Tightening mechanism with speed reduction structure

Abstract

The utility model discloses a tightening mechanism with a speed reducing structure, which is characterized in that a gear box is provided with a first cavity, a bevel gear wheel and a bevel worm are accommodated in the first cavity, and the bevel gear wheel is matched with the bevel worm; the motor is connected with the gearbox; the small synchronous pulley is matched with the output end of the motor; the large synchronous pulley is connected with the small synchronous pulley through a synchronous belt; one end of the speed-reducing structure is matched with the large synchronous pulley, and the other end of the speed-reducing structure is matched with the spiroid; and through the arrangement of the speed reduction structure, the speed reduction effect is achieved, and therefore the effect of reducing abrasion of the synchronous belt is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of processing equipment, and particularly relates to a tightening mechanism provided with a deceleration structure. Background Art

[0002] The tightening mechanism realizes the tightening effect of the tightening wheel through the cooperation of a bevel worm gear and a bevel worm. In the prior art, the cooperation between the motor and the bevel worm adopts a synchronous belt drive, that is, a small synchronous belt pulley is matched with the output end of the motor, a large synchronous belt pulley is matched with the bevel worm, and the small synchronous belt pulley and the large synchronous belt pulley are driven by a synchronous belt. The problem with this structure is that due to the excessive torque of the bevel worm gear, the synchronous belt wears too fast during operation. Therefore, how to reduce the wear of the synchronous belt has become an urgent problem to be solved by those skilled in the art. Summary of the Utility Model

[0003] Therefore, the technical problem to be solved by the utility model is how to reduce the wear of the synchronous belt. For this purpose, a tightening mechanism provided with a deceleration structure includes:

[0004] A gearbox, the gearbox is provided with a first chamber, the first chamber accommodates a bevel worm gear and a bevel worm, and the bevel worm gear is matched with the bevel worm;

[0005] A motor, the motor is connected to the gearbox;

[0006] A small synchronous belt pulley, the small synchronous belt pulley is matched with the output end of the motor;

[0007] A large synchronous belt pulley, the large synchronous belt pulley is connected to the small synchronous belt pulley by a synchronous belt;

[0008] A deceleration structure, one end of the deceleration structure is matched with the large synchronous belt pulley, and the other end of the deceleration structure is matched with the bevel worm.

[0009] The deceleration structure includes a small transmission gear and a large transmission gear, the small transmission gear is connected to the large synchronous belt pulley, the large transmission gear is connected to the bevel worm, and the small transmission gear meshes with the large transmission gear.

[0010] The gearbox is provided with a second chamber, the first chamber communicates with the second chamber, and the deceleration structure is accommodated in the second chamber.

[0011] The small transmission gear includes a first linkage shaft, one end of the first linkage shaft passes through the second chamber and is connected to the large synchronous belt pulley, and a first bearing is sleeved on the first linkage shaft.

[0012] The first chamber accommodates a second bearing, and the bevel worm passes through the second bearing and is connected to the large transmission gear.

[0013] The gearbox includes a first component, a second component, and a cover plate. The first component and the second component cooperate to form the first chamber, the second component and the cover plate cooperate to form the second chamber, and the motor is connected to the second component.

[0014] The small transmission gear and the large synchronous pulley have a double gear structure.

[0015] The central axis of the output end of the motor is arranged parallel to the central axis of the cone worm.

[0016] The technical solution of the present utility model has the following advantages:

[0017] 1. A tightening mechanism provided with a deceleration structure according to the present utility model forms a deceleration effect through the setting of the deceleration structure, thereby reducing the wear of the synchronous belt.

[0018] 2. A tightening mechanism provided with a deceleration structure according to the present utility model forms a deceleration effect by meshing the small transmission gear with the large transmission gear. Here, the transmission ratio between the large transmission gear and the small transmission gear can be adjusted according to actual needs. In addition, deceleration can also be formed through other deceleration structures, such as a planetary structure.

[0019] 3. A tightening mechanism provided with a deceleration structure according to the present utility model forms an accommodating and protecting effect for the deceleration structure through the setting of the second chamber, making the installation more convenient.

[0020] 4. A tightening mechanism provided with a deceleration structure according to the present utility model forms a matching effect through the setting of the first bearing, preventing the first linkage shaft from rubbing against the side wall of the second chamber and affecting the transmission effect of the small transmission gear.

[0021] 5. A tightening mechanism provided with a deceleration structure according to the present utility model improves the cooperation between the cone worm and the large transmission gear by the second bearing, reducing frictional losses.

[0022] 6. A tightening mechanism provided with a deceleration structure according to the present utility model forms a rational layout by the cooperation of the first component, the second component, and the cover plate to form the first chamber and the second chamber, making the installation more convenient.

[0023] 7. A tightening mechanism provided with a deceleration structure according to the present utility model makes the installation simpler and more convenient due to the double gear structure.

[0024] 8. A tightening mechanism provided with a deceleration structure according to the present utility model has a side-mounted structure for the motor, which can save space in the vertical direction and reduce the overall volume. Description of the Drawings

[0025] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0026] Figure 1 Structural schematic diagram of a tightening mechanism with a deceleration structure provided by the present invention;

[0027] Figure 2 Side view of a tightening mechanism with a deceleration structure provided by the present invention;

[0028] Figure 3 Cross-sectional view of a tightening mechanism with a deceleration structure provided by the present invention;

[0029] Figure 4 Cross-sectional view of a tightening mechanism with a deceleration structure provided by the present invention;

[0030] Figure 5 Cross-sectional view of a tightening mechanism with a deceleration structure provided by the present invention.

[0031] Explanation of reference numerals:

[0032] 11. Gearbox; 12. Bevel worm gear; 13. Bevel worm; 14. Motor; 15. Small synchronous pulley; 16. Large synchronous pulley; 17. Small transmission gear; 18. Large transmission gear; 19. First bearing; 20. Second bearing; 21. Third bearing; 22. First component; 23. Second component; 24. Cover plate; 25. Synchronous belt; 111. First chamber; 112. Second chamber; 171. First linkage shaft. Specific embodiments

[0033] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the drawings. Obviously, the described embodiments are some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0034] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0035] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0036] In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0037] Embodiment 1

[0038] This embodiment provides a tightening mechanism provided with a deceleration structure. As shown in the attached Figures 1-5 figures, it includes:

[0039] A gearbox 11. The gearbox 11 is provided with a first chamber 111. The first chamber 111 accommodates a bevel worm gear 12 and a bevel worm 13. The bevel worm gear 12 and the bevel worm 13 are engaged. Here, the other end of the bevel worm gear 12 is provided with a connecting rod, and the connecting rod cooperates with a tightening wheel to form a tightening effect. This structure is not related to this embodiment, so it is not shown in the drawings.

[0040] A motor 14. The motor 14 is connected to the gearbox 11. The motor 14 is fixed to the gearbox 11. The motor 14 is a driving source. Here, the power, structure, and size of the motor 14 can all be adjusted according to actual needs.

[0041] A small synchronous pulley 15. The small synchronous pulley 15 cooperates with the output end of the motor 14. When the motor 14 operates, the output end of the motor 14 drives the small synchronous pulley 15 to rotate.

[0042] Large synchronous pulley 16, the large synchronous pulley 16 is connected to the small synchronous pulley 15 by a synchronous belt 25. It should be noted here that the diameter of the large synchronous pulley 16 is larger than that of the small synchronous pulley 15, and the transmission ratio between the small synchronous pulley 15 and the large synchronous pulley 16 can be adjusted according to actual needs. The synchronous belt 25 can specifically be a belt or a synchronous belt 25 made of other materials.

[0043] Reduction structure, one end of the reduction structure is fitted with the large synchronous pulley 16, and the other end of the reduction structure is fitted with the tapered worm 13. Through the setting of the reduction structure, a reduction effect is formed, thereby achieving the effect of reducing the wear of the synchronous belt 25. In this embodiment, when the motor 14 operates, the output end of the motor 14 drives the small synchronous pulley 15 to rotate. Through the transmission of the synchronous belt 25, the large synchronous pulley 16 also moves accordingly. Then, through the reduction structure, the tapered worm 13 is driven to rotate, and finally the tightening pulley is driven to rotate through the tapered worm gear 12.

[0044] Specifically, as shown in the appendix Figures 1-5 As shown, the reduction structure includes a small transmission gear 17 and a large transmission gear 18. The small transmission gear 17 is connected to the large synchronous pulley 16, the large transmission gear 18 is connected to the tapered worm 13, and the small transmission gear 17 meshes with the large transmission gear 18. It should be noted that the diameter of the large transmission gear 18 is larger than that of the small transmission gear 17, and the transmission ratio between the large transmission gear 18 and the small transmission gear 17 can be adjusted according to actual needs. Through the meshing of the small transmission gear 17 and the large transmission gear 18, a reduction effect is formed. In addition, a reduction can also be formed through other reduction structures, such as a planetary structure; or the reduction structure is formed by the mutual cooperation of multiple gears.

[0045] Specifically, as shown in the appendix Figure 4 As shown, the gearbox 11 is provided with a second chamber 112, the first chamber 111 communicates with the second chamber 112, and the reduction structure is accommodated in the second chamber 112. The setting of the second chamber 112 forms an accommodation and protection effect for the reduction structure, making the installation more convenient.

[0046] Specifically, as shown in the appendix Figure 4 As shown, the small transmission gear 17 includes a first linkage shaft 171. One end of the first linkage shaft 171 passes through the second chamber 112 and is connected to the large synchronous pulley 16, and a first bearing 19 is sleeved on the first linkage shaft 171. The setting of the first bearing 19 forms a matching effect, preventing the first linkage shaft 171 from rubbing against the side wall of the second chamber 112 and affecting the transmission effect of the small transmission gear 17. In this embodiment, the small transmission gear 17 is located in the second chamber 112, and the small transmission gear 17 rotates relative to the second chamber 112. Therefore, a first bearing 19 is sleeved on the end of the first linkage shaft 171 close to the large synchronous pulley 16, and a first bearing 19 is also sleeved on the other end of the first linkage shaft 171. Through the cooperation of the two first bearings 19 before and after, the frictional loss is reduced.

[0047] Specifically, as shown in the appendix Figures 3-4 , the first chamber 111 houses the second bearing 20, and the tapered worm 13 passes through the second bearing 20 and is connected to the large transmission gear 18. The second bearing 20 improves the fit between the tapered worm 13 and the large transmission gear 18, reducing frictional losses. In addition, the first chamber 111 also houses the third bearing 21, and the third bearing 21 cooperates with the end of the tapered worm 13 away from the large transmission gear 18.

[0048] Specifically, as shown in the appendix Figures 1-5 , the gearbox 11 includes a first component 22, a second component 23, and a cover plate 24. The first component 22 and the second component 23 cooperate to form the first chamber 111, and the second component 23 and the cover plate 24 cooperate to form the second chamber 112. The part of the second component 23 that extends beyond the cover plate 24 is connected to the motor 14, and the motor 14 and the second component 23 form a fixing effect. Here, the fixing method can be bolt fixing. The fixing method between the first component 22 and the second component 23 can be bolt fixing, and the fixing method between the second component 23 and the cover plate 24 can also be bolt fixing. In addition, the fixing method can also be snap fitting or ultrasonic welding, etc. The first component 22, the second component 23, and the cover plate 24 cooperate to form the first chamber 111 and the second chamber 112, forming a rational layout and making the installation more convenient.

[0049] Specifically, the small transmission gear 17 and the large synchronous belt pulley 16 have a double-tooth structure. The double-tooth structure makes the installation simpler and more convenient. The small transmission gear 17 and the large synchronous belt pulley 16 can also be two independent components, and the linkage between them is formed through the first linkage shaft 171. Those skilled in the art can also adjust according to actual needs.

[0050] Specifically, the central axis of the output end of the motor 14 is parallel to the central axis of the tapered worm 13. The motor 14 has a side-mounted structure, which can save space in the vertical direction and reduce the overall volume.

[0051] Obviously, the above embodiments are only examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A tightening mechanism provided with a deceleration structure, characterized in that, Comprising: A gearbox (11), the gearbox (11) being provided with a first chamber (111), the first chamber (111) accommodating a bevel worm gear (12) and a bevel worm (13), the bevel worm gear (12) cooperating with the bevel worm (13); A motor (14), the motor (14) being connected to the gearbox (11); A small synchronous pulley (15), the small synchronous pulley (15) cooperating with the output end of the motor (14); A large synchronous pulley (16), the large synchronous pulley (16) being connected to the small synchronous pulley (15) by a synchronous belt (25); A speed reduction structure, one end of the speed reduction structure cooperating with the large synchronous pulley (16), and the other end of the speed reduction structure cooperating with the bevel worm (13).

2. The tightening mechanism provided with a deceleration structure according to claim 1, wherein, The speed reduction structure includes a small transmission gear (17) and a large transmission gear (18), the small transmission gear (17) being connected to the large synchronous pulley (16), the large transmission gear (18) being connected to the bevel worm (13), and the small transmission gear (17) meshing with the large transmission gear (18).

3. The tightening mechanism provided with a deceleration structure according to claim 2, characterized in that, The gearbox (11) is provided with a second chamber (112), the first chamber (111) communicating with the second chamber (112), and the speed reduction structure being accommodated in the second chamber (112).

4. The tightening mechanism provided with a deceleration structure according to claim 3, characterized in that, The small transmission gear (17) includes a first linkage shaft (171), one end of the first linkage shaft (171) passing through the second chamber (112) to be connected to the large synchronous pulley (16), and a first bearing (19) being sleeved on the first linkage shaft (171).

5. The tightening mechanism provided with a deceleration structure according to claim 3, characterized in that, The first chamber (111) accommodates a second bearing (20), and the bevel worm (13) passes through the second bearing (20) to be connected to the large transmission gear (18).

6. The tightening mechanism provided with a deceleration structure according to claim 3, characterized in that, The gearbox (11) includes a first component (22), a second component (23) and a cover plate (24), the first component (22) and the second component (23) cooperating to form the first chamber (111), the second component (23) and the cover plate (24) cooperating to form the second chamber (112), and the motor (14) being connected to the second component (23).

7. The tightening mechanism provided with a deceleration structure according to claim 2, wherein, The small transmission gear (17) and the large synchronous pulley (16) are of a double-tooth structure.

8. The tightening mechanism provided with a deceleration structure according to claim 1, characterized in that, The central axis of the output end of the motor (14) is arranged parallel to the central axis of the bevel worm (13).

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