CN209838814U - Full-hydraulic steering gear of integral combination valve with filtering capability - Google Patents

Abstract

The utility model relates to a steering gear technical field especially relates to an all-hydraulic steering gear of integral combination valve with filtering capability. The steering valve body and the connecting flange are integrally cast, so that the oil leakage phenomenon cannot occur at the connecting flange part of the steering valve body; the one-way filtering combination valve device is arranged at the oil inlet of the steering gear, so that the one-way filtering combination valve device not only can play a role of a one-way valve, but also can play a role of filtering hydraulic oil by arranging a filter screen inside the steering gear, and the problems that the traditional steering gear does not have a hydraulic oil filtering function, the hydraulic oil is more in impurity, a pipeline is easy to block, the hydraulic resistance is increased, and the hydraulic accuracy, the stability and the service life are influenced are solved; after the unidirectional filtering combination valve device is used for a period of time, the unidirectional filtering combination valve device is taken out, the sealing cover is opened, and a new filter screen is replaced, so that the cleaning operation is simple and convenient.

Description

Full-hydraulic steering gear of integral combination valve with filtering capability

Technical Field

The utility model relates to a steering gear technical field especially relates to an all-hydraulic steering gear of integral combination valve with filtering capability.

Background

In the production process of the hydraulic steering gear, in order to facilitate demoulding and later assembly, the steering valve body and the connecting flange above the steering valve body are generally arranged separately, the steering valve body and the connecting flange are sealed by a rubber gasket, and when the hydraulic steering gear is used for a long time, the sealing rubber gasket is aged and broken, so that the oil leakage phenomenon can occur, and the use is influenced; traditional steering gear does not have hydraulic oil filtering capability, and the hydraulic pressure pipe blocks up the pipeline with the debris that inside valve body wearing and tearing produced very easily, and hydraulic oil impurity is more and can influence hydraulic system's accuracy, motion stationarity and life.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide an integral combination valve full hydraulic steering gear with filtering function aiming at the technical defects, which adopts the steering valve body and the connecting flange as an integral casting molding, so that the oil leakage phenomenon can not occur at the connecting flange part of the steering valve body; the one-way filtering combination valve device is arranged at the oil inlet of the steering gear, so that the one-way filtering combination valve device not only can play a role of a one-way valve, but also can play a role of filtering hydraulic oil by arranging a filter screen inside the steering gear, and the problems that the traditional steering gear does not have a hydraulic oil filtering function, the hydraulic oil is more in impurity, a pipeline is easy to block, the hydraulic resistance is increased, and the hydraulic accuracy, the stability and the service life are influenced are solved; after the unidirectional filtering combination valve device is used for a period of time, the unidirectional filtering combination valve device is taken out, the sealing cover is opened, and a new filter screen is replaced, so that the cleaning operation is simple and convenient.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: comprises a steering valve body, a sealing flange and a one-way filtering combination valve device; the sealing flange is fixedly arranged at the bottom of the steering valve body in a sealing way; an oil inlet is formed in one side of the steering valve body; the one-way filtering combination valve device is arranged at the position of the oil inlet; the one-way filtering combination valve device comprises a one-way valve body, a conical valve core, a spring and a sealing cover; the top of the one-way valve body is provided with a sealing thread; the one-way valve body is fixed inside the oil inlet through sealing threads.

Further optimizing the technical scheme, the top of the steering valve body is provided with a connecting flange; the connecting flange and the steering valve body are integrally cast.

Further optimizing the technical scheme, the bottom of the one-way valve body is provided with a partition table; the sealing cover is fixedly connected with the partition table through threads.

Further optimizing the technical scheme, the bottom end in the sealing cover is provided with a filter screen; the filter screen is tightly pressed and fixed in the sealing cover through the bottom of the partition table; a plurality of through holes are uniformly formed in the periphery of the bottom of the sealing cover.

Further optimizing the technical scheme, the middle part of the one-way valve body is provided with a mounting hole in a through way; the conical valve core is arranged in the one-way valve body; the conical valve core and the mounting hole are sealed; the spring is arranged between the filter screen and the conical valve core.

Compared with the prior art, the utility model has the advantages of it is following: 1. the steering valve body and the connecting flange are integrally cast, so that the oil leakage phenomenon cannot occur at the connecting flange part of the steering valve body; 2. the one-way filtering combination valve device is arranged at the oil inlet of the steering gear, so that the one-way filtering combination valve device not only can play a role of a one-way valve, but also can play a role of filtering hydraulic oil by arranging a filter screen inside the steering gear, and the problems that the traditional steering gear does not have a hydraulic oil filtering function, the hydraulic oil is more in impurity, a pipeline is easy to block, the hydraulic resistance is increased, and the hydraulic accuracy, the stability and the service life are influenced are solved; 3. after the unidirectional filtering combination valve device is used for a period of time, the unidirectional filtering combination valve device is taken out, the sealing cover is opened, and a new filter screen is replaced, so that the cleaning operation is simple and convenient.

Drawings

Fig. 1 is a schematic view of the overall installation structure of an integral combination valve full hydraulic steering gear with a filtering function.

Fig. 2 is a schematic diagram of a one-way filtering combination valve device of a full hydraulic steering gear of an integral combination valve with a filtering function.

Fig. 3 is a bottom structure schematic diagram of a one-way filtering combination valve device of an integral combination valve full hydraulic steering gear with a filtering function.

Fig. 4 is an exploded view of the internal structure of a one-way filtering combination valve device of a full hydraulic steering gear of an integral combination valve with a filtering function.

FIG. 5 is a cross-sectional view showing the internal structure of a one-way filtering combination valve device of the full hydraulic diverter of the integral combination valve with filtering function.

In the figure: 1. a steering valve body; 101. an oil inlet; 102. a connecting flange; 2. sealing the flange; 3. a one-way filtering combination valve device; 301. a check valve body; 302. a conical valve core; 303. a spring; 304. sealing the cover; 305. sealing the threads; 306. separating the platform; 307. filtering with a screen; 308. a through hole; 309. and (7) installing holes.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

The first embodiment is as follows: referring to fig. 1-5, an integral combination valve full hydraulic steering gear with filtering function is characterized in that: comprises a steering valve body 1, a sealing flange 2 and a one-way filtering combination valve device 3; the sealing flange 2 is fixedly arranged at the bottom of the steering valve body 1 in a sealing way; an oil inlet 101 is formed in one side of the steering valve body 1; the one-way filtering combination valve device 3 is arranged at the position of the oil inlet 101; the one-way filtering combination valve device 3 comprises a one-way valve body 301, a conical valve core 302, a spring 303 and a sealing cover 304; the top of the one-way valve body 301 is provided with a sealing thread 305; the check valve body 301 is fixed inside the oil inlet 101 through a sealing thread 305; the top of the steering valve body 1 is provided with a connecting flange 102; the connecting flange 102 and the steering valve body 1 are integrally cast and molded; the bottom of the one-way valve body 301 is provided with a partition table 306; the sealing cover 304 is fixedly connected with the partition table 306 through threads; a filter screen 307 is arranged at the bottom end inside the sealing cover 304; the filter screen 307 is fixed inside the cover 304 by the bottom of the partition 306; a plurality of through holes 308 are uniformly formed in the periphery of the bottom of the sealing cover 304; the middle part of the one-way valve body 301 is provided with a mounting hole 309 in a penetrating way; the conical valve core 302 is arranged inside the one-way valve body 301; the conical valve core 302 and the mounting hole 309 are sealed; the spring 303 is mounted between the screen 307 and the conical poppet 302.

In use, in the step one, as shown in fig. 1 to 5, the unidirectional filtering combination valve device 3 is installed at the position of the oil inlet 101 of the steering valve body 1 through the sealing thread 305, so that the sealing cover 304 faces inwards, the unidirectional valve body 301 faces outwards, and the unidirectional valve body 301 is screwed inside the oil inlet 101 through the action of the inner hexagonal tool and the installation hole 309 in the installation process; after the whole system of the hydraulic steering gear is installed, when a hydraulic pump works, hydraulic oil can reach the position of an installation opening through the oil inlet 101, when the oil pressure reaches a certain degree, the hydraulic oil can push the conical valve core 302 to move downwards, so that the installation hole 309 is opened, and the conical valve core 302 can compress the spring 303 when moving downwards; at the moment, hydraulic oil enters the one-way valve body 301 through the mounting hole 309 and is finally discharged through the filter screen 307 and the through hole 308 on the sealing cover 304 in sequence; when the hydraulic part works for a long time, the inner wall of the hydraulic pipe, the inner wall of the check valve and a hydraulic element are abraded, the hydraulic oil is attached with impurities, the density of the hydraulic oil is changed, the accuracy of the hydraulic execution part is influenced, the hydraulic execution part even blocks a pipeline when the impurities in the hydraulic oil are more, the hydraulic execution part vibrates, the use is influenced, and the service life is influenced; the design of this device, when hydraulic oil flow through filter screen 307, impurity can filter inside check valve body 301, and hydraulic oil is in clean state all the time at the course of the work, and hydraulic pressure original paper work is normal.

Step two, as shown in fig. 1 to 5, when the hydraulic component is cleaned after working for a period of time, closing the hydraulic system, pulling out an oil inlet pipe of the steering gear, taking out the one-way filtering combination valve device 3 by using a hexagonal tool, rotating the sealing cover 304 counterclockwise, taking the sealing cover 304 down from the lower part of the partition 306 of the one-way valve body 301, pulling out the filter screen 307 inside the sealing cover 304, replacing a new filter screen 307, screwing the sealing cover 304 at the bottom of the one-way valve body 301, and when the sealing cover 304 is screwed at the bottom of the one-way valve body 301, leaving a gap in the height direction between the top of the sealing cover 304 and the top of the partition 306, which can prove that the filter screen 307 is pressed inside the sealing cover 304 at the bottom of the partition 306, completing cleaning of the one-way filtering combination valve device 3, and finally installing the sealing cover at the oil inlet 101; when the check valve is cleaned, the whole check valve does not need to be thrown away and replaced, and only the internal filter screen 307 is replaced, so that the cleaning cost is reduced, and the hydraulic maintenance cost is low; the steering valve body 1 and the connecting flange 102 are integrally cast, so that the oil leakage phenomenon does not occur at the connecting flange 102 of the steering valve body 1.

The utility model discloses a control mode comes automatic control through the controller, and the control circuit of controller can realize through the simple programming of technical staff in this field, belongs to the common general knowledge in this field, and the utility model discloses mainly be used for protecting mechanical device, so the utility model discloses no longer explain control mode and circuit connection in detail.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims (5)

1. The utility model provides an all-hydraulic steering gear of integral combination valve with filtering capability which characterized in that: comprises a steering valve body (1), a sealing flange (2) and a one-way filtering combination valve device (3); the sealing flange (2) is fixedly arranged at the bottom of the steering valve body (1) in a sealing way; an oil inlet (101) is formed in one side of the steering valve body (1); the one-way filtering combination valve device (3) is arranged at the position of the oil inlet (101); the one-way filtering combination valve device (3) comprises a one-way valve body (301), a conical valve core (302), a spring (303) and a sealing cover (304); the top of the one-way valve body (301) is provided with a sealing thread (305); the check valve body (301) is fixed inside the oil inlet (101) through a sealing thread (305).

2. The full hydraulic steering gear with the integral combination valve and the filtering function as claimed in claim 1, is characterized in that: the top of the steering valve body (1) is provided with a connecting flange (102); the connecting flange (102) and the steering valve body (1) are integrally cast and molded.

3. The full hydraulic steering gear with the integral combination valve and the filtering function as claimed in claim 1, is characterized in that: the bottom of the one-way valve body (301) is provided with a partition table (306); the cover (304) and the partition table (306) are fixedly connected through threads.

4. The full hydraulic steering gear with the integral combination valve and the filtering function as claimed in claim 3, is characterized in that: a filter screen (307) is arranged at the bottom end inside the sealing cover (304); the filter screen (307) is fixed inside the sealing cover (304) through the bottom of the partition table (306) in a pressing mode; the periphery of the bottom of the sealing cover (304) is uniformly provided with a plurality of through holes (308).

5. The full hydraulic steering gear with the integral combination valve and the filtering function as claimed in claim 4, is characterized in that: the middle part of the one-way valve body (301) is provided with a mounting hole (309) in a penetrating way; the conical valve core (302) is arranged inside the one-way valve body (301); the conical valve core (302) is sealed with the mounting hole (309); the spring (303) is mounted between the screen (307) and the conical poppet (302).