External dustproof mechanism for right-angle gear motor

Abstract

The utility model relates to the technical field of right-angle gear motors, in particular to an external dustproof mechanism for a right-angle gear motor, which comprises a right-angle gear motor main body and a dustproof rear cover, the dustproof rear cover is arranged on the outer side of the back end of the right-angle gear motor main body, and the dustproof rear cover comprises a rear cover cover and a dustproof net plate slidably sleeved in the rear cover cover. A plurality of fastening screws are in threaded connection between the right-angle gear motor main body and the rear cover, a transverse barrier strip is fixedly connected to the interior of the rear cover, a rectangular positioning block is fixedly connected to the back end of the transverse barrier strip, an assembly seat is fixedly arranged in the middle of the dustproof net plate in a sleeving manner, and an assembly stud is in threaded connection with the assembly seat in a penetrating manner; according to the utility model, the rear cover cover and the dustproof net plate in the dustproof rear cover can be conveniently assembled and disassembled, the damaged dustproof net plate can be conveniently and independently replaced, and the later maintenance cost of the right-angle gear motor can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of right-angle reduction motors, in particular to an external dust-proof mechanism for a right-angle reduction motor. Background Technique

[0002] The right-angle reduction motor is driven by a motor to realize the automation of angle adjustment, finely processes worm and worm gear or gear transmission, has infinite angle adjustment, and has a precise shafting design, ensuring high precision, large load-bearing capacity. The stepping motor and the transmission part are connected by an elastic coupling to eliminate spatial and machining form and position errors. To ensure the dust-proof effect of the right-angle reduction motor, a dust-proof rear cover is usually arranged on the outer side of the rear end of the right-angle reduction motor. Most of the existing dust-proof rear covers of right-angle reduction motors are integrally formed by a rear cover and a dust-proof net plate. The dust-proof rear cover is fastened to the outer side of the rear end of the right-angle reduction motor by several screws. When the dust-proof net plate is damaged, the dust-proof net plate cannot be replaced separately, and the dust-proof rear cover needs to be replaced as a whole, increasing the later maintenance cost of the right-angle reduction motor. Therefore, we propose an external dust-proof mechanism for a right-angle reduction motor to solve the above problems. Content of the Utility Model

[0003] The purpose of the utility model is to provide an external dust-proof mechanism for a right-angle reduction motor to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution:

[0005] An external dust-proof mechanism for a right-angle reduction motor includes a right-angle reduction motor main body and a dust-proof rear cover. The dust-proof rear cover is arranged on the outer side of the rear end of the right-angle reduction motor main body. The dust-proof rear cover includes a rear cover and a dust-proof net plate slidably sleeved in the rear cover. There are several fastening screws threadedly connected between the right-angle reduction motor main body and the rear cover. A transverse stop bar is fixedly connected inside the rear cover. A rectangular positioning block is fixedly connected to the rear end of the transverse stop bar. An assembly seat is fixedly sleeved in the middle of the dust-proof net plate. A rectangular groove is opened on the front end face of the assembly seat. The rectangular positioning block is inserted into the rectangular groove in a matching manner. An assembly stud is threadedly connected through the assembly seat. A positioning screw groove is opened on the rear end face of the rectangular positioning block. The assembly stud is adapted to the positioning screw groove. A retaining ring assembly is fixedly sleeved on the outside of the assembly stud. The opposite end faces of the assembly seat and the retaining ring assembly are in contact with each other. A knob block is fixedly connected to the rear end of the assembly stud.

[0006] Preferably, the retaining ring assembly includes a limit retaining ring and a rubber ring. The rubber ring is fixedly sleeved on the outside of the assembly stud. The rubber ring is fixedly connected to the front end face of the limit retaining ring.

[0007] Preferably, the outer diameter of the limit retaining ring is the same as that of the rubber ring, and the inner diameter of the rubber ring is larger than that of the limit retaining ring.

[0008] Preferably, the cross-sectional shape of the knob block is a regular hexagon, and the back end face of the knob block is flush with the back end face of the rear cover.

[0009] Preferably, the number of the fastening screws is four, and the four fastening screws are arranged at equal intervals in a circular shape.

[0010] Preferably, a counterbore groove is formed at a position corresponding to the fastening screw on the side surface of the rear cover, and the end cap portion of the fastening screw is located in the counterbore groove.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] In the present utility model, the rectangular positioning block is inserted into the rectangular groove on the assembly seat, and the knob block is rotated to tighten the assembly stud, so that the assembly stud is threadedly connected to the positioning thread groove. The opposite end faces of the assembly seat and the retaining ring assembly are in contact with each other. The rubber ring can provide a good squeezing and blocking effect on the assembly seat, thereby positioning and assembling the dust-proof net plate in the rear cover to form a dust-proof rear cover. The rear cover and the dust-proof net plate in the dust-proof rear cover can be assembled and disassembled. If the dust-proof net plate in the dust-proof rear cover is damaged, the knob block is rotated to loosen the assembly stud, so that the assembly stud is disengaged from the positioning thread groove, and the dust-proof net plate is slid out along the inner part of the rear cover by holding the knob block, and then the disassembly can be completed. Thus, it is convenient to separately replace the damaged dust-proof net plate without replacing the whole dust-proof rear cover, which is beneficial to reducing the later maintenance cost of the right-angle reduction motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a three-dimensional structural schematic diagram of an external dust-proof mechanism for a right-angle reduction motor of the present utility model;

[0014] Figure 2 is a partial cross-sectional structural schematic diagram of an external dust-proof mechanism for a right-angle reduction motor of the present utility model;

[0015] Figure 3 is Figure 2 an enlarged structural schematic diagram of part A in

[0016] In the figure: 1. Right-angle reduction motor main body; 2. Dust-proof rear cover; 201. Rear cover; 202. Dust-proof net plate; 203. Horizontal strip; 204. Rectangular positioning block; 2041. Positioning thread groove; 205. Counterbore groove; 3. Fastening screw; 4. Assembly seat; 401. Rectangular groove; 5. Assembly stud; 501. Knob block; 6. Retaining ring assembly; 601. Limit retaining ring; 602. Rubber ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Next, in combination with the accompanying drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0018] Please refer to Figures 1-3 as shown, a technical solution provided by the present invention:

[0019] An external dust-proof mechanism for a right-angle reduction motor, including a right-angle reduction motor main body 1 and a dust-proof rear cover 2. The dust-proof rear cover 2 is arranged on the outer side of the back end of the right-angle reduction motor main body 1. The dust-proof rear cover 2 includes a rear cover 201 and a dust-proof net plate 202 slidably sleeved in the rear cover 201. A plurality of fastening screws 3 are threadedly connected between the right-angle reduction motor main body 1 and the rear cover 201. A transverse blocking strip 203 is fixedly connected inside the rear cover 201. A rectangular positioning block 204 is fixedly connected to the back end of the transverse blocking strip 203. An assembly seat 4 is fixedly sleeved in the middle of the dust-proof net plate 202. A rectangular groove 401 is opened on the front end face of the assembly seat 4. The rectangular positioning block 204 is fitted and inserted into the rectangular groove 401. An assembly stud 5 is threadedly connected through the assembly seat 4. A positioning screw groove 2041 is opened on the back end face of the rectangular positioning block 204. The assembly stud 5 is adapted to the positioning screw groove 2041, so that the assembly stud 5 on the assembly seat 4 can be threadedly connected to the positioning screw groove 2041 in cooperation. A retaining ring assembly 6 is fixedly sleeved on the outer part of the assembly stud 5. The opposite end faces of the assembly seat 4 and the retaining ring assembly 6 are in contact with each other. A knob block 501 is fixedly connected to the back end of the assembly stud 5.

[0020] As a preferred implementation manner in this embodiment, as Figure 3 shown, the retaining ring assembly 6 includes a limit retaining ring 601 and a rubber ring 602. The rubber ring 602 is fixedly sleeved on the outer part of the assembly stud 5. The rubber ring 602 is fixedly connected to the front end face of the limit retaining ring 601.

[0021] As a preferred implementation manner in this embodiment, as Figure 3 shown, the outer diameter dimension of the limit retaining ring 601 is the same as the outer diameter dimension of the rubber ring 602, and the inner diameter dimension of the rubber ring 602 is greater than the inner diameter dimension of the limit retaining ring 601. The rubber ring 602 can play a good squeezing and blocking effect on the assembly seat 4.

[0022] As a preferred implementation manner in this embodiment, as Figure 1 and Figure 2As shown, the cross-sectional shape of the knob block 501 is a regular hexagon, and the back end face of the knob block 501 is flush with the back end face of the rear cover 201.

[0023] As a preferred implementation manner in this embodiment, as Figure 1 and Figure 2 shown, the number of the fastening screws 3 is four, and the four fastening screws 3 are arranged in a circular equidistant interval. A counterbore groove 205 is formed at a position corresponding to the fastening screw 3 on the side surface of the rear cover 201, and the end cap portion of the fastening screw 3 is located in the counterbore groove 205, achieving the purpose of hiding the end cap portion of the fastening screw 3.

[0024] Working principle:

[0025] During use, by fitting and inserting the rectangular positioning block 204 into the rectangular groove 401 on the assembly base 4, and rotating and tightening the assembly stud 5 with the knob block 501, the assembly stud 5 is threadedly connected to the positioning thread groove 2041, and the opposite end faces of the assembly base 4 and the retaining ring assembly 6 are in contact with each other, so as to position and assemble the dust-proof net plate 202 in the rear cover 201 to form a dust-proof rear cover 2, making it convenient to assemble and disassemble the rear cover 201 and the dust-proof net plate 202 in the dust-proof rear cover 2. If the dust-proof net plate 202 in the dust-proof rear cover 2 is damaged, rotate and loosen the assembly stud 5 with the knob block 501, so that the assembly stud 5 disengages from the positioning thread groove 2041, and hold the knob block 501 to slide the dust-proof net plate 202 out along the inside of the rear cover 201 to complete the disassembly, thus facilitating the replacement of the damaged dust-proof net plate 202 alone.

[0026] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An external dust-proof mechanism for a right-angle reduction motor, comprising a right-angle reduction motor main body (1) and a dust-proof rear cover (2), the dust-proof rear cover (2) is arranged on the outer side of the back end of the right-angle reduction motor main body (1), and is characterized in that: The dust-proof rear cover (2) includes a rear cover housing (201) and a dust-proof net plate (202) slidably sleeved inside the rear cover housing (201). A number of fastening screws (3) are threadedly connected between the right-angle reduction motor main body (1) and the rear cover housing (201). A transverse stop bar (203) is fixedly connected inside the rear cover housing (201). A rectangular positioning block (204) is fixedly connected to the back end of the transverse stop bar (203). An assembly seat (4) is fixedly sleeved in the middle of the dust-proof net plate (202). A rectangular groove (401) is formed on the front end face of the assembly seat (4). The rectangular positioning block (204) is fitted and inserted into the rectangular groove (401). An assembly stud (5) is threadedly connected through the assembly seat (4). A positioning screw groove (2041) is formed on the back end face of the rectangular positioning block (204). The assembly stud (5) is adapted to the positioning screw groove (2041). A retaining ring assembly (6) is fixedly sleeved on the outer part of the assembly stud (5). The opposite end faces of the assembly seat (4) and the retaining ring assembly (6) are in contact with each other. A knob block (501) is fixedly connected to the back end of the assembly stud (5).

2. The external dust-proof mechanism for a right-angle reduction motor according to claim 1, characterized in that: The retaining ring assembly (6) includes a limit retaining ring (601) and a rubber ring (602). The rubber ring (602) is fixedly sleeved on the outer part of the assembly stud (5). The rubber ring (602) is fixedly connected to the front end face of the limit retaining ring (601).

3. The external dust-proof mechanism for a right-angle reduction motor according to claim 2, characterized in that: The outer diameter dimension of the limit retaining ring (601) is the same as the outer diameter dimension of the rubber ring (602). The inner diameter dimension of the rubber ring (602) is larger than the inner diameter dimension of the limit retaining ring (601).

4. The external dust-proof mechanism for a right-angle reduction motor according to claim 1, characterized in that: The cross-sectional shape of the knob block (501) is a regular hexagon. The back end face of the knob block (501) is flush with the back end face of the rear cover housing (201).

5. The external dust-proof mechanism for a right-angle reduction motor according to claim 1, characterized in that: The number of the fastening screws (3) is four. The four fastening screws (3) are arranged in a circular equidistant interval distribution.

6. The external dust-proof mechanism for a right-angle reduction motor according to claim 1, characterized in that: A counterbore groove (205) is formed at the position corresponding to the fastening screw (3) on the side face of the rear cover housing (201). The end cap part of the fastening screw (3) is located in the counterbore groove (205).

Images