Erecting cylinder sliding frame type floating supporting device and erecting vehicle

Abstract

The utility model provides an erecting cylinder sliding frame type floating supporting device and an erecting vehicle. The supporting device comprises a swing supporting frame and a sliding bracket. The sliding bracket is arranged in a sliding mode relative to the swing supporting frame. The end, extending out of the swing supporting frame, of the sliding bracket is used for supporting an erecting cylinder of the erecting vehicle, and the swing supporting frame is rotationally connected with a chassis transfer frame of the erecting vehicle so that the chassis transfer frame can be rotated in the erecting process of an erecting frame of the erecting vehicle. The erecting cylinder is adaptively supported through sliding of the sliding bracket relative to the swing supporting frame and rotation of the swing supporting frame relative to the chassis transfer frame. The supporting device can adaptively support the erecting cylinder along with rotation of the erecting cylinder.

Description

Technical Field

[0001] This utility model relates to the field of heat treatment processing tooling for launch vehicles, specifically to a floating support device for a lifting cylinder slide and a lifting vehicle. Background Technology

[0002] A certain medium-sized liquid-propellant launch vehicle adopts a vehicle-mounted integrated transport and erection launch mode. The erector vehicle used for rocket transport and erection is equipped with an erector frame, and a dual erector cylinder drives the erector frame to rotate relative to the chassis adapter to erect the rocket. The erector cylinders can be hydraulic cylinders, and the dual erector cylinders are rigidly synchronized, with the lower hinge point located on the chassis adapter. Before rocket launch, the erector vehicle can be quickly evacuated to avoid pre-launch ablation damage. Due to the large weight of the erector frame and rocket, the erector cylinders need to have a large diameter and a long stroke. During the extension of the erector cylinders, the weight of the hydraulic cylinders easily causes significant deflection deformation. Actual measurements show that the deflection deformation is approximately 50mm. Under this deformation, the hydraulic cylinder piston and the support ring of the guide sleeve will bear significant pressure, increasing the friction of the support ring. This results in significant creeping vibration during the erection frame's 75° to 90° erection, causing resonance in the erector frame and failing to meet the rocket's required specifications. Since the dimensions and positions of the upper and lower hinge points of the erecting cylinder are fixed, the determined cylinder stroke cannot solve the above problems by increasing the size of the guide sleeve or other means. Replacing the cylinder or changing the design would take a long time and result in significant economic losses.

[0003] To reduce the deflection and deformation of the erecting cylinder and ensure its smooth extension and operation, it is particularly important to design a sliding floating support device for the erecting cylinder. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a floating support device for a vertical cylinder slide.

[0005] This utility model provides a floating support device for a lifting cylinder slide, comprising: a swing support frame and a sliding bracket; the sliding bracket is slidably disposed relative to the swing support frame; one end of the sliding bracket extends out of the swing support frame to support the lifting cylinder of the lifting vehicle; the swing support frame is rotatably connected to the chassis adapter frame of the lifting vehicle, so that during the lifting process of the lifting frame of the lifting vehicle, the lifting cylinder is adaptively supported by the sliding bracket relative to the swing support frame and the rotation of the swing support frame relative to the chassis adapter frame.

[0006] According to one embodiment of the present invention, the swing support frame is provided with two parallel guide rails, and each of the two guide rails is provided with a bracket slider; the sliding bracket is fixedly connected to the bracket slider; the bracket slider is slidably disposed relative to the guide rails, so as to drive the sliding bracket to slide relative to the swing support frame.

[0007] According to one embodiment of the present invention, a carriage limiting block is respectively provided at the end of the two guide rails that extends away from the sliding bracket; the carriage limiting block is used to limit the sliding bracket in the sliding direction of the sliding bracket.

[0008] According to one embodiment of the present invention, it further includes a floating cylinder and a floating cylinder rod; the floating cylinder is disposed on the swing support frame; the floating cylinder has a hollow structure, and the floating cylinder rod is slidably disposed inside the floating cylinder along the axial direction of the floating cylinder, with one end of the floating cylinder rod extending out of the floating cylinder connected to the sliding bracket; the end of the floating cylinder that extends away from the floating cylinder rod is used to communicate with a hydraulic oil supply pipeline to supply oil to the hollow structure of the floating cylinder, and to control the floating cylinder rod to slide relative to the floating cylinder to push out or retract the sliding bracket.

[0009] According to one embodiment of the present invention, a cylinder support is provided at one end of the sliding bracket extending from the swing support frame; the cylinder support is used to abut against the radial outer side of the erecting cylinder; the cylinder support is used to abut against the end face of the erecting cylinder and is adapted to the radial outer side of the erecting cylinder.

[0010] According to one embodiment of the present invention, the cylinder support is rotatably connected to the sliding bracket to adaptively support the erecting cylinder during its rotation.

[0011] According to one embodiment of the present invention, it further includes a support structure and a pressure cap. The support structure is used to be fixedly connected to the chassis adapter frame. The support structure includes two lugs, each of which is detachably connected to one of the pressure caps. The swing support frame is provided with a rotary trunnion, the two ends of which are respectively located at the joints between the two lugs and the pressure cap, and are rotatably connected to them.

[0012] According to one embodiment of the present invention, the hydraulic oil supply pipeline is used to connect the floating cylinders of multiple support devices in series, so that the floating cylinders of multiple support devices provide the same supporting force to the erecting cylinder.

[0013] On the other hand, this utility model provides an erecting vehicle, including a chassis adapter frame, an erecting frame, an erecting cylinder, and the aforementioned support device; the erecting frame is rotatably connected to the chassis adapter frame; both ends of the erecting cylinder are respectively connected to the erecting frame and the chassis adapter frame; the support device is disposed between the erecting frame and the erecting cylinder; the swing support frame is rotatably connected to the chassis adapter frame; the sliding bracket abuts against the radially outer side of the erecting cylinder to support the erecting cylinder; the erecting cylinder extends and retracts, pushing the erecting frame to rotate around the chassis adapter frame, so that the erecting frame is erected or retracted.

[0014] According to one embodiment of the present invention, the chassis adapter is provided with a swing limiting block in the rotation direction of the swing support frame, and the swing limiting block is used to limit the rotation of the swing support frame.

[0015] The floating support device of the lifting cylinder slide of this utility model provides adaptive support by rotating with the lifting cylinder, thus solving the problem of vibration caused by excessive deflection of the lifting cylinder during the lifting process.

[0016] It should be understood that the above general description and the following specific embodiments are merely exemplary and illustrative, and do not limit the scope of the present invention. Attached Figure Description

[0017] The accompanying drawings are part of the specification of this utility model and illustrate exemplary embodiments of the utility model. The drawings, together with the description in the specification, are used to illustrate the principles of the utility model.

[0018] Figure 1 This is a schematic diagram of a floating support device for a lifting cylinder slide frame according to an embodiment of the present invention, which supports the lifting cylinder.

[0019] Figure 2 yes Figure 1 Enlarged view of A in the middle;

[0020] Figure 3 This is a schematic diagram of a vertical cylinder slide-type floating support device according to another embodiment of the present invention.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Erection frame; 2. Chassis adapter frame; 3. Erection cylinder; 4. Floating support device; 5. Cylinder support; 6. Sliding bracket; 7. Bracket slider; 8. Support structure; 9. Pressure cap; 10. Swing support frame; 11. Guide rail; 12. Floating cylinder barrel; 13. Floating cylinder rod; 14. Cylinder rod seat; 15. Connecting pin; 16. Accumulator; 17. Pressure gauge; 18. Check valve; 19. Manual shut-off valve; 20. Pressure regulating valve; 21. Erection cylinder seat; 22. Swing limit block; 23. Cylinder barrel slewing seat; 24. Slide limit block. Detailed Implementation

[0023] The features and exemplary embodiments of various aspects of this utility model will be described in detail below. To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain this utility model and to exemplarily illustrate the principles of this utility model, and are not configured to limit this utility model. In addition, the structural components in the drawings are not necessarily drawn to scale. For example, the dimensions of some structural components or regions in the drawings may be enlarged for other structural components or regions to aid in the understanding of the embodiments of this utility model.

[0024] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of the embodiments of this utility model. In the description of this utility model, it should be noted that, unless otherwise stated, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Furthermore, the terms "comprising," "including," "having," or any other variations thereof are intended to cover non-exclusive inclusion, such that a structure or component that includes a list of elements includes not only those elements but also other structural elements that are not expressly listed or inherent to the structure or component. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the article or apparatus that includes the element.

[0026] Spatial relation terms such as "below," "under," "under," "low," "above," "on," and "high" are used for descriptive convenience to explain the positioning of one element relative to a second element, indicating that these terms are intended to cover different orientations of the device, in addition to those different from those shown in the figure. Furthermore, phrases such as "one element on / below another element" can indicate that two elements are in direct contact, or that there are other elements between the two elements. In addition, terms such as "first" and "second" are also used to describe individual elements, areas, parts, etc., without specifically indicating order or sequence, and should not be considered restrictive. Similar terms are used throughout the description to represent similar elements.

[0027] In the following description of this utility model, the terms "rocket," "launch vehicle," "spacecraft," "space launch vehicle," or "missile" may be used in certain scenarios for ease of description only, and their connotations are not limited to the specific terms used. Generally, the launch vehicle of this utility model includes space launch vehicles used to launch satellites, spacecraft, or other probes, as well as various missiles, rockets, and other weapons used to carry payloads, and similar products capable of delivering payloads into the air. Those skilled in the art, when interpreting the above specific terms, should not limit the launch vehicle to only one of the space launch vehicles or missiles based on the specific terms used in the description, thereby narrowing the scope of protection of this utility model.

[0028] For those skilled in the art, this invention can be implemented without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the invention by illustrating examples.

[0029] Figure 1 This is a schematic diagram of a floating support device for a lifting cylinder slide frame according to an embodiment of the present invention, which supports the lifting cylinder. Figure 2 yes Figure 1 Enlarged view of A in the middle; Figure 3 This is a schematic diagram of a vertical cylinder slide-type floating support device according to another embodiment of the present invention.

[0030] like Figure 1 and 2 As shown, this utility model provides a floating support device 4 for a hoisting cylinder slide, including: a swing support frame 10 and a sliding bracket 6. The sliding bracket 6 is slidably disposed relative to the swing support frame 10. One end of the sliding bracket 6 extends out of the swing support frame 10 to support the hoisting cylinder 3 of the hoisting vehicle. The swing support frame 10 is rotatably connected to the chassis adapter 2 of the hoisting vehicle, so that during the hoisting process of the hoisting frame 1 of the hoisting vehicle, the hoisting cylinder 3 is adaptively supported by the sliding of the sliding bracket 6 relative to the swing support frame 10 and the rotation of the swing support frame 10 relative to the chassis adapter 2.

[0031] In this embodiment, during the erection of the rocket erector, the support device provides auxiliary support to the erector cylinder, reducing the deflection deformation caused by the cylinder's long stroke and heavy load. This solves the vibration problem caused by excessive cylinder deflection during erection. By adaptively supporting the rotating erector cylinder throughout the erection process, the support device ensures smooth operation of the erector, reduces overload during erection, meets onboard performance requirements, and improves the stability and reliability of rocket erection. This provides valuable experience for the design of subsequent long-stroke erector cylinders capable of erecting heavy loads. Furthermore, using this support device eliminates the need to modify the original erector cylinder design, avoiding associated costs and saving money.

[0032] like Figure 2 As shown, according to one embodiment of the present invention, the swing support frame 10 is provided with two parallel guide rails 11, and each guide rail 11 is provided with a bracket slider 7. The sliding bracket 6 is fixedly connected to the bracket slider 7. The bracket slider 7 is slidably disposed relative to the guide rail 11, so as to drive the sliding bracket 6 to slide relative to the swing support frame 10.

[0033] In this embodiment, for example, two guide rails 11 are arranged on opposite sides of the swing support frame 10 near the sliding bracket 6 to make the sliding bracket 6 slide more smoothly relative to the swing support frame 10. For example, each guide rail may be provided with multiple bracket sliders 7 (e.g., four bracket sliders 7 per guide rail) to make the sliding bracket 6 slide more smoothly relative to the swing support frame 10.

[0034] According to one embodiment of the present invention, slide limit blocks 24 are respectively provided at the ends of the two guide rails 11 that extend away from the sliding bracket 6. The slide limit blocks 24 are used to limit the sliding bracket 6 in the sliding direction.

[0035] In this embodiment, the carriage limiting block 24 can prevent the sliding bracket 6 from disengaging from the guide rail 11, thus providing safety protection for the device.

[0036] like Figure 2 and Figure 3 As shown, according to one embodiment of the present invention, in addition to the swing support frame 10 and the sliding bracket 6, the support device also includes a floating cylinder 12 and a floating cylinder rod 13. The floating cylinder 12 is disposed on the swing support frame 10. The floating cylinder 12 has a hollow structure, and the floating cylinder rod 13 is slidably disposed inside the floating cylinder 12 along the axial direction of the floating cylinder 12. One end of the floating cylinder rod 13 extending out of the floating cylinder 12 is connected to the sliding bracket 6. The end of the floating cylinder 12 extending away from the floating cylinder rod 13 is used to communicate with a hydraulic oil supply line to supply oil to the hollow structure of the floating cylinder 12, and to control the floating cylinder rod 13 to slide relative to the floating cylinder 12, so as to push out or retract the sliding bracket 6.

[0037] In this embodiment, for example, the floating cylinder rod 13 can be a plunger cylinder rod. The large and small chambers of the floating cylinder barrel 12 and the floating cylinder rod 13 are connected, and the floating cylinder rod 13 slides within the floating cylinder barrel 12 under the pushing action of hydraulic pressure. Figure 2 As shown, for example, the sliding bracket 6 is provided with a cylinder rod seat 14, and the floating cylinder rod 13 is hinged to the cylinder rod seat 14 via a connecting pin 15. For example, the swing support frame 10 can be provided with a cylinder barrel rotary seat 23, and the end of the floating cylinder 12 extending away from the floating cylinder rod 13 is hinged to the cylinder barrel rotary seat 23. For example, the end of the floating cylinder 12 extending away from the floating cylinder rod 13 can be located near the end of the swing support frame 10 extending away from the sliding bracket 6.

[0038] According to one embodiment of the present invention, a cylinder support 5 is provided at one end of the sliding bracket 6 extending out of the swing support frame 10. The cylinder support 5 is used to abut against the radial outer side of the erecting cylinder 3. The end face of the cylinder support 5 abuts against the radial outer side of the erecting cylinder 3 is adapted to fit the radial outer side of the erecting cylinder 3.

[0039] In this embodiment, for example, the end face of the cylinder support 5 that abuts against the erecting cylinder 3 can be a semi-circular arc structure. The semi-circular arc structure has the same radial circumference as the erecting cylinder 3 to ensure close contact with the erecting cylinder 3 during rotation. This support device drives the sliding bracket 6 to slide relative to the swing support frame 10 through the telescopic movement of the floating cylinder rod 13 relative to the floating cylinder barrel 12, thereby causing the cylinder support 5 to telescopically extend and retract with the rotation of the erecting cylinder 3.

[0040] According to one embodiment of the present invention, the cylinder support 5 and the sliding bracket 6 are rotatably connected to adaptively support the erecting cylinder 3 during its rotation.

[0041] In this embodiment, during the erection process of the erector 1, as the erection angle increases, the cylinder support 5 rotates accordingly and always abuts against the radial outer side of the erector 3 to support the erector 3.

[0042] like Figure 2 As shown, according to one embodiment of the present invention, in addition to the swing support frame 10 and the sliding bracket 6, the support device also includes a support structure 8 and a pressure cover 9. The support structure 8 is used for fixed connection with the chassis adapter frame 2. The support structure 8 includes two lugs, each of which is detachably connected to a pressure cover 9. The swing support frame 10 is provided with a rotating trunnion, the two ends of which are respectively located at the joints between the two lugs and the pressure cover 9, and are rotatably connected to them.

[0043] In this embodiment, the lugs of the support structure 8 are detachably connected to the pressure cap 9, which facilitates the installation of the rotatable trunnion of the swing support frame 10.

[0044] like Figure 3 As shown, according to one embodiment of the present invention, the hydraulic oil supply pipeline is used to connect to a hydraulic oil source. An accumulator 16 is provided in the hydraulic oil supply pipeline to store hydraulic oil, thereby ensuring the pressure within the floating cylinder 12.

[0045] In this embodiment, a portion of the hydraulic oil enters the floating cylinder 12 to push the floating cylinder rod 13 outward; a portion of the hydraulic oil enters the accumulator 16 for storage to prevent pressure drop in the floating cylinder 12 due to hydraulic oil leakage (e.g., valve leakage). This support device, through the accumulator 16, can guarantee the supporting force described for the erecting cylinder 3 in real time. For example, a hydraulic oil source is connected to supply hydraulic oil to the floating cylinder 12 via the quick-connect interface P of the hydraulic oil supply line.

[0046] According to one embodiment of this utility model, the hydraulic oil supply pipeline is equipped with a check valve 18, a pressure gauge 17, and a pressure regulating valve 20. The hydraulic oil supply pipeline is also equipped with a discharge pipeline, and the discharge pipeline is equipped with a manual shut-off valve 19.

[0047] In this embodiment, the one-way valve 18 is used to prevent hydraulic oil from flowing backward and causing leakage. The pressure gauge 17 is used to check the pressure value to ensure that the hydraulic oil pressure in the floating cylinder 12 is within a reasonable range. The pressure regulating valve 20 can regulate the hydraulic oil pressure in the floating cylinder 12. Under long-term working conditions, the hydraulic oil in the accumulator 16 and the floating cylinder can be discharged through the manual shut-off valve 19 to prevent it from being pressurized for a long time.

[0048] According to one embodiment of the present invention, the hydraulic oil supply line is used to connect the floating cylinders 12 of multiple support devices in series, so that the multiple support devices provide the same supporting force to the erecting cylinder 3.

[0049] In this embodiment, for example, the erecting frame uses a double-cylinder (two erecting cylinders) system, with each of the two erecting cylinders corresponding to an erecting device. In this embodiment, by connecting the floating cylinders 12 of the two support devices, it can be ensured that the two support devices provide equal support to the erecting cylinders, preventing eccentric loading.

[0050] On the other hand, this utility model provides an erecting vehicle, including a chassis adapter 2, an erecting frame 1, an erecting cylinder 3, and the aforementioned support device. The erecting frame 1 is rotatably connected to the chassis adapter 2. Both ends of the erecting cylinder 3 are connected to the erecting frame 1 and the chassis adapter 2, respectively. The support device is disposed between the erecting frame 1 and the erecting cylinder 3. A swing support frame 10 is rotatably connected to the chassis adapter 2, and a sliding bracket 6 abuts against the radially outer side of the erecting cylinder 3 to support it. The erecting cylinder 3 extends and retracts, pushing the erecting frame 1 to rotate around the chassis adapter 2, thereby causing the erecting frame 1 to be erected or retracted.

[0051] In this embodiment, the upper and lower hinge points of the erecting cylinder 3 are located at the erecting frame 1 and the chassis adapter 2, respectively. The extension of the erecting cylinder 3 pushes the erecting frame 1 to rotate around the chassis adapter 2, thus erecting the erecting frame 1. For example, the erecting frame 1 and the chassis adapter 2 can be connected by a rotary shaft structure. The erecting cylinder 3 can be a hydraulic cylinder. For example, as... Figure 3 As shown, the chassis adapter 2 can be equipped with a lifting cylinder seat 21, and one end of the lifting cylinder 3 can be rotatably connected to the lifting cylinder seat 21.

[0052] Through testing, it was found that the erecting cylinder 3 is a hydraulic cylinder. When the erecting cylinder 3 is raised to the range of 75°~90°, due to its excessive extension, the erecting cylinder 3 undergoes flexible deformation under its own weight, resulting in excessive friction between its support ring and piston. This causes the erecting cylinder 3 to crawl and vibrate, which in turn causes the erecting frame 1 to vibrate. This erecting vehicle solves the problem of vibration of the erecting frame caused by the flexible deformation of the erecting cylinder by using a support device to provide auxiliary support for the erecting cylinder 3 from the side closer to the chassis adapter frame (i.e., the inner side of the erecting cylinder forming an angle with the chassis adapter frame).

[0053] like Figure 3 As shown, according to one embodiment of the present invention, the chassis adapter 2 is provided with a swing limiting block 22 in the rotation direction of the swing support frame 10. The swing limiting block 22 is used to limit the rotation of the swing support frame 10.

[0054] In this embodiment, for example, during the process of the erecting cylinder 3 extending to erect the erecting frame 1, the swing support frame 10 rotates accordingly. The chassis adapter 2 is fixedly provided with a swing limit block 22 in the rotation direction of the swing support frame 10, which can prevent the support device (e.g., the floating cylinder 12 or the part of the swing support frame 10 near the floating cylinder 10) from swinging down at too large an angle, causing the cylinder support 5 and the erecting cylinder 3 to not be fully fitted and abutted.

[0055] In one embodiment of this application, through testing with the erecting cylinder 3 extended under no-load, it was determined that the required supporting force for the erecting cylinder 3 is approximately 10 tons. Based on the cylinder diameter specifications of the erecting cylinder 3, the support device is installed... Figure 3 At the location shown, the supporting pressure of the support device is approximately 10-12 MPa, which is sufficient to meet the support requirements for the erecting cylinder 3.

[0056] The following is an example of the erection mechanism 1 of this utility model:

[0057] S01: Preparations before erection, as detailed below:

[0058] First, hydraulic oil enters the floating cylinder 12 through port P and check valve 18. Second, the hydraulic oil within the floating cylinder 12 pushes the floating cylinder rod 13, causing the sliding bracket 6 to extend to its maximum length. At this point, the piston of the floating cylinder rod 13 contacts the guide sleeve of the floating cylinder 12, further increasing the pressure within the floating cylinder 12, and some oil enters the accumulator 16. When the hydraulic oil pressure within the floating cylinder 12 reaches the pressure value set by the pressure regulating valve 20, the pressure stops increasing, and the filling process ends (for example, when the pressure gauge 17 detects a pressure of approximately 10 MPa, the filling process ends, and then the pressure of the pressure regulating valve 20 is continuously adjusted upwards, exceeding 12 MPa). At this time, the floating support device, under the action of gravity, ... Figure 3 The cylinder swings counterclockwise until the floating cylinder 12 contacts the swing limit block 22, and the cylinder support 5 waits for the erecting cylinder 3 to swing downwards. It has been verified that when the erecting frame is erected to approximately 65°, the downward deflection of the erecting cylinder 3 begins to gradually increase.

[0059] S02: Contact support.

[0060] When the erecting frame is erected to approximately 75°, the radially outer surface of the erecting cylinder 3 contacts and adheres to the cylinder support 5. The cylinder support 5 applies pressure to the floating cylinder rod 13 via the sliding bracket 6, causing the floating cylinder rod 13 to retract. Furthermore, since the floating cylinders 12 of the support devices corresponding to the two erecting cylinders 3 are connected in series, the two floating cylinders 12 experience the same force. The deflection of the erecting cylinder 3 decreases under the supporting force, making its extension smoother.

[0061] S03: Follow-up support.

[0062] As the erecting frame angle continues to increase to 90°, the extension length of the erecting cylinder 3 gradually increases, and the supporting force required for the erecting cylinder 3 also gradually increases. The sliding bracket 6 continues to apply pressure to the floating cylinder rod, and the floating cylinder rod 13 continues to retract. During this process, the hydraulic oil in the floating cylinder barrel 12 is forced into the accumulator 16, the gas in the accumulator 16 is compressed, and the pressure in the accumulator 16 gradually increases, maintaining balance with the hydraulic oil pressure in the floating cylinder barrel 12 until the pressure value limited by the pressure regulating valve is reached. During the rotation of the erecting cylinder 3, it remains in close contact with the cylinder support 5. The trunnion of the swing support frame 10 rotates relative to the support structure 8 to adapt to the change in the swing angle of the erecting cylinder 3, ensuring that the extension of the erecting cylinder 3 remains stable.

[0063] S04: Reverse support.

[0064] During the retraction (returning) of the erector frame 1, the telescopic rod of the erector cylinder 3 swings upward (as shown in the figure, the erector cylinder 3 swings counterclockwise). The sliding bracket extends under the thrust of the floating cylinder rod 13, and the hydraulic oil in the accumulator 16 is discharged until the erector frame returns to 75°. The floating cylinder rod 13 extends relative to the floating cylinder cylinder 12 and the erector cylinder 3 no longer requires external support and continues to operate smoothly. At this time, the erector frame 1 disconnects from the rocket, achieving zero-second detachment.

[0065] S05: Accumulator liquid discharge.

[0066] In the case where the erector 1 is parked for a long period of time, the support device no longer supports the erector cylinder 3. The hydraulic oil in the accumulator is drained by manually opening the shut-off valve 19 (for example, the hydraulic oil is drained back to the oil tank).

[0067] The above embodiments of this utility model can be combined with each other and have corresponding technical effects.

[0068] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A floating support device for a vertical cylinder slide, characterized in that, include: A swing support frame and a sliding bracket; the sliding bracket is slidably disposed relative to the swing support frame; The sliding bracket extends out of one end of the swing support frame to support the erecting cylinder of the erecting vehicle. The swing support frame is rotatably connected to the chassis adapter frame of the erecting vehicle so that during the erection process of the erecting frame of the erecting vehicle, the erecting cylinder is adaptively supported by the sliding of the sliding bracket relative to the swing support frame and the rotation of the swing support frame relative to the chassis adapter frame.

2. The support device according to claim 1, characterized in that, The swing support frame is provided with two parallel guide rails, and each guide rail is provided with a bracket slider; the sliding bracket is fixedly connected to the bracket slider; the bracket slider is slidably disposed relative to the guide rails, so as to drive the sliding bracket to slide relative to the swing support frame.

3. The support device according to claim 2, characterized in that, Each of the two guide rails is provided with a carriage limiting block at the end that extends away from the sliding bracket; the carriage limiting block is used to limit the sliding bracket in the sliding direction of the sliding bracket.

4. The support device according to claim 1, characterized in that, It also includes a floating cylinder and a floating cylinder rod; the floating cylinder is disposed on the swing support frame; the floating cylinder has a hollow structure, and the floating cylinder rod is slidably disposed inside the floating cylinder along the axial direction of the floating cylinder, with one end of the floating cylinder rod extending out of the floating cylinder and connected to the sliding bracket; The end of the floating cylinder that extends away from the floating cylinder rod is connected to a hydraulic oil supply line to supply oil to the hollow structure of the floating cylinder and control the floating cylinder rod to slide relative to the floating cylinder to push out or retract the sliding bracket.

5. The support device according to claim 1, characterized in that, The sliding bracket extends out of the swing support frame and is provided with a cylinder support; the cylinder support is used to abut against the radial outer side of the erecting cylinder; the cylinder support is used to abut against the end face of the erecting cylinder and is adapted to the radial outer side of the erecting cylinder.

6. The support device according to claim 5, characterized in that, The cylinder support is rotatably connected to the sliding bracket to adaptively support the erecting cylinder during its rotation.

7. The support device according to claim 1, characterized in that, It also includes a support structure and a pressure cap, the support structure being used for fixed connection with the chassis adapter frame; the support structure includes two lugs, each of which is detachably connected to one of the pressure caps. The swing support frame is provided with a rotary trunnion, and the two ends of the rotary trunnion are respectively located at the docking points of the two supports and the pressure cap, and are rotatably connected to them.

8. The support device according to claim 4, characterized in that, The hydraulic oil supply line is used to connect the floating cylinders of multiple support devices in series, so that the floating cylinders of multiple support devices provide the same supporting force to the erecting cylinder.

9. A hoisting vehicle, characterized in that, Includes a chassis adapter, a lifting frame, a lifting cylinder, and a support device as described in any one of claims 1 to 8; The erecting frame is rotatably connected to the chassis adapter frame; The two ends of the erecting cylinder are respectively connected to the erecting frame and the chassis adapter frame; the support device is disposed between the erecting frame and the erecting cylinder; the swing support frame is rotatably connected to the chassis adapter frame; the sliding bracket abuts against the radial outer side of the erecting cylinder to support the erecting cylinder; the erecting cylinder extends and retracts, pushing the erecting frame to rotate around the chassis adapter frame, so that the erecting frame is erected or retracted.

10. The erecting vehicle according to claim 9, characterized in that, The chassis adapter is provided with a swing limit block in the rotation direction of the swing support frame, and the swing limit block is used to limit the rotation of the swing support frame.

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