CN217898337U

CN217898337U - Hydraulic system for servo motor

Info

Publication number: CN217898337U
Application number: CN202222147972.6U
Authority: CN
Inventors: 衡永标
Original assignee: Anhui Baoermai Heavy Industry Machinery Equipment Co ltd
Current assignee: Anhui Baoermai Heavy Industry Machinery Equipment Co ltd
Priority date: 2022-08-16
Filing date: 2022-08-16
Publication date: 2022-11-25
Anticipated expiration: 2032-08-16

Abstract

The utility model discloses a hydraulic system for servo motor belongs to servo motor technical field. The utility model discloses a hydraulic system for servo motor, including the valve body converter, the one end of valve body converter top is provided with first-order servo valve, and the other end of valve body converter top is provided with second-order servo valve, first-order servo valve includes linking a valve body and accepts the valve body. In order to solve the problem that the cylinder body structure in a hydraulic servo system can generate low-frequency vibration in the operation process, the vibration can not directly influence the structure of the cylinder body, but the vibration can indirectly cause the gap leakage at the joint between the cylinder body and a valve member along with the lapse of time, the metal tube core and the rubber envelopes at two ends can swing in a small amplitude, so that the metal tube core and the rubber envelopes can swing in a matching vibration direction, the rubber envelopes can be attached to the inner wall of an oil nozzle to play a sealing role, and the metal tube core and the rubber envelopes are matched to avoid the leakage caused by the influence of the vibration.

Description

Hydraulic system for servo motor

Technical Field

The utility model relates to a servo motor technical field specifically is a hydraulic system for servo motor.

Background

The hydraulic servo system is used to make the output quantity of the system, such as displacement, speed or force, automatically, quickly and accurately follow the change of the input quantity to change, and at the same time, the output power is greatly amplified.

The cylinder body structure in the existing hydraulic servo system can generate low-frequency vibration in the operation process, the vibration can not directly influence the structure of the cylinder body, but the vibration can indirectly cause the condition that a gap is leaked at the joint between the cylinder body and a valve piece along with the time; therefore, the existing requirements are not met, and a hydraulic system for a servo motor is proposed for the same.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hydraulic system for servo motor can carry out the swing of small range between the rubber big envelope at metal tube core and both ends, can cooperate the direction of vibration to swing like this, and the rubber big envelope then can laminate and play a sealed effect at the inner wall of glib talker, and both cooperations are avoided because of receiving the leakage that vibrations influence leads to, can solve the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a hydraulic system for servo motor, includes the valve body converter, the one end of valve body converter top is provided with first-order servo valve, and the other end of valve body converter top is provided with the second order servo valve, first-order servo valve is including linking a valve body and accepting the valve body, and links the top that a valve body set up accepting the valve body, even a valve body with accept the valve body and pass through the screw connection, and accept valve body and valve body converter built-up connection, the top of first-order servo valve one end is provided with the throttle tap-off ware, and the top of second-order servo valve one end is provided with logical axle tap-off ware, one side of valve body converter is provided with the decompression and advances the pipe, and decompression indentation pipe and valve body converter pass through female connection.

Preferably, two ends of the valve body converter are provided with four input valve ports, and the surface of one side of the valve body converter is provided with four output valve ports.

Preferably, the surface of the top of the valve converter is provided with eight tapping nozzles, the input valve port is communicated with the tapping nozzles and the output valve port, and the tapping nozzles are internally provided with a port shaft tube which is connected with the tapping nozzles in a combined manner.

Preferably, the interface shaft tube comprises a rubber sleeve and a metal tube core, the rubber sleeve is arranged at two ends of the metal tube core, the rubber sleeve is connected with the metal tube core through a clamping groove, and the interface shaft tube is connected with the first-order servo valve and the second-order servo valve in a combined manner.

Preferably, one end of each of the throttling tapping device and the through shaft tapping device is provided with an external interface, the bottoms of the throttling tapping device and the through shaft tapping device are provided with adapter sleeve shafts, and the adapter sleeve shafts are fixedly connected with the throttling tapping device and the through shaft tapping device.

Preferably, the inside of switching sleeve axle is provided with one-way valve rod, and one-way valve rod and switching sleeve axle telescopic connection, the surface of switching sleeve axle is provided with the wedge slot, and the wedge is inserted and is located one-way valve rod all around.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses, the interface central siphon comprises rubber envelope and metal tube core two parts, wherein the rubber envelope is located the both ends of metal tube core, and metal tube core itself adopts hollow design, the metal tube core is fixed between valve body converter and servo valve through the rubber envelope at both ends, the medium circulates through the metal tube core, can carry out the swing of small amplitude between the rubber envelope at metal tube core and both ends, can cooperate the direction of vibrations to swing like this, and the rubber envelope can laminate and play a sealed effect at the inner wall of glib talker, both cooperate and avoid because of receiving the leakage that vibrations influence lead to;

2. the utility model discloses, throttle tap ware and logical axle tap ware are installed respectively in the top of first-order servo valve and second-order servo valve, it realizes firm the connection to realize through the switching sleeve spindle of tap ware bottom between tap ware and the servo valve, the internally mounted of switching sleeve spindle has a set of one-way valve rod, one-way valve rod will inwards shrink after switching sleeve spindle and valve body connection, alright be fixed with being connected between realization tap ware and the valve body this moment, and there is wedge slot structure on the surface design of switching sleeve spindle, the butt joint in-process need be connected the corresponding region on wedge slot and the valve body, can reduce the influence of vibrations to valve body and tap ware like this.

Drawings

FIG. 1 is an overall front view of the present invention;

FIG. 2 is a schematic structural view of a valve body converter according to the present invention;

fig. 3 is a schematic structural view of the interface shaft tube of the present invention;

fig. 4 is a schematic structural view of the throttle tap of the present invention.

In the figure: 1. a valve body converter; 2. a first order servo valve; 3. a second order servo valve; 4. a throttle tap; 5. a through shaft tap; 6. decompressing the inlet pipe; 101. an output valve port; 102. an input valve port; 103. tapping an oil nozzle; 104. an interface shaft tube; 1041. a rubber sleeve; 1042. a metal tube core; 201. a coupling valve body; 202. a receiving valve body; 401. a transfer sleeve shaft; 402. a one-way valve stem; 403. a wedge-shaped slot.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides an embodiment: a hydraulic system for a servo motor comprises a valve converter 1, a first-order servo valve 2 is arranged at one end above the valve converter 1, a second-order servo valve 3 is arranged at the other end above the valve converter 1, the first-order servo valve 2 comprises a connecting shaft valve body 201 and a bearing valve body 202, the connecting shaft valve body 201 is arranged above the bearing valve body 202, the connecting shaft valve body 201 is connected with the bearing valve body 202 through a screw, the bearing valve body 202 is connected with the valve converter 1 in a combined mode, a throttling tap-off device 4 is arranged above one end of the first-order servo valve 2, a through shaft tap-off device 5 is arranged above one end of the second-order servo valve 3, a decompression inlet pipe 6 is arranged on one side of the valve converter 1, and the decompression inlet pipe 6 is connected with the valve converter 1 through an internal thread, the two ends of the valve body converter 1 are provided with input valve ports 102, the number of the input valve ports 102 is four, the surface of one side of the valve body converter 1 is provided with output valve ports 101, the number of the output valve ports 101 is four, the surface of the top of the valve body converter 1 is provided with tapping oil nipples 103, the number of the tapping oil nipples 103 is eight, the input valve ports 102 are communicated with the tapping oil nipples 103 and the output valve ports 101, interface shaft tubes 104 are arranged in the tapping oil nipples 103, the interface shaft tubes 104 are combined and connected with the tapping oil nipples 103, the interface shaft tubes 104 comprise rubber envelopes 1041 and metal tube cores 1042, the rubber envelopes 1041 are arranged at the two ends of the metal tube cores 1042, the rubber envelopes 1041 are connected with the metal tube cores 1042 through clamping grooves, and the interface shaft tubes 104 are combined and connected with first-order servo valves 2 and second-order servo valves 3;

the valve body converter 1 is communicated with the servo valve through the top tapping oil nozzle 103, an interface shaft tube 104 is installed inside the tapping oil nozzle 103, the interface shaft tube 104 is composed of two parts, namely a rubber sleeve 1041 and a metal tube core 1042, wherein the rubber sleeve 1041 is located at two ends of the metal tube core 1042, the metal tube core 1042 is in a hollow design, the metal tube core 1042 is fixed between the valve body converter 1 and the servo valve through the rubber sleeves 1041 at the two ends, media are circulated through the metal tube core 1042, small-amplitude swinging can be performed between the metal tube core 1042 and the rubber sleeves 1041 at the two ends, so that the metal tube core can swing in a vibration direction, the rubber sleeve 1041 can be attached to the inner wall of the oil nozzle to play a sealing role, and the two parts are matched to avoid leakage caused by vibration.

Referring to fig. 4, one end of each of the throttle tap 4 and the through-shaft tap 5 is provided with an external port, the bottoms of the throttle tap 4 and the through-shaft tap 5 are provided with adapter sleeves 401, the adapter sleeves 401 are fixedly connected with the throttle tap 4 and the through-shaft tap 5, one-way valve rods 402 are arranged inside the adapter sleeves 401, the one-way valve rods 402 are telescopically connected with the adapter sleeves 401, the outer surfaces of the adapter sleeves 401 are provided with wedge-shaped slots 403, and the wedges are inserted around the one-way valve rods 402;

throttle tap 4 and through-shaft tap 5 are installed respectively in first order servo valve 2 and second order servo valve 3's top, realize firm the connection through adapter sleeve shaft 401 of tap bottom between tap and the servo valve, the internally mounted of adapter sleeve shaft 401 has a set of one-way valve rod 402, one-way valve rod 402 will be inwards shrink after adapter sleeve shaft 401 is connected with the valve body, alright realize being connected between tap and the valve body fixed this moment, and there is wedge slot 403 structure on adapter sleeve shaft 401's surface design, it needs to be connected wedge slot 403 and the corresponding region on the valve body to dock in-process, can reduce the influence of vibrations to valve body and tap like this.

According to the working principle, a first-order servo valve 2 is arranged at one end above a valve converter 1, a second-order servo valve 3 is arranged at the other end above the valve converter 1, the valve converter 1 is communicated with the servo valve through a tapping oil nozzle 103 at the top, an interface shaft tube 104 is arranged inside the tapping oil nozzle 103, the interface shaft tube 104 is composed of a rubber sleeve 1041 and a metal tube core 1042, the rubber sleeve 1041 is located at two ends of the metal tube core 1042, the metal tube core 1042 is of a hollow design, the metal tube core 1042 is fixed between the valve converter 1 and the servo valve through the rubber sleeves 1041 at the two ends, a medium flows through the metal tube core 1042, small-amplitude swing can be carried out between the metal tube core 1042 and the rubber sleeves 1041 at the two ends, the metal tube core 1042 can swing in a vibration direction, the rubber sleeve 1041 can be attached to the inner wall of the oil nozzle to play a sealing role, and the rubber sleeve 1041 can be matched with each other to avoid leakage caused by vibration.

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. A hydraulic system for a servo motor, comprising a valve body converter (1), characterized in that: a first-order servo valve (2) is arranged at one end above the valve body converter (1), a second-order servo valve (3) is arranged at the other end above the valve body converter (1), the first-order servo valve (2) comprises a connecting shaft valve body (201) and a bearing valve body (202), the connecting shaft valve body (201) is arranged above the bearing valve body (202), the connecting shaft valve body (201) is connected with the bearing valve body (202) through screws, the bearing valve body (202) is connected with the valve body converter (1) in a combined mode, a throttling tap (4) is arranged above one end of the first-order servo valve (2), a through shaft tap (5) is arranged above one end of the second-order servo valve (3), a decompression inlet pipe (6) is arranged at one side of the valve body converter (1), the decompression inlet pipe (6) is connected with the valve body converter (1) through an internal thread, input valve ports (102) are arranged at two ends of the valve body converter (1), four input valve ports (102) are arranged, an output valve port (101) is arranged on the surface at one side of the valve body converter (1), four oil nozzles (103) are arranged on the top of the converter, and eight oil nozzles (103) are connected with the input valve ports (103), the inside of shunting glib talker (103) is provided with interface central siphon (104), and interface central siphon (104) and shunting glib talker (103) built-up connection, interface central siphon (104) include rubber envelope (1041) and metal tube core (1042), and rubber envelope (1041) sets up the both ends at metal tube core (1042), rubber envelope (1041) passes through the draw-in groove with metal tube core (1042) and is connected, interface central siphon (104) and first order servovalve (2) and second order servovalve (3) built-up connection.

2. A hydraulic system for a servo motor according to claim 1, wherein: the one end of throttle tap ware (4) and logical axle tap ware (5) all is provided with the external tapping, the bottom of throttle tap ware (4) and logical axle tap ware (5) all is provided with adapter sleeve axle (401), and adapter sleeve axle (401) and throttle tap ware (4) and logical axle tap ware (5) fixed connection.

3. A hydraulic system for a servo motor according to claim 2, wherein: the inside of adapter sleeve axle (401) is provided with one-way valve rod (402), and one-way valve rod (402) and adapter sleeve axle (401) telescopic connection, the surface of adapter sleeve axle (401) is provided with wedge slot (403), and the wedge is inserted and is located all around one-way valve rod (402).