Damping rotating shaft

Abstract

The utility model discloses a damping rotating shaft, which belongs to the technical field of rotating shafts and comprises a rotating shaft body, the top end of the rotating shaft body is fixedly connected with a mounting part, the bottom end of the rotating shaft body is provided with a spring groove, the top wall of the spring groove is fixedly connected with a clamping part, and the circumferential surface of the clamping part is provided with a group of snap spring grooves. The group of snap spring grooves are positioned on the lower side of the rotating shaft body; according to the damping rotating shaft, the clamping spring groove is used for installing the clamping spring to limit the rotating position of the connecting piece on the clamping part, the compression spring placed in the spring groove replaces a butterfly-shaped gasket to provide damping force, the elastic force of the compression spring is constant, the clamping spring is locked stably and is not prone to loosening, and the damping effect can be effectively guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a rotating shaft technical field more specifically, relate to a damping rotating shaft. BACKGROUND

[0002] The damping rotating shaft is a rotating shaft with damping, and the working principle is mainly based on the control of internal damping mechanism and friction, the stable rotation of the rotating shaft is realized by accurately controlling the friction between the rotating shaft and the connecting piece, and it can ensure that the connecting piece stops rotating and stably stays at the specified position.

[0003] The authorized publication number "CN215567230U" discloses a rotating shaft with limiting damping, which comprises a flip connecting piece, a limiting block, a torsion shaft and a fixing assembly, one end of the flip connecting piece is provided with a first circular hole, the torsion shaft passes through the first circular hole and is connected with the fixing assembly; the torsion shaft is provided with a threaded portion, two symmetrical shoulder planes are formed in the axial direction of the threaded portion, the limiting block is provided with a second through hole matched with the threaded portion, and the threaded portion passes through the second through hole, the first circular hole and the fixing assembly in sequence, wherein, the end of the limiting block close to the first circular hole protrudes to form an axial limiting protrusion, and the side wall of the first circular hole forms a radial bearing part towards the circular protrusion; the axial outer cylindrical surface of the two axial limiting protrusions is in precise gap cooperation with the inner side surface of the flip ear, when the rotating shaft works and is limited, the circumferential side surfaces of the two axial limiting protrusions are respectively extruded and stressed with the circumferential side surfaces of the two radial bearing parts, so that the two pairs of stress surfaces satisfy a pair of force couple relationship, so the uncontrollable displacement during the limiting of the rotating shaft is solved, and the limiting torque is enhanced.

[0004] At present, the damping rotating shaft generates friction force by mutual extrusion between gaskets, and the friction strength is determined by the number of installed gaskets and the tightness of nut tightening, and different damping effects can be achieved according to different friction strengths, but the existing damping rotating shaft adjusts the tightness of nut to control the size of friction force, and the nut is easy to loosen after long-term use, which affects the damping effect, and it is difficult to control the force by adjusting the friction force through the nut, resulting in inconvenient damping force adjustment. UTILITY MODEL CONTENTS

[0005] 1. Technical problem to be solved

[0006] In view of the problems existing in the prior art, the utility model aims at providing a damping rotating shaft, which aims at solving the problems that the damping rotating shaft in the prior art adjusts the tightness of nut to control the size of friction force, the nut is easy to loosen after long-term use, which affects the damping effect, and it is difficult to control the force by adjusting the friction force through the nut, resulting in inconvenient damping force adjustment.

[0007] 2. Technical scheme

[0008] In order to solve the above problems, the utility model adopts the following technical scheme:

[0009] A damping rotating shaft, including rotating shaft body, the top end of the rotating shaft body is fixedly connected with the mounting part, the bottom end of the rotating shaft body is provided with spring slot, the top wall of the spring slot is fixedly connected with the clamping part, the circumferential surface of the clamping part is provided with a group of clamping spring slots, and the group of clamping spring slots are located on the lower side of the rotating shaft body.

[0010] As a preferred scheme of the utility model, the mounting part is provided with a mounting long hole and a mounting round hole, and the mounting long hole and the mounting round hole penetrate through the symmetrical two sides of the mounting part.

[0011] As a preferred scheme of the utility model, the rotating shaft body, the spring slot, the clamping part and the group of clamping spring slots are coaxially arranged.

[0012] As a preferred scheme of the utility model, the bottom end of the clamping part penetrates to the lower side of the rotating shaft body, and the bottom end of the clamping part is tapered.

[0013] As a preferred scheme of the utility model, the number of the group of clamping spring slots is more than one.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] (1) in the scheme, the surface of the clamping part is provided with a spring, one end of the spring is located in the spring slot, a clamping spring is installed in the group of clamping spring slots, the connecting piece is rotatably connected to the circumferential surface of the clamping part, is located between the spring in the spring slot and the clamping spring in the clamping spring slot, the damping rotating shaft utilizes the clamping spring slot to install the clamping spring to limit the rotating position of the connecting piece on the clamping part, the compression spring placed in the spring slot replaces the butterfly gasket to provide damping force, the compression spring elastic force is constant, the clamping spring locking is stable and not easy to loosen, and the damping effect can be effectively guaranteed.

[0017] (2) in the scheme, the clamping spring installed in the group of clamping spring slots limits and fixes the bottom of the connecting piece, and the clamping spring fixed connecting piece is more stable than the nut locking fixed connecting piece and is not easy to loosen, and the clamping spring can be installed in different positions in the group of clamping spring slots, so that the size of the rotating shaft damping force can be controlled and adjusted conveniently. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is the front view of the utility model;

[0019] Fig. 2 It is the perspective view of the utility model;

[0020] Fig. 3 It is the sectional view of the utility model.

[0021] Explanation of reference numerals in the drawing:

[0022] 1, pivot body; 2, mounting portion; 21, mounting long hole; 22, mounting round hole; 3, spring groove; 4, clamping portion; 5, circlip groove. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be broadly understood, for example, "connected" can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] Embodiment:

[0027] Please refer to Figs. 1-3 A damping pivot, comprising a pivot body 1, the top end of the pivot body 1 is fixedly connected with a mounting portion 2, the bottom end of the pivot body 1 is provided with a spring groove 3, the top wall of the spring groove 3 is fixedly connected with a clamping portion 4, a group of circlip grooves 5 are arranged on the circumferential surface of the clamping portion 4, and the group of circlip grooves 5 are located on the lower side of the pivot body 1.

[0028] In this embodiment, the rotating shaft body 1 is fixedly installed at the required use position through the mounting portion 2, the spring is sleeved on the circumferential surface of the clamping portion 4, one end of the spring is arranged in the spring groove 3, the connecting piece is inserted into the upper side of the group of clamping spring grooves 5 from the bottom of the clamping portion 4, the connecting piece is rotatably connected to the circumferential surface of the clamping portion 4 and the spring in the spring groove 3, the group of clamping spring grooves 5 is arranged with the clamping spring, the clamping spring is arranged at the lower side of the connecting piece, and the connecting piece is limited to enable the connecting piece to stably rotate on the circumferential surface of the clamping portion 4.

[0029] Specifically, the mounting portion 2 is provided with a mounting long hole 21 and a mounting circular hole 22, and the mounting long hole 21 and the mounting circular hole 22 penetrate through the symmetrical two sides of the mounting portion 2.

[0030] In this embodiment, the mounting long hole 21 and the mounting circular hole 22 are used in cooperation with bolts to achieve the mounting and fixing of the mounting portion 2. The mounting long hole 21 can compensate for the size deviation between parts to a certain extent, so that the mounting portion 2 can be smoothly installed at the required use position within the manufacturing tolerance range. The mounting circular hole 22 cooperates with the bolt to directly fix the mounting portion 2 at the required position, thereby ensuring the accuracy of the installation of the mounting portion 2.

[0031] Specifically, the rotating shaft body 1, the spring groove 3, the clamping portion 4 and the group of clamping spring grooves 5 are coaxially arranged.

[0032] In this embodiment, the rotating shaft body 1, the spring groove 3, the clamping portion 4 and the group of clamping spring grooves 5 are coaxially arranged, which facilitates the rotation of the rotating shaft.

[0033] Specifically, the bottom end of the clamping portion 4 penetrates to the lower side of the rotating shaft body 1, and the bottom end of the clamping portion 4 is tapered.

[0034] In this embodiment, the taper angle of the bottom end of the clamping portion 4 has a positioning effect, which facilitates the corresponding insertion of the connecting piece and the clamping portion 4.

[0035] Specifically, the number of the group of clamping spring grooves 5 is more than one.

[0036] In this embodiment, the group of clamping spring grooves 5 can enable the clamping spring to be installed at different heights, thereby facilitating the adjustment of the damping force of the rotating shaft.

[0037] Working principle: The rotating shaft body 1 is fixedly installed through the mounting portion 2, the spring is sleeved on the surface of the clamping portion 4 and located in the spring groove 3, the connecting piece is rotatably connected to the clamping portion 4, the bottom is limited by arranging the clamping spring in the group of clamping spring grooves 5, the elastic force of the spring acts on the connecting piece, thereby achieving the purpose of damping rotation. When it is necessary to adjust the damping force, the installation position of the clamping spring in the group of clamping spring grooves 5 is changed, so that the clamping spring is installed at different heights, thereby achieving the purpose of adjusting the damping force between the connecting piece and the spring.

[0038] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and improvement concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A damping shaft, comprising a shaft body (1), characterized in that: The top end of the rotating shaft body (1) is fixedly connected to the mounting part (2), and the bottom end of the rotating shaft body (1) is provided with a spring groove (3). The top wall of the spring groove (3) is fixedly connected to the clamping part (4). A set of snap ring grooves (5) are provided on the circumferential surface of the clamping part (4), and the set of snap ring grooves (5) are located on the lower side of the rotating shaft body (1).

2. The damping shaft according to claim 1, characterized in that: The mounting part (2) is provided with a mounting elongated hole (21) and a mounting round hole (22), and the mounting elongated hole (21) and the mounting round hole (22) both penetrate the symmetrical sides of the mounting part (2).

3. A damping shaft according to claim 2, characterized in that: The rotating shaft body (1), spring groove (3), clamping part (4) and a set of snap ring grooves (5) are all coaxially arranged.

4. A damping shaft according to claim 3, characterized in that: The bottom end of the clamping part (4) extends to the lower side of the rotating shaft body (1), and the bottom end of the clamping part (4) is tapered.

5. A damping shaft according to claim 4, characterized in that: The number of the snap ring slots (5) in a set is set to one or more.

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