An engineering mechanics fatigue-resistant experimental device

Abstract

The utility model discloses an engineering mechanics's fatigue resistant experimental device, including experimental device and collection device, collection device is used for collecting the metal scrap and dust produced in the experiment process, is placed on the top surface of experimental device, is assembled and is made into by first half collection device and second half collection device, after assembling, surrounds support column and a pair of support column, and there is concave spherical surface on its upper end, and the lowest place of concave spherical surface is equipped with the collecting port, and there is the cavity of containing metal scrap and dust in collection device, and the collecting port is through with the cavity, makes experimental device keep clean and neat, avoids the adverse effect that metal scrap and dust produce to the normal operation of equipment, sets up the inclined plane slide in the cavity, utilizes the natural gravity, and saves the mechanical and artificial collection and gathers metal scrap and dust.

Description

Technical Field

[0001] This utility model belongs to the field of experimental device technology, specifically relating to a fatigue resistance experimental device for engineering mechanics. Background Technology

[0002] In the field of engineering mechanics, fatigue resistance testing equipment is a specialized device used to test the ability of materials, components, or structures to resist fatigue failure under alternating loads. Its core purpose is to study and evaluate the fatigue performance of the object, providing crucial data for engineering design, material selection, and safe life prediction.

[0003] Patent document CN222825410U discloses a fatigue resistance testing device for engineering mechanics. This device includes a shell assembly with a hollow test cavity; a test assembly for clamping the test piece and performing tensile, torsional, or bending tests, installed within the test cavity; and an observation assembly for rotating around the test piece to record the test conditions from all sides. In this invention, when performing a tensile test, the bottom of the test piece is first clamped onto a first rotating jaw, then a second rotating jaw descends and clamps the top of the test piece, and then moves upwards to perform the tensile test. When performing a torsional test, it is essentially the same as the tensile test, except that the second rotating jaw rotates while moving upwards to perform the torsional test. When performing a bending test, the second rotating jaw moves upwards to a suitable height, then a push rod is pushed forward to use the top block on the push rod to push the test piece, causing the tensile test piece to bend, thus performing the bending test.

[0004] However, the fatigue resistance test device for engineering mechanics mentioned in the above-mentioned published literature, as well as the commonly used fatigue resistance test devices for engineering mechanics, do not take into account the issue of cleaning the work platform. Since the work surface is a horizontal surface, metal shavings, dust, and debris generated during the experiment will accumulate on the work surface, making it impossible to keep the work surface clean and tidy, which can easily have an adverse effect on the normal operation of the equipment.

[0005] Therefore, it is necessary to develop a fatigue resistance testing device for engineering mechanics that can keep the operating surface clean and tidy, thereby improving the safety of the testing device. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: A fatigue resistance test device for engineering mechanics includes an experimental device and a collection device. The top surface of the experimental device is fixedly equipped with a support column and a pair of support columns, and the front side is equipped with a data display screen, operation buttons and knobs.

[0007] The collection device is used to collect metal debris and dust generated during the experiment. It is placed on the top surface and is assembled from the first half of the collection device and the second half of the collection device. After assembly, it surrounds the support column and a pair of support columns. The upper end of the device has a concave spherical surface, and the lowest point of the concave spherical surface is provided with a collection port. The collection device has a cavity to accommodate metal debris and dust, and the collection port is connected to the cavity.

[0008] Furthermore, the first half of the collection device has an outlet for cleaning, and a cleaning door is provided on the outlet. The upper edge of the cleaning door is hinged to the upper edge of the outlet, and a rotating latch is provided on the lower side of the outlet. During assembly, the outlet is far away from the front side of the experimental device.

[0009] The outlet is located away from the front side of the experimental device to prevent metal shavings, dust, and debris from falling onto the front side during cleaning and affecting the cleanliness of the work surface.

[0010] Furthermore, both the first and second half-collecting devices are equipped with inclined sliding plates. After assembly, the inclined sliding plates on the first and second half-collecting devices form a straight plane. The inclined sliding plates are inclined towards the outlet, and the edge of their lower end is flush with the lower edge of the outlet. The inclined sliding plates are provided with three holes for engaging the support column and a pair of bracket columns.

[0011] The inclined slide design utilizes natural gravity to collect and gather metal debris and dust, eliminating the need for mechanical and manual collection.

[0012] Furthermore, two adjacent sides of the outlet side are set as assembly surfaces, and fasteners are provided on the two assembly surfaces respectively, with the fasteners spanning the assembly seam.

[0013] Compared with the prior art, the present invention has the following beneficial effects: Because a collection device is installed, metal debris and dust generated during the experiment are collected, keeping the experimental setup clean and tidy, and preventing metal debris and dust from adversely affecting the normal operation of the equipment. Because of the inclined slide plate, natural gravity is used, eliminating the need for mechanical and manual collection of metal debris and dust. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of an existing fatigue resistance testing device in engineering mechanics. Figure 2 This is a schematic diagram of the fatigue resistance test device for engineering mechanics of this utility model. Figure 3 This is a schematic diagram of the collection device structure of this utility model; Figure 4 This is a schematic diagram of the structure of the collection device of this utility model when the cleaning door is open; Figure 5 for Figure 2 Exploded view; Figure 6 This is a top view of the collection device of this utility model.

[0015] In the diagram: 100 is the experimental apparatus; 101 is the apparatus body; 102 is the top surface; 111 is the support column; 112 is the bracket column; 113a is the first clamping component; 113b is the second clamping component; 114 is the sliding beam; 115 is the motor; 116 is the fixed beam; 200 is the collecting device; 201 is the first half-collecting device; 202 is the second half-collecting device; 203 is the concave spherical surface; 204 is the buckle; 205 is the rotating latch; 206 is the cleaning door; 207 is the inclined sliding plate; 208 is the collection port. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] Please see Figure 1This is a common fatigue resistance testing device in engineering mechanics. It is a test device without a collection device, comprising a main body 101 containing control equipment. The front side of the main body 101 has multiple operating buttons and knobs for operation and adjustment, and a data display screen for displaying operating data. A support column 111 is fixedly connected to the top surface 102 of the device, and two support columns 112 are symmetrically fixedly arranged relative to the support column 111. A first clamping member 113a is provided at the upper end of the support column 111, and the first clamping member 113a is detachably fixedly connected to the support column 111 through screw holes and screws, facilitating clamp replacement as needed. A fixing beam 116 is fixedly connected to the upper end of the support column 112, and a motor 115 is fixedly connected to the lower surface of the fixing beam 116. The motor 115 is electrically connected to the control equipment and is controlled by the control equipment to operate. The output shaft of the motor 115 is fixedly connected to a screw... The motor 115 has a threaded rod connected to two support columns 112, with a sliding beam 114 slidably connected to it. The sliding beam 114 has threaded holes, and the threaded rod connected to the motor 115 is threadedly connected to the threaded holes on the sliding beam 114. A mounting column (not shown in the figure) is fixedly connected to the lower surface of the sliding beam 114. A second clamping member 113b is provided at the lower end of the mounting column. Similarly, the second clamping member 113b is detachably fixed to the mounting column through threaded holes and screws, which facilitates the replacement of the clamp as needed. When the motor 115 rotates forward, the threaded rod drives the sliding beam 114 to slide upward, and the second clamping member 113b slides upward with the sliding beam 114. The second clamping member 113b moves away from the first clamping member 113a, releasing the clamped test piece. When the motor 115 rotates in reverse, the threaded rod drives the sliding beam 114 to slide downward, and the second clamping member 113b slides downward with the sliding beam 114. The second clamping member 113b abuts against the first clamping member 113a, clamping the clamped test piece.

[0018] During the fatigue test, under repeated alternating stress, the surface of the metal specimen will generate a large amount of metal debris and a small amount of dust and debris due to continuous plastic deformation, wear and crack propagation. This debris will inevitably be scattered on the top surface 102, and may even fall onto the control panel buttons and knobs, as well as the data display screen. Example 1:

[0019] To prevent metal shavings, dust, and debris from scattering everywhere, this invention includes a collection device 200 on the main body 101.

[0020] Please see Figures 2-6 A fatigue resistance test device for engineering mechanics includes a test device 100 and a collection device 200. The collection device 200 is placed on the upper surface 102 of the test device 100 and covers the entire upper surface 102. Its cross-sectional shape is adapted to the cross-sectional shape of the upper surface 102. In this embodiment, the cross-sectional shape of the collection device 200 is square.

[0021] The collection device 200 is assembled from a first half-collection device 201 and a second half-collection device 202. One side of the first half-collection device 201 has an outlet for cleaning, and a cleaning door 206 is provided on the outlet. The upper edge of the cleaning door 206 is hinged to the upper edge of the outlet. A rotating latch 205 is provided at the bottom of the outlet. The rotating latch 205 is used to open or close the cleaning door 206. When the rotating latch 205 rotates upwards, it prevents the cleaning door 206 from rotating outwards, thus closing the cleaning door 206. 5. When rotated to the horizontal position, the cleaning door 206 rotates outward under the gravity of the objects inside, thus opening the cleaning door 206; the upper surface of the assembled collection device 200 is a concave spherical surface 203, which has two holes for engaging a pair of support columns 112, and a collection port 208 for accommodating the support columns 111 and collecting metal scraps, dust and debris. The collection port 208 is located at the lowest point of the concave spherical surface 203. The collection device 200 has a cavity for accommodating metal scraps, dust and debris, and the collection port 208 communicates with the cavity.

[0022] Both the first half-collecting device 201 and the second half-collecting device 202 are equipped with inclined slide plates 207. After assembly, the inclined slide plates 207 on the first half-collecting device 201 and the second half-collecting device 202 form a straight plane. In the cavity of the collecting device 200, the inclined slide plates 207 are inclined towards the outlet, and the edge of their lower end is flush with the lower edge of the outlet. The inclined slide plates 207 are provided with three holes for engaging the support column 111 and a pair of bracket columns 112.

[0023] The two adjacent sides of the outlet side are assembly surfaces. Each of the two assembly surfaces is provided with a buckle 204, which spans the assembly seam. During assembly, the first half of the collecting device 201 is away from the front side of the device body 101, and the second half of the collecting device 202 is close to the front side of the device body 101. The three holes on the inclined slide plate 207 respectively engage the support column 111 and a pair of support columns 112. The two holes on the concave spherical surface 203 engage the pair of support columns 112. The collecting port 208 on the concave spherical surface 203 accommodates the support column 111. Then, the buckle 204 is engaged, so that the collecting device 200 is placed on the top surface 102 of the experimental device 100 and is in close contact with the support column 111 and the pair of support columns 112, maintaining a stable state.

[0024] After the collection device 200 is assembled, its cleaning outlet and its cleaning door 206 face away from the experimental device 100 and are equipped with a data display screen, operation buttons and knobs to prevent metal shavings, dust and debris from falling on it during cleaning.

[0025] During use, metal scraps, dust, and debris generated during experiments fall onto the concave spherical surface 203. Under the influence of gravity, they fall into the collection port 208, enter the cavity inside the collection device 200, and then fall onto the inclined slide plate 207. Under the influence of gravity, they slide down the inclined slide plate 207 towards the cleaning outlet. When a certain amount has accumulated, the rotating latch 205 is turned to open the cleaning door 206 for cleaning. This keeps the work surface clean and tidy, improving the safety of the experimental apparatus.

[0026] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A fatigue resistance testing device for engineering mechanics, characterized in that, It includes an experimental setup (100) and a collection device (200). The experimental apparatus (100) has a support column (111) and a pair of support columns (112) fixedly installed on its top surface (102), and a data display screen, operation buttons and knobs are provided on its front side; The collecting device (200) is used to collect metal scraps and dust generated during the experiment. It is placed on the top surface (102) and is assembled from the first half collecting device (201) and the second half collecting device (202). After assembly, it surrounds the support column (111) and a pair of support columns (112). Its upper end has a concave spherical surface (203). The lowest point of the concave spherical surface (203) is provided with a collection port (208). The collecting device (200) has a cavity to accommodate metal scraps and dust. The collection port (208) is connected to the cavity.

2. The fatigue resistance testing apparatus for engineering mechanics according to claim 1, characterized in that, The first half-collection device (201) has an outlet for cleaning, and a cleaning door (206) is provided on the outlet. The upper edge of the cleaning door (206) is hinged to the upper edge of the outlet. A rotating latch (205) is provided on the lower side of the outlet. When assembled, the outlet is far away from the front side of the experimental device (100).

3. The fatigue resistance testing apparatus for engineering mechanics according to claim 2, characterized in that, Both the first half-collecting device (201) and the second half-collecting device (202) are equipped with inclined slide plates (207). After assembly, the inclined slide plates (207) on the first half-collecting device (201) and the inclined slide plates (207) on the second half-collecting device (202) form a straight plane. The inclined slide plates (207) are inclined towards the outlet, and the edge of their lower end is flush with the lower edge of the outlet. The inclined slide plates (207) are provided with three holes for engaging the support column (111) and a pair of bracket columns (112).

4. The fatigue resistance testing apparatus for engineering mechanics according to claim 2, characterized in that, The two adjacent sides of the outlet side are assembly surfaces, and buckles (204) are provided on the two assembly surfaces respectively, with the buckles (204) spanning the assembly seam.

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