Axial limiting anti-backlash gear

Abstract

The utility model relates to the technical field of gears, in particular to an axial limiting anti-backlash gear which mainly comprises a fixed driven gear, a protruding block arranged on the fixed driven gear, an adjusting driven gear arranged on the protruding block and an installation assembly arranged on the fixed driven gear. The mounting assembly comprises a connecting ring arranged on the fixed driven gear, an arc-shaped plate is arranged on the connecting ring, a square hole is formed in the fixed driven gear, and a limiting plate is arranged on the adjusting driven gear. According to the axial limiting anti-backlash gear, by rotating a connecting ring, an arc-shaped plate is moved away from the upper portion of a square hole, a limiting plate is clamped into the square hole, so that an arc-shaped groove and the arc-shaped plate are located on the same horizontal line, a worker loosens the connecting ring at the moment, the connecting ring can be driven to rotate through the elastic force of an elastic piece, and the anti-backlash effect is achieved. And the arc-shaped plate slides into the arc-shaped groove, so that the adjusting driven gear can be quickly mounted on the fixed driven gear, and the mounting difficulty can be effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of gear technology, specifically to an axially limiting and backlash-eliminating gear. Background Technology

[0002] In a gear transmission system, theoretically a pair of gears should have no backlash when meshing. However, in reality, due to factors such as machining and installation errors and temperature changes, a certain tooth backlash must be left between the gears to prevent jamming. However, this backlash will cause the transmission system to generate idle stroke when reversing, affecting the precise positioning of the mechanism.

[0003] Chinese patent CN211550454U discloses a gear that can eliminate meshing backlash. This utility model uses a fixed driven gear and an adjusted driven gear with a 0.5-degree misalignment. The fixed driven gear and the adjusted driven gear abut against both sides of the teeth of the driving gear, which avoids accelerated wear of the tooth surface and thus effectively eliminates the backlash between the gears.

[0004] The above-mentioned equipment can effectively eliminate meshing gaps during use. However, during installation, the device uses four sets of ball screws to connect the adjusting driven gear and the fixed driven gear. Workers need to use special tools to install the ball screws, which not only takes a long time to install but also increases the difficulty of installation. This needs to be improved. Utility Model Content

[0005] The purpose of this invention is to provide an axially limiting and backlash-eliminating gear to solve the problem mentioned in the background art that adjusting the driven gear and fixing the driven gear are difficult to install.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An axially limiting and backlash-eliminating gear includes: a fixed driven gear with a protrusion on it and an adjusting driven gear on the protrusion; a mounting assembly on the fixed driven gear, comprising a connecting ring on the fixed driven gear with an arc-shaped plate, a square hole on the fixed driven gear, and a limiting plate on the adjusting driven gear; the mounting assembly is used for mounting the fixed driven gear and the adjusting driven gear; and a fixing assembly on the connecting ring, comprising a through hole on the connecting ring with a threaded post on the through hole, the fixing assembly being used for fixing the connecting ring.

[0008] Preferably, the mounting assembly also includes a limiting plate movably disposed within the square hole, and the square hole extends through the connecting groove.

[0009] Preferably, the limiting plate has an arc-shaped groove inside, and the arc-shaped groove penetrates the limiting plate, with the arc-shaped plate movably disposed within the arc-shaped groove.

[0010] Preferably, the fixed passive gear has a connecting groove inside, a fixing block is provided inside the connecting groove, an elastic element is provided on one side of the fixing block, and an arc-shaped plate is provided at one end of the elastic element.

[0011] Preferably, a connecting block is provided on one side of the arc-shaped plate, and the connecting block is located on the connecting ring.

[0012] Preferably, an outer ring is provided on the outside of the connecting ring, and an arc groove is provided on the fixed driven gear corresponding to the outer ring, with the outer ring movably disposed within the arc groove.

[0013] Preferably, the fixing component further includes a mounting plate disposed inside the through hole, a threaded post disposed on the mounting plate and penetrating the mounting plate, and a handle provided at one end of the threaded post.

[0014] Preferably, the driven gear is provided with four sets of limiting plates, and the top of one set of limiting plates is provided with a threaded hole corresponding to the threaded post.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] By rotating the connecting ring, the arc plate is moved away from the top of the square hole. By inserting the limiting plate into the square hole, the arc groove and the arc plate are aligned at the same level. At this point, the operator releases the connecting ring. The elastic force of the elastic element causes the connecting ring to rotate, allowing the arc plate to slide into the arc groove. This allows the adjusting driven gear to be quickly installed onto the fixed driven gear, thus effectively reducing the installation difficulty.

[0017] After the driven gear is installed and adjusted, the threaded post is rotated and inserted into the threaded hole, thus fixing the connecting ring in one go. This prevents the connecting ring from rotating during the use of the fixed driven gear and avoids affecting its operation. Attached Figure Description

[0018] Figure 1 This is a front-view three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a partial cross-sectional three-dimensional structural schematic diagram of the present invention;

[0020] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0021] Figure 4 This is a three-dimensional structural diagram of the mounting components of this utility model;

[0022] Figure 5This is a three-dimensional structural diagram of the mounting component of this utility model from another perspective;

[0023] Figure 6 This utility model Figure 5 Enlarged schematic diagram of the structure at point B.

[0024] In the diagram: 1. Fixed driven gear; 2. Adjusting driven gear; 3. Connecting ring; 4. External ring; 5. Arc plate; 6. Connecting block; 7. Elastic element; 8. Fixing block; 9. Limiting plate; 10. Arc groove; 11. Threaded hole; 12. Connecting groove; 13. Arc groove; 14. Square hole; 15. Through hole; 16. Mounting plate; 17. Handle; 18. Threaded post; 19. Protrusion. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0027] like Figure 1 - Figure 6 As shown, this application provides an axially limiting backlash-eliminating gear, including: a fixed driven gear 1, a protrusion 19 provided on the fixed driven gear 1, an adjusting driven gear 2 provided on the protrusion 19, and further including: an installation assembly provided on the fixed driven gear 1, the installation assembly including a connecting ring 3 provided on the fixed driven gear 1, an arc-shaped plate 5 provided on the connecting ring 3, a square hole 14 provided on the fixed driven gear 1, and a limiting plate 9 provided on the adjusting driven gear 2. The installation assembly is used for fixing the installation of the driven gear 1 and the adjusting driven gear 2.

[0028] Specifically, such as Figure 3 As shown, the mounting assembly also includes a limiting plate 9 movably disposed within a square hole 14, and the square hole 14 extends through the connecting groove 12. By inserting the limiting plate 9 into the square hole 14, the pre-positioning of the adjustment passive gear 2 can be achieved.

[0029] Specifically, such as Figure 4As shown, the limiting plate 9 has an arc-shaped groove 10 inside, and the arc-shaped groove 10 passes through the limiting plate 9. The arc-shaped plate 5 is movably disposed in the arc-shaped groove 10. By sliding the arc-shaped plate 5 into the arc-shaped groove 10, the fixed passive gear 1 and the adjusting passive gear 2 can be fixed.

[0030] Specifically, such as Figure 4 As shown, the fixed passive gear 1 has a connecting groove 12 inside, the connecting groove 12 has a fixing block 8 inside, the fixing block 8 has an elastic element 7 on one side, and the arc plate 5 is located at one end of the elastic element 7. Through the elastic force of the elastic element 7, the arc plate 5 can be firmly stuck in the arc groove 10.

[0031] Specifically, such as Figure 5 As shown, a connecting block 6 is provided on one side of the arc plate 5, and the connecting block 6 is provided on one side of the connecting ring 3. The connecting block 6 enables the arc plate 5 to move when the connecting ring 3 rotates.

[0032] Specifically, such as Figure 4 As shown, an outer ring 4 is provided on the outside of the connecting ring 3, and an arc groove 13 is provided on the fixed passive gear 1 corresponding to the outer ring 4. The outer ring 4 is movably disposed in the arc groove 13. The setting of the outer ring 4 facilitates the limiting of the connecting ring 3.

[0033] The connecting ring 3 is provided with a fixing component, which includes a through hole 15 provided on the connecting ring 3 and a threaded post 18 provided on the through hole 15. The fixing component is used to fix the connecting ring 3.

[0034] Specifically, such as Figure 6 As shown, the fixing assembly also includes a mounting plate 16 disposed inside the through hole 15, a threaded post 18 disposed on the mounting plate 16 and passing through the mounting plate 16, and a handle 17 disposed at one end of the threaded post 18, so that the operator can control the movement of the threaded post 18 through the handle 17.

[0035] Specifically, such as Figure 6 As shown, the passive gear 2 is equipped with four sets of limiting plates 9. The top of one set of limiting plates 9 is provided with a threaded hole 11 corresponding to the threaded post 18. The connecting ring 3 can be fixed by the cooperation between the threaded hole 11 and the threaded post 18.

[0036] In this embodiment: by controlling the limiting plate 9 to be inserted into the square hole 14, the arc plate 5 and the arc groove 10 are on the same horizontal line. Through the elastic force of the elastic element 7, the arc plate 5 can be driven to slide into the arc groove 10, which can quickly install the adjusting passive gear 2 onto the fixed passive gear 1, effectively reducing the installation difficulty. After the installation is completed, by controlling the rotation of the threaded column 18, the threaded column 18 spirals into the threaded hole 11, which can fix the connecting ring 3, thereby preventing the connecting ring 3 from rotating accidentally when the fixed passive gear 1 is being fixed.

[0037] The specific solution is as follows: When it is necessary to install and adjust the passive gear 2 on the fixed passive gear 1, the operator controls the rotation of the connecting ring 3 to move the arc plate 5 away from directly above the square hole 14. By inserting the limiting plate 9 into the square hole 14, the arc groove 10 and the arc plate 5 are on the same horizontal line. At this time, the operator releases the connecting ring 3, allowing the outer ring 4 to move inside the arc groove 13. The elastic force of the elastic element 7 can drive the arc plate 5 to slide into the arc groove 10, thereby fixing the adjusted passive gear 2. This greatly reduces the installation difficulty and facilitates the installation of the adjusted passive gear 2. Through the through hole 15, it is possible to observe whether the limiting plate 9 is inserted into the square hole 14. By rotating the handle 17, the threaded column 18 rotates into the threaded hole 11, thereby fixing the connecting ring 3 and effectively preventing the connecting ring 3 from rotating accidentally.

[0038] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary; within the framework of this invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of this invention as described above, which are not provided in the details for the sake of brevity.

[0039] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An axially limited backlash gear comprising: The fixed driven gear (1) is provided with a protrusion (19), and the protrusion (19) is provided with an adjusting driven gear (2), characterized in that further comprising: The mounting assembly is arranged on the fixed driven gear (1), and the mounting assembly comprises a limiting plate (9) and a square hole (14), the limiting plate (9) is arranged on the adjusting driven gear (2), the square hole (14) is arranged on the fixed driven gear (1), one side of the square hole (14) is provided with an arc-shaped plate (5), the fixed driven gear (1) is provided with a connecting ring (3), and the mounting assembly is used for mounting the fixed driven gear (1) and the adjusting driven gear (2). The fixing assembly is arranged on the connecting ring (3), and the fixing assembly comprises a through hole (15) arranged on the connecting ring (3), and a threaded column (18) arranged on the through hole (15), and the fixing assembly is used for fixing the connecting ring (3).

2. The axial stop backlash elimination gear according to claim 1, characterized in that, The mounting assembly further comprises that the limiting plate (9) is movably arranged in the square hole (14), the square hole (14) penetrates the fixed driven gear (1) and communicates with the connecting groove (12).

3. The axially limited backlash gear according to claim 2, characterized in that The limiting plate (9) is internally provided with an arc-shaped groove (10), and the arc-shaped groove (10) penetrates the limiting plate (9), the arc-shaped groove (10) is matched with the arc-shaped plate (5), and the arc-shaped plate (5) is movably arranged in the arc-shaped groove (10).

4. The axially limited backlash gear according to claim 1, wherein The fixed driven gear (1) is internally provided with a connecting groove (12), the connecting groove (12) is internally provided with a fixed block (8), one side of the fixed block (8) is provided with an elastic element (7), and the arc-shaped plate (5) is fixedly connected to one end of the elastic element (7).

5. The axially limited backlash gear according to claim 1, wherein, The arc-shaped plate (5) is fixedly connected with a connecting block (6) on one side close to the connecting ring (3), and one end of the connecting block (6) is fixedly connected to one side of the connecting ring (3) close to the fixed driven gear (1).

6. The axially limited backlash gear according to claim 1, wherein, The connecting ring (3) is provided with an external tangent ring (4) on the outer side, the fixed driven gear (1) is provided with an arc-shaped groove (13) corresponding to the external tangent ring (4), and the external tangent ring (4) is movably arranged in the arc-shaped groove (13).

7. The axially limited backlash gear according to claim 1, wherein The fixing assembly further comprises an installation plate (16) arranged in the through hole (15), the threaded column (18) is arranged on the installation plate (16), and the threaded column (18) penetrates the installation plate (16), and one end of the threaded column (18) is provided with a handle (17).

8. The axially limited backlash gear according to claim 5, wherein, The adjusting driven gear (2) is provided with four groups of limiting plates (9), and the top end of one group of limiting plates (9) is provided with a threaded hole (11) corresponding to the threaded column (18).

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