CN215865762U - Spacing antiskid between adjustable roof beam of interval - Google Patents
Spacing antiskid between adjustable roof beam of interval Download PDFInfo
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- CN215865762U CN215865762U CN202121283529.0U CN202121283529U CN215865762U CN 215865762 U CN215865762 U CN 215865762U CN 202121283529 U CN202121283529 U CN 202121283529U CN 215865762 U CN215865762 U CN 215865762U
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Abstract
The application belongs to the technical field of airplane strength test design, and particularly relates to a spacing antiskid device between beams with adjustable spacing, which comprises a fixed base (4), an adjusting screw rod (5) and a top plate (6), wherein the fixed base comprises a base main body (14) and a clamping part (7) extending to one side from the base main body (14), the base main body (14) is provided with a shaft hole (9) and an adjusting nut (10), and the clamping part (7) is clamped on a primary beam (1); the adjusting screw rod (5) is matched with the adjusting nut (10) so that the length of the adjusting screw rod (5) extending out of the shaft hole (9) is adjustable; the top plate is detachably mounted at one end of the adjusting screw rod (5), the top plate (6) is provided with a top disc (13), and the top disc (13) can be extruded on a web plate of the secondary beam (2) under the pushing of the adjusting screw rod (5). This application has stronger position, interval controllability, can adapt to the antiskid requirement between the one-level roof beam of multiple form and the second grade roof beam.
Description
Technical Field
The application belongs to the technical field of aircraft strength tests, and particularly relates to an interval-adjustable spacing antiskid device between beams.
Background
In the static force/fatigue test of the ground strength of the airplane structure loaded by adopting a portal frame mode, a secondary beam is usually lapped on a primary beam of the portal frame, and an actuating cylinder is fixed on the secondary beam, so that the secondary beam is a main bearing part. When the load generates a component on the secondary beam that is not perpendicular to the primary beam, relative sliding between the secondary beam and the primary beam will occur. Accidental sliding of the secondary beam causes the loading equipment to deviate from the original design position, so that the loading precision of the test is influenced, and inaccurate test data is generated; if the load is large, the sudden sliding of the secondary beam can cause the over-tolerance protection of the loading control equipment, and the test can be terminated emergently. Such accidental slipping, if occurring during high-load testing, may result in accidental damage to the test piece or injury to the test participants, resulting in a test accident.
In the prior static force or fatigue test process, the following methods are adopted to solve the relative sliding between the beams:
1) increase friction force
The basic principle of the method for increasing the friction force is as follows: the position of the secondary beam is coordinately installed according to the space position of the test site, and other devices are arranged on two sides of the secondary beam to prop against the secondary beam, so that the friction force of the secondary beam is indirectly increased, and the relative sliding is avoided. The method has the following defects:
a) the friction force required for skid resistance is unknown and is generally implemented according to experience, and the skid resistance effect has uncertainty;
b) in the fatigue test process, because small relative sliding is gradually accumulated, the beam position needs to be regularly and manually rearranged and adjusted, and the workload is large in the whole fatigue test period;
c) other equipment used for increasing friction occupies test resources.
2) Fixed anti-skid device
The basic principle of the fixed anti-skid device is that the fixed anti-skid device is directly connected with the primary beam through bolts and is blocked on two sides of the secondary beam through self height, so that anti-skid is realized. The method has the following defects:
a) the installation position is fixed, and the adjustment is inconvenient;
b) the commonality is not strong, need reform transform the one-level roof beam to different antiskid condition.
SUMMERY OF THE UTILITY MODEL
In order to solve at least one of the above-mentioned technical problem, this application provides spacing antiskid between adjustable roof beam of interval, includes:
the fixed base comprises a base main body and a clamping component extending to one side from the base main body, the base main body is provided with a shaft hole and an adjusting nut, the shaft hole is coaxial with the adjusting nut, and the clamping component is clamped on the primary beam;
the adjusting screw rod penetrates through the shaft hole and the adjusting nut, and the adjusting screw rod is matched with the adjusting nut so that the length of the adjusting screw rod extending out of the shaft hole is adjustable;
the top plate is detachably mounted at one end of the adjusting screw rod, the top plate is provided with a top plate which is enlarged relative to the cross section area of the end of the adjusting screw rod, and the top plate can be extruded on a web plate of the secondary beam under the pushing of the adjusting screw rod.
Preferably, the clamping member comprises two opposed panels forming a space therebetween for receiving the top rail of the primary beam.
Preferably, a plurality of through holes are arranged on the top rail of the primary beam along the extension direction of the rail, corresponding positioning holes are formed in two plate surfaces of the clamping component, and the clamping component is fixed on the primary beam through bolts.
Preferably, the positioning holes on any one plate surface of the clamping member have a first interval, the through holes on the top rail of the primary beam have a second interval, the second interval is an integral multiple of the first interval, and when the clamping member is mounted on the primary beam through bolts, at least two positioning holes on any one plate surface align with the through holes on the top rail of the primary beam.
Preferably, the top plate further comprises a threaded joint, an external thread is correspondingly arranged at the end of the adjusting screw rod, and the top plate is fixed at the end of the adjusting screw rod through the threaded joint.
Preferably, the top plate is mounted at the end of the adjusting screw in an interference fit manner.
Preferably, one end of the adjusting screw rod, which is far away from the top plate, is provided with a rotating key.
Preferably, the base main body is provided with a plurality of support plates, the adjusting nut is detachably mounted between the two preset support plates, and the shaft hole penetrates through each support plate and is coaxial with the adjusting nut.
Preferably, the base body is further provided with a lifting hole.
Preferably, the top plate is made of 30CrMnSiA material, and the fixed base is made of Q235 steel material.
This application has designed a device that can effectively prevent relative slip between roof beam, has stronger position, interval controllability, can adapt to the antiskid requirement between the one-level roof beam of multiple form and the second grade roof beam, possesses the simple characteristic of installation simultaneously, has reduced the work load of roof beam antiskid installation, can play labour saving and time saving's positive effect.
Drawings
Fig. 1 is a schematic structural view of an antiskid device according to a preferred embodiment of the spacing adjustable inter-beam limiting antiskid device of the present application.
Fig. 2 is a schematic structural diagram of the fixing base according to the embodiment shown in fig. 1 of the present application.
Fig. 3 is a schematic structural view of the top plate of the embodiment shown in fig. 1 of the present application.
Fig. 4 is a schematic view of the antiskid device according to the embodiment of fig. 1.
The anti-skid device comprises a first-stage beam, a second-stage beam, a 3-anti-skid device, a 4-fixed base, a 5-adjusting screw rod, a 6-top plate, a 7-clamping component, 8-positioning holes, 9-shaft holes, 10-adjusting nuts, 11-lifting holes, 12-threaded connectors, 13-top plates and 14-base main bodies.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the accompanying drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all embodiments of the present application. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application, and should not be construed as limiting the present application. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application. Embodiments of the present application will be described in detail below with reference to the drawings.
This application is to in aircraft structure ground strength static force/fatigue test, the problem that relative slip appears in loading process in lapped one-level roof beam and second grade roof beam on the portal frame, designs a spacing antiskid who installs on one-level roof beam, mainly used prevents that the experimental stability that leads to because of the relative slip between one-level roof beam and the second grade roof beam in the experimental loading process reduces, the problem that the loading accuracy reduces or the experimental accident of loading control system overproof protection stops.
The spacing antiskid device between adjustable roof beam of this application, as shown in fig. 1-4, antiskid 3 mainly includes:
the fixed base 4 comprises a base main body 14 and a clamping component 7 extending to one side from the base main body 14, wherein the base main body 14 is provided with a shaft hole 9 and an adjusting nut 10, the shaft hole 9 is coaxial with the adjusting nut 10, and the clamping component 7 is clamped on the primary beam 1;
the adjusting screw rod 5 penetrates through the mounting shaft hole 9 and the adjusting nut 10, and the adjusting screw rod 5 is matched with the adjusting nut 10, so that the length of the adjusting screw rod 5 extending out of the mounting shaft hole 9 is adjustable;
the top plate 6 is detachably mounted at one end part of the adjusting screw rod 5, the top plate 6 is provided with a top disc 13 which is enlarged relative to the cross section area of the end part of the adjusting screw rod 5, and the top disc 13 can be extruded on a web plate of the secondary beam 2 under the pushing of the adjusting screw rod 5.
Referring to fig. 4, the spacing anti-slip device between adjustable beams provided by the application can effectively prevent the second-level beam 2 lapped on the first-level beam 1 of the portal frame from sliding in the loading process. Install this antiskid 3 in the primary beam 1 top corresponding position on the track during use, through fine setting clamping part 7, select corresponding fixed position to fix antiskid 3 and primary beam 1, then rotatory adjusting screw 5 at top makes the beam web contact surface of top dish 13 top on secondary beam 2 web, or all arrange the device in secondary beam both sides, the realization is anti-skidding to the two-way restraint of secondary beam, thereby realize the stability among the static force fatigue test loading process, ensure experimental going on smoothly.
In some alternative embodiments, the clamping member 7 comprises two opposing plate surfaces forming a space therebetween for receiving the top rail of the primary beam 1. In this embodiment, through two face centre gripping one-level roof beams 1 of clamping part, can set up a plurality of centre gripping positions on one-level roof beam 1 and supply 7 centre grippings of clamping part to realize antiskid 3 along the orbital longitudinal adjustment in one-level roof beam top.
In some alternative embodiments, the top rail of the primary beam 1 is provided with a plurality of through holes along the rail extending direction, two plate surfaces of the clamping member 7 are provided with corresponding positioning holes 8, and the clamping member 7 is fixed on the primary beam 1 through bolts. In an alternative embodiment, the clamping member 7 and the primary beam 1 may be fixed by tightening a nut.
In some alternative embodiments, the positioning holes 8 on any one plate surface of the clamping member 7 have a first pitch, the through holes on the top rail of the primary beam 1 have a second pitch which is an integral multiple of the first pitch, and at least two positioning holes 8 on any one plate surface are aligned with the through holes on the top rail of the primary beam 1 when the clamping member 7 is mounted on the primary beam 1 by bolts. Referring to fig. 2 and 4, the clamping member is generally provided with an extension portion along the top rail of the primary beam 1 in the longitudinal direction, so that a plurality of positioning holes 8 can be arranged thereon, the positioning holes 8 of the clamping member 7 are arranged more densely, the primary beam 1 is improved less for maintaining the rigidity and strength characteristics of the original member, the distance between the through holes is larger, but the distance between the through holes on the primary beam 1 is generally set to be an integral multiple of the distance between the positioning holes on the clamping member 7, so that the clamping member 7 can have a plurality of adjustment positions on the primary beam 1, and it can be ensured that after one positioning hole of the clamping member 7 is aligned with the through hole on the primary beam 1, other positioning holes of the clamping member 7 can also be aligned with other through holes on the primary beam 1. This embodiment is through the locating hole interval of design on the clamping part 7, realizes that it can guarantee to have two holes to pass through the bolt-up with being connected on the one-level roof beam 1 in any position, has improved joint strength.
In some alternative embodiments, the top plate 6 further includes a threaded joint 12, the end of the adjusting screw rod 5 is correspondingly provided with an external thread, and the top plate 6 is fixed at the end of the adjusting screw rod 5 through the threaded joint 12. Through threaded connection, can realize the quick installation of each part and the quick replacement after damaging.
In alternative embodiments, the top plate 6 may also be mounted on the end of the adjusting screw 5 by interference fit, or the top plate 6 may be designed integrally with the adjusting screw 5.
In some alternative embodiments, the end of the adjusting screw 5 facing away from the top plate 6 is provided with a rotary key, which is a nut with reference to fig. 1, but in alternative embodiments, other structures providing manual force may be provided, such as a rotary disc, a rotary wrench, etc.
In some alternative embodiments, the base body 14 is provided with a plurality of support plates, the adjusting nut 10 is detachably mounted between two preset support plates, and the shaft hole 9 penetrates through each support plate and is coaxial with the adjusting nut 10. Referring to fig. 2, the two middle support plates on the base body 14 form a containing space, the regulating nut 10 is installed in the containing space, the plane part of the outer end of the regulating nut 10 is just attached to the inner wall of the containing space, so that the regulating nut 10 can be prevented from rotating in the containing space, and after the regulating screw 5 passes through the regulating nut 10, the regulating screw 5 can be selected to move along the axial direction due to the fact that the regulating nut is fixed. The embodiment sets up adjusting nut 10 as the detachable structure spare, can be because of the screw spare damage back that the test process leads to, the corresponding structure part of quick replacement.
This application passes shaft hole 9 through accommodate the lead screw 5 and is connected with unable adjustment base 4. And adjusting the adjusting nut 10 to control the length of the screw rod to be retracted, so as to realize fine adjustment of the distance between the screw rod and the beam web of the secondary beam 2.
This application passes through screwed joint 12 and connects accommodate the lead screw 5 in roof 6, can guarantee long-time use can not warp the removal when effective antiskid. The close contact of the web contact surface of the top plate 13 with the secondary beam 2 is achieved by adjusting the adjusting nut 10. Through the design of great web plate area of contact, can not cause the damage to web plate structure, can provide the lateral force of great load simultaneously and carry out the antiskid.
In some alternative embodiments, the base body 14 is further provided with a lifting hole 11. The structural part that this application relates to is great in weight, can hang antiskid 3 through the lifting eye and install.
In some alternative embodiments, the top plate 6 is made of 30CrMnSiA material, and the fixed base plate 4 is made of Q235 steel material. The roof of this application has great area of contact and rigidity, and the lifting surface is big and non-deformable. Through the antiskid that the relation of connection describes between above-mentioned material and the above-mentioned structure, 2 tons (factor of safety f is 4) of maximum antiskid ability can play the antiskid effect of restraint to the second grade roof beam 2 of overlap joint on first order roof beam 1 high-efficiently, improve static force/fatigue test loading process stability.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a spacing antiskid between adjustable roof beam of interval which characterized in that includes:
the fixed base (4) comprises a base main body (14) and a clamping component (7) extending to one side from the base main body (14), wherein the base main body (14) is provided with a shaft hole (9) and an adjusting nut (10), the shaft hole (9) is coaxial with the adjusting nut (10), and the clamping component (7) is clamped on the primary beam (1);
the adjusting screw rod (5) penetrates through the shaft hole (9) and the adjusting nut (10), and the adjusting screw rod (5) is matched with the adjusting nut (10) so that the length of the adjusting screw rod (5) extending out of the shaft hole (9) can be adjusted;
the top plate (6) is detachably mounted at one end of the adjusting screw rod (5), the top plate (6) is provided with a top plate (13) which is enlarged relative to the cross section area of the end of the adjusting screw rod (5), and the top plate (13) can be extruded on a web plate of the secondary beam (2) under the pushing of the adjusting screw rod (5).
2. Spacing adjustable inter-beam spacing antiskid device according to claim 1, characterized in that said clamping member (7) comprises two opposite faces forming between them a space to accommodate the top track of said primary beam (1).
3. The spacing adjustable inter-beam limiting and anti-slip device as claimed in claim 2, wherein a plurality of through holes are arranged on the top rail of the primary beam (1) along the extension direction of the rail, corresponding positioning holes (8) are arranged on two plate surfaces of the clamping component (7), and the clamping component (7) is fixed on the primary beam (1) through bolts.
4. The spacing adjustable inter-beam limiting and anti-slip device as claimed in claim 2, wherein the positioning holes (8) on either plate surface of the clamping member (7) have a first spacing, the through holes on the top rail of the primary beam (1) have a second spacing which is an integral multiple of the first spacing, and at least two positioning holes (8) on either plate surface are aligned with the through holes on the top rail of the primary beam (1) when the clamping member (7) is mounted to the primary beam (1) by bolts.
5. The spacing adjustable inter-beam limiting and anti-slip device according to claim 1, wherein the top plate (6) further comprises a threaded joint (12), an external thread is correspondingly arranged at the end of the adjusting screw rod (5), and the top plate (6) is fixed at the end of the adjusting screw rod (5) through the threaded joint (12).
6. Spacing adjustable inter-beam spacing antiskid device according to claim 1, characterized in that said top plate (6) is fitted at the end of said adjusting screw (5) with interference fit.
7. Spacing adjustable inter-beam limiting and anti-slip device according to claim 1, characterized in that the adjusting screw (5) is provided with a rotation key at its end facing away from the top plate (6).
8. The spacing adjustable inter-beam limiting and anti-skidding device according to claim 1, wherein a plurality of support plates are arranged on the base main body (14), the adjusting nut (10) is detachably installed between two preset support plates, and the shaft hole (9) penetrates through each support plate and is coaxial with the adjusting nut (10).
9. The spacing adjustable inter-beam limiting and anti-slip device as claimed in claim 1, wherein the base main body (14) is further provided with lifting holes (11).
10. The spacing adjustable inter-beam limiting and anti-slip device according to claim 1, wherein the top plate (6) is made of 30CrMnSiA material, and the fixed base (4) is made of Q235 steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121283529.0U CN215865762U (en) | 2021-06-09 | 2021-06-09 | Spacing antiskid between adjustable roof beam of interval |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121283529.0U CN215865762U (en) | 2021-06-09 | 2021-06-09 | Spacing antiskid between adjustable roof beam of interval |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215865762U true CN215865762U (en) | 2022-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121283529.0U Active CN215865762U (en) | 2021-06-09 | 2021-06-09 | Spacing antiskid between adjustable roof beam of interval |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215865762U (en) |
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2021
- 2021-06-09 CN CN202121283529.0U patent/CN215865762U/en active Active
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