Dustproof structure for stepper motor

Abstract

The utility model discloses a dustproof structure for stepping motor belongs to stepping motor technical field, including motor body and cable, the motor body side wall is equipped with the connecting seat, is equipped with the connecting port in the connecting seat, the cable is inserted in the connecting port, the connecting seat side wall is fixedly provided with the bellows, the cable is located bellows inside, the bellows is equipped with the fixed plate away from the connecting seat one end, the cable side wall is fixedly provided with the bottom plate, the bottom plate is fixed with fixed plate between through bolt, the fixed plate side wall is equipped with the recess to bottom plate one side, the recess middle position is fixedly provided with the fixed ring, the fixed ring outer activity is equipped with the sealing ring, sealing ring side wall and bottom plate side wall resist the top. The utility model discloses through setting up bellows outside the cable, and utilize the fixed plate and bottom plate bolted fixed means, to play dustproof effect to the cable connection position.

Description

Technical Field

[0001] This utility model belongs to the field of stepper motor technology, and in particular relates to a dustproof structure for stepper motors. Background Technology

[0002] A stepper motor is an open-loop control motor that converts electrical pulse signals into angular or linear displacement. Its core characteristic is its ability to achieve precise position and speed control through fixed-angle "steps" without the need for additional feedback devices. In clean environments or for short-term use, stepper motors do not require additional dustproof measures. However, in harsh environments (such as workshops or woodworking machinery), dustproof structures are necessary to prevent dust or debris from entering the motor and affecting its normal operation.

[0003] Currently, most stepper motors have dustproof structures located at the shaft end and heat dissipation vent. However, in addition to these two locations, the cable connection of the stepper motor also needs to be dustproofed. Many large stepper motors use sealed junction boxes for protection of their cable connection ports. However, the connection ports of small stepper motors are also smaller, so sealed junction boxes are not suitable. Although the cable is tightly inserted into the connection port, in harsh environments, dust can still enter the connection position through the gap between the two, leading to short circuits or poor contact.

[0004] To address this issue, we propose a dustproof structure for stepper motors. Utility Model Content

[0005] The purpose of this utility model is to solve the problems in the prior art by proposing a dustproof structure for stepper motors.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A dustproof structure for a stepper motor includes a motor body and a cable. A connecting seat is installed on the side wall of the motor body, and a connecting port is opened in the connecting seat. The cable is inserted into the connecting port. A corrugated tube is fixedly installed on the side wall of the connecting seat, and the cable is located inside the corrugated tube. A fixing plate is installed on the end of the corrugated tube away from the connecting seat. A base plate is fixedly installed on the side wall of the cable. The base plate and the fixing plate are fixed together by bolts. A groove is opened on the side wall of the fixing plate facing the base plate. A fixing ring is fixedly installed in the middle of the groove. A sealing ring is movably sleeved on the outside of the fixing ring. The side wall of the sealing ring abuts against the side wall of the base plate.

[0008] Preferably, a plurality of bristles are fixedly arranged inside the corrugated pipe, the plurality of bristles are arranged around the inner wall of the corrugated pipe, and the plurality of bristles abut against the side wall of the cable.

[0009] Preferably, a plurality of locking blocks are fixedly provided on the side wall of the base plate facing the fixing plate, and the plurality of locking blocks facing the center of the cable are all arc-shaped. A plurality of slots are provided outside the groove, and the plurality of locking blocks are respectively inserted into the plurality of slots.

[0010] Preferably, the sealing ring sidewall is rotatably connected to a plurality of rotating rods, and the ends of the plurality of rotating rods away from the sealing ring are respectively rotatably connected to a pushing block, and the pushing block has an arc-shaped design on the side facing away from the sealing ring.

[0011] Preferably, the width of the push block is the same as the width of the slot, and a telescopic spring is fixedly provided on the side wall of the push block facing the fixed ring, and the other end of the telescopic spring is fixedly connected to the side wall of the fixed ring.

[0012] Preferably, the inner diameter of the sealing ring is the same as the outer diameter of the fixing ring, and the sealing ring is made of rubber.

[0013] In summary, the technical effects and advantages of this utility model are as follows:

[0014] By installing a corrugated tube on the outside of the connector, the cable inserted into the connector will be protected by the corrugated tube. At the same time, the connection between the cable and the corrugated tube will be sealed by the fixing plate and the base plate. The locking block on the side wall of the base plate will cause the sealing ring to move upward along the fixing ring, thereby further sealing the base plate and the fixing plate, thus providing good dust protection for the cable connection. The bristles inside the corrugated tube can further prevent dust from moving from the opening of the corrugated tube towards the connection port. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the cable and base plate in this utility model;

[0017] Figure 3 This is a schematic diagram of the structural connection between the connecting seat and the bellows in this utility model;

[0018] Figure 4 for Figure 3 A magnified view of part A in the middle;

[0019] Figure 5 This is a schematic diagram of the structural connection between the fixing ring and the sealing ring in this utility model.

[0020] In the diagram: 1. Motor body; 2. Cable; 3. Connector; 4. Connecting port; 5. Corrugated pipe; 6. Fixing plate; 7. Base plate; 8. Groove; 9. Fixing ring; 10. Sealing ring; 11. Brush bristles; 12. Locking block; 13. Locking groove; 14. Rotating rod; 15. Pushing block; 16. Telescopic spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] like Figure 1 - Figure 5 As shown, a dustproof structure for a stepper motor includes a motor body 1 and a cable 2. A connecting seat 3 is installed on the side wall of the motor body 1, and a connecting port 4 is opened in the connecting seat 3. The cable 2 is inserted into the connecting port 4. A corrugated tube 5 is fixedly installed on the side wall of the connecting seat 3. The cable 2 is located inside the corrugated tube 5. A plurality of bristles 11 are fixedly installed inside the corrugated tube 5. The plurality of bristles 11 are arranged around the inner wall of the corrugated tube 5. The plurality of bristles 11 all abut against the side wall of the cable 2. The bristles 11 are distributed inside the corrugated tube 5 near the bottom plate 7. The gaps between the bristles 11 are very small, which can prevent dust from moving from the opening of the corrugated tube 5 towards the connecting port 4.

[0023] A fixing plate 6 is installed at the end of the corrugated pipe 5 away from the connecting seat 3. A base plate 7 is fixedly installed on the side wall of the cable 2. The base plate 7 and the fixing plate 6 are fixed together by bolts. The fixing plate 6 and the base plate 7 have the same shape, both being circular. A groove 8 is opened on the side wall of the fixing plate 6 facing the base plate 7. A fixing ring 9 is fixedly installed in the middle of the groove 8. A sealing ring 10 is movably fitted on the outside of the fixing ring 9. The side wall of the sealing ring 10 abuts against the side wall of the base plate 7. The inner diameter of the sealing ring 10 is the same as the outer diameter of the fixing ring 9. The sealing ring 10 is made of rubber. Under normal circumstances, the height of the sealing ring 10 is higher than the height of the fixing ring 9. After the base plate 7 is installed, the sealing ring 10 will remain abutting against the side wall of the base plate 7, thereby preventing dust from entering the interior of the corrugated pipe 5.

[0024] Several locking blocks 12 are fixedly installed on the side wall of the base plate 7 facing the fixing plate 6. The locking blocks 12 facing the center of the cable 2 are all arc-shaped. Several slots 13 are opened on the outside of the groove 8. The locking blocks 12 are inserted into the slots 13 respectively. The insertion of the locking blocks 12 into the slots 13 not only ensures a tighter connection between the base plate 7 and the fixing plate 6, but also the slots 13 can play a positioning role, ensuring that the staff can quickly install the base plate 7.

[0025] A number of rotating rods 14 are rotatably connected to the side wall of the sealing ring 10. Each of the rotating rods 14 is rotatably connected to a pushing block 15 at the end away from the sealing ring 10. The side of the pushing block 15 facing away from the sealing ring 10 has an arc design. When installing the cable 2, the corrugated tube 5 needs to be compressed first so that the cable 2 passes through the bristles 11 and is then inserted into the connection port 4. Then the corrugated tube 5 is stretched to align the base plate 7 with the fixing plate 6 so that the locking block 12 is inserted into the locking slot 13. Due to the arc design of the locking block 12 and the arc design of the pushing block 15, the locking block 12 will squeeze the pushing block 15. The rotating rods 14 on the side wall of the pushing block 15 will push the sealing ring 10 upward so that the sealing ring 10 abuts against the side wall of the base plate 7, thereby further preventing dust from entering the interior of the corrugated tube 5.

[0026] The width of the push block 15 is the same as the width of the slot 13. A telescopic spring 16 is fixedly installed on the side wall of the push block 15 facing the fixed ring 9. The other end of the telescopic spring 16 is fixedly connected to the side wall of the fixed ring 9. The force applied by the telescopic spring 16 to the push block 15 will cause the push block 15 to have a tendency to move away from the fixed ring 9, so that it can be squeezed and pushed by the slot 12.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A dustproof structure for a stepper motor, comprising a motor body (1) and a cable (2), wherein a connecting seat (3) is mounted on the side wall of the motor body (1), and a connecting port (4) is provided in the connecting seat (3), and the cable (2) is inserted into the connecting port (4), characterized in that, A corrugated pipe (5) is fixedly installed on the side wall of the connecting seat (3). The cable (2) is located inside the corrugated pipe (5). A fixing plate (6) is installed at the end of the corrugated pipe (5) away from the connecting seat (3). A base plate (7) is fixedly installed on the side wall of the cable (2). The base plate (7) and the fixing plate (6) are fixed together by bolts. A groove (8) is opened on the side wall of the fixing plate (6) facing the base plate (7). A fixing ring (9) is fixedly installed in the middle of the groove (8). A sealing ring (10) is movably sleeved on the outside of the fixing ring (9). The side wall of the sealing ring (10) abuts against the side wall of the base plate (7).

2. The dustproof structure for a stepper motor according to claim 1, characterized in that, The corrugated pipe (5) is fixedly provided with a number of bristles (11), which surround the inner wall of the corrugated pipe (5) and abut against the side wall of the cable (2).

3. The dustproof structure for a stepper motor according to claim 1, characterized in that, The base plate (7) has several card blocks (12) fixedly installed on the side wall facing the fixed plate (6). The card blocks (12) facing the center of the cable (2) are all arc-shaped. The groove (8) has several card slots (13) opened outside. The card blocks (12) are respectively inserted into the card slots (13).

4. The dustproof structure for a stepper motor according to claim 3, characterized in that, The sealing ring (10) has several rotating rods (14) rotatably connected to its side wall. Each of the rotating rods (14) has a push block (15) rotatably connected to its end away from the sealing ring (10). The push block (15) has an arc-shaped design on the side facing away from the sealing ring (10).

5. A dustproof structure for a stepper motor according to claim 4, characterized in that, The width of the push block (15) is the same as the width of the slot (13). A telescopic spring (16) is fixedly installed on the side wall of the push block (15) facing the fixed ring (9). The other end of the telescopic spring (16) is fixedly connected to the side wall of the fixed ring (9).

6. A dustproof structure for a stepper motor according to claim 4, characterized in that, The inner diameter of the sealing ring (10) is the same as the outer diameter of the fixing ring (9), and the sealing ring (10) is made of rubber.

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