Cantilever eccentric mechanism

Abstract

The present invention provides a cantilever eccentric mechanism, characterized in that the eccentric mechanism includes an eccentric disk, an eccentric slider, a transmission member and a shaft, wherein the transmission member is sleeved on one end of the shaft, and the transmission member can be connected to an external power mechanism to drive the shaft to rotate; the eccentric disk is detachably arranged at the end of the shaft through the transmission member, and the shaft does not pass through the center of the eccentric disk, and the rotation of the transmission member simultaneously drives the eccentric disk to rotate; the eccentric slider is detachably arranged on the eccentric disk, and can slide along the radial direction of the eccentric disk. The eccentric disk of the mechanism is cantilevered, which has the advantage of convenient disassembly and assembly. At the same time, the eccentric slider on the cantilever eccentric disk can slide along the radial range of the eccentric disk to achieve precise adjustment of large eccentric distance. According to the on-site requirements, the eccentric disk can also be further optimized in design to achieve a combination of multiple eccentric slideways and multiple eccentric sliders, so that it can meet the movement requirements of different types of single / double or more eccentric mechanisms on site.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical components, and in particular to a cantilever eccentric mechanism. Background Art

[0002] The non-cantilever eccentric mechanism in the prior art needs its shaft to pass through the center of the eccentric disk, and the shaft end passes through the center of the eccentric disk, which causes an obstruction in the center position of the eccentric disk. The eccentric slider provided on the eccentric disk can only adjust the eccentricity within the radius of the eccentric disk. Only one eccentric mechanism can be driven on one eccentric shaft. When the eccentric slider rotates to the far end of the connected rocker arm, the eccentric slider needs to be removed to adjust the eccentricity. In particular, when it is necessary to share a main transmission on site to drive two eccentric mechanisms to move synchronously, it is often impossible to implement due to structural problems. The eccentricity adjustment method is time-consuming and labor-intensive, and the adjustment range is limited. Summary of the invention

[0003] The purpose of the present invention is to provide a cantilever eccentric mechanism, the eccentric disk of the mechanism has the advantage of convenient disassembly and assembly, and the eccentric slider on the cantilever eccentric disk can slide along the radial range of the eccentric disk to achieve precise adjustment of large eccentricity, and has the function of arranging and driving two sets of eccentric mechanisms at the same time with the same transmission mechanism, and the two sets of eccentric mechanisms share the same slideway, which has the advantages of compact structure, convenient adjustment, large adjustment range, and strong applicability. According to the needs of the site, the eccentric disk can be further optimized and no longer share the same slideway. The combined slideway is designed as a multi-slideway arrangement with different angles, which can meet the movement requirements of different types of single / double or more eccentric mechanisms on site.

[0004] The present invention is achieved through the following technical solutions:

[0005] A cantilever eccentric mechanism, characterized in that the eccentric mechanism comprises an eccentric disk, an eccentric slider, a transmission member and a shaft, wherein the transmission member is sleeved on one end of the shaft, and the transmission member can be connected to an external power mechanism to drive the shaft to rotate;

[0006] The eccentric disk is detachably arranged on the end of the shaft through the transmission member, and the shaft does not pass through the center of the eccentric disk, and the rotation of the transmission member drives the eccentric disk to rotate at the same time;

[0007] The eccentric sliding block is detachably arranged on the eccentric disk and can slide along the radial direction of the eccentric disk.

[0008] Furthermore, in the above-mentioned cantilever eccentric mechanism, the eccentric disk is a split type, formed by connecting a plurality of plates of the same or different shapes, and an eccentric slide is formed at the joint of every two plates, and each eccentric slide is slidably provided with one or two eccentric sliders in each eccentric slide, and an oil storage tank is provided at the joint between the eccentric slider and the eccentric slide.

[0009] Furthermore, in the above-mentioned cantilever eccentric mechanism, the eccentric disk is a split type, formed by two identical semicircular plates connected in a mirror-image manner, and an eccentric slide is formed at the joint, and the eccentric slider is slidably arranged in the eccentric slide.

[0010] Furthermore, in the above-mentioned cantilever eccentric mechanism, the eccentric slider is arranged in the eccentric slideway, the eccentric slider is provided with a penetrating adjusting screw hole along the direction of the eccentric slideway, and the eccentric slider is provided with a pin shaft hole perpendicular to the direction of the eccentric slideway.

[0011] Furthermore, in the above-mentioned cantilever eccentric mechanism, the eccentric mechanism also includes an eccentric adjustment mechanism, the eccentric adjustment mechanism includes an eccentric adjustment wire, the eccentric adjustment wire is detachably arranged in the eccentric slide, the eccentric adjustment wire is provided with a spiral matching the adjustment wire screw hole, and the eccentric adjustment wire passes through the adjustment wire screw hole and is spirally connected to the eccentric slider.

[0012] Furthermore, in the above-mentioned cantilever eccentric mechanism, the eccentric disk is provided at one end or both ends of the shaft.

[0013] Furthermore, in the above-mentioned cantilever eccentric mechanism, the transmission member includes a transition plate, and the transition plate is arranged concentrically with the eccentric plate and connected to the eccentric plate by bolts.

[0014] Furthermore, in the above-mentioned cantilever eccentric mechanism, the transmission member also includes a sprocket, and the sprocket is sleeved on the shaft and is concentrically arranged with the eccentric disk.

[0015] Furthermore, in the above-mentioned cantilever eccentric mechanism, the transmission member further comprises an articulated sleeve, the articulated sleeve is sleeved on the shaft, and the sprocket is sleeved on the outer wall of the articulated sleeve.

[0016] Furthermore, in the above-mentioned cantilever eccentric mechanism, the articulated sleeve includes an upper sleeve and a lower sleeve that are connected in an opening and closing manner, and two mutually matching tenons and grooves are provided on the radial outer circle mating surfaces of the upper sleeve and the lower sleeve, a key groove is provided on the inner wall of the articulated sleeve, and a flywheel is also provided on the outer surface of the articulated sleeve.

[0017] The benefit of the present invention lies in that a cantilever eccentric mechanism provided by the present invention has the remarkable characteristics of small size, light weight, compact layout structure, large power transmission and high adjustment accuracy. The eccentric disk and the shaft are arranged in a cantilever type, which is conducive to the disassembly, assembly and maintenance of the eccentric disk. At the same time, the eccentric slider on the cantilever eccentric disk can slide within the radial range of the eccentric disk to realize eccentricity adjustment, which has the advantages of convenient adjustment and a large adjustment range. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. Among them:

[0019] Figure 1 A schematic diagram of the structure of the cantilever eccentric disc provided by the present invention;

[0020] Figure 2 It is an assembly diagram of the eccentric disc of the present invention;

[0021] Figure 3 for Figure 2 Left view of

[0022] Figure 4 It is a structural schematic diagram of the eccentric disk of the present invention;

[0023] Figure 5 for Figure 4 Left view of

[0024] Figure 6 A schematic structural diagram of a briquette is provided for the present invention;

[0025] Figure 7 A schematic diagram of the structure of the eccentric slider provided by the present invention;

[0026] Figure 8 An assembly diagram of the eccentric slider provided by the present invention;

[0027] Fig. 9 This is a schematic structural diagram of the shaft provided by the present invention.

[0028] Description of reference numerals:

[0029] 1-eccentric disk; 11-eccentric disk screw hole; 12-pressure block fixing hole; 2-eccentric slider; 21-upper anti-loosening nut; 22-lower anti-loosening nut; 23-adjusting wire screw hole; 24-pin shaft hole; 3-shaft; 4-pressure block; 5-eccentric adjusting wire; 51-copper sleeve; 6-transition plate; 7-sprocket; 8-articulated sleeve; 9-pin shaft. DETAILED DESCRIPTION

[0030] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. Each example is provided by way of explanation of the present invention and does not limit the present invention. In fact, it will be clear to those skilled in the art that modifications and variations may be made in the present invention without departing from the scope or spirit of the present invention. For example, a feature shown or described as a part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desired that the present invention encompasses such modifications and variations within the scope of the appended claims and their equivalents.

[0031] In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention. The terms "connected", "connected" and "set" used in the present invention should be understood in a broad sense. For example, they can be fixedly connected or detachably connected; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0032] The present invention discloses a cantilever eccentric mechanism. Figures 1 to 9 As shown, Figure 1 A schematic diagram of the structure of the cantilever eccentric disc provided by the present invention; Figure 2 It is an assembly diagram of the eccentric disc of the present invention; Figure 3 for Figure 2 Left view of Figure 4 It is a structural schematic diagram of the eccentric disk of the present invention; Figure 5 for Figure 4 Left view of Figure 6 A schematic structural diagram of a briquette is provided for the present invention; Figure 7 A schematic diagram of the structure of the eccentric slider provided by the present invention; Figure 8 An assembly diagram of the eccentric slider provided by the present invention; Fig. 9 This is a schematic structural diagram of the shaft provided by the present invention.

[0033] like Figure 1As shown, the eccentric mechanism includes an eccentric disk 1, an eccentric slider 2, a transmission member and a shaft 3. The difference between the present invention and the prior art is that the prior art adopts the method of directly passing the shaft through the center of the eccentric disk to drive the rotation of the eccentric disk, and in order to ensure the connection strength between the eccentric disk and the shaft, the eccentric disk is set as an integrated structure in the prior art. At this time, the shaft end passes through the center of the eccentric disk, resulting in a limited sliding range of the eccentric slider that slides on the eccentric disk to adjust the eccentricity (can only slide within the radius), and the eccentric slider that cannot pass through the center of the circle is more cumbersome to adjust when the eccentric mechanism stops operating. What is different from the prior art is that the present invention arranges the eccentric disk in a cantilever type, and a transmission member is sleeved on one end of the shaft. The eccentric disk is arranged on one end of the shaft through the transmission member. At this time, the shaft end can be indirectly fixedly connected to the eccentric disk without passing through the center of the eccentric disk, and the eccentric disk is arranged in a split type, and an eccentric slideway is arranged in the middle of the split eccentric disk. The eccentric slider is arranged in the eccentric slideway and can slide within the diameter range of the eccentric disk, thereby increasing the sliding range of the eccentric slider, increasing the adjustment range of the eccentric distance, and increasing the convenience of adjusting the eccentric slider when the eccentric mechanism stops operating. Moreover, the present invention can also drive the eccentric disk to rotate without rotating the shaft, but instead drives the shaft and the eccentric disk to rotate after the transmission member is connected to the external power mechanism. Such an arrangement can increase the service life of the shaft.

[0034] Furthermore, the split eccentric disk provided by the present invention can be formed by splicing a plurality of plates of the same or different shapes, and an eccentric slide is formed at the joint of each two plates. For example, the eccentric disk can be formed by splicing two plates of the same or different shapes, or it can be formed by splicing three or four plates of the same or different shapes, and an eccentric slide is formed at the joint of each two plates, and one or two eccentric sliders can be arranged in each eccentric slide, and each eccentric slider can be connected to an external mechanism. With such arrangement, one eccentric disk can simultaneously drive one or more sets of external mechanisms to move, so as to improve work efficiency. When one eccentric disk simultaneously drives multiple sets of external mechanisms to move, the interference phenomenon caused by the mutual movement of each external mechanism can be avoided through reasonable structural design. Therefore, the cantilever eccentric mechanism provided by the present invention has the characteristics of simple structure and high work efficiency.

[0035] When the eccentric disk is composed of more than two plates, only one eccentric slider can be set in the eccentric slideway formed between the plates. The above-mentioned multiple eccentric slideways are designed to be arranged at different angles, which can meet the needs of different types of single / double or more external mechanisms that require eccentric motion on site. When the eccentric disk is composed of multiple plates, the rotation of the eccentric disk can be reciprocating within a certain angle range, rather than continuous rotation in one direction. When the eccentric disk has only one eccentric slideway and only one eccentric slider is provided in the eccentric slideway, the rotation direction and angle of the eccentric disk can be continuous. Specifically, the above-mentioned transmission member may include a transition disk 6, a sprocket 7 and an articulated sleeve 8. The transmission member of the present invention is sleeved on one end of the shaft 3, the eccentric disk 1 is connected to the transmission member, and is fixedly connected to the shaft 3 through the transmission member, that is, the shaft 3 is connected thereto without passing through the center of the eccentric disk 1, that is, the eccentric disk 1 is cantilevered at one end of the shaft 3, the eccentric slider 2 is slidably arranged in the eccentric disk 1, and a pin is provided on the eccentric slider 2, which can be connected to a connecting rod or other mechanism. When the eccentric disk 1 rotates, the eccentric slider 2 performs a circular motion accordingly. At this time, the mechanism connected to the eccentric slider 2 realizes mechanical motion (which can be periodic swing, etc.) driven by the eccentric slider 2.

[0036] Furthermore, if Figures 2 to 5 As shown, the eccentric disk 1 in this embodiment is a split type, formed by two identical semicircular plates that are mirror-imaged and docked, and an eccentric slide is formed at the docking point of the two semicircular plates. The eccentric slider 2 is arranged in the eccentric slide and can make linear reciprocating motion along the eccentric slide. In this embodiment, an eccentric slider 2 is provided in the eccentric slide. In other embodiments, two eccentric sliders 2 can be provided in the eccentric slide, and each eccentric slider 2 is connected to a set of external mechanisms, which can drive the two sets of external mechanisms to move at the same time. Grooves are provided at the upper and lower ends of the eccentric disk 1. After the two eccentric disks 1 are docked with a gap in the diameter direction, the grooves at the upper and lower ends of the eccentric disk 1 are also docked, and the bottom ends of the upper and lower grooves are provided with pressure block fixing holes 12, as shown in FIG. Figure 6 The shown pressing block 4 is arranged in the groove formed by the spliced ​​eccentric disc 1, and a hole corresponding to the pressing block fixing hole 12 is arranged on the pressing block 4, and the pressing block 4 and the eccentric disc 1 can be fixedly connected by bolts, thereby realizing the fixed connection of the eccentric disc 1 to ensure the stable connection of the eccentric disc 1. The bolts (which can be hexagon socket bolts) are used to connect and fix the two semicircular plates, so that the eccentric disc 1 forms an independent rigid integral disc-shaped component.

[0037] A disc-like structure is formed behind the two eccentric discs 1, on which an eccentric disc screw hole 11 concentric with the disc structure is provided. There are multiple eccentric disc screw holes 11 evenly distributed along the center of the circle for passing bolts to connect to the cantilever of the shaft 3 (the eccentric disc 1 is indirectly connected to the shaft 3).

[0038] like Figure 7 and Figure 8 As shown, a through adjusting screw hole 23 is provided on the eccentric slider 2 along the direction of the eccentric slideway for passing the eccentric adjusting screw 5. A pin hole 24 is provided on the eccentric slider 2 in a direction perpendicular to the eccentric slideway for connecting the pin 9. The eccentric slider 2 is screwed with a pin 9, and is fixed with a locking nut and eccentrically built into the eccentric slideway to form a set of sliding friction moving pairs, and limit the freedom of movement of the eccentric slider 2 in the left and right directions to prevent its circumferential rotation.

[0039] Furthermore, a transition plate 6 is provided between the shaft 3 and the eccentric plate 1. The transition plate 6 is sleeved on the shaft 3, and a screw hole corresponding to the screw hole 11 of the eccentric plate is provided on the transition plate 6. After the bolt passes through the transition plate 6 and the screw hole 11 of the eccentric plate, the transition plate 6 is fixedly connected to the eccentric plate 1, thereby realizing the cantilever connection between the eccentric plate 1 and the shaft 3. Figure 1 A transition plate 6 with the same center as the eccentric plate 1 is provided on one end surface facing the paper, and the eccentric plate 1 is fixed to the transition plate 6 by a hexagon socket bolt. A sliding bearing seat is provided on one side of the transition plate 6, and the eccentric plate 1 is arranged on the outer end surface of the transition plate 6 with a concentric cantilever.

[0040] Furthermore, the above-mentioned eccentric mechanism also includes a sprocket 7. The sprocket 7 is sleeved on the shaft 3 and is non-slidingly connected to the shaft 3. The sprocket 7 can be used for an external chain, and the external chain can also be connected to an external power mechanism to provide power for the rotation of the eccentric mechanism. Furthermore, an articulated sleeve 8 is also provided between the sprocket 7 and the shaft 3. Specifically, one end of the shaft 3 passes through the articulated sleeve 8, and the other end is provided on the sliding bearing seat through a sliding bearing. After the articulated sleeve 8 is sleeved on one end of the above-mentioned shaft 3, a transition disk 6 and / or a sprocket 7 can also be sleeved outside the articulated sleeve. That is, the transition disk 6 and / or the sprocket 7 are provided on the outer circumferential surface of the articulated sleeve 28, and the inner circumferential surface of the articulated sleeve 28 is provided with a keyway, and a flat key is provided inside to cooperate with the flat key of the shaft 3. Under the action of power, the eccentric disk 1 performs synchronous circumferential rotational motion with the transition disk 6, the articulated sleeve 8, the sprocket 7, and the shaft 3. In some alternative embodiments, the sliding bearings herein may also be replaced with other types of bearings.

[0041] Specifically, under the action of external power, the sprocket 7 rotates and drives the transition plate 6, the hinge sleeve 8, and the shaft 3 to rotate, thereby driving the eccentric disc 1 to rotate. The sprocket 7 here can be connected to the cantilever eccentric mechanism by a universal 28A sleeve roller chain for long-distance flexural connection. This transmission form belongs to the typical meshing transmission in mechanical design, which has the characteristics of simple overall structure, accurate and reliable average speed ratio, and low relative installation precision requirements. At the same time, due to its own significant advantages of small axial tension and large transmission center distance, it has strong adaptability to harsh working conditions, long service life, and can reliably transmit the rotary motion between two parallel shafts over long distances. It is suitable for the structural design of long-distance split arrangement of such transmission mechanism and actuator, and the spatial layout is flexible and changeable. It can be selectively arranged and combined according to the actual working conditions on site, which is efficient, reliable, convenient and fast.

[0042] like Fig. 9 As shown, the cantilever eccentric mechanism in the present invention is a split combined set structure, and an eccentric adjustment mechanism is designed separately to fine-tune the size of the eccentric distance of the eccentric mechanism. The eccentric adjustment mechanism adopts a design layout scheme in which the spiral actively supports rotation (the eccentric adjustment wire 5 rotates), and the nut (eccentric slider 2) is driven to reciprocate linearly. The eccentric adjustment mechanism includes an eccentric adjustment wire 5. The eccentric adjustment wire 5 is arranged in an eccentric slideway, and copper sleeves 51 are provided at both ends. The two copper sleeves 51 are respectively fixed on the upper and lower pressure blocks 4. The eccentric adjustment wire 5 can be stably arranged in the eccentric slideway by connecting the copper sleeves 51 at both ends. The copper sleeve 51 can be used to support the stability of the eccentric adjustment wire 5 in the vertical direction, reduce friction resistance, and also limit the axial freedom of the eccentric adjustment wire 5. . The eccentric adjustment wire 5 is provided with a spiral that matches the eccentric slider 2. The eccentric slider 2 is provided with a threaded through hole. The eccentric adjustment wire 5 passes through the through hole and is spirally connected to the eccentric slider 2. Specifically, the eccentric adjustment wire 5 and the eccentric slider 2 are triangular fine-tooth bidirectional conduction sliding spirals. Through the biaxial fixed rotation with the upper and lower copper sleeves 51, the circumferential rotational motion of the spiral is converted into the axial reciprocating linear motion of the eccentric slider 2, thereby forming the eccentric adjustment mechanism.

[0043] Furthermore, when the eccentricity is manually fine-tuned, it can play a role in reducing the wear of the sliding bearing. Considering the "dead point" position of the multi-bar mechanism motion design and the continuity of the rotational motion, the subsequent improved design can add a flywheel component, put a heavy flywheel on the outer surface of the hinge sleeve 8, and firmly connect it with a double flat key arranged at 90 degrees, and use the continuity of its large moment of inertia to drive the connecting rod mechanism to cross the designed "dead point" position to maintain the continuity and stability of the motion.

[0044] When the above-mentioned rotating eccentric adjustment wire 5 is rotated, the eccentric slider 2 is driven to slide up and down in the eccentric slideway accordingly, that is, to make reciprocating linear motion along its axial direction, thereby adjusting the eccentric distance between the eccentric slider 2 and the center of the circle on the eccentric disk 1. The distance between the eccentric slider 2 and the center of the circle on the eccentric disk 1 changes, that is, the actual eccentricity of the pin on the eccentric slider 2 changes, thereby changing the stroke of the external mechanism hinged to the pin 9, and achieving the purpose of fine-tuning the stroke of the external mechanism. After the eccentricity is adjusted, the upper anti-loosening nut 21 and the lower anti-loosening nut 22 provided on the eccentric slider 2 are used to lock the eccentric slider 2 on the eccentric adjustment wire 5 to prevent the eccentricity of the cantilever eccentric mechanism from changing suddenly during the rotary motion. In order to reduce the friction resistance, an "S-shaped" oil storage tank can be designed on the mating end faces on both sides of the eccentric slider 2, and lithium-based lubricating grease can be applied to form a sliding friction lubricating oil film layer.

[0045] Furthermore, in the above-mentioned cantilever eccentric mechanism, a split radial sliding bearing support is used to rigidly support the shaft 3, limit the freedom of movement of the shaft 3 in two directions, and reduce its circumferential rotation friction damping, which has the advantages of simple structure, compact layout, good centering, saving layout space, and convenient maintenance operation. The above-mentioned sliding bearing seat is a split radial sliding bearing seat. Its main components are the upper cover and the lower seat, which are designed as a stepped groove and tenon matching structure, which is convenient for radial positioning, prevents end face displacement, and is tightened with bolts. The sliding bearing is arranged on the sliding bearing seat, and the sliding bearing and the shaft are assembled to form a set of sliding friction pairs, which play a role in system friction reduction and support. Preferably, the sliding bearing is made of tin-zinc-lead bronze ZCuPb5Sn5Zn5 inlaid with solid graphite lubricating rods, which has the characteristics of significantly low hardness, high plasticity, and small elastic modulus, good wear reduction and wear resistance, high compression and impact fatigue strength, and good impact toughness. The solid graphite inlaid on its surface has a self-lubricating function, so that the sliding friction pair can ensure a sufficiently small friction coefficient even in the state of boundary friction and dry friction, reducing the power loss of the system. The sliding bearing uses lithium-based lubricating grease to regularly lubricate from the top M16X1.5 filling hole, which is convenient, efficient and fast.

[0046] Specifically, the articulated sleeve 8 in the above-mentioned cantilever eccentric mechanism adopts a longitudinally split articulated semi-card structure. Without affecting the circumferential outer circle finish, the intersection sleeve 8 is divided into two upper and lower half sleeves, and two convex tenons and groove structures are designed on the radial side outer circle matching surface of the two half sleeves, and they are hinged with a pin shaft to form a hinged opening and closing mechanism that can be opened and closed 90° up and down. A double keyway arranged at 180° is opened on the inner circle surface of the intersection sleeve 8, and a connecting flat key is built in. After being assembled with the shaft 3, a group of hexagon socket bolts are used to fix the two half sleeves and the shaft 3 into a rigid integral component for circumferential positioning. When the articulated sleeve 8 rotates, under the action of the connecting flat key, the shaft 3 also rotates. If the axial string momentum is large during rotation, an axial baffle can also be installed according to the actual working conditions on site for axial positioning. The inner and outer circumferential surfaces of the articulated sleeve 8 are both H7 / h6 mating surfaces, so a high degree of smoothness is required. A built-in hinge and hexagon socket bolt structure design must be adopted on its outer circumferential surface, and a double key groove arranged 180° symmetrically is opened to connect with the transition plate 6 with a double key to transmit the rotational torque.

[0047] Furthermore, the inner circumference of the articulated sleeve 8 is connected to the shaft 3 by double-key transition and is fixed in the circumferential direction. The outer circumference of the articulated sleeve 8 and the transition plate 6 also adopt the double-key transition fit radial load-bearing method. The sprocket 7 is directly mounted on the outer circumference of the articulated sleeve 28 by the method of keyless connection with a small gap fit through an intermediate through hole, and is connected to the transition plate 6 and the eccentric plate 1 by hexagonal reaming bolts to form a rigid integral component, forming a cantilever eccentric mechanism. The shaft 3 of the above-mentioned eccentric mechanism rotates synchronously around the axis of the sliding bearing. The sprocket 7 can be connected to the external power mechanism through an external chain. The chain can drive the sprocket 7 to rotate, and the sprocket 7 drives the articulated sleeve 8 connected thereto and the shaft 3 key-connected to the articulated sleeve 8 to rotate. The articulated sleeve 8 is set to open and close on one side to facilitate disassembly and assembly.

[0048] Since the eccentric disk 1 is cantilevered at one end of the shaft 3, a sliding bearing seat is arranged at the other end of the shaft 3. Preferably, since the eccentric disk 1 is cantilevered on the outer end face of the shaft 3, it is subjected to greater bending stress, and the shaft 3 is at risk of flexural deformation and fatigue fracture, affecting the rigidity of the system. Therefore, a "virtual constraint" implementation scheme is adopted in the motion design, and a group of rigid supports are added. Two sets of sliding bearing seats are adopted, and a structure in which the cantilever beam is arranged side by side with a small spacing and double fulcrums is used on the same side to shorten the cantilever beam bearing arm and improve the system rigidity. This can effectively prevent the occurrence of contact between the shaft 3 and the edge of the sliding bearing caused by eccentric loading, improve the stress condition of the components, and extend the service life.

[0049] Furthermore, a cantilevered eccentric disk 1 can be provided on the other end of the shaft 3, that is, a cantilevered eccentric disk 1 is provided at both ends of the same shaft 3, and the transmission parts between the two eccentric disks 1 and the shaft 3 are the same, and the number of eccentric slideways and eccentric sliders 2 on the split eccentric disk 1 can be the same or different, and can be adjusted and set according to actual work needs.

[0050] Specifically, when external power is connected, the specific movement and torque transmission between the power mechanism and the cantilever eccentric mechanism are as follows: the load-bearing torque transmitted by the power mechanism is transmitted to a set of hexagon socket reaming bolts through the sprocket 7, and the transition plate 6 and the eccentric plate 1 are driven through the connection of the reaming bolts. The articulated sleeve 8 is fixed circumferentially coaxially with the shaft 3, and rotates synchronously circumferentially coaxially under the sliding friction support of two sets of sliding bearings, and outputs torque externally.

[0051] In the design of this scheme, the eccentric disk of the mechanism has the advantage of convenient disassembly and assembly. At the same time, the eccentric slider on the cantilever eccentric disk can slide along the radial range of the eccentric disk to adjust the eccentric distance, which has the advantages of convenient adjustment and a large adjustment range. At the same time, it can also eliminate the errors in part processing and assembly to the greatest extent, and meet the actual needs of on-site working parameters. This design uses aluminum bronze ZcuAL10Fe3 and tin-zinc-lead bronze ZCuPb5Sn5Zn5 and other materials with high mechanical strength and wear resistance. Its notable features are low hardness, high plasticity, small elastic modulus, good running-in, compliance and embedding, and high fatigue strength against compression and impact loads.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cantilever eccentric mechanism, characterized in that: The eccentric mechanism includes an eccentric disk, an eccentric slider, a transmission member and a shaft, wherein the transmission member is sleeved on one end of the shaft, and the transmission member can be connected to an external power mechanism to drive the shaft to rotate; The eccentric disk is detachably arranged on the end of the shaft through the transmission member, and the shaft does not pass through the center of the eccentric disk, and the rotation of the transmission member drives the eccentric disk to rotate at the same time; The eccentric slider is detachably arranged on the eccentric disk and can slide along the radial direction of the eccentric disk; The eccentric disk is a split type, formed by connecting a plurality of plates of the same or different shapes, and an eccentric slideway is formed at the joint of each two plates, and one or two eccentric sliders are slidably arranged in each eccentric slideway, and an oil storage tank is provided at the joint between the eccentric slider and the eccentric slideway; The transmission member comprises a transition plate, which is arranged concentrically with the eccentric plate and connected to the eccentric plate through bolts; The transmission member further comprises a sprocket, which is sleeved on the shaft and is concentrically arranged with the eccentric disk; The transmission member further comprises an articulated sleeve, the articulated sleeve is sleeved on the shaft, and the sprocket is sleeved on the outer wall of the articulated sleeve; The articulated sleeve comprises an upper sleeve and a lower sleeve which are connected in an opening and closing manner, and two mutually cooperating tenons and grooves are arranged on the radial outer circle matching surfaces of the upper sleeve and the lower sleeve, a key groove is arranged on the inner wall of the articulated sleeve, and a flywheel is also arranged on the outer surface of the articulated sleeve.

2. The cantilever eccentric mechanism according to claim 1, characterized in that: The eccentric sliding block is arranged in the eccentric slideway, the eccentric sliding block is provided with a penetrating adjusting screw hole along the direction of the eccentric slideway, and the eccentric sliding block is provided with a pin shaft hole perpendicular to the direction of the eccentric slideway.

3. The cantilever eccentric mechanism according to claim 2, characterized in that: The eccentric mechanism also includes an eccentric adjustment mechanism, which includes an eccentric adjustment wire. The eccentric adjustment wire is detachably arranged in the eccentric slideway, and the eccentric adjustment wire is provided with a spiral that matches the adjustment wire screw hole. The eccentric adjustment wire passes through the adjustment wire screw hole and is spirally connected to the eccentric slider.

4. The cantilever eccentric mechanism according to claim 1, characterized in that: The eccentric disk is provided at one end or both ends of the shaft.

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