TWM627283U - Power output transmission device for use in vehicles - Google Patents

Abstract

The utility model relates to an output transmission device for a vehicle, which provides the functions of simplified structure, simple assembly, and reduced space volume. The output transmission device includes an output gear set and a differential mechanism combining the output gear sets; the output gear set has a plurality of output gears with different diameters, which can rotatably drive one of the output shafts of the differential mechanism to rotate and output power. And, the output gear set is provided with a disc body and a gear part arranged on the disc body; wherein the disc body of the output gear with the smallest diameter is provided with a combination part, which cooperates with the fixer so that the output gear with the smallest diameter is directly fixed on the output shaft. On one wing; improve the complicated, troublesome and time-consuming assembly of the old method.

Description

Power transmission for vehicles

This creation is related to an output transmission device for vehicles; in particular, it refers to a technology that makes one of the output gears in the output gear set directly fixed to the differential mechanism to achieve the functions of reducing volume, simplifying assembly and structure.

It is a known art to apply to vehicles or electric vehicles, such as transmissions, gear sets to transmit power, differentials, etc., to make the vehicle move forward and backward. For example, Taiwan No. 87217364 "Automobile Transmission Device" (ie, US 6146306 "AUTOMOBILE TRANSMISSION DEVICE"), a patent case, provides a typical embodiment.

The variable speed transmission systems of conventional vehicles include manual, automatic, and continuous variable speed transmission systems; they pass the power of the engine shaft or motor shaft through a transmission control mechanism, an input gear set mounted on an input shaft, And devices such as (bevel gear) differential mechanism and output gear set arranged on an output shaft, so that the power is transmitted to the output shaft, so that the vehicle can obtain the movement of different speed ratios.

Basically, the speed change control mechanism includes a plurality of spring-like bodies and control push cylinders that are respectively fitted inside and outside the input gear set; through manual or automatic speed control, the motor brakes a worm wheel to rotate, and selectively drives different balls ( or push rod) to push the control push cylinder to make the spring body and the input gear set form an engaged or non-engaged state, so that the input gear sets with different numbers of teeth can respectively drive the output gear set and the differential mechanism, so that the output The axles generate different rotational speeds to drive the vehicle.

The old law also discloses the means of improving the components or components of the differential mechanism; for example, Taiwan No. 104213496 "Differential Structure Improvement", No. 106203295 "Vehicle Differential Control System", No. 96201922 "Differential Gear" Locking Device", Patent No. 92213712 "Differential Device for Vehicle Gearbox", etc., provide possible embodiments.

A subject related to the structural design, operation, and application of vehicle transmissions and differentials is that the combination between the prior art differential mechanism and the output gear set must use multiple retaining rings, bearings (for example, balls, rollers, etc.). Needle, one-way, thrust bearing, etc.) and other parts to maintain the stability of their freely rotating output power, so it forms a type of long-term limited to the inherent transmission mechanism, so that the traditional transmission and differential devices usually exist. Large, complex, cumbersome to assemble, time-consuming and costly; this is not what we expected.

Typically, these references show design skills in the structure and application of conventional transmissions and differentials in the context of vehicle systems. If the redesign considers the cooperation of the output transmission mechanism and the differential device, its mechanism design conforms to the conditions of simplified structure, and its structure is different from those of the conventional ones, and its operation and power transmission are simpler and more direct. , it will be able to change its power transmission type, which is different from the old method; or further reduce the space volume occupied by the transmission, differential device (or the entire output transmission system), not only relatively increase the mobility and configuration of the vehicle space , which is also beneficial to simplify the assembly operation of personnel, and improve the complex, troublesome, time-consuming and high cost of the old method of assembly; and these issues are not taught or specifically disclosed in the above reference materials.

The main purpose of this creation is to provide an output transmission device for vehicles, which provides a simplified structure, simple assembly, and reduced space and volume. The output transmission device includes an output gear set and a differential mechanism combining the output gear sets; the output gear set has a plurality of output gears with different diameters, which can rotatably drive one of the output shafts of the differential mechanism to rotate and output power. by And, the output gear set is provided with a disc body and a gear part arranged on the disc body; wherein the disc body of the output gear with the smallest diameter is provided with a combination part, which cooperates with the fixer so that the output gear with the smallest diameter is directly fixed on the output shaft. On one wing; improve the complicated, troublesome and time-consuming assembly of the old method.

According to an output transmission device for a vehicle according to the present invention, the output gear set includes a first output gear, a second output gear and/or a third output gear; the diameter of the first output gear is larger than the diameter of the second output gear, and the second output gear The diameter of the output gear is larger than the diameter of the third output gear. Therefore, the third output gear is provided with the above-mentioned disc body and the combination part; and, corresponding to the combination part of the third output gear, the wing part of the differential mechanism is also equipped with a combination part, so as to cooperate with the holder to directly and easily connect the third output gear. The structural type in which the gears are fixed on the differential mechanism.

According to the output transmission device for a vehicle according to the present invention, the first output gear and/or the second output gear of the output gear set are located away from the gear portion to form an assembly area, so that the first output gear and the second output gear are assembled. Set the combined output shaft barrel. And, the assembly area is provided with at least a first section and a second section, the first section and the second section are respectively equipped with bearing assemblies to form at least two rotation support points, so that the first output gear and/or the second output gear can obtain Stable transmission.

10: Input gear set

11: The first input gear

12: The second input gear

13: The third input gear

20: Shift control section

40: Bearing

45: One-way bearing

50: Auxiliary bearing

55: Retainer

60: Output gear set

61: The first output gear

62: The second output gear

63: The third output gear

64: Disc body

65: Gear Department

66: Assembly area

67: First paragraph

68: Second paragraph

69, 79: Combination Department

70: Differential mechanism

75: Output shaft barrel

76: Wings

80: Rotation shaft

90: output shaft

Figure 1 is a schematic cross-sectional view of the structure of the embodiment of the invention; it shows the relationship, position and structural coordination of the output gear set, the speed change control part, the output gear set and the differential mechanism.

Figure 2 is a schematic diagram of a partial structure of Figure 1; it depicts the structural combination of the output gear set and the output shaft barrel.

Figure 3 is another partial structural schematic diagram of Figure 1; it shows the structural combination of the output gear set, the differential mechanism, and the output shaft barrel.

Please refer to Figures 1 and 2, the output transmission device for vehicles of this creation includes a combination of a rotating shaft 80 (or input shaft) and an output shaft 90 connected to a power source; the power source (not shown in the figure) can be selected A type of motor, internal combustion engine or engine that causes the rotating shaft 80 to generate rotational power in a counter-clockwise or clockwise direction.

The figure shows that the rotary shaft 80 is provided with an input gear set 10 and a shift control portion 20 . The input gear set 10 selects a third or fourth gear transmission system; therefore, the input gear set 10 at least includes first to third input gears 11 to 13 . The input gear set 10 and the speed change control unit 20 belong to the prior art, so they will not be described in detail.

Relative to the input gear set 10, the output shaft 90 is provided with an output gear set 60 and a differential mechanism 70, which together constitute an output transmission device. In addition, the output gear set 60 is rotatably mounted on an output shaft 75 of the differential mechanism 70 . Therefore, when the rotational power of the rotating shaft 80 drives the output gear set 60 to rotate through the input gear set 10, the output gear set 60 will drive the differential mechanism 70 and the output shaft barrel 75 to rotate, so that the output shaft 90 can be driven at different speeds. Wheels turn.

In the adopted embodiment, the output gear set 60 also selects a third or fourth gear transmission system, which has a plurality of output gears with different diameters, including the first to third output gears 61 to 63 that can rotate freely, which are respectively related to the The first to third input gears 11 to 13 are engaged. A one-way bearing 45 is arranged between the first and second output gears 61 and 62 and the second and third output gears 62 and 63 respectively; so that each output gear 61 to 63 can only allow the lower-order gears to drive the higher-order gears. However, the higher first-order gear cannot drive the lower first-order gear.

Figures 1 and 2 also depict that the diameter of the first output gear 61 is larger than the diameter of the second output gear 62, and the diameter of the second output gear 62 is larger than the diameter of the third output gear 63; and, the output gear set 60 is provided with a disc body 64 and the gear part 65 arranged on the disc body 64 .

The figure shows that the first output gear 61 and/or the second output gear 62 of the output gear set 60 are in a position away from the gear part 65 to form an assembly area 66, so that the first output gear 61 and the second output gear 62 are matched with the bearing 40. (For example, needle roller bearings or the like), a combined output shaft barrel 75 is installed.

In a feasible embodiment, the assembly area 66 is provided with at least a first segment 67 and a second segment 68 of the protruding or connecting disc body 64 ; the above-mentioned (needle roller) bearing 40 is provided on the first segment 67 and the output shaft barrel 75 position between. And, the position between the second section 68 of the first output gear 61 and the second output gear 62 is provided with a pair of bearings 50, and the position between the second section 68 of the second output gear 62 and the output shaft 75 is also A sub bearing 50 is provided. The secondary bearing 50 may be selected as a ball bearing or the like.

Therefore, the first output gear 61 and the second output gear 62 cooperate with the bearing 40 of the first section 67 and the auxiliary bearing 50 of the second section 68, so that the first output gear 61 and the second output gear 62 respectively establish at least two rotations The mechanism of the support point enables the first output gear 61 and/or the second output gear 62 to obtain stable transmission.

Please refer to FIG. 3, in the preferred embodiment adopted, the disc body 64 of the output gear with the smallest diameter (ie, the third output gear 63) is provided with a combination portion 69, so that the third output gear 63 can be directly fixed on the On the output shaft barrel 75; improve the complicated, troublesome and time-consuming assembly of the old method.

In detail, the combination portion 69 of the third output gear 63 is configured as a bolt hole structure that can be combined with the holder 55 . And, the output shaft barrel 75 is formed with a protruding wing portion 76; corresponding to the combined portion 69 of the third output gear 63, the wing portion 76 of the output shaft barrel 75 (or the differential mechanism 70) is also configured with a bolt hole structure. The combination part 79 is convenient for personnel to operate the fixing device 55 to directly and simply fix the third output gear 63 on the output shaft barrel 75 (or the differential mechanism 70 ).

Typically, this output transmission for vehicles includes the following advantages and considerations compared to the old law:

1. The combined structure of the output gear set 60 , the differential mechanism 70 and the output shaft barrel 75 of the output transmission device has been redesigned for consideration. For example, the output gear set 60 is provided with a disk body 64 and an assembly area 66. The assembly area 66 forms a first section 67 and a second section 68, and the bearing 40 and the auxiliary bearing 50 are respectively arranged to establish at least two rotation support points. The power transmission of the first output gear 61 and the second output gear 62 obtains a stable effect; the third output gear 63 is provided with a combination part 69, and the differential mechanism 70 forms a wing part 76 and a combination part 79, and cooperates with parts such as the fixer 55, obviously Structural patterns that differ from conventional techniques.

2. In particular, the matching type of the third output gear 63 (or its combined part 69 ) and the differential mechanism 70 (or its wing part 76 and combined part 79 ) makes its mechanism design meet the conditions of simplified structure, Allowing personnel to directly cooperate with the function of the combination of the fixture 55, not only the type and structure of the operation assembly are different from those of the conventional ones, but also its operation and power transmission are made simpler and more direct, and its power transmission type is changed; Relatively, it also further reduces the space occupied by the transmission and the differential device (or the entire output transmission system), which relatively increases the mobility of the vehicle space, and also facilitates the simplification of personnel assembly operations. time-consuming, high cost, etc.

Therefore, this creation system provides an effective output transmission device for vehicles, whose spatial pattern is different from those of the prior art, and has incomparable advantages in the old law. It shows considerable progress. The copies meet the requirements of a new type of patent.

However, the above descriptions are only feasible embodiments of this creation, and are not intended to limit the scope of implementation of this creation, that is, all equivalent changes and modifications made in accordance with the scope of the patent application for this creation are covered by the scope of the patent for this creation. .

10: Input gear set

11: The first input gear

12: The second input gear

13: The third input gear

20: Shift control section

40: Bearing

45: One-way bearing

50: Auxiliary bearing

55: Retainer

60: Output gear set

61: The first output gear

62: The second output gear

63: The third output gear

64: Disc body

65: Gear Department

66: Assembly area

67: First paragraph

68: Second paragraph

69, 79: Combination Department

70: Differential mechanism

75: Output shaft barrel

76: Wings

80: Rotation shaft

90: output shaft

Claims (8)

An output transmission device for a vehicle, comprising a rotating shaft, an input gear set combining the rotating shaft, an output gear set and a differential mechanism combining the output gear set; the output gear set and the differential mechanism are arranged on an output shaft; The output gear set has a plurality of output gears with different diameters, which can rotatably drive one of the output shafts of the differential mechanism to rotate and output power; and The output gear set is provided with a disc body and a gear part arranged on the disc body; wherein the disc body of the output gear with the smallest diameter is provided with a combination part, so that the output gear with the smallest diameter is directly fixed on the output shaft barrel. The output transmission device for a vehicle as claimed in claim 1, wherein the rotating shaft is connected to a power source; the rotating shaft is provided with a speed change control part; The input gear set includes a first input gear, a second input gear and a third input gear; relative to the input gear set, the output gear set includes a first output gear, a second output gear and a third output gear, respectively meshing with the first input gear , the second input gear and the third input gear; A one-way bearing is respectively arranged between the first output gear and the second output gear, the second output gear and the third output gear; The diameter of the first output gear is larger than the diameter of the second output gear, and the diameter of the second output gear is larger than the diameter of the third output gear; The first output gear and the second output gear are at positions away from the gear part to form an assembly area, so that the first output gear and the second output gear are respectively matched with a bearing to install the combined output shaft barrel. The output transmission device for a vehicle as claimed in claim 2, wherein the assembly area is provided with a first section and a second section protruding from the disk body; the bearing is disposed between the first segment and the output shaft; and The position between the second section of the first output gear and the second output gear is provided with a pair of bearings, and the position between the second section of the second output gear and the output shaft tube is also provided with a pair of bearings, so that the first output The gear and the second output gear cooperate with the bearing of the first section and the auxiliary bearing of the second section to form at least two rotation support points respectively. The output transmission device for a vehicle as claimed in claim 1, wherein the assembly portion of the output gear with the smallest diameter is configured as a bolt hole structure that can be combined with a fixture; The output shaft barrel is formed with a protruding wing portion; Corresponding to the combination part of the output gear with the smallest diameter, the wing part of the output shaft barrel is configured with a combination part, and the combination part on the wing part forms a bolt hole structure; and A retainer combines the combined part of the output gear with the smallest diameter and the combined part of the wing. The output transmission device for a vehicle as claimed in claim 2, wherein the assembly portion of the third output gear is configured as a bolt hole structure that can be combined with a fixture; The output shaft barrel is formed with a protruding wing portion; Corresponding to the combination part of the output gear with the smallest diameter, the wing part of the output shaft barrel is configured with a combination part, and the combination part on the wing part forms a bolt hole structure; and A retainer combines the combined part of the output gear with the smallest diameter and the combined part of the wing. The output transmission device for a vehicle as claimed in claim 3, wherein the assembly portion of the third output gear is configured as a bolt hole structure that can be combined with a fixture; The output shaft barrel is formed with a protruding wing portion; Corresponding to the combination part of the output gear with the smallest diameter, the wing part of the output shaft barrel is configured with a combination part, and the combination part on the wing part forms a bolt hole structure; and A retainer combines the combined part of the output gear with the smallest diameter and the combined part of the wing. The output transmission device for a vehicle as claimed in claim 3, wherein the bearing is a needle bearing and the auxiliary bearing is a ball bearing. The output transmission device for a vehicle as claimed in claim 6, wherein the bearing is a needle bearing and the auxiliary bearing is a ball bearing.

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