CN111879190A

CN111879190A - Transfer support vehicle

Info

Publication number: CN111879190A
Application number: CN202010705488.3A
Authority: CN
Inventors: 李永俊; 韩召洋
Original assignee: Lanjian Spaceflight Technology Co ltd
Current assignee: Lanjian Spaceflight Technology Co ltd; Landspace Technology Co Ltd
Priority date: 2018-03-06
Filing date: 2018-03-06
Publication date: 2020-11-03
Also published as: CN108444347A; CN111912304A

Abstract

The invention discloses a transfer support vehicle. This transport support car includes: the device comprises a frame, wheel type structures respectively arranged on two sides of the frame along a first direction, and an adjusting mechanism for connecting the frame and the wheel type structures; the adjusting mechanism comprises an adjusting part and a moving part, one end of the moving part is connected with the adjusting part, and the other end of the moving part is connected with the wheel type structure; the adjusting part is used for adjusting the moving part to move along the first direction relative to the frame, so that the wheel type structures are driven to move away from or close to each other along the first direction. The embodiment of the invention provides a transfer support vehicle, and the distance between wheel-type structures arranged on two sides of a vehicle frame can be conveniently adjusted by arranging an adjusting mechanism, so that the application occasions of the support vehicle are improved.

Description

Transfer support vehicle

The application is a divisional application of an invention patent with the application number of 201810184975.2, which is filed on 3, 6 and 3 months in 2018 and is named as a bracket vehicle.

Technical Field

The invention relates to the technical field of spacecraft equipment transportation, in particular to a support vehicle for transportation.

Background

Typically, docking of small spacecraft horizontally in a final assembly plant requires accommodation to the ground for a wide and narrow rail gauge (typically 750 mm). After the spacecraft is transported to the launch technology area building, horizontal docking requires accommodation to a wide gauge (typically 1435mm) on the ground. At present, an iron wheel support vehicle adopted by a factory building for transferring a spacecraft can only adapt to a wide standard gauge generally, and the use requirement of a small spacecraft cannot be met.

Therefore, in order to facilitate operations such as transportation, parking and storage of the small spacecraft, a transportation support vehicle with convenient operation and strong adaptability is urgently needed.

Disclosure of Invention

In view of the above technical problems in the related art, the present invention provides a transfer carriage vehicle, which can dynamically adjust the distance between the wheel structures of the carriage vehicle, thereby facilitating operations such as parking, transferring, and storing of a spacecraft.

One aspect of the invention provides a transfer carriage. This support car includes: the device comprises a frame, wheel type structures respectively arranged on two sides of the frame along a first direction, and an adjusting mechanism for connecting the frame and the wheel type structures; the adjusting mechanism comprises an adjusting part and a moving part, one end of the moving part is connected with the adjusting part, and the other end of the moving part is connected with the wheel type structure; the adjusting part is used for adjusting the moving part to move along the first direction relative to the frame, so that the wheel type structures are driven to move away from or close to each other along the first direction.

In one embodiment, the adjustment mechanism further comprises a transmission member, the adjustment portion comprises an adjustment wheel, and the moving portion comprises a telescopic member; the adjusting wheel drives the telescopic piece to stretch along the first direction through the transmission piece so as to drive the wheel type structure to be far away from or close to each other along the first direction.

In one embodiment, the transmission comprises a worm and worm wheel-nut combination; the telescopic piece comprises a screw and a telescopic arm; the worm is fixedly connected with the adjusting wheel, the worm vertically contacts with the side face of a turbine in the turbine-nut combination, the screw is in threaded connection with the nut in the turbine-nut combination, one end of the telescopic arm is connected with the screw, and the other end of the telescopic arm is fixedly connected with the wheel type structure; when the adjusting wheel rotates, the worm rotates along with the adjusting wheel in the same direction, the worm transmits rotating force to the turbine-nut combination, so that the turbine-nut combination rotates in a plane perpendicular to the rotating plane of the worm, and the screwing degree of the turbine-nut combination and the screw is adjusted, so that the screw drives the telescopic arm to move in the first direction.

In one embodiment, the telescopic arm and the frame are connected with each other through a sliding pair, so that when the screw rod moves, the telescopic arm is driven to slide relative to the frame.

In some of the above embodiments, the adjusting mechanism includes a first adjusting mechanism and a second adjusting mechanism, and the first adjusting mechanism and the second adjusting mechanism are respectively used for independently adjusting the stroke of the wheel structures arranged on the two sides of the frame in the first direction.

In one embodiment, the stroke is in the range of 300mm-400 mm.

In some of the above embodiments, the rack truck further comprises a support mechanism and a lifting mechanism; the supporting mechanism is connected to the frame through the lifting mechanism and is used for supporting an object to be supported.

In one embodiment, the support mechanism further comprises a mount and a traversing mechanism; one side of the fixing piece is fixedly arranged on the side, far away from the frame, of the lifting mechanism, and the other side of the lifting mechanism is fixedly connected with the frame; the fixing piece is far away from the lifting mechanism side is provided with a sliding rail, and the transverse moving mechanism is arranged on the fixing piece in a sliding mode through the sliding rail.

In one embodiment, the fixing member comprises a first portion for fixed connection with the lifting mechanism and a second portion for cooperation with the traversing mechanism; the transverse moving mechanism comprises a transverse moving body part, a first adjusting wheel and a first screw connector; the first adjusting wheel and the transverse moving body part are respectively arranged at two sides of the second part, the transverse moving body part is slidably arranged on the fixing part through the sliding rail, the first screw connector penetrates through the second part, two ends of the first screw connector are respectively connected with the transverse moving body part and the first adjusting wheel, and at least one end of the first screw connector is in screw connection with at least one of the transverse moving body part and the first adjusting wheel; when the first adjusting wheel rotates, the first screw connector and at least one of the transverse moving body part and the first adjusting wheel form a thread relative motion so as to drive the transverse moving body part to move along the sliding rail.

In one embodiment, the first screw member comprises a bolt, and both ends of the bolt are provided with threads and are respectively screwed with the transverse moving body part and the first adjusting wheel.

In one embodiment, the slide rail is disposed along the first direction.

In one embodiment, the support structure further comprises a roll mechanism; the side of the transverse moving mechanism, which is far away from the frame, is provided with an arc-shaped guide rail, and the rolling mechanism is arranged on the arc-shaped guide rail.

In one embodiment, the rolling mechanism comprises a bracket, a second adjusting wheel and a second screw, and the transverse moving mechanism comprises a transverse moving body part and a fixing part connected with the transverse moving body part; the transverse moving body part is movably arranged on the fixing part through the slide rail, and the fixing part protrudes to one side far away from the frame; the bracket and the second adjusting wheel are respectively arranged on two sides of the fixing part, the second screw connector penetrates through the fixing part, and at least one end of the second screw connector is in screw connection with at least one of the bracket and the second adjusting wheel; when the second adjusting wheel rotates, the second screw connector is driven to rotate, so that the second screw connector, at least one of the second adjusting wheel and the bracket form relative movement of threads, and the bracket moves along the arc-shaped guide rail.

The transfer support vehicle provided by the embodiment of the invention can conveniently adjust the distance between the wheel type structures arranged on the two sides of the vehicle frame, thereby improving the applicability of the support vehicle.

Those skilled in the art will recognize additional features and advantages upon reading the detailed description, and upon viewing the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural view of a rack truck according to an embodiment of the present invention.

Fig. 2a is a schematic top view of a rack truck according to an embodiment of the present invention.

Fig. 2b is a schematic cross-sectional view of fig. 2a in the direction a-a.

FIG. 2c is a schematic view of a rotational plane of an adjustment wheel and turbine-nut combination according to an embodiment of the present invention.

Fig. 3 is a schematic structural view of a rack truck according to an embodiment of the present invention.

Fig. 4a and 4b are schematic mechanism diagrams of a support vehicle comprising a framework, a rolling wheel, a telescopic arm and a vehicle frame according to an embodiment of the invention.

Fig. 5a, 5b and 6 are schematic views of a gantry vehicle including a lift mechanism and a support structure according to an embodiment of the present invention.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings. Spatially relative terms such as "below," "… below," "lower," "above," "… above," "upper," and the like are used for convenience in describing the positioning of one element relative to a second element and are intended to encompass different orientations of the device in addition to different orientations than those illustrated in the figures. Further, for example, the phrase "one element is over/under another element" may mean that the two elements are in direct contact, or that there is another element between the two elements. Furthermore, terms such as "first", "second", and the like, are also used to describe various elements, regions, sections, etc. and should not be taken as limiting. Like terms refer to like elements throughout the description.

One aspect of the invention provides a support vehicle for spacecraft transfer. Referring to fig. 1, the rack cart includes: the vehicle body frame 1, the wheel structure 2 provided on both sides of the vehicle body frame in the first direction S0, and the adjustment mechanism 3 connecting the vehicle body frame 1 and the wheel structure 2. The adjusting mechanism 3 comprises an adjusting part 31 and a moving part 32, one end of the moving part 32 is connected with the adjusting part 31, and the other end is connected with the wheel type structure 2; the adjusting portion 31 is used for adjusting the moving portion 32 to move along the first direction relative to the frame 1, so as to drive the wheel structures 2 to move away from or close to each other along the first direction S0. According to the support vehicle provided by the embodiment of the invention, the distance between the wheel-type structures arranged on the two sides of the vehicle frame can be adjusted by arranging the adjusting mechanism, so that the support vehicle can be better suitable for transfer tracks with different widths.

The wheeled structure 2 may for example comprise a roller wheel. For example, the rolling wheel may include both ferrous wheels, other metallic wheels, or non-metallic wheels, or the rolling wheel may include both metallic and non-metallic materials. For example, the rollers may include rubber tires and a centrally located metal hub. The wheel structure 2 of the embodiment of the present invention is intended to drive the carriage in a rolling manner, and therefore, the structure, material, and composition thereof are not limited.

For example, the wheeled structure 2 may also comprise a skeleton for fixing the wheels, so that the wheels may be mounted to the skeleton, for example. For example, the frame may be connected to the moving portion 32 of the adjustment mechanism 3. In this case, by adjusting the adjusting part 31, the moving part 32 may be moved in the first direction S0, so that the moving part 32 may bring the framework into motion in the first direction S0. Likewise, when the frame moves in the first direction S0, the rolling wheels fixedly connected to the frame may move along with the frame in the first direction S0, thereby achieving distance adjustment between the rolling wheels located at both sides of the frame 2.

Further, with continued reference to fig. 1, for example, the first direction S0 may be, for example, a direction substantially corresponding to a line connecting two of the rollers provided on both sides of the vehicle frame, and may also be substantially corresponding to a width direction of the vehicle frame (for example, the width direction of the vehicle frame may be a direction perpendicular to a forward direction of the truck in the same horizontal plane). In addition, the rolling wheels can be arranged on two sides of the frame in multiple pairs. For example, the two sides of the frame can be correspondingly provided with 1-6 pairs, so that different cargoes can be accommodated. In order to improve the motion stability of the frame 1, for example, the rolling wheels on both sides of the frame may be disposed in axial symmetry with respect to the central axis of the frame (for example, the central axis of the frame refers to a line connecting the midpoints of the frame in the width direction in the same horizontal plane).

In one embodiment, for example, the adjustment mechanism may include two, i.e., a first adjustment mechanism and a second adjustment mechanism, such that each adjustment mechanism may independently adjust the wheeled structure located on one side of the frame. For example, as shown in fig. 1, a frame of the wheel structure located on the same side of the frame 1 may be provided with a roller at each of the front and rear ends in the moving direction of the rack vehicle, and the middle portion of the frame may be connected to one end of the moving portion (e.g., the outer side of the moving portion) of the first adjusting mechanism, so that the frame may be driven to move along the first direction by adjusting the adjusting portion of the first adjusting mechanism. Likewise, a second adjustment mechanism may be used to adjust the movement of the wheeled structure on the other side of the frame 1 in the first direction. In the case of a wheeled structure comprising wheels and frames, for example, the number of adjustment mechanisms may be equal to the number of frames, so that the wheels connected to each frame may be adjusted relatively independently, thereby increasing the flexibility of distance adjustment of the wheeled structure.

In one embodiment, the adjustment travel of the wheel structure on one side of the carriage is in the range of 300mm-800mm, so that the adjustment distance of the wheel structure of the carriage can be 600-1600 mm. Typical ground transit track gauges include 750mm gauge and 1435mm gauge. Of course, the carriage of embodiments of the present invention may accommodate track gauges of other widths within the range of 750mm to 1450 mm. For example, the widths of the gauges may include 762mm, 891mm, 1000mm, 1067mm, 1372mm, and the like. According to the support vehicle provided by the embodiment of the invention, the distance between the wheel structures on the two sides of the vehicle can be adjusted in a large range, so that the adaptability of the support vehicle can be greatly improved.

Referring to fig. 2a-2c, in one embodiment, the adjustment mechanism 3 further comprises a transmission. The adjusting portion 31 includes an adjusting wheel 301, and the moving portion 32 includes a telescopic member. The adjusting wheel 301 drives the telescopic member to extend and retract along the first direction through the transmission member, so as to drive the wheel structures 2 to move away from or close to each other along the first direction. For example, as shown in fig. 2a, the adjusting portion 31 may include a hand wheel 301, such that by rotation of the hand wheel 301, the rotation of the hand wheel 301 is converted into a telescopic movement of a telescopic member via a transmission member, so as to drive the framework and a rolling wheel (e.g., the rolling wheel may be fixedly connected to the framework) provided on the framework to move in a first direction.

With continued reference to fig. 2a-2c, in the above-described embodiment, for example, the transmission comprises a worm 302 and worm wheel-nut 303 combination, and the telescoping member comprises a threaded rod 304 and a telescoping arm 305. The worm 302 is fixedly connected with the adjusting wheel 301, so that when the adjusting wheel 301 rotates, the worm 302 can rotate together with the adjusting wheel 301. The worm 302 may vertically contact the side of the worm gear in the worm gear-nut combination 303 to impart rotation of the worm 302 to the worm gear, causing the worm gear to rotate in a plane S2 that is substantially perpendicular to the plane S1 in which the worm 302 rotates. As shown in fig. 2c, the turbine rotation plane S2 is substantially perpendicular to the first direction, i.e. the turbine rotation axis substantially coincides with the first direction S0. The nut and the turbine are in threaded connection or fixed connection, so that the rotation axes of the nut and the turbine are the same, and the nut can rotate together with the turbine.

As shown in fig. 2a-2c, for example, one end of the screw 304 is screwed with the nut in the turbine-nut combination 303, the other end is connected with one end of the telescopic arm 305, and the other end of the telescopic arm 305 is fixedly connected with the wheel structure 2. When the adjustment wheel 301 rotates, the worm 302 can rotate along with the adjustment wheel 301, and since the worm 302 contacts the side surface of the worm wheel, the worm 302 can transmit the rotating force to the worm wheel-nut combination 303, so that the worm wheel-nut combination 303 rotates in a plane S2 (for example, the plane is perpendicular to the first direction) perpendicular to the rotation plane S1 of the worm 302, thereby adjusting the screwing degree of the worm wheel-nut combination 303 and the screw 304 into each other, so that the screw 304 drives the telescopic arm 305 to move along the first direction S0.

According to the transmission part provided by the embodiment of the invention, the worm 302, the turbine-nut combination 303 and the screw 304 are arranged, so that the rotation of the adjusting wheel 301 can be effectively transmitted to the telescopic part, the telescopic part can move in the first direction to drive the wheel type structure 2 to move in the first direction, and the adjustment of the distance between the rolling wheels of the wheel type structure 2 is realized to adapt to different track gauges. In addition, the transmission part of the embodiment of the invention can convert the adjustment of the adjusting wheel into the movement of the telescopic part in the first direction continuously, so that the continuous adjustment of the distance between the wheel structures positioned at two sides of the frame can be realized, the support vehicle can adapt to any track gauge in the travel range of the wheel structures, and the adaptability of the support vehicle is greatly improved.

Referring to fig. 3, in one embodiment, the telescopic arm 305 and the frame 1 are connected to each other by a sliding pair, so that when the screw 304 moves, the telescopic arm 305 slides relative to the frame 1. For example, as shown in fig. 3, the frame 1 may include a hollow structure extending in a first direction, and the two telescopic arms 305 may be similar in shape and size to the hollow structure (e.g., the cross-section of the telescopic arms is rectangular as shown in fig. 3). For example, the dimensions of the hollow structure of the frame 1 may be slightly larger than the outer dimensions of the two telescopic arms 305, so that the two telescopic arms 305 may be arranged inside the hollow structure. For example, as shown in fig. 3, the two telescopic arms 305 may be connected with the inner wall of the hollow structure of the frame 1 through a sliding pair, so that the two telescopic arms 305 may slide relative to the inner wall of the frame 1 when, for example, a force in a first direction is applied.

In this embodiment, the sliding pair may include, for example, a sliding rail disposed on an inner wall of the frame 1, and the telescopic arm 305 may be disposed on the sliding rail directly or indirectly through a sliding member (the sliding member may be, for example, a ball or a roller). For example, the slide rail may further include a sliding slot structure, and one side of the telescopic arm 305 may be a sheet structure, so that when the telescopic arm 305 receives an external force, the telescopic arm 305 may move in the sliding slot through the sheet structure thereof, thereby realizing a movement relative to the frame 1. The sliding of the telescopic arm 305 in the sliding track in this embodiment is not so sensitive as to prevent accidental sliding between the frame 1 and the wheeled structure 2.

As will be appreciated by those skilled in the art, the sliding pair of the embodiment of the present invention may be any conventional sliding structure, and any structure that can realize the relative sliding between the frame and the telescopic arm under the action of an external force may be adopted.

In addition, the frame 1 may be provided with a locking structure. For example, after the telescopic arm 305 moves to a desired position along a slide rail and the adjustment of the distance between the wheeled structures 2 is completed, the telescopic arm 305 and the frame 1 can be fixed by the locking structure, so that the telescopic arm 305 is prevented from moving after being subjected to an external force, and the distance between the wheeled structures 2 is prevented from being changed unexpectedly. Specifically, the locking structure may include a plurality of locking hooks disposed on the telescopic arm 305 side by side along the first direction, and the frame 1 or the sliding rail is provided with a plurality of locking holes corresponding to the locking hooks. When the telescopic arm 305 moves to a desired position in a first direction, the locking hook can be locked into the corresponding locking hole, so that the telescopic arm 305 is locked relative to the frame 1. It will be appreciated that the location of the keyhole in the vehicle frame 1 should be set according to conventional gauge dimensions. That is, after the locking hooks are locked into the locking holes, the distance between the wheel structures 2 should correspond to various common track gauges. By arranging the locking structure, the embodiment of the invention can ensure that the support vehicle can more stably support, transport or store the spacecraft or similar products after the distance of the wheel type structure 1 of the support vehicle is adjusted, avoid the accidental movement of the telescopic arm 305 and improve the reliability of the support vehicle.

Referring to fig. 4a, in some embodiments described above, for example, as previously described, the wheeled structure 2 may include a skeleton 201, and two wheels 202 may be provided per skeleton 201. For example, the frame 201 may include a middle portion 2011, a first bent portion 2012 extending from both ends of the middle portion 2011 toward the frame 1, and a second bent portion 2013 extending substantially perpendicular to the first bent portion 2012 and in a direction away from the telescopic arm 305. The two first bent portions 2012 extend from two sides of the middle portion 2011 to the frame 1, so that the inner wall of the middle portion 2011 and the inner walls of the two first bent portions 2012 on the same side form a space together, and the side of the telescopic arm 305 away from the frame 1 may be fixedly connected to the inner wall of the middle portion 2011 and/or the inner walls of the two first bent portions 2012, for example. Referring to fig. 4b, preferably, the inner walls of the two first bent parts 2012 may have a gap T0 with the telescopic arm 305. For example, the gap T0 may be larger than the thickness T1 of the portion of the frame 1 with the same side as the telescopic arm 305, so as to increase the telescopic stroke of the telescopic arm 305 in the frame 1 and improve the wheel track adjustment range of the support vehicle. That is, the gap T0 can accommodate the thickness T1 of the hollow member as the telescoping arm 305 moves within the hollow structure of the frame 1, thereby increasing the distance the telescoping arm moves within the frame hollow structure.

In this embodiment, for example, two casters 202 located on the same side of the frame 1 may be correspondingly disposed on the two second bent portions 2013 of the frame 201, so as to further improve the stability of the frame vehicle.

Referring to fig. 5a, in some embodiments described above, the rack truck further includes a support mechanism 5 and a lift mechanism 4. Wherein the supporting mechanism 5 is connected to the frame 1 through the lifting mechanism 4, and the supporting mechanism 5 is used for supporting an object to be supported. For example, the object to be supported may be a spacecraft or other similar product. For example, as shown in fig. 5, the lifting mechanism 4 may be composed of two sets of nut screw mechanisms. One end of the nut-screw mechanism can be fixed on one side of the frame 1, and the other end can be connected with the supporting structure 5. So that when it is necessary to adjust the height of the support structure 5, the depth of the mutual screwing between the nut 41 and the threaded spindle 42 can be varied, so as to raise or lower the support structure 5. In addition, the nut-and-screw arrangement may be arranged uniformly between the support structure 5 and the frame 1, for example in 2-8 sets. Thereby better ensuring the stability of the support structure.

In this embodiment, the lifting mechanism 4 may also be a hydraulic cylinder, a pneumatic cylinder, a jack, or the like, for example.

In one embodiment, the support mechanism 5 further comprises a mount 51 and a traversing mechanism 52. One side of the fixing member 51 is fixedly arranged on the side of the lifting mechanism 4 far away from the frame 1, and the other side of the lifting mechanism 4 is fixedly connected with the frame 1. A slide rail is provided on the side of the fixed member 51 remote from the elevating mechanism 4, and the traverse mechanism 52 is slidably provided on the fixed member 51 via the slide rail. The embodiment of the invention can enable the supporting mechanism to transversely move the support by arranging the transverse moving mechanism, thereby improving the flexibility of transportation, transfer and storage of the spacecraft.

Referring to fig. 5b, in this embodiment, for example, the fixing member 51 may include a main body portion 511 and an edge portion 512. For example, the main body 511 may have an elongated structure. Specifically, the structure may be a rectangular parallelepiped. Further, the length and width of the cross section of the rectangular parallelepiped may be substantially equal, for example, a cube. When the main body portion 511 of the mount 51 is a rectangular parallelepiped, for example, the longitudinal direction of the main body portion 511 of the mount 51 may substantially coincide with the first direction, for example. The edge portion 512 may protrude from one end of the rectangular parallelepiped in a direction away from the vehicle body frame 1. The side of the main body 511 close to the frame 1 is fixedly connected with the side of the lifting mechanism 4 far from the frame 1, and the edge 512 is used for matching with the transverse moving mechanism 52. Specifically, a slide rail is provided on a side of the main body 511 away from the frame 1. The traverse mechanism 52 includes a traverse body portion 521, a first adjustment wheel 522, and a first screw 523. The traverse body 521 is provided to the body 511 of the fixed member 51 by a slide rail, and the first adjustment wheel 522 and the first screw 523 are provided on both sides of the edge 512. The two ends of the first screw 523 are respectively connected to the traverse body 521 and the first adjusting wheel 522. For example, the edge portion 512 may include an opening in the first direction S0 (e.g., the opening may be slightly larger than an outer dimension of the first screw) such that the first screw 522 may pass through the opening and have at least one end threadably coupled to at least one of the traversing body portion 521 and the first adjustment wheel 522. Therefore, by rotating the first adjusting wheel 522, the screwing distance between the first screw member 523 and at least one of the traverse body portion 521 can be changed, that is, by rotating the first adjusting wheel 522, the first screw member 523 and at least one of the traverse body portion 521 and the first adjusting wheel 522 form a relative threaded motion, so as to drive the traverse body portion 521 to move transversely along the slide rail of the fixing member 51.

In one embodiment, the first screw 523 includes a bolt having threads at both ends and being respectively screwed with the traverse body portion 521 and the first adjustment wheel 522. According to the embodiment of the invention, the two ends of the first screw joint are respectively screwed with the transverse moving body part 521 and the first adjusting wheel 522, so that the moving speed and distance of the transverse moving body part 521 of the transverse moving mechanism on the sliding rail can be increased, and the adjustment of the transverse moving mechanism is more convenient.

Referring to fig. 6, in one embodiment, support structure 5 further comprises a roll-over mechanism 53; the side of the transverse moving mechanism 52 far away from the frame 1 is provided with an arc-shaped guide rail, and the rolling mechanism 53 is arranged on the arc-shaped guide rail. For example, when the product to be supported is placed on the support structure, the rotation of the product to be supported, for example, a spacecraft, with respect to the axis thereof can be achieved by the rolling motion of the rolling mechanism 53 on the arc-shaped orbit, thereby facilitating the relevant operation of the spacecraft.

With continued reference to FIG. 6, in one embodiment, the roll mechanism 53 includes an arcuate bracket 531, a second adjustment wheel 532, and a second threaded member 533. The traverse mechanism 52 includes a traverse body portion 521 and a fixing portion 524 connecting the body portion 521. For example, the side of the traversing body portion 521 remote from the frame 1 includes an arc-shaped structure matching the outer arc surface of the arc-shaped bracket 531. For example, the arcuate structural portion may be provided with an arcuate slide, such that the arcuate bracket 531 is slidably disposed on the slide. As described above, the traverse body portion 521 of the traverse mechanism 52 is movably provided to the mount 51 by the slide rail, and the fixing portions 524 provided at both ends of the traverse mechanism 52 protrude to the side away from the vehicle frame 1. For example, the two fixing portions 524 may be disposed in a radial direction of an intrados surface of the arc structure. For example, the arc bracket 531 is disposed between the two fixing portions 524, and the two second adjustment wheels 532 are disposed outside the fixing portions 524, respectively. For example, the second screw members 533 are two, and one of the screw members 533 is screwed through one of the fixing portions 524, and both ends thereof are respectively connected to one of the second adjusting wheels 532 and one end portion of the arc bracket 531 in the arc direction thereof, and the other screw member 533 is screwed through the other fixing portion 524, and both ends thereof are respectively connected to the other of the second adjusting wheels 532 and the other end portion of the arc bracket 531. For example, when the second adjusting wheels 532 disposed at two ends are rotated, the second screw-connecting members 533 at two sides can be respectively driven to rotate, so that the second screw-connecting members 533 and at least one of the second adjusting wheels 532 and the bracket 531 form a relative movement with a screw thread, so as to drive the arc-shaped bracket 531 to move along the arc-shaped guide rail.

According to the rolling mechanism 53 provided by the embodiment of the invention, the arc-shaped bracket 531 is arranged on the arc-shaped guide rail on the side of the transverse moving mechanism 52 far away from the frame 1, and the screwed piece and the adjusting wheel are arranged at two ends of the arc-shaped bracket 531, so that the arc-shaped bracket 531 can be ensured to do arc motion along the arc-shaped guide rail when the adjusting wheel is adjusted. In addition, the fixed part 524 that is located the pitch arc both ends of arc structure is located the radial of arc structure intrados, consequently, when can guaranteeing to adjust regulating wheel 532, the atress of arc bracket and arc structure is along the direction of arc slide rail to improve the reliability of roll mechanism 53, avoid the guide rail that fixed part 524 or arc bracket 531 or sideslip mechanism set up to be damaged because of the atress, improved bearing structure's life.

The support vehicle provided by the embodiment of the invention can conveniently adjust the distance between the wheel type structures arranged on the two sides of the vehicle frame, thereby improving the application occasions of the support vehicle.

The above-described embodiments of the present invention may be combined with each other with corresponding technical effects.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A transfer carriage, comprising:

the device comprises a frame, wheel type structures respectively arranged on two sides of the frame along a first direction, and an adjusting mechanism for connecting the frame and the wheel type structures;

the adjusting mechanism comprises an adjusting part and a moving part, the adjusting part comprises an adjusting wheel, the moving part comprises a telescopic piece, one end of the moving part is connected with the adjusting part, and the other end of the moving part is connected with the wheel type structure; the adjusting mechanism further comprises a transmission piece, and the adjusting wheel drives the telescopic piece to extend and retract along the first direction through the transmission piece so as to drive the wheel type structures to move away from or close to each other along the first direction;

the transmission part comprises a worm and a worm wheel-nut combination; the telescopic piece comprises a screw and a telescopic arm; the worm is fixedly connected with the adjusting wheel, the worm vertically contacts with the side face of a turbine in the turbine-nut combination, the screw is in threaded connection with the nut in the turbine-nut combination, one end of the telescopic arm is connected with the screw, and the other end of the telescopic arm is fixedly connected with the wheel type structure;

when the adjusting wheel rotates, the worm rotates along with the adjusting wheel in the same direction, the worm transmits rotating force to the turbine-nut combination, so that the turbine-nut combination rotates in a plane perpendicular to the rotating plane of the worm, and the screwing degree of the turbine-nut combination and the screw is adjusted, so that the screw drives the telescopic arm to move in the first direction.

2. A transfer carriage as claimed in claim 1 wherein the telescopic arm and the frame are connected to each other by a sliding pair to slide the telescopic arm relative to the frame upon movement of the screw.

3. A transfer carriage according to claim 1 or 2, wherein the adjustment mechanism comprises a first adjustment mechanism and a second adjustment mechanism, each for independently adjusting the travel of wheeled structures provided on either side of the frame in the first direction.

4. A transfer carriage according to any of claims 1-3 further comprising a support mechanism and a lifting mechanism; the supporting mechanism is connected to the frame through the lifting mechanism and is used for supporting an object to be supported.

5. The transfer rack cart of claim 4, wherein the support mechanism further comprises a fixture and a traversing mechanism; one side of the fixing piece is fixedly arranged on the side, far away from the frame, of the lifting mechanism, and the other side of the lifting mechanism is fixedly connected with the frame; the fixing piece is far away from the lifting mechanism side is provided with a sliding rail, and the transverse moving mechanism is arranged on the fixing piece in a sliding mode through the sliding rail.

6. A transfer carriage as claimed in claim 5 wherein the fixed member comprises a first portion for fixed connection with the lifting mechanism and a second portion for cooperating with the traversing mechanism; the transverse moving mechanism comprises a transverse moving body part, a first adjusting wheel and a first screw connector;

the first adjusting wheel and the transverse moving body part are respectively arranged at two sides of the second part, the transverse moving body part is slidably arranged on the fixing part through the sliding rail, the first screw connector penetrates through the second part, two ends of the first screw connector are respectively connected with the transverse moving body part and the first adjusting wheel, and at least one end of the first screw connector is in screw connection with at least one of the transverse moving body part and the first adjusting wheel;

when the first adjusting wheel rotates, the first screw connector and at least one of the transverse moving body part and the first adjusting wheel form a thread relative motion so as to drive the transverse moving body part to move along the sliding rail.

7. A transfer carriage as claimed in claim 6 wherein the first threaded member comprises a bolt threaded at both ends and threaded with the traversing body portion and the first adjustment wheel respectively.

8. A transfer carriage according to claim 5 wherein the slide is disposed along the first direction.

9. A transfer carriage as claimed in claim 5 wherein the support structure further comprises a rolling mechanism;

the side of the transverse moving mechanism, which is far away from the frame, is provided with an arc-shaped guide rail, and the rolling mechanism is arranged on the arc-shaped guide rail.

10. The transfer rack cart of claim 9, wherein the rolling mechanism comprises a carriage, a second adjustment wheel, and a second threaded member, the traversing mechanism comprising a traversing body portion and a securing portion connecting the traversing body portion; the transverse moving body part is movably arranged on the fixing part through the slide rail, and the fixing part protrudes to the side far away from the frame; the bracket and the second adjusting wheel are respectively arranged on two sides of the fixing part, the second screw connector penetrates through the fixing part, and at least one end of the second screw connector is in screw connection with at least one of the bracket and the second adjusting wheel;

when the second adjusting wheel rotates, the second screw connector is driven to rotate, so that the second screw connector, at least one of the second adjusting wheel and the bracket form relative movement of threads, and the bracket moves along the arc-shaped guide rail.