Improved worm heat dissipation structure

Abstract

The utility model discloses an improved worm heat dissipation structure which comprises a box body, a worm gear and a worm which are meshed with each other are embedded in an inner cavity of the box body, the two ends of the worm are connected with a bearing and a rotor respectively, an installation groove is formed between the worm and the box body, a heat conduction piece which is tightly close to the worm is arranged in the installation groove, and the worm and the worm are connected with a motor. The heat-conducting fin is connected with the box body through screws or mucilage glue, and a plurality of heat-conducting protrusions are arranged on the side, close to the worm, of the heat-conducting fin. The worm gear and worm transmission system is scientific and reasonable in structural design, heat conduction and dissipation are enhanced by arranging the heat conduction pieces between the worm and the box body and matching the installation grooves, the heat conduction protrusions, the heat dissipation fins, the flow guide grooves and other structures, the temperature of the worm is effectively reduced, the stability of the worm gear and worm transmission system is improved, and the service life of the worm gear and worm transmission system is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to worm and gear connecting equipment technical field, concretely is a kind of improve worm heat dissipation structure. BACKGROUND

[0002] The transmission of worm and gear can reduce speed and increase torque in motor structure, and is widely used in small motor. But worm and gear transmission efficiency is not high, heat is very serious, and the problem of heat dissipation needs to be considered in structure design. The existing motor structure with worm and gear needs to increase the distance between box and worm to ensure that the bearing can be assembled from top to bottom, because there is a ball bearing at the end of the shaft. Because the distance between worm and gear is close to the distance of the box, heat can only be conducted through air, and the efficiency is very low. The structure design of the surrounding heat dissipation of worm and gear needs to be improved. Therefore, we propose a worm heat dissipation structure. UTILITY MODEL CONTENTS

[0003] The utility model aims at providing a worm heat dissipation structure to solve the problems raised in the background.

[0004] To achieve the above object, the utility model provides the following technical scheme: a worm heat dissipation structure, comprising a box, the inner cavity of the box is embedded with intermeshing worm and gear, the two ends of the worm are respectively connected with bearing and rotor, the worm and the box are provided with mounting groove, the mounting groove is provided with heat conduction sheet close to the worm, the heat conduction sheet is connected with the box by screw or adhesive, and the side of the heat conduction sheet close to the worm is provided with a plurality of heat conduction protrusions.

[0005] In the above scheme, the bearing is installed in the bearing limiting seat.

[0006] In the above scheme, the heat conduction sheet is embedded in the mounting groove and fixedly connected with the box by interference assembly.

[0007] In the above scheme, the outer side wall of the box is provided with a plurality of heat dissipation fins, the heat dissipation fins are integrally formed with the box, and correspond to the position of the heat conduction sheet.

[0008] In the above scheme, when the heat conduction sheet is connected by adhesive, the adhesive is heat-conducting silicone.

[0009] In the above scheme, the heat conduction sheet is "L" type copper sheet, and its thickness is 0.5-2mm.

[0010] In the above scheme, the box is provided with a flow guide groove corresponding to the position below the heat conduction sheet, and the flow guide groove extends along the length direction of the box.

[0011] Compared with the prior art, the helical gear heat dissipation structure has the advantages that the structure is simple and reasonable, and has strong practicability, the heat conduction and dissipation are enhanced by arranging the heat conduction sheet between the helical gear and the box body and cooperating with the installation groove, the heat conduction protrusion, the heat dissipation fin and the flow guide groove, the helical gear temperature is effectively reduced, and the stability and service life of the worm gear transmission system are improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is an internal structure schematic view of the utility model.

[0013] Fig. 2 It is a structure sectional view schematic view of the utility model.

[0014] Fig. 3 It is a structure schematic view of the heat conduction sheet of the utility model.

[0015] In the drawing: 1, box body 2, worm gear 3, helical gear 4, bearing 5, rotor 6, bearing limiting seat 7, heat conduction sheet 8, heat conduction protrusion 9, installation groove 10, screw 11, flow guide groove 12, heat dissipation fin. DETAILED DESCRIPTION

[0016] The technical scheme in the embodiments of the utility model will be apparently and completely described below in conjunction with the drawings of the embodiments of the utility model, and obviously, the described embodiments are only a part of the embodiments of the utility model, instead of all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0017] Please refer to Figs. 1-3 The utility model provides a kind of technical scheme: a kind of improved helical gear heat dissipation structure, including box body 1, the box body 1 inner chamber is embedded with intermeshing worm gear 2 and helical gear 3, the both ends of the helical gear 3 are connected with bearing 4 and rotor 5 respectively, installation groove 9 is arranged between the helical gear 3 and the box body 1, heat conduction sheet 7 is arranged in the installation groove 9 and is in close proximity with the helical gear 3, the heat conduction sheet 7 is connected with the box body 1 by screw 10 or adhesive, and the side of the heat conduction sheet 7 close to the helical gear 3 is provided with a plurality of heat conduction protrusions 8.

[0018] By arranging heat conduction sheet 7 between helical gear 3 and box body 1, the heat conduction efficiency is greatly improved by using the good heat conduction performance of metal compared with the traditional air conduction heat transfer mode; the heat conduction sheet 7 is connected with the box body 1 by screw 10 or adhesive, to ensure the stability of the connection; and the heat conduction protrusion 8 increases the heat exchange contact area of the heat conduction sheet 7, further enhances the heat conduction effect, thereby effectively reducing the high temperature generated when the helical gear 3 works, improving the stability and service life of the worm gear transmission system.

[0019] In the above scheme, the bearing 4 is installed in the bearing limiting seat 6. The bearing limiting seat 6 plays the role of accurate limiting and stable supporting for the bearing 4, ensures that the bearing 4 remains stable during rotation, reduces the additional friction and heat generation caused by the shaking of the bearing, and also guarantees the accuracy and reliability of the transmission of the worm 3.

[0020] In the above scheme, the heat-conducting sheet 7 is embedded in the installation slot 9 and fixedly connected with the box body 1 through interference assembly. The interference assembly makes the heat-conducting sheet 7 tightly fit with the installation slot 9, enhances the firmness of the connection between the heat-conducting sheet 7 and the box body 1, and avoids the loosening or displacement of the heat-conducting sheet 7 during the operation of the equipment. At the same time, the tight fit also helps to improve the efficiency of heat conduction from the heat-conducting sheet 7 to the box body 1, and guarantees the stability of the heat dissipation effect.

[0021] In the above scheme, a plurality of heat dissipation fins 12 are arranged on the outer side wall of the box body 1, and the heat dissipation fins 12 are integrally formed with the box body 1 and correspond to the positions of the heat-conducting sheet 7. The heat dissipation fins 12 increase the heat dissipation area of the box body 1, and when the heat-conducting sheet 7 conducts the heat of the worm 3 to the box body 1, the heat dissipation fins 12 can quickly dissipate the heat to the air. Corresponding to the positions of the heat-conducting sheet 7, the heat can be more directly and efficiently transferred to the heat dissipation fins 12, the heat dissipation speed is accelerated, the internal temperature of the box body 1 is reduced, and the normal operation of the worm and gear transmission system is further guaranteed.

[0022] In the above scheme, when the heat-conducting sheet 7 is connected by adhesive, the adhesive is heat-conducting silicone. The heat-conducting silicone can firmly paste the heat-conducting sheet 7 on the box body 1, and also has good heat-conducting performance, which makes up for the thermal resistance that may be generated by the adhesive layer, so that the heat can be more smoothly conducted from the heat-conducting sheet 7 to the box body 1 through the adhesive layer, while ensuring the connection strength, further improving the overall heat dissipation performance.

[0023] In the above scheme, the heat-conducting sheet 7 is a copper sheet with an "L" shape, and the thickness is 0.5-2mm. The "L" shape design can better fit the space structure between the worm 3 and the box body 1, and increase the contact area with the worm 3 as much as possible without affecting the installation and operation of other components. The copper sheet is used as the material of the heat-conducting sheet 7, which takes advantage of the excellent heat-conducting performance of copper to ensure efficient heat dissipation. The thickness range of 0.5-2mm can ensure that the heat-conducting sheet 7 has sufficient strength and rigidity to prevent deformation during the operation of the equipment, and also does not occupy too much space due to excessive thickness, which affects the overall layout and assembly of the equipment.

[0024] In the above scheme, the box 1 is provided with a flow guide groove 11 corresponding to the position below the heat conduction sheet 7, and the flow guide groove 11 extends along the length direction of the box 1. The flow guide groove 11 can guide the air to flow on the surface of the box 1, form air convection, and accelerate heat dissipation. When the air flows through the flow guide groove 11, the heat on the surface of the box 1 is taken away, especially the heat conducted from the heat conduction sheet 7 to the box 1 is quickly taken away, further improving the heat dissipation efficiency, reducing the temperature of the box 1 and the internal components, and ensuring the stable operation of the equipment.

[0025] Working principle:

[0026] The improved worm heat dissipation structure, in the structure, the worm wheel 2 and the worm 3 are engaged with each other, the worm 3 rotates under the driving of the rotor 5, realizes the function of speed reduction and torque increase. However, due to the low efficiency of the worm gear transmission, a large amount of heat will be generated during work. At this time, the heat conduction sheet 7 closely adjacent to the worm 3 plays a key role, which adopts copper material with good heat conduction, and increases the contact area through the heat conduction protrusion 8, quickly absorbs the heat generated by the worm 3. The heat conduction sheet 7 is stably connected with the box 1 by means of screws 10, adhesive or interference assembly, and quickly conducts the heat to the box 1. The integrally formed heat dissipation fins 12 on the outer wall of the box 1 corresponding to the position of the heat conduction sheet 7 increase the heat dissipation area and accelerate the heat dissipation to the outside air. At the same time, the flow guide groove 11 on the box 1 guides the air flow, forms convection, further improves the heat dissipation speed, thereby effectively reduces the temperature of the worm 3 and the surrounding components, and ensures the stable operation of the worm gear transmission system.

[0027] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A structure for improving heat dissipation of a worm gear, comprising a housing (1), characterized in that: The inner cavity of the housing (1) is fitted with a worm gear (2) and a worm (3) that mesh with each other. The two ends of the worm (3) are respectively connected to a bearing (4) and a rotor (5). An installation groove (9) is provided between the worm (3) and the housing (1). A heat-conducting plate (7) is provided in the installation groove (9) and closely close to the worm (3). The heat-conducting plate (7) is connected to the housing (1) by screws (10) or adhesive. Several heat-conducting protrusions (8) are provided on the side of the heat-conducting plate (7) close to the worm (3).

2. The improved worm gear heat dissipation structure according to claim 1, characterized in that: The bearing (4) is installed in the bearing limiting seat (6).

3. The improved worm gear heat dissipation structure according to claim 1, characterized in that: The heat-conducting sheet (7) is embedded in the mounting groove (9) and fixedly connected to the housing (1) by interference fit.

4. The improved worm gear heat dissipation structure according to claim 1, characterized in that: Multiple heat dissipation fins (12) are provided on the outer side wall of the box (1). The heat dissipation fins (12) are integrally formed with the box (1) and correspond to the position of the heat-conducting plate (7).

5. The improved worm gear heat dissipation structure according to claim 1, characterized in that: When the heat-conducting sheet (7) is connected by adhesive, the adhesive is thermally conductive silicone.

6. The improved worm gear heat dissipation structure according to claim 1, characterized in that: The heat-conducting sheet (7) is an "L"-shaped copper sheet with a thickness of 0.5-2mm.

7. The improved worm gear heat dissipation structure according to claim 1, characterized in that: A flow channel (11) is provided on the box body (1) at the position below the heat-conducting plate (7), and the flow channel (11) extends along the length direction of the box body (1).

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