CN201433763Y - Electromagnetic brake in coal mining machine dragging - Google Patents
Electromagnetic brake in coal mining machine dragging Download PDFInfo
- Publication number
- CN201433763Y CN201433763Y CN 200920033930 CN200920033930U CN201433763Y CN 201433763 Y CN201433763 Y CN 201433763Y CN 200920033930 CN200920033930 CN 200920033930 CN 200920033930 U CN200920033930 U CN 200920033930U CN 201433763 Y CN201433763 Y CN 201433763Y
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- electromagnetic
- brake
- electromagnetic coil
- friction plate
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- 239000003245 coal Substances 0.000 title claims abstract description 6
- 238000005065 mining Methods 0.000 title claims abstract description 6
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 abstract description 6
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract description 2
- 230000000712 assembly Effects 0.000 abstract 2
- 238000000429 assembly Methods 0.000 abstract 2
- 238000009510 drug design Methods 0.000 abstract 1
- 230000009471 action Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000001595 contractor effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
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Abstract
The utility model discloses an electromagnetic brake in coal mining machine dragging. The electromagnetic brake comprises the following components: an installed braking mechanism, a left friction plate assembly and a right friction plate assembly which are matched with the braking mechanism, a left electromagnetic coil and a right electromagnetic coil which drives the left friction plate assemblyand the right friction plate assembly to take off the brake after being energized, a spring set which pushes the friction plate assemblies for contracting brake when the electromagnetic coils are switched off, an armature, and a power supply for supplying power for the electromagnetic coil, wherein the power voltage applied to two ends of the electromagnetic coil is a pull-in voltage for pulling the armature to move. The electromagnetic brake also comprises an electromagnetic brake contracting module which converts the pull-in voltage to a sustaining voltage for sustaining the friction plate assemblies to a brake loosening state when the electromagnetic coils are energized after the armature is picked up with the electromagnetic coils. The electromagnetic brake contracting module is connected in a power supply loop between the power supply and the electromagnetic coils in series. The electromagnetic brake provided by the utility model has the advantages of simple circuit wiring, rational design, simple operation, good use effect, short braking time, abrasion monitoring function for the brake plate, and capability for effectively settling the practical problems in using a hydraulicbraking used by the prior-art coal mining machine.
Description
Technical field
The utility model relates to a kind of coal-winning machine brake, especially relates to a kind of shearer haulage electromagnetic brake.
Background technology
The existing employed brake of coal-winning machine is the hydraulic braking lock mostly, the hydraulic braking lock in actual use, mainly have following defective: 1, braking time is long, when using the hydraulic braking lock to brake, controller provides combined floodgate (braking), send the lock signal after, make electromagnetic valve action, afterwards by electromagnetic valve to the corresponding control of hydraulic circuit after, just can reach the purpose of control hydraulic contracting action.2, the feedback signal of no brake lining abrasion condition, in the actual use, along with the increase of useful life, the brake lining that band-type brake is used can be worn inevitably, and will influence braking effect when the brake lining degree of wear is serious.
The utility model content
Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art, a kind of shearer haulage electromagnetic brake is provided, its circuit connection simple, reasonable in design and use easy and simple to handle, result of use good, dispose the electromagnetic brake module, braking time is short and have brake lining wearing and tearing function for monitoring, can effectively solve existing coal-winning machine and use the practical problem that exists in the use of hydraulic braking lock.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of shearer haulage electromagnetic brake, comprise the brake structure that is installed on the traction motor for coal mining machine, match with described brake structure use to described traction electric machine brake about two friction plates assemblings, two friction plate assemblings, two electromagnetic coils about promptly declutching about the energising back drives away from brake structure one side shifting, the electromagnetic coil powering-off state promotes band-type brake is promptly carried out in groups of springs from the friction plate assembling to brake structure one side shifting down, coaxial armature between described electromagnetic coil and friction plate assembling and the power supply that described electromagnetic coil is powered, the pick-up voltage U of the voltage of described electromagnetic coil power supply that two ends add of being installed in for attracting described armature to move
0Described brake structure, friction plate assembling, groups of springs, armature and electromagnetic coil are formed the electromagnetic brake body, it is characterized in that: also comprise when electromagnetic coil energising and armature and electromagnetic coil mutually after the adhesive with the pick-up voltage U at electromagnetic coil two ends
0Be converted to and keep the voltage U of keeping that the friction plate assembling is in the state of declutching
1The electromagnetic brake module, described electromagnetic brake module is serially connected in the current supply circuit between described power supply and electromagnetic coil.
Also comprise the controller that electromagnetic brake body and electromagnetic brake module are coordinated to control; Described electromagnetic brake module by be serially connected in respectively described power supply and about between two electromagnetic coils two full bridge rectifiers in the current supply circuit form, described full bridge rectifier is made up of four diodes; Two output Y0 of described controller and Y1 be ground connection behind relay K 3 and K4 respectively, often opening in the current supply circuit that electric shock K3 is serially connected in described power supply and electromagnetic brake intermodule of relay K 3, two constant open contacts of relay K 4 are serially connected in respectively between the diode of two butt joints in two full bridge rectifiers.
Also comprise two microswitches that are arranged on the described electromagnetic coil outside, wherein a microswitch is for reacting described electromagnetic coil both end voltage by pick-up voltage U
0Be converted to and keep voltage U
1After changeover switch, the another microswitch is the wearing and tearing switch of the described friction plate of reaction assembling wearing and tearing situation, described changeover switch is that normal open switch and described wearing and tearing switch are normally closed switch; Join with the public input COM and the input X0 of controller respectively after two wearing and tearing switches in two electromagnetic coils outside are connected in series mutually about being arranged on, two changeover switches in two electromagnetic coil outsides are connected on respectively between controller input X1 and X2 and the public input COM about being arranged on.
Described two microswitches all are arranged in the yoke of described electromagnetic coil.
The utility model compared with prior art has the following advantages:
1, circuit connection is simple, reasonable in design and use easy and simple to handle.
2, braking time is short, braking in time, when electromagnetic coil is switched on, the magnetic line of force forms the closed-loop path by yoke set on the electromagnetic coil and armature, the electromagnetic force that produces overcomes the spring force of groups of springs armature is inhaled to yoke, thereby make the friction plate assembling between the joint cover of armature and brake structure one side, freely to rotate, reach the state of declutching.And after the electromagnetic coil outage, armature pressing friction sheet assembling under the effect of spring force produces moment of friction, makes the load braking of rotation.Therefore with respect to the hydraulic contracting system, after controller provides the band-type brake signal, can carry out the band-type brake action rapidly, the intermediate mechanical delay time is short, can realize braking fast when shutting down.
3, result of use is good and have a brake lining wearing and tearing function for monitoring, establish two microswitches in the set yoke on the electromagnetic coil, the left side is changeover switch (normal open switch), the right side is wearing and tearing switch (normally closed switch), changeover switch and electromagnetic brake module interoperation, be responsible for inhaling after yoke when the electromagnetic coil energising and with armature, the pick-up voltage of electromagnetic coil is converted to maintenance voltage 28V by 42V, the wearing and tearing switch is responsible for when brake lining is friction plate assembling serious wear, specifically be when the air gap delta value between friction plate assembling and brake structure increases to 1.5mm, in time report and submit to the controller wear information, need to adjust or change brake lining by the controller prompting.
In sum, the utility model circuit connection simple, reasonable in design and use easy and simple to handle, result of use good, dispose the electromagnetic brake module, not only braking time is short, and have brake lining wearing and tearing function for monitoring, can effectively solve existing coal-winning machine and use existing practical problem in the use of hydraulic braking lock.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is a theory diagram of the present utility model.
Fig. 2 is the circuit theory diagrams of the utility model electromagnetic coil and electromagnetic brake module.
Fig. 3 is the circuit theory diagrams of the utility model controller part.
Description of reference numerals:
1-; Electromagnetic brake module 2-controller; 3-left side electromagnetic coil;
The right electromagnetic coil of 4-; 5-electromagnetic brake body; The 6-changeover switch;
The 7-switch that weares and teares; 8-left side band-type brake driving mechanism; The right band-type brake driving mechanism of 9-.
The specific embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, the utility model comprises the brake structure that is installed on the traction motor for coal mining machine, match with described brake structure use to described traction electric machine brake about two friction plates assemblings, two friction plate assemblings, two electromagnetic coils about promptly declutching about the energising back drives away from brake structure one side shifting, the electromagnetic coil powering-off state promotes band-type brake is promptly carried out in groups of springs from the friction plate assembling to brake structure one side shifting down, coaxial armature between described electromagnetic coil and friction plate assembling and the power supply that described electromagnetic coil is powered, the pick-up voltage U of the voltage of described electromagnetic coil power supply that two ends add of being installed in for attracting described armature to move
0Described brake structure, friction plate assembling, groups of springs, armature and electromagnetic coil are formed electromagnetic brake body 5.In addition, the utility model also comprise when electromagnetic coil energising and armature and electromagnetic coil mutually after the adhesive with the pick-up voltage U at electromagnetic coil two ends
0Be converted to and keep the voltage U of keeping that the friction plate assembling is in the state of declutching
1 Electromagnetic brake module 1, described electromagnetic brake module 1 is serially connected in the current supply circuit between described power supply and electromagnetic coil.In the present embodiment, the supply voltage of described power supply is 42V.Two electromagnetic coils are respectively left electromagnetic coil 3 and right electromagnetic coil 4 about described.
The utility model also comprises the controller 2 that described electromagnetic coil and electromagnetic brake module 1 are coordinated to control.Described electromagnetic brake module 1 by be serially connected in respectively described power supply and about between two electromagnetic coils two full bridge rectifiers in the current supply circuit form, described full bridge rectifier is made up of four diodes, is specially by D11, D12, D13 and four diodes of D14 to form a full bridge rectifier and form another full bridge rectifier by D21, D22, D23 and four diodes of D24.Two output Y0 of described controller 2 and Y1 be ground connection behind relay K 3 and K4 respectively, often opening in the current supply circuit that electric shock K3 is serially connected in 1 of described power supply and electromagnetic brake module of relay K 3, two constant open contacts of relay K 4 are serially connected in respectively between the diode of two butt joints in two full bridge rectifiers.
In addition, the utility model also comprises two microswitches that are arranged on the described electromagnetic coil outside, and wherein a microswitch is for reacting described electromagnetic coil both end voltage by pick-up voltage U
0Be converted to and keep voltage U
1After changeover switch 6, the another microswitch be that normal open switch and described wearing and tearing switch 7 are normally closed switch for the wearing and tearing switch 7 of the described friction plate of reaction assembling wearing and tearing situation, described changeover switch 6.Simultaneously, two wearing and tearing switches 7 in two electromagnetic coil outsides about being arranged on (being that left electromagnetic brake wearing and tearing node M 2S1 is connected in series the back mutually with right electromagnetic brake wearing and tearing node M 3S1) public input COM and input X0 with controller 2 respectively join, and two changeover switches 6 in two electromagnetic coil outsides are connected on respectively between controller 2 input X1 and X2 and the public input COM about being arranged on.In the present embodiment, described two microswitches all are arranged in the yoke of described electromagnetic coil, specifically are that changeover switch 6 is arranged on described yoke left side, and wearing and tearing switch 7 is arranged on described yoke right side.Wherein, left electromagnetic coil 3 is formed left band-type brake driving mechanism 8 with two microswitches that are arranged on its outside, and right electromagnetic coil 4 is formed right band-type brake driving mechanism 9 with two microswitches that are arranged on its outside.
The course of work of the present utility model is: when needs drew, two the output Y0 and the Y1 of controller 2 exported control signal simultaneously, respectively relay K 3 and K4 are controlled, and made that the constant open contact K3 of relay K 3 and K4 and K4 are all closed; After the equal closure of constant open contact K3 and K4, electromagnetic brake module 1 is in full-bridge rectification state and two electromagnetic coils output 36V driving voltages to the left and right respectively, about after two electromagnetic coils energisings, two friction plates assemblings are opened and are declutched about drive; When about the assembling of two friction plates all open put in place after, two changeover switches 6 promptly keep node M 2S2 and M3S2 all closed, this moment, controller 2 stopped the signal output of output Y1, promptly make relay K 4 actions and its constant open contact K4 disconnect, thereby electromagnetic brake module 1 is switched to half-bridge keeps state, promptly by electromagnetic brake module 1 respectively the 28V of two electromagnetic coils output to the left and right keep the maintenance voltage of the state that declutches.
When needs were braked, controller 2 stopped the signal output of output Y0, promptly made relay K 3 actions and its constant open contact K3 disconnect, electromagnetic brake module 1 dead electricity, and two equal dead electricity of electromagnetic coil about making at this moment, thus reach the braking purpose of closing a floodgate.When arbitrary band-type brake brake lining is friction plate assembling serious wear, promptly when left electromagnetic brake wearing and tearing node M 2S1 or right electromagnetic brake wearing and tearing node M 3S1 disconnection, the wear information that controller 2 transmits according to above-mentioned two switches, restriction are opened band-type brake and are promptly declutched and provide corresponding prompt information.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of technical solutions of the utility model according to the utility model technical spirit.
Claims (4)
1. shearer haulage electromagnetic brake, comprise the brake structure that is installed on the traction motor for coal mining machine, match with described brake structure use to described traction electric machine brake about two friction plates assemblings, two friction plate assemblings, two electromagnetic coils about promptly declutching about the energising back drives away from brake structure one side shifting, the electromagnetic coil powering-off state promotes band-type brake is promptly carried out in groups of springs from the friction plate assembling to brake structure one side shifting down, coaxial armature between described electromagnetic coil and friction plate assembling and the power supply that described electromagnetic coil is powered, the pick-up voltage U of the voltage of described electromagnetic coil power supply that two ends add of being installed in for attracting described armature to move
0Described brake structure, friction plate assembling, groups of springs, armature and electromagnetic coil are formed electromagnetic brake body (5), it is characterized in that: also comprise when electromagnetic coil energising and armature and electromagnetic coil mutually after the adhesive with the pick-up voltage U at electromagnetic coil two ends
0Be converted to and keep the voltage U of keeping that the friction plate assembling is in the state of declutching
1Electromagnetic brake module (1), described electromagnetic brake module (1) is serially connected in the current supply circuit between described power supply and electromagnetic coil.
2. according to the described shearer haulage electromagnetic brake of claim 1, it is characterized in that: also comprise the controller (2) that electromagnetic brake body (5) and electromagnetic brake module (1) are coordinated to control; Described electromagnetic brake module (1) by be serially connected in respectively described power supply and about between two electromagnetic coils two full bridge rectifiers in the current supply circuit form, described full bridge rectifier is made up of four diodes; Two output Y0 of described controller (2) and Y1 be ground connection behind relay K 3 and K4 respectively, the electric shock K3 that often opens of relay K 3 is serially connected in the current supply circuit between described power supply and electromagnetic brake module (1), and two constant open contacts of relay K 4 are serially connected in respectively between the diode of two butt joints in two full bridge rectifiers.
3. according to the described shearer haulage electromagnetic brake of claim 2, it is characterized in that: also comprise two microswitches that are arranged on the described electromagnetic coil outside, wherein a microswitch is for reacting described electromagnetic coil both end voltage by pick-up voltage U
0Be converted to and keep voltage U
1After changeover switch (6), the another microswitch is the wearing and tearing switch (7) of the described friction plate of reaction assembling wearing and tearing situation, described changeover switch (6) is that normal open switch and described wearing and tearing switch (7) they are normally closed switch; Join with the public input COM and the input X0 of controller (2) respectively after two wearing and tearing switches (7) in two electromagnetic coils outside be connected in seriess mutually about being arranged on, two changeover switches (6) about being arranged on outside two electromagnetic coils are connected on respectively between controller (2) input X1 and X2 and the public input COM.
4. according to claim 1 or 2 described shearer haulage electromagnetic brakes, it is characterized in that: described two microswitches all are arranged in the yoke of described electromagnetic coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920033930 CN201433763Y (en) | 2009-07-17 | 2009-07-17 | Electromagnetic brake in coal mining machine dragging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920033930 CN201433763Y (en) | 2009-07-17 | 2009-07-17 | Electromagnetic brake in coal mining machine dragging |
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| Publication Number | Publication Date |
|---|---|
| CN201433763Y true CN201433763Y (en) | 2010-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920033930 Expired - Lifetime CN201433763Y (en) | 2009-07-17 | 2009-07-17 | Electromagnetic brake in coal mining machine dragging |
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| Country | Link |
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| CN (1) | CN201433763Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021175059A1 (en) * | 2020-03-06 | 2021-09-10 | 奥创动力传动(深圳)有限公司 | Electromagnetic brake control apparatus |
-
2009
- 2009-07-17 CN CN 200920033930 patent/CN201433763Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021175059A1 (en) * | 2020-03-06 | 2021-09-10 | 奥创动力传动(深圳)有限公司 | Electromagnetic brake control apparatus |
| GB2607798A (en) * | 2020-03-06 | 2022-12-14 | Altra Ind Motion Shenzhen Co Ltd | Electromagnetic brake control apparatus |
| GB2607798B (en) * | 2020-03-06 | 2024-02-14 | Altra Ind Motion Shenzhen Co Ltd | Electromagnetic brake control apparatus |
| US12222013B2 (en) | 2020-03-06 | 2025-02-11 | Altra Industrial Motion (shenzhen) Co., Ltd. | Electromagnetic brake control apparatus |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100331 |
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| CX01 | Expiry of patent term |