阅读说明：本技术 一种利用接近开关测动力头转速的结构及其方法 (Structure and method for measuring rotation speed of power head by using proximity switch ) 是由 辛德忠 秦怡 万军 蒲剑 肖玉清 赵胜天 陈科宇 窦鑫 王国震 张先韬 *** 于 2020-07-30 设计创作，主要内容包括：本发明属于机械设计领域,涉及一种利用接近开关测动力头转速的结构及其方法,包括主轴,还包括一端设有法兰部的筒体,该筒体插入主轴一端的内部,法兰部抵靠在主轴的端面上并与主轴通过紧固件固定连接；法兰部的外沿设置为凹凸齿轮,还包括与凹凸齿轮配合使用的接近开关。本发明一种利用接近开关测动力头转速的结构及其方法,不过多改变钻机的结构,不加较为复杂的传感机构,只是巧妙改变法兰部的边沿结构,结合接近开关,用简单的方法实现测量动力头转速。(The invention belongs to the field of mechanical design, and relates to a structure and a method for measuring the rotating speed of a power head by using a proximity switch, wherein the structure comprises a main shaft and a barrel, wherein one end of the barrel is provided with a flange part, the barrel is inserted into one end of the main shaft, and the flange part abuts against the end surface of the main shaft and is fixedly connected with the main shaft through a fastening piece; the outer edge of the flange part is provided with a concave-convex gear and also comprises a proximity switch matched with the concave-convex gear. The structure and the method for measuring the rotating speed of the power head by using the proximity switch do not change the structure of a drilling machine too much, do not add a complex sensing mechanism, only change the edge structure of the flange part skillfully, and combine the proximity switch to realize the measurement of the rotating speed of the power head by using a simple method.)

1. The utility model provides an utilize proximity switch to survey structure of unit head rotational speed, includes the main shaft, its characterized in that: the cylinder body is inserted into one end of the main shaft, and the flange part abuts against the end face of the main shaft and is fixedly connected with the main shaft through a fastening piece;

the outer edge of the flange part is provided with a concave-convex gear, and the flange part further comprises a proximity switch matched with the concave-convex gear for use.

2. The structure for measuring the rotation speed of the power head by using the proximity switch as claimed in claim 1, wherein: the detection end of the proximity switch and the flange part are positioned on the same horizontal plane, and the detection end faces the outer edge of the flange part.

3. The structure for measuring the rotation speed of the power head by using the proximity switch as claimed in claim 1, wherein: and a water swivel shaft is also rotatably arranged in the barrel, one end of the water swivel shaft is connected with a sealing connecting piece in the main shaft, and the other end of the water swivel shaft penetrates through the flange part and is connected with a water swivel outside the flange part.

4. The structure for measuring the rotation speed of the power head by using the proximity switch as claimed in claim 1, wherein: the concave-convex gears are uniformly distributed on the outer edge of the flange part.

5. The structure for measuring the rotation speed of the power head by using the proximity switch as claimed in claim 1, wherein: the flange part and one end of the cylinder are of an integrally formed structure.

6. A method for measuring the rotating speed of a power head by using a proximity switch is applied to the structure for measuring the rotating speed of the power head by using the proximity switch, which is characterized by comprising the following steps:

s1: determining the number n of convex parts of the concave-convex gear, and setting a proximity switch threshold distance d;

s2: starting the main shaft, wherein the flange part synchronously rotates along with the main shaft at the moment, and the proximity switch detects;

s3: when the proximity switch detects that the distance is larger than d +2mm, the proximity switch is judged to be aligned to the groove part of the flange part, and a pulse signal is sent out to be 0; when the proximity switch detects that the distance is less than d-2mm, the proximity switch is judged to be aligned with the protruding part of the flange part, and a pulse signal is sent out to be 01;

s4: and when the proximity switch continuously reads n groups of 01 pulse values, the period is one period, namely the power head rotates for one circle, so that the rotating speed of the power head is obtained.

7. The method for measuring the rotation speed of the power head by using the proximity switch as claimed in claim 6, wherein: the number n of the convex parts of the concave-convex gear is more than or equal to 1.

8. The method for measuring the rotation speed of the power head by using the proximity switch as claimed in claim 6, wherein: the proximity switch threshold distance d is 0-8 mm.

Technical Field

The invention belongs to the field of mechanical design, and relates to a structure and a method for measuring the rotating speed of a power head by using a proximity switch.

Background

Along with the increasing requirement of the underground coal mine drilling machine on intellectualization, certain working condition parameters of the drilling machine are required to be detected, wherein the working condition parameters comprise the rotating speed of a power head, but the rotating speed of the power head is driven by a hydraulic shaft, so that an external sensor is required to be connected for measuring the drilling speed, but the external sensor in the prior art can influence the normal operation of the drilling machine, and therefore the normal operation of the drilling machine is required to be designed without influencing the normal operation of the drilling machine so as to obtain the rotating speed parameters of the.

Disclosure of Invention

In view of the above, the present invention provides a structure and a method for measuring a rotational speed of a power head by using a proximity switch, wherein the proximity switch is used for measuring, and the original mechanical structure is ingeniously changed, so that the rotational speed of the power head is measured.

In order to achieve the purpose, the invention provides the following technical scheme: a structure for measuring the rotating speed of a power head by using a proximity switch comprises a main shaft and a barrel, wherein one end of the barrel is provided with a flange part, the barrel is inserted into one end of the main shaft, and the flange part abuts against the end surface of the main shaft and is fixedly connected with the main shaft through a fastener;

the outer edge of the flange part is provided with a concave-convex gear and also comprises a proximity switch matched with the concave-convex gear.

Optionally, the detection end of the proximity switch and the flange portion are located on the same horizontal plane, and the detection end faces the outer edge of the flange portion.

Optionally, a water swivel shaft is further rotatably disposed in the barrel, one end of the water swivel shaft is connected with a sealing connector in the main shaft, and the other end of the water swivel shaft penetrates through the flange part and is connected with a water swivel outside the flange part.

Optionally, the concave-convex gears are uniformly distributed on the outer edge of the flange part.

Optionally, the flange part and one end of the cylinder are of an integrally formed structure.

A method for measuring the rotating speed of a power head by using a proximity switch is applied to the structure for measuring the rotating speed of the power head by using the proximity switch, and comprises the following steps:

s1: determining the number n of convex parts of the concave-convex gear, and setting a proximity switch threshold distance d;

s2: starting the main shaft, wherein the flange part synchronously rotates along with the main shaft at the moment, and the proximity switch detects;

s3: when the proximity switch detects that the distance is larger than d +2mm, the proximity switch is judged to be aligned to the groove part of the flange part, and a pulse signal is sent out to be 0; when the proximity switch detects that the distance is less than d-2mm, the proximity switch is judged to be aligned with the protruding part of the flange part, and a pulse signal is sent out to be 01;

s4: and when the proximity switch continuously reads n groups of 01 pulse values, the period is one period, namely the power head rotates for one circle, so that the rotating speed of the power head is obtained.

Optionally, the number n of convex parts of the concave-convex gear is greater than or equal to 1.

Optionally, the proximity switch threshold distance d is 0-8 mm.

The invention has the beneficial effects that: the structure and the method for measuring the rotating speed of the power head by using the proximity switch do not change the structure of a drilling machine too much, do not add a complex sensing mechanism, only change the edge structure of the flange part skillfully, and combine the proximity switch to realize the measurement of the rotating speed of the power head by using a simple method.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.

Drawings

For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:

FIG. 1 is a cross-sectional view of a configuration for measuring the rotational speed of a power head using a proximity switch and a method thereof according to the present invention;

fig. 2 is an isometric view of a configuration and method for measuring the rotational speed of a power head using a proximity switch in accordance with the present invention.

Reference numerals: the water swivel comprises a main shaft 1, a barrel 2, a flange part 3, a fixing bolt 4, a water swivel 5, a water swivel shaft 6 and a sealing connecting piece 7.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.

Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.

Referring to fig. 1 to 2, the structure for measuring the rotation speed of the power head by using the proximity switch includes a main shaft 1, and further includes a cylinder 2 having a flange portion 3 at one end thereof, the flange portion 3 and one end of the cylinder 2 are integrally formed, the cylinder 2 is inserted into one end of the main shaft 1, and the flange portion 3 abuts against an end surface of the main shaft 1 and is fixedly connected to the main shaft 1 by a fixing bolt 4; the outer edge of flange portion 3 sets up to the concave-convex gear, still include the proximity switch who uses with the concave-convex gear cooperation, proximity switch's sense terminal is located same horizontal plane with flange portion 3, and its sense terminal is towards the outer edge of flange portion 3, it is provided with water swivel shaft 6 still to rotate in the barrel 2, the one end of this water swivel shaft 6 is connected with sealing connection 7 in 1 internal connection of main shaft, the other end passes flange portion 3 and is connected with water swivel 5 in its outside, concave-convex gear evenly distributed is along the outer edge of flange portion 3.

A method for measuring the rotating speed of a power head by using a proximity switch is applied to the structure for measuring the rotating speed of the power head by using the proximity switch, and comprises the following steps:

s1: determining that the number of the convex parts of the concave-convex gear is 14, and setting the threshold distance of the proximity switch to be 5 mm;

s2: starting the main shaft 1, wherein the flange part 3 synchronously rotates along with the main shaft 1, and the proximity switch detects;

s3: when the proximity switch detects that the distance is greater than 7mm, the proximity switch is judged to be aligned with the groove part of the flange part 3, and a pulse signal is sent out to be 0; when the proximity switch detects that the distance is less than 5mm, the proximity switch is judged to be aligned with the protruding part of the flange part 3, and a pulse signal is sent out to be 01;

s4: when the proximity switch continuously reads 14 groups of 01 pulse values, the period is one period, namely the power head rotates once, and therefore the rotating speed of the power head is obtained.

The structure and the method for measuring the rotating speed of the power head by using the proximity switch do not change the structure of a drilling machine too much, do not add a complex sensing mechanism, only change the edge structure of the flange part 3 skillfully, and combine the proximity switch to realize the measurement of the rotating speed of the power head by using a simple method.

Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.