Ratchet wheel self-locking damping shaft device

Abstract

The utility model discloses a ratchet wheel self-locking damping shaft device which comprises a fixed shaft, a front fixed ratchet wheel fluted disc, a movable shaft, a rear movable ratchet wheel fluted disc, a telescopic plug pin, a limiting spring and a limiting connecting pin. The front fixed ratchet fluted disc is sleeved at one end of the fixed shaft; the rear movable ratchet fluted disc is sleeved at one end of the movable shaft; the telescopic bolt is inserted from the other end of the movable shaft; the limiting spring is arranged between the moving shaft and the rear moving ratchet wheel fluted disc; one end of the limiting spring is in contact with the limiting gasket on the moving shaft; a long hole is formed in the movable shaft, a round hole corresponding to the long hole in position is formed in the rear movable ratchet wheel fluted disc, a limiting connecting pin is arranged at the end, inserted into the movable shaft, of the telescopic bolt, and the two ends of the limiting connecting pin sequentially penetrate through the long hole, the limiting spring and the round hole. One end of the movable shaft can be inserted into one end of the fixed shaft, teeth capable of being meshed with each other are arranged at the opposite ends of the front fixed ratchet fluted disc and the rear movable ratchet fluted disc, and the rear movable ratchet fluted disc can be driven to get close to the front fixed ratchet fluted disc until the two are meshed by rotating the telescopic bolt.

Description

Technical Field

[0001] The utility model relates to the technical field of reel fastening, in particular to a ratchet self-locking damping shaft device. Background Art

[0002] With the continuous improvement of industrial automation levels, various roll-type packaging materials are being used more and more widely, including but not limited to material rolls, mesh rolls, film rolls, etc. The application of these materials in industrial production involves multiple industries, such as food processing, agricultural machinery, packaging manufacturing, etc.; especially in the field of agricultural machinery, such as straw feed balers, the stability and reliability of roll-type packaging materials (such as mesh rolls) directly affect the quality and efficiency of the final product.

[0003] Traditional clamping shaft devices mostly rely on mechanical fixing methods such as manual bolt pre-tightening or tensioning. These traditional methods can provide the necessary clamping force during initial installation to ensure the stability of the packaging material on the reel. However, in actual use, these devices face many challenges and limitations. First, when the reel-type packaging material is installed on a traditional clamping shaft and is disturbed by external factors such as vibration or speed changes caused by the operation of the equipment, the fixing parts (such as bolts) on the clamping shaft can easily loosen, causing the clamping force to gradually weaken. This loss of clamping force directly leads to the loosening of the packaging material, which in turn affects the normal operation of the equipment and the integrity of the packaging material. At this time, the equipment must be stopped for tightening, affecting its work efficiency. Second, the manual bolt pre-tightening and tensioning methods of traditional clamping shafts are not only cumbersome to operate, but also require a lot of manpower and material resources. In a production environment where packaging materials need to be frequently changed, this inefficient clamping method can seriously affect production efficiency.

[0004] In view of the above problems, it is urgent to develop a new type of roll packaging material clamping device to effectively solve the shortcomings of the existing technology. Utility Model Content

[0005] In order to solve the above problems, the present application provides a ratchet self-locking damping shaft device, which can be directly used for the net roll packaging of the straw feed baler. It has self-locking and damping functions, can effectively prevent the packaging material from loosening, and improve production efficiency and quality.

[0006] To achieve its purpose, the utility model adopts the following technical solutions:

[0007] A ratchet self-locking damping shaft device, comprising: a fixed shaft, a front fixed ratchet gear plate, a movable shaft, a rear movable ratchet gear plate, a telescopic latch, a limit spring, and a limit connecting pin;

[0008] The front fixed ratchet gear disc is sleeved on one end of the fixed shaft;

[0009] The rear movable ratchet gear disc is sleeved on one end of the moving shaft, and the telescopic latch is inserted into the interior of the moving shaft from the end of the moving shaft away from the rear movable ratchet gear disc;

[0010] A limiting washer is provided at the middle portion of the outer side of the movable shaft, and the limiting spring is provided between the movable shaft and the rear movable ratchet gear plate, with one end of the limiting spring in contact with the limiting washer;

[0011] Long holes are provided on both sides of the position where the rear movable ratchet gear plate is provided on the movable shaft, and circular holes corresponding to the positions of the long holes are provided on both sides of the rear movable ratchet gear plate. The end of the telescopic latch inserted into the movable shaft vertically passes through the limit connecting pin, and the two ends of the limit connecting pin pass through the long hole, the limit spring, and the circular hole in sequence.

[0012] The movable shaft is provided with an end of a rear movable ratchet gear disc which can be inserted into an end of a fixed shaft provided with a front fixed ratchet gear disc, and the opposite ends of the front fixed ratchet gear disc and the rear movable ratchet gear disc are provided with teeth which can engage with each other, and rotating the telescopic latch can drive the rear movable ratchet gear disc to approach the front fixed ratchet gear disc until the two engage with each other.

[0013] Preferably, a positioning block is provided on the inner side of the front fixed ratchet gear plate, a positioning groove is provided on the outer side of the fixed shaft end, and the positioning block is located in the positioning groove; a nut and a locking washer are also provided inside the front fixed ratchet gear.

[0014] Preferably, the device also includes a movable self-locking brace, which is rotatably mounted on one end of the movable ratchet gear plate after the movable shaft moves away; long grooves are provided on both sides of the end of the movable shaft, and teeth are provided on both sides of the movable self-locking brace, and one side of the teeth is a beveled edge; the positioning plate at the end of the telescopic pin can enter or move out of the teeth.

[0015] Preferably, the device also includes a front damping sleeve, a deep groove ball bearing, a damping spacer, a damping plate, and a damping arm; two deep groove ball bearings and a damping spacer are sequentially sleeved from the inside to the outside at one end of the fixed shaft away from the front fixed ratchet gear plate, and a front damping sleeve is sleeved outside the deep groove ball bearing and the damping spacer, and the damping arm is provided with an arc-shaped recessed portion, and the arc-shaped recessed portion of the damping arm is pressed onto the outside of the front damping sleeve through the damping plate.

[0016] Preferably, the device further comprises a rear damping sleeve, which is sleeved on the outside of one end of the moving shaft away from the rear movable ratchet gear plate through two deep groove ball bearings.

[0017] Preferably, a connecting plate is provided on the fixed axis outside the damping arm, and the damping arm and the connecting plate are connected at one end through a central axis and at the other end through an adjusting bolt.

[0018] Preferably, the damping plate is made of wool felt.

[0019] Preferably, the front damping sleeve, the damping spacer sleeve and the rear damping sleeve are made of nylon.

[0020] Preferably, shaft elastic retaining rings are provided on the fixed shaft and the movable shaft inside the deep groove ball bearing; hole elastic retaining rings are provided on the outside of the damping spacer and the outside of the deep groove ball bearing of the movable shaft.

[0021] Beneficial effects of the utility model:

[0022] (1) The utility model includes two parts: a ratchet mechanism and a damping device. The front fixed ratchet gear plate and the rear movable ratchet gear plate of the ratchet mechanism can realize one-way meshing. The damping system includes a front damping sleeve, a rear damping sleeve, a damping spacer and a damping plate, which can effectively reduce the vibration and noise during the operation of the equipment. After the device is pre-tightened by self-locking, no other device is required for locking. Self-locking and unlocking can be achieved by simply turning the telescopic pin. The predetermined damping position can be adjusted by rotating the adjustment bolt. After locking, a constant effect can be achieved, ensuring that the packaging material will not loosen due to external vibration or speed change during use. It not only improves the stability of the packaging material, but also significantly improves the operating safety and reliability of the equipment. No complicated tools or steps are required, which greatly reduces the operation time and labor costs. It is particularly suitable for production environments where packaging materials need to be frequently replaced, thereby improving production efficiency.

[0023] (3) In the damping device of the present invention, the damping plate is made of wool felt, and the front damping sleeve and the rear damping sleeve are made of nylon. These materials have good shock absorption and wear resistance, thereby extending the service life of the device.

[0024] (4) The utility model has a compact structure and reasonable design, with close fit between the various components, small space occupation, and easy installation and maintenance; in particular, the use of a limit spring and a limit connecting pin enables the rear movable ratchet gear disc to smoothly approach the front fixed ratchet gear disc, ensuring the smooth progress of the self-locking process.

[0025] (5) The utility model has good stability. By providing the elastic retaining ring for the shaft and the elastic retaining ring for the hole, the stability and reliability of the deep groove ball bearing and the damping spacer are ensured, and these components are prevented from sliding in the axial or radial direction during use. This not only improves the mechanical strength of the device, but also enhances the overall stability.

[0026] (6) The overall device of the utility model has strong adaptability and is suitable for a variety of roll-type packaging materials, such as material rolls, net rolls, film rolls, etc. It is particularly suitable for straw feed balers in the field of agricultural machinery. Its self-locking and damping functions can effectively meet the needs under different working conditions and ensure the stability and reliability of packaging materials in various environments.

[0027] (7) The overall device of the present invention is easy to maintain, and the design and material selection of each component take into account the durability and ease of maintenance during long-term use; for example, a nut and a locking washer are provided inside the front fixed ratchet gear disc, which can effectively prevent loosening, and the design of the movable self-locking braces makes the device easy to operate when unlocking is required, and the maintenance cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] For ease of explanation, the present invention is described in detail with reference to the following specific implementations and accompanying drawings.

[0029] Figure 1 Schematic diagram of the overall structure of this embodiment;

[0030] Figure 2 This is a schematic diagram of the fixed shaft and the movable shaft being separated in this embodiment;

[0031] Figure 3 Schematic diagram of the internal structure of the ratchet gear plate and the damping sleeve of this embodiment;

[0032] Figure 4 This is a schematic diagram of the telescopic latch structure of this embodiment;

[0033] Figure 5 This is a schematic structural diagram of the movable shaft and the movable self-locking braces of this embodiment;

[0034] Figure 6 This is a schematic structural diagram of the front fixed ratchet gear plate and the fixed shaft of this embodiment;

[0035] Figure 7 Schematic diagram of the structure of the front fixed ratchet gear of this embodiment.

[0036] In the picture:

[0037] 1-fixed shaft; 101-positioning slot; 2-front fixed ratchet gear disc; 201-positioning block; 3-moving shaft; 301-long hole; 302-long slot; 4-rear movable ratchet gear disc; 5-telescopic latch; 6-limit spring; 7-limit connecting pin; 8-limit washer; 9-nut; 10-stop washer; 11-movable self-locking socket; 1101-tooth mouth; 12-front damping sleeve; 13-deep groove ball bearing; 14-damping spacer; 15-damping plate; 16-damping support arm; 17-rear damping sleeve; 18-connecting plate; 19-center shaft; 20-adjusting bolt; 21-elastic retaining ring for shaft; 22-elastic retaining ring for hole. DETAILED DESCRIPTION

[0038] The following are specific embodiments of the present invention, which, in conjunction with the accompanying drawings, further describe the technical solutions of the present invention. However, the present invention is not limited to these embodiments. In the following description, specific details such as specific configurations and components are provided only to facilitate a comprehensive understanding of the embodiments of the present invention. Therefore, it should be clear to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present invention. In addition, for the sake of clarity and brevity, descriptions of known functions and structures have been omitted.

[0039] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0040] like Figure 1-7 As shown, a ratchet self-locking damping shaft device provided in this embodiment can be directly used for the net roll packaging of the straw feed baler. It has self-locking and damping functions, can effectively prevent the packaging material from loosening, and improve production efficiency and quality.

[0041] The ratchet self-locking damping shaft device comprises: a fixed shaft 1, a front fixed ratchet tooth plate 2, a moving shaft 3, a rear movable ratchet tooth plate 4, a telescopic latch 5, a limit spring 6, a limit connecting pin 7, and a movable self-locking sleeve 11; the front fixed ratchet tooth plate 2 is sleeved on one end of the fixed shaft 1; the rear movable ratchet tooth plate 4 is sleeved on one end of the moving shaft 3, and the telescopic latch 5 is inserted into the moving shaft 3 from the end of the moving shaft 3 away from the rear movable ratchet tooth plate 4; a limit washer 8 is provided in the middle of the outer side of the moving shaft 3, and a limit spring 6 is provided between the moving shaft 3 and the rear movable ratchet tooth plate 4, and one end of the limit spring 6 is in contact with the limit washer 8; long holes 301 are provided on both sides of the position where the moving shaft 3 is provided with the rear movable ratchet tooth plate 4, and the rear movable ratchet tooth plate 4 is provided with long holes 301 on both sides Corresponding to the circular hole, the telescopic latch 5 is inserted into the end of the movable shaft 3 and vertically passes through the limit connecting pin 7, and the two ends of the limit connecting pin 7 pass through the long hole 301, the limit spring 6, and the circular hole in sequence; the movable shaft 3 is provided with an end of the rear movable ratchet gear plate 4 which can be inserted into the interior of the end of the fixed shaft 1 provided with the front fixed ratchet gear plate 2, and the opposite ends of the front fixed ratchet gear plate 2 and the rear movable ratchet gear plate 4 are provided with teeth that can engage with each other; the movable self-locking brace 11 is rotatably sleeved on the end of the movable shaft 3 away from the rear movable ratchet gear plate 4; long grooves 302 are provided on both sides of the end of the movable shaft 3, and teeth 1101 are provided on both sides of the movable self-locking brace 11, and one side of the tooth mouth 1101 is a beveled side; the positioning plate at the end of the telescopic latch 5 can enter or move out of the tooth mouth 1101.

[0042] When the two gears are fully engaged, the rear movable ratchet gear 4 can no longer rotate in the opposite direction, thereby realizing the self-locking function and ensuring that the reel packaging material reaches an absolute locked state during use and will not loosen.

[0043] The unlocking process of this embodiment is as follows: when unlocking is required, the movable self-locking sleeve 11 is rotated by a wrench, and the positioning plate of the telescopic latch 5 located in the tooth mouth 1101 is moved out of the tooth mouth 1101 under the action of the oblique edge of the tooth mouth 1101, thereby making the rear movable ratchet gear plate 4 move away from the front fixed ratchet gear plate 2, separating the two ratchet gear plates, and releasing the bite state of the two. The telescopic latch 5 is rotated in the opposite direction with a wrench to separate the dynamic shaft 3, and the reel packaging material can be replaced. The reel material is positioned by the outer retaining ring of the front fixed ratchet gear plate 2, thereby ensuring that the dynamic shaft 3 is smooth when reinstalled. After reinstalling the dynamic shaft 3, the telescopic latch 5 is rotated by a wrench for one circle to make its positioning plate fall into the tooth mouth 1101 for locking.

[0044] Furthermore, a positioning block 201 is provided on the inner side of the front fixed ratchet gear plate 2, and a positioning groove 101 is provided on the outer side of the end of the fixed shaft 1. The positioning block 201 is located in the positioning groove 101 to ensure the coaxiality of the front fixed ratchet gear plate 2 and the fixed shaft 1. A nut 9 and a locking washer 10 are also provided inside the front fixed ratchet gear plate 2 to fix and prevent loosening.

[0045] Furthermore, the device also includes a front damping sleeve 12, a deep groove ball bearing 13, a damping spacer 14, a damping plate 15, a damping arm 16, and a rear damping sleeve 17; two deep groove ball bearings 13 and a damping spacer 14 are sequentially sleeved from the inside to the outside of the end of the fixed shaft 1 away from the front fixed ratchet gear plate 2, and the front damping sleeve 12 is sleeved on the outside of the deep groove ball bearing 13 and the damping spacer 14, and the damping arm 16 is provided with an arc-shaped recessed portion, and the arc-shaped recessed portion of the damping arm 16 is pressed onto the outside of the front damping sleeve 12 through the damping plate 15; the rear damping sleeve 17 is sleeved on the outside of the end of the movable shaft 3 away from the rear movable ratchet gear plate 4 through two deep groove ball bearings 13; the damping plate 15 is made of wool felt, and the front damping sleeve 12, the damping spacer 14 and the rear damping sleeve 17 are made of nylon.

[0046] Specifically, two deep groove ball bearings 13 are respectively installed in the front damping sleeve 12 and the rear damping sleeve 17. When the spool material is clamped and locked, the spool material can rotate through the deep groove ball bearings 13. The damping plate 15 is made of wool felt, and the front damping sleeve 12 and the damping spacer 14 are made of nylon. This ensures that the damping plate 15, the front damping sleeve 12, the damping spacer 14, and the rear damping sleeve 17 provide excellent shock absorption and damping effects during the rotation of the fixed shaft 1 and the movable shaft 3.

[0047] Furthermore, a connecting plate 18 is provided on the fixed axis 1 outside the damping arm 16. The damping arm 16 and the connecting plate 18 are connected at one end through a central axis 19 and at the other end through an adjusting bolt 20. The clamping force of the damping arm 16 can be adjusted by adjusting the bolt 20, thereby controlling the damping effect.

[0048] Furthermore, shaft elastic retaining rings 21 are provided on the fixed shaft 1 and the movable shaft 3 on the inner side of the deep groove ball bearing 13 to prevent the deep groove ball bearing 13 from sliding in the axial direction, thereby ensuring the stability and reliability of the bearing; hole elastic retaining rings 22 are provided on the outer side of the damping spacer 14 and the outer side of the deep groove ball bearing 13 of the movable shaft 3 to prevent the damping spacer 14 and the deep groove ball bearing 13 from sliding in the radial direction, thereby further enhancing the stability of the device.

[0049] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0050] In the description of this application, it should be understood that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this application.

[0051] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0052] The specific embodiments described herein are merely illustrative of the spirit of the present application. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present application or exceeding the scope defined by the appended claims.

Claims

1. A ratchet self-locking damping shaft device, characterized in that: include: Fixed shaft (1), front fixed ratchet gear plate (2), movable shaft (3), rear movable ratchet gear plate (4), telescopic latch (5), limit spring (6), limit connecting pin (7); The front fixed ratchet toothed disc (2) is sleeved on one end of the fixed shaft (1); The rear movable ratchet tooth plate (4) is sleeved on one end of the movable shaft (3), and the telescopic latch (5) is inserted into the interior of the movable shaft (3) from the end of the movable shaft (3) away from the rear movable ratchet tooth plate (4); A limiting washer (8) is provided in the middle of the outer side of the movable shaft (3), and the limiting spring (6) is provided between the movable shaft (3) and the rear movable ratchet gear plate (4), and one end of the limiting spring (6) is in contact with the limiting washer (8); Long holes (301) are provided on both sides of the position where the rear movable ratchet tooth plate (4) is provided, and round holes (401) corresponding to the positions of the long holes (301) are provided on both sides of the rear movable ratchet tooth plate (4). The telescopic latch (5) is inserted into the end of the movable shaft (3) and vertically penetrates the limit connecting pin (7). The two ends of the limit connecting pin (7) pass through the long hole (301), the limit spring (6), and the round hole (401) in sequence. One end of the movable shaft (3) provided with a rear movable ratchet gear disc (4) can be inserted into one end of the fixed shaft (1) provided with a front fixed ratchet gear disc (2), and the opposite ends of the front fixed ratchet gear disc (2) and the rear movable ratchet gear disc (4) are provided with teeth that can mesh with each other, and rotating the telescopic latch (5) can drive the rear movable ratchet gear disc (4) to approach the front fixed ratchet gear disc (2) until the two mesh with each other.

2. A ratchet self-locking damping shaft device according to claim 1, characterized in that: A positioning block (201) is provided on the inner side of the front fixed ratchet toothed disc (2), a positioning groove (101) is provided on the outer side of the end of the fixed shaft (1), and the positioning block (201) is located in the positioning groove (101); A nut (9) and a stop washer (10) are also provided inside the front fixed ratchet toothed disc (2).

3. The ratchet self-locking damping shaft device according to claim 1, characterized in that: The device further comprises a movable self-locking brace (11), which is rotatably sleeved on one end of the movable shaft (3) away from the rear movable ratchet tooth plate (4); long grooves (302) are provided on both sides of the end of the movable shaft (3); and tooth openings (1101) are provided on both sides of the movable self-locking brace (11), and one side of the tooth opening (1101) is a beveled edge; and the positioning plate at the end of the telescopic latch (5) can enter or move out of the tooth opening (1101).

4. The ratchet self-locking damping shaft device according to claim 1, characterized in that: The device also includes a front damping sleeve (12), a deep groove ball bearing (13), a damping spacer (14), a damping plate (15), and a damping support arm (16); Two deep groove ball bearings (13) and a damping spacer (14) are sequentially sleeved from the inside to the outside on one end of the fixed shaft (1) away from the front fixed ratchet gear disc (2); a front damping sleeve (12) is sleeved outside the deep groove ball bearings (13) and the damping spacer (14); an arc-shaped recessed portion is provided on the damping arm (16); and the arc-shaped recessed portion of the damping arm (16) is pressed onto the outside of the front damping sleeve (12) through a damping plate (15).

5. The ratchet self-locking damping shaft device according to claim 4, characterized in that: The device further comprises a rear damping sleeve (17), which is sleeved on the outside of one end of the movable shaft (3) away from the rear movable ratchet gear disc (4) through two deep groove ball bearings (13).

6. The ratchet self-locking damping shaft device according to claim 4, characterized in that: A connecting plate (18) is provided on the fixed axis (1) outside the damping arm (16); one end of the damping arm (16) and the connecting plate (18) are connected via a central axis (19) and the other end is connected via an adjusting bolt (20).

7. The ratchet self-locking damping shaft device according to claim 4, characterized in that: The damping sheet (15) is made of wool felt.

8. The ratchet self-locking damping shaft device according to claim 5, characterized in that: The front damping sleeve (12), the damping spacer sleeve (14) and the rear damping sleeve (17) are made of nylon material.

9. The ratchet self-locking damping shaft device according to claim 5, characterized in that: A shaft elastic circlip (21) is provided on the fixed shaft (1) and the movable shaft (3) inside the deep groove ball bearing (13); a hole elastic circlip (22) is provided on the outside of the damping spacer (14) and the deep groove ball bearing (13) of the movable shaft (3).

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