Embedded friction disc

Abstract

The utility model discloses an embedded friction disk, which relates to the technical field of friction disks, and comprises a friction disk body, the upper surface and the lower surface of the friction disk body are friction surfaces, the upper surface and the lower surface of the friction disk body are respectively provided with a second groove, and a friction plate is embedded in the inner surface of each second groove. The upper surface of the friction plate and the friction face of the friction disc body are located in the same plane, and the friction disc body is an aluminum disc and is of a cylindrical structure. The friction plate is embedded into the friction disc body through cooperation of the second groove, the third groove, the limiting groove and the limiting ring, the firmness of installation of the friction plate and the friction disc body is improved through the special shapes of the boss and the third groove, connection of the friction plate and the second groove is tighter through cooperation of the outer sealing ring and the inner sealing ring, and the friction plate and the friction disc body are more stable. Gaps between the friction disc body and the friction plates are avoided, so that foreign matters are prevented from entering between the friction disc body and the friction plates, and the stability of the friction disc in the using process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of friction discs, in particular to an embedded friction disc. Background Art

[0002] The traditional elevator brake friction disc is glued together with the friction plate on the outside of the aluminum disc by glue. There is no position on the outside of the aluminum disc to position the friction plate, only relative position. If any unknown object falls into the friction disc position, it is likely to cause a gap between the friction plate and the aluminum disc, thereby affecting the braking torque, indirectly damaging the brake armature, and affecting the safety of the elevator. In addition, due to objective factors such as transportation or customer site, the stability of the friction disc will be affected, thus affecting the actual application effect. Therefore, an embedded friction disc is urgently needed.

[0003] Chinese patent document CN210889848U discloses an embedded friction disc, wherein the embedded friction disc embeds friction plates on both sides of the disc body of the friction disc, thereby effectively preventing foreign matter from entering between the two and causing a gap between the two, thereby improving stability during use, improving the ability to resist external interference, and thus improving safety.

[0004] The existing technology has the following problems:

[0005] During the installation and use of the existing friction disc, no protective mechanism is set on the inner wall of the friction disc, which causes the inner wall of the friction disc to be easily damaged after long-term use. In addition, when the friction plate is embedded in the friction disc, due to the tolerance of the friction disc during the processing, when a gap appears between the two when the friction plate is embedded in the friction disc, the connection between the friction plate and the friction disc is prone to become loose. Utility Model Content

[0006] The utility model provides an embedded friction disc to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0008] An embedded friction disc comprises a friction disc body, wherein the upper and lower surfaces of the friction disc body are friction surfaces, the upper and lower surfaces of the friction disc body are both provided with a second groove, a friction plate is embedded and installed in the inner surface of the second groove, the upper surface of the friction plate and the friction surface of the friction disc body are in the same plane, the friction disc body is an aluminum disc, and the friction disc body is in a cylindrical structure, an inner sleeve is embedded and installed in the inner side wall of the friction disc body, a groove one is provided on the upper surface of the friction disc body, and the groove one is located on the inner side of the groove two, the lower surface of the groove one is fixedly installed with the upper position of the inner sleeve by screws, the friction disc body, the inner sleeve and the friction plate are arranged concentrically, and the friction disc body and the inner side wall of the second groove are both provided with an adhesive.

[0009] Preferably, the left side of the cross-section of the inner sleeve is L-shaped, and the lower surface of the groove one is provided with three positioning grooves distributed in a circular array, and three positioning columns distributed in a circular array are fixedly installed on the lower surface of the top of the inner sleeve, and the outer wall of the positioning column is plugged into the inner wall of the positioning groove, and the lower position of the positioning column and the positioning groove are both conical structures.

[0010] Preferably, the second groove and the left side of the friction plate cross section are both in a T-shaped structure.

[0011] Preferably, an inner sealing ring and an outer sealing ring are fixedly sleeved at the upper positions of the inner and outer side walls of the friction plate, and the outer sealing ring is located on the inner sealing ring. The inner diameter of the inner sealing ring is smaller than the inner diameter of the outer sealing ring. The outer sealing ring and the inner sealing ring are both made of rubber.

[0012] Preferably, a boss is provided at the lower position of the outer wall of the groove two, and a groove three is opened at the lower position of the outer wall of the friction plate, the inner wall of the groove three is clamped with the outer wall of the boss, and the cross-sections of the boss and the groove three are both semicircular, square or V-shaped structures.

[0013] Preferably, a limiting ring is fixedly installed on the lower surface of the friction plate, and a limiting groove is provided on the lower surface of the groove 2. The inner side wall of the limiting groove and the outer side wall of the limiting ring are mutually matching conical surfaces, and the diameter of the cone formed by the conical surfaces gradually decreases from top to bottom along the axial direction of the friction disc body.

[0014] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0015] 1. The utility model provides an embedded friction disc, which protects the inner wall of the friction disc body through the inner sleeve, and uses the cooperation of the positioning groove and the positioning column to position the inner sleeve, so that the installation of the friction disc body and the inner sleeve is more convenient and flexible to use. The friction disc body and the inner sleeve are installed by screws, which improves the connection strength between the inner sleeve and the friction disc body and avoids the phenomenon of the inner sleeve falling off during use.

[0016] 2. The utility model provides an embedded friction disc. The friction plate is embedded in the friction disc body through the cooperation of groove two, groove three, limiting groove and limiting ring. The special shapes of boss and groove three are used to improve the firmness of installation of friction plate and friction disc body. The cooperation of outer sealing ring and inner sealing ring makes the connection between friction plate and groove two tighter, avoiding the existence of gap between friction disc body and friction plate, thereby preventing foreign matter from entering between the two, improving the stability of the friction disc during use, and using limiting ring and limiting groove to position the friction plate, thereby improving the embedding installation effect of the friction plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0019] Figure 3 It is a schematic diagram of the enlarged structure of point A of the utility model;

[0020] Figure 4 This is a schematic diagram of the inner sleeve structure of the utility model;

[0021] Figure 5 It is a schematic diagram of the connection structure between the friction plate and the friction disc body of the utility model;

[0022] Figure 6 This is a schematic diagram of the friction disc body structure of the utility model;

[0023] Figure 7 This is a schematic diagram of the first cross-sectional structure of the friction disc body of the utility model;

[0024] Figure 8 This is a second cross-sectional structural schematic diagram of the friction disc body of the utility model;

[0025] Fig. 9 This is a third cross-sectional structural schematic diagram of the friction disc body of the utility model;

[0026] Fig.10 This is a schematic diagram of the limit ring structure of the utility model;

[0027] Fig.11This is a schematic diagram of the first cross-sectional structure of the friction plate of the utility model;

[0028] Fig.12 This is a second cross-sectional structural schematic diagram of the friction plate of the utility model.

[0029] In the figure: 1. friction disc body; 2. inner sleeve; 3. friction plate; 4. groove one; 5. limiting ring; 6. boss; 7. outer sealing ring; 8. positioning column; 9. positioning groove; 10. groove two; 11. limiting groove; 12. groove three; 13. inner sealing ring. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0031] like Figure 1-Figure 12 As shown, an embedded friction disc comprises a friction disc body 1, wherein the upper and lower surfaces of the friction disc body 1 are friction surfaces, the upper and lower surfaces of the friction disc body 1 are both provided with grooves 10, a friction plate 3 is embedded and installed on the inner surface of the groove 10, the upper surface of the friction plate 3 and the friction surface of the friction disc body 1 are in the same plane, the friction disc body 1 is an aluminum disc, and the friction disc body 1 is a cylindrical structure, an inner sleeve 2 is embedded and installed on the inner side wall of the friction disc body 1, a groove 4 is provided on the upper surface of the friction disc body 1, and the groove 4 is located on the inner side of the groove 10, the lower surface of the groove 4 is fixed to the upper position of the inner sleeve 2 by screws, the friction disc body 1, the inner sleeve 2 and the friction plate 3 are arranged concentrically, and the friction disc body 1 and the inner side wall of the groove 10 are both provided with adhesive.

[0032] The adhesive is used to improve the firmness of the installation of the friction plate 3 and the friction disc body 1, avoid a gap between the friction plate body 1 and the friction plate 3, thereby preventing foreign matter from entering between the two, and improving the stability of the friction disc during use. The inner sleeve 2 protects the inner wall of the friction disc body 1, and the groove 4 is used to position the inner sleeve 2. The adhesive makes the installation of the friction disc body 1 and the inner sleeve 2 more convenient and flexible to use. The friction disc body 1 and the inner sleeve 2 are installed by screws to improve the connection strength between the inner sleeve 2 and the friction disc body 1, and avoid the inner sleeve 2 from falling off during use.

[0033] like Figure 2-Figure 5 As shown, the left side of the cross-section of the inner sleeve 2 is L-shaped, and the lower surface of the groove 4 is provided with three positioning grooves 9 distributed in a circular array, and three positioning posts 8 distributed in a circular array are fixedly installed on the lower surface of the top of the inner sleeve 2, and the outer wall of the positioning post 8 is plugged into the inner wall of the positioning groove 9, and the lower positions of the positioning post 8 and the positioning groove 9 are both conical structures.

[0034] The inner sleeve 2 protects the inner wall of the friction disc body 1, and the inner sleeve 2 is positioned by the cooperation of the positioning groove 9 and the positioning column 8, so that the installation of the friction disc body 1 and the inner sleeve 2 is more convenient and flexible to use. The friction disc body 1 and the inner sleeve 2 are installed by screws to improve the connection strength between the inner sleeve 2 and the friction disc body 1, and avoid the inner sleeve 2 from falling off during use.

[0035] like Figure 2 , Figure 5-Figure 12 As shown, the groove 2 10 and the left side of the cross section of the friction plate 3 are both T-shaped structures, and the inner and outer side walls of the friction plate 3 are respectively fixedly sleeved with an inner sealing ring 13 and an outer sealing ring 7, and the outer sealing ring 7 is located on the inner sealing ring 13, and the inner diameter of the inner sealing ring 13 is smaller than the inner diameter of the outer sealing ring 7, and the material of the outer sealing ring 7 and the inner sealing ring 13 are both rubber.

[0036] Through the cooperation between the outer sealing ring 7 and the inner sealing ring 13, the friction plate 3 is tightly fitted with the limiting groove 11, avoiding the existence of a gap between the friction disc body 1 and the friction plate 3, thereby preventing foreign matter from entering between the two, improving the stability of the friction disc during use, and the special shape of the groove 10 and the friction plate 3 makes the embedding installation of the friction disc body 1 and the friction plate 3 more convenient.

[0037] like Figure 2 , Figure 5-Figure 12 As shown, a boss 6 is provided at the lower position of the outer wall of the groove 2 10, and a groove 3 12 is provided at the lower position of the outer wall of the friction plate 3. The inner wall of the groove 3 12 is clamped with the outer wall of the boss 6, and the cross-sections of the boss 6 and the groove 3 12 are both semicircular, square or V-shaped structures.

[0038] The special shapes of the boss 6 and the groove 12 are utilized to improve the firmness of the installation of the friction plate 3 and the friction disc body 1.

[0039] like Figure 2 , Figure 5-Figure 12 As shown, a limiting ring 5 is fixedly installed on the lower surface of the friction plate 3, and a limiting groove 11 is provided on the lower surface of the groove 10. The inner wall of the limiting groove 11 and the outer wall of the limiting ring 5 are mutually matching conical surfaces, and the diameter of the cone formed by the conical surfaces gradually decreases from top to bottom along the axial direction of the friction disc body 1.

[0040] The friction plate 3 is positioned by using the limiting ring 5 and the limiting groove 11 to improve the embedding and installation effect of the friction plate 3 .

[0041] The working principle of the present invention is as follows: the friction plate 3 is embedded in the friction disc body 1 by the cooperation of the groove 2 10, the groove 3 12, the limiting groove 11 and the limiting ring 5. The special shapes of the boss 6 and the groove 3 12 are used to improve the firmness of the installation of the friction plate 3 and the friction disc body 1. The outer sealing ring 7 and the inner sealing ring 13 are used to make the friction plate 3 fit closely with the limiting groove 11 to avoid a gap between the friction disc body 1 and the friction plate 3, thereby preventing foreign matter from entering between the two and improving the stability of the friction disc during use. The limiting ring 5 and the limiting groove 11 are used to position the friction plate 3 to improve the embedding and installation effect of the friction plate 3. The inner sleeve 2 is used to protect the inner side wall of the friction disc body 1. The inner sleeve 2 is positioned by the cooperation of the positioning groove 9 and the positioning column 8, so that the installation of the friction disc body 1 and the inner sleeve 2 is more convenient and flexible to use. The friction disc body 1 and the inner sleeve 2 are installed by screws to improve the connection strength of the inner sleeve 2 and the friction disc body 1, and avoid the phenomenon of the inner sleeve 2 falling off during use.

[0042] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. An embedded friction disc, comprising a friction disc body (1), characterized in that: The upper and lower surfaces of the friction disc body (1) are friction surfaces. The upper and lower surfaces of the friction disc body (1) are both provided with grooves 2 (10). A friction plate (3) is embedded and installed in the inner surface of the grooves 2 (10). The upper surface of the friction plate (3) is in the same plane as the friction surface of the friction disc body (1). The friction disc body (1) is an aluminum disc and has a cylindrical structure. An inner sleeve (2) is embedded and installed in the inner wall of the friction disc body (1). The upper surface of the friction disc body (1) is provided with grooves 1 (4), and the grooves 1 (4) are located on the inner side of the grooves 2 (10). The lower surface of the grooves 1 (4) is fixed to the upper position of the inner sleeve (2) by screws. The friction disc body (1), the inner sleeve (2) and the friction plate (3) are arranged concentrically. The friction disc body (1) and the inner wall of the grooves 2 (10) are both provided with adhesive.

2. The embedded friction disc according to claim 1, characterized in that: The left side of the cross section of the inner sleeve (2) is L-shaped, and the lower surface of the groove (4) is provided with three positioning grooves (9) distributed in a ring array. The lower surface of the top of the inner sleeve (2) is fixedly installed with three positioning columns (8) distributed in a ring array. The outer wall of the positioning column (8) is plugged into the inner wall of the positioning groove (9), and the lower parts of the positioning column (8) and the positioning groove (9) are both conical structures.

3. The embedded friction disc according to claim 1, characterized in that: The left side of the cross section of the groove 2 (10) and the friction plate (3) both present a T-shaped structure.

4. The embedded friction disc according to claim 1, characterized in that: An inner sealing ring (13) and an outer sealing ring (7) are fixedly sleeved at the upper positions of the inner and outer side walls of the friction plate (3), respectively, and the outer sealing ring (7) is located on the inner sealing ring (13). The inner diameter of the inner sealing ring (13) is smaller than the inner diameter of the outer sealing ring (7). The outer sealing ring (7) and the inner sealing ring (13) are both made of rubber.

5. The embedded friction disc according to claim 1, characterized in that: A boss (6) is provided at the lower position of the outer wall of the groove 2 (10), and a groove 3 (12) is provided at the lower position of the outer wall of the friction plate (3). The inner wall of the groove 3 (12) is snap-fitted with the outer wall of the boss (6), and the cross-sections of the boss (6) and the groove 3 (12) are both semicircular, square or V-shaped.

6. The embedded friction disc according to claim 1, characterized in that: A limiting ring (5) is fixedly mounted on the lower surface of the friction plate (3), and a limiting groove (11) is provided on the lower surface of the groove 2 (10). The inner side wall of the limiting groove (11) and the outer side wall of the limiting ring (5) are conical surfaces that fit each other, and the diameter of the cone formed by the conical surfaces gradually decreases from top to bottom along the axial direction of the friction disc body (1).

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