CN219221083U - Novel coupler capable of being replaced quickly and realizing angular compensation - Google Patents
Novel coupler capable of being replaced quickly and realizing angular compensation Download PDFInfo
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- CN219221083U CN219221083U CN202223261569.2U CN202223261569U CN219221083U CN 219221083 U CN219221083 U CN 219221083U CN 202223261569 U CN202223261569 U CN 202223261569U CN 219221083 U CN219221083 U CN 219221083U
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Abstract
The utility model mainly relates to a coupling used for connecting a motor with a speed reducer, a motor with a hydraulic pump and a hydraulic motor with a load element, in particular to a novel coupling which can be quickly replaced and can realize angular compensation.
Description
Technical Field
The utility model is mainly used for the scenes with explosion-proof requirements on heavy-load machines such as coal mines, and mainly relates to a coupler used for connecting a motor with a speed reducer, a motor with a hydraulic pump and a hydraulic motor with a load element, in particular to a novel coupler which can be quickly replaced and can realize angular compensation.
Background
The existing coal machine motor and the speed reducer, the motor and the hydraulic pump, and the hydraulic motor and the load element have the characteristics of small space and high torque, and the common coupling is difficult to use, so that the common coupling is connected by using a spline sleeve at present. The spline housing is integrated into one piece, and output shaft interference fit such as one end hole and motor, one end be internal spline and load clearance fit, and this just has 4 problems:
firstly, the problem of difficult disassembly of the spline housing is solved, because of the conditions of underground moisture and high working temperature of original paper, the spline housing is often rusted and adhered with an output shaft such as a motor when being damaged, the spline housing cannot be quickly replaced by a mechanical and physical method, the output shaft such as the motor is damaged by using gas cutting to break and disassembly, and the underground explosion-proof requirement does not allow cutting, so that the original paper such as the motor is often required to be transported to the ground for disassembly, thus very consuming manpower and material resources and prolonging the production stopping time;
secondly, the problem of durability of the tooth surface of the spline housing is that the internal spline teeth of the uniform steel piece, which is generally 35CrMo or 42CrMo, cannot be well subjected to heat treatment, and the defects of low hardness of the tooth surface, uneven hardness of the tooth surface and rapid abrasion often exist, so that the replacement frequency of the spline housing is objectively accelerated, and the spline housing is a vulnerable piece which is difficult to replace.
Thirdly, the problem of poor economy of the spline housing is that the spline housing is an integrated part, the only scrapped basis is spline teeth, and the spline teeth can only be replaced once worn to a certain extent, because small spline parts cause integral replacement, and the economy is poor;
fourthly, the spline housing is an integrated part, and does not have any angular compensation and applicability, and because of unavoidable machining errors and coaxiality errors caused by ageing of components, the service life of the spline housing is often only 6-14 months, and even the joint damage of a motor and a load element can be caused.
Therefore, a coupling member with simple structure, safety, reliability, quick replacement, strong bearing capacity, good economy and angular compensation is urgently needed.
Disclosure of Invention
The utility model aims to provide a novel coupler which can be quickly replaced and can realize angular compensation so as to overcome the technical defects.
In order to solve the technical problems, the utility model provides a novel coupler capable of being replaced quickly and realizing angular compensation, which comprises a base, a quick-change inner core, a protecting cover and a retainer ring, wherein the base is hollow and stepped and columnar and comprises an inner hole section with smaller inner diameter and used for connecting a driving original, and also comprises a spline section with larger inner diameter and used for installing the quick-change inner core, the inner part of the inner hole section is provided with a unthreaded hole with a flat key groove, and the inner part of the spline section is provided with an inner spline;
the quick-change inner core is an annular cylinder, an inner spline for connecting a driving load is arranged in the quick-change inner core, and an outer spline connected with a base is arranged outside the quick-change inner core;
the quick-change inner core is arranged in the spline section of the base, and the protecting cover and the retaining ring are sequentially covered at the end part of the spline section of the base to form the limit of the quick-change inner core.
The external spline of the quick-change inner core is provided with a drum tooth-shaped appearance structure, the quick-change inner core is mounted in a matched mode through the drum tooth-shaped external spline and the internal spline of the base, and the quick-change inner core can form an angle alpha swing angle with the base by means of the drum tooth structure.
And a seal is arranged between the protecting cover and the quick-change inner core.
The quick-change inner core material is made of high-grade nitriding steel material and is formed through forging processing and integral nitriding heat treatment.
The internal spline strength of the spline section of the base is designed to be more than 6 times of the internal spline strength of the quick-change inner core.
The spline section of the base is provided with an oil filling hole, and an oil filling cup is arranged in the oil filling hole; bolt holes are formed in the inner hole sections of the base and correspond to the flat key grooves, and set screws are installed in the bolt holes.
The beneficial effects of the utility model are as follows:
1. the quick replacement of the loss component is realized, a large amount of manpower and material resources are saved, and the quick production is ensured;
2. the service life is prolonged, the service time of the quick-change inner core can be prolonged by 1-2 times compared with that of the original design, the maintenance time occupation ratio is greatly reduced, and the effective production time is prolonged;
3. the economical efficiency is improved, the original spline housing needs to be replaced integrally, and the existing base is designed to be 5 years without replacing the structure, so that the economical efficiency is greatly improved;
4. the coupler has the swing compensation angle alpha, so that the machining error and the non-concentricity error caused by ageing of components can be effectively compensated, and the application range of the coupler is greatly enlarged;
5. the structure is compact, the length dimension is short, the device can be used in space shortage and limited space, and the device comprises only 7 parts including all accessories, and has very simple structure and installation.
In summary, the present utility model can effectively solve the drawbacks and disadvantages of connecting spline housing for connecting enterprises and mining machinery, and in order to make the above-mentioned matters of the present utility model more obvious and understandable, the following specifically describes preferred embodiments, and the detailed description is given below with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present utility model.
Fig. 2 is a schematic cross-sectional view of an assembled structure of the present utility model.
Fig. 3 is a schematic structural view of the base.
Reference numerals illustrate: 1. a retainer ring; 2. a seal ring; 3. a protective cover; 4. quick-changing the inner core; 5. a base; 6. an oil filling cup; 7. a set screw; 5-1, an inner hole section; 5-2, spline section.
Detailed Description
Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present specification, by describing the embodiments of the present utility model with specific examples.
The exemplary embodiments of the present utility model will now be described with reference to the accompanying drawings, however, the present utility model may be embodied in many different forms and is not limited to the examples described herein, which are provided to fully and completely disclose the present utility model and fully convey the scope of the utility model to those skilled in the art. The terminology used in the exemplary embodiments illustrated in the accompanying drawings is not intended to be limiting of the utility model. In the drawings, like elements/components are referred to by like reference numerals.
Unless otherwise indicated, terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art. In addition, it will be understood that terms defined in commonly used dictionaries should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.
Example 1:
the first embodiment of the utility model relates to a novel coupler capable of being replaced quickly and realizing angular compensation, which comprises a base 5, a quick-change inner core 4, a protecting cover 3 and a retainer ring 1, wherein the aim of achieving the quick-change is achieved by the embodiment; the quick-change inner core 4 is an annular cylinder, an inner spline for connecting a driving load is arranged inside the quick-change inner core, and an outer spline for connecting a base 5 is arranged outside the quick-change inner core; the quick-change inner core 4 is arranged in the spline section 5-2 of the base 5, and the protecting cover 3 and the retainer ring 1 are sequentially covered at the end part of the spline section 5-2 of the base 5 to form the limit of the quick-change inner core 4.
The inner hole section 5-1 of the base 5 is connected with a shaft hub of a driving original piece such as a motor, the spline section 5-2 is in spline connection with an external spline of the quick-change inner core 4, and the internal spline of the quick-change inner core 4 is connected with an external load original piece to finish the action of transmitting torque.
Example 2:
the embodiment is further improved on the basis of embodiment 1, and the main purpose of the embodiment is to realize the function of angular compensation of the coupler, and in order to realize the function, the external spline of the quick-change inner core 4 in the embodiment has a drum tooth-shaped appearance structure, the quick-change inner core 4 is mounted through the cooperation of the drum tooth-shaped external spline and the internal spline of the base 5, and a sealing ring 2 is arranged between the protecting cover 3 and the quick-change inner core 4 in a rotating manner.
With reference to fig. 2, the drum tooth-shaped external spline structure of the quick-change inner core 4 enables the quick-change inner core 4 to have angular deflection capability when being connected with the base 5, and has a controllable swing compensation angle alpha in a space formed by the base 5, the protecting cover 3 and the retainer ring 1, wherein the magnitude of the swing compensation angle alpha of the quick-change inner core 4 is controlled by the protecting cover 3, different swing compensation angles alpha can be obtained by changing different protecting covers 3 and sealing rings 2, and the swing compensation angle alpha is generally set to be 0-3 degrees through experience accumulation. The swing compensation angle alpha can effectively compensate for the machining error and the non-concentricity error caused by the aging of components, avoid the problem caused by the concentricity error and greatly strengthen the application range of the coupler.
Example 3:
based on the first two embodiments, the details of the embodiment are further improved, and in order to improve the strength of the quick-change component, in the embodiment, the quick-change inner core 4 is made of an advanced nitriding steel material and is formed through forging processing and integral nitriding heat treatment. The quick-change inner core 4 is made of high-grade nitriding steel, has a compact structure, can effectively control the manufacturing cost and is implemented by a heat treatment process. The material of the quick-change inner core 4 is changed from 42CrMo to 38CrMoAl, and through forging processing and integral nitriding heat treatment, the surface hardness is uniform and can reach more than 800HV, and the core toughness is kept while the surface hardness is extremely high. The conditions of low hardness, uneven hardness, rapid wear and uneven wear of the tooth surface of the traditional integral spline housing are avoided, and the service life of the traditional integral spline housing can be prolonged by more than 1-2 times compared with the original design service life.
In the embodiment, the internal spline strength of the spline section 5-2 of the base 5 is designed to be more than 6 times of the internal spline strength of the quick-change inner core 4, and the theoretical life can reach more than 60 months through finite element analysis and working condition simulation design, so that the quick-change inner core is not replaced for more than 5 years.
In further detail, as shown in fig. 1 and 3, an oil filling hole is formed in the spline section 5-2 of the base 5, and an oil filling cup 6 is arranged in the oil filling hole; bolt holes are formed in the positions, corresponding to the flat key grooves, of the inner hole sections 5-1 of the base 5, set screws 7 are installed in the bolt holes, necessary lubrication and sealing conditions are provided by the oil injection cup 6 and the sealing ring 2, and double mechanical limiting safety guarantee except interference shaft-hub connection is provided by the set screws 7.
The protecting cover 3, the sealing ring 2 and the oil filling cup 6 can provide good lubrication and sealing conditions for the base 5, the quick-change inner core 4 and the external spline of the load original, and keep good lubrication of the base 5, the quick-change inner core 4 and the spline tooth part of the load original, so that the service life of the quick-change inner core is prolonged. The oil cavity that protecting cover 3, sealing washer 2, oiling cup 6, quick change inner core 4, base 5 formed can provide grease for the output shaft of driving original paper such as motor, prevents that the output shaft from receiving the corrosion and the adhesion that temperature and water electrochemical effect produced, has further reduced the later stage dismouting degree of difficulty.
In order to realize quick assembly disassembly, this embodiment can also be provided with on base 5 along its axial direction and draw the lifting hole, draw the lifting hole and arrange along the axial direction of base 5, in order to guarantee sealedly, under the ordinary state, draw the lifting hole and can block up with stopper or other stifled spare, only open in the dismouting, can make things convenient for the dismantlement and the installation of shaft coupling through drawing the lifting hole, realize quick change inner core 4 and the installation and the separation of base 5 fast.
The structure concrete installation operation method finally realized by the utility model comprises the following steps:
1. preparing a driving unit such as a motor, a motor and other power sources, cleaning the surface of an output shaft and installing a flat key in place.
2. Cleaning the surfaces of the components, mounting the sealing ring 2 on the protecting cover 3 and mounting the oil cup on the base 5.
3. The base 5 is heated (induction heated or oil bath heated) and then mounted on the output shaft of the drive unit, and the flat key is locked using the set screw 7.
4. And a proper amount of lubricating grease is smeared in the inner cavity of the base 5, and the quick-change inner core 4, the protecting cover 3 and the retainer ring 1 are sequentially arranged on the base 5.
5. The external spline of the load unit is in butt joint with the internal spline of the quick-change inner core 4, and a proper amount of lubricating oil is injected through the oil injection cup 6.
So far, the whole structure is installed, when the whole structure needs to be replaced, the protecting cover 3 and the retainer ring 1 are only required to be detached, the novel quick-change inner core 4 and the novel sealing ring 2 are replaced, and then the protecting cover 3 and the retainer ring 1 are installed.
In summary, the novel coupler capable of being replaced quickly and realizing angular compensation has a simple structure, and comprises only 7 parts including all accessories; the installation is convenient, and only one check ring 1 and one protecting cover 3 need to be installed and disassembled at ordinary times; the structure is reliable, the connecting part is the simplest mechanical limit, and no extra debugging is needed; the quick-change inner core 4 with the swing compensation angle alpha can effectively compensate the machining error and concentricity error caused by ageing of components; the service life is long, the service life of the quick-change inner core 4 can be prolonged by 1-2 times by using the advanced nitriding steel, and the bearing capacity of the quick-change inner core 4 is more than 6 times by finite element analysis and design of the tooth part of the base 5.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples of carrying out the utility model and that various changes in form and details may be made therein without departing from the spirit and scope of the utility model.
Claims (6)
1. But quick replacement and can realize novel shaft coupling of angular compensation, its characterized in that: the quick-change type automobile seat comprises a base (5), a quick-change inner core (4), a protecting cover (3) and a retainer ring (1), wherein the base (5) is hollow and stepped and columnar, comprises an inner hole section (5-1) with a smaller inner diameter and used for being connected with a driving original, and further comprises a spline section (5-2) with a larger inner diameter and used for being installed with the quick-change inner core (4), the inner part of the inner hole section (5-1) is a smooth hole with a flat key groove, and an inner spline is arranged in the spline section (5-2);
the quick-change inner core (4) is an annular cylinder, an inner spline for connecting a driving load is arranged in the quick-change inner core, and an outer spline for connecting a base (5) is arranged outside the quick-change inner core;
the quick-change inner core (4) is arranged in the spline section (5-2) of the base (5), and the protecting cover (3) and the retainer ring (1) are sequentially covered at the end part of the spline section (5-2) of the base (5) to form the limit of the quick-change inner core (4).
2. A new coupling which is quickly replaceable and which allows angular compensation according to claim 1, characterized in that: the external spline of the quick-change inner core (4) is provided with a drum tooth-shaped appearance structure, the quick-change inner core (4) is mounted in a matched mode through the drum tooth-shaped external spline and the internal spline of the base (5), and the quick-change inner core (4) forms an angle alpha swing angle with the base (5) through the drum tooth structure.
3. A new coupling which can be quickly replaced and which can be angularly compensated, according to claim 1 or 2, characterized in that: a sealing ring (2) is arranged between the protecting cover (3) and the quick-change inner core (4).
4. A new coupling which is quickly replaceable and which allows angular compensation as claimed in claim 3, characterized in that: the quick-change inner core (4) is made of high-grade nitriding steel material and is formed by forging and integral nitriding heat treatment.
5. The novel coupling capable of being replaced quickly and realizing angular compensation according to claim 4, wherein: the internal spline strength of the spline section (5-2) of the base (5) is designed to be more than 6 times of the internal spline strength of the quick-change inner core (4).
6. A new coupling which is quickly replaceable and which allows angular compensation according to claim 5, characterized in that: an oil filling hole is formed in the spline section (5-2) of the base (5), and an oil filling cup (6) is arranged in the oil filling hole; bolt holes are formed in the inner hole sections (5-1) of the base (5) and correspond to the flat key grooves, and set screws (7) are arranged in the bolt holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223261569.2U CN219221083U (en) | 2022-12-06 | 2022-12-06 | Novel coupler capable of being replaced quickly and realizing angular compensation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223261569.2U CN219221083U (en) | 2022-12-06 | 2022-12-06 | Novel coupler capable of being replaced quickly and realizing angular compensation |
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| Publication Number | Publication Date |
|---|---|
| CN219221083U true CN219221083U (en) | 2023-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202223261569.2U Active CN219221083U (en) | 2022-12-06 | 2022-12-06 | Novel coupler capable of being replaced quickly and realizing angular compensation |
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| CN (1) | CN219221083U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117662588A (en) * | 2024-01-31 | 2024-03-08 | 唯实重工股份有限公司 | Shoveling structure and heading machine |
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2022
- 2022-12-06 CN CN202223261569.2U patent/CN219221083U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117662588A (en) * | 2024-01-31 | 2024-03-08 | 唯实重工股份有限公司 | Shoveling structure and heading machine |
| CN117662588B (en) * | 2024-01-31 | 2024-04-12 | 唯实重工股份有限公司 | Shoveling structure and heading machine |
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