CN202188049U - Low-noise electromagnetic brake - Google Patents
Low-noise electromagnetic brake Download PDFInfo
- Publication number
- CN202188049U CN202188049U CN2011202878188U CN201120287818U CN202188049U CN 202188049 U CN202188049 U CN 202188049U CN 2011202878188 U CN2011202878188 U CN 2011202878188U CN 201120287818 U CN201120287818 U CN 201120287818U CN 202188049 U CN202188049 U CN 202188049U
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- China
- Prior art keywords
- armature
- baffle plate
- stator case
- friction plate
- coil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a low-noise electromagnetic brake which comprises a stator casing, a coil, an armature and a friction disc component. The coil is installed in the stator casing; the armature is installed on one end of the stator casing, close to the coil; and a rubber O-shaped ring is installed between the armature and the stator casing. When the armature is attached to the stator casing, the armature contacts with the rubber O-shaped ring first before contacting with the stator casing, and the rigid shock on the stator casing by the armature is buffered, so that the noise is reduced when brake is released.
Description
Technical field
The utility model relates to a kind of electromagnetic brake, relates in particular to a kind of low noise electromagnetic brake of the noise that produces when effectively reducing armature and stator case adhesive, belongs to the production field of electromagnetic brake.
Background technique
Electromagnetic brake is the mechanical device that utilizes power supply and spring to brake as the countershaft or the brake disc of power source, mainly comprises the countershaft braking and brake disc is braked two types.
With the latter is example; The structure of the electromagnetic brake that brake disc (brake disc is connected with the machine that needs braking such as the rotor of winch) is braked is: comprise stator case, coil, armature, pedestal and two groups of friction plate assemblies; Said coil is installed in the said stator case, and said armature is installed in the end of said stator case near said coil through screw and Elastip pin, and said pedestal and said stator case are used screw attachment near an end of said armature; Form the U-shaped unit; This U-shaped unit can move on fixed pin shaft, and said fixed pin shaft one end is fixed on machinery (like the winch) support, and the other end is unsettled; Therefore the U-shaped unit forms a beam type structure on fixed pin shaft; Two friction plate assemblies are installed on respectively on said pedestal and the said armature, and each is organized said friction plate assembly and includes a friction plate, and two friction plates face to face; Central axial direction with said coil is an axial direction, and said pedestal can move by small distance on said axial direction, and said armature can move on said axial direction.Above-mentioned electromagnetic brake is mainly used on the crane gear (like elevator, tower crane etc.), and supporting with it is winch.Along with the continuous quickening of China's urbanization, new building is also more and more, increasingly high to the requirement of crane gear.As far as electromagnetic brake, the client is more and more tighter to the requirement of life-span, Security and the reliability of product, and energy-conservation, the comfort to product proposed clear and definite requirement simultaneously.
The working principle of above-mentioned electromagnetic brake is: when coil electricity produces magnetic field; The magnetic line of force passes stator case and armature; And pass the air gap of stator case and armature residual gap, make the armature of band friction plate assembly break away from the brake disc of winch, thus with the stator case adhesive; Brake disc squeezes the friction plate realization disengaging of the friction plate assembly of opening pedestal one side simultaneously, and brake disc is realized rotating; When coil losing electricity; Coil magnetic field disappears; Torsion spring in the stator case promotes armature makes the friction plate of the friction plate assembly above it contact with brake disc, and the friction plate of the friction plate assembly of drive pedestal one side contacts with brake disc, and the brake disc in rotation is braked.
The defective of above-mentioned electromagnetic brake is: between stator case and the armature, between armature and the friction plate, be rigid joint between pedestal and the friction plate; Middle nothing buffering noise abatement element; The friction plate of break on braking its armature of moment and pedestal is very big to the rigid impulse of brake disc; Break is also very big to the rigid impulse of stator case at adhesive moment armature; Cause break noise when braking and releasing braking all very big, have a strong impact on the comfort of mechanical terminations user (like elevator customer).
Summary of the invention
The purpose of the utility model just is to provide in order to address the above problem a kind of low noise electromagnetic brake of the noise that produces when effectively reducing armature and stator case adhesive.
The utility model is realized above-mentioned purpose through following technological scheme:
The utility model comprises stator case, coil, armature and friction plate assembly; Said coil is installed in the said stator case; Said armature is installed in the end of said stator case near said coil, between said armature and the said stator case rubber round section joint ring is installed.
Further; Said friction plate assembly comprises fixed cover, resilient pad and baffle plate, and said resilient pad connects through baffle plate screw and baffle plate lining between said fixed cover and the said baffle plate between said fixed cover and said baffle plate; Said baffle plate screw head is installed on the said baffle plate; An end face of said baffle plate lining contacts with said fixed cover, and another end face contacts with said baffle plate screw head, and friction plate is installed in the exterior edge face of said fixed cover.
The beneficial effect of the utility model is:
The utility model is through installing the rubber round section joint ring between stator case and armature; When stator case and armature adhesive (brake off); Utilize this rubber round section joint ring to slow down the impact of armature, thereby reach the purpose of the noise when reducing the model utility brake off stator case; Through between the fixed cover of friction plate assembly and baffle plate, resilient pad being installed; And between fixed cover and baffle plate, stay certain interval; When braking, utilize this gap to make resilient pad produce distortion; Utilize it to be out of shape and slow down of the impact of two groups of friction plate assemblies, thereby reach the purpose that reduces the noise of the utility model when braking brake disc; To sum up, the utility model is little at the running noise, helps improving end user's comfort level; Simultaneously can also reduce the rigidity friction between the parts, prolong life of product.
Description of drawings
Fig. 1 is the main TV structure schematic representation of the utility model;
Fig. 2 is the left TV structure schematic representation of the utility model;
Fig. 3 is that the A-A among Fig. 2 analyses and observe the structure for amplifying schematic representation;
Fig. 4 is that the B-B among Fig. 3 analyses and observe and dwindles structural representation;
Fig. 5 is the enlarged view of D among Fig. 3.
Wherein, 1-joint sleeve, 2-pedestal nut, 3-foundation bolt, 4-joint sleeve joint bolt, 5-baffle plate; The 6-resilient pad, 7-fixed cover, 8-mounting screw, 10-axle sleeve, 11-Returnning spring, 12-pedestal lining; 13-pedestal joint bolt, 15-release lever, 16-Elastip pin, 17-armature bolt, 19-stator case, 20-handle joint bolt; 21-handle outer nut, 24-coil, 25-rubber pad, 26-plain washer sheet, 27-armature joint bolt, 28-rubber round section joint ring; 29-armature, 30-torsion spring, 31-fixed support, 32-brake disc, 33-friction plate, 34-baffle plate screw; 35-baffle plate lining, the 36-pedestal, 37-adjusts screw, and 38-adjusts spring, and 39-adjusts nut, 51-support mounting hole.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further:
Electromagnetic brake for brake disc 32 is braked shown in the accompanying drawing.Like Fig. 1-shown in Figure 3; The utility model comprises stator case 19, coil 24, armature 29, pedestal 36, fixed support 31 and two groups of friction plate assemblies, and wherein, coil 24 is installed in the stator case 19; Armature 29 is installed in the end of stator case 19 near coil 24 through armature joint bolt 27; In the mounting hole that armature 29 is installed, be provided with torsion spring 30, armature joint bolt 27 passes torsion spring 30, and the head of armature joint bolt 27 is placed rubber pad 25 peaceful washer plates 26; The via hole of armature 29 cooperates with Elastip pin 16, and armature 29 can move axially along Elastip pin 16; Pedestal 36 is installed in the end of stator case 19 near armature 29 through pedestal joint bolt 13 and pedestal lining 12; In the axle sleeve hole (not shown) of fixed support 31, be provided with axle sleeve 10; Pedestal joint bolt 13 passes axle sleeve 10 with pedestal lining 12, and pedestal 36 can be in axial sliding on fixed support 31 with " U " shape unit that stator case 19 forms; Fixed support 31 is through two support mounting holes 51 and other fixed installation body (like the winch support, not shown) fixed installation, the friction radius tangential of the line of centres of two support mounting holes 51 and the friction plate of said friction plate assembly 33.The upper end of fixed support 31 also is connected with pedestal 36 with adjustment nut 39 through adjustment screw 37; Adjustment spring 38 is installed on the adjustment screw 37; The effect of adjustment screw 37, adjustment spring 38 and adjustment nut 39 is following: when install initial installation and adjustment back, gap; Adjust this three parts; Realize that fixed support 31 interior two friction plates 33 equate with gap between the brake disc 32, simultaneously armature 29 during by adhesive adjustment adjust spring 38 and can also promote whole " U " shape unit (pedestal 36+ stator case 19) and move to the direction of leaving stator case 19, thereby make 33 pairs of brake discs 32 of friction plate of pedestal 36 1 sides lose braking force; Be convenient to Returnning spring 11 friction plate 33 is ejected, guarantee to have the gap between friction plate 33 and the brake disc 32.
Like Fig. 3, Fig. 4 and shown in Figure 5, between armature 29 and the stator case 19 rubber round section joint ring 28 is installed.Armature 29 is during with stator case 19 adhesives,, contacts with rubber round section joint ring 28 earlier with before stator case 19 contacts at armature 29, slowed down the rigid impulse of 29 pairs of stator cases 19 of armature, thereby reduced the noise of the present invention when brake off.
As shown in Figure 3, said friction plate assembly comprises fixed cover 7, resilient pad 6 and baffle plate 5, and resilient pad 6 is between fixed cover 7 and baffle plate 5; Connect through baffle plate screw 34 and baffle plate lining 35 between fixed cover 7 and the baffle plate 5; Baffle plate screw 34 heads are installed on the baffle plate 5, and an end face of baffle plate lining 35 contacts with fixed cover 7, and another end face contacts with the head of baffle plate screw 34; 33, two friction plates 33 of friction plate are installed face to face in the exterior edge face of fixed cover 7.
As shown in Figure 3; Each is organized said friction plate assembly and all is connected with and makes two groups of said friction plate assemblies to each other away from the resetting means of direction motion; The structure of said resetting means is: the central axial direction with coil 24 is an axial direction; The direction of mounting hole that is used to install said friction plate assembly is parallel with said axial direction, is provided with several and the homoaxial blind hole of said mounting hole around the said mounting hole, and Returnning spring 11 is installed in the said blind hole; One end of Returnning spring 11 is installed in the bottom of said blind hole; The other end is installed on the baffle plate 5, and mounting screw 8 passes the axial bore of Returnning spring 11, and friction plate assembly is suspended in the said mounting hole and can moves axially.
As shown in Figure 3; Two groups of said friction plate assemblies all are installed with joint sleeve 1 through joint sleeve joint bolt 4 and pedestal nut 2 away from an end of its friction plate 33; The end face of joint sleeve 1 is the indent spherical; Be separately installed with the bolt that can tight face face contacts on armature 29 and the pedestal 36 with the end face of joint sleeve 1; The end face of armature bolt 17 and foundation bolt 3 is the evagination spherical, and wherein the end face of the joint sleeve 1 of one group of said friction plate assembly is corresponding with the position of the end face of armature bolt 17, and another end face of joint sleeve 1 of organizing said friction plate assembly is corresponding with the position of the end face of foundation bolt 3.
As shown in Figure 3; Stator case 19 is equipped with release lever 15 away from an end of armature 29; Central axial direction with coil 24 is an axial direction; Be provided with the handle through hole of said axial direction in the stator case 19, release lever 15 is connected with armature 29 through the handle joint bolt 20 that passes said handle through hole, and locked with handle outer nut 21.Under improper situation; Reach like the gap between sudden power or stator case 19 and armature 29 and to make armature 29 can't be by the magnetic force adhesive of coil 24 time; Friction plate 33 is braking with locked wheels dish 32 always; At this moment can pull release lever 15, make armature 29 near stator case 19, thus brake off.
Below in conjunction with Fig. 1-Fig. 3 the workflow of the utility model is specified:
Do not have at coil 24 under the situation of power supply input or dead electricity; The electromagnetic force that coil 24 does not produce electromagnetic force or generation disappears; In the stator case 19 several torsion springs 30 promote armature 29 along Elastip pin 16 axial directions to brake disc 32 directions move (being among Fig. 3) to left movement; Armature 29 drives armature bolt 17 together to left movement, and the baffle plate 5 of the friction plate assembly of armature bolt 17 promotion armature 29 1 sides is to left movement, because baffle plate 5 connects with fixed cover 7 through baffle plate screw 34 and baffle plate lining 35; So baffle plate 5 receives can promote resilient pad 6 and fixed cover 7 after the thrust, the friction plate 33 that fixed cover 7 promotes armature 29 1 sides contacts with brake disc 32.In this process; The positive pressure that produces when 33 pairs of brake discs of friction plate of armature 29 1 sides 32 is during greater than the positive pressure of 11 pairs of pedestals of pedestal 36 1 side Returnning springs this moment, 36 1 lateral retaining plates 5; Opposition pulling " U " shape unit (pedestal 36+ stator case 19) of the friction plate 33 of 32 pairs of armature 29 1 sides of brake disc moves to stator case 19 directions together; Foundation bolt 3 on the pedestal 36 promotes the friction plate assembly of pedestal 36 1 sides together to the motion of brake disc 32 directions, and the friction plate 33 of pedestal 36 1 sides contacts with brake disc 32.Be that fixed support 31 two interior friction plates 33 move to relative direction, the braking with locked wheels dish 32 together, thereby realize the braking of the present invention to brake disc 32, i.e. machinery (like winch) stop motion.
Get under the electric situation at coil 24; Coil 24 generates an electromagnetic field; The magnetic line of force passes stator case 19 and armature 29 and air gap between the two; Magnetic force overcomes the thrust of 30 pairs of armature 29 of torsion spring, attracts armature 29 to drive the direction motion (be in Fig. 3 move right) of armature bolt 17 to stator case 19.In this process; When the remaining positive pressure of 33 pairs of brake discs of friction plate of armature 29 1 sides 32 less than this moment armature 29 1 sides the positive pressure of 11 pairs of baffle plates 5 of Returnning spring the time; The friction plate assembly that the Returnning spring 11 of armature 29 1 sides promotes armature 29 1 sides breaks away from brake disc 32, and promptly the friction plate 33 of armature 29 1 sides breaks away from brake disc 32.When friction plate 33 leaves brake disc 32; The adjustment spring 38 of pedestal 36 between fixed support 31 promotes " U " shape element (pedestal 36 and stator case 19) and moves towards pedestal 36 directions; The Returnning spring 11 of pedestal 36 1 sides promotes the friction plate assembly disengaging brake disc 32 of pedestals 36 1 sides at this moment, and promptly the friction plate 33 of pedestal 36 1 sides breaks away from brake discs 32.Be that two friction plates 33 move in the opposite direction in the fixed support 31, throw off brake disc 32 together, machinery (like winch) begins to rotate.
In the said process, when stator case 19 and armature 29 adhesives (brake off), utilize rubber round section joint ring 28 to slow down the impact of 29 pairs of stator cases 19 of armature, thereby reach the purpose of the noise when reducing the utility model brake off; When braking; Friction plate assembly is to brake disc 32 motions; Utilize the gap between fixed cover 7 and the baffle plate 5 to make resilient pad 6 produce distortion, utilize it to be out of shape and slow down of the impact of two groups of friction plate assemblies, thereby reach the purpose that reduces the noise of the utility model when braking brake disc 32.
Claims (2)
1. low noise electromagnetic brake; Comprise stator case, coil, armature and friction plate assembly; Said coil is installed in the said stator case; Said armature is installed in the end of said stator case near said coil, it is characterized in that: between said armature and the said stator case rubber round section joint ring is installed.
2. low noise electromagnetic brake according to claim 1; It is characterized in that: said friction plate assembly comprises fixed cover, resilient pad and baffle plate; Said resilient pad is between said fixed cover and said baffle plate; Connect through baffle plate screw and baffle plate lining between said fixed cover and the said baffle plate, said baffle plate screw head is installed on the said baffle plate, and an end face of said baffle plate lining contacts with said fixed cover; Another end face contacts with said baffle plate screw head, and friction plate is installed in the exterior edge face of said fixed cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202878188U CN202188049U (en) | 2011-08-09 | 2011-08-09 | Low-noise electromagnetic brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202878188U CN202188049U (en) | 2011-08-09 | 2011-08-09 | Low-noise electromagnetic brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202188049U true CN202188049U (en) | 2012-04-11 |
Family
ID=45919502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202878188U Expired - Lifetime CN202188049U (en) | 2011-08-09 | 2011-08-09 | Low-noise electromagnetic brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202188049U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104773657A (en) * | 2015-04-17 | 2015-07-15 | 舒泳军 | Low-noise tower crane device and operating method thereof |
| CN104843592A (en) * | 2015-04-17 | 2015-08-19 | 李良荣 | Tower crane apparatus with characteristic of pneumatic adjusting, and operating method thereof |
| CN104291235B (en) * | 2014-11-04 | 2017-04-26 | 北京索德电气工业有限公司 | Magnet brake used for lifting equipment |
| CN109751347A (en) * | 2013-09-05 | 2019-05-14 | 约翰·约瑟夫·卡尼 | Embossed brake pads |
-
2011
- 2011-08-09 CN CN2011202878188U patent/CN202188049U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751347A (en) * | 2013-09-05 | 2019-05-14 | 约翰·约瑟夫·卡尼 | Embossed brake pads |
| CN109751347B (en) * | 2013-09-05 | 2021-04-30 | 约翰·约瑟夫·卡尼 | Embossed brake pad |
| CN104291235B (en) * | 2014-11-04 | 2017-04-26 | 北京索德电气工业有限公司 | Magnet brake used for lifting equipment |
| CN104773657A (en) * | 2015-04-17 | 2015-07-15 | 舒泳军 | Low-noise tower crane device and operating method thereof |
| CN104843592A (en) * | 2015-04-17 | 2015-08-19 | 李良荣 | Tower crane apparatus with characteristic of pneumatic adjusting, and operating method thereof |
| CN104843592B (en) * | 2015-04-17 | 2016-11-02 | 桂林市中天机械有限公司 | A kind of tower crane device by pneumatic regulation and operation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170906 Address after: Shuangliu District of Sichuan province 610000 Avenue Chengdu City West four No. 909 in Hong Kong Patentee after: Chengdu Ruidi Machinery Technology Co. Ltd. Address before: West Port Avenue 610000 Sichuan city in Chengdu Province, southwest of Shuangliu County Airport Development Zone No. 909 two Patentee before: Ruidi Machinery Ind Co., Ltd., Chengdu |
|
| TR01 | Transfer of patent right | ||
| CP03 | Change of name, title or address |
Address after: Shuangliu District of Sichuan province 610225 Avenue Chengdu City West four No. 909 in Hong Kong Patentee after: Chengdu Ruidi Zhiqu Technology Co.,Ltd. Address before: Shuangliu District of Sichuan province 610000 Avenue Chengdu City West four No. 909 in Hong Kong Patentee before: CHENGDU REACH MACHINERY Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120411 |
|
| CX01 | Expiry of patent term |