CN212273244U

CN212273244U - Silencing joint

Info

Publication number: CN212273244U
Application number: CN202020538760.9U
Authority: CN
Inventors: 杨庆龙; 莫有瑜; 程金国; 韦家义; 李春辉; 陈聪; 梁振伟
Original assignee: Guangxi Yuchai Heavy Industry Co Ltd
Current assignee: Guangxi Yuchai Heavy Industry Co Ltd
Priority date: 2020-04-14
Filing date: 2020-04-14
Publication date: 2021-01-01
Anticipated expiration: 2030-04-14

Abstract

The utility model discloses an amortization connects belongs to hydraulic component silencing device technical field, has solved the problem that produces the abnormal sound easily when traditional hydraulic component uses. The silencing joint comprises a joint body with a hollow structure and a silencing valve core positioned in the joint body, wherein an oil inlet channel and an oil outlet channel are respectively arranged at two ends of the silencing valve core, a first throttling hole is formed in the silencing valve core at the bottom end of the oil inlet channel, a second throttling hole is formed in the silencing valve core at the bottom end of the oil outlet channel, and a turbulent flow cavity communicated with the first throttling hole and the second throttling hole is formed between the silencing valve core and the joint body. The utility model discloses an amortization connects, installs the oil inlet department at hydraulic component to the fluid turbulent flow, disturbs hydraulic component's frequency and amplitude to reduce hydraulic component's abnormal sound, effectively reduced the maintenance cost.

Description

Silencing joint

Technical Field

The utility model relates to a silencing device technical field, more specifically say, it relates to a amortization connects.

Background

In each hydraulic element of the hydraulic excavator, due to difference of each element, abnormal sound sometimes exists when the hydraulic excavator is used, particularly, if a designed overflow valve is not good, the pilot oil source valve of the miniature excavator generally has abnormal sound, and the problem of high cost is easily caused by directly selecting another oil source valve or replacing the overflow valve in the oil source valve in the conventional method for solving the abnormal sound.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is not enough to the above-mentioned of prior art, provide a amortization joint, install oil inlet department at hydraulic component to the fluid turbulent flow, disturb hydraulic component's frequency and amplitude to reduce hydraulic component's abnormal sound, effectively reduced the maintenance cost.

The utility model adopts the technical proposal that: the utility model provides a amortization connects, includes hollow structure's joint body and is located this internal amortization case of joint, amortization case both ends be equipped with oil feed passageway and oil outlet channel respectively, be equipped with first orifice on the amortization case of oil feed passageway bottom, be equipped with the second orifice on the amortization case of oil outlet channel bottom, amortization case and joint body between be equipped with the turbulent flow chamber with first orifice, second orifice intercommunication.

As a further improvement, the silencing valve core is detachably arranged in the joint body, one end of the joint body is provided with a limiting step for limiting the axial displacement of the silencing valve core, and the other end of the joint body is provided with a clamp spring for clamping the silencing valve core.

Furthermore, an oil inlet is formed in one end, corresponding to the oil inlet channel, of the joint body, an oil outlet is formed in one end, corresponding to the oil outlet channel, of the joint body, and the sectional area of the oil inlet is larger than that of the oil outlet.

Further, the diameter of the first throttle hole is larger than the diameter of the second throttle hole.

Furthermore, the two ends of the joint body are respectively provided with a first threaded joint and a second threaded joint.

Advantageous effects

Compared with the prior art, the utility model, have following advantage:

1. the utility model discloses a amortization connects installs and locates the turbulent flow of fluid at hydraulic component's oil inlet, makes the fluid that flows at a high speed reentrant hydraulic component after two orifices and turbulent flow chamber reach turbulent flow state, disturbs hydraulic component's frequency and amplitude to reduce hydraulic component's abnormal sound, effectively reduced the maintenance cost.

2. The utility model discloses an amortization case adopts the detachable mode to install and connects originally internally, through taking off the jump ring, can take out the amortization case, is convenient for wash the amortization case, and it is very convenient to use.

3. The utility model further improves the turbulent flow effect by further limiting the diameters of the two throttling holes to be that the diameter of the first throttling hole is larger than that of the second throttling hole; meanwhile, the sectional areas of the oil inlet and the oil outlet are further limited to be larger than that of the oil outlet, so that the turbulent flow effect is further improved, and the abnormal sound is reduced.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Wherein: the oil-gas separation joint comprises a joint body 1, a silencing valve core 2, an oil inlet channel 3, an oil outlet channel 4, a first throttling hole 5, a second throttling hole 6, a turbulent flow cavity 7, a snap spring 8, an oil inlet 9, an oil outlet 10, a first threaded joint 11 and a second threaded joint 12.

Detailed Description

The invention will be further described with reference to specific embodiments shown in the drawings.

Referring to fig. 1, the utility model discloses a amortization connects, connect body 1 and be located the amortization case 2 that connects in the body 1 including hollow structure, be equipped with oil feed passageway 3 and oil outlet channel 4 respectively at amortization case 2 both ends, oil feed passageway 3 is the blind hole of seting up along the axle center of amortization case 2 with oil outlet channel 4, be equipped with first orifice 5 on the amortization case 2 of 3 bottoms of oil feed passageway, be equipped with second orifice 6 on the amortization case 2 of oil outlet channel 4 bottoms, two orifices all radially run through amortization case 2, be equipped with first orifice 5 between amortization case 2 and the joint body 1, the turbulent flow chamber 7 of second orifice 6 intercommunication, turbulent flow chamber 7 is the annular groove of seting up at amortization case 2 outer wall middle parts, so that fluid circulates.

Preferably, 2 detachable of amortization case are installed in connecting body 1, make things convenient for the dismouting, and is concrete, be equipped with spacing step of 2 axial displacement of spacing amortization case in the one end that connects body 1, the other end is equipped with the jump ring 8 of chucking amortization case 2, amortization case 2 inserts and connects this internal back, utilize spacing step to carry on spacingly to it, then go into jump ring 8 card again and connect in the body 1, can realize the locking of amortization case 2, its amortization case adopts the detachable mode to install and connects originally internally, through taking off the jump ring, can take out the amortization case, high durability and convenient use, be convenient for wash the amortization case, effectively prolong its life.

Preferably, an oil inlet 9 is arranged at one end of the joint body 1 corresponding to the oil inlet channel 3, correspondingly, an oil outlet 10 is arranged at one end of the joint body 1 corresponding to the oil outlet channel 3, the oil inlet 9 is communicated with the oil inlet channel 3, the oil outlet 10 is communicated with the oil outlet channel 4, and oil is ensured to flow in and out, wherein the sectional area of the oil inlet 9 is larger than that of the oil outlet 10, so that the turbulence effect is further improved, and abnormal sound is reduced.

Preferably, the oil inlet 9 is a tapered cavity which is gradually narrowed along the flowing direction of the oil, and correspondingly, the oil outlet 10 is a tapered cavity which is gradually enlarged along the flowing direction of the oil, so that the impact of the large-flow oil on the hydraulic element is reduced, the turbulent effect is further improved, and the abnormal sound is reduced.

Preferably, the diameter of the first orifice 5 is larger than that of the second orifice 6, so that the flow rate of the oil is reduced, the turbulent effect is further improved, and the abnormal sound is reduced.

Preferably, a first threaded joint 11 and a second threaded joint 12 are respectively arranged at two ends of the joint body 1, so that the joint body can be conveniently connected with an oil rubber pipe and a hydraulic element.

When the silencing joint is used, the silencing joint is respectively connected with the oil rubber tube and the hydraulic element through the first threaded joint 11 and the second threaded joint 12, so that the silencing joint is arranged at an oil inlet of the hydraulic element; oil liquid enters an oil inlet 9 from a rubber tube, then flows to an oil outlet 10 through an oil inlet channel 3, a first throttling hole 5, a turbulent flow cavity 7 and an oil outlet channel 4, the high-speed flowing oil liquid reaches a turbulent flow state after passing through the two throttling holes and the turbulent flow cavity, and finally enters a hydraulic element to disturb the frequency and the amplitude of the hydraulic element, so that abnormal sound of the hydraulic element is reduced, and the maintenance cost is effectively reduced.

The above is only the preferred embodiment of the present invention, and it should be noted that for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which will not affect the utility model and the utility of the patent.

Claims

1. The utility model provides a amortization connects, its characterized in that includes hollow structure's joint body (1) and is located amortization case (2) that connect body (1), amortization case (2) both ends be equipped with oil feed passageway (3) and oil outlet channel (4) respectively, be equipped with first orifice (5) on amortization case (2) of oil feed passageway (3) bottom, be equipped with second orifice (6) on the amortization case (2) of oil outlet channel (4) bottom, amortization case (2) and joint body (1) between be equipped with turbulent flow chamber (7) with first orifice (5), second orifice (6) intercommunication.

2. The silencing joint according to claim 1, wherein the silencing valve core (2) is detachably mounted in the joint body (1), one end of the joint body (1) is provided with a limiting step for limiting the axial displacement of the silencing valve core (2), and the other end of the joint body is provided with a clamp spring (8) for clamping the silencing valve core (2).

3. The noise reduction joint according to claim 1, wherein an oil inlet (9) is formed in one end of the joint body (1) corresponding to the oil inlet channel (3), correspondingly, an oil outlet (10) is formed in one end of the joint body (1) corresponding to the oil outlet channel (4), and the sectional area of the oil inlet (9) is larger than that of the oil outlet (10).

4. A sound-damping connection according to one of claims 1-3, characterized in that the diameter of the first throttle bore (5) is larger than the diameter of the second throttle bore (6).

5. A sound-damping joint as claimed in claim 4, characterized in that the joint body (1) is provided at its ends with a first threaded joint (11) and a second threaded joint (12), respectively.