A damping structure based on rotary transmission

Abstract

The present invention discloses a damping structure based on a rotary transmission method, comprising a first sleeve, a second sleeve, an axis core, a rotating sleeve, a compression spring and a damper, wherein the axis core is installed in the first sleeve, the lower end of the axis core is inserted in the rotating sleeve, the wall surface of the axis core is provided with a spiral groove, the rotating sleeve is installed in the second sleeve, the wall surface of the rotating sleeve is provided with a circular hole, a steel ball is provided in the circular hole, the steel ball slides with the spiral groove, so that the rotating sleeve drives the axis core to move up and down when it rotates, the compression spring is arranged in the rotating sleeve, and one end of the compression spring contacts the axis core, and the other end contacts the first adjustment mechanism for adjusting the rotation force of the rotating sleeve, and the damper is installed on the end of the axis core away from the rotating sleeve. The damping structure based on the rotary transmission method of the present invention has the advantages of simple structure, easy installation, disassembly and maintenance, and easy processing.

Description

Technical Field

[0001] The present invention relates to the technical field of buffers, and in particular to a damping structure based on a rotary transmission mode. Background Art

[0002] Damping buffers are used to dissipate impact energy, and the most common type is a hydraulic damping buffer. Their working principle is as follows: when a hydraulic damping buffer is subjected to an impact force, it pushes the piston inside the buffer to move, and at the same time, the oil in the buffer chamber is squeezed out of the throttle port and into another chamber. At this time, the friction between the throttle port and the oil, as well as the internal friction between the oil molecules, creates a damping force on the impact load. This process consumes a large amount of kinetic energy and acts as a buffer. However, when a hydraulic damping buffer is subjected to an impact load, due to the built-in oil circuit to achieve the buffering effect, a high oil pressure will be generated locally in the buffer chamber. The structure of the door for adjusting the tension and opening and closing is relatively complex and requires good sealing, resulting in complex processing and high production costs. Summary of the Invention

[0003] The purpose of the present invention is to provide a damping structure based on a rotary transmission mode, which solves the problems raised in the above background technology.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a damping structure based on a rotary transmission method, comprising a first sleeve, a second sleeve, an axis core, a rotating sleeve, a compression spring and a damper, the axis core being installed in the first sleeve, the lower end of the axis core being inserted in the rotating sleeve, the wall surface of the axis core being provided with a spiral groove, the rotating sleeve being installed in the second sleeve, the wall surface of the rotating sleeve being provided with a circular hole, a steel ball being provided in the circular hole, the steel ball slidingly fitting with the spiral groove so that the rotating sleeve drives the axis core to move up and down when it rotates, the compression spring being arranged in the rotating sleeve, and one end of the compression spring being in contact with the axis core, and the other end being in contact with an adjusting mechanism for adjusting the rotation force of the rotating sleeve, the damper being installed on the end of the axis core away from the rotating sleeve, the protruding end of the damper being in contact with the axis core, and the other end being in contact with the second adjusting mechanism for adjusting the damping force of the damper.

[0005] Preferably, a plane bearing is provided between the first sleeve and the second sleeve, and the plane bearing is sleeved on the rotating sleeve.

[0006] Preferably, a slide bar is provided on the shaft core along the length direction, and a slide groove is provided on the first sleeve corresponding to the latch pin, and the slide groove is slidably matched with the slide bar.

[0007] Preferably, a latch is embedded on the outer wall of the rotating sleeve, and a positioning groove is formed on the second sleeve corresponding to the latch, and the positioning groove is adapted to the latch.

[0008] Preferably, the first adjustment mechanism includes a first nut and a first adjusting screw, the first nut is installed at the end of the second sleeve away from the first sleeve, the first adjusting screw is threadedly connected to the first nut, and the first adjusting screw contacts one end of the compression spring.

[0009] Preferably, the second adjustment mechanism includes a second nut and a second adjusting screw, the second nut is mounted on the end of the first sleeve away from the second sleeve, the second adjusting screw is threadedly connected in the second nut, and the second adjusting screw contacts one end of the damper.

[0010] Compared with the prior art, the beneficial effects of the present invention are: by installing the steel ball in the circular hole on the outer wall of the sleeve, and slidingly cooperating with the spiral groove on the shaft core, when the sleeve is rotated, the steel ball slides on the spiral groove, driving the shaft core to move up and down, thereby realizing the conversion from linear motion to rotational motion, and the compression spring serves as pressure energy storage, with one end in contact with the shaft core and the other end in contact with the adjustment mechanism. During the opening and closing process, it can push the shaft core to retract, and at the same time cooperate with the damper to produce a damping effect, so that the shaft core slowly retracts. The damping structure based on the rotary transmission method of the present invention has the advantages of simple structure, easy installation, disassembly and maintenance, and easy processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional schematic diagram of the present invention.

[0012] Figure 2 It is a schematic top view of the present invention.

[0013] Figure 3 for Figure 2 Schematic cross-sectional view at AA in the middle.

[0014] Figure 4 It is an explosion diagram of the present invention.

[0015] Figure 5 This is a schematic structural diagram of the rotating shaft sleeve in the closed state of the present invention.

[0016] Figure 6 This is a schematic structural diagram of the rotating sleeve in the open state of the present invention.

[0017] Figure 7 Schematic diagram of the connection between the first sleeve and the shaft core in the present invention.

[0018] Figure 8 Schematic diagram of the connection between the second sleeve and the rotating sleeve in the present invention.

[0019] In the figure: first sleeve 1, slide groove 11, second sleeve 2, positioning groove 21, shaft core 3, spiral groove 31, slide bar 32, rotating sleeve 4, round hole 41, steel ball 42, latch 43, compression spring 5, damper 6, plane bearing 7, first nut 81, first adjusting screw 82, second nut 91, second adjusting screw 92. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] like Figures 1 to 8 The damping structure based on the rotary transmission mode shown in the figure includes a first sleeve 1, a second sleeve 2, an axis core 3, a rotating sleeve 4, a compression spring 5 and a damper 6, wherein the axis core 3 is installed in the first sleeve 1, and the lower end of the axis core 3 is inserted in the rotating sleeve 4. The wall surface of the axis core 3 is provided with a spiral groove 31, and the rotating sleeve 4 is installed in the second sleeve 2. The wall surface of the rotating sleeve 4 is provided with a circular hole 41, and a steel ball 42 is provided in the circular hole 41. The steel ball 42 slides with the spiral groove 31, so that the rotating sleeve 4 drives the axis core 3 to move up and down when it rotates. The compression spring 5 is arranged in the rotating sleeve 4, and one end of the compression spring 5 contacts the axis core 3, and the other end contacts the adjustment mechanism for adjusting the rotation force of the rotating sleeve 4. The damper 6 is installed on the axis core 3 At one end away from the rotating sleeve 4, the protruding end of the damper 6 is in contact with the shaft core 3, and the other end is in contact with a second adjustment mechanism for adjusting the damping force of the damper 6. By installing the steel ball 42 in the circular hole 41 on the outer wall of the sleeve, it slides with the spiral groove 31 on the shaft core 3. When the sleeve is rotated, the steel ball 42 slides on the spiral groove 31, driving the shaft core 3 to move up and down, thereby realizing the conversion from linear motion to rotational motion. The compression spring 5 serves as a pressure energy storage, with one end in contact with the shaft core 3 and the other end in contact with the adjustment mechanism. During the opening and closing process, it can push the shaft core 3 to retract, and at the same time cooperate with the damper 6 to produce a damping effect, so that the shaft core 3 slowly retracts. The damping structure based on the rotary transmission method of the present invention has the advantages of simple structure, easy installation, disassembly and maintenance, and easy processing.

[0022] In this embodiment, a plane bearing 7 is provided between the first sleeve 1 and the second sleeve 2 . The plane bearing 7 is sleeved on the rotating sleeve 4 , which can reduce the friction between the first sleeve 1 and the second sleeve 2 .

[0023] In this embodiment, a slide bar 32 is provided on the shaft core 3 along the length direction, and a slide groove 11 is formed on the first sleeve 1 corresponding to the latch pin 43 , and the slide groove 11 is slidably engaged with the slide bar 32 .

[0024] In this embodiment, a latch 43 is embedded on the outer wall of the rotating sleeve 4 , and a positioning groove 21 is formed on the second sleeve 2 corresponding to the latch 43 . The positioning groove 21 is adapted to fit the latch 43 .

[0025] In this embodiment, the first adjustment mechanism includes a first nut 81 and a first adjusting screw 82. The first nut 81 is installed at the end of the second sleeve 2 away from the first sleeve 1. The first adjusting screw 82 is threadedly connected to the first nut 81, and the first adjusting screw 82 is in contact with one end of the compression spring 5. The force of the rotating sleeve 4 can be adjusted by twisting the adjusting screw 82.

[0026] In this embodiment, the second adjustment mechanism includes a second nut 91 and a second adjusting screw 92. The second nut 91 is installed at the end of the first sleeve 1 away from the second sleeve 2. The second adjusting screw 92 is threadedly connected to the second nut 91, and the second adjusting screw 92 is in contact with one end of the damper 6. Not only can the damping force of the damper 6 be adjusted to one or two sections by twisting the second adjusting screw 92, but the second nut 91 can also be twisted out to remove the damper 6, which is convenient for replacing the damper 6 and beneficial for later disassembly and maintenance.

[0027] When the first sleeve 1 and the second sleeve 2 rotate relative to each other, the compression spring 5 can be twisted to store elastic potential energy until the steel ball 42 cooperates with the limit part at the upper end of the spiral groove 31 and is stuck in the limit part, thereby fixing the angle of the buffer. The force of the compression spring 5 is not enough to retract the steel ball 42, thereby keeping the buffer at the specified opening angle. When the buffer is rotated by external force, the steel ball 42 retracts to the normal track of the spiral groove 31, and the first sleeve 1 and the second sleeve 2 are closed under the action of the compression spring 5, and the buffer is slowly closed by the damping action of the damper 6.

[0028] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A damping structure based on a rotary transmission method, characterized in that: It comprises a first sleeve (1), a second sleeve (2), a shaft core (3), a rotating sleeve (4), a compression spring (5) and a damper (6); The shaft core (3) is installed in the first sleeve (1), the lower end of the shaft core (3) is inserted into the rotating sleeve (4), and the wall surface of the shaft core (3) is provided with a spiral groove (31); The rotating sleeve (4) is installed in the second sleeve (2), and a circular hole (41) is provided on the wall of the rotating sleeve (4). A steel ball (42) is provided in the circular hole (41). The steel ball (42) is slidably matched with the spiral groove (31), so that when the rotating sleeve (4) rotates, the shaft core (3) is driven to move up and down. The compression spring (5) is arranged in the rotating sleeve (4), and one end of the compression spring (5) contacts the shaft core (3), and the other end contacts a first adjustment mechanism for adjusting the rotation force of the rotating sleeve (4), the first adjustment mechanism comprising a first nut (81) and a first adjustment screw (82), the first nut (81) being mounted on the end of the second sleeve (2) away from the first sleeve (1), the first adjustment screw (82) being threadedly connected to the first nut (81), and the first adjustment screw (82) being in contact with one end of the compression spring (5); The damper (6) is mounted on one end of the shaft core (3) away from the rotating sleeve (4), the protruding end of the damper (6) contacts the shaft core (3), and the other end contacts a second adjustment mechanism for adjusting the damping force of the damper (6), the second adjustment mechanism includes a second nut (91) and a second adjustment screw (92), the second nut (91) is mounted on the end of the first sleeve (1) away from the second sleeve (2), the second adjustment screw (92) is threadedly connected in the second nut (91), and the second adjustment screw (92) contacts one end of the damper (6).

2. The damping structure based on the rotary transmission mode according to claim 1, characterized in that: A plane bearing (7) is provided between the first sleeve (1) and the second sleeve (2), and the plane bearing (7) is sleeved on the rotating sleeve (4).

3. The damping structure based on the rotary transmission mode according to claim 1, characterized in that: A slide bar (32) is provided on the shaft core (3) along the length direction, and a slide groove (11) is provided on the first sleeve (1) corresponding to the slide bar (32), and the slide groove (11) is slidably matched with the slide bar (32).

4. The damping structure based on a rotary transmission mode according to claim 1, characterized in that: A latch (43) is embedded on the outer wall of the rotating shaft sleeve (4), and a positioning groove (21) is formed on the second sleeve (2) corresponding to the latch (43), and the positioning groove (21) is adapted to the latch (43).

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