Reduction shaft assembly convenient to adjust

Abstract

The utility model discloses a reduction shaft assembly convenient to adjust, which belongs to the field of reduction shaft assemblies and comprises a lower shell, an upper shell, a worm gear and a worm, a group of symmetrical bearing seats are fixedly connected between the lower shell and the upper shell, two ends of the worm gear are fixedly connected with output shafts respectively, and the output shafts are fixedly connected with the bearing seats in a penetrating manner. The arranged adjusting mechanism is used in cooperation with the upper speed reduction shaft assembly, a rotary knob is rotated to drive a screw rod to rotate through a rotating rod, a jacking plate moves upwards along the screw rod through a screw hole, an adjusting plate is pushed upwards through a jacking rod, the adjusting plate drives a worm to move upwards, and it is ensured that the worm and a worm wheel can be further engaged together; therefore, when a gap is generated between the worm and the worm gear due to abrasion, the worm and the worm gear can be fully and tightly meshed together by adjusting the displacement of the worm in the vertical direction, and the stability of the speed reduction shaft assembly and the overall structure during use is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of deceleration shaft components, in particular to a deceleration shaft component which is easy to adjust. Background Art

[0002] The reduction shaft assembly is a key component within a reducer, integrating core transmission elements such as the output shaft, gears, bearings, and possibly seals. Its primary function is to convert high-speed input rotational power into low-speed, high-torque output power through the meshing action of the gears, thereby meeting the power output requirements of mechanical equipment under various operating conditions. The design and optimization of the reduction shaft assembly is crucial for improving the overall performance, stability, and lifespan of the reducer.

[0003] In the prior art, during the actual use of the reduction shaft assembly, the worm wheel and the worm will cause wear due to various factors after long-term use. After the worm wheel and the worm are worn, a gap will be generated between the meshing teeth of the worm wheel and the worm, and they cannot be fully engaged together. However, since the positions between the worm wheel and the worm are relatively fixed, and the worm wheel and the worm cannot be adjusted to make them further engage, the stability of the overall structure of the reducer will be affected. Utility Model Content

[0004] The main purpose of the utility model is to provide a deceleration shaft assembly that is easy to adjust, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] The worm gear is connected with the gear train by the upper and lower ends of the worm gear, and the worm gear is connected with the gear train by the upper and lower ends of the worm gear.

[0007] Preferably, side openings are respectively provided on the left and right side walls of the lower shell, and sliding grooves are respectively provided on the inner side walls of the side openings, and a connecting opening is provided on the inner bottom surface of the side openings.

[0008] Preferably, the connecting plate is fixedly installed between the left and right symmetrical machine bases, and a rotation hole is opened on the top surface of the connecting plate.

[0009] Preferably, a rotating rod is fixedly mounted on the bottom end of the screw rod, and the rotating rod is movably mounted in the rotating hole, and a knob is fixedly mounted on the bottom end of the rotating rod.

[0010] Preferably, a screw hole is opened on the top surface of the jacking plate, and the jacking plate is threadedly connected to the screw rod through the screw hole. A group of left-right symmetrical jacking rods are fixedly installed on the top surface of the jacking plate, and the jacking rods are inserted into the connecting port.

[0011] Preferably, the adjustment plate is fixedly mounted on the top surface of the lifting rod and is located in the side opening, and slide bars are fixedly mounted on both side walls of the adjustment plate, and the slide bars are movably mounted in the slide grooves. A mounting hole is also provided on the side wall of the adjustment plate, and a rotating bearing is fixedly mounted in the mounting hole, and the input shaft and the rotating bearing are interlaced and fixedly mounted together.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In the present invention, an adjustment mechanism is provided in conjunction with the use of the reduction shaft assembly, and the rotating knob drives the screw to rotate through the rotating rod, so that the lifting plate moves upward along the screw through the screw hole, and the adjusting plate is pushed upward by the lifting rod, so that the adjusting plate drives the worm to move upward to ensure that the worm and the worm wheel can be further engaged together, so that when a gap is generated between the worm and the worm wheel due to wear, the worm and the worm wheel can be fully and tightly engaged together by adjusting the displacement of the worm in the vertical direction, thereby ensuring the stability of the reduction shaft assembly and the overall structure during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the overall structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the structural disassembly of the adjustment mechanism of the present utility model.

[0017] In the figure: 1. Lower housing; 2. Upper housing; 3. Machine base; 4. Bearing seat; 5. Worm gear; 6. Output shaft; 7. Worm; 8. Input shaft; 9. Side opening; 10. Slide groove; 11. Connecting opening; 12. Connecting plate; 13. Rotating hole; 14. Adjusting plate; 15. Mounting hole; 16. Rotating bearing; 17. Slide bar; 18. Screw; 19. Rotating rod; 20. Knob; 21. Lifting plate; 22. Screw hole; 23. Lifting rod; 24. Adjusting mechanism. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] like Figure 1 - Figure 3 As shown, a deceleration shaft assembly that is easy to adjust includes a lower housing 1, an upper housing 2, a worm gear 5 and a worm 7. A group of symmetrical bearing seats 4 are fixedly connected between the lower housing 1 and the upper housing 2. Output shafts 6 are fixedly connected to both ends of the worm gear 5, and the output shaft 6 is fixedly connected to the bearing seats 4 through insertion. The worm 7 is movably connected to the lower housing 1 through input shafts 8 at both ends and meshes with the bottom of the worm gear 5. A group of bilaterally symmetrical machine bases 3 are also fixedly connected to the bottom surface of the lower housing 1. After the input shaft 8 drives the worm 7 to rotate, the worm 7 will drive the worm gear 5 to rotate under the meshing action. The output shafts 6 at both ends of the worm gear 5 will rotate in the bearing seats 4 installed between the lower housing 1 and the upper housing 2, and the output shaft 6 at one end of the worm gear 5 outputs power to the outside to achieve the purpose of deceleration.

[0020] An adjusting mechanism 24 is provided below the worm 7, and the adjusting mechanism 24 includes a connecting plate 12, a screw 18, a lifting plate 21, a lifting rod 23 and an adjusting plate 14. The connecting plate 12 is fixedly connected between the machine bases 3, and the screw 18 is movably connected to the top surface of the connecting plate 12 through the rotating rod 19 at the bottom end. The lifting plate 21 is movably connected to the screw 18 through the screw hole 22 on the top surface, and the lifting rod 23 is fixedly connected to both sides of the top surface of the lifting plate 21. The adjusting plate 14 is fixedly connected to the top surface of the lifting rod 23, and the input shaft 8 is fixedly connected to the rotating bearing 16 in the side wall of the adjusting plate 14.

[0021] like Figure 2 As shown, side openings 9 are respectively opened on the left and right side walls of the lower shell 1, and slide grooves 10 are respectively opened on the inner side walls of the side openings 9. A connecting opening 11 is opened on the inner bottom surface of the side openings 9. The side openings 9 opened on the lower shell 1 facilitate the movement of the adjustment plate 14 inside, and the slide grooves 10 enable the slide bar 17 to achieve a sliding operation, while the connecting opening 11 facilitates the lifting rod 23 to push the adjustment plate 14 inside the side opening 9;

[0022] like Figure 2As shown, the connecting plate 12 is fixedly installed between the left and right symmetrical machine bases 3, and a rotation hole 13 is opened on the top surface of the connecting plate 12. The rotation hole 13 opened on the top surface of the connecting plate 12 installed between the machine bases 3 is used to cooperate with the rotating rod 19 to realize the rotation operation;

[0023] like Figure 3 As shown, a rotating rod 19 is fixedly mounted on the bottom end of the screw rod 18, and the rotating rod 19 is movably mounted in the rotating hole 13. A knob 20 is fixedly mounted on the bottom end of the rotating rod 19. When adjusting, the knob 20 is manually rotated to drive the rotating rod 19 to rotate in the rotating hole 13, so that the rotating rod 19 drives the screw rod 18 to rotate;

[0024] like Figure 3 As shown, a screw hole 22 is opened on the top surface of the jacking plate 21, and the jacking plate 21 is threadedly connected to the screw rod 18 through the screw hole 22. A group of bilaterally symmetrical jacking rods 23 are fixedly installed on the top surface of the jacking plate 21, and the jacking rods 23 are inserted into the connecting port 11. Driven by the rotation of the screw rod 18, the jacking plate 21 will move upward along the screw rod 18 through the screw hole 22, and push the jacking rods 23 through the connecting port 11 into the side port 9 during the movement.

[0025] like Figure 3 As shown, the adjusting plate 14 is fixedly mounted on the top surface of the lifting rod 23 and is located in the side opening 9, and slide bars 17 are fixedly mounted on the two side walls of the adjusting plate 14 respectively, and the slide bars 17 are movably mounted in the slide groove 10. A mounting hole 15 is also provided on the side wall of the adjusting plate 14, and a rotating bearing 16 is fixedly mounted in the hole of the mounting hole 15. The input shaft 8 and the rotating bearing 16 are interlaced and fixedly mounted together. After the lifting rod 23 enters the side opening 9 through the connecting port 11, it will push the adjusting plate 14 upward to move the adjusting plate 14 in the side opening 9, and the slide bars 17 mounted on both sides of the adjusting plate 14 will slide in the slide groove 10. In this way, the worm 7 movably connected between the adjusting plates 14 through the input shafts 8 at both ends can be pushed upward, so that the worm 7 and the worm wheel 5 are fully and tightly engaged with each other to solve the problem that the worm wheel 5 and the worm 7 cannot fully engage after wear.

[0026] It should be noted that the present invention is a deceleration shaft assembly that is easy to adjust. When the worm wheel 5 and the worm 7 in the deceleration shaft assembly are worn after long-term use and affect the operational stability of the overall structure, the knob 20 installed on the top surface of the connecting plate 12 between the machine bases 3 can be manually rotated. The knob 20 will drive the rotating rod 19 to rotate in the rotating hole 13 opened on the top surface of the connecting plate 12, and the rotating rod 19 will drive the screw 18 to rotate, so that the lifting plate 21 moves upward along the screw 18 through the screw hole 22 opened on the top surface. In the process of the lifting plate 21 moving upward, it will push the lifting rods 23 installed on both sides of the top surface of the lifting plate 21 in the connecting port 11 upward, and the lifting plate 21 will be lifted. The rod 23 will pass through the connecting port 11 to push the adjusting plate 14 upward, so that the adjusting plate 14 will move synchronously in the side port 9 opened on the side wall of the lower shell 1. When moving, the slide bars 17 installed on both sides of the adjusting plate 14 will slide in the slide grooves 10 opened on the inner side walls of the side port 9. The input shafts 8 at both ends of the worm 7 are fixedly installed together with the rotating bearings 16 installed in the mounting holes 15 opened on the side walls of the adjusting plate 14. Therefore, as the adjusting plate 14 moves upward in the side port 9, the worm 7 will be driven to move upward synchronously, and the worm 7 and the worm wheel 5 will be further fully and tightly engaged together, thereby ensuring the stability of the reduction shaft assembly and the overall structure during use.

[0027] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, various improvements may be made to the present invention and its components may be replaced with equivalents, or some of its technical features may be replaced with equivalents without departing from the scope of the present invention. Anything within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A deceleration shaft assembly that is easy to adjust, comprising a lower housing (1), an upper housing (2), a worm wheel (5) and a worm (7), wherein a group of symmetrical bearing seats (4) are fixedly connected between the lower housing (1) and the upper housing (2), an output shaft (6) is fixedly connected to both ends of the worm wheel (5), and the output shaft (6) and the bearing seat (4) are interlaced and fixedly connected together, the worm (7) is movably connected to the lower housing (1) through input shafts (8) at both ends and meshed with the bottom of the worm wheel (5), and a group of bilaterally symmetrical machine bases (3) are also fixedly connected to the bottom surface of the lower housing (1), characterized in that: An adjusting mechanism (24) is provided below the worm (7), and the adjusting mechanism (24) comprises a connecting plate (12), a screw (18), a lifting plate (21), a lifting rod (23) and an adjusting plate (14); the connecting plate (12) is fixedly connected between the machine bases (3), and the screw (18) is movably connected to the top surface of the connecting plate (12) through a rotating rod (19) at the bottom end; the lifting plate (21) is movably connected to the screw (18) through a screw hole (22) on the top surface, and the lifting rod (23) is fixedly connected to both sides of the top surface of the lifting plate (21); the adjusting plate (14) is fixedly connected to the top surface of the lifting rod (23), and the input shaft (8) is fixedly connected to the rotating bearing (16) in the side wall of the adjusting plate (14).

2. The adjustable reduction shaft assembly according to claim 1, characterized in that: Side openings (9) are respectively provided on the left and right side walls of the lower shell (1), and sliding grooves (10) are respectively provided on the inner side walls of the side openings (9), and a connecting opening (11) is provided on the inner bottom surface of the side openings (9).

3. The adjustable reduction shaft assembly according to claim 2, characterized in that: The connecting plate (12) is fixedly installed between the left and right symmetrical machine bases (3), and a rotation hole (13) is provided on the top surface of the connecting plate (12).

4. The easily adjustable reduction shaft assembly according to claim 3, characterized in that: A rotating rod (19) is fixedly mounted on the bottom end of the screw rod (18), and the rotating rod (19) is movably mounted in the rotating hole (13). A knob (20) is fixedly mounted on the bottom end of the rotating rod (19).

5. The adjustable reduction shaft assembly according to claim 4, characterized in that: The top surface of the jacking plate (21) is provided with a screw hole (22), and the jacking plate (21) is threadedly connected to the screw rod (18) through the screw hole (22). A group of left-right symmetrical jacking rods (23) are fixedly installed on the top surface of the jacking plate (21), and the jacking rods (23) are inserted into the connecting port (11).

6. The easily adjustable reduction shaft assembly according to claim 5, characterized in that: The adjusting plate (14) is fixedly mounted on the top surface of the lifting rod (23) and is located in the side opening (9), and slide bars (17) are fixedly mounted on both side walls of the adjusting plate (14), and the slide bars (17) are movably mounted in the slide groove (10). The side wall of the adjusting plate (14) is also provided with a mounting hole (15), and a rotating bearing (16) is fixedly mounted in the mounting hole (15), and the input shaft (8) and the rotating bearing (16) are interlaced and fixedly mounted together.

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