CN217056199U

CN217056199U - Speed-regulating wheel train

Info

Publication number: CN217056199U
Application number: CN202221002034.0U
Authority: CN
Inventors: 王盛禹; 李守青; 杨康; 尹宏军; 白玉立
Original assignee: Anhui Quanchai Engine Co Ltd
Current assignee: Anhui Quanchai Engine Co Ltd
Priority date: 2022-04-27
Filing date: 2022-04-27
Publication date: 2022-07-26
Anticipated expiration: 2032-04-27

Abstract

The utility model discloses a speed-regulating wheel train, which relates to the technical field of diesel engines and comprises a power wheel, a driven wheel, a tension wheel and a toothed belt, wherein the power wheel comprises a rotating disc, a plurality of U-shaped rods which are distributed radially are arranged on the rotating disc in a sliding manner along the radial direction, each U-shaped rod is rotatably connected with a toothed roller through a bearing, the toothed belt is sleeved on each toothed roller, the toothed belt is also sleeved on the driven wheel, and the tension wheel is used for tensioning the toothed belt; the driving mechanism is used for driving the U-shaped rods to synchronously slide so as to adjust the distance between each gear roller and the center of the rotating disc. According to the speed-regulating wheel train, the rotating disc is driven by an initial power source, and the driving mechanism drives the U-shaped rods on the rotating disc to synchronously slide so as to regulate the distance between each gear roller and the center of the rotating disc, so that the diameter of the annular wheel formed by each gear roller is regulated, the rotation speed regulation of the driven wheel is further realized, and the instantaneous speed of the driven wheel is regulated under the condition that the rotation speed of the initial power source is not actively regulated.

Description

Speed regulating wheel train

Technical Field

The utility model relates to a diesel engine technical field specifically is a speed governing train.

Background

In the prior art, the speed regulation of the gear train is usually realized by regulating the rotating speed of an initial power source (such as a motor and an engine) according to the rotating speed requirement of an execution component, under some conditions, the rotating speed of the initial power source of the gear train cannot be regulated along with the requirement of the execution component, and at the moment, under the condition that the rotating speed of the initial power source is not regulated, the rotating speed of the execution component cannot be regulated.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a speed governing train to solve the weak point among the above-mentioned prior art.

In order to achieve the above object, the present invention provides the following technical solutions: a speed-regulating wheel train comprises a power wheel, a driven wheel, a tension wheel and a toothed belt, wherein the power wheel comprises a rotating disc, a plurality of U-shaped rods distributed in a radial manner are arranged on the rotating disc in a sliding manner along the radial direction, one end of each U-shaped rod is connected with the rotating disc in a sliding manner, the other end of each U-shaped rod is connected with a toothed roller in a rotating manner through a bearing, the toothed belt is sleeved on each toothed roller, the toothed belt is further sleeved on the driven wheel, and the tension wheel is used for tensioning the toothed belt; the driving mechanism is used for driving the U-shaped rods to synchronously slide so as to adjust the distance between each gear roller and the center of the rotating disc.

Furthermore, a sliding groove is formed in the rotating disc in the radial direction, and one end of the U-shaped rod is arranged in the sliding groove in a sliding mode.

Furthermore, the driving mechanism comprises a plurality of first cone pulleys, second cone pulleys and a hydraulic cylinder, wherein the first cone pulleys are in one-to-one rotating connection with the U-shaped rods, the second cone pulleys are simultaneously in rolling fit with the conical surfaces of the first cone pulleys, and the hydraulic cylinder is used for driving the second cone pulleys to move along the axial direction of the rotating disc.

Furthermore, the power wheel also comprises an elastic unit, and the elastic force of the elastic unit acts on each U-shaped rod towards the center of the annular wheel.

Furthermore, the elastic unit is a rubber band or an annular spring sleeved on each U-shaped rod.

Furthermore, the elastic unit comprises a plurality of springs which are in one-to-one correspondence with the U-shaped rods, one ends of the springs are fixedly connected to the corresponding U-shaped rods, and the other ends of the springs are fixedly connected to the rotating disc.

Compared with the prior art, the utility model provides a pair of speed governing train, the drive of initial power supply is accepted to the rolling disc, each U-shaped pole synchronous slip on driving mechanism drive rolling disc, with the distance at each fluted roller distance rolling disc center of adjusting, thereby adjust the diameter of the cyclic annular wheel that is formed by each fluted roller, and then realize the rotational speed regulation from the driving wheel, realize increasing (the cyclic annular wheel diameter is transferred greatly) or reducing (the cyclic annular wheel diameter is transferred and is reduced) the instantaneous speed from the driving wheel under the condition of the initial power supply (like the bent axle of diesel engine) rotational speed of not active adjustment.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

Fig. 1 is a schematic view of an overall structure provided by an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a driving mechanism according to an embodiment of the present invention.

Description of reference numerals:

1. a power wheel; 1.1, rotating a disc; 1.2, a U-shaped rod; 1.3, a toothed roller; 1.4, a driving mechanism; 1.41, a first cone pulley; 1.42, a second cone; 1.43, a hydraulic cylinder; 1.5, an elastic unit; 2. a driven wheel; 3. a tension pulley; 4. toothed belt.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the attached drawings.

Referring to fig. 1-2, an embodiment of the present invention provides a speed-adjusting wheel train, including a power wheel 1, a driven wheel 2, a tension wheel 3 and a toothed belt 4, wherein the toothed belt 4 is sleeved on the power wheel 1, the driven wheel 2 and the tension wheel 3, the tension wheel 3 is used for tensioning the toothed belt 4, the power wheel 1 includes a rotating disc 1.1, the rotating disc 1.1 is driven by an initial power source (such as a crankshaft of a diesel engine), a plurality of radially distributed U-shaped rods 1.2 are arranged on the rotating disc 1.1 in a sliding manner along a radial direction, one end of each U-shaped rod 1.2 is slidably arranged in the sliding groove, the other end of each U-shaped rod 1.2 is rotatably connected to a toothed roller 1.3 through a bearing, and the toothed belt 4 is sleeved on an annular wheel formed by the toothed rollers 1.3; the speed regulating wheel train further comprises a driving mechanism 1.4 which is used for driving each U-shaped rod 1.2 to synchronously slide so as to adjust the distance between each toothed roller 1.3 and the center of the rotating disc 1.1 and adjust the diameter of the annular wheel. The power wheel 1 is a component for providing power relative to the speed regulating wheel train, and still needs to be driven by an original power source.

Compared with the prior art, the utility model provides a pair of speed governing train, the drive of initial power supply is accepted to rolling disc 1.1, through each U-shaped pole 1.2 synchronous slip on the actuating mechanism 1.4 drive rolling disc 1.1, with the distance at each fluted roller 1.3 distance rolling disc 1.1 center of adjusting, thereby adjust the diameter of the cyclic annular wheel that is formed by each fluted roller 1.3, and then realize adjusting from the rotational speed of driving wheel 2, realize increasing (cyclic annular wheel diameter is transferred greatly) or reducing (cyclic annular wheel diameter is transferred and is diminished) from the instantaneous speed of driving wheel 2 under the condition of the initial power supply of initiative regulation (like the bent axle of diesel engine) rotational speed.

As a preferable technical solution of this embodiment, the driving mechanism 1.4 includes a plurality of first cone pulleys 1.41, second cone pulleys 1.42, and a hydraulic cylinder 1.43, each first cone pulley 1.41 is connected to each U-shaped rod 1.2 in a one-to-one rotating manner, the second cone pulleys 1.42 are simultaneously movably attached to the conical surfaces of the first cone pulleys 1.41, and the hydraulic cylinder 1.43 is used for driving the second cone pulleys 1.42 to move along the axial direction of the rotating disc 1.1, that is, the open ends of the hydraulic rods are coaxially fixedly connected to the second cone pulleys 1.42. When the hydraulic cylinder 1.43 drives the second bevel wheel 1.42 to move closer to the rotating disk 1.1, the second bevel wheel 1.42 simultaneously presses each first bevel wheel 1.41, so that the radiation of each first bevel wheel 1.41 is dispersed, the diameter of an annular wheel consisting of rotating gears is increased, and the rotating speed of the driven wheel 2 is increased; when the hydraulic cylinder 1.43 drives the second cone pulley 1.42 to move away from the rotating disc 1.1, the first cone pulleys 1.41 are folded, so that the diameter of the annular wheel is reduced, and the rotating speed of the driven wheel 2 is further reduced. The driving mechanism 1.4 realizes the adjustment of the diameter of the annular wheel under the condition that the power wheel 1 does not stop rotating, and realizes the adjustment of the rotating speed of the driven wheel 2 in the speed regulating wheel system during operation.

As a preferable technical solution of this embodiment, the power wheel 1 includes an elastic unit 1.5, and the elastic force of the elastic unit 1.5 acts on each U-shaped rod 1.2 toward the center of the annular wheel. Preferably, the elastic unit 1.5 is a rubber band or a ring spring sleeved on each U-shaped rod 1.2. Preferably, the elastic unit 1.5 includes a plurality of springs corresponding to the U-shaped rods 1.2 one to one, one end of each spring is fixedly connected to the corresponding U-shaped rod 1.2, and the other end of each spring is fixedly connected to the rotating disc 1.1. The elastic unit 1.5 can drive the rotating toothed rollers 1.3 to slide together when the second cone pulley 1.42 moves away from the rotating disc 1.1, namely, the diameter of the annular wheel is reduced.

Certain exemplary embodiments of the present invention have been described above by way of illustration only, and it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims

1. A speed-regulating wheel train comprises a power wheel, a driven wheel, a tension wheel and a toothed belt, and is characterized in that the power wheel comprises a rotating disc, a plurality of U-shaped rods distributed in a radial shape are arranged on the rotating disc in a sliding mode along the radial direction, one end of each U-shaped rod is connected with the rotating disc in a sliding mode, the other end of each U-shaped rod is connected with the toothed roller in a rotating mode through a bearing, the toothed belt is sleeved on each toothed roller, the toothed belt is further sleeved on the driven wheel, and the tension wheel is used for tensioning the toothed belt; the driving mechanism is used for driving the U-shaped rods to synchronously slide so as to adjust the distance between each toothed roller and the center of the rotating disc.

2. The speed governing wheel train of claim 1, wherein the rotating disc is radially provided with a sliding groove, and one end of the U-shaped rod is slidably disposed in the sliding groove.

3. The speed governing wheel train of claim 1, wherein the driving mechanism comprises a plurality of first cone pulleys, second cone pulleys and a hydraulic cylinder, the first cone pulleys are rotatably connected with the U-shaped rods in a one-to-one correspondence manner, the second cone pulleys are simultaneously in rolling fit with the conical surfaces of the first cone pulleys, and the hydraulic cylinder is used for driving the second cone pulleys to move along the axial direction of the rotating disc.

4. A speed governing wheel train according to claim 1, wherein the power wheel further comprises resilient members, the resilience of which acts on the U-bars towards the centre of the annular wheel.

5. A speed governing wheel train according to claim 4, wherein the resilient unit is a rubber band or a ring spring fitted over each U-shaped bar.

6. A speed governing wheel train according to claim 4, wherein the resilient unit comprises a plurality of springs in one-to-one correspondence with the U-bars, one end of each spring being fixedly connected to a corresponding U-bar and the other end of each spring being fixedly connected to the rotatable disc.