CN114792918A - Stable-contact high-low voltage ring electric brush - Google Patents
Stable-contact high-low voltage ring electric brush Download PDFInfo
- Publication number
- CN114792918A CN114792918A CN202210356801.6A CN202210356801A CN114792918A CN 114792918 A CN114792918 A CN 114792918A CN 202210356801 A CN202210356801 A CN 202210356801A CN 114792918 A CN114792918 A CN 114792918A
- Authority
- CN
- China
- Prior art keywords
- limiting
- brush
- carbon brush
- side walls
- low voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 63
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 63
- 238000009434 installation Methods 0.000 claims abstract description 21
- 239000004020 conductor Substances 0.000 claims abstract description 18
- 239000000203 mixture Substances 0.000 claims 1
- 239000002994 raw material Substances 0.000 claims 1
- 238000005299 abrasion Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/18—Contacts for co-operation with commutator or slip-ring, e.g. contact brush
- H01R39/24—Laminated contacts; Wire contacts, e.g. metallic brush, carbon fibres
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/08—Slip-rings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/18—Contacts for co-operation with commutator or slip-ring, e.g. contact brush
- H01R39/26—Solid sliding contacts, e.g. carbon brush
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/38—Brush holders
- H01R39/381—Brush holders characterised by the application of pressure to brush
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/38—Brush holders
- H01R39/40—Brush holders enabling brush movement within holder during current collection
Landscapes
- Motor Or Generator Current Collectors (AREA)
Abstract
The invention discloses a stable-contact electric brush for high and low voltage rings, which comprises a fixed unit and a carbon brush, wherein the fixed unit comprises a fixed frame and an elastic assembly arranged on the fixed frame; the carbon brush is arranged in the first mounting area of the fixing frame and comprises a conductor block and convex columns arranged on two sides of the conductor block; the fixing unit is an outer shell part of the electric brush, so that the limiting installation of the carbon brush can be guaranteed, continuous and stable pressure can be applied to the carbon brush in a lever action manner along with the abrasion of the carbon brush through the arranged elastic component, and the elastic component has the characteristic of convenience in elastic force adjustment; and through set up the locating part on the shell, when keeping spacing to the carbon brush, also have the extrusion force downwards to the carbon brush to ensured in the complete life cycle of carbon brush, have all the time with the good contact effect of sliding ring.
Description
Technical Field
The invention relates to the technical field of electric brushes with high and low pressure rings, in particular to an electric brush with stable contact for a high and low pressure ring.
Background
The high-low voltage loop is an important electrical element on the electric shovel and has the function of leading a high-voltage power supply at the lower part of the electric shovel to the upper part of the electric shovel through the slip ring and the carbon brush, so that a lead is not wound when the electric shovel rotates. Meanwhile, the low-voltage control power supply and the walking power supply on the upper part are conducted to the electrical appliance element and the motor on the lower part through the conductive carbon brush and the slip ring, so that the electric shovel walks.
However, with the long-term use of the electric shovel, the slip ring and the electric brush are abraded due to long-term friction, the carbon brush is shortened, the existing compression spring is made of soft steel sheets, pressure generated by the soft steel sheets under the action of long-term stress is reduced, the electric brush is shortened and insufficient pressure causes poor contact between the electric brush and the slip ring, electrical faults are easily caused due to virtual connection of the carbon brush and the slip ring, electric sparks are easily generated, arc short circuit is caused, and the slip ring is burnt or even a fire disaster is caused.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The invention is provided in view of the problems of the prior brush on the high-low voltage ring.
Therefore, the invention aims to provide a high-low pressure ring brush with stable contact, which aims to solve the problems of poor electric conduction caused by insufficient working pressure of a pressure spring due to the fact that the abrasion of a carbon brush is shortened, and sparks and ring fire are generated between the carbon brush and a slip ring.
In order to solve the technical problems, the invention provides the following technical scheme: a high-low voltage ring electric brush with stable contact comprises a fixed unit and a carbon brush, wherein the fixed unit comprises a fixed frame and an elastic component arranged on the fixed frame, the elastic component is arranged in a second mounting area of the fixed frame and comprises a movable frame and an elastic piece arranged on the movable frame; and the carbon brush is arranged in the first mounting area of the fixing frame and comprises a conductor block and convex columns arranged on two sides of the conductor block.
As a preferable aspect of the brush for a high-low voltage ring with stable contact according to the present invention, wherein: the fixing frame is also provided with a first mounting area and a stress supporting area, and the first mounting area and the second mounting area are arranged on two sides of the stress supporting area; the first installation area comprises a carbon brush placing groove, connecting ribs vertically arranged on the outer side of the carbon brush placing groove and limiting parts symmetrically arranged on two sides of the carbon brush placing groove.
As a preferable aspect of the brush for high and low voltage rings with stable contact according to the present invention, wherein: open grooves are formed in the two side walls of the carbon brush placing groove in the vertical direction, and the notches of the open grooves are located at the top of the side walls of the carbon brush placing groove.
As a preferable aspect of the brush for a high-low voltage ring with stable contact according to the present invention, wherein: the outer side walls of two sides of the first installation area are also provided with limiting chutes and connecting columns, the limiting chutes and the connecting columns are symmetrically distributed on two sides of the open slot, and the connecting columns are located on one side, far away from the open slot, of the limiting chutes; the length of the groove cavity of the limiting sliding groove is smaller than that of the open groove.
As a preferable aspect of the brush for high and low voltage rings with stable contact according to the present invention, wherein: the limiting part comprises elastic telescopic rods which are symmetrically arranged, each elastic telescopic rod comprises an external connecting pipe, a spring, an extension rod and an arc-shaped plate, one end of each external connecting pipe is connected to the corresponding connecting column, the spring is arranged in the inner cavity of the corresponding external connecting pipe, the other end of each extension rod is slidably arranged in the inner cavity of the corresponding external connecting pipe, and the arc-shaped plate is arranged at the free end of the corresponding extension rod; the outer side wall of the free end of the extension rod is further provided with a limiting convex block, and the limiting convex block can slide in the limiting sliding groove in a matched mode.
As a preferable aspect of the brush for high and low voltage rings with stable contact according to the present invention, wherein: the stress supporting area comprises a supporting tower frame, and two side walls of the supporting tower frame are provided with opening limiting grooves; the notch of the opening limiting groove is perpendicular to the vertical direction of the support tower, and the opening height of the opening limiting groove is larger than that of the conductor block.
As a preferable aspect of the brush for high and low voltage rings with stable contact according to the present invention, wherein: the second installing area comprises a connecting platform arranged on the side wall of the top of the fixing frame, a second open slot arranged on the connecting platform and limit slots arranged on the side walls of the two sides of the fixing frame.
As a preferable aspect of the brush for high and low voltage rings with stable contact according to the present invention, wherein: the elastic component further comprises a stress plate and a pressing head arranged at one end of the stress plate, the stress plate is close to two side walls of the pressing head, and rotating columns are arranged on the two side walls of the pressing head and can be installed in the opening limiting grooves in a matched mode.
As a preferable aspect of the brush for high and low voltage rings with stable contact according to the present invention, wherein: the movable frame comprises a movable plate, connecting arms symmetrically arranged on the side walls of the end parts of the movable plate, and limiting columns arranged on the adjacent side walls of the two connecting arms; a threaded hole is formed in the side wall of the movable plate; the limiting column can be matched with and slide in the limiting groove.
As a preferable aspect of the brush for a high-low voltage ring with stable contact according to the present invention, wherein: the elastic piece comprises a screw rod, a mounting plate arranged at the free end of the screw rod and a spring with one end mounted on the mounting plate; the screw rod can be matched and rotated in the threaded hole and can be contained in the second open slot; the spring is kept away from the one end of mounting panel has the couple, the couple can articulate in the atress board is kept away from the one end of press head.
The invention has the beneficial effects that:
the fixing unit is an outer shell part of the electric brush, so that the limiting installation of the carbon brush can be guaranteed, continuous and stable pressure can be applied to the carbon brush in a leverage mode along with the abrasion of the carbon brush through the arranged elastic component, and the electric brush has the characteristic of convenience in elastic force adjustment; and through set up the locating part on outer housing, when keeping spacing to the carbon brush, also have the extrusion force downwards to the carbon brush to ensured the complete life cycle at the carbon brush, have all the time with the good contact effect of sliding ring.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
fig. 1 is a schematic view of the overall structure of a stable-contact brush for high and low voltage rings according to the present invention.
Fig. 2 is a schematic view of the whole structure of the brush holder for high and low voltage rings with stable contact according to the present invention.
Fig. 3 is a schematic view of the external structure of the holder for the brush for the high-low voltage ring with stable contact according to the present invention.
Fig. 4 is a schematic diagram of the whole side view and a partial enlarged structure of the brush for high and low voltage rings with stable contact according to the present invention.
Fig. 5 is a partial K enlarged structural diagram of the brush for high and low voltage rings with stable contact according to the present invention.
Fig. 6 is a schematic diagram of an overall explosion structure of the brush for high and low voltage rings with stable contact according to the present invention.
Fig. 7 is a schematic view of an overall half-section plan structure of the brush for high and low voltage rings with stable contact according to the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Furthermore, the present invention is described in detail with reference to the drawings, and in the detailed description of the embodiments of the present invention, the cross-sectional view illustrating the structure of the device is not enlarged partially according to the general scale for convenience of illustration, and the drawings are only exemplary and should not be construed as limiting the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
Example 1
Referring to fig. 1, in a first embodiment of the present invention, a high-low voltage ring brush with stable contact is provided, and the brush includes a fixing unit 100 and a carbon brush 200, wherein the fixing unit 100 is used for limited installation of the carbon brush 200, and applies a downward continuous pressure to the carbon brush 200, so as to ensure that the lower end of the carbon brush 200 can be continuously and stably contacted with a slip ring, thereby maintaining that a high voltage power supply at the lower part of an electric shovel can be continuously led to the upper part of the electric shovel.
Specifically, the fixing unit 100 includes a fixed frame 101 and an elastic component 102 disposed on the fixed frame 101, and the elastic component 102 is disposed in a second mounting area 101c of the fixed frame 101, and includes a movable frame 102a and an elastic element 102b disposed on the movable frame 102 a; the fixing frame 101 is an integrated outer shell structure, and is divided into three sections for convenience of description, wherein the first section is a first mounting area 101a, the middle section is a stress supporting area 101b, and the third section is a second mounting area 101 c; the carbon brush 200 is installed in the first installation region 101a, the elastic assembly 102 is installed in the second installation region 101c, and a lever structure is formed by the stress supporting region 101b and the carbon brush 200 in the first installation region 101a, so that a continuous and stable downward pressure is applied to the installed carbon brush 200.
The carbon brush 200 is disposed in the first mounting region 101a of the fixing frame 101, and includes a conductor block 201 and convex pillars 202 disposed on two sides of the conductor block 201. The carbon brush 200 has the same effect as a conventional carbon brush and is in contact with the slip ring through the lower end; however, the structure is different, that is, the convex columns 202 perpendicular to the side walls of the conductor 201 are additionally arranged on the two side walls of the conductor 201 and are used for matching with the limiting pieces 101a-3 to realize pressurization and limiting.
Example 2
Referring to fig. 1, a second embodiment of the present invention, which is different from the first embodiment, is: the fixing frame 101 further has a first mounting region 101a and a stress supporting region 101b, and the first mounting region 101a and the second mounting region 101c are respectively disposed at both sides of the stress supporting region 101 b.
The first mounting area 101a includes a carbon brush placement groove 101a-1, a connecting rib 101a-2 vertically disposed outside the carbon brush placement groove 101a-1, and stoppers 101a-3 symmetrically disposed at both sides of the carbon brush placement groove 101 a-1.
The two side walls of the carbon brush placement groove 101a-1 are opened with an open groove 101a-11 in the vertical direction, and the notch of the open groove 101a-11 is positioned at the top of the side wall of the carbon brush placement groove 101 a-1.
The outer side walls of two sides of the first installation area 101a are also provided with limiting chutes 101a-12 and connecting columns 101a-13, the limiting chutes 101a-12 and the connecting columns 101a-13 are symmetrically distributed on two sides of the open slots 101a-11, and the connecting columns 101a-13 are positioned on one sides of the limiting chutes 101a-12 far away from the open slots 101 a-11; the length of the cavity of the limiting chutes 101a-12 is smaller than that of the open grooves 101 a-11.
The limiting pieces 101a-3 comprise elastic telescopic rods T which are symmetrically arranged, each elastic telescopic rod T comprises an external connecting pipe T1, a spring T2, an extension bar T3 and an arc-shaped plate T4, wherein one end of each external connecting pipe T1 is connected to the corresponding connecting column 101a-13, the spring T2 is arranged in the inner cavity of the external connecting pipe T1, one end of each extension bar T3 is slidably arranged in the inner cavity of the external connecting pipe T1, and the arc-shaped plates T4 are arranged at the free ends of the extension bars T3; the outer side wall of the free end of the extension rod T3 is also provided with a limiting lug T5, and the limiting lug T5 can be matched and slide in the limiting slide grooves 101 a-12.
The stress supporting area 101b comprises a supporting tower 101b-1, and two side walls of the supporting tower 101b-1 are provided with opening limiting grooves 101 b-2; the notch of the opening limiting groove 101b-2 is vertical to the vertical direction of the supporting tower 101b-1, and the opening height of the opening limiting groove 101b-2 is larger than the height of the conductor block 201.
The second mounting area 101c includes a connecting platform 101c-1 disposed on the top side wall of the fixing frame 101, a second opening groove 101c-2 opened on the connecting platform 101c-1, and a limiting groove 101c-3 opened on the side walls of the fixing frame 101.
Compared with embodiment 1, further, the main body portion of the first mounting area 101a is a carbon brush placement groove 101a-1 for placing the carbon brush 200, and the placement groove penetrates up and down to match the shape of the carbon brush 200. The connecting ribs 101a-2 are located on the side wall of the end of the first mounting area 101a and are used for fixing the whole housing on a fixing frame outside the slip ring. The stoppers 101a-3 on both sides are used for installation of the carbon brush 200 and pressurization after installation.
Furthermore, the open slot 101a-11 is opened on two side walls of the carbon brush placement 101a-1, and the notch of the open slot is upward, so that the convex columns 202 on two sides of the conductor 201 can be conveniently placed; the open grooves 101a-11 are long, and the bottom of the groove length is the maximum wear depth of the carbon brush 200.
Furthermore, the limiting member 101a-3 can be a device with elastic expansion capability, and in the embodiment, an elastic expansion rod T is used, specifically, a spring T2 is installed in the external connection pipe T1, one end of the extension rod T3 extends into the cavity of the external connection pipe T1 and presses the end of the spring T2, the other end of the extension rod T3 is fixed with an arc-shaped plate T4, the side wall of the end is further provided with a limiting projection T5, the limiting projection T5 can be matched and slide in the limiting sliding groove 101a-12, one end of the external connection pipe T1 is connected to the connection column 101a-13, and in the case of two-point limiting, the total length of the external connection pipe T1 and the extension rod T3 can be changed. It should be noted that the shortest length of the flexible telescopic rod T is the vertical distance from the connecting columns 101a-13 to the open slots 101a-11, and the distance from the connecting columns 101a-13 to the tops of the limiting sliding slots 101a-12 is less than the distance from the connecting columns 101a-13 to the bottoms of the limiting sliding slots 101 a-12. It should be further noted that the radian of the arc-shaped plates T4 is less than 180 degrees, and when the two sets of elastic telescopic rods T are at the highest point at the same time, the distance between the upper end side walls of the two arc-shaped plates T4 is farthest and not less than the maximum diameter of the convex pillar 202, and when the two sets of elastic telescopic rods T are at the lowest point at the same time, the upper end side wall edges of the two arc-shaped plates T4 just can be contacted.
The limiting chutes 101a-12 and the connecting columns 101a-13 are symmetrically distributed on two sides of the open slots 101a-11, the connecting columns 101a-13 are further away from the open slots 101a-11, the limiting chutes 101a-12 are used for limiting the overall telescopic length of the limiting pieces 101a-3, and the connecting columns 101a-13 are used for installing the limiting pieces 101 a-3.
The main body of the stress supporting area 101b is a supporting tower frame 101b-1, the height of the stress supporting area is larger than that of the carbon brushes 200, a groove cavity is formed in the upper end of the supporting tower frame 101b-1, placement and limiting of the stress plate 102a in the elastic assembly 102 are facilitated, an opening limiting groove 101b-2 is formed in the side wall of the upper end of the supporting tower frame 101b-1, the groove opening is perpendicular to the height direction of the supporting tower frame 101b-1 and faces towards the second installation area 101c, and the purpose of facilitating placement of the stress plate 102a is achieved. The opening height of the opening limiting groove 101b-2 is larger than that of the conductor block 201, so that the middle end of the stress plate 102a is limited in the opening limiting groove 101b-2, and two ends of the stress plate are supported by the opening limiting groove 101b-2 to form a lever structure.
The second mounting region 101c mounts the elastic member 102 by providing a connection stage 101c-1 on the top sidewall of the fixed frame 101 to enable a forward pressure of the other end by applying a reverse elastic force to one end of the force-bearing plate 102 a.
The rest of the structure is the same as that of embodiment 1.
Example 3
Referring to fig. 1, a third embodiment of the present invention is different from the second embodiment in that: the elastic component 102 further comprises a stress plate 102c and a pressing head 102d arranged at one end of the stress plate 102c, wherein the stress plate 102c is provided with a rotating column 102c-1 on two side walls close to the pressing head 102d, and the rotating column 102c-1 can be arranged in the opening limiting groove 101b-2 in a matching manner.
The movable frame 102a comprises a movable plate 102a-1, connecting arms 102a-2 symmetrically arranged on the side walls of the end parts of the movable plate 102a-1, and limiting columns 102a-3 arranged on the adjacent side walls of the two connecting arms 102 a-2; a threaded hole L is formed in the side wall of the movable plate 102 a-1; the position-limiting columns 102a-3 can be matched and slide in the position-limiting grooves 101 c-3.
The elastic part 102b comprises a screw 102b-1, a mounting plate 102b-2 arranged at the free end of the screw 102b-1, and a spring 102b-3 with one end mounted on the mounting plate 102 b-2; the screw rod 102b-1 can be matched and rotated in the threaded hole L and can be contained in the second open groove 101 c-2; the end of the spring 102b-3 away from the mounting plate 102b-2 is provided with a hook G which can be hung at the end of the stress plate 102a away from the pressing head 102 b.
Compared with embodiment 2, further, in the elastic assembly 102, the pressing heads 102d and the elastic pieces 102b are respectively disposed at two ends of the stress plate 102c, the pressing heads 102d are used for increasing the pressing area of the carbon brush 200, and the elastic pieces 102b are mounted at the end of the second mounting region 101c through the movable frame 102 a. Further, the width of the movable plate 102a-1 in the movable frame 102a is greater than the width of the second installation area 101c in the fixed frame 101, and two ends of the movable frame are provided with connecting plates as connecting arms 102a-2, and one end of the connecting arm 102a-2 away from the movable plate 102a-1 is movably connected in limiting grooves 101c-3 formed in two side walls of the second installation area 101c through limiting posts 102a-3, which are installed, so that the connecting relationship facilitates the position adjustment of the movable frame 102a, i.e., the movable plate 102a-1 can be vertically placed on the top side wall of the second installation area 101c, or the movable plate 102a-1 can be deflected to one side of the second installation area 101c, so as to provide a stretching state or an initial state for the spring 102b-3 in the elastic member 102 b.
It should be noted that the distance from the elastic member 102b to the supporting tower 101b-1 is greater than the distance from the pressing head 102d to the supporting tower 101b-1, i.e., the moment on the force-bearing plate 102c at the side of the spring 102b-3 is greater than the moment on the force-bearing plate 102c at the side of the pressing head 102 d.
The rest of the structure is the same as that of embodiment 2.
Referring to fig. 1 to 7, in an initial state, the elastic telescopic rods T with symmetrical sides are located at the top of the limiting sliding grooves 101a-12 at one end of the arc-shaped plate T4, the conductive body 201 is placed from the notch of the carbon brush placement groove 101a-1, the convex columns 202 at the two sides of the conductive body are kept in the open grooves 101a-11, when the convex columns 202 contact the two arc-shaped plates T4, the elastic telescopic rods T are pushed to deflect, the limiting bumps T5 slide in the limiting sliding grooves 101a-12, so that the spring T2 is compressed, the overall length of the elastic telescopic rods T is shortened, and the convex columns 202 continuously slide towards the bottoms of the open grooves 101a-11 until the bottoms of the placed carbon brushes 200 contact the surface of the slip ring; then, the rotating column 102c-1 on the side wall of the middle part of the stress plate 102c is placed in the opening limiting groove 101b-2, so that the pressing head 102d is contacted with the top of the carbon brush 200, and the other end of the stress plate 102c is hooked with the hook G at the lower end of the spring 102 b-3. The movable frame 102a is moved so that the movable frame 102a rotates around the limiting post 102a-3 and finally falls on the top side wall of the second installation area 101c of the fixed frame 101, the spring 102b-3 is stretched, and downward pressure is applied to the carbon brush 200 through the stress plate 102c and the pressing head 102 d. And the elastic force of the spring 102b-3 can be adjusted by changing the installation height of the spring 102b-3 by rotating the screw 102 b-1.
As the carbon brush 200 is worn during use, the height of the conductor 201 is shortened, and firstly, the symmetrically arranged elastic telescopic rods T can extend, and downward pressure is applied to the conductor 201 by pushing the convex columns 202 to slide towards the bottoms of the open grooves 101a to 11; meanwhile, the height of the conductor 201 is shortened due to the lever action of the stress plate 102c, and the spring 102b-3 is shortened to change the elastic force and keep the balance of the lever in order to keep the balance of the lever. The carbon brush 200 is applied with a nonlinear pressure by two sets of pressures. The problem of pressure is not enough applied to the carbon brush by a pressure spring in the existing electric brush is solved.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should 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 of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a stable high low pressure of contact brush for ring which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the fixing unit (100) comprises a fixed frame (101) and an elastic component (102) arranged on the fixed frame (101), wherein the elastic component (102) is arranged in a second installation area (101c) of the fixed frame (101) and comprises a movable frame (102a) and an elastic piece (102b) arranged on the movable frame (102 a);
and the carbon brush (200) is arranged in the first mounting area (101a) of the fixing frame (101) and comprises a conductor block (201) and convex columns (202) arranged on two sides of the conductor block (201).
2. The contact-stabilized brush for high and low voltage rings according to claim 1, wherein: the fixing frame (101) is also provided with a first mounting area (101a) and a stress supporting area (101b), and the first mounting area (101a) and the second mounting area (101c) are respectively arranged at two sides of the stress supporting area (101 b);
the first mounting area (101a) comprises a carbon brush placing groove (101a-1), connecting ribs (101a-2) vertically arranged on the outer side of the carbon brush placing groove (101a-1) and limiting pieces (101a-3) symmetrically arranged on two sides of the carbon brush placing groove (101 a-1).
3. The contact-stabilized brush for high and low voltage rings according to claim 2, wherein: open grooves (101a-11) are formed in two side walls of the carbon brush placing groove (101a-1) along the vertical direction, and notches of the open grooves (101a-11) are located at the top of the side walls of the carbon brush placing groove (101 a-1).
4. The contact-stabilized brush for high and low voltage rings according to claim 3, wherein: the outer side walls of two sides of the first installation area (101a) are further provided with limiting sliding grooves (101a-12) and connecting columns (101a-13), the limiting sliding grooves (101a-12) and the connecting columns (101a-13) are symmetrically distributed on two sides of the open slots (101a-11), and the connecting columns (101a-13) are located on one sides, far away from the open slots (101a-11), of the limiting sliding grooves (101 a-12);
the length of the groove cavity of the limiting sliding grooves (101a-12) is smaller than that of the open grooves (101 a-11).
5. The brush according to claim 4, wherein: the limiting pieces (101a-3) comprise elastic telescopic rods (T) which are symmetrically arranged, each elastic telescopic rod (T) comprises an external connecting pipe (T1) with one end connected to the connecting columns (101a-13), a spring (T2) arranged in the inner cavity of the external connecting pipe (T1), an extension bar (T3) with one end arranged in the cavity of the external connecting pipe (T1) in a sliding mode, and an arc-shaped plate (T4) arranged at the free end of the extension bar (T3);
the outer side wall of the free end of the extension rod (T3) is further provided with a limiting bump (T5), and the limiting bump (T5) can be matched and slide in the limiting sliding grooves (101 a-12).
6. The stable-contact high-low voltage ring brush according to any one of claims 2 to 5, characterized in that: the stress supporting area (101b) comprises a supporting tower (101b-1), and two side walls of the supporting tower (101b-1) are provided with opening limiting grooves (101 b-2);
the notch of the opening limiting groove (101b-2) is perpendicular to the vertical direction of the supporting tower (101b-1), and the opening height of the opening limiting groove (101b-2) is larger than that of the conductor block (201).
7. The brush according to claim 6, wherein: the second installation area (101c) comprises a connecting platform (101c-1) arranged on the side wall of the top of the fixing frame (101), a second open groove (101c-2) formed in the connecting platform (101c-1), and limiting grooves (101c-3) formed in the side walls of the two sides of the fixing frame (101).
8. The brush according to claim 7, wherein: the elastic component (102) further comprises a stress plate (102c) and a pressing head (102d) arranged at one end of the stress plate (102c), two side walls, close to the pressing head (102d), of the stress plate (102c) are provided with rotating columns (102c-1), and the rotating columns (102c-1) can be installed in the opening limiting grooves (101b-2) in a matched mode.
9. The brush according to claim 8, wherein: the movable frame (102a) comprises a movable plate (102a-1), connecting arms (102a-2) symmetrically arranged on the side walls of the end parts of the movable plate (102a-1), and limiting columns (102a-3) arranged on the adjacent side walls of the two connecting arms (102 a-2);
a threaded hole (L) is formed in the side wall of the movable plate (102 a-1);
the limiting columns (102a-3) can be matched and slide in the limiting grooves (101 c-3).
10. The contact stabilized brush for high and low voltage rings of claim 9, wherein: the elastic piece (102b) comprises a screw rod (102b-1), a mounting plate (102b-2) arranged at the free end of the screw rod (102b-1), and a spring (102b-3) with one end mounted on the mounting plate (102 b-2);
the screw rod (102b-1) can be matched and rotated in the threaded hole (L) and can be contained in the second opening groove (101 c-2);
one end of the spring (102b-3) far away from the mounting plate (102b-2) is provided with a hook (G), and the hook (G) can be hung at one end of the stress plate (102c) far away from the pressing head (102 b).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210356801.6A CN114792918B (en) | 2022-03-31 | 2022-03-31 | High-low voltage ring brush with stable contact |
| LU503796A LU503796B1 (en) | 2022-03-31 | 2023-03-30 | An electric brush for high and low voltage ring with stable contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210356801.6A CN114792918B (en) | 2022-03-31 | 2022-03-31 | High-low voltage ring brush with stable contact |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114792918A true CN114792918A (en) | 2022-07-26 |
| CN114792918B CN114792918B (en) | 2023-05-23 |
Family
ID=82462585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210356801.6A Active CN114792918B (en) | 2022-03-31 | 2022-03-31 | High-low voltage ring brush with stable contact |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114792918B (en) |
| LU (1) | LU503796B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115663550A (en) * | 2022-09-07 | 2023-01-31 | 中国科学院电工研究所 | Pressure-adjustable carbon brush pressing mechanism |
| WO2023185091A1 (en) * | 2022-03-31 | 2023-10-05 | 华能伊敏煤电有限责任公司 | Electric brush having pressure compensation for high-low voltage ring |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0455253A2 (en) * | 1990-05-04 | 1991-11-06 | Schunk Metall und Kunststoff GmbH | Brush holder |
| CN104813547A (en) * | 2012-09-28 | 2015-07-29 | 法雷奥电机设备公司 | Brush box for electric machine brush-holder and corresponding brush-holder |
| CN108233135A (en) * | 2016-12-22 | 2018-06-29 | 罗伯特·博世有限公司 | For the brush holders of motor |
| CN108352754A (en) * | 2015-10-26 | 2018-07-31 | 博泽沃尔兹堡汽车零部件有限公司 | The brush-system of motor |
| US20210126415A1 (en) * | 2019-10-25 | 2021-04-29 | Transportation Ip Holdings, Llc | Brush holder assembly and method |
-
2022
- 2022-03-31 CN CN202210356801.6A patent/CN114792918B/en active Active
-
2023
- 2023-03-30 LU LU503796A patent/LU503796B1/en active IP Right Grant
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0455253A2 (en) * | 1990-05-04 | 1991-11-06 | Schunk Metall und Kunststoff GmbH | Brush holder |
| CN104813547A (en) * | 2012-09-28 | 2015-07-29 | 法雷奥电机设备公司 | Brush box for electric machine brush-holder and corresponding brush-holder |
| CN108352754A (en) * | 2015-10-26 | 2018-07-31 | 博泽沃尔兹堡汽车零部件有限公司 | The brush-system of motor |
| CN108233135A (en) * | 2016-12-22 | 2018-06-29 | 罗伯特·博世有限公司 | For the brush holders of motor |
| US20210126415A1 (en) * | 2019-10-25 | 2021-04-29 | Transportation Ip Holdings, Llc | Brush holder assembly and method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023185091A1 (en) * | 2022-03-31 | 2023-10-05 | 华能伊敏煤电有限责任公司 | Electric brush having pressure compensation for high-low voltage ring |
| CN115663550A (en) * | 2022-09-07 | 2023-01-31 | 中国科学院电工研究所 | Pressure-adjustable carbon brush pressing mechanism |
| CN115663550B (en) * | 2022-09-07 | 2023-12-08 | 中国科学院电工研究所 | Carbon brush hold-down mechanism with adjustable pressure |
Also Published As
| Publication number | Publication date |
|---|---|
| LU503796B1 (en) | 2023-10-02 |
| CN114792918B (en) | 2023-05-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114792918A (en) | Stable-contact high-low voltage ring electric brush | |
| CN114784584A (en) | High-low pressure ring electric brush with pressure compensation | |
| CN110364658A (en) | A kind of forklift battery of antidetonation shatter-resistant | |
| CN201094128Y (en) | Keyboard press-key structure | |
| CN207667887U (en) | A kind of positioning fixture of insulating part | |
| CN112040710B (en) | Epoxy resin PCB circuit board | |
| CN210696506U (en) | Computer desk with stable placement | |
| CN214795051U (en) | Chip capacitor aging tester and device | |
| CN115613976A (en) | Special pipe fitting bearing system and method for oil drilling | |
| CN110864852B (en) | Cable connector performance detection equipment | |
| CN210040913U (en) | Novel electric power cabinet convenient to installation and lift by crane | |
| CN217087263U (en) | Fixing device of electrical equipment | |
| CN208781744U (en) | One kind is dust-proof to use microswitch | |
| CN110785034A (en) | Self-locking structure based on sliding groove guide rail | |
| CN219831144U (en) | Electric power detects strutting arrangement | |
| CN213457029U (en) | Vertical support frame for high-voltage test of generator | |
| CN220080463U (en) | Suspended ceiling structure suspended ceiling | |
| CN213581220U (en) | Cable detects with stable oscillatory wave partial discharge tester | |
| CN220400461U (en) | Pluggable fixing structure of pluggable ultrathin mechanical keyboard switch | |
| CN211628896U (en) | Solid-state capacitor with strong pressure resistance | |
| CN210378793U (en) | Pedal fine-tuning switch | |
| CN211853272U (en) | Fixing mechanism for teaching projector | |
| CN212365794U (en) | Key switch | |
| CN207786895U (en) | A kind of positioning fixture of insulating part | |
| CN207441537U (en) | A kind of microswitch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |