CN110926677A

CN110926677A - A brush wire contact pressure detection device

Info

Publication number: CN110926677A
Application number: CN201911386094.XA
Authority: CN
Inventors: 李俊烨; 王新鹏; 惠锡铭; 张心明; 侯吉坤; 赵伟宏
Original assignee: Changchun University of Science and Technology
Current assignee: Changchun University of Science and Technology
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-03-27

Abstract

The invention provides an electric brush wire contact pressure detection device, which consists of an electric brush clamp and a pressure detection part, wherein two sides of the electric brush wire clamp are arranged on an optical platform through an adjusting frame, two sides of the clamp are arranged on the adjusting frame through adjusting sliders, so that the height of the clamp can be properly adjusted; the pressure detection part adjusts the pressure sensor and the profiling contact through a lifting table, a displacement table and an electric rotating table which are arranged on the optical platform so as to better simulate the contact state of the electric brush wire and the slip ring and further more accurately measure the actual contact pressure value of the electric brush wire; the invention has high measurement precision and can measure the contact pressure values of the brush wires of different models.

Description

Electric brush wire contact pressure detection device

Technical Field

The invention relates to the field of pressure detection, in particular to an electric brush wire contact pressure detection device

Background

The conductive slip ring is an important part widely applied to satellite-borne products, electric power and signal transmission between a rotating part and a fixed part is realized, the alloy wire is widely applied to an electric brush material of the conductive slip ring, in the conductive slip ring, an electric brush wire is in contact with a conductive slip ring body at a certain pressure, and the contact pressure has great influence on the performance, the wear rate and the service life of electric contact; the selection of the contact pressure is related to the current and the pressure conducted by the conductive slip ring, the larger the current and the voltage are, the larger the required contact pressure is, the larger the contact pressure is, the smaller the contact resistance is, and the phenomena of electric spark and electric erosion are not easy to occur, but the pressure increase also has a certain limit, the moment of friction is increased when the pressure limit is exceeded, the abrasion loss is increased, the friction rate is increased, and the service life of the equipment is shortened.

The contact pressure detection of the brush wire of the conductive slip ring is a very important work, and the quality of a product of the conductive slip ring is related to, as an important component of the conductive slip ring, the detection of the contact pressure value of the brush during tooling is an important link.

Disclosure of Invention

The invention aims to solve the problem of detecting the contact pressure value of the brush wire of the conductive slip ring, and provides a device for detecting the contact pressure value of the brush wire.

In order to solve the above problems, the present invention provides the following technical solutions: the device consists of an electric brush clamp and a pressure detection part, the electric brush clamp consists of an adjusting bracket, a slide block, a bevel plate, a clamp positioning plate and a quick clamp, the positioning plate consists of a positioning rod piece and two side fixing plates, the clamp positioning plate can correspondingly adjust the internal structure of the positioning plate according to the difference of the sizes of electric brushes, so as to meet the positioning function of the electric brushes with different sizes, the slide block can be adjusted in different heights, the pressure detection part can be matched with the electric brush wire pressure detection part to detect the pressures of the electric brushes with different sizes, the quick clamp can realize the quick clamping of the electric brushes, the pressure detection part consists of an electric lifting platform, an electric displacement platform, an electric rotating platform, a manual displacement platform, a pressure sensor, a sensor base and a copying contact, the pressure measurement part can be adjusted according to the conductive slip rings with different models, and the copying contact is utilized to simulate the contact pressure of, the electric brush clamp and the pressure detection part of the device are respectively arranged on the optical platform, so that the accuracy and the stability of pressure detection are ensured;

further, preferably, the bottom of the adjusting bracket is mounted on the optical platform, the distance between the two adjusting brackets can be properly adjusted to meet the clamping requirements of subsequent steps on the electric brush, the upper part of the adjusting bracket is a round rod piece, the size of the round rod piece is the same as that of a round hole of a sliding block, the sliding block is mounted on the round rod piece of the adjusting bracket, and the round rod piece is clamped and fixed through a clamping knob and can be adjusted in height;

further, as preferred, the fixture positioning plate is mounted on the slider through a bevel plate, the bevel plate and the positioning plate are respectively provided with a long round hole, so that the fixture positioning plate can be transversely adjusted, the electric brush can be further driven to be transversely fine-adjusted to meet the requirements of different position adjustment during pressure detection, positioning rod pieces inside the positioning plate are mounted on fixing plates on two sides of the positioning plate through bolts, for electric brushes with different sizes, the sizes of positioning grooves at the bottoms of the electric brushes are different, the positioning plate in the device can be changed by replacing the positioning rod pieces with different sizes, and the sizes of the positioning rod pieces are matched with the sizes of the positioning grooves at the bottoms of the electric brushes, so that the positioning function of the electric brushes with different models is realized;

furthermore, as an optimization, the fixing plates on the two sides of the positioning plate are provided with the rapid clamps, the rapid clamps can realize the rapid clamping function of the electric brush, when the electric brush is installed, only the positioning groove at the bottom of the electric brush is required to be aligned to the positioning plate for positioning, and then the rapid clamps are clamped, the length of the clamping arm of each clamp and the contact distance between the clamping contact and the electric brush can be adjusted, the clamping force can be adjusted according to the electric brushes of different models, and the clamping function of the electric brush is further realized;

further, preferably, the electric lifting table is arranged on the optical platform, the specific position is right below the fixture positioning table, the electric displacement table is arranged above the lifting table, the electric rotating table is arranged on a sliding block of the electric displacement table, the three devices can be connected with the motion controller, and the up-down, left-right and circular motion of the rotating table surface can be realized through the accurate control of the controller;

further, preferably, a manual displacement table is installed on the table top of the electric rotating table through a bolt, a pressure sensor is installed on a sliding block of the displacement table through a sensor base, a profiling contact is installed above the pressure sensor, the manual displacement table is used for adjusting the distance from the profiling contact to the rotating center, the manual displacement table can be finely adjusted, the distance from the profiling contact to the rotating center is further finely adjusted, and therefore the sizes of the conductive slip rings of different models are simulated;

preferably, a trapezoidal groove is formed in the contact surface between the upper portion of the profiling contact and the brush wire, the size of the groove is the same as that of the groove of the conductive sliding ring body, the material of the profiling contact is the same as that of the conductive sliding ring body, the contact environment of the sliding ring and the brush wire is further simulated, and the profiling contact can be replaced according to sliding ring bodies of different models;

further, as preferred, this device passes through automatic control, can realize the automated inspection function to the brush silk pressure, through the contact of the steerable profile modeling contact of control electric lift platform, electronic displacement platform, electronic revolving stage and brush silk, through the adjustment to manual displacement platform, can further the actual size of accurate simulation conductive slip ring body, look for the best contact pressure value of profile modeling contact and brush silk through control electric revolving stage, further, through automatic control, can realize the detection function to the whole row of brush silk contact pressure value of brush silk.

Drawings

FIG. 1 is a general schematic view of an electrical brush wire contact pressure detection device

FIG. 2 is a schematic view of an adjusting stand

FIG. 3 is a schematic view of a slider

FIG. 4 is a schematic view of a corner panel

FIG. 5 is a schematic view of a positioning plate of the clamp

FIG. 6 is a schematic view of a quick clamp

FIG. 7 is a partial view of a pressure measuring probe

FIG. 8 is a view showing the overall composition of the pressure measurement

FIG. 9 is a flow chart of brush wire pressure detection

Detailed Description

The invention provides an angle forming device for an electric brush wire, and the technical scheme in the embodiment of the invention is clearly and completely described below by combining with the attached drawings in the embodiment of the invention, and obviously, the described embodiment is only a part of the embodiment of the invention, but not all the embodiment. Other embodiments, which can be derived by one of ordinary skill in the art from the embodiments given herein without making any creative effort, shall fall within the scope of the present invention.

The device is divided into a clamp part and a pressure measuring part, wherein the clamp part respectively consists of an adjusting frame (12), a sliding block (11), a folded angle plate (9), a clamp positioning plate (8) and a quick clamp (1), the adjusting frame (12) consists of a base (12-3) and a round rod piece (12-1), the base (12-3) is installed on an optical platform (14) through a bolt (12-2), and the adjustment of different positions on the optical platform (14) can be realized through an adjusting bolt (12-2); the sliding block (11) consists of a clamping plate (11-2), a clamping knob (11-3), a bottom plate (11-4) and a through hole (11-1), six threaded holes (11-5) are machined in the bottom plate (11-4), the diameter of the through hole (11-1) is the same as that of the round rod piece (12-1), the round rod piece (12-1) is placed into the through hole (11-1) during installation, and the clamping knob (11-3) is screwed to realize fixation; the angle folding plate (9) consists of a transverse plate (9-1), a vertical plate (9-6) and a supporting plate rib (9-4), six through holes (9-5) are formed in the vertical plate (9-6), the through holes (9-5) correspond to the through holes (11-5) in the bottom plate (11-4) of the sliding block (11) in position, fixing is achieved through bolts, and two through holes (9-3) and one long round hole (9-2) are formed in the transverse plate (9-1); the clamp positioning plate (8) consists of a positioning rod (8-2) and two fixing plates (8-5), in order to better express the implementation mode, only one fixing plate (8-5) on one side is shown in the figure, a through hole (8-4) and a long round hole (8-6) are processed on the fixing plate (8-5), the through hole (8-4) is matched with a long round hole (9-2) of a folded plate (9), the long round hole (8-6) is matched with a through hole (9-3) of the folded plate (9), connection and adjustment are carried out through bolts, transverse fine adjustment of the fixing plate (8-5) is realized, fine adjustment of the position of the clamp is further realized, a rectangular groove (8-3) is processed on the fixing plate (8-5), and the size of the groove (8-3) is matched with that of the positioning rod (8-2), the positioning rod (8-2) is further screwed in the rectangular groove (8-3) through a bolt (8-1); the rapid clamp is fixed on a through hole (8-4) of a clamp positioning plate (8) through a bolt (1-3), the clamping force can be adjusted through adjusting a contact (1-2), and the rapid clamp can be realized through wrestling a handle (1-1).

The pressure measuring part consists of an electric lifting table (13), an electric displacement table (7), an electric rotating table (6), a manual displacement table (5), a pressure sensor (3), a sensor base (4) and a profiling contact (2); the electric lifting platform (13) is arranged on the optical platform (14), the electric displacement platform (7) is arranged above the electric lifting platform (13), and the electric rotating platform (6) is arranged on a sliding block of the electric displacement platform (7); the profiling contact (2) is processed with a trapezoidal groove (2-1), the lower part of the profiling contact is installed on a pressure sensor (3) through a connecting piece (2-2), the lower part of the pressure sensor (3) is connected with a transverse plate (4-1) of a sensor base (4), a side plate (4-2) of the sensor base (4) is a fixed end and is fixed on a movable table top (5-2) of a manual displacement table (5) through a bolt (5-3), the base of the manual displacement table (5) is further fixed on the table top (5-1) of an electric rotating table (6) through the bolt (5-4), and the pressure sensor (3) and the profiling contact (2) are adjusted through an adjusting rotating rod (5-5); the electric rotating platform (6) is connected to a corresponding motion controller through an interface (5-6) to control the motion of the corresponding motion controller, a fine adjustment knob (5-7) is arranged on one side of the electric rotating platform (6), and the knob (5-7) can be used for manually adjusting the rotating platform, so that the operation of a user is facilitated.

When pressure detection is carried out, firstly, a clamping knob (11-3) of a sliding block (11) is adjusted to adjust a clamp to a proper position, then the clamp is screwed down, a rapid clamp (1) is opened, a groove inside an electric brush (10) is aligned to a positioning rod (8-2), then the rapid clamp (1) is clamped, an electric lifting platform (13) and an electric displacement platform (7) are adjusted to a brush wire detection initial position, a manual displacement platform (5) is adjusted, the distance from a profiling contact (2) to a rotation center is adjusted to be the same as the radius size of an electric slip ring, further, a trapezoid groove of the profiling contact (2) is aligned to a first brush wire on one side of the brush wire of the electric brush by adjusting the electric displacement platform (7) and the electric rotating platform (6), the distance from the rotation center of the electric rotating platform (6) to the electric brush is controlled to be the same as the distance from the actual electric brush to the center of the slip ring by adjusting, further simulating the state of the electric brush wire in contact with the slip ring, wherein the profiling contact (2) contacts the first brush wire, further measuring the contact pressure at the moment, controlling the electric displacement table (7) and the electric lifting table (13) after the test is finished, adjusting the profiling contact (2) to the position of the next brush wire, detecting the contact pressure of the electric brush wire by simulating the flow, exchanging the position of the electric brush (10) after the pressure value of one side is completely measured, carrying out re-clamping, repeating the work, and finally finishing the detection of the contact pressure values of all the brush wires on the electric brush (10).

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A brush wire contact pressure detection device is characterized in that, the device is composed of a brush clamp and a pressure detection two parts, and the brush clamp is composed of an adjustment bracket, a slider, a folded angle plate, a clamp positioning plate, It is composed of quick clamps. The positioning plate is composed of positioning rods and fixed plates on both sides. The clamp positioning plate can adjust the internal structure of the positioning plate according to the different sizes of the brushes to meet the requirements of different sizes of brushes. Positioning function, the slider can be adjusted at different heights, and can be used with the brush wire pressure detection part to perform pressure detection on brush wires of different sizes. It is composed of electric lift table, electric displacement table, electric rotary table, manual displacement table, pressure sensor, sensor base and copy contact. The pressure measuring part can be adjusted according to different types of conductive slip rings, using copy contact The contact pressure of the brush wire is simulated and detected, and the brush fixture and the pressure detection part of the device are respectively installed on the optical platform to ensure the accuracy and stability of the pressure detection.

2. An electric brush wire contact pressure detection device, characterized in that the bottom of the adjustment bracket is installed on the optical platform, and the distance between the two adjustment brackets can be adjusted appropriately to meet the requirements of the subsequent steps regarding the installation of the electric brush. The upper part of the adjustment bracket is a circular rod, the size of which is the same as the size of the circular hole of the slider. The slider is installed on the circular rod of the adjustment bracket, and is clamped and fixed by the clamping knob. At the same time, the height can be adjusted.

3. An electric brush wire contact pressure detection device, characterized in that, the fixture positioning plate is mounted on the slider through a corner plate, and the corner plate and the positioning plate are respectively machined with oblong holes, which can be adjusted horizontally and further drive The brushes are fine-tuned horizontally to meet the needs of different position adjustment during pressure detection. The positioning rods inside the positioning plate are installed on the fixing plates on both sides of the positioning plate through bolts. For brushes of different sizes, the bottom of the brush is The sizes of the positioning grooves are also different. The positioning plate in the device can be changed by replacing the positioning rods of different sizes. The positioning function of the brushes of the model.

4. A brush wire contact pressure detection device, characterized in that, quick clamps are installed on the fixed plates on both sides of the positioning plate, and the quick clamps can realize the quick clamping function of the brush, and the quick clamp can be used for the electric brush. When the brush is installed, it is only necessary to align the positioning groove at the bottom of the brush with the positioning plate for positioning, and then clamp the quick clamp. The length of the clamping arm of the clamp and the contact between the clamping contact and the brush The distance can be adjusted, and the clamping force can be adjusted according to different types of brushes to further realize the clamping function of the brushes.

5. An electric brush wire contact pressure detection device, characterized in that the electric lifting platform is installed on an optical platform, and the specific position is directly below the fixture positioning platform, an electric displacement platform is installed above the lifting platform, and the electric displacement platform slides An electric rotary table is installed on the block, and the three devices can be connected together with a motion controller, and through the precise control of the controller, the up and down, left and right and circular movements of the rotary table can be realized.

6. An electric brush wire contact pressure detection device, characterized in that, a manual displacement stage is installed on the table top of the electric rotary table through bolts, a pressure sensor is installed on the slider of the displacement table through a sensor base, and an imitation is installed above the pressure sensor. The function of the manual displacement stage is to adjust the distance from the copy contact to the center of rotation, in which the manual displacement table can be finely adjusted to further fine-tune the distance from the copy contact to the center of rotation, thereby simulating different models. The size of the conductive slip ring.

7. An electric brush wire contact pressure detection device, characterized in that, a trapezoidal groove is machined above the profile contact and the brush wire contact surface, and the size of the groove is the same as the groove size of the conductive slip ring ring body. The same, and the material of the profiling contact is the same as that of the conductive slip ring body, which further simulates the contact environment between the slip ring and the brush wire, and the profiling contact can be replaced according to different types of slip ring bodies.

8. A brush wire contact pressure detection device, characterized in that the device can automatically detect the brush wire pressure through automatic control, and can be controlled by controlling an electric lifting table, an electric displacement table, and an electric rotary table. The contact between the copy contact and the brush wire can be further accurately simulated by adjusting the manual displacement table to further simulate the actual size of the conductive slip ring. The best contact pressure value, further, through automatic control, the detection function of the contact pressure value of the entire row of brush wires of the electric brush wire can be realized.