CN209340404U - Magneto-rheological shock absorber for automobile - Google Patents

Abstract

The utility model provides an automobile magneto-rheological shock absorber, which relates to the field of automobile accessories. The automobile magneto-rheological shock absorber includes a main body, a tray is welded on the upper end of the main body, a piston rod is inserted through the upper part of the inner cavity of the main body, a fixed plate is arranged on the upper end of the piston rod, and a fixed plate is installed in the inner cavity of the fixed plate. The cavity is provided with a fixing mechanism. The automobile magneto-rheological shock absorber is arranged through the cooperation of the main body, the tray, the piston rod, the fixed plate, the fixing mechanism, the connecting mechanism and the plug-in mechanism, so that the main body is connected firmly and at the same time it is convenient to disassemble, which solves the problem of The magnetorheological shock absorber has a certain service life. With the daily use of the magnetorheological shock absorber fixed by bolts, the external humid air will soak the bolts and cause rust. Although the welding is stable, it needs to be disassembled. The cutting knife makes the cut, and the sparks thrown up during the cutting may cause damage problems to other car components.

Description

Magneto-rheological shock absorber for automobile

technical field

The utility model relates to the technical field of automobile damping equipment, in particular to an automobile magneto-rheological shock absorber.

Background technique

During the running of the car, the suspension system vibrates due to the impact of the elastic element. In order to improve the ride comfort of the car, a shock absorber is installed in parallel with the elastic element in the suspension. At present, the shock absorbers used in automobile suspension are mostly passive. For example, the traditional passive hydraulic shock absorber achieves shock absorption through the damping of oil flowing through the one-way valve, and cannot change the damping of the shock absorber according to the road condition information. coefficient, the comfort of the driver and passengers in the driving process is not satisfied to the maximum. The active suspension system with adjustable damping force and spring stiffness can change the damping force and spring stiffness according to road conditions and vehicle driving conditions to meet the requirements of ride comfort, driving and driving safety, but due to the active suspension The complex structure and high cost of the system make it only in the stage of laboratory exploration in China. The semi-active suspension system composed of passive springs and active shock absorbers with adjustable damping force is gradually becoming the development direction of modern automobile suspension systems due to its low price, relatively simple manufacturing process, and good shock absorption effect. .

For example, the magnetorheological fluid shock absorber has a good application prospect in automobile shock absorption because of its compact structure, low power consumption, large damping force, and wide dynamic range, and the damping force can be controlled by adjusting the magnitude of the external magnetic field.

During the installation process of automobile magnetorheological shock absorbers, welding or a large number of bolts are generally used for fixing, and magnetorheological shock absorbers have a certain service life. When damage occurs due to service life or accidents, the magnetorheological shock absorbers need to be The rheological shock absorber is disassembled, repaired or replaced, but the magneto-rheological shock absorber fixed by bolts will be used daily, and the external humid air will soak the bolts and cause rust. Although the welding is stable, it needs to be disassembled. The cutting knife is used for cutting, and the sparks thrown up during cutting may cause damage to other car components.

Utility model content

Technical solutions

In order to achieve the above purpose, the utility model is achieved through the following technical solutions: a magneto-rheological shock absorber for automobiles, including a main body 1, a tray 2 is welded on the upper end of the main body 1, and a Piston rod 3, the upper end of described piston rod 3 is provided with fixed plate 4, and the inner cavity of described fixed plate 4 is provided with fixing mechanism 5, and described fixing mechanism comprises opening, and described opening is positioned at the middle part of fixed plate bottom end, and described There is a communication port around the middle part of the opening inner cavity, and one end of the communication port extends to the outside of the fixed plate. Both sides of the inner cavity of the communication port are provided with chute, and the inner cavity of the chute is fixedly equipped with a return spring. One end of the return spring is fixedly connected with a connecting rod, and one end of the connecting rod is welded with a plunger, and the plunger closely fits with the inner cavity of the communication port, and the lower end of the fixed plate 4 is fixedly connected with a spring 6, and the spring The other end of 6 is fixedly connected with the upper end of the tray 2, and a connection plate 7 is welded around the middle of the spring 6, and the connection plate 7 is provided with a recoil mechanism 8, and the bottom of the main body 1 is provided with a connection mechanism 11, so The connection mechanism 11 includes a fixed block 111, the upper part of the fixed block 111 is provided with a connection port 112, the two ends of the connection port 112 are provided with a docking port 113, and the upper end of the docking port 113 is connected with a horizontal port 114, so The middle part of the connection port 112 is provided with an annular plate 115, both ends of the annular plate 115 extend to the inner cavity of the docking port 113, and both ends of the annular plate 115 slide through the inner cavity of the horizontal opening 114 through the annular strip 1116 connection, the annular plate 115 is provided with a docking hole 117, the lower end of the main body 1 is fixedly installed with a docking column 12, and the inner cavity of the docking column 12 is provided with a plugging mechanism 13, and the plugging mechanism 13 includes a docking groove 131 A small spring 132 is fixedly installed in the inner cavity of the docking groove 131 , and one end of the small spring 132 is fixedly installed with a limiting rod 133 , and the limiting rod 133 is plugged into the docking hole 117 .

Further, the lower part of the insertion rod close to the end of the open cavity has an inclination angle of 30 degrees, and the other end of the insertion rod is fixedly connected with a pull ring plate, and the pull ring plate is located outside the fixed plate.

Further, the upper end of the piston rod is welded with a connecting column, and there are insertion openings around the connecting column, and the four insertion openings are arranged alternately, and the insertion openings are inserted into the insertion rod.

Further, the recoil mechanism includes an extruding rod, the extruding rod is located at the upper end of the connecting plate, and the inner cavity of the fixed plate is provided with a U-shaped groove, and the U-shaped groove is located at the lower end of the communication port. The inner cavity of the U-shaped groove is provided with an air bag, the middle part of the air bag is fixedly connected with the middle part of the inner cavity of the U-shaped groove, and inner grooves are provided on both sides of the inner cavity of the U-shaped groove, and the inner cavity of the inner groove is slidably connected There is a slider, the slider is fixedly connected to the extruding rod through the connecting block, one end of the airbag is fixedly connected to the docking rod, and the docking rod is fixedly connected to the upper side of the connecting plate, and the lower end of the connecting plate is stretched The rod is fixedly connected to the upper end of the tray.

Further, one end of the two transverse inserting rods is provided with a socket, and the diameter of the socket is the same as that of the two longitudinal inserting rods, and the longitudinal inserting rods are inserted into the sockets.

Further, the size of the connecting column is the same as the diameter of the opening.

Further, the airbag fits closely with the inner cavity of the U-shaped groove, and the docking rod is located at the left end of the airbag, and the extrusion rod is located at the right end of the airbag, and the docking rod and the extrusion rod are fixed by the connecting block and the slider connect.

Further, the docking column is plugged into the inner cavity of the fixed block.

Beneficial effect

Compared with the prior art, the utility model is provided through the cooperation of the main body, the tray, the piston rod, the fixed plate, the fixing mechanism, the connecting mechanism and the plugging mechanism, so that the main body can be connected stably, and at the same time, it is convenient to disassemble and solve the problem of The magneto-rheological shock absorber has a certain service life. When it is damaged due to service life or accidents, it is necessary to disassemble, repair or replace the magnetorheological shock absorber, but the magnetorheological shock absorber fixed by bolts In daily use, the external humid air will wet the bolts and cause rust. Although the welding is stable, a cutting knife is required to cut it when disassembling. The sparks splashed during cutting may cause damage to other car components.

In order to slow down the shaking generated when the vehicle is running, the utility model respectively adopts the structural design of the recoil mechanism, extrusion rod, U-shaped groove, air bag, inner groove, slider and docking rod. The contact with the ground will cause vibration. When encountering potholes on the road, the main body will move upward through the piston cover, thereby squeezing the spring. When the spring is squeezed, the connecting plate on it will drive the extrusion rod upward, thereby making the extrusion One end of the pressure rod moves upward along the inner groove through the slider to squeeze the air bag in the U-shaped groove, so that the air at the right end of the air bag moves to the left end, and the stacking rod is pushed by the air bag to squeeze the connecting plate to make the connection The plate drives the spring down, creating the recoil.

In order to ensure the stability of the connection of the lower end of the main body, the utility model respectively adopts a connection mechanism, a fixed block, a connection port, a docking port, a horizontal mouth, an annular plate, an annular strip, a docking hole, a docking column, a plugging mechanism, a docking groove, The structural design of the small spring and the limit rod, when the docking column at the lower end of the main body is docked with the fixed block, by holding the limit rod to move it into the inner cavity of the docking groove, and then insert the docking rod into the inner cavity of the fixed block, And hold the annular plate and twist the annular plate to make it move along the inner cavity of the horizontal opening through the annular bar, so that the butt hole on the annular plate is plugged with the limit rod, thereby ensuring the stability of the lower end of the main body after fixing.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a side view of the inner cavity of the fixed disk of the present invention;

Fig. 3 is a side sectional view of the inner groove of the fixed disk of the present invention;

Fig. 4 is a side view of the inner cavity of the fixed block of the present invention;

Fig. 5 is a side view of the inner chamber of the docking column of the present invention.

Among them, 1 main body, 2 tray, 3 piston rod, 4 fixed plate, 5 fixed mechanism, 51 opening, 52 communication port, 53 chute, 54 return spring, 55 connecting rod, 56 inserting rod, 57 pull ring plate, 6 spring , 7 connection plate, 8 recoil mechanism, 81 extrusion rod, 82 U-shaped groove, 83 air bag, 84 inner groove, 85 slider, 86 docking rod, 9 insertion port, 10 connection column, 11 connection mechanism, 111 fixed block, 112 connection port, 113 docking port, 114 horizontal opening, 115 ring plate, 116 ring bar, 117 docking hole, 12 docking post, 13 plug mechanism, 131 docking slot, 132 small spring, 133 limit rod, 14 socket.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Figure 1-5, the embodiment of the utility model provides an automobile magneto-rheological shock absorber, including an automobile magneto-rheological shock absorber, including a main body 1, the upper end of the main body 1 is welded with a tray 2, and the inner cavity of the main body 1 The upper part of the piston rod 3 is interspersed with a piston rod 3, and the upper end of the piston rod 3 is welded with a connecting column 10. The size of the connecting column 10 is the same as the diameter of the opening 51. There are insertion openings 9 around the connecting column 10, and four insertion openings 9 staggered between, the insertion port 9 is plugged with the insertion rod 56, the upper end of the piston rod 3 is provided with a fixed plate 4, and the inner cavity of the fixed plate 4 is provided with a fixing mechanism 5, the fixing mechanism 5 includes an opening 51, and the opening 51 is located on the fixed plate 4 In the middle part of the bottom end, a communication port 52 is communicated around the middle part of the opening 51 cavity, and one end of the communication port 52 extends to the outside of the fixed disk 4, and both sides of the communication port 52 cavity are provided with chute 53, and the interior of the chute 53 The cavity is fixedly equipped with a return spring 54, and one end of the return spring 54 is fixedly connected with a connecting rod 55, and one end of the connecting rod 55 is welded with an insertion rod 56, and one end of the two transverse insertion rods 56 is provided with a jack 14, and the socket 14 The size of the caliber is the same as that of the two longitudinal inserting rods 56. The longitudinal inserting rods 56 are plugged into the socket 14, and the inserting rods 56 fit closely with the inner chamber of the communication port 52. The other end of the insertion rod 56 is fixedly connected with a pull ring plate 57. When the piston rod 3 is docked with the fixed plate 4, first hold the pull ring plate 57 and pull it outward so that the insertion rod 56 moves along the The connecting port 52 moves outwards, and then the connecting column 10 at the upper end of the piston rod 3 is inserted into the opening 51, and the two pull ring plates 57 are loosened so that the horizontal inserting rod 56 on the fixed disk 4 is inserted through the restoring force of the return spring 54 itself. In the insertion opening 9 on the connecting column 10, loosen the two longitudinal inserting rods 56 to insert them into the upper sockets 14 of the transverse inserting rods 56, thereby limiting and fixing the piston rod 3, and the pull ring plate 57 is positioned on the fixed plate 4 outside, the lower end of the fixed plate 4 is fixedly connected with a spring 6, and the other end of the spring 6 is fixedly connected with the upper end of the tray 2, a connecting plate 7 is welded around the middle of the spring 6, and a recoil mechanism 8 is arranged on the connecting plate 7. Punching mechanism 8 comprises extruding rod 81, and extruding rod 81 is positioned at the upper end of connecting plate 7, and the inner chamber of fixed disc 4 is provided with U-shaped groove 82, and U-shaped groove 82 is positioned at the lower end of communicating port 52, and the inner cavity of U-shaped groove 82 The cavity is provided with an air bag 83, and the inner cavity of the air bag 83 and the U-shaped groove 82 is closely fitted, and the docking rod 86 is positioned at the left end of the air bag 83, and the extrusion rod 81 is positioned at the right end of the air bag 83, and the docking rod 86 and the extrusion rod 81 are both The connecting block is fixedly connected with the slide block 85, the middle part of the airbag 83 is fixedly connected with the middle part of the U-shaped groove 82 inner cavity, and the two sides of the U-shaped groove 82 inner cavity are provided with inner grooves 84, and the inner cavity of the inner groove 84 is slidably connected with Slide block 85, slide block 85 is fixedly connected with extruding rod 81 by connecting block, and one end of air bag 83 is fixedly connected with docking rod 86, when the automobile is running, because of the contact of tire and ground can produce shaking, when encountering potholes When the ground is on the road, the main body 1 will move upwards through the piston cover 3, thereby producing a force on the spring 6. When the spring 6 is squeezed, the connecting plate 7 on it will drive the extrusion rod 81 upward, so that one end of the extrusion rod 81 moves upward along the inner groove 84 through the slider 85 to the airbag in the U-shaped groove 82. 83 is squeezed, so that the air at the right end of the air bag 83 moves to the left end, and the stacking rod 86 is pushed by the air bag 83 to squeeze the connecting plate 7, so that the connecting plate 7 drives the spring 6 downward, thereby forming a recoil. And the docking rod 86 is fixedly connected with one side of the upper end of the connecting plate 7, the lower end of the connecting plate 7 is fixedly connected with the upper end of the tray 2 through a telescopic rod, the bottom of the main body 1 is provided with a connecting mechanism 11, and the connecting mechanism 11 includes a fixed block 111. The top of the block 111 is provided with a connecting port 112, and the two ends of the connecting port 112 are provided with a docking port 113, and the upper end of the docking port 113 is connected with a horizontal opening 114, and the middle part of the connecting port 112 is provided with an annular plate 115, and the two ends of the annular plate 115 All extend to the inner cavity of the docking port 113, and both ends of the annular plate 115 are slidingly connected with the inner cavity of the horizontal opening 114 through the annular strip 1116, the annular plate 115 is provided with a docking hole 117, and the lower end of the main body 1 is fixedly installed with a docking hole 117. Column 12, docking column 12 is plugged with the inner cavity of fixed block 111, and the inner cavity of docking column 12 is provided with a plugging mechanism 13, and plugging mechanism 13 includes a docking groove 131, and a small spring 132 is fixedly installed in the inner cavity of the docking groove 131 , one end of the small spring 132 is fixedly installed with a limit rod 133, and the limit rod 133 is plugged into the docking hole 117. When the docking column 12 at the lower end of the main body 1 is docked with the fixed block 111, the limit rod 133 is held to make it inward The inner cavity of the docking groove 131 moves, and then the docking rod 12 is inserted into the inner cavity of the fixed block 111, and after holding the annular plate 115, the annular plate 115 is twisted to make it move along the inner cavity of the horizontal opening 114 through the annular bar 116, thereby The butt joint hole 117 on the annular plate 115 is inserted into the limit rod 113, thereby ensuring the stability of the lower end of the main body 1 after being fixed.

Working principle: When in use, by inserting the connecting column at the upper end of the piston rod into the opening at the bottom of the fixed plate, the insertion port on the connecting column is inserted into the inserting rod in the inner cavity of the fixed plate, and the inserted longitudinal inserting rod is aligned with the fixed plate. The insertion of the horizontal insertion rod ensures the stability of the connection of the upper end of the main body, and the lower end of the rear main body is inserted into the butt hole on the fixed block through the upper limit rod of the butt joint column, which ensures the stability of the lower end of the main body after connection.

As shown in Figures 1-5, the utility model is provided with the cooperation of the main body 1, the tray 2, the piston rod 3, the fixed plate 4, the fixing mechanism 5, the connecting mechanism 11 and the plug-in mechanism 13, so that the connection to the main body 1 is stable. At the same time, it is also convenient to disassemble, which solves the problem that the magneto-rheological shock absorber has a certain service life. When it is damaged due to service life or accidents, it is necessary to disassemble, repair or replace the magnetorheological shock absorber, but the use of bolts With the daily use of fixed magneto-rheological shock absorbers, the external humid air will soak the bolts and cause rust. Although the welding is stable, it needs a cutting knife to cut when disassembling, and the sparks splashed during cutting may cause Other car components have problems with damage.

As shown in Figures 1-5, in order to slow down the vibration generated when the vehicle is running, the utility model adopts recoil mechanism 8, extrusion rod 81, 82 U-shaped groove, 83 airbag, 84 inner groove, 85 slider and 86 docking The structural design of the rod, when the car is running, the tire will vibrate due to the contact with the ground. When encountering potholes on the road, the main body 1 will move upward through the piston cover 3, thereby squeezing the spring 6, and the spring 6 will withstand When extruding, the connecting plate 7 on it will drive the extruding rod 81 upwards, so that one end of the extruding rod 81 moves upwards along the inner groove 84 through the slider 85 to squeeze the air bag 83 in the U-shaped groove 82, so that The air at the right end of the airbag 83 moves to the left end, so that the stacking rod 86 is pushed by the airbag 83 to squeeze the connecting plate 7, so that the connecting plate 7 drives the spring 6 downward, thereby forming a recoil.

As shown in Figures 1-5, in order to ensure the stability of the lower end of the main body 1 after connection, the utility model adopts a connecting mechanism 11, a fixed block 111, a connecting port 112, a docking port 113, a horizontal port 114, an annular plate 115, and an annular The structural design of bar 116, docking hole 117, docking column 12, plug-in mechanism 13, docking groove 131, small spring 132 and limit rod 133, when the docking column 12 at the lower end of main body 1 is docked with fixed block 111, by holding The limit rod 133 makes it move to the inner cavity of the inner docking groove 131, and then the docking rod 12 is inserted into the inner cavity of the fixed block 111, and after holding the ring plate 115, twist the ring plate 115 to make it pass through the ring bar 116 along the horizontal direction. The inner cavity of the port 114 moves, so that the butt hole 117 on the annular plate 115 is inserted into the limit rod 113, thereby ensuring the stability of the lower end of the main body 1 after being fixed.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (8)

1. a kind of auto magnetorheological damper, including main body (1), it is characterised in that: the upper end of the main body (1) is welded with pallet (2), the top of main body (1) inner cavity is interspersed with piston rod (3), and the upper end of the piston rod (3) is provided with fixed disk (4), The inner cavity of the fixed disk (4) is provided with fixed mechanism (5), and the fixed mechanism (5) includes opening (51), the opening (51) Positioned at the middle part of fixed disk (4) bottom end, being communicated with the periphery of communication port (52) in the middle part of described opening (51) inner cavity, and communication port (52) one end extends to the outside of fixed disk (4), and the two sides of communication port (52) inner cavity offer sliding slot (53), the cunning The inner cavity of slot (53) is fixedly installed with reset spring (54), and one end of the reset spring (54) is fixedly connected with connecting rod (55), one end of the connecting rod (55) is welded with inserted link (56), and inserted link (56) and the inner cavity of communication port (52) fit closely, The lower end of the fixed disk (4) is fixedly connected with spring (6), and the fixed company in the upper end of the other end of spring (6) and pallet (2) It connects, surrounding is welded with connecting plate (7) in the middle part of the spring (6), and recoil mechanism (8), the master are provided on the connecting plate (7) The lower part of body (1) is provided with bindiny mechanism (11), and the bindiny mechanism (11) includes fixed block (111), the fixed block (111) Top offer connector (112), the both ends of the connector (112) are offered to interface (113), described to interface (113) upper end is communicated with horizontal mouth (114), is provided with annular slab (115), the annular slab in the middle part of the connector (112) (115) both ends all extend to the inner cavity to interface (113), and the both ends of annular slab (115) pass through annular bar (1116) with The inner cavity of horizontal mouth (114) is slidably connected, and offers butt hole (117) on the annular slab (115), the lower end of the main body (1) It is fixedly installed with docking column (12), the inner cavity of docking column (12) is provided with plug-in connection (13), and plug-in connection (13) includes The inner cavity of docking groove (131), the docking groove (131) is fixedly installed with little spring (132), one end of the little spring (132) It is fixedly installed with gag lever post (133), the gag lever post (133) and butt hole (117) grafting.

2. a kind of auto magnetorheological damper according to claim 1, it is characterised in that: the inserted link (56) is close to opening (51) lower part of inner cavity one end is 30 degree of inclinations angle, and the other end of the inserted link (56) is fixedly connected with ring pull plate (57), and Ring pull plate (57) is located at the outside of fixed disk (4).

3. a kind of auto magnetorheological damper according to claim 1, it is characterised in that: the upper end of the piston rod (3) It is welded with connecting column (10), the surrounding of the connecting column (10) offers interspersed mouth (9), and between four interspersed mouths (9) staggeredly Setting, the interspersed mouth (9) and inserted link (56) grafting.

4. a kind of auto magnetorheological damper according to claim 1, it is characterised in that: the recoil mechanism (8) includes Pressure ram (81), the pressure ram (81) are located at the upper end of connecting plate (7), and the inner cavity of the fixed disk (4) offers U-type groove (82), the U-type groove (82) is located at the lower end of communication port (52), and the inner cavity of the U-type groove (82) is provided with air bag (83), described It is fixedly connected in the middle part of the middle part of air bag (83) and U-type groove (82) inner cavity, the two sides of U-type groove (82) inner cavity offer inside groove (84), the inner cavity of the inside groove (84) slidably connects sliding block (85), and the sliding block (85) passes through link block and pressure ram (81) It is fixedly connected, one end of the air bag (83) is fixedly connected with to extension bar (86), and to extension bar (86) and connecting plate (7) upper end Side is fixedly connected, and the lower end of the connecting plate (7) is fixedly connected by telescopic rod with the upper end of pallet (2).

5. a kind of auto magnetorheological damper according to claim 2, it is characterised in that: the inserted link (56) includes two Lateral inserted link and two longitudinal inserted links, one end of two lateral inserted links offers jack (14), and the bore of jack (14) Size is identical as two longitudinal sizes of inserted link, the longitudinal direction inserted link and jack (14) grafting.

6. a kind of auto magnetorheological damper according to claim 3, it is characterised in that: the size of the connecting column (10) It is identical as the caliber size of opening (51).

7. a kind of auto magnetorheological damper according to claim 4, it is characterised in that: the air bag (83) and U-type groove (82) inner cavity fits closely, and is located at the left end of air bag (83) to extension bar (86), and the pressure ram (81) is located at air bag (83) Right end, and extension bar (86) and pressure ram (81) are fixedly connected by link block with sliding block (85).

8. a kind of auto magnetorheological damper according to claim 1, it is characterised in that: the docking column (12) and fixation The inner cavity grafting of block (111).