CN214837468U

CN214837468U - Swing arm rotation hydraulic priority valve

Info

Publication number: CN214837468U
Application number: CN202121803547.7U
Authority: CN
Inventors: 陶欢
Original assignee: Dushang Fine Machine Jiaxing Co ltd
Current assignee: Dushang Fine Machine Jiaxing Co ltd
Priority date: 2021-08-04
Filing date: 2021-08-04
Publication date: 2021-11-23
Anticipated expiration: 2031-08-04

Abstract

The utility model discloses a swing arm rotary hydraulic priority valve, which comprises a valve body, wherein an oil cavity is arranged inside the valve body, a connecting side wall is arranged around the oil cavity, the upper side of the valve body is connected with an oil inlet pipe, the left side of the valve body is connected with a priority oil outlet pipe, the right side of the valve body is fixedly connected with a stop block at the inner side of the connecting side wall, the right side of the stop block is provided with a conical surface, the right side of the stop block is laminated with a valve core, the left side of the valve core is conical and is matched with the right conical surface of the stop block, the inner right side of the valve body is provided with a spring mounting groove, the spring is arranged inside the spring mounting groove, the left end of the spring is fixedly connected with the right side of the valve core, the right end of the spring is connected with an adjusting device, the lower side of the valve body is connected with an oil outlet pipe, when the spring force is weakened due to long-time use, the spring compression amount can be adjusted by the adjusting device, making the device more durable.

Description

Swing arm rotation hydraulic priority valve

Technical Field

The utility model relates to a hydrovalve technical field, specific field is a swing arm gyration hydraulic pressure priority valve.

Background

The priority valve, also called "flow priority valve", is also called "steering priority valve", according to the use, essentially similar to a hydraulic governor valve. The hydraulic priority valve has the advantages that part of oil output from an oil pump is preferentially distributed to one oil path, no matter the working pressure of the oil path is high or low, the rest pressure oil is redistributed to other oil paths of a hydraulic system, however, after the hydraulic priority valve is used for a long time, the elastic force of a return spring in the priority valve is weakened, the using effect of the priority valve is influenced, the hydraulic pressure applied by the conventional priority valve cannot be adjusted, and therefore the hydraulic priority valve for the boom rotation is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a swing arm gyration hydraulic pressure priority valve to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a swing arm rotary hydraulic priority valve comprises a valve body, wherein an oil cavity is arranged inside the valve body, a connecting side wall is arranged around the oil cavity, an oil inlet pipe is connected to the upper side of the valve body, the oil inlet pipe extends into the valve body and is tightly connected with the upper side connecting side wall, the oil inlet pipe is communicated with the upper side of the oil cavity, a priority oil outlet pipe is connected to the left side of the valve body, the priority oil outlet pipe extends into the valve body and is tightly connected with the left side connecting side wall, the priority oil outlet pipe is communicated with the left side of the oil cavity, a stop block is fixedly connected to the inner side of the right side connecting side wall, a conical surface is arranged on the right side of the stop block, a valve core is attached to the right side of the stop block, the left side of the valve core is conical and is matched with the right conical surface of the stop block, a spring mounting groove is formed in the right side of the valve body, a spring is arranged inside the spring mounting groove, the left end of the spring is fixedly connected with the right side of the valve core, the right end of the spring is connected with an adjusting device, the lower side of the valve body is connected with an oil outlet pipe, the oil outlet pipe extends into the valve body and is tightly connected with the lower side of the connecting side wall, and the upper end of the oil outlet pipe is located on the right side of the stop block and corresponds to the valve core.

Preferably, the leading flank fixedly connected with mounting panel of valve body, the mounting panel is the rectangular plate, the leading flank of mounting panel is close to four corners department and is equipped with the screw thread mounting hole respectively.

Preferably, adjusting device includes connecting seat, pressure sensor, mount pad, adjusting screw, adjust knob and fixed block, fixed block fixed mounting is on the right side of valve body, the right-hand member fixed connection of connecting seat and spring, pressure sensor installs in the right side of connecting seat, mount pad fixed mounting is on pressure sensor's right side, adjusting screw's left end rotates with the mount pad to be connected, adjusting screw pass the fixed block and with fixed block threaded connection, adjust knob fixed mounting is in adjusting screw's right-hand member, spacing spout has been seted up respectively to the upper and lower both sides of the inside spring mounting groove of valve body, the upper and lower both sides of mount pad stretch into in the spacing spout.

Preferably, the outer ends of the oil inlet pipe, the preferential oil outlet pipe and the oil outlet pipe are respectively connected with a flange plate.

Preferably, the oil inlet pipe, the preferential oil outlet pipe and the joint of the oil outlet pipe and the connecting side wall are respectively provided with a rubber sealing ring.

Compared with the prior art, the beneficial effects of the utility model are that: the pressure between the valve core and the stop block is adjusted through the adjusting device, the applicability is high, and when the spring elasticity is weakened due to long-time use, the compression amount of the spring can be adjusted through the adjusting device, so that the device is more durable.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic sectional view of the front view of the present invention;

fig. 3 is an enlarged schematic view of a portion a in fig. 2.

In the figure: 1. a valve body; 2. an oil chamber; 3. connecting the side walls; 4. an oil inlet pipe; 5. preferentially discharging oil pipes; 6. a stopper; 7. a valve core; 8. a spring mounting groove; 9. a spring; 10. an adjustment device; 1001. a connecting seat; 1002. a pressure sensor; 1003. a mounting seat; 1004. adjusting the screw rod; 1005. adjusting a knob; 1006. a fixed block; 1007. a limiting chute; 11. an oil outlet pipe; 12. mounting a plate; 13. a threaded mounting hole; 14. a flange plate; 15. a rubber seal ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a movable arm rotary hydraulic priority valve comprises a valve body 1, wherein an oil cavity 2 is arranged inside the valve body 1, a connecting side wall 3 is arranged around the oil cavity 2, an oil inlet pipe 4 is connected to the upper side of the valve body 1, the oil inlet pipe 4 extends into the valve body 1 and is tightly connected with the upper side of the connecting side wall 3, the oil inlet pipe 4 is communicated with the upper side of the oil cavity 2, a priority oil outlet pipe 5 is connected to the left side of the valve body 1, the priority oil outlet pipe 5 extends into the valve body 1 and is tightly connected with the left side of the connecting side wall 3, the priority oil outlet pipe 5 is communicated with the left side of the oil cavity 2, hydraulic oil enters the oil cavity 2 from the oil inlet pipe 4 and is discharged through the priority oil outlet pipe 5, a stop block 6 is fixedly connected to the inner side of the connecting side wall 3 at the right side, a conical surface is arranged on the right side of the stop block 6, a valve core 7 is attached to the right side of the stop block 6, the left side of the valve core 7 is conical and is matched with the right conical surface of the stop block 6, a spring installation groove 8 is formed in the right side of the interior of the valve body 1, a spring 9 is arranged in the spring installation groove 8, the left end of the spring 9 is fixedly connected with the right side of the valve core 7, in a normal state, the spring 9 provides a leftward elastic force for the valve core 7, so that the left side of the valve core 7 is tightly attached to the stop block 6, the right end of the spring 9 is connected with an adjusting device 10, the adjusting device 10 can adjust the compression degree of the spring 9, the larger the compression amount of the spring 9 is, the larger the pressure between the valve core 7 and the stop block 6 is, so that the pressure value of the device is adjusted, an oil outlet pipe 11 is connected to the lower side of the valve body 1, the oil outlet pipe 11 extends into the valve body 1 and is tightly connected with the lower side connecting side wall 3, the upper end of the oil outlet pipe 11 is located on the right side of the stop block 6 and corresponds to the valve core 7, when the pressure of hydraulic oil in the oil cavity 2 is larger than the elastic force of the spring 9, the valve core 7 is pushed to the right side by the hydraulic oil in the oil cavity 2, the valve core 7 is not contacted with the stop block 6, and the redundant hydraulic oil enters the oil outlet pipe 11 through a gap between the valve core 7 and the stop block 6 and is discharged through the oil outlet pipe 11, so that the effect of preferential oil outlet of the preferential oil outlet pipe 5 is realized.

Particularly, leading flank fixedly connected with mounting panel 12 of valve body 1, mounting panel 12 is the rectangular plate, the leading flank of mounting panel 12 is close to four corners department and is equipped with screw thread mounting hole 13 respectively, and the settlement of mounting panel 12 makes the installation of this device more convenient, and it can directly to connect fixedly through the bolt.

Specifically, the adjusting device 10 includes a connecting seat 1001, a pressure sensor 1002, a mounting seat 1003, an adjusting screw 1004, an adjusting knob 1005 and a fixing block 1006, the pressure sensor 1002 is electrically connected to an instrument display screen, the pressure sensor 1002 can transmit pressure information to the instrument display screen, the fixing block 1006 is fixedly mounted on the right side of the valve body 1, the connecting seat 1001 is fixedly connected to the right end of the spring 9, the pressure sensor 1002 is mounted on the right side of the connecting seat 1001, the mounting seat 1003 is fixedly mounted on the right side of the pressure sensor 1002, the left end of the adjusting screw 1004 is rotatably connected to the mounting seat 1003, the adjusting screw 1004 passes through the fixing block 1006 and is in threaded connection with the fixing block 1006, the adjusting knob 1005 is fixedly mounted on the right end of the adjusting screw 1004, and the upper and lower sides of the spring mounting groove 8 in the valve body 1 are respectively provided with a limiting chute 1007, the upper side and the lower side of the mounting seat 1003 extend into the limiting sliding groove 1007, the adjusting knob 1005 is rotated, the adjusting knob 1005 drives the adjusting screw 1004 to rotate, due to the thread relation between the adjusting screw 1004 and the fixing block 1006, the adjusting screw 1004 rotates while moving relative to the fixing block 1006, the adjusting screw 1004 moves to drive the mounting seat 1003 to move left and right, the mounting seat 1003 drives the pressure sensor 1002 and the connecting seat 1001 to move, the adjusting screw 1004 is adjusted like the inside of the valve body 1, compression of the spring 9 is achieved, in use, the pressure value is detected through the pressure sensor 1002, and pressure adjustment between the valve core and the stop block 6 is achieved.

Specifically, the outer ends of the oil inlet pipe 4, the preferential oil outlet pipe 5 and the oil outlet pipe 11 are respectively connected with a flange 14, and the flange 14 is set to facilitate the connection between the device and the oil pipe and have high reliability.

Particularly, advance oil pipe 4, give priority to go out oil pipe 5 and go out oil pipe 11 and be connected the junction of lateral wall 3 and be equipped with rubber seal ring 15 respectively, rubber seal ring 15's settlement makes advance oil pipe 4, give priority to go out oil pipe 5 and go out oil pipe 11 and be connected the lateral wall 3 be connected inseparabler, and the gas tightness is good, avoids the oil leak.

The working principle is as follows: the utility model discloses during the use, adjust the pressure between case 7 and the dog 6 through adjusting device 10, adjust suitable back, install this device in the assigned position, will advance oil pipe 4 and oil pump connection, hydraulic oil enters into to the oil pocket 2 by advancing oil pipe 4, then discharge through preferential play oil pipe 5, under the normal condition, spring 9 provides elasticity left for case 7, make the left side of case 7 closely laminate with dog 6, when hydraulic oil pressure in the oil pocket 2 is greater than spring 9's elasticity, hydraulic oil in the oil pocket 2 promotes case 7 to the right side, case 7 and dog 6 contactless, unnecessary hydraulic oil gets into to play oil pipe 11 through the gap between case 7 and the dog 6 this moment, discharge through play oil pipe 11, the effect of preferential play oil pipe 5 has been realized.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model, including circuit connection adopts conventional connection mode among the prior art, does not detailed here again.

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 boom swing hydraulic priority valve includes a valve body (1), characterized in that: the oil-saving valve is characterized in that an oil cavity (2) is arranged inside the valve body (1), a connecting side wall (3) is arranged around the oil cavity (2), an oil inlet pipe (4) is connected to the upper side of the valve body (1), the oil inlet pipe (4) extends into the valve body (1) and is tightly connected with the upper side of the connecting side wall (3), the oil inlet pipe (4) is communicated with the upper side of the oil cavity (2), a preferential oil outlet pipe (5) is connected to the left side of the valve body (1), the preferential oil outlet pipe (5) extends into the valve body (1) and is tightly connected with the connecting side wall (3) at the left side, the preferential oil outlet pipe (5) is communicated with the left side of the oil cavity (2), a check block (6) is fixedly connected to the inner side of the connecting side wall (3) at the right side, a conical surface is arranged on the right side of the check block (6), a valve core (7) is attached to the right side of the check block (6), the left side of the valve core (7) is conical and is matched with the right conical surface of the check block (6), spring mounting groove (8) have been seted up on the inside right side of valve body (1), the inside of spring mounting groove (8) is equipped with spring (9), the left end of spring (9) and the right side fixed connection of case (7), the right-hand member of spring (9) is connected with adjusting device (10), the downside of valve body (1) is connected with out oil pipe (11), stretch into in valve body (1) and with the downside of going out oil pipe (11) connect lateral wall (3) zonulae occludens, the upper end that goes out oil pipe (11) is located the right side of dog (6) and corresponds with case (7).

2. The boom swing hydraulic priority valve according to claim 1, characterized in that: the valve body (1) is characterized in that a mounting plate (12) is fixedly connected to the front side face of the valve body (1), the mounting plate (12) is a rectangular plate, and thread mounting holes (13) are respectively formed in the positions, close to four corners, of the front side face of the mounting plate (12).

3. The boom swing hydraulic priority valve according to claim 1, characterized in that: the adjusting device (10) comprises a connecting seat (1001), a pressure sensor (1002), a mounting seat (1003), an adjusting screw (1004), an adjusting knob (1005) and a fixing block (1006), the fixing block (1006) is fixedly mounted on the right side of the valve body (1), the connecting seat (1001) is fixedly connected with the right end of the spring (9), the pressure sensor (1002) is mounted on the right side of the connecting seat (1001), the mounting seat (1003) is fixedly mounted on the right side of the pressure sensor (1002), the left end of the adjusting screw (1004) is rotatably connected with the mounting seat (1003), the adjusting screw (1004) penetrates through the fixing block (1006) and is in threaded connection with the fixing block (1006), the adjusting knob (1005) is fixedly mounted on the right end of the adjusting screw (1004), and limiting sliding grooves (1007) are respectively formed in the upper side and the lower side of an inner spring mounting groove (8) of the valve body (1), the upper side and the lower side of the mounting seat (1003) extend into the limiting sliding groove (1007).

4. The boom swing hydraulic priority valve according to claim 1, characterized in that: the outer ends of the oil inlet pipe (4), the preferential oil outlet pipe (5) and the oil outlet pipe (11) are respectively connected with a flange plate (14).

5. The boom swing hydraulic priority valve according to claim 1, characterized in that: the joint of the oil inlet pipe (4), the preferential oil outlet pipe (5), the oil outlet pipe (11) and the connecting side wall (3) is respectively provided with a rubber sealing ring (15).