Motor casing

Abstract

The utility model provides a motor casing, and belongs to the technical field of motors. The problem that potential safety hazards exist in an existing machine shell is solved. The motor shell comprises a horizontally arranged machine barrel and two end covers respectively arranged at two ends of the machine barrel, the two end covers are fixedly connected with the machine barrel through a circle of screws, a connecting strip is horizontally formed on the top wall of the machine barrel, a hanging ring is arranged above the connecting strip, the hanging ring comprises a ring body and a connecting rod vertically formed below the ring body, and the connecting rod is fixedly connected with the connecting strip. A connecting hole penetrating in the axial direction of the machine barrel is formed in the connecting strip, and screws are connected to the two ends of the connecting hole in a threaded mode; a limiting rod is further horizontally arranged in the connecting strip, and the two end faces of the limiting rod abut against the two corresponding screws respectively; a threaded hole allowing the connecting rod to be screwed in is vertically formed in the connecting strip and communicates with the connecting hole, a limiting hole is formed in the lower end of the connecting rod in the axial direction of the machine barrel in a penetrating mode, and the limiting rod penetrates through the limiting hole. The motor casing is high in safety.

Description

Technical Field

[0001] The utility model belongs to the technical field of motors and relates to a motor casing. Background Art

[0002] As an important component of the motor, the motor casing's main function is to protect and support the various components inside the motor while ensuring the normal operation of the motor.

[0003] An improved structure of an existing motor housing, such as that disclosed in the China Patent Library (application number: 201220345140.9), includes a motor housing body, a lifting ring seat welded to the motor housing body, and a lifting ring connected to the lifting ring seat by a thread; a threaded hole with an internal thread is provided on the lifting ring seat, and the lifting ring is set in the threaded hole through a screw with an external thread.

[0004] In the above-mentioned motor housing, the lifting ring is connected to the lifting ring seat through a thread, which may cause thread separation and pose a certain safety hazard. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems in the existing technology and to provide a motor casing with high safety.

[0006] The purpose of the utility model can be achieved through the following technical solutions: a motor casing, comprising a horizontally arranged barrel and two end covers respectively arranged at both ends of the barrel, both end covers are fixedly connected to the barrel by a circle of screws, a connecting strip is horizontally formed on the top wall of the barrel, a hanging ring is provided above the connecting strip, the hanging ring comprises a ring body and a connecting rod vertically formed below the ring body, characterized in that a connecting hole is provided in the connecting strip along the axial direction of the barrel, and the above-mentioned screws are screwed at both ends of the connecting hole; a limiting rod is also horizontally provided in the connecting strip, and the two end surfaces of the limiting rod are respectively pressed against the corresponding two screws; a threaded hole for the connecting rod to be screwed in is vertically opened on the connecting strip, and the threaded hole is connected to the above-mentioned connecting hole, a limiting hole is provided at the lower end of the connecting rod along the axial direction of the barrel, and the above-mentioned limiting rod is passed through the limiting hole.

[0007] The limit rod is set in the connecting strip and passed through the limit hole, which can limit the up and down movement distance of the hanging ring, thereby effectively preventing the hanging ring from separating from the barrel and improving the safety of the motor during suspension transportation.

[0008] At the same time, two of the screws are used to position the end cover and the limit rod at the same time, which has a dual function, simplifying the structure and facilitating assembly.

[0009] In the above-mentioned motor housing, the above-mentioned connecting strip extends upward to form a protrusion, and the upper end of the threaded hole extends to the protrusion to increase the threaded engagement length of the hanging ring and the connecting strip, making the connection between the two more stable and safer.

[0010] In the above-mentioned motor housing, the lower end of the threaded hole extends to the lower side of the connecting hole, and the lower end of the connecting rod is screwed into the lower end of the threaded hole, so that the threaded engagement length of the hanging ring and the connecting bar is longer.

[0011] In the above-mentioned motor housing, a ring-shaped limit seat is formed on the outer wall of the upper end of the connecting rod, and the limit seat is pressed on the top surface of the protrusion, so that the hanging ring can be screwed into place at one time, which is convenient for subsequent assembly.

[0012] In the above-mentioned motor housing, the outer side surface of the limiting rod and the inner side surface of the connecting hole are in contact with each other through the circumferential surface, which is used to guide the installation of the limiting rod and facilitates the limiting rod to pass through the limiting hole.

[0013] In the above-mentioned motor housing, the diameter of the limiting hole is larger than the outer diameter of the limiting rod, and the limiting rod is used to pass through the limiting hole.

[0014] In the above-mentioned motor casing, the barrel is a cast integral part.

[0015] Compared with the existing technology, this motor casing has the following advantages:

[0016] 1. The limit rod is set in the connecting strip and passed through the limit hole, which can limit the up and down movement distance of the hanging ring, thereby effectively preventing the hanging ring from separating from the barrel and improving the safety of the motor during suspension transportation.

[0017] 2. Two of the screws are used to position the end cover and the limit rod at the same time, which has a dual purpose. It simplifies the structure and facilitates assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the motor casing.

[0019] Figure 2 It is a cross-sectional view of the motor casing.

[0020] Figure 3 yes Figure 2 Enlarged schematic diagram of point A in the middle.

[0021] Figure 4 It is a three-dimensional schematic diagram of the hanging ring.

[0022] In the figure, 1, barrel; 1a, connecting strip; 1b, bump; 2, end cover; 3, screw; 4, hanging ring; 4a, ring body; 4b, connecting rod; 4c, limiting hole; 4d, limiting seat; 5, limiting rod. DETAILED DESCRIPTION

[0023] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0024] like Figure 1 and Figure 2 As shown, the motor housing includes a horizontally arranged barrel 1 and two end covers 2 respectively arranged at both ends of the barrel 1. The two end covers 2 are respectively pressed against the two end surfaces of the barrel 1, and both end covers 2 are fixed to the barrel 1 through a circle of screws 3.

[0025] in,

[0026] like Figures 1 to 4 As shown, a connecting strip 1a is horizontally formed on the top wall of the barrel 1, and the length of the connecting strip 1a extends along the axial direction of the barrel 1. A hanging ring 4 is provided above the connecting strip 1a. The hanging ring 4 is an integrated structure and includes a ring body 4a and a connecting rod 4b vertically formed below the ring body 4a. A connecting hole is provided in the connecting strip 1a and extends along the axial direction of the barrel 1, and the above-mentioned screws 3 are screwed to both ends of the connecting hole. A limiting rod 5 is also horizontally provided in the connecting strip 1a, and the two end surfaces of the limiting rod 5 respectively press against the corresponding two screws 3 to limit the axial sliding of the limiting rod 5. A threaded hole is vertically provided on the connecting strip 1a for the connecting rod 4b to be screwed in, and the threaded hole is connected to the above-mentioned connecting hole. A limiting hole 4c is provided at the lower end of the connecting rod 4b and extends along the axial direction of the barrel 1, and the above-mentioned limiting rod 5 is inserted into the limiting hole 4c.

[0027] The limiting rod 5 is arranged in the connecting strip 1a and passes through the limiting hole 4c, so that the up and down movement distance of the hanging ring 4 can be limited, thereby effectively preventing the hanging ring 4 from separating from the barrel 1 and improving the safety of the motor during suspension transportation.

[0028] At the same time, two of the screws 3 are used to position the end cover 2 and the limiting rod 5 at the same time, and have a dual purpose, which simplifies the structure and facilitates assembly.

[0029] Furthermore, connecting bar 1a extends upward to form a protrusion 1b, and the upper end of the threaded hole extends to the protrusion 1b, thereby increasing the length of threaded engagement between the hook 4 and connecting bar 1a, making the connection more stable and secure. The lower end of the threaded hole extends to the underside of the connecting hole, and the lower end of the connecting rod 4b is screwed into the lower end of the threaded hole, further extending the threaded engagement between the hook 4 and connecting bar 1a.

[0030] like Figure 3 As shown, a ring-shaped limit seat 4d is formed on the outer wall of the upper end of the connecting rod 4b. The limit seat 4d and the connecting rod 4b are coaxially arranged, and the limit seat 4d is pressed on the top surface of the protrusion 1b, so that the hanging ring 4 can be screwed into place at one time, which is convenient for subsequent assembly.

[0031] In the actual product, the barrel 1 is a cast integral part; the outer side surface of the limiting rod 5 and the inner side surface of the connecting hole are in contact with each other through the circumferential surface, which is used to guide the installation of the limiting rod 5, making it easier for the limiting rod 5 to pass through the limiting hole 4c; the aperture of the limiting hole 4c is larger than the outer diameter of the limiting rod 5, and the limiting rod 5 can be further passed through the limiting hole 4c.

[0032] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A motor housing, comprising a horizontally arranged barrel (1) and two end covers (2) respectively arranged at both ends of the barrel (1), the two end covers (2) being fixed to the barrel (1) by a circle of screws (3), a connecting strip (1a) being horizontally formed on the top wall of the barrel (1), a hanging ring (4) being provided above the connecting strip (1a), the hanging ring (4) comprising a ring body (4a) and a connecting rod (4b) vertically formed below the ring body (4a), characterized in that: A connecting hole is provided in the connecting strip (1a) and is arranged to pass through the barrel (1) axially, and the screws (3) are screwed to both ends of the connecting hole; a limiting rod (5) is also arranged horizontally in the connecting strip (1a), and the two end surfaces of the limiting rod (5) are respectively pressed against the corresponding two screws (3); a threaded hole is vertically provided on the connecting strip (1a) for the connecting rod (4b) to be screwed in, and the threaded hole is connected to the connecting hole; a limiting hole (4c) is provided at the lower end of the connecting rod (4b) and is arranged to pass through the barrel (1) axially, and the limiting rod (5) is inserted into the limiting hole (4c).

2. The motor housing according to claim 1, characterized in that: The connecting strip (1a) extends upward to form a protrusion (1b), and the upper end of the threaded hole extends to the protrusion (1b).

3. The motor housing according to claim 2, characterized in that: The lower end of the threaded hole extends to the lower side of the connecting hole, and the lower end of the connecting rod (4b) is screwed into the lower end of the threaded hole.

4. The motor housing according to claim 1, 2 or 3, characterized in that: An annular limiting seat (4d) is formed on the outer wall of the upper end of the connecting rod (4b), and the limiting seat (4d) is pressed on the top surface of the protrusion (1b).

5. The motor housing according to claim 1, characterized in that: The outer side surface of the limiting rod (5) and the inner side surface of the connecting hole are in contact with each other through the circumferential surface.

6. The motor housing according to claim 5, characterized in that: The diameter of the limiting hole (4c) is larger than the outer diameter of the limiting rod (5).

7. The motor housing according to claim 1, characterized in that: The barrel (1) is a cast integral part.

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