Protective structure of gear motor

Abstract

The utility model provides a gear motor protection structure, and belongs to the technical field of motors. The problem that an existing protection structure is complex is solved. The gear motor comprises a motor body and a gear box arranged on the front side of the motor body, the motor body comprises a front end cover and a rotor shaft, the gear box comprises a box body and an input shaft arranged in the box body, the box body is provided with a through hole for the rear end of the input shaft to extend out, and a bearing pressing ring is fixed at the position of the through hole. The front end of the rotor shaft is connected with the rear end of the input shaft through a coupling, the coupling comprises a fastening screw, the protection structure comprises a front sleeve and a rear sleeve which are sleeved outside the coupling, the front end of the rear sleeve is sleeved on the rear end of the front sleeve, and the fastening screw can be exposed by sliding the front sleeve backwards; the front end of the front sleeve is fixedly connected with a bearing pressing ring; a connecting ring is formed on the front end face of the front end cover, and the rear end of the rear sleeve is sleeved and fixed on the connecting ring. The gear motor protection structure is simple in structure.

Description

TECHNICAL FIELD

[0001] The utility model belongs to motor technical field relates to a speed reducer motor especially a speed reducer motor protection structure. BACKGROUND

[0002] Speed reducer motor is the combination of motor and reducer, through reducing the rotating speed, increasing the torque to adapt to the actual application demand.

[0003] The existing speed reducer motor such as the shock resistance environment speed reducer motor (application number: 202410957537.0) disclosed by Chinese patent library includes motor main body, shaft coupling and gear box, the output end of motor main body is fixedly connected with shaft coupling, the other end of shaft coupling is fixedly connected with the input end of gear box, the bottom of motor main body is fixedly connected with shock absorbing assembly, the bottom of gear box is fixedly connected with support assembly;The shock absorbing assembly includes positioning ring, support frame and base, the angle between adjacent two support frames is ninety degrees, the bottom of support frame is fixedly installed in positioning ring, the bottom of support frame is movably connected with cross frame, the bottom of cross frame is fixedly connected with rubber plate, and the rubber plate is fixedly installed in the inside of base;The bottom of support frame is fixedly installed with pressing plate, the pressing plate is lapped on the upper surface of cross frame, the inside of support frame is fixedly installed with link block, the inside of cross frame is fixedly installed with fixed block, and the link block and fixed block are fixedly connected with pull rope, wherein two pull ropes are staggered, and one side of link block is lapped on the inner wall of cross frame.

[0004] In the above speed reducer motor, the two ends of the shaft coupling are connected with the gear box and the motor main body respectively by flanges, and the inside of the shaft coupling is a rotating body for connecting the motor main body main shaft and the input shaft, so that the structure of the whole shaft coupling is relatively complex, which affects the running stability and service life. UTILITY MODEL CONTENTS

[0005] The utility model aims at the above problems existing in prior art, and provides a speed reducer motor protection structure which is simple in structure and stable in work.

[0006] The utility model discloses a speed reducer motor protection structure, speed reducer motor includes motor body and the gear box of setting at the front side of motor body, and the motor body includes the front end cover and rotor shaft, and the gear box includes the box and sets up the input shaft in the box, is equipped with the through -hole of the input shaft rear end of the box to the hole, and the through -hole is fixed with the bearing pressure ring, and the rotor shaft front end passes through the shaft coupling and is connected the input shaft rear end, and the shaft coupling includes fastening screw, and its characterized in that, the protection structure includes the front sleeve and rear sleeve of all sleeveing in the shaft coupling, and the rear sleeve front end sleeve sets up on the rear end of front sleeve, and the front sleeve can expose the fastening screw of above-mentioned before sliding back, and the front end of front sleeve is fixedly connected with the bearing pressure ring of above-mentioned, and the front end surface of front end cover is formed with the connecting ring, and the rear end of rear sleeve is sleeved and fixed on the connecting ring.

[0007] The protection structure forms the cavity containing the shaft coupling, the input shaft rear end and the rotor shaft front end under the cooperation of the front sleeve and the rear sleeve, which can simplify the structure of the shaft coupling under the premise of covering the rotating parts, so that the structure of the shaft coupling is more simple and efficient, and the stable operation of the speed reducer motor is ensured.

[0008] In the above-mentioned speed reducer motor protection structure, the rear sleeve and the connecting ring are tightly connected, so that the installation can be completed by directly pressing into the rear sleeve, thereby facilitating assembly.

[0009] In the above-mentioned speed reducer motor protection structure, a threaded hole is radially formed in the rear end side wall of the rear sleeve, and a bolt is screwed in the threaded hole and pressed against the outer side of the connecting ring. The bolt is arranged to further limit the movement of the rear sleeve in the axial direction, thereby achieving better protection.

[0010] In the above-mentioned speed reducer motor protection structure, a connecting seat is formed in the front end outer side wall of the front sleeve, the connecting seat is pressed against the bearing pressure ring, and the connecting seat, the bearing pressure ring and the box are fixed together by a ring of rods passing through the connecting seat, the bearing pressure ring and the screw in the box in sequence. The front sleeve and the bearing pressure ring are fixed by the same ring of screws, which simplifies the structure and further facilitates assembly.

[0011] In the above-mentioned speed reducer motor protection structure, the rear end of the rear sleeve is in the shape of a neck, so that the volume of the cavity composed of the front sleeve and the rear sleeve can be enlarged during actual design, which is beneficial to heat dissipation of the shaft coupling.

[0012] In the above-mentioned speed reducer motor protection structure, the side wall of the front sleeve is densely provided with front heat dissipation holes that are radially formed.

[0013] In the above-mentioned speed reducer motor protection structure, the side wall of the rear sleeve is densely provided with rear heat dissipation holes that are radially formed.

[0014] Under the cooperation of the front heat dissipation holes and the rear heat dissipation holes, the heat dissipation of the shaft coupling can be further accelerated.

[0015] Compared with the prior art, the protective structure of the speed reduction motor has the following advantages:

[0016] 1. The protective structure forms a cavity accommodating the coupling, the rear end of the input shaft and the front end of the rotor shaft under cooperation of the front sleeve and the rear sleeve, so that the rotating parts are hidden and the coupling structure is simplified, so that the coupling structure is more simple and efficient, and the stable operation of the speed reduction motor is ensured.

[0017] 2. The bolt is arranged to further limit the movement of the rear sleeve in the axial direction, so as to better protect.

[0018] 3. The front sleeve and the bearing pressing ring are fixed by the same circle of screws, so that the structure is simplified and the assembly is further facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a sectional view of a speed reduction motor.

[0020] Figure 2 is Figure 1 an enlarged view of A in FIG. 4.

[0021] Figure 3 is a structural schematic view of the speed reduction motor after removing the front sleeve and the rear sleeve.

[0022] In the figure, 1 is a motor body; 1a is a front end cover; 1a1 is a connecting ring; 1b is a rotor shaft; 2 is a gear box; 2a is a box body; 2b is an input shaft; 3 is a bearing pressing ring; 4 is a coupling; 4a is a fastening screw; 5 is a front sleeve; 5a is a connecting seat; 5b is a front heat dissipation hole; 6 is a rear sleeve; 6a is a rear heat dissipation hole; 7 is a bolt; and 8 is a screw. DETAILED DESCRIPTION

[0023] The following is a specific embodiment of the present application combined with the drawings, which further describes the technical scheme of the present application, but the present application is not limited to these embodiments.

[0024] Embodiment one

[0025] As Figure 1 and Figure 3As shown in the speed reducer protection structure, the speed reducer comprises a motor body 1 and a gear box 2 arranged at the front side of the motor body 1. The motor body 1 is of an existing structure, comprising a front end cover 1a and a rotor shaft 1b; the gear box 2 comprises a box body 2a and an input shaft 2b horizontally arranged in the box body 2a, the box body 2a is provided with a through hole for the rear end of the input shaft 2b to extend out, a bearing pressing ring 3 is fixed at the through hole and the bearing pressing ring 3 is sleeved on the input shaft 2b; the rotor shaft 1b and the input shaft 2b are coaxially arranged, and the front end of the rotor shaft 1b is connected to the rear end of the input shaft 2b through a coupling 4. The coupling 4 is of an existing structure, and a Hambert coupling is adopted in the present application, the coupling 4 comprises a fastening screw 4a arranged at the side.

[0026] The protection structure comprises a front sleeve 5 and a rear sleeve 6, both of which are sleeved outside the coupling 4, the rear end of the rear sleeve 6 is sleeved on the front end of the front sleeve 5, and the rear sleeve 5 can be slid backward to expose the fastening screw 4a. Preferably, the outer side surface of the front sleeve 5 abuts against the inner side surface of the rear sleeve 6, so that the front sleeve 5 can slide more stably and smoothly.

[0027] As shown in Figure 1 and Figure 2 the front end of the front sleeve 5 is fixedly connected with the bearing pressing ring 3; the front end surface of the front end cover 1a is formed with a connecting ring 1a1, the connecting ring 1a1 is coaxially arranged with the front end cover 1a, and the rear end of the rear sleeve 6 is sleeved and fixed on the connecting ring 1a1.

[0028] The protection structure forms a cavity accommodating the coupling 4, the rear end of the input shaft 2b and the front end of the rotor shaft 1b under the cooperation of the front sleeve 5 and the rear sleeve 6, which can simplify the structure of the coupling 4 while hiding the rotating parts, so that the structure of the coupling 4 is more simple and efficient, and the stable operation of the speed reducer is ensured.

[0029] Specifically,

[0030] The rear sleeve 6 is fixedly connected with the connecting ring 1a1 in close cooperation, so that the installation can be completed by directly pressing into the rear sleeve 6, which facilitates assembly. Further, a threaded hole is radially formed in the rear end side wall of the rear sleeve 6, a bolt 7 is screwed in the threaded hole, and the rod of the bolt 7 is pressed against the outer side surface of the connecting ring 1a1. The bolt 7 is arranged to further limit the movement of the rear sleeve 6 in the axial direction, thereby achieving better protection.

[0031] The connection mode of the front sleeve 5 and the bearing pressing ring 3 is as follows: a connecting seat 5a is formed on the front end outer side wall of the front sleeve 5, and the connecting seat 5a is coaxially arranged with the front sleeve 5. The connecting seat 5a is pressed against the bearing pressing ring 3, and the connecting seat 5a, the bearing pressing ring 3 and the box body 2a are fixed together by a ring of rods in sequence through the connecting seat 5a, the bearing pressing ring 3 and a screw 8 screwed into the box body 2a. The front sleeve 5 and the bearing pressing ring 3 are fixed by the same ring of screws 8, which simplifies the structure and further facilitates assembly.

[0032] In the actual product, the rear end of the rear sleeve 6 is in the shape of a necking, so that the volume of the cavity formed by the front sleeve 5 and the rear sleeve 6 can be enlarged in the actual design, which is beneficial to the heat dissipation of the coupling 4. Further, the side wall of the front sleeve 5 is densely provided with front heat dissipation holes 5b which are radially through; the side wall of the rear sleeve 6 is densely provided with rear heat dissipation holes 6a which are radially through. Under the cooperation of the front heat dissipation holes 5b and the rear heat dissipation holes 6a, the heat dissipation of the coupling 4 can be further accelerated. Preferably, the types of the front heat dissipation holes 5b and the rear heat dissipation holes 6a are both circular holes.

[0033] Embodiment Two

[0034] The structure and principle of this embodiment two are basically the same as those of embodiment one, and the difference lies in that the rear sleeve 6 is connected with the connecting ring 1a1 through threads.

[0035] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

Claims

1. A protective structure of a reduction motor, the reduction motor comprising a motor body (1) and a gear box (2) arranged at the front side of the motor body (1), the motor body (1) comprising a front end cover (1a) and a rotor shaft (1b), the gear box (2) comprising a box body (2a) and an input shaft (2b) arranged in the box body (2a), the box body (2a) being provided with a through hole for the rear end of the input shaft (2b) to extend out of, and a bearing pressing ring (3) being fixed at the through hole, the front end of the rotor shaft (1b) being connected to the rear end of the input shaft (2b) through a coupling (4), the coupling (4) comprising a fastening screw (4a), characterized in that, The protective structure comprises a front sleeve (5) and a rear sleeve (6) sleeved on the coupling (4), the rear sleeve (6) is sleeved on the rear end of the front sleeve (5), and the front sleeve (5) is slid backward to expose the fastening screw (4a); the front end of the front sleeve (5) is fixedly connected with the bearing pressing ring (3); the front end surface of the front end cover (1a) is formed with a connecting ring (1a1), and the rear end of the rear sleeve (6) is sleeved and fixed on the connecting ring (1a1).

2. The speed-reducing motor protection structure according to claim 1, wherein The rear sleeve (6) is fixedly connected with the connecting ring (1a1) in a close fit mode.

3. The speed-reducing motor protection structure according to claim 2, wherein A threaded hole is formed in the rear end side wall of the rear sleeve (6) and is threaded with a bolt (7), and the rod of the bolt (7) is pressed against the outer side surface of the connecting ring (1a1).

4. The speed-reducing motor protection structure according to claim 1 or 2 or 3, characterized by, The front end outer side wall of the front sleeve (5) is formed with a connecting seat (5a), the connecting seat (5a) is pressed against the bearing pressing ring (3), and the connecting seat (5a), the bearing pressing ring (3) and the box body (2a) are fixed together by a screw (8) which is sequentially threaded through the connecting seat (5a), the bearing pressing ring (3) and screwed into the box body (2a).

5. The speed-reducing motor protection structure according to claim 1, wherein The rear end of the rear sleeve (6) is in the shape of a neck.

6. The speed-reducing motor protection structure according to claim 1, wherein The side wall of the front sleeve (5) is densely provided with front heat dissipation holes (5b) which are radially formed.

7. The speed-reducing motor protection structure according to claim 1, wherein The side wall of the rear sleeve (6) is densely provided with rear heat dissipation holes (6a) which are radially formed.

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