CN109630637B - High-low speed input dual-mode transmission device - Google Patents

Abstract

The high-low speed input double-mode transmission device comprises a support body, wherein an output shaft and an input shaft are respectively arranged at two ends of the support body, an input pinion is arranged on the input shaft, an output large gear is arranged on the output shaft, an intermediate shaft is also arranged on the top surface of the support body, an intermediate pinion and an intermediate large gear are respectively arranged at two ends of the intermediate shaft, the intermediate pinion is meshed with the output large gear, and the intermediate large gear is meshed with the input small gear; the output shaft and the input shaft are coaxially arranged, an output shaft clutch wheel is connected with an upper key at one end of the output shaft, which is close to the input shaft, and a sliding sleeve is connected with an upper key of the input shaft; the output shaft is provided with an overrunning clutch which is provided with a ratchet wheel; the output shaft is provided with an energy storage torsion spring; the support body is provided with a support frame, and the support frame is provided with a pawl; the output big gear is provided with a deflector rod. By adopting the structure, the direct drive transmission is realized during high-speed input, and the output is concentrated through speed reduction, torque increase and energy storage during low-speed input, so that the output rotating speed, torque and efficiency requirements are ensured.

Description

A high and low speed input dual-mode transmission device

Technical field

The invention relates to the field of transmission devices, in particular to a high- and low-speed input dual-mode transmission device.

Background technique

In mechanical work, non-machines are often used as inputs such as constant speed, constant torque and constant power input. The output has certain requirements for speed and torque. For example, in wind power generation and ocean current power generation, the flow rate of the fluid is uncontrollable. , and in ocean current power generation, as the water depth increases, the velocity of the ocean current profile decreases rapidly. The input speed and torque of self-generated power generation devices that supply energy at deeper sea depths are often very small. At low speeds, due to output requirements, That is, the generator parameter requirements. At the same time, the lower the speed, the lower the power generation efficiency, so direct drive cannot be used. At high speed, there will be mechanical losses through the transmission device to reduce efficiency, so indirect drive is not suitable. Therefore, the same transmission mode cannot be selected for the transmission device under both high and low speed working conditions.

Contents of the invention

The technical problem to be solved by the present invention is to provide a high-low speed input dual-mode transmission device. The device can realize direct drive transmission during high-speed input to ensure transmission efficiency. During low-speed input, it can concentrate output by decelerating to increase torque and accumulating energy to ensure the output speed. and torque and efficiency requirements.

In order to solve the above technical problems, the technical solution adopted by the present invention is: a high and low speed input dual-mode transmission device, including a support body. The two ends of the top surface of the support body are respectively provided with an output shaft and an input shaft. On the input shaft An input pinion is provided, an output gear is provided on the output shaft, and an intermediate shaft is provided on the top surface of the support body. An intermediate pinion and an intermediate large gear are respectively provided at both ends of the intermediate shaft, and the intermediate pinion meshes with the output large gear. , the intermediate large gear meshes with the input pinion;

The output shaft and the input shaft are coaxially arranged. The input pinion gear is provided with a first end tooth on the side facing the output shaft. The output shaft is keyed to an output shaft clutch wheel on the end close to the input shaft. The output shaft clutch wheel A second end tooth is provided on one side facing the input shaft. A sliding sleeve is keyed to the input shaft between the output shaft clutch wheel and the input pinion. The first sliding sleeve end teeth and a second sliding sleeve end tooth are respectively provided at both ends of the sliding sleeve. Sleeve end teeth;

The output shaft is provided with an overrunning clutch on the side away from the output shaft, and the overrunning clutch is provided with a ratchet;

An energy storage torsion spring is provided on the output shaft between the output gear and the ratchet wheel;

A support frame is provided on the support body, and a pawl is provided on the support frame. The pawl is set on the support frame. A compression torsion spring is also set on the support frame, and a torsion arm at one end of the compression torsion spring is set on the support frame. Connected to the pawl, the pawl arm of the pawl is inserted into the tooth groove of the ratchet wheel;

A lever is also provided on the side of the output gear facing the overrunning clutch, and the pawl arm of the pawl is arranged on the movement track of the lever.

In the preferred solution, the output gear and the ratchet are both provided with torsion spring hanging plates on opposite sides, the torsion spring spring body of the energy storage torsion spring is coaxially arranged with the output shaft, and the hooks at both ends of the energy storage torsion spring The torsion arms are respectively arranged through the holes on the two torsion spring hanging plates.

In a preferred solution, the inner ring of the overrunning clutch is keyed to the output shaft, and the outer ring of the overrunning clutch is keyed to the ratchet.

In a preferred solution, the input pinion idler sleeve is provided on the input shaft, the output large gear idler sleeve is provided on the output shaft, and the intermediate pinion gear and the intermediate large gear are both keyed to the intermediate shaft.

In a preferred solution, the output shaft is provided with a cylindrical boss on one end close to the input shaft, and the input shaft is provided with an input shaft end counterbore matching the cylindrical boss on one end close to the output shaft.

In the preferred solution, the support body is also provided with a mode switching mechanism. The mode switching mechanism includes an electric push rod. The electric push rod is fixedly arranged on the support body. The push rod of the electric push rod is set horizontally, and the end of the push rod There is a shift fork perpendicular to the push rod. Both the push rod and the shift fork are arranged on the same vertical plane as the input shaft. The "U"-shaped opening on the upper end of the shift fork is connected to the circumferential groove provided in the middle of the sliding sleeve.

In a preferred solution, a limit plate is provided at the bottom of the shift fork. The end direction of the limit plate is parallel to the axial direction of the input shaft. A distance sensor is fixed on the supports at both ends of the limit plate. The distance sensor is connected to the limit plate. The boards are set at the same level.

In a preferred solution, the input shaft is also provided with a speed measuring wheel, a photoelectric sensor is provided on one side of the speed measuring wheel, and a reflective column corresponding to the photoelectric sensor is provided on the side of the speed measuring wheel facing the photoelectric sensor.

In a preferred solution, the distance between the photoelectric sensor and the input shaft is equal to the distance between the reflective column and the input shaft.

In a preferred solution, the photoelectric sensor and distance sensor are connected to a single-chip microcomputer, and the single-chip microcomputer is also connected to an electric push rod.

The high and low speed input dual-mode transmission device provided by the present invention has the following beneficial effects by adopting the above structure:

(1) When the input speed of the driving force of wind or sea current is high, the transmission connection between the output shaft and the input shaft is realized through the sliding sleeve, thereby achieving the effect of direct drive transmission and effectively ensuring the transmission efficiency;

(2) When the input speed is low, the driving force of wind or sea current is concentrated and output through torsion spring energy storage, thereby ensuring the output speed, torque and efficiency requirements;

(3) The driving force of the wind or sea current can automatically adjust the transmission mode of the transmission device under different conditions of high and low speeds. It is especially suitable for equipment where the transmission device should not use the same transmission mode under both high and low speed conditions.

Description of the drawings

The present invention will be further described below in conjunction with the accompanying drawings and examples:

Figure 1 is a schematic top view of the structure of the present invention.

Figure 2 is a schematic diagram of the three-dimensional structure of the present invention.

Figure 3 is a left structural schematic diagram of the present invention.

Figure 4 is a schematic three-dimensional structural diagram of the present invention in the low-speed energy storage concentrated output mode.

Figure 5 is a schematic structural diagram of the energy storage centralized output part of the present invention.

Figure 6 is a schematic structural diagram of the energy storage spring in the elastic force releasing process of the present invention.

Figure 7 is a schematic top view of the sensing system of the present invention.

Figure 8 is a schematic side structural view of the shift fork part of the present invention.

Figure 9 is a schematic structural diagram of the sliding sleeve of the present invention.

In the figure: output shaft 1, cylindrical boss 101, support body 2, overrunning clutch 3, outer ring 301, inner ring 302 compression torsion spring 4, pawl 5, pawl arm 501, support frame 6, lever 7, Intermediate pinion 8, intermediate shaft 9, intermediate large gear 10, ratchet 11, energy storage torsion spring 12, torsion spring body 1201, hook torsion arm 1202, output large gear 13, second end tooth 1301, output shaft clutch wheel 14. Second end tooth 1401, sliding sleeve 15, first sliding sleeve end tooth 1501, second sliding sleeve end tooth 1502, circumferential groove 1503, input pinion 16, first end tooth 1601, input shaft 17, input shaft End counterbore 1701, torsion spring hanging plate 18, electric push rod 19, push rod 1901, shift fork 20, "U" shaped mouth 2001, limit plate 21, distance sensor 22, photoelectric sensor 23, reflective column 24, speed measurement Round 25.

Detailed ways

Example 1:

As shown in Figure 1-5, a high-low speed input dual-mode transmission device includes a support body 2. The top surface of the support body 2 is provided with an output shaft 1 and an input shaft 17 at both ends. The input shaft 17 is provided with an input shaft. The small gear 16, the output shaft 1 is provided with an output large gear 13, and an intermediate shaft 9 is also provided on the top surface of the support body 2. The intermediate shaft 9 is provided with an intermediate small gear 8 and an intermediate large gear 10 respectively. 8 meshes with the output large gear 13, and the intermediate large gear 10 meshes with the input pinion gear 16;

The output shaft 1 and the input shaft 17 are coaxially arranged. The input pinion 16 is provided with a first end tooth 1601 on the side facing the output shaft 1. The output shaft 1 is keyed to the output shaft on the end close to the input shaft 17. The clutch wheel 14 is provided with a second end tooth 1401 on one side of the output shaft clutch wheel 14 facing the input shaft 17. A sliding sleeve 15 is keyed on the input shaft 17 between the output shaft clutch wheel 14 and the input pinion 16. The two ends of the sleeve 15 are respectively provided with first sliding sleeve end teeth 1501 and second sliding sleeve end teeth 1502;

The output shaft 1 is provided with an overrunning clutch 3 on the side away from the output shaft 1, and the overrunning clutch 3 is provided with a ratchet 11;

The output shaft 1 between the output gear 13 and the ratchet 11 is provided with an energy storage torsion spring 12;

A support frame 6 is provided on the support body 2, and a pawl 5 is provided on the support frame 6. The pawl 5 is set on the support frame 6, and a compression torsion spring 4 is also set on the support frame 6. The torsion arm at one end of the tight torsion spring 4 is connected to the pawl 5, and the pawl arm 501 of the pawl 5 is inserted into the tooth groove of the ratchet wheel 11;

A lever 7 is also provided on the side of the output gear 13 facing the overrunning clutch 3, and the pawl arm 501 of the pawl 5 is arranged on the movement track of the lever 7.

In the preferred solution, the output gear 13 and the ratchet 11 are both provided with torsion spring hanging plates 18 on opposite sides, and the torsion spring body 1201 of the energy storage torsion spring 12 is coaxially arranged with the output shaft 1. The hook-shaped torsion arms 1202 at both ends of the torsion spring 12 are respectively arranged through the holes on the two torsion spring hanging plates 18 .

In a preferred solution, the inner ring 302 of the overrunning clutch 3 is keyed to the output shaft 1 , and the outer ring 301 of the overrunning clutch 3 is keyed to the ratchet 11 .

In the preferred solution, the input pinion gear 16 is provided as an empty sleeve on the input shaft 17, the output large gear 13 is provided as an empty sleeve on the output shaft 1, and the intermediate pinion gear 8 and the intermediate large gear 10 are both keyed to the intermediate shaft 9. .

In a preferred solution, the output shaft 1 is provided with a cylindrical boss 101 on one end close to the input shaft 17, and the input shaft 17 is provided with an input matching cylindrical boss 101 on one end close to the output shaft 1. Counterbore 1701 at the end of the shaft.

Example 2:

On the basis of Embodiment 1, as shown in Figures 6-8, the support body 2 is also provided with a mode switching mechanism. The mode switching mechanism includes an electric push rod 19, and the electric push rod 19 is fixedly provided on the support body 2. The push rod 1901 of the electric push rod 19 is set horizontally. The end of the push rod 1901 is provided with a shift fork 20 that is set perpendicularly to the push rod 1901. The push rod 1901 and the shift fork 20 are both arranged on the same vertical plane as the input shaft 17. The “U” shaped opening 2001 at the upper end of the fork 20 is connected to the circumferential groove 1503 provided in the middle of the sliding sleeve 15 .

In the preferred solution, the bottom of the shift fork 20 is provided with a limit plate 21, the end direction of the limit plate 21 is parallel to the axial direction of the input shaft 17, and distance sensors are fixed on the supports 2 at both ends of the limit plate 21. 22. The distance sensor 22 and the limiting plate 21 are arranged at the same level.

In the preferred solution, the input shaft 17 is also provided with a speed measuring wheel 25, a photoelectric sensor 23 is provided on one side of the speed measuring wheel 25, and a speed measuring wheel 25 corresponding to the photoelectric sensor 23 is provided on a side facing the photoelectric sensor 23. Reflective pillars 24.

In a preferred solution, the distance between the photoelectric sensor 23 and the input shaft 17 is equal to the distance between the reflective column 24 and the input shaft 17 .

In a preferred solution, the photoelectric sensor 23 and the distance sensor 22 are both connected to a single-chip microcomputer, and the single-chip microcomputer is also connected to the electric push rod 19 .

In this example, the release angle of the energy-storage torsion spring 12 is 43°, and the release time is about 2 seconds.

The invention is divided into two working modes: high-speed direct drive and low-speed energy storage centralized output.

The principle of high-speed direct drive is as follows:

The input shaft 17 rotates with the driving force of wind or sea current. When the rotation speed of the input shaft 17 is high, the sliding sleeve 15 is moved toward the output shaft clutch wheel 14 through the mode switching mechanism, so that the second end tooth 1401 and the first end tooth 1401 are connected to each other. The sliding sleeve end teeth 1501 are meshed. At this time, the output shaft 1 and the input shaft 17 rotate together to achieve the purpose of direct drive. Since the output large gear 13 is empty on the output shaft 1, the input pinion 16 is empty on the input shaft 17. on, therefore no rotation occurs, and the intermediate shaft 9 remains stationary; in addition, when the output shaft 1 drives the inner ring 302 of the overrunning clutch 3 to rotate forward, due to the characteristics of the overrunning clutch 3, when the inner ring 302 rotates faster than the outer ring 301 When , the outer ring will not rotate, so the ratchet 11 will not start to rotate.

The principle of low-speed energy storage centralized output is as follows: the input shaft 17 rotates with the driving force of wind or ocean current. When the rotation speed of the input shaft 17 is low, the sliding sleeve 15 is moved toward the input pinion 16 through the mode switching mechanism, so that The first end tooth 1601 meshes with the second sliding sleeve end tooth 1502. At this time, the input shaft 17 drives the input pinion gear 16 to rotate, and drives the output large gear through the intermediate pinion gear 8 and the intermediate large gear 10 on the intermediate shaft 9 and 9. 13 rotates. Since the output gear 13 is empty on the output shaft 1, the output shaft 1 will not rotate. During the rotation of the output gear 13, the ratchet 5 restricts the ratchet 11 under the action of the compression torsion spring 4. rotation, therefore, the energy-storage torsion spring 12 installed between the output gear 13 and the ratchet 11 stores energy, and when the lever 7 on the output gear 13 rotates to contact the pawl arm 501, the pawl 5 rotates around the support The rack 6 rotates and the pawl 5 cancels the restriction on the ratchet 11. In this state, the energy storage torsion spring 12 releases energy. At this time, the ratchet 11 and the outer ring 301 of the overrunning clutch 3 rotate. Due to the characteristics of the overrunning clutch 3, the outer ring 301 of the overrunning clutch 3 rotates. The forward rotation speed of the ring 301 is greater than that of the inner ring 302, and the inner ring 302 rotates accordingly, thereby realizing the rotation of the output shaft 1. When the lever 7 moves to the critical point of contact with the pawl arm 501 (the dotted line position in Figure 6) , the energy storage spring 12 is fully released, the pawl 5 rebounds in reverse under the action of the compression torsion spring 4 and presses on the ratchet 11 to limit the rotation of the ratchet 11. The outer ring 301 of the overrunning clutch 3 stops rotating with the ratchet 11, and the overrunning clutch 3 The forward speed of the outer ring 301 is smaller than that of the inner ring 302, and the inner ring 302 of the overrunning clutch breaks away from the outer ring 301 and continues to rotate with inertia and output to stop.

The principle of the mode switching mechanism is as follows:

The photoelectric sensor 23 is used to sense the photoelectric signal reflected on the reflective column 24. By sensing the interval t of the photoelectric signal reflected on the reflective column 24 twice, through 360°/t, the angular velocity of the input shaft 17 can be calculated by relying on the microcontroller. , and determine the level of the input speed through the calculated angular velocity value (preset judgment value, when it is higher than the judgment value, it is high speed, when it is lower than the judgment value, it is low speed). Through the high and low speed judgment, the single-chip microcomputer controls the electric push rod 19 Telescope, thereby driving the sliding sleeve 15 to move horizontally on the input shaft 17;

In addition, a limit plate 21 is provided at the lower end of the shift fork 20 at the end of the electric push rod 19. Distance sensors 22 are provided on both sides of the limit plate 21 along the axial direction of the input shaft 17 for limiting the maximum stroke of the sliding sleeve 15. The signal sent by the sensor 22 controls the start and stop of the electric push rod 19 to protect the sliding sleeve 15 and the electric push rod 19 .

Claims (8)

1. The utility model provides a high low speed input dual mode transmission, includes supporter (2), characterized by: the two ends of the top surface of the support body (2) are respectively provided with an output shaft (1) and an input shaft (17), the input shaft (17) is provided with an input pinion (16), the output shaft (1) is provided with an output large gear (13), the top surface of the support body (2) is also provided with an intermediate shaft (9), two ends of the intermediate shaft (9) are respectively provided with an intermediate pinion (8) and an intermediate large gear (10), the intermediate pinion (8) is meshed with the output large gear (13), and the intermediate large gear (10) is meshed with the input pinion (16);

the output shaft (1) and the input shaft (17) are coaxially arranged, a first end tooth (1601) is arranged on one surface of the input pinion (16) facing the output shaft (1), an output shaft clutch wheel (14) is connected to one end of the output shaft (1) close to the input shaft (17) in a key way, a second end tooth (1401) is arranged on one surface of the output shaft clutch wheel (14) facing the input shaft (17), a sliding sleeve (15) is connected to the input shaft (17) between the output shaft clutch wheel (14) and the input pinion (16) in a key way, and a first sliding sleeve end tooth (1501) and a second sliding sleeve end tooth (1502) are respectively arranged at two ends of the sliding sleeve (15);

the output shaft (1) is provided with an overrunning clutch (3) on one side far away from the output shaft (1), and a ratchet wheel (11) is arranged on the overrunning clutch (3);

an energy storage torsion spring (12) is arranged on the output shaft (1) between the output large gear (13) and the ratchet wheel (11);

a supporting frame (6) is arranged on the supporting body (2), a pawl (5) is arranged on the supporting frame (6), the pawl (5) is sleeved on the supporting frame (6), a compression torsion spring (4) is sleeved on the supporting frame (6), a torsion arm at one end of the compression torsion spring (4) is connected with the pawl (5), and a pawl arm (501) of the pawl (5) is inserted into a tooth slot of a ratchet wheel (11);

a deflector rod (7) is further arranged on one surface of the output large gear (13) facing the overrunning clutch (3), and a pawl arm (501) of the pawl (5) is arranged on the movement track of the deflector rod (7);

the output large gear (13) and the ratchet wheel (11) are respectively provided with a torsion spring hanging plate (18) on the opposite sides, a torsion spring body (1201) of the energy storage torsion spring (12) is coaxially arranged with the output shaft (1), and hook-shaped torsion arms (1202) at two ends of the energy storage torsion spring (12) respectively penetrate through holes on the two torsion spring hanging plates (18);

an inner ring (302) of the overrunning clutch (3) is connected with the output shaft (1) in a key way, and an outer ring (301) of the overrunning clutch (3) is connected with the ratchet wheel (11) in a key way.

2. A high and low speed input dual mode transmission as defined in claim 1, wherein: the input pinion (16) is arranged on the input shaft (17) in a sleeved mode, the output large gear (13) is arranged on the output shaft (1) in a sleeved mode, and the middle pinion (8) and the middle large gear (10) are connected with the middle shaft (9) in a key mode.

3. A high and low speed input dual mode transmission as defined in claim 1, wherein: the output shaft (1) is provided with a cylindrical boss (101) at one end close to the input shaft (17), and the input shaft (17) is provided with an input shaft end counter bore (1701) matched with the cylindrical boss (101) at one end close to the output shaft (1).

4. A high and low speed input dual mode transmission as defined in claim 1, wherein: the support body (2) on still be equipped with mode switching mechanism, mode switching mechanism includes electric putter (19), electric putter (19) are fixed to be set up on support body (2), push rod (1901) of electric putter (19) are horizontal to setting up, push rod (1901) tip is equipped with perpendicular to push rod (1901) and sets up shift fork (20), push rod (1901) and shift fork (20) all set up on same vertical face with input shaft (17), the "U" shape mouth (2001) of shift fork (20) upper end is connected with annular groove (1503) that sliding sleeve (15) middle part set up.

5. A high and low speed input dual mode transmission as defined in claim 4, wherein: the bottom of the shifting fork (20) is provided with a limiting plate (21), the end direction of the limiting plate (21) is parallel to the axial direction of the input shaft (17), a distance sensor (22) is fixedly arranged on a supporting body (2) at two ends of the limiting plate (21), and the distance sensor (22) and the limiting plate (21) are arranged on the same horizontal height.

6. A high and low speed input dual mode transmission as defined in claim 5, wherein: the input shaft (17) is also provided with a speed measuring wheel (25), one side of the speed measuring wheel (25) is provided with a photoelectric sensor (23), and one surface of the speed measuring wheel (25) facing the photoelectric sensor (23) is provided with a reflecting column (24) corresponding to the photoelectric sensor (23).

7. A high and low speed input dual mode transmission as defined in claim 6, wherein: the distance between the photoelectric sensor (23) and the input shaft (17) is equal to the distance between the reflecting column (24) and the input shaft (17).

8. A high and low speed input dual mode transmission as defined in claim 6, wherein: the photoelectric sensor (23) and the distance sensor (22) are connected with a singlechip, and the singlechip is also connected with an electric push rod (19).