CN107628280B - Pull rod device convenient to rolling supporting component is in orbit maintenance - Google Patents
Pull rod device convenient to rolling supporting component is in orbit maintenance Download PDFInfo
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- CN107628280B CN107628280B CN201710713738.6A CN201710713738A CN107628280B CN 107628280 B CN107628280 B CN 107628280B CN 201710713738 A CN201710713738 A CN 201710713738A CN 107628280 B CN107628280 B CN 107628280B
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- rolling support
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Abstract
The invention relates to a pull rod device convenient for on-track maintenance of a rolling support assembly, wherein the rolling support assembly comprises a clamping device, the clamping device is arranged on a sliding table, and the sliding table is connected to a mounting seat in a sliding manner; the rolling support assembly comprises a first clamping arm, a second clamping arm and a bottom clamping arm, two sides of the first clamping arm are rotatably connected with the bottom clamping arm through a pull rod device, the pull rod device comprises a pull rod, the end A of the pull rod is rotatably connected with the first clamping arm, and the end B of the pull rod is connected with the bottom clamping arm in a sliding and rotating manner; the mounting seat is provided with the bulge, the sliding table slowly slides into the mounting seat when the rail is mounted, the large angle between the first clamping arm and the sliding table is kept unchanged, when the end B of the pull rod abuts against the bulge, the end B slides on the bottom clamping arm, the pull rod gradually lifts the first clamping arm along with the continuous sliding of the sliding table, and the angle between the first clamping arm and the sliding table is gradually reduced.
Description
Technical Field
The invention relates to a device for improving the in-orbit maintainability of a rolling support assembly, in particular to a pull rod device convenient for in-orbit maintenance of the rolling support assembly.
Background
The rotary supporting mechanism is applied to a space station sun-facing orienting device and comprises a rolling supporting component and a rotating guide rail, wherein the rolling supporting component is used for clamping and supporting the rotating guide rail so as to ensure that the solar wing can continuously and stably rotate. First, the rolling support assembly, which is a component having the same life as the space station, needs to be continuously operated on the rail for many years, and if the rolling support assembly fails, the rolling support assembly directly affects the normal operation of the space station, so that researchers design the rolling support assembly to be detachable on the rail. In the prior art, the rolling support assembly on the international space station has a serious fault, and an astronaut walks for up to three times through the space to completely replace the rolling support assembly so as to complete an on-orbit maintenance task. It must be understood that the time of flight and the operating capacity of astronauts for space travel are very limited, so that the replacement steps are cumbersome, complex and time-consuming when the rolling support assembly is repaired and replaced on the rail.
Because the space environment is very complicated, the rolling supporting component is completely exposed in harsh environments such as vacuum, high-low temperature alternation and the like when in a rail, in the prior art, the added device convenient for in-rail maintenance can not ensure that the original functions of the rolling supporting component are not influenced, and can not ensure that the rolling supporting component can still normally function after being exposed in the harsh space environment for a long time, thereby generating the cold welding phenomenon.
Disclosure of Invention
The invention aims to provide a pull rod device convenient for on-rail maintenance of a rolling support assembly, and solves the technical problems that in the prior art, the on-rail replacement step of the rolling support assembly is complicated, the time consumption is long and the like.
In order to solve the problems, the invention provides a pull rod device convenient for on-rail maintenance of a rolling support assembly, wherein the rolling support assembly comprises a clamping device, the clamping device is arranged on a sliding table, and the sliding table is connected to a mounting seat in a sliding manner; the clamping device comprises a first clamping arm, a second clamping arm and a bottom clamping arm, the first clamping arm and the second clamping arm are positioned on two sides of the bottom clamping arm, two sides of the first clamping arm are rotatably connected with the bottom clamping arm through a pull rod device, the pull rod device comprises a pull rod, the A end of the pull rod is rotatably connected with the first clamping arm, and the B end of the pull rod is slidably and rotatably connected with the bottom clamping arm; set up an arch on the mount pad, when the rail installation, the slip table to the mount pad slowly slides in, first centre gripping arm with it remains unchanged to be large-angle between the slip table, works as the B end of pull rod supports during the arch, the B end is in slide on the end centre gripping arm, along with the slip table continues to slide, the pull rod will first centre gripping arm is gradually lifted, first centre gripping arm with angle between the slip table diminishes gradually.
According to the pull rod device convenient to roll and support subassembly maintenance on orbit of this application preferred embodiment, the A end of pull rod includes A end screw, A end packing ring and A end axle bush, A end axle bush embedding the A terminal hole of pull rod, A end screw passes in proper order A end packing ring, A end axle bush with first centre gripping arm fastening connection, A end axle bush with can mutual rotation between the pull rod.
According to the pull rod device convenient to roll and support subassembly maintenance on rail of this application preferred embodiment, the one end of A end axle bush is protruding end, and the other end is little terminal surface, protruding end is located the lower surface of pull rod, the distance of the interior terminal surface of protruding end to little terminal surface is greater than the A end height of pull rod.
According to the pull rod device convenient for the on-track maintenance of the rolling support assembly, according to the preferred embodiment of the application, a sliding groove is formed in the side surface of the bottom clamping arm, and the B end of the pull rod can slide in the sliding groove; the end B comprises an end B screw, an end B bearing bush, an end B gasket, an end B retainer ring, an end B sleeve and an end B nut, the end B bearing bush is embedded into the end B hole of the pull rod, the end B screw penetrates through the end B bearing bush from the lower surface side of the pull rod and is fixedly connected with the end B nut on the upper surface side of the pull rod, the end B nut sequentially penetrates through the end B sleeve and the end B retainer ring, the end B gasket is located between the end B retainer ring and the end B bearing bush, the end B screw is embedded in a sliding groove of the bottom clamping arm, the end B screw can slide in the sliding groove, the end B bearing bush and the pull rod can rotate mutually, the end B sleeve and the end B nut can rotate mutually, and when the sliding table slides into the mounting seat, the end B sleeve can be in contact with a protruding surface of the mounting seat.
According to the pull rod device convenient to roll and support subassembly maintenance on orbit of this application preferred embodiment, the one end of B end axle bush is protruding end, and the other end is little terminal surface, protruding face is located the lower surface of pull rod, the distance of the interior terminal surface of protruding end to little terminal surface is greater than the B end height of pull rod.
According to the preferred embodiment of this application a pull rod device convenient to roll supporting component maintenance on orbit, the terminal surface of B end nut is the ladder face, B end nut includes first step and second step, the diameter of first step is greater than the diameter of second step, first step with the coaxial fixed connection of second step, B end retaining ring sets up in the second stage, the height of second step is greater than the height of B end retaining ring.
According to the preferred embodiment of this application a pull rod device convenient to roll supporting component maintenance in orbit, A end axle bush, B end axle bush, A end packing ring, B end sleeve are brass material, A end screw, B end nut, B end retaining ring, pull rod are the steel material, the spout of end centre gripping arm is titanium alloy, the arch of mount pad and with A end screw-up first centre gripping arm piece is aluminium alloy material.
According to the preferred embodiment of the present application, the pull rod device for on-orbit maintenance of the rolling support assembly further comprises a clamping bolt, the clamping bolt is rotatably disposed on the second clamping arm and the bottom clamping arm, and the clamping bolt can be connected with the first clamping arm in a threaded fastening manner.
According to the preferred embodiment of the application, the pull rod device convenient for the on-rail maintenance of the rolling support assembly is characterized in that a screw rotating block is fixedly arranged on the first clamping arm, a threaded hole matched with the clamping bolt is formed in the screw rotating block, when the rail is installed, the pull rod lifts the first clamping arm to a corresponding position, and the clamping bolt can be screwed into the threaded hole.
According to the preferred embodiment of this application a pull rod device convenient to roll supporting component maintenance on rail, be provided with the guide rail on the slip table, be provided with the track spout on the mount pad, the guide rail can slide in the track spout.
Compared with the prior art, the invention has the following technical effects:
1. the invention realizes the combination of the pushing action of the sliding table and the lifting action of the first clamping arm, and solves the problem of complex operation in the prior art. In the prior art, an astronaut needs to respectively complete two actions of pushing the sliding table and lifting the first clamping arm, and the invention is based on the pull rod principle, so that the pull rod device can lift the first clamping arm in the process of pushing the sliding table into the mounting seat, so that a clamping bolt can be in threaded connection with the first clamping arm, the action is simplified, the high efficiency of on-rail maintenance and replacement is favorably improved, and the time of on-rail maintenance and replacement is greatly shortened.
2. The invention realizes the relative rotation among a plurality of parts and solves the problem that the parts need to rotate mutually when the device works normally. The pull rod device provided by the invention has the advantages that the mutual rotation between the pull rod and the mounting screw is realized at one end of the pull rod device, and the mutual rotation among the pull rod, the pull rod screw and the pull rod sleeve is realized at the other end of the pull rod device, so that the mutual rolling between the pull rod screw and the bottom clamping arm sliding groove and the mutual rolling between the pull rod sleeve and the mounting seat bulge are realized, and the more stable work of the pull rod device is facilitated.
3. The invention realizes the difference of materials of parts in relative rotation contact and solves the cold welding problem of mutual rotation contact of the same materials. The bearing bush, the washer and the pull rod sleeve are all made of brass materials, the mounting screw, the pull rod nut, the check ring and the pull rod are all made of steel materials, a part with the chute in the bottom clamping arm is made of titanium alloy, a part with a bulge in the mounting seat and a part fixed with the pull rod device in the first clamping arm are made of aluminum alloy materials, all parts with mutual rotation are made of different materials, and the cold welding phenomenon is favorably avoided.
4. The invention realizes the design with simple and compact structure and solves the problem that the added pull rod device can not greatly influence the external dimension of the rolling support component. The invention mainly comprises a pull rod in appearance, and the two ends of the pull rod device are designed to be very compact and small, thereby being beneficial to reducing the size of the pull rod device and reducing the influence of the pull rod device on the appearance size of the rolling support component.
5. The invention adopts a simple working principle, and solves the problems of complex device and low reliability possibly caused by adopting a complex principle. The pull rod principle and the structural design of the related parts are simple, so that the reliability of the device in-orbit application is improved.
6. The invention has the advantages of on-orbit installation of the rolling support assembly, no adverse effect on-orbit work and on-orbit disassembly of the rolling support assembly, and avoids the problem that the first clamping arm cannot rotate anticlockwise. When the rail mounting process is finished, one end of the pull rod device related by the invention is connected with the first clamping arm, and the other end of the pull rod device is separated from the contact with the bulge on the mounting seat, so that a certain distance exists, the pull rod device can freely move left and right, namely the clockwise and anticlockwise rotation required by the operation of the first clamping arm on the rail is not influenced.
Drawings
FIG. 1 is a front elevational view of the overall construction of the rolling support assembly of the present invention;
FIG. 2 is a left side elevational view of the overall construction of the rolling support assembly of the present invention;
FIG. 3A is an isometric view of the drawbar arrangement according to the present invention;
FIG. 3B is a cross-sectional view of the drawbar arrangement according to the invention;
FIG. 4 is a partial enlarged view A of the present invention;
FIG. 5 is a partial enlarged view B of the present invention;
fig. 6 is a schematic diagram of the working process of the present invention.
Detailed Description
The following detailed description is made with reference to the accompanying drawings, which illustrate an embodiment.
Referring to fig. 1 and 2, a pull rod device for on-track maintenance of a rolling support assembly includes a clamping device for clamping a rotating guide rail, the clamping device is disposed on a sliding table 7, the sliding table 7 is slidably connected to a mounting base 1, and the mounting base 1 is mounted on a space station sun-facing directional device; the clamping device comprises a first clamping arm 3, a second clamping arm 4 and a bottom clamping arm 2, the first clamping arm 3 and the second clamping arm 4 are positioned on two sides of the bottom clamping arm 2, the first clamping arm 3, the second clamping arm 4 and the bottom clamping arm 2 are all arranged on a sliding table 7, the first clamping arm 3 can be arranged on the sliding table 7 through a shaft in a rotating mode, and the first clamping arm 3 can rotate around the shaft; both sides of the first clamping arm 3 are rotatably connected with the bottom clamping arm 2 through a pull rod device 6, please refer to fig. 3A and 3B, the pull rod device 6 includes a pull rod 61, one end (i.e. end a) of the pull rod 61 is rotatably connected with the first clamping arm 3, and the other end (i.e. end B) is slidably and rotatably connected with the bottom clamping arm 2; a bulge 11 is arranged on the mounting seat 1, when the rail is mounted, the sliding table 7 slowly slides into the mounting seat 1, a large angle is formed between the first clamping arm 3 and the sliding table 7 and is kept unchanged, when the end B of the pull rod 61 abuts against the bulge 11, the end B slides on the bottom clamping arm 2, the pull rod 61 gradually lifts the first clamping arm 3 along with the continuous sliding of the sliding table 7, and the angle between the first clamping arm 3 and the sliding table 7 is gradually reduced; set up a centre gripping bolt 5 on the first centre gripping arm 3, this centre gripping bolt 5 passes end centre gripping arm 2, and when first centre gripping arm 3 rotated to the relevant position along with slip table 7, centre gripping bolt 5 accessible screw thread fastening's mode and first centre gripping arm 3 fastening connection.
Referring to fig. 4, the end a of the pull rod 61 includes an end a screw 62, an end a washer 63, and an end a bearing bush 64, the end a bearing bush 64 is inserted into the end a hole of the pull rod 61, the end a screw 62 sequentially penetrates through the end a washer 63 and the end a bearing bush 64 from the upper surface side of the pull rod 61 to be fastened and connected to the first clamping arm 3, the end a washer 63 is located on the upper surface side of the pull rod 61, and the end a bearing bush 64 and the pull rod 61 are rotatable with each other. In this embodiment, one end of the a-end bearing bush 64 is a protruding end, the other end is a small end face, the end face diameter of the protruding end is greater than the end face diameter of the small end face, the protruding end is located on the lower surface of the pull rod 61, the outer end face of the protruding end is in surface contact with the first clamping arm 3, the distance from the inner end face of the protruding end to the small end face is greater than the a-end height of the pull rod 61, the pull rod 61 cannot be simultaneously in contact with the protruding end of the a-end bearing bush 64 and the a-end washer 63, and normal rotation between the a-end bearing bush 64 and the pull rod 61 is ensured.
The side surface of the bottom clamping arm 2 is provided with a sliding groove 21, and the end B of the pull rod 61 can slide in the sliding groove 21. The A ends of the two groups of pull rod devices 6 are arranged on the first clamping arm 3, the B ends are arranged in the sliding groove 21 of the bottom clamping arm 2, and the two groups of pull rod devices 6 are symmetrically distributed on two sides of the clamping device.
Referring to fig. 5, the B-end includes a B-end screw 610, a B-end bearing shoe 69, a B-end washer 65, a B-end retainer ring 68, a B-end sleeve 66 and a B-end nut 67, the B-end bearing shoe 69 is embedded into the B-end hole of the pull rod 61, the B-end screw 610 passes through the B-end bearing shoe 69 from the lower surface side of the pull rod 61 and is fastened to the B-end nut 67 on the upper surface side of the pull rod 61, the B-end nut 67 sequentially passes through the B-end sleeve 66 and the B-end retainer ring 65, the B-end washer 65 is located between the B-end retainer ring 68 and the B-end bearing shoe 69, the B-end screw 610 is embedded into the chute 21 of the bottom clamp arm 2, the B-end screw 610 is slidable in the chute 21, the B-end bearing shoe 69 and the pull rod 61 are rotatable, the B-end sleeve 66 and the B-end nut 67 are rotatable, and when the sliding table 7 slides into the mounting base 1, the.
In this embodiment, one end of the B-end bearing pad 69 is a protruding end, the other end is a small end surface, the protruding surface is located on the lower surface of the pull rod 61, the distance from the inner end surface of the protruding end to the small end surface is greater than the B-end height of the pull rod 61, the pull rod 61 cannot simultaneously contact with the protruding end of the B-end bearing pad 69 and the B-end washer 65, and normal mutual rotation between the B-end bearing pad 69 and the pull rod 61 is ensured.
In this embodiment, the terminal surface of B end nut 67 is the ladder face, B end nut 67 includes first step and second step, the diameter of first step is greater than the diameter of second step, first step and the coaxial fixed connection of second step, B end retaining ring 68 cover is established on the second stage, the height that highly is greater than B end retaining ring 68 of second step, pull rod 61 can not contact with the terminal surface of the interior terminal surface of the first step of B end nut 67 and B end retaining ring 68 simultaneously, when the installation of rail, when B end sleeve 66 supported the arch 11 of mount pad 1, ensure that can normally mutual rotation between B end sleeve 66 and the B end nut 67.
In this embodiment, a screw rotating block is fixedly arranged on the first clamping arm 3, a threaded hole adapted to the clamping bolt 5 is formed in the screw rotating block, when the rail is installed, the pull rod 61 lifts the first clamping arm 3 to a corresponding position, and the clamping bolt 5 can be screwed into the threaded hole to fix the first clamping arm 3.
In this embodiment, the sliding table 7 is provided with a guide rail, and the mounting base 1 is provided with a track sliding groove, in which the guide rail can slide. When the rail is installed, the sliding table 7 slides in from one side of the installation base 1.
In this embodiment, the end bushing 64, the end bushing 69, the end washer 63, the end washer 65, and the end sleeve 66 are made of brass, the end screw 62, the end screw 610, the end nut 67, the end retainer 68, and the pull rod 61 are made of steel, the chute 21 of the bottom clamping arm 2 is made of titanium alloy, the protrusion 11 of the mounting seat 1 and the first clamping arm piece fastened to the end screw 62 are made of aluminum alloy, and it is ensured that the parts rotating with each other are made of different materials, which is beneficial to preventing cold welding.
During rail installation, the sliding table 7 is slowly slid in from one side of the installation base 1. Initially, the B-end sleeve 66 of the drawbar arrangement 6 is not in contact with the boss of the mount 1, and the first clamping arm 3 is at a large angle to the skid 7 and remains unchanged. Along with the gradual sliding of the sliding table 7, the B-end sleeve 66 of the pull rod device 6 is in contact with the protrusion of the mounting base 1, the B-end of the pull rod device 6 does not move any more, the a-end pulls the first clamping arm 3 to be gradually lifted, and the angle between the first clamping arm 3 and the sliding table 7 is gradually reduced. When the sliding table 7 completely slides into the mounting seat 1, the pull rod device 6 lifts the first clamping arm 3 to a corresponding position, and at the moment, the clamping bolt 5 can be in threaded connection with the first clamping arm 2; in the rail disassembly mode, the pull rod device 6 does not work and the normal disassembly of the rolling support component is not influenced.
The working principle of the invention is as follows: referring to fig. 6, during the rail mounting process, the sliding table 7 is slowly slid in from one side of the mounting base 1. Initially, the B-end sleeve 66 of the drawbar arrangement 6 is not in contact with the boss of the mount 1, and the first clamping arm 3 is at a large angle to the skid 7 and remains unchanged.
Along with the gradual sliding of the sliding table 7, the B-end sleeve 66 of the pull rod device 6 is in contact with the protrusion of the mounting base 1, at this time, the pull rod 61 and the a-end bearing bush 64 in the a-end of the pull rod device 6 rotate mutually, the pull rod 61 pulls the first clamping arm 3 to be gradually lifted, the B-end of the pull rod device 6 does not move any more, the pull rod 61 and the B-end bearing bush 69 rotate mutually, the B-end sleeve 66 and the B-end nut 67 rotate mutually, and the B-end screw 610 rolls on the inner wall of the sliding groove of the bottom clamping arm 2. In this process, the angle between the first clamp arm 3 and the slide table 7 is gradually reduced, thereby combining the slide-in action of the slide table 7 and the lift-up action of the first clamp arm 3.
When the sliding table 7 completely slides into the mounting base 1, the first clamping arm 3 is lifted to a position required for connecting the clamping bolt 5 with the first clamping arm 3 by the pull rod device 6, and then the clamping bolt 5 is rotated to be in threaded connection with the first clamping arm 2. At this time, the angle between the first clamping arm 3 and the sliding table 7 is further reduced, so that the first clamping arm 3 is finally perpendicular to the plane of the mounting base 1, and the end B of the pull rod device 6 is gradually moved to the right in the process of clamping the clamping bolt 5 and is separated from the protrusion 11 of the mounting base 1.
When the rail works, the end B of the pull rod device 6 can not contact with the bulge 11 of the mounting seat 1, so that the clockwise and anticlockwise rotation required by the normal work of the rolling support component on the rail is not influenced.
The draw bar arrangement 6 is not active during rail dismantling and does not adversely affect the normal dismantling of the rolling support assembly.
The disclosure above is only one specific embodiment of the present application, but the present application is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present application.
Claims (10)
1. A pull rod device convenient for on-track maintenance of a rolling support assembly is characterized in that the rolling support assembly comprises a clamping device, the clamping device is arranged on a sliding table, and the sliding table is connected to an installation seat in a sliding manner; the clamping device comprises a first clamping arm, a second clamping arm and a bottom clamping arm, the first clamping arm and the second clamping arm are positioned on two sides of the bottom clamping arm, and two sides of the first clamping arm are rotatably connected with the bottom clamping arm through a pull rod device; the pull rod device comprises a pull rod, the end A of the pull rod is rotatably connected with the first clamping arm, and the end B of the pull rod is slidably and rotatably connected with the bottom clamping arm; set up an arch on the mount pad, when the rail installation, the slip table to the mount pad slowly slides in, first centre gripping arm with it remains unchanged to be large-angle between the slip table, works as the B end of pull rod supports during the arch, the B end is in slide on the end centre gripping arm, along with the slip table continues to slide, the pull rod will first centre gripping arm is gradually lifted, first centre gripping arm with angle between the slip table diminishes gradually.
2. The track maintenance device of claim 1, wherein the end a of the track includes an end a screw, an end a washer, and an end a bushing, the end a bushing is inserted into the end a hole of the track, the end a screw passes through the end a washer and the end a bushing in sequence to be fastened to the first clamping arm, and the end a bushing and the track are rotatable with respect to each other.
3. The drawbar for facilitating in-track maintenance of a rolling support assembly according to claim 2, wherein the end a bushing has a raised end at one end and a small end at the other end, the raised end being located on the lower surface of the drawbar, the distance from the inner end surface of the raised end to the small end surface being greater than the height of the end a of the drawbar.
4. The pull rod device for facilitating in-track maintenance of a rolling support assembly according to claim 2, wherein a slide groove is provided on a side surface of the bottom clamping arm, and a B end of the pull rod is slidable in the slide groove; the end B comprises an end B screw, an end B bearing bush, an end B gasket, an end B retainer ring, an end B sleeve and an end B nut, the end B bearing bush is embedded into the end B hole of the pull rod, the end B screw penetrates through the end B bearing bush from the lower surface side of the pull rod and is fixedly connected with the end B nut on the upper surface side of the pull rod, the end B nut sequentially penetrates through the end B sleeve and the end B retainer ring, the end B gasket is located between the end B retainer ring and the end B bearing bush, the end B screw is embedded in a sliding groove of the bottom clamping arm, the end B screw can slide in the sliding groove, the end B bearing bush and the pull rod can rotate mutually, the end B sleeve and the end B nut can rotate mutually, and when the sliding table slides into the mounting seat, the end B sleeve can be in contact with a protruding surface of the mounting seat.
5. The drawbar for facilitating in-track maintenance of the rolling support assembly according to claim 4, wherein the B-end bearing pads are raised at one end and small at the other end, the raised end is located on the lower surface of the drawbar, and the distance from the inner end surface of the raised end to the small end surface is greater than the height of the B-end of the drawbar.
6. The pull rod device convenient for on-track maintenance of the rolling support assembly according to claim 4, wherein the end surface of the B-end nut is a stepped surface, the B-end nut comprises a first step section and a second step section, the diameter of the first step section is larger than that of the second step section, the first step section and the second step section are coaxially and fixedly connected, the B-end retainer ring is sleeved on the second step section, and the height of the second step section is larger than that of the B-end retainer ring.
7. The track maintenance pull rod device for the rolling support assembly as claimed in claim 4, wherein the end A bush, the end B bush, the end A washer, the end B washer and the end B sleeve are all made of brass, the end A screw, the end B nut, the end B washer and the pull rod are all made of steel, the chute of the bottom clamping arm is made of titanium alloy, and the protrusion of the mounting seat and the first clamping arm piece fastened with the end A screw are made of aluminum alloy material.
8. The linkage assembly for facilitating in-orbit servicing of a rolling support assembly of claim 1, wherein the clamping assembly further comprises a clamping bolt rotatably disposed on the second clamping arm and the bottom clamping arm, the clamping bolt being threadably secured to the first clamping arm.
9. The pull rod device for on-rail maintenance of a rolling support assembly as claimed in claim 8, wherein a screw rotation block is fixedly disposed on the first clamping arm, a threaded hole adapted to the clamping bolt is disposed on the screw rotation block, and when the rail is installed, the pull rod lifts the first clamping arm to a corresponding position, and the clamping bolt can be screwed into the threaded hole.
10. The pull rod device for facilitating in-track maintenance of a rolling support assembly according to claim 1, wherein the sliding table is provided with a guide rail, and the mounting base is provided with a track sliding groove, wherein the guide rail can slide in the track sliding groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710713738.6A CN107628280B (en) | 2017-08-18 | 2017-08-18 | Pull rod device convenient to rolling supporting component is in orbit maintenance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710713738.6A CN107628280B (en) | 2017-08-18 | 2017-08-18 | Pull rod device convenient to rolling supporting component is in orbit maintenance |
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| Publication Number | Publication Date |
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| CN107628280A CN107628280A (en) | 2018-01-26 |
| CN107628280B true CN107628280B (en) | 2020-02-28 |
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| CN201710713738.6A Active CN107628280B (en) | 2017-08-18 | 2017-08-18 | Pull rod device convenient to rolling supporting component is in orbit maintenance |
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| CN109538613B (en) * | 2018-11-15 | 2020-08-04 | 上海宇航***工程研究所 | Elastic anti-loosening clamping bolt device |
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| US6135391A (en) * | 1999-04-05 | 2000-10-24 | Lockheed Martin Corporation | Retention system for a detachable spacecraft capsule mounted on a spacecraft |
| CN202461893U (en) * | 2011-12-21 | 2012-10-03 | 浙江吉润汽车有限公司 | Overturn tool for clamp |
| CN105350410B (en) * | 2014-08-22 | 2017-02-22 | 中国铁建高新装备股份有限公司 | Track panel lifting device |
| CN205187088U (en) * | 2015-11-24 | 2016-04-27 | 象山商博电子商务有限公司 | Office supplies atress support of holding |
| CN205465494U (en) * | 2016-04-05 | 2016-08-17 | 王华江 | Tight positioner of clamp of sharpening equipment |
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