CN113654790A - Noise reduction device of 120-valve test bed - Google Patents
Noise reduction device of 120-valve test bed Download PDFInfo
- Publication number
- CN113654790A CN113654790A CN202110737039.1A CN202110737039A CN113654790A CN 113654790 A CN113654790 A CN 113654790A CN 202110737039 A CN202110737039 A CN 202110737039A CN 113654790 A CN113654790 A CN 113654790A
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- noise reduction
- valve
- reduction box
- test bed
- guide
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/003—Machine valves
Abstract
The invention belongs to the technical field of valve body test beds, and particularly relates to a noise reduction device of a 120-valve test bed. The technical scheme is as follows: a noise reduction device of a 120-valve test bed comprises a fixed support, wherein a lifting mechanism is mounted on the fixed support, the other end of the lifting mechanism is connected with a noise reduction box, interfaces which are respectively aligned with two exhaust ports of a 120-valve are arranged on the noise reduction box, and a handle relieving part of the 120-valve extends into the noise reduction box from one interface after the noise reduction box is lifted; a horizontal cylinder used for pushing the 120 valve and relieving the tilting of the handle part is installed on the test clamping panel, and a piston rod of the horizontal cylinder extends into the noise reduction box. The invention provides a 120-valve test bed noise reduction device which does not affect the installation space of a 120-valve.
Description
Technical Field
The invention belongs to the technical field of valve body test beds, and particularly relates to a noise reduction device of a 120-valve test bed.
Background
In the exhaust process of the 120-valve performance test, 11.6 liters of air with the pressure of 600kPa is exhausted to the atmosphere through two large-hole diameters of about 30mm, so that the noise is high, and the environmental comfort of the production test is influenced. With the continuous improvement of production test environment requirements of production enterprises and users, how to effectively reduce exhaust noise in the 120-valve test process becomes more important.
When the 120 valve is tested on a test bench, according to the requirements of test contents, after the air cylinder pushes the handle of the relief valve, pressure air is firstly exhausted from the handle part of the relief valve, and then the air is exhausted from the exhaust port of the relief valve. If the noise reduction device is directly added at the two exhaust ports, the action of the air cylinder pushing and relieving the valve handle is influenced, and the installation space of the test bed is influenced.
Disclosure of Invention
In order to solve the above problems in the prior art, the present invention aims to provide a noise reduction device for a 120-valve test bed, which does not affect the installation space of a 120-valve.
The technical scheme adopted by the invention is as follows:
a noise reduction device of a 120-valve test bed comprises a fixed support, wherein a lifting mechanism is mounted on the fixed support, the other end of the lifting mechanism is connected with a noise reduction box, interfaces which are respectively aligned with two exhaust ports of a 120-valve are arranged on the noise reduction box, and a handle relieving part of the 120-valve extends into the noise reduction box from one interface after the noise reduction box is lifted; a horizontal cylinder used for pushing the 120 valve and relieving the tilting of the handle part is installed on the test clamping panel, and a piston rod of the horizontal cylinder extends into the noise reduction box.
In preparation for venting, the lifting mechanism raises the noise reduction box so that the two ports on the noise reduction box can be aligned with the two exhaust ports on the 120-valve, respectively. The piston rod of the horizontal cylinder pushes the handle releasing part to tilt, and then the two exhaust ports on the 120 valve start to exhaust in sequence. The pressure air is exhausted to the atmosphere after passing through the noise reduction box, so that the noise is reduced in the exhaust process.
When the testing process for a 120-valve is completed, a new 120-valve body needs to be replaced from the test clamping panel. After the exhaust of making an uproar is accomplished, elevating system will fall the case of making an uproar to the case of making an uproar will not influence the installation space of 120 valves, conveniently pulls down or installs 120 valves from experimental centre gripping panel.
The handle portion of alleviating of 120 valves stretches into the noise reduction case from one of them interface after the noise reduction case rises to the piston rod of horizontal cylinder stretches into the noise reduction case, then the back is risen to the noise reduction case bar, and the noise reduction case can not take place to interfere with horizontal cylinder, and the noise reduction case can not influence horizontal cylinder and to the operation of alleviating the handle portion, guarantees that 120 valves can normally exhaust.
As a preferable scheme of the invention, the interface is connected with a positioning sleeve. The position sleeve is connected at the interface, and when the noise reduction box rises, the position sleeve can be accurately butted with the exhaust port on the 120 valve, so that pressure air can be accurately discharged into the noise reduction box, and the noise reduction box is ensured to reliably reduce noise.
In a preferred embodiment of the present invention, a sealing cushion for sealing the exhaust port of the valve 120 is attached to the positioning sleeve. The sealed blotter can seal the clearance between position sleeve and the gas vent, guarantees that pressure air all gets into the noise reduction box, further improves the noise reduction effect.
As a preferable scheme of the invention, the lifting mechanism comprises a lifting cylinder, a cylinder sleeve of the lifting cylinder is arranged on the fixed support, and a piston rod of the lifting cylinder is connected with the noise reduction box. The cylinder sleeve of the lifting cylinder is fixed relative to the fixed support, and then the piston rod of the lifting cylinder can lift or lower the noise reduction box.
As a preferred scheme of the invention, the fixed bracket is provided with a guide sleeve, a guide rod is sleeved in the guide sleeve, and one end of the guide rod is connected with the noise reduction box. In the process that the lifting mechanism lifts or lowers the noise reduction box, the guide rod is always sleeved in the guide sleeve, and then the guide sleeve accurately guides the guide rod, so that the noise reduction box can stably lift, and an interface on the noise reduction box can be accurately butted or separated with or from the exhaust port.
As a preferable scheme of the invention, the number of the guide sleeves on the fixed support is two, and the two guide sleeves are respectively arranged on two sides of the lifting mechanism. The quantity of uide bushing and guide arm is two, and when elevating system drive noise reduction box goes up and down, noise reduction box's both sides all steadily removed, avoid noise reduction box slope.
As a preferable scheme of the invention, one end of the guide rod, which is far away from the noise reduction box, is connected with a limiting structure. The limiting structure can limit the stroke of the guide sleeve, so that the stroke of the lifting mechanism is limited, and the moving position of the noise reduction box is more accurate.
As the preferred scheme of the invention, the limiting structure is a limiting clamp, and the limiting clamp is clamped on the guide rod. After the two ends of the limiting clamp are connected through the bolts, the limiting clamp can be reliably clamped on the guide rod, and the position of the limiting clamp on the guide rod can be adjusted according to needs, so that the limit position of the noise reduction box is adjusted.
In a preferred embodiment of the present invention, a silencer is connected to the noise reduction box. After entering the noise reduction box, the pressure air is discharged from the silencer, so that when the pressure air is discharged, the noise reduction and silencing device reliably reduces noise and silences the pressure air.
As a preferable scheme of the present invention, a positioning guide device is fixed on the noise reduction box, and a piston rod of the horizontal cylinder passes through the positioning guide device. The piston rod of the horizontal cylinder can be guided by the positioning and guiding device, and the piston rod of the horizontal cylinder can be guaranteed to push the handle releasing part all the time.
The invention has the beneficial effects that:
1. when the lifting mechanism lifts the noise reduction box, two interfaces on the noise reduction box can be respectively aligned with two air outlets on the 120-valve. The piston rod of the horizontal cylinder pushes the handle releasing part to tilt, and then the two exhaust ports on the 120 valve start to exhaust in sequence. The pressure air is exhausted to the atmosphere after passing through the noise reduction box, so that the noise is reduced in the exhaust process.
2. When the testing process for a 120 valve is completed, a new 120 valve body needs to be replaced from the test retainer panel. After the exhaust of making an uproar is accomplished, elevating system will fall the case of making an uproar to the case of making an uproar will not influence the installation space of 120 valves, conveniently pulls down or installs 120 valves from experimental centre gripping panel.
3. The handle portion of alleviating of 120 valves stretches into the noise reduction case from one of them interface after the noise reduction case rises to the piston rod of horizontal cylinder stretches into the noise reduction case, then the back is risen to the noise reduction case bar, and the noise reduction case can not take place to interfere with horizontal cylinder, and the noise reduction case can not influence horizontal cylinder and to the operation of alleviating the handle portion, guarantees that 120 valves can normally exhaust.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a left side view of the present invention;
FIG. 3 is a front view of a 120-valve test stand;
fig. 4 is a left side view of the 120-valve test stand.
In the drawings, 1-a fixed support; 2-a lifting mechanism; 3-noise reduction box; 4-horizontal cylinder; 5-120 valves; 6-test bench surface; 7-test grip panel; 11-a guide sleeve; 12-a guide rod; 13-a limit structure; 14-a positioning guide; 31-a positioning sleeve; 32-a sealing cushion; 33-a silencer; 51-relief handle portions; 52-exhaust port; 521-relief vent in valve; 522-relieve handle vents.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
As shown in fig. 3 and 4, when the 120-valve 5 needs to be tested, the 120-valve 5 is mounted on the test holding panel 7, and the test bed table 6 is installed. The bottom of the valve 120 5 is provided with two air outlets 52, namely a release air outlet 521 and a release handle air outlet 522 in the valve, and the release handle air outlet 522 is positioned on the release handle 51.
As shown in fig. 1 and fig. 2, the noise reduction device of the 120-valve test bed of the present embodiment includes a fixed bracket 1, a lifting mechanism 2 is installed on the fixed bracket 1, the other end of the lifting mechanism 2 is connected with a noise reduction box 3, the noise reduction box 3 is provided with interfaces respectively aligned with two exhaust ports 52 of a 120-valve 5, and after the noise reduction box 3 is lifted, a relieving handle part 51 of the 120-valve 5 extends into the noise reduction box 3 from one of the interfaces; the horizontal cylinder 4 for pushing the relieving handle part 51 of the 120 valve 5 to tilt is arranged on the test clamping panel 7, and a piston rod of the horizontal cylinder 4 extends into the noise reduction box 3.
Wherein, be provided with vertical opening on the noise reduction box 3, the piston rod of horizontal cylinder 4 stretches into noise reduction box 3 from vertical opening, then can not take place to interfere with between the piston rod of horizontal cylinder 4 when noise reduction box 3 goes up and down. And a positioning guide device 14 is fixed on a vertical opening of the noise reduction box 3, and a piston rod of the horizontal cylinder 4 penetrates through the positioning guide device 14. The positioning guide device 14 can guide the piston rod of the horizontal cylinder 4, and ensure that the piston rod of the horizontal cylinder 4 can always push the handle relieving part 51 to move.
In preparation for venting, the noise reduction box 3 is raised by the lifting mechanism 2, and the two ports on the noise reduction box 3 can be aligned with the two exhaust ports 52 on the 120-valve 5, respectively. When the piston rod of the horizontal cylinder 4 pushes the release handle part 51 to tilt, the two exhaust ports 52 on the 120-valve 5 start to exhaust in sequence. The pressure air is exhausted to the atmosphere after passing through the noise reduction box 3, so that the noise is reduced in the exhaust process.
When the test process for one 120-valve 5 is completed, a new 120-valve 5 needs to be replaced from the test retainer panel 7. After the exhaust of making an uproar is accomplished, elevating system 2 will fall the noise reduction box 3 to noise reduction box 3 can not influence 120 valves 5's installation space, conveniently pulls down 120 valves 5 or installs from experimental centre gripping panel 7.
After the noise reduction box 3 is lifted, the releasing handle part 51 of the 120-valve 5 extends into the noise reduction box 3 from one of the interfaces, and the piston rod of the horizontal cylinder 4 extends into the noise reduction box 3, so that after the noise reduction box 3 is lifted, the noise reduction box 3 cannot interfere with the horizontal cylinder 4, the noise reduction box 3 cannot influence the operation of the horizontal cylinder 4 on the releasing handle part 51, and the 120-valve 5 is guaranteed to exhaust normally.
To ensure good contact between the mouthpiece and the exhaust port 52, a locating sleeve 31 is attached to the mouthpiece. The position sleeve 31 is connected at the interface, and when the noise reduction box 3 rises, the position sleeve 31 can be accurately butted with the exhaust port 52 on the valve 120 5, so that pressure air can be accurately exhausted into the noise reduction box 3, and the noise reduction box 3 is ensured to reliably reduce noise. A sealing cushion 32 for sealing 120 the exhaust port 52 of the valve 5 is attached to the positioning sleeve 31. The sealing cushion can seal the gap between the positioning sleeve 31 and the exhaust port 52, ensure that the pressure air completely enters the noise reduction box 3, and further improve the noise reduction effect.
Specifically, elevating system 2 includes the lift cylinder, and the cylinder liner of lift cylinder is installed on fixed bolster 1, and the piston rod of lift cylinder is connected with noise reduction box 3. The cylinder sleeve of the lifting cylinder is fixed relative to the fixed support 1, and then the piston rod of the lifting cylinder can lift or lower the noise reduction box 3.
Furthermore, a guide sleeve 11 is arranged on the fixed support 1, a guide rod 12 is sleeved in the guide sleeve 11, and one end of the guide rod 12 is connected with the noise reduction box 3. In the process that the lifting mechanism 2 lifts or lowers the noise reduction box 3, the guide rod 12 is always sleeved in the guide sleeve 11, and then the guide sleeve 11 accurately guides the guide rod 12, so that the noise reduction box 3 can be lifted stably, and the interface on the noise reduction box 3 can be ensured to be accurately butted or separated with or separated from the exhaust port 52.
The number of the guide sleeves 11 on the fixed support 1 is two, and the two guide sleeves 11 are respectively arranged on two sides of the lifting mechanism 2. The number of the guide sleeve 11 and the guide rod 12 is two, so that when the lifting mechanism 2 drives the noise reduction box 3 to lift, the two sides of the noise reduction box 3 move stably, and the noise reduction box 3 is prevented from inclining.
One end of the guide rod 12, which is far away from the noise reduction box 3, is connected with a limiting structure 13. Limiting structure 13 can carry out spacingly to the stroke of uide bushing 11 to elevating system 2's stroke obtains spacingly, guarantees that 3 shift position of noise reduction box are more accurate. The limiting structure 13 is a limiting clamp, and the limiting clamp is clamped on the guide rod 12. After the two ends of the limiting clamp are connected through the bolts, the limiting clamp can be reliably clamped on the guide rod 12, and the position of the limiting clamp on the guide rod 12 can be adjusted according to needs, so that the limit position of the noise reduction box 3 can be adjusted.
Further, a silencer 33 is connected to the noise reduction box 3. After entering the noise reduction box 3, the pressure air is discharged from the silencer 33, so that when the pressure air is discharged, the noise reduction and silencing device reliably reduces noise and silences the pressure air.
The working principle is as follows:
in preparation for venting, the lift cylinder pushes the noise reduction box 3 upwards according to the 120-valve 5 test procedure. The guide rod 12 guides the guide sleeve 11, and the limiting clamp limits the guide sleeve 11. After the noise reduction box 3 is lifted, the relieving handle part 51 of the 120-valve 5 extends into one of the interfaces, the positioning sleeve 31 ensures that the interface is accurately connected with the exhaust port 52, and the sealing cushion 32 seals a gap between the positioning sleeve 31 and the exhaust port 52. When the horizontal cylinder 4 is started, the piston rod of the horizontal cylinder 4 pushes the release handle part 51 to tilt, and the release handle part air outlet 522 and the release handle part air outlet 521 in the valve successively exhaust air. The pressure air enters the noise reduction box 3 and is discharged through the silencer 33, and the sufficient noise reduction in the exhaust process is ensured.
After the exhaust of the 120 valve 5 is completed, the lifting cylinder lowers the noise reduction box 3, and the sealing cushion 32 on the positioning sleeve 31 is separated from the exhaust port 52, so that the noise reduction box 3 is prevented from influencing the installation space of the 120 valve 5, and the new 120 valve 5 to be tested is conveniently replaced from the test clamping panel 7.
The invention is not limited to the above alternative embodiments, and any other various forms of products can be obtained by anyone in the light of the present invention, but any changes in shape or structure thereof, which fall within the scope of the present invention as defined in the claims, fall within the scope of the present invention.
Claims (10)
1. The noise reduction device of the 120-valve test bed is characterized by comprising a fixed support (1), wherein a lifting mechanism (2) is installed on the fixed support (1), the other end of the lifting mechanism (2) is connected with a noise reduction box (3), the noise reduction box (3) is provided with interfaces aligned with two air outlets (52) of a 120-valve (5), and after the noise reduction box (3) is lifted, a handle relieving part (51) of the 120-valve (5) extends into the noise reduction box (3) from one of the interfaces; a horizontal cylinder (4) used for pushing a releasing handle part (51) of the 120 valve (5) to tilt is mounted on the test clamping panel (7), and a piston rod of the horizontal cylinder (4) extends into the noise reduction box (3).
2. The noise reducer of 120-valve test bed according to claim 1, wherein a positioning sleeve (31) is connected to the interface.
3. A noise reducer for 120-valve test stand according to claim 2, characterized in that a sealing cushion (32) for sealing the exhaust port (52) of the 120-valve (5) is connected to the positioning sleeve (31).
4. The noise reduction device of the 120-valve test bed is characterized in that the lifting mechanism (2) comprises a lifting cylinder, a cylinder sleeve of the lifting cylinder is installed on the fixed support (1), and a piston rod of the lifting cylinder is connected with the noise reduction box (3).
5. The noise reduction device of the 120-valve test bed according to claim 1, wherein a guide sleeve (11) is arranged on the fixed support (1), a guide rod (12) is sleeved in the guide sleeve (11), and one end of the guide rod (12) is connected with the noise reduction box (3).
6. The noise reduction device of the 120-valve test bed is characterized in that the number of the guide sleeves (11) on the fixed support (1) is two, and the two guide sleeves (11) are respectively arranged on two sides of the lifting mechanism (2).
7. A noise reduction device for a 120-valve test bed according to claim 5, characterized in that a limiting structure (13) is connected to one end of the guide rod (12) far away from the noise reduction box (3).
8. A noise reduction device for a 120-valve test bed according to claim 7, characterized in that the limiting structure (13) is a limiting clamp, and the limiting clamp is clamped on the guide rod (12).
9. A noise reducer of 120-valve test stand according to claim 1, characterized in that a silencer (33) is connected to the noise reduction box (3).
10. A noise reducer for 120-valve test bed according to any one of claims 1-9, characterized in that a positioning guide device (14) is fixed on the noise reducer box (3), and a piston rod of the horizontal cylinder (4) passes through the positioning guide device (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110737039.1A CN113654790A (en) | 2021-06-30 | 2021-06-30 | Noise reduction device of 120-valve test bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110737039.1A CN113654790A (en) | 2021-06-30 | 2021-06-30 | Noise reduction device of 120-valve test bed |
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| Publication Number | Publication Date |
|---|---|
| CN113654790A true CN113654790A (en) | 2021-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110737039.1A Pending CN113654790A (en) | 2021-06-30 | 2021-06-30 | Noise reduction device of 120-valve test bed |
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| CN (1) | CN113654790A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201138296Y (en) * | 2007-12-25 | 2008-10-22 | 青岛四方车辆研究所有限公司 | Tri-valve test platform |
| CN205175678U (en) * | 2015-12-07 | 2016-04-20 | 成都铁路局贵阳南车辆段 | 120 device of making an uproar falls in valve test bench |
| CN209264278U (en) * | 2018-12-28 | 2019-08-16 | 太原鹏跃电子科技有限公司 | A kind of closed noise reduction testing stand of brake valve |
| CN209356192U (en) * | 2019-01-11 | 2019-09-06 | 合肥美亚光电技术股份有限公司 | For spraying the denoising device and spray valve detection device of valve detection device |
| US20200355295A1 (en) * | 2017-11-01 | 2020-11-12 | General Technologies Corp. | Valve-diagnostic system and device |
-
2021
- 2021-06-30 CN CN202110737039.1A patent/CN113654790A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201138296Y (en) * | 2007-12-25 | 2008-10-22 | 青岛四方车辆研究所有限公司 | Tri-valve test platform |
| CN205175678U (en) * | 2015-12-07 | 2016-04-20 | 成都铁路局贵阳南车辆段 | 120 device of making an uproar falls in valve test bench |
| US20200355295A1 (en) * | 2017-11-01 | 2020-11-12 | General Technologies Corp. | Valve-diagnostic system and device |
| CN209264278U (en) * | 2018-12-28 | 2019-08-16 | 太原鹏跃电子科技有限公司 | A kind of closed noise reduction testing stand of brake valve |
| CN209356192U (en) * | 2019-01-11 | 2019-09-06 | 合肥美亚光电技术股份有限公司 | For spraying the denoising device and spray valve detection device of valve detection device |
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