Forklift fork frame strength detection device

Abstract

The utility model relates to the technical field of forklift fork frame strength detection, in particular to a forklift fork frame strength detection device which comprises a bottom plate and a fork frame, and the top of the bottom plate is fixedly provided with a door-shaped frame and a mounting seat; two testing mechanisms used for carrying out downward pressing, lateral pushing and torsional strength detection on the fork frame are symmetrically arranged in the door-shaped frame, and control mechanisms used for controlling the door-shaped frame to move longitudinally are arranged at the positions, corresponding to the two testing mechanisms, of the top of the door-shaped frame; by arranging the testing mechanism, the effects of simulating a vertical pressure test during cargo bearing, simulating a lateral force test during cargo roll or vehicle body turning and simulating a torsional load test caused by uneven ground or cargo gravity center shift during cargo insertion can be achieved; the performance of the fork frame under various actual working conditions can be comprehensively evaluated, and it is ensured that the fork frame can work safely and reliably in a complex working environment.

Description

Technical Field

[0001] The utility model relates to the technical field of forklift fork frame strength detection, in particular to a forklift fork frame strength detection device. Background Art

[0002] The fork strength testing device is used to evaluate the load-bearing capacity and structural stability of forklift forks under different working conditions.

[0003] A forklift fork frame strength detection device disclosed in Chinese patent publication number CN220230928U, the forklift fork frame strength detection device, by providing a plug plate, plugging the fork frame onto the plug plate to complete the positioning of the fork frame, and then making the hydraulic press apply pressure to different parts of the fork frame, thereby improving the fork frame detection efficiency and the detection accuracy of the fork frame; however, according to the forklift fork frame strength detection devices provided in the related field and the existing technology, the existing devices can usually only perform a single type of strength detection, such as only detecting the downward pressure strength. However, in actual operation, the fork frame will be subjected to a variety of forces in different directions and types. A single detection function cannot fully evaluate the performance of the fork frame under complex working conditions, which may result in some potential safety hazards not being discovered in time. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art, solve the problems mentioned in the background art, and provide a forklift fork frame strength detection device.

[0005] The purpose of the utility model is achieved through the following technical solutions: A forklift fork frame strength testing device, comprising a base plate and a fork frame, a portal frame and a mounting seat fixedly mounted on the top of the base plate; two testing mechanisms for performing downward pressure, side push and torsional strength testing on the fork frame are symmetrically provided inside the portal frame, and a control mechanism for controlling its longitudinal movement is provided at the positions corresponding to the two testing mechanisms on the top of the portal frame.

[0006] Preferably, the testing mechanism includes a testing piece, a torsion assembly is provided on a side of the testing piece close to the side wall of the portal frame, an engaging groove is provided on a bottom side of the testing piece away from the torsion assembly, and a resistance plate is fixedly installed inside the engaging groove.

[0007] Preferably, the fitting groove includes a horizontal area and an inclined area, and the abutment plate is adapted to the fitting groove.

[0008] Preferably, the torsion assembly includes a torsion roller rotatably connected to the test piece, the outer surface of the torsion roller is provided with a snap-fit ​​groove and a plurality of meshing grooves, the torsion roller is connected to a gear shaft through the meshing groove, and the side wall of the portal frame is fixedly mounted with a rack adapted to the gear shaft.

[0009] Preferably, the test piece is provided with a first rotating hole at a position corresponding to the torsion roller, and the bottom of the first rotating hole is open. The test piece is provided with a second rotating hole at a position corresponding to the gear shaft, and the second rotating hole is connected to the first rotating hole. The second rotating hole is open on the side facing the side wall of the portal frame, and the gear shaft is connected to the second rotating hole through an elastic member shaft.

[0010] Preferably, the engaging groove is adapted to the fork, and an opening of the engaging groove is formed with an inclined surface.

[0011] Preferably, the control mechanism includes a hydraulic cylinder fixedly mounted on the top of the portal frame, the output end of the hydraulic cylinder is fixedly provided with a connecting plate, the output end of the hydraulic cylinder passes through the portal frame, the connecting plate is located on the inner side of the portal frame, and the connecting plate is fixedly mounted on the test piece by bolts.

[0012] Beneficial effects:

[0013] The forklift fork strength testing device, through the provision of a testing mechanism, can simulate vertical pressure testing when carrying cargo, lateral force testing when simulating cargo tilting or vehicle turning, and twisting load testing caused by uneven ground or cargo center of gravity shift when inserting cargo. By testing these different types of strength, the performance of the forklift under various actual working conditions can be comprehensively evaluated to ensure that the forklift can operate safely and reliably in complex operating environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the state when the fork frame is pressed down in the utility model;

[0017] Figure 3 This is a schematic diagram of the state when the fork frame is pushed sideways in the utility model;

[0018] Figure 4 This is a schematic diagram of the state when the fork frame is twisted according to the present invention;

[0019] Figure 5 This is a schematic diagram of the internal structure of the portal frame of the utility model;

[0020] Figure 6 For this utility model Figure 5 A schematic diagram of the structure at center A;

[0021] Figure 7 This is a schematic diagram of the structure of the torsion assembly and the test piece of the utility model;

[0022] Figure 8 This is a schematic diagram of the disassembled structure of the torsion component and the test piece of the utility model.

[0023] In the figure: 1. Base plate; 2. Door frame; 3. Mounting seat; 4. Fork frame; 401. Mounting frame; 402. Fork; 403. Adjustment mechanism; 5. Testing mechanism; 501. Test piece; 5011. First rotating hole; 5012. Second rotating hole; 502. Engaging groove; 503. Contact plate; 6. Control mechanism; 601. Hydraulic cylinder; 602. Connecting plate; 7. Torsion assembly; 701. Torsion roller; 702. Engaging groove; 703. Engaging groove; 704. Gear shaft; 705. Elastic member shaft; 8. Rack. DETAILED DESCRIPTION

[0024] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0025] Additional aspects and advantages of the present invention will be further described below in conjunction with the accompanying drawings, and some will become apparent from the following description or be learned through practice of the present invention.

[0026] like Figures 1 to 8 As shown, a forklift fork frame strength testing device includes a base plate 1, on the top of which a portal frame 2 and a mounting seat 3 are fixedly mounted; two testing mechanisms 5 for performing downward pressure, side push and torsion tests on the fork frame 4 are symmetrically provided inside the portal frame 2, and a control mechanism 6 for controlling its longitudinal movement is provided at the top of the portal frame 2 corresponding to the positions of the two testing mechanisms 5.

[0027] The fork frame 4 includes a mounting frame 401 and two forks 402 . The mounting frame 401 is provided with an adjustment mechanism 403 for adjusting the distance between the two forks 402 .

[0028] like Figures 5 to 8As shown, the test mechanism 5 includes a test piece 501, and a torsion component 7 is provided on the side of the test piece 501 close to the side wall of the portal frame 2, and an engaging groove 502 is provided on the bottom of the test piece 501 away from the torsion component 7. A resistance plate 503 is fixedly installed inside the engaging groove 502, and the engaging groove 502 includes a horizontal area and an inclined area. The resistance plate 503 is adapted to the engaging groove 502, and a rubber layer is provided on the surface of the resistance plate 503 to prevent scratches or abrasions on the surface of the fork frame 4. At the same time, the detachable structure of the resistance plate 503 allows the resistance plate 503 to be replaced separately, thereby reducing the use cost of the equipment.

[0029] like Figures 1 to 4 As shown, the control mechanism 6 includes a hydraulic cylinder 601 fixedly mounted on the top of the portal frame 2, and a connecting plate 602 is fixedly provided at the output end of the hydraulic cylinder 601. The output end of the hydraulic cylinder 601 passes through the portal frame 2, and the connecting plate 602 is located on the inner side of the portal frame 2. The connecting plate 602 is fixedly mounted on the test piece 501 by bolts.

[0030] In summary, when the fork 402 corresponds to the horizontal area of ​​the fitting groove 502, the hydraulic cylinder 601 controls the test piece 501 to move downward, so that the contact plate 503 at the bottom of the test piece 501 presses down on the fork 402, simulating a vertical pressure test when the fork frame 4 carries cargo; when the fork 402 corresponds to the inclined area of ​​the fitting groove 502, the hydraulic cylinder 601 controls the test piece 501 to move downward, so that the contact plate 503 at the bottom of the test piece 501 presses down on the fork 402, simulating a lateral force test when the cargo tilts or the vehicle turns; The distance between the two forks 402 can be flexibly adjusted according to different working environments (in actual working scenarios, the size, shape and storage layout of the goods vary greatly, and different working environments have different requirements for the distance between the forks 402. For example, in narrow shelf aisles, a smaller distance between the forks 402 may be required; while when transporting large and wide goods, a larger distance between the forks 402 is required), thereby meeting diverse needs and enabling detection work to be carried out smoothly under various actual working conditions, greatly improving the versatility and applicability of the detection device.

[0031] like Figures 5 to 8As shown, the torsion assembly 7 includes a torsion roller 701 rotatably connected to the test piece 501, and an engaging groove 702 and a plurality of meshing grooves 703 are provided on the outer surface of the torsion roller 701. The torsion roller 701 is connected to the gear shaft 704 through the meshing groove 703. The side wall of the portal frame 2 is fixedly installed with a rack 8 adapted to the gear shaft 704. The position of the test piece 501 corresponding to the torsion roller 701 is provided with a first rotating hole 5011, and the bottom of the first rotating hole 5011 is open. The position of the test piece 501 corresponding to the gear shaft 704 is provided with a second rotating hole 5012, the second rotating hole 5012 is connected to the first rotating hole 5011, and the side of the second rotating hole 5012 facing the side wall of the portal frame 2 is open. The gear shaft 704 is connected to the second rotating hole 5012 through the elastic member rotating shaft 705. The engaging groove 702 is adapted to the fork 402, and the opening of the engaging groove 702 is formed with an inclined surface.

[0032] To summarize, when the fork 402 corresponds to the engagement groove 702 of the torsion roller 701, the hydraulic cylinder 601 controls the test piece 501 to move downward, thereby allowing the fork 402 to enter the engagement groove 702 of the torsion roller 701. Then, the test piece 501 is further controlled to move downward, so that the gear shaft 704 cooperates with the rack 8 to cause the torsion roller 701 to rotate, thereby simulating a torsional load test caused by uneven ground or shifted center of gravity of the cargo when the fork frame 4 is inserted into the cargo. By testing these different types of strength, the performance of the fork frame 4 under various actual working conditions can be comprehensively evaluated, ensuring that the fork frame 4 can operate safely and reliably in complex working environments.

[0033] The working process is as follows:

[0034] S1: If Figure 1 As shown, when in use, the mounting frame 401 of the fork frame 4 is fixed to the mounting base 3 by bolts, and then the distance between the two forks 402 can be adjusted by the adjustment mechanism 403;

[0035] S2: If Figure 1 and Figure 2 As shown, when the fork 402 corresponds to the horizontal area of ​​the fitting groove 502, the hydraulic cylinder 601 controls the test piece 501 to move downward, so that the contact plate 503 at the bottom of the test piece 501 presses down the fork 402, simulating the vertical pressure when the fork frame 4 carries the cargo;

[0036] S3: If Figure 1 and Figure 3 As shown, when the fork 402 corresponds to the inclined area of ​​the fitting groove 502, the hydraulic cylinder 601 controls the test piece 501 to move downward, so that the contact plate 503 at the bottom of the test piece 501 presses down on the fork 402, simulating the lateral force when the cargo rolls or the vehicle turns;

[0037] S4: As Figure 1 、 Figure 4 、 Figure 6 、 Figure 7 and Figure 8 As shown, when the fork 402 corresponds to the engagement groove 702 of the torsion roller 701, the hydraulic cylinder 601 controls the test piece 501 to move downward, thereby allowing the fork 402 to enter the engagement groove 702 of the torsion roller 701. The test piece 501 is then controlled to move downward, so that the gear shaft 704 cooperates with the rack 8 to cause the torsion roller 701 to rotate (after the gear shaft 704 engages with the rack 8, as the test piece 501 moves downward, the gear shaft 704 rotates. The cooperation between the gear shaft 704 and the plurality of engagement grooves 703 then causes the torsion roller 701 to rotate. At this time, the elastic member in the elastic member shaft 705 is in a torsion state), simulating a torsional load caused by an uneven ground surface or a shift in the center of gravity of the cargo when the fork frame 4 is inserted into the cargo.

[0038] S5: The force exerted on the fork frame 4 can be determined by the control system of the hydraulic cylinder 601 (the hydraulic cylinder 601 transmits pressure through hydraulic oil, converting liquid pressure energy into mechanical thrust; and according to Pascal's law, the pressure in a closed liquid is equal everywhere, so the thrust of the hydraulic cylinder 601 is directly related to the piston area and the system pressure).

[0039] S6: After the test is completed, the test piece 501 is controlled to move upward by the hydraulic cylinder 601. At this time, the torsion roller 701 can be reset by the cooperation between the gear shaft 704 and the rack 8 (that is, the engagement groove 702 of the torsion roller 701 is opened downward). At the same time, the elastic member shaft 705 is provided to enable the torsion roller 701 to maintain its original position when not subject to external force.

[0040] The hydraulic cylinder 601 , the control system of the hydraulic cylinder 601 , and the fork frame 4 described in this application are well-known technologies in the technical field, and therefore their specific structures and working principles are not described in detail.

[0041] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above 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, and such changes and improvements shall fall within the scope of the present invention as claimed.

Claims

1. A forklift fork frame strength detection device, characterized by: It comprises a base plate (1) and a fork frame (4), wherein a door frame (2) and a mounting seat (3) are fixedly mounted on the top of the base plate (1); Two testing mechanisms (5) for performing downward pressing, side pushing and torsion detection on the fork frame (4) are symmetrically provided inside the portal frame (2), and a control mechanism (6) for controlling the longitudinal movement thereof is provided at the top of the portal frame (2) at positions corresponding to the two testing mechanisms (5).

2. A forklift fork frame strength detection device according to claim 1, characterized in that: The testing mechanism (5) comprises a testing piece (501), a torsion assembly (7) being provided on a side of the testing piece (501) close to a side wall of the portal frame (2), an engaging groove (502) being provided on a bottom side of the testing piece (501) away from the torsion assembly (7), and a resisting plate (503) being fixedly mounted inside the engaging groove (502).

3. A forklift fork frame strength detection device according to claim 2, characterized in that: The fitting groove (502) comprises a horizontal area and an inclined area, and the abutment plate (503) is adapted to the fitting groove (502).

4. The forklift fork frame strength detection device according to claim 2, characterized in that: The torsion assembly (7) comprises a torsion roller (701) rotatably connected to the test piece (501), an outer surface of the torsion roller (701) is provided with a snap-fit ​​groove (702) and a plurality of meshing grooves (703), the torsion roller (701) is connected to a gear shaft (704) via the meshing grooves (703), and a rack (8) adapted to the gear shaft (704) is fixedly mounted on the side wall of the portal frame (2).

5. The forklift fork frame strength detection device according to claim 4, characterized in that: The test piece (501) is provided with a first rotating hole (5011) at a position corresponding to the twisting roller (701), and the bottom of the first rotating hole (5011) is open. The test piece (501) is provided with a second rotating hole (5012) at a position corresponding to the gear shaft (704), and the second rotating hole (5012) is connected to the first rotating hole (5011). The second rotating hole (5012) is open on a side facing the side wall of the portal frame (2), and the gear shaft (704) is connected to the second rotating hole (5012) via an elastic member rotating shaft (705).

6. The forklift fork frame strength detection device according to claim 5, characterized in that: The opening of the engaging groove (702) is formed with an inclined surface.

7. The forklift fork frame strength detection device according to claim 2, characterized in that: The control mechanism (6) includes a hydraulic cylinder (601) fixedly mounted on the top of the portal frame (2), a connecting plate (602) fixedly provided at the output end of the hydraulic cylinder (601), the output end of the hydraulic cylinder (601) passing through the portal frame (2), the connecting plate (602) being located on the inner side of the portal frame (2), and the connecting plate (602) being fixedly mounted on the test piece (501) by means of bolts.

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