Horizontal anchor gear chain length measuring device

Abstract

The invention relates to the technical field of deck machinery, and discloses a horizontal anchor gear chain length measuring device which comprises a T-shaped mounting seat and a control box, a bearing seat is mounted in the center of the top of the T-shaped mounting seat, the inner wall of the bearing seat is rotatably connected with a front shaft through a bearing, the right end of the front shaft is connected with a chain length measuring assembly, and the chain length measuring assembly is connected with the control box. The left end of the front shaft is connected with a transmission assembly, and the transmission assembly is in transmission connection with a chain wheel shaft in the center of the cable lifter. The chain length measuring assembly comprises an L-shaped mounting seat, a T-shaped mounting seat and a bearing seat which are used for mounting a front shaft, the front shaft is used for connecting the transmission assembly and the chain length measuring assembly, the chain wheel shaft and the front shaft are connected together through the transmission assembly, and the front shaft transmits the rotation condition of the chain wheel shaft into the chain length measuring assembly. The rotation condition of the chain wheel shaft is analyzed through the chain length measuring assembly, then the rotation condition of the cable lifter is judged, and then the chain length of the anchor gear is measured.

Description

Technical Field

[0001] This invention relates to the field of deck machinery technology, specifically to a horizontal anchor winch chain length measuring device. Background Technology

[0002] As a core power unit on the deck, the length of the released anchor chain of a ship's anchor winch directly determines its berthing stability. A chain that is too short can lead to insufficient anchor holding power and ship displacement (especially in strong winds and fast currents), while a chain that is too long can cause the anchor chain to become entangled (sprocket shaft jamming), break (overload), or a surge in recovery energy consumption. Currently, commonly used measurement methods include using an encoder to identify sensing points on the anchor sprocket, or using a counter to measure the number of chain links. The encoder method relies on the state of the sensing points on the anchor sprocket; these points usually require additional setup and are difficult to maintain, and damage to the sensing points will affect the accuracy of chain length identification. The counter method requires manual calibration and is prone to false triggers, affecting measurement accuracy. Summary of the Invention

[0003] The purpose of this invention is to provide a horizontal anchor winch chain length measuring device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a horizontal anchor winch chain length measuring device, comprising a T-shaped mounting base and a control box, wherein a bearing seat is installed at the top center of the T-shaped mounting base, and a front shaft is rotatably connected to the inner wall of the bearing seat via a bearing, a chain length measuring component is connected to the right end of the front shaft, and a transmission component is connected to the left end of the front shaft, the transmission component being drively connected to the sprocket shaft at the center of the anchor chain wheel; The chain length measuring component includes an L-shaped mounting base, which is fixedly mounted on the outer wall of a T-shaped mounting base. The front shaft is rotatably connected to the L-shaped mounting base via a bearing. A connecting shaft is threaded into the right end of the L-shaped mounting base. An L-shaped mounting plate is installed on the outer wall of the L-shaped mounting base via screws. An absolute encoder is installed on the bottom of the L-shaped mounting plate. A flexible coupling is connected to the right end of the connecting shaft. The probe shaft of the absolute encoder is connected to the flexible coupling. A connecting cable is connected to the bottom of the absolute encoder and is connected to the signal input terminal of the control box.

[0005] Furthermore, the transmission assembly includes a rotating shaft, the right end of which is fixedly connected to a front shaft, a gear is fixedly mounted on the outer wall of the rotating shaft, a gear meshes with a gear, a rotating shaft is fixedly mounted on the inner wall of the gear, and the left end of the rotating shaft is fixedly connected to a sprocket shaft.

[0006] Furthermore, the number of teeth of the second gear is three times the number of teeth of the first gear, and the second gear is parallel to the central axis of the first rotating shaft.

[0007] Furthermore, the bearing housing is provided with an oil injection channel, the end of which is located on the right outer wall of the bearing housing, and a sealing plug is inserted at the port of the oil injection channel.

[0008] Furthermore, an adjustment shim is provided between the L-shaped mounting plate and the absolute encoder. Multiple adjustment shims are provided, and each adjustment shim has a different thickness. Adjacent adjustment shims are connected by countersunk screws.

[0009] Furthermore, a shield is detachably mounted on the right outer wall of the L-shaped mounting base, which covers the L-shaped mounting plate and the absolute encoder. A detachable back plate is also detachably mounted on the right outer wall of the shield.

[0010] Furthermore, a second shield is detachably installed on the left outer wall of the T-shaped mounting base. The second shield covers gear one and gear two, and the second shield has clearance holes for avoiding shaft one and shaft two.

[0011] Furthermore, a corrugated tube is slidably sleeved on the outer wall of the connecting cable, the bottom end of the corrugated tube is detachably mounted to the outer wall of the control box, a connecting seat is fixedly mounted on the outer wall of the L-shaped mounting base, the connecting cable passes through the connecting seat, and the top end of the corrugated tube is detachably mounted to the connecting seat.

[0012] Furthermore, the control box is equipped with a mounting bracket inside, on which a power module, an EMC filter module, an RS signal filter, and a PLC control module are fixedly mounted. An alarm assembly is fixedly mounted on the top of the control box, and a temperature sensor is fixedly mounted on the side of the absolute encoder.

[0013] Furthermore, the control box has a display panel on its front, which includes a display screen and a button group. A hidden groove is provided on the front of the display panel, and a hidden calibration button is fixedly installed in the hidden groove. The front of the hidden calibration button is covered with an anti-touch cover.

[0014] Compared with the prior art, the beneficial effects of the present invention are: A T-shaped mounting base and a bearing housing are set up for mounting the front shaft. The front shaft is set up to connect the transmission assembly and the chain length measuring assembly. The transmission assembly connects the sprocket shaft to the front shaft. The front shaft transmits the rotation of the sprocket shaft to the chain length measuring assembly. The chain length measuring assembly analyzes the rotation of the sprocket shaft to determine the rotation of the anchor sprocket and then measures the length of the anchor winch chain. The connecting shaft and the probe shaft of the absolute encoder are connected by a flexible coupling. Then the probe shaft of the absolute encoder is connected to the front shaft. The absolute encoder collects data and then transmits the collected data to the control box through the connecting cable. The electronic devices and software installed in the control box can analyze and calculate the data to determine the anchor chain length. Meanwhile, the flexible coupling can also compensate for the coaxiality deviation and angular deviation of the connecting shaft and the absolute encoder detection shaft, avoiding deformation or wear of the absolute encoder detection shaft due to insufficient installation accuracy; at the same time, it buffers the vibration transmission of the front shaft, reducing the impact of vibration on the acquisition accuracy of the absolute encoder. By adjusting the gear ratio between gear 2 and gear 1, the rotational speed of the sprocket shaft is amplified. When the sprocket shaft rotates at a small angle, the front shaft can rotate at a significantly larger angle, thus amplifying the rotational amplitude of the sprocket shaft and making the chain length measuring component more accurate. The PLC control module receives pulse signals from the absolute encoder and calculates the anchor chain length by combining preset parameters (transmission ratio, anchor chain wheel tooth tip circle diameter). It also receives temperature sensor data to achieve temperature compensation. The EMC filter module is used to suppress electromagnetic interference. There are strong interference sources such as radar, radio, and motors on the ship deck. The EMC filter module can filter out electromagnetic noise in the power supply line to avoid interfering with the absolute encoder signal acquisition and PLC control module data processing, and ensure the stable operation of the system in a strong electromagnetic environment. RS485 signal filters are used for signal transmission anti-interference, filtering out common-mode interference in connecting cables (such as electromagnetic coupling between cables), ensuring that the absolute encoder pulse signal is accurately transmitted to the PLC control module, avoiding pulse loss or misjudgment due to signal interference, and improving the reliability of data acquisition. The alarm component is used for safety warnings. When faults such as "chain length exceeding the range", "encoder disconnection", or "temperature exceeding the limit" occur, the operator is promptly alerted through a buzzer (auditory warning) and LED lights (visual warning) to avoid safety accidents during ship berthing due to measurement failure (such as anchor chain breakage due to excessive lowering). Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 For the present invention Figure 1 Structural diagram of the rear view; Figure 3 For the present invention Figure 1 A structural diagram from the top top view; Figure 4 For the present invention Figure 1 A structural schematic diagram of the front sectional view; Figure 5This is a schematic diagram of the transmission component and chain length measuring component of the present invention; Figure 6 This is a schematic diagram of the exploded view of the chain length measuring component of the present invention; Figure 7 This is a schematic diagram of the structure of the L-shaped mounting plate and the absolute encoder of the present invention; Figure 8 This is a schematic diagram of the control box of the present invention; Figure 9 This is a schematic diagram of the internal components of the control box of the present invention; Figure 10 This is a schematic diagram of the structure of the present invention when the hidden calibration button is exposed.

[0016] In the diagram: 1. T-type mounting bracket; 2. Control box; 201. Mounting frame; 202. PLC control module; 203. Power supply module; 204. EMC filter module; 205. RS485 signal filter; 206. Alarm assembly; 3. Display panel; 301. Display screen; 302. Keypad group; 4. Oil filling channel; 5. Front shaft; 6. Transmission assembly; 601. Shaft 1; 602. Gear 1; 603. Shaft 2; 604. Gear 2; 7. 701 Chain length measuring component; 702 L-shaped mounting base; 703 L-shaped mounting plate; 704 Absolute encoder; 705 Connecting cable; 706 Connecting shaft; 707 Flexible coupling; 8 Bearing housing; 9 Sprocket shaft; 10 Anchor sprocket; 11 Adjusting shim; 12 Temperature sensor; 13 Bellows; 14 Connecting base; 15 Concealed calibration button; 16 Anti-touch cover; 17 Shielding cover one; 18 Removable back plate; 19 Shielding cover two. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0018] Example 1 Please see Figures 1-7This invention provides a technical solution: a horizontal anchor winch chain length measuring device, including a T-shaped mounting base 1 and a control box 2. A bearing seat 8 is installed at the top center of the T-shaped mounting base 1. A front shaft 5 is rotatably connected to the inner wall of the bearing seat 8 via a bearing. A chain length measuring component 7 is connected to the right end of the front shaft 5, and a transmission component 6 is connected to the left end of the front shaft 5. The transmission component 6 is connected to the sprocket shaft 9 at the center of the anchor chain wheel 10. The T-shaped mounting base 1 and the bearing seat 8 are set for mounting the front shaft 5. The front shaft 5 is set for connecting the transmission component 6 and the chain length measuring component 7. The sprocket shaft 9 is connected to the front shaft 5 through the transmission component 6. The front shaft 5 transmits the rotation of the sprocket shaft 9 to the chain length measuring component 7. The chain length measuring component 7 analyzes the rotation of the sprocket shaft 9 to determine the rotation of the anchor chain wheel 10, and then measures the anchor winch chain length. The chain length measuring component 7 includes an L-shaped mounting base 701, which is fixedly mounted on the outer wall of the T-shaped mounting base 1. The front shaft 5 is rotatably connected to the L-shaped mounting base 701 via bearings. A connecting shaft 705 is threaded into the right end of the L-shaped mounting base 701. An L-shaped mounting plate 702 is installed on the outer wall of the L-shaped mounting base 701 via screws. An absolute encoder 703 is installed on the bottom of the L-shaped mounting plate 702. A flexible coupling 706 is connected to the right end of the connecting shaft 705. The detection shaft of the absolute encoder 703 is connected to the flexible coupling 706. A connecting cable 704 is connected to the bottom of the absolute encoder 703 and is connected to the signal input terminal of the control box 2. The L-shaped mounting base 701 is used to provide secondary support for the right end of the front shaft 5. The connecting shaft 705 and the detection shaft of the absolute encoder 703 are connected by a flexible coupling 706. Then, the detection shaft of the absolute encoder 703 is connected to the front shaft 5. The absolute encoder 703 collects data and transmits the collected data to the control box 2 through the connecting cable 704. The electronic components and software installed in the control box 2 can analyze and calculate the data to determine the anchor chain length. At the same time, the flexible coupling 706 can also compensate for the coaxiality deviation and angular deviation of the connecting shaft 705 and the detection shaft of the absolute encoder 703, avoiding deformation or wear of the detection shaft of the absolute encoder 703 due to insufficient installation accuracy. It also buffers the vibration transmission of the front shaft 5, reducing the impact of vibration on the acquisition accuracy of the absolute encoder 703. The transmission assembly 6 includes a rotating shaft 601, the right end of which is fixedly connected to the front shaft 5. A gear 602 is fixedly installed on the outer wall of the rotating shaft 601. The gear 602 meshes with a gear 604. A rotating shaft 603 is fixedly installed on the inner wall of the gear 604. The left end of the rotating shaft 603 is fixedly connected to the sprocket shaft 9. Through the transmission of the gear 602 and the gear 604, the front shaft 5 can be driven to rotate when the sprocket shaft 9 rotates, thereby realizing the transmission of rotation data of the sprocket shaft 9. The number of teeth of gear 2 604 is three times that of gear 1 602. Gear 2 604 is parallel to the central axis of shaft 1 601. By using the ratio of the number of teeth of gear 2 604 to gear 1 602, the rotational speed of sprocket shaft 9 is amplified. When sprocket shaft 9 rotates at a small angle, front shaft 5 can rotate at a significantly larger angle, that is, amplify the rotation amplitude of sprocket shaft 9, so that the measurement of chain length measuring component 7 can be more accurate. The bearing housing 8 is provided with an oil injection channel 4. The end of the oil injection channel 4 is located on the right outer wall of the bearing housing 8, and a sealing plug is plugged at the port of the oil injection channel 4. The oil injection channel 4 is provided to add lubricating oil into the bearing housing 8 and then lubricate the bearing inside the bearing housing 8. An adjusting shim 11 is provided between the L-shaped mounting plate 702 and the absolute encoder 703. There are multiple adjusting shims 11, and each adjusting shim 11 has a different thickness. Adjacent adjusting shims 11 are connected by countersunk screws. The adjusting shims 11 are used to adjust the position of the absolute encoder 703 so that the detection axis of the absolute encoder 703 is as aligned and parallel as possible with the front axis 5. A shield 17 is detachably installed on the right outer wall of the L-shaped mounting base 701. The shield 17 covers the L-shaped mounting plate 702 and the absolute encoder 703. A removable back plate 18 is detachably installed on the right outer wall of the shield 17. The shield 17 is used to protect the absolute encoder 703 and reduce the damage to the absolute encoder 703 caused by the harsh air environment during navigation. The removable back plate 18 is used to expose the absolute encoder 703 when it is replaced or repaired. A second shield 19 is detachably installed on the left outer wall of the T-shaped mounting base 1. The second shield 19 covers gear 1 602 and gear 2 604. The second shield 19 has clearance holes to avoid rotating shaft 1 601 and rotating shaft 2 603. The second shield 19 is installed to protect gear 1 602 and gear 2 604, reduce the probability of damage to gear 1 602 and gear 2 604, and improve the service life of gear 1 602 and gear 2 604. A corrugated tube 13 is slidably sleeved on the outer wall of the connecting cable 704. The bottom end of the corrugated tube 13 is detachably mounted to the outer wall of the control box 2. A connecting seat 14 is fixedly mounted on the outer wall of the L-shaped mounting base 701. The connecting cable 704 passes through the connecting seat 14. The top end of the corrugated tube 13 is detachably mounted to the connecting seat 14. The corrugated tube 13 is set to protect the connecting cable 704. The connecting seat 14 is set to guide the connecting cable 704 and the corrugated tube 13 to prevent the connecting cable 704 and the connecting seat 14 from getting tangled on the absolute encoder 703. On the other hand, it is used to install and fix the end of the corrugated tube 13.

[0019] Working principle: During use, the rotation of the sprocket shaft 9 drives the anchor chain wheel 10 to rotate, and when the anchor winch chain is extended or retracted, the rotation of the sprocket shaft 9 is transmitted through gear 1 602 and gear 2 604, causing the front shaft 5 to rotate. The rotation of the front shaft 5 drives the connecting shaft 705 to rotate, which in turn drives the detection shaft of the absolute encoder 703 to rotate through the flexible coupling 706. The absolute encoder 703 collects the rotation data of its own detection shaft and then transmits it to the control box 2 through the connecting cable 704. The electronic components and software installed in the control box 2 can analyze and calculate the data, and then determine the length of the extended or retracted anchor winch chain. This length is then compared with the initially saved extended or retracted anchor winch chain length to accurately calculate the anchor winch chain length.

[0020] Example 2 Please see Figures 1-3 , Figures 8-10 This invention provides a technical solution: a horizontal anchor winch chain length measuring device, including a T-shaped mounting base 1 and a control box 2. A bearing seat 8 is installed at the top center of the T-shaped mounting base 1. A front shaft 5 is rotatably connected to the inner wall of the bearing seat 8 via a bearing. A chain length measuring component 7 is connected to the right end of the front shaft 5, and a transmission component 6 is connected to the left end of the front shaft 5. The transmission component 6 is connected to the sprocket shaft 9 at the center of the anchor chain wheel 10. The T-shaped mounting base 1 and the bearing seat 8 are set for mounting the front shaft 5. The front shaft 5 is set for connecting the transmission component 6 and the chain length measuring component 7. The sprocket shaft 9 is connected to the front shaft 5 through the transmission component 6. The front shaft 5 transmits the rotation of the sprocket shaft 9 to the chain length measuring component 7. The chain length measuring component 7 analyzes the rotation of the sprocket shaft 9 to determine the rotation of the anchor chain wheel 10, and then measures the anchor winch chain length. The chain length measuring component 7 includes an L-shaped mounting base 701, which is fixedly mounted on the outer wall of the T-shaped mounting base 1. The front shaft 5 is rotatably connected to the L-shaped mounting base 701 via bearings. A connecting shaft 705 is threaded into the right end of the L-shaped mounting base 701. An L-shaped mounting plate 702 is installed on the outer wall of the L-shaped mounting base 701 via screws. An absolute encoder 703 is installed on the bottom of the L-shaped mounting plate 702. A flexible coupling 706 is connected to the right end of the connecting shaft 705. The detection shaft of the absolute encoder 703 is connected to the flexible coupling 706. A connecting cable 704 is connected to the bottom of the absolute encoder 703 and is connected to the signal input terminal of the control box 2. The L-shaped mounting base 701 is used to provide secondary support for the right end of the front shaft 5. The connecting shaft 705 and the detection shaft of the absolute encoder 703 are connected by a flexible coupling 706. Then, the detection shaft of the absolute encoder 703 is connected to the front shaft 5. The absolute encoder 703 collects data and transmits the collected data to the control box 2 through the connecting cable 704. The electronic devices and software installed in the control box 2 can analyze and calculate the data to determine the anchor chain length. At the same time, the flexible coupling 706 can also compensate for the coaxiality deviation and angular deviation of the connecting shaft 705 and the detection shaft of the absolute encoder 703, avoiding deformation or wear of the detection shaft of the absolute encoder 703 due to insufficient installation accuracy. It also buffers the vibration transmission of the front shaft 5 and reduces the impact of vibration on the acquisition accuracy of the absolute encoder 703. The control box 2 contains a mounting bracket 201, on which a power module 203, an EMC filter module 204, an RS485 signal filter 205, and a PLC control module 202 are fixedly mounted. An alarm component 206 is fixedly mounted on the top of the control box 2. A temperature sensor 12 is fixedly mounted on the side of the absolute encoder 703. The PLC control module 202 receives pulse signals from the absolute encoder 703 and calculates the anchor chain length based on preset parameters (transmission ratio, anchor chain wheel 10 tooth tip circle diameter). It also receives data from the temperature sensor 12 for temperature compensation. The power module 203 ensures system power supply, converting the AC power from the ship's deck to DC power to provide stable power to the absolute encoder 703, PLC control module 202, and alarm component 206. It features overvoltage and overcurrent protection to prevent voltage fluctuations from damaging precision modules. The EMC filter module 204 suppresses electromagnetic interference. The ship's deck is exposed to strong interference sources such as radar, radio, and motors. The EMC filter module 204 can filter out electromagnetic noise in the power supply line, avoiding interference with the signal acquisition of the absolute encoder 703 and the data processing of the PLC control module 202, ensuring the stable operation of the system in a strong electromagnetic environment. The RS485 signal filter 205 is used for signal transmission anti-interference, filtering out common-mode interference (such as electromagnetic coupling between cables) in the connecting cable 704, ensuring that the pulse signal of the absolute encoder 703 is accurately transmitted to the PLC control module 202, avoiding pulse loss or misjudgment due to signal interference, and improving the reliability of data acquisition. The alarm component 206 is used for safety warning. When faults such as "chain length over range", "encoder disconnection", and "temperature over limit" occur, the buzzer (auditory warning) and LED light (visual warning) will promptly remind the operators to avoid ship berthing safety accidents (such as anchor chain breakage due to excessive lowering) caused by measurement failure. The control box 2 has a display panel 3 on its front, which includes a display screen 301 and a button group 302. A hidden slot is provided on the front of the display panel 3, and a hidden calibration button 15 is fixedly installed within this slot. The hidden calibration button 15 is covered by an anti-touch cover 16. The display screen 301 and the button group 302 work together to provide information display and a basic operation interface. The display screen 301 visually displays the real-time anchor chain length, allowing operators to quickly obtain data (e.g., to determine if the chain length is sufficient when the ship is moored). The button group 302 enables basic operations such as "system reset" and "measurement start / stop," adapting to the immediate operational needs of ship operations. The hidden calibration button 15 is a protective component for precision calibration. The hidden design, combined with the anti-touch cover 16, prevents accidental touches during daily operation that could cause calibration parameter corruption. Calibration can be performed by simply opening the anti-touch cover 16, ensuring the safety and usability of the calibration function.

[0021] Working Principle: During operation, the transmission assembly 6 rotates the sprocket shaft 9 to the chain length measuring assembly 7. The absolute encoder 703 within the chain length measuring assembly 7 collects the rotation data, which is then transmitted to the PLC control module 202 via the connecting cable 704. The PLC control module 202 receives the pulse signal from the absolute encoder 703 and calculates the anchor chain length based on preset parameters (transmission ratio, anchor chain wheel 10 tooth tip circle diameter). Simultaneously, it receives data from the temperature sensor 12 for temperature compensation. During data transmission and reception, the EMC filtering module 204 suppresses electromagnetic interference and filters out electromagnetic noise in the power supply line to prevent interference with the signal acquisition of the absolute encoder 703 and the data processing of the PLC control module 202. To ensure stable operation of the system in a strong electromagnetic environment, the RS485 signal filter 205 performs signal transmission anti-interference, filtering out common-mode interference (such as electromagnetic coupling between cables) in the connecting cable 704, ensuring accurate transmission of the absolute encoder 703 pulse signal to the PLC control module 202, avoiding pulse loss or misjudgment due to signal interference, and improving the reliability of data acquisition. When faults such as "chain length exceeding the range", "encoder disconnection", or "temperature exceeding the limit" occur, the buzzer (auditory warning) and LED light (visual warning) promptly remind the operator to avoid ship berthing safety accidents (such as anchor chain breakage due to excessive lowering) caused by measurement failure. The anchor winch chain length calculated by the PLC control module 202 is displayed on the display screen 301.

[0022] 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.

Claims

1. A horizontal anchor winch chain length measuring device, comprising a T-shaped mounting base (1) and a control box (2), characterized in that: A bearing seat (8) is installed at the top center of the T-shaped mounting base (1). The inner wall of the bearing seat (8) is rotatably connected to a front shaft (5) through a bearing. The right end of the front shaft (5) is connected to a chain length measuring component (7), and the left end of the front shaft (5) is connected to a transmission component (6). The transmission component (6) is connected to the sprocket shaft (9) at the center of the anchor sprocket (10). The chain length measuring component (7) includes an L-shaped mounting base (701), which is fixedly mounted on the outer wall of the T-shaped mounting base (1). The front shaft (5) is rotatably connected to the L-shaped mounting base (701) through a bearing. A connecting shaft (705) is threaded into the right end of the L-shaped mounting base (701). An L-shaped mounting plate (702) is installed on the outer wall of the L-shaped mounting base (701) by screws. An absolute encoder (703) is installed on the bottom of the L-shaped mounting plate (702). A flexible coupling (706) is connected to the right end of the connecting shaft (705). The detection shaft of the absolute encoder (703) is connected to the flexible coupling (706). A connecting cable (704) is connected to the bottom of the absolute encoder (703). The connecting cable (704) is connected to the signal input end of the control box (2).

2. The horizontal anchor winch chain length measuring device according to claim 1, characterized in that: The transmission assembly (6) includes a first rotating shaft (601), the right end of which is fixedly connected to the front shaft (5), a first gear (602) is fixedly installed on the outer wall of the first rotating shaft (601), a second gear (604) meshes with the first gear (602), a second rotating shaft (603) is fixedly installed on the inner wall of the second gear (604), and the left end of the second rotating shaft (603) is fixedly connected to the sprocket shaft (9).

3. The horizontal anchor winch chain length measuring device according to claim 2, characterized in that: The number of teeth of gear two (604) is three times the number of teeth of gear one (602), and gear two (604) is parallel to the central axis of shaft one (601) vertically.

4. The horizontal anchor winch chain length measuring device according to claim 1, characterized in that: The bearing housing (8) is provided with an oil injection channel (4), the end of which is located on the right outer wall of the bearing housing (8), and a sealing plug is plugged at the port of the oil injection channel (4).

5. The horizontal anchor winch chain length measuring device according to claim 1, characterized in that: An adjusting shim (11) is provided between the L-shaped mounting plate (702) and the absolute encoder (703). There are multiple adjusting shims (11), and each adjusting shim (11) has a different thickness. Adjacent adjusting shims (11) are connected by countersunk screws.

6. The horizontal anchor winch chain length measuring device according to claim 1, characterized in that: The right outer wall of the L-shaped mounting base (701) is provided with a shield (17) which covers the L-shaped mounting plate (702) and the absolute encoder (703). The right outer wall of the shield (17) is provided with a detachable back plate (18).

7. A horizontal anchor winch chain length measuring device according to claim 2, characterized in that: The left outer wall of the T-shaped mounting base (1) is provided with a second shield (19), which covers gear one (602) and gear two (604). The second shield (19) has clearance holes for clearance between shaft one (601) and shaft two (603).

8. The horizontal anchor winch chain length measuring device according to claim 1, characterized in that: The outer wall of the connecting cable (704) is slidably fitted with a corrugated tube (13). The bottom end of the corrugated tube (13) is detachably mounted to the outer wall of the control box (2). The outer wall of the L-shaped mounting base (701) is fixedly mounted with a connecting seat (14). The connecting cable (704) passes through the connecting seat (14). The top end of the corrugated tube (13) is detachably mounted to the connecting seat (14).

9. A horizontal anchor winch chain length measuring device according to claim 1, characterized in that: The control box (2) is equipped with a mounting bracket (201), on which a power module (203), an EMC filter module (204), an RS485 signal filter (205), and a PLC control module (202) are fixedly mounted. An alarm component (206) is fixedly mounted on the top of the control box (2), and a temperature sensor (12) is fixedly mounted on the side of the absolute encoder (703).

10. A horizontal anchor winch chain length measuring device according to claim 9, characterized in that: The control box (2) has a display panel (3) on its front side. The display panel (3) has a display screen (301) and a button group (302). The display panel (3) has a hidden groove on its front side, and a hidden calibration button (15) is fixedly installed in the hidden groove. The hidden calibration button (15) is covered with an anti-touch cover (16).

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