An easily replaceable elevator friction plate

Abstract

The utility model discloses an elevator friction plate easy to replace in the technical field of elevator fittings, including steel back, the surface of steel back is passed through a plurality of first holes, friction base material is opened with the second hole corresponding with through -hole to the surface of friction base material, the sub -mother bolt, the sub -mother bolt includes sub -screw bolt and female screw sleeve, the sub -screw bolt is through one side friction base material's second hole and extends to the first hole, and the female screw sleeve is through the second hole of the other side friction base material and extends to the first hole and is connected with the sub -screw bolt after, adopt the sub -mother bolt and fix the friction base material of steel back both sides on the surface of steel back, can limit the sub -screw bolt and tighten female screw sleeve or limit female screw sleeve and tighten sub -screw bolt when assembling, after docking, with the aid of screwdriver can fix both sides friction base material simultaneously, and the operation is convenient, and the dismounting speed is fast.

Description

Technical Field

[0001] This utility model relates to the technical field of elevator accessories, and in particular to an easily replaceable elevator friction plate. Background Technology

[0002] The friction pads of an elevator brake are a type of friction material used to generate resistance through frictional contact with the brake disc when the elevator needs to stop or decelerate, thereby achieving a smooth stop for the elevator.

[0003] The friction pads of elevator brakes are wear parts. Prolonged friction will reduce their surface roughness, thus affecting the braking effect of the elevator. Therefore, they need to be replaced in time. The steel back of the friction pad and the friction substrate are usually bonded together by an adhesive layer. Cleaning the adhesive layer is troublesome when replacing the friction pad. To facilitate the assembly and disassembly of friction pads, existing technologies, such as the patent publication number CN208268265U, disclose an anti-extrusion / shear connection structure for composite brake discs. Two sets of composite material friction discs are stacked and locked to both sides of a support disc via this connection structure. The friction discs have stepped through holes, and the support disc has bolt through holes corresponding to these stepped through holes. Stepped grooves are provided at both ends of the bolt through holes. This connection structure includes two-stage countersunk sleeves, connecting bolts, and connecting nuts. The two-stage countersunk sleeves are in two sets, respectively inserted into the stepped through holes and stepped grooves aligned with the two sets of friction discs and support discs. Each set of countersunk sleeves has two outer steps that mate with the stepped through holes and stepped grooves, respectively. The connecting bolts are inserted through the inner holes and bolt through holes of the two sets of countersunk sleeves, and the connecting nuts lock the two sets of countersunk sleeves, clamping and locking the friction discs and support discs.

[0004] The shortcomings of the existing patented technology are: by passing one end of the bolt through the support plate and the friction plates on both sides and then connecting them with a nut, the internal space of the sinking sleeve is narrow, and the nut is difficult to operate in the sinking sleeve, resulting in slow disassembly and assembly speed. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of the present invention, to avoid obscuring the purpose of these documents, and such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Therefore, the purpose of this utility model is to provide an easy-to-replace elevator friction plate. The friction base material on both sides of the steel back is fixed to the surface of the steel back using male and female bolts. During assembly, the female bolt can be restricted from tightening the female thread sleeve or the female thread sleeve can be restricted from tightening the female bolt. After docking, the friction base material on both sides can be fixed at the same time with the help of a screwdriver. The operation is convenient and the disassembly and assembly speed is fast.

[0007] To solve the above-mentioned technical problems, this utility model provides an easy-to-replace elevator friction plate, which adopts the following technical solution: it includes a steel back, the surface of which has a plurality of first holes; a friction substrate, the surface of which has second holes corresponding to the through holes; and a male and female bolt, the male and female bolt including a male bolt and a female threaded sleeve, the male bolt extending through the second hole of one side of the friction substrate into the first hole, and the female threaded sleeve extending through the second hole of the other side of the friction substrate into the first hole and then connecting with the male bolt.

[0008] Optionally, four first holes are provided, and the four first holes are arranged at equal angles with the axis of the steel back as the center line.

[0009] Optionally, the second hole is a stepped hole.

[0010] Optionally, the sub-bolt includes a bolt body with external threads on its surface, and one end of the bolt body is provided with a first connector adapted to the stepped hole.

[0011] Optionally, the female threaded sleeve includes a sleeve body, the inner wall of which has a threaded hole adapted to the external thread, and one end of the sleeve body is provided with a second connector adapted to the stepped hole.

[0012] Optionally, the surfaces of the first connector and the second connector are provided with control grooves, which are either cross grooves or hexagonal grooves.

[0013] Optionally, gaskets are fitted onto the exterior of both the plug and the sleeve.

[0014] Optionally, the friction substrate is a single ring with several grooves on its surface.

[0015] In summary, this utility model has at least one of the following beneficial effects:

[0016] This utility model uses male and female bolts to fix the friction substrates on both sides of the steel back to the surface of the steel back. During assembly, it can restrict the male bolt from tightening the female threaded sleeve or restrict the female threaded sleeve from tightening the male bolt. After docking, the friction substrates on both sides can be fixed at the same time with the help of a screwdriver. It is easy to operate and quick to disassemble and assemble. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This utility model Figure 1 A schematic diagram of the left-side view structure;

[0020] Figure 3 This is a schematic diagram of the sub-bolt structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the female threaded sleeve structure of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Steel back; 2. First hole; 3. Friction base material; 4. Second hole; 5. Sub-bolt; 501. Bolt body; 502. External thread; 503. First connector; 6. Female threaded sleeve; 601. Sleeve body; 602. Threaded hole; 603. Second connector; 7. Control groove; 8. Groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example 1

[0027] Reference Figures 1-4This utility model discloses an easily replaceable elevator friction plate, including a steel back 1, the surface of which has a plurality of first holes 2; a friction substrate 3, the surface of which has second holes 4 corresponding to the through holes; and a male and female bolt, the male and female bolt including a female bolt 5 and a female threaded sleeve 6, the female bolt 5 extending through the second hole 4 of one side of the friction substrate 3 into the first hole 2, and the female threaded sleeve 6 extending through the second hole 4 of the other side of the friction substrate 3 into the first hole 2 and then connecting with the female bolt 5.

[0028] Using the above structure, the friction substrates 3 on both sides of the steel back 1 are fixed to the surface of the steel back 1 using male and female bolts. During assembly, the female bolt 5 can be restricted from tightening the female thread sleeve 6 or the female thread sleeve 6 can be restricted from tightening the female bolt 5. After docking, the friction substrates 3 on both sides can be fixed at the same time with the help of a screwdriver. The operation is convenient and the disassembly and assembly speed is fast.

[0029] In detail, the number of first holes 2 is at least two. In this embodiment, four first holes 2 are provided. The four first holes 2 are arranged at equal angles with the axis of the steel back 1 as the center line to ensure the stability of the friction substrate 3 after connection.

[0030] In detail, in this embodiment, the second hole 4 is a stepped hole. The sub-bolt 5 includes a bolt body 501, the surface of which has an external thread 502, and one end of the bolt body 501 is provided with a first connector 503 adapted to the stepped hole. The female threaded sleeve 6 includes a sleeve body 601, the inner wall of which has a threaded hole 602 adapted to the external thread 502, and one end of the sleeve body 601 is provided with a second connector 603 adapted to the stepped hole; the first connector 503 and the second connector 603 are confined within the stepped hole, and both the bolt body 501 and the sleeve body 601 can penetrate the stepped hole. After the bolt body 501 and the sleeve body 601 are aligned, they are connected through the external thread 502 and the threaded hole 602. The first connector 503 is located on one side of the friction substrate 3 in close contact with the steel back 1 within the stepped hole, and the second connector 603 is located on the other side of the friction substrate 3 in close contact with the steel back 1 within the stepped hole. If the threads on the surfaces of the male bolt 5 and the female threaded sleeve 6 are worn, the male bolt 5 and the female threaded sleeve 6 can be replaced directly without replacing the steel backing 1.

[0031] In detail, in this embodiment, the surfaces of the first connector 503 and the second connector 603 are provided with control grooves 7. The control grooves 7 are cross grooves or hexagonal grooves. The control grooves 7 facilitate the rotation of the sub-bolt 5 or the female threaded sleeve 6. The maintenance personnel only need to restrict the sub-bolt 5 to tighten the female threaded sleeve 6 or restrict the female threaded sleeve 6 to tighten the sub-bolt 5 to fix the friction base materials 3 on both sides at the same time.

[0032] In detail, in this embodiment, washers 9 are fitted on the outside of both the bolt body 501 and the sleeve body 601 to prevent the first connector 503 and the second connector 603 from directly contacting the stepped hole of the friction substrate 3, thereby providing pre-tightening force.

[0033] In detail, in this embodiment, the friction substrate 3 can be a plurality of separate blocks arranged on the surface of the steel backing 1, or it can be as follows: Figures 1-2 The ring shown is a single piece. When it is made of split blocks, the split blocks on both sides of the steel back 1 are connected by a set of male and female bolts. Whether it is a split block or a ring, its surface has several grooves 8. The functions of the grooves 8 include chip removal, noise reduction, heat dissipation and drainage.

[0034] Working principle:

[0035] When the friction base material 3 needs to be replaced, the operator first holds the first connector 503 with one hand and the second connector 603 with the other hand. Then, after the bolt body 501 and the sleeve body 601 are aligned, the first connector 503 or the second connector 603 is rotated to achieve initial alignment. Then, a screwdriver is inserted into the control groove 7 to restrict the male bolt 5 or the female threaded sleeve 6. Then, the female threaded sleeve 6 or the male bolt 5 is rotated from the other side with a screwdriver to achieve connection and separation between the male bolt 5 and the female threaded sleeve 6. The friction base materials 3 on both sides can be fixed or removed at the same time. The operation is convenient and the disassembly and assembly speed is fast.

[0036] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. An easily replaceable elevator friction plate, characterized in that: include A steel back (1) has a plurality of first holes (2) penetrating its surface; Friction substrate (3), the surface of which has a second hole (4) corresponding to the through hole; The male and female bolts include a male bolt (5) and a female threaded sleeve (6). The male bolt (5) extends into the first hole (2) through the second hole (4) of the friction substrate (3) on one side. The female threaded sleeve (6) extends into the first hole (2) through the second hole (4) of the friction substrate (3) on the other side and is then connected to the male bolt (5).

2. The easily replaceable elevator friction plate according to claim 1, characterized in that: The first hole (2) has four holes, and the four first holes (2) are arranged at equal angles with the axis of the steel back (1) as the center line.

3. The easily replaceable elevator friction plate according to claim 1, characterized in that: The second hole (4) is a stepped hole.

4. The easily replaceable elevator friction plate according to claim 1, characterized in that: The sub-bolt (5) includes a bolt body (501), the surface of which is provided with external threads (502), and one end of the bolt body (501) is provided with a first connector (503) adapted to the stepped hole.

5. The easily replaceable elevator friction plate according to claim 4, characterized in that: The female threaded sleeve (6) includes a sleeve body (601), the inner wall of which has a threaded hole (602) adapted to the external thread (502), and one end of the sleeve body (601) is provided with a second connector (603) adapted to the stepped hole.

6. The easily replaceable elevator friction plate according to claim 5, characterized in that: The first connector (503) and the second connector (603) have control grooves (7) on their surfaces. The control grooves (7) are cross grooves or hexagonal grooves.

7. The easily replaceable elevator friction plate according to claim 5, characterized in that: Both the plug (501) and the sleeve (601) are fitted with washers (9).

8. An easily replaceable elevator friction plate according to any one of claims 1-7, characterized in that: The friction substrate (3) is a single ring, and the surface of the ring has several grooves (8).

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