CN206540702U - Air flue test stand - Google Patents
Air flue test stand Download PDFInfo
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- CN206540702U CN206540702U CN201720010276.7U CN201720010276U CN206540702U CN 206540702 U CN206540702 U CN 206540702U CN 201720010276 U CN201720010276 U CN 201720010276U CN 206540702 U CN206540702 U CN 206540702U
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- air flue
- flowmeter
- test stand
- empty cylinder
- valve
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Abstract
The utility model provides a kind of air flue test stand, airway pressure differential pressure force snesor, empty cylinder, the tumble flow blade being rotatably arranged in the empty cylinder, speed probe, flowmeter and blower fan for measuring the tumble flow blade rotational speed including the cylinder cap mounting platform for installing cylinder cap, for measuring performance inside and outside differential pressure, the flowmeter is connected between the empty cylinder and blower fan, and the empty cylinder, flowmeter and blower interior are sequentially communicated to form the occluded air runner extended from the empty cylinder to the blower fan.The air flue test stand uses independent design Tumble and swirl measurement apparatus (being made up of empty cylinder, tumble flow blade, speed probe and flowmeter), the lifting of Tumble and swirl measurement result uniformity.
Description
Technical field
The utility model belongs to engine cylinder cover air flue steady-flow characteristic test technical field, more particularly to a kind of gas
Road testing stand.
Background technology
Air flue test stand is used for the test of the discharge coefficient and Tumble and swirl in engine inlet and outlet road, by testing gas stream
Dynamic characteristic studies the design conditions of engine cylinder cover air flue.
Existing air flue test stand, circulated power using high-pressure frequency-conversion blower fan as gas, and blower fan is adjusted by frequency converter
And then gas flow rate and air flue pressure difference are adjusted, valve stroke is adjusted using bolt top gas door rod, is measured using honeycomb aluminum momentum meter
Tumble and swirl.
The stable state air flue test stand, valve stroke regulation uses bolt top gas door rod, and bolt is 1mm teeth away from by artificial
Operation spanner swivel bolt one is enclosed as 1mm lifts, and degree of regulation is low, and different people operates its lift deviation big.
In addition, the stable state air flue test stand measures Tumble and swirl using honeycomb aluminum momentum meter, because momentum meter sensitivity is higher,
Therefore, experiment is repeated poor, repeatedly measures the result error drawn larger.
Utility model content
Technical problem to be solved in the utility model is to be measured for existing air flue test stand using honeycomb aluminum momentum
Tumble and swirl is measured, causes repeatedly to measure the larger defect of the result error drawn that there is provided a kind of air flue test stand.
The technical scheme that the utility model solution above-mentioned technical problem is used is as follows：
A kind of air flue test stand is provided, including for installing the cylinder cap mounting platform of cylinder cap, for measuring in performance
The airway pressure differential pressure force snesor of external differential, empty cylinder, the tumble flow blade being rotatably arranged in the empty cylinder, for measuring the rolling
Speed probe, flowmeter and the blower fan of blade rotational speed are flowed, the flowmeter is connected between the empty cylinder and blower fan, the sky
Cylinder, flowmeter and blower interior are sequentially communicated to form the occluded air runner extended from the empty cylinder to the blower fan.
Further, the tumble flow blade includes blade body and is connected to turning on the blade body rotation axis
Axle, the rotating shaft rotates the lateral wall for being connected and protruding from the empty cylinder with the empty cylinder, and the speed probe is arranged on institute
State on sky drum outer wall and be used for the rotating speed for measuring the rotating shaft.
Further, the air flue test stand also includes tube of pressure-stabilizing and the setting being connected between the empty cylinder and flowmeter
On the tube of pressure-stabilizing and for measuring the tube of pressure-stabilizing differential pressure pickup of the tube of pressure-stabilizing inside and outside differential pressure, the empty cylinder, tube of pressure-stabilizing,
Flowmeter and blower interior are sequentially communicated.
Further, the air flue test stand also includes the pressurizer tank being connected between the flowmeter and blower fan, described
Empty cylinder, tube of pressure-stabilizing, flowmeter, pressurizer tank and blower interior are sequentially communicated.
Further, it is provided with by-passing valve on the pressurizer tank.
Further, first mouth of pipe is set on the side wall of the tube of pressure-stabilizing, and one end of the flowmeter sets first to connect
Pipe, the other end of the flowmeter sets the second connecting tube, and one end of the pressurizer tank sets second mouth of pipe, first mouth of pipe
It is connected with first connecting tube by one first flexible joint, second mouth of pipe is soft by one second with second connecting tube
Property section connection.
Further, the air flue test stand also includes the valve stroke adjusting means of regulation valve stroke.
Further, the valve stroke adjusting means includes valve oil seal clamping tool, adjusting base, spring, regulation
The seat of honour, valve adjustments seat and gauge, the spring housing on valve stem and be supported in valve adjustments seat and adjusting base it
Between, the regulation seat of honour is bolted with adjusting base, and the valve adjustments seat is pressed in the valve stem top, the amount
Rule plug is between the regulation seat of honour and valve adjustments seat.
Further, the regulation seat of honour passes through the first bolt and the second bolt connection, first spiral shell with adjusting base
Bolt includes the first screw rod and the first nut for match with first screw rod, second bolt including the second screw rod and with it is described
Second nut of the second screw rod matching, first screw rod passes through the adjusting base from lower to upper and adjusts the side at the seat of honour,
First nut thread is connected to the top of first screw rod and compresses the regulation seat of honour, second screw rod from it is lower toward
On through the adjusting base and adjust the opposite side at the seat of honour, second nut thread is connected to the top of second screw rod
And compress the regulation seat of honour.
According to air flue test stand of the present utility model, by airway pressure differential pressure force sensor measuring air flue inside and outside differential pressure, lead to
Speed probe measurement tumble flow blade rotational speed is crossed, gas flow is measured by flowmeter, then, passes through air flue pressure difference, gas stream
Amount, valve stroke and tumble flow blade rotational speed, the stable state Tumble and swirl of air intake duct can be obtained by calculating, for engine cylinder cover
Air flue design and checking.Compared to the existing scheme that Tumble and swirl is measured using honeycomb aluminum momentum meter, the air flue test stand uses only
Erect meter Tumble and swirl measurement apparatus (being made up of empty cylinder, tumble flow blade, speed probe and flowmeter), Tumble and swirl measurement result one
The lifting of cause property.
Brief description of the drawings
Fig. 1 is the schematic diagram for the air flue test stand that the embodiment of the utility model one is provided；
Fig. 2 is the schematic diagram of its valve stroke adjusting means of the air flue test stand of the embodiment of the utility model one offer；
Fig. 3 is air flue test stand its cylinder cap mounting platform, empty cylinder and the tube of pressure-stabilizing that the embodiment of the utility model one is provided
Assembling schematic diagram；
Reference in Figure of description is as follows：
1st, cylinder cap mounting platform；101st, table top；102nd, support frame；
2nd, airway pressure differential pressure force snesor；
3rd, empty cylinder；
4th, tumble flow blade；401st, blade body；402nd, rotating shaft；
5th, speed probe；
6th, flowmeter；601st, the first connecting tube；602nd, the second connecting tube；
7th, blower fan；
8th, tube of pressure-stabilizing；801st, first mouth of pipe；
9th, tube of pressure-stabilizing differential pressure pickup；
10th, pressurizer tank；1001st, second mouth of pipe；
11st, by-passing valve；
12nd, the first flexible joint；
13rd, the second flexible joint；
14th, valve stroke adjusting means；1401st, valve oil seal clamping tool；1402nd, adjusting base；1403rd, spring；
1404th, the seat of honour is adjusted；1405th, valve adjustments seat；1406th, gauge；1407th, the first screw rod；1408th, the first nut；1409th, second
Screw rod；1410th, the second nut；
100th, cylinder cap；
200th, valve；2001st, valve stem.
Embodiment
In order that technical problem, technical scheme and beneficial effect that the utility model is solved are more clearly understood, below
With reference to drawings and Examples, the utility model is described in further detail.It should be appreciated that specific reality described herein
Example is applied only to explain the utility model, is not used to limit the utility model.
Herein, the upper and lower upper and lower orientation referred only in figure, does not constitute to actual use orientation and limits.
As shown in Figure 1 to Figure 3, the air flue test stand that the embodiment of the utility model one is provided, including for installing cylinder cap 100
Cylinder cap mounting platform 1, the airway pressure differential pressure force snesor 2 for measuring the air flue inside and outside differential pressure of cylinder cap 100, empty cylinder 3, rotate and set
Put the tumble flow blade 4 in the empty cylinder 3, the speed probe 5 for measuring the rotating speed of tumble flow blade 4, flowmeter 6 and use
In the blower fan 7 for providing air flue negative pressure, the flowmeter 6 is connected between the empty cylinder 3 and blower fan 7, the empty cylinder 3, flowmeter 6
And be sequentially communicated to form the occluded air runner to the blower fan 7 extended from the empty cylinder 3 inside blower fan 7.
In the present embodiment, as shown in figure 3, cylinder cap mounting platform 1 includes the support frame of table top 101 and supporting bable tops 101
102, multiple through holes (such as four) are provided with table top 101, and the position of multiple through holes is corresponding with the screwed hole on cylinder cap end face,
With this by cylinder bolt, cylinder cap 100 can be arranged on cylinder cap mounting platform 1.
As shown in figure 3, the tumble flow blade 4 includes blade body 401 and is connected to the rotation axis of blade body 401
On rotating shaft 402, the rotating shaft 402 rotates the lateral wall for being connected and protruding from the empty cylinder 3, the rotating speed with the empty cylinder 3
Sensor 5 is arranged on the outer wall of empty cylinder 3 and is used for the rotating speed for measuring the rotating shaft 402.So, tumble flow blade 4 is in air-flow
Drive under can be rotated relative to empty cylinder 3, the rotating speed of tumble flow blade 4 can be measured by speed probe 5.
As shown in figure 1, the air flue test stand also include being connected to tube of pressure-stabilizing 8 between the empty cylinder 3 and flowmeter 6 and
It is arranged on the tube of pressure-stabilizing 8 and is used for the tube of pressure-stabilizing differential pressure pickup 9 for measuring the inside and outside differential pressure of tube of pressure-stabilizing 8, the empty cylinder
3rd, it is sequentially communicated inside tube of pressure-stabilizing 8, flowmeter 6 and blower fan 7.Because empty cylinder 3 is vertical direction arrangement, and flowmeter 6 is level
It is arranged on gas flow pipe road, thus needs to turn round (air-flow steering) between empty cylinder 3 and flowmeter 6, sets steady in corner
Pressure cylinder 8 can keep the pressure stability after air-flow steering.
As shown in figure 1, the air flue test stand also includes the pressurizer tank 10 being connected between the flowmeter 6 and blower fan 7,
It is sequentially communicated inside the empty cylinder 3, tube of pressure-stabilizing 8, flowmeter 6, pressurizer tank 10 and blower fan 7, to be formed from the empty cylinder 3 to described
The occluded air runner that blower fan 7 extends.
As shown in figure 1, set first mouth of pipe 801 on the side wall of the tube of pressure-stabilizing 8, one end of the flowmeter 6 sets the
One connecting tube 601, the other end of the flowmeter 6 sets the second connecting tube 602, and one end of the pressurizer tank 10 sets second to manage
Mouth 1001, first mouth of pipe 801 is connected with first connecting tube 601 by one first flexible joint 12, second mouth of pipe
1001 are connected with second connecting tube 602 by one second flexible joint 13.
With this, along the flow direction of air-flow, empty cylinder 3, tube of pressure-stabilizing 8, flowmeter 6, pressurizer tank 10, blower fan 7 are sequentially communicated.
In the present embodiment, blower fan 7 is frequency conversion fan.Blower fan 7 itself can the air quantity (exhausting or blowing) of itself, to adapt to
The engine of different displacements.But, the air quantity of frequency conversion fan 7 is not continuously adjusted by 0 to maximum, thus, only rely on frequency conversion
Blower fan is difficult to realize continuously adjusting for air flue air quantity.Thus, by-passing valve 11 is set on the pressurizer tank 10, by controlling to bypass
The aperture of valve 11, to realize continuously adjusting for air flue air quantity.
As shown in Fig. 2 the air flue test stand also includes the valve stroke adjusting means 14 of the regulation lift of valve 200.Institute
Stating valve stroke adjusting means 14 includes valve oil seal clamping tool 1401, adjusting base 1402, spring 1403, the regulation seat of honour
1404th, valve adjustments seat 1405 and gauge 1406, the spring 1403 are enclosed on valve stem 2001 and are supported in the valve and adjusts
Save between seat 1405 and adjusting base 1402, the regulation seat of honour 1404 is bolted with adjusting base 1402, the gas
Door adjustment seat 1405 is pressed in the top of valve stem 2001, and the gauge 1406 is filled in the regulation seat of honour 1404 and valve adjustments
Between seat 1405.
In the present embodiment, gauge 1406 is thin slice gauge, and its thickness is 1~10mm.
As shown in Fig. 2 the regulation seat of honour 1404 passes through the first bolt and the second bolt connection, institute with adjusting base 1402
Stating the first bolt includes the first screw rod 1407 and the first nut 1408 matched with first screw rod 1407, second bolt
The second nut 1410 matched including the second screw rod 1409 and with second screw rod 1409, first screw rod 1407 from it is lower toward
On through the adjusting base 1402 and adjust the side at the seat of honour 1404, first nut 1408 is threaded in described first
The top of screw rod 1407 simultaneously compresses the regulation seat of honour 1404, and second screw rod 1409 passes through the adjusting base from lower to upper
1402 and the opposite side at the seat of honour 1404 is adjusted, second nut 1410 is threaded in the top of second screw rod 1409 simultaneously
Compress the regulation seat of honour 1404.
The Principles of Regulation of the valve stroke adjusting means 14 are as follows：
First, by screwing the first nut 1408, the second nut 1410, regulation valve oil seal clamping tool 1401 and regulation
The distance between base 1402 so that valve oil seal clamping tool 1401 clamps valve oil seal jointly with adjusting base 1402, so
Afterwards by screwing the first nut 1408, the second nut 1410, the height at the adjustment regulation seat of honour 1404 finds valve stroke 0 with this
Point (is completely closed) corresponding to valve.Then the gauge 1406 of predetermined thickness is filled in into the regulation seat of honour 1404, valve adjustments seat
Between 1405, valve adjustments seat 1405 drives valve stem 2001 to move down, and compression spring 1403.The thickness of gauge 1406 is to adjust
The valve stroke of section extremely.
When needing to change valve stroke, it is only necessary to remove original gauge 1406, fill in the gauge 1406 of another thickness
.Relative to prior art, valve stroke degree of regulation and operation convenience have obtained larger lifting.
Valve stroke adjusting means 14 above is applied to inlet valve and exhaust valve.
In the present embodiment, blower fan 7 be able to can also be dried with exhausting.That is, when the suction opeing of blower fan 7 is connected into pressurizer tank 10
When, blower fan 7 provides air flue negative pressure, to carry out the experiment of air intake duct.When the blowing mouth of blower fan 7 is connected into pressurizer tank 10, blower fan 7
Positive Airway Pressure is provided, with the experiment being exhausted.
For example, during air intake test, air flue negative pressure is provided by frequency conversion fan.Gas enters from the air inlet of cylinder cap 100,
Empty cylinder 3 is reached by inlet valve, then by the laggard measurement flow of gauge 6 that becomes a mandarin of the voltage stabilizing of tube of pressure-stabilizing 8, through pressurizer tank 10, is most passed through afterwards
Blower fan 7 is crossed to blow out.
For example, during exhaust duct experiment, Positive Airway Pressure is provided by frequency conversion fan.Gas is blown out by blower fan 7, through pressurizer tank
10, flow is measured into flowmeter 6, then empty cylinder 3 is reached after the voltage stabilizing of tube of pressure-stabilizing 8, drive tumble flow blade 4 to revolve at empty cylinder 3
Turn (measurement of tumble flow blade rotational speed), then by exhaust valve, finally blown out from the gas outlet of cylinder cap 100.
The air flue test stand of above-described embodiment, air flue pressure difference, gas flow, valve liter can be measured by each sensor
The physical quantity such as journey and tumble flow blade rotational speed, (is adopted by the computer data TT＆C system being connected with each sensor comprising data
Collecting system and computer etc.) each physical quantity is stored and handled, to draw result of the test.For example, can be by calculating
Air flue pressure difference, valve stroke and gas flow can obtain the steady state flow coefficient of gas off-take, by air flue pressure difference, gas flow,
Valve stroke and tumble flow blade rotational speed can obtain the stable state Tumble and swirl of air intake duct by calculating.These data can be used for starting
Machine performance is designed and verified.Compared to the existing scheme that Tumble and swirl is measured using honeycomb aluminum momentum meter, the air flue test stand
(it is made up of using independent design Tumble and swirl measurement apparatus empty cylinder, tumble flow blade, speed probe and flowmeter), Tumble and swirl measurement
As a result uniformity is lifted.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Any modifications, equivalent substitutions and improvements made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (9)
1. a kind of air flue test stand, it is characterised in that including the cylinder cap mounting platform for installing cylinder cap, for measuring cylinder cap gas
The airway pressure differential pressure force snesor of road inside and outside differential pressure, empty cylinder, the tumble flow blade being rotatably arranged in the empty cylinder, for measuring
The speed probe, flowmeter and blower fan of tumble flow blade rotational speed are stated, the flowmeter is connected between the empty cylinder and blower fan, institute
Empty cylinder, flowmeter and blower interior is stated to be sequentially communicated to form the occluded air runner extended from the empty cylinder to the blower fan.
2. air flue test stand according to claim 1, it is characterised in that the tumble flow blade includes blade body and connection
Rotating shaft on the blade body rotation axis, the rotating shaft rotates with the empty cylinder and is connected and protrudes from the outer of the empty cylinder
Side wall, the speed probe is arranged on the empty drum outer wall and is used for the rotating speed for measuring the rotating shaft.
3. air flue test stand according to claim 1, it is characterised in that the air flue test stand is also described including being connected to
Tube of pressure-stabilizing between empty cylinder and flowmeter and it is arranged on the tube of pressure-stabilizing and for measuring the steady of the tube of pressure-stabilizing inside and outside differential pressure
Pressure cylinder differential pressure pickup, the empty cylinder, tube of pressure-stabilizing, flowmeter and blower interior are sequentially communicated.
4. air flue test stand according to claim 3, it is characterised in that the air flue test stand is also described including being connected to
Pressurizer tank between flowmeter and blower fan, the empty cylinder, tube of pressure-stabilizing, flowmeter, pressurizer tank and blower interior are sequentially communicated.
5. air flue test stand according to claim 4, it is characterised in that be provided with by-passing valve on the pressurizer tank.
6. air flue test stand according to claim 4, it is characterised in that set first to manage on the side wall of the tube of pressure-stabilizing
Mouthful, one end of the flowmeter sets the first connecting tube, and the other end of the flowmeter sets the second connecting tube, the pressurizer tank
One end second mouth of pipe is set, first mouth of pipe is connected with first connecting tube by one first flexible joint, described second
The mouth of pipe is connected with second connecting tube by one second flexible joint.
7. the air flue test stand according to claim 1-6 any one, it is characterised in that the air flue test stand also includes
Adjust the valve stroke adjusting means of valve stroke.
8. air flue test stand according to claim 7, it is characterised in that the valve stroke adjusting means includes valve oil
Clamping tool, adjusting base, spring, the regulation seat of honour, valve adjustments seat and gauge are sealed, the spring housing is on valve stem and supports
Between valve adjustments seat and adjusting base, the regulation seat of honour is bolted with adjusting base, and the valve is adjusted
Section seat is pressed in the valve stem top, and the gauge plug is between the regulation seat of honour and valve adjustments seat.
9. air flue test stand according to claim 8, it is characterised in that the regulation seat of honour passes through first with adjusting base
Bolt and the second bolt connection, first bolt include the first screw rod and the first nut matched with first screw rod, institute
Stating the second bolt includes the second screw rod and the second nut matched with second screw rod, and first screw rod is passed through from lower to upper
The adjusting base and the side for adjusting the seat of honour, first nut thread are connected to the top of first screw rod and compress institute
The regulation seat of honour is stated, second screw rod is from lower to upper through the adjusting base and the opposite side at the regulation seat of honour, second spiral shell
Box thread is connected to the top of second screw rod and compresses the regulation seat of honour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720010276.7U CN206540702U (en) | 2017-01-05 | 2017-01-05 | Air flue test stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720010276.7U CN206540702U (en) | 2017-01-05 | 2017-01-05 | Air flue test stand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206540702U true CN206540702U (en) | 2017-10-03 |
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ID=59938790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720010276.7U Active CN206540702U (en) | 2017-01-05 | 2017-01-05 | Air flue test stand |
Country Status (1)
| Country | Link |
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| CN (1) | CN206540702U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108303260A (en) * | 2018-01-08 | 2018-07-20 | 广州汽车集团股份有限公司 | Air flue test stand |
| CN110044633A (en) * | 2019-06-05 | 2019-07-23 | 吉林大学 | A kind of engine cylinder cover experimental rig of replaceable air intake duct |
| CN112302755A (en) * | 2019-08-02 | 2021-02-02 | 广州汽车集团股份有限公司 | Engine valve lift adjusting device |
| CN113405801A (en) * | 2021-08-19 | 2021-09-17 | 潍柴动力股份有限公司 | Rolling flow test tool and rolling flow test equipment |
| CN113898507A (en) * | 2021-08-24 | 2022-01-07 | 义乌吉利动力总成有限公司 | Flow coefficient testing method and optimization method for hybrid engine and testing bench |
-
2017
- 2017-01-05 CN CN201720010276.7U patent/CN206540702U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108303260A (en) * | 2018-01-08 | 2018-07-20 | 广州汽车集团股份有限公司 | Air flue test stand |
| CN110044633A (en) * | 2019-06-05 | 2019-07-23 | 吉林大学 | A kind of engine cylinder cover experimental rig of replaceable air intake duct |
| CN110044633B (en) * | 2019-06-05 | 2024-01-26 | 吉林大学 | Engine cylinder cover test device with replaceable air inlet channel |
| CN112302755A (en) * | 2019-08-02 | 2021-02-02 | 广州汽车集团股份有限公司 | Engine valve lift adjusting device |
| CN113405801A (en) * | 2021-08-19 | 2021-09-17 | 潍柴动力股份有限公司 | Rolling flow test tool and rolling flow test equipment |
| CN113405801B (en) * | 2021-08-19 | 2021-12-21 | 潍柴动力股份有限公司 | Rolling flow test tool and rolling flow test equipment |
| CN113898507A (en) * | 2021-08-24 | 2022-01-07 | 义乌吉利动力总成有限公司 | Flow coefficient testing method and optimization method for hybrid engine and testing bench |
| CN113898507B (en) * | 2021-08-24 | 2022-09-13 | 义乌吉利动力总成有限公司 | Flow coefficient testing method, optimization method and testing rack of hybrid engine |
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