CN222652741U - A horizontal brace buckling test device - Google Patents
A horizontal brace buckling test device Download PDFInfo
- Publication number
- CN222652741U CN222652741U CN202421087830.8U CN202421087830U CN222652741U CN 222652741 U CN222652741 U CN 222652741U CN 202421087830 U CN202421087830 U CN 202421087830U CN 222652741 U CN222652741 U CN 222652741U
- Authority
- CN
- China
- Prior art keywords
- wallboard
- rod
- loading
- landing gear
- servo cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to horizontal brace rod buckling test equipment which comprises a machine frame table top, a left loading wallboard and a right loading wallboard which are vertically arranged on the machine frame table top, wherein a connecting part is arranged on the right side surface of the left loading wallboard, an electric servo cylinder is arranged on the right loading wallboard, the end part of a piston rod of the electric servo cylinder can be connected with one end of a landing gear brace rod, the other end of the landing gear brace rod can be connected with the connecting part, after installation, the landing gear brace rod and the piston rod of the electric servo cylinder are positioned on the same straight line, the electric servo cylinder is started, the end part of the piston rod of the electric servo cylinder moves leftwards to extrude the landing gear brace rod, a pressure sensor is further arranged at the connecting part, and the horizontal brace rod buckling test equipment is also provided with a micro-displacement pressure measuring assembly in a matched mode. The novel landing gear support rod testing press can meet the testing requirements of the existing landing gear support rods, can be updated and adapt to the testing requirements of new machine types, and is suitable for automatic, miniaturized and movable landing gear support rod buckling testing presses used in army repair factories.
Description
Technical Field
The utility model relates to the technical field of aircraft landing gears, in particular to horizontal stay bar buckling test equipment.
Background
Landing gear stay bars are key bearing components on an aircraft landing gear and are used for bearing various lateral forces born by the landing gear in the working process, so that landing gear stay bar bearing test is an important work during the fixed inspection maintenance of the aircraft landing gear so as to ensure that the performance of the landing gear meets the working requirements. The buckling test of the support stay bar is completed by using professional equipment, and at present, pressure test equipment meeting the performance requirements on the market is mainly designed for testing slender products such as hydraulic cylinders, steel ropes and the like.
The existing equipment has high installation height, large volume, incapability of moving and complex operation, and can not meet the use requirement of the army carrying transition combat training, so that an army repair shop can not be equipped, and the landing gear stay bar test is mainly carried out by a overhaul shop at present, so that the test period is long, and the combat efficiency is influenced.
Therefore, in order to overcome the defects of the prior art, the horizontal brace rod buckling test equipment is provided, can be adapted to the test requirements of the landing gear brace rods of various types, has small volume, is movable and is convenient to carry.
Disclosure of utility model
The utility model aims to overcome the defects of the prior art, provides horizontal brace rod buckling test equipment, can meet the test requirement of the existing machine type undercarriage brace rod, can be upgraded and adapted to the test requirement of a new machine type, has smaller volume and mobility, is beneficial to improving the aircraft maintenance and troubleshooting capability of a first army, and meets the aircraft maintenance requirement.
The aim of the utility model is realized by the following technical scheme:
A horizontal brace rod buckling test device is used for bearing test of a brace rod of a landing gear, and comprises a machine frame table top, a left loading wallboard and a right loading wallboard which are vertically arranged on the machine frame table top, wherein a connecting part is arranged on the right side face of the left loading wallboard, an electric servo cylinder is arranged on the right loading wallboard, the end part of a piston rod of the electric servo cylinder can be connected with one end of the brace rod of the landing gear, the other end of the brace rod of the landing gear can be connected with the connecting part, after installation, the brace rod of the landing gear and the piston rod of the electric servo cylinder are positioned on the same straight line, the electric servo cylinder is started, the end part of the piston rod of the electric servo cylinder moves leftwards to extrude the brace rod of the landing gear, a pressure sensor is further arranged at the connecting part, and a micro-displacement pressure measuring assembly is also arranged in a matched mode for measuring deformation quantity of the brace rod of the landing gear. The pressure sensor is used for detecting the pressure applied by the electric servo cylinder to the landing gear stay bar, and the micro-displacement pressure measuring component can be arranged below the middle part of the landing gear stay bar so as to detect the deformation quantity of the landing gear stay bar (the landing gear stay bar bends upwards or downwards under the extrusion of the piston rod) under different pressures, thereby realizing the compression and buckling test of the stay bar under different pressures.
In a preferred embodiment of the scheme, a guide rail is arranged above the left side of the rack table top, a left loading wallboard is arranged on the guide rail in a left-right sliding mode, a screw pair without a self-locking function is further arranged above the left side of the rack table top, and a moving piece of the screw pair is the left loading wallboard. So that the left loading wallboard is driven to move left and right by the screw rod of the screw rod pair.
In a preferred embodiment of the scheme, the horizontal brace rod buckling testing device further comprises at least two rod pieces which are symmetrically arranged on the right loading wallboard in a left-right mode, the right ends of the rod pieces are vertically arranged on the right loading wallboard, through holes are formed in the left loading wallboard, the left ends of the rod pieces penetrate out of the through holes leftwards, limiting blocks are detachably inserted in the inserting holes, and after installation is completed, the left side faces of the left loading wallboard are abutted against the limiting blocks. The load of the horizontal brace rod buckling test equipment can reach tens of tons, and the left loading wallboard can be limited by the arrangement of the limiting block, so that the left loading wallboard is prevented from moving leftwards under the pressure of the piston rod.
In a preferred embodiment of the present solution, the right end of the rod is provided with a threaded section, the right loading wall plate is provided with a mounting hole, and the right end of the rod is screwed on the right loading wall plate through the mounting hole and via two nuts.
In a preferred embodiment of the scheme, the horizontal brace rod buckling testing equipment further comprises an electrical control system, wherein the electrical control system comprises an electrical control device and an operation screen, and the operation screen, the electric servo cylinder and the pressure sensor are in telecommunication connection with the electrical control device respectively.
In a preferred embodiment of the scheme, the screw pair comprises a screw, a screw pair support I and a screw pair support II, two ends of the screw are respectively rotatably arranged on the screw pair support I and the screw pair support II, a left loading wallboard is positioned between the screw pair support I and the screw pair support II, a threaded hole is formed in the lower portion of the left loading wallboard, the screw is in threaded fit with the threaded hole, and a hand wheel is further arranged after the left end of the screw penetrates out of the screw pair support I.
In a preferred embodiment of the scheme, two ends of the landing gear stay bar are respectively provided with a connecting lug, the right side surface of the left loading wallboard and the end part of a piston rod of the electric servo cylinder are respectively provided with an ear plate, and the ear plates and the connecting lugs at the two ends of the landing gear stay bar can be correspondingly connected through pin shafts.
Further, in a preferred embodiment of the present solution, the connecting ear is a binaural ear plate, and the two ear plates are monaural ear plates, and the two monaural ear plates and the piston rod of the electric servo cylinder are located on the same straight line.
In a preferred embodiment of the scheme, a round hole is formed in the right loading wallboard, the right side of the right loading wallboard is mounted on the electric servo cylinder through a plurality of bolts, and a piston rod of the electric servo cylinder penetrates out of the right loading wallboard from the round hole to the left.
In a preferred embodiment of the scheme, the stand table is mounted on a bracket, and four universal wheels and a plurality of adjustable foot cups are arranged at the bottom of the bracket.
In a preferred embodiment of the solution, the support is internally provided with an accessory box and an electrical control cabinet, and the electrical control device is arranged in the electrical control cabinet.
In a preferred embodiment of the present solution, a lifting lug is respectively disposed at the top of the left loading wall board and the right loading wall board.
The beneficial effects of the utility model are as follows:
(1) The horizontal brace rod buckling test equipment comprises a left loading wallboard and a right loading wallboard, wherein the left loading wallboard and the right loading wallboard are arranged on a machine frame table surface of the horizontal brace rod buckling test equipment, an electric servo cylinder is arranged on the right loading wallboard, an ear plate is respectively arranged at the end part of a piston rod of the electric servo cylinder and the right side of the left loading wallboard, connecting ears at the two ends of a brace rod of a landing gear can be correspondingly connected with the two ear plates, a pressure sensor is further arranged at the right side surface of the left loading wallboard, the displacement of the servo electric cylinder is controlled through an electric operation screen of the test equipment, the pressure applied to the brace rod of the landing gear is regulated, and a micro-displacement pressure measuring assembly is arranged below the middle part of the brace rod of the landing gear so as to correspondingly detect the deformation quantity of the brace rod of the landing gear under different pressures, so that the buckling test and the detection of the deformation quantity of each pressure section of the brace rod of the landing gear are realized;
In addition, when the main stay bar and the front stay bar of the airplane are subjected to buckling test, the appearance installation size is relatively large, a screw rod pair mechanism which is not self-locking is arranged on a table top of a rack for the convenience and quickness of installation test, and a left loading wallboard provided with a pressure sensor side is used as a moving part of the screw rod pair mechanism, so that the position of the left loading wallboard can be flexibly adjusted through adjusting a hand wheel at the outer end of the screw rod, the distance between the left loading wallboard and a right loading wallboard is adjusted, the scheme can be suitable for installing tested pieces of different types, and according to the stress condition of different stay bars during working, the simulation test of the stay bars of different types is carried out on equipment of the scheme;
(2) The frame table top of the horizontal supporting rod buckling testing equipment is arranged on a support, an electric control device, an operation screen, an electric servo cylinder and a pressure sensor are arranged in the support and are in telecommunication connection with the electric control device respectively so as to facilitate buckling testing automation, four universal wheels and a plurality of adjustable foot cups are further arranged at the bottom of the support, and therefore the miniaturized and movable pressure machine for the buckling testing of the landing gear supporting rod can be formed, the maintenance and troubleshooting capacity of an aircraft of a line of army can be improved, and the maintenance requirement of the aircraft can be met.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic elevational view of the present utility model;
Fig. 3 is a perspective view of the present utility model.
Detailed Description
The technical solution of the present utility model will be described in further detail with reference to the accompanying drawings, but the scope of the present utility model is not limited to the following description.
As shown in figures 1-3, the horizontal brace rod buckling testing equipment mainly comprises a bracket 10, a rack table top 3, a left loading wallboard 1, a right loading wallboard 2, an electric servo cylinder 4, a pressure sensor and an electric control system.
The left loading wallboard 1 and the right loading wallboard 2 are vertically arranged on a rack table top 3, a connecting part is arranged on the right side surface of the left loading wallboard 1, an electric servo cylinder 4 is arranged on the right loading wallboard 2, the end part of a piston rod of the electric servo cylinder 4 can be connected with one end of a landing gear supporting rod 5, the other end of the landing gear supporting rod 5 can be connected with the connecting part, the landing gear supporting rod 5 and the piston rod of the electric servo cylinder 4 are positioned on the same straight line, a pressure sensor is arranged at the connecting part, and a micro-displacement pressure measuring component can be placed below the middle part of the landing gear supporting rod 5.
Meanwhile, in the embodiment, the electric control system comprises an electric control device and an operation screen 11, wherein the operation screen 11, the electric servo cylinder 4 and the pressure sensor are respectively connected with the electric control device in a telecommunication way, during testing, the electric servo cylinder 4 is started through the operation screen, the end part of a piston rod of the electric servo cylinder 4 moves leftwards, the displacement of the electric servo cylinder can be regulated and controlled through the operation screen, the pressure applied to the landing gear support rod is further regulated, the micro-displacement pressure measuring assembly is placed below the middle part of the landing gear support rod, and deformation of the landing gear support rod 5 under different pressures is correspondingly detected, so that buckling tests and deformation detection of each pressure section of the landing gear support rod 5 are realized.
Further preferably, in this embodiment, the bracket 10 is welded by rectangular steel pipes with a stronger bending resistance, an electrical control cabinet 1003 and an accessory box 1002 are arranged in a rectangular frame of the bracket, so as to be convenient for installing electrical control elements required by a press (horizontal brace rod buckling test equipment) and accessories required in a pressure test process, a galvanized flat steel plate is arranged on the bracket 10 as a rack table top 3 after machining, a left loading wallboard 1 and a right loading wallboard 2 are vertically installed on the left side and the right side of the rack table top 3 respectively, the left loading wallboard 1 and the rack table top 3 are connected through a screw pair without a self-locking function, a hand wheel 803 is arranged at one end of the screw, the setting position of the left loading wallboard 1 can be adjusted through adjusting the hand wheel 803, and then the installation of a tested piece can be flexibly adjusted, so that the equipment is suitable for landing gear braces 5 with different models.
Further, in the present embodiment, four universal wheels 1001 and six adjustable cups are provided at the bottom of the bracket 10 to facilitate the movement and transfer of the device, and in addition, in order to facilitate the transfer of the device, a lifting lug is provided at the top of the left loading wall plate 1 and the right loading wall plate 2, respectively.
Preferably, in this embodiment, the distance between the stand 10 and the ground is 200mm, so that the whole press can be transported by a forklift, when the equipment moves to a space with limited transportation by the forklift, the position of the press can be manually moved and adjusted, and after the equipment moves to a required position, the press is fixedly supported by six adjustable foot cups below, so that shaking is prevented.
In order to realize the adjustable installation of the left loading wallboard 1, in the scheme, a guide rail 7 is arranged above the left side of the rack table top 3, the guide rail 7 is arranged left and right, the left loading wallboard 1 can be installed on the guide rail 7 in a left and right sliding mode, a screw pair without a self-locking function is arranged above the left side of the rack table top 3, and a moving part of the screw pair is the left loading wallboard 1, and the left loading wallboard 1 is driven to move left and right through the rotation of a screw 8 of the screw pair.
Referring to fig. 2, in this embodiment, the screw pair includes a screw 8, a screw pair support 801, and a screw pair support 802, two ends of the screw 8 are rotatably mounted on the screw pair support 801 and the screw pair support 802, respectively, a left loading wall plate 1 is located between the screw pair support 801 and the screw pair support 802, a threaded hole is provided at the lower part of the left loading wall plate 1, and the screw 8 is in threaded fit with the threaded hole.
Further, in order to ensure that the left loading wallboard 1 has good stability after the electric servo cylinder 4 is started, in the scheme, two rod pieces 9 are arranged on the right loading wallboard 2, the two rod pieces 9 are symmetrically arranged, the right end of each rod piece 9 is vertically arranged on the right loading wallboard 2, a through hole is arranged on the left loading wallboard 1 corresponding to the rod piece 9, the left end of each rod piece 9 penetrates out of the through hole leftwards, a plug-in hole is further formed in each rod piece 9, a limiting block 901 is detachably inserted in each plug-in hole, after the installation is completed, the left side surface of the left loading wallboard 1 is abutted against the limiting block 901, and the left loading wallboard is limited by the limiting block 901, so that the left loading wallboard 1 can be prevented from moving leftwards under the pressure of a piston rod.
In this embodiment, a threaded section is respectively provided at two ends of the rod 9, a mounting hole is provided on the right loading wall plate 2, the right end of the rod 9 is screwed on the right loading wall plate 2 through the mounting hole and via two nuts, so that the rod 9 can be detached and installed, and the design of the threaded section can facilitate fine adjustment of the left and right positions of the limiting block 901, so as to better adapt to the landing gear stay 5. In addition, detachable design can be convenient for this scheme according to undercarriage vaulting pole 5 model difference, selects the cartridge hole to set up the member 9 that the position is different.
Further, in this solution, two ends of the landing gear stay 5 are respectively provided with a connection lug 501, the right side surface of the left loading wallboard 1 and the end of the piston rod of the electric servo cylinder 4 are respectively provided with an ear plate 6, the ear plates 6 and the connection lugs 501 at two ends of the landing gear stay 5 can be correspondingly connected through pin shafts, in a preferred embodiment of this solution, the connection lugs 501 are binaural ear plates, the two ear plates 6 are single ear plates, and the two single ear plates and the piston rod of the electric servo cylinder 4 are located on the same straight line.
Further, in this embodiment, a round hole is formed in the right loading wall plate 2, the electric servo cylinder 4 is mounted on the right side of the right loading wall plate 2 through a plurality of bolts, and a piston rod of the electric servo cylinder 4 penetrates out of the right loading wall plate 2 from the round hole to the left.
The foregoing is merely a preferred embodiment of the utility model, and it is to be understood that the utility model is not limited to the form disclosed herein but is not to be construed as excluding other embodiments, but is capable of numerous other combinations, modifications and environments and is capable of modifications within the scope of the inventive concept, either as taught or as a matter of routine skill or knowledge in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the utility model are intended to be within the scope of the appended claims.
Claims (10)
1. The utility model provides a horizontal vaulting pole buckling test equipment for the pressure-bearing test of undercarriage vaulting pole (5), its characterized in that:
Comprises a frame table top (3), a left loading wallboard (1) and a right loading wallboard (2) which are vertically arranged on the frame table top (3);
The right side surface of the left loading wallboard (1) is provided with a connecting part, the right loading wallboard (2) is provided with an electric servo cylinder (4), the end part of a piston rod of the electric servo cylinder (4) can be connected with one end of a landing gear supporting rod (5), and the other end of the landing gear supporting rod (5) can be connected with the connecting part;
After the installation is finished, the landing gear supporting rod (5) and a piston rod of the electric servo cylinder (4) are positioned on the same straight line, the electric servo cylinder (4) is started, and the end part of the piston rod of the electric servo cylinder (4) moves leftwards to extrude the landing gear supporting rod (5);
a pressure sensor is also arranged at the connecting part;
The horizontal brace rod buckling test equipment is also provided with a micro-displacement pressure measuring assembly in a matched mode, so as to be used for measuring deformation of the landing gear brace rod (5).
2. The horizontal brace rod buckling test equipment according to claim 1 is characterized in that a guide rail (7) is arranged above the left side of the rack table top (3), and a left loading wallboard (1) is arranged on the guide rail (7) in a left-right sliding manner;
The upper left side of the rack table top (3) is also provided with a screw pair without self-locking function, and a moving part of the screw pair is a left loading wallboard (1).
3. The horizontal brace rod buckling testing equipment according to claim 2 is characterized by further comprising at least two rod pieces (9) symmetrically arranged on the right loading wallboard (2) left and right;
The right end of the rod piece (9) is vertically arranged on the right loading wallboard (2), the left loading wallboard (1) is provided with a through hole corresponding to the rod piece (9), and the left end of the rod piece (9) penetrates out of the through hole leftwards;
The rod piece (9) is provided with an inserting hole, a limiting block (901) is detachably inserted in the inserting hole, and after installation is finished, the left side face of the left loading wallboard (1) is abutted against the limiting block (901).
4. The horizontal brace rod buckling testing device according to claim 3, wherein the right end of the rod piece (9) is provided with a threaded section, the right loading wallboard (2) is provided with a mounting hole, and the right end of the rod piece (9) is screwed on the right loading wallboard (2) through the mounting hole and through two nuts.
5. The horizontal brace rod buckling testing equipment according to claim 2 is characterized by further comprising an electrical control system, wherein the electrical control system comprises an electrical control device and an operation screen (11);
The operation screen (11), the electric servo cylinder (4) and the pressure sensor are respectively connected with the electric control device in a telecommunication way.
6. The horizontal brace rod buckling test equipment according to claim 2, wherein the screw pair comprises a screw (8), a screw pair support I (801) and a screw pair support II (802), and two ends of the screw (8) are respectively rotatably arranged on the screw pair support I (801) and the screw pair support II (802);
The left loading wallboard (1) is positioned between the first screw rod pair support (801) and the second screw rod pair support (802), a threaded hole is formed in the lower portion of the left loading wallboard (1), and the screw rod (8) is in threaded fit with the threaded hole;
A hand wheel (803) is arranged at the left end of the screw rod (8) after penetrating out of the screw rod pair support I (801).
7. The horizontal brace rod buckling test equipment according to claim 2, wherein two ends of the landing gear brace rod (5) are respectively provided with a connecting lug part (501);
the right side face of the left loading wallboard (1) and the end part of a piston rod of the electric servo cylinder (4) are respectively provided with an ear plate (6), and the ear plates (6) and connecting lugs (501) at two ends of the landing gear stay bar (5) can be correspondingly connected through pin shafts.
8. The horizontal brace rod buckling test equipment according to claim 2 is characterized in that a round hole is formed in the right loading wallboard (2), the right side of the right loading wallboard (2) is mounted on the electric servo cylinder (4) through a plurality of bolts, and a piston rod of the electric servo cylinder (4) penetrates out of the right loading wallboard (2) leftwards from the round hole.
9. The horizontal brace rod buckling testing equipment according to claim 2, wherein the machine frame table top (3) is arranged on a support (10), and four universal wheels (1001) and a plurality of adjustable foot cups are arranged at the bottom of the support (10).
10. The horizontal brace rod buckling testing device according to claim 2, wherein the tops of the left loading wallboard (1) and the right loading wallboard (2) are respectively provided with a lifting lug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421087830.8U CN222652741U (en) | 2024-05-17 | 2024-05-17 | A horizontal brace buckling test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421087830.8U CN222652741U (en) | 2024-05-17 | 2024-05-17 | A horizontal brace buckling test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222652741U true CN222652741U (en) | 2025-03-21 |
Family
ID=95009732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421087830.8U Active CN222652741U (en) | 2024-05-17 | 2024-05-17 | A horizontal brace buckling test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222652741U (en) |
-
2024
- 2024-05-17 CN CN202421087830.8U patent/CN222652741U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109596978B (en) | New forms of energy motor simulation test line | |
| CN222652741U (en) | A horizontal brace buckling test device | |
| CN218444285U (en) | Calibration mechanism of couple type torque standard machine | |
| CN109986338B (en) | Pin pressing machine | |
| CN109324288B (en) | New forms of energy motor test wire | |
| CN202676446U (en) | MTS bench test power head fixing and adjusting device | |
| CN110497134B (en) | Positioning tool for assembly welding of front bottom plate assembly of forklift | |
| CN210863384U (en) | Rivet stretching resistance tester | |
| CN111579241B (en) | Multifunctional speed reducer performance test workbench | |
| CN213455973U (en) | Wide-range hydraulic force standard machine | |
| CN209495838U (en) | A kind of multifunctional testing frame for light industrial goods | |
| CN224051760U (en) | A multi-stress point loading test device for ship hull beams | |
| CN120971008B (en) | Lifting table leg load performance testing equipment | |
| CN218611292U (en) | Pneumatic press-mounting machine | |
| CN216645240U (en) | Bulge deformation size measuring instrument for pressure-bearing special equipment | |
| CN217032310U (en) | Axial clearance detector of shaft coupling bearing | |
| CN219996733U (en) | Simple pressure test stand | |
| CN213209712U (en) | Press machine test platform | |
| CN219712852U (en) | Display screen display angle adjusting structure of network tester | |
| CN216030546U (en) | Needle roller press-in device of automobile brake handle assembly | |
| CN217560960U (en) | Fixing device for automobile longitudinal beam inspection | |
| CN113589170B (en) | Transfer case shift fork motor performance test board | |
| CN222211931U (en) | Supporting device capable of detecting falling piece quality | |
| CN218584330U (en) | Supporting leg test tool | |
| CN223021815U (en) | Forging hardness test device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |