Calipers with centrally-arranged positioning pin

Abstract

The utility model provides a pair of centrally-mounted calipers for a positioning pin, and relates to the technical field of brakes. The pair of calipers with the centrally-arranged positioning pins comprises a calipers body, an elastic piece, a friction plate and a plurality of positioning shafts, the number of the friction plates is two, and the two friction plates are oppositely arranged and both located in the caliper body. Mounting structures are arranged in the middles of the two side edges of the two friction plates, a plurality of mounting holes are formed in the middle of the caliper body and communicate with the mounting structures in a one-to-one correspondence mode, the positioning shafts correspond to the mounting holes in a one-to-one correspondence mode, and the positioning shafts penetrate through the mounting holes and stretch into the mounting structures. The two ends of the elastic piece are connected with the two friction plates respectively. According to the calipers with the centrally-arranged positioning pins, the technical problems that in the prior art, brake calipers have noise and are large in dragging are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of brakes, in particular to a positioning pin middle-mounted caliper. Background Art

[0002] Brakes came into being along with automobiles and have developed with the development of the automobile industry. From the most primitive brake shoes to drum brakes and then to the current disc brakes, the development of brakes also reflects the development of automobiles from the side. With the progress of human civilization, the increase in the number of automobiles, and the improvement of people's environmental protection awareness, the requirements for braking comfort are getting higher and higher, and more attention is paid to the energy consumption during braking. In this process, more and more indicators have been put forward. Among them, the drag torque and noise during braking are both important indicators. Drag refers to the frictional torque of the brake caliper on the brake disc after braking.

[0003] Refer to Figure 1 , the existing brake caliper includes two positioning shafts 400 and two relatively arranged friction plates 300. Two connecting protrusions are provided at the top of each of the two friction plates 300, and the two connecting protrusions are arranged at intervals along the length direction of the friction plate 300; the two positioning shafts 400 respectively pass through the connecting protrusions opposite to the two friction plates 300, and the two friction plates 300 can slide along the axial direction of the positioning shaft 400 in the direction of approaching or separating from each other under the drive of a driving mechanism; in addition, the brake caliper further includes an elastic member 200, and both ends of the elastic member 200 are respectively connected to the tops of the two friction plates 300 to drive the two friction plates 300 to reset. This kind of structure has the problems that the space of the brake caliper for accommodating counterweights is small, resulting in insufficient noise improvement effect; and, in this kind of structure, the arm of force between the acting point of the elastic member 200 and the fulcrum of the friction plate 300 is long, causing more deflection of the friction plate 300 and increasing drag. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a positioning pin middle-mounted caliper to alleviate the technical problems of noise and large drag existing in the existing brake calipers.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is as follows:

[0006] In a first aspect, the positioning pin middle-mounted caliper provided by the utility model includes a caliper body, an elastic member, friction plates, and a plurality of positioning shafts;

[0007] There are two of the friction plates, and the two friction plates are relatively arranged and are both located inside the caliper body;

[0008] Installation structures are provided in the middle of both side edges of the two friction plates. Multiple installation holes are provided in the middle of the caliper body. The multiple installation holes communicate with the multiple installation structures in a one-to-one correspondence. The multiple positioning shafts correspond to the multiple installation holes one by one, and the positioning shaft passes through the installation hole and extends into the installation structure;

[0009] Both ends of the elastic member are respectively connected to the two friction plates.

[0010] Furthermore, the installation structure is set as a groove that is recessed from the side wall of the friction plate towards the middle of the friction plate.

[0011] Furthermore, the end face of the positioning shaft is lower than the inner end face of the friction plate.

[0012] Furthermore, the elastic member is connected to the middle of the friction plate.

[0013] Furthermore, an avoidance groove is provided at the top of the friction plate, and the elastic member is connected to the bottom wall of the avoidance groove.

[0014] Furthermore, on the same friction plate, the distances between the connection points of the elastic member and the friction plate and the axes of the two positioning shafts are equal.

[0015] Furthermore, the elastic member is connected to the caliper body.

[0016] Furthermore, the elastic member includes a fixed section and an elastic connection section. The fixed section is connected to the middle of the elastic connection section, and both ends of the elastic connection section are respectively connected to the two friction plates. The fixed section is installed on the caliper body.

[0017] Furthermore, an observation port and two connecting beams are provided at the top of the caliper body. The two connecting beams are arranged at intervals, and both ends of the connecting beam are respectively installed on both sides of the observation port;

[0018] Both ends of the fixed section are respectively installed on the two connecting beams.

[0019] Furthermore, an observation port and a single connecting beam are provided at the top of the caliper body. Both ends of the connecting beam are respectively installed on both sides of the observation port;

[0020] Two elastic members are provided. The two elastic members are located on both sides of the connecting beam, and one end of the fixed section of the elastic member is installed on the connecting beam, and the other end is installed on the side wall of the observation port.

[0021] Furthermore, an observation port and multiple connecting beams are provided at the top of the caliper body, and both ends of the connecting beam are respectively installed on both sides of the observation port;

[0022] A plurality of elastic members are provided, and the plurality of elastic members are arranged at intervals, and both ends of the fixed section of each elastic member are mounted on the connecting beam.

[0023] Based on the above technical solutions, the technical effects that the present utility model can achieve are analyzed as follows:

[0024] The positioning pin middle-mounted caliper provided by the present utility model includes a caliper body, elastic members, friction plates and a plurality of positioning shafts; two friction plates are provided, and the two friction plates are arranged oppositely and are both located inside the caliper body; mounting structures are provided in the middle of both sides of the two friction plates, a plurality of mounting holes are provided in the middle of the caliper body, the plurality of mounting holes communicate with the plurality of mounting structures in one-to-one correspondence, the plurality of positioning shafts correspond to the plurality of mounting holes in one-to-one correspondence, and the positioning shafts pass through the mounting holes and extend into the mounting structures; both ends of the elastic members are respectively connected to the two friction plates. The caliper body is used to accommodate the friction plates and install and protect the friction plates. The positioning shafts pass through the mounting holes of the caliper body and then extend into the mounting structures. The mounting holes and the mounting structures are used to limit the positioning shafts, so as to realize the installation of the friction plates in the caliper body; and because the mounting structures are located in the middle of both sides of the friction plates, the distance between the support points of the positioning shafts on the friction plates and the acting points of the elastic members on the friction plates is reduced, thereby reducing the force arms of the two to reduce the deflection of the friction plates and achieve the purpose of reducing drag. In addition, because the mounting structures are located in the middle of both sides of the friction plates, counterweight blocks can be designed on the top of the friction plates to increase the available mass of the counterweight blocks, thereby improving the NVH (Noise, Vibration, Harshness) effect. Both ends of the elastic members are respectively connected to the two friction plates to realize the resetability of the two friction plates. Description of the Drawings

[0025] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0026] Figure 1 It is a torque schematic diagram of a brake caliper in the background art;

[0027] Figure 2 It is a torque schematic diagram of the positioning pin middle-mounted caliper provided by the embodiment of the present utility model;

[0028] Figure 3 It is a structural schematic diagram of the positioning pin middle-mounted caliper provided by the embodiment of the present utility model Figure 1 ;

[0029] Figure 4 Structural schematic of the positioning pin center - mounted caliper provided by the embodiment of the present utility model Figure 2 ;

[0030] Figure 5 Structural schematic of the positioning pin center - mounted caliper provided by the embodiment of the present utility model Figure 3 (The caliper body is omitted);

[0031] Figure 6 Cross - sectional view of the positioning pin center - mounted caliper provided by the embodiment of the present utility model;

[0032] Figure 7 Structural schematic of the caliper body in the positioning pin center - mounted caliper provided by the embodiment of the present utility model Figure 1 ;

[0033] Figure 8 Structural schematic of the caliper body in the positioning pin center - mounted caliper provided by the embodiment of the present utility model Figure 2 。

[0034] Icon:

[0035] 100 - Caliper body; 110 - Mounting hole; 120 - Observation port; 130 - Connecting beam;

[0036] 200 - Elastic member; 210 - Fixed section; 220 - Elastic connecting section;

[0037] 300 - Friction plate; 310 - Mounting structure; 320 - Avoidance groove;

[0038] 400 - Positioning shaft. Specific embodiments

[0039] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present utility model.

[0041] It should be noted that like reference numerals and letters refer to like items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0042] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0043] In addition, the terms "horizontal", "vertical", "hanging", etc. do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0044] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0045] The following will describe in detail some embodiments of the present utility model with reference to the drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0046] Embodiment 1

[0047] See Figure 1, the existing brake caliper includes two positioning shafts 400 and two relatively arranged friction plates 300. Two connecting protrusions are provided at the top of each of the two friction plates 300, and the two connecting protrusions are arranged at intervals along the length direction of the friction plate 300; the two positioning shafts 400 respectively pass through the connecting protrusions opposite to the two friction plates 300, and the two friction plates 300 can slide along the axial direction of the positioning shaft 400 towards each other or away from each other under the drive of the driving mechanism; in addition, the brake caliper further includes an elastic member 200, and both ends of the elastic member 200 are respectively connected to the tops of the two friction plates 300 to drive the two friction plates 300 to reset. This structure has the problem that the space in the brake caliper that can be used to accommodate the counterweight block is small, resulting in insufficient effect of improving noise; moreover, this structure has a long lever arm between the acting point of the elastic member 200 and the fulcrum of the friction plate 300, causing more deflection of the friction plate 300 and increasing drag.

[0048] In view of this, the positioning pin center-mounted caliper provided by the embodiment of the present invention includes a caliper body 100, an elastic member 200, a friction plate 300, and a plurality of positioning shafts 400; there are two friction plates 300, and the two friction plates 300 are relatively arranged and are both located inside the caliper body 100; mounting structures 310 are provided in the middle of both sides of the two friction plates 300, a plurality of mounting holes 110 are provided in the middle of the caliper body 100, the plurality of mounting holes 110 communicate with the plurality of mounting structures 310 in one-to-one correspondence, the plurality of positioning shafts 400 correspond to the plurality of mounting holes 110 in one-to-one correspondence, and the positioning shaft 400 passes through the mounting hole 110 and extends into the mounting structure 310; both ends of the elastic member 200 are respectively connected to the two friction plates 300. The caliper body 100 is used to accommodate the friction plate 300 and install and protect the friction plate 300.

[0049] Specifically, referring to Figure 1 , L1 is the distance between the spring acting point and the fulcrum of the friction plate 300 in the prior art, referring to Figure 2 , L2 is the distance between the support point of the positioning shaft 400 on the friction plate 300 and the acting point of the elastic member 200 on the friction plate 300 in this embodiment, and L2 is much smaller than L1, achieving the purpose of reducing drag. Preferably, the positioning shaft 400 is set as a pin shaft; in this embodiment, referring to Figures 3 to 7 , there are pin shafts in both of the two mounting structures 310 on each friction plate 300, and the two pin shafts in the two relatively arranged mounting structures 310 of the two friction plates 300 are not connected to avoid affecting the operation of the positioning pin center-mounted caliper. It should be noted that the middle part of the friction plate 300 refers to the middle part of the friction plate 300 along the height direction of the friction plate 300.

[0050] The positioning shaft 400 passes through the mounting hole 110 of the caliper body 100 and extends into the mounting structure 310. The mounting hole 110 and the mounting structure 310 are used to limit the positioning shaft 400, so as to install the friction plate 300 in the caliper body 100. Moreover, since the mounting structure 310 is located in the middle of both sides of the friction plate 300, the distance between the supporting point of the positioning shaft 400 on the friction plate 300 and the acting point of the elastic member 200 on the friction plate 300 is reduced, thereby reducing the force arms of both to reduce the deflection of the friction plate 300 and achieve the purpose of reducing drag. In addition, since the mounting structure 310 is located in the middle of both sides of the friction plate 300, the top of the friction plate 300 can be used to design a counterweight block, increasing the available mass of the counterweight block, thereby improving the NVH (Noise, Vibration, Harshness) effect. The two ends of the elastic member 200 are respectively connected to the two friction plates 300, enabling the two friction plates 300 to be reset.

[0051] The shape and structure of the centering caliper of the positioning pin will be described in detail as follows:

[0052] In an alternative embodiment of the present invention, the mounting structure 310 is provided as a groove that is recessed from the side wall of the friction plate 300 towards the middle of the friction plate 300.

[0053] Specifically, the axes of the two mounting structures 310 on the same friction plate 300 are located in the same horizontal plane.

[0054] See Figure 5 , the mounting structure 310 is provided as a groove, so that the mounting structure 310 is located at the edge of the side wall of the friction plate 300, further expanding the mounting area of the counterweight block and increasing the available mass of the counterweight block, thereby improving the NVH (Noise, Vibration, Harshness) effect.

[0055] As another embodiment, the mounting structure 310 is provided as a through hole that penetrates along the thickness direction of the friction plate 300.

[0056] In an alternative embodiment of the present invention, the end face of the positioning shaft 400 is lower than the inner end face of the friction plate 300.

[0057] Specifically, the inner end face of the friction plate 300 refers to the end faces of the two friction plates 300 facing each other. Correspondingly, the other end face of the friction plate 300 is the outer end face.

[0058] The end face of the positioning shaft 400 being lower than the inner end face of the friction plate 300 can prevent the positioning shaft 400 from protruding beyond the inner end face of the friction plate 300 when the centering caliper of the positioning pin is in the initial state, which may affect the installation of the centering caliper of the positioning pin.

[0059] In an alternative embodiment of the present utility model, refer to Figure 5 , the elastic member 200 is connected to the middle of the friction plate 300.

[0060] Specifically, the elastic member 200 is arranged as a spring, and two movable ends of the spring are connected to two friction plates 300.

[0061] The elastic member 200 is connected to the middle of the friction plate 300, further reducing the distance between the support point of the positioning shaft 400 on the friction plate 300 and the acting point of the elastic member 200 on the friction plate 300, thereby reducing the force arm of the two to reduce the deflection of the friction plate 300 and achieving the purpose of reducing drag.

[0062] In an alternative embodiment of the present utility model, an avoidance groove 320 is provided at the top of the friction plate 300, and the elastic member 200 is connected to the bottom wall of the avoidance groove 320.

[0063] Specifically, the avoidance groove 320 is recessed downward from the top of the friction plate 300.

[0064] The elastic member 200 is connected to the bottom wall of the avoidance groove 320, realizing the connection between the elastic member 200 and the middle of the friction plate 300.

[0065] In an alternative embodiment of the present utility model, on the same friction plate 300, the distances between the connection points of the elastic member 200 and the friction plate 300 to the axes of the two positioning shafts 400 are equal.

[0066] Specifically, the elastic member 200 is snap - connected to the friction plate 300; of course, if the elastic member 200 and the friction plate 300 adopt other connection methods, such as bonding, etc., they should also be within the protection scope of the embodiments of the present utility model.

[0067] The distances between the elastic member 200 and the axes of the two positioning shafts 400 are equal, realizing that the connection point of the elastic member 200 and the friction plate 300 is located in the middle of the friction plate 300, avoiding the offset when the friction plate 300 resets.

[0068] In an alternative embodiment of the present utility model, the elastic member 200 is connected to the caliper body 100.

[0069] Specifically, the elastic member 200 is installed on the top of the caliper body 100.

[0070] The caliper body 100 provides a supporting effect on the elastic member 200.

[0071] In an alternative solution of the embodiment of the present utility model, the elastic member 200 includes a fixed section 210 and an elastic connection section 220. The fixed section 210 is connected to the middle of the elastic connection section 220, and both ends of the elastic connection section 220 are respectively connected to two friction plates 300. The fixed section 210 is installed on the caliper body 100.

[0072] Specifically, the fixed section 210 and the elastic connection section 220 are cross-shaped.

[0073] The fixed section 210 is used for supporting and fixing, and the elastic connection section 220 is used for applying elastic force.

[0074] As an implementation manner, referring to Figure 7 , an observation port 120 and two connection beams 130 are provided at the top of the caliper body 100. The two connection beams 130 are arranged at intervals, and both ends of the connection beam 130 are respectively installed on both sides of the observation port 120; both ends of the fixed section 210 are respectively installed on the two connection beams 130.

[0075] Specifically, the observation port 120 is set to be square, and the two connection beams 130 are arranged at intervals along the length direction of the friction plate 300.

[0076] The connection beam 130 realizes the supporting and fixing function of the elastic member 200.

[0077] As another implementation manner, referring to Figure 8 , an observation port 120 and a single connection beam 130 are provided at the top of the caliper body 100. Both ends of the connection beam 130 are respectively installed on both sides of the observation port 120. Two elastic members 200 are provided. The two elastic members 200 are located on both sides of the connection beam 130, and one end of the fixed section 210 of the elastic member is installed on the connection beam 130, and the other end is installed on the side wall of the observation port 120.

[0078] Specifically, two elastic members 200 are provided. The distance between the axis of the first elastic member 200 and the axis of the adjacent positioning shaft 400 is equal to the distance between the axis of the second elastic member 200 and the axis of the adjacent positioning shaft 400. It is ensured that the connection points of the elastic members 200 and the friction plates 300 are located on both sides of the friction plates 300, preventing the friction plates 300 from shifting during reset.

[0079] As another implementation manner, an observation port 120 and multiple connection beams 130 are provided at the top of the caliper body 100, and both ends of the connection beam 130 are respectively installed on both sides of the observation port 120; multiple elastic members 200 are provided. The multiple elastic members 200 are arranged at intervals, and both ends of the fixed section 210 of each elastic member 200 are installed on the connection beam 130.

[0080] Specifically, a plurality of elastic members 200 are arranged at intervals along the length direction of the friction plate 300, and the intervals between the plurality of elastic members 200 are equal. For the two elastic members 200 adjacent to the two positioning shafts 400, the distances from the connection points of the two elastic members 200 and the friction plate 300 to the axes of the two positioning shafts 400 are equal. In this embodiment, two elastic members 200 are provided, and the distance between the axis of the first elastic member 200 and the adjacent positioning shaft 400 is equal to the distance between the axis of the second elastic member 200 and the adjacent positioning shaft 400. This enables the connection points of the elastic members 200 and the friction plate 300 to be located on both sides of the friction plate 300, preventing the friction plate 300 from shifting during resetting.

[0081] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A positioning pin-centered caliper, characterized in that, Including: A caliper body (100), an elastic member (200), friction plates (300), and a plurality of positioning shafts (400); There are two of the friction plates (300), and the two friction plates (300) are arranged oppositely and are both located inside the caliper body (100); Installation structures (310) are provided in the middle of both sides of the two friction plates (300), a plurality of installation holes (110) are provided in the middle of the caliper body (100), the plurality of installation holes (110) communicate with the plurality of installation structures (310) in one-to-one correspondence, the plurality of positioning shafts (400) correspond to the plurality of installation holes (110) in one-to-one correspondence, and the positioning shafts (400) pass through the installation holes (110) and extend into the installation structures (310); Both ends of the elastic member (200) are respectively connected to the two friction plates (300).

2. The centering caliper with a positioning pin according to claim 1, wherein, The installation structure (310) is provided as a groove that is recessed from the side wall of the friction plate (300) towards the middle of the friction plate (300).

3. The centering caliper with a positioning pin according to claim 1, characterized in that, The end face of the positioning shaft (400) is lower than the inner end face of the friction plate (300).

4. The centering caliper with a locating pin according to claim 1, wherein, The elastic member (200) is connected to the middle of the friction plate (300).

5. The centering caliper with a locating pin according to claim 4, characterized in that, An avoidance groove (320) is provided at the top of the friction plate (300), and the elastic member (200) is connected to the bottom wall of the avoidance groove (320).

6. The centering caliper with a locating pin according to claim 1, characterized in that, On the same friction plate (300), the distances between the connection points of the elastic member (200) and the friction plate (300) to the axes of the two positioning shafts (400) are equal.

7. The centering caliper with a positioning pin according to claim 1, wherein, The elastic member (200) is connected to the caliper body (100).

8. The centering caliper with a positioning pin according to claim 1, characterized in that, The elastic member (200) includes a fixed section (210) and an elastic connection section (220), the fixed section (210) is connected to the middle of the elastic connection section (220), and both ends of the elastic connection section (220) are respectively connected to the two friction plates (300), and the fixed section (210) is installed on the caliper body (100).

9. The centering caliper with a locating pin according to claim 8, characterized in that, An observation port (120) and two connecting beams (130) are provided at the top of the caliper body (100), the two connecting beams (130) are arranged at intervals, and both ends of the connecting beam (130) are respectively installed on both sides of the observation port (120); Both ends of the fixed section (210) are respectively installed on the two connecting beams (130).

10. The centering caliper with a positioning pin according to claim 8, characterized in that, An observation port (120) and a single connecting beam (130) are provided at the top of the caliper body (100), and both ends of the connecting beam (130) are respectively installed on both sides of the observation port (120); There are two of the elastic members (200), the two elastic members (200) are located on both sides of the connecting beam (130), and one end of the fixed section (210) of the elastic member is installed on the connecting beam (130), and the other end is installed on the side wall of the observation port (120).

11. The centering caliper with a positioning pin according to claim 8, characterized in that, The top of the caliper body (100) is provided with an observation port (120) and a plurality of connecting beams (130), and both ends of the connecting beam (130) are respectively installed on both sides of the observation port (120); A plurality of elastic members (200) are provided, the plurality of elastic members (200) are arranged at intervals, and both ends of the fixed section (210) of each elastic member (200) are installed on the connecting beam (130).

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