Steering gear structure of top flow machine

Abstract

The utility model discloses a steering gear structure of a top flow machine, which comprises a threading pipe, a first gear sleeved on the outer side of the threading pipe, a second gear meshed with the first gear, and a third gear meshed with the second gear, the reversing direct current motor is used for controlling the second gear to drive the first gear and the third gear to rotate; the number of teeth on the rim of the first gear is smaller than that of teeth on the rim of the third gear; a limiting protruding block is arranged below the third gear, a baffle corresponding to the limiting protruding block is arranged on the portion, below the third gear, of the machine shell, and the limiting protruding block and the baffle are used for limiting the third gear after the third gear rotates to the maximum angle. According to the utility model, different numbers of teeth are designed for different gears, and limiting devices are arranged at corresponding positions, so that the top flow machine can rotate by at least 360 degrees, and meanwhile, the situation that the gears are blocked due to winding of a power line caused by excessive rotation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of top flow machines, in particular to a steering gear structure of a top flow machine. Background Art

[0002] When fishing on the water, a top-current machine is often used. The top-current machine can detect schools of fish, and the reversing operation of the top-current machine can be achieved by driving the underwater motor to rotate through the steering gear.

[0003] Today's top-flow machines usually rotate continuously in one direction during rotation. This rotation method is not only difficult to control the rotation position, but it is also easy to make it difficult to distinguish the number of rotations during rotation, and the power cord may get tangled and stuck. Utility Model Content

[0004] In order to solve the problems in the prior art, the utility model provides a steering gear structure for a top-flow machine. By designing different numbers of teeth for different gears and setting limit devices at corresponding positions, not only can the top-flow machine be rotated at least 360°, but it also ensures that the gears will not rotate too much and cause the power cord to be entangled and stuck.

[0005] The embodiment of the utility model provides a steering gear structure of a top flow machine, comprising a threading tube, a first gear sleeved on the outside of the threading tube, a second gear meshing with the first gear, and a third gear meshing with the second gear;

[0006] A commutation DC motor is arranged below the second gear, and the commutation DC motor is used to control the second gear to drive the first gear and the third gear to rotate;

[0007] The number of teeth on the first gear rim is less than the number of teeth on the third gear rim;

[0008] A limiting protrusion is arranged below the third gear, and a baffle corresponding to the limiting protrusion is arranged on the housing below the third gear. The limiting protrusion and the baffle are used to limit the third gear after it rotates to a maximum angle.

[0009] Optionally, the first gear is sleeved on the threading tube via a shaft sleeve, and a retaining spring is sleeved on the outer side of the shaft sleeve, and the retaining spring is used to axially limit the first gear.

[0010] Optionally, ribs are further provided in the longitudinal direction of the first gear sleeve, and the ribs are used to radially limit the first gear.

[0011] Optionally, a soft pad is provided on the mounting screw of the commutation DC motor.

[0012] Optionally, a protective sheath is provided on the rotating shaft of the third gear.

[0013] Optionally, the protective sheath is a plastic sheath.

[0014] The utility model is designed so that the number of teeth on the rim of the first gear is smaller than the number of teeth on the rim of the third gear, and limit settings are made on the casing and in terms of size, thereby ensuring that the first gear will not be stuck due to being entangled in the power cord due to excessive rotation; the structural design can also ensure that the top flow machine can rotate at least 360° without any dead angle.

[0015] In addition, by arranging a soft pad on the mounting screw of the commutation DC motor, the vibration and noise during the movement are reduced; by arranging a protective sleeve on the third gear shaft, the generation of hard friction is prevented. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0017] Figure 1 A cross-sectional view of a steering gear structure of a top flow machine provided in an embodiment of the utility model;

[0018] Figure 2 A structural diagram of a limit setting provided in an embodiment of the utility model;

[0019] Figure 3 A structural diagram of a steering gear structure of a top flow machine provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0020] In order to make the technical problems solved by the utility model, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the utility model will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3An embodiment of the utility model provides a steering gear structure of a top flow machine, including a main controller 1, a threading tube 2, a first gear 3 sleeved on the outside of the threading tube 2, a second gear 4 meshing with the first gear, and a third gear 5 meshing with the second gear 4.

[0022] The second gear 4 is responsible for outputting torque, and a commutation DC motor 6 is arranged below, and the commutation DC motor 6 is used to control the second gear 4 to drive the first gear 3 and the third gear 5 to rotate. Since the commutation DC motor 6 generates vibration when working, a soft pad 7 is sleeved on the mounting screw of the commutation DC motor 6 to reduce the vibration of the motor.

[0023] Furthermore, the power cord is connected to the underwater motor through the threading tube 2, and the first gear 3 is responsible for transmission, and is used to drive the underwater motor to rotate by rotating to achieve reversal of the top flow machine.

[0024] In this embodiment, the number of teeth on the rim of the first gear 3 is less than the number of teeth on the rim of the third gear 5. For example, the first gear 3 has 58 teeth on the rim, and the third gear 5 has 53 teeth on the rim. With this arrangement, the first gear 3 can rotate 360°, while the rotation angle of the third gear 5 is less than 360°, such as about 329°. At the angle that the third gear 5 cannot rotate, a limit setting is made on the housing and the size, so that the gears will not rotate too far and get entangled with the power cord and get stuck.

[0025] The limiting setting of this embodiment is specifically as follows: a limiting protrusion 8 is provided under the third gear 5, and a baffle 9 corresponding to the limiting protrusion 8 is provided on the casing under the third gear 5, and the limiting protrusion 8 and the baffle 9 are used to limit the third gear 5 after it rotates to the maximum angle.

[0026] Furthermore, the first gear 3 is sleeved on the threading tube 2 via a shaft sleeve, and a retaining spring 10 is sleeved on the outer side of the shaft sleeve. The retaining spring 10 is used to axially limit the first gear 3 .

[0027] A rib 11 is also provided in the longitudinal direction of the sleeve of the first gear 3 , and the rib 11 is used to limit the first gear 3 in radial direction.

[0028] The third gear 5 in this embodiment is used to transmit position information, a magnetic steel 12 is pressed on the shaft head, and the position of the magnetic steel is detected by the Hall inspection plate 13 to determine the rotation angle of the whole machine. During installation, a protective sheath 14 is sleeved on the shaft of the third gear 5 to prevent hard friction. The protective sheath 14 can be a plastic sheath.

[0029] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A steering gear structure of a top flow machine, comprising a threading tube, a first gear sleeved on the outside of the threading tube, a second gear meshing with the first gear, and a third gear meshing with the second gear, characterized in that: A commutation DC motor is arranged below the second gear, and the commutation DC motor is used to control the second gear to drive the first gear and the third gear to rotate; The number of teeth on the first gear rim is less than the number of teeth on the third gear rim; A limiting protrusion is arranged below the third gear, and a baffle corresponding to the limiting protrusion is arranged on the housing below the third gear. The limiting protrusion and the baffle are used to limit the third gear after it rotates to a maximum angle.

2. The steering gear structure of a top flow machine according to claim 1, characterized in that: The first gear is sleeved on the threading tube through a shaft sleeve, and a retaining spring is sleeved on the outer side of the shaft sleeve, and the retaining spring is used to axially limit the first gear.

3. A steering gear structure for a top flow machine according to claim 2, characterized in that: Ribs are also provided in the longitudinal direction of the first gear sleeve, and the ribs are used to limit the first gear in radial direction.

4. The steering gear structure of a top flow machine according to claim 1, characterized in that: A soft pad is sleeved on the mounting screw of the commutation DC motor.

5. The steering gear structure of a top flow machine according to claim 1, characterized in that: The third gear shaft is sleeved with a protective sheath.

6. The steering gear structure of a top flow machine according to claim 5, characterized in that: The protective sheath is a plastic sheath.

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