CN220200464U - Belt speed measuring device - Google Patents

Abstract

The belt speed measuring device comprises a frame, a conveyor belt and a speed measuring mechanism, wherein the speed measuring mechanism is arranged on a supporting beam below the conveyor belt; is characterized in that: the speed measuring mechanism consists of a bracket, a trolley wheel, a through shaft, a speed measuring gear and a speed measuring switch, wherein the bracket is fixed on a supporting beam, the through shaft is rotatably arranged on the bracket along the horizontal direction, and the trolley wheel is fixed on the through shaft and is contacted with the lower surface of the conveying belt; the speed measuring gear is fixed at the outer end of the through shaft, the speed measuring switch is arranged on the outer side of the speed measuring gear and is used for measuring the rotation angle of the speed measuring gear. According to the belt speed measuring device, the trolley and the speed measuring gear are driven to synchronously rotate by the movement of the conveying belt, the speed measuring switch converts the rotation angle of the speed measuring gear into an electric signal to output, so that the measurement of the conveying speed of the conveying belt is realized, and the problem of inaccurate speed measurement caused by the slipping of the conveying belt is solved.

Description

Belt speed measuring device

Technical field

The utility model relates to a belt speed measuring device, more specifically, to a belt speed measuring device that utilizes a speed measuring gear and a speed measuring switch to measure speed.

Background technique

Conveyor belts are needed to transport materials in many production situations. For example, in the cement production process, conveyor belts are needed to transport the raw materials required for cement production over long distances. In the process of transporting materials on a conveyor belt, in order to accurately measure the conveyed volume, it is necessary to accurately measure the conveyor belt's transmission speed. Since the pulley driving the conveyor belt may slip, the speed of the drive motor that drives the pulley cannot reflect the actual running speed of the conveyor belt. This results in the inability to measure the rotational speed on the output shaft of the drive motor. In order to accurately measure the rotation speed of the conveyor belt, this paper proposes a measurement device that accurately characterizes its movement speed by contacting the conveyor belt.

Contents of the invention

In order to overcome the shortcomings of the above technical problems, the utility model provides a belt speed measuring device.

The belt speed measuring device of the present invention includes a frame, a transmission belt and a speed measuring mechanism. The frame plays a role of fixing and supporting. A support beam is fixed on the frame. The transmission belt is circulated along the length direction of the frame. The support beam is provided with A diagonal support roller that supports the conveyor belt; the speed measuring mechanism is arranged on the support beam below the conveying belt; it is characterized in that: the speed measuring mechanism consists of a bracket, a touch wheel, a through shaft, a speed measuring gear and a speed measuring switch, and the bracket is fixed on On the support beam, the through shaft rotates in the horizontal direction and is installed on the bracket. The contact wheel is fixed on the through shaft and contacts the lower surface of the transmission belt; the speed measuring gear is fixed on the outer end of the through shaft, and the speed measuring switch is arranged on the outside of the speed measuring gear. , the speed measuring switch is used to measure the rotation angle of the speed measuring gear, and a signal transmission line is connected to the speed measuring switch.

In the belt speed measuring device of the present invention, the outer surface of the contact wheel is wrapped with a layer of rubber for increasing the friction between the contact wheel and the transmission belt.

In the belt speed measuring device of the present invention, the bracket is composed of two vertical plates arranged in parallel. The two vertical plates are fixed on the supporting beams. The through shaft is rotated on the two vertical plates through bearings, and the contact wheel is located between the two vertical plates.

In the belt speed measuring device of the present invention, a horizontal support roller is provided on the frame below the support beam, and the horizontal support roller is used to support the return conveyor belt.

In the belt speed measuring device of the present invention, side guard plates are fixed on the frames on both sides of the transmission belt.

The beneficial effects of the utility model are: in the belt speed measuring device of the utility model, a speed measuring mechanism composed of a bracket, a contact wheel, a through shaft, a speed measuring gear and a speed measuring switch is provided on the frame support beam below the transmission belt. The through shaft is rotated and set On the bracket, the touch wheel and the speed measuring gear are fixed on the through shaft, the outer surface of the touch wheel is in contact with the lower surface of the transmission belt, and the speed measuring switch is arranged on the outside of the speed measuring gear to measure the rotation angle of the speed measuring gear; In this way, when in use, the movement of the conveyor belt drives the contact wheel and the speed measuring gear to rotate synchronously, and the speed measuring switch converts the rotation angle of the speed measuring gear into an electrical signal for output, thus realizing the measurement of the conveying speed of the conveyor belt and solving the problem of existing drive When the rotation speed of the motor is used to characterize the belt speed of the conveyor belt, there is a technical problem of inaccurate speed measurement caused by belt slippage.

Description of drawings

Figure 1 is a schematic structural diagram of the belt speed measuring device of the present invention.

In the picture: 1 frame, 2 support beams, 3 conveyor belts, 4 inclined support rollers, 5 brackets, 6 contact wheels, 7 through shafts, 8 speed measuring gears, 9 speed measuring switches, 10 signal transmission lines, 11 horizontal support rollers, 12 side guards.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and examples.

As shown in Figure 1, a schematic structural diagram of the belt speed measuring device of the present invention is given. It is composed of a frame 1, a transmission belt 3 and a speed measuring mechanism. The frame 1 plays a role of fixing and supporting. Along the length direction of the frame 1 Support beams 2 are arranged at even intervals. The support beams 2 not only ensure the firmness of the frame 1, but also support the transmission belt 3. The conveyor belt 3 is circulated on the frame 1, that is, the conveyor belt 3 is annular as a whole. The conveyor belt 3 on the upper part of the frame 1 is V-shaped as shown. The upper conveyor belt 3 is provided with an oblique support below to support it. The material to be conveyed is placed on the roller 4 on the V-shaped conveyor belt 3, which is driven by the driving motor to move in a circular and reciprocating manner. A horizontal support roller 11 is provided below the lower transmission belt 3 shown. The horizontal support roller 11 ensures that the transmission belt 3 has less resistance during its cyclic reciprocating motion.

The drive motor drives the transmission belt 3 to rotate through the pulley. Currently, the speed of the drive motor or the speed of the flat pulley is used to represent the speed of the transmission belt 3. However, in the actual operation process, varying degrees of friction between the pulley and the transmission belt 3 are likely to occur. The slipping phenomenon will therefore lead to inaccurate speed measurement of the conveyor belt 3. Therefore, the belt speed measuring device of the present utility model is proposed.

The speed measuring mechanism consists of a bracket 5, a touch wheel 6, a through shaft 7, a speed measuring gear 8 and a speed measuring switch 9. The bracket 5 is fixed on the support beam 2, the through shaft 7 is set along the horizontal direction, and the through shaft 7 is rotated and set on the bracket 5. The contact wheel 6 is fixed on the through shaft 7, and the outer surface of the contact wheel 6 is in contact with the lower surface of the transmission belt 3. During the rotation of the transmission belt 3, the contact wheel 6 and the through shaft 7 can rotate synchronously. The shown speed measuring gear 8 is fixed on the through shaft 7 , and the speed measuring switch 9 is arranged on the periphery of the speed measuring gear 8 . The speed measuring switch 9 is used to measure the rotation angle of the speed measuring gear 8 . During the rotation of the speed measuring gear 8, when the gear teeth and gear gaps on the speed measuring gear 8 rotate to both ends of the speed measuring switch 9, the measurement signal of the speed measuring switch 9 will change, thereby triggering the speed measuring switch 9 to emit a signal that changes with the rotation speed. The pulse signal generated is output through the signal transmission line 10 to measure the conveying speed of the conveyor belt 3.

The bracket 5 shown is composed of two vertical plates arranged in parallel. Both vertical plates are fixed on the support beam 2. The through shaft 7 is rotated and fixed on the two vertical plates through bearings. The contact wheel 6 is located between the two vertical plates. The speed measuring gear 8 is fixed on the through shaft 7 on the outside of the vertical plate. The shown frame 1 is also provided with side guards 12 on both sides to achieve protection.

It can be seen that the belt speed measuring device of the present invention drives the contact wheel 6, the through shaft 7 and the speed measuring gear 8 to rotate synchronously through the contact between the contact wheel 6 and the transmission belt 3, thereby realizing the measurement of the movement speed of the transmission belt 3, making the measurement more accurate. precise.

Claims (5)

1. A belt speed measuring device, including a frame (1), a conveyor belt (3) and a speed measuring mechanism. The frame plays a role of fixing and supporting. A support beam (2) is fixed on the frame. The conveyor belt extends along the length of the frame. The direction is cyclically set, and the support beam is provided with an oblique support roller (4) that supports the conveyor belt; the speed measuring mechanism is arranged on the support beam below the conveyor belt; it is characterized in that: the speed measuring mechanism is composed of a bracket (5), a contact It consists of a wheel (6), a through shaft (7), a speed measuring gear (8) and a speed measuring switch (9). The bracket is fixed on the support beam, the through shaft is rotated in the horizontal direction and is installed on the bracket, and the contact wheel is fixed on the through shaft and It is in contact with the lower surface of the transmission belt; the speed measuring gear is fixed on the outer end of the through shaft, and the speed measuring switch is arranged on the outside of the speed measuring gear. The speed measuring switch is used to measure the rotation angle of the speed measuring gear. A signal transmission line is connected to the speed measuring switch. 2. The belt speed measuring device according to claim 1, characterized in that: the outer surface of the contact wheel (6) is wrapped with a layer of rubber for increasing the friction between the contact wheel and the transmission belt (3). 3. The belt speed measuring device according to claim 1 or 2, characterized in that: the bracket (5) is composed of two vertical plates arranged in parallel, and the two vertical plates are fixed on the supporting beam (2), and the through shaft (7) ) is mounted on two vertical plates through bearing rotation, and the contact wheel (6) is located between the two vertical plates. 4. The belt speed measuring device according to claim 1 or 2, characterized in that: a horizontal support roller (11) is provided on the frame (1) below the support beam (2), and the horizontal support roller is used for Support the return conveyor belt (3). 5. The belt speed measuring device according to claim 1 or 2, characterized in that: side guards (12) are fixed on the frames (1) on both sides of the transmission belt (3).