Sensor connecting structure of planetary reducer of bridge type grab ship unloader

Abstract

The utility model provides a sensor connecting structure of a planetary reducer of a bridge type grab ship unloader, and belongs to the technical field of ship unloaders. The speed reducer structure comprises a box body, an input shaft, an output shaft, a manual clutch, a corrugated pipe coupling, an encoder sensor and a cam sensor, wherein the box body is arranged on an end cover of a planetary speed reducer of the bridge type grab ship unloader. The input shaft and the output shaft are installed in the box body in parallel and are in meshing transmission through gears. One end of the input shaft is connected with the manual clutch, the manual clutch is connected between the input shaft and the speed reducer in series, on-off of power transmission between the sensor and the speed reducer can be achieved, the manual clutch is disconnected during maintenance, and the situation that the sensor records wrong data due to non-working rotation of the winding drum can be avoided. The end part of the output shaft is connected with a corresponding sensor through a corrugated pipe coupling, thereby realizing flexible connection, buffering vibration, compensating installation deviation, reducing the rotating speed of the sensor in cooperation with gear engagement, and preventing frequent shaft breakage of the sensor due to overhigh rotating speed.

Description

Technical Field

[0001] This utility model relates to the field of ship unloading machine technology, and in particular to a sensor connection structure for a planetary reducer of a bridge grab ship unloader. Background Technology

[0002] The bridge-type grab unloader uses four output shafts from two planetary reducers to drive four drums, enabling the lifting, opening, and closing of the grab bucket and the movement of the trolley. During operation, the planetary reducers require limit sensors to detect the positions of the grab bucket and trolley, determining whether they have reached the predetermined positions. Directly mounting the limit sensors on the reducers has the following disadvantages:

[0003] 1. The limit sensor cannot switch on and off with the reducer. During reducer maintenance, the limit sensor may record incorrect data due to the rotation of the drum during maintenance.

[0004] 2. The limit sensor is rigidly connected to the reducer, and if the limit sensor rotates too fast, it can easily cause the limit sensor shaft to break.

[0005] 3. The coaxiality between the limit sensor mounting bracket and the reducer mounting interface is not high, resulting in off-center loading. Utility Model Content

[0006] In view of this, the present invention provides a sensor connection structure for the planetary reducer of a bridge grab unloader.

[0007] Therefore, the present invention provides the following technical solution:

[0008] A sensor connection structure for a planetary reducer of a bridge grab unloader includes a housing, an input shaft, an output shaft, a manual clutch, a bellows coupling, an encoder sensor, and a cam sensor. The housing is mounted on the end cover of the planetary reducer. The input shaft and output shaft are rotatably mounted in parallel within the housing. Gears are mounted on both the input and output shafts, and these gears mesh with each other. The input shaft passes through the housing, and one end is connected to the manual clutch, which is connected in series between the input shaft and the planetary reducer. The end of the output shaft furthest from the planetary reducer extends out of the housing and is connected to the corresponding encoder sensor or cam sensor via the bellows coupling.

[0009] Furthermore, the number of output shafts is one or two. When there is one output shaft, the end of the output shaft is connected to the encoder sensor through a bellows coupling. When there are two output shafts, the end of one output shaft is connected to the encoder sensor through a bellows coupling, and the end of the other output shaft is connected to the cam sensor through a bellows coupling.

[0010] Furthermore, both the input shaft and the output shaft are rotatably mounted in the housing via single-row tapered roller bearings.

[0011] Furthermore, the housing includes a housing base and a housing cover, and the housing base and housing cover are assembled together by positioning pins; the housing base is installed on the end cover of the planetary reducer of the bridge grab unloader by means of positioning with a stop and flange connection.

[0012] Furthermore, a level gauge is installed on the housing base via a sealing gasket.

[0013] Furthermore, the housing base is provided with an oil drain port and an oil filling port, and washers and screw plugs are installed in sequence at the corresponding oil drain port and oil filling port on the housing base.

[0014] Furthermore, a housing end cover is installed at the passage between the housing and the input shaft and the output shaft, and a skeleton oil seal is installed in the gap between the housing end cover and the corresponding input shaft and output shaft; an end cover flange is installed on the housing end cover, a bellows coupling is located inside the end cover flange, and an encoder sensor and a cam sensor are installed at the end of the corresponding end cover flange.

[0015] Furthermore, a gasket and a viewing cover are sequentially installed on the housing along the direction away from the housing. The viewing cover includes a viewing cover body and a vent cap installed on the viewing cover body.

[0016] Furthermore, the input shaft is connected to the gear, the output shaft to the gear, and the output shaft to the bellows coupling, all by key.

[0017] Advantages and positive effects of this utility model:

[0018] By connecting a manual clutch in series between the input shaft and the reducer, the power transmission between the sensors and the planetary reducer of the bridge grab unloader can be switched on and off. When maintaining the planetary reducer of the bridge grab unloader, disengage the manual clutch to prevent the limit sensors from recording incorrect data due to the drum's non-operating rotation.

[0019] The use of bellows couplings enables flexible connections between each output shaft and its corresponding limit sensor, which can buffer transmission vibration and compensate for installation deviations. At the same time, the meshing transmission of gears on the input and output shafts reduces the speed of the sensor and prevents the limit sensor from frequently breaking its shaft due to excessive speed. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This utility model provides a cross-sectional view of the sensor connection structure of a planetary reducer for a bridge grab unloader with dual output.

[0022] Figure 2 This utility model provides a dual-output main view of the sensor connection structure of a planetary reducer for a bridge-type grab unloader.

[0023] Figure 3 This utility model provides a sensor connection structure for a planetary reducer of a bridge grab unloader, with dual output side view.

[0024] Figure 4 A single-output sectional view of the sensor connection structure of the planetary reducer of a bridge grab unloader provided by this utility model.

[0025] Figure 5 This utility model provides a single-output main view of the sensor connection structure of a planetary reducer for a bridge-type grab unloader.

[0026] Figure 6 This utility model provides a single-output side view of the sensor connection structure of a planetary reducer for a bridge-type grab unloader.

[0027] In the diagram: 1. Housing; 2. Input shaft; 3. Output shaft; 4. Manual clutch; 5. Bellows coupling; 6. Encoder sensor; 7. Cam sensor; 8. Single-row tapered roller bearing; 9. Housing base; 10. Housing cover; 11. Locating pin; 12. Level gauge; 13. Plug; 14. Skeleton oil seal; 15. Sight hole cover; 16. Vent cap; 17. Gasket; 18. Gear; 19. Key; 20. End cover flange; 21. Housing end cover. Detailed Implementation

[0028] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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 should fall within the protection scope of the present invention.

[0029] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0030] This utility model provides a sensor connection structure for the planetary reducer of a bridge-type grab unloader, such as... Figure 1-3 As shown, it includes a housing 1, an input shaft 2, an output shaft 3, a manual clutch 4, a bellows coupling 5, an encoder sensor 6, and a cam sensor 7; wherein, gears 18 are installed on both the input shaft 2 and the output shaft 3, and the gears 18 mesh with each other, and the meshing speed ratio between the input shaft and the output shaft gears is 5.41; the input shaft 2 and the output shaft 3 are rotatably mounted in the housing 1 through single-row tapered roller bearings 8.

[0031] The housing 1 includes a housing base 9 and a housing cover 10. The housing base 9 and housing cover 10 are assembled together by positioning pins 11. The housing base 9 is installed on the end cover of the planetary reducer of the bridge grab unloader by means of locating with a stop and connecting with a flange. The locating with a stop installation can effectively ensure the coaxiality with the reducer, avoid the phenomenon of uneven load, ensure the smooth and reliable transmission process, and improve the service life of the overall structure.

[0032] A level gauge 12 is installed on the housing base 9 by a sealing gasket; the housing base 9 is provided with an oil drain port and an oil filling port, and gaskets and screw plugs 13 are installed on the housing base 9 in sequence at the corresponding oil drain port and oil filling port.

[0033] A housing end cover 21 is installed at the passage between the housing 1 and the input shaft 2 and the output shaft 3. A skeleton oil seal 14 is installed in the gap between the housing end cover 21 and the corresponding input shaft 2 and output shaft 3. An end cover flange 20 is installed on the housing end cover 21. A bellows coupling 5 is located inside the end cover flange 20. An encoder sensor 6 and a cam sensor 7 are installed at the ends of the corresponding end cover flanges 20.

[0034] like Figure 2 As shown, a gasket 17 and a viewing cover 15 are sequentially installed on the housing 1 along the direction away from the housing 1. The viewing cover 15 includes a viewing cover body and a vent cap 16 installed on the viewing cover body.

[0035] like Figure 1 As shown, the input shaft 2 passes through the housing 1, and one end of it is connected to the manual clutch 4. The manual clutch 4 is connected in series between the input shaft 2 and the planetary reducer of the bridge grab unloader. The manual clutch 4 can realize the switching between the limit sensor and the reducer, avoiding the limit sensor recording incorrect data due to the rotation of the drum during reducer maintenance, ensuring the accuracy of the sensor data, and facilitating maintenance work.

[0036] The end of the output shaft 3, furthest from the planetary reducer of the bridge grab unloader, extends out of the housing 1 and connects to the corresponding encoder sensor 6 or cam sensor 7 via a bellows coupling 5. The bellows coupling 5 provides a flexible connection, effectively buffering vibrations and impacts during transmission. Furthermore, in conjunction with the gear 18 meshing on the input shaft 2 and output shaft 3, it reduces the speed of the limit sensor, preventing shaft breakage and improving the stability and safety of sensor operation.

[0037] The number of output shafts 3 can be one or two. When the number of output shafts 3 is one, such as... Figure 4-6 As shown, the end of the output shaft 3 is connected to the encoder sensor 6 via a bellows coupling 5. When there are two output shafts 3, as shown... Figure 1-3 As shown, one end of the output shaft 3 is connected to the encoder sensor 6 via a bellows coupling 5, and the other end of the output shaft 3 is connected to the cam sensor 7 via a bellows coupling 5.

[0038] The input shaft 2 is connected to the gear 18, the output shaft 3 is connected to the gear 18, and the output shaft 3 is connected to the bellows coupling 5 via key 19.

[0039] Working principle:

[0040] When the planetary reducer of the bridge grab unloader is in normal working condition, the manual clutch 4 is engaged, and the power output by the planetary reducer is transmitted to the input shaft 2 through the manual clutch 4. The input shaft 2 transmits power to the output shaft 3 through the meshing of the gear 18 on it and the gear 18 on the output shaft 3. At the same time, the speed is reduced through the gear ratio of the gear 18. The output shaft 3 transmits the reduced and buffered power to the encoder sensor 6 or cam sensor 7 through the bellows coupling 5. The encoder sensor 6 or cam sensor 7 normally collects the equipment operating parameters. During this process, the housing seat 9 ensures the coaxiality of the input shaft 2 and the output shaft 3 of the bridge grab unloader planetary reducer through the stop positioning, ensuring smooth meshing of the gear 18 and transmission without off-center load. The skeleton oil seal 14, sealing gasket and other sealing components ensure that the lubricating oil in the housing 1 does not leak. The level gauge 12 facilitates the observation of the oil level in the housing 1, and the vent cap 16 achieves the balance of air pressure inside and outside the housing 1.

[0041] When maintenance is required on the planetary reducer of the bridge grab unloader, operate the manual clutch 4 to disengage it. At this time, the power transmission between the input shaft 2 and the planetary reducer of the bridge grab unloader is cut off. This prevents the encoder sensor 6 and cam sensor 7 from recording incorrect operating data due to the rotation of the drum during maintenance. After maintenance is completed, engage the manual clutch 4.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A sensor connection structure of a planetary reducer of a bridge-type grab ship unloader, characterized by, The utility model relates to a kind of planetary reducer, including box (1), input shaft (2), output shaft (3), manual clutch (4), bellows coupling (5), encoder sensor (6) and cam sensor (7);The box (1) is installed on the end cover of bridge type grab ship unloader planetary reducer, input shaft (2) and output shaft (3) are parallelly rotatably installed in box (1), input shaft (2) and output shaft (3) are all installed with gear (18), and each gear (18) is engaged with each other;Input shaft (2) penetrates box (1), and its one end is connected with manual clutch (4), and manual clutch (4) is connected in series between input shaft (2) and bridge type grab ship unloader planetary reducer;The end of output shaft (3) away from bridge type grab ship unloader planetary reducer penetrates box (1) and is connected with corresponding encoder sensor (6) or cam sensor (7) by bellows coupling (5).

2. The sensor connection structure of a planetary reducer of a bridge-type grab ship unloader according to claim 1, characterized by, The number of the output shaft (3) is one or two, when the number of the output shaft (3) is one, the end of the output shaft (3) is connected with the encoder sensor (6) by the bellows coupling (5); when the number of the output shaft (3) is two, the end of one of the output shaft (3) is connected with the encoder sensor (6) by the bellows coupling (5), and the end of the other output shaft (3) is connected with the cam sensor (7) by the bellows coupling (5).

3. The sensor connection structure of a planetary reducer of a bridge-type grab ship unloader according to claim 1, characterized by, The input shaft (2) and the output shaft (3) are rotatably installed in the box (1) by the single-row tapered roller bearing (8).

4. The sensor connection structure of a planetary reducer of a bridge-type grab ship unloader according to claim 1, characterized by The box (1) includes a box seat (9) and a box cover (10), the box seat (9) and the box cover (10) are positioned and assembled by positioning pins (11); the box seat (9) is installed on the end cover of the bridge type grab ship unloader planetary reducer by the way of stopper positioning and flange connection.

5. The sensor connection structure of a planetary reducer of a bridge-type grab ship unloader according to claim 4, characterized by The liquid level meter (12) is sealedly installed on the box seat (9) by a sealing gasket.

6. The sensor connection structure of a planetary reducer of a bridge-type grab ship unloader according to claim 4, characterized by The box seat (9) is provided with a drain port and an oil filling port, and a gasket and a screw plug (13) are sequentially installed on the box seat (9) corresponding to the drain port and the oil filling port.

7. The sensor connection structure of a planetary reducer of a bridge-type grab ship unloader according to claim 2, characterized by The box end cover (21) is installed at the penetration of the box (1), the input shaft (2) and the output shaft (3), the skeleton oil seal (14) is installed in the gap between the box end cover (21) and the corresponding input shaft (2) and output shaft (3); the end cover flange (20) is installed on the box end cover (21), the bellows coupling (5) is located in the end cover flange (20), and the encoder sensor (6) and the cam sensor (7) are installed on the end of the corresponding end cover flange (20).

8. The sensor connection structure of a planetary reducer of a bridge-type grab ship unloader according to claim 1, characterized by, The gasket (17) and the sight glass cover (15) are sequentially installed on the box (1) in the direction away from the box (1), and the sight glass cover (15) includes a sight glass cover body and an air vent cap (16) installed on the sight glass cover body.

9. The sensor connection structure of a planetary reducer of a bridge type grab ship unloader according to claim 1, characterized by, The input shaft (2), the gear (18), the output shaft (3), the gear (18) and the bellows coupling (5) are connected by the key (19).

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