Fixed calipers capable of reducing noise

Abstract

The utility model provides fixed calipers capable of reducing noise, which comprise an inner side shell and an outer side shell which are detachably connected, and the inner side shell and the outer side shell are matched to form an inner cavity; the pair of friction plates are relatively and movably mounted in the cavities in the inner side shell and the outer side shell respectively; the inner side shell body and the outer side shell body are connected through the multiple screw rods, and at least one screw rod is connected with a first mass block. According to the fixed calipers capable of reducing noise, the first mass block is connected to the at least one screw rod connecting the inner side shell and the outer side shell, the mass of the corresponding screw rod is increased through the first mass block, the structural shape of the screw rod is changed, and therefore the inherent frequency of the corresponding screw rod is changed, resonance with other components is avoided, and noise is reduced. And coupling noise generated during braking of the fixed calipers is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the field of disc brakes, in particular to a fixed caliper capable of reducing noise. Background Art

[0002] When a car disc brake is braking, since each part has a different natural frequency, when the frequencies of the interconnected parts are close, resonance will occur, resulting in braking coupling noise.

[0003] Therefore, how to reduce the coupling noise generated by disc brakes during braking becomes an urgent problem to be solved. Utility Model Content

[0004] In view of this, the utility model provides a noise-reducing fixed caliper, which can effectively reduce the coupling noise generated during braking.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] The noise-reducing fixed caliper according to an embodiment of the utility model comprises:

[0007] An inner shell and an outer shell that are detachably connected, wherein the inner shell and the outer shell cooperate to form an internal chamber;

[0008] A pair of friction plates, wherein the pair of friction plates are relatively movably mounted in the chamber;

[0009] A plurality of screw rods, the inner shell and the outer shell are connected by the plurality of screw rods, wherein at least one of the screw rods is connected to a first mass block.

[0010] Furthermore, a plurality of connection holes are correspondingly provided on the side edges of the inner shell and the outer shell.

[0011] The plurality of screw rods respectively pass through the plurality of corresponding connection holes to connect the inner shell and the outer shell.

[0012] Furthermore, a plurality of the connection holes are detachably provided with connection sleeves.

[0013] Furthermore, the connecting sleeve is a rubber part.

[0014] Furthermore, the screw rod includes a rod body and a connecting portion connected to one end of the rod body, the rod body is disposed in the corresponding connecting hole, and the connecting portion is connected to the first mass block.

[0015] Furthermore, a threaded surface is formed on the side wall of the connecting portion, a screw hole is provided in the middle of the first mass block, and the first mass block is screwed to the connecting portion by cooperating with the threaded surface through the screw hole.

[0016] Furthermore, a pair of second mass blocks are detachably mounted on the pair of friction plates.

[0017] Furthermore, a pair of mounting seats are provided on the top of each friction plate, and a pair of the second mass blocks are detachably mounted on the pair of mounting seats respectively.

[0018] Furthermore, third mass blocks are detachably connected to both sides of the bottom of the inner shell and the outer shell.

[0019] Furthermore, the first mass block, the second mass block and the third mass block are iron parts or iron-containing alloy parts, and the mass of the first mass block, the second mass block and the third mass block is 20-60g.

[0020] The above technical solution of the utility model has at least one of the following beneficial effects:

[0021] According to the embodiment of the utility model, the noise-reducing fixed caliper is connected to a first mass block on at least one screw connecting the inner shell and the outer shell, so as to increase the mass of the corresponding screw and change the structural shape of the screw through the first mass block, thereby changing the natural frequency of the corresponding screw, avoiding resonance with other components, and effectively reducing the coupling noise generated by the fixed caliper during braking. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional structural diagram of a noise-reducing fixed caliper according to an embodiment of the utility model;

[0023] Figure 2 It is a schematic diagram of the exploded structure of the noise-reducing fixed caliper according to an embodiment of the utility model;

[0024] Figure 3 This is a schematic structural diagram of a friction plate of a fixed caliper capable of reducing noise according to an embodiment of the utility model;

[0025] Figure 4 This is a schematic structural diagram of the inner shell of a noise-reducing fixed caliper according to an embodiment of the utility model;

[0026] Figure 5 This is a schematic structural diagram of an oil circuit plug of a fixed caliper capable of reducing noise according to an embodiment of the utility model.

[0027] Figure numerals: 10. inner housing; 20. outer housing; 30. friction plate; 31. mounting seat; 40. screw rod; 50. first mass block; 60. connecting hole; 70. second mass block; 80. third mass block; 90. oil path plug; 91. fourth mass block. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0029] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. The words "connect" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship also changes accordingly.

[0030] The following first describes in detail the noise-reducing fixed caliper according to an embodiment of the utility model in conjunction with the accompanying drawings.

[0031] According to the noise-reducing fixed caliper of the embodiment of the utility model, Figure 1 As shown, it may include: an inner housing 10 and an outer housing 20 that are detachably connected, a pair of friction plates 30 and a plurality of screws 40 .

[0032] The inner shell 10 and the outer shell 20 cooperate to form an internal chamber.

[0033] The pair of friction plates 30 are installed in cavities inside the inner housing 10 and the outer housing 20 so as to be relatively movably disposed.

[0034] The inner housing 10 and the outer housing 20 are connected via a plurality of screw rods 40 , wherein a first mass block 50 is connected to at least one screw rod 40 .

[0035] That is to say, according to the noise-reducing fixed caliper of the utility model, a detachably connected inner shell 10 and outer shell 20 are provided, a pair of relatively movable friction plates 30 are provided in the internal chamber formed by the inner shell 10 and the outer shell 20 for braking the brake disc, and the inner shell 10 and the outer shell 20 are detachably connected through a plurality of screws 40. A first mass block 50 is connected to at least one screw 40, and the mass of the corresponding screw 40 is increased and the structural shape of the screw 40 is changed by the first mass block 50, thereby changing the natural frequency of the corresponding screw 40, avoiding resonance with other components, and effectively reducing the coupling noise generated when the fixed caliper is braked.

[0036] The number of screws 40 connected to the first mass block 50 is selected according to the specific structure and quality of the caliper, so as to maximize the noise reduction effect.

[0037] In some embodiments, Figure 1 , Figure 2 As shown, a plurality of connection holes 60 are correspondingly provided on the side edges of the inner shell 10 and the outer shell 20 .

[0038] The plurality of screw rods 40 respectively pass through the plurality of corresponding connection holes 60 to connect the inner housing 10 and the outer housing 20 .

[0039] That is to say, by correspondingly arranging a plurality of connection holes 60 on the side edges of the inner shell 10 and the outer shell 20 for passing the screw rods 40 , a convenient and detachable connection between the inner shell 10 and the outer shell 20 is achieved, and the structure is simple and reliable.

[0040] In some embodiments, a plurality of connection holes 60 are detachably provided with connection sleeves (not shown).

[0041] That is to say, by providing a connecting sleeve in the connecting hole 60 to transition the connection between the screw rod 40 and the connecting hole 60 , the friction loss of the screw rod 40 can be reduced.

[0042] In some embodiments, the connecting sleeve is a rubber member.

[0043] Therefore, the connecting sleeve of the rubber component can further eliminate the vibration noise generated by the screw rod 40 due to braking.

[0044] In some embodiments, Figure 2 As shown, the screw rod 40 includes a rod body and a connecting portion connected to one end of the rod body, the rod body is inserted into the corresponding connecting hole 60, and the connecting portion is connected to the first mass block 50.

[0045] Specifically, the rod of the screw rod 40 is inserted into the connecting hole 60 to connect the inner shell 10 and the outer shell 20, and the connecting portion at one end of the connecting rod is exposed from the connecting hole 60 for connecting the first mass block 50, thereby realizing a convenient and reliable connection between the first mass block 50 and the screw rod 40.

[0046] In some embodiments, a threaded surface is formed on the side wall of the connection portion, a screw hole is provided in the middle of the first mass block 50, and the first mass block 50 is screwed to the connection portion through the screw hole and the threaded surface.

[0047] The connection portion between the first mass block 50 and the screw rod 40 is arranged to be connected in a threaded manner, so as to facilitate the detachable installation of the first mass block 50 and reduce the operation intensity.

[0048] In some embodiments, Figure 2 As shown, a pair of second mass blocks 70 are detachably mounted on a pair of friction plates 30 .

[0049] That is to say, by installing a second mass block 70 on a pair of friction plates 30, the mass of the friction plates 30 is increased and the structural shape of the friction plates 30 is changed, thereby changing the natural frequency of the corresponding friction plates 30, avoiding resonance with other components, and further reducing the noise generated during caliper braking.

[0050] In some embodiments, Figure 3 As shown, a pair of mounting seats 31 are provided on the top of each friction plate 30 , and a pair of second mass blocks 70 are detachably mounted on the pair of mounting seats 31 .

[0051] Therefore, the second mass block 70 is easy to install and convenient to disassemble and maintain.

[0052] In some embodiments, third mass blocks 80 are detachably connected to both sides of the bottom of the inner shell 10 and the outer shell 20 .

[0053] As an example, Figure 4 As shown, the third mass blocks 80 are detachably connected to the two ends of the bottom of the inner shell 10, so as to increase the mass of the inner shell 10 and change the structural shape of the inner shell 10, thereby changing the natural frequency of the inner shell 10 as a whole, thereby avoiding resonance with other components. The outer shell 20 is the same as the above, and no further details are given here.

[0054] Preferably, the first mass block 50, the second mass block 70 and the third mass block 80 are iron parts or iron-containing alloy parts, and the mass of the first mass block 50, the second mass block 70 and the third mass block 80 is 20-60g.

[0055] The mass block made of the above materials has a stable structure and low manufacturing cost.

[0056] In addition, if Figure 1 As shown, the noise-reducing fixed caliper according to the embodiment of the utility model is also provided with an oil inlet on its inner housing 10, and an oil plug 90 is installed at the inlet of the oil inlet. Figure 5 As shown, a fourth mass block 91 is also connected to the end of the oil path plug 90, thereby changing its natural frequency and further reducing the overall braking noise of the caliper.

[0057] The above is a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A fixed caliper capable of reducing noise, characterized in that: include: An inner shell and an outer shell that are detachably connected, wherein the inner shell and the outer shell cooperate to form an internal chamber; A pair of friction plates, wherein the pair of friction plates are relatively movably mounted in the chamber; A plurality of screw rods, the inner shell and the outer shell are connected by the plurality of screw rods, wherein at least one of the screw rods is connected to a first mass block.

2. The noise-reducing fixed caliper according to claim 1, characterized in that: The side edges of the inner shell and the outer shell are correspondingly provided with a plurality of connection holes. The plurality of screw rods respectively pass through the plurality of corresponding connection holes to connect the inner shell and the outer shell.

3. The noise-reducing fixed caliper according to claim 2, characterized in that: A plurality of connecting holes are detachably provided with connecting sleeves.

4. The noise-reducing fixed caliper according to claim 3, characterized in that: The connecting sleeve is a rubber part.

5. The noise-reducing fixed caliper according to claim 2, characterized in that: The screw rod comprises a rod body and a connecting portion connected to one end of the rod body, the rod body is disposed in the corresponding connecting hole, and the connecting portion is connected to the first mass block.

6. The noise-reducing fixed caliper according to claim 5, characterized in that: A threaded surface is formed on the side wall of the connecting portion, a screw hole is provided in the middle of the first mass block, and the first mass block is screwed to the connecting portion by cooperating with the threaded surface through the screw hole.

7. The noise-reducing fixed caliper according to claim 2, characterized in that: A pair of second mass blocks are detachably mounted on the pair of friction plates.

8. The noise-reducing fixed caliper according to claim 7, characterized in that: A pair of mounting seats is provided on the top of each friction plate, and a pair of the second mass blocks are detachably mounted on the pair of mounting seats respectively.

9. The noise-reducing fixed caliper according to claim 7, characterized in that: The third mass blocks are detachably connected to both sides of the bottom of the inner shell and the outer shell.

10. The noise-reducing fixed caliper according to claim 7, characterized in that: The first mass block, the second mass block and the third mass block are iron parts or iron-containing alloy parts, and the masses of the first mass block, the second mass block and the third mass block are 20-60g.

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