A kind of net machine's press knot axle buffer mechanism

Abstract

The utility model relates to fishing net machine technical field, concretely relates to a kind of fishing net machine's compression joint shaft buffer mechanism, comprising: main shaft and compression joint shaft;Swing bar with movable hole is opened, and one end of the main shaft is penetrated movable hole;Driving part, it is fixedly connected with the main shaft;Driven part, it is rotatably connected with the swing bar and keeps contact with driving part;Swing arm, one end is fixedly connected with the compression joint shaft, and the other end of the swing arm is movably connected with swing bar.The utility model is added with main body, so that the main shaft and main body can be connected using bearing cooperation mode, i.e. the main shaft and main body are rotatably connected, and rolling support structure is arranged between main body and movable hole of swing bar, so that the main body and movable hole are rolling contact, the original main shaft-waist type hole sliding friction is converted into rolling friction, reduce hole wall and main shaft abrasion, prolong service life, while sliding impact can be eliminated, reduce vibration amplitude, guarantee compression joint precision.

Description

Technical Field

[0001] This utility model relates to the field of fishing net machine technology, and in particular to a pressure shaft buffer mechanism for a fishing net machine. Background Technology

[0002] The pressing shaft of the fishing net machine needs to continuously apply a buffering force during the swinging process; otherwise, the instantaneous impact force during pressing of the fishing net will be too large and will break the net line.

[0003] To solve this problem, Chinese utility model patent CN216193168U (an improvement on CN202830398U) proposes a buffering solution: the main shaft drives the cam to rotate, pushing the buffer swing arm to compress the spring, so that the pressure shaft can obtain buffering force.

[0004] However, the agency has a fundamental flaw:

[0005] When the cam drives the rocker arm with the waist-shaped hole to move, the waist-shaped hole needs to slide back and forth along the surface of the main shaft. Since the two are in pure sliding friction contact, long-term operation will cause severe wear between the waist-shaped hole and the surface of the main shaft, increase the fit clearance, reduce the motion accuracy of the pressing shaft, affect the uniformity of the fishing net pressing, and the high-frequency impact vibration generated by sliding friction will accelerate the fatigue damage of the components and increase the equipment maintenance cost.

[0006] Therefore, reducing frictional losses between the waist-shaped hole and the main shaft is key to improving the reliability of fishing net machines. Utility Model Content

[0007] In view of this, the purpose of this utility model is to propose a pressure shaft buffer mechanism for a fishing net machine to solve the problem.

[0008] To achieve the above objectives, this utility model provides a pressing shaft buffer mechanism for a fishing net machine, comprising:

[0009] Main shaft and press-fit shaft;

[0010] A rocker arm with a movable hole, one end of the main shaft passing through the movable hole;

[0011] A drive component, which is fixedly connected to the main shaft;

[0012] The driven member is rotatably connected to the rocker arm and maintains contact with the driving member;

[0013] The swing arm has one end fixedly connected to the pressing shaft and the other end movably connected to the swing rod. When the main shaft rotates axially, the swing rod is driven to reciprocate along the length of the movable hole through the cooperation of the driving member and the driven member, and the pressing shaft is driven to swing through the swing arm.

[0014] A main body is disposed in the movable hole, and the main body is rotatably connected to the main shaft;

[0015] A rolling support structure is provided in the contact area between the main body and the movable hole, so that the main body and the movable hole can roll into contact.

[0016] As a preferred embodiment of this utility model, the main body is provided with a bearing groove, a bearing is provided in the bearing groove, and the main shaft passes through the bearing.

[0017] As a preferred embodiment of this utility model, the rolling support structure includes rolling support portions disposed opposite to each other on both sides of the main body, the rolling support portion comprising:

[0018] A guide plate, one side of which is fixedly connected to the main body, and the other side of the guide plate forms a groove that is adapted to the sliding of the swing arm;

[0019] A rolling element is disposed on the groove so that the groove and the rocker arm make rolling contact, thereby converting sliding friction into rolling friction and reducing transmission impact and vibration.

[0020] As a preferred embodiment of this invention, the rolling element is a pulley.

[0021] As a preferred technical solution of this utility model, the guide plate is provided with a bracket for rotatably connecting the pulley end shaft in its groove, and the bracket is provided with a rotating hole adapted to the pulley end shaft.

[0022] As a preferred embodiment of this utility model, the guide plate is a plate-like structure with a U-shaped cross-section.

[0023] As a preferred embodiment of this utility model, the driving component is a cam fixedly connected to the main shaft, and the driven component is a driven wheel rotatably disposed on the side of the rocker arm near the cam.

[0024] As a preferred embodiment of this utility model, the rocker arm is provided with a rocker arm shaft at its other end relative to the driven wheel. A rocker arm pin is slidably sleeved at one end of the rocker arm shaft, and the rocker arm pin is rotatably connected to the rocker arm. A locking nut is provided at the other end of the rocker arm shaft that passes through the rocker arm pin. A spring is sleeved on the outside of the rocker arm shaft. The two ends of the spring are in contact with the rocker arm pin and the locking nut, respectively. The tension of the spring drives the rocker arm shaft to slide relative to the rocker arm pin, so that the driven wheel on the rocker arm always keeps in contact with the cam on the main shaft.

[0025] The beneficial effects of this utility model are as follows: By adding a main body, the main shaft and the main body can be connected by bearings, that is, the main shaft and the main body are rotatably connected. A rolling support structure is set between the main body and the movable hole of the rocker arm, so that the main body and the movable hole make rolling contact, which transforms the sliding friction of the original main shaft-waist hole into rolling friction, reduces the wear of the hole wall and the main shaft, extends the service life, and at the same time eliminates sliding impact, reduces vibration amplitude, and ensures the pressing accuracy. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the front-end three-dimensional structure of this utility model;

[0028] Figure 2 This is a three-dimensional structural diagram of the rear end of this utility model;

[0029] Figure 3 This is a partial three-dimensional structural diagram of the present invention;

[0030] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0031] Figure 5 This is a three-dimensional structural diagram of the main body, guide plate, and pulley of this utility model.

[0032] The markings in the diagram are as follows: 1. Main shaft; 2. Pressing shaft; 3. Rocker arm; 4. Movable hole; 5. Rocker arm shaft; 6. Rocker arm pin; 7. Rocker arm; 8. Locking nut; 9. Spring; 10. Main body; 11. Bearing groove; 12. Bearing; 13. Guide plate; 14. Bracket; 15. Pulley; 16. Bolt; 17. Bolt hole; 18. Cam; 19. Driven wheel. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0034] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0035] like Figure 1 and Figure 2 As shown, a clamping shaft buffer mechanism for a fishing net machine includes: a main shaft 1 and a clamping shaft 2; a swing arm 3 with a movable hole 4, one end of the main shaft 1 passing through the movable hole 4; a driving member, which is fixedly connected to the main shaft 1; a driven member, which is rotatably connected to the swing arm 3 and keeps in contact with the driving member; a swing arm 7, one end of which is fixedly connected to the clamping shaft 2, and the other end of which is movably connected to the swing arm 3. When the main shaft 1 rotates axially, the swing arm 3 is driven to reciprocate along the length direction of the movable hole 4 through the cooperation of the driving member and the driven member, and the clamping shaft 2 is driven to swing through the swing arm 7; a main body 10 disposed in the movable hole 4, which is rotatably connected to the main shaft 1; and a rolling support structure disposed in the contact area between the main body 10 and the movable hole 4, so that the main body 10 and the movable hole 4 make rolling contact.

[0036] The above technical solution can effectively reduce the friction between the swing arm 3 and the main shaft 1. When in use, the fishing net machine is started, the main shaft 1 drives the drive component to rotate, and the drive component drives the swing arm 3 to reciprocate along the length direction of the movable hole 4 through the cooperation of the driven component. Then, the swing arm 3 drives the swing arm 7 to swing, and the swing arm 7 drives the pressing shaft 2 to swing. Since the main shaft 1 only rotates and does not move synchronously with the swing arm 3, the two will generate relative motion. The rolling support structure on the side of the main body 10 can reduce the friction between the main shaft 1 and the hole wall in the movable hole 4 and convert sliding friction into rolling friction, thereby improving the efficiency of the mechanism and reducing wear and heat generation.

[0037] like Figure 5 As shown, in this embodiment, the main body 10 has a bearing groove 11, a bearing 12 is provided in the bearing groove 11, and the main shaft 1 passes through the bearing 12.

[0038] The above technical solution can reduce the rotational friction at the connection between the main body 10 and the main shaft 1.

[0039] like Figure 3 and Figure 4 As shown, in this embodiment, the rolling support structure includes rolling support parts disposed opposite to each other on both sides of the main body 10. The rolling support parts include: a guide plate 13, one side of which is fixedly connected to the main body 10, and the other side of the guide plate 13 forms a groove that is adapted to slide with the rocker arm 3; a rolling body, which is disposed on the groove so that the groove and the rocker arm 3 roll into contact; preferably, the rolling body is a pulley 15, and the guide plate 13 is provided with a bracket 14 in its groove for rotatably connecting the end shaft of the pulley 15. The bracket 14 is provided with a rotating hole adapted to the end shaft of the pulley 15. The guide plate 13 is a plate structure with a U-shaped cross section. The surface of the guide plate 13 is provided with bolt holes 17, and bolts 16 are disposed in the bolt holes 17. One end of the bolt 16 is screwed into a threaded hole on the surface of the main body 10.

[0040] The above technical solution allows the pulley 15 to replace the guide plate 13 in contact with the movable hole 4, achieving rolling contact instead of sliding friction contact. The rolling element can also adopt other structures, such as balls, rollers, and needle rollers.

[0041] like Figure 1 and Figure 2 As shown, in this embodiment, the driving component is a cam 18 fixedly connected to the main shaft 1, and the driven component is a driven wheel 19 rotatably disposed on the side of the rocker arm 3 near the cam 18; the rocker arm 3 is provided with a rocker arm shaft 5 at its other end relative to the driven wheel 19, a rocker arm pin 6 is slidably sleeved on one end of the rocker arm shaft 5, the rocker arm pin 6 is rotatably connected to the rocker arm 7, a locking nut 8 is provided at the other end of the rocker arm shaft 5 that passes through the rocker arm pin 6, and a spring 9 is sleeved on the outside of the rocker arm shaft 5, with the two ends of the spring 9 contacting the rocker arm pin 6 and the locking nut 8 respectively;

[0042] The above technical solution ensures that the main shaft 1 can drive the pressing shaft 2 to swing. In use, when the main shaft 1 rotates, it will drive the cam 18 to rotate. The cam 18, together with the driven wheel 19, drives the rocker arm 3 to reciprocate along the length of the movable hole 4. When the rocker arm 3 moves, it can drive the rocker arm 7 to swing through the rocker arm pin 6, and then drive the pressing shaft 2 to swing through the rocker arm 7. The tension of the spring 9 causes the rocker arm shaft 5 to slide relative to the rocker arm pin 6, so that the driven wheel 19 on the rocker arm 3 always keeps in contact with the cam 18 on the main shaft 1. This part is the prior art, and its specific details are well known to those skilled in the art, and will not be described in detail here.

[0043] Working principle: When in use, the rotation of the main shaft 1 will drive the cam 18 to rotate. The cam 18, together with the driven wheel 19, drives the rocker arm 3 to reciprocate along the length of the movable hole 4. When the rocker arm 3 moves, it can drive the rocker arm 7 to swing through the rocker arm pin 6, and then drive the pressure shaft 2 to swing through the rocker arm 7. The tension of the spring 9 drives the rocker arm shaft 5 to slide relative to the rocker arm pin 6, so that the driven wheel 19 on the rocker arm 3 always keeps in contact with the cam 18 on the main shaft 1. Since the main shaft 1 only rotates and does not move synchronously with the rocker arm 3, the two will generate relative motion. The pulley 15 on the side of the main body 10 can reduce the friction between the guide plate 13 and the hole wall in the movable hole 4, and convert sliding friction into rolling friction, further reducing transmission impact and vibration, improving mechanism efficiency, and reducing wear and heat generation.

[0044] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0045] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pressure shaft buffer mechanism for a fishing net machine, comprising: Main shaft (1) and press-fit shaft (2); A rocker arm (3) with a movable hole (4) is provided, and one end of the main shaft (1) passes through the movable hole (4). A drive component, which is fixedly connected to the main shaft (1); The driven member is rotatably connected to the rocker arm (3) and keeps in contact with the driving member; The swing arm (7) has one end fixedly connected to the pressing shaft (2) and the other end movably connected to the swing rod (3). When the main shaft (1) rotates axially, the swing rod (3) is driven to reciprocate along the length direction of the movable hole (4) through the cooperation of the driving member and the driven member, and the pressing shaft (2) is driven to swing through the swing arm (7). The mechanism is characterized in that it further includes: A main body (10) is provided in the movable hole (4), and the main body (10) is rotatably connected to the main shaft (1); A rolling support structure is provided in the contact area between the main body (10) and the movable hole (4) so ​​that the main body (10) and the movable hole (4) make rolling contact.

2. The pressing shaft buffer mechanism of the fishing net machine according to claim 1, characterized in that, The main body (10) has a bearing groove (11), a bearing (12) is provided in the bearing groove (11), and the main shaft (1) passes through the bearing (12).

3. The pressing shaft buffer mechanism of the fishing net machine according to claim 2, characterized in that, The rolling support structure includes rolling support portions disposed on opposite sides of the main body (10), the rolling support portions comprising: The guide plate (13) is fixedly connected to the main body (10) on one side, and the other side of the guide plate (13) forms a sliding groove that is adapted to slide with the swing rod (3); A rolling element is provided on the groove so that the groove and the rocker arm (3) make rolling contact, thereby converting sliding friction into rolling friction and reducing transmission impact and vibration.

4. The pressing shaft buffer mechanism of the fishing net machine according to claim 3, characterized in that, The rolling element is a pulley (15).

5. The pressing shaft buffer mechanism of the fishing net machine according to claim 4, characterized in that, The guide plate (13) has a bracket (14) in its groove for rotating and connecting the end shaft of the pulley (15). The bracket (14) has a rotating hole that matches the end shaft of the pulley (15).

6. The pressing shaft buffer mechanism of the fishing net machine according to claim 5, characterized in that, The guide plate (13) is a plate-like structure with a U-shaped cross-section.

7. The pressing shaft buffer mechanism of the fishing net machine according to any one of claims 1-6, characterized in that, The driving component is a cam (18) fixedly connected to the main shaft (1), and the driven component is a driven wheel (19) rotatably disposed on the side of the rocker arm (3) near the cam (18).

8. The pressing shaft buffer mechanism of the fishing net machine according to claim 7, characterized in that, The rocker arm (3) has a rocker arm shaft (5) at the other end relative to the driven wheel (19). One end of the rocker arm shaft (5) is slidably fitted with a rocker arm pin (6). The rocker arm pin (6) is rotatably connected to the rocker arm (7). The rocker arm shaft (5) has a locking nut (8) at the other end that passes through the rocker arm pin (6). A spring (9) is fitted on the outside of the rocker arm shaft (5). The two ends of the spring (9) are in contact with the rocker arm pin (6) and the locking nut (8) respectively. The tension of the spring (9) drives the rocker arm shaft (5) to slide relative to the rocker arm pin (6) so that the driven wheel (19) on the rocker arm (3) always keeps in contact with the cam (18) on the main shaft (1).

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