External adjustable coal feeder rotating speed measuring device

Abstract

The utility model discloses an external adjustable coal feeder rotating speed measuring device, which relates to the field of speed sensors, and adopts the technical scheme that the external adjustable coal feeder rotating speed measuring device comprises a rotating speed sensor and a leading-out device, one end of the leading-out device is connected with the input end of the rotating speed sensor, and the other end of the leading-out device is connected with a belt bearing rotating part of the coal feeder. Rotation of the coal feeder belt bearing is synchronized to the rotating speed sensor through the leading-out device, installation of the speed sensor is more flexible, the rotating speed sensor and the coal feeder belt are independent of each other, a certain distance can be kept, falling coal briquettes are prevented from being smashed, and the coal feeder is more durable.

Description

Technical Field

[0001] The utility model relates to the field of speed sensors, in particular to an external adjustable speed measuring device for a coal feeder. Background Art

[0002] The coal feeder is an important equipment in the pulverizing system. It supplies coal to the coal mill and measures the amount of coal fed. The speed sensor of the coal feeder has always been directly installed on the rotating belt bearing at the coal inlet of the coal feeder, and then the sensor is fixed on the baffle of the coal feeder by fixing the aluminum sheet. The speed sensor is installed inside the coal feeder, at the coal outlet of the coal feeder. During operation, coal often accumulates at the installation place of the speed sensor, and coal powder easily enters the bearing of the speed sensor, causing the rotor of the speed sensor to get stuck and unable to rotate normally, and the speed sensor is damaged by the rotation of the belt bearing.

[0003] The speed sensor is a very important measuring device for measuring the coal quantity of the coal feeder. If the speed sensor is broken, the measured value of the coal quantity of the coal feeder will be zero. The coal feeder cannot be put into automatic control, which affects the operator's control over the coal quantity of the coal feeder, increases the operator's monitoring pressure, and also increases the workload of maintenance personnel. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides an external adjustable coal feeder speed measuring device. The lead-out device is used to synchronize the rotation of the coal feeder belt bearing to the speed sensor, so that the installation of the speed sensor is more flexible, and the speed sensor and the coal feeder belt are independent of each other, and a certain distance can be maintained to avoid being damaged by falling coal blocks, and it is more durable.

[0005] The utility model solves the technical problem by adopting the following technical solution: an external adjustable coal feeder speed measuring device, comprising a speed sensor and a lead-out device;

[0006] One end of the lead-out device is connected to the input end of the rotation speed sensor, and the other end of the lead-out device is connected to the rotating part of the coal feeder belt bearing.

[0007] This solution synchronizes the rotation of the coal feeder belt bearing to the speed sensor through a lead-out device, so that the speed of the coal feeder belt bearing can be detected. The installation of the speed sensor is more flexible, and the speed sensor and the coal feeder belt are independent of each other, and can maintain a certain distance to avoid damage by falling coal blocks.

[0008] Preferably, the lead-out device includes a first rotating shaft, a second rotating shaft and a flexible connector, wherein the first rotating shaft is coaxially fixed to the rotating part of the coal feeder belt bearing, the second rotating shaft is coaxially fixed to the input end of the speed sensor, and the two ends of the flexible connector are respectively connected to the first rotating shaft and the second rotating shaft. By providing a flexible connector, the relative position accuracy of the speed sensor and the non-enzyme and belt bearing does not need to be too high to meet the measurement requirements, and the installation is simpler.

[0009] Preferably, the soft connector is a hose, and both ends of the hose are respectively inserted and matched with the first rotating shaft and the second rotating shaft. The first rotating shaft and the second rotating shaft are connected by the hose, which makes installation more convenient.

[0010] Preferably, the hose is a rubber hose, which is more durable and more convenient to use.

[0011] Preferably, the first rotating shaft is connected to the rotating part of the coal feeder belt bearing via a flange, which can make the connection more convenient.

[0012] Preferably, the two end ports of the hose are respectively provided with inner sleeves, the inner wall of the inner sleeves are provided with internal splines, and the ends of the first rotating shaft and the second rotating shaft are respectively provided with external splines adapted to the internal splines. Through the spline matching, it is possible to transmit a greater torque, facilitate the more accurate transmission of the speed to the speed sensor, and is more convenient to install.

[0013] Preferably, the first rotating shaft and the second rotating shaft are respectively covered with positioning springs, and the two positioning springs push the ends of the hose toward the middle. The positioning springs on both sides can push the hose toward the middle to ensure that the two ends of the hose can be well connected to the first rotating shaft and the second rotating shaft.

[0014] Preferably, the end of the inner sleeve extends outward from the end of the hose to form a contact plate, and the positioning spring abuts against the contact plate to be in contact with the positioning spring to receive force.

[0015] Preferably, the bracket is provided with a slide rail perpendicular to the second rotating shaft, the speed sensor is slidably matched with the slide rail, and a locking member is provided between the speed sensor and the slide rail. Because the length of the belt is often adjusted, the speed sensor can be moved by the slide rail to meet the needs of changing the length of the belt.

[0016] Preferably, the slide rail has a plurality of positioning holes spaced apart from each other, and the locking member is a bolt, which passes through the positioning hole and fits with the speed sensor. The speed sensor can be well fixed by the cooperation between the bolt and the positioning hole.

[0017] Advantages of the utility model:

[0018] This solution uses a lead-out device to synchronize the rotation of the coal feeder belt bearing to the speed sensor. The installation of the speed sensor is more flexible, and the speed sensor and the coal feeder belt are independent of each other, and can maintain a certain distance to avoid damage by falling coal blocks, making it more durable. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 1 A schematic diagram of an embodiment of the utility model;

[0021] Among them, 1. Coal feeder belt bearing; 2. Flange; 3. Speed ​​sensor; 4. First rotating shaft; 5. Second rotating shaft; 6. Flexible connector; 7. Inner sleeve; 8. Contact plate; 9. Positioning spring; 10. Slide rail; 11. Positioning hole. DETAILED DESCRIPTION

[0022] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. The embodiments are only used to explain the present invention and do not limit the protection scope of the present invention.

[0023] Example

[0024] like Figure 1 As shown, an external adjustable coal feeder speed measuring device includes a speed sensor 3 and a lead-out device; one end of the lead-out device is connected to the input end of the speed sensor 3, and the other end of the lead-out device is connected to the rotating part of the coal feeder belt bearing 1.

[0025] This solution synchronizes the rotation of the coal feeder belt bearing 1 to the speed sensor 3 through a lead-out device, and can detect the speed of the coal feeder belt bearing 1. The installation of the speed sensor is more flexible, and the speed sensor 3 and the coal feeder belt are independent of each other, and can maintain a certain distance to avoid being damaged by falling coal blocks.

[0026] The lead-out device includes a first rotating shaft 4, a second rotating shaft 5 and a flexible connector 6, wherein the first rotating shaft 4 is coaxially fixed to the rotating part of the coal feeder belt bearing 1, the second rotating shaft 5 is coaxially fixed to the input end of the speed sensor 3, and the two ends of the flexible connector 6 are respectively connected to the first rotating shaft 4 and the second rotating shaft 5. By providing the flexible connector 6, the relative position accuracy of the speed sensor and the non-enzyme and belt bearing does not need to be too high to meet the measurement requirements, and the installation is simpler.

[0027] The soft connector 6 is a hose, and the two ends of the hose are respectively inserted and matched with the first rotating shaft 4 and the second rotating shaft 5. The first rotating shaft 4 and the second rotating shaft 5 are connected by the hose, which makes installation more convenient.

[0028] The hose is a rubber hose, which is more durable and more convenient to use.

[0029] The first rotating shaft 4 is connected to the rotating part of the coal feeder belt bearing 1 through the flange 2, which can be connected more conveniently.

[0030] The two end ports of the hose are respectively provided with inner sleeves 7, the inner wall of the inner sleeve 7 is provided with internal splines, and the ends of the first rotating shaft 4 and the second rotating shaft 5 are respectively provided with external splines adapted to the internal splines. Through the spline matching, it can transmit greater torque, facilitate the more accurate transmission of speed to the speed sensor, and is more convenient to install.

[0031] The first rotating shaft 4 and the second rotating shaft 5 are respectively covered with positioning springs 9, and the two positioning springs 9 push the ends of the hose toward the middle. The positioning springs 9 on both sides can push the hose toward the middle to ensure that the two ends of the hose can be well connected to the first rotating shaft 4 and the second rotating shaft 5. In addition, it is very convenient to install and disassemble. Push the hose to one side, and the other end of the hose will be separated from the corresponding rotating shaft, so that the hose can be disassembled.

[0032] The end of the inner sleeve 7 extends outward from the end of the hose to form a contact plate 8, and the positioning spring 9 abuts against the contact plate 8, so as to contact and bear force with the positioning spring 9.

[0033] The bracket is provided with a slide rail 10 perpendicular to the second rotating shaft 5, the speed sensor 3 is slidably matched with the slide rail 10, and a locking member is provided between the speed sensor 3 and the slide rail 10. Because the length of the belt is often adjusted, the speed sensor 3 is moved by the slide rail 10 to meet the needs of changing the length of the belt.

[0034] The slide rail 10 is provided with a plurality of positioning holes 11 at intervals, and the locking member is a bolt, which passes through the positioning hole 11 and is matched with the speed sensor 3. The speed sensor 3 can be well fixed by the cooperation between the bolt and the positioning hole 11.

[0035] Advantages of the utility model:

[0036] This solution uses a lead-out device to synchronize the rotation of the coal feeder belt bearing 1 to the speed sensor 3, making the installation of the speed sensor more flexible and making the speed sensor 3 independent of the coal feeder belt, so that a certain distance can be maintained to avoid damage by falling coal blocks.

[0037] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. An external adjustable coal feeder speed measuring device, characterized in that: It includes a rotation speed sensor (3) and a lead-out device; One end of the lead-out device is connected to the input end of the rotation speed sensor (3), and the other end of the lead-out device is connected to the rotating part of the coal feeder belt bearing (1).

2. The external adjustable coal feeder speed measuring device according to claim 1 is characterized in that: The lead-out device comprises a first rotating shaft (4), a second rotating shaft (5) and a flexible connecting member (6); the first rotating shaft (4) is coaxially fixed to the rotating part of the coal feeder belt bearing (1); the second rotating shaft (5) is coaxially fixed to the input end of the speed sensor (3); and the two ends of the flexible connecting member (6) are respectively connected to the first rotating shaft (4) and the second rotating shaft (5).

3. The external adjustable coal feeder speed measuring device according to claim 2 is characterized in that: The soft connection part (6) is a hose, and the two ends of the hose are respectively inserted and matched with the first rotating shaft (4) and the second rotating shaft (5).

4. The external adjustable coal feeder speed measuring device according to claim 3 is characterized in that: The hose is a rubber hose.

5. The external adjustable coal feeder speed measuring device according to claim 4 is characterized in that: The first rotating shaft (4) is connected to the rotating part of the coal feeder belt bearing (1) via a flange (2).

6. The external adjustable coal feeder speed measuring device according to claim 3 is characterized in that: The two end ports of the hose are respectively provided with inner sleeves (7), the inner wall of the inner sleeve (7) is provided with internal splines, and the ends of the first rotating shaft (4) and the second rotating shaft (5) are respectively provided with external splines adapted to the internal splines.

7. The external adjustable coal feeder speed measuring device according to claim 6 is characterized in that: The first rotating shaft (4) and the second rotating shaft (5) are respectively covered with positioning springs (9), and the two positioning springs (9) push the ends of the hose toward the middle.

8. The external adjustable coal feeder speed measuring device according to claim 7 is characterized in that: The end of the inner sleeve (7) extends outward from the end of the hose to form a contact plate (8), and the positioning spring (9) abuts against the contact plate (8).

9. The external adjustable coal feeder speed measuring device according to claim 2, characterized in that: The bracket is provided with a slide rail (10) perpendicular to the second rotating shaft (5); the rotation speed sensor (3) is slidably matched with the slide rail (10); and a locking member is provided between the rotation speed sensor (3) and the slide rail (10).

10. The external adjustable coal feeder speed measuring device according to claim 9, characterized in that: The slide rail (10) is provided with a plurality of positioning holes (11) at intervals, and the locking member is a bolt, which is adapted to the rotation speed sensor (3) after passing through the positioning hole (11).

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