CN208295010U - A kind of electromagnetic brake with wear detector - Google Patents
A kind of electromagnetic brake with wear detector Download PDFInfo
- Publication number
- CN208295010U CN208295010U CN201820937505.4U CN201820937505U CN208295010U CN 208295010 U CN208295010 U CN 208295010U CN 201820937505 U CN201820937505 U CN 201820937505U CN 208295010 U CN208295010 U CN 208295010U
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- armature
- brake
- wear detector
- shell
- transmission shaft
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Abstract
The utility model discloses a kind of electromagnetic brakes with wear detector, including shell and through the transmission shaft of entire shell, the housing center is equipped with for the perforative through-hole of transmission shaft, it is equipped with the first cavity being connected to through-hole inside the shell, the brake disc being socketed on transmission shaft is equipped in first cavity, further include the armature that brake disc side is set and can be moved back and forth along drive shaft axis direction, brake block is equipped on brake disc；Inner wall end surface of first cavity close to armature side is recessed inwardly to form the deep gouge of ring dress, is provided with excitation winding in the deep gouge；At least provided with a wear detector in armature.The utility model structure is simple, and the abrasion condition of brake block can be effectively monitored by the contact wear detector being equipped with.
Description
Technical field
The utility model belongs to mechanical braking apparatus field, and in particular to a kind of electromagnetic braking with wear detector
Device.
Background technique
Magnetic brake is a kind of ideal automated execution element in modern industry, and transmitting is mainly played in machine driven system
The effects of power and control movement.It is easy to operate with compact-sized, respond it is sensitive, using reliable, it is easy to accomplish remote control
The advantages that processed.It is mainly mating with serial motors.It is widely used in metallurgy, building, chemical industry, food, lathe, stage, elevator, wheel
In the machinery such as ship, packaging, and the occasions such as (anti-danger) braking when power is off.
Existing electromagnetic braking equipment includes various structures, wherein being to improve to adopt on existing hydraulic braking system
Fluid pressure line piston structure is substituted with electromagnetic coil structure to clamp brake disc to reach the brake of friction catch effect, this
Kind brake is simple because of theory structure and does not use completely new mode of braking to lower cost.But it is existing to rub
Erasing electromagnetic brake still needs to regularly replace friction plate, and periodic replacement may cause friction plate and have worn out totally and occur
The case where wearing brake disc occurs, and most of friction brakes are not provided with active friction and detect and set in the prior art
It is standby, and it is equipped with often being detected using infrared sensor for active detection equipment.But the brake block of rotation is contacted with armature
When often dish out outward some dusts, and be attached on outer casing inner wall, so that the detection accuracy of infrared sensor is influenced, when long
Between can also generate large error after use.
Utility model content
It is above-mentioned can not effectively detect brake block abrasion condition in the prior art aiming at the problem that, the utility model provides one kind
The thickness of brake block can effectively be detected using contact monitoring device and can be triggered after brake block is worn to a certain extent
Alarm to prompting changing electromagnetic brake.
The technology employed by the present utility model is a kind of electromagnetic brake with wear detector, including it is outer
Shell and transmission shaft through entire shell, the housing center are equipped with for the perforative through-hole of transmission shaft, are equipped with inside the shell and logical
First cavity of hole connection, it further includes being arranged in brake disc that first cavity is interior, which to be equipped with the brake disc being socketed on transmission shaft,
Side and the armature that can be moved back and forth along drive shaft axis direction, are equipped with brake block on brake disc；First cavity is close to armature
The inner wall end surface of side is recessed inwardly to form the deep gouge of ring dress, is provided with excitation winding in the deep gouge, passes through excitation winding
There is provided thrust to armature makes armature contact generation frictional force prevention transmission shaft rotation with brake disc；At least provided with one in armature
Wear detector, described wear detector one end are pierced by armature, and when armature moves upwards, the wear detector is pierced by one end
Contact and detect armature with brake disc and when brake disc contacts between spacing.
Wherein, the present apparatus is mainly a kind of frictional electromagnetic braking equipment of closing, and whole equipment is arranged in servo motor
Output end side is simultaneously socketed with motor transmission shaft.Internal excitation winding is used to generate magnetic field and pushes armature motion, passes through promotion
Brake disc is against the upper inside walls surface of the first cavity by armature, to achieve the effect that clamping friction is braked.Wherein, the mill
It damages detector to be arranged on armature and as armature moves back and forth, because of armature and without rotation, and the company of wear detector
Wiring is attached on outer casing inner wall and is pierced by from inner wall.Armature keep initial position when, wear detector not with brake
The contact of vehicle piece, when armature starts to move upwards, the wear detector that can be by the way that more appropriate position is arranged can be contacted first
To brake block, to be convenient for subsequent setting there are certain surplus.Because wear index is the thickness of brake block, pass through contact
The structure of formula designs, and when thickness is reduced to certain value thickness, wear detector can be moved inwardly compared with the initial position of beginning, from
And trigger alarm.
It is worth noting that the excitation winding used in the utility model and armature etc. are existing frictional electromagnetic system
The essential features and conventional prior of dynamic device, and the utility model is not former to existing braking principle and control
Reason improves, simply by the setting position that suitable internal structure and equipment is arranged, consequently facilitating detection abrasion.Therefore it is made
Dynamic principle and control principle are technological means known in those skilled in the art, and details are not described herein.
Further, the armature is equipped at least one through slot, and the wear detector includes being arranged in through slot
Shaft and the cross bar that is socketed and can rotate around the axis with shaft are equipped with the contact towards brake disc side in cross bar one end end
Device is additionally provided with touch sensor on through slot inner wall, described in after the pad wear that brakes is thinning when contactor and brake block contact
Cross bar contacts triggering alarm with touch sensor.Here wear detector is defined, wherein the through slot can not only
Wear detector is accommodated, but also can reduce armature quality, to reduce the kerb weight of whole equipment.But with friction plate
The through slot opening edge of contact avoids influencing friction catch effect along inclined-plane excess processes are carried out.Cross bar, shaft and the contact
Device is mechanical structure, and touch sensor is INVENTIONElectronic sensor devices, can be after touching the certain extruding force of cross bar to outer
Signal is issued, the thickness after indicating its abrasion is close to early warning value, and the specific early warning value can be according to actual use situation and specific
Equipment size be adjusted.
Further, the contactor include be fixed on crossbar end wheel seat and the idler wheel being hinged on wheel seat, it is described
Idler wheel rotating direction is identical as the contact direction of motion of brake block position.Sliding friction can be changed to roll and rub by the idler wheel
It wipes, to reduce wear rate.
Further, the first passage being connected to outside is equipped in the shell, the connecting line of the touch sensor is worn
It crosses first passage and is connect with external warning device.
Further, at least one fixation hole and at least one attachment base are set on the armature, are inserted into from shell exterior
At least one axis fixed pin parallel with drive shaft axis is simultaneously fixed across fixation hole, and the armature is socketed in fixed pin
It can move back and forth above and along fixed pin axis direction；It is additionally provided at least one spring in the shell, the spring one end and outer
The shell connection other end connect with attachment base and provides to armature always towards the screen resilience of excitation winding side.
Further, the brake disc two sides are equipped with brake block.
Further, the armature is being equipped with concave convex texture close to brake block side.
Further, the card slot parallel with through-bore axis is equipped in the through-hole, the transmission shaft is equipped with and card slot card
Connect fixed raised line.
The utility model has the following beneficial effects:
The utility model structure is simple, and the mill of brake block can be effectively monitored by the contact wear detector being equipped with
Situation is damaged, it is not only time-consuming and laborious compared to existing equipment by way of periodically checking maintenance, while cannot be to equipment attrition feelings
Condition makes accurate evaluation；Moreover, can be avoided the clast generated by brake pad wear compared to the detection mode of infrared sensor
The problem of influencing detection accuracy, occurs, and frictional force can be effectively reduced again by roller structure, to improve detection accuracy.
Detailed description of the invention
Fig. 1 is the schematic diagram of the section structure with through slot side of the utility model；
Fig. 2 is the schematic diagram of the section structure with fixed pin side of the utility model；
Fig. 3 is the utility model armature overlooking structure diagram；
Fig. 4 is the structural schematic diagram of the utility model cover top portion.
It is worth noting that because fixed pin, spring and through slot are to shift to install, therefore pass through Fig. 1 and Fig. 2 in different angle
Sectional view be explained.
In figure: 1- shell, 2- transmission shaft, 3- through-hole, the first cavity of 4-, 5- brake disc, 6- armature, 7- deep gouge, 8- excitation
Winding, 9- wear detector, 901- shaft, 902- cross bar, 903- touch sensor, 10- brake block, 11- through slot, 12- first
Channel, 13- fixation hole, 14- attachment base, 15- fixed pin, 16- spring, 17- card slot.
Specific embodiment
With reference to the accompanying drawing and specific embodiment is further elaborated the utility model.
Embodiment 1:
As depicted in figs. 1 and 2, the present embodiment is mainly a kind of frictional electromagnetic braking equipment of closing, and whole equipment is to set
It sets in servo motor output end side and is socketed with motor transmission shaft 2.A kind of electromagnetic brake with wear detector, packet
Shell 1 and the transmission shaft 2 through entire shell 1 are included, 1 center of shell is equipped with for the perforative through-hole 3 of transmission shaft 2, in shell 1
Interior equipped with the first cavity 4 being connected to through-hole 3, first cavity 4 is interior to be equipped with the brake disc 5 being socketed on transmission shaft 2, also wraps
The armature 6 that 5 side of brake disc is set and can be moved back and forth along 2 axis direction of transmission shaft is included, brake block is equipped on brake disc 5
10；Inner wall end surface of first cavity 4 close to 6 side of armature is recessed inwardly to form the deep gouge 7 of ring dress, is arranged in the deep gouge 7
There is excitation winding 8, providing thrust to armature 6 by excitation winding 8 makes armature 6 contact generation frictional force prevention biography with brake disc 5
Moving axis 2 rotates；At least provided with a wear detector 9 in armature 6, described 9 one end of wear detector is pierced by armature 6, works as rank
Iron 6 when moving upwards the wear detector 9 be pierced by one end contacted with brake disc 5 and detect armature 6 and when brake disc 5 contacts it
Between spacing.Internal excitation winding 8 is used to generate magnetic field and armature 6 is pushed to move, by pushing armature 6 to be against brake disc 5
The upper inside walls surface of first cavity 4, to achieve the effect that clamping friction is braked.Wherein, the setting of wear detector 9 exists
On armature 6 and as armature 6 moves back and forth, because of armature 6 and without rotation, and the connecting line of wear detector 9 can be connected
It is pierced by 1 inner wall of shell and from inner wall.When armature 6 keeps initial position, wear detector 9 is not connect with brake block 10
Touching, when armature 6 starts to move upwards, the wear detector 9 that can be by the way that more appropriate position is arranged can first touch brake
Vehicle piece 10, to be convenient for subsequent setting there are certain surplus.Because wear index is the thickness of brake block 10, pass through contact
The structure of formula designs, and when thickness is reduced to certain value thickness, wear detector 9 can be moved inwardly compared with the initial position of beginning,
To trigger alarm.
Embodiment 2:
As shown in Figure 3 and Figure 4, the present embodiment is that restriction is optimized on the basis of above-described embodiment 1, the armature 6
Be equipped at least one through slot 11, the wear detector 9 include the shaft 901 that is arranged in through slot 11 and with 901 sets of shaft
Connect and can around the shaft 901 rotation cross bar 902,902 one end end of cross bar be equipped with towards 5 side of brake disc contactor,
Be additionally provided with touch sensor 903 on 11 inner wall of through slot, when brake block 10 wear it is thinning after when contactor and brake block 10 contact
The cross bar 902 contacts triggering alarm with touch sensor 903.
Through slot 11 can not only accommodate wear detector 9, but also can reduce 6 mass of armature, entirely set to reduce
Standby kerb weight.But in 11 opening edge of through slot contacted with friction plate along inclined-plane excess processes are carried out, avoid influencing friction system
Dynamic effect.Cross bar 902, shaft 901 and the contactor is mechanical structure, and touch sensor 903 sets for electronic sensor
It is standby, signal can be sent out after touching the certain extruding force of cross bar 902, indicate the thickness after it wears close to early warning
Value, and the specific early warning value can be adjusted according to actual use situation and specific equipment size.
Embodiment 3:
The present embodiment is that restriction is optimized on the basis of above-described embodiment 2, and the contactor includes being fixed on cross bar
The wheel seat of 902 ends and the idler wheel being hinged on wheel seat, the movement side of the idler wheel rotating direction and contact 10 position of brake block
To identical.Sliding friction can be changed to rolling friction by the idler wheel, to reduce wear rate.Be equipped in the shell 1 with
The first passage 12 of outside connection, the connecting line of the touch sensor 903 pass through first passage 12 and fill with external alarm
Set connection.
Embodiment 4:
The present embodiment is that restriction is optimized on the basis of above-described embodiment 3, and it is solid that at least one is arranged on the armature 6
Determine hole 13 and at least one attachment base 14, at least one axis fixed pin parallel with 2 axis of transmission shaft is inserted into outside shell 1
15 and pass through fixation hole 13 be fixed, the armature 6 is socketed on fixed pin 15 and can be reciprocal along 15 axis direction of fixed pin
Movement；At least one spring 16 is additionally provided in the shell 1, described 16 one end of spring connect the other end and attachment base with shell 1
14 connect and provide to armature 6 always towards the screen resilience of 8 side of excitation winding.5 two sides of brake disc are equipped with brake block
10.The armature 6 is being equipped with concave convex texture close to 10 side of brake block.The card parallel with 3 axis of through-hole is equipped in the through-hole 3
Slot 17, the transmission shaft 2 are equipped with the raised line connected and fixed with card slot 17.
Wherein, in many experiments, brake block 10 works as brake after test repeatedly using the resin material with a thickness of 3-5mm
When 10 thickness of piece is reduced to 1mm or less, cross bar 902 can be contacted with touch sensor 903, error between ± 0.2mm, thus
With the monitoring effect added.
The utility model is not limited to above-mentioned optional embodiment, anyone can obtain under the enlightenment of the utility model
Other various forms of products, however, making any variation in its shape or structure, all the utility model rights that falls into are wanted
The technical solution in confining spectrum is sought, is all fallen within the protection scope of the utility model.
Claims (8)
1. a kind of electromagnetic brake with wear detector, including shell (1) and through the transmission shaft of entire shell (1)
(2), it is characterised in that: shell (1) center is equipped with for transmission shaft (2) perforative through-hole (3), be equipped in shell (1) with
The first cavity (4) of through-hole (3) connection, first cavity (4) is interior to be equipped with the brake disc (5) being socketed on transmission shaft (2), also
Including be arranged brake disc (5) side and can along transmission shaft (2) axis direction move back and forth armature (6), on brake disc (5)
Equipped with brake block (10)；Inner wall end surface of first cavity (4) close to armature (6) side is recessed inwardly to form the deep gouge (7) of ring dress,
Excitation winding (8) are provided in the deep gouge (7), by excitation winding (8) to armature (6) provide thrust make armature (6) with
Brake disc (5) contact generates frictional force and transmission shaft (2) is prevented to rotate；At least provided with a wear detector in armature (6)
(9), described wear detector (9) one end is pierced by armature (6), and when armature (6) moves upwards, the wear detector (9) is pierced by
One end contacts with brake disc (5) and detects the spacing between when armature (6) and brake disc (5) contact.
2. a kind of electromagnetic brake with wear detector according to claim 1, it is characterised in that: the armature
(6) be equipped at least one through slot (11), the wear detector (9) include be arranged shaft (901) in through slot (11) and
With shaft (901) socket and can around the shaft (901) rotation cross bar (902), cross bar (902) one end end be equipped with towards brake
The contactor of disk (5) side is additionally provided with touch sensor (903) on through slot (11) inner wall, and when brake block (10), abrasion is thinning
When contactor and brake block (10) contact, the cross bar (902) contacts triggering alarm with touch sensor (903) afterwards.
3. a kind of electromagnetic brake with wear detector according to claim 2, it is characterised in that: the contact
Device includes the idler wheel (905) for being fixed on the wheel seat (904) of cross bar (902) end and being hinged on wheel seat (904), the idler wheel
(905) rotating direction is identical as the contact direction of motion of brake block (10) position.
4. a kind of electromagnetic brake with wear detector according to claim 2 or 3, it is characterised in that: described
The first passage (12) being connected to outside is equipped in shell (1), the connecting line of the touch sensor (903) passes through first passage
(12) and with external warning device it connect.
5. a kind of electromagnetic brake with wear detector according to claim 1-3, it is characterised in that:
At least one fixation hole (13) and at least one attachment base (14) are set on the armature (6), at least from the external insertion of shell (1)
Piece axis fixed pin (15) parallel with transmission shaft (2) axis is simultaneously fixed across fixation hole (13), armature (6) set
It connects on fixed pin (15) and can be moved back and forth along fixed pin (15) axis direction；At least one is additionally provided in the shell (1)
Spring (16), described spring (16) one end connect the other end with shell (1) and connect with attachment base (14) and provide the beginning to armature (6)
Screen resilience of all morning to excitation winding (8) side.
6. a kind of electromagnetic brake with wear detector according to claim 1-3, it is characterised in that:
Brake disc (5) two sides are equipped with brake block (10).
7. a kind of electromagnetic brake with wear detector according to claim 1-3, it is characterised in that:
The armature (6) is being equipped with concave convex texture close to brake block (10) side.
8. a kind of electromagnetic brake with wear detector according to claim 1-3, it is characterised in that:
The card slot (17) parallel with through-hole (3) axis is equipped in the through-hole (3), the transmission shaft (2) is equipped with blocks with card slot (17)
Connect fixed raised line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820937505.4U CN208295010U (en) | 2018-06-15 | 2018-06-15 | A kind of electromagnetic brake with wear detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820937505.4U CN208295010U (en) | 2018-06-15 | 2018-06-15 | A kind of electromagnetic brake with wear detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208295010U true CN208295010U (en) | 2018-12-28 |
Family
ID=64702189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820937505.4U Active CN208295010U (en) | 2018-06-15 | 2018-06-15 | A kind of electromagnetic brake with wear detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208295010U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410440A (en) * | 2019-07-31 | 2019-11-05 | 蒋伟达 | Automotive brake pads wear detector |
| CN112594300A (en) * | 2020-12-21 | 2021-04-02 | 珠海格力电器股份有限公司 | Brake mechanism and motor with same |
-
2018
- 2018-06-15 CN CN201820937505.4U patent/CN208295010U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410440A (en) * | 2019-07-31 | 2019-11-05 | 蒋伟达 | Automotive brake pads wear detector |
| CN110410440B (en) * | 2019-07-31 | 2020-12-15 | 青岛方冠摩擦材料有限公司 | Automobile brake pad abrasion detection device |
| CN112594300A (en) * | 2020-12-21 | 2021-04-02 | 珠海格力电器股份有限公司 | Brake mechanism and motor with same |
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