A sprocket inner and outer tooth processing alignment device

Abstract

The utility model relates to chain wheel machining equipment technical field and disclose a kind of chain wheel inner and outer tooth processing alignment device, including mounting shaft, the surface of mounting shaft is respectively equipped with first sprocket and second sprocket, the outside of mounting shaft is equipped with two half ring plates, the rear side of two half ring plates is fixedly connected with scale board, the surface of half ring plate is equipped with first annular groove, the inside of first annular groove is slidably connected with sliding block, the inside of sliding block is equipped with cavity, the inside of cavity is slidably connected with two connecting plates, the cooperation between extruding plate, connecting plate, abutting rod, first spring and other structures, the position of sliding block is limited, the stability of sliding block in first annular groove is guaranteed, effectively avoid the situation that sliding block is cheap because of external equipment vibration or collision, to ensure the precision of alignment.

Description

Technical Field

[0001] This utility model relates to the technical field of sprocket processing equipment, specifically a device for aligning the internal and external teeth of a sprocket. Background Technology

[0002] A sprocket is a wheel with interlocking teeth for meshing with precisely pitched blocks on a chain link or cable. Sprockets are widely used in mechanical transmissions in industries such as chemical engineering, textile machinery, escalators, wood processing, automated parking systems, agricultural machinery, food processing, instrumentation, and petroleum.

[0003] In the prior art, CN219235086U discloses a sprocket internal and external tooth machining alignment device. Although the above-mentioned prior art achieves effective alignment of the teeth when machining the two discs of the sprocket, in actual use, since the rotating block in the prior art is not effectively restricted, it is affected by external vibration, processing stress and other factors during mechanical transmission. Even if the operator accidentally touches the device, the rotating block may move, which will cause the pointer to deviate. The alignment accuracy is prone to deviation, and the stability and practicality are poor in actual use. In view of this, we propose a sprocket internal and external tooth machining alignment device to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a sprocket internal and external tooth machining alignment device, which solves the problem that some existing sprocket internal and external tooth machining alignment devices have poor stability and are prone to alignment accuracy deviations.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sprocket internal and external tooth machining alignment device, comprising a mounting shaft, on the surface of which a first sprocket and a second sprocket are respectively mounted; two semi-annular plates are sleeved on the outside of the mounting shaft; a scale plate is fixedly connected to the rear side of each of the two semi-annular plates; a first annular groove is formed on the surface of each semi-annular plate; a sliding block is slidably connected inside the first annular groove; a cavity is formed inside the sliding block; two connecting plates are slidably connected inside the cavity; a retaining rod is fixedly connected to the opposite side surface of each of the two connecting plates; a second annular groove is formed on the inner walls of both sides of the first annular groove; the retaining rod extends into the interior of the second annular groove; four limiting through grooves are formed on the upper surface of the sliding block; two pressing plates are fixedly connected to the upper surfaces of the two connecting plates; the pressing plates are slidably connected inside the limiting through grooves and extend out of the limiting through grooves; a reset component is provided inside the cavity.

[0006] Preferably, an indicator needle is fixedly connected to the upper surface of the sliding block, and scale marks are provided on the surface of the scale plate.

[0007] Preferably, the reset assembly includes a guide rod, which is fixedly connected inside the cavity, and both connecting plates are slidably sleeved on the outside of the guide rod.

[0008] Preferably, a first spring is fixedly connected between the two guide rods, and a first spring is also fixedly connected between the opposite side surfaces of the two guide rods and the inner walls of both sides of the cavity, with the first spring movably sleeved on the outside of the guide rods.

[0009] Preferably, a docking rod is fixedly connected to one side surface of each of the two indicator needles that are close to each other. The front docking rod has a telescopic groove inside, and a sliding rod is slidably connected inside the telescopic groove. The end of the sliding rod is set as an arc surface.

[0010] Preferably, the surface of the rear connecting rod is provided with a groove, the groove is adapted to the end arc surface of the sliding rod, and a second spring is fixedly connected between the sliding rod and the inner wall of the telescopic groove.

[0011] Preferably, the inner wall of the second annular groove and the end of the clamping rod that contacts the inner wall of the second annular groove are both provided with a friction layer.

[0012] Preferably, a fixing plate is fixedly connected to the surface of each of the two semi-annular plates, and a locking bolt is fitted inside the fixing plate.

[0013] Compared with the prior art, this utility model provides a sprocket internal and external tooth machining alignment device, which has the following beneficial effects: 1. The sprocket internal and external tooth alignment device, through the cooperation between the extrusion plate, connecting plate, clamping rod, first spring and other structures, facilitates the restriction of the position of the sliding block, ensures the stability of the sliding block inside the first annular groove, and effectively avoids the sliding block from falling due to vibration or collision of external equipment, thereby ensuring the alignment accuracy.

[0014] 2. This sprocket internal and external tooth alignment device, through the cooperation between the connecting rod, sliding rod, second spring and groove, ensures that after the end of the sliding rod enters the inside of the groove, the two connecting rods and the indicator needle will be in an aligned state, which improves the alignment efficiency, is simple to operate and has high practicality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a sprocket internal and external tooth alignment device according to the present invention; Figure 2 This is a schematic diagram of the semi-ring plate of this utility model; Figure 3 This is a cross-sectional view of the semi-ring plate of this utility model; Figure 4This is a schematic diagram of the structure of the sliding block of this utility model; Figure 5 This is a cross-sectional view of the sliding block of this utility model; Figure 6 This is a cross-sectional view of the second annular groove of this utility model; Figure 7 This is a cross-sectional structural diagram of the connecting rod of this utility model.

[0016] In the diagram: 1. Mounting shaft; 2. First sprocket; 3. Second sprocket; 4. Semi-annular plate; 5. Scale plate; 6. First annular groove; 7. Sliding block; 8. Cavity; 9. Connecting plate; 10. Clamping rod; 11. Second annular groove; 12. Limiting through groove; 13. Pressing plate; 14. Guide rod; 15. First spring; 16. Indicator needle; 17. Connecting rod; 18. Telescopic groove; 19. Sliding rod; 20. Groove; 21. Second spring; 22. Friction layer; 23. Scale mark; 24. Fixing plate; 25. Locking bolt. Detailed Implementation

[0017] 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.

[0018] Please see Figures 1-7 This utility model provides a technical solution: a sprocket internal and external tooth processing alignment device, including a mounting shaft 1, on which a first sprocket 2 and a second sprocket 3 are respectively mounted. Two semi-annular plates 4 are sleeved on the outside of the mounting shaft 1. A scale plate 5 is fixedly connected to the rear side of each of the two semi-annular plates 4. A first annular groove 6 is formed on the surface of the semi-annular plates 4. A sliding block 7 is slidably connected inside the first annular groove 6. A cavity 8 is formed inside the sliding block 7. Two connecting plates 9 are slidably connected inside the cavity 8. A clamping rod 10 is fixedly connected to the opposite side surface of each of the two connecting plates 9. A second annular groove 11 is formed on the inner walls of both sides of the first annular groove 6. The clamping rod 10 extends into the interior of the second annular groove 11. Four limiting through grooves 12 are formed on the upper surface of the sliding block 7. Two extrusion plates 13 are fixedly connected to the upper surface of each of the two connecting plates 9. The extrusion plates 13 are slidably connected inside the limiting through grooves 12 and extend out of the limiting through grooves 12. A reset component is provided inside the cavity 8.

[0019] In the above embodiments, the first sprocket 2 and the second sprocket 3 in this solution are installed on the outside of the mounting shaft 1 in the same way as the method described in the announcement number CN219235086U. Since this is a conventional technical means in the field, it will not be described in detail here.

[0020] The upper surface of the sliding block 7 is fixedly connected with an indicator needle 16, and the surface of the scale plate 5 is provided with scale marks 23. The cooperation between the indicator needle 16 and the scale marks 23 makes it easy for the staff to check the angle of the teeth. Both the semi-circular plate 4 and the scale plate 5 are made of transparent material, and the accuracy of the scale marks 23 is 1°.

[0021] The reset assembly includes a guide rod 14, which is fixedly connected inside the cavity 8, and two connecting plates 9 are slidably sleeved on the outside of the guide rod 14.

[0022] A first spring 15 is fixedly connected between the two guide rods 14. A first spring 15 is also fixedly connected between the opposite side surface of the two guide rods 14 and the inner walls of both sides of the cavity 8. The first spring 15 is movably sleeved on the outside of the guide rods 14. By moving the two connecting plates 9, the first spring 15 can be deformed. When the two connecting plates 9 move closer to the middle, the first spring 15 in the middle will be compressed and the first spring 15 on both sides will be stretched. At this time, the connecting plates 9 will also drive the movement of the clamping rod 10, so that the end of the clamping rod 10 no longer contacts the inner wall of the second annular groove 11.

[0023] Two indicator pins 16 are fixedly connected to a docking rod 17 on their adjacent side surfaces. The front docking rod 17 has a telescopic groove 18 inside, and a sliding rod 19 is slidably connected inside the telescopic groove 18. The end of the sliding rod 19 is set as an arc surface.

[0024] A groove 20 is provided on the surface of the rear connecting rod 17. The groove 20 is adapted to the end arc surface of the sliding rod 19. A second spring 21 is fixedly connected between the sliding rod 19 and the inner wall of the telescopic groove 18. When the end of the sliding rod 19 enters the interior of the groove 20, the two connecting rods 17 and the indicator needle 16 will be aligned. The hardness of the second spring 21 is less than that of the first spring 15. Therefore, when the end of the sliding rod 19 contacts the rear connecting rod 17, it will not cause the connecting rod 17 to move, thus ensuring the stability of the sliding block 7. At this time, the sliding rod 19 will only slide inside the telescopic groove 18. After the end of the sliding rod 19 is aligned with the groove 20, the sliding rod 19 can be inserted into the interior of the groove 20 by means of the elastic force of the second spring 21.

[0025] The inner wall of the second annular groove 11 and the end of the clamping rod 10 that contacts the inner wall of the second annular groove 11 are both provided with a friction layer 22. By providing the friction layer 22, the friction between the clamping rod 10 and the second annular groove 11 is further increased, thereby further improving the stability of the sliding block 7 and ensuring the stability when clamping.

[0026] In the above embodiments, the friction layer 22 can be a rubber layer or a protective coating, etc. Since this is a conventional technique in the field, it will not be described in detail here.

[0027] Both semi-ring plates 4 are fixedly connected to a fixing plate 24. The fixing plate 24 has a locking bolt 25 threaded inside. The two semi-ring plates 4 can be fixed to the outside of the mounting shaft 1 by the cooperation between the locking bolt 25 and the fixing plate 24.

[0028] Working principle: When using this sprocket internal and external tooth alignment device, if two sprockets need to be processed, the device is fixed to the outside of the mounting shaft 1 using the fixing plate 24 and locking bolts 25. Then, the operator presses the two pressing plates 13 on either side towards the middle. The movement of the pressing plates 13 drives the movement of the connecting plate 9, which in turn causes the first spring 15 to deform. When the two connecting plates 9 move closer to the middle, the first spring 15 in the middle will contract under force, while the first springs 15 on both sides will stretch under force. At this time, the connecting plate 9 also drives the movement of the clamping rod 10. This prevents the end of the clamping rod 10 from contacting the inner wall of the second annular groove 11, allowing the sliding block 7 to slide. At this time, the scale plate 5 is used to indicate the center of the gear teeth using two sets of indicator needles 16, thereby aligning the first sprocket 2 and the second sprocket 3. When the sliding block 7 and the indicator needles 16 move, they also drive the docking rod 17 to move. When the end of the sliding rod 19 enters the interior of the groove 20, the two docking rods 17 and the indicator needles 16 will be aligned, thus achieving the purpose of auxiliary alignment and making it easier for the staff to check whether the two sets of indicator needles 16 are aligned.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sprocket internal and external tooth machining alignment device, comprising a mounting shaft (1), characterized in that: The mounting shaft (1) is respectively equipped with a first sprocket (2) and a second sprocket (3). Two semi-annular plates (4) are sleeved on the outside of the mounting shaft (1). A scale plate (5) is fixedly connected to the rear side of each of the two semi-annular plates (4). A first annular groove (6) is formed on the surface of the semi-annular plate (4). A sliding block (7) is slidably connected inside the first annular groove (6). A cavity (8) is formed inside the sliding block (7). Two connecting plates (9) are slidably connected inside the cavity (8). The two connecting plates (9) are opposite to each other. One side surface of each is fixedly connected with a clamping rod (10), and the inner walls of both sides of the first annular groove (6) are provided with a second annular groove (11). The clamping rod (10) extends into the interior of the second annular groove (11). The upper surface of the sliding block (7) is provided with four limiting through grooves (12). The upper surfaces of the two connecting plates (9) are fixedly connected with two extrusion plates (13). The extrusion plates (13) are slidably connected in the interior of the limiting through grooves (12) and extend out of the limiting through grooves (12). The cavity (8) is provided with a reset component.

2. The sprocket internal and external tooth alignment device according to claim 1, characterized in that: The upper surface of the sliding block (7) is fixedly connected with an indicator needle (16), and the surface of the scale plate (5) is provided with scale marks (23).

3. The sprocket internal and external tooth alignment device according to claim 2, characterized in that: The reset assembly includes a guide rod (14), which is fixedly connected inside the cavity (8), and the two connecting plates (9) are slidably sleeved on the outside of the guide rod (14).

4. The sprocket internal and external tooth alignment device according to claim 3, characterized in that: A first spring (15) is fixedly connected between the two guide rods (14). A first spring (15) is also fixedly connected between the opposite side surface of the two guide rods (14) and the inner walls of both sides of the cavity (8). The first spring (15) is movably sleeved on the outside of the guide rods (14).

5. The sprocket internal and external tooth machining alignment device according to claim 4, characterized in that: Both of the two indicator pins (16) have a docking rod (17) fixedly connected to one side surface. The front docking rod (17) has a telescopic groove (18) inside. A sliding rod (19) is slidably connected inside the telescopic groove (18). The end of the sliding rod (19) is set as an arc surface.

6. The sprocket internal and external tooth machining alignment device according to claim 5, characterized in that: The rear connecting rod (17) has a groove (20) on its surface. The groove (20) and the end arc surface of the sliding rod (19) are adapted to each other. A second spring (21) is fixedly connected between the sliding rod (19) and the inner wall of the telescopic groove (18).

7. The sprocket internal and external tooth alignment device according to claim 6, characterized in that: The inner wall of the second annular groove (11) and the end of the abutment rod (10) that contacts the inner wall of the second annular groove (11) are both provided with a friction layer (22).

8. The sprocket internal and external tooth alignment device according to claim 7, characterized in that: Both of the two semi-ring plates (4) are fixedly connected to a fixing plate (24), and the fixing plate (24) is threaded with a locking bolt (25).

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