CN215498602U

CN215498602U - Motor shaft for water pump

Info

Publication number: CN215498602U
Application number: CN202121694255.4U
Authority: CN
Inventors: 郑珊; 郑永定
Original assignee: Anhui Yongde Machinery Co ltd
Current assignee: Anhui Yongde Machinery Co ltd
Priority date: 2021-07-26
Filing date: 2021-07-26
Publication date: 2022-01-11
Anticipated expiration: 2031-07-26

Abstract

The utility model provides a motor shaft for a water pump, which comprises an inner connecting part, an outer connecting part and a mounting part, wherein two ends of the mounting part are respectively detachably connected with the outer connecting part and the inner connecting part; the inner connecting part comprises a positioning shaft, a transmission shaft is arranged on the positioning shaft, a transmission surface is arranged on the side surface of the transmission shaft, a first connecting shaft is arranged at one end of the transmission shaft, which is far away from the positioning shaft, and an external threaded rod is arranged on the first connecting shaft; the external connecting part comprises a second connecting shaft, a connecting piece is arranged at the tail end of the second connecting shaft, and an external threaded rod is arranged at one end, far away from the connecting piece, of the second connecting shaft; the inner connecting part and the outer connecting part are detachably connected with the mounting part, and when a certain part is damaged, the mounting part is detached, so that the mounting part can be maintained and replaced.

Description

Motor shaft for water pump

Technical Field

The utility model belongs to the technical field of motor shafts, and particularly relates to a motor shaft for a water pump.

Background

The motor shaft is an important part in the motor and is used as a link for electromechanical energy conversion between the motor and equipment, supporting rotating parts, transmitting torque and determining the relative position of the rotating parts to the stator. Therefore, the motor shaft must have a reliable strength and rigidity, ensuring the achievement of the preset design function.

The application of motor shaft is comparatively extensive, and in the water pump was used to the motor shaft, because the inside water pump shaft that is equipped with of water pump adopts motor shaft base and motor shaft an organic whole to set up, so after its long-time operation, the motor shaft easily appears the crackle and is not convenient for local change, like the novel water pump motor shaft that patent number 202021227598.5 disclosed, including motor shaft base, motor shaft, first connection axle head and second connection axle head and connecting piece, the motor shaft spliced eye has been seted up in the left side of motor shaft base, the left side of motor shaft is equipped with first connection axle head, the right side of motor shaft is equipped with the second and connects the axle head, the right side of second connection axle head is equipped with the connecting piece, and this patent adopts split type structure to carry out local change to the motor shaft, nevertheless adopts the rivet pressing mode to be connected between motor shaft and the motor shaft base, though can dismantle, but the dismouting is inconvenient.

SUMMERY OF THE UTILITY MODEL

Purpose of the utility model

In view of the above technical problems, the present invention provides a motor shaft for a water pump, which is used to solve the technical problems mentioned in the background art.

Technical scheme

In order to achieve the purpose, the technical scheme provided by the utility model is as follows: a motor shaft for a water pump comprises an inner connecting part, an outer connecting part and a mounting part, wherein two ends of the mounting part are respectively detachably connected with the outer connecting part and the inner connecting part;

the inner connecting part comprises a positioning shaft, a transmission shaft is arranged on the positioning shaft, a transmission surface is arranged on the side surface of the transmission shaft, a first connecting shaft is arranged at one end of the transmission shaft, which is far away from the positioning shaft, and an external threaded rod is arranged on the first connecting shaft;

the external connecting part comprises a second connecting shaft, a connecting piece is arranged at the tail end of the second connecting shaft, and an external threaded rod is arranged at one end, far away from the connecting piece, of the second connecting shaft;

the mounting part is internally provided with an internal thread matched with the external thread rod.

The further improvement lies in that: and the first connecting shaft and the second connecting shaft are both provided with limiting convex rings, and the diameters of the limiting convex rings are not larger than those of the mounting parts.

The further improvement lies in that: and the middle parts of the outer connecting part and the inner connecting part are provided with positioning grooves.

The further improvement lies in that: and the front end of the transmission shaft is provided with a guide surface on the positioning shaft.

The further improvement lies in that: the connecting piece is provided with a round surface and an arc surface which are oppositely arranged, and the outer surface of the arc surface is provided with a threaded end.

Advantageous effects

Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects:

the utility model has simple structure and convenient operation, and when a certain part is damaged, the inner connecting part and the outer connecting part are detachably connected with the mounting part, so that the part can be maintained and replaced by detaching the part.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural diagram of the present invention in a disassembled state shown in FIG. 1.

Reference numerals

1-an inner connecting part; 101-positioning the shaft; 102-a drive shaft; 102 a-a driving surface; 103-a first connecting shaft; 104-a guide surface; 2-an external connection; 201-a second connecting shaft; 202-a connector; 3-mounting parts; 4-external screw thread rod; 5-internal thread; 6-a limit convex ring; 7-positioning groove.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", "coaxial", "bottom", "one end", "top", "other end", "one side", "front", "both ends", "both sides", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element 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.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," "provided," and the like are to be construed broadly and can, for example, be 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 by those skilled in the art according to specific situations.

Example 1

Referring to fig. 1-2, the present embodiment provides a motor shaft for a water pump, including an inner connecting portion 1, an outer connecting portion 2, and a mounting member 3, where two ends of the mounting member 3 are detachably connected to the outer connecting portion 2 and the inner connecting portion 1, respectively;

the inner connecting part 1 comprises a positioning shaft 101, a transmission shaft 102 is arranged on the positioning shaft, transmission surfaces 102a are arranged on the side surfaces of the transmission shaft 102, the transmission surfaces 102a can be arranged into two symmetrical groups according to requirements, a first connecting shaft 103 is arranged at one end, far away from the positioning shaft 101, of the transmission shaft 102, and an outer threaded rod 4 is arranged on the first connecting shaft 103;

the external connecting part 2 comprises a second connecting shaft 201, a connecting piece 202 is arranged at the tail end of the second connecting shaft 201, and an external threaded rod 4 is arranged at one end, far away from the connecting piece, of the second connecting shaft 202;

an internal thread 5 matched with the external thread rod 4 is arranged in the mounting piece 3.

When the inner connecting portion 1 and the outer connecting portion 2 are completely installed in the installation member 3, the two sets of external threaded rods 4 are not in contact or just in contact, and in this embodiment, the opposite ends of the first connecting shaft 103 and the second connecting shaft 201 are provided with the same external threaded rods 4, so as to facilitate quick installation with the installation member 3.

All be equipped with spacing bulge loop 6 on first connecting axle 103 and the second connecting axle 201, the diameter of spacing bulge loop 6 is not more than the diameter of installed part 3, in this embodiment, spacing bulge loop 6 plays certain limiting displacement, and the completion has been injectd to the internal thread 5 in the installed part and the thread length of two sets of external screw thread poles 4, when observing installed part 3 and spacing bulge loop 6 fast contact, at this moment, operating personnel should rotate interior connecting portion 1 or outer joint portion 2 gently, until installed part 3 and interior connecting portion 1 and outer joint portion 2 screw complete can.

Outer connecting portion 2 and inner connecting portion 1's middle part all is equipped with constant head tank 7, and convenient location processing, and installed part 3 is hollow structure, so its inside constant head tank 7 that need not set up.

On the location axle 101, the front end of transmission shaft 103 is equipped with guide face 104, and the guide face personally submits the conical setting, through being equipped with guide face 104, conveniently inserts the motor shaft inside the motor and installs.

Be equipped with circular surface and the arcwall face of relative setting on the connecting piece 202, the arcwall face surface is equipped with screw thread end 202a, is equipped with circular surface and arcwall face on the connecting piece 202, easy to assemble outside connecting piece.

The working principle of the utility model is as follows: interior connecting portion 1 sets up the inside at the motor, transmission face 102a on the transmission shaft 102 is connected with the interior spare part transmission of motor, whole motor shaft is stabilized to location axle 101, install first connecting axle 103 and second connecting axle 201 together through installed part 3, be about to outer connecting portion 2 and interior connecting portion 1 installation together, the motor shaft rotates the in-process, the external connection spare that drives on the connecting piece 202 rotates together, when needs change or maintain the motor shaft, the rotation is taken out second connecting axle 201, and take out installed part 3 can according to actual need.

The above-mentioned embodiments only express a certain implementation mode of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention; it should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which are within the protection scope of the present invention; therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A motor shaft for water pump which characterized in that: the connecting device comprises an inner connecting part (1), an outer connecting part (2) and a mounting part (3), wherein two ends of the mounting part (3) are respectively detachably connected with the outer connecting part (2) and the inner connecting part (1);

the inner connecting part (1) comprises a positioning shaft (101), a transmission shaft (102) is arranged on the positioning shaft (101), a transmission surface (102 a) is arranged on the side surface of the transmission shaft (102), a first connecting shaft (103) is arranged at one end, far away from the positioning shaft (101), of the transmission shaft (102), and an external threaded rod (4) is arranged on the first connecting shaft (103);

the external connecting part (2) comprises a second connecting shaft (201), a connecting piece (202) is arranged at the tail end of the second connecting shaft (201), and an external thread rod (4) is arranged at one end, far away from the connecting piece (202), of the second connecting shaft (201);

an internal thread (5) matched with the external thread rod (4) is arranged in the mounting piece (3).

2. The motor shaft for a water pump of claim 1, wherein: all be equipped with spacing bulge loop (6) on first connecting axle (103) and second connecting axle (201), the diameter of spacing bulge loop (6) is not more than the diameter of installed part (3).

3. The motor shaft for a water pump of claim 1, wherein: and the middle parts of the outer connecting part (2) and the inner connecting part (1) are respectively provided with a positioning groove (7).

4. The motor shaft for a water pump of claim 1, wherein: and the front end of the transmission shaft (102) is provided with a guide surface (104) on the positioning shaft (101).

5. The motor shaft for a water pump of claim 1, wherein: the connecting piece (202) is provided with a round surface and an arc surface which are oppositely arranged, and the outer surface of the arc surface is provided with a threaded end (202 a).