Supporting and clamping device for multi-tooth-groove shaft

Abstract

The utility model discloses a supporting and clamping device of a multi-tooth-groove shaft, which comprises a motor support, an encoder support and a deflection indexing controller, a servo motor is arranged on the motor support and connected with a speed reducer, an output shaft of the speed reducer is connected with a pod shaft through a universal coupling, and the output shaft of the speed reducer is connected with a motor support. A first static pressure tool and a second static pressure tool are arranged on the pod shaft, an encoder is arranged on the encoder support, and the encoder is connected with the pod shaft. The supporting device is reasonable in structural design, the surface of the journal of the pod shaft and the surface of the bearing can be completely separated by lubricating oil under the conditions of frequent rotation, braking and low-speed operation, the bearing is in a full-liquid friction state, the friction resistance is small, the journal and the bearing on the supporting device are not abraded, the journal is protected, and the service life of the pod shaft is prolonged. And the service life of the bearing is prolonged, the application range is wide, the use is simple, convenient and safe, and the device is suitable for processing pod bracket tooth sockets with various specifications and diameters.

Description

TECHNICAL FIELD

[0001] The utility model relates to multi-tooth slot shaft processing technical field especially relates to a kind of multi-tooth slot shaft's support clamping device. BACKGROUND

[0002] In the ship industry, the pod shaft support is installed on the pod shaft by hot mounting, and all the tooth grooves on the pod shaft support need to be machined after hot mounting. Since the tooth grooves on the pod shaft support are relatively more, the length of the pod shaft is relatively long, the machining precision is relatively high, the diameter of the pod shaft support is relatively large, and the pod shaft is relatively heavy. During machining, the tooth grooves also have the problems of frequent rotation, low-speed operation, braking, low rotation speed, difficulty in forming oil film, easy to cause dry friction, large friction resistance, rotation difficulty, easy to cause shaft holding accident, and wear and even burn of the static pressure bearing on the shaft neck and support device of the pod shaft. Since there is a side surface condition during milling, a large axial force is generated during milling, which easily causes the pod multi-tooth slot shaft to move axially, resulting in axial displacement and seriously affecting the machining precision. Therefore, the machining of the tooth grooves on the support is a major problem. Therefore, it is necessary to solve the key problem of using a reliable, safe, and long-service-life support clamping device. SUMMARY

[0003] The utility model aims at solving the above technical problem, combining the development trend of modern ship industry, provide a kind of simple and convenient structure, safety, small frictional resistance, long service life, prevent injury, easy rotation's multi-tooth slot shaft support clamping device.

[0004] In order to achieve the above technical purpose and meet the above technical requirements, the utility model adopts the technical scheme: a kind of multi-tooth slot shaft's support clamping device, including motor support, encoder support, displacement indexing controller, servo motor is provided on the motor machine support, the servo motor is connected with speed reducer, the output shaft of speed reducer is connected with pod shaft through universal coupling, first static pressure tooling and second static pressure tooling are provided on the pod shaft, encoder is provided on the encoder support, the encoder is connected with pod shaft, the first static pressure tooling includes base, box is provided on the base, pod shaft is arranged in the box through static pressure bearing, clamping limiting device is provided on the box, the second static pressure tooling is same with the structure of the first static pressure tooling.

[0005] Preferably, the box includes a box upper cover and a box lower cover, a gap is provided between the box upper cover and the box lower cover, a groove is provided on the end face of the box upper cover, and a spring is provided in the groove.

[0006] Preferably, the clamping limiting device includes a jack and a gland, a plurality of guide rods are provided around the box, a spacer sleeve and a nut are provided on the upper end of the guide rod and pass through the gland, and the lower end passes through the box upper cover, the spring and the box lower cover.

[0007] Preferably, the hydrostatic bearing is provided with an oil supply hole connected with a hydrostatic lubricating oil station through a pipeline, and the bottom of the box body is provided with an oil collecting tank.

[0008] Compared with the traditional structure, the novel large-tonnage large-diameter multi-tooth groove shaft support clamping device has the advantages that: the shaft neck surface and the bearing surface are completely separated by lubricating oil under the conditions of frequent rotation, braking and low-speed operation, the bearing is in a full-liquid friction state, the friction resistance is small, the shaft neck and the bearing on the support device are not worn, the shaft neck is protected, the service life of the bearing is prolonged, the application range is wide, and the use is simple, convenient and safe. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is a structural schematic view of the utility model;

[0010] Figure 2 It is a structural schematic view of the utility model static pressure tooling;

[0011] Figure 3 It is Figure 2 a side view;

[0012] In the figure: 1. displacement indexing controller, 2. servo motor, 3. motor support, 4. universal coupling, 5. second static pressure tooling, 6. first static pressure tooling, 61. base, 62. box body, 621. box body upper cover, 622. box body lower cover, 63. clamping limiting device, 631. guide rod, 632. gland, 633. jack, 634. spacer sleeve, 64. hydrostatic bearing, 641. oil supply hole, 65. oil collecting tank, 66. spring, 7. static pressure lubricating oil station, 8. encoder support, 9. encoder, 10. suspension shaft, 11. fixed platform. DETAILED DESCRIPTION

[0013] The utility model will be further described below.

[0014] Refer to the Figures 1-3The utility model provides a kind of support clamping device of multi-tooth slot shaft, including motor support 3, encoder support 8, displacement indexing controller 1, servo motor 2 is provided on the motor support 3, the servo motor 2 is connected with speed reducer, speed reducer output shaft is connected with pod shaft 10 through universal coupling 4, first static pressure tooling 6, second static pressure tooling 5 are provided on the pod shaft 10, encoder 9 is provided on the encoder support 8, the encoder 9 is connected with pod shaft 10, the first static pressure tooling 6 includes pedestal 61, box 62 is provided on the pedestal 61, pod shaft 10 is arranged in box 62 by static pressure bearing 64, clamping limiting device 63 is provided on the box 62, the second static pressure tooling 5 is same with the structure of first static pressure tooling 6.

[0015] In the preferred embodiment, the box 62 includes an upper box cover 621 and a lower box cover 622, a gap is provided between the upper box cover 621 and the lower box cover 622, a groove is provided on the end face of the upper box cover 621, and a spring 66 is provided in the groove.

[0016] In the preferred embodiment, the clamping limiting device 63 includes a jack 633 and a gland 632, a plurality of guide rods 631 are provided around the box 62, a spacer sleeve 634 and a nut are provided on the upper end of the guide rod 631 and pass through the gland 632, and the lower end of the guide rod 631 is connected with the lower box cover 622 through the upper box cover 621 and the spring 66.

[0017] In the preferred embodiment, an oil supply hole 641 is provided on the static pressure bearing 64, the oil supply hole 641 is connected with a static pressure lubricating oil station 7 through a pipeline, and an oil collecting tank 65 is provided at the bottom of the box 62.

[0018] In specific implementation, the servo motor is connected with a motor base, and then connected with a speed reducer, and the universal coupling 4 is installed on the output shaft of the speed reducer. First, start the static pressure lubricating oil pump system, the static pressure lubricating oil station 7 (oil supply device) supplies lubricating oil with a certain pressure value into the static pressure oil cavity through the oil supply hole 641, so that the shaft neck of the pod shaft 10 is suspended in the bearing hole, and a lubricating oil film is formed between the bearing and the shaft neck. By utilizing the pressure difference between the static pressure oil cavities, the load bearing capacity of the static pressure bearing 64 is formed, the pod shaft 10 with the pod bracket is floated to a certain height, and the pressure is maintained for a certain time. Observe the data displayed by the transmission system state display of the Huadihai Gong variable displacement indexing controller 1, and through the cooperation of the encoder 9 and the manual pulse control offline, the variable displacement indexing control of the entire pod shaft bracket can be realized, so that the pod shaft bracket can stably operate at a certain angle according to the rotation shaft indexing parameter. The jacks 633 of the first static pressure tooling 6 and the second static pressure tooling 5 start to work, the clamping limiting indicator light display state is observed, and the left and right clamping is displayed. Only when the milling device starts to work can the purpose of machining multiple tooth grooves of the pod shaft bracket be achieved.

[0019] The device is manufactured by controlling the gap of 0.1mm between the shaft neck of the pod shaft and the bearing, the connecting sleeve between the universal coupling and the output shaft of the speed reducer is processed according to the transition fit tolerance H7 / m6, and the encoder flange and the pod shaft are processed according to the interference fit tolerance H7 / n6. During assembly and installation, the gap between the shaft neck of the pod shaft and the bearing is controlled to be equal to the design gap, and the pressures of the oil chambers are equal. The friction force generated by the jack (clamping and limiting device) pressing the shaft neck is greater than the cutting force during the cutting process of the gear slot.

[0020] The above embodiments of the utility model are only used to clearly illustrate the examples of the utility model, but not used to limit the protection scope of the utility model, and all equivalent technical solutions also belong to the scope of the utility model, and the patent protection scope of the utility model should be defined by the claims.

Claims

1. A support clamping device for a multi-groove shaft, characterized by: Including motor support (3), encoder support (8), displacement index controller (1), the motor support (3) is provided with servo motor (2), the servo motor (2) is connected with speed reducer, and the output shaft of speed reducer is connected with pod shaft (10) through universal coupling (4), the first static pressure tooling (6) is provided on the pod shaft (10), the second static pressure tooling (5), the encoder support (8) is provided with encoder (9), the encoder (9) is connected with pod shaft (10), the first static pressure tooling (6) includes base (61), the base (61) is provided with box (62), and the pod shaft (10) is arranged in the box (62) through static pressure bearing (64), the box (62) is provided with clamping limiting device (63), and the second static pressure tooling (5) is same as the structure of the first static pressure tooling (6).

2. The support clamp apparatus for a multiple toothed slot shaft as set forth in claim 1, wherein: The box (62) includes box upper cover (621), box lower cover (622), and the gap is arranged between the box upper cover (621) and the box lower cover (622), the recess is arranged on the end surface of the box upper cover (621), and the spring (66) is arranged in the recess.

3. The support clamp apparatus for a multiple toothed slot shaft as set forth in claim 1, wherein: The clamping limiting device (63) includes jack (633), gland (632), and the box (62) is provided with a plurality of guide rods (631) around, the upper end of the guide rod (631) is provided with spacer sleeve (634), nut and is connected with the box lower cover (622) through the gland (632), the box upper cover (621) and the spring (66) of the lower end.

4. The support clamp apparatus for a multiple splined shaft as set forth in claim 1, wherein: The static pressure bearing (64) is provided with oil supply hole (641), the oil supply hole (641) is connected with static pressure lubricating oil station (7) through pipeline, and the bottom of the box (62) is provided with oil collecting tank (65).

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