Totally enclosed linear motor sealing device

Abstract

The utility model relates to linear guide rail technical field, concretely is a kind of totally enclosed linear motor sealing device, including linear guide rail, the movable mounting of supporting platform is installed on linear guide rail, the side of linear guide rail is equipped with the drive part for driving supporting platform to move, and drive part and supporting platform are connected with each other by connecting portion, the periphery of drive part is equipped with sealing portion, and sealing portion is used to form sealing closed to drive part;The utility model is by setting linear motor in the sealed area surrounded by steel band and protective cover, and steel band and protective cover can form the closure to linear motor, reach excellent sealing effect, in addition, the surface of steel band is cambered surface, and water or dust will be discharged outside equipment due to gravity and centrifugal force in the movement of steel band, cooperate with the waterproof dustproof of other parts of equipment, reach completely dustproof, waterproof effect.

Description

Technical Field

[0001] This utility model relates to the field of linear guide technology, specifically a fully enclosed linear motor sealing device. Background Technology

[0002] In actual use, due to the influence of the application environment, dust or moisture will inevitably enter the drive source of the linear motion platform, affecting the internal drive source. Generally, linear motion platforms achieve sealing protection by setting a fixed sealing cover around the drive source. However, this sealing setting has the following defects: the fixed sealing cover has a flat surface and there are small gaps between it and the linear platform, resulting in poor sealing effect. Utility Model Content

[0003] To overcome the above deficiencies, this utility model provides a fully enclosed linear motor sealing device.

[0004] The technical solution of this utility model is:

[0005] A fully enclosed linear motor sealing device includes a linear guide rail, on which a support platform is movably mounted. A drive unit for driving the support platform is provided on one side of the linear guide rail. The drive unit and the support platform are connected to each other through a connecting part. A sealing part is provided around the drive unit to form a seal for the drive unit.

[0006] Furthermore, the drive unit includes a linear motor.

[0007] Furthermore, the sealing part includes a plurality of rollers rotatably mounted on the side of the linear guide rail, and a steel strip that can rotate around the rollers is arranged between the rollers.

[0008] Furthermore, both the upper and lower sides of the roller are arc-shaped, with a convex center.

[0009] Furthermore, the steel strip is a flexible, thin steel strip that is compatible with the roller, and the width of the steel strip is greater than the width of the linear motor.

[0010] Furthermore, the sealing part also includes a protective cover, which is located on one side of the steel strip and has its edge bent and embedded in the steel strip. The protective cover and the steel strip are in seamless contact, and the protective cover is fixed to the side of the linear guide rail by screws.

[0011] Furthermore, the two ends of the steel strip do not contact each other and form a notch, which is connected by adhesive. Inner fold plates are cut out at both ends of the steel strip, and the inner fold plates are folded to both sides. The ends of the folded steel strip form fitting holes, and the surface of the inner fold plates is provided with multiple threaded holes.

[0012] Furthermore, the connecting part includes a connector with a wire connected to its end. The bottom end of the connector passes through the fitting hole and extends into the linear motor. The top end of the connector is fixed to the support platform.

[0013] Furthermore, the connecting part also includes a fixing plate fixed to both sides of the support platform. The surface of the fixing plate is provided with insertion holes, and the fixing plate and the inner folding plate are fixed together by bolts.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention places the linear motor within a sealed area enclosed by a steel belt and a protective cover. The steel belt and protective cover form a seal around the linear motor, achieving an excellent sealing effect. In addition, since the surface of the steel belt is curved, any water or dust will be expelled from the equipment due to gravity and centrifugal force during the movement of the steel belt. Combined with the waterproof and dustproof features of other parts of the equipment, a complete dustproof and waterproof effect is achieved. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is an exploded view of the overall structure of this utility model;

[0018] Figure 3 This is a partial exploded view of the structure of this utility model;

[0019] Figure 4 This is one of the schematic diagrams of the inner folding plate, fixing plate, and steel strip structure of this utility model;

[0020] Figure 5 This is the second schematic diagram of the inner folding plate, fixing plate, and steel strip structure of this utility model;

[0021] Figure 6 This utility model Figure 5 Enlarged schematic diagram of the middle section structure;

[0022] Figure 7 This is one of the side views of the roller of this utility model;

[0023] Figure 8 This is a second side view of the roller of this utility model;

[0024] Figure 9 This is a schematic diagram of the connecting component structure of this utility model.

[0025] In the picture:

[0026] Linear guide 1; Linear motor 13;

[0027] Supporting platform 2;

[0028] Fixing plate 5; Insertion hole 51;

[0029] Connector 6; wire 61; connector block 62; rectangular metal block 63;

[0030] 11. Protective cover; 12. Roller; 3. Steel strip; 31. Fitting hole; 32. Notch; 4. Inner fold plate; 41. Threaded hole; Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figure 1-9 The present invention will describe the above technical solution in detail through the following embodiments:

[0033] A fully enclosed linear motor sealing device includes a linear guide rail 1, on which a support platform 2 is movably mounted. A drive unit for driving the support platform 2 to move is provided on one side of the linear guide rail 1. The drive unit and the support platform 2 are connected to each other through a connecting part. A sealing part is provided around the drive unit to form a seal for the drive unit.

[0034] The drive unit includes a linear motor 13, which has two rows of magnets inside, and the connector 6 is located in the area between the two rows of magnets.

[0035] The sealing part includes a plurality of rollers 12 rotatably mounted on the side of the linear guide rail 1, and a steel belt 3 that can rotate around the rollers 12 is arranged between the rollers 12.

[0036] The upper and lower sides of roller 12 are both arc-shaped, with a convex center (as shown in the image). Figure 7 As shown), the steel belt 3 is a flexible thin steel belt that is compatible with the roller 12 and can be bent and deformed. Since the upper and lower sides of the roller 12 are arc-shaped with a convex center, the upper and lower sides of the steel belt 3 also become arc-shaped under the drive of the roller 12, with a convex center. This design allows water droplets adhering to its surface to flow down along the arc-shaped surface without accumulating on the surface of the steel belt 3, thus improving the sealing performance. In this embodiment, the cross-sectional shape of the roller 12 can also be set to have isosceles triangles at both the upper and lower ends and inclined surfaces on both sides (e.g., Figure 8 As shown), under the action of the roller 12, the surface of the steel belt 3 is also divided into a state that is inclined to both sides, so that water can flow out quickly from both sides.

[0037] The width of the steel strip 3 is greater than the width of the linear motor 13, which can form a complete coverage of the linear motor 13 and improve the sealing performance.

[0038] like Figure 2 As shown, the sealing part also includes a protective cover 11, which is located on one side of the steel strip 3 and the edge of the protective cover 11 is bent and embedded in the steel strip 3. The protective cover 11 and the steel strip 3 are in seamless contact, which increases the sealing between them. The protective cover 11 is fixed to the side of the linear guide rail 1 by screws.

[0039] like Figure 4 As shown, the two ends of the steel strip 3 do not contact each other and form a notch 32. The notches 32 are connected by adhesive. Inner folding plates 4 are cut out from both ends of the steel strip 3. The inner folding plates 4 are folded to both sides. The ends of the folded steel strip 3 form fitting holes 31. The surface of the inner folding plate 4 is provided with multiple threaded holes 41.

[0040] The gaps 32 are connected by flexible adhesive. This design ensures that the steel strip 3 has a certain degree of stretchability, thereby reducing the prestress on the surface of the steel strip 3 and improving the service life of the steel strip 3.

[0041] The fitting hole 31 has protruding ends of a certain width on both sides, which can be covered from both sides;

[0042] The connecting part includes a connector 6, the end of which is connected to a wire 61. The wire 61 is connected to an external power source to provide power to the linear motor 13. The bottom end of the connector 6 passes through the fitting hole 31 and extends into the linear motor 13. The top end of the connector 6 is fixed to the support platform 2.

[0043] like Figure 3 and Figure 9 As shown, the connector 6 includes a connecting block 62 and a rectangular metal block 63, which are fixed together. The top of the rectangular metal block 63 is fixed to the support platform 2. The rectangular metal block 63 extends into the space between two rows of magnets inside the linear motor 13. The rectangular metal block 63 has a winding groove inside. The wire 61 passes through the connecting block 62 and extends into the winding groove, forming a winding inside the rectangular metal block 63. The rectangular metal block 63 is a magnetic metal. When the wire 61 is energized, it will form a magnetic field on the rectangular metal block 63. In conjunction with the magnets inside the linear motor 13, linear movement can be achieved. The connecting block 62 can cover the rectangular metal block 63 and seal it inside the steel strip 3.

[0044] like Figure 5 and Figure 6As shown, the connecting part also includes a fixing plate 5 fixed to both sides of the support platform 2. The surface of the fixing plate 5 is provided with a socket 51. The fixing plate 5 and the inner folding plate 4 are fixed together by bolts. The fixing plate 5 and the inner folding plate 4 can be fixed together by passing the bolt through the threaded hole 41 on the inner folding plate 4 and the socket 51 on the fixing plate 5 and cooperating with the nut.

[0045] It should be added that the fixing plate 5 is L-shaped, its horizontal section is fixed to the inner folding plate 4, and its horizontal section is located in the area between the inner folding plate 4 and the steel strip 3. The horizontal section of the fixing plate 5 is in seamless contact with both the inner folding plate 4 and the steel strip 3. The connecting piece 6 is in seamless contact with the wall of the fitting hole 31, and the support platform 2 is in seamless contact with the connecting piece 6, thereby further improving the sealing performance.

[0046] The linear motor 13 is located within the sealed area enclosed by the steel strip 3 and the protective cover 11, and is fixed to the side of the linear guide rail 1 by screws. The steel strip 3 and the protective cover 11 can form a seal around the linear motor 13, achieving an excellent sealing effect. In addition, the surface of the steel strip 3 is curved, so any water or dust will be discharged outside the equipment due to gravity and centrifugal force during the movement of the steel strip 3. Combined with the waterproof and dustproof features of other parts of the equipment (such as the seamless contact between the horizontal section of the fixing plate 5 and the inner folding plate 4 and the steel strip 3, the seamless contact between the connector 6 and the wall of the fitting hole 31, and the seamless contact between the support platform 2 and the connector 6), a complete dustproof and waterproof effect is achieved.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fully enclosed linear motor sealing device, comprising a linear guide rail (1), a support platform (2) movably mounted on the linear guide rail (1), a driving part for driving the support platform (2) to move is provided on one side of the linear guide rail (1), and the driving part and the support platform (2) are connected to each other through a connecting part, characterized in that: The drive unit is provided with a sealing part around its periphery, which is used to seal and enclose the drive unit.

2. The fully enclosed linear motor sealing device as described in claim 1, characterized in that: The drive unit includes a linear motor (13).

3. The fully enclosed linear motor sealing device as described in claim 2, characterized in that: The sealing part includes a plurality of rollers (12) rotatably mounted on the side of the linear guide rail (1), and a steel belt (3) that can rotate around the rollers (12) is arranged between the rollers (12).

4. The fully enclosed linear motor sealing device as described in claim 3, characterized in that: The upper and lower sides of the roller (12) are both arc-shaped, with a convex center.

5. The fully enclosed linear motor sealing device as described in claim 4, characterized in that: The steel strip (3) is a flexible thin steel strip and is compatible with the roller (12). The width of the steel strip (3) is greater than the width of the linear motor (13).

6. The fully enclosed linear motor sealing device as described in claim 5, characterized in that: The sealing part also includes a protective cover (11), which is located on one side of the steel strip (3) and the edge of the protective cover (11) is bent and embedded in the steel strip (3). The protective cover (11) and the steel strip (3) are in seamless contact. The protective cover (11) is fixed to the side of the linear guide (1) by screws.

7. The fully enclosed linear motor sealing device as described in claim 6, characterized in that: The two ends of the steel strip (3) do not contact each other and form a notch (32). The notches (32) are connected by adhesive. Inner fold plates (4) are cut out at both ends of the steel strip (3). The inner fold plates (4) are folded to both sides. The ends of the folded steel strip (3) form fitting holes (31). The surface of the inner fold plates (4) is provided with multiple threaded holes (41).

8. The fully enclosed linear motor sealing device as described in claim 7, characterized in that: The connecting part includes a connector (6), the end of which is connected to a wire (61). The bottom end of the connector (6) passes through the fitting hole (31) and extends into the linear motor (13). The top end of the connector (6) is fixed to the support platform (2).

9. The fully enclosed linear motor sealing device as described in claim 8, characterized in that: The connecting part also includes a fixing plate (5) fixed to both sides of the support platform (2). The surface of the fixing plate (5) is provided with a hole (51). The fixing plate (5) and the inner folding plate (4) are fixed together by bolts.

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