Ratchet wheel self-locking damping shaft device

Abstract

The invention discloses a ratchet wheel self-locking damping shaft device, which relates to the technical field of reel fastening and comprises a fixed shaft, a front fixed ratchet wheel fluted disc, a movable shaft, a rear movable ratchet wheel fluted disc, a telescopic bolt, 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 invention relates to the technical field of reel fastening, and in particular to a ratchet self-locking damping shaft device. Background Art

[0002] With the continuous improvement of the level of industrial automation, various roll-type packaging materials are being used more and more widely, including but not limited to material rolls, net 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 net rolls) directly affect the quality and efficiency of the final product.

[0003] Most traditional clamping shaft devices 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 packaging material is installed on the traditional clamping shaft and is disturbed by external factors such as vibration or speed changes caused by the operation of the equipment, the fixings (such as bolts) on the clamping shaft are prone to loosening, resulting in the gradual weakening of the clamping force. The loss of this clamping force will directly lead 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, it is necessary to stop the machine for tightening, affecting its work efficiency; secondly, the manual bolt pre-tightening and tensioning methods of the traditional clamping shaft 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 replaced, this inefficient clamping method will 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 prior art. Summary of the invention

[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 loading and clamping 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 present invention 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 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 of the outer side of the moving shaft, the limiting spring is arranged between the moving shaft and the rear movable ratchet gear plate, and one end of the limiting spring is in contact with the limiting washer;

[0011] Long holes are arranged on both sides of the position where the rear movable ratchet gear plate is arranged on the movable shaft, and round holes corresponding to the positions of the long holes are arranged on both sides of the rear movable ratchet gear plate, and 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 round 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 bite into 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 bite into each other.

[0013] Preferably, a positioning block is provided on the inner side of the front fixed ratchet gear disc, 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 shaft away from the rear movable ratchet gear plate; 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 support arm; the end of the fixed axis away from the front fixed ratchet gear plate is sequentially sleeved with two deep groove ball bearings and a damping spacer from the inside to the outside, the front damping sleeve is sleeved outside the deep groove ball bearing and the damping spacer, and the damping support arm is provided with an arc-shaped recessed portion, and the arc-shaped recessed portion of the damping support 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 support arm, and the damping support arm is connected to the connecting plate at one end via a central axis and at the other end via 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, the fixed shaft and the movable shaft inside the deep groove ball bearing are provided with shaft elastic retaining rings; the outer side of the damping spacer and the outer side of the deep groove ball bearing of the movable shaft are provided with hole elastic retaining rings.

[0021] Beneficial effects of the present invention:

[0022] (1) The present invention comprises two parts, namely 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 achieve one-way meshing. The damping system comprises a front damping sleeve, a rear damping sleeve, a damping spacer sleeve 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 rotating 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 changes during use. This 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 that require frequent replacement of packaging materials, thereby improving production efficiency.

[0023] (3) In the damping device of the present invention, the damping sheet 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 overall structure of the present invention is compact, the design is reasonable, the various components fit closely together, the space occupied is small, and it is easy to install and maintain; in particular, the use of the limit spring and the limit connecting pin enables the rear movable ratchet gear plate to smoothly approach the front fixed ratchet gear plate, ensuring the smooth progress of the self-locking process.

[0025] (5) The present invention 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 present invention has strong adaptability and is suitable for a variety of reel-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 durability and easy maintainability during long-term use; for example, a nut and a locking washer are provided inside the front fixed ratchet gear disc to effectively prevent loosening, and the design of the movable self-locking brace makes the device easy to operate when unlocking is required, with low maintenance costs. 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 the 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 toothed disc 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 It is a schematic diagram of the structure 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 figure:

[0037] 1-fixed axis; 101-positioning groove; 2-front fixed ratchet gear disc; 201-positioning block; 3-moving axis; 301-long hole; 302-long groove; 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 toothed sleeve; 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-middle axis; 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 and the accompanying drawings to further describe the technical solutions of the present invention, but 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 help fully understand 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, the description of known functions and structures is omitted.

[0039] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features of the embodiments may 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 loading and clamping 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 toothed disc 2, a moving shaft 3, a rear movable ratchet toothed disc 4, a telescopic latch 5, a limit spring 6, a limit connecting pin 7, and a movable self-locking toothed sleeve 11; the front fixed ratchet toothed disc 2 is sleeved on one end of the fixed shaft 1; the rear movable ratchet toothed disc 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 toothed disc 4; a limit washer 8 is provided in the middle part of the outer side of the moving shaft 3, and the limit spring 6 is arranged between the moving shaft 3 and the rear movable ratchet toothed disc 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 toothed disc 4, and the rear movable ratchet toothed disc 4 is provided with long holes 301 on both sides of the position of the long hole 301 Corresponding to the circular hole, the end of the telescopic latch 5 inserted into the movable shaft 3 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 bite 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] The self-locking process of this embodiment is as follows: the telescopic latch 5 is rotated one circle so that the two ends of the positioning plate of the telescopic latch 5 enter the tooth opening 1101. The telescopic latch 5 drives the limit connecting pin 7 to rotate while rotating. Restricted by the long hole 301 and the round hole, the limit connecting pin 7 moves along the long hole 301, thereby driving the rear movable ratchet gear disc 4 to move in the direction close to the front fixed ratchet gear disc 2 until the teeth of the two ratchet gear discs bite each other, and the front fixed ratchet gear disc 2 and the rear movable ratchet gear disc 4 are bitten and locked due to the tension of the limiting spring. The teeth of the front fixed ratchet gear disc 2 and the rear movable ratchet gear disc 4 are designed to be one-way meshing, that is, they can only rotate in one direction and will be stuck in the other direction. Once the two ratchet gear discs are fully bitten, the rear movable ratchet gear disc 4 can no longer rotate in the opposite direction, thereby realizing the self-locking function, ensuring that the reel-type packaging materials are absolutely locked 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 bevel of the tooth mouth 1101, thereby making the rear movable ratchet tooth plate 4 move away from the front fixed ratchet tooth plate 2, separating the two ratchet tooth plates, and releasing the bite state of the two, and using the wrench to rotate the telescopic latch 5 in the opposite direction to separate the moving shaft 3, so that the reel packaging material can be replaced, and the reel material is positioned by the outer retaining ring of the front fixed ratchet tooth plate 2, so as to ensure that the moving shaft 3 is smoothly reinstalled. After reinstalling the moving shaft 3, the telescopic latch 5 is rotated by the 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 inside the front fixed ratchet toothed disc 2, and a positioning groove 101 is provided outside the end of the fixed shaft 1, and the positioning block 201 is located in the positioning groove 101 to ensure the coaxiality of the front fixed ratchet toothed disc 2 and the fixed shaft 1. A nut 9 and a locking washer 10 are also provided inside the front fixed ratchet toothed disc 2 for fixing and preventing 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 at one end of the fixed shaft 1 away from the front fixed ratchet gear plate 2, the front damping sleeve 12 is sleeved outside the deep groove ball bearing 13 and the damping spacer 14, 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 one end of the moving 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 arranged in the front damping sleeve 12 and the rear damping sleeve 17. When the reel material is clamped and locked, the reel 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, so that the damping plate 15, the front damping sleeve 12, the damping spacer 14, and the rear damping sleeve 17 play a good shock absorption and damping effect 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 is connected to the connecting plate 18 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 inside 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, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0050] In the description of the present application, it should be understood that the terms "upper", "lower", etc. 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 the present 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 the present application.

[0051] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0052] The specific embodiments described herein are merely examples of the spirit of the present application. A person skilled in the art of the present application may make various modifications or additions to the specific embodiments described or replace them in a similar manner, but this will not deviate from the spirit of the present application or exceed the scope defined by the attached claims.

Claims

1. A ratchet self-locking damping shaft device, characterized in that: include: A fixed shaft (1), a front fixed ratchet toothed disc (2), a movable shaft (3), a rear movable ratchet toothed disc (4), a telescopic latch (5), a limit spring (6), and a 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 toothed disc (4) is sleeved on one end of the moving shaft (3), and the telescopic latch (5) is inserted into the interior of the moving shaft (3) from the end of the moving shaft (3) away from the rear movable ratchet toothed disc (4); A limiting washer (8) is provided in the middle of the outer side of the movable shaft (3); the limiting spring (6) is arranged between the movable shaft (3) and the rear movable ratchet toothed disc (4); 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 toothed disc (4) is provided on the movable shaft (3), and round holes (401) corresponding to the positions of the long holes (301) are provided on both sides of the rear movable ratchet toothed disc (4); the end of the telescopic latch (5) inserted into the movable shaft (3) vertically penetrates 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 round hole (401) in sequence; One end of the movable shaft (3) provided with a rear movable ratchet toothed disc (4) can be inserted into one end of the fixed shaft (1) provided with a front fixed ratchet toothed disc (2), and the opposite ends of the front fixed ratchet toothed disc (2) and the rear movable ratchet toothed disc (4) are provided with teeth that can mesh with each other, and rotating the telescopic latch (5) can drive the rear movable ratchet toothed disc (4) to approach the front fixed ratchet toothed 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. A ratchet self-locking damping shaft device according to claim 1, characterized in that: The device further comprises a movable self-locking toothed brace (11), which is rotatably sleeved on one end of the movable shaft (3) away from the rear movable ratchet toothed disc (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 toothed brace (11), wherein one side of the tooth opening (1101) is a beveled side; and the positioning plate at the end of the telescopic latch (5) is capable of entering or moving out of the tooth opening (1101).

4. A 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 sheet (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 at one end of the fixed shaft (1) away from the front fixed ratchet gear plate (2); a front damping sleeve (12) is sleeved outside the deep groove ball bearing (13) and the damping spacer (14); an arc-shaped recessed portion is provided on the damping support arm (16); and the arc-shaped recessed portion of the damping support arm (16) is pressed onto the outside of the front damping sleeve (12) through a damping sheet (15).

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

6. A 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 support arm (16); one end of the damping support 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. A ratchet self-locking damping shaft device according to claim 4, characterized in that: The damping sheet (15) is made of wool felt.

8. A 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. A ratchet self-locking damping shaft device according to claim 5, characterized in that: A shaft elastic retaining ring (21) is provided on the fixed shaft (1) and the movable shaft (3) inside the deep groove ball bearing (13); a hole elastic retaining ring (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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