CN212337999U

CN212337999U - Multistage oil pressure shock absorber for locomotive

Info

Publication number: CN212337999U
Application number: CN202020643964.9U
Authority: CN
Inventors: 肖乾; 金菘; 乔翔宇
Original assignee: Yangzhou Huajiao Rail Transit Technology Co ltd
Current assignee: Yangzhou Huajiao Rail Transit Technology Co ltd
Priority date: 2020-04-24
Filing date: 2020-04-24
Publication date: 2021-01-12
Anticipated expiration: 2030-04-24

Abstract

The utility model discloses a multi-stage oil pressure damper for a locomotive, which relates to the technical field of light rail damping, and comprises an oil pressure damper and a connector, wherein the connector is arranged at the bottom of the oil pressure damper in an external nesting mode; the oil pressure bumper shock absorber comprises outer sleeve, inside lining bucket, damping shaft, piston section, damping spring, spring liner and dirt proof boot, the outer sleeve and inside lining bucket top offer with the clearing hole that damping shaft size matches, the damping shaft passes the clearing hole, the damping shaft be located inside one section tip of inside lining bucket with the piston section is connected. The utility model discloses a set up hydraulic shock attenuation and spring shock absorber's combination and realize locomotive with multistage absorbing purpose, can effectively strengthen the shock attenuation effect of bumper shock absorber, avoided the poor problem of single-stage bumper shock absorber buffering effect, simultaneously, the utility model discloses can install the spring additional on traditional bumper shock absorber's basis and realize multistage absorbing purpose, convenient and fast.

Description

Multistage oil pressure shock absorber for locomotive

Technical Field

The utility model relates to a light rail shock attenuation technical field specifically is locomotive is with multistage oil pressure bumper shock absorber.

Background

The advanced technology in the aspects of power control and driving of the light rail forms an automobile with advanced technical principle, new technology and new structure. The hydraulic shock absorber achieves the shock absorption purpose by stretching and compressing a piston rod to reciprocate to form hydraulic damping force, has good shock absorption and damping effects and flexible shock absorption effects, and is a key component for improving the stability, comfort and safety of high-speed running of the light rail vehicle. The main structure of the oil pressure damper comprises a body, an axle center, a bearing, an inner pipe, a piston, a hydraulic shaft, a spring and the like.

The existing light rail oil pressure shock absorber offsets the pressure received by the axle center through hydraulic damping force, so that the shock absorption effect is achieved, oil flows back to the upper portion of the piston through the return hole, in the process, the flowing path of the oil only has a gap, if the instantaneous pressure received by the axle center is too large, the flowing speed of the oil is not matched with the moving speed of the axle center, and the buffer effect of the existing oil pressure shock absorber is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a locomotive is with multistage oil pressure bumper shock absorber possesses multistage absorbing advantage, and it is poor to have solved locomotive shock attenuation effect, easily influences the problem of light rail even running.

The utility model discloses a solve above-mentioned technical problem, provide following technical scheme: the multi-stage oil pressure damper for the locomotive comprises an oil pressure damper and a connector, wherein the connector is arranged at the bottom of the oil pressure damper in an externally nested manner; the connector comprises a nesting fastening ring, a connecting shaft barrel, a locomotive mounting hole, a mounting groove and a lightening hole, wherein the nesting fastening ring is mounted at the top end of the connecting shaft barrel, the locomotive mounting hole is formed in the side surface of the connecting shaft barrel, the mounting groove is formed in the bottom of the connecting shaft barrel, and the lightening hole is dug in the middle of the connecting shaft barrel; the oil pressure damper consists of an outer sleeve, a lining barrel, a damping shaft, a piston section, a damping spring, a spring liner and a dustproof sleeve, wherein the tops of the outer sleeve and the lining barrel are provided with through holes matched with the damping shaft in size, the damping shaft penetrates through the through holes, the end part of one section of the damping shaft, which is positioned in the lining barrel, is connected with the piston section, the outer surface of the bottom of the piston section is connected with the top end of the damping spring, the bottom of the damping spring is placed on the upper surface of the spring liner, and the spring liner is installed on the inner side of the bottom of the lining barrel; the piston section comprises a piston shaft, a bearing clamp, a limiting ring, a sliding seal ring, a protective washer, a mounting bolt and a hydraulic oil cavity, the bottom end of the bearing clamp is arranged at the top of the piston shaft, the top of the bearing clamp is fixedly connected with one end of the damping shaft, a limit ring is arranged at the outer side of the piston shaft and clings to the bottom of the bearing clamp, the sliding seal ring is nested outside the piston shaft and clings to the limiting ring, and is fixed by the mounting bolt, a protective gasket is arranged between the sliding seal ring and the mounting bolt for protecting the sliding seal ring, the maximum diameter of the outer part of the sliding seal ring is matched with the inner size of the lining barrel in a sealing way, but can slide from top to bottom along inside lining bucket inner wall under the exogenic action, the hydraulic pressure oil pocket is the cavity between slip sealing washer bottom and inside lining bucket inner wall bottom, the hydraulic pressure oil pocket is filled with hydraulic oil.

Furthermore, the dustproof sleeve is of an annular structure and is arranged at the position of the through hole in the top of the lining barrel, the diameter of an inner ring of the dustproof sleeve is matched with that of the damping shaft, and the dustproof sleeve is made of elastic rubber materials.

Furthermore, the inner surface of the bearing clamp is provided with an internal thread, the outer part of the bottom end of the damping shaft is provided with an external thread, and the bearing clamp and the damping shaft are tightly connected through the matching of the internal thread and the external thread.

Further, the spacing ring is used for limiting the position of the sliding sealing ring.

Furthermore, the sliding seal ring is of an annular structure, the inner size of the sliding seal ring is matched with the size of the piston shaft, and the sliding seal ring can slide up and down along the piston shaft under the action of external force.

Furthermore, the sliding seal ring can slide downwards along the inner wall of the lining barrel under the action of external force to compress hydraulic oil in the hydraulic oil cavity, and slide upwards along the inner wall of the lining barrel to restore to the initial position when the external force is released.

Furthermore, the damping spring is compressed under the action of external force, and is restored when the external force is released, so that the damping spring and the hydraulic oil are synchronously compressed and restored.

Compared with the prior art, the multistage oil pressure shock absorber for the locomotive has the following beneficial effects:

1. the utility model discloses a set up hydraulic shock attenuation and spring-loaded combination and realize locomotive with multistage absorbing purpose, can effectively strengthen the shock attenuation effect of bumper shock absorber, avoided the poor problem of single-stage bumper shock absorber buffering effect when the light rail uses, simultaneously, the utility model discloses can install the spring additional on traditional light rail bumper shock absorber's the basis and realize multistage absorbing purpose, convenient and fast.

2. The utility model discloses a set up the telescopic form of multilayer, effectively protected the inlayer sleeve, avoid the injury of the outside object of light rail when using, effectively promote the life of bumper shock absorber, ensure the ann's stability of light rail.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a schematic view of a partial structure of the present invention;

fig. 4 is a schematic view of the connector of the present invention.

In the figure: 1-oil damper, 2-connector, 101-outer sleeve, 102-inner lining barrel, 103-damping shaft, 104-piston section, 105-damping spring, 106-spring gasket, 107-dust-proof sleeve, 201-nested fastening ring, 202-connecting shaft barrel, 203-locomotive mounting hole, 204-mounting groove, 205-lightening hole, 1041-bearing clamp, 1042-limiting ring, 1043-sliding seal ring, 1044-protective washer, 1045-mounting bolt, 1046-piston shaft and 1047-hydraulic oil chamber.

Detailed Description

Referring to fig. 1-4, the present invention provides a technical solution: the multistage oil pressure damper for the locomotive comprises an oil pressure damper 1 and a connector 2, wherein the connector 2 is arranged at the bottom of the oil pressure damper 1 in an externally nested manner; the connector 2 comprises a nesting fastening ring 201, a connecting shaft barrel 202, a locomotive mounting hole 203, a mounting groove 204 and a lightening hole 205, wherein the nesting fastening ring 201 is mounted at the top end of the connecting shaft barrel 202, the locomotive mounting hole 203 is formed in the side surface of the connecting shaft barrel, the mounting groove 204 is formed in the bottom of the connecting shaft barrel, and the lightening hole 205 is formed in the middle of the connecting shaft barrel; the oil pressure damper 1 comprises an outer sleeve 101, a lining barrel 102, a damping shaft 103, a piston section 104, a damping spring 105, a spring liner 106 and a dustproof sleeve 107, wherein the tops of the outer sleeve 101 and the lining barrel 102 are provided with through holes matched with the damping shaft 103 in size, the damping shaft 103 penetrates through the through holes, the end part of one section of the damping shaft 103 positioned in the lining barrel 102 is connected with the piston section 104, the outer surface of the bottom of the piston section 104 is connected with the top end of the damping spring 105, the bottom of the damping spring 105 is placed on the upper surface of the spring liner 106, and the spring liner 106 is installed on the inner side of the bottom of the lining; the piston section 104 comprises a piston shaft 1046, a bearing clamp 1041, a limiting ring 1042, a sliding seal ring 1043, a protective washer 1044, a mounting bolt 1045 and a hydraulic oil chamber 1047, the bottom end of the bearing clamp 1041 is mounted at the top of the piston shaft 1046, the top of the bearing clamp 1041 is fixedly connected with one end of the shock absorbing shaft 103, the limiting ring 1042 is mounted at the outer side of the piston shaft 1046 and clings to the bottom of the bearing clamp 1041, the sliding seal ring 1043 is nested outside the piston shaft 1046 and clings to the limiting ring 1042 and is fixed by the mounting bolt 1045, the protective washer 1044 for protecting the sliding seal ring 1043 is further arranged between the sliding seal ring 1043 and the mounting bolt 1045, the maximum diameter of the outer part of the sliding seal ring 1043 is in sealing match with the inner dimension of the lining barrel 102 but can slide up and down along the inner wall of the lining barrel 102 under the external force, the hydraulic oil chamber 1047 is a cavity between, the hydraulic oil chamber 1047 is filled with hydraulic oil. The dustproof sleeve 107 is of an annular structure and is arranged at a through hole at the top of the lining barrel 102, the diameter of an inner ring of the dustproof sleeve is matched with that of the damping shaft 103, and the dustproof sleeve is made of elastic rubber materials. The inner surface of the bearing clamp 1041 is provided with an internal thread, the outer part of the bottom end of the damping shaft 103 is provided with an external thread, and the bearing clamp 1041 and the damping shaft 103 are tightly connected through the matching of the internal thread and the external thread. The limiting ring 1042 is used for limiting the position of the sliding seal ring 1043. The sliding seal ring 1043 has an annular structure, and the inner dimension thereof matches the dimension of the piston shaft 1046, and can slide up and down along the piston shaft 1046 under the application of external force. The sliding seal ring 1043 can slide downwards along the inner wall of the lining barrel 102 under the action of external force to compress hydraulic oil in the hydraulic oil chamber 1047, and slide upwards along the inner wall of the lining barrel 102 to be restored to an initial position when the external force is released. The damper spring 105 is compressed by an external force, and is restored when the external force is released, and acts in synchronization with the compression and restoration of the hydraulic oil. Realize the locomotive with multistage absorbing purpose through setting up hydraulic shock attenuation and spring shock absorber's combination, can effectively strengthen the shock attenuation effect of bumper shock absorber, avoided the poor problem of single-stage bumper shock absorber buffering effect when the light rail uses, simultaneously, the utility model discloses can install the spring additional on traditional bumper shock absorber's basis and realize multistage absorbing purpose, convenient and fast. Through setting up the telescopic form of multilayer, effectively protected the inlayer sleeve, avoid the injury of the outside object of light rail when using, effectively promote the life of bumper shock absorber, ensure the ann's stability of light rail.

When in use, the shock absorber is connected to a position needing shock absorption.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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.

Claims

1. Multistage oil hydraulic shock absorber for locomotive, including oil hydraulic shock absorber (1) and connector (2), its characterized in that: the connector (2) is arranged at the bottom of the oil pressure shock absorber (1) in an outer nesting mode; the connector (2) comprises a nesting fastening ring (201), a connecting shaft barrel (202), a locomotive mounting hole (203), a mounting groove (204) and a lightening hole (205), wherein the nesting fastening ring (201) is mounted at the top end of the connecting shaft barrel (202), the locomotive mounting hole (203) is formed in the side surface of the connecting shaft barrel, the mounting groove (204) is formed in the bottom of the connecting shaft barrel, and the lightening hole (205) is dug in the middle of the connecting shaft barrel; the oil pressure shock absorber (1) consists of an outer sleeve (101), a lining barrel (102), a shock absorption shaft (103), a piston section (104), a shock absorption spring (105), a spring liner (106) and a dustproof sleeve (107), wherein through holes matched with the shock absorption shaft (103) in size are formed in the tops of the outer sleeve (101) and the lining barrel (102), the shock absorption shaft (103) penetrates through the through holes, the end part, located in one section of the inner part of the lining barrel (102), of the shock absorption shaft (103) is connected with the piston section (104), the outer surface of the bottom of the piston section (104) is connected with the top end of the shock absorption spring (105), the bottom of the shock absorption spring (105) is placed on the upper surface of the spring liner (106), and the spring liner (106) is installed on the inner side of the bottom of the lining; the piston section (104) comprises a piston shaft (1046), a bearing clamp (1041), a limiting ring (1042), a sliding seal ring (1043), a protection washer (1044), a mounting bolt (1045) and a hydraulic oil cavity (1047), the bottom end of the bearing clamp (1041) is mounted at the top of the piston shaft (1046), the top of the bearing clamp (1041) is fixedly connected with one end of a damping shaft (103), the limiting ring (1042) is mounted at the outer side of the piston shaft (1046) and clings to the bottom of the bearing clamp (1041), the sliding seal ring (1043) is nested outside the piston shaft (1046) and clings to the limiting ring (1042) and is fixed to the sliding seal ring (1043) by using the mounting bolt (1045), the protection washer (1044) is further arranged between the sliding seal ring (1043) and the mounting bolt (1045) and used for protecting the sliding seal ring (1043), the maximum diameter of the outer part of the sliding seal ring (1043) is in sealing match with the inner size of the barrel, but can slide up and down along inside wall of inside lining bucket (102) under the exogenic action, hydraulic pressure oil pocket (1047) are the cavity between slip sealing washer (1043) bottom and inside wall bottom of inside lining bucket (102), hydraulic pressure oil pocket (1047) are filled with hydraulic oil.

2. The multistage oil pressure damper for a locomotive according to claim 1, characterized in that: the dustproof sleeve (107) is of an annular structure and is arranged at a through hole at the top of the lining barrel (102), the diameter of an inner ring of the dustproof sleeve is matched with that of the damping shaft (103), and the dustproof sleeve is made of elastic rubber materials.

3. The multistage oil pressure damper for a locomotive according to claim 1, characterized in that: the inner surface of the bearing clamp (1041) is provided with internal threads, the outer part of the bottom end of the damping shaft (103) is provided with external threads, and the bearing clamp (1041) and the damping shaft (103) are fixedly connected through the matching of the internal threads and the external threads.

4. The multistage oil pressure damper for a locomotive according to claim 1, characterized in that: the limiting ring (1042) is used for limiting the position of the sliding sealing ring (1043).

5. The multistage oil pressure damper for a locomotive according to claim 1, characterized in that: the sliding seal ring (1043) is of an annular structure, the inner size of the sliding seal ring is matched with that of the piston shaft (1046), and the sliding seal ring can slide up and down along the piston shaft (1046) under the action of external force.

6. The multistage oil pressure damper for a locomotive according to claim 1, characterized in that: the sliding seal ring (1043) can slide downwards along the inner wall of the lining barrel (102) under the action of external force to compress hydraulic oil in the hydraulic oil cavity (1047), and slide upwards along the inner wall of the lining barrel (102) to restore to an initial position when the external force is released.

7. The multistage oil pressure damper for a locomotive according to claim 1, characterized in that: the damping spring (105) is compressed under the action of external force, and is restored when the external force is released, and the damping spring and the compression and restoration of the hydraulic oil act synchronously.