button (7) is provided below the display screen (4); The first sensor (9), the second sensor (10) and the third sensor (11) are all high-frequency pulse current sensors, which use precision non-contact detection and are resin-sealed; The control instrument housing (1) and the protective cover (2) are both components made of a refined aluminum cast alloy.

2. A comparative speed control device according to claim 1, characterized in that: The protective cover (2) is connected to the control instrument housing (1) via four fixing bolts (21) arranged at the corners, and threaded holes (22) are arranged inside the control instrument housing (1) at positions corresponding to the outer sides of the screws of the fixing bolts (21).

3. A comparative speed control device according to claim 1, characterized in that: Positioning holes (23) are arranged at the four corners of the interior of the control instrument housing (1), and positioning rods are arranged at the inner side wall of the protective cover (2) at positions corresponding to the inner sides of the positioning holes (23).

4. A comparative speed measuring controller according to claim 1, characterized in that: A glass protective cover (8) is arranged inside the protective cover (2) at a position corresponding to the outside of the display screen (4), and a fixed frame is connected to the edge of the glass protective cover (8), and the fixed frame is fixedly connected to the outer wall of the protective cover (2) by bolts.

5. The comparative speed measuring controller according to claim 1, characterized in that: The operation key (7) consists of three parts: a setting key, a shift key and an adjustment key.

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