CN217842489U - Inverted shock absorber for locomotive - Google Patents

Abstract

The utility model discloses a shock absorber is invertd to locomotive, the on-line screen storage device comprises a base, an aluminum section of thick bamboo, the front fork pipe, the gas cylinder, inner tube and piston rod, front fork pipe and inner tube are installed on the base, install two governing valves on the base, two governing valves communicate with each other through passageway and inner tube respectively, communicate with each other through the buffering oil circuit between gas cylinder and the backward flow cavity, the oil outlet of two governing valves is established ties respectively in the buffering oil circuit, the shock absorber is when bearing vibrations or impact, piston compression damping oil produces the oil pressure of corresponding pressure, the oil pressure is little, the first valve opening of damping oil accessible reachs the gas cylinder and cushions, the oil pressure is if enough big, overcome the elasticity of second elastic component and/or third elastic component, and can open second and/or third valve opening, increase the circulation, reentrant gas cylinder cushions afterwards, just so need not the adjustment governing valve of regularity, thereby the realization can have the technological effect of gluing wide self-adaptation hardness adjustment to vibrations intensive degree, reduce the regulation operation, and guarantee the travelling comfort of driving.

Description

Inverted shock absorber for locomotive

Technical Field

The utility model relates to a bumper shock absorber, concretely relates to bumper shock absorber is invertd to locomotive.

Background

The inverted shock absorber of the locomotive is mainly used for inhibiting the shock when the spring absorbs the shock and rebounds and the impact from the road surface. When the spring passes through an uneven road surface, although the spring can filter the vibration of the road surface, the spring can still reciprocate, and the shock absorber is used for inhibiting the spring from jumping. The shock absorber is too soft, the vehicle body jumps up and down, and the shock absorber is too hard, so that too much resistance is brought to prevent the spring from working normally. In a retrofit process for a suspension system, a stiff damper is used in conjunction with a stiff spring, which stiffness is related to vehicle weight, so that heavier vehicles typically use stiffer dampers.

And current locomotive bumper shock absorber can dispose the gas cylinder that is equipped with nitrogen gas for the shock of restraining the spring and the effect that improves the shock attenuation buffering, further improve the effect of buffering through the gas cylinder with the built-in shock attenuation oil of piston extrusion in the bumper shock absorber, and can dispose the governing valve on the oil circuit that leads to the gas cylinder, valve opening through the adjustment governing valve adapts to automobile body weight, the road surface of difference is strikeed and corresponding speed is strikeed, the governing valve that can have now can not self-adaptation adjusts its aperture, lead to the bumper shock absorber softness and hardness needs to adjust at any time, be difficult to match the demand of most of road conditions and speed of traveling, lead to frequent adjusting the regulating valve and adjust, the complex operation, if do not adjust and be difficult to improve the travelling comfort.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model aims to provide a locomotive inversion shock absorber that has the adjustment of the self-adaptation soft or hard of gluing width to vibrations intensity to reduce the regulation operation, and guarantee the travelling comfort of driving.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a locomotive inversion shock absorber, includes shock absorber body and gas cylinder, and the gas cylinder is installed shock absorber body side, the inner chamber of shock absorber body communicates with each other with the gas cylinder through the governing valve, and the governing valve is installed on the mounting groove on the shock absorber body, the governing valve includes valve gap, disk seat and needle, and the disk seat is installed in the mounting groove, and the valve gap is installed at the mounting groove open end, the needle spiro union is equipped with first valve opening on the disk seat input terminal surface, and needle one end is close to or inserts first valve opening still be equipped with on the disk seat input end surface with communicating second valve opening of disk seat inner chamber and third valve opening, the subsides of the oil outlet hole end of second valve opening are equipped with the second valve block, the second valve block support through a second elastic component and press the oil outlet hole end of second valve opening, the subsides of the entry end of third valve opening are equipped with the third valve block, the third valve block supports through a third elastic component and presses the entry end of third valve opening.

The input terminal surface epirelief of disk seat is equipped with the bulge loop, and the second valve opening sets up on the input terminal surface of disk seat be equipped with on the bulge loop inner wall with the pressure-bearing groove that the second valve opening is linked together, the third valve opening sets up on the terminal surface of bulge loop, the disk seat periphery wall on the oil outlet of circumference equipartition be equipped with on the disk seat inner wall with the annular that the oil outlet is corresponding, the second valve piece is established in this annular, the export orientation of second valve opening the annular, the second elastic component is established in the annular, this second elastic component supports the second valve piece and presses in the export of second valve opening, the bulge loop with form annular cavity between the interior bottom surface of mounting groove, the third valve block with the third elastic component is placed in this annular cavity be equipped with the pressure-bearing groove that a plurality of annular distributes on the bulge loop inner wall, the bottom surface of third valve block is towards the pressure-bearing groove.

The other end of the valve needle is provided with a conical plug which is close to or inserted into the first valve hole, and oil through grooves which are uniformly distributed on the circumference are formed in the circumferential wall of the valve needle.

The shock absorber body comprises a base, an aluminum cylinder, a front fork tube, an inner tube and a piston rod, wherein the front fork tube and the inner tube are installed on the base, the inner tube is arranged in an inner hole of the front fork tube, a backflow chamber is formed between the inner wall of the front fork tube and the outer wall of the inner tube, the backflow chamber is communicated with the inner hole of the inner tube, the front fork tube can be movably inserted into one end of the aluminum cylinder, the other end of the aluminum cylinder is in threaded connection with an adjusting end cover, the tail end of the piston rod is connected onto the adjusting end cover, the end of the piston rod is connected with a piston, the piston is arranged in the inner tube, the aluminum cylinder is communicated with the front fork tube, one or more adjusting valves are installed on the base, the adjusting valves are communicated with the inner tube through channels respectively, the gas cylinder and the backflow chamber are communicated with each other through a buffering oil way, and oil outlets of the adjusting valves are connected in series in the buffering oil way respectively.

Preceding breeches pipe one end and the one end of inner tube are installed on a piston seat, the piston rod passes from the mesopore of this piston seat, be provided with the spring holder in the hole of aluminium section of thick bamboo, the spring holder with dispose the spring between the piston seat, the hole spiro union of adjusting the end cover has the regulation pole, the inner of adjusting the pole is connected with the sliding seat, set up the guide arm of circumference equipartition on the sliding seat the spring holder with still dispose the guide holder between the sliding seat, be equipped with on the guide holder with the corresponding guiding hole of guide arm, the guide arm passes the guiding hole butt is in on the spring holder.

The piston rod is also provided with a spring guide retaining seat corresponding to the spring, and the spring guide retaining seat is in a cylindrical shape.

The piston rod is further connected with an anti-bottom-touching assembly, the anti-bottom-touching assembly comprises an annular seat and a bottom touching block, hole grooves are uniformly distributed on the upper end face of the bottom touching block, straight through grooves are uniformly distributed on the inner hole wall of the bottom touching block, the hole grooves are communicated with the straight through grooves, annular grooves are formed in the end face of the annular seat and abut against the bottom face of the bottom touching block, and the annular grooves are communicated with the straight through grooves.

The valve cover is provided with a knob, and the knob is in transmission connection with the disc spring seat, so that the disc spring seat is driven to rotate after the knob is rotated.

The second elastic piece is a disc spring, and the third elastic piece is a wavy elastic washer.

The utility model has the advantages that: the bumper shock absorber is when bearing vibrations or impact, the oil pressure of corresponding pressure is produced to piston compression shock attenuation oil, the oil pressure is hour, shock attenuation oil accessible first valve opening reachs the gas cylinder and cushions, if the oil pressure is big enough, overcome the elasticity of second elastic component and/or third elastic component, and can open second valve opening and/or third valve opening, increase the circulation, reentrant gas cylinder cushions afterwards, just so need not regular adjustment governing valve, thereby realize having the technological effect of gluing wide self-adaptation hardness adjustment to vibrations intensity, reduce the regulation operation, and guarantee the travelling comfort of driving.

The present invention will be further described with reference to the accompanying drawings and detailed description.

Drawings

FIG. 1 is a perspective view of an embodiment of the present invention;

FIG. 2 is a block diagram of an embodiment of the present invention;

FIG. 3 is a partial block diagram of FIG. 1 according to an embodiment of the present invention;

fig. 4 is a partial structural view 2 of an embodiment of the present invention.

FIG. 5 is a perspective view of a valve seat according to an embodiment of the present invention;

FIG. 6 is a perspective view of a valve needle in accordance with an embodiment of the present invention;

FIG. 7 is a perspective view of the fitting structure among the valve seat, the elastic sealing ring and the elastic washer according to the embodiment of the present invention;

fig. 8 is an enlarged view of a portion a in fig. 2.

Detailed Description

The present invention is described in detail below with reference to the following examples, which are only used for further illustration of the present invention, and should not be construed as limiting the scope of the present invention.

As shown in fig. 1-7, the embodiment discloses an inverted shock absorber for a locomotive, which comprises a base 1, an aluminum cylinder 2, a front fork 3, an air cylinder 4, an inner tube 5 and a piston rod 6, wherein the aluminum cylinder 2, the front fork 3 and the inner tube 5 are respectively filled with damping oil, the front fork 3 and the inner tube 5 are installed on the base 1, the inner tube 5 is connected to the base through an oil way seat, the inner tube 5 is arranged in an inner hole of the front fork 3, a backflow chamber 7 is formed between the inner wall of the front fork 3 and the outer wall of the inner tube 5, the backflow chamber 7 is communicated with the inner hole of the inner tube 5, after the piston is pressed too much, the damping oil flows the damping oil which cannot be eliminated in the air cylinder into a chamber behind the piston through the backflow chamber 7 for damping vibration, the front fork 3 is movably inserted into one end of the aluminum cylinder 2, the other end of the aluminum cylinder 2 is screwed with an adjusting end cap 8, the tail end of the piston rod 6 is connected to the adjusting end cap 8, the end of the piston rod 6 is connected with a piston 61, the piston 61 is arranged in the inner tube 5, the aluminum tube 2 is communicated with the front fork tube 3, two regulating valves 9 are arranged on the base 1, the two regulating valves 9 are respectively communicated with the inner tube 5 through a channel 10, the air bottle 4 is communicated with the backflow cavity 7 through a buffer oil path 11, oil outlet holes 96 of the two regulating valves 9 are respectively connected in series in the buffer oil path 11, a mounting groove for mounting the regulating valve 9 is arranged on the base 1, the regulating valve 9 comprises a valve seat 91 arranged in the mounting groove and a valve cover 92 connected with the port of the mounting groove, a valve needle 93 is arranged in the valve seat 91, one end of the valve needle 93 is in threaded connection with a middle hole of the valve cover 92, the other end of the valve needle 93 is provided with a conical plug 94, the inlet end face of the valve seat 91 is provided with a first valve hole 95, the conical plug 94 is close to or inserted into the first valve hole 95, the opening of the first valve hole can be controlled by rotating the valve needle, the valve needle is mainly used for regulating the low-speed regulation of the shock absorber, the peripheral wall of the valve needle 93 is provided with oil through grooves 931 which are uniformly distributed circumferentially, the oil outlet holes 96 are uniformly distributed circumferentially on the peripheral wall of the valve seat, the oil outlet holes 96 are arranged in the buffer oil circuit 11, the end surface of the valve seat 91 is convexly provided with a convex ring 97, regularly arranged second valve holes 98 are arranged between the convex ring 97 and the end surface of the valve seat 91, so that the side wall of the second valve hole 98 extends on the inner wall of the convex ring to form a pressure bearing groove 981, the pressure bearing groove 981 is arranged below an elastic sealing ring 20 (the elastic sealing ring is a third annular cavity), the end surface of the convex ring 97 is provided with a third valve hole 99, the second valve hole 98 and the third valve hole 99 are respectively communicated with the inner hole of the valve seat 91, the upper end of the elastic sealing ring 20 is pressed with an elastic gasket 100 (the elastic gasket is a third elastic member) with a wavy peripheral wall, oil pressure can overcome the elastic sealing ring through the pressure bearing groove 981 to open the elastic sealing ring 20 attached to open the third valve hole 99, wherein an annular cavity is formed between the convex ring and the inner bottom surface of the installation groove, a cap is sleeved on the valve seat, and the third valve plate and the elastic gasket and the elastic cap are placed in the elastic gasket and the elastic cap; an annular groove corresponding to the oil outlet is formed in the inner wall of the valve seat 91, the annular groove is communicated with an oil through groove 931 formed in the valve needle 93, a second valve plate 40 is arranged in the annular groove, an annular disc spring 401 (a disc spring is a second elastic element) abuts against the end face of the second valve plate 40, the second valve plate 40 abuts against the outlet end of the second valve hole under the abutting pressure of the disc spring 401, a disc spring seat 402 is arranged corresponding to the disc spring 401, the disc spring seat 402 is connected with the disc spring 401 through a gasket, the disc spring seat 402 is in threaded connection with the inner hole of the valve seat, a rotatable knob 403 is arranged on the valve cover, the knob 403 is in transmission connection with the disc spring seat 402, the disc spring seat 402 is driven to rotate after the knob 403 is rotated, so that the disc spring seat 402 can move back and forth and back, the elastic force of the disc spring 401 is adjusted, the initial pressure of opening of the second valve hole 98 is convenient to adjust, the damper is mainly used for high-speed adjustment of the damper, and damping oil in the inner tube 5 can enter the valve seat 91 through the oil outlet 30 and flow out of the damper valve 9 to buffer the inner tube and flow back to the rear end face of the piston.

One end of the front fork tube 3 and one end of the inner tube 5 are installed on a piston seat 50, the piston rod 6 penetrates through a middle hole of the piston seat 50, a spring seat 60 is arranged in an inner hole of the aluminum cylinder 2, a spring 70 is configured between the spring seat 60 and the piston seat 50, an adjusting rod 80 is screwed in an inner hole of the adjusting end cover 8, the inner end of the adjusting rod 80 is connected with a sliding seat 801, guide rods 90 which are uniformly distributed on the circumference are arranged on the sliding seat 801, a guide seat 21 is further configured between the spring seat 60 and the sliding seat 801, guide holes corresponding to the guide rods 90 are formed in the guide seat 21, and the guide rods 90 penetrate through the guide holes and abut against the spring seat 60. The adjusting rod 80 can be rotated to drive the spring seat 60 to move and adjust through the guide rod 90, so that the hardness of the spring 70 can be adjusted, and the adjustment of the spring 70 is convenient and reliable.

The piston rod 6 is also provided with a spring guide holder 22 corresponding to the spring 70, and the spring guide holder 22 has a cylindrical shape. The spring guide holder 22 can guide the spring 70 during compression and return, and prevent the spring 70 from touching other parts, causing noise and abrasion.

As shown in fig. 8, the piston rod 6 is further connected with a bottom-contact preventing assembly 23, the bottom-contact preventing assembly 23 includes an annular seat 231 and a bottom-contact block 232, an upper end face of the bottom-contact block 232 is provided with hole slots 2321 uniformly distributed circumferentially, an inner hole wall of the bottom-contact block 232 is provided with through slots 2322 uniformly distributed circumferentially, the hole slots 2321 are communicated with the through slots 2322, an end face of the annular seat 231 is provided with an annular groove 2311, the annular seat 231 abuts against a bottom face of the bottom-contact block 232, and the annular groove 2311 is communicated with the through slots 2322. When the shock absorber bears great impact, the bottom contact block 232 can rapidly extrude shock absorption oil, so that the bottom contact end face bears great oil pressure, the oil pressure can enter a gap position between the bottom contact block 232 and the annular seat 231 through the hole groove 2321 and the straight through groove 2322 to be released, the bottom contact block 232 is protected from being impacted, and the service life of the shock absorber is prolonged.

Adopt above-mentioned technical scheme, the bumper shock absorber is when bearing vibrations or impact, piston compression shock attenuation oil produces the oil pressure of corresponding pressure, the oil pressure is hour, the first valve opening of shock attenuation oil accessible reachs the gas cylinder and cushions, if the oil pressure is big enough, overcome the elasticity of second elastic component and/or third elastic component, and can in time open second valve opening and/or third valve opening, increase the circulation, reentrant gas cylinder cushions afterwards, just so need not the adjustment governing valve of regularity, thereby realize having the technological effect who glues wide self-adaptation hardness adjustment to the strong degree of vibrations, reduce the regulation operation, and guarantee the travelling comfort of driving. Meanwhile, the two regulating valves 9 can be adaptively regulated according to the vehicle weight and the speed, so that the opening degree of the first valve hole 95 is changed, and the hardness regulation of the shock absorber is realized.

Finally, since the valve seat 91 is provided with the second valve hole 98 and the third valve hole 99, even if the first valve hole 95 is completely blocked by the valve needle 93, the damping oil can still enter from the second valve hole 98, so as to prevent the first valve hole from being blocked by misoperation, and the shock absorber is too hard and inelastic; and when the bumper shock absorber is bearing great impact, first valve opening has been unable to satisfy fluid or oil pressure as if suddenly, the elasticity of butterfly valve can be overcome to the oil pressure, the second valve opening just can be opened in the twinkling of an eye, simultaneously because the bearing groove that first through-hole 98 extends is located elastic sealing ring 20 below, just so make unnecessary oil pressure also can bounce open elastic sealing ring 20, and then open third valve opening 99, the structure is ingenious reliable, thereby open first with shorter reaction time, the second, the third valve opening, alleviate the oil pressure, buffering vibrations, but the adjustable and the aperture of first valve opening of elasticity of second elastic component is adjusted and is made the circulation control of oil circuit more accurate, thereby can make the regulation that suits according to the road conditions, make high low-speed have high-speed cross country pressure release function, let the navigating mate keep steady comfortable state constantly.

Claims (7)

1. The utility model provides a locomotive inversion shock absorber, includes shock absorber body and gas cylinder, and the gas cylinder is installed shock absorber body side, the inner chamber of shock absorber body communicates with each other with the gas cylinder through the governing valve, and the governing valve is installed on the mounting groove on the shock absorber body, the governing valve includes valve gap, disk seat and needle, and the disk seat is installed in the mounting groove, and the valve gap is installed at the mounting groove open end, the needle spiro union is equipped with first valve opening on the disk seat input terminal surface, and needle one end is close to or inserts first valve opening, its characterized in that: still be equipped with on the disk seat input end face with communicating second valve opening of disk seat inner chamber and third valve opening, the delivery port end subsides of second valve opening are equipped with the second valve block, the second valve piece support through a second elastic component press in the delivery port end of second valve opening, the entry end subsides of third valve opening are equipped with the third valve block, the third valve piece supports through a third elastic component and presses in the entry end of third valve opening corresponds the second elastic component is provided with the dish spring housing, dish spring housing and disk seat hole threaded connection, sets up on the valve gap because the knob, this knob is connected with the transmission of spring dish seat for drive dish spring seat rotates after rotating the knob.

2. The locomotive inversion shock absorber of claim 1, wherein: the input end face epirelief of disk seat is equipped with the bulge loop, and the second valve opening sets up on the input terminal surface of disk seat be equipped with on the bulge loop inner wall with the pressure-bearing groove of second valve opening intercommunication, third valve opening sets up on the terminal surface of bulge loop, the disk seat periphery wall on the oil outlet of circumference equipartition be equipped with on the disk seat inner wall with the annular that the oil outlet is corresponding, the second valve piece is established in this annular, the export orientation of second valve opening the annular, the second elastic component is established in the annular, this second elastic component supports the second valve piece and presses in on the export of second valve opening, the bulge loop with form annular cavity between the interior bottom surface of mounting groove, the third valve piece with the third elastic component is placed in this annular cavity be equipped with the pressure-bearing groove of a plurality of annular distribution on the bulge loop inner wall, the bottom surface of third valve piece is towards the pressure-bearing groove.

3. The locomotive inversion damper of claim 1, wherein: the other end of the valve needle is provided with a conical plug which is close to or inserted into the first valve hole, and oil through grooves which are uniformly distributed on the circumference are formed in the circumferential wall of the valve needle.

4. The locomotive inversion shock absorber of claim 1, wherein: the shock absorber body comprises a base, an aluminum cylinder, a front fork tube, an inner tube and a piston rod, wherein the front fork tube and the inner tube are installed on the base, the inner tube is arranged in an inner hole of the front fork tube, a backflow chamber is formed between the inner wall of the front fork tube and the outer wall of the inner tube, the backflow chamber is communicated with the inner hole of the inner tube, the front fork tube can be movably inserted into one end of the aluminum cylinder, the other end of the aluminum cylinder is in threaded connection with an adjusting end cover, the tail end of the piston rod is connected onto the adjusting end cover, the end of the piston rod is connected with a piston, the piston is arranged in the inner tube, the aluminum cylinder is communicated with the front fork tube, one or more adjusting valves are installed on the base, the adjusting valves are communicated with the inner tube through channels respectively, the gas cylinder and the backflow chamber are communicated with each other through a buffering oil way, and oil outlets of the adjusting valves are connected in series in the buffering oil way respectively.

5. The locomotive inversion shock absorber of claim 4, wherein: preceding breeches pipe one end and the one end of inner tube are installed on a piston seat, the piston rod passes from the mesopore of this piston seat, be provided with the spring holder in the hole of aluminium section of thick bamboo, the spring holder with dispose the spring between the piston seat, the hole spiro union of adjusting the end cover has the regulation pole, the inner of adjusting the pole is connected with the sliding seat, set up the guide arm of circumference equipartition on the sliding seat the spring holder with still dispose the guide holder between the sliding seat, be equipped with on the guide holder with the corresponding guiding hole of guide arm, the guide arm passes the guiding hole butt is in on the spring holder.

6. The locomotive inversion damper of claim 5, wherein: the piston rod is also provided with a spring guide retaining seat corresponding to the spring, and the spring guide retaining seat is cylindrical.

7. The locomotive inversion shock absorber of claim 1, wherein: the second elastic piece is a disc spring, and the third elastic piece is a wavy elastic washer.

Images