A pendulum axial locking structure for a pendulum impact testing machine

Abstract

This utility model relates to the technical field of pendulum impact testing machines, and provides an axial locking structure for the pendulum of a pendulum impact testing machine. It includes a support frame, a drive mechanism fixedly connected to the outside of the support frame, a rotating shaft mounted on the output end of the drive mechanism, the rotating shaft being rotatably connected inside the support frame, a swing rod sleeved on the rotating shaft, a pendulum body mounted on one end of the swing rod, and two limiting devices mounted on the support frame, each containing an adjusting device. In this utility model, two collars are simultaneously positioned at both ends of the swing rod, thereby forming a stable clamping effect in the axial direction, preventing the swing rod from shifting and effectively ensuring the stability of the pendulum during the impact test. The entire process, through the cooperation of the collars, locking plate, and locking rod, achieves axial limiting of the swing rod, ensuring that the pendulum can be held in a predetermined position for impact.

Description

Technical Field

[0001] This utility model belongs to the technical field of pendulum impact testing machine, and particularly relates to an axial locking structure for the pendulum of a pendulum impact testing machine. Background Technology

[0002] In existing pendulum impact testing machines, the pendulum is usually connected to the support frame via a rotating shaft during use. To ensure the accuracy of the impact test, it is necessary to limit the pendulum's movement in the axial direction. However, most existing locking methods rely on a single nut or retaining ring for limiting the position. This method is prone to loosening after prolonged use, resulting in poor fixation of the pendulum on the rotating shaft and affecting the stability of the impact test data. At the same time, some locking structures lack flexible adjustment mechanisms, which cannot quickly adjust the locking position and gap according to different test conditions, reducing the adaptability and service life of the equipment. Utility Model Content

[0003] This invention provides an axial locking structure for the pendulum impact testing machine, which aims to solve the following problem.

[0004] This utility model is implemented as follows: an axial locking structure for a pendulum impact testing machine includes: a support frame, a drive mechanism fixedly connected to the outside of the support frame, a rotating shaft installed at the output end of the drive mechanism, the rotating shaft being rotatably connected inside the support frame, a swing rod sleeved on the rotating shaft, a pendulum body installed at one end of the swing rod, two limiting devices installed on the support frame, and an adjustment device installed inside the limiting devices; The limiting device includes a connecting plate, a collar is fixedly connected to the bottom of the connecting plate, the collar has an opening, locking plates are symmetrically installed under the collar, the same locking rod is locked in the two locking plates, a threaded rod is installed in the connecting plate, a connecting block is sleeved on the threaded rod, and the connecting block is fixedly connected to the upper surface of the support frame.

[0005] Preferably, the inner diameter of the collar is larger than the diameter of the cross-section of the rotating shaft, and there is no contact between the collar and the rotating shaft.

[0006] Preferably, the collar is configured as an elastic plate that facilitates locking.

[0007] Preferably, the adjusting device includes a bearing, which is connected through the connecting plate, and the threaded rod is fixedly connected inside the bearing.

[0008] Preferably, one end of the threaded rod is fixedly connected to a handle for easy adjustment.

[0009] Preferably, two sliding rods are fixedly connected to the outside of the connecting plate, and a vertical plate is provided on the outer sleeve of the sliding rod. The vertical plate is fixedly connected to the upper surface of the support frame, and a limit plate is fixedly connected to one end of the sliding rod.

[0010] Preferably, the vertical plate has a through hole, and the slide rod is slidably connected to the through hole.

[0011] Compared with related technologies, the pendulum axial locking structure of the pendulum impact testing machine provided by this utility model has the following beneficial effects: 1. In this utility model, after the collar is sleeved on the outside of the rotating shaft, the locking rod is then fixed inside the two locking plates, and finally the connecting block is fixed to the upper surface of the support frame with bolts, so that the two collars are simultaneously at both ends of the swing rod, thereby forming a stable clamping effect in the axial direction, preventing the swing rod from moving, and effectively ensuring the stability of the pendulum during the impact test. The entire process, through the cooperation of the collar, locking plate and locking rod, achieves axial limitation of the swing rod, ensuring that the pendulum can be kept in the predetermined position for impact.

[0012] 2. In this utility model, by rotating the handle, the threaded rod is driven to rotate within the connecting block. Simultaneously, the threaded rod rotates smoothly within the bearing, allowing the connecting plate to move synchronously. This, in turn, causes the sliding rod to slide within the vertical plate. This operation process can drive the corresponding adjustment of the collar position, thereby achieving flexible limiting of the swing rod. By adjusting the gap between the collar and the swing rod, the locking effect can be finely adjusted according to different usage requirements, which not only improves the adaptability of the device but also ensures the reliability and stability of the pendulum under different working conditions. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the support frame of this utility model; Figure 3 This is a three-dimensional structural diagram of the limiting device of this utility model; Figure 4 This utility model Figure 3 An enlarged structural diagram of part A in the middle.

[0014] Reference numerals: 1. Support frame; 2. Drive mechanism; 3. Rotating shaft; 4. Swing rod; 5. Pendulum body; 6. Limiting device; 601. Connecting plate; 602. Collar; 603. Locking plate; 604. Locking rod; 605. Threaded rod; 606. Connecting block; 7. Adjusting device; 701. Bearing; 702. Handle; 703. Slide rod; 704. Vertical plate; 705. Limiting plate. Detailed Implementation

[0015] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0016] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0017] This utility model embodiment provides an axial locking structure for the pendulum impact testing machine, such as... Figure 1-4 As shown, it includes: a support frame 1, a drive mechanism 2 fixedly connected to the outside of the support frame 1, a rotating shaft 3 installed at the output end of the drive mechanism 2, the rotating shaft 3 being rotatably connected inside the support frame 1, a swing rod 4 being sleeved on the rotating shaft 3, a pendulum body 5 being installed at one end of the swing rod 4, two limiting devices 6 being installed on the support frame 1, and an adjustment device 7 being installed inside the limiting device 6; The limiting device 6 includes a connecting plate 601, a collar 602 fixedly connected to the lower part of the connecting plate 601, an opening provided in the collar 602, and locking plates 603 symmetrically installed below the collar 602. The same locking rod 604 is locked in the two locking plates 603. A threaded rod 605 is installed in the connecting plate 601, and a connecting block 606 is sleeved on the threaded rod 605. The connecting block 606 is fixedly connected to the upper surface of the support frame 1.

[0018] In this embodiment, the collar 602 is located outside the rotating shaft 3, and the locking plate 603 is symmetrically distributed below the collar 602. When the two work together, they can form a stable clamping effect on the collar 602, ensuring that the collar 602 will not shake due to vibration, thereby further ensuring the locking stability of the swing rod 4 in the axial direction.

[0019] In a further preferred embodiment of the present invention, the inner diameter of the collar 602 is larger than the diameter of the cross-section of the rotating shaft 3, and there is no contact between the collar 602 and the rotating shaft 3. The collar 602 is configured as an elastic plate that is easy to lock.

[0020] In a further preferred embodiment of this utility model, the adjusting device 7 includes a bearing 701, which is connected through the connecting plate 601. A threaded rod 605 is fixedly connected to the bearing 701. One end of the threaded rod 605 is fixedly connected to a handle 702 for easy adjustment. Two sliding rods 703 are fixedly connected to the outside of the connecting plate 601. A vertical plate 704 is sleeved on the sliding rods 703. The vertical plate 704 is fixedly connected to the upper surface of the support frame 1. One end of the sliding rod 703 is fixedly connected to a limiting plate 705. A through hole is opened in the vertical plate 704, and the sliding rod 703 and the through hole form a sliding connection.

[0021] In this embodiment, the slide rod 703 passes through the through hole of the vertical plate 704 and forms a sliding connection with the through hole. This fit can limit the lateral sway of the slide rod 703 while ensuring its smooth movement in the vertical direction, thereby making the adjustment action smoother and more reliable. One end of the slide rod 703 is fixedly connected to the limiting plate 705. The limiting plate 705 can provide support and restriction at the extreme position of the slide rod 703 movement, preventing the slide rod 703 from exceeding the predetermined stroke, thereby effectively protecting the internal connecting plate 601 and collar 602 from excessive displacement.

[0022] In summary, by fitting the collar 602 around the rotating shaft 3, then fixing the locking rod 604 within the two locking plates 603, and finally fixing the connecting block 606 to the upper surface of the support frame 1 with bolts, the two collars 602 can be simultaneously positioned at both ends of the swing rod 4, thus forming a stable clamping effect in the axial direction. This prevents the swing rod 4 from shifting and effectively ensures the stability of the pendulum during the impact test. The entire process, through the cooperation of the collar 602, locking plates 603, and locking rod 604, achieves stable clamping of the swing rod. The axial limiting of rod 4 is achieved by rotating handle 702, which drives threaded rod 605 to rotate within connecting block 606. Simultaneously, threaded rod 605 rotates smoothly within bearing 701, allowing connecting plate 601 to move synchronously. This, in turn, drives slide rod 703 to slide within vertical plate 704. This process allows for corresponding adjustments to the position of collar 602, thus achieving flexible limiting of swing rod 4. By adjusting the gap between collar 602 and swing rod 4, the locking effect can be finely adjusted according to different usage requirements.

[0023] It is worth noting that the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0024] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative; the division of units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; the indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0025] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. An axial locking structure for a pendulum impact testing machine, characterized in that, include: A support frame (1) is fixedly connected to a drive mechanism (2). A rotating shaft (3) is installed at the output end of the drive mechanism (2). The rotating shaft (3) is rotatably connected inside the support frame (1). A swing rod (4) is sleeved on the rotating shaft (3). A pendulum body (5) is installed at one end of the swing rod (4). Two limiting devices (6) are installed on the support frame (1). An adjustment device (7) is installed inside the limiting device (6). The limiting device (6) includes a connecting plate (601), a collar (602) is fixedly connected to the connecting plate (601), the collar (602) has an opening, and locking plates (603) are symmetrically installed under the collar (602). The same locking rod (604) is locked in the two locking plates (603). A threaded rod (605) is installed in the connecting plate (601), and a connecting block (606) is sleeved on the threaded rod (605). The connecting block (606) is fixedly connected to the upper surface of the support frame (1).

2. The pendulum axial locking structure of a pendulum impact testing machine as described in claim 1, characterized in that, The inner diameter of the collar (602) is larger than the diameter of the cross section of the rotating shaft (3), and there is no contact between the collar (602) and the rotating shaft (3).

3. The pendulum axial locking structure of a pendulum impact testing machine as described in claim 1, characterized in that, The collar (602) is configured as an elastic plate for easy locking.

4. The pendulum axial locking structure of a pendulum impact testing machine as described in claim 1, characterized in that, The adjusting device (7) includes a bearing (701), which is connected through the connecting plate (601), and the threaded rod (605) is fixedly connected inside the bearing (701).

5. The pendulum axial locking structure of a pendulum impact testing machine as described in claim 1, characterized in that, One end of the threaded rod (605) is fixedly connected to a handle (702) for easy adjustment.

6. The pendulum axial locking structure of a pendulum impact testing machine as described in claim 4, characterized in that, Two slide rods (703) are fixedly connected to the outside of the connecting plate (601). The slide rods (703) are covered with a vertical plate (704). The vertical plate (704) is fixedly connected to the upper surface of the support frame (1). One end of the slide rod (703) is fixedly connected to a limiting plate (705).

7. The pendulum axial locking structure of a pendulum impact testing machine as described in claim 6, characterized in that, The vertical plate (704) has a through hole, and the slide rod (703) is slidably connected to the through hole.

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