Durable worm gear speed reducer with high connection strength

Abstract

The utility model relates to the technical field of worm gear speed reducers, in particular to a durable worm gear speed reducer with high connection strength, which comprises a box body, a worm and a worm gear, a mounting hole a and a mounting hole b are respectively formed in the box body, the worm penetrates through the mounting hole a to enter the box body, the worm gear penetrates through the mounting hole b to enter the box body, and the worm is in meshed connection with the worm gear; two mounting holes a are formed in the box body, two cover body assemblies a are arranged on the box body, the cover body assemblies a are connected with the two mounting holes a in a matched mode and fix the worm, two cover body assemblies b are arranged in the box body, and the two cover body assemblies b are connected with the two mounting holes b in a matched mode and fix the worm gear. In the utility model, the worm and the worm gear are respectively fixed in the box body through the cover body assembly a and the cover body assembly b, so that the worm and the worm gear are detachable, the speed reducer can be conveniently maintained at regular time, and the service life of the speed reducer is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of worm gear reducers, in particular to a durable worm gear reducer with high connection strength. Background Art

[0002] A worm gear reducer is a power transmission mechanism that converts a motor's high speed into high torque output. Widely used in many industrial applications, it utilizes a gear speed converter to reduce the motor's rotational speed to the desired speed. Its applications range from high-power transmission to small loads and precise angular transmission. In industrial applications, reducers can both reduce speed and increase torque.

[0003] A Chinese patent with authorization announcement number CN220134529U discloses a high-strength and durable worm gear reducer, which relates to the technical field of worm gear reducers. Specifically, a high-strength and durable worm gear reducer includes a gear box, at least two second mounting shafts are horizontally provided at the bottom of the gear box, the two ends of the second mounting shafts are rotatably connected to the gear box, and a second worm wheel is installed on one end of each of the second mounting shafts; a second worm is also coaxially provided on the second mounting shaft, and the top of each second worm is meshed with a first worm wheel, and the first worm wheels are coaxially mounted on the output shaft, and the two ends of the output shaft are respectively rotatably connected to the gear box. When the utility model is in use, the power unit undergoes gear reduction in sequence, and then undergoes two worm gear reductions in sequence, so that the input shaft can drive the second gear to rotate with very little force, and can perform high-strength work and be durable.

[0004] However, the above technical solution has the following defects: the multiple worm wheels and worm transmissions in the above high-strength and durable worm gear reducer make the internal meshing of the reducer loose, and the worm wheels and worms installed inside the gear box are not convenient to disassemble for maintenance, which reduces the service life. Utility Model Content

[0005] The utility model aims to solve the problems existing in the background technology and to provide a durable worm gear reducer with high connection strength.

[0006] The technical solution of the utility model is: a durable worm gear reducer with high connection strength, comprising a housing, a mounting portion, a mounting shaft b, a worm and a worm wheel;

[0007] The box body is provided with two mounting holes a and b respectively. The worm passes through the mounting hole a and enters the box body. The worm wheel passes through the mounting hole b and enters the box body. The worm and the worm wheel are meshed and connected.

[0008] Two cover assemblies a are provided on the box body, and the cover assemblies a are connected with the two mounting holes a to fix the worm. Two cover assemblies b are provided in the box body, and the two cover assemblies b are connected with the two mounting holes b to fix the worm.

[0009] The worm is provided with a central shaft, and two bearings a are provided on the central shaft. The bearings a are symmetrically distributed on the central shaft. The central shaft is rotatably connected to the two cover assemblies a. One end of the central shaft is provided with a mounting shaft a, and the mounting shaft a passes through the cover assembly a on the same side.

[0010] The worm wheel is provided with a through hole, and the mounting shaft b passes through the through hole. The mounting shaft b is provided with a mounting portion, the outer peripheral surface of the mounting portion is provided with a convex block, and the through hole is provided with a groove. The convex block and the groove are matched and connected. The mounting shaft b and the worm wheel are coaxially distributed;

[0011] Two bearings b are provided on the installation shaft b, and both ends of the installation shaft b are rotatably connected to the two cover body components b.

[0012] Preferably, a fixing plate is provided on the worm gear, a bolt a is provided on the fixing plate, the bolt a is threadedly connected to the mounting portion, the fixing plate is an arc-shaped plate, and the shape of the arc-shaped fixing plate corresponds to the shape of the outer peripheral surface of the mounting portion.

[0013] Preferably, the cover assembly a includes a cover a and a bolt b;

[0014] There is a fixing ring a in each mounting hole a, and the cover a is connected to the fixing ring a by multiple bolts b. The cover a is provided with a fixing part a, and two convex rings are provided on the central shaft. The fixing part a on the same side presses the bearing a, and the other end of the bearing a presses the corresponding convex ring;

[0015] The cover assembly b includes a cover b and bolts c;

[0016] The mounting hole b is provided with a fixing ring b, and the cover body b is connected to the fixing ring b by multiple bolts c. The cover body b is provided with a fixing part b at one end close to the worm gear, and two convex rings b are provided on the mounting shaft b. The fixing part b presses one end of the bearing b, and the other end of the bearing b presses the corresponding convex ring b.

[0017] Preferably, a sealing gasket a is provided at one end of the fixing ring a close to the cover body a, and the cover body a and the fixing ring a compress the sealing gasket a;

[0018] A sealing gasket b is provided on one end of the fixing ring b close to the cover body b, and the cover body b and the fixing ring b press the sealing gasket b tightly.

[0019] Preferably, a plurality of heat dissipation plates are provided on the box body and are evenly distributed on the box body.

[0020] Compared with the prior art, the above technical solution of the present invention has the following beneficial technical effects:

[0021] 1. In the present invention, the worm and the worm wheel are fixed inside the box by the cover assembly a and the cover assembly b respectively, so that the worm and the worm wheel can be disassembled, which is convenient for regular maintenance of the reducer and increases the service life of the reducer.

[0022] 2. In the present invention, a central shaft is provided on the worm, and two bearings a are provided on the central shaft. The two bearings a are respectively connected with the two cover assemblies a, so that the worm rotates more smoothly in the box body. A bearing b is provided on the mounting shaft b of the worm wheel. Similarly, the worm wheel rotates more smoothly. At the same time, the mounting shaft b on the worm wheel can also be disassembled, which is convenient for maintenance of the worm wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a three-dimensional diagram of a durable worm gear reducer with high connection strength proposed by the utility model.

[0024] Figure 2 This is a cross-sectional view of a durable worm gear reducer with high connection strength proposed by the utility model.

[0025] Figure 3 This is a schematic diagram of an exploded structure of an embodiment of the present invention.

[0026] Figure 4 This is a schematic diagram of an exploded structure from another perspective of an embodiment of the present invention.

[0027] Figure markings: 1. housing; 2. heat sink; 3. mounting shaft a; 4. center shaft; 5. bearing a; 6. cover a; 7. fixing ring a; 8. fixing part a; 9. bolt b; 10. worm; 11. cover b; 12. fixing part b; 13. mounting shaft b; 14. bearing b; 15. mounting part; 16. fixing plate; 17. bolt a; 18. worm gear; 19. bolt c; 20. fixing ring b; 21. sealing gasket b; 22. sealing gasket a. DETAILED DESCRIPTION

[0028] Example 1

[0029] like Figures 1-4 As shown, the utility model proposes a durable worm gear reducer with high connection strength, comprising a housing 1, a worm 10 and a worm wheel 18;

[0030] The housing 1 is provided with two mounting holes a and a mounting hole b, the two mounting holes a are symmetrically distributed on the housing 1, and the two mounting holes b are symmetrically distributed on the housing 1. The worm 10 passes through the mounting hole a and enters the housing 1, and the worm wheel 18 passes through the mounting hole b and enters the housing 1. The worm 10 is meshed with the worm wheel 18.

[0031] Two cover assemblies a are provided on the box body 1, which are respectively connected with the two mounting holes a and fix the worm 10. Two cover assemblies b are provided in the box body 1, which are connected with the two mounting holes b and fix the worm wheel 18.

[0032] Furthermore, a plurality of heat dissipation plates 2 are provided on the box body 1 and are evenly distributed on the box body 1 to accelerate the discharge of heat from the box body 1 .

[0033] In the present invention, a cover assembly a is first installed, and the worm 10 is placed into the box body 1 through the mounting hole a. One end of the worm 10 is first rotatably connected with the cover assembly a, and then the other end cover assembly a is installed, and the other end of the worm 10 is fixed to fix the worm 10 in the box body 1; first, a cover assembly b is installed on the mounting hole b, and then the worm wheel 18 is installed into the box body 1 through the other end mounting hole b, so that the worm wheel 18 and the worm 10 are meshed and connected, and the second cover assembly b is installed. The two cover assemblies b can fix the position of the worm wheel 18; in the present invention, the worm 10 and the worm wheel 18 are fixed to the inside of the box body 1 respectively by the cover assembly a and the cover assembly b, so that the worm 10 and the worm wheel 18 are detachable, which is convenient for regular maintenance of the reducer and increases the service life of the reducer.

[0034] Example 2

[0035] like Figure 1-Figure 2 As shown, the utility model proposes a durable worm gear reducer with high connection strength. Compared with the first embodiment, this embodiment further includes a mounting portion 15 and a mounting shaft b13;

[0036] The worm 10 is provided with a central shaft 4, on which two bearings a5 are provided. The bearings a5 are symmetrically distributed on the central shaft 4. The central shaft 4 is rotatably connected to the two cover assemblies a. One end of the central shaft 4 is provided with a mounting shaft a3, which passes through the cover assembly a on the same side.

[0037] The worm wheel 18 is provided with a through hole, through which the mounting shaft b13 passes. The mounting shaft b13 is provided with a mounting portion 15. The outer circumference of the mounting portion 15 is provided with a protrusion, and the through hole is provided with a groove. The protrusion and the groove are engaged with each other. The mounting shaft b13 is coaxially distributed with the worm wheel 18.

[0038] Two bearings b14 are provided on the installation shaft b13, and both ends of the installation shaft b13 are rotatably connected to the two cover body components b.

[0039] Furthermore, a fixing plate 16 is provided on the worm gear 18 , and a bolt a17 is provided on the fixing plate 16 . The bolt a17 is threadedly connected to the mounting portion 15 . The fixing plate 16 is an arc-shaped plate, and its shape corresponds to the shape of the outer peripheral surface of the mounting portion 15 .

[0040] In this embodiment, a central shaft 4 is provided on the worm 10, and two bearings a5 are provided on the central shaft 4. The two bearings a5 are respectively connected to the two cover body assemblies a, so that the worm 10 can rotate more smoothly in the box body 1. A bearing b14 is provided on the mounting shaft b13 of the worm wheel 18. Similarly, the worm wheel 18 rotates more smoothly. At the same time, the mounting shaft b13 on the worm wheel 18 can also be removed, which is convenient for maintenance of the worm wheel 18.

[0041] Example 3

[0042] like Figure 1-Figure 2 As shown, the utility model proposes a durable worm gear reducer with high connection strength. Compared with the first embodiment, the cover assembly a in this embodiment includes a cover a6 and a bolt b9;

[0043] A fixing ring a7 is provided in each mounting hole a, and a cover a6 is connected to the fixing ring a7 via a plurality of bolts b9. A fixing portion a8 is provided on the cover a6, and two convex rings are provided on the central shaft 4. The fixing portion a8 on the same side presses against the bearing a5, and the other end of the bearing a5 presses against the corresponding convex ring.

[0044] The cover assembly b includes a cover b11 and bolts c19;

[0045] The mounting hole b is provided with a fixing ring b20, and the cover body b11 is connected to the fixing ring b20 by multiple bolts c19. The end of the cover body b11 close to the worm gear 18 is provided with a fixing part b12, and two convex rings b are provided on the mounting shaft b13. The fixing part b12 presses one end of the bearing b14, and the other end of the bearing b14 presses the corresponding convex ring b. One end of the mounting shaft b13 passes through the cover body b11 on the same side.

[0046] Furthermore, a sealing gasket a22 is provided at one end of the fixing ring a7 close to the cover a6, and the cover a6 and the fixing ring a7 compress the sealing gasket a22;

[0047] A sealing gasket b21 is provided on one end of the fixing ring b20 close to the cover b11, and the cover b11 and the fixing ring b20 compress the sealing gasket b21;

[0048] Sealing rings are provided inside the cover a6 and the cover b11, and the sealing rings press the outer circumference of the installation shaft a3 and the outer circumference of the installation shaft b13 respectively.

[0049] In this embodiment, the cover a6 can be removed from the fixing ring a7, so that the internal worm 10 and other components can be removed from the box body 1. During installation, the central axis 4 on the worm 10 is rotatably connected with the fixing parts a8 on the two cover bodies a6. Multiple parts are detachably connected, making it easy to disassemble and maintain the reducer.

[0050] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A durable worm gear reducer with high connection strength, characterized in that, It comprises a housing (1), a worm (10), a mounting portion (15), a mounting shaft b (13) and a worm wheel (18); The housing (1) is provided with two mounting holes a and a mounting hole b, respectively. The worm (10) passes through the mounting hole a and enters the housing (1), and the worm wheel (18) passes through the mounting hole b and enters the housing (1). The worm (10) and the worm wheel (18) are meshed and connected. Two cover assemblies a are provided on the box body (1), the cover assemblies a are connected in cooperation with the two mounting holes a and fix the worm (10), and two cover assemblies b are provided in the box body (1), the two cover assemblies b are connected in cooperation with the two mounting holes b and fix the worm wheel (18); A central shaft (4) is provided on the worm (10), and two bearings a (5) are provided on the central shaft (4), and the bearings a (5) are symmetrically distributed on the central shaft (4). The central shaft (4) is rotatably connected to the two cover body assemblies a, and a mounting shaft a (3) is provided at one end of the central shaft (4), and the mounting shaft a (3) passes through the cover body assembly a on the same side; The worm wheel (18) is provided with a through hole, the mounting shaft b (13) passes through the through hole, the mounting shaft b (13) is provided with a mounting portion (15), the outer peripheral surface of the mounting portion (15) is provided with a convex block, the through hole is provided with a groove, the convex block and the groove are matched and connected, and the mounting shaft b (13) and the worm wheel (18) are coaxially distributed; Two bearings b (14) are provided on the installation shaft b (13), and the two ends of the installation shaft b (13) are rotatably connected with the two cover body components b.

2. A durable worm gear reducer with high connection strength according to claim 1, characterized in that: A fixing plate (16) is provided on the worm wheel (18), a bolt a (17) is provided on the fixing plate (16), the bolt a (17) is threadedly connected to the mounting portion (15), the fixing plate (16) is an arc-shaped plate, and the shape of the arc-shaped fixing plate (16) corresponds to the shape of the outer peripheral surface of the mounting portion (15).

3. A durable worm gear reducer with high connection strength according to claim 1, characterized in that: The cover assembly a comprises a cover a (6) and a bolt b (9); A fixing ring a (7) is provided in each mounting hole a, and the cover body a (6) is connected to the fixing ring a (7) by a plurality of bolts b (9). A fixing portion a (8) is provided on the cover body a (6), and two convex rings are provided on the central shaft (4). The fixing portion a (8) on the same side presses the bearing a (5), and the other end of the bearing a (5) presses the corresponding convex ring. The cover assembly b includes a cover b (11) and a bolt c (19); The mounting hole b is provided with a fixing ring b (20), and the cover body b (11) is connected to the fixing ring b (20) by a plurality of bolts c (19). The cover body b (11) is provided with a fixing portion b (12) at one end close to the worm gear (18). Two convex rings b are provided on the mounting shaft b (13). The fixing portion b (12) presses one end of the bearing b (14), and the other end of the bearing b (14) presses the corresponding convex ring b.

4. A durable worm gear reducer with high connection strength according to claim 3, characterized in that: A sealing gasket a (22) is provided at one end of the fixing ring a (7) close to the cover body a (6), and the cover body a (6) and the fixing ring a (7) press the sealing gasket a (22); A sealing gasket b (21) is provided at one end of the fixing ring b (20) close to the cover body b (11), and the cover body b (11) and the fixing ring b (20) press the sealing gasket b (21) tightly.

5. A durable worm gear reducer with high connection strength according to claim 1, characterized in that: A plurality of heat dissipation plates (2) are provided on the box body (1) and are evenly distributed on the box body (1).

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