CN215762885U

CN215762885U - Test coupling of asynchronous variable frequency motor of composite drilling machine

Info

Publication number: CN215762885U
Application number: CN202121937158.3U
Authority: CN
Inventors: 孙雪; 李源; 刘佳庆
Original assignee: DALIAN YULIN ELECTRIC MOTOR CO LTD
Current assignee: DALIAN YULIN ELECTRIC MOTOR CO LTD
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2022-02-08
Anticipated expiration: 2031-08-18

Abstract

The utility model discloses a test coupling of an asynchronous variable frequency motor of a composite drilling machine, which comprises a shaft body, wherein the periphery of the shaft body is sequentially provided with a first dustproof plate, a lower half coupling, an upper first half coupling, a first groove and a second dustproof plate from right to left, the front part and the rear part of the bottom end of the lower half coupling are both provided with holes, the front part and the rear part of the bottom end of the upper second half coupling are both provided with threaded holes, the middle part of the bottom end of the upper first half coupling is fixedly connected with a limiting block, and splines are uniformly distributed at the top end of the upper first half coupling. According to the utility model, the first dustproof plate and the second dustproof plate on the two sides are firstly removed, the upper second half-coupling can be easily removed along the direction of the shaft body, then the lower half-coupling can be removed along the radial direction, and finally the radial force is applied to remove the upper first half-coupling along the radial direction, so that the novel shaft coupling is very convenient to use and is worth popularizing.

Description

Test coupling of asynchronous variable frequency motor of composite drilling machine

Technical Field

The utility model relates to the technical field of motor tests, in particular to a test coupling of an asynchronous variable frequency motor of a composite drilling machine.

Background

The coupling is also called coupling, is used for firmly connecting a driving shaft and a driven shaft in different mechanisms to rotate together, the mechanical part for transmitting motion and torque is sometimes used for connecting a shaft and other parts, is usually composed of two halves which are respectively connected by keys or tight fit and fastened at the two shaft ends and then connected in a certain mode, the shaft coupler can compensate the offset between the two shafts due to inaccurate manufacture and installation, deformation or thermal expansion in work and the like, and buffering impact and vibration absorption, most of common couplers are standardized or normalized, generally, only the type of the coupler needs to be correctly selected, the model and the size of the coupler need to be determined, the vulnerable weak link of the coupler can be checked and calculated if necessary, and the centrifugal force of the outer edge of the coupler and the deformation of an elastic element need to be checked and calculated when the rotating speed is high, so that balance check and the like are carried out.

Chinese patent document CN205715325U discloses a coupler, and for this patent, there is a defect that the shaft body can be damaged, the asynchronous variable frequency motor of the compound drilling machine must be strictly tested before leaving factory, each item of data can leave factory only when meeting the requirement, and the temperature rise type test needs to be run under the rated working condition for a long time under full load, two motors are generally adopted to test the support, this needs the coupler to connect two motors, the tested coupler can be generally installed by a hot jacket, and is taken off after the test is completed, this method often causes the damage of the shaft body in the process of dismantling the tested coupler, the shaft body needs to be repaired subsequently, and it is very inconvenient to use.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art, and provides a test coupling of an asynchronous variable frequency motor of a composite drilling machine.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a compound experimental shaft coupling of rig asynchronous variable frequency motor, includes the axis body, the periphery of axis body has set gradually first dust guard, lower half-coupling, the first half-coupling in upper portion, upper portion second half-coupling, first fluting and second dust guard from the right side to a left side, the front portion and the rear portion of lower half-coupling bottom all are provided with the trompil, the front portion and the rear portion of upper portion second half-coupling bottom all are provided with the screw hole, the bottom middle part fixedly connected with stopper of the first half-coupling in upper portion, the top evenly distributed of the first half-coupling in upper portion has the spline, the bottom evenly distributed of the second half-coupling in upper portion has the second fluting.

As a further description of the above technical solution:

the limiting block is arranged inside the first slot.

As a further description of the above technical solution:

the inside of trompil all sliding connection has fastening bolt, the equal threaded connection in inside of screw hole has fastening bolt.

As a further description of the above technical solution:

the splines are all arranged inside the second groove.

As a further description of the above technical solution:

the open hole and the threaded hole are on the same vertical line.

As a further description of the above technical solution:

the lower half-coupling, the upper first half-coupling, the upper second half-coupling, the limiting block and the spline are all made of forty-five steel.

As a further description of the above technical solution:

and the left ends of the lower half coupling and the upper second half coupling are fixedly connected with a second dust guard through fixing screws.

As a further description of the above technical solution:

the right ends of the lower half coupling and the upper second half coupling are fixedly connected with a first dust guard through fixing screws.

The utility model has the following beneficial effects:

according to the utility model, after the test is finished, the first dustproof plate and the second dustproof plate on two sides are firstly removed, then the fastening bolt between the upper first half-coupling and the upper second half-coupling is removed, so that the upper second half-coupling can be easily removed along the shaft body direction, then the lower half-coupling can be removed along the radial direction, and finally the radial force is applied to remove the upper first half-coupling along the radial direction, so that the damage to the shaft body in the conventional process of removing the coupling along the shaft body direction is completely avoided, the use is very convenient, and the device is worth of being widely popularized.

Drawings

FIG. 1 is a front view of a test coupling of an asynchronous variable frequency motor of a compound drilling machine according to the present invention;

FIG. 2 is a cross-sectional view of a test coupling of an asynchronous variable frequency motor of a compound drilling machine according to the present invention;

fig. 3 is an enlarged view of a test coupling of the asynchronous variable frequency motor of the composite drilling machine provided by the utility model at a position A.

Illustration of the drawings:

1. a shaft body; 2. a lower half coupling; 3. opening a hole; 4. an upper first half coupling; 5. an upper second coupling half; 6. a threaded hole; 7. fastening a bolt; 8. a first slot; 9. a limiting block; 10. a second slot; 11. a spline; 12. a first dust-proof plate; 13. a second dust-proof plate; 14. and fixing the screw.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, one embodiment of the present invention is provided: a test coupling of an asynchronous variable frequency motor of a composite drilling machine comprises a shaft body 1, wherein a first dust guard 12, a lower half coupling 2, an upper first half coupling 4, an upper second half coupling 5, a first groove 8 and a second dust guard 13 are sequentially arranged on the periphery of the shaft body 1 from right to left, the lower half coupling 2 needs to transmit torque through friction force between the lower half coupling and the shaft body 1 and torque force between the upper first half coupling 4 and the upper second half coupling 5, open holes 3 are respectively formed in the front part and the rear part of the bottom end of the lower half coupling 2, threaded holes 6 are respectively formed in the front part and the rear part of the bottom end of the upper second half coupling 5, a limiting block 9 is fixedly connected to the middle part of the bottom end of the upper first half coupling 4, the upper first half coupling 4 can be installed on the shaft body 1 through the first groove 8 and the limiting block 9, and splines 11 are uniformly distributed on the top end of the upper first half coupling 4, the upper first half coupling 4 and the upper second half coupling 5 are connected through a spline 11, torque can be directly transmitted, and second grooves 10 are uniformly distributed at the bottom end of the upper second half coupling 5.

The limiting block 9 is arranged inside the first open groove 8, so that the shaft body 1 can drive the shaft coupler to rotate, the inside of the open hole 3 is connected with a fastening bolt 7 in a sliding manner, the inside of the threaded hole 6 is connected with the fastening bolt 7 in a threaded manner, the upper second half-coupling 5 and the lower second half-coupling 2 are connected together through the fastening bolt 7, the spline 11 is arranged inside the second open groove 10, the open hole 3 and the threaded hole 6 are on the same vertical line, so that the connection is more stable, the lower half-coupling 2, the upper first half-coupling 4, the upper second half-coupling 5, the limiting block 9 and the spline 11 are made of forty-five steel, the steel has better deformation resistance, the left ends of the lower half-coupling 2 and the upper second half-coupling 5 are fixedly connected with a second dustproof plate 13 through a fixing screw 14, and the right ends of the lower half-coupling 2 and the upper second half-coupling 5 are fixedly connected with a first dustproof plate 12 through a fixing screw 14, the first dust-proof plate 12 and the second dust-proof plate 13 can prevent the inside of the apparatus from entering dust.

The working principle is as follows: the upper first half coupling 4 and the shaft body 1 are installed through a first open slot 8 and a limiting block 9, the upper second half coupling 5 and the lower second half coupling 2 are connected together through a fastening bolt 7 and then are sleeved on the periphery of the shaft body 1 as a whole, the fastening bolt 7 is fastened, the upper first half coupling 4 and the upper second half coupling 5 are connected through a spline 11, torque can be directly transmitted, after a torque test is completed by the lower half coupling 2 needing to transmit torque through friction force between the lower first half coupling and the shaft body 1 and torque force between the upper first half coupling 4 and the upper second half coupling 5, the first dustproof plates 12 and the second dustproof plates 13 on two sides are firstly dismounted, then the fastening bolt 7 between the upper first half coupling 4 and the upper second half coupling 5 is dismounted, and then the upper second half coupling 5 can be easily dismounted along the direction of the shaft body 1, and then the lower half coupling 2 can be removed along the radial direction, and finally, the first half coupling 4 at the upper part is removed along the radial direction by applying radial force, so that the damage to the shaft body 1 caused by the conventional process of removing the coupling along the direction of the shaft body 1 is completely avoided, the use is very convenient, and the clutch is worth being widely popularized.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a compound experimental shaft coupling of rig asynchronous variable frequency motor, includes axis body (1), its characterized in that: the periphery of axis body (1) has set gradually first dust guard (12), lower half-coupling (2), upper portion first half-coupling (4), upper portion second half-coupling (5), first fluting (8) and second dust guard (13) from right side to left side, the front portion and the rear portion of lower half-coupling (2) bottom all are provided with trompil (3), the front portion and the rear portion of upper portion second half-coupling (5) bottom all are provided with screw hole (6), the bottom middle part fixedly connected with stopper (9) of upper portion first half-coupling (4), the top evenly distributed of upper portion first half-coupling (4) has spline (11), the bottom evenly distributed of upper portion second half-coupling (5) has second fluting (10).

2. The test coupling of the asynchronous variable frequency motor of the compound drilling machine as claimed in claim 1, wherein: the limiting block (9) is arranged inside the first open groove (8).

3. The test coupling of the asynchronous variable frequency motor of the compound drilling machine as claimed in claim 1, wherein: the inside of trompil (3) all has fastening bolt (7) sliding connection, the inside of screw hole (6) all has fastening bolt (7) threaded connection.

4. The test coupling of the asynchronous variable frequency motor of the compound drilling machine as claimed in claim 1, wherein: the splines (11) are all arranged in the second slot (10).

5. The test coupling of the asynchronous variable frequency motor of the compound drilling machine as claimed in claim 1, wherein: the open hole (3) and the threaded hole (6) are on the same vertical line.

6. The test coupling of the asynchronous variable frequency motor of the compound drilling machine as claimed in claim 1, wherein: the lower half coupling (2), the upper first half coupling (4), the upper second half coupling (5), the limiting block (9) and the spline (11) are all made of forty-five steel.

7. The test coupling of the asynchronous variable frequency motor of the compound drilling machine as claimed in claim 1, wherein: the left ends of the lower half coupling (2) and the upper second half coupling (5) are fixedly connected with a second dust guard (13) through fixing screws (14).

8. The test coupling of the asynchronous variable frequency motor of the compound drilling machine as claimed in claim 1, wherein: the right ends of the lower half coupling (2) and the upper second half coupling (5) are fixedly connected with a first dust guard (12) through fixing screws (14).