Fatigue life testing device for hinge

Abstract

The invention relates to a hinge fatigue life test device, which is provided with two test doors and is driven by a power device and a transmission device, can simultaneously perform fatigue life test on hinges on the left side and the right side, and compared with a traditional single-door test device, the test efficiency is doubled, and the test cost and the time cost are reduced; the clamping device is connected with the power device through the second clutch assembly, when the hinge needs to be replaced, power is provided through the power device, and then the test door is clamped and fixed under the action of the clamping device, so that the test door does not need to be manually lifted, the replacement process of the hinge of the to-be-tested piece is greatly simplified, and the replacement efficiency is improved. The usability of the testing device is improved; only one power source is used for simultaneously driving the testing door turning device and the clamping and fixing device to work, the number of power sources is reduced, the manufacturing cost of the device is reduced, space can be saved, the overall layout of the testing device is more compact, and transportation, installation and maintenance of the device are facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of hinge production equipment, and in particular to a hinge fatigue life testing device. Background Art

[0002] With the continuous development of the economy and the continuous improvement of people's living standards, people's requirements for the quality of doors are also getting higher and higher. The main components of a door are door leaves, door frames and hinges. The hinges are mainly used to connect the door frames and door leaves. During use, the door leaves are often opened and closed. At this time, the life of the hinges directly affects the service life of the door leaves. In order to test the service life of the hinges, there are devices on the market that use cylinder extension to drive the door leaves to open and close, thereby testing the life of the hinges. However, this type of equipment usually has the following problems: 1. Most devices can only test a single hinge, and it is difficult to test multiple hinges simultaneously, resulting in a long test cycle and high cost; 2. When the hinge to be tested needs to be replaced, the traditional device lacks a device for fixing the test door, so workers need to lift the test door to disassemble and install the hinges, which is cumbersome and extremely troublesome. Summary of the Invention

[0003] The present invention aims to solve one of the problems existing in the existing related technologies to at least a certain extent. To this end, the present invention proposes a device that can efficiently and conveniently perform hinge fatigue life testing.

[0004] To achieve the above object, the present invention provides the following technical solutions: A hinge fatigue life testing device includes a test frame and a test door. Two test doors are provided and are installed on the left and right sides of the test frame through the hinge to be tested. The device also includes a power device, a transmission device, a clamping device, a first clutch assembly, and a second clutch assembly. The power device is detachably connected to the transmission device through the first clutch assembly and can drive the two test doors to flip through the transmission device. The power device is detachably connected to the clamping device through the second clutch assembly and can clamp and fix the two test doors through the clamping device.

[0005] In some embodiments, the power device includes a cylinder provided on the test stand, the piston rod of the cylinder is telescopically arranged forward and backward, and a connecting column is provided at the end of the piston rod.

[0006] In some embodiments, the transmission device is provided with two groups spaced apart on the left and right, each of which includes a swing seat provided on the test frame, a V-shaped swing plate swingingly hinged on the swing seat, a first guide column provided at one end of the V-shaped swing plate, and a second guide column provided at the other end, a first transverse guide groove provided on one side of the test door, the first guide column is movably provided in the first transverse guide groove, a second transverse guide groove is provided on the test frame for sliding back and forth, and the second guide column is movably provided in the second transverse guide groove.

[0007] In some embodiments, the first clutch assembly includes a sliding seat that slides back and forth on the test frame, the sliding seat is fixedly connected to the second transverse guide groove, a through hole that passes through the front and back is provided on the sliding seat, a U-shaped limit plate is movably inserted at the upper end of the sliding seat, the connecting column can be movably passed through the through hole, and a concave ring groove is provided on the circumferential outer wall of the connecting column, the U-shaped limit plate can be stuck in the concave ring groove, so that the U-shaped limit plate, the connecting column and the sliding seat are connected.

[0008] In some embodiments, the clamping device is provided with two groups at intervals on the left and right, each of which includes an articulated seat spaced upper and lower on the test frame, an arc-shaped clamping arm is hinged on the articulated seat at intervals in front and back, a clamping portion is provided at the outer end of the arc-shaped clamping arm, a gear is provided on the hinge axis of the arc-shaped clamping arm, a double-sided rack is provided on the articulated seat and slides left and right between the two gears, the double-sided rack can respectively engage with the gears on the front and rear sides, the inner ends of the upper and lower double-sided racks are connected by a vertical plate, a connecting plate is hinged on the vertical plate, and a connecting seat is hingedly connected between the left and right connecting plates.

[0009] In some embodiments, the second clutch assembly includes a bolt threadedly connected to the connecting seat, and a threaded hole is provided at the end of the connecting column. The bolt can be threadedly connected to the threaded hole, thereby fixing the connecting seat and the connecting column.

[0010] In some embodiments, a rubber pad is provided on the clamping portion.

[0011] In some embodiments, a limiting groove is provided on the test door, and the clamping portion is clamped in the limiting groove.

[0012] In some embodiments, a counting sensor for counting the number of times the test door is flipped open is provided on the test stand.

[0013] In some embodiments, a hollow opening is provided on the test door, and a counterweight hook is provided on the hollow opening.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. Two test doors are set up and driven by a power device and transmission device, which can simultaneously perform fatigue life tests on the hinges on the left and right sides. Compared with traditional single-door test equipment, the test efficiency is doubled, reducing testing costs and time costs.

[0015] 2. The clamping device is connected to the power unit via a second clutch assembly. When the hinge needs to be replaced, the power unit provides power, and the clamping device clamps and secures the test door. This eliminates the need for manual lifting of the test door, greatly simplifying the hinge replacement process and improving the test device's usability.

[0016] 3. The detachable connection between the first and second clutch assemblies allows a single power source to simultaneously operate both the test door's flipping and clamping mechanisms, eliminating the cumbersome structure caused by the stacking of multiple power sources in traditional designs. Reducing the number of power sources not only reduces manufacturing costs but also saves space, making the overall layout of the test device more compact and facilitating transportation, installation, and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the power device of the present invention when it is connected to the transmission device through the first clutch assembly.

[0018] Figure 2 For the present invention Figure 1 A magnified schematic diagram of .

[0019] Figure 3 This is one of the schematic top views of the structure when the power device of the present invention is connected to the transmission device via the first clutch assembly.

[0020] Figure 4 This is the second top view structural diagram of the power device of the present invention when it is connected to the transmission device through the first clutch assembly.

[0021] Figure 5 It is a structural schematic diagram of the first clutch assembly of the present invention.

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the power device of the present invention when it is connected through the second clutch assembly and the clamping device.

[0023] Figure 7 For the present invention Figure 6 Enlarged schematic diagram of point B.

[0024] Figure 8 It is a structural schematic diagram of the second clutch assembly of the present invention. DETAILED DESCRIPTION

[0025] The following detailed description provides various embodiments or examples for implementing the present invention. Of course, these are merely examples or embodiments and are not intended to be limiting. Furthermore, repeated reference numerals, such as repeated numbers and / or letters, may be used in different embodiments. Such repetition is for simplicity and clarity in describing the present invention and does not imply a specific relationship between the different embodiments and / or configurations discussed.

[0026] like Figures 1-8 The hinge fatigue life test device shown includes a test frame 1 and a test door 2. There are two test doors 2, which are installed on the left and right sides of the test frame 1 through the hinge 10 to be tested. It also includes a power device, a transmission device, a clamping device, a first clutch assembly and a second clutch assembly. The power device is detachably connected to the transmission device through the first clutch assembly and can drive the two test doors 2 to flip through the transmission device. The power device is detachably connected to the clamping device through the second clutch assembly and can clamp and fix the two test doors 2 through the clamping device.

[0027] When actually building the test device, the test frame 1 serves as the basic support structure and can be welded or assembled with high-strength metal materials. The two test doors 2 are respectively installed on the left and right sides of the test frame 1 through the hinges 10 to be tested, ensuring that the hinges 10 are firmly installed. The power unit, transmission device, clamping device, and the first clutch assembly and the second clutch assembly are respectively installed at the corresponding positions of the test frame 1. When testing is required, the power unit and the transmission device are connected through the first clutch assembly, and the power unit drives the transmission device to drive the test door 2 to flip; when the hinge 10 needs to be replaced, the power unit and the clamping device are connected through the second clutch assembly, and the clamping device clamps the test door 2 and then performs disassembly and replacement operations.

[0028] According to the above structure, two test doors 2 are set and driven by a power device and a transmission device, so that fatigue life tests can be performed on the hinges 10 on the left and right sides at the same time. Compared with the traditional single-door testing device, the testing efficiency is doubled, and the testing cost and time cost are reduced.

[0029] In addition, the clamping device is connected to the power device through the second clutch assembly. When the hinge needs to be replaced, power is provided by the power device, and then the test door 2 is clamped and fixed by the clamping device, thereby eliminating the need to manually lift the test door. This greatly simplifies the replacement process of the hinge of the test piece and improves the usability of the test device.

[0030] It is worth mentioning that the detachable connection design of the first clutch assembly and the second clutch assembly allows only one power source to simultaneously drive the flipping and clamping of the test door 2, avoiding the problem of bloated structure caused by the superposition of multiple power sources in traditional designs; reducing the number of power sources not only reduces the manufacturing cost of the device, but also saves space, making the overall layout of the test device more compact and facilitating the transportation, installation and maintenance of the equipment.

[0031] In the present invention, the power device includes a cylinder 21 arranged on the test frame 1, the piston rod of the cylinder 21 is telescopically arranged forward and backward, and a connecting column 22 is arranged at the end of the piston rod; the cylinder is used as the power source, and the telescopic movement of its piston rod forward and backward is stable and controllable, which can provide continuous and stable power for the flipping and clamping operations of the test door 2.

[0032] See also Figures 1-4 As shown, the transmission device is provided with two groups at intervals on the left and right, each of which includes a swing seat 31 provided on the test frame 1, a V-shaped swing plate 32 is swingingly hinged on the swing seat 31, a first guide column 33 is provided at one end of the V-shaped swing plate 32, and a second guide column 34 is provided at the other end, a first transverse guide groove 35 is provided on one side of the test door 2, the first guide column 33 is movably provided in the first transverse guide groove 35, a second transverse guide groove 36 is provided on the test frame 1 for sliding back and forth, and the second guide column 34 is movably provided in the second transverse guide groove 36.

[0033] According to the above structure, two sets of swing seats 31 are installed at intervals on the left and right sides of the test frame 1 and fixed by bolts or welding. A hinged shaft is used to connect a V-shaped swing plate 32 to each swing seat 31 to ensure the flexible swing of the V-shaped swing plate 32. A first guide post 33 is welded or threaded to one end of the V-shaped swing plate 32, and a second guide post 34 is installed at the other end. A first transverse guide slot 35 is provided on one side of the test door 2, and the first guide post 33 is inserted into the first transverse guide slot 35 to form a sliding fit. A second transverse guide slot 36 is provided on the test frame 1, which can slide back and forth, and the second guide post 34 is movably mounted in the second transverse guide slot 36. When the piston rod of the cylinder 21 is extended or retracted, it drives the connecting column 22 to move, which in turn drives the V-shaped swing plate 32 to swing through the second transverse guide slot 36 and the second guide post 34. The first guide post 33 then cooperates with the first transverse guide slot 35 to convert the swing of the V-shaped swing plate 32 into a flipping motion of the test door 2.

[0034] See also Figure 3-Figure 5As shown, the first clutch assembly includes a sliding seat 41 that slides back and forth on the test frame 1, and the sliding seat 41 is fixedly connected to the second transverse guide groove 36. A through hole 42 that passes through the front and back is provided on the sliding seat 41, and a U-shaped limit plate 43 is movably inserted at the upper end of the sliding seat 41. The connecting column 22 can be movably inserted into the through hole 42, and a concave ring groove 44 is provided on the circumferential outer wall of the connecting column 22. The U-shaped limit plate 43 can be stuck in the concave ring groove 44, so that the U-shaped limit plate 43, the connecting column 22 and the sliding seat 41 are connected.

[0035] Specifically, a slide rail or slide groove is set on the test frame 1 so that the sliding seat 41 can slide back and forth; the sliding seat 41 is fixedly connected to the second transverse guide groove 36 by bolts to ensure that the two move synchronously; a through hole 42 that passes through the front and back is processed on the sliding seat 41 so that the connecting column 22 can pass through the through hole 42; a slot is set at the upper end of the sliding seat 41, and the U-shaped limit plate 43 can be movably inserted into the slot; a concave ring groove 44 is processed on the circumferential outer wall of the connecting column 22. After the connecting column 22 passes through the through hole 42, the U-shaped limit plate 43 is inserted into the slot and snapped into the concave ring groove 44, thereby realizing the connection between the U-shaped limit plate 43, the connecting column 22 and the sliding seat 41, so that the power device is connected to the transmission device, and the cylinder 21 can drive the transmission device to work.

[0036] See also Figure 6-Figure 8 As shown, the clamping device is provided with two groups at intervals on the left and right, each of which includes an articulated seat 51 spaced apart on the upper and lower sides on the test frame 1, an arc-shaped clamping arm 52 is hinged on the articulated seat 51 at intervals on the front and back, a clamping portion 53 is provided on the outer end of the arc-shaped clamping arm 52, a gear 54 is provided on the hinge axis of the arc-shaped clamping arm 52, a double-sided rack 55 is provided on the articulated seat 51 and slides left and right between the two gears 54, the double-sided rack 55 can respectively engage with the gears 54 on the front and rear sides, the inner ends of the upper and lower double-sided racks 55 are connected by a vertical plate 56, a connecting plate 57 is hinged on the vertical plate 56, and a connecting seat 58 is hingedly connected between the left and right connecting plates 57.

[0037] Specifically, hinged seats 51 are installed at intervals on the left and right sides of the test frame 1 and fixed with bolts; arc-shaped clamping arms 52 are hinged at intervals on each hinged seat 51 through a hinge shaft, and a gear 54 is installed on the hinge shaft of the arc-shaped clamping arm 52 to ensure that the gear 54 and the arc-shaped clamping arm 52 rotate synchronously; a guide rail is set on the hinged seat 51 so that the double-sided rack 55 can slide left and right, and the double-sided rack 55 is respectively engaged with the gears 54 on the front and rear sides; the inner ends of the upper and lower double-sided racks 55 are connected through the vertical The vertical plate 56 is welded or bolted, and the connecting plate 57 is hinged to the vertical plate 56 through a hinge shaft. The left and right connecting plates 57 are connected with a connecting seat 58 through a hinge shaft; when the power unit is connected to the connecting seat 58 through the second clutch assembly, the cylinder 21 drives the connecting seat 58 to move, driving the connecting plate 57, the vertical plate 56 and the double-sided rack 55 to slide, and the double-sided rack 55 drives the gear 54 to rotate, thereby causing the arc-shaped clamping arm 52 to rotate around the hinge shaft, and clamping the test door 2 through the clamping part 53.

[0038] The second clutch assembly includes a bolt 61 threadedly connected to the connecting seat 58. A threaded hole 62 is provided at the end of the connecting column 22. The bolt 61 can be threadedly connected to the threaded hole 62, thereby fixing the connecting seat 58 and the connecting column 22.

[0039] Specifically, a threaded hole is processed on the connecting seat 58, and the bolt 61 is threadedly connected to the connecting seat 58; a threaded hole 62 that is compatible with the bolt 61 is processed at the end of the connecting column 22; when it is necessary to clamp the test door 2, first, separate it from the first clutch assembly, pull out the U-shaped limit plate 43 from the slot of the sliding seat 41, and the cylinder 21 connecting column 22 continues to extend, and the connecting column 22 is brought close to the connecting seat 58, and the bolt 61 is tightened to make it threadedly connected to the threaded hole 62, so that the connecting seat 58 and the connecting column 22 are fixed, and the power unit and the clamping device are connected; when the clamping function is not needed, unscrew the bolt 61 to separate the power unit and the clamping device.

[0040] Furthermore, a rubber pad is provided on the clamping portion 53, and the rubber pad is installed on the surface of the clamping portion 53 by gluing or screwing to ensure that the rubber pad is firmly attached to the clamping portion 53. When the test door 2 is clamped, the rubber pad is in close contact with the surface of the test door 2, thereby increasing friction and protecting the surface of the test door 2 from being scratched.

[0041] Furthermore, a limiting groove 81 is provided on the test door 2, and the clamping portion 53 is clamped in the limiting groove 81; the limiting groove 81 is processed at a suitable position on the edge of the test door 2 to ensure that the size of the limiting groove 81 is adapted to the clamping portion 53; when the clamping device is working, the clamping portion 53 is accurately inserted into the limiting groove 81, so that the clamping force is evenly distributed on the test door 2, preventing the test door 2 from being offset or tilted.

[0042] In the present invention, a counting sensor 91 for counting the number of times the test door 2 is flipped open is provided on the test stand 1. A photoelectric sensor or a proximity sensor can be used. The counting sensor 91 is connected to a data acquisition system. Each time the test door 2 is flipped open and passes through the counting sensor 91, the sensor triggers a signal, and the data acquisition system records the number of flips, thereby realizing automatic and accurate counting of the number of times the test door 2 is flipped open.

[0043] In the present invention, a hollow opening 92 is provided on the test door 2, and a counterweight hook 93 is provided on the hollow opening 92; thus, a counterweight block of appropriate weight can be selected and hung on the counterweight hook 93 according to different test requirements, simulating the working conditions of the hinge bearing different loads in actual use, making the test closer to the actual application scenario.

[0044] The basic principles, main features, and advantages of the present invention are shown and described above in conjunction with the accompanying drawings. Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention as claimed. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A hinge fatigue life test device, comprising a test frame (1) and a test door (2), wherein two test doors (2) are provided and are mounted on the left and right sides of the test frame (1) via the hinge (10) to be tested, characterized in that: It also includes a power device, a transmission device, a clamping device, a first clutch assembly, and a second clutch assembly. The power device is detachably connected to the transmission device through the first clutch assembly and can drive the two test doors (2) to flip through the transmission device. The power device is detachably connected to the clamping device through the second clutch assembly and can clamp and fix the two test doors (2) through the clamping device.

2. The hinge fatigue life testing device according to claim 1, characterized in that: The power device comprises a cylinder (21) provided on the test stand (1); a piston rod of the cylinder (21) is arranged to be telescopically arranged forward and backward, and a connecting column (22) is provided at the end of the piston rod.

3. The hinge fatigue life testing device according to claim 2, characterized in that: The transmission device is provided with two groups at intervals on the left and right, each of which includes a swing seat (31) provided on the test frame (1), a V-shaped swing plate (32) swingably hinged on the swing seat (31), a first guide column (33) provided at one end of the V-shaped swing plate (32), and a second guide column (34) provided at the other end, a first transverse guide groove (35) provided on one side of the test door (2), the first guide column (33) being movably provided in the first transverse guide groove (35), a second transverse guide groove (36) being slidable forward and backward on the test frame (1), and the second guide column (34) being movably provided in the second transverse guide groove (36).

4. The hinge fatigue life testing device according to claim 3, characterized in that: The first clutch assembly includes a sliding seat (41) that slides forward and backward on the test frame (1), the sliding seat (41) is fixedly connected to the second transverse guide groove (36), a through hole (42) that passes through the front and back is provided on the sliding seat (41), a U-shaped limiting plate (43) is movably inserted at the upper end of the sliding seat (41), the connecting column (22) can be movably inserted into the through hole (42), and a concave ring groove (44) is provided on the circumferential outer wall of the connecting column (22), and the U-shaped limiting plate (43) can be snapped into the concave ring groove (44), so that the U-shaped limiting plate (43), the connecting column (22) and the sliding seat (41) are connected.

5. The hinge fatigue life testing device according to claim 2, characterized in that: The clamping device is provided with two groups at intervals on the left and right, each of which includes an articulated seat (51) spaced apart on the upper and lower sides on the test frame (1), an arc-shaped clamping arm (52) is hinged on the articulated seat (51) at intervals on the front and back, a clamping portion (53) is provided on the outer end of the arc-shaped clamping arm (52), a gear (54) is provided on the hinge shaft of the arc-shaped clamping arm (52), a double-sided rack (55) is provided on the articulated seat (51) and is located between the two gears (54) and slides left and right, the double-sided rack (55) can be engaged with the gears (54) on the front and rear sides respectively, the inner ends of the upper and lower double-sided racks (55) are connected by a vertical plate (56), a connecting plate (57) is hinged on the vertical plate (56), and a connecting seat (58) is hingedly connected between the left and right connecting plates (57).

6. The hinge fatigue life testing device according to claim 5, characterized in that: The second clutch assembly includes a bolt (61) threadedly connected to the connecting seat (58), and a threaded hole (62) is provided at the end of the connecting column (22). The bolt (61) can be threadedly connected to the threaded hole (62), thereby fixedly connecting the connecting seat (58) and the connecting column (22).

7. The hinge fatigue life testing device according to claim 5, characterized in that: A rubber pad is provided on the clamping portion (53).

8. The hinge fatigue life testing device according to claim 7, characterized in that: A limiting groove (81) is provided on the test door (2), and the clamping portion (53) is clamped in the limiting groove (81).

9. The hinge fatigue life testing device according to claim 1, characterized in that: A counting sensor (91) for counting the number of times the test door (2) is flipped open is provided on the test stand (1).

10. The hinge fatigue life testing device according to claim 1, characterized in that: A hollow opening (92) is provided on the test door (2), and a counterweight hook (93) is provided on the hollow opening (92).

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