CN112061980B

CN112061980B - Erecting device and crane for rocket erecting

Info

Publication number: CN112061980B
Application number: CN202010798437.XA
Authority: CN
Inventors: 王永刚; 吴雪
Original assignee: Lanjian Spaceflight Technology Co ltd
Current assignee: Lanjian Spaceflight Technology Co ltd
Priority date: 2018-03-28
Filing date: 2018-03-28
Publication date: 2022-05-13
Anticipated expiration: 2038-03-28
Also published as: CN112062061B; CN108502727B; CN112062061A; CN108502727A; CN112061980A

Abstract

The invention discloses a erecting device and a crane. The erecting device comprises: the device comprises a main body part, a first supporting part arranged on the main body part, at least two second supporting parts and an adjusting mechanism connected with the at least two second supporting parts; wherein the body portion includes first and second sides opposite to each other in a first direction; the first supporting part and the at least two second supporting parts are arranged on the first side; the at least two second supporting parts are arranged along a second direction of the length of the main body part, and the first supporting part and the at least two second supporting parts are used for supporting an object to be supported; the adjusting mechanism is used for dynamically adjusting the load distribution of the at least two second supporting parts according to the change of the load applied by the object to be supported on the at least two second supporting parts. The erecting device and the erecting crane can dynamically adjust load distribution according to stress changes of the supporting shell, so that the safety of products in the erecting process is greatly improved.

Description

Erecting device and crane for rocket erecting

The application is a divisional application of an invention patent with the application number of 201810264152.0, which is filed on 28.3.2018 and is named as a vertical lifting device and a crane.

Technical Field

The invention relates to the technical field of product erection, in particular to an erecting device and an erecting crane for rocket erection.

Background

Since the launch vehicle or a product having a similar shape has a large slenderness ratio, the axial pressure changes greatly during erection. The allowable surface pressure of the shell of the product with a large slenderness ratio is often strict, namely, the stress of the shell cannot exceed the allowable surface pressure value.

The existing carrier rockets of the same type are erected integrally by adopting a two-point main support erecting mode, and the stress requirement of a shell is not met. When the supporting mode of three points or more is adopted, the mode of two main supports and a plurality of auxiliary supports is adopted. In order to prevent the rocket case from being damaged due to uneven axial stress in the erecting process, the rigidity of the erecting arm is increased to compensate, so that the mass of the erecting arm is increased.

It is highly desirable to design a new erecting arm to meet the erecting requirements of such products with a structure having a large slenderness ratio.

Disclosure of Invention

In order to solve the technical problems in the prior art, the invention provides a erecting device and a crane for erecting a rocket. The supporting and erecting device can dynamically adjust load distribution according to stress changes of the supporting shell, so that the safety of products in the erecting process is greatly improved.

One aspect of the present invention provides a erecting device for erecting a rocket. This erecting device includes: the device comprises a main body part, a first supporting part arranged on the main body part, at least two second supporting parts and an adjusting mechanism connected with the at least two second supporting parts; wherein the body portion includes first and second sides opposite to each other in a first direction; the first supporting part and the at least two second supporting parts are arranged on the first side; the at least two second supporting parts are arranged along a second direction of the length of the main body part, and the first supporting part and the at least two second supporting parts are used for supporting an object to be supported; the adjusting mechanism is used for dynamically adjusting the load distribution of the at least two second supporting parts according to the change of the load applied by the object to be supported on the at least two second supporting parts.

In one embodiment, the adjustment mechanism is a hydraulic system or a pneumatic system.

In one embodiment, the adjustment mechanism is a hydraulic system; the hydraulic system comprises a first hydraulic oil cylinder and a second hydraulic oil cylinder; one end of the first hydraulic oil cylinder is connected with one of the second supporting parts, and the other end of the first hydraulic oil cylinder is connected with a first valve; one end of the second hydraulic oil cylinder is connected with the other second supporting part, and the other end of the second hydraulic oil cylinder is connected with the first valve; the positive cavities of the first oil cylinder and the second oil cylinder are communicated through a positive cavity pipeline to form a positive cavity isobaric system, and the negative cavities of the first oil cylinder and the second oil cylinder are communicated through a negative cavity pipeline to form a negative cavity isobaric system; the first valve is used for adjusting the oil quantity and the oil level of the first oil cylinder and the second oil cylinder.

In one embodiment, the erecting device comprises: the hydraulic system comprises a plurality of oil cylinders which correspond to the second supporting parts one by one respectively; the second supporting parts are respectively connected with one end of the corresponding oil cylinder, and the other end of the oil cylinder is connected to the first valve; the positive cavities of the oil cylinders are communicated through positive cavity pipelines to form a positive cavity isobaric system, and the negative cavities are communicated through negative cavity pipelines to form a negative cavity isobaric system; the first valve is used for adjusting the oil quantity and the oil level of the first oil cylinder and the second oil cylinder.

In one embodiment, in the second direction along the length of the main body, the cross-sectional area of the cylinder corresponding to the second support portion close to the first support portion is smaller than or equal to the cross-sectional area of the cylinder corresponding to the second support portion far from the first support portion.

In one embodiment, in the second direction along the length of the main body, the cross-sectional areas of the oil cylinders respectively corresponding to the second supporting parts sequentially arranged from the position close to the first supporting part to the position far away from the first supporting part sequentially increase.

In one embodiment, the positive chamber conduit is connected to an accumulator for compensating for fluid leakage from the hydraulic system.

In one embodiment, the first valve is a three-position, four-way valve.

In one embodiment, the first support part is rotatably provided at the first side of the body part, and a rotation axis coincides with a width direction of the body part.

In one embodiment, the number of the second supporting parts is 3-12, and the second supporting parts are arranged on the same side of the first supporting part in the second direction.

In one embodiment, the second support portions are coaxially disposed with respect to each other and with respect to the first support portion.

Another aspect of the invention provides a crane comprising a erection device as described above.

According to the erecting device and the crane, the at least two second supporting parts and the adjusting mechanism connected with the second supporting parts are arranged, so that the load distribution of the first supporting part and the second supporting part of the hoisted object can be dynamically adjusted according to the load change of the product shell in the erecting process, and the reliability and the safety of products such as a rocket and the like lifted by the erecting device are improved.

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 diagram of a erecting device according to an embodiment of the present invention.

FIG. 2 is a schematic view of an adjustment mechanism according to an embodiment of the present invention.

Fig. 3a and 3b are schematic views of an adjustment mechanism according to an embodiment of the invention.

Fig. 4a is a schematic view of a erecting device according to an embodiment of the present invention.

Fig. 4b is a schematic view of a hydraulic system corresponding to the erecting device of fig. 4 a.

FIG. 5 is a schematic diagram of a hydraulic system incorporating an accumulator according to an embodiment of the present invention.

Fig. 6 is a schematic view of a gantry vehicle including a lift mechanism and a support structure according to an embodiment of the present invention.

Fig. 7 is a schematic view of the erecting direction of the rocket-matched erecting device.

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.

As mentioned above, when using a lift arm with three or more support parts to lift a rocket, or other products with a large slenderness ratio, the lift arm is usually provided with two main bearings plus several auxiliary bearings to avoid possible damage to, for example, the rocket case due to the use of a lift arm with only two main bearings. For example, the auxiliary supports can be in the form of hydraulic pressure or springs, and the auxiliary supports are independent of one another, i.e. the load of the arrow body at the auxiliary supports is not controlled, and the quantitative distribution of the surface pressure of the shell cannot be carried out. That is to say, during the product erecting process, the mode of matching the main support with the auxiliary support has the problem of variable load, and the variable load can be coupled with the rigidity change of the erecting arm, so that the quantitative calculation of each support point in the load designing stage cannot be realized. For example, during the erection of rocket products and the like, local overloading is often caused by poor rigid coupling, and in severe cases, the shell can be damaged.

In order to solve the above problem, the conventional solution is to reduce the load deviation during the erection of the arrow body by increasing the rigidity of the erecting arm (e.g., a long-span cantilever beam arm). On one hand, the mode of improving the rigidity of the vertical arm cannot completely eliminate the load deviation in the axial direction of the arrow body; on the other hand, the mass of the erecting arm is often too large, which results in a system that is too bulky. For example, this method of eliminating the load bias during the erection of the rocket body by increasing the stiffness of the erecting arm can result in the mass of the erecting arm far exceeding that of the target rocket being erected.

One aspect of the present invention provides a erecting device for erecting a rocket. Referring to fig. 1, the erecting device includes: the support comprises a main body part 1, a first support part 2 arranged on the main body part 1, at least two second support parts 3 and an adjusting mechanism 4 connected with the at least two second support parts 3. Wherein the main body portion 1 includes a first side and a second side opposite to each other in the first direction S1; the first support 2 and the at least two second supports 3 are provided at the first side. At least two second supports 3 are provided along the second direction S2 of the length of the main body part 1, and the first support 2 and the at least two second supports 3 are used to support an object to be supported. The adjustment mechanism 4 is used to dynamically adjust the load distribution of the at least two second supports 3 in accordance with changes in the load applied by the at least two second supports 3 to be supported. According to the erecting device provided by the embodiment of the invention, the adjustable floating supporting point (the second supporting part) is arranged, so that the load distribution of the rocket body along the axial direction can be dynamically adjusted according to the change of the load borne by the rocket body of the rocket, and the safety of the rocket in the erecting process is improved.

For example, the body portion 1 may be an elongate structure, for example for supporting products having a large slenderness ratio (e.g. rockets). For example, the length of the main body portion 1 may be approximately equal to the length of the product to be supported.

For example, the first support part 2 is used to substantially fix a rocket or the like in the vertical direction, and to prevent the rocket or the like from moving in the axial and radial directions of the rocket. For example, as shown in fig. 1, the first support part 2 may be a ring-shaped fixing member fixedly provided at a first side of the body part. For example, the ring-shaped fixing member may be an openable and closable structure. Before the rocket-like object is placed on the erecting device, the annular fastener may be first opened in the circumferential direction thereof, and after the rocket-like object is placed on the opened annular fastener, the annular fastener may be closed in the circumferential direction thereof (at this time, the inner side of the annular fastener is in contact with the circumferential direction of the rocket to catch the rocket-like object from the outer circumferential direction), thereby restricting the radial movement of the rocket along the annular fastener and the axial movement of the rocket relative to the main body. In addition, the annular fixing piece can be of a structure with adjustable diameter, so that after the rocket is placed in the opened annular fixing piece, the diameter of the annular fixing piece can be reduced, and the supported objects such as the rocket can be better limited to the main body part.

For example, as shown in fig. 1, the plurality of second support portions 3 may each be an arc-shaped support structure, for example, and the initial positions of the second support portions 3 may be arranged coaxially with the first support portion 1, for example. As described above, the second support portion 3 provided on the first side of the main body portion 1 is variable in size in the first direction S1 (the distance from the first side of the main body portion to the first side of the main body portion) after being subjected to a change in the load applied by the supported object, so that the load distribution of the supported object in the longitudinal direction of the main body portion 1 can be automatically adjusted. The adjusting mechanism 4 may, for example, connect the at least two second supporting parts 3 at the same time, so that when the load of the two second supporting parts 3 changes, the distribution of the load borne by the two second supporting parts 3 is adjusted by dynamically adjusting the height of the second supporting parts 3 in the first direction S1 (the distance from the first side of the main body to the first side of the main body where the second supporting parts are away from the first side of the main body).

For example, the plurality of second supporting parts 3 may be disposed on the same side of the first supporting part 2 in the longitudinal direction S2 of the main body 1, or may be disposed on both sides of the first supporting part 2, and all of them belong to the scope of the present invention. Preferably, the embodiment of the present invention is explained in such a manner that a plurality of second support parts 3 are provided on the same side of the first support part 2.

In one embodiment, the adjustment mechanism 4 is a hydraulic system or a pneumatic system. Referring to fig. 2, for example, in the case where the adjustment mechanism 4 is a hydraulic system, the adjustment mechanism 4 may be a cylinder and piston type structure. For example, a plurality of oil cylinders 41 may be in one-to-one correspondence with a plurality of second supporting parts 3, and the oil cylinders 41 communicate with each other on one side of the piston 42 and communicate with each other on the other side of the piston 42. Due to the nature of the gas, the chamber pressure on the side where these cylinders 41 communicate with each other is equal. When the load at different second support points 3 changes, the load between the cylinders 41 communicating with each other is readjusted, so that a new equilibrium state is reached. In this case, by calculating the load and the change of the rocket and the like along the axial direction in the erecting process in advance, the dynamic quantitative distribution of the load of the rocket and the like along the axial direction in the erecting process can be realized by designing the cross-sectional area of the oil cylinder at the corresponding position.

In one embodiment, the adjustment mechanism is a hydraulic system. With reference to fig. 3a and 3b, the erecting means comprise at least two second supports 3. For example, in the longitudinal direction S2 of the main body 1, the two second supports 3 are located on the same side as the first support 2. The hydraulic system comprises a first hydraulic ram 43 and a second hydraulic ram 44. One end 45 of the first hydraulic ram 43 is connected to one of the second support portions and the other end 46 is connected to the first valve 5. For example, the piston rod of the one end 45 is connected to the second support 3 such that the second support 3 moves with the movement of the piston rod in the cylinder when the second support 3 is forced. Similarly, one end of the second hydraulic cylinder 44 is connected to the other second support portion 3, and the other end is connected to the first valve 5. The positive chambers (positive chamber refers to a chamber connected to the oil inlet line) of the first and

second cylinders

43 and 44 are communicated through a positive chamber line 48 to form a positive chamber isobaric system, and the negative chambers (a chamber connected to the oil outlet line) of the first and

second cylinders

43 and 44 are communicated through a negative chamber line 49 to form a negative chamber isobaric system. The first valve 5 is used to adjust, for example, the oil amount and oil level of the first cylinder 43 and the second cylinder 44. According to the embodiment of the invention, the two oil cylinders corresponding to the at least two second supporting parts can dynamically adjust the heights of the two second supporting parts in the first direction according to the load changes of the supported object at the positions of the two second supporting parts in the erecting process of the supported object, so that the load distribution of the supported object along the axial direction can be adjusted.

Referring to fig. 4a and 4b, in one embodiment, the erecting device comprises: the plurality of second supporting portions 3, i.e., the second supporting

portions

31, 32, 33, 34, provided at the first side of the main body portion, and the hydraulic system includes a plurality of

cylinders

411, 412, 413, 414 corresponding to the plurality of second supporting

portions

31, 32, 33, 34, respectively. The second supporting

portions

31, 32, 33, 34 are respectively connected to one ends of the corresponding

cylinders

411, 412, 413, 414, and the other ends of the

cylinders

411, 412, 413, 414 are connected to the first valve 5. As shown above, one side of the piston rod of each of the plurality of cylinders is connected to the corresponding second support portion, so that when the piston rod moves, the corresponding second support portion is driven to move in the first direction S1. The positive chambers of the plurality of

cylinders

411, 412, 413, 414 communicate through a positive chamber line 48 to form a positive chamber isobaric system, and the counter chambers communicate through a counter chamber line 49 to form a counter chamber isobaric system. The first valve 5 is used to adjust the oil amount and oil level of the

cylinders

411, 412, 413, 414. According to the embodiment of the invention, by arranging the

oil cylinders

411, 412, 413 and 414 corresponding to the second supporting

parts

31, 32, 33 and 34, the load distribution of the object to be supported along the length direction of the main body part of the shaft can be dynamically adjusted according to the load borne by the second supporting

parts

31, 32, 33 and 34, so that the safety of the erecting process is ensured.

In the above embodiment, for example, the number of the second supporting parts 3 is 3 to 12, and the second supporting parts 3 are disposed on the same side of the first supporting part 2 in the second direction S2 of the length of the main body part 1. According to the embodiment of the invention, the second supporting part is arranged at the same side of the first supporting part, so that the structure of the hydraulic system can be simplified, and the working reliability of the system can be improved.

In this embodiment, when the rigidity of the main body of the erecting device changes, the hydraulic support hydraulic cylinder 411, the hydraulic cylinder 412, the hydraulic cylinder 413, and the hydraulic cylinder 414 connected in series in the hydraulic system 4 form a height compensation system with constant pressure and variable length under the action of the hydraulic lines connected in series in the positive chamber line 48 and the negative chamber line 49. The extension of the hydraulic oil cylinder 411 is large at the position of the second support part 31 with large pressure-bearing deformation of the main body part 1 of the erecting device, and conversely, the extension of the hydraulic oil cylinder 414 is small at the position of the second support part 34 with small pressure-bearing deformation. According to the embodiment of the invention, the height error formed by the rigidity change of the vertical arm is self-adaptively compensated through the telescopic quantity difference of each oil cylinder, so that the coaxiality requirement of the arc surface of the rocket body supporting structure (comprising the first supporting part and the plurality of second supporting parts) is met. In addition, the embodiment of the invention is communicated through the liquid path, the pressure difference of the positive cavity and the negative cavity of each hydraulic oil cylinder is equal, and after the geometric parameters such as the area of the piston of the oil cylinder, the area of the piston rod and the like are set, the load of each second supporting part (floating fulcrum) can be controllably distributed.

With continued reference to fig. 4b, in this embodiment, the first valve 5 may be, for example, a three-position, four-way valve in one embodiment. For example, before the operation, the three-position four-way valve 5 of the hydraulic system 4 is in a left-position connection state, and an oil source connected thereto is started, thereby supplying oil to the positive chambers of the

hydraulic cylinders

411, 412, 413, 414. The hydraulic system establishes working pressure, and the oil cylinder extends to the middle position of the total stroke. The supported product is in a transferring and erecting working state, the three-position four-way valve 5 is in a middle cut-off state, the hydraulic oil source does not work, and the hydraulic system is a closed system. After the work is finished, the three-position four-way valve 5 is in a right-position connection state, and the oil cylinder is reset. For example, when the three-position four-way valve 5 is in the right-hand on state, the liquid in the cylinder returns to the oil source, and the cylinder is reset.

It should be noted that the first valve 5 may be another type of valve. For example, the valve should have three operating positions, such that adjusting the position of the valve allows for operation of pressure build-up of the oil supply, system shut-down, and cylinder reset (e.g., resetting of the cylinder is accomplished by returning oil from the cylinder to the oil supply), respectively. It should be noted that, the hydraulic system according to the embodiment of the present invention may also be configured to keep the cylinder in the closed state after the initial pressure is established, without adjusting and resetting the oil level in the cylinder after the cylinder is erected before or after the erection. For example, the hydraulic oil cylinder in this way can realize dynamic adjustment of the load of the supported object through the change of the height of the second supporting part only when the supported object such as a rocket is placed on the hydraulic oil cylinder or the rocket is erected, and the mode or the deformation mode is within the protection scope of the invention.

As shown in fig. 5, the positive cavity pipeline 48 is also connected with the accumulator 6 to compensate for a small amount of leakage of valves and pipelines of the hydraulic system in an operating state, so that the hydraulic system is not decompressed, and the safety of a supported product is ensured.

As shown in fig. 6, the second supporting

parts

31, 32, 33, 34 are uniformly provided on the first side of the main body part. For example, the second support parts 3 may be provided at different intervals h according to the load variation during the erection of the object to be supported. For example, the interval h between two adjacent second supports 3 may gradually increase in the direction S2 from the first support 2 to the second support 3. For example, in the direction S2 from the first support part 2 to the second support part 3, the interval h between two adjacent second support parts 3 is increased by 20-40cm each time, so that the load distribution to the supported object along the axial direction during the erecting process can be realized by the smaller number of second support parts 3, and the position of the second support part 3 is designed according to the axial change rule of the load during the erecting process, thereby better protecting the safety of the supported object during the erecting process.

In one embodiment, in the second direction S2 along the length of the main body 1, the cross-sectional area of the cylinder corresponding to the second support 3 close to the first support 2 is smaller than or equal to the cross-sectional area of the cylinder corresponding to the second support 3 far from the first support 2. For example, when the erecting device comprises two second supporting parts 3, the cross-sectional area of the oil cylinder corresponding to the second supporting part 3 close to the first supporting part 2 is smaller than or equal to the cross-sectional area of the oil cylinder corresponding to the second supporting part 3 far from the first supporting part 2, so that the load change caused by the large deformation of the second supporting part 3 far from the first supporting part 2 during the rocket erection can be more effectively counteracted. Because the area of the oil cylinder corresponding to the second supporting part 3 far away from the first supporting part 2 is large, and the reverse cavities of the two oil cylinders are communicated through the reverse cavity pipeline, the pressure of the reverse cavities of the two oil cylinders is equal. When the cross sectional area of hydro-cylinder is different, the position deformation of keeping away from first supporting part 2 when the device that erects supports products such as rocket is great to lead to the pressure change of the second supporting part 3 that corresponds great, thereby can be through being located the great of the cross sectional area design of the hydro-cylinder that second supporting part 3 that keeps away from first supporting part 2 corresponds, can reduce the flexible volume of hydro-cylinder correspondingly, so that be close to with the flexible volume of hydro-cylinder that second supporting part 3 that is close to first supporting part 2 corresponds.

That is, the oil cylinder corresponding to the second support part 3 distant from the first support part 2 can achieve a larger pressure adjustment with a smaller length change. Similarly, when the erecting device is used for supporting products such as rockets, the load change of the second support part 3 close to the first support part 2 is relatively small, so that the large length change can be realized by the small cross-sectional area, the height change which is approximately the same as that of the second support part 3 far from the first support part 2 is realized, the coaxiality of the rockets and the like when the rockets and the like are erected is improved, and the bending moment applied to the rockets and the like by the load change in the erecting process is reduced.

In the above embodiment, the cross-sectional areas of the respective oil cylinders 414,413,412,411 respectively corresponding to the respective second supporting

portions

34,33,32,31 are sequentially increased in the direction S2 from the approach of the first supporting portion 2 to the departure of the first supporting portion 2 (i.e., the longitudinal direction of the main body portion). That is, in the process of erecting the rocket, the bearing change of the erecting device is sequentially increased from the first supporting part 2 to the second direction S2 of the second supporting part 3, so that the situation that the coaxiality of the rocket is deteriorated due to different expansion and contraction amounts of the oil cylinders can be better avoided by sequentially increasing the cross-sectional area of the oil cylinders corresponding to the second supporting part 3 in the direction S2, and the safety of the rocket in the erecting process is better protected.

In this embodiment, for example, as the spacing distance between adjacent second supports 3 increases, the rocket mass and the length increase, the amount of increase in the cross-sectional area of the cylinder increases. For example, when the distance between the adjacent second supports 3 is the same, the cross-sectional area of the cylinder increases in the second direction S2 from the first support 2 to the second support 3 as the mass, length, and elasticity of the casing of the rocket increases. Also, when the mass, length, and elasticity of the rocket are the same, the amount of increase in the cross-sectional area of the corresponding cylinder increases as the distance of separation between the adjacent second supports 3 increases in the direction S2 from the first support 2 to the second support 3. It should be noted that the erecting device designed based on the principle belongs to the protection scope of the present invention.

In one embodiment, the first support part 2 is rotatably provided at a first side of the main body part 1 with a rotation axis thereof coinciding with, for example, a width direction of the main body part 1. In the embodiment of the invention, the first supporting part 2 is rotatably arranged on the main body part 1, so that the supported object such as the rocket can rotate along with the first supporting part 2 when the height (the size in the first direction) of the second supporting part 3 is changed in the erecting process of the supported object such as the rocket, the supported object is prevented from bearing additional bending moment, and the safety of the supported object waiting for the rocket in the erecting process is further improved.

Another aspect of the invention provides a crane comprising a erection device as described above. The crane has corresponding technical effects due to the adoption of the erecting device.

According to the erecting device and the crane, the at least two second supporting parts and the adjusting mechanism connected with the second supporting parts are arranged, so that the load distribution of the first supporting part and the second supporting part of the hoisted object can be dynamically adjusted according to the pressure change of the product shell in the erecting process, and the reliability of the erecting device is improved.

Referring to fig. 7, in the erection of an actual product (e.g., a rocket), if the second supports 3 of the body part 1 are all located on the same side of the first support 2 in the length direction S2 of the body part 1, the tail of the rocket may be supported by the first support 2 and the head by the second support 3 disposed on the side of the first support 2. For example, in the case of erecting the rocket by rotating the shaft, the shaft may be provided close to the first support 2, for example, and the direction of the shaft may coincide with the width direction of the main body of the erecting device, for example. In erecting the rocket, for example, the rocket head side provided in the body 1 may be rotated about the rotation axis in the r1 direction to erect the rocket.

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 erection device for rocket erection, comprising:

the device comprises a main body part, a first supporting part arranged on the main body part, at least two second supporting parts and an adjusting mechanism connected with the at least two second supporting parts;

wherein the body portion includes first and second sides opposite to each other in a first direction; the first supporting part and the at least two second supporting parts are arranged on the first side; the at least two second supporting parts are arranged along a second direction of the length of the main body part, and the first supporting part and the at least two second supporting parts are used for supporting an object to be supported; in the length direction of the main body part, the at least two second supporting parts are positioned at the same side of the first supporting part, and the first supporting part is of an openable structure and used for fixing the rocket to be erected;

the adjusting mechanism is used for dynamically adjusting the load distribution of the at least two second supporting parts according to the change of the load applied by the object to be supported on the at least two second supporting parts;

the adjusting mechanism is a hydraulic system;

the hydraulic system comprises a first hydraulic oil cylinder and a second hydraulic oil cylinder; one end of the first hydraulic oil cylinder is connected with one of the second supporting parts; one end of the second hydraulic oil cylinder is connected with the other second supporting part;

the positive cavities of the first hydraulic oil cylinder and the second hydraulic oil cylinder are communicated through a positive cavity pipeline to form a positive cavity isobaric system, and the negative cavities of the first hydraulic oil cylinder and the second hydraulic oil cylinder are communicated through a negative cavity pipeline to form a negative cavity isobaric system.

2. The erecting device according to claim 1, wherein the other end of the first hydraulic oil cylinder is connected with a first valve; the other end of the second hydraulic oil cylinder is connected with the first valve;

the first valve is used for adjusting the oil quantity and the oil level of the first hydraulic oil cylinder and the second hydraulic oil cylinder.

3. The erecting device according to claim 2, comprising:

the hydraulic system comprises a plurality of oil cylinders which correspond to the second supporting parts one by one respectively;

the second supporting parts are respectively connected with one end of the corresponding oil cylinder, and the other end of the oil cylinder is connected to the first valve; the positive cavities of the oil cylinders are communicated through positive cavity pipelines to form a positive cavity isobaric system, and the negative cavities of the oil cylinders are communicated through negative cavity pipelines to form a negative cavity isobaric system;

4. The erecting device according to claim 1, 2 or 3, wherein in said second direction along the length of said main body portion, the cross-sectional area of the cylinder corresponding to the second support portion closer to said first support portion is smaller than or equal to the cross-sectional area of the cylinder corresponding to the second support portion farther from said first support portion.

5. The erecting device according to claim 4, wherein the cross-sectional areas of the oil cylinders respectively corresponding to the second support portions sequentially arranged from the position close to the first support portion to the position far from the first support portion sequentially increase in the second direction along the length of the main body portion.

6. Erecting device according to claim 1 or 2 or 3, characterised in that said positive chamber line is further connected to an accumulator for compensating fluid leakage of said hydraulic system.

7. The erecting device according to claim 2 or 3, wherein said first valve is a three-position four-way valve.

8. A erection device as claimed in any one of claims 1 to 3, wherein the first support part is rotatably provided at the first side of the body part, with an axis of rotation coinciding with the width direction of the body part.

9. Erecting device according to claim 8, wherein said second support portions are arranged coaxially with respect to each other and with respect to said first support portion.

10. A crane, comprising a erection device according to any one of claims 1-9.