CN210939064U - Handheld frequency conversion pneumatic pin pulling device - Google Patents
Handheld frequency conversion pneumatic pin pulling device Download PDFInfo
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- CN210939064U CN210939064U CN201921491250.4U CN201921491250U CN210939064U CN 210939064 U CN210939064 U CN 210939064U CN 201921491250 U CN201921491250 U CN 201921491250U CN 210939064 U CN210939064 U CN 210939064U
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Abstract
The utility model relates to the field of engine maintenance devices, in particular to a hand-held variable-frequency pneumatic pin pulling device, which comprises a main shell and a pulling head shell in threaded connection with the front end of the main shell, wherein a pulling hammer is arranged in the main shell, the pulling hammer is movably connected with the main shell, one end of the pulling hammer extends into the pulling head shell, a sleeve connected with the pulling hammer is arranged in the pulling head shell, one end of the sleeve is in threaded connection with a pulling head, and the head end of the pulling head is movably connected with the pulling head shell and extends out of the pulling head shell; a spring A is arranged between the sleeve and the main shell, and a spring B is arranged between the tail end of the pulling hammer and the main shell; the tail part of the main shell is provided with an air inlet port which is connected with a pneumatic mechanism through a conduit. The utility model has the advantages that utilize the compressed gas of singlechip, air-vent valve output adjustable frequency and pressure, realize the effective control to pulling out round pin in-process frequency, stroke and dynamics to improve pin and work piece decomposition efficiency and quality.
Description
Technical Field
The utility model relates to an engine maintenance device field, especially a pneumatic pin pulling device of hand-held type frequency conversion.
Background
Because most pneumatic pin pulling devices at present are only simple manual pickers and pullers, the pneumatic pin pulling device has the following patent numbers: CN208358690U, a chinese patent, discloses a pneumatic pin pulling mechanism, which proposes a mechanism for pulling out a pin by pushing an impact hammer through air flow; the patent numbers are: chinese patent CN202010991 discloses a pneumatic pin puller, which provides a mechanism for manually controlling an impact hammer to pull out a pin by controlling a device air inlet through a handle at a fixed station, and the like. In addition, in the practical application process, the thin-wall parts are required to be detached, such as parts of an aircraft engine. The pneumatic puller only completes a pin pulling process, cannot control pin pulling frequency, pin pulling force and pin pulling stroke, is large in size and inconvenient to operate, and therefore the maintenance requirement of an aero-engine cannot be met.
At present, in the pin pulling work in the engine repairing process, a worker mainly utilizes a special prying tool and a special pulling tool, the efficiency is low, the experience requirement on the worker is higher, the force of the devices is not controllable in the process of disassembling the pin in the engine part of the airplane, and the damage to the engine part is easily caused in the using process and is not allowed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's shortcoming, provide a hand-held type, and frequency, impact stroke, dynamics size adjustable pneumatic pin pulling device, the dismantlement operation of pin in the specially adapted aeroengine maintenance field.
The purpose of the utility model is realized through the following technical scheme: a hand-held variable-frequency pneumatic pin pulling device comprises a main shell and a pulling head shell in threaded connection with the front end of the main shell, wherein a pulling hammer is arranged inside the main shell, the pulling hammer is movably connected with the main shell, one end of the pulling hammer extends into the pulling head shell, a sleeve connected with the pulling hammer is arranged inside the pulling head shell, one end of the sleeve is in threaded connection with a pulling head, and the head end of the pulling head is movably connected with the pulling head shell and extends out of the pulling head shell;
a spring A is arranged between the sleeve and the main shell, and a spring B is arranged between the tail end of the pulling hammer and the main shell;
the tail of the main shell body is provided with an air inlet port, an air pressure cavity is arranged in the main shell body, the air pressure cavity is connected with the air inlet port through an air passage, and the air inlet port is connected with a pneumatic mechanism through a guide pipe.
Specifically, one end of the pulling hammer is provided with a threaded hole, a limiting bolt is connected in the threaded hole in a threaded mode, the limiting bolt is used for limiting the movable position of the sleeve, and the sleeve is movably connected with the pulling hammer.
Specifically, one end of the spring a is sleeved outside the sleeve and fixedly connected with the sleeve, and the other end of the spring a is fixed at the outer side of the main casing.
Specifically, one end of the spring B is fixed on the pulling hammer, and the other end of the spring B is fixed on the main shell.
Specifically, the pneumatic mechanism comprises a pressure stabilizing air source and a two-position three-way electromagnetic valve connected with the pressure stabilizing air source, and the two-position three-way electromagnetic valve is connected with an air inlet port through a conduit.
Specifically, the pressure stabilizing air source is connected with the two-position three-way electromagnetic valve through an air inlet guide pipe, and the air inlet guide pipe is provided with a pressure regulating valve.
The single-chip microcomputer control circuit comprises a single-chip microcomputer control module, wherein the single-chip microcomputer control module is electrically connected with the two-position three-way electromagnetic valve and used for controlling the on-off of the two-position three-way electromagnetic valve, and a frequency adjusting button is arranged on the single-chip microcomputer control module, so that the single-chip microcomputer control module controls the two-position three-way electromagnetic valve according to the on-off frequency of a set frequency signal control circuit.
Specifically, a rubber pad is arranged in the main shell at a position opposite to the pulling hammer.
The utility model has the advantages of it is following: the utility model discloses utilize the compressed gas of singlechip, air-vent valve output adjustable frequency and pressure to and utilize the helicitic texture on the shell of pulling out the head and the main casing body, realize the effective control to pulling out round pin in-process frequency, stroke and dynamics, thereby when improving pin and work piece decomposition efficiency and quality, realize the zero damage to engine spare part.
The valve core of the two-position three-way electromagnetic valve is controlled to reciprocate by the adjustable control signal output by the single chip microcomputer, so that the control device can output gas with controllable frequency, and the gas with cyclic change acts on the pulling hammer, so that the pulling head can automatically pull back the pin.
The pressure of the output gas is adjusted through the pressure regulating valve, so that the withdrawal force degree in the working process is changed.
The effective control of the back drawing stroke is realized by finely adjusting the thread structures of the drawing head shell and the main shell in the working process; the looseness prevention of the mechanism is realized by arranging a plurality of wave-shaped gaskets at the threaded connection part of the shifting head shell and the main shell.
After ventilation, the pulling hammer moves rightwards for a certain distance and then drives the pulling head to move rightwards, through reasonable design of the quality of the pulling head and the pulling hammer and the mode that the tail end uses a rubber pad, the vibration impact transmitted to the shell in the process of knocking the pulling hammer can be reduced, and therefore the service life of the handheld variable-frequency pneumatic pin pulling device is prolonged.
Drawings
FIG. 1 is a schematic view of the operation structure of the present invention during ventilation;
FIG. 2 is a schematic view of the working structure of the present invention when the gas supply is cut off;
in the figure: 1-pulling head, 2-pulling head shell, 3-pulling hammer, 4-sleeve, 5-spring A, 6-main shell, 7-spring B, 8-air inlet port, 9-conduit, 10-pressure stabilizing air source, 11-pressure regulating valve, 12-air inlet conduit, 13-two-position three-way electromagnetic valve, 14-power supply, 15-single chip microcomputer control module, 16-control switch, 17-limit bolt, 130-valve body, 131-spring C, 132-first air valve hole, 133-second air valve hole, 134-third air valve hole, 135-valve rod, 136-coil, 137-iron core and 151-frequency regulating button.
Detailed Description
The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following description.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1-2, a hand-held variable-frequency pneumatic pin pulling device comprises a main housing 6 and a pin pulling housing 2 in threaded connection with the front end of the main housing 6, wherein the pin pulling housing 2 is in threaded connection with the main housing 6, the thread feeding is finely adjusted to effectively control the pulling stroke of a pin pulling 1, the anti-loosening of a mechanism is realized by arranging a plurality of waveform gaskets at the threaded connection part of the pin pulling housing 2 and the main housing 6, a pulling hammer 3 is arranged inside the main housing 6, the pulling hammer 3 is movably connected with the main housing 6, one end of the pulling hammer extends into the pin pulling housing 2, a sleeve 4 connected with the pulling hammer 3 is arranged inside the pin pulling housing 2, one end of the sleeve 4 is in threaded connection with the pin pulling 1, and the head end of the pin pulling 1 is movably connected with the pin pulling housing 2 and extends to the outside of the pin pulling housing;
a spring A5 is arranged between the sleeve 4 and the main shell 6, and a spring B7 is arranged between the tail end of the pulling hammer 3 and the main shell 6;
the afterbody of main casing body 6 be provided with air inlet port 8, be provided with the atmospheric pressure cavity in the main casing body 6, the atmospheric pressure cavity passes through the air flue and connects air inlet port 8, air inlet port 8 passes through pipe 9 and connects pneumatic mechanism.
Further, one end of the pulling hammer 3 is provided with a threaded hole, a limiting bolt 17 is connected to the threaded hole in a threaded manner, the limiting bolt 17 is used for limiting the movable position of the sleeve 4, and the sleeve 4 is movably connected with the pulling hammer 3.
Furthermore, one end of the spring a5 is sleeved outside the sleeve 4 and is fixedly connected with the sleeve 4, and the other end of the spring a5 is fixed at the outer side of the main housing 6.
Further, one end of the spring B7 is fixed on the hammer 3, and the other end is fixed on the main housing 6.
Further, the pneumatic mechanism comprises a pressure stabilizing air source 10 and a two-position three-way electromagnetic valve 13 connected with the pressure stabilizing air source 10, and the two-position three-way electromagnetic valve 13 is connected with the air inlet port 8 through a conduit 9.
Further, the pressure stabilizing air source 10 is connected with the two-position three-way electromagnetic valve 13 through an air inlet guide pipe 12, the air inlet guide pipe 12 is provided with a pressure regulating valve 11, and when the working frequency and the working stroke of the device are stable, the pressure regulating valve 11 can control the withdrawal force degree according to the operation requirement.
Further, the control circuit further comprises a single chip microcomputer control module 15, the single chip microcomputer control module 15 is electrically connected with the two-position three-way electromagnetic valve 13 and used for controlling the on-off of the two-position three-way electromagnetic valve 13, and a frequency adjusting button 151 is arranged on the single chip microcomputer control module 15, so that the single chip microcomputer control module 15 controls the two-position three-way electromagnetic valve 13 according to the on-off frequency of the set frequency signal control circuit.
Furthermore, the rubber pad is arranged in the main shell 6 at a position opposite to the pulling hammer 3, and through the rubber pad, the vibration impact transmitted to the shell in the process of knocking by the pulling hammer can be reduced, so that the service life of the handheld variable-frequency pneumatic pin pulling device is prolonged.
The working process of the utility model is as follows: the pressure-stabilizing gas source 10 provides gas with set pressure for the whole device, a control switch 16 connected with the single chip microcomputer control module 15 is closed, a power supply 14 powers on the single chip microcomputer control module 15, the on-off frequency of the circuit is controlled according to a set frequency signal, as shown in figure 1, when the two-position three-way electromagnetic valve 13 is energized, the coil 136 generates magnetic force on the iron core 137, the spring C131 is stretched, the iron core 137 drives the valve rod 135 to slide rightwards in the axial direction in the valve body 130, at this time, the first air valve hole 132 is closed, the second air valve hole 133 is communicated with the third air valve hole 134, the second air valve hole 133 supplies air to the air pressure in the main shell 6 through the guide pipe 9, the gas provided by the conduit 9 pushes the pulling hammer 3 to move rightwards in the main shell 6, the head of the pulling hammer 3 drives the pulling head 1 fixedly connected with the sleeve 4 to move rightwards, the pulling head 1 drives the pin to move rightwards, and meanwhile, the spring A5 and the spring A7 are compressed; as shown in fig. 2, when the two-position three-way solenoid valve 13 is de-energized, the spring C131 in the stretched state is reset, and drives the valve rod 135 to slide leftward in the valve body 130 along the axial direction, at this time, the first air valve hole 133 is closed, the second air valve hole 132 is communicated with the third air valve hole 134, and the air is directly communicated with the outside, at this time, the spring B7 is reset, and pushes the pulling hammer 3 to slide leftward in the main housing 6, and at the same time, the pulling hammer resets with the compression spring a5, and pushes the pulling head 1 fixedly connected with the sleeve 4 to slide leftward.
The single chip microcomputer control module 15 is provided with a frequency adjusting button 151, so that the single chip microcomputer control module 15 controls the two-position three-way electromagnetic valve 13 according to the on-off frequency of the set frequency signal control circuit, the ventilation frequency of the pulling mechanism is controlled, and the pulling frequency is finally controlled.
The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any way. The technical solutions of the present invention can be used by anyone skilled in the art to make many possible variations and modifications to the technical solution of the present invention, or to modify equivalent embodiments with equivalent variations, without departing from the scope of the technical solution of the present invention. Therefore, any modification, equivalent change and modification of the above embodiments according to the present invention are all within the protection scope of the present invention.
Claims (8)
1. The utility model provides a pneumatic pin pulling device of hand-held type frequency conversion which characterized in that: the head pulling device comprises a main shell (6) and a head pulling shell (2) in threaded connection with the front end of the main shell (6), wherein a pulling hammer (3) is arranged inside the main shell (6), the pulling hammer (3) is movably connected with the main shell (6), one end of the pulling hammer extends into the head pulling shell (2), a sleeve (4) connected with the pulling hammer (3) is arranged inside the head pulling shell (2), one end of the sleeve (4) is in threaded connection with a pulling head (1), and the head end of the pulling head (1) is movably connected with the head pulling shell (2) and extends to the outside of the head pulling shell (2);
a spring A (5) is arranged between the sleeve (4) and the main shell (6), and a spring B (7) is arranged between the tail end of the pulling hammer (3) and the main shell (6);
the tail of the main shell body (6) is provided with an air inlet port (8), an air pressure cavity is arranged in the main shell body (6), the air pressure cavity is connected with the air inlet port (8) through an air passage, and the air inlet port (8) is connected with a pneumatic mechanism through a guide pipe (9).
2. The hand-held variable frequency pneumatic pin pulling device according to claim 1, wherein: one end of the pulling hammer (3) is provided with a threaded hole, a limiting bolt (17) is connected with the threaded hole in an internal thread mode, the limiting bolt (17) is used for limiting the movable position of the sleeve (4), and the sleeve (4) is movably connected with the pulling hammer (3).
3. The hand-held variable frequency pneumatic pin pulling device according to claim 1, wherein: one end of the spring A (5) is sleeved outside the sleeve (4) and is fixedly connected with the sleeve (4), and the other end of the spring A (5) is fixed at the outer side part of the main shell (6).
4. The hand-held variable frequency pneumatic pin pulling device according to claim 1, wherein: one end of the spring B (7) is fixed on the pulling hammer (3), and the other end is fixed on the main shell (6).
5. The hand-held variable frequency pneumatic pin pulling device according to claim 1, wherein: the pneumatic mechanism comprises a pressure stabilizing air source (10) and a two-position three-way electromagnetic valve (13) connected with the pressure stabilizing air source (10), wherein the two-position three-way electromagnetic valve (13) is connected with an air inlet port (8) through a guide pipe (9).
6. The hand-held variable frequency pneumatic pin pulling device according to claim 5, wherein: the pressure stabilizing air source (10) is connected with the two-position three-way electromagnetic valve (13) through an air inlet guide pipe (12), and the air inlet guide pipe (12) is provided with a pressure regulating valve (11).
7. The hand-held variable frequency pneumatic pin pulling device according to claim 5, wherein: the single-chip microcomputer control circuit is characterized by further comprising a single-chip microcomputer control module (15), wherein the single-chip microcomputer control module (15) is electrically connected with the two-position three-way electromagnetic valve (13) and used for controlling the on-off of the two-position three-way electromagnetic valve (13), and a frequency adjusting button (151) is arranged on the single-chip microcomputer control module (15) to enable the single-chip microcomputer control module (15) to control the two-position three-way electromagnetic valve (13) according to the on-off frequency.
8. The hand-held variable frequency pneumatic pin pulling device according to claim 5, wherein: a rubber pad is arranged in the main shell (6) at a position opposite to the drawing hammer (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921491250.4U CN210939064U (en) | 2019-09-09 | 2019-09-09 | Handheld frequency conversion pneumatic pin pulling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921491250.4U CN210939064U (en) | 2019-09-09 | 2019-09-09 | Handheld frequency conversion pneumatic pin pulling device |
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| Publication Number | Publication Date |
|---|---|
| CN210939064U true CN210939064U (en) | 2020-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921491250.4U Active CN210939064U (en) | 2019-09-09 | 2019-09-09 | Handheld frequency conversion pneumatic pin pulling device |
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| CN (1) | CN210939064U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112548939A (en) * | 2020-12-12 | 2021-03-26 | 枣庄海立美达模具有限公司 | Pneumatic impact pin puller |
-
2019
- 2019-09-09 CN CN201921491250.4U patent/CN210939064U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112548939A (en) * | 2020-12-12 | 2021-03-26 | 枣庄海立美达模具有限公司 | Pneumatic impact pin puller |
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