Friction pair equivalent experiment test piece clamping equipment

Abstract

The utility model discloses friction pair equivalent experiment test piece clamping equipment, which relates to the technical field of friction pair experiments, and comprises two bottom plates, limiting structures mounted on the front surfaces of the two bottom plates, and a plurality of contact structures mounted on the front surfaces of the two bottom plates and movably inserted into the limiting structures in a penetrating manner, two groups of fixing structures are mounted between the two bottom plates; the limiting structure comprises two limiting side plates and a limiting pore plate; the two limiting side plates are installed on the inner side of the bottom plate, the limiting hole plate is installed on the front faces of the two limiting side plates, and a plurality of limiting holes are formed in the limiting hole plate; the surface of an experimental test piece in an irregular shape is clamped in a multi-point contact manner, so that the surface contact between the friction pair test piece clamping device and the experimental test piece is realized, the clamping stability is greatly improved, and the friction pair experiment is stably carried out.

Description

Technical Field

[0001] This utility model relates to the field of friction pair experimental technology, and in particular to a friction pair equivalent experimental specimen clamping device. Background Technology

[0002] Experimentation refers to one of the basic methods of scientific research. Based on the purpose of scientific research, it involves minimizing external influences, highlighting key factors, and utilizing specialized instruments and equipment to artificially alter, control, or simulate the research object, causing certain phenomena to occur or be reproduced, thereby gaining an understanding of natural phenomena, natural properties, and natural laws. A friction pair is a system composed of two objects that are in direct contact and generate relative frictional motion; it can be divided into sliding friction pairs and rolling friction pairs.

[0003] In mechanical structures, there are many kinematic pairs, among which rotating pairs and friction pairs are common relative motions. For example, pistons are a common friction pair. Before formal production, such kinematic pairs need to be tested to measure their service life and other related parameters. However, when testing friction pairs, it is very inconvenient to clamp non-ferrous, non-standard parts. They cannot be fixed by magnetic force. Existing clamping equipment may detach when clamping irregularly shaped test specimens, thus causing some trouble for the experiment. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a friction pair equivalent experimental specimen clamping device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A friction pair equivalent test specimen clamping device includes: two base plates, a limiting structure installed on the front of the two base plates, and several contact structures installed on the front of the two base plates, the several contact structures being movably inserted into the interior of the limiting structure, and two sets of fixing structures installed between the two base plates; the limiting structure includes: two limiting side plates and a limiting hole plate; the two limiting side plates are respectively installed on the inner side of the base plates, the limiting hole plate is installed on the front of the two limiting side plates, and the limiting hole plate has several limiting holes.

[0007] The present invention is further configured with several contact structures including: a contact spring, a contact slide rod, and a contact seat; one end of the contact spring is mounted on the front of the base plate, the contact slide rod is mounted on the other end of the contact spring, and the contact slide rod is movably inserted into the limiting hole opened in the limiting hole plate, and the contact seat is mounted on the tail end of the contact slide rod.

[0008] The present invention is further configured with two sets of fixing structures, including: two fixing bases, a fixing slide rod, and a fixing screw; the two fixing bases are respectively installed on the side walls of two base plates, one end of the fixing slide rod is fixed to the front of the fixing base, and the fixing slide rod is movably inserted into the other fixing base, the fixing screw is fixedly installed inside one fixing base by a bearing, and the fixing screw is movably installed inside the other fixing base by a thread.

[0009] The present invention is further configured such that a rubber spherical surface is installed at the tail end of the contact seat.

[0010] The present invention is further configured such that a pull seat is movably mounted on the outside of the fixed slide rod and the fixed screw rod.

[0011] The present invention is further configured such that several of the contact structures are arranged in two rows and installed on the front of the base plate.

[0012] The beneficial effects of this utility model are as follows: This utility model clamps the surface of irregularly shaped experimental specimens through multi-point contact, realizing surface contact between the utility model and the experimental specimens, which greatly improves the stability of the clamping and thus allows the friction pair experiment to proceed stably. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a friction pair equivalent experimental specimen clamping device proposed in this utility model;

[0014] Figure 2 This is a partial structural diagram of a friction pair equivalent experimental specimen clamping device proposed in this utility model;

[0015] Figure 3 This is a schematic diagram of the second partial structure of a friction pair equivalent experimental specimen clamping device proposed in this utility model.

[0016] In the diagram: 1. Base plate; 2. Limiting side plate; 3. Limiting hole plate; 4. Contact spring; 5. Contact slide rod; 6. Contact seat; 7. Fixed base; 8. Fixed slide rod; 9. Fixed screw; 10. Rubber ball; 11. Pulling seat. Detailed Implementation

[0017] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0018] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0019] In the description of this patent, it should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent.

[0020] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0021] Reference Figure 1-3 A friction pair equivalent test specimen clamping device includes: two base plates 1, a limiting structure installed on the front of the two base plates 1, and several contact structures installed on the front of the two base plates 1, the several contact structures being movably inserted into the interior of the limiting structure, and two sets of fixing structures installed between the two base plates 1; the limiting structure includes: two limiting side plates 2 and a limiting hole plate 3; the two limiting side plates 2 are respectively installed on the inner side of the base plates 1, the limiting hole plate 3 is installed on the front of the two limiting side plates 2, the limiting hole plate 3 has several limiting holes, and the several contact structures are arranged in two rows on the front of the base plates 1.

[0022] Specifically, the contact structure includes: a contact spring 4, a contact slide rod 5, and a contact seat 6; one end of the contact spring 4 is installed on the front of the base plate 1, the contact slide rod 5 is installed on the other end of the contact spring 4, and the contact slide rod 5 is movably inserted into the limiting hole opened in the limiting hole plate 3, the contact seat 6 is installed on the tail end of the contact slide rod 5, and a rubber ball surface 10 is installed on the tail end of the contact seat 6.

[0023] Specifically, the two sets of fixing structures include: two fixing bases 7, a fixing slide rod 8, and a fixing screw 9; the two fixing bases 7 are respectively installed on the side walls of the two base plates 1, one end of the fixing slide rod 8 is fixed to the front of the fixing base 7, and the fixing slide rod 8 is movably inserted into the other fixing base 7, the fixing screw 9 is fixedly installed inside the fixing base 7 by bearings, and the fixing screw 9 is movably installed inside the other fixing base 7 by threads, and a pull seat 11 is movably installed on the outside of the fixing slide rod 8 and the fixing screw 9.

[0024] Working principle: When using this utility model, the operator first places the test specimen between two base plates 1. Then, the operator twists the two fixing screws 9 respectively. Under the action of the screws, the distance between the two base plates 1 gradually decreases, and the two contact slides 5 slide in the fixed base 7 respectively, thereby ensuring the parallel position relationship of the two base plates 1. When the rubber ball surface 10 contacts the outer surface of the test specimen, the operator continues to twist the fixing screws 9. At this time, the rubber ball surface 10 drives the contact slides 5 and the contact seat 6 to slide inside the limiting hole plate 3, and the contact spring 4 is compressed. Several rubber balls 10 can simultaneously contact the outer surface of the test specimen. Through the simultaneous contact of several rubber balls 10 with the outer surface of the test specimen, the surface contact between the rubber balls 10 and the test specimen is achieved. Until the operator fixes the test specimen with the base plates 1 by fixing the screws 9, the clamping of this utility model is completed. Then, the operator connects the pull seat 11 and the friction pair drive device to perform friction pair tests on the test specimen.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A specimen clamping device for an equivalent friction pair experiment, comprising: Two base plates (1), characterized in that a limiting structure is installed on the front of the two base plates (1), a plurality of contact structures are installed on the front of the two base plates (1), the plurality of contact structures are movably inserted into the interior of the limiting structure, and two sets of fixing structures are installed between the two base plates (1). The limiting structure includes: two limiting side plates (2) and a limiting hole plate (3); The two limiting side plates (2) are respectively installed on the inner side of the base plate (1), and the limiting hole plate (3) is installed on the front of the two limiting side plates (2). The limiting hole plate (3) has a plurality of limiting holes.

2. The friction pair equivalent experimental specimen clamping device according to claim 1, characterized in that, Several of the aforementioned contact structures include: a contact spring (4), a contact slide (5), and a contact seat (6); One end of the contact spring (4) is installed on the front of the base plate (1), the contact slide rod (5) is installed on the other end of the contact spring (4), and the contact slide rod (5) is movably inserted into the limiting hole opened in the limiting hole plate (3), and the contact seat (6) is installed on the tail end of the contact slide rod (5).

3. The friction pair equivalent experimental specimen clamping device according to claim 1, characterized in that, The two sets of fixing structures include: two fixing bases (7), a fixing slide rod (8), and a fixing screw (9); The two fixed bases (7) are respectively installed on the side walls of the two base plates (1). One end of the fixed slide rod (8) is fixed to the front of the fixed base (7), and the fixed slide rod (8) is movably inserted into the other fixed base (7). The fixed screw (9) is fixedly installed inside one fixed base (7) by bearing, and the fixed screw (9) is movably installed inside the other fixed base (7) by thread.

4. The friction pair equivalent test specimen clamping device according to claim 2, characterized in that, The contact seat (6) is fitted with a rubber spherical surface (10) at its tail end.

5. The friction pair equivalent test specimen clamping device according to claim 3, characterized in that, The fixed slide rod (8) and the fixed screw rod (9) are externally mounted with a pull seat (11).

6. The friction pair equivalent test specimen clamping device according to claim 1, characterized in that, Several of the contact structures are arranged in two rows on the front of the base plate (1).

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