Bearing wheel front wheel braking mechanism

Abstract

One or more embodiments of the invention provide a front wheel brake mechanism of a bearing wheel. The front wheel brake mechanism comprises a frame, a bracket, a lantern ring, a wheel axle and wheels mounted at two ends of the wheel axle, a bearing pressure conversion structure is arranged on the upper surface of the frame, and a pressure conveying device is arranged in the frame below the bearing pressure conversion structure; four supports are fixed to the two sides of the frame respectively, and a limiting ring is fixedly installed at the position, corresponding to the axle, of the center of the lower surface of the frame and rotationally connected with the axle through a bearing. Through the arrangement of the pressurizing cavity and the hydraulic cavity, the effect of converting the pressure of a bearing object into brake power is achieved during use, and through cooperation of two stamping effects during emergency braking, the stamping efficiency is greatly improved, so that the stamping effect is enhanced, and through cooperation of a brake sleeve and an inner lantern ring which are matched on a brake structure, the stamping efficiency is greatly improved. Therefore, the braking stability of the braking assembly during braking is reduced, and the effect of reducing abrasion during braking is achieved.

Description

Technical Field

[0001] One or more embodiments of the present specification relate to the technical field of brake mechanisms, and in particular, to a front wheel brake mechanism for a load-bearing wheel. Background Art

[0002] The braking methods include oil pressure (passenger car foot brake); mechanical (hand brake); air pressure and vacuum assisted air pressure (truck foot brake); spring energy storage (large truck foot brake and hand brake); exhaust assisted braking (large diesel locomotive); engine idle assisted braking (operation); electromagnetic turbine retarder (large passenger car).

[0003] However, in the prior art, the Chinese invention patent with the patent name: Braking mechanism and application number: 2016112670041, describes that "a button is set to facilitate the driver's operation. By setting a reset mechanism, on the one hand, the reset mechanism can provide sufficient force for the brake pad to make the first friction part contact with the first friction disc, and the second friction part contact with the second friction disc, especially force contact, squeeze each other, so as to generate a large enough friction force to prohibit the first friction disc (i.e., the first rotating shaft) and the second friction disc (i.e., the second rotating shaft) from rotating, and on the other hand, it can play a role in resetting the brake pad from the disengaged position to the engaged position". When this method is used, first of all, for transport vehicles within the factory area, it cannot effectively utilize the weight of the load on the vehicle, and thus cannot meet the requirements of the prior art. Summary of the invention

[0004] In view of this, the purpose of one or more embodiments of the present specification is to provide a front wheel brake mechanism for a load-bearing wheel to solve the problem of reusing the weight of the load in the prior art.

[0005] Based on the above purpose, one or more embodiments of this specification provide a load-bearing front wheel brake mechanism, including a frame, a bracket, a collar and an axle, and wheels installed at both ends of the axle;

[0006] A load-bearing pressure conversion structure is arranged on the upper surface of the frame, and a pressure delivery device is arranged in the frame below the load-bearing pressure conversion structure;

[0007] Four brackets are fixed on both sides of the frame, and the brackets and the collars are rotatably connected to the wheel axle through bearings. A limiting ring is fixedly installed at the center of the lower surface of the frame corresponding to the wheel axle, and the limiting ring is rotatably connected to the wheel axle through bearings;

[0008] A liquid injection cavity is arranged at the center of the lower surface of the frame, and the liquid injection cavity and the bearing pressure conversion structure are interconnected by three channels, and liquid pumps are arranged on the three channels respectively, and a liquid separation cavity is arranged at the bottom of the liquid injection cavity, and hydraulic power is respectively transmitted to the brake assembly through a delivery pipe port and a high-pressure pipe outside the liquid separation cavity;

[0009] Among them, the brake assembly is composed of a propulsion structure and a friction structure.

[0010] The load-bearing pressure conversion structure can convert the pressure of the load into braking power when needed. At the same time, when emergency braking is required during work, the two pressure chambers are pressurized synchronously to achieve the effect of rapid braking.

[0011] Among them, the front axle is used as the braking control, and the rear axle is used as the power output unit and is equipped with corresponding braking equipment. When the vehicle is not carrying heavy objects, the braking equipment is used for braking. When the vehicle is carrying heavy objects, the braking control on the front axle is used for braking, thereby utilizing the weight of the load and reducing the energy consumption of the vehicle.

[0012] Preferably, the bearing pressure conversion structure comprises: a boosting chamber and a hydraulic chamber, a lifting chamber is provided on one side of the upper surface of the frame, a hydraulic chamber is evenly provided on the lower surface of the inner wall of the lifting chamber, the hydraulic chamber is interconnected with the boosting chamber through a pressure conveying device, a bearing plate is fixedly installed at the top of the hydraulic chamber, and an isolation plate is provided on the periphery of the bearing plate;

[0013] Among them, the isolation plate is made of plastic material and is used to isolate dust.

[0014] Preferably, a pressure plate is provided at the top of the inner wall of the boost chamber, and a support column is provided in the frame above the pressure plate;

[0015] Among them, the supporting column adopts an electric telescopic rod.

[0016] Preferably, the pressure delivery device comprises: a liquid hole, which connects the boosting chamber and the hydraulic chamber to each other.

[0017] Preferably, delivery pipes are respectively arranged on both sides of the liquid injection cavity, the delivery pipes on both sides are respectively communicated with the boosting cavity, and a liquid pump is arranged in the middle of the delivery pipes.

[0018] Preferably, mounting grooves are provided inside both ends of the wheel axle, and threaded holes are provided in the mounting grooves at locations corresponding to mounting holes of the wheels.

[0019] Preferably, the propulsion structure comprises: a limit ring, a plurality of connecting rods are fixedly installed on both sides of the limit ring, a brake control disc is fixedly installed on the separated ends of the connecting rods, six grooves are evenly arranged on the separated surfaces of the brake control disc, a metal collar is rotatably installed in the groove through an axial hole and a pin shaft, a hydraulic telescopic rod is fixedly installed on one side of the metal collar, and one end of the hydraulic telescopic rod is interconnected with the high-pressure pipe;

[0020] The hydraulic telescopic rod squeezes the friction structure through the pressure provided by the hydraulic oil transported by the high-pressure pipe.

[0021] Among them, the metal ring rotates around the pin shaft, and when in use, it rotates at a certain angle in the forward direction during the braking process, so that it has a certain degree of rotational freedom during the braking process. During normal braking, it can reduce the excessive wear caused by the non-fitting of the friction surface due to sudden friction during the braking process, and the slow contact before fitting can also generate heat through the slow friction of the friction surface, thereby enhancing the effect of more stability during subsequent braking.

[0022] Preferably, the friction structure comprises: a brake sleeve and an inner ring, wherein the inner ring is fixedly mounted on the periphery of the wheel axle, and the wheel axle is in a truncated cone-shaped structure in cross-section, and the outer wall of the inner ring and the inner wall of the brake sleeve are in contact and friction with each other.

[0023] Preferably, high-pressure pipe holes are evenly formed on adjacent surfaces of the brake control disc, and the high-pressure pipe passes through the high-pressure pipe holes and is connected to the hydraulic telescopic rod.

[0024] Preferably, U-shaped holes are evenly formed on adjacent surfaces of the brake sleeve corresponding to the hydraulic telescopic rod, and a U-shaped ring is provided at one end of the hydraulic telescopic rod.

[0025] From the above description, it can be seen that one or more embodiments of the present specification provide a load-bearing wheel front wheel brake mechanism, which, by setting a booster chamber and a hydraulic chamber, can realize the function of converting the pressure of the load into braking power when in use, and by the cooperation of two stamping effects during emergency braking, the stamping efficiency is greatly increased, thereby enhancing the stamping effect, and the matching brake sleeve and inner ring on the brake structure can reduce the braking stability of the brake assembly during braking, thereby reducing the wear during braking. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate one or more embodiments of the present specification or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only one or more embodiments of the present specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 It is a schematic diagram of the first overall three-dimensional structure of the present invention;

[0028] Figure 2 It is a schematic diagram of a first three-dimensional cross-sectional structure of the present invention;

[0029] Figure 3 It is a schematic diagram of a second three-dimensional cross-sectional structure of the present invention;

[0030] Figure 4 It is a schematic diagram of the three-dimensional structure of the axle and brake assembly of the present invention;

[0031] Figure 5 It is a schematic cross-sectional view of the wheel axle and brake assembly of the present invention;

[0032] Figure 6 For the present invention Figure 5 A schematic diagram of the enlarged structure of the middle A area;

[0033] Figure 7 It is a schematic diagram of the cross-sectional structure of the propulsion structure of the present invention;

[0034] Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged structure of the middle B area;

[0035] Fig. 9 It is a schematic diagram of the second overall three-dimensional structure of the present invention.

[0036] In the figure: 1. frame; 11. load-bearing plate; 12. isolation plate; 13. bracket; 14. collar; 15. axle; 16. wheel; 17. pressure plate; 18. boost chamber; 19. support column; 110. mounting groove; 111. threaded hole; 2. brake control disc; 21. groove; 22. brake sleeve; 23. limit ring; 24. bearing; 25. inner collar; 26. high-pressure pipe hole; 27. shaft hole; 28. hydraulic telescopic rod; 29. ​​connecting rod; 210. metal collar; 211. U-shaped ring; 212. U-shaped hole; 3. lifting chamber; 31. hydraulic chamber; 32. liquid hole; 4. injection chamber; 41. liquid distribution chamber; 42. delivery pipe mouth; 43. liquid pump; 44. delivery pipe. DETAILED DESCRIPTION

[0037] In order to make the objectives, technical solutions and advantages of the present disclosure more clearly understood, the present disclosure is further described in detail below in conjunction with specific embodiments.

[0038] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in one or more embodiments of this specification should be understood by people with ordinary skills in the field to which this disclosure belongs. The "first", "second" and similar words used in one or more embodiments of this specification do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0039] Embodiment 1:

[0040] like Figure 1-9 As shown, a load-bearing front wheel brake mechanism is provided, comprising a frame 1, a bracket 13, a collar 14 and an axle 15, and wheels 16 mounted at both ends of the axle 15;

[0041] A load-bearing pressure conversion structure is provided on the upper surface of the frame 1, and a pressure delivery device is provided in the frame 1 below the load-bearing pressure conversion structure;

[0042] Four brackets 13 are fixed on both sides of the frame 1, and the brackets 13 and the collars 14 are rotatably connected to the axle 15 through bearings. A limiting ring 23 is fixedly installed at the center of the lower surface of the frame 1 corresponding to the axle 15, and the limiting ring 23 is rotatably connected to the axle 15 through bearings 24.

[0043] A liquid injection cavity 4 is arranged at the center of the lower surface of the frame 1. The liquid injection cavity 4 and the bearing pressure conversion structure are interconnected by three channels, and liquid pumps 43 are arranged on the three channels respectively. A liquid separation cavity 41 is arranged at the bottom of the liquid injection cavity 4. The liquid separation cavity 41 transmits hydraulic power to the brake assembly through a delivery pipe port 42 and a high-pressure pipe respectively.

[0044] Among them, the brake assembly is composed of a propulsion structure and a friction structure.

[0045] The load-bearing pressure conversion structure can convert the pressure of the load into braking power when needed. At the same time, when emergency braking is required during work, the two pressure chambers are pressurized synchronously to achieve the effect of rapid braking.

[0046] The pressure delivery device includes a liquid hole 32 , which connects the boosting chamber 18 and the hydraulic chamber 31 to each other.

[0047] Delivery pipes 44 are respectively arranged on both sides of the liquid injection chamber 4 . The delivery pipes 44 on both sides are respectively connected with the boosting chamber 18 , and a liquid pump 43 is arranged in the middle of the delivery pipes 44 .

[0048] The liquid pump 43 outputs hydraulic oil downward when braking, and extracts the hydraulic oil in the injection chamber 4 when removing the brake. After the extraction is completed, it is sealed to prevent the leakage of oil from the upper and lower parts.

[0049] The two ends of the wheel axle 15 are provided with mounting grooves 110 , and threaded holes 111 are provided in the mounting grooves 110 at locations corresponding to the mounting holes of the wheels.

[0050] Among them, the front wheel axle 15 is used as the braking control, and the rear wheel axle 15 is used as the power output unit and is equipped with corresponding braking equipment. When the vehicle is not carrying heavy objects, the braking equipment is used for braking. When the vehicle is carrying heavy objects, the braking control on the front wheel axle 15 is used to perform braking, thereby utilizing the weight of the load and reducing the energy consumption of the vehicle.

[0051] Embodiment 2:

[0052] like Figure 1-9 As shown, a load-bearing front wheel brake mechanism is provided, comprising a frame 1, a bracket 13, a collar 14 and an axle 15, and wheels 16 mounted at both ends of the axle 15;

[0053] A load-bearing pressure conversion structure is provided on the upper surface of the frame 1, and a pressure delivery device is provided in the frame 1 below the load-bearing pressure conversion structure;

[0054] Four brackets 13 are fixed on both sides of the frame 1, and the brackets 13 and the collars 14 are rotatably connected to the axle 15 through bearings. A limiting ring 23 is fixedly installed at the center of the lower surface of the frame 1 corresponding to the axle 15, and the limiting ring 23 is rotatably connected to the axle 15 through bearings 24.

[0055] A liquid injection cavity 4 is arranged at the center of the lower surface of the frame 1. The liquid injection cavity 4 and the bearing pressure conversion structure are interconnected by three channels, and liquid pumps 43 are arranged on the three channels respectively. A liquid separation cavity 41 is arranged at the bottom of the liquid injection cavity 4. The liquid separation cavity 41 transmits hydraulic power to the brake assembly through a delivery pipe port 42 and a high-pressure pipe respectively.

[0056] Among them, the brake assembly is composed of a propulsion structure and a friction structure.

[0057] The load-bearing pressure conversion structure can convert the pressure of the load into braking power when needed. At the same time, when emergency braking is required during work, the two pressure chambers are pressurized synchronously to achieve the effect of rapid braking.

[0058] The pressure delivery device includes a liquid hole 32 , which connects the boosting chamber 18 and the hydraulic chamber 31 to each other.

[0059] Delivery pipes 44 are respectively arranged on both sides of the liquid injection chamber 4 . The delivery pipes 44 on both sides are respectively connected with the boosting chamber 18 , and a liquid pump 43 is arranged in the middle of the delivery pipes 44 .

[0060] The liquid pump 43 outputs hydraulic oil downward when braking, and extracts the hydraulic oil in the injection chamber 4 when removing the brake. After the extraction is completed, it is sealed to prevent the leakage of oil from the upper and lower parts.

[0061] The two ends of the wheel axle 15 are provided with mounting grooves 110 , and threaded holes 111 are provided in the mounting grooves 110 at locations corresponding to the mounting holes of the wheels.

[0062] The front axle 15 is used for brake control, and the rear axle 15 is used as a power output unit.

[0063] The bearing pressure conversion structure includes: a boosting chamber 18 and a hydraulic chamber 31. A lifting chamber 3 is opened on one side of the upper surface of the frame 1. The hydraulic chamber 31 is evenly arranged on the lower surface of the inner wall of the lifting chamber 3. The hydraulic chamber 31 is interconnected with the boosting chamber 18 through a pressure conveying device. A bearing plate 11 is fixedly installed at the top of the hydraulic chamber 31, and an isolation plate 12 is arranged on the periphery of the bearing plate 11.

[0064] The isolation plate 12 is made of plastic material and is used to isolate dust.

[0065] A pressure plate 17 is provided at the top of the inner wall of the boost chamber 18, and a support column 19 is provided in the vehicle frame 1 above the pressure plate 17;

[0066] Among them, the support column 19 is an electric telescopic rod.

[0067] Among them, a high-pressure liquid pump is arranged at the bottom end of the hydraulic cavity 31, so that it can cooperate with the pressure to deliver the hydraulic oil more stably under emergency conditions. Combined with the setting of the support column 19, the emergency hydraulic delivery effect during braking is greatly increased, thereby enhancing the stable emergency braking effect.

[0068] However, during normal braking, the hydraulic fluid is delivered through the high-pressure fluid pump matched with the hydraulic chamber 31, and the hydraulic oil is delivered by controlling the opening amount of the corresponding fluid pump 43 according to the required braking intensity.

[0069] Embodiment three:

[0070] like Figure 1-9 As shown, a load-bearing front wheel brake mechanism is provided, comprising a frame 1, a bracket 13, a collar 14 and an axle 15, and wheels 16 mounted at both ends of the axle 15;

[0071] A load-bearing pressure conversion structure is provided on the upper surface of the frame 1, and a pressure delivery device is provided in the frame 1 below the load-bearing pressure conversion structure;

[0072] Four brackets 13 are fixed on both sides of the frame 1, and the brackets 13 and the collars 14 are rotatably connected to the axle 15 through bearings. A limiting ring 23 is fixedly installed at the center of the lower surface of the frame 1 corresponding to the axle 15, and the limiting ring 23 is rotatably connected to the axle 15 through bearings 24.

[0073] A liquid injection cavity 4 is arranged at the center of the lower surface of the frame 1. The liquid injection cavity 4 and the bearing pressure conversion structure are interconnected by three channels, and liquid pumps 43 are arranged on the three channels respectively. A liquid separation cavity 41 is arranged at the bottom of the liquid injection cavity 4. The liquid separation cavity 41 transmits hydraulic power to the brake assembly through a delivery pipe port 42 and a high-pressure pipe respectively.

[0074] Among them, the brake assembly is composed of a propulsion structure and a friction structure.

[0075] The load-bearing pressure conversion structure can convert the pressure of the load into braking power when needed. At the same time, when emergency braking is required during work, the two pressure chambers are pressurized synchronously to achieve the effect of rapid braking.

[0076] The pressure delivery device includes a liquid hole 32 , which connects the boosting chamber 18 and the hydraulic chamber 31 to each other.

[0077] Delivery pipes 44 are respectively arranged on both sides of the liquid injection chamber 4 . The delivery pipes 44 on both sides are respectively connected with the boosting chamber 18 , and a liquid pump 43 is arranged in the middle of the delivery pipes 44 .

[0078] The liquid pump 43 outputs hydraulic oil downward when braking, and extracts the hydraulic oil in the injection chamber 4 when removing the brake. After the extraction is completed, it is sealed to prevent the leakage of oil from the upper and lower parts.

[0079] The two ends of the wheel axle 15 are provided with mounting grooves 110 , and threaded holes 111 are provided in the mounting grooves 110 at locations corresponding to the mounting holes of the wheels.

[0080] The front axle 15 is used for brake control, and the rear axle 15 is used as a power output unit.

[0081] The bearing pressure conversion structure includes: a boosting chamber 18 and a hydraulic chamber 31. A lifting chamber 3 is opened on one side of the upper surface of the frame 1. The hydraulic chamber 31 is evenly arranged on the lower surface of the inner wall of the lifting chamber 3. The hydraulic chamber 31 is interconnected with the boosting chamber 18 through a pressure conveying device. A bearing plate 11 is fixedly installed at the top of the hydraulic chamber 31, and an isolation plate 12 is arranged on the periphery of the bearing plate 11.

[0082] The isolation plate 12 is made of plastic material and is used to isolate dust.

[0083] A pressure plate 17 is provided at the top of the inner wall of the boost chamber 18, and a support column 19 is provided in the vehicle frame 1 above the pressure plate 17;

[0084] Among them, the support column 19 is an electric telescopic rod.

[0085] Among them, a high-pressure liquid pump is arranged at the bottom end of the hydraulic cavity 31, so that it can cooperate with the pressure to deliver the hydraulic oil more stably under emergency conditions. Combined with the setting of the support column 19, the emergency hydraulic delivery effect during braking is greatly increased, thereby enhancing the stable emergency braking effect.

[0086] However, during normal braking, the hydraulic fluid is delivered through the high-pressure fluid pump matched with the hydraulic chamber 31, and the hydraulic oil is delivered by controlling the opening amount of the corresponding fluid pump 43 according to the required braking intensity.

[0087] The propulsion structure comprises: a limit ring 23, a plurality of connecting rods 29 are fixedly installed on both sides of the limit ring 23, the brake control disc 2 is fixedly installed on the separated ends of the connecting rods 29, six grooves 21 are evenly arranged on the separated surfaces of the brake control disc 2, a metal collar 210 is rotatably installed in the groove 21 through an axial hole 27 and a pin shaft, a hydraulic telescopic rod 28 is fixedly installed on one side of the metal collar 210, and one end of the hydraulic telescopic rod 28 is connected to the high-pressure pipe;

[0088] The hydraulic telescopic rod 28 squeezes the friction structure through the pressure provided by the hydraulic oil transported by the high-pressure pipe.

[0089] Among them, the metal ring 210 rotates around the pin shaft, and when in use, it rotates at a certain angle in the forward direction during the braking process, so that it has a certain degree of rotational freedom during the braking process. During normal braking, it can reduce the excessive wear caused by the non-fitting of the friction surface caused by the sudden friction process during braking, and the slow contact before fitting can also generate heat through the slow friction of the friction surface, thereby enhancing the effect of more stability during subsequent braking.

[0090] Embodiment 4:

[0091] like Figure 1-9 As shown, a load-bearing front wheel brake mechanism is provided, comprising a frame 1, a bracket 13, a collar 14 and an axle 15, and wheels 16 mounted at both ends of the axle 15;

[0092] A load-bearing pressure conversion structure is provided on the upper surface of the frame 1, and a pressure delivery device is provided in the frame 1 below the load-bearing pressure conversion structure;

[0093] Four brackets 13 are fixed on both sides of the frame 1, and the brackets 13 and the collars 14 are rotatably connected to the axle 15 through bearings. A limiting ring 23 is fixedly installed at the center of the lower surface of the frame 1 corresponding to the axle 15, and the limiting ring 23 is rotatably connected to the axle 15 through bearings 24.

[0094] A liquid injection cavity 4 is arranged at the center of the lower surface of the frame 1. The liquid injection cavity 4 and the bearing pressure conversion structure are interconnected by three channels, and liquid pumps 43 are arranged on the three channels respectively. A liquid separation cavity 41 is arranged at the bottom of the liquid injection cavity 4. The liquid separation cavity 41 transmits hydraulic power to the brake assembly through a delivery pipe port 42 and a high-pressure pipe respectively.

[0095] Among them, the brake assembly is composed of a propulsion structure and a friction structure.

[0096] The load-bearing pressure conversion structure can convert the pressure of the load into braking power when needed. At the same time, when emergency braking is required during work, the two pressure chambers are pressurized synchronously to achieve the effect of rapid braking.

[0097] The pressure delivery device includes a liquid hole 32 , which connects the boosting chamber 18 and the hydraulic chamber 31 to each other.

[0098] Delivery pipes 44 are respectively arranged on both sides of the liquid injection chamber 4 . The delivery pipes 44 on both sides are respectively connected with the boosting chamber 18 , and a liquid pump 43 is arranged in the middle of the delivery pipes 44 .

[0099] The liquid pump 43 outputs hydraulic oil downward when braking, and extracts the hydraulic oil in the injection chamber 4 when removing the brake. After the extraction is completed, it is sealed to prevent the leakage of oil from the upper and lower parts.

[0100] The two ends of the wheel axle 15 are provided with mounting grooves 110 , and threaded holes 111 are provided in the mounting grooves 110 at locations corresponding to the mounting holes of the wheels.

[0101] The front axle 15 is used for brake control, and the rear axle 15 is used as a power output unit.

[0102] The bearing pressure conversion structure includes: a boosting chamber 18 and a hydraulic chamber 31. A lifting chamber 3 is opened on one side of the upper surface of the frame 1. The hydraulic chamber 31 is evenly arranged on the lower surface of the inner wall of the lifting chamber 3. The hydraulic chamber 31 is interconnected with the boosting chamber 18 through a pressure conveying device. A bearing plate 11 is fixedly installed at the top of the hydraulic chamber 31, and an isolation plate 12 is arranged on the periphery of the bearing plate 11.

[0103] The isolation plate 12 is made of plastic material and is used to isolate dust.

[0104] A pressure plate 17 is provided at the top of the inner wall of the boost chamber 18, and a support column 19 is provided in the vehicle frame 1 above the pressure plate 17;

[0105] Among them, the support column 19 is an electric telescopic rod.

[0106] Among them, a high-pressure liquid pump is arranged at the bottom end of the hydraulic cavity 31, so that it can cooperate with the pressure to deliver the hydraulic oil more stably under emergency conditions. Combined with the setting of the support column 19, the emergency hydraulic delivery effect during braking is greatly increased, thereby enhancing the stable emergency braking effect.

[0107] However, during normal braking, the hydraulic fluid is delivered through the high-pressure fluid pump matched with the hydraulic chamber 31, and the hydraulic oil is delivered by controlling the opening amount of the corresponding fluid pump 43 according to the required braking intensity.

[0108] The propulsion structure comprises: a limit ring 23, a plurality of connecting rods 29 are fixedly installed on both sides of the limit ring 23, the brake control disc 2 is fixedly installed on the separated ends of the connecting rods 29, six grooves 21 are evenly arranged on the separated surfaces of the brake control disc 2, a metal collar 210 is rotatably installed in the groove 21 through an axial hole 27 and a pin shaft, a hydraulic telescopic rod 28 is fixedly installed on one side of the metal collar 210, and one end of the hydraulic telescopic rod 28 is connected to the high-pressure pipe;

[0109] The hydraulic telescopic rod 28 squeezes the friction structure through the pressure provided by the hydraulic oil transported by the high-pressure pipe.

[0110] Among them, the metal ring 210 rotates around the pin shaft, and when in use, it rotates at a certain angle in the forward direction during the braking process, so that it has a certain degree of rotational freedom during the braking process. During normal braking, it can reduce the excessive wear caused by the non-fitting of the friction surface caused by the sudden friction process during braking, and the slow contact before fitting can also generate heat through the slow friction of the friction surface, thereby enhancing the effect of more stability during subsequent braking.

[0111] The friction structure includes: a brake sleeve 22 and an inner ring 25. The inner ring 25 is fixedly installed on the periphery of the wheel axle 15, and the wheel axle 15 is a truncated cone structure in cross-section. The outer wall of the inner ring 25 and the inner wall of the brake sleeve 22 are in contact and friction with each other.

[0112] The outer wall of the brake sleeve 22 and the inner wall of the inner ring 25 are matched with each other.

[0113] The adjacent surfaces of the brake control disc 2 are evenly provided with high-pressure pipe holes 26 , and the high-pressure pipe passes through the high-pressure pipe holes 26 and is connected to the hydraulic telescopic rod 28 .

[0114] The hydraulic oil delivered by the high-pressure pipe propels the hydraulic telescopic rod 28 to advance and retreat it.

[0115] U-shaped holes 212 are evenly formed on adjacent surfaces of the brake sleeve 22 corresponding to the hydraulic telescopic rod 28 , and a U-shaped ring is provided at one end of the hydraulic telescopic rod 28 .

[0116] When in use, the brake sleeve 22 is provided with telescopic power by the hydraulic telescopic rod 28, so that the brake sleeve 22 and the inner sleeve ring 25 rub against each other to achieve a braking effect.

[0117] Working principle: through the cooperation of the boost chamber 18 and the hydraulic chamber 31, the exchange of hydraulic oil is realized, and the use of the injection chamber 4 allows the oil pressure to be evenly transmitted to the hydraulic telescopic rod 28 for braking, so that it pushes the brake sleeve 22 forward. Under the advancement of the brake sleeve 22, its inner wall contacts with the inner ring 25 to generate friction. During the advancement process, the metal ring 210 rotates around the pin shaft. During use, it rotates at a certain angle in the forward direction during the braking process, so that it has a certain degree of rotational freedom during the braking process. During normal braking, it reduces the excessive wear caused by the non-fitting of the friction surface caused by the sudden friction process during the braking process, and the slow contact before the fitting can also generate heat by the slow friction of the friction surface, thereby enhancing the use of more stable effect for subsequent braking. When emergency braking is required, the high-pressure liquid pump and the support column 19 work simultaneously, and the oil pumps at the three oil input ports of the injection chamber 4 are turned on at the same time to achieve the effect of rapid stamping, thereby achieving the effect of rapid braking.

[0118] While the disclosure has been described in conjunction with specific embodiments thereof, many alternatives, modifications and variations of these embodiments will be apparent to those skilled in the art in light of the foregoing description.

[0119] One or more embodiments of this specification are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of one or more embodiments of this specification should be included in the scope of protection of this disclosure.

Claims

1. A load-bearing front wheel brake mechanism, comprising a frame (1), a bracket (13), a collar (14) and an axle (15), and wheels (16) mounted at both ends of the axle (15), characterized in that: A load-bearing pressure conversion structure is arranged on the upper surface of the frame (1), and a pressure conveying device is arranged inside the frame (1) below the load-bearing pressure conversion structure; Four brackets (13) are respectively fixed on both sides of the frame (1), and the brackets (13) and the collars (14) are rotatably connected to the wheel axle (15) via bearings; a limiting ring (23) is fixedly installed at the center of the lower surface of the frame (1) corresponding to the wheel axle (15), and the limiting ring (23) is rotatably connected to the wheel axle (15) via bearings (24); A liquid injection cavity (4) is arranged at the center of the lower surface of the vehicle frame (1), the liquid injection cavity (4) and the bearing pressure conversion structure are interconnected by three channels, and liquid pumps (43) are respectively arranged on the three channels, a liquid separation cavity (41) is arranged at the bottom end of the liquid injection cavity (4), and hydraulic power is respectively transmitted to the brake assembly through a delivery pipe port (42) and a high-pressure pipe outside the liquid separation cavity (41); Among them, the brake assembly is composed of a propulsion structure and a friction structure.

2. A load-bearing front wheel brake mechanism according to claim 1, characterized in that: The bearing pressure conversion structure comprises: A boost chamber (18) and a hydraulic chamber (31); a lifting chamber (3) is provided on one side of the upper surface of the frame (1); a hydraulic chamber (31) is evenly arranged on the lower surface of the inner wall of the lifting chamber (3); the hydraulic chamber (31) is interconnected with the boost chamber (18) through a pressure conveying device; a bearing plate (11) is fixedly installed at the top of the hydraulic chamber (31), and an isolation plate (12) is arranged on the periphery of the bearing plate (11); The isolation plate (12) is made of plastic material and is used to isolate dust.

3. A load-bearing front wheel brake mechanism according to claim 2, characterized in that: A pressure plate (17) is provided at the top end of the inner wall of the boost chamber (18), and a support column (19) is provided in the vehicle frame (1) above the pressure plate (17); Wherein, the support column (19) is selected from electric telescopic rods.

4. A load-bearing front wheel brake mechanism according to claim 2, characterized in that: The pressure delivery device comprises: A liquid hole (32), wherein the liquid hole (32) connects the pressure-increasing chamber (18) and the hydraulic chamber (31) to each other.

5. The front wheel brake mechanism of the load-bearing wheel according to claim 1, characterized in that: Delivery pipes (44) are respectively arranged on both sides of the liquid injection chamber (4), the delivery pipes (44) on both sides are respectively connected to the boosting chamber (18), and a liquid pump (43) is arranged in the middle of the delivery pipe (44).

6. A load-bearing front wheel brake mechanism according to claim 1, characterized in that: Mounting grooves (110) are provided inside the two ends of the wheel axle (15), and threaded holes (111) are provided in the mounting grooves (110) at locations corresponding to mounting holes of the wheels.

7. A load-bearing front wheel brake mechanism according to claim 1, characterized in that: The propulsion structure comprises: A limiting ring (23), a plurality of connecting rods (29) are fixedly installed on both sides of the limiting ring (23), a brake control disc (2) is fixedly installed on the separated ends of the connecting rods (29), six grooves (21) are evenly arranged on the separated surfaces of the brake control disc (2), a metal ring (210) is rotatably installed in the groove (21) through an axial hole (27) and a pin shaft, a hydraulic telescopic rod (28) is fixedly installed on one side of the metal ring (210), and one end of the hydraulic telescopic rod (28) is connected to a high-pressure pipe; The hydraulic telescopic rod (28) squeezes the friction structure through the pressure provided by the hydraulic oil transported by the high-pressure pipe.

8. A load-bearing front wheel brake mechanism according to claim 7, characterized in that: The friction structure comprises: A brake sleeve (22) and an inner ring (25), wherein the inner ring (25) is fixedly mounted on the periphery of the wheel axle (15), and the wheel axle (15) is in a truncated cone-shaped structure in cross-section, and the outer wall of the inner ring (25) and the inner wall of the brake sleeve (22) are in contact and friction with each other.

9. The front wheel brake mechanism of the load-bearing wheel according to claim 7, characterized in that: High-pressure pipe holes (26) are evenly arranged on adjacent surfaces of the brake control disc (2), and the high-pressure pipe passes through the high-pressure pipe hole (26) and is connected to the hydraulic telescopic rod (28).

10. The front wheel brake mechanism of the load-bearing wheel according to claim 8, characterized in that: U-shaped holes (212) are evenly arranged at adjacent surfaces of the brake sleeve (22) corresponding to the hydraulic telescopic rod (28), and a U-shaped ring is arranged at one end of the hydraulic telescopic rod (28).

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