CN114961494A - Pneumatic safety door with protection function and automatic opening and closing control function for low-speed machine bearing bush test platform machine - Google Patents
Pneumatic safety door with protection function and automatic opening and closing control function for low-speed machine bearing bush test platform machine Download PDFInfo
- Publication number
- CN114961494A CN114961494A CN202210523370.8A CN202210523370A CN114961494A CN 114961494 A CN114961494 A CN 114961494A CN 202210523370 A CN202210523370 A CN 202210523370A CN 114961494 A CN114961494 A CN 114961494A
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- cylinder
- pneumatic
- pneumatic door
- shaped head
- shaft pin
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- 238000012360 testing method Methods 0.000 title claims abstract description 19
- 238000009434 installation Methods 0.000 claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 239000004677 Nylon Substances 0.000 claims description 7
- 229920001778 nylon Polymers 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 5
- 239000010410 layer Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 5
- 239000010935 stainless steel Substances 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/50—Power-operated mechanisms for wings using fluid-pressure actuators
- E05F15/53—Power-operated mechanisms for wings using fluid-pressure actuators for swinging wings
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/40—Safety devices, e.g. detection of obstructions or end positions
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/16—Sealing arrangements on wings or parts co-operating with the wings
- E06B7/22—Sealing arrangements on wings or parts co-operating with the wings by means of elastic edgings, e.g. elastic rubber tubes; by means of resilient edgings, e.g. felt or plush strips, resilient metal strips
- E06B7/23—Plastic, sponge rubber, or like strips or tubes
Abstract
The invention aims to provide a pneumatic safety door with a protection function and an automatic control opening and closing function for a low-speed machine bearing bush test platform machine, wherein a group of opening and closing mechanisms are respectively installed at two ends of a pneumatic door body, each opening and closing mechanism comprises an in-cylinder hidden beam, an upper box body and an actuating cylinder, the in-cylinder hidden beam is positioned below the pneumatic door body, the upper box body is positioned above the pneumatic door body, the actuating cylinder is positioned in a space formed by the in-cylinder hidden beam and the upper box body, two ends of the actuating cylinder are respectively provided with an output end I-shaped head and a tailstock I-shaped head, two ends of the actuating cylinder are respectively provided with a cylinder output shaft pin and a cylinder tailstock installation shaft pin, and the cylinder output shaft pin and the cylinder tailstock installation shaft pin form a rotating pair by the output end I-shaped head and the tailstock I-shaped head of the actuating cylinder, the pneumatic door body and the in-cylinder. The invention adopts an electromagnetic control compressed air circulation gas path to control the pneumatic cylinder to push open or retract the pneumatic door, and the cylinder is provided with a position sensor for calibrating the opening and closing of the oil cylinder.
Description
Technical Field
The invention relates to a low-speed diesel engine bearing bush testing machine, in particular to a safety protection system of the low-speed diesel engine bearing bush testing machine.
Background
The crank link mechanism in the high-power marine low-speed diesel engine is used as a core moving part in the diesel engine, a spindle bush and a connecting rod bush are the most main rotating friction pairs in the diesel engine during the rotating operation of the diesel engine, and the friction loss of the two bushes accounts for more than 5 percent of the friction loss of the whole diesel engine, so the bearing bush is often listed as one of the critical parts in the low-speed engine. The low-speed machine has a complex structure and a large size structure of a part, and the bearing bush has large influence on the performance of the bearing bush in the aspects of structural design, product processing, part installation and debugging, maintenance and detection and the like, so that equipment generates vibration, local oil film pressure rise, friction rise, lubricating oil flash evaporation and intense flash evaporation impact pressure in the operation process, and the fatigue pitting corrosion and peeling of an alloy layer of the bearing bush are easily caused, and even major accidents are caused. Therefore, a great deal of time and experience are invested in research in the field by all the countries, and the main mode and method are to build a similar load simulation test bed and calculate the performance of the bearing through a simulation calculation software platform, and predict and evaluate the indexes of the running performance, the fatigue damage performance and the like of the bearing.
At present, the protection measure schemes adopted for large-scale rotating systems mainly include: 1. measures such as optimizing the structure of a rotating part, separating high and low rotating speeds, improving the overall strength of the rotating part and the like are taken to improve the strength on the rotating machine body and prevent the broken rotating part from fatigue fracture; 2. the other method is to install protective covers, protective shells, protective nets and other measures at the periphery of the equipment. Because the rotating system is generally supported by the base, and the rotating mechanism rotates between the supporting seats, the general rotating mechanism not only improves the strength of the rotating mechanism, but also is provided with a protective device with enough strength at the periphery. The general protector shell has the functions of sealing and isolating the rotary parts and contacting with the outside in addition to protecting and supporting the rotary parts, and can better protect equipment and personnel.
Disclosure of Invention
The invention aims to provide a pneumatic safety door with a protection function and automatic opening and closing control function for a low-speed machine bearing bush test platform machine, which can play a protection role for a transmission shafting system of an integral platform test machine.
The purpose of the invention is realized as follows:
the invention relates to a pneumatic safety door with a protection function and automatic opening and closing control function for a low-speed machine bearing bush test platform machine, which is characterized in that: the pneumatic door comprises a pneumatic door body, wherein a group of opening and closing mechanisms are installed at two ends of the pneumatic door body, each opening and closing mechanism comprises an inner hidden beam of a cylinder, an upper box body and an actuating cylinder, the inner hidden beam of the cylinder is located below the pneumatic door body, the upper box body is located above the pneumatic door body, the actuating cylinder is located in a space formed by the inner hidden beam of the cylinder and the upper box body, two ends of the actuating cylinder are respectively provided with an output end I-shaped head and a tailstock I-shaped head, two ends of the actuating cylinder are respectively provided with an air cylinder output shaft pin and an air cylinder tailstock installation shaft pin, and the air cylinder output shaft pin and the air cylinder tailstock installation shaft pin are used for assembling a rotating pair formed by the output end I-shaped head and the tailstock I-shaped head of the actuating cylinder, the pneumatic door body and the inner hidden beam of the cylinder into a whole.
The present invention may further comprise:
1. the two sides of the I-shaped head of the output end and the I-shaped head of the tailstock respectively utilize positioning nylon sleeves to clamp the actuating cylinder in the middle of the hidden beam in the cylinder.
2. The front end and the rear end of the actuating cylinder are respectively provided with a pneumatic door opening-in-place electromagnetic sensor and a pneumatic door closing-in-place electromagnetic sensor.
3. And sealing rubber strips are adhered to the periphery of the pneumatic door body.
4. One side of the pneumatic door body is provided with a hinge group.
The invention has the advantages that:
1. because this set of instrument adopts the modularization to make assembly technique, each instrument component part respectively outside assembly completion back, assemble one by one in unified fortune to installation base department, make things convenient for personnel to operate.
2. The set of pneumatic door adopts an electromagnetic control compressed air circulation gas path to control the pneumatic cylinder to push or withdraw the pneumatic door, so that an operator can extremely conveniently enter the system for maintenance, and a position sensor is arranged on the cylinder and used for calibrating the opening and closing of the oil cylinder.
3. When the system integrally operates, the bearing bush test platform machine is calibrated to operate, the automatic cylinder control can control the safe opening level of the cylinder through the enabling signal, the safe operation of the system is ensured, the enabling signal is eliminated after the system is stopped, and the pneumatic door is opened.
4. The system door has the functions of doors, and meanwhile, the door adopts a double-layer stainless steel plate interlayer isolation and resistance net structure, so that large-scale components are prevented from flying off, and the safety of the system is improved.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a side view of the present invention;
FIG. 4 is a view A-A;
FIG. 5 is a perspective view of the present invention;
FIG. 6 is a schematic structural view of an internal concealed cylinder door beam;
FIG. 7 is a schematic view of a thrust cylinder positioning structure;
FIG. 8 is a schematic view of the overall installation position of the pneumatic door pusher;
FIG. 9 is a schematic view of the arrangement of the hidden door beams in the pneumatic door;
FIG. 10 is an assembly view of the pneumatic door inner concealed door beam and the door body;
FIG. 11 is an assembly view of the pneumatic door as a whole with the upper housing.
Detailed Description
The invention will now be described in more detail by way of example with reference to the accompanying drawings in which:
with reference to fig. 1-11, the main object of the present invention is to provide a pneumatic safety door with a protection function for a low-speed machine bearing bush test platform machine, which is capable of automatically controlling opening and closing, through which a set of safety doors capable of automatically opening and closing can be provided for the low-speed machine bearing bush test platform machine, through which a set of automatic doors can be pushed out and opened by a control cylinder, so that maintenance personnel can conveniently enter the system to maintain the equipment; meanwhile, the protective isolation net is filled in the set of pneumatic door main body 1, so that large parts can be prevented from flying off.
The invention relates to a pneumatic safety door with a protection function and an automatic control opening and closing function for a low-speed machine bearing bush test platform machine, which mainly comprises a pneumatic door main body 1, a hinge group 2, an eyenut 3, a left cylinder inner hidden beam 4, a right cylinder inner hidden beam 5, a cylinder output shaft pin A6, a pneumatic door opening-in-place electromagnetic sensor 7, an actuating cylinder 8, a pneumatic door closing-in-place electromagnetic sensor 9 and a cylinder tail seat installation shaft pin B10.
Implicit expression roof beam 4, 5 adopt panel bending forming in the left and right both sides cylinder, and the middle part is cavity, and both sides design has the installation lug, utilizes the bolt to wear out the lug backward and fixes this implicit expression roof beam in last bottom half, and when pneumatic door main part 1 closed, the cylinder just can fall back to the space of implicit expression roof beam in the cylinder in, just so can be better save out the space. Meanwhile, the space in the middle of the inner hidden beam can be used for placing an air pipe of the actuating cylinder, a sensor lead wire and the like, and the space utilization rate of parts is improved.
The hinge group 2 is installed by welding plates to improve the strength of the hinge, meanwhile, the rotating fulcrum is moved upwards, when the thrust of a pneumatic cylinder is applied, the opening torque of the pneumatic door main body can be effectively reduced, the opening compliance of the pneumatic door is improved, the movement track of the fulcrum when the pneumatic door is opened can be improved, the lower edge of the pneumatic door main body can be effectively avoided from the boundary of a box body, and the pneumatic door 1 is prevented from interfering with the box body.
The cylinder output shaft pin A6 and the cylinder tail seat mounting shaft pin B are mainly characterized in that an output end I-shaped head and a tail seat I-shaped head of an actuating cylinder 8, a pneumatic door body 1 and inner hidden beams 4 and 5 form two groups of revolute pairs to be assembled into a whole, and the actuating cylinder is clamped between the inner hidden beams by utilizing positioning nylon sleeves on two sides of the I-shaped head respectively, so that the actuating cylinder is ensured not to interfere with any part when the cylinder is pushed out.
Position detection sensors are respectively installed at the front end and the rear end of the actuating cylinder 8, and whether the pneumatic door is in an opening state or a closing state can be calibrated according to the two sensors.
A circle of sealing rubber strips are pasted on the periphery of the pneumatic door, the sealing performance of the interior of the system after the pneumatic door is closed can be improved, meanwhile, a buffer layer space can be provided for the pneumatic door when the pneumatic door is closed in a pneumatic sitting mode, and the pneumatic cylinder 8 is protected to be stably seated.
The system mainly adopts a modular design method, and the assembly also comprises the steps of respectively assembling the small modules, and assembling the small modules with the upper box body after the small modules are assembled. 1. Positioning the cylinder tail seat at the middle positions of the hidden beams 4 and 5 by using a positioning nylon sleeve positioning block according to a preset position, assembling the positioning block, the cylinder tail seat and the hidden beams into a hidden beam module by using a cylinder tail seat mounting shaft pin B, wherein the assembled structure is shown in figures 2, 3 and 4; 2. 2 assembled inner hidden door beams are arranged on the lower box body according to preset positions, the position of the cylinder is adjusted, and the assembling structure is shown in fig. 9; 3. the pneumatic door body is integrally hoisted to the upper box body installation groove position, the hinge group 2 is installed at a preset position on the upper box body, and the assembly structure after the door body is installed is shown in figure 10. 4. After a door body is opened by hoisting a lifting ring nut 3 by using a crane, an I-shaped joint at the head of the air cylinder is positioned in the middle of the installation groove by using a positioning nylon block, then the I-shaped joint, the positioning nylon block and a starting door are connected into an assembly body by using an air cylinder output shaft pin A, then all air inlet and outlet pipes of the air cylinder and the electronic control multi-way valve are connected according to the integral air path control requirement, finally, the integral pneumatic door is seated and well embedded with a groove position of a box body on the equipment, the assembly is completed, and the final assembly structure is as shown in figure 11.
The device mainly drives the compressed air circulation direction through the electromagnetic valve to control whether the compressed air enters a rod cavity or a rodless cavity of the piston rod and control whether the piston rod is pushed out or retracted, thereby controlling the opening or closing of the pneumatic door.
After the pneumatic door is closed, the pneumatic door and the wall bodies of the box body on the periphery form a closed space, all transmission systems of the test platform machine can be closed in the space, and flying parts are blocked when the transmission systems have flying dangers and the like, so that the safety of peripheral personnel is protected.
The pneumatic door main body 1 is composed of 2 layers of stainless steel sandwich structures, an upper stainless steel plate and a lower stainless steel plate mainly block small parts which are rapidly flied, and the flied parts are integrally blocked back into the box body by means of the hardness of the steel plates; when a large part flies off, the part firstly crushes the inner layer steel plate, then a blocking separation net is added between the two layers of steel plates, the separation net utilizes fibrous tissues to wind the flying part to absorb most of the flying force of the part, after the part impacts the second layer of stainless steel plate, the blocking separation net winds the flying part to independently block the flying part from flying out of the machine body, and the safety of a system and personnel can be ensured when equipment flies or the part flies off at a high rotating speed through the set of structure.
Firstly, an actuating cylinder 8 is installed in a left cylinder hidden beam and a right cylinder hidden beam 4 and 5 through a cylinder tailstock installation shaft pin B10, the installation shaft pins are locked by locking pins, and then the position of the cylinder is positioned in the middle of the cylinder hidden beam by utilizing a positioning shaft sleeve; secondly, the hinge group 2 is connected with the pneumatic door main body 1 in place through bolts, and the position of the hinge is adjusted to be freely opened and closed; and finally, horizontally hoisting the pneumatic door main body module 1 assembled with the hinge to an upper box body installation groove position through a hoisting ring 3, installing a hinge fixed end on a machine body through a bolt, hoisting the pneumatic door to a specified position through a hoisting ring at the front end of the pneumatic door by a crane, pulling the output end of the actuating cylinder 8 out of the inner hidden beam, locking the pneumatic door main body module and the pneumatic door main body 1 by using a cylinder output shaft pin A, and positioning the cylinder output head at an intermediate position corresponding to the tailstock by using a nylon positioning block on the shaft pin to complete system assembly.
Claims (5)
1. The utility model provides a pneumatic emergency exit that is used for low-speed quick-witted axle bush test platform machine to have safeguard function automatic control switching, characterized by: the pneumatic door comprises a pneumatic door body, wherein a group of opening and closing mechanisms are installed at two ends of the pneumatic door body, each opening and closing mechanism comprises an inner hidden beam of a cylinder, an upper box body and an actuating cylinder, the inner hidden beam of the cylinder is located below the pneumatic door body, the upper box body is located above the pneumatic door body, the actuating cylinder is located in a space formed by the inner hidden beam of the cylinder and the upper box body, two ends of the actuating cylinder are respectively provided with an output end I-shaped head and a tailstock I-shaped head, two ends of the actuating cylinder are respectively provided with an air cylinder output shaft pin and an air cylinder tailstock installation shaft pin, and the air cylinder output shaft pin and the air cylinder tailstock installation shaft pin are used for assembling a rotating pair formed by the output end I-shaped head and the tailstock I-shaped head of the actuating cylinder, the pneumatic door body and the inner hidden beam of the cylinder into a whole.
2. The pneumatic safety door with the protection function and the automatic control function for the low-speed machine bearing bush test platform machine is characterized in that: the two sides of the I-shaped head of the output end and the I-shaped head of the tail seat respectively utilize positioning nylon sleeves to clamp the actuating cylinder in the middle of the hidden beam in the cylinder.
3. The pneumatic safety door with the protection function and the automatic control function for the low-speed machine bearing bush test platform machine is characterized in that: the front end and the rear end of the actuating cylinder are respectively provided with a pneumatic door opening-in-place electromagnetic sensor and a pneumatic door closing-in-place electromagnetic sensor.
4. The pneumatic safety door with the protection function and the automatic control on-off function for the low-speed machine bearing bush test platform machine as claimed in claim 1, is characterized in that: and sealing rubber strips are adhered to the periphery of the pneumatic door body.
5. The pneumatic safety door with the protection function and the automatic control function for the low-speed machine bearing bush test platform machine is characterized in that: one side of the pneumatic door body is provided with a hinge group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210523370.8A CN114961494A (en) | 2022-05-13 | 2022-05-13 | Pneumatic safety door with protection function and automatic opening and closing control function for low-speed machine bearing bush test platform machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210523370.8A CN114961494A (en) | 2022-05-13 | 2022-05-13 | Pneumatic safety door with protection function and automatic opening and closing control function for low-speed machine bearing bush test platform machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114961494A true CN114961494A (en) | 2022-08-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210523370.8A Pending CN114961494A (en) | 2022-05-13 | 2022-05-13 | Pneumatic safety door with protection function and automatic opening and closing control function for low-speed machine bearing bush test platform machine |
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| Country | Link |
|---|---|
| CN (1) | CN114961494A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100132160A1 (en) * | 2008-12-01 | 2010-06-03 | Hyundai Motor Company | Hidden Type Hood Gas Lifter Device |
| CN102996003A (en) * | 2012-11-28 | 2013-03-27 | 北京卫星环境工程研究所 | Gate running mechanism for spacecraft thermal test vacuum container |
| JP2014073787A (en) * | 2012-10-05 | 2014-04-24 | Japan Marine United Corp | Shield cover switchgear, and vessel |
| CN208502513U (en) * | 2018-05-31 | 2019-02-15 | 宁波海天精工股份有限公司 | A kind of automatic speed regulating structure of machining center pneumatic door |
| CN209838052U (en) * | 2019-01-31 | 2019-12-24 | 郑州洪华建筑科技有限公司 | Hidden pneumatic vertical window |
| CN113279675A (en) * | 2021-05-17 | 2021-08-20 | 西安阎良国安人防工程有限公司 | Steel structure civil air defense door and installation method thereof |
-
2022
- 2022-05-13 CN CN202210523370.8A patent/CN114961494A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100132160A1 (en) * | 2008-12-01 | 2010-06-03 | Hyundai Motor Company | Hidden Type Hood Gas Lifter Device |
| JP2014073787A (en) * | 2012-10-05 | 2014-04-24 | Japan Marine United Corp | Shield cover switchgear, and vessel |
| CN102996003A (en) * | 2012-11-28 | 2013-03-27 | 北京卫星环境工程研究所 | Gate running mechanism for spacecraft thermal test vacuum container |
| CN208502513U (en) * | 2018-05-31 | 2019-02-15 | 宁波海天精工股份有限公司 | A kind of automatic speed regulating structure of machining center pneumatic door |
| CN209838052U (en) * | 2019-01-31 | 2019-12-24 | 郑州洪华建筑科技有限公司 | Hidden pneumatic vertical window |
| CN113279675A (en) * | 2021-05-17 | 2021-08-20 | 西安阎良国安人防工程有限公司 | Steel structure civil air defense door and installation method thereof |
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