A self-leveling vertical transfer device for solid rocket engines

Abstract

The present invention discloses a self-leveling vertical transfer device for solid rocket engines, which transfers products by automatically leveling the product's own gravity, thereby improving product transfer efficiency, ensuring that the product is not impacted by external forces, and preventing the propellant inside the product from shaking. The self-leveling vertical transfer device mainly includes a transfer frame, a horizontal rocker arm, a vertical rocker arm, a mounting seat, a hydraulic damping cylinder, a spring buffer limit cylinder, a connecting support arm, a zero-position locking mechanism, and a product quick locking device. By relying on the rotation of the horizontal rocker arm and the vertical rocker arm along the rotation axis, the product swings back and forth and left and right in a vertical state; at the same time, the hydraulic damping cylinder and the spring buffer limit cylinder apply a force to the horizontal rocker arm and the vertical rocker arm to prevent the rocker arm from swinging, and at the same time, the spring buffer limit cylinder applies a reset force to the support arm, providing a buffer limit when the support arm swing angle is too large.

Description

Technical Field

[0001] The invention relates to the field of outdoor logistics transportation of solid rocket engines, and particularly relates to a self-leveling vertical transportation device for solid rocket engines. Background Art

[0002] In the field of outdoor logistics and transfer of solid rocket engines, after the solution is poured, the product needs to be transferred to different workshops for subsequent processing. This is due to the high production demand, the long distances between production workshops, and the harsh environmental conditions (uneven roads, many right-angle bends, and uphill and downhill sections). Furthermore, during product transfer, it is necessary to prevent the solution inside the product from overflowing from the outer shell (to ensure the product is in a vertical position) and to ensure that the product is not impacted during transfer. These conditions limit product production efficiency. Existing transfer devices use hydraulic and electric control methods and are passive leveling devices. They rely on a control system to detect the product angle and control the transfer device to maintain the product in a vertical position through hydraulic or servo motors. This transfer device is subject to significant impact during turns, uphill and downhill, and braking, and cannot guarantee that the product is always in a vertical position. Summary of the Invention

[0003] In response to the above-mentioned deficiencies in the existing technology, the purpose of the present invention is to provide a self-leveling vertical transfer device that relies on the product's own gravity for automatic leveling. During turning and braking, the product relies on its own gravity to slightly swing left and right and forward and backward to ensure that the product is not affected by impact. At the same time, when going up and down slopes, the product relies on its own gravity to always ensure that the product is in a vertical state. This device can improve product transfer efficiency and ensure safety and stability during product transfer.

[0004] This application achieves the above effects through the following technical solutions:

[0005] A self-leveling vertical transfer device for solid rocket engines, comprising a horizontal rocker arm, a vertical rocker arm, a mounting seat, a hydraulic damping cylinder, a spring buffer limit cylinder, a connecting arm, and a zero-position locking mechanism; wherein two vertical rocker arms are vertically mounted on the mounting seat, the top ends of the vertical rocker arms being connected to the two ends of the horizontal rocker arm, respectively; the horizontal rocker arms are in the form of an open rectangle, with the opening located directly above the mounting seat for accommodating the product;

[0006] The vertical rocker arm is provided with a damping system consisting of a hydraulic damping cylinder, a spring buffer limit cylinder, and a connecting arm. One end of the hydraulic damping cylinder, the spring buffer limit cylinder, and the connecting arm are connected to the vertical rocker arm and the other end is connected to a rocker arm of the horizontal rocker arm, playing a supporting and buffering role;

[0007] The horizontal rocker arm is connected to the transfer frame through a first bearing, and the horizontal rocker arm can rotate along the horizontal axis;

[0008] The vertical rocker arm is connected to the horizontal rocker arm through a second bearing, and the vertical rocker arm can rotate along the vertical axis.

[0009] Furthermore, the entire transfer device is installed on a special truck through a transfer frame.

[0010] Furthermore, a quick locking device is provided at the edge of the mounting seat, and the quick locking device is used to fix the product and the mounting seat.

[0011] Furthermore, a zero-position locking mechanism is provided at the connection between the vertical rocker arm and the horizontal rocker arm, and the horizontal rocker arm and the vertical rocker arm are fixed by the zero-position locking mechanism.

[0012] Furthermore, the horizontal rocker arm comprises two vertical rocker arm connecting sections and a mounting section, wherein the vertical rocker arm connecting section is connected to the mounting section, and the mounting section is mounted on the transfer frame through a first bearing;

[0013] A spring buffer limit cylinder is installed on the horizontal rocker arm, one end of the spring buffer limit cylinder is connected to the transfer frame, and the other end is connected to the installation section.

[0014] Furthermore, the transfer frame is composed of rectangular tubes of different specifications welded together.

[0015] Furthermore, the hydraulic buffer cylinder on one of the vertical rocker arms is connected to the transfer frame and the horizontal rocker arm through a connecting arm, and the damping cylinder and the connecting arm are installed through a pin and a retaining spring; the damping system on the other vertical rocker arm is arranged in a mirror-symmetrical manner with it.

[0016] Furthermore, the spring buffer limit cylinder includes a cylinder body, a piston rod, a buffer spring, a spring seat, an end cover, and a connecting support ear. The spring buffer limit cylinder is connected to the transfer frame and the horizontal rocker arm through a connecting support arm. The spring buffer limit cylinder is connected to the horizontal rocker arm and the vertical rocker arm through a connecting support arm. The buffer cylinder and the connecting support arm are installed by a pin and a retaining ring.

[0017] Furthermore, the zero-position locking mechanism fixes the horizontal rocker arm to the side bracket of the transfer frame through a locking pin, and fixes the vertical rocker arm to the horizontal rocker arm through a locking pin.

[0018] Compared with the existing product transfer device, the present invention has the following beneficial effects:

[0019] 1. Rely on gravity to adaptively level:

[0020] The self-leveling transfer device can swing freely in both horizontal and vertical directions, that is, it relies on the rotation of the horizontal rocker arm and the vertical rocker arm along the rotation axis. At the same time, the mounting base is positioned to ensure that the center of gravity of the product is on the same vertical line as the horizontal rotation axis. During transportation, the product's own gravity can ensure that the product swings back and forth and left and right and remains in a vertical state.

[0021] 2. Prevent the product from swinging too far:

[0022] The horizontal rocker arm and the transfer frame, and the vertical rocker arm and the horizontal rocker arm are connected by a hydraulic damping cylinder and a spring buffer limit cylinder. The hydraulic damping cylinder and the spring buffer limit cylinder apply a force to the horizontal rocker arm and the vertical rocker arm to prevent the rocker arm from swinging. At the same time, the spring buffer limit cylinder applies a reset force to the support arm to provide a buffer limit when the support arm swing angle is too large. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an axonometric view of a self-leveling vertical transfer rack device;

[0024] Figure 2 Front view of the self-leveling vertical transfer rack device;

[0025] Figure 3 This is a schematic diagram of the product's quick locking device;

[0026] In the figure, 1-transfer frame, 2-horizontal rocker arm, 3-vertical rocker arm, 4-mounting seat, 5-hydraulic damping cylinder, 6-spring buffer limit cylinder, 7-connecting support arm, 8-zero position locking mechanism, 9-quick locking device, 10-locking pin. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0028] This embodiment is a self-leveling vertical transfer device for solid rocket engines, comprising a horizontal rocker arm, a vertical rocker arm, a mounting seat, a hydraulic damping cylinder, a spring buffer limit cylinder, a connecting arm, and a zero-position locking mechanism. Two vertical rocker arms are vertically mounted on the mounting seat, the top ends of the vertical rocker arms being connected to the ends of the horizontal rocker arms, respectively. The horizontal rocker arms are in the form of an open rectangle, with the opening located directly above the mounting seat for accommodating the product.

[0029] The vertical rocker arm is provided with a damping system consisting of a hydraulic damping cylinder, a spring buffer limit cylinder, and a connecting arm. One end of the hydraulic damping cylinder, the spring buffer limit cylinder, and the connecting arm are connected to the vertical rocker arm and the other end is connected to a rocker arm of the horizontal rocker arm, playing a supporting and buffering role;

[0030] The horizontal rocker arm is connected to the transfer frame through a first bearing, and the horizontal rocker arm can rotate along the horizontal axis;

[0031] The vertical rocker arm is connected to the horizontal rocker arm through a second bearing, and the vertical rocker arm can rotate along the vertical axis.

[0032] The horizontal rocker arm is connected to the transfer frame through a bearing, and the two vertical rocker arms are connected to the horizontal rocker arm through bearings. The product is fixed on the fixed seat. When the product is transported, the product swings under the action of its own inertia, and the fixed seat swings at the same time as the product, thereby enabling the horizontal rocker arm to swing in the horizontal direction and the vertical rocker arm to swing in the vertical direction.

[0033] Furthermore, the entire transfer device is installed on a special truck through a transfer frame.

[0034] Furthermore, a quick locking device is provided at the edge of the mounting seat, and the quick locking device is used to fix the product and the mounting seat.

[0035] Furthermore, a zero-position locking mechanism is provided at the connection between the vertical rocker arm and the horizontal rocker arm, and the horizontal rocker arm and the vertical rocker arm are fixed by the zero-position locking mechanism.

[0036] Furthermore, the horizontal rocker arm comprises two vertical rocker arm connecting sections and a mounting section, wherein the vertical rocker arm connecting section is connected to the mounting section, and the mounting section is mounted on the transfer frame through a first bearing;

[0037] A spring buffer limit cylinder is installed on the horizontal rocker arm, one end of the spring buffer limit cylinder is connected to the transfer frame, and the other end is connected to the installation section.

[0038] Furthermore, the transfer frame is composed of rectangular tubes of different specifications welded together.

[0039] Furthermore, the hydraulic buffer cylinder on one of the vertical rocker arms is connected to the transfer frame and the horizontal rocker arm through a connecting arm, and the damping cylinder and the connecting arm are installed through a pin and a retaining spring; the damping system on the other vertical rocker arm is arranged in a mirror-symmetrical manner with it.

[0040] Furthermore, the spring buffer limit cylinder includes a cylinder body, a piston rod, a buffer spring, a spring seat, an end cover, and a connecting support ear. The spring buffer limit cylinder is connected to the transfer frame and the horizontal rocker arm through a connecting support arm. The spring buffer limit cylinder is connected to the horizontal rocker arm and the vertical rocker arm through a connecting support arm. The buffer cylinder and the connecting support arm are installed by a pin and a retaining ring.

[0041] Furthermore, the zero-position locking mechanism fixes the horizontal rocker arm to the side bracket of the transfer frame through a locking pin, and fixes the vertical rocker arm to the horizontal rocker arm through a locking pin.

[0042] like Figure 1As shown, a self-leveling vertical transport device for solid rocket engines includes a transport frame 1, a horizontal rocker arm 2, a vertical rocker arm 3, a mounting seat 4, a hydraulic damping cylinder 5, a spring buffer limit cylinder 6, a connecting arm 7, a zero-position locking mechanism 8, and a product quick locking device 9; the transport frame 1 is fixed to a special truck by high-strength bolts; the horizontal rocker arm 2 is connected to the transport frame 1 by a bearing, and the horizontal rocker arm 2 can rotate along the connection; the vertical rocker arm 3 is connected to the horizontal rocker arm 2 by a bearing, and the vertical rocker arm 3 can rotate along the connection The 4 spring buffer cylinders are connected to the horizontal rocker arm 2 and the transfer frame 1, the vertical rocker arm 3 and the horizontal rocker arm 4 through the connecting arm 7. The hydraulic damping cylinder 5 applies a damping force to the horizontal rocker arm 2 and the vertical rocker arm 3 to prevent the swing, so as to ensure that the product changes slowly with the swing angle of the horizontal rocker arm 2 and the vertical rocker arm 3 during the transportation process; the 4 spring buffer cylinders are connected to the horizontal rocker arm 2 and the transfer frame 1, the vertical rocker arm 3 and the horizontal rocker arm 4 through the connecting arm 7; Figure 1 and Figure 2 The zero-position locking mechanism 8 shown fixes the horizontal rocker arm 2 to the transfer frame 1 and the vertical rocker arm 3 to the horizontal rocker arm 2 through the locking pin 10. When lifting / unloading the product, the locking pin 10 is inserted into the locking hole to ensure stability during loading and unloading of the product; the product quick locking device 9 fixes the product base, and the fixation is simple and convenient.

[0043] The horizontal rocker arm is connected to the transfer frame through a bearing, and the two vertical rocker arms are connected to the horizontal rocker arm through bearings. The product is fixed on the fixed seat. When the product is transported, the product swings under the action of its own inertia, and the fixed seat swings at the same time as the product, thereby enabling the horizontal rocker arm to swing in the horizontal direction and the vertical rocker arm to swing in the vertical direction.

[0044] Figure 3 This is a schematic diagram of product transfer. During the product transfer process, relying on its own gravity, the product can swing back and forth and left and right along the direction of the truck's movement. When road conditions change, the product is protected from external impact and the propellant inside the product is prevented from shaking.

[0045] The present invention has many specific application paths. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements can be made without departing from the principles of the present invention. These improvements should also be considered as the scope of protection of the present invention.

Claims

1. A self-leveling vertical transport device for solid rocket engines, characterized in that: The transfer device comprises a horizontal rocker arm, a vertical rocker arm, a mounting seat, a hydraulic damping cylinder, a spring buffer limit cylinder, a connecting arm and a zero-position locking mechanism; wherein two vertical rocker arms are vertically mounted on the mounting seat, the top ends of the vertical rocker arms are respectively connected to the two ends of the horizontal rocker arm, and the horizontal rocker arm is in an open rectangular shape, with the opening located directly above the mounting seat for accommodating the product; The vertical rocker arm is provided with a damping system consisting of a hydraulic damping cylinder, a spring buffer limit cylinder, and a connecting arm. One end of the hydraulic damping cylinder, the spring buffer limit cylinder, and the connecting arm are connected to the vertical rocker arm, and the other end is connected to a rocker arm of the horizontal rocker arm, playing a supporting and buffering role; The horizontal rocker arm is connected to the transfer frame through a first bearing, and the horizontal rocker arm can rotate along the horizontal axis; The vertical rocker arm is connected to the horizontal rocker arm through a second bearing, and the vertical rocker arm can rotate along the vertical axis; A quick locking device is provided at the edge of the mounting seat, and the quick locking device is used to fix the product and the mounting seat; The hydraulic buffer cylinder on one of the vertical rocker arms is connected to the transfer frame and the horizontal rocker arm through a connecting arm, and the damping cylinder and the connecting arm are installed through a pin and a retaining spring; the damping system on the other vertical rocker arm is set in a mirror-symmetrical manner; The spring buffer limit cylinder includes a cylinder body, a piston rod, a buffer spring, a spring seat, an end cover, and a connecting lug. The spring buffer limit cylinder is connected to the transfer frame and the horizontal rocker arm through a connecting arm. The spring buffer limit cylinder is connected to the horizontal rocker arm and the vertical rocker arm through a connecting arm. The buffer cylinder and the connecting arm are installed by a pin and a retaining ring.

2. The self-leveling vertical transport device for solid rocket engines according to claim 1, characterized in that: The entire transfer device is installed on a special truck through a transfer frame.

3. The self-leveling vertical transport device for solid rocket engines according to claim 1, characterized in that: A zero-position locking mechanism is provided at the connection between the vertical rocker arm and the horizontal rocker arm, and the horizontal rocker arm and the vertical rocker arm are fixed by the zero-position locking mechanism.

4. A self-leveling vertical transport device for solid rocket engines according to any one of claims 1 to 3, characterized in that: The horizontal rocker arm comprises two vertical rocker arm connecting sections and a mounting section, wherein the vertical rocker arm connecting section is connected to the mounting section, and the mounting section is mounted on the transfer frame through a first bearing; A spring buffer limit cylinder is installed on the horizontal rocker arm, one end of the spring buffer limit cylinder is connected to the transfer frame, and the other end is connected to the installation section.

5. The self-leveling vertical transport device for solid rocket engines according to claim 2, characterized in that: The transfer frame is formed by welding rectangular tubes of different specifications.

6. The self-leveling vertical transport device for solid rocket engines according to claim 1, characterized in that: The zero-position locking mechanism fixes the horizontal rocker arm to the side bracket of the transfer frame through a locking pin, and fixes the vertical rocker arm to the horizontal rocker arm through a locking pin.

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