Dry-type fixed brake caliper body and fixed caliper

Abstract

The invention relates to the field of brakes, and discloses a dry-type fixed brake caliper body and a fixed caliper, the dry-type fixed brake caliper body comprises a brake port (1) in the middle, the caliper body part on the upper side of the brake port (1) is an upper caliper body (2), and the caliper body part on the lower side of the brake port (1) is a lower caliper body (3); a first cavity (4) extending downwards is formed in the upper end face of the upper clamp body (2), a top cover (5) fixedly covers the outer portion of the first cavity (4), a second cavity (6) extending upwards is formed in the lower end face of the upper clamp body (2), the first cavity (4) is communicated with the second cavity (6), the guide cavity (7) is communicated with the first cavity, the depth direction of the first cavity (4) and the depth direction of the second cavity are both the axial direction, and the guide cavity (7) is communicated with the guide cavity (7). And the guide cavity is axially arranged. The design of the caliper body points out the direction for the research and development of electronic fixed calipers, provides a reliable caliper body structure and an excellent spatial layout, and can achieve the functions of the fixed calipers.

Description

Technical Field

[0001] The present invention relates to the field of fixed calipers, and mainly relates to a dry fixed brake caliper body and a fixed caliper. Background Art

[0002] Traditional fixed brakes generally use hydraulics for driving braking. They have the advantages of reliable braking, neat appearance, and small overall size, and are generally applied to high-end vehicles. With the popularization of electrification, it is an inevitable trend for vehicles to adopt electronic control. In the field of parking braking, there have been many technological breakthroughs and attempts in electronic braking. For example, the applicant's prior patent CN214325076U applied for an electronic parking brake control system for motor vehicles. However, this kind of parking brake and the fixed brake belong to two sets of solutions and cannot be replaced and translated. There is also no electronic drive method for fixed brakes in the existing technical solutions.

[0003] There is no existing technology related to the structure of the body of an electronic fixed caliper. Therefore, designing a structure that can meet the requirements of an electronic fixed caliper is a technical problem that urgently needs to be solved. Summary of the Invention

[0004] The present invention aims at the deficiencies in the prior art and provides a dry fixed brake caliper body and a fixed caliper.

[0005] A dry fixed brake caliper body includes a braking port in the middle position. The caliper part above the braking port is the upper caliper, and the caliper part below the braking port is the lower caliper; a first chamber extending downward is provided on the upper end surface of the upper caliper, and a top cover is fixedly covered outside the first chamber. A second chamber extending upward is provided on the lower end surface of the upper caliper. The first chamber and the second chamber are connected. It further includes a guiding chamber, and the guiding chamber is connected to the first chamber. The depth directions of the first chamber and the second chamber are both in the axial direction, and the guiding chamber is axially arranged.

[0006] Preferably, the first chamber includes a reduction chamber for installing a reduction mechanism in the middle position and transmission chambers on both sides of the reduction chamber. The transmission chamber and the guiding chamber are coaxially arranged and communicate with each other. A first hole is provided at the bottom of the reduction chamber, and the first hole is connected to the second chamber. The second chamber is used for installing a driving motor.

[0007] Preferably, an installation groove is provided on the bottom surface of the reduction chamber. The cross-sectional shape of the installation groove is non-circular. The installation groove is used for installing the mounting frame of the reduction mechanism, and the first hole is located on the bottom surface of the installation groove.

[0008] Preferably, the transmission chamber includes a first bearing installation groove. The inner side surface of the top cover is provided with a second bearing installation groove. The first bearing installation groove and the second bearing installation groove form a complete bearing groove.

[0009] Preferably, a guide groove for guiding the drive shaft is provided on the bottom surface of the top cover in the second bearing installation groove, and the guide groove, the transmission cavity and the guide cavity are coaxially arranged.

[0010] Preferably, a fixed seat is provided on the upper jaw body near the jaw side, and a wiring port is installed on the side surface of the jaw side of the upper jaw body.

[0011] Preferably, the lower jaw body and the upper jaw body are of an integrally formed structure, and the structure of the lower jaw body is the same as that of the upper jaw body.

[0012] The brake caliper adopts the above-mentioned dry fixed brake caliper body, and further includes a drive motor, a planetary reduction mechanism and an output mechanism. The drive motor is installed in the second chamber and the output shaft is connected to the planetary reduction mechanism in the first chamber. The output unit of the planetary reduction mechanism is a toothed ring, and the output mechanism is an output gear meshing with the toothed ring and an output shaft threadedly matched with the output gear coaxially. The lower end of the output shaft is inserted into the guide cavity, and a guide sleeve is arranged in the guide cavity. The guide sleeve is slidably connected with the output shaft. The rotation of the toothed ring drives the output gear to rotate, and the rotation of the output gear drives the output shaft to move axially.

[0013] Compared with the prior art, the present solution has the following beneficial effects: The present solution creatively adopts the solution of opening holes up and down and guiding on both sides, so that the overall size is basically the same as that of the fixed caliper in the axial direction, and the appearance cleanliness is high. All transmission components can be hidden in the cavity, providing a basis and possibility for the electrification development of the fixed caliper. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the overall structure of the device.

[0015] Figure 2 It is Figure 1 the top view of

[0016] Figure 3 It is Figure 2 the sectional view of

[0017] Figure 4 It is a schematic diagram equipped with a transmission structure.

[0018] The technical names of the reference numerals in the drawings are: 1 - brake port, 2 - upper jaw body, 3 - lower jaw body, 4 - first chamber, 5 - top cover, 6 - second chamber, 7 - guide cavity, 8 - reduction cavity, 9 - transmission cavity, 10 - first hole, 11 - installation groove, 12 - mounting bracket, 13 - first bearing installation groove, 14 - second bearing installation groove, 15 - guide groove, 16 - fixed seat, 17 - wiring port, 18 - drive motor, 19 - planetary reduction mechanism, 20 - output mechanism, 21 - toothed ring, 22 - output shaft, 23 - guide sleeve. Detailed Embodiments

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0020] Embodiment 1

[0021] A dry fixed brake caliper body includes a brake port 1 at the middle position. The caliper body part above the brake port 1 is the upper caliper 2, and the caliper body part below the brake port 1 is the lower caliper 3. A first chamber 4 extending downward is provided on the upper end surface of the upper caliper 2, and a top cover 5 is fixedly covered outside the first chamber 4. A second chamber 6 extending upward is provided on the lower end surface of the upper caliper 2. The first chamber 4 and the second chamber 6 are communicated. It also includes a guide chamber 7, and the guide chamber 7 is communicated with the first chamber. The depth directions of the first chamber 4 and the second chamber 6 are both in the axial direction, and the guide chamber 7 is axially arranged. By arranging an installation chamber on the outside and an installation chamber on the inside, the caliper body provides the possibility for the installation of the motor and the transmission mechanism, eliminating the need for a split design of the caliper. Moreover, the caliper body is more convenient to form. The entire chamber is designed in the axial direction, so the design of the tooling fixture is also more convenient. At the same time, the traditional output structure is designed on both sides, saving the overall longitudinal space completely, and the accuracy is easier to control, enabling a larger braking torque to be output.

[0022] The first chamber 4 includes a reduction chamber 8 for installing a reduction mechanism at the middle position and transmission chambers 9 on both sides of the reduction chamber 8. The transmission chambers 9 and the guide chamber 7 are coaxially arranged and communicated with each other. A first hole 10 is provided at the bottom of the reduction chamber 8, and the first hole 10 is communicated with the second chamber 6. The second chamber 6 is used to install a drive motor 18. The overall layout is symmetric. The reduction chamber 8 in the middle is coaxially arranged with the second chamber 6. The axes of the two transmission chambers 9 are parallel to the axis of the reduction chamber 8, and at the same time, the axes of the two transmission chambers 9 are coplanar with the axis of the reduction chamber 8.

[0023] An installation groove 11 is provided on the bottom surface of the reduction chamber 8. The cross-sectional shape of the installation groove 11 is non-circular. The installation groove 11 is used to install the mounting frame 12 of the reduction mechanism, and the first hole 10 is located on the bottom surface of the installation groove 11. The mounting frame 12 can be directly installed in the installation groove 11. Since the installation groove 11 is non-circular, it will not shift in position, making the assembly more convenient. Specifically, in this embodiment, the number of planetary gears is three, so the shape of the installation groove 11 is "human" shaped.

[0024] In this embodiment, the transmission chamber 9 includes a bearing installation groove one 13 provided, and a bearing installation groove two 14 is provided on the inner side surface of the top cover 5. The bearing installation groove one 13 and the bearing installation groove two 14 form a complete bearing groove.

[0025] In this embodiment, a guiding groove 15 for guiding the driving shaft is provided on the bottom surface of the bearing installation groove two 14 of the top cover 5. The guiding groove 15, the transmission cavity 9 and the guiding cavity 7 are coaxially arranged. Since the driving shaft moves at a high speed during the process of driving the brake block to move and return, in order to ensure smooth braking, the motion state of the driving shaft has high requirements. In this solution, the driving shaft adopts a structure with guiding both above and below, so as to ensure the motion state of the driving shaft

[0026] In this embodiment, a fixing seat 16 is provided on the upper caliper 2 near the jaw side, and a wiring port 17 is installed on the side surface of the jaw side of the upper caliper 2. The caliper is fixed to the vehicle body through the fixing seat 16

[0027] In this embodiment, the lower caliper 3 and the upper caliper 2 are of an integrally formed structure, and the structure of the lower caliper 3 is the same as that of the upper caliper 2. That is, both the upper caliper 2 and the lower caliper 3 can achieve the braking function

[0028] Embodiment 2

[0029] This embodiment further limits on the basis of Embodiment 1, and the caliper is integrally cast and formed

[0030] Embodiment 3

[0031] A brake caliper, adopting the above-mentioned dry fixed type brake caliper body, further includes a driving motor 18, a planetary reduction mechanism 19 and an output mechanism 20. The driving motor 18 is installed in the second chamber 6 and the output shaft 22 is connected to the planetary reduction mechanism 19 in the first chamber 4. The planetary reduction mechanism 19 includes a first gear connected to the driving motor 18 in the middle, and includes second gears meshing around the first gear. The number of the second gears is three, and they are all installed on the mounting bracket 12. The output unit of the planetary reduction mechanism 19 is a toothed ring 21. Transmission teeth are provided on both the inner ring and the outer ring of the toothed ring 21, and the second gears are all meshed with the inner ring of the toothed ring 21. The output mechanism 20 is an output gear meshed with the toothed ring 21 and an output shaft 22 threadedly matched with the output gear coaxially. The output gear is meshed with the outer ring of the toothed ring 21, and the rotation of the toothed ring 21 drives the output gear to rotate

[0032] The lower end of the output shaft 22 is inserted into the guiding cavity 7. A guiding sleeve 23 is arranged in the guiding cavity 7. The guiding sleeve 23 is slidably connected with the output shaft 22. The rotation of the toothed ring 21 drives the output gear to rotate, and the rotation of the output gear drives the output shaft 22 to move axially

[0033] Compared with the prior art, this solution has the following beneficial effects: This solution creatively adopts the scheme of opening holes above and below and guiding on both sides, so that the overall size is basically the same as that of the fixed caliper in the axial direction, and the appearance cleanliness is high. All transmission components can be hidden in the cavity, providing a basis and possibility for the electrification development of the fixed caliper

Claims

1. A dry fixed brake caliper body, characterized in that: It includes a braking port (1) at the middle position. The caliper part above the braking port (1) is the upper caliper (2), and the caliper part below the braking port (1) is the lower caliper (3); a first chamber (4) extending downward is provided on the upper end surface of the upper caliper (2), and a top cover (5) is fixedly covered outside the first chamber (4). A second chamber (6) extending upward is provided on the lower end surface of the upper caliper (2), and the first chamber (4) and the second chamber (6) are communicated. It further includes a guiding chamber (7), and the guiding chamber (7) is communicated with the first chamber. The depth directions of the first chamber (4) and the second chamber (6) are both the axial directions, and the guiding chamber (7) is axially arranged.

2. The dry fixed brake caliper body according to claim 1, characterized in that: The first chamber (4) includes a reduction chamber (8) for installing a reduction mechanism at the middle position and transmission chambers (9) on both sides of the reduction chamber (8). The transmission chambers (9) and the guiding chamber (7) are coaxially arranged and communicated with each other. A first hole (10) is provided at the bottom of the reduction chamber (8), and the first hole (10) is communicated with the second chamber (6). The second chamber (6) is used for installing a driving motor (18).

3. A dry fixed brake caliper body according to claim 2, characterized in that: An installation groove (11) is provided on the bottom surface of the reduction chamber (8). The cross-sectional shape of the installation groove (11) is a non-circular shape. The installation groove (11) is used for installing a mounting bracket (12) of the reduction mechanism, and the first hole (10) is located on the bottom surface of the installation groove (11).

4. A dry fixed brake caliper body according to claim 3, characterized in that: The transmission chamber (9) includes a first bearing installation groove (13). The inner side surface of the top cover (5) is provided with a second bearing installation groove (14). The first bearing installation groove (13) and the second bearing installation groove (14) form a complete bearing groove.

5. A dry fixed brake caliper body according to claim 4, characterized in that: The top cover (5) is provided with a guiding groove (15) for guiding the driving shaft on the bottom surface of the second bearing installation groove (14). The guiding groove (15) is coaxially arranged with the transmission chamber (9) and the guiding chamber (7).

6. The dry fixed brake caliper body according to claim 1, characterized in that: A fixed seat (16) is provided on the upper caliper (2) near the jaw side, and a wiring port (17) is installed on the side surface of the jaw side of the upper caliper (2).

7. A dry fixed brake caliper body according to claim 1 or 2 or 3 or 4 or 5 or 6, characterized in that: The lower caliper (3) and the upper caliper (2) are of an integrally formed structure, and the structure of the lower caliper (3) is the same as that of the upper caliper (2).

8. Brake caliper, characterized in that: Adopting a dry fixed braking caliper body according to any one of claims 1 to 7, it further includes a driving motor (18), a planetary reduction mechanism (19) and an output mechanism (20). The driving motor (18) is installed in the second chamber (6) and the output shaft (22) is connected to the planetary reduction mechanism (19) in the first chamber (4). The output unit of the planetary reduction mechanism (19) is a gear ring (21). The output mechanism (20) is an output gear meshing with the gear ring (21) and an output shaft (22) threadedly matched with the output gear coaxially. The lower end of the output shaft (22) is inserted into the guiding chamber (7). A guiding sleeve (23) is arranged in the guiding chamber (7), and the guiding sleeve (23) is slidably connected with the output shaft (22). The rotation of the gear ring (21) drives the output gear to rotate, and the rotation of the output gear drives the output shaft (22) to move axially.

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