CN218440740U - Joint device, hydraulic system, and working machine - Google Patents
Joint device, hydraulic system, and working machine Download PDFInfo
- Publication number
- CN218440740U CN218440740U CN202222957236.7U CN202222957236U CN218440740U CN 218440740 U CN218440740 U CN 218440740U CN 202222957236 U CN202222957236 U CN 202222957236U CN 218440740 U CN218440740 U CN 218440740U
- Authority
- CN
- China
- Prior art keywords
- circumferential groove
- valve body
- valve
- valve core
- hydraulic system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Joints Allowing Movement (AREA)
Abstract
The utility model relates to the technical field of hydraulic systems of operating machinery, and provides a joint device, a hydraulic system and operating machinery, which comprises a valve body, wherein the inner side wall of the valve body is provided with a first circumferential groove and a second circumferential groove, and the valve body is provided with a first opening communicated with the first circumferential groove and a second opening communicated with the second circumferential groove; the valve core is matched with the valve body, a third circumferential groove is formed in the valve core, and the length of the third circumferential groove is larger than the distance between the first circumferential groove and the second circumferential groove; the rotating piece comprises a connecting part connected with the valve body and a thread guide part in threaded connection with the valve core, and the thread guide part is rotationally connected with the connecting part so that the valve core can slide relative to the valve body along the axial direction and the radial displacement is limited; the utility model discloses a piecing devices can adjust flow and velocity of flow, and the hydraulic cylinder takes place to vibrate under avoiding intermittent type nature fuel feeding or the oil return state.
Description
Technical Field
The utility model relates to a hydraulic system technical field of operation machinery especially relates to a piecing devices, hydraulic system and operation machinery.
Background
In working machines having a hydraulic system, such as excavators, drilling machines, strip mills, etc., the working devices in the hydraulic system are generally hydraulic cylinders, which are connected to an oil source and a hydraulic pump through a joint device and pipes in the entire hydraulic system. Because the hydraulic cylinder has the state of intermittent oil supply or oil return in the working process, the hydraulic cylinder vibrates, the work of the hydraulic cylinder is unstable, and the service life of the hydraulic cylinder is shortened.
Aiming at the technical problem, the structure of an improved hydraulic cylinder is mostly adopted or a valve bank for adjusting the flow rate is additionally arranged on an oil pipeline of a hydraulic system in the prior art, so that the use cost is greatly increased, the assembly is complex, and the failure rate of the hydraulic system is increased. Therefore, how to solve the problem of the prior art that the hydraulic cylinder vibrates in the intermittent oil supply or oil return state in a high-efficiency, low-failure rate and low-cost manner is a problem which needs to be solved at present.
SUMMERY OF THE UTILITY MODEL
The utility model provides a piecing devices, hydraulic system and operation machinery for solve among the prior art pneumatic cylinder and take place the defect that vibrates under the state of intermittent type nature fuel feeding or oil return, realize adjusting flow and velocity of flow through piecing devices, avoid the pneumatic cylinder to take place to vibrate in the course of the work.
The utility model provides a joint device, include:
the valve comprises a valve body, wherein a first circumferential groove and a second circumferential groove are formed in the inner side wall of the valve body, and a first opening communicated with the first circumferential groove and a second opening communicated with the second circumferential groove are formed in the valve body;
the valve core is matched with the valve body, a third circumferential groove is formed in the valve core, and the length of the third circumferential groove is larger than the distance between the first circumferential groove and the second circumferential groove;
the rotating piece comprises a connecting part connected with the valve body and a thread guide part in threaded connection with the valve core, and the thread guide part is in rotary connection with the connecting part so that the valve core can slide relative to the valve body along the axial direction and the radial displacement is limited;
wherein, when the spool slides relative to the valve body, the notch of the third circumferential groove moves between the notches of the first and second circumferential grooves to adjust the opening degrees of the first and second openings.
According to the utility model provides a pair of joint device, connecting portion be with the turbine dish that the valve body is connected, the screw thread guide part be with case threaded connection's turbine, the turbine with the turbine dish rotates to be connected.
According to the utility model provides a pair of joint device, the inside wall of turbine be equipped with case threaded connection's screw thread.
According to the utility model provides a pair of joint device, circumference is equipped with the scale on the turbine dish.
According to the utility model provides a pair of piecing devices, be equipped with a pair of sealing washer in the valve body, first circumferential groove the second circumferential groove with the third circumferential groove all is located a pair ofly between the sealing washer.
According to the utility model provides a pair of joint device, it is a pair of the sealing washer all inlays to be located on the inside wall of valve body.
According to the utility model provides a pair of joint device, the case is kept away from the one end of rotating member runs through the valve body.
The utility model also provides a hydraulic system, including oil source, power device, equipment and piecing devices, the oil source passes through piecing devices and pipeline with equipment is connected, power device set up in on the pipeline.
According to the utility model provides a pair of hydraulic system, equipment is at least one pneumatic cylinder.
The utility model also provides an operating machine, including foretell hydraulic system.
The utility model provides a pair of piecing devices, hydraulic system and operation machinery have following technological effect:
1. the connecting part and the thread guide part on the rotating part are respectively connected with the valve body and the valve core, the thread guide part is rotated to enable the rotating part to rotate relative to the connecting part, under the threaded connection matching of the thread guide part and the valve core, the thread guide part can drive the valve core to axially slide relative to the valve body and limit radial displacement when rotating, in the sliding process of the valve core, the third circumferential groove moves between the first circumferential groove and the second circumferential groove to enable liquid flow to circulate among the first circumferential groove, the second circumferential groove and the third circumferential groove, and in the moving process of the edge of the third circumferential groove at the first opening and the second opening, the opening degrees of the first opening and the second opening can be changed, so that the flow and the flow velocity of the first opening and the second opening can be adjusted, and the designs are all integrated on the joint device of the hydraulic system;
2. scales are circumferentially arranged on the turbine disc, and the sizes of the flow channels at the joint of the first circumferential groove, the second circumferential groove and the third circumferential groove in the current state can be conveniently determined by reading the scales;
3. a pair of sealing rings is arranged in the valve body and located on two sides of the first circumferential groove and the second circumferential groove, and meanwhile, in the relative sliding process of the valve core and the valve body, the third circumferential groove moves in the area between the pair of sealing rings, so that hydraulic oil can be prevented from leaking.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings required for the embodiments or the prior art descriptions, and obviously, the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a front view of a joint arrangement provided by the present invention;
fig. 2 is a side view of a connector device provided by the present invention.
Reference numerals:
1: a valve body; 2: a first circumferential groove; 3: a second circumferential groove; 4: a first opening; 5: a second opening; 6: a valve core; 7: a third circumferential groove; 8: a connecting portion; 9: a screw guide; 10: and (5) sealing rings.
Detailed Description
To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are 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 belong to the protection scope of the present invention.
In the related art, a hydraulic cylinder is generally used as a working device of a hydraulic system, and the hydraulic cylinder is connected with an oil source and a hydraulic pump through a joint device and a pipeline in the whole hydraulic system. Because the hydraulic cylinder has the state of intermittent oil supply or oil return in the working process, the hydraulic cylinder vibrates, the work of the hydraulic cylinder is unstable, and the service life of the hydraulic cylinder is shortened.
For this technical problem, the structure of improving the pneumatic cylinder is adopted mostly among the prior art, for example, the clearance of the piston rod of improvement pneumatic cylinder and cavity etc. or add the valves of adjusting flow on hydraulic system's oil pipeline, no matter improve pneumatic cylinder self structure, still increase the valves in hydraulic system and all improved use cost by a wide margin, to addding the valves, make hydraulic system's assembly complicated, and owing to add the structure on original hydraulic system, and then increased hydraulic system fault rate. Based on the technical problem, the utility model provides a piecing devices, hydraulic system and operation machinery aims at solving the defect that the pneumatic cylinder takes place to vibrate under the state of intermittent type nature fuel feeding or oil return among the prior art with high efficiency, low fault rate, low-cost mode.
The joint device, the hydraulic system, and the working machine according to the present invention will be described with reference to fig. 1 to 2.
The embodiment provides a joint device, which comprises a valve body 1, a valve core 6 and a rotating piece, wherein the inner side wall of the valve body 1 is provided with a first circumferential groove 2 and a second circumferential groove 3, and the valve body 1 is provided with a first opening 4 communicated with the first circumferential groove 2 and a second opening 5 communicated with the second circumferential groove 3; the valve core 6 is matched with the valve body 1, a third circumferential groove 7 is arranged on the valve core 6, the length of the third circumferential groove 7 is larger than the distance between the first circumferential groove 2 and the second circumferential groove 3, the distance refers to L shown in figure 1, the length of the third circumferential groove 7 is designed to be larger than the distance between the first circumferential groove 2 and the second circumferential groove 3, and therefore the third circumferential groove 7 is guaranteed to have enough length to be capable of conducting the first circumferential groove 2 and the second circumferential groove 3 in the sliding process of the valve core 6; hydraulic oil can enter the corresponding first circumferential groove 2 or second circumferential groove 3 through the first opening 4 or the second opening 5, then flow in the valve body 1 through the third circumferential groove 7, and flow out to the other circumferential groove and opening arranged on the valve body 1; the rotating member comprises a connecting portion 8 connected with the valve body 1 and a thread guide portion 9 in threaded connection with the valve core 6, and the thread guide portion 9 is in rotational connection with the connecting portion 8 so that the valve core 6 can slide relative to the valve body 1 along the axial direction and is limited in radial displacement.
Further, when the valve core 6 slides relative to the valve body 1, the notch of the third circumferential groove 7 moves between the notches of the first circumferential groove 2 and the second circumferential groove 3 to adjust the opening degrees of the first opening 4 and the second opening 5, so that the flow rate and the flow speed of the first opening 4 and the second opening 5 can be adjusted, and during the movement of the third circumferential groove 7 between the notches of the first circumferential groove 2 and the second circumferential groove 3, the outer edge of the notch of the third circumferential groove 7 can block part of the notches of the first circumferential groove 2 and the second circumferential groove 3, so that the size of a flow passage at the joint of the third circumferential groove 7 and the first circumferential groove 2 or the second circumferential groove 3 is increased or reduced, so that the flow rate and the flow speed of the hydraulic oil can be changed.
In the embodiment, the connecting portion 8 and the thread guide portion 9 on the rotating member are respectively connected with the valve body 1 and the valve core 6, the valve core 6 can slide relative to the valve body 1 by rotating the rotating member, in the sliding process, the third circumferential groove 7 on the valve core 6 moves between the first circumferential groove 2 and the second circumferential groove 3 on the valve body 1 to increase or decrease the size of a flow passage at the joint of the third circumferential groove 7 and the first circumferential groove 2 or the second circumferential groove 3, and further adjust the flow rate and the flow velocity of the first opening 4 and the second opening 5 corresponding to the first circumferential groove 2 and the second circumferential groove 3, so that the joint device provided by the embodiment can adjust the flow rate and the flow velocity, avoid the hydraulic cylinder from vibrating in an intermittent oil supply or oil return state, and only need to rotate the rotating member in the adjusting process, the adjusting efficiency is high, no other valve group for adjusting the flow rate and the structure of the hydraulic cylinder need not to be improved, the failure rate of the hydraulic system is reduced, and the use cost is reduced.
In this embodiment, the connection portion 8 is a turbine disk connected to the valve body 1, the thread guide portion 9 is a turbine connected to the valve element 6 by a thread, and the turbine is rotatably connected to the turbine disk.
When the valve body 1 is fixedly connected with the turbine disc, the outer ring of the turbine disc can be fixed with the valve body 1, the inner ring of the turbine disc is rotatably connected with the outer ring of the turbine, the inner ring of the turbine is in threaded connection with the valve core 6, and the valve core 6 can slide relative to the valve body 1 by rotating the turbine.
Optionally, the connecting portion 8 may also be a bearing, a fixing sleeve, or other structures disposed on the valve body 1, and the thread guide portion 9 may also be another thread sleeve structure rotatably connected to the connecting portion 8 and capable of being in threaded connection with the valve element 6.
In this embodiment, the inside wall of turbine is equipped with the screw thread with 6 threaded connection of case, and the turbine outer lane is rotated with the turbine dish and is connected, and the turbine dish is fixed in on the valve body 1, can make case 6 slide for valve body 1 through rotatory turbine.
As an alternative embodiment, the valve core 6 may be provided with a screw thread, the thread guide portion 9 may be a screw nut sleeved on the valve core 6 and engaged with the screw thread, the screw nut is rotatably connected to the connecting portion 8, and the valve core 6 may also slide relative to the valve body 1 by rotating the screw nut.
In this embodiment, scales are circumferentially arranged on the turbine disc, and the size of the flow channel at the joint of the first circumferential groove 2, the second circumferential groove 3, and the third circumferential groove 7 in the current state is convenient to determine by reading the scales, where the method for determining the relationship between the size of the flow channel at the joint and the scales on the turbine disc is as follows:
the operation performance of the whole machine is adjusted and controlled, the joint device with the determined best operability is connected into a test bed, the flow Qa of the first opening 4 in unit time t at the moment is measured, the flow velocity Vb L/min of the second opening 5 is measured, and the flow velocity VbL/min is obtained through equivalent formula conversion:
qa = SbVb × t, i.e.: sb = Qa/Vb/t i.e.:
the relationship between the diameter db of the flow passage at the butt joint and the size of the scale on the turbine disc is as follows:
db. Varies.. Theta: a constant C can be determined by debugging, i.e., db = C θ;
then: the dimensions of each scale on the turbine disk may be equivalent to:
θ1＝α/2Π＝db/C
namely:
therefore, the size of the diameter of the corresponding flow channel at the butt joint can be read according to the scale on the turbine disc during next debugging, and the debugging efficiency is improved.
In this embodiment, a pair of sealing rings 10 is provided in the valve body 1, the first circumferential groove 2, the second circumferential groove 3, and the third circumferential groove 7 are located between the pair of sealing rings 10, the pair of sealing rings 10 is provided in the valve body 1, the pair of sealing rings 10 is located on both sides of the first circumferential groove 2 and the second circumferential groove 3, and the third circumferential groove 7 moves in a region between the pair of sealing rings 10 during sliding of the valve element 6 with respect to the valve body 1, thereby preventing leakage of hydraulic oil.
Further, on a pair of sealing washer 10 all inlayed the inside wall of locating valve body 1, set up the holding tank that can hold sealing washer 10 on the inside wall of valve body 1, can make sealing washer 10 all inlay and locate in the holding tank.
In this embodiment, one end of the valve core 6, which is far away from the rotating member, penetrates through the valve body 1, so that the sliding process between the valve core 6 and the valve body 1 can be conveniently adjusted.
In another aspect, the present embodiment further provides a hydraulic system, which includes an oil source, a power device, a working device, and the joint device provided in the foregoing embodiment, where the working device may be at least one hydraulic cylinder, in the system, the oil source is connected to the working device through the joint device and a pipeline, and the power device is disposed on the pipeline.
Furthermore, the power device can be a hydraulic pump, hydraulic oil of an oil source can be conveyed to the hydraulic cylinder along the pipeline and the joint device through the power device, and the flow speed can be adjusted through the joint device under the intermittent oil supply or oil return state of the hydraulic cylinder, so that the hydraulic cylinder is prevented from vibrating.
In still another aspect, the present embodiment also provides a working machine having a hydraulic system, such as an excavator, a drilling rig, a strip mill, and the like, which can adopt the hydraulic system provided in the above embodiment to have all the advantages of the above hydraulic system and the joint device.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.
In the description of the present specification, reference to the description of "one embodiment," "first-aspect embodiment," "some embodiments," "example," "specific example," or "some example" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. A joint arrangement, comprising:
the valve comprises a valve body (1), wherein a first circumferential groove (2) and a second circumferential groove (3) are formed in the inner side wall of the valve body (1), and a first opening (4) communicated with the first circumferential groove (2) and a second opening (5) communicated with the second circumferential groove (3) are formed in the valve body (1);
the valve core (6) is matched with the valve body (1), a third circumferential groove (7) is formed in the valve core (6), and the length of the third circumferential groove (7) is larger than the distance between the first circumferential groove (2) and the second circumferential groove (3);
the rotating piece comprises a connecting part (8) connected with the valve body (1) and a thread guide part (9) in threaded connection with the valve core (6), and the thread guide part (9) is in rotary connection with the connecting part (8) so that the valve core (6) can slide relative to the valve body (1) along the axial direction and the radial displacement is limited;
wherein the notch of the third circumferential groove (7) moves between the notches of the first circumferential groove (2) and the second circumferential groove (3) to adjust the opening degrees of the first opening (4) and the second opening (5) when the spool (6) slides relative to the valve body (1).
2. A joint arrangement according to claim 1, characterized in that the connection portion (8) is a turbine disc connected to the valve body (1), and the screw guide (9) is a turbine screw-connected to the valve element (6), the turbine being rotatably connected to the turbine disc.
3. A joint arrangement according to claim 2, wherein the inner side wall of the worm gear is provided with a screw thread for screwing with the spool (6).
4. The joint device according to claim 2, wherein the turbine disc is provided with a scale in the circumferential direction.
5. A joint arrangement according to any one of claims 1-4, characterized in that a pair of sealing rings (10) is provided in the valve body (1), the first circumferential groove (2), the second circumferential groove (3) and the third circumferential groove (7) being located between the pair of sealing rings (10).
6. A joint arrangement according to claim 5, wherein a pair of said sealing rings (10) are embedded in the inner side wall of the valve body (1).
7. A connector device according to claim 1, wherein the end of the valve member (6) remote from the rotary member extends through the valve body (1).
8. A hydraulic system comprising an oil source, a power unit, a working unit and a joint unit according to any one of claims 1 to 7, the oil source being connected to the working unit via the joint unit and a conduit, the power unit being arranged on the conduit.
9. The hydraulic system of claim 8, wherein the work device is at least one hydraulic cylinder.
10. A work machine, characterized by comprising a hydraulic system according to any one of claims 8-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222957236.7U CN218440740U (en) | 2022-11-07 | 2022-11-07 | Joint device, hydraulic system, and working machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222957236.7U CN218440740U (en) | 2022-11-07 | 2022-11-07 | Joint device, hydraulic system, and working machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218440740U true CN218440740U (en) | 2023-02-03 |
Family
ID=85074614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222957236.7U Active CN218440740U (en) | 2022-11-07 | 2022-11-07 | Joint device, hydraulic system, and working machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218440740U (en) |
-
2022
- 2022-11-07 CN CN202222957236.7U patent/CN218440740U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207205290U (en) | Main-shaft box system with indexing mechanism | |
| TW494203B (en) | Dry running coolant union | |
| CN218440740U (en) | Joint device, hydraulic system, and working machine | |
| ITMI961453A1 (en) | AXIAL PISTON MACHINE | |
| CN107014562A (en) | A kind of liquid-propellant rocket engine turbine pump flex rotor high-speed balancing supporting arrangement | |
| US20220236159A1 (en) | Friction and wear testing platform capable of simulating high-pressure, silt-containing and turbid submarine environment | |
| CN112475336A (en) | Turning liquid static pressure electric spindle | |
| CN218062701U (en) | Mechanical seal operation test device of centrifugal pump | |
| CN215410700U (en) | Compact rotary hydraulic joint | |
| CN211136422U (en) | B-axis milling head structure and processing machine tool | |
| CN206477828U (en) | Integrated concentric stepping layered polymer injection device | |
| CN207402120U (en) | A kind of hollow dust exhaust apparatus for knife tower lathe spindle | |
| CN206637037U (en) | A kind of mixed film friction formula self-lubricating rotary sealing appts | |
| CN110181262A (en) | A kind of filature locking structure | |
| CN109681218B (en) | Novel central revolving body of shield tunneling machine | |
| CN206772492U (en) | A kind of liquid-propellant rocket engine turbine pump flex rotor high-speed balancing supporting arrangement | |
| CN207718835U (en) | A kind of underwater rotary type position feedback unit driving structure | |
| CN111501229A (en) | Dual-purpose rotating shuttle oil supply device | |
| CN204366738U (en) | A kind of hydraulic rotary dresser | |
| CN209387290U (en) | The device of ultrahigh speed liquid film shear property and hydrostatic bearing characteristic test can be achieved | |
| CN107433598A (en) | Deep hole machining machinery hand | |
| CN110744337A (en) | B-axis milling head structure and processing machine tool | |
| CN207479617U (en) | Main-shaft box system with automatic chuck | |
| CN212477086U (en) | Dual-purpose rotating shuttle oil supply device | |
| CN104551999A (en) | Hydraulic rotary grinding wheel dresser |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |