CN114536207A - Production process and device for friction disc component of elevator brake - Google Patents
Production process and device for friction disc component of elevator brake Download PDFInfo
- Publication number
- CN114536207A CN114536207A CN202210187653.XA CN202210187653A CN114536207A CN 114536207 A CN114536207 A CN 114536207A CN 202210187653 A CN202210187653 A CN 202210187653A CN 114536207 A CN114536207 A CN 114536207A
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- grinding
- friction disc
- elevator brake
- parts
- friction
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 34
- 229910052580 B4C Inorganic materials 0.000 claims abstract description 18
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000000843 powder Substances 0.000 claims abstract description 18
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical class [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 13
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims abstract description 7
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims abstract description 7
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims abstract description 7
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000005642 Oleic acid Substances 0.000 claims abstract description 7
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims abstract description 7
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims abstract description 7
- 239000002270 dispersing agent Substances 0.000 claims abstract description 6
- 239000012188 paraffin wax Substances 0.000 claims abstract description 6
- 230000007246 mechanism Effects 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 3
- 239000003292 glue Substances 0.000 description 2
- 238000007731 hot pressing Methods 0.000 description 2
- 239000006061 abrasive grain Substances 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/02—Lapping machines or devices; Accessories designed for working surfaces of revolution
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/34—Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/34—Accessories
- B24B37/345—Feeding, loading or unloading work specially adapted to lapping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/06—Dust extraction equipment on grinding or polishing machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B57/00—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents
- B24B57/02—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents for feeding of fluid, sprayed, pulverised, or liquefied grinding, polishing or lapping agents
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/14—Anti-slip materials; Abrasives
- C09K3/1409—Abrasive particles per se
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a production process and a device of a friction disc component of an elevator brake, wherein friction discs on two sides of the friction disc component are respectively ground, and a grinding agent is continuously added to a grinding surface during grinding, wherein the grinding agent comprises 30-40 parts by weight of boron carbide powder, 15-20 parts by weight of oleic acid, 1-5 parts by weight of paraffin, 2-4 parts by weight of a dispersing agent and 2-4 parts by weight of activated carbon powder; the specification of the boron carbide powder is 150-270 meshes, and the mesh number of the activated carbon powder is smaller than that of the boron carbide powder. The invention has the advantages of fully fitting the friction plate assembly and the tractor base, ensuring that the brake has larger braking force in the early stage of use, meeting the requirement, eliminating potential safety hazard, along with low production cost and high production speed.
Description
Technical Field
The invention belongs to the field of elevator brake friction disc assemblies, and particularly relates to a production process and device of an elevator brake friction disc assembly.
Background
The traction machine of the elevator relies on a brake for braking, and a friction disc assembly is a key component of the brake, as in application No.: 202111075635.4 friction disc assembly (named as spline disc assembly in the patent) of multi-loop electromagnetic brake, including the mounting disc, to the convex step portion in both sides on the axis of mounting disc, step portion department is equipped with the splined hole with traction machine spindle connection, and two terminal surfaces of step portion are through the finish machining, and as the reference surface when processing the splined hole, the both sides of mounting disc all are equipped with the friction disc, the friction disc is used for improving the frictional force of stopper, improves braking effect promptly.
Most of the friction plates in the market are formed by hot-pressing and sintering abrasive particles after adding glue, and then are fixed on a mounting plate in a manner of combining screws and glue, and a friction surface for braking is formed on the mounting plate. Because the cooling speed of the friction plate after hot pressing is possibly too high and certain deformation is possibly caused, the flatness of the friction plate is insufficient, namely the flatness of the friction surface on the friction plate assembly is low, or the flatness of the mounting surface for placing the friction plate on the mounting plate is insufficient, the friction plate is possibly obliquely placed, and the verticality between the friction surface on the friction plate assembly and the spline hole is possibly poor; both of the above two possibilities result in the friction surface of the friction disc assembly not being fully attached to the machine base of the traction machine, so that the braking force of the brake may be relatively weak and may not meet the design requirements within a period of time just after the brake is mounted on the traction machine. After the brake is used for a period of time, the friction plate can be abraded to form a friction surface which can be completely attached to the base of the traction machine again, and the braking force meeting the design requirement of the brake is achieved, so that few manufacturers pay attention to the problem that the braking force of the brake in the early stage of use is possibly insufficient, but certain potential safety hazards exist after all. Therefore, a new process and apparatus for producing an elevator brake friction disc assembly is needed.
Disclosure of Invention
The invention aims to provide a production process and a device for a friction disc component of an elevator brake. The invention has the advantages of fully fitting the friction plate assembly and the tractor base, ensuring that the brake has larger braking force in the early stage of use, meeting the requirement, eliminating potential safety hazard, along with low production cost and high production speed.
The technical scheme of the invention is as follows: a production process of a friction disc component of an elevator brake comprises the steps of grinding friction plates on two sides of the friction disc component respectively, and continuously adding grinding agents to a grinding surface during grinding, wherein the grinding agents comprise 30-40 parts by weight of boron carbide powder, 15-20 parts by weight of oleic acid, 1-5 parts by weight of paraffin, 2-4 parts by weight of a dispersing agent and 2-4 parts by weight of activated carbon powder.
In the production process of the friction disc component of the elevator brake, the specification of the boron carbide powder is 150-270 meshes, and the mesh number of the activated carbon powder is smaller than that of the boron carbide powder.
In the production process of the friction disc component of the elevator brake, the specification of the boron carbide powder is 200 meshes, and the specification of the activated carbon powder is 100 meshes.
The device for realizing the production process of the elevator brake friction disc assembly comprises a bottom plate, wherein a vertical plate is arranged on the bottom plate, a horizontal rotating shaft is arranged on the vertical plate, the rotating shaft is connected with the vertical plate through a deep groove ball bearing, a driving mechanism is arranged on the rotating shaft, a limiting ring is arranged on the rotating shaft, a spline part and a threaded part are sequentially arranged on one side, away from the deep groove ball bearing, of the limiting ring, the diameter of the threaded part is smaller than that of the spline part, the rotating shaft is connected with the threaded part through the spline part, a screw sleeve is arranged on the threaded part, a pressing cap is arranged on the outer side of the screw sleeve, the inner diameter of the pressing cap is larger than that of the spline part, and the screw sleeve and the bottom surface of the pressing cap are fixed; the outside of spline portion is equipped with annular abrasive disc, is equipped with elastic mechanism on the abrasive disc.
In the aforesaid realize device of elevator brake friction disc subassembly production technology, the both ends of pivot are located the both sides of riser respectively, actuating mechanism includes the follower fixed with the pivot, and follower and spacing ring are located the both sides of riser respectively, and the action wheel is connected through annular hold-in range to the follower, is equipped with the motor fixed with the riser on the action wheel.
In the device for realizing the production process of the friction disc assembly of the elevator brake, the elastic mechanism comprises at least three horizontal sliding shafts, one end of each sliding shaft is fixed with the grinding disc, the other end of each sliding shaft penetrates through the vertical plate and is provided with the anti-falling head, the sliding shaft is sleeved with the spiral spring, and the spring is located between the vertical plate and the grinding disc.
In the device for realizing the production process of the elevator brake friction disc assembly, the linear bearing is arranged between the sliding shaft and the vertical plate and is fixed with the vertical plate.
In the device for realizing the production process of the friction disc assembly of the elevator brake, the outer side end face of the grinding disc is provided with the plurality of circumferentially distributed chip grooves, the outer side end face of the grinding disc is provided with the annular grinding groove, the grinding groove penetrates through the chip grooves, and the depth of the grinding groove is smaller than that of the chip grooves.
In the device for realizing the production process of the friction disc assembly of the elevator brake, the planes of the two side walls of the chip grooves respectively penetrate through the axis of the grinding disc.
In the device for realizing the production process of the friction disc assembly of the elevator brake, the bottom surface of the grinding groove is provided with a plurality of feeding holes, and the inner side of the grinding disc is provided with a pipe joint connected with the feeding holes.
Compared with the prior art, the friction disc assembly is used for reprocessing the existing friction disc assembly, the abrasive of a specific component formula is used for grinding the friction disc on the friction disc assembly, the flatness of the friction surface on the friction disc assembly is good, the coaxiality of the friction disc and the spline hole of the friction disc assembly is good, the friction surface on the friction disc assembly can be completely attached to a tractor base, the friction disc assembly can generate large braking force after being installed on a brake, the braking force of the brake can meet the design requirement in the early stage of use, and potential safety hazards are eliminated. In the grinding agent, the boron carbide powder has high hardness and plays a role of abrasive grains; oleic acid has high viscosity and is used as a carrier of boron carbide powder to make the grinding agent in a paste shape; the paraffin is used for improving the lubricity of the grinding agent, reducing the using amount of the grinding agent and reducing the production cost; the dispersing agent is used for uniformly distributing the boron carbide powder in the grinding agent, so that the boron carbide powder can be uniformly distributed on a grinding surface during grinding, the uniform grinding is ensured, and the grinding effect is improved; the active carbon powder has two functions, the first function is to absorb a part of oleic acid by utilizing the porous characteristic of the active carbon powder to increase the consistency of the grinding agent, so that the grinding agent cannot be rapidly discharged in the grinding process, the dosage of the grinding agent is further reduced, the production cost is reduced, the other function is to absorb ground scraps, so that the scraps are stabilized in the grinding agent and leave a grinding surface along with the discharge of the grinding agent, and the grinding effect and the grinding speed are improved. Therefore, the invention has the advantages of fully fitting the friction plate assembly and the tractor base, ensuring that the brake has larger braking force in the early stage of use, meeting the requirement, eliminating potential safety hazard, along with low production cost and high production speed.
Drawings
FIG. 1 is a front view of a friction disc assembly secured to an apparatus.
Fig. 2 is a left side view of the device.
Fig. 3 is a front view of the abrasive disk.
Fig. 4 is a left side view of the abrasive disk.
The labels in the figures are: 1-bottom plate, 2-vertical plate, 3-rotating shaft, 4-deep groove ball bearing, 5-limit ring, 6-spline part, 7-screw thread part, 8-thread sleeve, 9-pressing cap, 10-grinding disc, 11-driven wheel, 12-synchronous belt, 13-driving wheel, 14-motor, 15-sliding shaft, 16-rail, 17-spring, 18-linear bearing, 19-friction plate, 20-chip groove, 21-grinding groove, 22-feeding hole and 23-pipe joint.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention.
Examples are given. The production device of the elevator brake friction disc assembly comprises a bottom plate 1, wherein a vertical plate 2 is arranged on the bottom plate 1, a horizontal rotating shaft 3 is arranged on the vertical plate 2, the rotating shaft 3 is connected with the vertical plate 2 through a deep groove ball bearing 4, a driving mechanism is arranged on the rotating shaft 3, a limiting ring 5 is arranged on the rotating shaft 3, a spline part 6 and a thread part 7 are sequentially arranged on one side, away from the deep groove ball bearing 4, of the limiting ring 5, the diameter of the thread part 7 is smaller than that of the spline part 6, the rotating shaft 3 is connected with the thread part 7 through the spline part 6, a threaded sleeve 8 is arranged on the thread part 7, a pressing cap 9 is arranged on the outer side of the threaded sleeve 8, the inner diameter of the pressing cap 9 is larger than that of the spline part 6, and the threaded sleeve 8 is fixed with the bottom surface of the pressing cap 9; an annular grinding disc 10 is arranged on the outer side of the spline part 6, and an elastic mechanism is arranged on the grinding disc 10.
The both ends of pivot 3 are located the both sides of riser 2 respectively, actuating mechanism includes the follower 11 of fixing with pivot 3, and follower 11 and spacing ring 5 are located the both sides of riser 2 respectively, and follower 11 passes through annular hold-in range 12 and connects action wheel 13, is equipped with the motor 14 fixed with riser 2 on the action wheel 13.
The elastic mechanism comprises at least three horizontal sliding shafts 15, one end of each sliding shaft 15 is fixed with the grinding disc 10, the other end of each sliding shaft 15 penetrates through the vertical plate 2 and is provided with an anti-falling head 16, a spiral spring 17 is sleeved on each sliding shaft 15, and the spring 17 is located between the vertical plate 2 and the grinding disc 10.
And a linear bearing 18 is arranged between the sliding shaft 15 and the vertical plate 2, and the linear bearing 18 is fixed with the vertical plate 2.
The outer side end face of the grinding disc 10 is provided with a plurality of circumferentially distributed chip removal grooves 20, the outer side end face of the grinding disc 10 is provided with an annular grinding groove 21, the grinding groove 21 penetrates through the chip removal grooves 20, the depth of the grinding groove 21 is smaller than that of the chip removal grooves 20, and the inner diameter and the outer diameter of the grinding groove 21 are respectively matched with the inner diameter and the outer diameter of a friction plate on the friction disc assembly.
The planes of the two side walls of the chip grooves 20 respectively penetrate through the axis of the grinding disc 10.
A plurality of feeding holes 22 are arranged on the bottom surface of the grinding groove 21, and a pipe joint 23 connected with the feeding holes 22 is arranged on the inner side of the grinding disc 10.
The production device has the advantages of simple structure and long service life.
The process comprises the following steps: preparing an abrasive, wherein the abrasive comprises, by weight, 30-40 parts of boron carbide powder, 15-20 parts of oleic acid, 1-5 parts of paraffin, 2-4 parts of a dispersing agent and 2-4 parts of activated carbon powder (optimally 35 parts of boron carbide powder, 17 parts of oleic acid, 3 parts of paraffin, 3 parts of a dispersing agent and 3 parts of activated carbon powder), wherein the specification of the boron carbide powder is 150-270 meshes, the optimal specification is 200 meshes, and the specification of the activated carbon powder is 100 meshes. A screw type feeder is taken, the grinding machine is placed into a hopper of the feeder, and a discharge end of the feeder is connected with a pipe joint 23 through a hose.
And rotating the pressing cap 9, detaching the screw sleeve 8 from the thread part 7, sleeving the friction disc assembly on the spline part 6, matching the spline part 6 with a spline hole of the friction disc assembly, then screwing the screw sleeve 8 on the thread part 7 again, and along with screwing of the screw sleeve 8, contacting the pressing cap 9 with a step of the friction disc assembly and pushing the friction disc assembly to move towards the limit ring 5 until the limit ring 5 is contacted with one end surface of the step, so that the friction disc assembly and the rotating shaft 3 are ensured to be coaxial. During the movement of the friction disc assembly, the grinding disc 10 is pushed, the spring 17 is compressed and the friction discs 19 inside the friction disc assembly enter the grinding grooves 21.
The feeder is started and the grinder is slowly transported through the feeder, through the hose into each pipe joint 23 and into the grinding trough 21. The motor 14 is started, the motor 14 drives the driving wheel 13 to rotate, the driving wheel 13 drives the driven wheel 11 to rotate through the synchronous belt 12, and the driven wheel drives the friction disc assembly to rotate through the rotating shaft 3 and the spline part 6. The abrasive grinds the friction plate 19 on the inner side of the friction plate assembly to flatten the friction surface on the friction plate 19. The friction disc assembly is then removed and the direction reversed and the other friction disc 19 on the friction disc assembly is lapped.
The invention has the advantages of fully fitting the friction plate assembly and the tractor base, ensuring that the brake has larger braking force in the early stage of use, meeting the requirement, eliminating potential safety hazard, along with low production cost and high production speed.
Claims (10)
1. Production process of friction disc components of elevator brakes is characterized in that: and respectively grinding the friction plates on two sides of the friction plate assembly, and continuously adding a grinding agent to a grinding surface during grinding, wherein the grinding agent comprises 30-40 parts by weight of boron carbide powder, 15-20 parts by weight of oleic acid, 1-5 parts by weight of paraffin, 2-4 parts by weight of a dispersing agent and 2-4 parts by weight of activated carbon powder.
2. The process for producing an elevator brake friction disc assembly according to claim 1, wherein: the specification of the boron carbide powder is 150-270 meshes, and the mesh number of the activated carbon powder is smaller than that of the boron carbide powder.
3. The process for producing an elevator brake friction disc assembly according to claim 2, wherein: the specification of the boron carbide powder is 200 meshes, and the specification of the activated carbon powder is 100 meshes.
4. Device for realizing the process for producing an elevator brake friction disc assembly according to any of claims 1 to 3, characterized in that: the novel deep groove ball bearing comprises a base plate (1), a vertical plate (2) is arranged on the base plate (1), a horizontal rotating shaft (3) is arranged on the vertical plate (2), the rotating shaft (3) is connected with the vertical plate (2) through a deep groove ball bearing (4), a driving mechanism is arranged on the rotating shaft (3), a limiting ring (5) is arranged on the rotating shaft (3), a spline part (6) and a threaded part (7) are sequentially arranged on one side, away from the deep groove ball bearing (4), of the limiting ring (5), the diameter of the threaded part (7) is smaller than that of the spline part (6), the rotating shaft (3) is connected with the threaded part (7) through the spline part (6), a threaded sleeve (8) is arranged on the threaded part (7), a pressing cap (9) is arranged on the outer side of the threaded sleeve (8), the inner diameter of the pressing cap (9) is larger than that of the spline part (6), and the threaded sleeve (8) is fixed with the bottom surface of the pressing cap (9); an annular grinding disc (10) is arranged on the outer side of the spline part (6), and an elastic mechanism is arranged on the grinding disc (10).
5. The device for realizing the production process of the friction disc component of the elevator brake according to claim 4, is characterized in that: the both ends of pivot (3) are located the both sides of riser (2) respectively, actuating mechanism includes follower (11) fixed with pivot (3), and follower (11) and spacing ring (5) are located the both sides of riser (2) respectively, and action wheel (13) are connected through annular hold-in range (12) in follower (11), are equipped with motor (14) fixed with riser (2) on action wheel (13).
6. The device for realizing the production process of the friction disc component of the elevator brake according to claim 4, characterized in that: the elastic mechanism comprises at least three horizontal sliding shafts (15), one end of each sliding shaft (15) is fixed with the grinding disc (10), the other end of each sliding shaft (15) penetrates through the vertical plate (2) and is provided with an anti-falling head (16), a spiral spring (17) is sleeved on each sliding shaft (15), and the spring (17) is located between the vertical plate (2) and the grinding disc (10).
7. The apparatus for carrying out a process for manufacturing an elevator brake friction disc assembly as defined in claim 6, wherein: a linear bearing (18) is arranged between the sliding shaft (15) and the vertical plate (2), and the linear bearing (18) is fixed with the vertical plate (2).
8. The device for realizing the production process of the friction disc component of the elevator brake according to claim 4, is characterized in that: the outside end face of abrasive disc (10) is equipped with a plurality of circumference distribution's chip groove (20), be equipped with annular grinding groove (21) on the outside end face of abrasive disc (10), grinding groove (21) pass and are equipped with chip groove (20), and the degree of depth of grinding groove (21) is less than the degree of depth of chip groove (20).
9. The apparatus for carrying out a process for manufacturing an elevator brake friction disc assembly as defined in claim 8, wherein: the planes of the two side walls of the chip grooves (20) respectively penetrate through the axis of the grinding disc (10).
10. The apparatus for carrying out a process for manufacturing an elevator brake friction disc assembly as defined in claim 8, wherein: the bottom surface of the grinding groove (21) is provided with a plurality of feeding holes (22), and the inner side of the grinding disc (10) is provided with a pipe joint (23) connected with the feeding holes (22).
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CN202210187653.XA CN114536207B (en) | 2022-02-28 | 2022-02-28 | Production process and device for friction disc assembly of elevator brake |
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CN206800049U (en) * | 2017-04-07 | 2017-12-26 | 湖北三江航天江北机械工程有限公司 | Friction frock for double twisting device tension force brake pad |
CN208697128U (en) * | 2018-08-23 | 2019-04-05 | 自贡东新电碳有限责任公司 | Graphite grazing seat grinding tool |
CN214213236U (en) * | 2021-01-16 | 2021-09-17 | 天津顺祥通农业科技有限公司 | Section bar grinding device is used in big-arch shelter pipe production |
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2022
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GB1562533A (en) * | 1976-04-27 | 1980-03-12 | Stahli A | Adaptor device for a lapping machine |
CN2644093Y (en) * | 2003-08-29 | 2004-09-29 | 江苏兴达钢帘线股份有限公司 | High-speed grinder |
CN103080592A (en) * | 2010-09-08 | 2013-05-01 | 三菱电机株式会社 | Braking apparatus, brake lining, method for manufacturing brake lining, and elevator system |
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CN114536207B (en) | 2024-07-23 |
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