CN109768451B - Electric brush structure installed in trolley wire current collector - Google Patents
Electric brush structure installed in trolley wire current collector Download PDFInfo
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- CN109768451B CN109768451B CN201910125047.3A CN201910125047A CN109768451B CN 109768451 B CN109768451 B CN 109768451B CN 201910125047 A CN201910125047 A CN 201910125047A CN 109768451 B CN109768451 B CN 109768451B
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- brush
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- constant force
- coil spring
- brush holder
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- 230000007704 transition Effects 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 7
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 6
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 8
- 238000007906 compression Methods 0.000 description 8
- 238000010276 construction Methods 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000009435 building construction Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
The invention discloses a brush structure installed in a trolley wire collector, which relates to the technical field of trolley wires and comprises a collector shell and a brush, wherein a brush fixing groove is formed in the 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 groove, a constant force driving spring component is clamped in the open groove and comprises a constant force coil spring and an L-shaped fixing support which are riveted together through rivets, the constant force coil spring is placed in a cavity of the guide brush holder, the guide brush holder cavity is also sheathed with the brush in a sliding manner, the constant force coil spring contacts the bottom surface of a pushing brush, one side of the brush is provided with a guide chute, and the guide chute is in sliding fit with a cylindrical end head of the rivet. The invention can lead the electric brush to have good guiding when in telescopic movement, is not easy to be skewed and blocked, 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 trolley wire in the movement process.
Description
Technical Field
The invention relates to the technical field of trolley wires, in particular to an electric brush structure arranged in a trolley wire current collector.
Background
In the building construction process, the construction elevator is required to convey materials, the construction elevator is required to be connected with a power supply circuit to be driven, a special power supply circuit is not arranged in the building construction process to supply power to the construction elevator, a trolley line is generally adopted to supply power to the construction elevator, the trolley line is a plurality of conductive tracks which are laid in parallel along the running track of the construction elevator, a current collector which can be connected with the conductive tracks in a sliding manner and is powered is arranged on the construction elevator, and thus the construction elevator which moves up and down can be supplied with power uninterruptedly through the sliding fit of the current collector and the trolley line.
The current collector is internally provided with an electric brush which is in sliding contact with the sliding contact wire, and the electric brush is made of graphite, so the electric brush is also called a carbon brush. The current collector is characterized in that the electric brushes are generally of a block-shaped structure with a rectangular structure, one ends of the electric brushes are arranged in a collector shell, the other ends of the electric brushes are exposed out of the collector shell, compression springs are arranged between the collector shell and the electric brushes, and the electric brushes are pushed towards the sliding contact lines outside the collector shell by the compression springs, so that certain contact pressure is kept between contact surfaces of the electric brushes and the sliding contact lines, and connection power supply between the electric brushes and the sliding contact lines is realized. The structure of pushing the electric brush by the compression spring changes the contact pressure along with the change of the telescopic stroke of the compression spring, and in the lifting movement process of the construction lifting elevator, the distance between the electric brush and the contact surface of the sliding contact wire is difficult to ensure uniform and consistent because the electric brush and the sliding contact wire are influenced by the machining precision and the installation precision, so the telescopic stroke of the compression spring for driving the electric brush also changes continuously, the contact pressure between the electric brush and the sliding contact wire also fluctuates, the change of the contact pressure is easy to aggravate the abrasion of the electric brush, and the stable and reliable power supply is not facilitated.
In addition, because the electric brush continuously stretches out and draws back in the collector and the collector still needs whole slip, the electric brush still can constantly bear the side direction atress that the wiping line guide rail applyed in the flexible motion in-process, consequently need have reliable direction just can guarantee that the electric brush can stable stretch out and draw back, and just set up a direction holding tank installation electric brush in the current collector generally, its guide effect is relatively poor, the electric brush is inclined to one side easily, also aggravate the electric brush wearing and tearing easily, the electric brush dust after wearing and tearing can further accumulate between electric collector and electric brush, further influence the use of electric brush.
Further improvements are needed to address the above problems with the prior art.
Disclosure of Invention
(1) Technical problem to be solved
The invention aims at the problems in the prior art, and in order to make up the defects in the prior art, the invention provides the brush structure which is arranged in the trolley wire current collector and can ensure that the contact pressure of a carbon brush and a trolley wire electrode is balanced, the carbon brush stretches and stretches smoothly, and the service life of the carbon brush can be prolonged.
(2) Technical proposal
In order to achieve the technical purpose, the invention provides a brush structure installed in a trolley wire collector, which comprises a collector shell and a brush installed in the collector shell, wherein more than one brush fixing groove is formed in the collector shell, a guide brush holder is fixed in the brush fixing groove, one side of the guide brush holder is provided with an opening groove, a constant force driving spring component is clamped in the opening groove, the constant force driving spring component comprises a constant force coil spring and an L-shaped fixing support, one end of the constant force coil spring and one end of the L-shaped fixing support 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 support is fixed in the collector shell, the brush is further sleeved in the guide brush holder cavity in a sliding mode, the constant force coil spring contacts the bottom surface of the brush, one side of the brush is provided with a guide chute, the guide chute is in sliding fit with a cylindrical end head of the rivet, and one end of the lead coil spring is arranged in the bottom opening of one side of the guide brush holder and then is connected with a wiring terminal in the collector shell.
Preferably, the guiding chute is an unperforated chute, and the end of the unperforated guiding chute is blocked by the circular end head part to prevent the brush from sliding out of the guiding brush holder.
Preferably, the bottom surface of the brush, which contacts the constant force coil spring, is provided with an insulating pad.
Preferably, the width of the open slot is smaller than the width of the L-shaped fixing bracket.
Preferably, two narrow side sides of the guide brush holder are provided with transition arc inner angles, and corresponding transition bullnose angles are arranged in the electric brushes.
Preferably, the guide brush holder is processed by copper alloy or aluminum alloy.
Preferably, two to five brush fixing grooves are provided in the collector case.
Preferably, the L-shaped fixing support is provided with a fixing mounting hole.
(3) Advantageous effects
1. The current collector shell is provided with the guide brush holder, and the constant force driving spring assembly is arranged in the guide brush holder, so that the electric brush has good guide when in telescopic movement, is not easy to skew and jam, and is not easy to wear; compared with a compression spring adopted in the prior art, the constant force spring driving structure can provide balanced driving force, so that the contact pressure of the carbon brush and the trolley wire electrode can not be changed due to the compression stroke of the electric brush, and the stable and reliable power supply of the trolley wire in the movement process is facilitated;
2. the constant force driving spring component is ingenious in structural design, the constant force coil spring of the constant force driving spring component and the L-shaped fixing support are riveted together through the rivet, the constant force driving spring component is clamped in the open slot of the guide brush holder, the component is convenient and reliable to install and fix, the driving pressure exerted by the constant force spring on the electric brush can be reliably ensured to be balanced and stable, the cylindrical end part of the rivet can also play a role in guiding and limiting the electric brush, and the telescopic guiding effect of the electric brush is better;
3. the guide brush holder and the electric brush are provided with transition fillets, so that the electric brush and the trolley wire guide rail can be in stable transition contact during operation, high impact force is avoided, lateral stress applied by the trolley wire guide rail can be reduced, and the electric brush is not easy to collide and damage;
4. the friction coefficient between the guide brush holder and the electric brush is small, the flexible movement of the carbon brush is ensured to be stable and smooth, the electric brush is not easy to wear, and the service life of the electric brush is long.
5. The brush structure is more reasonable and the performance is more reliable.
Drawings
The invention is further described below with reference to the drawings and examples. Wherein:
FIG. 1 is a schematic view of the structure of a current collector housing of the present invention;
FIG. 2 is an exploded perspective view of a brush structure portion according to the present disclosure;
FIG. 3 is a schematic cross-sectional view of a brush structure portion (when compressed) according to the present disclosure;
FIG. 4 is a schematic cross-sectional view of a brush structure portion (when not compressed by force) of the present invention;
fig. 5 is a schematic view showing the relative sliding movement of the current collector and the trolley line rail according to the present invention.
The reference numerals are:
1-a current collector housing; 11-a brush fixing groove; 2-brushes, 21-guiding sliding grooves, 22-outgoing lines, 23-insulating pads and 24-transitional bullnose angles; 3-guiding brush holders, 31-opening grooves and 32-transition arc inner angles; 4-constant force drive spring assembly, 41-constant force coil spring, 42-L-shaped fixed bracket, 43-rivet, 431-cylindrical end head.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Examples:
referring to fig. 1-5, the brush structure installed in a trolley wire collector of the present invention includes a collector housing 1 and a brush 2 installed in the collector housing 1, wherein more than one brush fixing groove 11 is provided in the collector housing 1, a guiding brush holder 3 is fixed in the brush fixing groove 11, an opening groove 31 is provided at one side of the guiding brush holder 3, a constant force driving spring assembly 4 is clamped in the opening groove 31, the constant force driving spring assembly 4 includes a constant force coil spring 41 and an L-shaped fixing bracket 42, the 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 guiding brush holder 3, the other end of the L-shaped fixing bracket 42 is fixed in the collector housing 1, the guiding brush holder 3 is further sleeved with the brush 2 in a sliding manner, one side of the guiding brush holder 2 contacts with a bottom surface of the guiding brush holder 21, the end of the guiding coil spring 41 is matched with the guiding coil spring 43, and the end of the guiding coil spring 2 is connected with the end of the guiding coil spring 2 in the connecting terminal 2, which is arranged at one side of the connecting terminal 22 of the connecting wire 1. The guide chute 21 is an unperforated chute, and the unperforated chute end of the guide chute 21 engages with the circular end portion 431 to prevent the brush 2 from slipping out of the guide brush holder 3.
The bottom surface of the brush 2, which contacts the constant force coil spring 41, is provided with an insulating pad 23.
The width of the open slot 31 is smaller than the width of the L-shaped fixing bracket 42. The L-shaped fixing support 42 is provided with a fixing mounting hole.
The two narrow sides of the guiding brush holder 3 are provided with transition arc inner angles 32, and the electric brush 2 is provided with corresponding transition bullnose 24. The guide brush holder 3 is formed by processing copper alloy or aluminum alloy.
Two to five brush fixing grooves 11 are provided in the collector case 1.
When the electric brush is used, in the process of relative sliding fit of the current collector and the trolley line guide rail (as shown in fig. 5), as the electric brush and the trolley line are affected by the processing precision and the installation precision, the distance between the contact surface of the electric brush 2 and the trolley line guide rail is not uniform (namely the compression stroke of the electric brush 2 is continuously changed), but the constant contact pressure between the electric brush 2 and the trolley 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 brush 2 is guided to stretch and slide in the guide brush holder 3, so that stable and smooth stretching movement is ensured, and the brush is not easy to wear.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (6)
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), one side of the guide brush holder (3) is provided with an opening groove (31), a constant force driving spring assembly (4) is clamped in the opening groove (31), the constant force driving spring assembly (4) comprises a constant force coil spring (41) and an L-shaped fixing bracket (42), the end of the constant force coil spring (41) and one end of the L-shaped fixing bracket (42) are riveted together through rivets (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 shell (1), the cavity of the guide brush holder (3) is also sleeved with the constant force coil spring (41) in a sliding mode, the end of the constant force coil spring (41) is provided with a cylindrical sliding chute (21) in contact with the end of the electric brush (21), the outgoing line (22) in the electric brush (2) penetrates out of the opening at the bottom of one side of the guide brush holder (3) and then is connected with the wiring terminal arranged in the collector shell (1); the guide sliding groove (21) is an incomplete groove, and the groove end of the incomplete guide sliding groove (21) is blocked on the cylindrical end head (431) to prevent the electric brush (2) from sliding out of the guide brush holder (3); the bottom surface of the brush (2) contacting with the constant force coil spring (41) is provided with an insulating pad (23).
2. A brush arrangement for installation in a trolley line collector according to claim 1, wherein the width of the open slot (31) is smaller than the width of the L-shaped fixing bracket (42).
3. A brush arrangement for installation in a trolley line collector according to claim 1, characterized in that the two narrow sides of the guide brush holder (3) are provided with transition rounded inner corners (32), and that the brush (2) is provided with corresponding transition rounded corners (24).
4. A brush arrangement for installation in a trolley wire collector according to claim 1, characterized in that the guide brush holder (3) is machined from copper alloy or aluminum alloy.
5. A brush arrangement for installation in a trolley line collector according to claim 1, characterized in that two to five brush-holding recesses (11) are provided in the collector housing (1).
6. The brush structure mounted in a trolley wire collector as claimed in claim 1, wherein the L-shaped fixing bracket (42) is provided with a fixing mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910125047.3A CN109768451B (en) | 2019-02-20 | 2019-02-20 | Electric brush structure installed in trolley wire current collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910125047.3A CN109768451B (en) | 2019-02-20 | 2019-02-20 | Electric brush structure installed in trolley wire current collector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109768451A CN109768451A (en) | 2019-05-17 |
| CN109768451B true CN109768451B (en) | 2024-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910125047.3A Active CN109768451B (en) | 2019-02-20 | 2019-02-20 | Electric brush structure installed in trolley wire current collector |
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| Country | Link |
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| CN (1) | CN109768451B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111129897A (en) * | 2019-12-19 | 2020-05-08 | 武汉航空仪表有限责任公司 | Structure and method for regulating pressure of collector ring electric brush |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201178359Y (en) * | 2008-02-03 | 2009-01-07 | 大连宜顺机电有限公司 | Hanging ring brush carrier electricity collecting equipment of wind power generator |
| CN201839154U (en) * | 2010-09-24 | 2011-05-18 | 比亚迪股份有限公司 | Electric brush component and electric motor |
| CN202268765U (en) * | 2011-10-28 | 2012-06-06 | 宁波中大力德传动设备有限公司 | Motor brush box unit |
| CN102485631A (en) * | 2010-12-03 | 2012-06-06 | 中铁五局（集团）有限公司 | Door type crane movement power supply device |
| CN105762602A (en) * | 2016-04-15 | 2016-07-13 | 西安天鹰防务科技有限公司 | Novel sliding contact line current collection carbon brush adjustable pressing mechanism |
| CN207338876U (en) * | 2017-09-21 | 2018-05-08 | 浙江露通机电有限公司 | A kind of carbon brush component with arc spring groove |
| CN209881049U (en) * | 2019-02-20 | 2019-12-31 | 福建隆融机电设备有限公司 | Electric brush structure mounted in trolley conductor current collector |
-
2019
- 2019-02-20 CN CN201910125047.3A patent/CN109768451B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201178359Y (en) * | 2008-02-03 | 2009-01-07 | 大连宜顺机电有限公司 | Hanging ring brush carrier electricity collecting equipment of wind power generator |
| CN201839154U (en) * | 2010-09-24 | 2011-05-18 | 比亚迪股份有限公司 | Electric brush component and electric motor |
| CN102485631A (en) * | 2010-12-03 | 2012-06-06 | 中铁五局（集团）有限公司 | Door type crane movement power supply device |
| CN202268765U (en) * | 2011-10-28 | 2012-06-06 | 宁波中大力德传动设备有限公司 | Motor brush box unit |
| CN105762602A (en) * | 2016-04-15 | 2016-07-13 | 西安天鹰防务科技有限公司 | Novel sliding contact line current collection carbon brush adjustable pressing mechanism |
| CN207338876U (en) * | 2017-09-21 | 2018-05-08 | 浙江露通机电有限公司 | A kind of carbon brush component with arc spring groove |
| CN209881049U (en) * | 2019-02-20 | 2019-12-31 | 福建隆融机电设备有限公司 | Electric brush structure mounted in trolley conductor current collector |
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| CN109768451A (en) | 2019-05-17 |
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