Based on a brake caliper that integrates driving and IPB parking

Abstract

The present invention relates to the technical field of brake parts, and in particular to a brake caliper based on integrated driving and IPB parking. Its technical solution includes a fixed caliper body, one end of which is connected to a bolt bidirectional positioning tube by bolts, and the outer surface of the bolt bidirectional positioning tube is fixedly connected to a hollow protective tube for protection through a mounting groove. A part of the pressure transmitted by the brake oil of the present invention is transmitted to the sealing mounting frame by the annular airbag, and the other part of the pressure is transmitted to the piston tube through arc extrusion, so that the piston tube can fully transmit the pressure to the inner brake pad assembly and the outer brake pad assembly, while the sealing mounting frame only slides inside the cavity slide, converting the impact force of the brake oil into the pressure of the internal mechanism of the sealing mounting frame fitting the pipeline, thereby achieving the goal of increasing the brake oil pressure on the piston while protecting the brake oil pipe, so that it remains connected to the caliper and reduces the occurrence of leakage incidents.

Description

Technical Field

[0001] The present invention relates to the technical field of brake parts, and in particular to a brake caliper integrating driving and IPB parking. Background Art

[0002] The floating caliper has a bracket fixed on the steering knuckle (horn). When braking or releasing, the housing (caliper body) can move on the bracket along the guide mechanism. When braking, the piston pushes the friction plate against the brake disc under the action of hydraulic pressure. After the friction plate on the piston side contacts the brake disc, the housing moves, driving the friction plate on the claw side to press against the brake disc, achieving braking deceleration.

[0003] Fixed caliper, the caliper is a whole, fixed on the steering knuckle, with pistons on both sides of the brake disc. When braking, the pistons on both sides push the friction plates on both sides to move towards each other and press against the brake disc under the action of hydraulic pressure to achieve braking deceleration.

[0004] In the patent document with the publication number CN111306221A, it is disclosed that the other end of the first connecting piece is connected to the upper end of the second connecting piece, and the lower end of the second connecting piece extends downward. The caliper cover is fixed to the caliper by clamping the caliper vertical bars at both ends of the caliper through two clamping assemblies respectively, and clamping the caliper cross bar on one side of the caliper through the first fastener. By arranging a thermal conductive silicone pad on the lower surface of the first connecting piece and the inner side of the first fastener, the impact of the caliper cover on the caliper can be reduced, and the caliper cover can be prevented from generating noise during the operation of the car; compared with the existing caliper cover, this caliper cover has the advantages of easy installation, firm fixation and low noise.

[0005] When the above device is used, the following problems exist:

[0006] When the fixed caliper rubs the brake disc for emergency braking, it only uses the traditional brake oil pipe installed inside the caliper. The brake oil pipe is used to transmit the brake oil channel. The brake oil pipe is connected to the master brake cylinder and the brake slave cylinder. Since the part from the master cylinder to the part in front of the suspension does not need to be movable, this part of the pipe will be made of metal material, and the metal pipe bypasses the suspension part to the slave cylinder and uses a hose to transmit the brake fluid. Because the brake slave cylinder is installed on the steering knuckle, it will move up and down, so this part can only use a movable hose. As a result, when braking, the oil pipe will be under considerable pressure inside the fixed caliper due to the transmission of brake oil, causing the connection part to be prone to brake oil leakage if it is used for a long time without maintenance, resulting in the dilemma of low output force during emergency braking;

[0007] At the same time, no matter whether the inside of the oil pipe is a flexible hose or a metal pipe, it is sealed and there will be no movement inside. If the brake oil is blocked during long-term use, the entire brake system will become unstable.

[0008] Therefore, the present application proposes a brake caliper that integrates driving and IPB parking. Summary of the invention

[0009] The purpose of the present invention is to solve the problem of brake oil leakage in the background technology, which causes low output force during emergency braking, and to propose a brake caliper based on integrated driving and IPB parking.

[0010] The technical solution of the present invention is based on a brake caliper that integrates driving and IPB parking, comprising a fixed caliper body, one end of which is connected to a bolt bidirectional positioning tube by bolts, the outer surface of which is fixedly connected to a hollow protective tube for protection by a mounting groove, and the inner wall of which is fixedly connected to a brake oil pipe for circulating brake oil;

[0011] One end of the bolt bidirectional positioning tube is fixedly connected to a cavity slide, the inner wall of the cavity slide is slidably connected to a sealing mounting frame, one end of the sealing mounting frame is fixedly connected to a slide tube, one end of the slide tube is threadedly mounted on the outer surface of the cavity slide, one end of the slide tube is fixedly connected to a spring assembly, one end of the spring assembly away from the slide tube is fixedly connected to a push rod, the push rod is fixedly mounted on the surface of the cavity slide, and the push rod is slidably connected to the inside of the slide tube;

[0012] One end of the sealing mounting frame is fixedly connected to an annular airbag, and an inclined conducting frame is fixedly connected obliquely below the annular airbag.

[0013] Optionally, an IPB caliper limit assembly is provided at one end of the fixed caliper body, and a hollow sealing frame is fixedly connected to one end of the IPB caliper limit assembly. A first dust cover and a second dust cover are provided at the connection between the hollow sealing frame and the two ends of the cylinder port of the fixed caliper body. The interior of the fixed caliper body is slidably connected with an inner brake pad assembly and an outer brake pad assembly, and the second dust cover is slidably connected to the interior of the inner brake pad assembly and the outer brake pad assembly.

[0014] Optionally, the outer surface of the hollow sealing frame is provided with an IPB caliper inner plate, and two ends of the IPB caliper inner plate are fixedly connected with two groups of pin dust bushings, the interior of the IPB caliper inner plate is slidably connected with a guide pin shaft through two groups of pin dust bushings, and the guide pin shaft passes through one end of the IPB caliper inner plate and is arranged on the outer surface of the fixed caliper body.

[0015] Optionally, a limited brake assembly is provided inside the IPB caliper limit assembly, and the limited brake assembly is located inside the hollow sealing frame. There are multiple groups of inner brake pad assemblies and outer brake pad assemblies, and brake discs are attached between the multiple groups of inner brake pad assemblies and outer brake pad assemblies.

[0016] Optionally, the limit brake assembly is fixedly connected to a spring assembly through one end of the fixed caliper body, and the interior of the fixed caliper body is fixedly connected to a hollow built-in tube assembly. The limit brake assembly is fixedly connected to a push piston through one end of the hollow built-in tube assembly through a first brake oil release chamber opened inside the fixed caliper body, and the push piston is arranged on the outer surface of the inner brake pad assembly.

[0017] Optionally, the top of the inclined conduction frame is fixedly connected to a pushing clamping frame, one end of the pushing clamping frame is fitted to the outer surface of the annular airbag, an annular limit block is fixedly connected to the inner wall of the pushing clamping frame, the annular limit block is arranged in a circular bending state under normal conditions, both ends of the pushing clamping frame are fixedly connected to the limit blocks, the limit block is fixedly installed at one end of the annular airbag, the interior of the fixed caliper body is fixedly connected to a guide plate through a second brake oil release chamber, and the other end of the pushing clamping frame is fitted to the outer surface of the guide plate.

[0018] Optionally, the interior of the fixed caliper body is slidably connected to a piston tube via a slide rail, the piston tube is fitted to one end of the inner brake pad assembly, a second brake oil release chamber is opened at one end of the fixed caliper body, the first brake oil release chamber is connected to the second brake oil release chamber, and the inclined conduction frame is an inclined annular channel.

[0019] Optionally, the inner wall of the bolt bidirectional positioning tube is slidably connected to a convergence ring frame through a slide groove, the interior of the convergence ring frame is slidably connected to an annular convergence block, the annular convergence block and the convergence ring frame are slidably connected between the cavity slide and the brake oil pipe, and the bolt bidirectional positioning tube, the convergence ring frame, the cavity slide, the annular convergence block and the brake oil pipe are arranged in a sealed state.

[0020] Optionally, a laminated sealing ring is fixedly connected to the inner wall of the bolt bidirectional positioning tube, and the laminated sealing ring is fixedly installed between the annular convergence block and the convergence annular frame. A plurality of annular interlayers are provided inside the laminated sealing ring, and one end of the laminated sealing ring is fixedly connected to a wave-type receiving frame through a group of interlayers.

[0021] Optionally, the inner wall of the laminated sealing ring is fixedly connected to a pressure-resistant piston, the outer surface of the pressure-resistant piston is slidably connected to a hollow piston tube, one end of the hollow piston tube is fixedly connected to a folding frame, the interior of the folding frame is slidably connected to an annular tube, the inner wall of the folding frame is fixedly connected to a load-bearing spring, and the load-bearing spring is fixedly installed on the outer surface of the annular tube.

[0022] Compared with the prior art, the present invention has the following beneficial technical effects:

[0023] 1. A part of the pressure transmitted by the brake fluid is transmitted to the seal mounting frame by the annular airbag, and the other part of the pressure is transmitted to the piston tube through arc extrusion, so that the piston tube can fully transmit the pressure to the inner brake pad assembly and the outer brake pad assembly, while the seal mounting frame only slides inside the cavity slide, converting the impact force of the brake fluid into the pressure of the seal mounting frame fitting the internal mechanism of the pipeline, thereby achieving the goal of increasing the brake fluid pressure on the piston while protecting the brake oil pipe, keeping it connected to the caliper, and reducing the occurrence of leakage incidents;

[0024] 2. The laminated seal ring is composed of multiple S-shaped annular components stacked and crossed, and a multi-layer laminated structure, such as a heat insulation layer and an antifreeze layer, is placed in the interlayer. While resisting the impact of brake oil, it enables the brake oil pipe to work normally in different extreme weather conditions, providing braking power, thereby improving the safety and service life of the brake oil pipe;

[0025] 3. With the impact of brake oil, the pipe joints are prone to loosening and leakage, while the convergence ring frame and the annular convergence block expand within the specified range, which not only increases the brake oil input, but also buffers the impact of the brake oil;

[0026] 4. The hollow piston tube stretches outward along the annular tube by pressure squeezing the folding frame, and utilizes the sliding friction of the multi-folding frame along the annular tube and the elastic force of the load-bearing spring to buffer the impact pressure of the brake oil. When the pressure-resistant piston helps the wave-type receiving frame to transmit the pressure to the annular convergence block, the convergence annular frame and the annular convergence block will shake when they converge, so as to shake off the blocked residual material and avoid material solidification. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the brake caliper integrating driving and IPB parking according to the present invention;

[0028] Figure 2 is a schematic diagram of the structure of a fixed caliper body;

[0029] Figure 3 is a schematic diagram of the structure of the inner brake pad assembly;

[0030] Figure 4 for Figure 3 A magnified schematic diagram of the middle part;

[0031] Figure 5 for Figure 3 The enlarged schematic diagram of the middle B part;

[0032] Figure 6 It is a schematic diagram of the structure of the annular airbag;

[0033] Figure 7 It is a structural schematic diagram of a sealing mounting frame;

[0034] Figure 8It is a schematic diagram of the structure of a laminated sealing ring;

[0035] Fig. 9 It is a structural schematic diagram of a wave-type receiving frame;

[0036] Fig.10 It is a schematic diagram of the structure of the hollow piston tube.

[0037] Figure numerals: 1, guide pin shaft; 2, pin dust bushing; 3, IPB caliper body plate; 4, first dust cover; 5, fixed caliper body; 6, second dust cover; 7, inner brake pad assembly; 8, outer brake pad assembly; 9, brake disc; 10, bolt two-way positioning tube; 11, hollow sealing frame; 12, IPB caliper limit assembly; 13, hollow protective tube; 14, brake oil pipe; 15, convergence ring frame; 16, annular convergence block; 17, piston tube; 18, limit brake assembly; 19, spring assembly; 20, hollow built-in tube assembly; 21, push 1. piston; 22. cavity slide; 23. sealing mounting frame; 24. fitting frame; 25. laminated sealing ring; 26. annular airbag; 27. guide plate; 28. inclined conduction frame; 29. ​​pushing clamping frame; 30. annular limit block; 31. limit block; 32. pushing rod; 33. spring assembly; 34. slideway tube; 35. first brake oil release chamber; 36. second brake oil release chamber; 37. wave receiving frame; 38. interlayer; 39. annular tube; 40. folding frame; 41. load-bearing spring; 42. pressure-resistant piston; 43. hollow piston tube. DETAILED DESCRIPTION

[0038] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0039] Example 1

[0040] like Figure 1 - Figure 6 As shown, the brake caliper based on the integration of driving and IPB parking proposed by the present invention comprises a fixed caliper body 5, which is fixed on the vehicle suspension, such as a steering knuckle or a connecting plate, and is integrated with the vehicle body and cannot rotate. During braking, one end of the friction block will press against the bracket groove, and the friction force on the brake disc 9 will be transmitted to the bracket, thereby hindering the rotation of the brake disc 9. It is characterized in that one end of the fixed caliper body 5 is connected with a bolt bidirectional positioning tube 10 by bolts, and the outer surface of the bolt bidirectional positioning tube 10 is fixedly connected with a hollow protective tube 13 for protection through a mounting groove. Figure 1 In the middle, the hollow protective tube 13 is used to protect the brake oil pipe 14, the double-layer pipeline state protects the brake oil pipe 14 to smoothly circulate the brake oil and prevent the brake oil from leaking. The inner wall of the bolt bidirectional positioning tube 10 is fixedly connected with the brake oil pipe 14 for circulating the brake oil;

[0041] One end of the bolt bidirectional positioning tube 10 is fixedly connected to the cavity slide 22, and the inner wall of the cavity slide 22 is slidably connected to the sealing mounting frame 23, and one end of the sealing mounting frame 23 is fixedly connected to the slideway tube 34, and one end of the slideway tube 34 is threadedly installed on the outer surface of the cavity slide 22, and one end of the slideway tube 34 is fixedly connected to the spring assembly 33, and the end of the spring assembly 33 away from the slideway tube 34 is fixedly connected to the push rod 32, and the push rod 32 is fixedly installed on the surface of the cavity slide 22, and the push rod 32 is slidably connected to the inside of the slideway tube 34. During the sliding process of the sealing mounting frame 23, the sealing mounting frame 23 is limited along the sliding position of the push rod 32 by the slideway tube 34, and the pressure of the brake oil on the sealing mounting frame 23 is continuously buffered by the spring assembly 33;

[0042] In this embodiment, an annular airbag 26 is fixedly connected to one end of the sealing mounting frame 23, and an inclined conductive frame 28 is fixedly connected to the oblique lower part of the annular airbag 26. The brake oil is transported from the brake oil pipe 14 to the inside of the fixed caliper body 5. As the brake command is continuously pressed, the amount of brake oil infusion gradually increases. Due to the larger diameter of the pipe opening at the annular airbag 26, the brake oil enters the inclined conductive frame 28 with a smaller pipe opening diameter, causing the inclined conductive frame 28 to be squeezed by the brake oil, causing the inclined conductive frame 28 to pass through the oiling annular airbag 26. The top end of the annular airbag 26 is in contact with the inner wall of the fixed caliper body 5, causing the deformation direction of the annular airbag 26 to be only on both sides, and one end of the annular airbag 26 is pushed by the clamping frame 29. The limit causes the approximate pressure transmission direction to be located at the sealing mounting bracket 23, and the sealing mounting bracket 23 slides outward along the inner cavity of the cavity slide 22, so that part of the pressure transmitted by the brake oil is transmitted to the sealing mounting bracket 23 by the annular airbag 26, and the other part of the pressure is transmitted to the piston tube 17 through arc extrusion, so that the piston tube 17 can fully transmit the pressure to the inner brake pad assembly 7 and the outer brake pad assembly 8, and the sealing mounting bracket 23 only slides inside the cavity slide 22, converting the impact force of the brake oil into the pressure of the sealing mounting bracket 23 against the internal structure of the pipeline, thereby achieving the goal of increasing the brake oil pressure on the piston while protecting the brake oil pipe, keeping it connected with the caliper, and reducing the occurrence of leakage incidents.

[0043] Example 2

[0044] like Figure 1 - Figure 3As shown, based on Example 1, an IPB caliper limiting assembly 12 is provided at one end of the fixed caliper body 5, and a hollow sealing frame 11 is fixedly connected to one end of the IPB caliper limiting assembly 12. A first dust cover 4 and a second dust cover 6 are provided at the connection between the hollow sealing frame 11 and the two ends of the cylinder port of the fixed caliper body 5. The first dust cover 4 and the second dust cover 6 prevent external air from entering the interior of the fixed caliper body 5 or hydraulic oil from leaking from the fixed caliper body 5. An inner brake pad assembly 7 and an outer brake pad assembly 8 are slidably connected to the interior of the fixed caliper body 5. The outer brake pad assembly 8 is installed together with the inner brake pad assembly 7 on both sides of the brake disc 9, and is limited to the fixed caliper body by the spring sheet on the bracket. 5, the brake disc can be clamped or loosened with the relative movement of the piston tube 17 and the pushing piston 21, thereby achieving braking and releasing the brake. The second dust cover 6 is slidably connected to the inside of the inner brake pad assembly 7 and the outer brake pad assembly 8. The IPB caliper limit assembly 12 installed on the fixed caliper body 5 generates a pre-tightening force on the pushing piston 21, pushing the inner brake pad assembly 7 and the outer brake pad assembly 8 close to the forward end of the hollow sealing frame 11, ensuring that the inner brake pad assembly 7 and the outer brake pad assembly 8 are always close to the fixed caliper body 5 in the forward braking direction, and no collision will occur during braking due to the gap between the inner brake pad assembly 7, the outer brake pad assembly 8 and the bracket position of the fixed caliper body 5.

[0045] In this embodiment, the outer surface of the hollow sealing frame 11 is provided with an IPB caliper inner plate 3, two sets of pin dust bushings 2 are fixedly connected at both ends of the IPB caliper inner plate 3, and the interior of the IPB caliper inner plate 3 is slidably connected with a guide pin shaft 1 through the two sets of pin dust bushings 2. The guide pin shaft 1 passes through one end of the IPB caliper inner plate 3 and is arranged on the outer surface of the fixed caliper body 5. An IPB caliper limit assembly 12 is added to the fixed caliper body 5, so that the same caliper has both driving and mechanical parking brake functions, saving space, and the brake slide The resistance is small, the deformation of the caliper body is small, and the cost can be reduced. A limited brake assembly 18 is arranged inside the IPB caliper limit assembly 12. The limited brake assembly 18 is located inside the hollow sealing frame 11. There are multiple groups of inner brake block assemblies 7 and outer brake block assemblies 8. A brake disc 9 is attached between the multiple groups of inner brake block assemblies 7 and outer brake block assemblies 8. The brake disc 9 is rigidly connected to the wheel and rotates with the wheel. When braking, the inner and outer friction blocks clamp the brake disc, and the friction with the brake disc hinders the rotation of the brake disc, thereby playing a braking role.

[0046] The limit brake assembly 18 passes through one end of the fixed caliper body 5 and is fixedly connected to a spring assembly 19. The interior of the fixed caliper body 5 is fixedly connected to a hollow built-in tube assembly 20. When the pushing piston 21 drives the inner brake block assembly 7 and the outer brake block assembly 8 to clamp the brake disc 9 through the brake oil, the spring assembly 19 limits the sliding distance of the pushing piston 21 and buffers the movement of the pushing piston 21 when the wheel shakes. The limit brake assembly 18 passes through one end of the hollow built-in tube assembly 20 through the first brake oil release chamber 3 opened inside the fixed caliper body 5. The pushing piston 21 is fixedly connected to the inner hollow tube assembly 20, and the pushing piston 21 can be relatively sealed to prevent the leakage of brake oil. The pushing piston 21 is arranged on the outer surface of the inner brake pad assembly 7. The piston tube 17 and the pushing piston 21 are installed in the caliper body, and the outer end surfaces are close to the outer brake pad assembly 8 and the inner brake pad assembly 7. When the brake is stepped on, the brake fluid pushes the piston tube 17 and the pushing piston 21 to move outward, and the piston tube 17 and the pushing piston 21 push the outer brake pad assembly 8 and the inner brake pad assembly 7 to clamp the brake disc 9 to generate friction braking force.

[0047] Example 3

[0048] like Figure 3 - Figure 6 As shown, based on the above-mentioned embodiment 1 or 2, the top of the inclined conductive frame 28 is fixedly connected with a pushing clamping frame 29, one end of the pushing clamping frame 29 is attached to the outer surface of the annular airbag 26, and an annular limit block 30 is fixedly connected to the inner wall of the pushing clamping frame 29. The annular limit block 30 is arranged in a circular bending state under normal conditions, and the two ends of the pushing clamping frame 29 are fixedly connected with the limit blocks 31, and the limit block 31 is fixedly installed at one end of the annular airbag 26. The interior of the fixed caliper body 5 is fixedly connected with the guide inverted plate 27 through the second brake oil release chamber 36, and the other end of the pushing clamping frame 29 is attached to the outer surface of the guide inverted plate 27. When the inclined conductive frame 28 expands upward, the inclined conductive frame 28 expands outward under the limitation of the limit block 31, and the limit block 31 expands outward under the guidance of the annular limit block 30. The limit block 31 preferentially transmits a large amount of pressure to the annular airbag 26, so that the annular airbag 26 can be deformed to transmit the pressure.

[0049] In this embodiment, the interior of the fixed caliper body 5 is slidably connected with a piston tube 17 through a slide rail, and the piston tube 17 is attached to one end of the inner brake pad assembly 7. A second brake oil release chamber 36 is opened at one end of the fixed caliper body 5, and the first brake oil release chamber 35 and the second brake oil release chamber 36 are arranged in a connected state. The caliper body is installed inside the first brake oil release chamber 35 and the second brake oil release chamber 36. The caliper body is a hydraulic cylinder body of a hydraulic brake. The caliper body is connected to the fixed caliper body 5 through a sliding pin and can slide back and forth, and the caliper claw in the caliper body is connected to the piston tube 1 7 and the pushing piston 21 clamp the inner brake pad assembly 7 and the outer brake pad assembly 8 during braking to provide a braking driving force. The caliper body is equivalent to a mechanism for assisting in pushing the friction pad, thereby improving the stability of the inner brake pad assembly 7 and the outer brake pad assembly 8 during sliding. The inclined conductive frame 28 is an inclined annular channel. The inclined conductive frame 28 is in an inclined state, so that when the brake oil flows from the second brake oil release chamber 36, due to the inclination of the inner wall of the inclined conductive frame 28, the pressure of the hydraulic oil fully squeezes and expands the inclined conductive frame 28 made of rubber, which helps the inclined conductive frame 28 to fully move upward.

[0050] Example 4

[0051] like Figure 3 - Figure 8 As shown, based on the above-mentioned embodiment 1 or 3, the inner wall of the bolt bidirectional positioning tube 10 is slidably connected with a convergence annular frame 15 through a slide groove, and the interior of the convergence annular frame 15 is slidably connected with an annular convergence block 16, and the annular convergence block 16 and the convergence annular frame 15 are slidably connected between the cavity slide 22 and the brake oil pipe 14. The bolt bidirectional positioning tube 10, the convergence annular frame 15, the cavity slide 22, the annular convergence block 16 and the brake oil pipe 14 are arranged in a sealed state, and one end of the bolt bidirectional positioning tube 10 is fixedly connected with a fitting frame 24, and the fitting frame 24 is fixedly installed at one end of the fixed caliper body 5, and the brake oil pipe 1 4 and the cavity slide 22, so that when the annular convergence block 16 and the convergence annular frame 15 are expanded by external pressure, the annular convergence block 16 and the convergence annular frame 15 slide outward and expand along the brake oil pipe 14 and the cavity slide 22, and the convergence annular frame 15 and the annular convergence block 16 are located at the connection position of the bolt two-way positioning pipe 10 and the brake oil pipe 14 and the hollow protective pipe 13. With the impact of the brake oil, the pipeline connection is easy to loosen and leak, and the convergence annular frame 15 and the annular convergence block 16 expand within the specified range, while increasing the brake oil input, buffering the impact of the brake oil.

[0052] Example 5

[0053] like Figure 6 - Fig.10As shown, based on the above-mentioned embodiment 1 or 4, the inner wall of the bolt bidirectional positioning tube 10 is fixedly connected with a laminated sealing ring 25, and the laminated sealing ring 25 is fixedly installed between the annular convergence block 16 and the convergence annular frame 15. The laminated sealing ring 25 is a multi-S-shaped annular component stacked and crossed, and the interior of the laminated sealing ring 25 is provided with multiple groups of annular interlayers 38, and a multi-layer stacking mechanism is arranged in the interlayer 38. A heat insulation layer is filled in one interlayer 38, and the heat insulation layer is composed of a non-heat-conducting material for the purpose of heat insulation, and an antifreeze layer is filled in another interlayer 38, thereby improving the safety and service life of the brake oil pipe. One end of the laminated sealing ring 25 is fixedly connected with a wave-type receiving frame 37 through a group of interlayers 38. The wave-type receiving frame 37 is wavy and can receive the expansion pressure of the annular convergence block 16 and the convergence annular frame 15 while irregularly transmitting the pressure to the laminated sealing ring 25 area for further buffering.

[0054] In this embodiment, the inner wall of the laminated sealing ring 25 is fixedly connected with a pressure-resistant piston 42, and the outer surface of the pressure-resistant piston 42 is slidably connected with a hollow piston tube 43, one end of the hollow piston tube 43 is fixedly connected with a folding frame 40, and the inside of the folding frame 40 is slidably connected with an annular tube 39, and the inner wall of the folding frame 40 is fixedly connected with a load-bearing spring 41, which is fixedly installed on the outer surface of the annular tube 39. When the wave-type receiving frame 37 transmits external pressure through the inner wall of the laminated sealing ring 25, the inner wall of the laminated sealing ring 25 squeezes the pressure-resistant piston 42 along the hollow active The plug tube 43 slides, and the hollow piston tube 43 stretches outward along the annular tube 39 by squeezing the folding frame 40 under pressure, and the load-bearing spring 41 provides support for the pressure resistance of the folding frame 40 and the restoration of the folding frame 40 to its original state. The sliding friction of the multi-folding frame 40 along the annular tube 39 and the elastic force of the load-bearing spring 41 are used to buffer the impact pressure of the brake oil, and the pressure-resistant piston 42 helps the wave-type receiving frame 37 to transmit the pressure to the annular convergence block 16, so that the convergence annular frame 15 and the annular convergence block 16 shake when they converge, so as to shake off the blocked residual material and prevent the material from solidifying;

[0055] An arched clamping spring sheet is arranged above and below the inner brake block assembly 7 and the outer brake block assembly 8. A small arch is pressed on the bottom plate of the spring sheet to provide an upward clamping force to the inner brake block assembly 7 and the outer brake block assembly 8. A large spring force can be generated through a small amount of deformation. Since the gaps between the inner brake block assembly 7 and the outer brake block assembly 8 and the fixed caliper body 5 are relatively stable, the deformation of the spring sheet is also relatively stable, and the consistency of elastic force between different products is good.

[0056] The spring sheet is used to limit the movable distance between the inner brake pad assembly 7 and the outer brake pad assembly 8 and to prevent the inner brake pad assembly 7 and the outer brake pad assembly 8 from being separated from the interior of the fixed caliper body 5;

[0057] According to the above description, the clamping spring sheet and the inner brake block assembly 7 and the outer brake block assembly 8 are supplemented to fit the actual movement state between the inner brake block assembly 7, the outer brake block assembly 8 and the brake disc 9:

[0058] In the non-braking state, the inner brake pad assembly 7 and the outer brake pad assembly 8 remain relatively stationary under the clamping of the upper and lower spring sheets, that is, the inner brake pad assembly 7 and the outer brake pad assembly 8 have no relative movement relative to the spring sheets and the fixed caliper body 5, and no abnormal collision noise will be generated during the driving of the vehicle (except for abnormally bumpy road conditions), and the upper and lower spring sheets play a limiting role on the inner brake pad assembly 7 and the outer brake pad assembly 8.

[0059] In the braking state, the piston tube 17, the pushing piston 21 and the caliper hook push the inner brake pad assembly 7 and the outer brake pad assembly 8 to move in the direction of clamping the brake disc, and the two ends of the inner brake pad assembly 7 and the outer brake pad assembly 8 slide on the surface of the spring sheet. Since the surface of the spring sheet is relatively smooth and has a high hardness relative to the fixed caliper body 5, the sliding force of the inner brake pad assembly 7 and the outer brake pad assembly 8 can be ensured to be stable and smooth, and the sliding groove is not easy to wear. When the vehicle is moving forward and braking, the convex arc surface of the spring sheet at the lower end of the fixed caliper body 5 limits the inner brake pad assembly 7 and the outer brake pad assembly 8 from moving forward, and the spring sheet supports and prevents the inner brake pad assembly 7 and the outer brake pad assembly 8 from shaking relative to each other. When braking, the inner brake pad assembly 7 and the outer brake pad assembly 8 will not collide or make abnormal noise due to the gap problem. Of course, since the thrust direction of the spring sheet design is consistent with the forward direction, there must be a gap in the backward direction, that is, there will be a collision when braking backward, but usually the backward speed of the vehicle is slow, and the backward working condition is much less than the forward working condition, so it is reasonable to reserve the gap in the backward direction.

[0060] In the brake release state, the piston tube 17 and the pushing piston 21 return to their original positions, and the brake disc 9 rotates to laterally displace the inner brake pad assembly 7 and the outer brake pad assembly 8, pushing the inner brake pad assembly 7 and the outer brake pad assembly 8 back to the state before braking. At this time, the spring sheet clamps the inner brake pad assembly 7 and the outer brake pad assembly 8, so that there is a small gap between the inner brake pad assembly 7, the outer brake pad assembly 8 and the brake disc 9, and at the same time, the inner brake pad assembly 7 and the outer brake pad assembly 8 will not produce abnormal noise due to loose frame shaking, and at the same time limit the sliding distance of the inner brake pad assembly 7 and the outer brake pad assembly 8 to return to their original position, and help the inner brake pad assembly 7 and the outer brake pad assembly 8 to return to their original position.

[0061] The above specific embodiments are only several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A brake caliper integrating driving and IPB parking, comprising a fixed caliper body (5), characterized in that: One end of the fixed caliper body (5) is connected to a bolted bidirectional positioning tube (10) via a bolt, a hollow protective tube (13) for protection is fixedly connected to the outer surface of the bolted bidirectional positioning tube (10) via a mounting groove, and a brake oil pipe (14) for circulating brake oil is fixedly connected to the inner wall of the bolted bidirectional positioning tube (10); One end of the bolt bidirectional positioning tube (10) is fixedly connected to a cavity slide (22), the inner wall of the cavity slide (22) is slidably connected to a sealing mounting frame (23), one end of the sealing mounting frame (23) is fixedly connected to a slide tube (34), one end of the slide tube (34) is threadedly mounted on the outer surface of the cavity slide (22), one end of the slide tube (34) is fixedly connected to a spring assembly (33), one end of the spring assembly (33) away from the slide tube (34) is fixedly connected to a push rod (32), the push rod (32) is fixedly mounted on the surface of the cavity slide (22), and the push rod (32) is slidably connected to the inside of the slide tube (34); An annular airbag (26) is fixedly connected to one end of the sealing mounting frame (23), and an inclined conductive frame (28) is fixedly connected to the oblique lower portion of the annular airbag (26). When the inclined conductive frame (28) expands upward, the inclined conductive frame (28) expands outward under the limit of the limit block (31), and the limit block (31) expands outward under the guidance of the annular limit block (30). The limit block (31) preferentially transmits a large amount of pressure to the annular airbag (26), so that the annular airbag (26) can be deformed to transmit the pressure.

2. The brake caliper based on the integration of driving and IPB parking according to claim 1 is characterized in that: An IPB caliper limit assembly (12) is provided at one end of the fixed caliper body (5), and a hollow sealing frame (11) is fixedly connected to one end of the IPB caliper limit assembly (12). A first dust cover (4) and a second dust cover (6) are provided at the connection between the hollow sealing frame (11) and the two ends of the cylinder port of the fixed caliper body (5). An inner brake block assembly (7) and an outer brake block assembly (8) are slidably connected inside the fixed caliper body (5), and the second dust cover (6) is slidably connected to the inside of the inner brake block assembly (7) and the outer brake block assembly (8).

3. The brake caliper based on the integration of driving and IPB parking according to claim 2 is characterized in that: The outer surface of the hollow sealing frame (11) is provided with an IPB caliper inner plate (3), two sets of pin dustproof bushings (2) are fixedly connected to the two ends of the IPB caliper inner plate (3), the interior of the IPB caliper inner plate (3) is slidably connected with a guide pin shaft (1) through the two sets of pin dustproof bushings (2), and one end of the guide pin shaft (1) passes through the IPB caliper inner plate (3) and is arranged on the outer surface of the fixed caliper body (5).

4. The brake caliper based on the integration of driving and IPB parking according to claim 3 is characterized in that: A limit brake assembly (18) is arranged inside the IPB caliper limit assembly (12), and the limit brake assembly (18) is located inside the hollow sealing frame (11). The number of the inner brake block assemblies (7) and the outer brake block assemblies (8) is multiple, and brake discs (9) are attached between the multiple sets of the inner brake block assemblies (7) and the outer brake block assemblies (8).

5. The brake caliper based on the integration of driving and IPB parking according to claim 4 is characterized in that: The limit brake assembly (18) passes through one end of the fixed caliper body (5) and is fixedly connected to a spring assembly (19); the interior of the fixed caliper body (5) is fixedly connected to a hollow built-in tube assembly (20); one end of the limit brake assembly (18) passes through the hollow built-in tube assembly (20) and is fixedly connected to a push piston (21) through a first brake oil release chamber (35) provided inside the fixed caliper body (5); the push piston (21) is arranged on the outer surface of the inner brake pad assembly (7).

6. The brake caliper based on the integration of driving and IPB parking according to claim 5 is characterized in that: The top end of the inclined conduction frame (28) is fixedly connected to a pushing clamping frame (29), one end of the pushing clamping frame (29) is in contact with the outer surface of the annular airbag (26), an annular limit block (30) is fixedly connected to the inner wall of the pushing clamping frame (29), the annular limit block (30) is arranged in an annular bending state under normal conditions, both ends of the pushing clamping frame (29) are fixedly connected to limit blocks (31), the limit block (31) is fixedly mounted on one end of the annular airbag (26), the interior of the fixed caliper body (5) is fixedly connected to a guide plate (27) via a second brake oil release chamber (36), the other end of the pushing clamping frame (29) is in contact with the outer surface of the guide plate (27).

7. The brake caliper based on the integration of driving and IPB parking according to claim 6 is characterized in that: The interior of the fixed caliper body (5) is slidably connected to a piston tube (17) via a slide rail, the piston tube (17) is fitted to one end of the inner brake pad assembly (7), a second brake oil release chamber (36) is provided at one end of the fixed caliper body (5), the first brake oil release chamber (35) and the second brake oil release chamber (36) are arranged in a communicating state, and the inclined conduction frame (28) is an inclined annular channel.

8. The brake caliper based on the integration of driving and IPB parking according to claim 1 is characterized in that: The inner wall of the bolt bidirectional positioning tube (10) is slidably connected to a convergence annular frame (15) via a slide groove, and the interior of the convergence annular frame (15) is slidably connected to an annular convergence block (16), and the annular convergence block (16) and the convergence annular frame (15) are slidably connected between the cavity slide (22) and the brake oil pipe (14). The bolt bidirectional positioning tube (10), the convergence annular frame (15), the cavity slide (22), the annular convergence block (16) and the brake oil pipe (14) are arranged in a sealed state, and one end of the bolt bidirectional positioning tube (10) is fixedly connected to a fitting frame (24), and the fitting frame (24) is fixedly mounted on one end of the fixed caliper body (5).

9. The brake caliper based on the integration of driving and IPB parking according to claim 8, characterized in that: The inner wall of the bolt bidirectional positioning tube (10) is fixedly connected to a laminated sealing ring (25), and the laminated sealing ring (25) is fixedly installed between the annular convergence block (16) and the convergence annular frame (15). The laminated sealing ring (25) has multiple groups of annular interlayers (38) inside, and one end of the laminated sealing ring (25) is fixedly connected to a wave-type receiving frame (37) through a group of interlayers (38).

10. The brake caliper based on the integration of driving and IPB parking according to claim 9, characterized in that: The inner wall of the laminated sealing ring (25) is fixedly connected to a pressure-resistant piston (42), the outer surface of the pressure-resistant piston (42) is slidably connected to a hollow piston tube (43), one end of the hollow piston tube (43) is fixedly connected to a folding frame (40), the interior of the folding frame (40) is slidably connected to an annular tube (39), the inner wall of the folding frame (40) is fixedly connected to a load-bearing spring (41), and the load-bearing spring (41) is fixedly mounted on the outer surface of the annular tube (39).

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