Heavy-load cam divider with buffer protection structure

Abstract

The utility model relates to the related technical field of cam indexers, in particular to a heavy-load cam indexer with a buffer protection structure, which comprises a mounting outer box, an input shaft is mounted on one side of the mounting outer box, an output shaft is mounted at the top of the mounting outer box, one end of the output shaft is in key connection with a cam body, and the other end of the output shaft is in key connection with the buffer protection structure. A bearing buffering assembly is arranged on the surface of the bottom of the output shaft, and a roller buffering assembly is arranged at the bottom of the bearing buffering assembly. Through the arrangement of the bearing buffer assembly, the belleville spring is used for absorbing axial impact energy, direct collision between the bearing roller and the roller path is avoided, the tapered roller bearing bears radial and axial loads at the same time, and through the arrangement of the roller buffer assembly, when the driven roller is impacted, the compression spring can generate elastic deformation, so that the driven roller is prevented from being damaged. Impact energy is converted into elastic potential energy of the spring, so that impact is absorbed, damage of rigid collision to components is reduced, and high-frequency vibration is further buffered in cooperation with the elastic cushion.

Description

Technical Field

[0001] This utility model relates to the technical field of cam dividers, and in particular to a heavy-duty cam divider with a buffer protection structure. Background Technology

[0002] In automated production, the cam divider, as a core transmission component, needs to achieve high-precision intermittent motion under high-speed and heavy-load conditions. Traditional cam dividers can only withstand radial loads and cannot adapt to axial impacts. Moreover, existing cam dividers mostly rely on cam profile curve optimization to reduce impacts, but do not have active buffer devices. The rigid contact between the cam and the roller will still generate instantaneous impacts, leading to roller surface peeling and cam wear. Therefore, a heavy-duty cam divider with a buffer protection structure is particularly needed.

[0003] To address the aforementioned issues, a heavy-duty cam divider with a buffer protection structure is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a heavy-duty cam divider with a buffer protection structure to solve the problems of the existing heavy-duty cam dividers with buffer protection structures mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heavy-duty cam divider with a buffer protection structure, including a mounting outer box, an input shaft mounted on one side of the mounting outer box, an output shaft mounted on the top of the mounting outer box, a cam body keyed to one end of the output shaft, a bearing buffer assembly provided on the bottom surface of the output shaft, and a roller buffer assembly provided at the bottom of the bearing buffer assembly.

[0006] Preferably, the bearing buffer assembly includes an indexing plate and a bearing inner ring sequentially mounted on the surface of the output shaft. A disc spring is fitted on the surface of the output shaft and is located inside the bearing inner ring. Multiple sets of tapered rollers are installed on the inner wall of the bearing inner ring. An outer bearing ring is provided on the outer side of the bearing inner ring and together with the bearing inner ring, constrains the movement of the tapered rollers.

[0007] Preferably, the roller buffer assembly includes an output turret mounted at the bottom of the inner ring of the bearing. The output turret has a circumferential pin hinged to multiple sets of driven rollers. The surfaces of the driven rollers are slidably connected to collars. Compression springs are sleeved on the surfaces of the driven rollers. An elastic pad is glued to one end of the driven roller.

[0008] Preferably, the dynamic contact between the cam body profile surface and the driven roller surface transmits motion, and when the cam rotates, its surface pushes the driven roller to move.

[0009] Preferably, the elastic pad is used to reduce the rigid impact between the cam and the roller, absorb high-frequency vibration, and reduce wear and noise.

[0010] Preferably, the compression spring is located between the driven roller and the output turret, with one end of the compression spring fixed to the collar and the other end fixed to the output turret.

[0011] Preferably, the curved surface of the cam body pushes the driven roller, and the compression spring absorbs the impact through elastic deformation, which, together with the elastic pad, further buffers high-frequency vibration.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This heavy-duty cam divider with a buffer protection structure is equipped with a bearing buffer assembly, which absorbs axial impact energy through disc springs to avoid direct collision between the bearing rollers and the raceway. The tapered roller bearings bear both radial and axial loads simultaneously.

[0014] By setting up the roller buffer assembly, when the driven roller is impacted, the compression spring will undergo elastic deformation, converting the impact energy into the elastic potential energy of the spring, thereby absorbing the impact and reducing the damage to the components caused by rigid collisions. One end of the driven roller is glued with an elastic pad, which facilitates further buffering of high-frequency vibrations. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the roller buffer assembly of this utility model;

[0018] Figure 4 This is a schematic diagram showing the disassembled structure of the bearing buffer assembly of this utility model;

[0019] Figure 5 This utility model Figure 3 A magnified structural diagram of point A in the middle.

[0020] In the diagram: 1. Mounting housing; 2. Input shaft; 3. Output shaft; 4. Cam body; 5. Bearing buffer assembly; 501. Indexing plate; 502. Inner bearing ring; 503. Disc spring; 504. Tapered roller; 505. Outer bearing ring; 6. Roller buffer assembly; 601. Output turret; 602. Driven roller; 603. Collar; 604. Compression spring; 605. Elastic pad. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] Example

[0023] like Figure 1 , 2 As shown in Figure 4, the assembly includes an outer housing 1, an input shaft 2 mounted on one side of the outer housing 1, an output shaft 3 mounted on the top of the outer housing 1, a cam body 4 keyed to one end of the output shaft 3, a bearing buffer assembly 5 on the bottom surface of the output shaft 3, a roller buffer assembly 6 at the bottom of the bearing buffer assembly 5, and the bearing buffer assembly 5 including an indexing plate 501 and a bearing inner ring 502 mounted sequentially on the surface of the output shaft 3. A disc spring 503 is fitted on the surface of the output shaft 3 and is located inside the bearing inner ring 502. Multiple sets of tapered rollers 504 are mounted on the inner wall of the bearing inner ring 502. An outer bearing ring 505 is provided on the outer side of the bearing inner ring 502 and together with the bearing inner ring 502, constrains the movement of the tapered rollers 504.

[0024] It should be noted that in this embodiment, a disc spring 503 is fitted on the surface of the output shaft 3 and is located inside the inner ring 502 of the bearing. The disc spring 503 provides axial preload and absorbs axial impact from the output shaft 3. When the divider is subjected to axial force during operation, the disc spring 503 is compressed and deformed, which plays a buffering role and protects the bearing and other components. Multiple sets of tapered rollers 504 are installed on the inner wall of the bearing inner ring 502, and an outer ring 505 is provided on the outer side of the bearing inner ring 502. Together they form a tapered roller bearing. The tapered roller bearing is used to bear the combined radial and axial loads and ensure the stable rotation of the output shaft 3. When the output turret 601 moves intermittently, the tapered roller bearing evenly transmits the load to the mounting housing 1, while reducing vibration and noise.

[0025] The indexing plate 501 is mounted on the surface of the output shaft 3 and arranged sequentially with the inner ring of the bearing 502. The intermittent motion of the output turret 601 is transmitted to the indexing plate 501 through gear transmission (this transmission method is a conventional technology in the prior art, so it will not be described in detail), so that the indexing plate 501 can achieve precise indexing function. The intermittent motion of the output turret 601 is finally output through the output shaft 3. The output shaft 3 is mounted on the top of the mounting box 1 and transmits the power after buffering and precise indexing to the subsequent working mechanism.

[0026] like Figure 1 , 3As shown in Figure 5, the roller buffer assembly 6 includes an output turret 601 installed at the bottom of the inner ring 502 of the bearing. The output turret 601 is hinged to a circumferential pin with multiple sets of driven rollers 602. A collar 603 is slidably connected to the surface of the driven rollers 602. A compression spring 604 is sleeved on the surface of the driven rollers 602. An elastic pad 605 is glued to one end of the driven rollers 602.

[0027] It should be noted that in this embodiment, the external power motor is connected to the input shaft 2, transmitting power to the input shaft 2 to cause it to rotate. The input shaft 2 is mounted on one side of the mounting housing 1, providing initial rotational power to the entire divider. The rotation of the input shaft 2 drives the cam body 4, which is keyed to it, to rotate synchronously. The cam body 4 is mounted on one end of the output shaft 3. When the cam body 4 rotates, its contour surface dynamically contacts the curved surface of the driven roller 602. Due to the change in the shape of the curved surface of the cam body 4, it pushes the driven roller 602 to move. The driven roller 602 is hinged to the circumference of the output turret 601 by a pin. Therefore, when the driven roller 602 is pushed by the cam body 4, it will swing around the pin. This swinging motion causes the cam body to rotate. The rotational motion of 4 is converted into the intermittent motion of the output turret 601. During the process of the driven roller 602 being pushed by the cam body 4, impact and vibration are generated. The compression spring 604 is located between the driven roller 602 and the output turret 601, with one end fixed to the collar 603 and the other end fixed to the output turret 601. When the driven roller 602 is impacted, the compression spring 604 will undergo elastic deformation, converting the impact energy into the elastic potential energy of the spring, thereby absorbing the impact and reducing the damage to the components caused by rigid collisions. An elastic pad 605 is glued to one end of the driven roller 602 to further buffer high-frequency vibrations. The elastic pad 605 has good elasticity and damping characteristics, absorbing and dispersing these high-frequency vibrations, reducing wear and noise.

[0028] The driven roller 602 oscillates, causing the output turret 601 to move intermittently. The output turret 601 is installed at the bottom of the inner ring 502 of the bearing. When the driven roller 602 is pushed by the cam body 4, the output turret 601 will rotate and stop according to a certain pattern, realizing the intermittent output function of the divider.

[0029] Working principle of this utility model:

[0030] Refer to the instruction manual appendix Figure 1-5An external power motor is connected to the input shaft 2, transmitting power to the input shaft 2 and causing it to rotate. The input shaft 2 is mounted on one side of the outer casing 1, providing initial rotational power to the entire divider. The rotation of the input shaft 2 drives the cam body 4, which is keyed to it, to rotate synchronously. The cam body 4 is mounted on one end of the output shaft 3. When the cam body 4 rotates, its contour surface dynamically contacts the curved surface of the driven roller 602. Due to the change in the shape of the cam body 4's curved surface, it pushes the driven roller 602 to move. The driven roller 602 is hinged to the circumference of the output turret 601 by a pin. Therefore, when the driven roller 602 is pushed by the cam body 4, it will swing around the pin. This swinging motion drives the rotation of the cam body 4. The intermittent motion of the output turret 601 is converted into the impact and vibration generated during the process of the driven roller 602 being pushed by the cam body 4. The compression spring 604 is located between the driven roller 602 and the output turret 601, with one end fixed to the collar 603 and the other end fixed to the output turret 601. When the driven roller 602 is impacted, the compression spring 604 will undergo elastic deformation, converting the impact energy into the elastic potential energy of the spring, thereby absorbing the impact and reducing the damage to the components caused by rigid collisions. An elastic pad 605 is glued to one end of the driven roller 602 to further buffer high-frequency vibrations. The elastic pad 605 has good elasticity and damping characteristics, absorbing and dispersing these high-frequency vibrations, reducing wear and noise.

[0031] A disc spring 503 is fitted on the surface of the output shaft 3 and is located inside the inner ring 502 of the bearing. The disc spring 503 provides axial preload and absorbs axial impact from the output shaft 3. When the divider is subjected to axial force during operation, the disc spring 503 is compressed and deformed, which plays a buffering role and protects the bearing and other components. Multiple sets of tapered rollers 504 are installed on the inner wall of the bearing inner ring 502, and an outer ring 505 is provided on the outer side of the bearing inner ring 502. Together they form a tapered roller bearing. The tapered roller bearing is used to bear the combined radial and axial loads and ensure the stable rotation of the output shaft 3. When the output turret 601 moves intermittently, the tapered roller bearing evenly transmits the load to the mounting housing 1, while reducing vibration and noise.

[0032] The indexing plate 501 is mounted on the surface of the output shaft 3 and arranged sequentially with the inner ring of the bearing 502. The intermittent motion of the output turret 601 is transmitted to the indexing plate 501 through gear transmission (this transmission method is a conventional technology in the prior art, so it will not be described in detail), so that the indexing plate 501 can achieve precise indexing function. The intermittent motion of the output turret 601 is finally output through the output shaft 3. The output shaft 3 is mounted on the top of the mounting box 1 and transmits the power after buffering and precise indexing to the subsequent working mechanism.

[0033] 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 heavy-duty cam divider with a buffer protection structure, comprising a mounting housing (1), characterized in that: An input shaft (2) is installed on one side of the mounting box (1), an output shaft (3) is installed on the top of the mounting box (1), a cam body (4) is keyed to one end of the output shaft (3), a bearing buffer assembly (5) is provided on the bottom surface of the output shaft (3), and a roller buffer assembly (6) is provided at the bottom of the bearing buffer assembly (5).

2. The heavy-duty cam divider with a buffer protection structure according to claim 1, characterized in that: The bearing buffer assembly (5) includes an indexing plate (501) and a bearing inner ring (502) sequentially mounted on the surface of the output shaft (3). A disc spring (503) is fitted on the surface of the output shaft (3) and is located inside the bearing inner ring (502). Multiple sets of tapered rollers (504) are installed on the inner wall of the bearing inner ring (502). An outer bearing ring (505) is provided on the outer side of the bearing inner ring (502) and together with the bearing inner ring (502) constrains the movement of the tapered rollers (504).

3. A heavy-duty cam divider with a buffer protection structure according to claim 1, characterized in that: The roller buffer assembly (6) includes an output turret (601) installed at the bottom of the inner ring (502) of the bearing. The output turret (601) has a circumferential pin hinged to multiple sets of driven rollers (602). The surfaces of the driven rollers (602) are slidably connected to a collar (603). The surfaces of the driven rollers (602) are fitted with a compression spring (604). One end of the driven rollers (602) is glued with an elastic pad (605).

4. A heavy-duty cam divider with a buffer protection structure according to claim 1, characterized in that: The dynamic contact between the contour surface of the cam body (4) and the surface of the driven roller (602) transmits motion. When the cam rotates, its surface pushes the driven roller (602) to move.

5. A heavy-duty cam divider with a buffer protection structure according to claim 3, characterized in that: The elastic pad (605) is used to reduce the rigid impact between the cam and the roller, absorb high-frequency vibration, and reduce wear and noise.

6. A heavy-duty cam divider with a buffer protection structure according to claim 3, characterized in that: The compression spring (604) is located between the driven roller (602) and the output turret (601). One end of the compression spring (604) is fixed to the collar (603), and the other end is fixed to the output turret (601).

7. A heavy-duty cam divider with a buffer protection structure according to claim 1, characterized in that: The cam body (4) pushes the driven roller (602) with its curved surface, and the compression spring (604) absorbs the impact through elastic deformation, and the elastic pad (605) further buffers the high-frequency vibration.

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