CN209881049U - Electric brush structure mounted in trolley conductor current collector - Google Patents
Electric brush structure mounted in trolley conductor current collector Download PDFInfo
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- CN209881049U CN209881049U CN201920214711.7U CN201920214711U CN209881049U CN 209881049 U CN209881049 U CN 209881049U CN 201920214711 U CN201920214711 U CN 201920214711U CN 209881049 U CN209881049 U CN 209881049U
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- brush
- constant force
- current collector
- coil spring
- brush holder
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Abstract
The utility model discloses an install brush structure in wiping line current collector, relate to wiping line technical field, including current collector casing and brush, be equipped with the fixed recess of brush in the current collector casing, be fixed with the direction brush holder in the fixed recess of brush, one side of direction brush holder is equipped with the open slot, the card is equipped with constant force drive spring assembly in the open slot, constant force drive spring assembly includes constant force coil spring and the L type fixed bolster through the rivet riveting together, the constant force coil spring is placed in the cavity of direction brush holder, it is equipped with the brush still to slide the cover in the cavity of direction brush holder, the bottom surface that the brush was pushed away in the contact of constant force coil spring, one side of brush is equipped with the direction spout, the cylindrical end portion sliding fit of direction spout and rivet. The utility model can lead the electric brush to have good guiding during the telescopic motion, is not easy to be inclined and jammed, and is not easy to be worn; the constant-force spring driving structure can provide balanced driving force, and is favorable for stable and reliable power supply of the sliding contact line in the movement process.
Description
Technical Field
The utility model relates to a wiping line technical field, in particular to install brush structure in wiping line current collector.
Background
In the building construction process, need use construction elevator to carry material, construction elevator can only drive need to connect the power supply circuit, and can not set up dedicated power supply line and give construction elevator power supply usually in the building construction process, all adopt the wiping line to give construction elevator power supply usually, the wiping line is a plurality of conductive tracks of laying in parallel along construction elevator orbit, and can sliding connection conductive track and the current collector of getting the electricity are installed to construction elevator, just can be for the incessant power supply of construction elevator that goes up and down to remove through current collector and wiping line sliding fit like this.
The current collector is provided with an electric brush which is in sliding contact with the sliding contact line, and the electric brush is made of graphite, so the electric brush is also called a carbon brush. An electric brush in an existing collector is generally a block-shaped structure with a rectangular structure, one end of the electric brush is installed in a collector shell, the other end of the electric brush is exposed out of the collector shell, a compression spring is installed between the collector shell and the electric brush, the electric brush is pushed towards a trolley conductor outside the collector shell by the compression spring, a certain contact pressure is kept between contact surfaces of the electric brush and the trolley conductor, and therefore connection and power supply between the electric brush and the trolley conductor are achieved. The structure adopts the compression spring to push the electric brush, the contact pressure can change along with the change of the telescopic stroke of the compression spring, and in the lifting motion process of the construction elevator, because the electric brush and the sliding contact line are influenced by the processing precision and the installation precision, the distance between the contact surfaces of the electric brush and the sliding contact line is difficult to ensure uniformity, the telescopic stroke of the compression spring for driving the electric brush is also continuously changed, the contact pressure between the electric brush and the sliding contact line is fluctuated, the abrasion of the electric brush is easy to aggravate due to the change of the contact pressure, and the stable and reliable power supply is not facilitated.
In addition, because the collector still needs the whole slip when the brush constantly stretches out and draws back in the collector, the brush still constantly stands the side direction atress that the wiping line guide rail was applyed at the concertina movement in-process, consequently need have reliable direction just can guarantee that the brush can be stable flexible, and only set up a direction holding tank installation brush in the current collector usually, its direction effect is relatively poor, the easy skew one side of deviant of brush, the brush wearing and tearing also aggravate easily, the brush dust after the wearing and tearing can further be accumulated between collector and brush, further influence the use of brush.
Further improvements are needed to address the above problems with the prior art.
SUMMERY OF THE UTILITY MODEL
(1) Technical problem to be solved
The utility model discloses to the above-mentioned problem among the prior art, for remedying the not enough of prior art, the utility model provides a can guarantee that carbon brush and wiping line electrode contact pressure are balanced, carbon brush concertina movement is steady smooth and easy, can improve the brush structure of installing in wiping line current collector of carbon brush life.
(2) Technical scheme
In order to achieve the technical purpose, the utility model provides a brush structure installed in a sliding contact line current collector, which comprises a current collector shell and a brush installed in the current collector shell, wherein more than one brush fixing groove is arranged in the current collector shell, a guide brush holder is fixed in the brush fixing groove, one side of the guide brush holder is provided with an open slot, a constant force driving spring assembly is clamped in the open slot and comprises a constant force coil spring and an L-shaped fixing bracket, the end head of the constant force coil spring and one end of the L-shaped fixing bracket are riveted together through a rivet, the constant force coil spring is placed in a cavity of the guide brush holder, the other end of the L-shaped fixing bracket is fixed in the current collector shell, the brush is also slidably sleeved in the cavity of the guide brush holder, and the constant force coil spring contacts and pushes the bottom surface of the brush, one side of the electric brush is provided with a guide sliding groove, the guide sliding groove is in sliding fit with the cylindrical end head of the rivet, and a leading-out wire in the electric brush penetrates out of an opening in the bottom of one side of the guide brush holder and then is connected with a wiring terminal arranged in the collector shell.
Preferably, the guide sliding groove is a non-through groove, and the non-through groove end of the guide sliding groove blocks the cylindrical end head part to prevent the brush from sliding out of the guide brush holder.
Preferably, an insulating pad is disposed on a bottom surface of the brush contacting the constant force coil spring.
Preferably, the width of the opening groove is smaller than that of the L-shaped fixing bracket.
Preferably, two narrow side sides of the guide brush holder are provided with transition circular arc inner angles, and the electric brush is internally provided with corresponding transition outer circular angles.
Preferably, the guide brush holder is made of copper alloy or aluminum alloy.
Preferably, two to five brush fixing grooves are provided in the collector housing.
Preferably, the L-shaped fixing bracket is provided with a fixing mounting hole.
(3) Advantageous effects
1. The guide brush holder is arranged on the collector shell, and the constant force drive spring assembly is arranged in the guide brush holder, so that the electric brush has good guide effect during telescopic motion, is not prone to being skewed and jammed, and is not prone to being abraded; compared with a compression spring adopted in the prior art, the constant-force spring driving structure can provide balanced driving force, ensures that the contact pressure of the carbon brush and the electrode of the sliding contact line cannot be changed due to the compression stroke of the electric brush, and is favorable for stable and reliable power supply of the sliding contact line in the motion process;
2. the utility model discloses constant force drive spring subassembly structural design is ingenious, and the constant force coil spring of constant force drive spring subassembly and the riveting of L type fixed bolster through the rivet are in the same place, and the card of constant force drive spring subassembly is established in the open slot of direction brush holder, and the subassembly installation is fixed convenient and fast reliable, can reliably guarantee that the constant force spring is balanced stable to the driving pressure that the brush was applyed, and the cylindrical end portion of rivet can still play direction and limiting displacement to the brush, and the flexible direction effect of brush is better;
3. transition fillets are arranged in the guide brush holder and the electric brush, so that the electric brush can be in stable transition contact with the sliding contact line guide rail during operation, large impact force is avoided, lateral stress applied by the sliding contact line guide rail can be reduced, and the electric brush is not easy to be damaged by collision;
4. the friction coefficient between the guide brush holder and the electric brush is small, so that the carbon brush is ensured to stably and smoothly stretch and move, the electric brush is not easy to wear, and the service life of the electric brush is long.
5. The electric brush structure is more reasonable, and the performance is more reliable.
Drawings
The present invention will be further explained with reference to the drawings and examples. Wherein:
fig. 1 is a schematic structural view of a current collector case according to the present invention;
fig. 2 is a schematic perspective exploded view of a brush structure part of the present invention;
fig. 3 is a schematic cross-sectional view of the brush structure (when compressed under force) of the present invention;
fig. 4 is a schematic cross-sectional view of a brush structure portion (when not compressed under force) according to the present invention;
fig. 5 is a schematic diagram of the relative sliding motion between the current collector and the trolley line guide rail according to the present invention.
The reference signs are:
1-a current collector housing; 11-brush holding grooves; 2-electric brush, 21-guide chute, 22-lead-out wire, 23-insulation pad, 24-transition external fillet; 3-guiding brush holder, 31-open slot, 32-transition arc inner angle; 4-constant force drive spring assembly, 41-constant force coil spring, 42-L-shaped fixed support, 43-rivet, 431-cylindrical end head.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Example (b):
referring to fig. 1 to 5, the brush structure installed in a trolley conductor current collector according to the present invention includes a current collector housing 1 and a brush 2 installed in the current collector housing 1, wherein the current collector housing 1 is provided with more than one brush fixing groove 11, the brush fixing groove 11 is fixed with a guide brush holder 3, one side of the guide brush holder 3 is provided with an open slot 31, the open slot 31 is clamped with a constant force driving spring assembly 4, the constant force driving spring assembly 4 includes a constant force coil spring 41 and an L-shaped fixing bracket 42, an end of the constant force coil spring 41 and one end of the L-shaped fixing bracket 42 are riveted together by a rivet 43, the constant force coil spring 41 is placed in a cavity of the guide brush holder 3, the other end of the L-shaped fixing bracket 42 is fixed in the current collector housing 1, the brush 2 is further slidably sleeved in the cavity of the guide brush holder 3, the constant force coil spring 41 contacts and pushes the bottom surface of the electric brush 2, a guide sliding groove 21 is arranged on one side of the electric brush 2, the guide sliding groove 21 is in sliding fit with a cylindrical end head 431 of the rivet 43, and a leading-out wire 22 in the electric brush 2 penetrates out of an opening in the bottom of one side of the guide brush holder 3 and then is connected with a wiring terminal arranged in the current collector shell 1. The guide sliding groove 21 is a non-through groove, and the cylindrical end head 431 is clamped by the groove end of the non-through guide sliding groove 21 to prevent the brush 2 from sliding out of the guide brush holder 3.
An insulating pad 23 is provided on the bottom surface of the brush 2 contacting the constant force coil spring 41.
The width of the opening groove 31 is smaller than that of the L-shaped fixing bracket 42. And the L-shaped fixing bracket 42 is provided with a fixing mounting hole.
Two narrow side edges of the guide brush holder 3 are provided with transition circular arc inner corners 32, and the electric brush 2 is provided with corresponding transition outer corners 24. The guide brush holder 3 is made of copper alloy or aluminum alloy.
Two to five brush fixing grooves 11 are provided in the collector case 1.
When the utility model is used, in the relative sliding fit process of the current collector and the sliding contact line guide rail (as shown in fig. 5), because the electric brush and the sliding contact line are influenced by the processing precision and the installation precision, the distance between the contact surface of the electric brush 2 and the sliding contact line guide rail is not uniform (namely the compression stroke of the electric brush 2 is constantly changed), but constant contact pressure between the electric brush 2 and the sliding contact line guide rail can be ensured under the action of the constant force coil spring 41, and stable and reliable power supply is ensured; and the electric brush 2 is guided in the guide brush holder 3 to slide in a telescopic way, so that the stable and smooth telescopic motion is ensured, and the electric brush is not easy to wear.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The electric brush structure installed in the sliding contact line current collector comprises a current collector shell (1) and an electric brush (2) installed in the current collector shell (1), and is characterized in that more than one electric brush fixing groove (11) is formed in the current collector shell (1), a guide brush holder (3) is fixed in the electric brush fixing groove (11), an open groove (31) is formed in one side of the guide brush holder (3), a constant force driving spring assembly (4) is clamped in the open groove (31), the constant force driving spring assembly (4) comprises a constant force coil spring (41) and an L-shaped fixing support (42), the end of the constant force coil spring (41) and one end of the L-shaped fixing support (42) are riveted together through a rivet (43), the constant force coil spring (41) is placed in a cavity of the guide brush holder (3), and the other end of the L-shaped fixing support (42) is fixed in the current collector shell (1), still slide the cover in direction brush holder (3) cavity and be equipped with brush (2), constant force coil spring (41) contact top pushes up the bottom surface of brush (2), one side of brush (2) is equipped with direction spout (21), direction spout (21) with cylindrical end portion (431) sliding fit of rivet (43), lead-out wire (22) in brush (2) are followed wear out the back in direction brush holder (3) one side bottom opening and are in with the setting binding post in current collector casing (1) links to each other.
2. A brush structure mounted in a trolley wire collector according to claim 1, wherein the guiding sliding groove (21) is a non-through groove, and the groove end of the non-through guiding sliding groove (21) is blocked with the cylindrical end head part (431) to prevent the brush (2) from sliding out of the guiding brush holder (3).
3. A brush structure mounted in a trolley wire collector according to claim 1, wherein a bottom surface of said brush (2) contacting said constant force coil spring (41) is provided with an insulating pad (23).
4. A brush structure mounted in a trolley wire collector according to claim 1, wherein the width of the open groove (31) is smaller than the width of the L-shaped fixing bracket (42).
5. A brush structure for mounting in a trolley wire collector according to claim 1, characterized in that the two narrow sides of the guiding brush holder (3) are provided with transition fillets (32) and the brush (2) is provided with corresponding transition bullnose (24).
6. A brush structure mounted in a trolley wire collector according to claim 1, wherein said guide brush holder (3) is processed with copper alloy or aluminum alloy.
7. A brush structure mounted in a trolley wire collector according to claim 1, wherein two to five brush fixing grooves (11) are provided in the collector housing (1).
8. A brush structure for mounting in a trolley wire collector according to claim 1, wherein said L-shaped fixing bracket (42) is provided with a fixing mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920214711.7U CN209881049U (en) | 2019-02-20 | 2019-02-20 | Electric brush structure mounted in trolley conductor current collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920214711.7U CN209881049U (en) | 2019-02-20 | 2019-02-20 | Electric brush structure mounted in trolley conductor current collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209881049U true CN209881049U (en) | 2019-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920214711.7U Active CN209881049U (en) | 2019-02-20 | 2019-02-20 | Electric brush structure mounted in trolley conductor current collector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109768451A (en) * | 2019-02-20 | 2019-05-17 | 福建隆融机电设备有限公司 | A kind of brush structure being installed in current collector for trolley conductor |
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2019
- 2019-02-20 CN CN201920214711.7U patent/CN209881049U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109768451A (en) * | 2019-02-20 | 2019-05-17 | 福建隆融机电设备有限公司 | A kind of brush structure being installed in current collector for trolley conductor |
| CN109768451B (en) * | 2019-02-20 | 2024-04-09 | 福建隆融机电设备有限公司 | Electric brush structure installed in trolley wire current collector |
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