Motor housing

Abstract

The utility model belongs to the field of motors, and particularly relates to a motor shell which is low in cost and convenient to assemble. The motor shell comprises a hollow middle shell body, an outer ring made of nylon materials is arranged on the peripheral face of the middle shell body, connecting holes are evenly distributed in the side face of the outer ring, a polygonal counter bore is formed in the portion, at one end of each connecting hole, of the outer ring, the motor shell further comprises a connecting rod, a polygonal part is arranged on the connecting rod, a connecting screw hole is formed in the connecting rod along the axis, and the polygonal counter bore is connected with the connecting screw hole. The connecting rod is inserted and mounted in the connecting hole, the polygonal part is assembled in the counter bore, the end covers are arranged at the two ends of the middle shell respectively, connecting holes corresponding to the connecting screw holes are formed in the end covers, fasteners penetrate through the connecting holes to be connected with the connecting rod, and the end covers are fixed to the two ends of the middle shell. The utility model has the advantages of low cost, convenience and safety.

Description

Technical Field

[0001] The utility model belongs to the field of motors, and in particular relates to a motor housing with low cost and convenient assembly. Background Art

[0002] The motor housings in the prior art are all made of aluminum alloy materials. However, with the rising price of aluminum alloy materials, the production cost of the motor housing is relatively high, which cannot meet the needs of customers for cost reduction and efficiency improvement. Summary of the invention

[0003] In view of the difficulties existing in the prior art, the utility model designs a motor housing which is low-cost and easy to assemble.

[0004] The technical solution of the utility model is as follows:

[0005] The motor housing includes a hollow intermediate housing, characterized in that an outer ring of nylon material is provided on the outer circumferential surface of the intermediate housing, connecting holes are evenly distributed on the side surfaces of the outer ring, a polygonal countersunk hole is provided on the outer ring at one end of the connecting hole, and also includes a connecting rod, a polygonal portion is provided on the connecting rod, and a connecting screw hole is provided along the axis of the connecting rod, the connecting rod is inserted and installed in the connecting hole, and the polygonal portion is assembled in the countersunk hole, and also includes a group of end covers, the end covers are respectively arranged at the two ends of the intermediate housing, the end covers are provided with connecting holes corresponding to the connecting screw holes, and fasteners are connected to the connecting rod through the connecting holes to fix the end covers to the two ends of the intermediate housing.

[0006] Furthermore, the polygon is a hexagon.

[0007] Furthermore, the outer ring and the intermediate housing are integrally formed by injection molding.

[0008] Furthermore, the end cover comprises an intermediate disk body, a connection ring is provided at the edge of the intermediate disk body, the connection hole is arranged on the connection ring, and a through hole is provided at the center of the intermediate disk body.

[0009] Furthermore, a reinforcing boss is provided on the surface of the intermediate disk body surrounding the through hole.

[0010] Furthermore, a plurality of teeth are arranged on the outer peripheral surface of the outer ring.

[0011] In summary, the utility model has the following beneficial effects:

[0012] 1. The utility model improves the motor housing. The housing adopts a structural design of a combination of an intermediate housing and an outer ring. The intermediate housing is made of aluminum alloy, and the outer ring is made of nylon material. Specifically, the outer ring is injection molded on the intermediate housing. The two are integrally formed, which effectively reduces the use of aluminum alloy. The motor housing obtained by combining the outer ring and the intermediate housing meets the requirements of structural strength, thereby reducing the manufacturing cost of the motor housing while ensuring the structural strength.

[0013] 2. Furthermore, the utility model designs a connecting rod, the surface of which is provided with a polygonal portion, and cooperates with the polygonal countersunk hole on the outer ring to ensure that the connecting rod will not rotate, thereby facilitating the installation of the end cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0015] Figure 2 It is a three-dimensional schematic diagram of the intermediate housing of the utility model;

[0016] Figure 3 A half-section schematic diagram of a connecting screw;

[0017] In the figure, 1 is the intermediate shell.

[0018] 2 is the outer ring, 20 is the connecting hole, 200 is the countersunk hole, and 21 is the tooth portion.

[0019] 3 is a connecting rod, 30 is a polygonal part, 31 is a connecting screw hole,

[0020] 4 is an end cap, 40 is a connecting hole, 400 is an intermediate disk, 410 is a connecting ring, 402 is a through hole, 403 is a reinforcing boss, DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0022] It should be noted that when an element is referred to as being "disposed on" or "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is referred to as being "fixed on" another element, or "fixedly connected" to another element, they may be fixed in a detachable manner or in a non-detachable manner. When an element is considered to be "connected" or "rotatably connected" to another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right", "upper", "lower" and similar expressions used are for illustrative purposes only and do not represent the only implementation method.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to restrict the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0024] The terms “first”, “second”, “third” and the like in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.

[0025] See also Figures 1 to 3 As shown, the motor housing includes a hollow intermediate housing 1, the outer circumferential surface of the intermediate housing 1 is provided with an outer ring 2 made of nylon, the side surfaces of the outer ring 2 are evenly provided with connecting holes 20, and the outer ring at one end of the connecting hole 20 is provided with a polygonal countersunk hole 200, and also includes a connecting rod 3, the connecting rod 3 is provided with a polygonal portion 30, and the specific polygonal portion is a polygonal body provided on the outer circumferential surface of the connecting rod, and the polygonal body is located at one end of the outer circumferential surface of the connecting rod, and the connecting rod 3 is provided with a connecting screw hole 31 along the axis, and the connecting rod 3 is inserted and installed in the connecting hole 20, and the polygonal portion 30 is assembled in the countersunk hole 200, that is, it is ensured that the connecting rod will not rotate in the connecting hole, and also includes a group of end covers 4, which are respectively arranged at the two ends of the intermediate housing, and the end covers 4 are provided with connecting holes 40 corresponding to the connecting screw holes, and the fasteners pass through the connecting holes 40 to connect with the connecting rod 3, and fix the end covers to the two ends of the intermediate housing.

[0026] The utility model improves the motor housing, specifically adopts an intermediate housing and an outer ring on the outer circumferential surface to form the middle part of the motor housing, the specific outer ring is made of nylon material, and the outer ring and the intermediate housing are injection molded as one body, the structural strength of the two meets the needs of customers, effectively reduces the use of aluminum metal materials, thereby reducing the manufacturing cost of the motor housing, further, the connection structure between the intermediate housing and the end cover is also improved, specifically, the connecting rod is first installed in the connecting hole, and the polygonal part of the connecting rod cooperates with the countersunk hole to ensure that the connecting rod will not rotate after installation, when the end cover is assembled, the end cover is installed first, specifically on the side of the polygonal part, at this time the fastener is connected to the connecting screw hole of the connecting rod, and then the end cover on the other side is installed, which is convenient for installation and also ensures the reliability of the connection between the end cover and the intermediate housing.

[0027] The polygon is a hexagon, which has a symmetrical structure, is easy to process and manufacture, and is stable in force during use.

[0028] The outer ring 2 and the intermediate housing 1 are integrally formed by injection molding, and the integral molding of the two ensures the structural strength of the two, while the process is simple and the production cost can be reduced.

[0029] The end cover 4 includes an intermediate disk body 400, a connecting ring 410 is provided at the edge of the intermediate disk body 400, the connecting hole 40 is arranged on the connecting ring 410, and a through hole 402 is provided at the center of the intermediate disk body 400, and the through hole is used for installing the motor shaft. The specific structure of the end cover is limited here. The surface of the intermediate disk body is higher than the surface of the connecting ring, and a stepped design is adopted to meet the structural strength requirements of the end cover.

[0030] The surface of the intermediate disk 400 is provided with a reinforcing boss 403 around the through hole. The provided reinforcing boss further strengthens the structural strength around the through hole, thereby ensuring the service life of the motor housing.

[0031] A plurality of teeth 21 are arranged on the outer circumference of the outer ring 2. The teeth 21 are arranged on the outer circumference of the outer ring for easy connection with other components.

[0032] In summary, the utility model has the following beneficial effects:

[0033] 1. The utility model improves the motor housing. The housing adopts a structural design of a combination of an intermediate housing and an outer ring. The intermediate housing is made of aluminum alloy, and the outer ring is made of nylon material. Specifically, the outer ring is injection molded on the intermediate housing. The two are integrally formed, which effectively reduces the use of aluminum alloy. The motor housing obtained by combining the outer ring and the intermediate housing meets the requirements of structural strength, thereby reducing the manufacturing cost of the motor housing while ensuring the structural strength.

[0034] 2. Furthermore, the utility model designs a connecting rod, the surface of which is provided with a polygonal portion, and cooperates with the polygonal countersunk hole on the outer ring to ensure that the connecting rod will not rotate, thereby facilitating the installation of the end cover.

[0035] Based on the described embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present invention.

Claims

1. A motor housing, comprising a hollow intermediate housing, characterized in that: An outer ring made of nylon is provided on the outer circumferential surface of the intermediate shell, and connecting holes are evenly distributed on the side surfaces of the outer ring. A polygonal countersunk hole is provided on the outer ring at one end of the connecting hole. The intermediate shell also includes a connecting rod, a polygonal portion is provided on the connecting rod, and a connecting screw hole is provided along the axis of the connecting rod. The connecting rod is inserted and installed in the connecting hole, and the polygonal portion is assembled in the countersunk hole. The intermediate shell also includes a group of end covers, which are respectively arranged at the two ends of the intermediate shell, and the end covers are provided with connecting holes corresponding to the connecting screw holes. Fasteners pass through the connecting holes to connect with the connecting rod to fix the end covers to the two ends of the intermediate shell.

2. The motor housing according to claim 1, characterized in that: The polygon is a hexagon.

3. The motor housing according to claim 1, characterized in that: The outer ring and the intermediate housing are integrally formed by injection molding.

4. The motor housing according to claim 1, characterized in that: The end cover comprises an intermediate disk body, a connecting ring is arranged on the edge of the intermediate disk body, the connecting hole is arranged on the connecting ring, and a through hole is arranged at the center of the intermediate disk body.

5. The motor housing according to claim 4, characterized in that: A reinforcing boss is arranged around the through hole on the surface of the intermediate disk.

6. The motor housing according to claim 1, characterized in that: A plurality of teeth are arranged on the outer peripheral surface of the outer ring.

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