CN216763965U - Elevator safety gear emergency braking part and elevator emergency braking device - Google Patents
Elevator safety gear emergency braking part and elevator emergency braking device Download PDFInfo
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- CN216763965U CN216763965U CN202122514007.3U CN202122514007U CN216763965U CN 216763965 U CN216763965 U CN 216763965U CN 202122514007 U CN202122514007 U CN 202122514007U CN 216763965 U CN216763965 U CN 216763965U
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- safety gear
- elevator safety
- friction plate
- emergency brake
- elevator
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Abstract
The utility model discloses an emergency braking member of elevator safety gear, which comprises a mounting base plate and a friction plate, wherein the mounting base plate is provided with two mounting grooves which are respectively used for mounting the friction plate; the contact surface of friction disc and guide rail is for being opened the surface that has a plurality of horizontal v type grooves and vertical v type groove, the opening angle in v type groove is 60 degrees to 120 degrees.
Description
Technical Field
The utility model relates to the field of elevators, in particular to an emergency braking member of an elevator safety gear. The utility model also relates to an elevator emergency braking device.
Background
Because the friction coefficient of the ceramic friction plate is large, the dependence on the braking speed, the material and the hardness of the guide rail is small, and the guide rail can be used for modifying the reserved guide rail of the elevator to deal with various complex conditions, so that various manufacturers can widely apply the friction plate made of the material at present. However, the ceramic friction plate is generally easy to crack under the condition of impact load at the moment of triggering the safety tongs, and the stability of the friction coefficient is poor, so that the deceleration requirement of a type test is difficult to stably reach.
The friction plate design of the elevator emergency braking device in the prior art is generally designed for a new guide rail with a smooth surface or good lubrication, and the friction plate is generally made of a wear-resistant metal material. The friction plate surface adopts an inclined groove or a horizontal large-distance groove to discharge metal debris generated in braking, such as a fixed wedge or a sliding wedge in the publication CN 212356122U. However, after the elevator is actually used for more than ten years, the surface working condition of the guide rail is difficult to maintain in an initial state, and particularly under the condition of improper maintenance, the guide rail is rusted or oil stains are accumulated, so that the surface working condition of the guide rail is complicated. In addition, when old elevators are modernized, the remaining old guide rails are exposed to more complex surface conditions. The friction plate in the prior art is used for the guide rail working condition of rusting or accumulated oil stain, so that the friction force is unstable, and potential safety hazard is caused.
Disclosure of Invention
The utility model aims to solve the technical problem that the friction coefficient can be kept stable so as not to be damaged while the cost problem is solved.
In order to solve the technical problem, the utility model provides an emergency braking member of an elevator safety gear, which comprises a mounting base plate and a friction plate, wherein the mounting base plate is provided with two mounting grooves which are respectively used for mounting the friction plate; the contact surface of friction disc and guide rail is for being opened the surface that has a plurality of horizontal v type grooves and vertical v type groove, the opening angle in v type groove is 60 degrees to 120 degrees.
Preferably, the opening angle of the v-shaped groove is 90 degrees.
Preferably, the distance between the plurality of transverse v-shaped grooves is 0.5-5 mm.
Preferably, the spacing between the plurality of transverse v-grooves is 2 mm.
Preferably, the distance between the plurality of longitudinal v-shaped grooves is 0.5-5 mm.
Preferably, the pitch of the plurality of longitudinal v-grooves is 2 mm.
Preferably, the depth of the v-shaped groove is 0.5-1 mm.
Preferably, the v-groove depth is 0.5 mm.
Preferably, the friction plate is an alumina ceramic material, silicon nitride, silicon carbide or sialon.
Preferably, the friction plate is rectangular, trapezoidal or circular in shape.
Compared with the prior art, the utility model can deal with various working conditions and can not be damaged under high-strength impact.
Drawings
FIG. 1 is a schematic illustration of a friction plate of the present invention.
FIG. 2 is a schematic view of a friction plate mounting base plate according to the present invention.
FIG. 3 is a schematic view of a lower friction plate of the present invention.
Figure 4 is a detail elevation view of a lower friction plate of the present invention.
Figure 5 is a detailed top view of a lower friction plate of the present invention.
Figure 6 is a detailed view of a portion of a lower friction plate a of the present invention.
Description of the reference numerals
1 mounting base plate 2 Upper Friction plate
3 glue of the lower friction plate 11 overflows the round hole
31 lower friction plate edge
32 friction plate vertical slot 33 friction plate transverse slot
34 vertical slot spacing 35 vertical slot width
36 transverse grooving spacing 37 transverse grooving width
38 groove depth 39V groove opening angle
Detailed Description
Example 1
As shown in fig. 1, the emergency brake lining for elevator comprises a lining mounting base plate 1, an upper lining 2 and a lower lining 3.
As shown in fig. 2, two friction plate mounting rectangular grooves are formed in the friction plate mounting substrate 1, and 4 glue overflowing circular holes 11 are formed in each groove.
As shown in fig. 3, the lower friction plate 3 is an alumina ceramic friction plate, and has a lower friction plate edge 31, a lower friction plate vertical slot 32 and a lower friction plate transverse slot 33 on the periphery.
Glue is coated on the periphery and the bottom surfaces of the upper friction plate 2 and the lower friction plate 3, and then the glue is pressed into the rectangular groove on the friction plate mounting base plate 1 by using a tool. In the pressing-in process, the redundant glue at the bottom overflows the circular hole 11 and flows out through 4 glues, so that the uniform smearing of the glue is ensured, and the installation is more convenient and firm.
The friction contact surface of the upper friction plate 2 and the lower friction plate 3 slightly protrudes out of the friction plate mounting base plate 1.
As shown in fig. 4, 5, and 6, in order to prevent the friction plate from being broken, it is necessary to increase the friction coefficient of the friction plate appropriately according to the load and deceleration requirements. The lower friction plate 3 is provided with a groove form, a friction plate vertical V-shaped groove 32 and a friction plate transverse V-shaped groove 33 are arranged, and the vertical distance 34, the transverse distance 36, the vertical groove width 35, the transverse groove width 37, the groove depth 38 and the opening angle 39 of the V-shaped groove are adjusted.
Wherein, vertical interval 34 and horizontal interval 36, the value range 0.5 ~ 5mm, the bigger friction coefficient is the less for the interval. The effect is best when the vertical spacing 34 and the transverse V-shaped groove 36 are 2 mm.
The value range of the grooving depth 38 is 0.5-1 mm. The range of the groove depth 38 is related to the vertical distance 34 and the transverse distance 36, when the vertical distance 34 and the transverse distance 36 are small, the groove depth 38 is not too large, otherwise the ceramic friction plate is easy to break. When the distance reaches 4-5 mm, the grooving depth 38 can be 1 mm. The best effect is obtained when the groove depth 38 is 0.5 mm.
The value range of the opening angle 39 of the V-shaped groove is 60-120 degrees. The opening angle 39 of the V-shaped groove is 90 degrees, and the effect is optimal.
Example 2
The material of the alumina ceramic friction plate according to embodiment 1 may also be at least one of silicon nitride, silicon carbide, and sialon.
Example 3
Based on the friction plates in embodiment 1, the shapes of the upper friction plate 2 and the lower friction plate 3 may be, for example, trapezoidal or circular, and are not limited to rectangular.
The present invention has been described in detail with reference to the specific embodiments and examples, but these are not intended to limit the present invention. Many variations and modifications may be made by one of ordinary skill in the art without departing from the principles of the present invention, which should also be considered as within the scope of the present invention.
Claims (11)
1. An elevator safety gear emergency brake member, characterized in that: comprises a mounting base plate and a friction plate, wherein,
the mounting base plate is provided with two mounting grooves which are respectively used for mounting the friction plates;
the contact surface of friction disc and guide rail is for being opened the surface that has a plurality of horizontal v type grooves and vertical v type groove, the opening angle in v type groove is 60 degrees to 120 degrees.
2. The elevator safety gear emergency brake rigging of claim 1, wherein:
the opening angle of the v-shaped groove is 90 degrees.
3. The elevator safety gear emergency brake rigging of claim 1, wherein:
the space between the plurality of transverse v-shaped grooves is 0.5-5 mm.
4. The elevator safety gear emergency brake rigging of claim 1, wherein:
the spacing between the plurality of transverse v-grooves is 2 mm.
5. The elevator safety gear emergency brake rigging of claim 1, wherein:
the space between the plurality of vertical v-shaped grooves is 0.5-5 mm.
6. The elevator safety gear emergency brake rigging of claim 1, wherein:
the spacing between the plurality of longitudinal v-grooves is 2 mm.
7. The elevator safety gear emergency brake rigging of claim 1, wherein:
the depth of the v-shaped groove is 0.5-1 mm.
8. The elevator safety gear emergency brake rigging of claim 1, wherein:
the depth of the v-shaped groove is 0.5 mm.
9. The elevator safety gear emergency brake rigging of claim 1, wherein: the friction plate is made of alumina ceramic material, silicon nitride, silicon carbide or sialon.
10. The elevator safety gear emergency brake rigging of claim 1, wherein: the friction plate is rectangular, trapezoidal or circular.
11. An elevator emergency braking device, characterized in that:
comprising a plurality of elevator safety gear emergency brakes according to one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122514007.3U CN216763965U (en) | 2021-10-19 | 2021-10-19 | Elevator safety gear emergency braking part and elevator emergency braking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122514007.3U CN216763965U (en) | 2021-10-19 | 2021-10-19 | Elevator safety gear emergency braking part and elevator emergency braking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216763965U true CN216763965U (en) | 2022-06-17 |
Family
ID=81960271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122514007.3U Active CN216763965U (en) | 2021-10-19 | 2021-10-19 | Elevator safety gear emergency braking part and elevator emergency braking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216763965U (en) |
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2021
- 2021-10-19 CN CN202122514007.3U patent/CN216763965U/en active Active
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