CN213479102U

CN213479102U - Gear assembly and transmission system

Info

Publication number: CN213479102U
Application number: CN202022089683.6U
Authority: CN
Inventors: 乔芳; 许成; 李扬; 马高强; 李栋; 于健
Original assignee: Weichai Power Co Ltd
Current assignee: Weichai Power Co Ltd
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2021-06-18
Anticipated expiration: 2030-09-22

Abstract

The utility model discloses a gear assembly and transmission system belongs to gear machining technical field. The gear assembly comprises a first gear, a second gear and a cushioning connecting assembly, wherein the first gear and the second gear are connected between two pieces of equipment in transmission connection, the first gear and the second gear are coaxially arranged, a first annular groove is formed in the first gear, a second annular groove is formed in the second gear, the first annular groove and the second annular groove are opposite to each other to form an annular accommodating cavity, and the central axis of the annular accommodating cavity is overlapped with the central axis of the first gear; bradyseism coupling assembling includes bradyseism structure and a plurality of slider, and a plurality of sliders set up in the annular holds the chamber, and the bradyseism structure sets up between adjacent slider, and two adjacent sliders can relative motion. The gear assembly and the transmission system can play a role in cushioning in the transmission process of the equipment.

Description

Gear assembly and transmission system

Technical Field

The utility model relates to a gear machining technical field especially relates to a gear assembly and transmission system.

Background

Among the various forms of transmission, gear transmissions are most widely used in modern machinery. This is because the gear transmission has the following characteristics: the transmission precision is high, the accurate transmission ratio cannot be ensured by belt transmission, the constant instantaneous transmission ratio cannot be realized by chain transmission, but the transmission ratio of the involute gear which is commonly used in modern times is accurate and constant in theory, so that the involute gear not only is a key requirement for precision machinery and instruments, but also is an important condition for lightening dynamic load and realizing stable transmission under high-speed heavy load; the application range is wide.

The traditional intermediate gear for transmission is generally rigid, for example, the intermediate gear between an engine and a water pump has high engine speed and high explosion pressure, the torsional vibration of a crankshaft is large, and the vibration of the engine is transmitted to the water pump through the gear, so that the shaft of the water pump vibrates excessively, a water seal is damaged, and the water pump has water leakage faults.

Therefore, there is a need for a gear assembly and transmission system that can provide cushioning to solve the above-mentioned problems in the prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a gear assembly and transmission system, this gear assembly and transmission system can play the bradyseism effect at the transmission of equipment in-process.

To achieve the purpose, the utility model adopts the following technical proposal:

a gear assembly, comprising:

the gear box comprises a first gear and a second gear, wherein the first gear and the second gear are connected between two pieces of equipment in transmission connection, the first gear and the second gear are coaxially arranged, a first annular groove is formed in the first gear, a second annular groove is formed in the second gear, the first annular groove and the second annular groove are opposite to form an annular accommodating cavity, and the central axis of the annular accommodating cavity is overlapped with the central axis of the first gear;

bradyseism coupling assembling, it is including bradyseism structure and a plurality of slider, a plurality of the slider set up in the annular holds in the chamber, the bradyseism structure set up in adjacent between the slider, adjacent two the slider can relative motion.

As a preferable technical scheme of the gear assembly, the thickness of the sliding block in the radial direction is equal to that of the annular containing cavity in the radial direction.

As a preferred technical scheme of the gear assembly, one of the two adjacent sliding blocks is fixedly connected to the first gear, and the other sliding block is fixedly connected to the second gear.

As a preferred technical scheme of the gear assembly, a plurality of sliding blocks are uniformly arranged in the annular accommodating cavity.

As a preferred technical scheme of a gear assembly, the bradyseism structure includes a plurality of spring assembly, spring assembly sets up in adjacent two between the slider, spring assembly includes the spring that a plurality of diameters progressively increase that from inside to overcoat was established, and is a plurality of the both ends of spring are equallyd divide and are do not supported on adjacent two the slider.

As a preferred technical scheme of a gear assembly, the spring group comprises an outer spring and an inner spring, and the outer spring is sleeved outside the inner spring.

As a preferred technical scheme of a gear assembly, both ends of slider all are provided with first spacing portion and second spacing portion, outer spring with the inner spring respectively the butt in on first spacing portion with on the second spacing portion.

As a preferred technical scheme of the gear assembly, the first limiting part and the second limiting part are respectively a first boss with the same inner diameter as the outer spring and a second boss with the same inner diameter as the inner spring; or the first limiting part and the second limiting part are respectively a first groove with the same outer diameter as the outer spring and a second groove with the same outer diameter as the inner spring.

As a preferred technical scheme of the gear assembly, a threaded hole is formed in the slider, a fixing hole is formed in the first gear and/or the second gear, and the gear assembly further comprises a fastening assembly, wherein the fastening assembly fixes the slider on the first gear or the second gear through the fixing hole and the threaded hole.

To achieve the above object, the present invention further provides a transmission system including the gear assembly as described above.

The utility model provides a gear assembly and transmission system, transmission system includes the gear assembly, this gear assembly includes first gear, second gear and bradyseism coupling assembling, wherein, first gear and second gear are connected between the equipment of two transmission connections, and first gear and second gear coaxial arrangement, be provided with first annular groove on the first gear, be provided with the second annular groove on the second gear, first annular groove and second annular groove just form annular holding chamber, the axis in annular holding chamber coincides with the axis of first gear; bradyseism coupling assembling includes bradyseism structure and a plurality of slider, a plurality of sliders set up in the annular holds the chamber, the bradyseism structure sets up between adjacent slider, two adjacent sliders can relative motion, the equipment that is connected as first gear and second gear is at driven in-process, distortion vibration takes place for one of them equipment, two adjacent sliders that are arranged in the annular holds the chamber take place relative motion, and then make the bradyseism structure compression that is arranged in between two sliders or extend in order to play the effect of bradyseism, thereby avoid the damage of equipment.

Drawings

FIG. 1 is a schematic structural view of a gear assembly according to an embodiment of the present invention;

fig. 2 is a side view of a gear assembly provided in accordance with an embodiment of the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 2 according to an embodiment of the present invention;

fig. 4 is a cross-sectional view of B-B in fig. 2 according to an embodiment of the present invention.

Reference numerals:

1. a first gear; 11. a first annular groove; 2. a second gear; 21. a second annular groove; 3. a cushioning connection assembly; 31. a cushioning structure; 311. a spring set; 3111. an outer spring; 3112. an inner spring; 32. a slider; 321. a first limiting part; 322. a second limiting part; 4. a fastening assembly; 41. a stud; 42. and a nut.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The present embodiments provide a transmission system including a crankshaft, a gear assembly, and a water pump, wherein the gear assembly is coupled between the crankshaft and the water pump.

As shown in fig. 1 to 4, the gear assembly includes a first gear 1, a second gear 2 and a cushioning connecting assembly 3, wherein the first gear 1 and the second gear 2 are connected between two devices in transmission connection, and the first gear 1 and the second gear 2 are coaxially arranged, the first gear 1 is provided with a first annular groove 11, the second gear 2 is provided with a second annular groove 21, the first annular groove 11 and the second annular groove 21 are opposite to each other to form an annular accommodating cavity, and a central axis of the annular accommodating cavity coincides with a central axis of the first gear 1; bradyseism coupling assembling 3 includes bradyseism structure 31 and a plurality of slider 32, and a plurality of sliders 32 set up in the annular holds the chamber, and bradyseism structure 31 sets up between adjacent slider 32, and two adjacent sliders 32 can relative motion.

Preferably, in this embodiment, the gear assembly is connected between the engine and the water pump. Alternatively, in other embodiments, the gear assembly may be selectively connected between other two drive-connected devices. One of the first gear 1 and the second gear 2 in the gear assembly is connected to the engine, and the other is connected to the water pump. Preferably, in the present embodiment, the first gear 1 is connected to the engine, and the second gear 2 is connected to the water pump.

The engine transmits the moment of torsion to first gear 1, be provided with bradyseism structure 31 and a plurality of slider 32 in the annular cavity of holding between first gear 1 and the second gear 2, bradyseism structure 31 sets up between adjacent slider 32, two adjacent sliders 32 can relative motion, transmit the moment of torsion for second gear 2 in-process when first gear 1, bradyseism structure 31 that is located between first gear 1 and the second gear 2 is compressed, when the deflection reaches and to be able to make first gear 1 drive second gear 2 rotate, bradyseism structure 31 is no longer compressed, realize that first gear 1 transmits the moment of torsion for the purpose of second gear 2, second gear 2 further transmits the moment of torsion to the water pump. When the engine takes place the distortion vibration, be located two adjacent sliders 32 in the annular chamber of holding and further take place relative motion, and then make the bradyseism structure 31 that is located between two sliders 32 compress once more or extend in order to play the effect of bradyseism to avoid the water seal to damage, avoid the water pump to take place the trouble of leaking.

Alternatively, the radial position of the sliding blocks 32 is fixed, for example, the thickness of the sliding blocks 32 in the radial direction is equal to the thickness of the annular accommodating cavity in the radial direction, one of the two adjacent sliding blocks 32 is fixedly connected to the first gear 1, and the other is fixedly connected to the second gear 2, or the thickness of the sliding blocks 32 in the radial direction is equal to the thickness of the annular accommodating cavity in the radial direction and a part of the sliding blocks 32 in the plurality of sliding blocks 32 is fixedly connected to the first gear 1 or the second gear 2, and the other sliding blocks 32 can be freely and slidably connected to the annular accommodating cavity. Preferably, in the present embodiment, one of the two adjacent sliding blocks 32 is fixedly connected to the first gear 1, and the other is fixedly connected to the second gear 2. Further preferably, a plurality of sliders 32 are uniformly arranged in the annular accommodating cavity, so that the stress on the first gear 1 and the second gear 2 is uniform, and the occurrence of the condition that the gears are damaged due to stress concentration is avoided.

Preferably, the shock absorbing structure 31 is made of a spring. Alternatively, in other embodiments, the cushioning structure 31 may be made of other elastic materials.

Optionally, the cushioning structure 31 includes a plurality of spring sets 311, the spring sets 311 are disposed between two adjacent sliders 32, the spring sets 311 include a plurality of springs with gradually increasing diameters, which are sleeved from inside to outside, and two ends of the plurality of springs respectively abut against the two adjacent sliders 32. The mode of setting up a plurality of springs can be with total power dispersion on a plurality of springs, avoid exceeding the elastic limit of single spring for permanent residual deformation appears in the spring. Preferably, in this embodiment, the spring set 311 includes an outer spring 3111 and an inner spring 3112, and the outer spring 3111 is sleeved outside the inner spring 3112, so as to meet the requirement of cushioning and control the cost of the spring within a reasonable range.

Optionally, both ends of the slider 32 are provided with a first limiting portion 321 and a second limiting portion 322, and the outer spring 3111 and the inner spring 3112 are respectively abutted to the first limiting portion 321 and the second limiting portion 322, so that the outer spring 3111 and the inner spring 3112 are prevented from shifting in the compression process, and stable transmission of torque is ensured. Specifically, the first stopper 321 and the second stopper 322 are respectively a first boss having an inner diameter equal to that of the outer spring 3111 and a second boss having an inner diameter equal to that of the inner spring 3112; or the first stopper 321 and the second stopper 322 are respectively a first groove having an outer diameter equal to that of the outer spring 3111 and a second groove having an outer diameter equal to that of the inner spring 3112. Preferably, in this embodiment, the first stopper portion 321 and the second stopper portion 322 are a first boss equal to the inner diameter of the outer spring 3111 and a second boss equal to the inner diameter of the inner spring 3112, respectively.

As shown in fig. 3 and 4, a threaded hole is formed in the slider 32, a fixing hole is formed in the first gear 1 and/or the second gear 2, the gear assembly further includes a fastening assembly 4, and the slider 32 is fixed on the first gear 1 or the second gear 2 by the fastening assembly 4 through the fixing hole and the threaded hole. Preferably, in the present embodiment, the fastening assembly 4 includes a stud 41 and a nut 42, the stud 41 passes through a fixing hole on the first gear 1 or the second gear 2, is screwed to a threaded hole on the slider 32, and is fastened to the stud 41 by the nut 42.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. A gear assembly, comprising:

the gear transmission mechanism comprises a first gear (1) and a second gear (2), wherein the first gear (1) and the second gear (2) are connected between two devices in transmission connection, the first gear (1) and the second gear (2) are coaxially arranged, a first annular groove (11) is formed in the first gear (1), a second annular groove (21) is formed in the second gear (2), the first annular groove (11) and the second annular groove (21) are opposite to form an annular accommodating cavity, and the central axis of the annular accommodating cavity is overlapped with the central axis of the first gear (1);

bradyseism coupling assembling (3), including bradyseism structure (31) and a plurality of slider (32), it is a plurality of slider (32) set up in the annular holds the chamber, bradyseism structure (31) set up in adjacent between slider (32), adjacent two slider (32) can relative motion.

2. The gear assembly according to claim 1, wherein said slider (32) has a thickness in a radial direction equal to that of said annular housing cavity.

3. A gear assembly according to claim 1, wherein two adjacent sliders (32) are fixedly connected one to the first gear wheel (1) and the other to the second gear wheel (2).

4. A gear assembly according to any one of claims 1 to 3, wherein a plurality of said sliding blocks (32) are uniformly arranged in said annular housing cavity.

5. The gear assembly according to claim 1, wherein the shock absorption structure (31) comprises a plurality of spring sets (311), the spring sets (311) are disposed between two adjacent sliding blocks (32), the spring sets (311) comprise a plurality of springs with gradually increasing diameters, which are sleeved from inside to outside, and two ends of the plurality of springs are respectively abutted against two adjacent sliding blocks (32).

6. The gear assembly according to claim 5, wherein the spring set (311) comprises an outer spring (3111) and an inner spring (3112), the outer spring (3111) being sleeved outside the inner spring (3112).

7. The gear assembly according to claim 6, wherein both ends of the slider (32) are provided with a first limiting portion (321) and a second limiting portion (322), and the outer spring (3111) and the inner spring (3112) are respectively abutted on the first limiting portion (321) and the second limiting portion (322).

8. The gear assembly according to claim 7, wherein the first and second limiting parts (321, 322) are respectively a first boss equal to the inner diameter of the outer spring (3111) and a second boss equal to the inner diameter of the inner spring (3112); or the first stopper portion (321) and the second stopper portion (322) are respectively a first groove having an outer diameter equal to that of the outer spring (3111) and a second groove having an outer diameter equal to that of the inner spring (3112).

9. The gear assembly according to claim 2, wherein the sliding block (32) is provided with a threaded hole, the first gear (1) and/or the second gear (2) is provided with a fixing hole, and the gear assembly further comprises a fastening assembly (4), and the fastening assembly (4) fixes the sliding block (32) on the first gear (1) or the second gear (2) through the fixing hole and the threaded hole.

10. A transmission system comprising a gear assembly according to any one of claims 1 to 9.