CN220575729U - Mounting device for cylinder cover air valve assembly of high-speed diesel engine - Google Patents
Mounting device for cylinder cover air valve assembly of high-speed diesel engine Download PDFInfo
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- CN220575729U CN220575729U CN202320669324.9U CN202320669324U CN220575729U CN 220575729 U CN220575729 U CN 220575729U CN 202320669324 U CN202320669324 U CN 202320669324U CN 220575729 U CN220575729 U CN 220575729U
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- 238000003825 pressing Methods 0.000 claims abstract description 36
- 230000007306 turnover Effects 0.000 claims abstract description 32
- 230000001681 protective effect Effects 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 15
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 18
- 238000011900 installation process Methods 0.000 abstract description 6
- 238000004140 cleaning Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract 1
- 238000004080 punching Methods 0.000 description 4
- 238000007689 inspection Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Abstract
A mounting device for a cylinder cover air valve assembly of a high-speed diesel engine. The device comprises a motor, a turnover mechanism and a hydraulic stamping mechanism. The device integrates different stations of the cylinder cover on the turnover mechanism in the installation process of the cylinder cover air valve assembly. Through the electric drive tilting mechanism, realize clockwise 90 one-way rotation and homing of tilting mechanism, make things convenient for the staff to carry out the cleaning and the detection operation of pneumatic valve installation face, and pneumatic valve installation operation to the upper plane and the lower bottom surface of cylinder cap as required. The hydraulic stamping device of the device uniformly applies the pressing force to the air valve assembly in the horizontal state of the turnover mechanism, so that the accuracy of the air valve assembly in the vertical direction is guaranteed, the assembly efficiency is high, the accuracy is high, the safety is high, and the applicability is strong.
Description
Technical Field
The utility model belongs to the technical field of high-speed diesel engine components, and particularly relates to a mounting device of a cylinder cover air valve component of a high-speed diesel engine.
Background
The diesel engine controls the gas working process in the cylinder by controlling the opening and closing of the air inlet valve and the air outlet valve, the injection time and the injection quantity of the injector, the air inlet valve and the air outlet valve need to be opened and closed once in each working cycle of the diesel engine, and when the diesel engine runs at a high speed, the air inlet valve and the air outlet valve need to run at a high speed, the air valve seat is flapped, and the combustion pressure and the high temperature from the cylinder are born.
For this purpose, the intake and exhaust valves are critical components of the diesel engine, and the manufacturing and installation process is subject to strict regulations.
For a certain type of high-speed machine, a workshop uses a single assembly mode to assemble and disassemble the air inlet and outlet valves of each cylinder.
When the air valve is installed, an operator firstly uses a hoisting tool to turn over the air cylinder cover, then cleans the air valve seat and the air valve guide sleeve, manually installs the air valve body after checking the matching size of the air valve by using a plug gauge, hoisting the air cylinder cover again, and sequentially installing a rotary valve mechanism, an inner spring, an outer spring and an upper spring seat of the air inlet valve and the air outlet valve after the air cylinder cover is straightened; finally, the spring upper seat is pressed, the conical block is installed, and the installation of the air valve is completed.
In the traditional air valve installation process, a traveling crane is required to carry out multiple rollover and restoration operations on the cylinder cover, the process is complex, and the working efficiency and the safety are low. In the traditional air valve installation process, a simple tool is used for pressing an air valve spring assembly, and a half cone block at the top of the air valve assembly is installed to complete the installation of the air valve. The mounting has the defects that the pressing force of the simple tool is unstable, the precision of the pressing force in the vertical direction cannot be ensured, and the friction and abrasion between the air valve body and the air valve guide rod are easy to cause.
In a word, in order to meet the requirement of cleaning the installation surface of the air valve, the installation of the spring component at the top of the air valve meets the requirement of penetrating the air valve from the bottom of the cylinder cover, and the cylinder cover needs to be repeatedly hoisted and restored. The traditional method for installing the half cone block of the single air valve has the hidden danger of friction to the air valve body. The traditional air valve installation method cannot meet the continuity of the whole air valve installation process, is high in working strength, requires more manpower, consumes long time, is inconvenient to operate, is low in efficiency and has potential safety hazards.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides a device and a mounting method for a cylinder cover air valve of a high-speed diesel engine, which can simplify the assembly process of an air inlet valve and an air outlet valve, improve the on-site assembly accuracy, solve the problem of low assembly efficiency of the air valve and improve the assembly efficiency and the safety.
In order to achieve the above object, the solution of the present utility model is as follows:
the mounting device of the high-speed diesel engine cylinder cover air valve assembly is characterized by comprising a turnover mechanism, a hydraulic stamping mechanism and a motor; the turnover mechanism is driven by the motor to realize unidirectional rotation and homing of the turnover table by 90 degrees clockwise;
the hydraulic stamping mechanism slides on the overturning platform track of the overturning mechanism and works when the overturning platform is in a horizontal position.
Further, the turnover mechanism comprises a turnover table, a swing arm, a reducing pin, a special-shaped pin, a support column, a compacting device and an air valve disc protecting cover;
the overturning platform is of a double-layer frame structure, one plane is provided with the reducing pin, the special-shaped pin, the support column and the pressing device, the overturning platform is used as a supporting surface of a cylinder cover, and the other plane is provided with the air valve disc protecting cover;
swing arms are respectively arranged at two ends of the overturning platform, and a rotating shaft of the motor is connected with the swing arms and is used for driving the swing arms to rotate, so that 90-degree rotation of the overturning platform is realized;
the outer side surface of the overturning platform is provided with a track for the hydraulic stamping mechanism to slide, so that the hydraulic stamping mechanism moves to the position of the cylinder cover to be assembled on the overturning platform;
the outer edge of the overturning platform is provided with a positioning bolt hole for fixing the hydraulic stamping mechanism.
The air valve disc protective cover is of a flat plate support structure and mainly comprises a protective plate, a push rod, two groups of telescopic rods, two groups of pull rods, two groups of springs, two groups of adjusting nuts, two groups of pull blocks, 4 shaft position screws and two groups of buckles.
The air valve disc protective cover is opened and closed by disengaging and compressing the hasp and the pressing block on the overturning platform.
The opening angle of the air valve disc protective cover is realized by the working length of the telescopic rod.
The rotating process of opening and closing the air valve disc protective cover is realized by pushing and pulling the push rod.
Further, the open and close states of the air valve disc protective cover are mainly achieved through the cooperation actions of a pull rod, a spring, an adjusting nut, a pull block, an axial screw and a snap.
Further, when the air valve disc protective cover is closed, the spring is in a compressed state through adjustment of the adjusting nut, the spring applies pressure to the pull block, and the pull block applies pressure to the hasp through the axial screw, so that the hasp is tightly pressed on the pressing block on the overturning platform, and closing is achieved.
Further, when the air valve disc protective cover needs to be opened, two groups of pull rods are manually pulled, the pull rods enable the pull blocks to move, the pull blocks drive the buckles to rotate around the 2# axial screws through the 1# axial screws, the buckles are separated from the pressing blocks on the overturning table, the two groups of telescopic rods synchronously stretch, when the telescopic rods stretch to the end position, the protective plate and the overturning table form an angle of 90 degrees, and the air valve disc protective cover is completely opened.
Further, the reducing pin, the special-shaped pin, the support column and the compacting device are designed according to the cylinder cover; the reducing pin is arranged at the position of the cylinder cover corresponding to the overturning platform in the 4# stud hole, and the special-shaped pin is arranged at the position of the cylinder cover corresponding to the overturning platform in the 8# stud hole and used for positioning the cylinder cover at the overturning platform; the support column is contacted with the outer contour surface of the exhaust outlet of the cylinder cover, and is used for supporting the cylinder cover when the turnover mechanism is turned over for 90 degrees in one direction; the compressing device is arranged on the upper surface of the air inlet side of the cylinder cover and used for fixing the cylinder cover in the horizontal and vertical states.
Further, the hydraulic stamping mechanism comprises a hydraulic stamping bracket, a handle pin shaft, a hydraulic cylinder and a pressing plate;
the hydraulic cylinder is fixed on the hydraulic stamping support, a piston rod of the hydraulic cylinder is connected with the pressing plate, and pressure is applied to the pressing plate through hydraulic action to drive downward displacement and pressure of the pressing plate, so that the air valve assembly of the cylinder cover is mounted;
the handle pin shaft is matched with the positioning pin hole on the outer edge of the overturning platform, so that the hydraulic stamping support is fixed on the overturning platform.
The installation device for the cylinder cover air valve assembly of the high-speed diesel engine is used for realizing the installation method of the cylinder cover air valve assembly, and is characterized by comprising the following steps:
(1) the cylinder is hoisted above the overturning platform, and the position of the cylinder on the overturning platform is ensured through the positioning guide of the reducing pin and the special-shaped pin; pressing the cylinder cover from the upper plane of the cylinder cover air inlet by using a pressing device;
(2) starting a motor, starting a turnover mechanism, enabling the turnover table to rotate for 90 degrees in one direction, and ensuring that the cylinder cover is in a vertical position;
(3) opening the air valve disc protective cover, cleaning the cylinder cover and the air valve, and ensuring that the installation condition is met;
(4) penetrating an air inlet valve body and an air outlet valve body from the bottom of the cylinder cover, closing an air valve disc protective cover, and checking the installation condition of the air valve body again from the front of the cylinder cover;
(5) starting the turnover mechanism to enable the turnover table to return unidirectionally and rotate by 90 degrees, and enabling the cylinder cover to be in a horizontal position again;
(6) a rotary valve mechanism, an inner air valve spring, an outer air valve spring and an upper spring seat are sequentially arranged in an air inlet valve cavity of the cylinder cover; a rotary valve mechanism, an inner air valve spring, an outer air valve spring and an upper spring seat are sequentially arranged in the exhaust valve cavity;
(7) manually moving and positioning the hydraulic support, compressing the air inlet and outlet valve springs by the pressure of the hydraulic cylinder, installing the air valve half cone block, and completing the installation of the air valve assembly, and resetting the pressure plate;
(8) and (5) repeatedly executing the step (7) to finish the installation of a plurality of cylinder cover air valve assemblies.
Compared with the prior art, the utility model has the beneficial effects that:
1) The assembly work efficiency is high, the safety degree is high, the phenomenon that the cylinder cover is subjected to rollover and restoration operation for many times by using the travelling crane is avoided, the air valve installation surface of the cylinder cover is inspected according to the requirement, the air valve is effectively installed from the bottom of the cylinder cover, the continuity and controllability of the whole air valve assembly inspection and installation process are guaranteed, and the assembly efficiency is high, and the safety degree is high.
2) The precision is high, and the security is high, has avoided using simple and easy instrument to press the pneumatic valve spring assembly, pressure equipment half cone, accomplishes the installation of pneumatic valve. The damage to the air valve caused by instability of the applied pressure when using a simple tool is avoided. The hydraulic stamping support of this device is accurate to be fixed, fixes hydraulic pressure, guarantees the precision of pneumatic valve subassembly in the in-process compressive force in the vertical direction, and assembly efficiency is high, and the precision is high, and the security is high.
3) The problems of poor continuity, low efficiency, high working strength, high labor consumption, long time consumption, inconvenient operation and potential safety hazard of the existing assembly mode are solved. The utility model simplifies the assembly process of the air inlet and outlet valve and improves the accuracy/assembly efficiency and safety of on-site assembly.
Drawings
FIG. 1 is an assembly view of the high speed diesel engine cylinder head air valve assembly mounting apparatus and cylinder head positioning mounting on the overturning platform
FIG. 2 is a layout of a roll-over table in the present utility model
FIG. 3 is an assembly view of a cylinder head on a roll-over table
FIG. 4 is an assembly view of the cylinder head in a vertical state when the tilting mechanism is rotated 90 DEG
FIG. 5 is an assembly view of the valve disc protective cover opened, the intake valve body and the exhaust valve body installed
FIG. 6 is an assembly view showing the restoration of the cover of the cylinder head after the intake valve and the exhaust valve are installed
FIG. 7 is a schematic diagram of a spring assembly with intake and exhaust valves mounted in sequence in a cylinder head
FIG. 8 is an assembly view of a hydraulic ram support to complete positioning and mounting
FIG. 9 is an assembled view of the platen compression intake and exhaust valve inner and outer spring assemblies
FIG. 10 is a state diagram showing the intake valve and exhaust valve installed
FIG. 11 is a schematic view of the structure of the valve disc when the protective cover is closed
FIG. 12 is a schematic view of the structure of the valve disc when the protective cover is opened
Reference numerals in the drawings:
an I-motor;
II-a turnover mechanism; 2-swinging arms; 3-overturning platform; 4-supporting columns; 5-reducing pins; 6-special-shaped pins; 7-a compressing device; 8-a valve disc protective cover; 18. positioning the bolt holes;
III-a hydraulic stamping mechanism; 16-a hydraulic stamping bracket; 17-a handle pin; the method comprises the steps of carrying out a first treatment on the surface of the 19-a hydraulic cylinder; 20-pressing plates;
1-a cylinder cover body; 9-an air inlet valve body; 10-an exhaust valve body; 11-a rotary valve mechanism; 12-an internal valve spring; 13-an outer air valve spring; 14-upper spring seat; 15-half cone blocks;
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, which should not be construed as limiting the scope of the utility model.
A mounting device of a cylinder cover air valve assembly of a high-speed diesel engine is shown in fig. 1, and comprises a motor, a turnover mechanism and a hydraulic stamping mechanism. The turnover mechanism consists of a swing arm 2, a turnover table 3, a reducing pin 5, a special-shaped pin 6, a support column 4, a pressing device 7 and an air valve disc protecting cover 8.
The turnover mechanism is driven by a motor, and the motor drives the swing arm 2 of the turnover mechanism to realize unidirectional rotation and homing (seen from the direction of the motor) of the turnover table by 90 degrees clockwise. Fig. 1 shows the tilting mechanism in a horizontal position. Fig. 4 is a state in which the turnover mechanism turns clockwise by 90 °. The motor-driven turnover mechanism turns over to replace the operation that an operator uses a travelling crane and a lifting rope to manually and frequently turn over the cylinder cover, so that the process is safe and the efficiency is high.
As shown in fig. 2, the overturning platform 3 has a double-layer frame structure, and in the horizontal position, the upper plane is the supporting surface of the cylinder cover. The base of the reducing pin 5, the special-shaped pin 6, the support column 4 and the pressing device 7 is arranged on the overturning platform 3 in advance according to the positioning size of the cylinder cover. When the cylinder cover is seated, the cylinder cover is accurately positioned, and the position of the cylinder cover does not need to be adjusted any more.
The support column 4 and the pressing block on the upper part of the pressing device 7 support and press the cylinder cover when the overturning platform overturning for 90 degrees in an oriented way.
As shown in fig. 4 and 5, the air valve disc protecting cover 8 is disposed at the lower plane of the overturning table 3, and the air valve disc protecting cover 8 only acts when the overturning table overturns 90 °, and the two states of opening and closing of the air valve disc protecting cover 8 are realized by the switch.
As shown in fig. 11 and 12, the air valve disc protecting cover is a flat plate bracket structure and mainly comprises a protecting plate, a push rod, two groups of telescopic rods, two groups of pull rods, two groups of springs, two groups of adjusting nuts, two groups of pull blocks, 4 shaft position screws and two groups of buckles.
The air valve disc protecting cover is opened and closed by releasing and compressing the hasp and the pressing block on the overturning table.
The opening angle of the air valve disc protective cover is realized by the working length of the telescopic rod.
The rotating process of opening and closing the air valve disc protecting cover is realized by pushing and pulling the push rod.
The air valve disc protecting cover is opened and closed and is mainly realized by the cooperation actions of a pull rod, a spring, an adjusting nut, a pull block, an axial screw and a snap.
As shown in fig. 11, when the valve disc protecting cover is closed, the spring is in a compressed state through the adjustment of the adjusting nut (see fig. 12), the spring applies pressure to the pull block, and the pull block applies pressure to the hasp through the axial screw, so that the hasp is tightly pressed on the pressing block on the overturning table, and the closing is realized.
As shown in fig. 12, when the air valve disc protective cover needs to be opened, two groups of pull rods are manually pulled, the pull rods enable the pull blocks to displace, the pull blocks drive the buckles to rotate around the 2# axial screws through the 1# axial screws, the buckles are separated from the pressing blocks on the overturning table, the two groups of telescopic rods synchronously stretch, when the telescopic rods stretch to the end position, the protective plate forms a 90-degree angle with the overturning table, and the air valve disc protective cover is completely opened.
As shown in fig. 5, when the valve disc protecting cover 8 is opened, a worker can perform a normal inspection operation on the cylinder head and the bottom of the valve, and perform a cylinder head bottom mounting operation on the valve. As shown in fig. 4, after the air valve is installed from the bottom of the cylinder cover, the air valve disc protecting cover is closed, so that the air valve protecting cover is attached to the bottom of the air valve, and the protection of the cylinder cover and the bottom of the air valve is finished immediately; and the operation of double combined air valve inspection, air valve installation and positioning of operators is replaced.
The hydraulic punching mechanism shown in fig. 8 consists of a hydraulic punching bracket 16, a handle pin shaft 17, a hydraulic cylinder 19 and a pressing plate 20.
The hydraulic punching mechanism works when the turnover mechanism is in the horizontal position. The hydraulic punching support 16 can slide on the outer rail and the rail on the overturning platform 3.
The hydraulic stamping support 16 is matched with a positioning bolt hole 18 on the outer edge of the overturning mechanism overturning platform 3 through a handle pin shaft 17 on the hydraulic stamping support to finish positioning.
The hydraulic cylinder on the hydraulic stamping support 16 applies pressure to the pressing plate 20 through hydraulic action, and the cylinder cover air valve assembly is installed through displacement and pressure of the pressing plate 20.
Examples
The method for installing the cylinder cover air valve assembly of the high-speed diesel engine comprises the following steps:
referring to fig. 1, a cylinder cover 1 is lifted above a turnover table 3, and an exhaust outlet of the cylinder cover is in the same direction as a pillar 4 and slowly moves down.
Referring to fig. 3, a 4# stud mounting hole of the cylinder cover penetrates into the reducing pin 5, and an 8# stud mounting hole of the cylinder cover penetrates into the special-shaped pin 6, so that the cylinder cover is positioned and mounted on the upper plane of the overturning platform 3. The strut 4 contacts with the contour areas on two sides of the exhaust outlet of the cylinder cover by a cylindrical surface, and the cylinder cover 1 is tightly pressed on the overturning platform 3 by the pressing device 7 through the ejector rod hole of the cylinder cover 1.
Referring to fig. 4, the motor is started, and the turning mechanism acts to rotate the turning table 3 in one direction by 90 degrees according to a specified direction, so that the cylinder cover 1 is in a vertical state. The valve disc protection cover 8 is in a closed state.
Referring to fig. 5, the valve disc protecting cover 8 is opened, the bottom of the cylinder cover 1 and the valve mounting surface are comprehensively checked, the surfaces of the valve guide sleeve and the valve seat of the cylinder cover 1 are cleaned, and the plug gauge is used for checking the surfaces of the valve guide sleeve and the valve seat of the cylinder cover 1, so that the to-be-mounted state of the valve is ensured to meet the design requirement. An intake valve body 9 and an exhaust valve body 10 are mounted in this order from the bottom of the cylinder head 1.
Referring to fig. 6, the valve disc protecting cover 8 is closed, and the mounting state of the intake valve body 9 and the exhaust valve body 10 is checked and confirmed on the front surface of the cylinder head.
Referring to fig. 7 and 8, the motor is started to actuate the turning mechanism, so that the turning table 3 is turned back by 90 degrees according to a predetermined direction, and the cylinder cover 1 is in a horizontal state again. A rotary valve mechanism 11, an inner valve spring 12, an outer valve spring 13, and an upper spring seat 14 are mounted in this order on the valve bodies 9 and 10 of each cylinder head 1.
Referring to fig. 8, the hydraulic ram support 16 is manually moved, the support is moved above the cylinder head 1, the position of the hydraulic support 16 is adjusted so that the handle pin 17 of the hydraulic support 16 can be inserted into the positioning pin hole 18 on the overturning platform 3, and the handle pin 17 is fixed. The positioning of the hydraulic stamping mechanism is completed.
Referring to fig. 7 and 8, the operator pressurizes the hydraulic cylinder 19 on the hydraulic ram support 16 to move the platen 20 downward by 143mm.
Referring to fig. 9, the inner valve spring 12 and the outer valve spring 13 of the intake valve 9 and the exhaust valve 10 are compressed, leaving room for installation of the half cone 15. In the clearance between the upper spring seat 14 and the valve bodies (9 and 10), a tapered block 15 is installed.
Referring to fig. 10, an operator decompresses a hydraulic cylinder 19 on a hydraulic ram support 16, so that a pressing plate 20 moves upwards to reset, and an inner air valve spring 12 and an outer air valve spring 13 of the compressed air inlet valve 9 and the compressed air outlet valve 10 naturally spring upwards, so that a conical block 15 is clamped in an upper spring seat 14. And (5) completing the installation of the air valve assembly.
The utility model meets the working demands of workshop assembly personnel, meets the safety, effectiveness and high efficiency of workshop assembly, reduces the actual assembly difficulty of workshop site operation workers, reduces the load of workshop travelling crane, releases assembly resources, improves the operation efficiency of workshops and ensures the safety of site assembly.
Claims (3)
1. The device for installing the cylinder cover air valve assembly of the high-speed diesel engine is characterized by comprising a turnover mechanism, a hydraulic stamping mechanism and a motor; the turnover mechanism is driven by the motor to realize unidirectional rotation and homing of the turnover table by 90 degrees clockwise;
the hydraulic stamping mechanism slides on the overturning platform track of the overturning mechanism and works when the overturning platform is in a horizontal position;
the turnover mechanism comprises a turnover table, a swing arm, a reducing pin, a special-shaped pin, a support column, a compacting device and an air valve disc protecting cover;
the overturning platform is of a double-layer frame structure, one plane is provided with the reducing pin, the special-shaped pin, the support column and the pressing device, the overturning platform is used as a supporting surface of a cylinder cover, and the other plane is provided with the air valve disc protecting cover;
swing arms are respectively arranged at two ends of the overturning platform, and a rotating shaft of the motor is connected with the swing arms and is used for driving the swing arms to rotate, so that 90-degree rotation of the overturning platform is realized;
the outer side surface of the overturning platform is provided with a track for the hydraulic stamping mechanism to slide, so that the hydraulic stamping mechanism moves to the position of the cylinder cover to be assembled on the overturning platform;
the outer edge of the overturning platform is provided with a positioning bolt hole for fixing the hydraulic stamping mechanism;
the hydraulic stamping mechanism comprises a hydraulic stamping bracket, a handle pin shaft, a hydraulic cylinder and a pressing plate;
the hydraulic cylinder is fixed on the hydraulic stamping support, a piston rod of the hydraulic cylinder is connected with the pressing plate, and pressure is applied to the pressing plate through hydraulic action to drive downward displacement and pressure of the pressing plate, so that the air valve assembly of the cylinder cover is mounted;
the handle pin shaft is matched with the positioning pin hole on the outer edge of the overturning platform, so that the hydraulic stamping support is fixed on the overturning platform.
2. The mounting device of the high-speed diesel engine cylinder cover air valve assembly according to claim 1, wherein the air valve disc protecting cover is of a flat plate bracket structure and mainly comprises a protecting plate, a push rod, two groups of telescopic rods, two groups of pull rods, two groups of springs, two groups of adjusting nuts, two groups of pull blocks, 4 shaft position screws and two groups of buckles;
the air valve disc protecting cover is opened and closed by disengaging and compressing the hasp and the pressing block on the overturning table;
the opening angle of the air valve disc protective cover is realized by the working length of the telescopic rod;
the rotating process of opening and closing the air valve disc protective cover is realized by pushing and pulling the push rod;
the air valve disc protective cover is in an open-close state and is mainly realized by the cooperation actions of a pull rod, a spring, an adjusting nut, a pull block, an axial screw and a hasp;
when the air valve disc protective cover is closed, the spring is in a compressed state through adjustment of the adjusting nut, the spring applies pressure to the pull block, and the pull block applies pressure to the hasp through the axial screw, so that the hasp is tightly pressed on the pressing block on the overturning platform to realize closing;
when the air valve disc protective cover needs to be opened, the two groups of pull rods are manually pulled, the pull rods enable the pull blocks to displace, the pull blocks drive the buckles to rotate around the 2# axial screws through the 1# axial screws, the buckles are separated from the pressing blocks on the overturning table, the two groups of telescopic rods synchronously stretch, when the telescopic rods stretch to the end position, the protective plate forms an angle of 90 degrees with the overturning table, and the air valve disc protective cover is completely opened.
3. The mounting device of the high-speed diesel engine cylinder cover air valve assembly according to claim 1, wherein the reducing pin, the special-shaped pin, the support column and the pressing device are designed according to the cylinder cover; the reducing pin is arranged at the position of the cylinder cover corresponding to the overturning platform in the 4# stud hole, and the special-shaped pin is arranged at the position of the cylinder cover corresponding to the overturning platform in the 8# stud hole and used for positioning the cylinder cover at the overturning platform; the support column is contacted with the outer contour surface of the exhaust outlet of the cylinder cover, and is used for supporting the cylinder cover when the turnover mechanism is turned over for 90 degrees in one direction; the compressing device is arranged on the upper surface of the air inlet side of the cylinder cover and used for fixing the cylinder cover in the horizontal and vertical states.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320669324.9U CN220575729U (en) | 2023-03-30 | 2023-03-30 | Mounting device for cylinder cover air valve assembly of high-speed diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320669324.9U CN220575729U (en) | 2023-03-30 | 2023-03-30 | Mounting device for cylinder cover air valve assembly of high-speed diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220575729U true CN220575729U (en) | 2024-03-12 |
Family
ID=90108784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320669324.9U Active CN220575729U (en) | 2023-03-30 | 2023-03-30 | Mounting device for cylinder cover air valve assembly of high-speed diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220575729U (en) |
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2023
- 2023-03-30 CN CN202320669324.9U patent/CN220575729U/en active Active
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