CN209309168U - A New Type Elastic Coupling of Gear Type - Google Patents

Abstract

The utility model relates to a new tooth type elastic coupling, which comprises a coupling body, the coupling body includes a deformation part in the middle and fixing parts at both ends; the fixing part includes a gear section and a transition section, and the transition section The two ends of the deformation part are respectively symmetrically formed, the transition section is a bellows-shaped structure, the gear section is coaxially formed on both ends of the transition section, the gear section includes a first gear and a second gear; the deformation part includes a deformation body, The middle part of the inner wall of the main body is radially outward and coaxially formed with an annular damping groove, and the side wall of the damping groove of the body coaxially surrounds the outer wall of the driving shaft to form a damping chamber. The utility model has simple structure and reasonable design. The deformation part itself has good structural strength, strong torsion resistance and good recovery elasticity, which effectively ensures that the coupling is not easy to be damaged under complex working conditions such as tension and torsion, and works stably. Reliable and long service life.

Description

A New Type Elastic Coupling of Gear Type

technical field

The utility model belongs to the field of transmission components and relates to a shaft coupling, in particular to a new tooth type elastic coupling.

Background technique

Couplings, also known as couplings, are mechanical parts used to connect two shafts (driving shaft and driven shaft) in different mechanisms to make them rotate together to transmit torque, and play a role in connection.

Flexible couplings with elastic elements can transmit motion and torque; have different degrees of axial, radial and angular compensation performance; also have different degrees of vibration reduction and buffering effects, and improve the working performance of the transmission system, including Various non-metal elastic element flexible couplings and metal elastic element flexible couplings have different structures and large differences, and their functions in the transmission system are also different.

Through the search of patent documents, the following related documents were found:

1. An elastic ring gear coupling (CN206582251U), comprising a front half coupling, an elastic ring gear and a rear half coupling, characterized in that, the front half coupling and the rear half coupling are discs shape and a shaft hole is provided in the center, and the end face of the front half coupling is provided with a plurality of circularly arranged first end face protrusions, so that the front half coupling forms a spline-like disc-like structure, and the second half The end surface of the coupling is provided with the same number, width and height of the second end surface projections as the front half coupling, and the plurality of second end surface projections are evenly arranged on the end surface of the rear half coupling in a circular shape. The shaft joint and the rear half coupling are located opposite and coaxially arranged, the first end face protrusion and the second end face protrusion are close to each other, and the inner ring of the elastic ring gear is provided with a plurality of uniformly arranged internal teeth, so that The elastic ring gear forms a spline structure, the elastic ring gear is set between the front half coupling and the rear half coupling, and the first end face bump and the second end face bump that are close to each other are placed on the adjacent inner teeth between.

2. High anti-vibration coupling (CN105422671A), including left half coupling, right half coupling, and fixing bolts; the left half coupling and right half coupling are connected and fixed by fixing bolts; it is characterized in that: It also includes an anti-vibration pad; the middle part of the left half coupling is provided with a threaded anti-vibration pad placement area; the outside of the anti-vibration pad is provided with external threads, and the anti-vibration pad is screwed on the threaded anti-vibration pad by external threads area.

Through the comparison of technical features, the above-mentioned published patent documents are all different from the technical structure of the utility model, which will not affect the creativity and novelty of the utility model application.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art, and provide a new tooth type elastic coupling with novel structure, good recovery elasticity and good vibration damping effect.

The utility model solves its technical problem and realizes by taking the following technical solutions:

A new type of tooth-type elastic coupling, including a coupling body, the coupling body includes a deformation part in the middle and a fixing part at both ends; the fixing part includes a gear section and a transition section, and the transition sections are symmetrically formed on The two ends of the deformation part, the transition section is a bellows-shaped structure, the gear section is coaxially made at the two ends of the transition section, the gear section includes a first gear and a second gear; the deformation part includes a deformation body, and the middle part of the inner wall of the body An annular damping groove is coaxially formed radially outward, and the side wall of the vibration damping groove of the body coaxially surrounds the outer wall of the drive shaft to form a vibration damping chamber.

Moreover, a reinforcement ring is provided at the peak position of the transition section.

Moreover, the outer ring teeth of the first gear and the second gear of the gear segment are set at sharp angles, and reinforcing columns are arranged at the peak positions of the outer ring teeth

Moreover, the deformation part in the middle and the fixing parts at both ends are integrally formed.

Moreover, the coupling body is made of rubber material.

Moreover, the height of the peaks of the transition section is greater than the height of the valleys.

Advantage and positive effect of the present utility model are:

1. The utility model has a simple structure and a reasonable design. The fixed part is used to connect with the external shaft body, while the deformable part itself has good structural strength and strong torsion resistance, which effectively ensures that the coupling is under tension and torsion. It is not easy to be damaged under complex working conditions, stable and reliable, and has a long service life.

2. The transition section of the utility model is a bellows-shaped structure, and the height of the peak is greater than the height of the trough. The outer circumference requires higher structural strength and ensures that the outer circumference can produce a greater amount of deformation than the inner side, so as to better ensure the overall stable operation of the coupling and prevent damage, so that the wave peak can be more stable than the wave trough. Large deformation, at the same time, the section at the peak is larger than the section at the trough to improve its strength.

3. The utility model is equipped with a reinforcing ring at the peak position of the transition section, which effectively improves the torsion resistance at the outer circumference of the deformation part, and the impact resistance is also significantly strengthened, and the peak position of the coupling at the deformation part is not easy Fracture ensures its long service life.

4. In the utility model, the teeth of the outer ring of the gear segment are made into sharp corners, and a reinforcing column is arranged at the sharp corners, which avoids a large error caused by the wear of the gear teeth due to friction, resulting in poor cushioning performance and occurrence of Problems such as fracture and leakage have greatly improved the torque resistance of the gear teeth on the outer gear sleeve, and the tooth crest position of the teeth on the outer gear sleeve at the fixed position of the coupling is not easy to break, ensuring its long service life.

Description of drawings

Fig. 1 is the sectional three-dimensional structure schematic diagram of the utility model;

Fig. 2 is a schematic diagram of the three-dimensional structure of the utility model.

Detailed ways

The utility model will be further described in detail below in conjunction with the accompanying drawings and through specific embodiments. The following embodiments are only descriptive, not restrictive, and cannot limit the protection scope of the utility model.

A new type of tooth-type elastic coupling, including a coupling body, the coupling body includes a deformation part 7 in the middle and fixing parts at both ends; the fixing part includes a gear section and a transition section 4, and the transition sections are respectively symmetrical Manufactured at both ends of the deformation part, the transition section is a bellows-shaped structure, and the height of the peak is greater than the height of the trough. Since the deformation on the outer circumference of the coupling is greater than that on the inner side when bending or torsion occurs, higher structural strength is required at the outer circumference to ensure that the outer circumference can produce a greater amount of deformation than the inner side , in order to better ensure the overall stable work of the coupling, and it is not easy to be damaged. Therefore, the height of the crest is greater than the height of the trough, so that the crest can produce greater deformation relative to the trough, and at the same time, the section at the peak is larger than the section at the trough to increase its strength;

The gear section is coaxially formed on both ends of the transition section, the gear section includes a first gear 2 and a second gear 10, the inner ring and the outer ring of the first gear and the second gear are all shaped with gear teeth, respectively The driving shaft and the driven shaft cooperate with each other to rotate;

The deformation part includes a deformation body, and the middle part of the inner wall of the body is radially outwardly integrally formed with an annular damping groove 1 coaxially. The vibration groove and the outer wall of the driving shaft form a vibration-damping chamber. During use, a sealing ring or lubricating oil can be arranged in the vibration-damping chamber, and the vibration-damping chamber effectively relieves vibration when the shaft rotates.

In the specific implementation of the present utility model, a reinforcement ring 6 is provided at the peak position of the transition section, and the reinforcement ring is preferably arranged inside the wave peak. Through the provided reinforcing ring, the torsion resistance at the outer circumference of the deformation part is effectively improved, and the impact resistance is also significantly enhanced. The coupling is not easy to break at the peak position of the deformation part, ensuring its long service life.

The transition section and the deformation part work together to effectively improve the torsion resistance of the coupling. The transition section reduces the burden on the deformation part when it is stressed, which is equivalent to sharing a part of the torsion to ensure that the deformation part is balanced. Not easy to damage.

In the specific implementation of the utility model, in order to prevent the teeth on the outer gear bushing of the gear part from being sharpened and cause the cushioning performance to weaken, this solution directly sets the outer ring gear teeth to a sharp angle 3, and at the same time, in order to prevent damage to the teeth All are shaved, and a reinforcing column 5 is provided at the peak position of the teeth of the external gear sleeve. The reinforcing posts are preferably arranged inside the peaks. Through the set reinforcing ring, the anti-torque ability of the teeth on the outer gear sleeve is effectively improved, and the impact resistance is also significantly strengthened. The tooth crest position of the teeth on the outer gear sleeve of the coupling Not easy to break, ensuring its long service life.

In the specific implementation of the utility model, the reinforcing ring and the reinforcing column are metal rings made of spring steel, metal stubs or highly elastic non-metallic rings and non-metallic stubs; since the reinforcement itself also has a certain The deformation capacity of the coupling will not affect the deformation amount of the deformation part when it is under force, and it complements the deformation part to greatly improve the torsion resistance of the coupling.

In the specific implementation of the utility model, the deformation part in the middle and the fixing parts at both ends are integrally formed, with high structural strength and good stability. Due to the integrated structure design, there will be no stress concentration at the joint, and the use Longer life.

In the specific implementation of the utility model, the above-mentioned shaft coupling body is made of rubber material, and the shaft coupling body itself has a certain degree of flexibility. When subjected to torsion, it has deformation ability and is not easy to be damaged.

In the specific implementation of the utility model, an annular spring groove 9 is made on the outer wall of the deformation part, and a spring ring 8 is embedded in the groove to prevent the shock absorbing cavity from breaking due to excessive deformation.

The utility model is simple in structure and reasonable in design. The fixed parts at both ends of the deformation part are used to cooperate with the external shaft body, and the deformation part itself has good structural strength and strong torsion resistance, which effectively ensures that the coupling is under tension. It is not easy to be damaged under complex working conditions such as torsion, stable and reliable, and has a long service life.

Although the embodiments and accompanying drawings of the utility model are disclosed for the purpose of illustration, those skilled in the art can understand that various replacements, changes and modifications can be made without departing from the spirit and scope of the utility model and the appended claims. It is possible, therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims (6)

1. a kind of tooth-like New Model of Flexible Coupling, it is characterised in that: including shaft coupling ontology, shaft coupling ontology includes intermediate shape The fixed part in change portion and both ends；The fixed part includes gear segment and changeover portion, and the changeover portion is respectively symmetrically formed on deformations Both ends, changeover portion is bellows-like structure, and the gear segment is coaxially formed on the both ends of changeover portion, and gear segment includes first gear And second gear；The deformations include deformation ontology, and radially outward one is coaxially formed with a ring to the inner wall medium position of ontology The Silencing groove of shape, the side wall of the Silencing groove of the ontology coaxially encircle one vibration damping chamber of formation on the outer wall of driving shaft.

2. tooth-like New Model of Flexible Coupling according to claim 1, it is characterised in that: the crest location of the changeover portion is also Equipped with reinforcing ring.

3. tooth-like New Model of Flexible Coupling according to claim 1, it is characterised in that: the first gear of gear segment, second The outer ring gear teeth setting of gear is pointed at, and is equipped with reinforcing prop in the peak location of the gear teeth.

4. tooth-like New Model of Flexible Coupling according to claim 1, it is characterised in that: the deformations of the centre and both ends Fixed part be an integral molding structure.

5. tooth-like New Model of Flexible Coupling according to claim 1, it is characterised in that: the shaft coupling ontology uses rubber Material is made.

6. tooth-like New Model of Flexible Coupling according to claim 1, it is characterised in that: the crest height of the changeover portion is big In trough height.