Press machine worm shaft with heat dissipation mechanism
By designing an inclined annular groove and a three-dimensional heat dissipation channel on the worm shaft of the press, the problem of low heat dissipation efficiency of the worm shaft is solved, achieving efficient heat dissipation and stable operation, and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO QUANXUN PRECISION MASCH CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-05-19
AI Technical Summary
Traditional press worm shafts have low heat dissipation efficiency, which makes the worm material prone to local high temperature and thermal deformation, affecting transmission accuracy and service life.
A press worm shaft with a heat dissipation mechanism was designed. The heat dissipation channel is formed by the inclined annular groove on the inner wall of the worm and the outer worm teeth. The three-dimensional heat dissipation channel is formed by combining multiple sets of annular array slots, heat dissipation strips, insertion holes and insertion rods. Heat is diffused by heat dissipation rings and ring plates. The heat dissipation components are fixed by high thermal conductivity materials and threaded connections.
It significantly improves heat dissipation efficiency, quickly dissipates heat from the worm gear meshing point, reduces thermal deformation, ensures stable equipment operation, and is easy to install and has low maintenance costs.
Smart Images
Figure CN224260858U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of press worm shafts, and more particularly to a press worm shaft with a heat dissipation mechanism. Background Technology
[0002] In the transmission system of a press, the worm shaft is the core component for power transmission. Its operational stability directly affects the machining accuracy and service life of the equipment. When the worm shaft of a traditional press is working, the meshing friction between the worm and the worm wheel, the rotation of the bearing, etc. will generate a lot of heat. However, the existing heat dissipation structures generally have the following shortcomings.
[0003] In traditional designs, the heat of the worm shaft is mainly dissipated slowly through the shaft surface, lacking a targeted heat conduction channel. This makes it difficult to quickly dissipate the local high temperature at the meshing point of the worm teeth, which can easily cause thermal deformation of the worm material and affect the transmission accuracy. To address this issue, a press worm shaft with a heat dissipation mechanism is proposed. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a press worm shaft with a heat dissipation mechanism, which aims to improve the problems of "low heat dissipation efficiency of worm shaft and easy occurrence of local high temperature and thermal deformation" in the prior art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a press worm shaft with a heat dissipation mechanism, comprising a shaft body, a worm shaft integrally formed and fixedly connected to the outer wall of the middle part of the shaft body, heat dissipation components provided on the left and right sides of the outer wall of the shaft body near the worm shaft, the heat dissipation components comprising two sets of heat dissipation retaining rings, heat dissipation ring plates fixedly connected to the outer sides of the two sets of heat dissipation retaining rings, the two sets of heat dissipation retaining rings sleeved on the outer wall of the worm shaft near the left and right sides, the two sets of heat dissipation ring plates sleeved on the outer wall of the shaft body, a retaining groove is formed between the inner wall of the worm shaft and the outer wall of the shaft body, a heat dissipation strip is inserted into the inner wall of the retaining groove, insertion holes are formed on the left and right sides of the heat dissipation strip, insertion rods are fixedly connected to the inner surfaces of the two sets of heat dissipation ring plates, the insertion rods are inserted into the inner walls of the insertion holes, and a circular groove is formed on the inner wall of the worm shaft.
[0006] As a further description of the above technical solution:
[0007] The slots penetrate the left and right sides of the worm and extend outwards onto the outer wall of the shaft.
[0008] As a further description of the above technical solution:
[0009] The annular groove is set at an angle.
[0010] As a further description of the above technical solution:
[0011] The card slots, holes, and rods are arranged in multiple sets in a circular array, and the circular grooves are connected to the multiple sets of card slots.
[0012] As a further description of the above technical solution:
[0013] The insertion rod and the insertion hole are adapted to each other and are both cylindrical in shape.
[0014] As a further description of the above technical solution:
[0015] The worm gear is provided with mounting components near the outer walls on the left and right sides. The mounting components include mounting bolts, mounting screw holes two and mounting screw holes one. Mounting screw holes one is opened on the outer wall of the worm gear near the front surface on the left and right sides, and mounting screw holes two are opened through the outer wall of the heat dissipation retaining ring near the front surface.
[0016] As a further description of the above technical solution:
[0017] The mounting bolt passes through and is threaded into the second mounting screw hole, and the mounting bolt passes through the second mounting screw hole and is threaded into the first mounting screw hole.
[0018] As a further description of the above technical solution:
[0019] The top of the mounting bolt has a hexagonal slot.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, the inclined annular groove on the inner wall of the worm gear is consistent with the helix angle of the external worm teeth, which can conduct the heat generated by the meshing of the worm teeth to the slot. The slots, heat dissipation strips, insertion holes and insertion rods arranged in multiple annular arrays form a three-dimensional heat dissipation channel, which allows the heat to be quickly conducted from the inside of the worm gear to the heat dissipation retaining ring and heat dissipation ring plate on the surface of the shaft, and then diffused into the air through the heat dissipation retaining ring and heat dissipation ring plate, which greatly improves the heat dissipation efficiency.
[0022] 2. In this utility model, the heat dissipation retaining ring and heat dissipation ring are pre-positioned by the cylindrical cooperation of the insert rod and the insertion hole, and then the fixing is quickly completed by the threaded connection of the mounting bolt and the mounting screw hole. The entire installation process does not require professional tools, and the installation is convenient. When damaged, the corresponding heat dissipation retaining ring, heat dissipation ring or heat dissipation strip can be directly disassembled for replacement, reducing maintenance costs. Attached Figure Description
[0023] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;
[0024] Figure 2 This is a three-dimensional structural disassembly diagram of the heat dissipation retaining ring and worm gear in this utility model;
[0025] Figure 3 This is a three-dimensional structural breakdown of the heat dissipation strip, slot, and ring in this utility model, as well as a three-dimensional cross-sectional view of the heat dissipation ring and the heat dissipation ring plate.
[0026] Figure 4 This is a cross-sectional view of the three-dimensional structure of the worm gear in this utility model, and a schematic diagram showing the disassembled three-dimensional structure of the heat dissipation strip and the slot.
[0027] Legend:
[0028] 1. Shaft; 2. Heat dissipation assembly; 3. Mounting assembly; 4. Worm gear; 21. Heat dissipation retaining ring; 22. Heat dissipation ring; 23. Heat dissipation strip; 24. Insertion hole; 25. Slot; 26. Circular groove; 27. Insert rod; 31. Mounting bolt; 32. Hexagonal slot; 33. Mounting screw hole one; 34. Mounting screw hole two. Detailed Implementation
[0029] 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.
[0030] Reference Figure 1 , Figure 3 and Figure 4 This utility model provides an embodiment of a press worm shaft with a heat dissipation mechanism, including a shaft body 1. A worm 4 is integrally formed and fixedly connected to the outer wall of the middle part of the shaft body 1. The shaft body 1 and the worm 4 are integrally formed into a worm shaft. Heat dissipation components 2 with heat dissipation effect are provided on the left and right sides of the outer wall of the shaft body 1 near the worm 4. The heat dissipation components 2 include two sets of heat dissipation retaining rings 21 that can transfer heat and make the heat come into contact with the air more quickly. Heat dissipation rings 22 are fixedly connected to the outer sides of the two sets of heat dissipation retaining rings 21, which cooperate with multiple sets of insert rods 27 to insert into the insertion holes 24 and connect the heat dissipation strips 23. Ring 21 is sleeved on the outer wall of worm 4 near the left and right sides. Two sets of heat dissipation rings 22 are sleeved on the outer wall of shaft 1. A slot 25 for installing heat dissipation strip 23 is opened between the inner wall of worm 4 and the outer wall of shaft 1. The heat dissipation strip 23 that quickly transfers internal heat to heat dissipation ring 21 is inserted into the inner wall of the slot 25. Insertion holes 24 are opened on both the left and right sides of the heat dissipation strip 23. Insert rods 27 are fixedly connected to the inner surface of the two sets of heat dissipation rings 22. The ends of the insert rods 27 are rounded to facilitate installation and insertion. The insert rods 27 are inserted into the inner wall of the insertion holes 24 to position the heat dissipation strip 23.
[0031] Furthermore, the inner wall of the worm 4 is provided with an annular groove 26 that connects to the slot 25 to quickly conduct heat to the heat dissipation strip 23 on the inner wall of the slot 25. The slot 25 passes through the left and right sides of the worm 4 and extends outward to the outer wall of the shaft 1. The annular groove 26 is inclined, and its inclined shape is the same as that of the external worm teeth of the worm 4 and is located at the external worm teeth. This allows for faster conduction of the heat generated by the meshing of the worm teeth to the heat dissipation strip 23, further improving the heat dissipation effect. Multiple sets of slots 25, holes 24, and rods 27 are provided, and the annular groove 26 is... The array is arranged in a three-dimensional heat dissipation channel network, with the annular groove 26 connected to multiple sets of slots 25, which greatly improves heat dissipation efficiency. The plug rod 27 is compatible with the plug hole 24 and is cylindrical in shape. The cylindrical shape facilitates installation and insertion and provides a positioning connection effect. The heat dissipation retaining ring 21, heat dissipation ring 22, heat dissipation strip 23 and plug rod 27 are all made of 6063-T6 aluminum alloy by CNC machining. It has the characteristics of low density and high thermal conductivity, which can quickly conduct heat. It is also lightweight and can reduce the inertial load when the worm shaft rotates.
[0032] Reference Figure 1 and Figure 2 The worm gear 4 has mounting components 3 near its left and right outer walls. These components include mounting bolts 31, mounting screw holes 34 (second and third), and mounting screw holes 33 (first). After inserting the heat dissipation strip 23 into the slot 25, the heat dissipation retaining ring 21 is fitted onto the outer wall of the worm gear 4, and the heat dissipation ring 22 is fitted onto the outer wall of the shaft 1. The heat dissipation ring 22 then drives the insertion rod 27 into the corresponding insertion hole 24 for positioning. When the heat dissipation ring 22 contacts the right side surface of the worm gear 4, the mounting screw holes 34 and 33 are aligned. The heat dissipation retaining ring 21 and the worm gear 4 can then be connected and fixed using the mounting bolts 31. This also secures multiple sets of heat dissipation strips 23, facilitating installation. For subsequent heat dissipation, mounting screw hole 33 is opened on the outer wall of the worm gear 4 near the left and right sides of the front surface. Mounting screw hole 34 is opened through the outer wall of the heat dissipation retainer 21 near the front surface. Mounting bolt 31 passes through mounting screw hole 34 and is threadedly connected. Mounting bolt 31 passes through mounting screw hole 34 and is threadedly connected to mounting screw hole 33. Mounting bolt 31 is made of high-strength aluminum alloy and the surface is anodized, which has good corrosion resistance. The thread adopts a fine thread design to increase the connection friction and prevent loosening. The top of mounting bolt 31 has a hexagonal slot 32. The size of the hexagonal slot 32 matches the standard hexagonal wrench for easy installation and disassembly.
[0033] Working Principle: During operation, when the press is running, the worm 4 meshes with the worm wheel to transmit power. A large amount of frictional heat is generated during this meshing process. Simultaneously, the rotation of the shaft 1 also generates heat due to bearing friction. Because the inclination angle of the annular groove 26 is consistent with the helix angle of the external worm gear and is located directly below the worm gear, the heat generated by the worm gear meshing can be quickly conducted along the annular groove 26 to the connected slot 25. The slot 25 penetrates the worm 4 and extends to the outer wall of the shaft 1. Its inner wall is tightly fitted with a heat dissipation strip 23 made of 6063-T6 aluminum alloy. The high thermal conductivity of this material allows the heat in the slot 25 to be quickly transferred to the heat dissipation strip 23, and then dissipated through the insertion holes 24 on both sides of the heat dissipation strip 23. The insert rod 27 inside the heat dissipation ring 22 is positioned and positioned. The end of the insert rod 27 is rounded for easy insertion. After insertion, it fits tightly with the insertion hole 24 to ensure that the heat dissipation strip 23 is stably fixed. The heat dissipation ring 22 is sleeved on the outer wall of the shaft 1, which increases the contact area with the air and enhances the heat dissipation effect. Two sets of heat dissipation retaining rings 21 are sleeved on the outer wall of the worm gear 4. The contact area between the inner wall of the retaining ring and the worm gear 4 quickly conducts the heat from the heat dissipation strip 23 to itself. By being fixedly connected with the heat dissipation ring 22, the heat is further diffused to the surface of the heat dissipation ring 22, which accelerates the dissipation of heat into the air. In actual processing, coolant can be sprayed onto the heat dissipation retaining rings 21 to further improve the heat dissipation effect. During installation, first insert the heat dissipation strip 23 into the slot 25, then fit the heat dissipation retaining ring 21 onto the outer wall of the worm 4 and the heat dissipation ring 22 onto the outer wall of the shaft 1, so that the insertion rod 27 is inserted into the corresponding insertion hole 24 for initial positioning. When the heat dissipation ring 22 contacts the right side surface of the worm 4, the second mounting screw hole 34 on the heat dissipation retaining ring 21 is aligned with the first mounting screw hole 33 on the worm 4. The high-strength aluminum alloy mounting bolt 31 passes through the second mounting screw hole 34 and the first mounting screw hole 33 and is threaded together. The fine thread design provides greater friction to prevent loosening, and the anodized bolt surface enhances corrosion resistance. After the bolt is installed, the heat dissipation retaining ring 21 is firmly connected to the worm 4, and multiple sets of heat dissipation strips 23 are fixed at the same time to ensure that the heat dissipation component 2 can stably play a heat dissipation role during the operation of the press, and finally achieve efficient dissipation of the heat generated by the worm shaft, maintaining the stable operation of the press.
[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A press worm shaft with a heat dissipation mechanism, comprising a shaft body (1), wherein a worm (4) is integrally formed and fixedly connected to the outer wall of the middle portion of the shaft body (1), characterized in that: Heat dissipation components (2) are provided on both the left and right sides of the outer wall of the shaft (1) near the worm (4); The heat dissipation assembly (2) includes two sets of heat dissipation retaining rings (21). Heat dissipation rings (22) are fixedly connected to the outer sides of the two sets of heat dissipation retaining rings (21). The two sets of heat dissipation retaining rings (21) are sleeved on the outer wall of the worm (4) near the left and right sides. The two sets of heat dissipation rings (22) are sleeved on the outer wall of the shaft (1). A groove (25) is provided between the inner wall of the worm (4) and the outer wall of the shaft (1). A heat dissipation strip (23) is inserted into the inner wall of the groove (25). Insertion holes (24) are provided on the left and right sides of the heat dissipation strip (23). Insert rods (27) are fixedly connected to the inner surface of the two sets of heat dissipation rings (22). Insert rods (27) are inserted into the inner wall of the insertion holes (24). A circular groove (26) is provided on the inner wall of the worm (4).
2. A press worm shaft with a heat dissipation mechanism according to claim 1, characterized in that: The slot (25) passes through the left and right sides of the worm (4) and extends outward on the outer wall of the shaft (1).
3. A press worm shaft with a heat dissipation mechanism according to claim 1, characterized in that: The annular groove (26) is set in an inclined shape.
4. A press worm shaft with a heat dissipation mechanism according to claim 1, characterized in that: The card slot (25), the insertion hole (24), and the insertion rod (27) are provided in multiple sets and arranged in a ring array, and the annular groove (26) is connected to the multiple sets of card slots (25).
5. A press worm shaft with a heat dissipation mechanism according to claim 1, characterized in that: The insertion rod (27) and the insertion hole (24) are adapted to each other and are both cylindrical in shape.
6. A press worm shaft with a heat dissipation mechanism according to claim 1, characterized in that: The worm (4) is provided with an installation component (3) near the outer wall of the left and right sides. The installation component (3) includes an installation bolt (31), a second installation screw hole (34) and a first installation screw hole (33). The first installation screw hole (33) is opened on the outer wall of the worm (4) near the front surface of the left and right sides. The second installation screw hole (34) is opened through the outer wall of the heat dissipation retaining ring (21) near the front surface.
7. A press worm shaft with a heat dissipation mechanism according to claim 6, characterized in that: The mounting bolt (31) passes through and is threadedly connected to the second mounting screw hole (34), and the mounting bolt (31) passes through the second mounting screw hole (34) and is threadedly connected to the first mounting screw hole (33).
8. A press worm shaft with a heat dissipation mechanism according to claim 6, characterized in that: The top end of the mounting bolt (31) is provided with a hexagonal slot (32).