An automatic alignment adjusting mechanism for a truck loading and unloading crane

Abstract

The application discloses an automatic alignment adjusting mechanism for a crane pipe for loading and unloading a vehicle, belongs to the technical field of fluid loading and unloading equipment, and is characterized in that a vertical pipe joint shaft sleeve inner ring is arranged on a vertical pipe, a vertical pipe joint shaft sleeve outer ring is sleeved on the vertical pipe joint shaft sleeve inner ring, a joint bearing positioning sleeve and a limiting folding plate are arranged on the vertical pipe joint shaft sleeve outer ring, a set of limiting locking plates are arranged on the joint bearing positioning sleeve, a top sleeve is arranged on the vertical pipe, a rotating bearing sliding sleeve is sleeved on the vertical pipe, a vertical transverse linear straight line device is installed on a fixing frame, a pushing and lifting mechanism is installed on the vertical transverse linear straight line device, the pushing and lifting mechanism is connected with the rotating bearing sliding sleeve through a spring, the pushing and lifting mechanism is matched with the joint bearing positioning sleeve to realize two matching states of accurate positioning and coarse positioning and realize a locking reset function, and a guide automatic locking quick connector is arranged at the other end of the vertical pipe. The application solves the problems of difficult alignment and the need for multiple alignment and is mainly applied to fluid loading and unloading.

Description

Technical Field

[0001] This invention belongs to the field of fluid loading and unloading equipment technology, specifically an automatic alignment and adjustment mechanism for the loading arm of a car. Background Technology

[0002] A loading arm for trucks is a specialized piece of equipment used for loading and unloading materials from trucks. It is widely used in industries such as petroleum and chemical processing. It connects to the tank truck's interface and guides materials into or out of the tank.

[0003] Automatic loading arms are now being introduced into the market, adding an automatic control mechanism to the existing manual loading and unloading mechanism, which can realize the function of automatic loading and unloading of loading arms.

[0004] The automated loading and unloading arm system for trucks basically achieves automated loading and unloading functions. The visualization system automatically identifies the position of the tanker opening and, through the control system, outputs control parameters to control the drive mechanism, moving the loading arm's mechanical structure to insert the automatic locking quick-connect coupling into the tanker interface. After testing and confirming proper alignment, the automatic locking quick-connect coupling is successfully engaged. While the entire loading and unloading process is automated, manufacturing and installation errors, as well as limitations in the precision of the visualization mechanism, can lead to positional deviations when the automatic locking quick-connect coupling aligns with the tanker interface, resulting in alignment difficulties or requiring multiple alignment attempts. Furthermore, if the vehicle is not parked correctly or the road surface is uneven during loading and unloading, jamming may occur during the alignment of the automatic locking quick-connect coupling with the tanker interface. These issues affect work efficiency and user experience. Therefore, our company proposes an automatic alignment adjustment mechanism for truck loading and unloading arms. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic alignment and adjustment mechanism for loading arms of automobiles, so as to solve the problems of difficult alignment and the need for multiple alignments.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automatic alignment and adjustment mechanism for loading arms of automobiles, comprising a fixed frame, a vertical tube, a vertical and horizontal linear straight-line device, and a propulsion and lifting mechanism, characterized in that: an inner ring of a vertical tube joint bushing is provided on the vertical tube, an outer ring of the vertical tube joint bushing is fitted on the inner ring of the joint bushing, a joint bearing positioning sleeve and a limiting plate are provided on the outer ring of the vertical tube joint bushing, a set of limiting locking plates are provided on the joint bearing positioning sleeve, a top sleeve is provided on the vertical tube, and a rotating bearing sliding sleeve is fitted on the vertical tube;

[0007] A vertical and horizontal linear straight-line device is installed on the fixed frame, and a propulsion and lifting mechanism is installed on the vertical and horizontal linear straight-line device. The propulsion and lifting mechanism is connected to the rotating bearing sleeve by a spring. The propulsion and lifting mechanism cooperates with the spherical bearing positioning sleeve to achieve two cooperation states: precise positioning and coarse positioning, while also realizing the locking and reset function. A guide automatic locking quick connector is set at the other end of the vertical tube.

[0008] Preferably, the vertical and horizontal linear straightening device includes a horizontal linear straightening device and a vertical linear straightening device. The horizontal linear straightening device is mounted on a fixed frame, and the vertical linear straightening device is fixedly and vertically installed on the telescopic end of the horizontal linear straightening device. The vertical linear straightening device is fixedly connected to the propulsion and lifting mechanism.

[0009] Preferably, the vertical and horizontal linear straightening device includes a horizontal linear straightening device and a vertical linear straightening device. The vertical linear straightening device is mounted on a fixed frame, and the horizontal linear straightening device is fixedly and vertically mounted on the telescopic end of the vertical linear straightening device. The horizontal linear straightening device is fixedly connected to the propulsion and lifting mechanism.

[0010] Both of these methods provide horizontal and vertical movement, enabling the automatic locking quick-connect coupling to dock with the tank truck interface.

[0011] Preferably, the propulsion and lifting mechanism includes a control positioning rod I, a frustum, a control positioning rod II, a balance rod, a ball-head pusher, and a motor. The control positioning rod I, the frustum, and the control positioning rod II are connected in sequence. The control positioning rod I is fixedly connected to the vertical and horizontal linear straight-moving device. The control positioning rod II is guided and limited by the spherical bearing positioning sleeve. A balance rod is horizontally arranged on the control positioning rod I. A ball-head pusher is arranged on the balance rod on one side of the control positioning rod I. The ball-head pusher is horizontally pushed and limited by the limiting plate. A motor is arranged on the balance rod on the other side of the control positioning rod I. The motor rotation shaft passes through the balance rod. A locking plate is horizontally arranged on the motor rotation shaft.

[0012] When the locking plate enters the limit locking plate, it is in a locked state. This structure can achieve precise control or partial disengagement of the vertical pipe according to the working requirements of the vertical pipe. It can meet the requirement of precise control of the vertical pipe by the drive mechanism during the early stage of automatic alignment of the loading arm to align with the tank truck interface. It can also meet the requirement of relaxing some degrees of freedom of the vertical pipe during the later stage of automatic alignment of the loading arm, which relies on the guiding effect of the joint contact to guide the automatic locking quick connector to be flexibly and smoothly inserted into the tank truck interface, avoiding the restriction during the automatic alignment of the automatic locking quick connector. The movement of the locking plate can be realized by controlling the locking plate with a motor.

[0013] The vertical and horizontal linear straight-line device does not control the degrees of freedom in other directions of the vertical tube. The force is applied to the limiting plate through the ball head pusher, ensuring that the vertical tube is flexibly stressed even if there is a deviation in the direction of the vertical tube. This ensures that the guide automatic locking quick connector can be flexibly and smoothly connected to the tank truck interface.

[0014] Preferably, the guide automatic locking quick connector is equipped with an end face sealing ring to facilitate sealing when connected to the tank truck interface.

[0015] Preferably, the guide automatic locking quick connector has an embedded side sealing ring to facilitate sealing when connected to the tank truck interface.

[0016] The guide structure of the automatic locking quick-connect coupling effectively compensates for alignment difficulties and the need for multiple alignment attempts caused by positional deviations when docking the coupling with the tank truck interface. Even if there is a slight positional deviation during alignment, the flared structure at the opening of the automatic locking quick-connect coupling compensates for the deviation. The tank truck interface is then fitted onto the flared edge of the coupling, and the coupling is aligned with the tank truck interface. A double-layer sealing structure on both the end face and side of the coupling effectively ensures sealing performance.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] This invention improves the accuracy and alignment smoothness of the automatic locking quick-connect coupling for automated loading arms when docking with the tank truck interface, enhancing its versatility and reliability under various working conditions. It incorporates an inner ring of the joint bushing, an outer ring of the vertical tube joint bushing, and a rotating bearing sleeve. A spring connects the propulsion and lifting mechanism to the rotating bearing sleeve. This structure provides the vertical tube with freedom to relax during precise alignment while the vertical tube rotates, ensuring complete release of its freedom in all directions during accurate alignment. This avoids limitations during automatic alignment. The propulsion and lifting mechanism, in conjunction with the spring, prevents the vertical tube from falling under gravity. The thrust applied by the ball-head pusher to the limiting plate is unaffected by the vertical tube's rotation, allowing for consistently flexible propulsion. This achieves reliable and rapid docking of the automatic locking quick-connect coupling for automated loading arms with the tank truck interface. Attached Figure Description

[0019] Figure 1 This is a perspective view of the guide automatic locking quick connector of the present invention in the state of initial docking with the tank truck interface;

[0020] Figure 2 For the present invention Figure 1 Enlarged view of point A;

[0021] Figure 3 This is a perspective view of the guiding automatic locking quick connector of the present invention in the docking state with the tank truck interface;

[0022] Figure 4 For the present invention Figure 3Enlarged view of point B;

[0023] Figure 5 This is a partial cross-sectional view of the automatic locking quick connector of the present invention when it is connected to the tank truck interface. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] In one embodiment, see Figures 1 to 5 An automatic alignment and adjustment mechanism for loading arms of automobiles includes a fixed frame 1, a vertical tube 2, a vertical and horizontal linear straight-line device 4, and a propulsion and lifting mechanism 8. The mechanism is characterized in that: an inner ring 3 of a vertical tube joint bushing is provided on the vertical tube 2, an outer ring 5 of a vertical tube joint bushing is fitted on the inner ring 3, a joint bearing positioning sleeve 6 and a limiting folding plate 61 are provided on the outer ring 5 of the vertical tube joint bushing, a set of limiting locking plates 62 are provided on the joint bearing positioning sleeve 6, a top sleeve 7 is provided on the vertical tube 2, and a rotating bearing sliding sleeve 21 is fitted on the vertical tube 2.

[0026] A vertical and horizontal linear straight-line device 4 is installed on the fixed frame 1. A propulsion and lifting mechanism 8 is installed on the vertical and horizontal linear straight-line device 4. The propulsion and lifting mechanism 8 is connected to the rotating bearing sleeve 21 by a spring 9. The propulsion and lifting mechanism 8 cooperates with the joint bearing positioning sleeve 6 to achieve two cooperation states: precise positioning and coarse positioning, while simultaneously achieving the locking and reset function. A guide automatic locking quick connector 10 is set at the other end of the vertical tube 2.

[0027] In one embodiment, see Figures 1 to 4 The vertical and horizontal linear straight-line device 4 includes a horizontal linear straight-line device 41 and a vertical linear straight-line device 42. The horizontal linear straight-line device 41 is installed on the fixed frame 1, and the vertical linear straight-line device 42 is fixedly and vertically installed on the telescopic end of the horizontal linear straight-line device 41. The vertical linear straight-line device 42 is fixedly connected to the propulsion and lifting mechanism 8.

[0028] In one embodiment, see Figures 1 to 5The lifting mechanism 8 includes a control positioning rod I 81, a frustum 82, a control positioning rod II 83, a balance rod 84, a ball-head pusher 85, and a motor 86. The control positioning rod I 81, the frustum 82, and the control positioning rod II 83 are connected in sequence. The control positioning rod I 81 is fixedly connected to the vertical and horizontal linear straight-moving device 4. The control positioning rod II 83 is guided and limited by the joint bearing positioning sleeve 6. The balance rod 84 is horizontally arranged on the control positioning rod I 81. The ball-head pusher 85 is arranged on the balance rod 84 on one side of the control positioning rod I 81. The ball-head pusher 85 is horizontally pushed and limited by the limiting plate 61. The motor 86 is arranged on the balance rod 84 on the other side of the control positioning rod I 81. The rotating shaft of the motor 86 passes through the balance rod 84. A locking plate 87 is horizontally arranged on the rotating shaft of the motor 86.

[0029] In one embodiment, see Figure 5 An end face sealing ring 11 is provided inside the guide automatic locking quick connector 10, and a side sealing ring 12 is embedded inside the guide automatic locking quick connector 10.

[0030] In one embodiment, see Figures 1 to 5 The working principle of this invention is as follows:

[0031] The vehicle is parked in the loading / unloading bay. The guide automatic locking quick connector 10 enters the tank truck interface. During initial alignment, the control center issues a command to cause the locking plate 87 of the rotating shaft of the motor 86 to rotate, moving away from the limit locking plate 62. The lifting mechanism is connected to the vertical pipe 2 by a spring, which provides traction and prevents the vertical pipe from falling.

[0032] The locking plate 87 is inserted into the limiting locking plate 62 to overcome the gravity of the vertical tube 2 and prevent it from falling off. The balance bar 84 contacts the top sleeve 7, overcoming the gravity of the guide quick coupling 10 of the vertical tube 2 to ensure that the vertical tube 2 is horizontal and to ensure the precise hole space movement of the vertical tube 2 in the early stage of alignment. The vertical and horizontal linear straight-moving device 4 is lifted a certain distance, so that the frustum part 82 leaves the joint bearing positioning sleeve 6, leaving enough swing space for the vertical tube 2. The ball head pusher 85 is limited by the limiting folding plate 61 to prevent it from falling off. The vertical and horizontal linear straight-moving device 4 is pushed horizontally. The ball head pusher 85 acts on the limiting folding plate 61 and applies a pushing force to the vertical tube 2. The inner ring 3 of the joint bushing, the outer ring 5 of the vertical tube joint bushing, and the rotating bearing sliding sleeve 21 are simultaneously connected with the pushing and lifting mechanism 8 and the rotating bearing sliding sleeve 21 through the spring 9, so that the pushing force is not affected by the adjustment of the degrees of freedom in each direction when the vertical tube 2 is aligned, and can always be pushed flexibly. As the flared edge of the guide automatic locking quick connector 10 of pipe 2 gradually fits into the tank truck interface, the end face sealing ring 11 and the side sealing ring 12 on the guide automatic locking quick connector 10 effectively ensure the sealing between the automatic locking quick connector 10 and the tank truck interface. After the reset operation is completed and the loading is finished, the vertical and horizontal linear straight device 4 presses down, and the balance bar 84 abuts against the top sleeve 7, indicating that the vertical pipe 2 is in a horizontal position. At this time, the vertical linear straight device 42 is forced to stop pressing down. The control center receives feedback and issues a reset command. The motor 86 rotates the shaft, and the locking plate 87 rotates back to between the limit locking plates 62. At this time, the control center controls the vertical and horizontal linear straight device 4 to control the vertical pipe 2 to disengage from the tank truck interface and return to the return state.

[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their likenesses.

Claims

1. An automatic alignment and adjustment mechanism for loading arms of automobiles, comprising a fixed frame (1), a vertical tube (2), a vertical and horizontal linear straight-line device (4), and a propulsion and lifting mechanism (8), characterized in that: The vertical tube (2) is provided with a vertical tube joint bushing inner ring (3), the vertical tube joint bushing outer ring (5) is fitted on the joint bushing inner ring (3), the vertical tube joint bushing outer ring (5) is provided with a joint bearing positioning sleeve (6) and a limiting folding plate (61), a set of limiting locking plates (62) is provided on the joint bearing positioning sleeve (6), the vertical tube (2) is provided with a top sleeve (7), and the vertical tube (2) is fitted with a rotating bearing sliding sleeve (21). A vertical and horizontal linear straight-line device (4) is installed on the fixed frame (1). A propulsion and lifting mechanism (8) is installed on the vertical and horizontal linear straight-line device (4). The propulsion and lifting mechanism (8) is connected to the rotating bearing sleeve (21) by a spring (9). The propulsion and lifting mechanism (8) cooperates with the joint bearing positioning sleeve (6) to achieve both precise positioning and coarse positioning, and simultaneously achieves locking and reset functions. A guide automatic locking quick connector (10) is set at the other end of the vertical tube (2). The vertical and horizontal linear straight-line device (4) includes a horizontal linear straight-line device (41) and a vertical linear straight-line device (42). The horizontal linear straight-line device (41) is installed on the fixed frame (1). The vertical linear straight-line device (42) is fixedly and vertically installed on the telescopic end of the horizontal linear straight-line device (41). The vertical linear straight-line device (42) is fixedly connected to the propulsion and lifting mechanism (8). The lifting mechanism (8) includes a control positioning rod I (81), a frustum (82), a control positioning rod II (83), a balance rod (84), a ball head pusher (85), and a motor (86). The control positioning rod I (81), the frustum (82), and the control positioning rod II (83) are connected in sequence. The control positioning rod I (81) is fixedly connected to the vertical and horizontal linear straight-moving device (4). The control positioning rod II (83) is guided and limited by the joint bearing positioning sleeve (6). The balance rod (84) is horizontally set on the control positioning rod I (81). The ball head pusher (85) is set on the balance rod (84) on one side of the control positioning rod I (81). The ball head pusher (85) is horizontally pushed and limited by the limiting plate (61). The motor (86) is set on the balance rod (84) on the other side of the control positioning rod I (81). The rotating shaft of the motor (86) passes through the balance rod (84). The locking plate (87) is horizontally set on the rotating shaft of the motor (86).

2. The automatic alignment and adjustment mechanism for automobile loading arms according to claim 1, characterized in that: An end face sealing ring (11) is provided inside the guide automatic locking quick connector (10).

3. The automatic alignment and adjustment mechanism for automobile loading arms according to claim 2, characterized in that: The guide automatic locking quick connector (10) is embedded with the installation side sealing ring (12).

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