CN214699047U

CN214699047U - Lever linkage machine

Info

Publication number: CN214699047U
Application number: CN202120486042.6U
Authority: CN
Inventors: 孔德群
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-03-08
Filing date: 2021-03-08
Publication date: 2021-11-12
Anticipated expiration: 2031-03-08

Abstract

The utility model discloses a lever linkage machine, which comprises two or more lever devices and a speed change device; the lever device comprises a crankshaft, connecting rods and ratchet wheels, wherein the crankshaft is connected with one end of the corresponding number of ratchet wheels through two or more connecting rods; the speed change device comprises a first gear, a second gear, a first gear shaft and a second gear shaft; or the speed changing device comprises a first gear, a second gearwheel, a second pinion, a third gear, a first gear shaft, a second gear shaft and a third gear shaft; the other end of the ratchet wheel is arranged on the first gear shaft; the second gear shaft or the third gear shaft of the speed change device is connected with the crankshaft of the next lever device, and the other end of the ratchet wheel of the next lever device is connected with the first gear shaft of the next speed change device in a sequential and cyclic manner. The utility model discloses a lever linkage machine utilizes lever principle, improves output torque, and transmission efficiency is high, and the energy consumption is low.

Description

Lever linkage machine

Technical Field

The utility model relates to a transmission machinery technical field, in particular to lever linkage machine.

Background

A drive train refers to a member or mechanism that transfers power from one part of a machine to another to move or operate the machine or machine component. Mechanical transmission refers to transmission that utilizes mechanical means to transmit power and motion. Generally, two categories can be distinguished: the transmission mechanism is driven by the friction force between the parts and the transmission of the driving part and the driven part, or by the middle part.

However, the conventional gear transmission mechanism, chain transmission mechanism, belt transmission mechanism, worm and gear transmission mechanism and the like have high mechanical loss, and the purpose of reducing energy consumption cannot be achieved. With the rapid development of the economy of China, the power machinery of fuel oil will discharge more pollution because of higher energy consumption, so that new energy is actively developed to replace fuel oil in various countries of the world. How to reduce the energy consumption of the transmission mechanism and improve the transmission efficiency is a technical problem to be solved urgently at present.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome prior art's defect and not enough, provide the lever linkage machine, utilize lever principle, improve output torque, transmission efficiency is high, and the energy consumption is low.

The purpose of the utility model can be realized by the following technical scheme: the lever linkage machine comprises two or more lever devices and a speed change device;

the lever device comprises a crankshaft, connecting rods and ratchet wheels, wherein the crankshaft is connected with one end of the corresponding number of ratchet wheels through two or more connecting rods;

the speed change device comprises a first gear, a second gear, a first gear shaft and a second gear shaft; the first gear is arranged on a first gear shaft, and the second gear is arranged on a second gear shaft; the first gear is meshed with the second gear; the other end of the ratchet wheel is arranged on the first gear shaft;

or the speed changing device comprises a first gear, a second gearwheel, a second pinion, a third gear, a first gear shaft, a second gear shaft and a third gear shaft; the first gear is arranged on a first gear shaft, and the second gearwheel and the second pinion are arranged on a second gear shaft; the third gear is arranged on a third gear shaft; the second small gear is meshed with the first gear, and the second large gear is meshed with the third gear; the other end of the ratchet wheel is arranged on the first gear shaft;

and the second gear shaft or the third gear shaft of the speed change device is connected with the crankshaft of the next lever device, and the other end of the ratchet wheel of the next lever device is connected with the first gear shaft of the next speed change device in a sequential and cyclic manner.

Furthermore, a plurality of balance weights are arranged on the crankshaft, and every two adjacent balance weights are connected through a connecting rod journal; every two adjacent counterweights are a pair of counterweights, and an angle of 360 degrees is formed between the first pair of counterweights and the last pair of counterweights.

Furthermore, twelve balance weights are arranged on the crankshaft, and the included angle between every two of the six pairs of balance weights is 60 degrees.

Furthermore, the ratchet wheel is of a structure with a large end and a small end, a disc is arranged at the large end, tooth-shaped structures are arranged inside the disc, and a rolling shaft is arranged near each tooth-shaped structure. The roller may define the ratchet to be able to move in only one direction.

Furthermore, a connecting rod mounting hole is formed in one end of the small end of the ratchet wheel, and a first gear shaft mounting hole is formed in the middle of the disc. The first gear shaft mounting hole is matched with the first gear shaft, and the connecting rod mounting hole is matched with the connecting rod.

Furthermore, the ratchet wheel is connected with the connecting rod through a connecting rod mounting hole and connected with the first gear shaft through a first gear shaft mounting hole.

Further, a spring structure is arranged on the surface of each tooth-shaped structure close to the roller. The spring structure can play a certain role in buffering.

Furthermore, the connecting rod comprises an upper connecting rod, a lower connecting rod, a piston and a cylinder barrel, the top of the lower connecting rod is connected with the piston, the cylinder barrel is sleeved outside the piston, and the top of the piston is connected with the upper connecting rod. The purpose of setting up the piston is to make the transmission more stable, and can play certain sealed effect.

Further, the crankshaft of the first lever device is connected with an external motor, and the second gear shaft or the third gear shaft of the last speed change device is used as an output shaft. With an external motor as a power source, the torque output by the output shaft will be several times the input torque.

Further, the lever device is mounted in the crankcase and the transmission device is mounted in the gearbox.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

the utility model discloses a lever linkage machine utilizes lever principle, has not only realized the reinforcement, reaches energy-conserving effect, makes last speed change gear's third gear shaft output speed reach required rotational speed again, has convenient to use, extensive applicability's advantage. The utility model discloses a but lever linkage machine wide application in transmission such as all kinds of machinery, vehicle, boats and ships, aviation, have extensive economic benefits and social.

Drawings

FIG. 1 is a schematic structural view of a lever linkage machine according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of the lever device and the transmission device respectively disposed in the crankcase and the transmission case according to the embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a crankshaft in an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a connecting rod according to an embodiment of the present invention;

FIG. 5 is a schematic structural view of a ratchet wheel according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a transmission according to an embodiment of the present invention.

Wherein: 11: crankshaft, 11-1: balance weight, 11-2: rod journal, 12: connecting rod, 12-1: upper link, 12-2: lower connecting rod, 12-3 piston, 12-4: cylinder barrel, 13: ratchet, 13-1: disc, 13-2 tooth structure, 13-3: roller, 13-4: first gear shaft mounting hole, 13-5: connecting rod mounting hole, 13-6: spring structure, 21: first gear, 22: second gear, 22-1: second gearwheel, 22-2: second pinion, 23: third gear, 24: first gear shaft, 25: second gear shaft, 26: third gear shaft, 3: a crankcase, 4: a gearbox.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.

As shown in figures 1 and 2, the lever linkage machine comprises two lever devices and two speed changing devices, wherein the lever devices are arranged in a crank case 3, and the speed changing devices are arranged in a gearbox 4.

The lever device comprises a crankshaft 11, a connecting rod 12 and a ratchet wheel 13. As shown in fig. 3, the crankshaft 11 is provided with twelve counterweights 11-1, and a connecting rod journal 11-2 is provided between each two adjacent counterweights, each two adjacent counterweights being referred to as a pair of counterweights, and the first and last pair of counterweights being at an angle of 360 degrees. In the embodiment, there are six pairs of balance weights, and the included angle between every two of the six pairs of balance weights is 60 degrees. One end of six connecting rods 12 is arranged on the connecting rod journal 11-2, and the other end is connected with one end of six ratchets 13. As shown in FIG. 4, the connecting rod 12 comprises an upper connecting rod 12-1, a lower connecting rod 12-2, a piston 12-3 and a cylinder 12-4, the top of the lower connecting rod 12-2 is connected with the piston 12-3, the cylinder 12-4 is sleeved outside the piston 12-3, and the top of the piston is connected with the upper connecting rod 12-1. The upper connecting rod 12-1 and the lower connecting rod 12-2 are respectively provided with a connecting hole, the connecting hole of the lower connecting rod 12-2 is sleeved on the connecting rod journal 11-2, and the connecting hole of the upper connecting rod 12-1 is connected with one end of the ratchet wheel 13 through a pin or other fixing piece. The other end of the ratchet wheel 13 is connected with a speed change device, as shown in fig. 5, the ratchet wheel 13 is in a structure with a big end and a small end, a disc 13-1 is arranged at the big end, tooth-shaped structures 13-2 are arranged inside the disc, and a roller 13-3 is arranged near each tooth-shaped structure. The end face of the tooth-shaped structure 13-2 corresponding to the roller 13-3 is provided with a spring structure 13-6. The roller 13-3 ensures that the ratchet wheel rotates in one direction, for example, in a counterclockwise direction in fig. 5, when the ratchet wheel rotates in a clockwise direction in fig. 5, the tooth-like structure 13-2 will abut against the roller 13-3, and the spring structure 13-6 will play a role of buffering to prevent the ratchet wheel from rotating in a clockwise direction. One end of the small head of the ratchet wheel is provided with a connecting rod mounting hole 13-5, and one end of the large head of the ratchet wheel is provided with a first gear shaft mounting hole 13-4. The connecting rod mounting hole is connected with the connecting hole of the upper connecting rod 12-1, and the first gear shaft mounting hole 13-4 is connected with the first gear shaft 24.

The structure of the second lever device is the same as that of the first lever device, and usually the crankshaft in the first lever device is connected with an external motor, under the driving of the external motor, the crankshaft 11 makes a rotating motion, and the connecting rod 12 makes a reciprocating up-and-down motion along with the rotation of the crankshaft 11, so as to drive the ratchet 13 to make a reciprocating up-and-down motion.

As shown in fig. 1, the first transmission includes a first gear 21, a second gear 22, a first gear shaft 24, and a second gear shaft 25. The first gear is mounted on a first gear shaft, the second gear is mounted on a second gear shaft, and the first gear is meshed with the second gear. The first transmission utilizes two gear sets to achieve the transmission requirements.

As shown in fig. 1 and 6, the second transmission includes a first gear 21, a second large gear 22-1, a second small gear 22-2, a third gear 23, a first gear shaft 24, a second gear shaft 25, and a third gear shaft 26. The first gear is arranged on a first gear shaft, the second large gear and the second small gear are arranged on a second gear shaft, and the third gear is arranged on a third gear shaft. The second small gear is meshed with the first gear, and the second large gear is meshed with the third gear. The second transmission utilizes three gear sets to achieve the transmission requirements. If other shifting objectives are to be achieved, the gear set can be reassembled and the appropriate gear parameters selected based on the desired shifting effect. The first transmission may be configured as the second transmission, and similarly, the second transmission may be configured as the first transmission.

When the ratchet wheel 13 moves up and down in a reciprocating manner, the first gear shaft 24 is driven to rotate, and due to the special structure of the ratchet wheel, the ratchet wheel only moves towards one direction, so that along with the reciprocating up and down movement of the ratchet wheel, the rotation of the ratchet wheel drives the first gear shaft 24 to rotate, and the first gear 21 is driven to rotate.

As can be seen from fig. 1 and 2, the first lever device is connected to the first gear shaft 24 of the first transmission through the ratchet 13, the second gear shaft 25 of the first transmission is connected to the crankshaft 11 of the second lever device, the second lever device is connected to the first gear shaft 24 of the second transmission through the ratchet 13, and the third gear shaft 26 of the second transmission is used as an output shaft, so that the input torque can be increased. According to the principle of the present embodiment, the number of the lever devices may be two or more, the number of the similar speed change devices may be two or more, and the plurality of lever devices and the speed change devices may be connected in a cycle in order with reference to the present embodiment.

The utility model discloses a theory of operation is: an external motor is used as a power source, the external motor is connected with a crankshaft of the first lever device through a belt pulley and used as power input to drive the crankshaft to rotate, the crankshaft rotates to drive the connecting rod to move up and down, the ratchet wheel also simultaneously reciprocates up and down, and the up-and-down reciprocating motion of the ratchet wheel drives a first gear shaft of the first speed change device to rotate at the same speed to drive the two groups of gears to rotate. The second gear shaft of the first speed variator is used as the input end of the crankshaft of the second lever device to drive the crankshaft of the second lever device to operate. Utilize the principle of lever linkage, the utility model discloses the device can make output torque be the multiple times of input torque to reach and improve transmission efficiency, reduce the purpose of energy consumption.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The lever linkage machine is characterized by comprising two or more lever devices and a speed change device;

2. The lever linkage machine according to claim 1, wherein a plurality of balance weights are arranged on the crankshaft, and every two adjacent balance weights are connected through a connecting rod journal; every two adjacent counterweights are a pair of counterweights, and an angle of 360 degrees is formed between the first pair of counterweights and the last pair of counterweights.

3. The lever linkage machine according to claim 2, wherein twelve counterweights are provided on the crankshaft, and the included angle between every two of the six pairs of counterweights is 60 degrees.

4. The lever linkage machine according to claim 1, wherein said ratchet wheel is in a big-end-small structure, a disc is arranged at the big-end-big end, tooth structures are arranged inside the disc, and a roller is arranged near each tooth structure.

5. The lever linkage machine according to claim 4, wherein a connecting rod mounting hole is formed at one end of the small end of the ratchet wheel, and a first gear shaft mounting hole is formed in the middle of the disc.

6. The lever linkage machine according to claim 5, wherein the ratchet wheel is connected to the link through a link mounting hole and connected to the first gear shaft through a first gear shaft mounting hole.

7. The lever linkage machine according to claim 4, 5 or 6, wherein a spring structure is arranged on the surface of each tooth structure close to the roller.

8. The lever linkage machine according to claim 1, wherein the connecting rod comprises an upper connecting rod, a lower connecting rod, a piston and a cylinder, the top of the lower connecting rod is connected with the piston, the cylinder is sleeved outside the piston, and the top of the piston is connected with the upper connecting rod.

9. The lever linkage machine according to claim 1, wherein the crankshaft of the first lever device is connected to an external motor, and the second gear shaft or the third gear shaft of the last speed changing device is used as an output shaft.

10. The lever linkage machine according to claim 1, wherein said lever device is mounted in a crankcase and said transmission device is mounted in a gearbox.