CN202886067U - Gas tightness detection machine of engine cylinder head intake and exhaust valves - Google Patents
Gas tightness detection machine of engine cylinder head intake and exhaust valves Download PDFInfo
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- CN202886067U CN202886067U CN 201220568249 CN201220568249U CN202886067U CN 202886067 U CN202886067 U CN 202886067U CN 201220568249 CN201220568249 CN 201220568249 CN 201220568249 U CN201220568249 U CN 201220568249U CN 202886067 U CN202886067 U CN 202886067U
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- 238000001514 detection method Methods 0.000 title claims abstract description 49
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 6
- 229920003023 plastic Polymers 0.000 claims abstract description 3
- 239000004033 plastic Substances 0.000 claims abstract description 3
- 238000010304 firing Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000005056 compaction Methods 0.000 abstract 3
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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Abstract
The utility model discloses a gas tightness detection machine of an engine cylinder head intake and exhaust valves, which comprises a rack, a gas tightness detector, a detection platform and a compaction cylinder, wherein the gas tightness detector, the detection platform and the compaction cylinder are installed on the rack, a plugging cover used for sealing a cylinder head combustion chamber is installed on the compaction cylinder, a spark plug hole plugging cylinder and an air door plugging mechanism are installed on the detection platform, the air door plugging mechanism comprises a telescopic cylinder, a clamping cylinder, a clamping part and a fixed sleeve, the clamping cylinder is fixed on a piston rod of the telescopic cylinder through a cylinder connecting sleeve, one end of the clamping part is fixedly connected with the clamping cylinder, the other end of the clamping part is provided with a plurality of clamping jaws which are made of plastic materials, and the clamping part is matched with the fixed sleeve in a sliding way and linearly moves under the drive of the clamping cylinder, thus releasing or clamping a cylinder head air door rod to be detected by the clamping jaws on the clamping part. The gas tightness detection machine has a simple structure, low manufacturing and maintenance costs and less designed cylinder head plugging points and can be used for effectively improving the measurement accuracy.
Description
Technical field
The utility model relates to air-tightness detection device, is specifically related to a kind of engine cylinder head inlet and outlet door air tightness detection machine.
Background technology
Therefore the impermeability of the inlet and outlet door of motor car engine cylinder end is most important, will directly affect the performance of engine, and before final assembly, detection machine that need to be by special use detects the impermeability of cylinder head inlet and outlet door.At present, more common detection machine as shown in Figure 6, mainly comprise clamping cylinder 3 and a plurality of shutoff cylinder, this detection machine is when detecting, clamping cylinder faces down from detection platform and compresses the cylinder head to be measured 4 that is placed on the detection platform, then inlet valve hold out against cylinder 91 and exhaust valve hold out against cylinder 92 respectively immediate roof be pressed in advancing of cylinder head to be measured, on the exhaust valve, draft tube shutoff cylinder 93 and gas outlet shutoff cylinder 94 are respectively to advancing, the gas exhaust duct end face carries out shutoff, inlet valve sealing cylinder 95 and exhaust valve sealing cylinder 96 are respectively to advancing, exhaust valve port seals, at last controlling airtight detector inflates the airtight chamber of cylinder head to be measured again, after inflation a period of time, stop inflation, judge that by the situation of pressure drop cylinder head advances again, the air-tightness of exhaust valve.But there is the more problem of shutoff point in above detection machine, if problem appears in one of them shutoff point, then will affect whole detection data, therefore reliability that should the detection machine is not high, simultaneously because the shutoff cylinder of its required configuration is more, therefore the debugging of equipment and keep in repair loaded down with trivial detailsly, and so that cost is higher.
Summary of the invention
It is a kind of simple in structure that the purpose of this utility model is to provide, the engine cylinder head inlet and outlet door air tightness detection machine that reliability is high.
Engine cylinder head inlet and outlet door air tightness detection machine described in the utility model, comprise frame, and rack-mounted airtight detector, detection platform and clamping cylinder, described clamping cylinder is positioned at the top of detection platform, at the piston rod of clamping cylinder capping for airtight cylinder head to be measured firing chamber is installed, offer inflation inlet on the capping, airtight detector is communicated with inflation inlet by pipeline; In described detection platform spark-plug hole shutoff cylinder and the stifled mechanism of air valve seal are installed, described valve plugging mechanism respectively corresponding engine cylinder head inlet valve and exhaust valve position respectively arranges one, each valve plugging mechanism includes telescopic cylinder, clamping cylinder, clamping element and fixed cover, telescopic cylinder is installed on the detection platform, clamping cylinder is fixed on the piston rod of telescopic cylinder by the cylinder adapter sleeve, described clamping element is positioned at the through hole of fixed cover, one end and the clamping cylinder of clamping element are connected and fixed, the other end is provided with a plurality of jaws, clamping element and fixed cover are slidingly matched, clamping element drives rectilinear motion by clamping cylinder, advancing of its direction of motion and cylinder head to be measured, the exhaust valve rod axis direction is consistent, the through hole front end of described fixed cover is a tapered hole, cooperate with the jaw of clamping element end, when jaw moves in the hole, draw jaw in, described jaw advances over against cylinder head to be measured, the end of exhaust valve rod advances cylinder head to be measured, exhaust valve rod carries out clamping or release.
In order to guarantee the sealing of capping and cylinder head firing chamber end face, the port edge of described capping is soft plastic material.
After the simulated engine final assembly, valve spring is provided with pressure regulator valve to the actual force of valve stem between described telescopic cylinder and compressed air source.
Further, be evenly equipped with six jaws at described clamping element.
In order to guarantee the serviceable life of jaw, described jaw is that rigid material is made.
In described frame switch board and display control panel are installed, described switch board is connected with each cylinder, air-leakage detector and display control panel by signal wire or control line.
The principle of work of this detection machine is: will be pressed under the capping on the firing chamber of cylinder head to be measured by clamping cylinder, when compressing cylinder head to be measured, so that capping and firing chamber form a chamber; Then by spark plug shutoff cylinder shutoff is carried out in the spark-plug hole of cylinder head on the one hand; On the other hand, at first the clamping cylinder in the valve plugging mechanism spurs clamping element, so that jaw inwardly closes up, thereby clamp the valve stem in the jaw, then the telescopic cylinder in the valve plugging mechanism spurs whole clamping cylinder downwards, drives simultaneously the clamping element that is connected with clamping cylinder, and the valve stem that is clamped by jaw is further moved downward, so that valve head and valve seating fit tightly, thereby so that the formed chamber in gland bonnet and firing chamber is airtight; Inflate in this chamber with airtight detector at last, analyze again the air-tightness of chamber by airtight detector, thereby judge the impermeability of inlet and outlet door.
Described engine cylinder head inlet and outlet door air tightness detection machine of the present utility model is simple in structure, wherein the valve plugging mechanism has been realized the function of clamping and tension valve stem simultaneously, realized the effect of compression cylinder head and shutoff firing chamber by the capping that clamping cylinder drives, compare existing detection machine, the cylinder of the required assembling of the utility model still less, therefore the cost of this detection machine is lower, and Installation and Debugging are easy, reduced the later period maintenance cost.Simultaneously, because the design shutoff point of this detection machine is less, therefore reduced because of the insecure data error of being with of shutoff, improved detecting reliability.
Description of drawings
Fig. 1 is the front view of detection machine described in the utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the structural representation of the valve plugging mechanism in the utility model;
Fig. 4 is that the valve plugging mechanism is to the clamping principle schematic of valve stem;
Fig. 5 is the structural representation of the clamping element in the valve plugging mechanism;
Fig. 6 is the structural representation of existing detection machine;
The airtight detector of 1-wherein, 2-detection platform, 3-clamping cylinder, 4-cylinder head to be measured, 5-spark plug shutoff cylinder, 6-valve plugging mechanism, the 7-switch board, 8-display control panel, 31-capping, the 32-inflation inlet, 41-inlet and outlet door bar, 61-telescopic cylinder, the 62-clamping cylinder, 63-clamping element, 64-fixed cover, 65 cylinder adapter sleeves, the 66-jaw, 67-pressure regulator valve, 68-compressed air source, the 91-inlet valve holds out against cylinder, the 92-exhaust valve holds out against cylinder, 93-draft tube shutoff cylinder, 94-gas outlet shutoff cylinder, 95-inlet valve sealing cylinder, 96-exhaust valve sealing cylinder.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
Advance to engine cylinder head shown in Figure 5 such as Fig. 1, the exhaust valve air tightness detection machine, comprise movably frame, and rack-mounted airtight detector 1, detection platform 2, clamping cylinder 3, switch board 7, display control panel 8, described clamping cylinder 3 is positioned at the top of detection platform 2, at the piston rod of clamping cylinder 3 capping 31 for airtight cylinder head firing chamber is installed, offer inflation inlet 32 on the capping 31, the port edge that contacts with shutoff cylinder head 4 to be measured of this capping 31 is polyurethane material, and airtight detector 1 is communicated with inflation inlet 32 by pipeline; Spark-plug hole shutoff cylinder 5 is installed and corresponds respectively to advancing of cylinder head 4 to be measured in described detection platform 2, two valve plugging mechanisms 6 of exhaust valve, described valve plugging mechanism 6 comprises telescopic cylinder 61, clamping cylinder 62, clamping element 63 and fixed cover 64, telescopic cylinder 61 is installed on the detection platform 2, clamping cylinder 62 is fixed on the piston rod of telescopic cylinder 61 by cylinder adapter sleeve 65, between telescopic cylinder 61 and compressed air source 68, be provided with pressure regulator valve 67, described clamping element 63 is positioned at the through hole of fixed cover 64, one end and the clamping cylinder 62 of clamping element 63 are connected and fixed, the other end is provided with six jaws 66, clamping element 63 is slidingly matched with fixed cover 64, clamping element 63 drives rectilinear motion by clamping cylinder 62, advancing of its direction of motion and cylinder head to be measured, exhaust valve rod 41 axis directions are consistent, the through hole front end of described fixed cover 64 is tapered holes, cooperate with the jaw 66 of clamping element end, when jaw 66 moves in the hole, draw jaw in, described jaw 66 advances over against cylinder head to be measured, the end of exhaust valve rod 41, to advancing of cylinder head to be measured, exhaust valve rod 41 carries out clamping or release, and described switch board 7 is by signal wire or control line and each cylinder, air-leakage detector 1 is connected connection with display control panel.
The course of work of this detection machine is as follows: first cylinder head 4 to be measured is placed on the detection platform 2, this cylinder head 4 to be measured is with the inlet and outlet door bar 41 of mounting spring not yet, described inlet and outlet door bar lays respectively in six jaws in the corresponding valve plugging mechanism 6, and the firing chamber of cylinder head to be measured 4 up; Capping 31 is driven by clamping cylinder 3 and pushes down cylinder head 4 to be measured downwards from detection platform 2 tops, and blocks the firing chamber of cylinder head to be measured; Then, at first control two clamping cylinders 62 in the valve plugging mechanism 6 pulling clamping element 63 downwards, six jaws 66 on the clamping element 63 are inwardly closed up, clamp the afterbody of inlet and outlet door bar 41, control again the telescopic cylinder 61 whole clamping cylinder 62 of pulling downwards, thereby inlet and outlet door bar is spurred downwards, itself and valve seating are fitted tightly, just finished the shutoff to valve port, and the acting force of telescopic cylinder 61 pulling inlet and outlet door bars 41 can be regulated by pressure regulator valve 67, with the acting force of real simulation valve spring to inlet and outlet door bar; Simultaneously, control spark plug shutoff cylinder 5 moves upward, block the spark-plug hole of cylinder head 4 to be measured, just so that form an airtight chamber between the firing chamber of cylinder head to be measured 4 and the capping 31, open at last airtight detector 1, inflate in this chamber by inflation inlet 32, after inflation a period of time, stop inflation, make the pressure equilibrium that keeps certain hour in the chamber, by airtight detector gaseous tension in the chamber is detected again, judge by the pressure drop situation whether the impermeability of the inlet and outlet door of cylinder head meets the demands.
Claims (6)
1. an engine cylinder head inlet and outlet door air tightness detection machine comprises frame, and rack-mounted airtight detector (1), detection platform (2) and clamping cylinder (3), and described clamping cylinder is positioned at the top of detection platform, it is characterized in that:
At the piston rod of clamping cylinder capping (31) for airtight cylinder head to be measured (4) firing chamber is installed, offers inflation inlet (32) on the capping, airtight detector is communicated with inflation inlet by pipeline;
In described detection platform spark-plug hole shutoff cylinder (5) and the stifled mechanism (6) of air valve seal are installed, described valve plugging mechanism respectively corresponding engine cylinder head inlet valve and exhaust valve position respectively arranges one, each valve plugging mechanism includes telescopic cylinder (61), clamping cylinder (62), clamping element (63) and fixed cover (64), telescopic cylinder is installed on the detection platform, clamping cylinder is fixed on the piston rod of telescopic cylinder by cylinder adapter sleeve (65), described clamping element is positioned at the through hole of fixed cover, one end and the clamping cylinder of clamping element are connected and fixed, the other end is provided with a plurality of jaws (66), clamping element and fixed cover are slidingly matched, clamping element drives rectilinear motion by clamping cylinder, advancing of its direction of motion and cylinder head to be measured, exhaust valve rod (41) axis direction is consistent, the through hole front end of described fixed cover is a tapered hole, cooperate with the jaw of clamping element end, when jaw moves in the hole, draw jaw in, described jaw advances over against cylinder head to be measured, the end of exhaust valve rod advances cylinder head to be measured, exhaust valve rod carries out clamping or release.
2. engine cylinder head inlet and outlet door air tightness detection machine according to claim 1, it is characterized in that: the port edge of described capping (31) is soft plastic material.
3. engine cylinder head inlet and outlet door air tightness detection machine according to claim 1 and 2 is characterized in that: be provided with pressure regulator valve (67) between described telescopic cylinder (61) and compressed air source (68).
4. engine cylinder head inlet and outlet door air tightness detection machine according to claim 3 is characterized in that: be evenly equipped with six jaws (66) at described clamping element (63).
5. engine cylinder head inlet and outlet door air tightness detection machine according to claim 4, it is characterized in that: described jaw is that rigid material is made.
6. engine cylinder head inlet and outlet door air tightness detection machine according to claim 3, it is characterized in that: in described frame switch board (7) and display control panel (8) are installed, described switch board is connected with display control panel with each cylinder, air-leakage detector (1) by signal wire or control line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220568249 CN202886067U (en) | 2012-10-31 | 2012-10-31 | Gas tightness detection machine of engine cylinder head intake and exhaust valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220568249 CN202886067U (en) | 2012-10-31 | 2012-10-31 | Gas tightness detection machine of engine cylinder head intake and exhaust valves |
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| Publication Number | Publication Date |
|---|---|
| CN202886067U true CN202886067U (en) | 2013-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220568249 Expired - Fee Related CN202886067U (en) | 2012-10-31 | 2012-10-31 | Gas tightness detection machine of engine cylinder head intake and exhaust valves |
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| CN (1) | CN202886067U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105300630A (en) * | 2015-11-03 | 2016-02-03 | 宁波管通机械有限公司 | Hermetic sealing program control testing stand |
| CN107290107A (en) * | 2017-07-21 | 2017-10-24 | 安徽华艾堂医疗科技有限公司 | A kind of cylinder end valve leak tester |
| CN108254136A (en) * | 2018-01-25 | 2018-07-06 | 重庆科勒发动机有限公司 | A kind of cylinder end valve air-tightness automatic detection system |
| CN108982017A (en) * | 2018-08-02 | 2018-12-11 | 宁波普泽机电有限公司 | A kind of motor test device for air tightness suitable for polymorphic type |
| CN109029868A (en) * | 2018-07-16 | 2018-12-18 | 苏州劲翔电子科技有限公司 | Multistation air-tightness integral test system |
| CN109084941A (en) * | 2018-07-12 | 2018-12-25 | 广东井得电机有限公司 | A kind of starter leakage detection apparatus |
| CN110426164A (en) * | 2019-09-03 | 2019-11-08 | 长春近江汽车零部件有限公司 | A kind of airtight detecting apparatus and method |
| CN115508013A (en) * | 2022-11-16 | 2022-12-23 | 西安成立航空制造有限公司 | Aeroengine machine casket gas tightness detection device |
| RU2789571C1 (en) * | 2022-06-24 | 2023-02-06 | Алексей Николаевич Звеков | Method for automated localization of leaky timing valves |
| CN116105949A (en) * | 2023-04-13 | 2023-05-12 | 苏州科联盈自动化系统有限公司 | Air tightness detection and pin, screw and plug assembling equipment for lower cylinder body of engine |
-
2012
- 2012-10-31 CN CN 201220568249 patent/CN202886067U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105300630A (en) * | 2015-11-03 | 2016-02-03 | 宁波管通机械有限公司 | Hermetic sealing program control testing stand |
| CN107290107A (en) * | 2017-07-21 | 2017-10-24 | 安徽华艾堂医疗科技有限公司 | A kind of cylinder end valve leak tester |
| CN108254136A (en) * | 2018-01-25 | 2018-07-06 | 重庆科勒发动机有限公司 | A kind of cylinder end valve air-tightness automatic detection system |
| CN109084941A (en) * | 2018-07-12 | 2018-12-25 | 广东井得电机有限公司 | A kind of starter leakage detection apparatus |
| CN109029868A (en) * | 2018-07-16 | 2018-12-18 | 苏州劲翔电子科技有限公司 | Multistation air-tightness integral test system |
| CN108982017A (en) * | 2018-08-02 | 2018-12-11 | 宁波普泽机电有限公司 | A kind of motor test device for air tightness suitable for polymorphic type |
| CN110426164A (en) * | 2019-09-03 | 2019-11-08 | 长春近江汽车零部件有限公司 | A kind of airtight detecting apparatus and method |
| RU2789571C1 (en) * | 2022-06-24 | 2023-02-06 | Алексей Николаевич Звеков | Method for automated localization of leaky timing valves |
| CN115508013A (en) * | 2022-11-16 | 2022-12-23 | 西安成立航空制造有限公司 | Aeroengine machine casket gas tightness detection device |
| CN115508013B (en) * | 2022-11-16 | 2023-04-07 | 西安成立航空制造有限公司 | Aeroengine machine casket gas tightness detection device |
| CN116105949A (en) * | 2023-04-13 | 2023-05-12 | 苏州科联盈自动化系统有限公司 | Air tightness detection and pin, screw and plug assembling equipment for lower cylinder body of engine |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171020 Address after: 400039 Chongqing Jiulongpo Erlang venture Road No. 105 high tech Venture Park C Building 9 floor (right) Patentee after: Chongqing new emerging technology Co., Ltd. Address before: 400039 Hua Xuan Road 108, Chongqing hi tech Development Zone Patentee before: Ye Tingwei |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20181031 |