Shell of brake

Abstract

The utility model relates to a shell of a brake, which comprises an outer friction plate connecting part, a driving mechanism connecting part and an arch part, the outer friction plate connecting part and the driving mechanism connecting part are oppositely arranged at intervals in the axial direction, the arch part is connected with the outer friction plate connecting part and the driving mechanism connecting part, the arch part is arranged on the circumferential side of a support in the circumferential direction, and the two ends of the arch part extend to the two ends of the support in the circumferential direction. First supporting bodies used for providing axial supporting are arranged at the two ends of the arch part, and the two ends of each first supporting body are connected with the outer friction plate connecting part and the driving mechanism connecting part respectively. The shell with the structure has high strength, light metal such as aluminum can be selected as the shell material, and the strength of the shell is still ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the casing of brake. BACKGROUND

[0002] One kind of brake mode of brake is realized braking through contact friction.Including brake disc, support and brake mechanism in brake, support is from one side and is covered in the peripheral portion outside brake disc, and brake mechanism is connected with support through guiding mechanism and can be axially relatively moved.Brake mechanism generally includes driving unit and friction plate unit, and under the driving of driving unit, the contact friction type braking of the clamping of friction plate opposite is carried out on the two sides of brake disc.

[0003] Generally including casing in brake mechanism, one end of casing is connected with driving unit of driving inner friction plate, the other end is connected with outer friction plate, needs to bear the reaction force generated by braking, and the strength of casing itself must be enough.Based on this reason, the material of casing is generally selected to high-strength material, and therefore has relatively heavy weight.

[0004] When lightweight, flat design is envisaged to casing using aluminum material or other equivalent lightweight material, the strength deficiency problem of lightweight material itself will lead to insufficient strength of the casing made. CONTENT OF UTILITY MODEL

[0005] The main purpose of the utility model is to provide a brake casing which can be made of lightweight material and has required strength.

[0006] In order to achieve the above purpose, the utility model provides a casing of brake, which comprises:

[0007] Axially spaced-apart outer friction plate connecting portion and driving mechanism connecting portion,

[0008] Arch portion, connecting the outer friction plate connecting portion and the driving mechanism connecting portion, the arch portion is arranged on the periphery of the support along the circumferential direction, and the two ends of the arch portion extend to the two ends of the support along the circumferential direction, the two ends of the arch portion are provided with first support bodies for providing axial support, and the two ends of the first support bodies are connected with the outer friction plate connecting portion and the driving mechanism connecting portion respectively.

[0009] In some embodiments of the utility model, the arch portion is further provided with one or more second support bodies for providing axial support at the central position, and the two ends of the second support bodies are connected with the outer friction plate connecting portion and the driving mechanism connecting portion respectively.

[0010] In some embodiments of the utility model, the material of the casing is aluminum.

[0011] In some embodiments of the utility model, the casing is connected with the support through the guide mechanism, and the casing is guided by the guide mechanism to axially translate relative to the support.

[0012] In some embodiments of the utility model, the guide mechanism is arranged in the guide mechanism avoiding hole.

[0013] In some embodiments of the utility model, the guide mechanism is a guide pin mechanism, the guide pin mechanism includes a pin hole part arranged on the support, a guide pin connected with the support, the driving mechanism connecting part has a guide pin assembly part, and the guide pin is screw assembled in the guide pin assembly part.

[0014] In some embodiments of the utility model, the connecting position of the outer friction plate connecting part and the arch part extends to both ends of the arch part, and the connecting position of the driving mechanism connecting part and the arch part extends to both ends of the arch part.

[0015] In some embodiments of the utility model, the driving mechanism includes a piston, the piston includes a plug rod and a plug cylinder, and the plug cylinder is connected with the driving mechanism connecting part.

[0016] In some embodiments of the utility model, the casing has a plug cylinder part constituting the plug cylinder, and the plug cylinder part is integrally connected with the driving mechanism connecting part.

[0017] In some embodiments of the utility model, the first support body is integrally connected with the outer friction plate connecting part, the driving mechanism connecting part and the arch part.

[0018] The casing of the structure has high strength, and light metals such as aluminum can be selected as the casing material and the strength of the casing is still ensured. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The combination structure schematic diagram of the support and the casing in the brake is shown.

[0020] Figure 2 The explosion structure schematic diagram of the support, the friction plate and the casing is shown.

[0021] Figure 3 The combination structure schematic diagram of the support and the casing is shown.

[0022] Figure 4 The structure schematic diagram of the casing is shown.

[0023] Figure 5 The structure schematic diagram of the arch part is shown.

[0024] Figure 6 Fig. Figure 5 A-A sectional view.

[0025] Fig.

[0026] 100 - housing,

[0027] 110 - arch, 111a, 111b - end, 112a, 112b - avoiding hole, 113 - second support body, 113a, 113b - cylindrical portion, 113c - connecting portion, 114a, 114b - first support body, 120 - outer friction plate connecting portion, 130 - driving mechanism connecting portion, 131a, 131b - guide pin fitting portion, 140 - plug cylinder,

[0028] 200 - bracket,

[0029] 210 - outer support portion, 211 - outer friction plate fixing groove, 220 - inner support portion, 221 - inner friction plate fixing groove, 230a, 230b - circumferential support portion,

[0030] 300a, 300b - guide mechanism,

[0031] 310b - pin hole portion, 320b guide pin,

[0032] 410 - outer friction plate, 420 - inner friction plate. DETAILED DESCRIPTION

[0033] In view of the problem that the housing of the prior art brake has a heavy weight, the utility model provides a housing with higher strength, so that a lighter metal can be selected as the housing material to reduce the weight of the housing.

[0034] The housing of the brake of the utility model comprises:

[0035] An outer friction plate connecting portion and a driving mechanism connecting portion are spaced apart and opposite along the axial direction,

[0036] An arch is connected to the outer friction plate connecting portion and the driving mechanism connecting portion, the arch is arranged on the side of the bracket along the circumferential direction, the two ends of the arch extend to the two ends of the bracket along the circumferential direction, the two ends of the arch are provided with first support bodies for providing axial support, and the two ends of the first support bodies are respectively connected to the outer friction plate connecting portion and the driving mechanism connecting portion.

[0037] The shell is made of light material, and the strength of the shell is solved in the shell: an arch part extending to both sides of the support is arranged in the shell, a certain strength is supplemented through the arch structure extending in this way, and then a first support body capable of providing axial support is arranged at both ends of the arch part to supplement the axial strength. Although the distribution area in the circumferential direction is increased, the arch part is arranged in the circumferential direction, so that when the hub is placed in the hub, the occupied space in the radial and axial directions is not increased, and the size of the applicable hub of the existing brake is not affected. On this principle, the shell can be made of light materials such as aluminum materials, and the strength of the shell can still be ensured.

[0038] The outer friction plate connecting part is used for connecting the outer friction plate, and the driving mechanism connecting part is used for connecting the driving mechanism. The driving mechanism is further connected to drive the inner friction plate to move in the axial direction, and the inner and outer friction plates are arranged in opposition in the axial direction. One specific structure can be referred to Figure 3 and Figure 4 , wherein Figure 3 The structure of the shell 100 on the outer side is shown, and the outer friction plate connecting part 120 is arranged on the outer side of the shell 100. The outer friction plate connecting part 120 is a whole fan-shaped sheet structure, which is arranged in parallel on the outer side of the support 200. The inner side of the outer friction plate connecting part 120 is connected with the outer friction plate 410. The outer friction plate connecting part 120 is connected with the arch part 110 in the circumferential direction and extends to both ends 111a and 111b of the arch part 110. Figure 4 The structure of the shell 100 on the inner side is shown, and the driving mechanism connecting part 130 is arranged on the inner side of the shell 100. The driving mechanism connecting part 130 is a whole fan-shaped sheet structure, which is arranged in parallel on the inner side of the support 200. The driving mechanism connecting part 120 is connected with the cylinder 140 in the driving mechanism. The driving mechanism connecting part 130 is connected with the arch part 110 in the circumferential direction and extends to both ends 111a and 111b of the arch part 110.

[0039] It should be noted that the driving mechanism structure can be a known structure. One of the structures that can be implemented includes a driving circuit, a motor, a gear set, a lead screw mechanism and a piston. The driving circuit controls the motor, and after the motor is started, the lead screw mechanism is driven in the axial direction through the gear set, and the lead screw drives the plug rod of the piston to move in the axial direction in the plug cylinder, and the plug rod pushes the inner friction plate to brake, as shown in Figure 4 , one specific structure of the shell has a plug cylinder part 140 constituting the piston plug cylinder, and the plug cylinder part 140 is integrally connected with the driving mechanism connecting part 130. Figure 4Only the plunger cylinder structure is shown, and the motor and its transmission mechanism, control circuit, screw rod, and piston and other related structures assembled on the cylinder barrel are omitted, and the screw rod mechanism can be arranged in transmission with the gear set outside the plunger cylinder portion 140 and the motor along the axial direction passing through the end of the plunger cylinder portion 140 as indicated by the dotted line in the drawing. The arrangement mode is known to those skilled in the art.

[0040] The principle of braking of the brake is known, and here only a brief introduction is made. After the driving mechanism pushes the inner friction plate to contact the inner side surface of the brake disc in the axial direction, the shell is subjected to a reaction force 0 and moves to the inner side under the guidance of the guide mechanism. At this time, the outer friction plate moves inward to contact the outer surface of the brake disc, and the inner and outer friction plates jointly clamp the brake disc to realize contact friction braking.

[0041] In the utility model, the structure of the support can be a known structure. One of the specific structures can refer to Figure 2 . The support 200 includes an outer support portion 210, an inner support portion 220, and two circumferential support portions 230a and 230b. The outer support portion 210 and the inner support portion 220 are axially spaced apart and opposite to each other, and both the outer support portion and the inner support portion are U-shaped frame structures. The two circumferential support portions are used to connect the U-shaped ends of the front support portion and the rear support portion, respectively, to form a shape similar to a saddle. In the U-shaped structure of the outer support portion 210, there is an outer friction plate guide groove 211, and the outer friction plate 410 can be guided to move in the axial direction in the outer friction plate guide groove 211. In the U-shaped structure of the inner support portion, there is an inner friction plate guide groove 212, and the inner friction plate 420 can be guided to move in the axial direction in the inner friction plate guide groove 221. The circumferential side of the friction disc is located in the space formed by the outer and inner support portions and the circumferential support portions.

[0042] In the utility model, the structure of the guide mechanism can be a known structure. One of the specific structures can refer to Figure 2 . The guide mechanism 300a includes a guide pin 320a and a pin hole 310a, wherein the pin hole is integrally arranged on the circumferential support portion 230a, the guide pin 320a is slidably fitted in the pin hole 310a, and the end of the guide pin is fixed on the shell 100. Similarly, the guide mechanism 300b includes a guide pin 320b and a pin hole 310b, wherein the pin hole is integrally arranged on the circumferential support portion 230b, the guide pin 320b is slidably fitted in the pin hole 310b, and the end of the guide pin is fixed on the shell 100. On the shell, guide pin assembly portions 131a and 131b for fixing the two guide pins 320a and 320b are arranged, and the guide pins are threadedly assembled in the guide pin assembly portions. Thus, through the sliding between the guide pin and the pin hole, the shell 100 can relatively translate in the axial direction with respect to the support 200.

[0043] Preferably, an avoiding hole for avoiding the guide mechanism is arranged on the arch portion. Figure 3 When the arch portion 100 extends in the circumferential direction and passes through the guide mechanisms 300a, 300b with the same or close radius distance, the guide mechanisms can be avoided by arranging the avoiding holes 112a, 112b, and the guide mechanisms can be arranged in the avoiding holes. The radius distance refers to the distance to the center of the brake disc. Of course, another implementation manner is to select not to arrange the avoiding holes, and in this case, the arch portion needs to avoid the guide mechanisms in the circumferential direction outside the arch portion, and in this case, the overall radius of the brake is increased.

[0044] The first support bodies arranged at two ends of the arch portion are used to provide the axial support effect. The structure of the first support body is any structure capable of providing the axial support, and the support column can be hollow or solid, and can be integrally formed with the arch portion or separately formed and then connected together. One specific structure can refer to Figure 5 and Figure 6 The first support bodies 114a, 114b are arranged in the axial direction in the form of a column, and the first support bodies 114a, 114b are arranged at two ends of the arch portion 110. The two ends of the first support body are further connected with the outer friction plate connecting portion 120 and the driving mechanism connecting portion 130 respectively, so as to increase the strength of the two ends of the end shell.

[0045] The second support body can also be arranged at the center of the arch portion to provide the axial support. The structure of the second support body is any structure capable of providing the axial support, and the support column can be hollow or solid, and can be integrally formed with the arch portion or separately formed and then connected together. One specific structure can refer to Figure 5 and Figure 6 The second support body 113 is arranged at the center of the arch portion 110. The second support body 113 mainly includes two column portions 113a, 113b arranged in the axial direction, and a connecting portion 113c connected between the outer ends of the two column portions. The two ends of the second support body 113 are further connected with the outer friction plate connecting portion 120 and the driving mechanism connecting portion 130 respectively, so as to increase the strength of the center of the end shell. Further, the second support body 113 is located in the outer friction plate fixing groove 211 and the inner friction plate fixing groove 221 between the two guide mechanisms 300a, 300b, and is located above the outer friction plate 410 and the inner friction plate 420, so as to improve the strength of the shell and make the structure more compact.

[0046] The embodiments in the utility model are only used for describing the utility model, and do not constitute the limitation to the scope of claims, and other substantially equivalent alternatives that can be thought of by the person skilled in the art are all within the protection scope of the utility model.

Claims

1. A brake housing, characterized in that... include: The connecting parts of the outer friction plates and the driving mechanism are axially spaced apart. An arch connects the outer friction plate connecting part and the drive mechanism connecting part. The arch is circumferentially arranged on the periphery of the bracket. Both ends of the arch extend circumferentially to both ends of the bracket. At both ends of the arch, there is a first support body for providing axial support. The two ends of the first support body are respectively connected to the outer friction plate connecting part and the drive mechanism connecting part.

2. The housing as described in claim 1, characterized in that... The arch also has one or more second supports at the center for providing axial support, with the two ends of the second supports connected to the outer friction plate connection and the drive mechanism connection, respectively.

3. The housing as described in claim 1, characterized in that... The shell is made of aluminum.

4. The housing as described in claim 1, characterized in that... The housing is connected to the bracket via a guide mechanism, and the housing is guided by the guide mechanism to translate axially relative to the bracket.

5. The housing as described in claim 4, characterized in that... A guide mechanism clearance hole is provided on the arch, and the guide mechanism is disposed in the guide mechanism clearance hole.

6. The housing as described in claim 4, characterized in that... The guiding mechanism is a guide pin mechanism, which includes a pin hole on the bracket and a guide pin connected to the bracket. The drive mechanism connection part has a guide pin assembly part, and the guide pin is threadedly assembled in the guide pin assembly part.

7. The housing as claimed in claim 1, characterized in that... The connection point between the external friction plate connecting part and the arch extends to both ends of the arch, and the connection point between the drive mechanism connecting part and the arch extends to both ends of the arch.

8. The housing as claimed in claim 1, characterized in that... The drive mechanism includes a piston, which includes a piston rod and a piston cylinder, and the piston cylinder is connected to the drive mechanism connection part.

9. The housing as claimed in claim 8, characterized in that... The housing has a piston cylinder portion that constitutes the piston cylinder, and the piston cylinder portion is integrally connected to the drive mechanism connection portion.

10. The housing as claimed in claim 1, characterized in that... The first support is integrally connected to the external friction plate connection part, the drive mechanism connection part, and the arch.

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