阅读说明：本技术 一种新能源电动车桥 (New forms of energy electric axle ) 是由 王青强 刘建峰 于 2021-07-29 设计创作，主要内容包括：本发明涉及机动车车桥技术领域,具体为一种新能源电动车桥,包括车桥主轴,所述车桥主轴的一侧固定连接有刹车盘,所述车桥主轴的外表面通过轴承活动连接有车桥外壳,所述车桥外壳靠近刹车盘的一侧右端固定连接有制动钳支架,所述制动钳支架的后端外表面上下两端对称固定连接有两根滑动销。本发明通过设置摩擦机构,利用摩擦片与刹车盘相互接触从而实现对车辆犹如减速的目的,并通过设置前刹车片与后刹车片对车辆进行紧急制动,由于车辆减速前刹车片以及后刹车片不与刹车盘发生接触,从而对前刹车片以及后刹车片进行保护,降低了对其进行更换的频率,从而减少了使用者的使用成本,同时减少了操作人员的维修时间。(The invention relates to the technical field of vehicle axles, in particular to a new energy electric vehicle axle, which comprises a vehicle axle main shaft, wherein one side of the vehicle axle main shaft is fixedly connected with a brake disc, the outer surface of the vehicle axle main shaft is movably connected with a vehicle axle shell through a bearing, the right end of one side of the vehicle axle shell, which is close to the brake disc, is fixedly connected with a brake caliper bracket, and the upper end and the lower end of the outer surface of the rear end of the brake caliper bracket are symmetrically and fixedly connected with two sliding pins. The friction mechanism is arranged, the friction plate is contacted with the brake disc to achieve the purpose of decelerating the vehicle, the front brake pad and the rear brake pad are arranged to brake the vehicle emergently, and the front brake pad and the rear brake pad are protected due to the fact that the front brake pad and the rear brake pad are not contacted with the brake disc during vehicle deceleration, the frequency of replacing the front brake pad and the rear brake pad is reduced, the use cost of a user is reduced, and the maintenance time of an operator is reduced.)

1. The utility model provides an electronic axle of new forms of energy, includes axle main shaft (1), its characterized in that: a brake disc (11) is fixedly connected to one side of the axle spindle (1), an axle shell (12) is movably connected to the outer surface of the axle spindle (1) through a bearing, a brake caliper support (13) is fixedly connected to the right end of one side, close to the brake disc (11), of the axle shell (12), two sliding pins (14) are symmetrically and fixedly connected to the upper end and the lower end of the outer surface of the rear end of the brake caliper support (13), a fixing plate (15) is fixedly connected to the rear end of each sliding pin (14), a first spring (16) is sleeved on one side, close to the fixing plate (15), of the annular outer surface of each sliding pin (14), the rear end of each first spring (16) is fixedly connected with the fixing plate (15), a brake shell (17) is fixedly connected to the front end of each first spring (16), and each brake shell (17) is slidably connected with the brake caliper support (13) through the corresponding sliding pin (14), the brake disc is characterized in that a piston (18) is movably connected to the position, close to the rear end, in the brake shell (17), an oil inlet pipe (19) is fixedly connected to the outer surface of the rear end of the brake shell (17), a rear brake pad (10) is fixedly connected to the front end of the piston (18), a front brake pad (111) is fixedly connected to the position, located in front of the rear brake pad (10), of the inner surface of the brake shell (17), the edge part of the right side of the brake disc (11) is located between the front brake pad (111) and the rear brake pad (10), and a friction mechanism (2) is movably connected to the inner part of one side, close to the brake disc (11), of the rear brake pad (10);

the friction mechanism (2) comprises a movable groove (21), a friction plate (22), a sliding groove (23), a fixed rod (24) and a second spring (25), the movable groove (21) is arranged on the outer surface of one side of the rear brake block (10) close to the brake disc (11), a friction plate (22) is movably connected inside the movable groove (21), a plurality of sliding grooves (23) are arranged inside the friction plate (22), a fixed rod (24) is movably connected inside the sliding groove (23), the rear end of the fixed rod (24) penetrates into the rear brake block (10) and is fixedly connected with the rear brake block (10), a second spring (25) is sleeved on the annular outer surface of the fixed rod (24), the rear end of the second spring (25) is movably connected with the fixing rod (24), and the front end of the second spring (25) is fixedly connected with the friction plate (22).

2. The new energy electric axle according to claim 1, characterized in that: the rear end fixedly connected with screw rod (26) of dead lever (24), threaded connection between the annular surface of screw rod (26) and back brake block (10), the front end external surface fixedly connected with limiting plate (27) of dead lever (24), the cross recess has been seted up to the front end of limiting plate (27), logical groove (28) have been seted up to the position that the inside of friction disc (22) is located spout (23) front end.

3. The new energy electric axle according to claim 2, characterized in that: the utility model discloses a fixed pole, including dead lever (24), annular surface fixed connection of dead lever (24) has solid fixed ring (29), the front end surface swing joint of solid fixed ring (29) has pivot (20), the front end fixedly connected with connecting plate (211) of pivot (20), the front end and the second spring (25) fixed connection of connecting plate (211), through pivot (20) swing joint between second spring (25) and dead lever (24).

4. The new energy electric axle according to claim 3, characterized in that: the diameter of the limiting plate (27) is the same as that of the sliding chute (23), the inner diameter of an opening at the rear end of the sliding chute (23) is the same as that of the fixing rod (24), and the diameter of the limiting plate (27) is larger than that of the fixing rod (24).

5. The new energy electric axle according to claim 1, characterized in that: the outer surface edge positions of the front end and the rear end of the brake disc (11) are fixedly connected with a protection mechanism (3);

the protection mechanism (3) comprises two friction rings (31) and a heat insulation plate (32), the friction rings (31) are fixedly connected to the outer surface edge positions of the front end and the rear end of the brake disc (11) through a plurality of screws, and the heat insulation plate (32) is arranged between the brake disc (11) and the friction rings (31).

6. The new energy electric axle according to claim 5, characterized in that: a plurality of first radiating grooves (33) are formed in the position, close to the heat insulation plate (32), of the annular outer surface of the friction ring (31), and a plurality of second radiating grooves (34) are formed in the brake disc (11).

Technical Field

The invention relates to the technical field of vehicle axles of motor vehicles, in particular to a new energy electric vehicle axle.

Background

The automobile axle (also called as axle) is connected with the frame (or the bearing type automobile body) through the suspension, and wheels are arranged at the two ends of the automobile axle. The axle is used for bearing the load of the automobile and maintaining the normal running of the automobile on the road. The axle can be integral like a huge barbell, and both ends support the vehicle body through a suspension system, so the integral axle is usually matched with a non-independent suspension; the axle can also be disconnected, like two umbrellas are inserted at the two sides of the vehicle body, and then the vehicle body is supported by the suspension system respectively, so that the disconnected axle is matched with the independent suspension;

the good brake system is a key factor for determining driving safety, at present, the brake system of a motor vehicle generally adopts a brake mode that a brake pad rubs the side edge of a brake disc, namely, a brake pedal on the vehicle is respectively connected with a brake part of an axle, and the brake pedal drives the brake pad to stop the rotation of the brake disc on the axle during braking.

Chinese patent discloses a two brake caliper axles of disc, and patent application number is CN202021764731.0, including axletree, braking axle, brake disc, ball bearing, spindle nose nut and axle head lid, the brake disc is fixed in on the axletree through ball bearing, the spindle nose nut is fixed in on the axletree outside ball bearing through threaded connection, the external screw thread of axle head lid is connected with the internal thread of brake disc. The outer side of the brake disc is fixed with a brake pad, and the outer side of the brake pad is provided with an upper brake caliper and a lower brake caliper which are circular arc-shaped and used for braking; the support is fixed on the axle, the supporting plate is fixed at one end of the support, the guide plate is fixed on the supporting plate, and the first guide hole and the second guide hole are formed in the guide plate.

Above-mentioned contrast patent is through setting up brake caliper and lower brake caliper, increase the area of contact with the brake block during braking, increase brake efficiency, reduce the braking distance, the brake performance has been improved, thereby the security that the vehicle travel has been increased, but because vehicle braking system makes the brake disc stall by the huge frictional force that brake disc and brake block laminated production each other, thereby realize the purpose of vehicle braking, brake disc and brake block can produce wearing and tearing because the friction, in order to guarantee braking system's normal operating, need regularly change brake disc and brake block, thereby use cost has been increased, compare in the brake disc, the wearing and tearing take place more easily for the brake block, change frequency is higher, user's use cost has been increased, operating personnel's maintenance duration has been increased simultaneously.

Therefore, a new energy electric axle is provided.

Disclosure of Invention

The invention aims to provide a new energy electric axle to solve the problems in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: the brake device comprises an axle main shaft, a brake disc is fixedly connected to one side of the axle main shaft, an axle shell is movably connected to the outer surface of the axle main shaft through a bearing, a brake caliper support is fixedly connected to the right end of one side, close to the brake disc, of the axle shell, two sliding pins are symmetrically and fixedly connected to the upper end and the lower end of the outer surface of the rear end of the brake caliper support, a fixing plate is fixedly connected to the rear end of each sliding pin, a first spring is sleeved on one side, close to the fixing plate, of the annular outer surface of each sliding pin, the rear end of each first spring is fixedly connected with the fixing plate, a brake shell is fixedly connected to the front end of each first spring, the brake shell is slidably connected with the brake caliper support through the sliding pins, a piston is movably connected to the position, close to the rear end, inside the brake shell, an oil inlet pipe is fixedly connected to the outer surface of the rear end of the brake shell, and a rear brake pad is fixedly connected to the front end of the piston, the inner surface of the brake shell is fixedly connected with a front brake pad in front of a rear brake pad, the edge part of the right side of the brake disc is positioned between the front brake pad and the rear brake pad, and a friction mechanism is movably connected inside one side, close to the brake disc, of the rear brake pad;

friction mechanism includes activity groove, friction disc, spout, dead lever and second spring, the activity groove is seted up in one side surface that the back brake block is close to the brake disc, the inside swing joint in activity groove has the friction disc, a plurality of spout has been seted up to the inside of friction disc, the inside swing joint of spout has the dead lever, the rear end of dead lever run through to the inside of back brake block and with back brake block fixed connection, the annular surface of dead lever has cup jointed the second spring, the rear end and the dead lever swing joint of second spring, the front end and the friction disc fixed connection of second spring.

Because the brake disc and the brake block are abraded due to friction, the brake disc and the brake block need to be replaced regularly in order to ensure the normal operation of the brake system, compared with the brake disc, the brake block is more easily abraded, the replacement frequency is higher, the use cost of a user is increased, and the maintenance time of an operator is increased, the friction mechanism is arranged, when the driver needs to decelerate, the brake pedal can be lightly stepped, the hydraulic oil system operates and transports the hydraulic oil to the interior of the brake shell through the oil inlet pipe, so that the oil pressure is generated to drive the piston to move forwards, the piston drives the rear brake block to move forwards and drives the friction plate to move forwards, and the friction plate and the brake disc are in mutual contact, the fixed rod slides along the sliding groove, the second spring contracts, the friction plate generates extrusion force on the brake disc by the elastic force generated by the second spring, the brake disc is decelerated by utilizing the friction force between the friction plate and the brake disc, so as to achieve the aim of decelerating the vehicle, when a user needs emergency braking, the brake pedal is re-stepped, the piston moves forwards to enable the friction plate to be in contact with the brake disc and slide to the inner part of the movable groove, the rear brake plate is in contact with the brake disc, the piston continues to move forwards to enable the brake shell to slide backwards along the sliding pin, the front brake plate is driven to move backwards and be in contact with the brake disc, and the front brake plate and the rear brake plate are in contact with the front end and the rear end of the brake disc to achieve the aim of emergency braking by arranging the friction mechanism and utilizing the mutual contact between the friction plate and the brake disc to achieve the aim of decelerating the vehicle, the front brake block and the rear brake block are arranged to brake the vehicle emergently, and the front brake block and the rear brake block are not in contact with the brake disc when the vehicle decelerates, so that the front brake block and the rear brake block are protected, the abrasion to the front brake block and the rear brake block is reduced, the replacement frequency of the front brake block and the rear brake block is reduced, the use cost of a user is reduced, and the maintenance time of an operator is reduced.

Preferably, the rear end fixedly connected with screw rod of dead lever, threaded connection between the annular surface of screw rod and the back brake block, the front end outer fixed surface of dead lever is connected with the limiting plate, the cross recess has been seted up to the front end of limiting plate, logical groove has been seted up to the position that the inside of friction disc is located the spout front end.

When the friction plate changing machine works, the distance between the friction plate and the brake disc is increased after the friction plate is worn, so that the speed reducing effect of the friction plate on the brake disc is influenced, the friction plate needs to be changed, the changing frequency of the friction plate is increased, the labor force and the use cost are increased, the screw rod is arranged, when the distance between the friction plate and the brake disc is increased after the friction plate is worn, the limiting plate is screwed to enable the fixing rod and the screw rod to rotate, the screw rod rotates backwards and moves, and drives the second spring and the friction plate to move backwards, the distance between the friction plate and the brake disc is adjusted to the initial size, when the friction plate needs to be changed, the limiting plate is continuously screwed to enable the screw rod and the rear brake disc to be separated from each other, so that the friction plate is taken out, the thread connection between the screw rod and the rear brake disc is arranged, the spacing between the friction plate and the brake disc can be moved by rotating the limiting plate, so that the distance between the friction plate and the brake disc is adjusted, the friction plate is prevented from being damaged and then needs to be replaced frequently, so that labor force and use cost are reduced, and meanwhile, the friction plate can be replaced conveniently by utilizing the rotating limiting plate.

Preferably, the annular surface fixedly connected with of dead lever is solid fixed ring, gu fixed ring's front end surface swing joint has the pivot, the front end fixedly connected with connecting plate of pivot, the front end and the second spring fixed connection of connecting plate, through pivot swing joint between second spring and the dead lever.

When the brake disc is in work, the fixed rod is connected with the friction plate through the second spring, and when the limiting plate is rotated to drive the fixed rod to rotate, the second spring can generate torsion deformation, so that the second spring is easily damaged, and the deceleration effect of the friction plate on the brake disc is weakened.

Preferably, the diameter of the limiting plate is the same as that of the sliding chute, the inner diameter of the opening at the rear end of the sliding chute is the same as that of the fixing rod, and the diameter of the limiting plate is larger than that of the fixing rod.

Because the diameter of limiting plate is greater than spout rear end opening part internal diameter to make limiting plate and the mutual block of spout rear end opening part, thereby spacing the brake block, prevent that the brake block from breaking away from the condition emergence of activity groove.

Preferably, the outer surface edge positions of the front end and the rear end of the brake disc are fixedly connected with a protection mechanism;

the protection mechanism comprises two friction rings and a heat insulation plate, the two friction rings are fixedly connected to the edge positions of the outer surfaces of the front end and the rear end of the brake disc through a plurality of screws, and the heat insulation plate is arranged between the brake disc and the friction rings.

When the brake disc works for a long time, the outer surface of the brake disc is abraded due to friction, so that the brake disc needs to be replaced, repair personnel can replace the whole brake disc normally, and replacement cost is increased.

Preferably, the position, close to the heat insulation plate, of the annular outer surface of the friction ring is provided with a plurality of first heat dissipation grooves, and the brake disc is internally provided with a plurality of second heat dissipation grooves.

During operation, be convenient for dispel the heat to friction ring and heat insulating board through setting up first radiating groove, be convenient for dispel the heat to the brake disc through setting up the second radiating groove, the heat that friction ring and brake disc produced to the friction of being convenient for is gived off to improve its life.

Compared with the prior art, the invention has the beneficial effects that:

the invention realizes the purpose of decelerating the vehicle by arranging the friction mechanism and utilizing the mutual contact of the friction plate and the brake disc, and emergently brakes the vehicle by arranging the front brake block and the rear brake block, because the front brake block and the rear brake block are not contacted with the brake disc during the deceleration of the vehicle, the front brake block and the rear brake block are protected, the abrasion caused to the front brake block and the rear brake block is reduced, the frequency of replacing the front brake block and the rear brake block is reduced, the use cost of a user is reduced, meanwhile, the maintenance time of an operator is reduced, by arranging the protection mechanism, two friction rings are fixedly connected at the edge positions of two ends of the brake disc through screws, the friction rings are mutually contacted with the front brake block and the rear brake block, the brake disc is protected, when the friction rings are damaged, the screws are screwed to disassemble and replace the friction rings, the brake disc can be continuously used, so that the replacement cost is reduced.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the combination of the caliper support bracket and the caliper brake pad of the present invention;

FIG. 3 is a schematic view of the combination of the brake caliper support bracket and the brake housing of the present invention;

FIG. 4 is a combined cross-sectional view of the brake housing, front brake pad and rear brake pad of the present invention;

FIG. 5 is a combined cross-sectional view of a movable groove and a friction plate according to the present invention;

FIG. 6 is an enlarged view taken at A in FIG. 5;

FIG. 7 is a sectional view of the protective mechanism of the present invention in combination with a brake disc;

figure 8 is a combined cross-sectional view of the brake disc and friction ring of the present invention.

In the figure: 1. an axle spindle; 11. a brake disc; 12. an axle housing; 13. a brake caliper support; 14. a slide pin; 15. a fixing plate; 16. a first spring; 17. a brake housing; 18. a piston; 19. an oil inlet pipe; 10. a rear brake pad; 111. a front brake pad;

2. a friction mechanism; 21. a movable groove; 22. a friction plate; 23. a chute; 24. fixing the rod; 25. a second spring; 26. a screw; 27. a limiting plate; 28. a through groove; 29. a fixing ring; 20. a rotating shaft; 211. a connecting plate;

3. a protection mechanism; 31. a friction ring; 32. a heat insulation plate; 33. a first heat sink; 34. a second heat sink.

Detailed Description

The invention now will be described in connection with a few, but not all, embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 8, the present invention provides a new energy electric axle technical scheme:

a new energy electric axle is shown in fig. 1 to 5, and comprises an axle spindle 1, a brake disc 11 is fixedly connected to one side of the axle spindle 1, an axle housing 12 is movably connected to the outer surface of the axle spindle 1 through a bearing, a brake caliper support 13 is fixedly connected to the right end of one side of the axle housing 12 close to the brake disc 11, two sliding pins 14 are symmetrically and fixedly connected to the upper end and the lower end of the outer surface of the rear end of the brake caliper support 13, a fixing plate 15 is fixedly connected to the rear end of each sliding pin 14, a first spring 16 is sleeved on one side of the annular outer surface of each sliding pin 14 close to the fixing plate 15, the rear end of each first spring 16 is fixedly connected to the fixing plate 15, a brake housing 17 is fixedly connected to the front end of each first spring 16, the brake housing 17 is slidably connected to the brake caliper support 13 through the sliding pins 14, and a piston 18 is movably connected to the position of the inner portion of the brake housing 17 close to the rear end, the outer surface of the rear end of the brake shell 17 is fixedly connected with an oil inlet pipe 19, the front end of the piston 18 is fixedly connected with a rear brake pad 10, the inner surface of the brake shell 17 is positioned in front of the rear brake pad 10 and is fixedly connected with a front brake pad 111, the edge part of the right side of the brake disc 11 is positioned between the front brake pad 111 and the rear brake pad 10, and the inner part of one side, close to the brake disc 11, of the rear brake pad 10 is movably connected with a friction mechanism 2;

friction mechanism 2 includes activity groove 21, friction disc 22, spout 23, dead lever 24 and second spring 25, activity groove 21 sets up in one side surface that back brake block 10 is close to brake disc 11, the inside swing joint of activity groove 21 has friction disc 22, a plurality of spout 23 has been seted up to the inside of friction disc 22, the inside swing joint of spout 23 has dead lever 24, the rear end of dead lever 24 run through to the inside of back brake block 10 and with back brake block 10 fixed connection, second spring 25 has been cup jointed to the annular surface of dead lever 24, the rear end and the dead lever 24 swing joint of second spring 25, the front end and the friction disc 22 fixed connection of second spring 25.

Because the brake disc 11 of the vehicle brake system is stopped by the huge friction force generated by the mutual joint of the brake disc 11 and the brake pad, thereby realizing the purpose of braking the vehicle, the brake disc 11 and the brake pad are abraded due to friction, in order to ensure the normal operation of the brake system, the brake disc 11 and the brake pad need to be replaced regularly, compared with the brake disc 11, the brake pad is more easily abraded, the replacement frequency is higher, thereby increasing the use cost of a user, and simultaneously increasing the maintenance time of an operator, by arranging the friction mechanism 2, when the driver needs to decelerate, the brake pedal can be lightly stepped, the hydraulic oil system operates and transports the hydraulic oil to the interior of the brake shell 17 through the oil inlet pipe 19, thereby generating oil pressure to drive the piston 18 to move forwards, the piston 18 drives the rear brake pad 10 to move forwards and drives the friction plate 22 to move forwards, when a user needs emergency braking, the piston 18 moves forwards to enable the friction plate 22 to be in contact with the brake disc 11 and slide into the movable groove 21, the rear brake pad 10 is in contact with the brake disc 11, the piston 18 continues to move forwards to enable the brake shell 17 to slide backwards along the sliding pin 14 to drive the front brake pad 111 to move backwards and be in contact with the brake disc 11, and the front brake pad 111 and the rear brake pad 10 are in contact with the front end and the rear end of the brake disc 11 to achieve the purpose of emergency braking by utilizing the mutual contact of the front brake pad 111 and the rear brake pad 10 with the front end and the rear end of the brake disc 11, according to the invention, the friction mechanism 2 is arranged, the friction plate 22 and the brake disc 11 are contacted with each other, so that the purpose of decelerating the vehicle is realized, the front brake pad 111 and the rear brake pad 10 are arranged for emergency braking of the vehicle, and the front brake pad 111 and the rear brake pad 10 are not contacted with the brake disc 11 during vehicle deceleration, so that the front brake pad 111 and the rear brake pad 10 are protected, the abrasion of the front brake pad 111 and the rear brake pad 10 is reduced, the frequency of replacing the front brake pad 111 and the rear brake pad 10 is reduced, the use cost of a user is reduced, and the maintenance time of an operator is reduced.

As an embodiment of the present invention, as shown in fig. 5 and 6, a screw 26 is fixedly connected to a rear end of the fixing rod 24, an annular outer surface of the screw 26 is in threaded connection with the rear brake pad 10, a limiting plate 27 is fixedly connected to an outer surface of a front end of the fixing rod 24, a cross-shaped groove is formed at a front end of the limiting plate 27, and a through groove 28 is formed in a position, located at a front end of the sliding groove 23, inside the friction plate 22.

When the brake disc is in operation, the distance between the friction plate 22 and the brake disc 11 is increased after the friction plate 22 is worn, so that the deceleration effect of the friction plate 22 on the brake disc 11 is influenced, the friction plate 22 needs to be replaced, the replacement frequency of the friction plate 22 is increased, and the labor force and the use cost are increased, the screw 26 is arranged, when the distance between the friction plate 22 and the brake disc 11 is increased after the friction plate 22 is worn, the limit plate 27 is screwed to enable the fixing rod 24 and the screw 26 to rotate, the screw 26 rotates backwards and drives the second spring 25 and the friction plate 22 to move backwards, the distance between the friction plate 22 and the brake disc 11 is adjusted to the initial size, when the friction plate 22 needs to be replaced, the limit plate 27 is continuously screwed to enable the screw 26 and the rear brake disc 10 to be separated from each other, so that the friction plate 22 is taken out, the brake disc 22 can be moved by arranging the threaded connection between the screw 26 and the rear brake disc 10 and rotating the limit plate 27, therefore, the distance between the friction plate 22 and the brake disc 11 is adjusted, the friction plate 22 is prevented from being frequently replaced after being damaged, labor force and use cost are reduced, and meanwhile the friction plate 22 can be conveniently replaced by the aid of the rotary limiting plate 27.

As an embodiment of the present invention, as shown in fig. 6, a fixing ring 29 is fixedly connected to an annular outer surface of the fixing rod 24, a rotating shaft 20 is movably connected to an outer surface of a front end of the fixing ring 29, a connecting plate 211 is fixedly connected to a front end of the rotating shaft 20, a front end of the connecting plate 211 is fixedly connected to a second spring 25, and the second spring 25 is movably connected to the fixing rod 24 through the rotating shaft 20.

When the brake disc device works, the fixing rod 24 is connected with the friction plate 22 through the second spring 25, when the fixing rod 24 is driven to rotate by the rotation limiting plate 27, the second spring 25 can generate torsional deformation, so that the second spring 25 is easily damaged, and the deceleration effect of the friction plate 22 on the brake disc 11 is weakened.

As an embodiment of the present invention, as shown in fig. 6, the diameter of the limit plate 27 is the same as that of the chute 23, the inner diameter of the opening at the rear end of the chute 23 is the same as that of the fixing rod 24, and the diameter of the limit plate 27 is larger than that of the fixing rod 24.

Because the diameter of the limit plate 27 is greater than the inner diameter of the opening at the rear end of the sliding chute 23, the limit plate 27 is clamped with the opening at the rear end of the sliding chute 23, the brake pad is limited, and the brake pad is prevented from being separated from the movable groove 21.

As an embodiment of the present invention, as shown in fig. 7 and 8, the outer surface edges of the front and rear ends of the brake disc 11 are fixedly connected with the protection mechanisms 3;

the protection mechanism 3 comprises two friction rings 31 and a heat insulation plate 32, the two friction rings 31 are fixedly connected to the outer surface edge positions of the front end and the rear end of the brake disc 11 through a plurality of screws, and the heat insulation plate 32 is arranged between the brake disc 11 and the friction rings 31.

When the brake disc 11 works for a long time, the outer surface of the brake disc 11 is abraded due to friction, so that the brake disc 11 needs to be replaced, and a repair worker usually replaces the whole brake disc 11, so that the replacement cost is increased.

As an embodiment of the present invention, as shown in fig. 8, a plurality of first heat dissipation grooves 33 are formed on the annular outer surface of the friction ring 31 at positions close to the heat insulation plate 32, and a plurality of second heat dissipation grooves 34 are formed inside the brake disc 11.

In operation, the friction ring 31 and the heat insulation plate 32 are conveniently cooled by the first cooling grooves 33, the brake disc 11 is conveniently cooled by the second cooling grooves 34, and the friction ring 31 and the brake disc 11 are conveniently cooled to dissipate heat generated by friction, so that the service life of the brake disc is prolonged.

The working principle is as follows: the friction mechanism 2 is arranged, when a driver needs to decelerate, the brake pedal can be lightly stepped, a hydraulic oil system operates and transports hydraulic oil to the interior of the brake shell 17 through the oil inlet pipe 19, so that oil pressure is generated to drive the piston 18 to move forwards, the piston 18 drives the rear brake pad 10 to move forwards and drives the friction plate 22 to move forwards, so that the friction plate 22 is in contact with the brake disc 11, the fixed rod 24 slides along the sliding groove 23, the second spring 25 contracts, the friction plate 22 generates extrusion force on the brake disc 11 under the action of the elastic force generated by the second spring 25, the brake disc 11 is decelerated by utilizing the friction force between the friction plate 22 and the brake disc 11, so as to achieve the aim of decelerating the vehicle, when the user needs to brake in an emergency, the brake pedal is heavily stepped, the piston 18 moves forwards, so that the friction plate 22 is in contact with the brake disc 11 and slides to the interior of the movable groove 21, the rear brake block 10 and the brake disc 11 are contacted with each other, the piston 18 continuously moves forwards to enable the brake shell 17 to slide backwards along the sliding pin 14, the front brake block 111 is driven to move backwards and is contacted with the brake disc 11, the purpose of emergency braking is achieved by utilizing the mutual contact of the front and rear ends of the front brake block 111 and the rear brake block 10 with the front end and the rear end of the brake disc 11, through the arrangement of the protection mechanism 3, two friction rings 31 are fixedly connected to the edge positions of the two ends of the brake disc 11 through screws, the friction rings 31 are contacted with the front brake block 111 and the rear brake block 10, the brake disc 11 is protected, and when the friction rings 31 are damaged, the screws are screwed to detach and replace the friction rings 31.

The electric elements in the document are electrically connected with an external main controller and 220V mains supply through a transformer, the main controller can be a conventional known device controlled by a computer and the like, the product model provided by the invention is only used according to the structural characteristics of the product, the product can be adjusted and modified after being purchased, so that the product is more matched with and accords with the technical scheme of the invention, the product model is a technical scheme of the optimal application of the technical scheme, the product model can be replaced and modified according to the required technical parameters, and the product model is familiar to the technical personnel in the field, so that the technical scheme provided by the invention can clearly obtain the corresponding use effect.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.