A detachable cam structure

Abstract

The utility model discloses a detachable cam structure relates to cam structure technical field, and includes: cam device, installation device is inserted and installed on cam device, gear position device, the symmetrical flat mouth groove of being provided with on cam device, gear position device installs inside flat mouth groove, and gear position device is used for the limiting of installation device. The utility model discloses the setting mode of installation device and gear position device cooperation, through the extension of gear position device relative installation device, the gear position of installation device is convenient, prevents the separation of installation device relative cam device, makes the positioning of installation device more stable, even if eccentric part bears driven part reaction force in the mechanical operation, and cam device also can not produce axial displacement or radial deviation, ensures the cooperation accuracy of cam device and drive shaft, need not stop and overhaul because of the positioning failure of bolt loosening, reduces equipment failure frequency, guarantees the continuous stable operation of machinery.

Description

Technical Field

[0001] This utility model relates to the field of cam structure technology, and in particular to a detachable cam structure. Background Technology

[0002] In the field of mechanical transmission, the cam structure is a key component for realizing intermittent and reciprocating motion, and is widely used in engine valve trains, textile machinery roller drives, and automated equipment feeding mechanisms. Through the tight fit between the bushing and the drive shaft, and relying on the specific contour of the eccentric part, it precisely converts the rotational motion of the drive shaft into the expected reciprocating or intermittent motion of the driven component. Therefore, the positioning stability and connection reliability of the cam structure and its mounting base directly determine the overall transmission accuracy, operating efficiency, and operational safety of the machine. However, existing detachable cam structures generally rely on bolt connections for installation and positioning. These bolt connections are susceptible to loosening due to vibration and impact, leading to cam positioning failure. Current cam devices typically mount to a shaft via a sleeve, then secure them with circumferentially or axially distributed bolts. However, during mechanical operation, the eccentric portion of the cam continuously bears the reaction force of the driven component, and equipment vibration gradually increases the clearance between the bolts and threaded holes. Over time, bolt loosening is highly likely. This can lead to axial or radial displacement of the cam device, causing deviations in the driven component's trajectory and reducing transmission accuracy. In severe cases, it can cause the cam device to detach from the mounting shaft. The detached cam may collide with surrounding components, causing equipment downtime, component damage, or even safety accidents. This risk is particularly significant in high-speed, precision equipment. Utility Model Content

[0003] The purpose of this invention is to provide a detachable cam structure to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a detachable cam structure, comprising: Cam device; The mounting device is inserted and mounted on the cam device; The cam device has symmetrically opened flat grooves, and the cam device is installed inside the flat grooves. The cam device is used to limit the movement of the mounting device.

[0005] Preferably, the cam device includes: The bushing portion has a shaft hole in its middle part; The eccentric part is integrally connected with the bushing part.

[0006] Preferably, the mounting device includes: Positioning pins are symmetrically inserted and installed on the bushing portion; A threaded post, which is connected to the end of one of the locating pins and is threadedly engaged with the other locating pin.

[0007] Preferably, the gear shifting device includes: A limiting seat, which is fixedly installed inside a flat groove; An elastic stop mechanism is movably disposed inside the limiting seat; A sliding support mechanism is connected to an elastic stop mechanism, and the sliding support mechanism is used to control the movement of the elastic stop mechanism.

[0008] Preferably, the elastic stop mechanism includes: A baffle plate that slides within the cavity of the limiting seat; A guide rod, one end of which is fixedly connected to the inner wall of the limiting seat, and the guide rod is slidably inserted into the baffle. A spring, which is movably sleeved on the outside of the guide rod.

[0009] Preferably, the sliding support mechanism includes: A slider, one end of which is fixedly connected to a baffle; The support frame has a groove on the slider, and one end of the support frame is rotatably connected to a rotating shaft, which is fixedly installed inside the groove.

[0010] Preferably, the sliding support mechanism further includes: A fixing block is fixedly installed on a limiting seat. The fixing block has a slot, and the inner cavity of the support frame cooperates with the slot.

[0011] Preferably, the limiting seat has a sliding groove, and the slider cooperates with the inner cavity of the sliding groove.

[0012] The technical effects and advantages of this utility model are as follows: This invention utilizes a combination of an installation device and a stop device. The stop device extends relative to the installation device, facilitating the positioning of the installation device and preventing it from detaching from the cam device. This makes the positioning of the installation device more stable. Even if the eccentric part is subjected to the reaction force of the driven component during mechanical operation, the cam device will not experience axial movement or radial offset. This ensures the matching accuracy between the cam device and the drive shaft, eliminating the need for machine downtime and maintenance due to positioning failure caused by loose bolts. This reduces the frequency of equipment failures, ensures continuous and stable mechanical operation, improves production efficiency, and avoids the cam device detaching and colliding with surrounding components. It fundamentally eliminates the risk of equipment downtime, component damage, or even safety accidents caused by the cam device detaching. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of this utility model; Figure 3 This is a schematic diagram of the installation device of this utility model; Figure 4 This is a schematic diagram of the internal structure of the gear shifting device of this utility model.

[0014] In the attached image: 100. Cam assembly; 101. Bushing; 102. Eccentric part; 200. Mounting device; 201. Locating pin; 202. Threaded column; 300. Stop device; 301. Limit seat; 302. Baffle; 303. Guide rod; 304. Spring; 305. Slider; 306. Support frame; 307. Fixing block. Detailed Implementation

[0015] 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.

[0016] This utility model provides, for example Figures 1-4 The detachable cam structure shown includes: a cam device 100; a mounting device 200, which is inserted and mounted on the cam device 100; and a stop device 300, wherein the cam device 100 has symmetrically formed flat slots, and the stop device 300 is installed inside the flat slots. The stop device 300 is used to limit the mounting device 200. By extending the stop device 300 relative to the mounting device 200, it is easy to stop the mounting device 200 and prevent the mounting device 200 from disengaging from the cam device 100, thus allowing the mounting device 200 to... The positioning is more stable. Even if the eccentric part 102 is subjected to the reaction force of the driven part during mechanical operation, the cam device 100 will not produce axial movement or radial offset. This ensures the matching accuracy between the cam device 100 and the drive shaft. There is no need to stop the machine for maintenance due to positioning failure caused by loose bolts, which reduces the frequency of equipment failure, ensures continuous and stable operation of the machine, improves production efficiency, and avoids the situation where the cam device 100 falls off and collides with surrounding parts. It fundamentally eliminates the risk of equipment shutdown, component damage, or even safety accidents caused by the cam device 100 falling off.

[0017] The cam device 100 includes: a bushing portion 101, with a shaft hole in the middle; and an eccentric portion 102, which is integrally connected to the bushing portion 101. The bushing portion 101 is closely fitted with the drive shaft. By eccentrically setting the eccentric portion 102 relative to the bushing portion 101, the rotational motion of the drive shaft is accurately converted into the expected reciprocating or intermittent motion of the driven member.

[0018] The mounting device 200 includes: a locating pin 201, which is symmetrically inserted and mounted on the bushing portion 101; and a threaded post 202, which is connected to the end of one of the locating pins 201 and is threadedly engaged with the other locating pin 201. The threaded post 202 facilitates the threaded positioning of the relative position between the two locating pins 201 to ensure the stability of the insertion of the locating pin 201 and the drive shaft.

[0019] Specifically, the gear shifting device 300 includes: a limiting seat 301, which is fixedly installed inside the flat groove; an elastic gear shifting mechanism, which is movably disposed inside the limiting seat 301; and a sliding support mechanism, which is connected to the elastic gear shifting mechanism and is used to control the movement of the elastic gear shifting mechanism. The elastic gear shifting mechanism includes: a baffle 302, which slides within the cavity of the limiting seat 301; a guide rod 303, one end of which is fixedly connected to the inner wall of the limiting seat 301, and the guide rod 303 is slidably inserted into the baffle 302; and a spring 304, which is movably sleeved outside the guide rod 303. The sliding support mechanism includes: a slider 305, one end of which is fixedly connected to the baffle 302; and a support frame 306, on which a groove is formed, and one end of the support frame 306 is rotatably connected to a rotating shaft, which is fixedly installed inside the groove. The sliding support mechanism also includes: a fixing block 307, which is fixedly installed on the limiting seat 301. The fixing block 307 has a slot, and the support frame 306 cooperates with the inner cavity of the slot. The limiting seat 301 has a sliding groove, and the slider 305 cooperates with the inner cavity of the sliding groove. The limiting seat 301 facilitates the sliding of the baffle 302. The extension of the baffle 302 relative to the limiting seat 301 facilitates the blocking of the head of the positioning pin 201, preventing the positioning pin 201 from disengaging radially from the bushing 101. The insertion between the guide rod 303 and the baffle 302 facilitates the guiding of the sliding of the baffle 302, making the linear sliding of the baffle 302 more stable. The spring 304 provides elastic support for the baffle 302, allowing the baffle 302 to stably block the mounting device 200. The sliding groove facilitates the sliding of the slider 305. The slider 305 allows for linear sliding of the limit seat 301 to create sliding space. The slider 305 facilitates the movement of the baffle 302, allowing the baffle 302 to be pulled into the limit seat 301 for storage. This enables the disassembly of the two positioning pins 201 relative to the cam device 100. By rotating the support frame 306, the support frame 306 rotates along the axis of the rotating shaft until it is parallel to the baffle 302. Then, it is inserted into the slot of the fixing block 307. The support frame 306 supports the position of the slider 305, keeping the baffle 302 in a stored state, which facilitates the operation of the installation device 200.

[0020] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A detachable cam structure, characterized in that, include: Cam device (100); Mounting device (200), which is inserted and mounted on cam device (100); The stop device (300) is provided with a flat groove symmetrically opened on the cam device (100). The stop device (300) is installed inside the flat groove and is used to limit the movement of the mounting device (200).

2. The detachable cam structure according to claim 1, characterized in that, The cam device (100) includes: A bushing portion (101) has a shaft hole in its middle part; Eccentric part (102) is integrally connected with bushing part (101).

3. The detachable cam structure according to claim 1, characterized in that, The mounting device (200) includes: Positioning pins (201) are symmetrically inserted and installed on the bushing portion (101); A threaded post (202) is connected to the end of one of the locating pins (201) and is threadedly engaged with the other locating pin (201).

4. The detachable cam structure according to claim 1, characterized in that, The gear shifting device (300) includes: A limiting seat (301) is fixedly installed inside a flat groove; An elastic stop mechanism is movably disposed inside the limiting seat (301); A sliding support mechanism is connected to an elastic stop mechanism, and the sliding support mechanism is used to control the movement of the elastic stop mechanism.

5. The detachable cam structure according to claim 4, characterized in that, The elastic stop mechanism includes: Baffle (302), wherein the baffle (302) slides in conjunction with the inner cavity of the limiting seat (301); Guide rod (303), one end of which is fixedly connected to the inner wall of the limiting seat (301), and the guide rod (303) is slidably inserted into the baffle (302); Spring (304), which is movably sleeved on the outside of guide rod (303).

6. The detachable cam structure according to claim 4, characterized in that, The sliding support mechanism includes: A slider (305), one end of which is fixedly connected to a baffle (302); The support frame (306) has a groove on the slider (305), and one end of the support frame (306) is rotatably connected to a rotating shaft, which is fixedly installed inside the groove.

7. The detachable cam structure according to claim 6, characterized in that, The sliding support mechanism further includes: The fixing block (307) is fixedly installed on the limiting seat (301). The fixing block (307) has a slot, and the support frame (306) cooperates with the inner cavity of the slot.

8. The detachable cam structure according to claim 6, characterized in that, The limiting seat (301) is provided with a sliding groove, and the slider (305) cooperates with the inner cavity of the sliding groove.

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