Adjustable hoisting damper

Abstract

The utility model discloses an adjustable hoisting damper. Relates to the field of hoisting equipment and comprises a guide cylinder body, a partition plate and two pistons, guide rods are arranged on the two pistons, and the two guide rods are arranged in a mirror image mode relative to the partition plate; one end of the guide rod extends out of the guide cylinder body, the guide rod is coaxially sleeved with an adjusting plate, a damping spring is arranged on the adjusting plate, and the two ends of the damping spring are connected with the adjusting plate and the inner wall of the guide cylinder body respectively; the guide cylinder body is further provided with a driving assembly used for driving the adjusting plate to slide. According to the damper, through the arrangement of the adjusting block and the limiting assembly, limiting of the limiting assembly on the guide rod is omitted, the guide rod is rotated, and the relative position of the adjusting plate on the guide rod is changed, so that the initial pre-tightening force of the damping spring is changed, the damping capacity of the damper can be adjusted, and the damper is better suitable for different working conditions.

Description

Technical Field

[0001] The utility model relates to the field of hoisting equipment, in particular to an adjustable hoisting damper. Background Art

[0002] With the rapid development of modern industrial technology, hoisting equipment plays a vital role in various production activities. However, hoisting equipment often generates vibrations during operation, which may not only affect the stability and service life of the equipment, but also cause swings during hoisting and transportation, affecting the stability of the hoisting equipment during hoisting and the high precision of the assembly process; therefore, a shock-absorbing damper is usually installed on the hook.

[0003] The existing conventional damper includes a guide cylinder body, in which two pistons are slidably connected, a partition fixed in the cylinder body is provided between the two pistons, the space between the two pistons is filled with damping fluid, and a through hole for the damping fluid to flow is provided on the partition body; both pistons are connected to a guide rod, a spring is wound around the guide rod, and the two ends of the spring are respectively connected to the piston and the cylinder body; one end of the guide rod extends out of the cylinder body and is provided with a connecting end; the two connecting ends are respectively connected to the hanging piece and the hook of the lifting equipment; when lifting, the spring and the damping fluid buffer the vibration of the hanging piece.

[0004] The conventional damper cannot adjust its overall stiffness and damping coefficient; however, when the mass of the hanging parts is different, it cannot be adjusted according to the actual situation, and cannot achieve full, effective and efficient shock absorption and energy absorption. Utility Model Content

[0005] In order to adjust the damping coefficient of the damper to achieve efficient shock absorption and be suitable for different hanging parts, the present application provides an adjustable hanging damper.

[0006] The present application provides an adjustable suspension damper, which adopts the following technical solution:

[0007] An adjustable lifting damper comprises a guide cylinder, a partition and two pistons, and is characterized in that: guide rods are provided on both pistons, and the two guide rods are mirror-imaged with respect to the partition; one end of the guide rod extends out of the guide cylinder, an adjustment plate is coaxially sleeved on the guide rod, a shock-absorbing spring is provided on the adjustment plate, and the two ends of the shock-absorbing spring are respectively connected to the adjustment plate and the inner wall of the guide cylinder; a driving component for driving the adjustment plate to slide is also provided on the guide cylinder.

[0008] Optionally, the driving component is a guide rod, the surface of the guide rod is provided with a thread, the adjustment plate is threadedly sleeved on the guide rod, the adjustment plate is provided with a plurality of sliders, the inner wall of the guide cylinder body is provided with a plurality of slide grooves spaced apart along its circumferential direction, the slide grooves are arranged along the length direction of the guide cylinder body, the slider is slidably connected in the slide groove, and the guide cylinder body is also provided with a limit assembly for limiting the rotation of the guide rod.

[0009] Optionally, the limiting assembly includes a locator and a brake block, the brake block is fixedly connected to the guide rod, the brake block is provided with a plurality of locating grooves along the circumferential direction of the guide rod, the locator is rotatably connected to the guide cylinder body, and the locator is rotated to insert into or disengage from the locating groove.

[0010] Optionally, the positioning groove is an elongated groove, and its length direction is arranged along the length direction of the guide rod.

[0011] Optionally, the positioner includes an insertion rod and a rotating plate, the insertion rod is fixedly connected to the rotating plate and is used to be inserted into the positioning groove; the rotating plate is rotatably connected to the guide cylinder body.

[0012] Optionally, a limit spring is further provided on the guide cylinder body, and two ends of the limit spring are fixedly connected to the rotating plate and the guide cylinder body respectively; when the limit spring is in a natural filling state, the insertion rod is inserted into the positioning groove.

[0013] Optionally, a connector is provided at one end of the guide rod extending out of the guide cylinder body.

[0014] In summary, this application includes the following beneficial technical effects:

[0015] The present application cancels the limitation of the guide rod by the limiting assembly through the setting of the adjustment block and the limiting assembly, rotates the guide rod, changes the relative position of the adjustment plate on the guide rod, and thus changes the initial preload force of the shock absorbing spring, so that the shock absorbing capacity of the damper can be adjusted to better suit different working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the overall structural diagram of the adjustable hanging damper of the present application;

[0017] Figure 2 About Figure 1 Structural diagram of the locator.

[0018] Description of reference numerals:

[0019] 1. Guide cylinder; 11. Piston; 12. Partition plate; 13. Slide groove; 2. Guide rod; 21. Connector; 3. Adjustment block; 31. Slider; 4. Shock-absorbing spring; 5. Positioner; 51. Insert rod; 52. Closing plate; 53. Limit spring; 6. Brake block; 61. Positioning groove. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1-2 This application is described in further detail.

[0021] The embodiment of the present application discloses an adjustable lifting damper, which includes a guide cylinder body 1, in which two pistons 11 are slidably connected, and a partition 12 is provided between the two pistons 11; each piston 11 is connected to a guide rod 2, and the two guide rods 2 are mirror-imaged with respect to the partition 12, one end of the guide rod 2 extends out of the guide cylinder body 1 and is provided with a connecting head 21; the guide rod 2 is provided with an external thread and an adjustment plate is threadedly sleeved, and the adjustment plate is provided with two sliders 31 at intervals along the circumferential direction of the guide rod 2, and correspondingly, two slide grooves 13 along the length direction of the guide cylinder body 1 are provided on the inner wall of the guide cylinder body 1, and the slider 31 is slidably connected in the slide groove 13, so that the relative position of the adjustment block 3 on the guide rod 2 can be changed by rotating the guide rod 2, and at the same time, a limit assembly for limiting the rotation of the guide rod 2 is also provided on the guide cylinder body 1.

[0022] A damping spring 4 is also provided in the guide cylinder 1, one end of which is fixedly connected to the adjustment plate, and the other end of which is fixedly connected to the top wall of the guide cylinder 1; it should be noted that Figure 1 The state in is that the damper is not connected to the hanger and the shock-absorbing spring 4 is in a compressed state. At the same time, the spring is in a compressed state during the entire lifting process. If the relative position of the adjustment plate on the guide rod 2 is changed, the initial compression amount of the shock-absorbing spring 4 is changed. Because, if the guide rod 2 needs to be pulled, a greater force is required, which changes the overall shock absorption coefficient of the damper.

[0023] In the present application, the limiting assembly includes a locator 5 and a brake block 6. The brake block 6 is coaxially fixedly connected to the guide rod 2 and is located outside the guide cylinder body 1. The brake block 6 is provided with a plurality of positioning grooves 61 spaced apart along its own circumferential direction. The positioning grooves 61 are long strip grooves, and their length direction is arranged along the length direction of the guide rod 2; the locator 5 includes a rotating plate and an insertion rod 51. The insertion rod 51 is fixedly connected to the rotating plate, and the rotating plate is rotatably connected to the outer wall of the guide cylinder body 1. The rotating plate rotates to drive the insertion rod 51 to insert into or disengage from the positioning groove 61; when the insertion rod 51 is inserted into the positioning groove 61, the guide rod 2 cannot rotate; in order to enhance the limiting effect, a limiting spring 53 is also provided on the guide cylinder body 1, one end of the limiting spring 53 is fixedly connected to the outer wall of the guide cylinder body 1, and the other end is fixedly connected to the sealing plate 52. When the limiting spring 53 is in a natural state, the insertion rod 51 is inserted into the positioning groove 61.

[0024] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An adjustable suspension damper, comprising a guide cylinder (1), a partition (12) and two pistons (11), characterized in that: A guide rod (2) is provided on each of the two pistons (11), and the two guide rods (2) are arranged in a mirror image with respect to the partition (12); one end of the guide rod (2) extends out of the guide cylinder body (1), an adjustment plate is coaxially sleeved on the guide rod (2), a shock absorbing spring (4) is provided on the adjustment plate, and two ends of the shock absorbing spring (4) are respectively connected to the adjustment plate and the inner wall of the guide cylinder body (1); the guide cylinder body (1) is also provided with a driving component for driving the adjustment plate to slide.

2. An adjustable suspension damper according to claim 1, characterized in that: The driving component is a guide rod (2), the surface of which is provided with a thread, the adjusting plate is threadedly sleeved on the guide rod (2), the adjusting plate is provided with a plurality of slide blocks (31), the inner wall of the guide cylinder body (1) is provided with a plurality of slide grooves (13) spaced apart along its circumferential direction, the slide grooves (13) are arranged along the length direction of the guide cylinder body (1), the slide blocks (31) are slidably connected in the slide grooves (13), and the guide cylinder body (1) is also provided with a limit assembly for limiting the rotation of the guide rod (2).

3. The adjustable suspension damper according to claim 2, characterized in that: The limiting assembly comprises a locator (5) and a brake block (6); the brake block (6) is fixedly connected to the guide rod (2); the brake block (6) is provided with a plurality of locating grooves (61) along the circumferential direction of the guide rod (2); the locator (5) is rotatably connected to the guide cylinder body (1); the locator (5) is rotated to be inserted into or out of the locating groove (61).

4. The adjustable suspension damper according to claim 3, characterized in that: The positioning groove (61) is a long strip groove, and its length direction is arranged along the length direction of the guide rod (2).

5. The adjustable suspension damper according to claim 3, characterized in that: The positioner (5) comprises an insertion rod (51) and a rotating plate. The insertion rod (51) is fixedly connected to the rotating plate and is used to be inserted into the positioning groove (61). The rotating plate is rotatably connected to the guide cylinder body (1).

6. An adjustable suspension damper according to claim 5, characterized in that: The guide cylinder body (1) is also provided with a limit spring (53), and the two ends of the limit spring (53) are respectively fixedly connected to the rotating plate and the guide cylinder body (1); when the limit spring (53) is in a natural loading state, the insertion rod (51) is inserted into the positioning groove (61).

7. The adjustable suspension damper according to claim 1, characterized in that: One end of the guide rod (2) extending out of the guide cylinder body (1) is provided with a connector (21).

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