Horizontal spiral suspender connecting device of spiral ship unloader

Abstract

The invention relates to the technical field of conveying, in particular to a spiral ship unloader horizontal spiral suspender connecting device which comprises a fixing block, a barrel is fixedly mounted in the fixing block, a rotating sleeve is rotatably mounted in the barrel, a cavity is formed in the rotating sleeve, and a fixing rod is fixedly mounted on the upper end face of the fixing block; and the detection assembly comprises a disc arranged in the cavity, and a plurality of long rods are arranged on one side of the disc in a circumferential array mode. The eccentric force direction of the spiral ship unloader is monitored in real time through the detection assembly, the extrusion amplitude of a top head to a disc can be dynamically adjusted in combination with a hydraulic driving system of the correction assembly, automatic correction of the coaxiality of the horizontal spiral suspender and the spiral ship unloader is achieved, and the pressure change of hydraulic oil is transmitted to the corrugated telescopic cover through the sliding sleeve; and axis deviation caused by eccentric force is effectively counteracted, the operation stability of equipment is improved, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of conveying, and particularly relates to a connecting device for a horizontal spiral boom of a screw ship unloader. Background Art

[0002] A screw ship unloader is a cargo unloading device that uses a spiral body to rotate and push materials, and its working principle is similar to that of a propeller: when the spiral body rotates, the materials are continuously pushed along a pipeline or track to a specified position by friction. The horizontal spiral boom, as a key component of this device, mainly undertakes the functions of supporting the rotating structure of the screw conveyor and guiding its operation.

[0003] In actual operation, the screw ship unloader and the horizontal spiral boom usually achieve power transmission through a mechanical connecting device. Taking the patent CN101823615B as an example, although the screw conveyor disclosed in it realizes material transportation through a connecting device, when the material distribution is uneven, an eccentric force is easily formed due to the difference in local resistance during the rotation of the spiral body. This force imbalance phenomenon will affect the stability of the device from two aspects: First, the eccentric force is directly transmitted to the connecting device through the spiral body, causing fasteners such as bolts and flanges to bear periodic alternating loads; Second, long-term eccentric operation may cause the axis deviation between the boom and the spiral body, exacerbating mechanical wear and even causing structural deformation; Eccentric operation will force the coaxiality between the boom and the spiral body to gradually deviate from the design value. In the light case, it will exacerbate the uneven wear of the bearing and the spiral blade, and in the severe case, it will cause the boom to bend and deform. Such mechanical damage not only shortens the service life of the device, but also leads to abnormal gaps in the spiral channel. Summary of the Invention

[0004] Aiming at the above-mentioned disadvantages of the prior art, the present invention provides a connecting device for a horizontal spiral boom of a screw ship unloader, which can effectively solve the problem of eccentric force caused by uneven material distribution in the prior art during material transportation.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: The present invention provides a connecting device for a horizontal spiral boom of a screw ship unloader, including: A fixed block, inside which a cylinder is fixedly installed, a rotating sleeve is rotatably installed inside the cylinder, a cavity is opened inside the rotating sleeve, and a fixed rod is fixedly installed on the upper end surface of the fixed block; A detection component, the detection component includes a disc arranged inside the cavity, a plurality of long rods are circumferentially arranged on one side of the disc, a clamping block is fixedly installed at one end of each long rod, a chute is opened at one end of the rotating sleeve, and a plurality of elastic pieces are integrally formed on the inner wall of the chute at one end of the rotating sleeve; Correction component, the correction component includes a plurality of protective covers arranged inside the cavity and on one side of the disc. One end of the protective cover close to the disc is integrally formed with a corrugated telescopic cover. A hydraulic pipe is arranged inside the protective cover. A pressure detection element is arranged on the inner wall of the hydraulic pipe. A sliding sleeve is installed on the outer wall of the hydraulic pipe in a limited sliding manner near the disc. A top head is fixedly installed at one end of the sliding sleeve close to the disc.

[0006] Preferably, a partition is fixedly installed on the inner wall of the rotating sleeve at a position far from the protective cover. A fixed head is fixedly installed on the side of the partition far from the disc. A plurality of card slots are arranged in a circumferential array on the outer wall of the fixed head. A sliding barrel is sleeved on the outer wall of the fixed head. A plurality of movable blocks are fixedly installed in a circumferential array on the inner wall of the sliding barrel. A first connecting disc is installed on the outer wall of the sliding barrel.

[0007] Preferably, a short shaft is fixedly installed on the side of the partition close to the disc. A telescopic pipe is installed on the outer wall of the short shaft in a limited sliding manner. A contact piece is fixedly installed at one end of the telescopic pipe close to the disc. The contact piece is connected to an external power source. A groove is arranged on the side of the contact piece close to the disc. A voltage detection element is fixedly installed on the side of the disc close to the partition. A contact head is fixedly installed on one side of the voltage detection element. The contact head is in contact connection with the groove. The voltage detection element is connected to a controller and an alarm device. The contact piece is electrically connected to the contact head. A first spring is fixedly installed between the contact piece and the partition.

[0008] Preferably, a plurality of mounting seats are fixedly installed in a circumferential array on the side of the disc close to the elastic piece. A movable head is rotatably installed inside the mounting seat. The movable head is rotatably connected to a long rod. One end of the long rod penetrates through the rotating sleeve and extends into the sliding groove. A second spring is fixedly installed between the disc and the rotating sleeve.

[0009] Preferably, a second connecting disc is fixedly installed inside the rotating sleeve at a position far from the elastic piece. A fixed disc is fixedly installed on the side of the second connecting disc close to the disc. A plurality of brackets are fixedly installed in a circumferential array on one side of the fixed disc. One ends of the brackets are jointly fixedly installed with an oil box.

[0010] Preferably, a plurality of fixed pipes are embedded on the outer wall of the oil box. An infusion pipe is fixedly installed on the inner wall of the fixed pipe. An electromagnetic valve is fixedly installed on the inner wall of the infusion pipe. The infusion pipe is communicated with the hydraulic pipe. The oil box, the infusion pipe, and the hydraulic pipe are filled with hydraulic oil.

[0011] Preferably, a hydraulic device is fixedly installed between the fixed disc and the oil box. The output end of the hydraulic device penetrates through the oil box and is fixedly installed with a piston plate. The piston plate is in airtight sliding connection with the inner wall of the oil box.

[0012] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects: First, the detection component monitors the direction of the eccentric force of the screw ship unloader in real time. Combined with the hydraulic drive system of the correction component, the extrusion amplitude of the head on the disc can be dynamically adjusted to achieve automatic correction of the coaxiality of the horizontal screw boom and the screw ship unloader. The pressure change of the hydraulic oil is transmitted to the corrugated telescopic cover through the sliding sleeve, driving the disc to reset, effectively offsetting the axis deviation caused by the eccentric force, and improving the operating stability and service life of the equipment.

[0013] Second, when the screw ship unloader bends beyond the preset threshold due to excessive eccentric force, the electrical connection between the contact piece and the contact head is interrupted, triggering the voltage detection element to send a signal to the controller, and the linkage alarm device issues a warning, reminding the operator to intervene in time. This mechanism can avoid the continuous operation of the equipment under abnormal conditions, prevent further deterioration of structural deformation or mechanical damage, and ensure the safety and reliability of operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the structure of the present invention in section; Figure 3 It is a schematic cross-sectional structural diagram of the detection assembly of the present invention; Figure 4 It is a schematic cross-sectional structural diagram of the telescopic tube of the present invention; Figure 5 It is a schematic cross-sectional structural diagram of the sliding barrel of the present invention; Figure 6 is a schematic cross-sectional structural diagram of the correction assembly of the present invention; Figure 7 for Figure 6 Enlarged structural diagram at A in the middle.

[0016] Reference numerals: 1, fixed block; 101, cylinder body; 102, rotating sleeve; 2, fixed rod; 3, cavity; 4, detection assembly; 401, chute; 402, elastic piece; 403, disc; 404, voltage detection element; 405, contact head; 406, contact piece; 407, telescopic tube; 408, short shaft; 409, first spring; 410, partition board; 411, fixed head; 412, clamping groove; 413, sliding barrel; 414, movable block; 415, first connecting disc; 416, mounting seat; 417, movable head; 418, long rod; 419, clamping block; 420, second spring; 5, correction assembly; 501, second connecting disc; 502, fixed disc; 503, support; 504, oil box; 505, hydraulic device; 506, piston plate; 507, fixed tube; 508, protective cover; 509, corrugated telescopic cover; 510, infusion tube; 511, hydraulic tube; 512, sliding sleeve; 513, top head. Detailed implementation manners

[0017] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts fall within the scope of protection of the present invention.

[0018] The present invention will be further described below with reference to the embodiments.

[0019] Embodiment: Refer to Figures 1 to 7 , a horizontal screw boom connection device for a screw ship unloader, comprising: A fixed block 1, inside which a cylinder body 101 is fixedly installed, a rotating sleeve 102 is rotatably installed inside the cylinder body 101, a cavity 3 is provided inside the rotating sleeve 102, a fixed rod 2 is fixedly installed on the upper end surface of the fixed block 1, and the mating surface of the rotating sleeve 102 and the cylinder body 101 is nitrided, and the surface hardness ≥ HV900; A detection assembly 4, the detection assembly 4 includes a disc 403 provided inside the cavity 3, a plurality of long rods 418 are circumferentially arranged on one side of the disc 403, a clamping block 419 is fixedly installed at one end of the long rod 418, a chute 401 is provided at one end of the rotating sleeve 102, and a plurality of elastic pieces 402 are integrally formed on the inner wall of the chute 401 at one end of the rotating sleeve 102. During the process of being squeezed and deformed, the elastic pieces 402 will reduce the distance between the chutes 401, and during the process of reducing the distance, the clamping block 419 will be squeezed. One side of the clamping block 419 close to the axis of the rotating sleeve 102 is provided as an inclined surface, which can enable the elastic pieces 402 to effectively squeeze the clamping block 419; Correction component 5. The correction component 5 includes a plurality of protective covers 508 disposed inside the cavity 3 and on one side of the disk 403. An integrally formed corrugated telescopic cover 509 is provided at one end of the protective cover 508 close to the disk 403. The corrugated telescopic cover 509 and the protective cover 508 are disposed outside the hydraulic pipe 511. The corrugated telescopic cover 509 can be compressed during the movement of the top head 513 and the sliding sleeve 512. The corrugated telescopic cover 509 and the protective cover 508 can effectively protect the top head 513 and the sliding sleeve 512, preventing external oil stains or dirt from entering between the sliding sleeve 512 and the hydraulic pipe 511, preventing sliding jamming. A hydraulic pipe 511 is disposed inside the protective cover 508. A pressure detection element is provided on the inner wall of the hydraulic pipe 511. The pressure detection element is an existing device, a sensor for measuring and monitoring pressure changes. They can sense and convert the pressure acting on them (usually liquid or gas pressure) into a measurable electrical signal. A sliding sleeve 512 is installed in a limited sliding manner on the outer wall of the hydraulic pipe 511 and at a position close to the disk 403. A top head 513 is fixedly installed at one end of the sliding sleeve 512 close to the disk 403.

[0020] Refer to Figures 2 to 5, a partition plate 410 is fixedly installed on the inner wall of the rotating sleeve 102 and at a position far from the protective cover 508. A fixed head 411 is fixedly installed on the side of the partition plate 410 away from the disc 403. A plurality of card slots 412 are circumferentially arrayed on the outer wall of the fixed head 411. A sliding barrel 413 is sleeved on the outer wall of the fixed head 411. A plurality of movable blocks 414 are fixedly installed on the inner wall of the sliding barrel 413 in a circumferential array. A first connecting plate 415 is installed on the outer wall of the sliding barrel 413. A short shaft 408 is fixedly installed on the side of the partition plate 410 close to the disc 403. A telescopic tube 407 is installed on the outer wall of the short shaft 408 in a limited sliding manner. A contact piece 406 is fixedly installed at one end of the telescopic tube 407 close to the disc 403. The contact piece 406 is connected to an external power supply. A groove is formed on the side of the contact piece 406 close to the disc 403. A voltage detection element 404 is fixedly installed on the side of the disc 403 close to the partition plate 410. The voltage detection element 404 is an existing device, a sensor or element for measuring voltage changes. Its main function is to convert the voltage signal into a readable output signal. A contact head 405 is fixedly installed on one side of the voltage detection element 404. The contact head 405 is in contact connection with the groove. The voltage detection element 404 is connected to a controller and an alarm device. The alarm device is an existing buzzer alarm device. The contact piece 406 is electrically connected to the contact head 405. A first spring 409 is fixedly installed between the contact piece 406 and the partition plate 410. The external power supply is connected to the contact piece 406 through a wire. During the process of the contact head 405 rotatingly connecting with the groove, the voltage is transmitted from the contact piece 406 to the contact head 405. The provided voltage detection element 404 can effectively detect the voltage on the contact head 405 and generate corresponding electrical signals. A plurality of mounting seats 416 are fixedly installed on the side of the disc 403 close to the elastic piece 402 in a circumferential array. A movable head 417 is rotatably installed inside the mounting seat 416. The movable head 417 is rotatably connected to the long rod 418. One end of the long rod 418 penetrates through the rotating sleeve 102 and extends into the sliding groove 401. A second spring 420 is fixedly installed between the disc 403 and the rotating sleeve 102.

[0021] Refer to Figures 6 to 7, inside the rotating sleeve 102 and at a position far from the elastic piece 402, a second connection disk 501 is fixedly installed. On the side of the second connection disk 501 close to the disk 403, a fixed disk 502 is fixedly installed. On one side of the fixed disk 502, a plurality of brackets 503 are fixedly installed in a circumferential array. One ends of the brackets 503 are fixedly installed together with an oil box 504. A plurality of fixed tubes 507 are embedded on the outer wall of the oil box 504. An infusion tube 510 is fixedly installed on the inner wall of the fixed tube 507. An electromagnetic valve is fixedly installed on the inner wall of the infusion tube 510. The electromagnetic valve is a conventional device. The working principle of the electromagnetic valve is based on electromagnetic induction. When an electric current passes through the electromagnetic coil, a magnetic field is generated, attracting or repelling the valve core, causing the valve to open or close. The infusion tube 510 is communicated with a hydraulic tube 511. The oil box 504, the infusion tube 510, and the hydraulic tube 511 are filled with hydraulic oil. A hydraulic device 505 is fixedly installed between the fixed disk 502 and the oil box 504. The hydraulic device 505 uses an existing hydraulic cylinder, mainly used to push the piston plate 506 to slide airtightly inside the oil box 504 and extrude the hydraulic oil arranged inside the oil box 504. The output end of the hydraulic device 505 penetrates through the oil box 504 and is fixedly installed with a piston plate 506. The piston plate 506 is airtightly slidably connected with the inner wall of the oil box 504.

[0022] The working principle of the present invention is as follows: The screw unloader is installed on the first connection disk 415 through a flange, and the horizontal screw boom is installed on the second connection disk 501 through a flange. When the horizontal screw boom is driven to rotate, the horizontal screw boom drives the rotating sleeve 102 through the second connection disk 501 to drive the first connection disk 415 and the screw unloader to rotate. When an eccentric moment appears during the process of the screw unloader transporting materials, the screw unloader and the horizontal screw boom will have a phenomenon of different axes. This phenomenon of different axes will cause an eccentric force when the horizontal screw boom is transmitted with the screw unloader. When an eccentric force appears on the screw unloader, the screw unloader will be bent, and the screw unloader will squeeze the elastic piece 402 in one direction; Suppose the screw unloader moves towards Figure 2When the lowest elastic piece 402 among them is squeezed, the first connection disc 415 will be deflected as a whole towards the lowest elastic piece 402. When the first connection disc 415 is deflected, it will drive the sliding barrel 413 to rotate on the outer wall of the fixed head 411. The outer wall of the screw unloader will squeeze the edge of the lowest elastic piece 402 to deform the elastic piece 402. The deformed elastic piece 402 will squeeze the clamping block 419 to drive the long rod 418 to move in the chute 401. The moving long rod 418 will be rotationally connected to the mounting seat 416 through the movable head 417 to drive the disc 403 to move, so that the disc 403 deflects along the direction of the eccentric force of the screw unloader. The deflected disc 403 will squeeze the corrugated expansion cover 509 and the top head 513, so that the top head 513 drives the sliding sleeve 512 to slide on the outer wall of the hydraulic pipe 511, and compresses the hydraulic oil in the hydraulic pipe 511. The pressure detection element arranged in the squeezed hydraulic pipe 511 detects the pressure change of the hydraulic oil to generate a corresponding electrical signal. The controller controls the voltage of the solenoid valve and the hydraulic device 505 input into each infusion pipe 510 through the generated electrical signal, so that the valve core of the solenoid valve opens, and communicates with the infusion pipe 510 communicated with the squeezed hydraulic pipe 511 (the hydraulic oil pressure of the non-squeezed hydraulic pipe 511 does not change, so the pressure detection element does not generate an electrical signal). The arranged hydraulic device 505 will drive the piston plate 506 to slide airtightly inside the oil box 504 to squeeze the hydraulic oil in the oil box 504, so that the hydraulic oil enters the interior of the squeezed hydraulic pipe 511 through the infusion pipe 510. The hydraulic oil entering the interior of the hydraulic pipe 511 will generate a hydraulic pressure, and the generated hydraulic pressure will push the top head 513 to drive the sliding sleeve 512 to slide on the outer wall of the hydraulic pipe 511. The moving top head 513 will push the corrugated expansion cover 509 to expand and squeeze the disc 403, so that the disc 403 is driven from the deflected state to a state where it is horizontal with the first connection disc 415 and the second connection disc 501. The squeezed disc 403 will drive the mounting seat 416 to squeeze the movable head 417, so that the movable head 417 drives the long rod 418 and the clamping block 419 to slide in the chute 401. The clamping block 419 will contact the squeezed and deformed elastic piece 402, so that the elastic piece 402 squeezes the screw unloader in the direction of the eccentric force bending of the screw unloader, corrects the screw unloader, and makes the screw unloader and the horizontal screw boom maintain a coaxial horizontal state; It should be noted that when the disc 403 is driven to deflect at an excessively large angle, for example, deflecting downward, the top head 513 at the bottom will be squeezed to cause the largest movement amplitude, and the top heads 513 on the left and right will also be squeezed to a certain extent by the disc 403, and the hydraulic oil arranged inside the hydraulic pipe 511 will also produce different degrees of hydraulic pressure, and the arranged pressure detection element will generate different electrical signals according to the hydraulic pressure. The controller controls the voltage input to each solenoid valve through the generated electrical signal, so that the valve core opening size of the solenoid valve is equal to the electrical signal generated by the pressure detection element, so that when the hydraulic oil in the oil box 504 is squeezed, it enters the hydraulic pipe 511 through the solenoid valve with different valve core opening degrees and the infusion pipe 510, and drives the top head 513 to squeeze the disc 403 with different degrees of movement amplitude, so as to calibrate the screw ship unloader; When the screw ship unloader is fed unevenly and serious eccentric force occurs, causing the screw ship unloader to be severely bent, the disc 403 will also be deflected by the same amplitude due to the bending of the screw ship unloader, and the disc 403 will drive the voltage detection element 404 and the contact head 405 to deflect together. When the disc 403 deflects at a certain angle, the voltage detection element 404 and the contact head 405 deflect together, and the first spring 409 provided will drive the contact piece 406 to approach the contact head 405 and maintain the contact state. When the disc 403 drives the voltage detection element 404 and the contact head 405 to deflect at an angle that is too large, the moving distance of the contact piece 406 cannot maintain contact with the contact head 405 (the contact piece 406 is connected to the short shaft 405 through the telescopic tube 407). 08 slides toward the contact head 405, while the sliding distance between the telescopic tube 407 and the short shaft 408 is shorter). When the contact piece 406 and the contact head 405 maintain contact, the contact piece 406 supplies power to the contact head 405 and the voltage detection element 404 through an external power supply. When the contact piece 406 and the contact head 405 do not maintain contact, the set voltage detection element 404 will detect the disappearance of the circulating voltage and generate an electrical signal. The controller controls the alarm device to sound an alarm through the generated electrical signal, thereby reminding the personnel that the bending angle of the screw ship unloader is too large and it is not suitable to continue to transport materials. Moreover, when the voltage detection element detects the poor contact signal for three consecutive times, the controller automatically cuts off the power input of the screw ship unloader.

[0023] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A connecting device for the horizontal spiral boom of a screw ship unloader, characterized in that, Including: A fixed block (1), inside which a cylinder body (101) is fixedly installed. Inside the cylinder body (101), a rotating sleeve (102) is rotatably installed. A cavity (3) is formed inside the rotating sleeve (102). On the upper end face of the fixed block (1), a fixed rod (2) is fixedly installed. A detection component (4), which includes a disc (403) arranged inside the cavity (3). On one side of the disc (403), a plurality of long rods (418) are arranged in a circumferential array. At one end of each long rod (418), a clamping block (419) is fixedly installed. A chute (401) is formed at one end of the rotating sleeve (102). On the inner wall of the chute (401) at one end of the rotating sleeve (102), a plurality of elastic pieces (402) are integrally formed. A correction component (5), which includes a plurality of protective covers (508) arranged inside the cavity (3) and on one side of the disc (403). At one end of the protective cover (508) close to the disc (403), a corrugated telescopic cover (509) is integrally formed. Inside the protective cover (508), a hydraulic pipe (511) is arranged. A pressure detection element is arranged on the inner wall of the hydraulic pipe (511). A sliding sleeve (512) is installed on the outer wall of the hydraulic pipe (511) in a limit sliding manner at a position close to the disc (403). At one end of the sliding sleeve (512) close to the disc (403), a top head (513) is fixedly installed.

2. The horizontal screw boom connecting device of a screw ship unloader according to claim 1, characterized in that On the inner wall of the rotating sleeve (102) and at a position far from the protective cover (508), a partition plate (410) is fixedly installed. On the side of the partition plate (410) far from the disc (403), a fixed head (411) is fixedly installed. A plurality of card slots (412) are formed in a circumferential array on the outer wall of the fixed head (411). A sliding barrel (413) is sleeved on the outer wall of the fixed head (411). A plurality of movable blocks (414) are fixedly installed in a circumferential array on the inner wall of the sliding barrel (413). A first connection disc (415) is installed on the outer wall of the sliding barrel (413).

3. The horizontal screw boom connecting device of a screw ship unloader according to claim 2, characterized in that, On the side of the partition plate (410) close to the disc (403), a short shaft (408) is fixedly installed. A telescopic pipe (407) is installed on the outer wall of the short shaft (408) in a limit sliding manner. At one end of the telescopic pipe (407) close to the disc (403), a contact piece (406) is fixedly installed. The contact piece (406) is connected to an external power supply. A groove is formed on the side of the contact piece (406) close to the disc (403). On the side of the disc (403) close to the partition plate (410), a voltage detection element (404) is fixedly installed. On one side of the voltage detection element (404), a contact head (405) is fixedly installed. The contact head (405) is in contact connection with the groove. The voltage detection element (404) is connected to a controller and an alarm device. The contact piece (406) is electrically connected to the contact head (405). A first spring (409) is fixedly installed between the contact piece (406) and the partition plate (410).

4. A horizontal screw boom connection device of a screw ship unloader according to claim 3, characterized in that On the side of the disc (403) close to the elastic piece (402), a plurality of mounting seats (416) are fixedly installed in a circumferential array. An active head (417) is rotatably installed inside the mounting seat (416). The active head (417) is rotatably connected to a long rod (418). One end of the long rod (418) penetrates through the rotating sleeve (102) and extends into the sliding groove (401). A second spring (420) is fixedly installed between the disc (403) and the rotating sleeve (102).

5. A horizontal screw boom connection device for a screw ship unloader according to claim 1, characterized in that, Inside the rotating sleeve (102) and at a position far from the elastic piece (402), a second connecting disc (501) is fixedly installed. A fixed disc (502) is fixedly installed on the side of the second connecting disc (501) close to the disc (403). A plurality of brackets (503) are fixedly installed in a circumferential array on one side of the fixed disc (502). One ends of the brackets (503) are fixedly installed together to form an oil box (504).

6. The horizontal screw boom connection device of a screw unloader according to claim 5, characterized in that, A plurality of fixed tubes (507) are embedded in the outer wall of the oil box (504). An infusion tube (510) is fixedly installed on the inner wall of the fixed tube (507). An electromagnetic valve is fixedly installed on the inner wall of the infusion tube (510). The infusion tube (510) is communicated with a hydraulic tube (511). The oil box (504), the infusion tube (510), and the hydraulic tube (511) are filled with hydraulic oil.

7. The horizontal screw boom connecting device of a screw ship unloader according to claim 6, characterized in that, A hydraulic device (505) is fixedly installed between the fixed disc (502) and the oil box (504). The output end of the hydraulic device (505) penetrates through the oil box (504) and is fixedly installed with a piston plate (506). The piston plate (506) is hermetically slidably connected to the inner wall of the oil box (504).

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