CN110977903B - Spray pipe storage and quick replacement device - Google Patents

Spray pipe storage and quick replacement device Download PDF

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Publication number
CN110977903B
CN110977903B CN201911097148.0A CN201911097148A CN110977903B CN 110977903 B CN110977903 B CN 110977903B CN 201911097148 A CN201911097148 A CN 201911097148A CN 110977903 B CN110977903 B CN 110977903B
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China
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spray pipe
clamping
cylinder
pipe box
clamping cylinder
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CN110977903A (en
Inventor
王帅
张晨凯
金佳林
谢峰
李广良
魏忠武
董金刚
赵星宇
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China Academy of Aerospace Aerodynamics CAAA
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China Academy of Aerospace Aerodynamics CAAA
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25HWORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H3/00Storage means or arrangements for workshops facilitating access to, or handling of, work tools or instruments

Abstract

The invention relates to a spray pipe storage and quick replacement device, and belongs to the technical field of test aerodynamics. The device mainly comprises a wheel disc, a pipe spraying box, a speed reducer, a motor, a support, a pin shaft, a clamping mechanism and a middle shaft. The support is placed on the ground, the middle shaft is connected to the support through a revolute pair, and the middle shaft penetrates through the wheel disc and is fixedly connected with the wheel disc; the spray pipe box is connected to the wheel disc through a pin shaft and can rotate around the pin shaft; the clamping mechanism is placed on the ground and provides clamping force for the spray pipe box; the motor is connected with the middle shaft through the speed reducer, and the middle shaft drives the wheel disc to rotate so as to drive the spray pipe box to rotate along the axis of the middle shaft. The invention creatively arranges the spray pipe boxes around the circumference of the middle shaft, and changes the spray pipe boxes in a rotating way, thereby realizing the quick change of the spray pipe boxes, easily realizing the automation of the change of the spray pipe boxes, improving the production efficiency and saving the transverse space.

Description

Spray pipe storage and quick replacement device
Technical Field
The invention relates to a device for storing and quickly replacing a spray pipe in wind tunnel equipment, belonging to the field of test aerodynamics.
Background
In a cross-supersonic wind tunnel, a spray pipe is an important component for ensuring that a test section obtains a uniform flow field under a designed Mach number, and the performance of the spray pipe has an important influence on an aerodynamic test result. At present, the storage and replacement devices of the fixed-wall spray pipe mainly comprise two types, one type is that a spray pipe block is separated from a spray pipe box, the spray pipe box is arranged on a trolley, the trolley moves along a track vertical to the axis of the wind tunnel, different Mach numbers are realized by replacing different spray pipe blocks, and the mode is mainly adopted in the wind tunnel with a small section of a test section. The other mode is that the spray pipe blocks and the spray pipe boxes are fixed and arranged on the frame trolley, each Mach number spray pipe is provided with the frame trolley, the frame trolley moves along a track vertical to the axis of the wind tunnel and can move to the spray pipes to be stored in a unified mode, and the mode is mainly used for the wind tunnel with the large section of the test section. The replacement mode of the spray pipe type surface block is complex, the spray pipe type surface block needs to be disassembled and assembled when the Mach number is changed at each time, and the disassembly and the assembly are mainly completed by manpower; the latter replacement method requires moving the nozzle between the nozzles to the test position, and each replacement requires installation and repositioning, and is also mainly completed by manpower, and the overall efficiency is low. The storage and the replacement of the existing spray pipes in two forms are realized by manpower, the efficiency is low, the positioning is inaccurate, and the automatic operation of wind tunnel equipment is not facilitated.
Nowadays, the wind tunnel test is increasingly heavy, the improvement of the wind tunnel test efficiency is urgent, the automation of the wind tunnel equipment is a necessary way for improving the wind tunnel test efficiency, and therefore, the design of a device capable of automatically replacing and positioning a spray pipe for storage and fast replacement becomes a key problem in the present stage.
Disclosure of Invention
The technical problem solved by the invention is as follows: aiming at the defect of low replacement efficiency of the existing spray pipe, the device for quickly replacing the spray pipe is designed, and support is provided for realizing automatic replacement of the spray pipe.
The technical scheme of the invention is as follows: the utility model provides a spray tube is deposited and quick replacement device, the device includes rim plate, spray tube case reduction gear, motor, support, axis, wherein:
the wheel disc comprises a first rotating disc and a second rotating disc, the central axes of the first rotating disc and the second rotating disc are in the same straight line with the central axis of the center shaft, and through holes are formed in the centers of the first rotating disc and the second rotating disc and fixedly connected with the center shaft;
the middle shaft is connected to the bracket through a revolute pair and can rotate around a rotating shaft of the revolute pair, and the middle shaft penetrates through the first wheel disc and the second wheel disc and is fixedly connected with the wheel discs; the motor is connected with the middle shaft through the speed reducer and drives the wheel disc to move through the middle shaft;
the end part of one end of the spray pipe box is connected to the first wheel disc through a pin shaft by using a revolute pair, the end part of the other end of the spray pipe box is connected to the second rotary disc through a pin shaft by using a revolute pair, the spray pipe box can rotate around the pin shaft, when the wheel disc rotates to drive the spray pipe box to rotate along the axis of the middle shaft, the spray pipe box rotates relative to the wheel disc under the action of gravity, and the bottom of the spray pipe box is parallel.
The first rotating disc and the second rotating disc are circular or polygonal in shape.
More than two spray pipe boxes are arranged between the first rotary table and the second rotary table in parallel.
The different nozzle boxes have different Mach numbers.
The spray pipe storage and quick replacement device further comprises a clamping device, wherein the clamping device is used for providing clamping force for the spray pipe box, ensuring that the spray pipe box is accurate in place, and providing the spray pipe with clamping force required in the wind tunnel operation process.
The clamping device comprises a first clamping cylinder, a second clamping cylinder, a third clamping cylinder, a fourth clamping cylinder, a clamping platform, a first lifting cylinder, a second lifting cylinder, a third lifting cylinder, a fourth lifting cylinder and a base;
the first lifting cylinder, the second lifting cylinder, the third lifting cylinder and the fourth lifting cylinder are arranged on the base and support four corners of the clamping platform;
the first clamping cylinder, the second clamping cylinder, the third clamping cylinder and the fourth clamping cylinder are fixedly installed on the clamping platform, wherein the first clamping cylinder and the third clamping cylinder are installed oppositely in a face-to-face mode and used for clamping two sides, perpendicular to the ground, of one end of the spray pipe box, and the second clamping cylinder and the fourth clamping cylinder are installed oppositely in a face-to-face mode and used for clamping two sides, perpendicular to the ground, of the other end of the spray pipe box.
The clamping device can be arranged into 1 set or 2 sets according to the size of the spray pipe.
The clamping cylinder and the lifting cylinder are hydraulic cylinders, pneumatic cylinders or electric cylinders.
The device for storing the spray pipe and rapidly replacing the spray pipe further comprises a speed reducer, wherein the wheel disc box is fixedly connected with the middle shaft and is connected with the motor through the speed reducer, the motor drives the speed reducer to rotate, the speed reducer drives the middle shaft to rotate, and the middle shaft drives the wheel disc to rotate.
The support is arranged on the ground, and the support spans across the wind tunnel test equipment.
Compared with the prior art, the invention has the beneficial effects that:
(1) the spray pipe storage mode designed by the invention fully utilizes the vertical space, saves the transverse size and is suitable for storing the spray pipes of the wind tunnel test equipment with limited space size.
(2) The spray pipe replacing device designed by the invention can realize quick replacement of the spray pipe, has a simple control method, and is easy to realize automation of spray pipe replacement.
(3) The clamping device designed by the invention is simple and reliable, the control method is simple, and the automation of the clamping device is easy to realize.
(4) According to the invention, the spray pipe box is connected with the wheel disc through the pin shaft, so that the lower bottom surface of the spray pipe box can be always kept horizontal with the ground under the action of gravity when the wheel disc rotates, and the accurate position of the spray pipe box is ensured.
Drawings
FIG. 1 is a general view of a nozzle storage and exchange apparatus according to an embodiment of the present invention;
FIG. 2 is a front view of a clamping assembly according to an embodiment of the present invention;
FIG. 3 is a diagram of the clamping device and nozzle box support relationship in accordance with an embodiment of the present invention.
The various labels in fig. 1 are: the device comprises a wheel disc 1, a spray pipe box 2, a speed reducer 3, a motor 4, a support 5, a pin shaft 6, a clamping device 7 and a middle shaft 8.
The various labels in fig. 2 are: 9 is a clamping cylinder (comprising a first clamping cylinder (9-1), a second clamping cylinder (9-2), a third clamping cylinder (9-3) and a fourth clamping cylinder (9-4)), 10 is a clamping platform, 11 is a lifting cylinder (comprising a first lifting cylinder (11-1), a second lifting cylinder (11-2), a third lifting cylinder (11-3) and a fourth lifting cylinder (11-4)), and 12 is a base.
Detailed Description
Specific embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
As shown in fig. 1, the present invention includes a nozzle storage and quick change device, which includes a wheel disc 1, a nozzle box 2 reducer 3, a motor 4, a bracket 5, and a middle shaft 8, wherein:
the wheel disc 1 comprises a first rotating disc and a second rotating disc, the central axes of the first rotating disc and the second rotating disc and the central axis of the center shaft are on the same straight line, and through holes are formed in the centers of the first rotating disc and the second rotating disc and fixedly connected with the center shaft;
the middle shaft is connected to the bracket through a revolute pair and can rotate around a rotating shaft of the revolute pair, and the middle shaft penetrates through the first wheel disc and the second wheel disc and is fixedly connected with the wheel discs; the motor is connected with the middle shaft through the speed reducer and drives the wheel disc to move through the middle shaft;
the spraying pipe box is connected to the wheel disc through a pin shaft, one end portion of the spraying pipe box is connected to the first wheel disc through the pin shaft through a revolute pair, the other end portion of the spraying pipe box is connected to the second rotating disc through the pin shaft through a revolute pair, the spraying pipe box can rotate around the pin shaft, when the wheel disc rotates to drive the spraying pipe box to rotate along the axis of the middle shaft, the spraying pipe box rotates relative to the wheel disc under the action of gravity, the bottom of the spraying pipe box is parallel to the ground, and the accurate.
As a preferred scheme, the device also can comprise a speed reducer, wherein the wheel disc box is fixedly connected with the middle shaft and is connected with the motor through the speed reducer, the motor drives the speed reducer to rotate, the speed reducer drives the middle shaft to rotate, and the middle shaft drives the wheel disc to rotate.
The spray pipe box is connected on the wheel disc, and different spray pipe boxes are replaced by utilizing the rotary motion of the wheel disc. The first rotating disc and the second rotating disc are circular or polygonal in shape, and can also be oval.
More than two spray pipe boxes are arranged between the first rotary table and the second rotary table in parallel. The spray pipe boxes are symmetrically arranged on the wheel disc. 12 spray pipe positions can be designed, 10 spray pipe boxes with different Mach numbers are arranged on a circular wheel disc, and the positions of two opposite spray pipes are reserved and used as a model installation position and an equipment maintenance position.
The different nozzle boxes have different Mach numbers.
The spray pipe storage and quick replacement device provided by the invention further comprises a clamping device 7 which is used for providing clamping force for the spray pipe box, ensuring that the spray pipe box is accurately positioned and providing clamping force required in the wind tunnel operation process for the spray pipe.
As shown in fig. 2 and 3, the clamping device comprises a first clamping cylinder 9-1, a second clamping cylinder 9-2, a third clamping cylinder 9-3, a fourth clamping cylinder 9-4, a clamping platform 10, a first lifting cylinder 11-1, a second lifting cylinder 11-2, a third lifting cylinder 11-3, a fourth lifting cylinder 11-4 and a base 12;
the first lifting cylinder 11-1, the second lifting cylinder 11-2, the third lifting cylinder 11-3 and the fourth lifting cylinder 11-4 are arranged on the base 12 and support four corners of the clamping platform 10; the lifting cylinder controls the clamping platform to move up and down, and the clamping cylinder is installed on the clamping platform and used for clamping the spray pipe box after the spray pipe box is in place.
The first clamping cylinder 9-1, the second clamping cylinder 9-2, the third clamping cylinder 9-3 and the fourth clamping cylinder 9-4 are fixedly arranged on the clamping platform 10, wherein the first clamping cylinder 9-1 and the third clamping cylinder 9-3 are oppositely arranged in a face-to-face mode and used for clamping two sides of one end of the spray pipe box, which are perpendicular to the ground, and the second clamping cylinder 9-2 and the fourth clamping cylinder 9-4 are oppositely arranged in a face-to-face mode and used for clamping two sides of the other end of the spray pipe box, which are perpendicular to the ground. Considering the size of the spray pipe box, 1 set or 2 sets of clamping devices can be arranged according to the size of the spray pipe. The clamping cylinder and the lifting cylinder are hydraulic cylinders, pneumatic cylinders or electric cylinders.
The position of the lowest spray pipe box is used as a wind tunnel test position, before the test is started, the wheel disc is rotated to the vacant position to be opposite to the test position, and the wind tunnel test model can be installed and replaced and the test section can be overhauled at the position. After the test is started, according to the test requirement, the starting motor rotates the spray pipe boxes with the required Mach number to the test position in sequence for testing. When the spray pipe box moves to a designated position, the clamping platform is jacked up by the lifting cylinder and then is actuated by the clamping cylinder to clamp the spray pipe box so as to provide clamping force required by the test for the spray pipe box. The operation is that the lifting cylinder lifts the clamping platform, and the clamping cylinder acts to clamp the spray pipe box after the clamping platform is in place. After blowing, press from both sides tight jar and move, loosen the spray tube case, lift platform falls down, and lift platform targets in place the back, is rotated by the motor drive rim plate, rotates the test position with the spray tube case of next mach number and blows, so relapse.
All equipment are fixed on the support, and the support strides across wind-tunnel equipment, can not cause the interference to original wind-tunnel equipment, conveniently reforms transform on original wind-tunnel basis, and the support shape can carry out the flexible design according to different wind-tunnel equipment.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make variations and modifications without departing from the spirit and scope of the present invention.
Those skilled in the art will appreciate that the invention may be practiced without these specific details.

Claims (8)

1. The utility model provides a spray tube is deposited and quick replacement device, its characterized in that includes rim plate (1), spray tube case (2) reduction gear (3), motor (4), support (5), axis (8) and clamping device (7), wherein:
the wheel disc (1) comprises a first rotating disc and a second rotating disc, the central axes of the first rotating disc and the second rotating disc are in the same straight line with the central axis of the center shaft, and through holes are formed in the centers of the first rotating disc and the second rotating disc and fixedly connected with the center shaft;
the middle shaft is connected to the bracket through a revolute pair and can rotate around a rotating shaft of the revolute pair, and the middle shaft penetrates through the first wheel disc and the second wheel disc and is fixedly connected with the wheel discs; the motor is connected with the middle shaft through the speed reducer and drives the wheel disc to move through the middle shaft;
the end part of one end of the spray pipe box is connected to the first wheel disc through a pin shaft by using a revolute pair, the end part of the other end of the spray pipe box is connected to the second rotary disc through a pin shaft by using a revolute pair, the spray pipe box can rotate around the pin shaft, when the wheel disc rotates to drive the spray pipe box to rotate along the axis of the central shaft, the spray pipe box rotates relative to the wheel disc under the action of gravity, and the bottom of the spray pipe box is parallel;
the clamping device (7) is used for providing clamping force for the spray pipe box, ensuring that the spray pipe box is accurate in position and providing clamping force required in the wind tunnel operation process for the spray pipe;
the clamping device comprises a first clamping cylinder (9-1), a second clamping cylinder (9-2), a third clamping cylinder (9-3), a fourth clamping cylinder (9-4), a clamping platform (10), a first lifting cylinder (11-1), a second lifting cylinder (11-2), a third lifting cylinder (11-3), a fourth lifting cylinder (11-4) and a base (12);
the first lifting cylinder (11-1), the second lifting cylinder (11-2), the third lifting cylinder (11-3) and the fourth lifting cylinder (11-4) are arranged on the base (12) and support four corners of the clamping platform (10);
the first clamping cylinder (9-1), the second clamping cylinder (9-2), the third clamping cylinder (9-3) and the fourth clamping cylinder (9-4) are fixedly arranged on a clamping platform (10), wherein the first clamping cylinder (9-1) and the third clamping cylinder (9-3) are oppositely arranged in a face-to-face mode and used for clamping two sides of one end of the spray pipe box, which are perpendicular to the ground, and the second clamping cylinder (9-2) and the fourth clamping cylinder (9-4) are oppositely arranged in a face-to-face mode and used for clamping two sides of the other end of the spray pipe box, which are perpendicular to the ground;
after the test is started, according to the test requirement, starting a motor to sequentially rotate the spray pipe boxes with the required Mach number to a test position for testing; when the spray pipe box moves to a designated position, the clamping platform is jacked up by the first lifting cylinder (11-1), the second lifting cylinder (11-2), the third lifting cylinder (11-3) and the fourth lifting cylinder (11-4), and then the first clamping cylinder (9-1), the second clamping cylinder (9-2), the third clamping cylinder (9-3) and the fourth clamping cylinder (9-4) actuate to clamp the spray pipe box and provide clamping force required by a test for the spray pipe box; the specific operation is as follows: the first lifting cylinder (11-1), the second lifting cylinder (11-2), the third lifting cylinder (11-3) and the fourth lifting cylinder (11-4) lift the clamping platform, and after the clamping platform is in place, the first clamping cylinder (9-1), the second clamping cylinder (9-2), the third clamping cylinder (9-3) and the fourth clamping cylinder (9-4) act to clamp the nozzle box; after the blowing is finished, the first clamping cylinder (9-1), the second clamping cylinder (9-2), the third clamping cylinder (9-3) and the fourth clamping cylinder (9-4) act to loosen the spray pipe box, the lifting platform falls down, and after the lifting platform is in place, the motor drives the wheel disc to rotate the spray pipe box with the next Mach number to the test position for blowing, and the operation is repeated.
2. The spray bar storage and quick change device of claim 1 wherein said first rotatable disk and said second rotatable disk are circular or polygonal in shape.
3. A nozzle tube storage and quick change apparatus as claimed in claim 1, wherein more than two nozzle tubes are disposed in parallel between said first rotatable disk and said second rotatable disk.
4. A nozzle storage and quick change apparatus as claimed in claim 1, wherein the different nozzle boxes have different mach numbers.
5. The spray tube storage and quick change device of claim 1 wherein the clamp means is selected from the group consisting of 1 set and 2 sets depending on the size of the spray tube.
6. The lance storage and quick change apparatus of claim 1 wherein the clamping cylinder and the lifting cylinder are hydraulic, pneumatic or electric cylinders.
7. The spray tube storage and quick replacement device of claim 1, further comprising a speed reducer, wherein the wheel box is fixedly connected to the center shaft and is connected to the motor through the speed reducer, the motor drives the speed reducer to rotate, the speed reducer drives the center shaft to rotate, and the center shaft drives the wheel to rotate.
8. The lance storage and quick change apparatus of claim 1 wherein the carriage is mounted on the ground and the carriage spans the wind tunnel test rig.
CN201911097148.0A 2019-11-11 2019-11-11 Spray pipe storage and quick replacement device Active CN110977903B (en)

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Application Number Priority Date Filing Date Title
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CN110977903B true CN110977903B (en) 2021-04-13

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112171628B (en) * 2020-09-28 2022-05-31 中国空气动力研究与发展中心高速空气动力研究所 Device for replacing solid block spray pipe of high-speed wind tunnel

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