Tray testing machine
By designing a pallet testing machine including an oil press, an electrical control cabinet, a pallet seat, a weighing sensor and a pressure plate, the problem of lack of effective verification of pallet bearing capacity and durability in the prior art is solved, and a safe and reliable pallet performance test is achieved.
Patent Information
- Application Number
- CN202421486138.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-06-26
AI Technical Summary
The prior art lacks convenient and effective methods to verify the load-bearing capacity and durability of the pallet, affecting the safety of use.
A pallet tester is designed, including a hydraulic press, an electrical control cabinet, a pallet seat, a weighing sensor and a pressure plate. The pressure at the lifting point of the car is simulated through hydraulic cylinders and hydraulic columns, and combined with a weighing sensor and a limit sensor to test the load-bearing capacity and durability of the pallet.
The device can effectively verify the load-bearing capacity and durability of the pallet, provide reliable test data, help improve pallet design and manufacturing, and improve use safety.
Smart Images
Figure CN222671397U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of pallet testing, and in particular relates to a pallet testing machine. Background Art
[0002] A vehicle lift is a device used to lift a vehicle during vehicle maintenance. It can be operated to lift the vehicle to a certain height. The lift's tray is a component that directly contacts the vehicle chassis for support when the lift is working. It is one of the important components in the lift's working process. When its strength and load-bearing capacity are poor, it is prone to cracks or even tears, which seriously affects the safety of use. Therefore, in the process of technical improvement and production of such pallets, it is necessary to test the pallet's load-bearing capacity and durability to test the pallet's performance. At present, there is no convenient and effective method in the industry to verify the above performance of the pallet.
[0003] In view of the above-mentioned prior art, the applicant has made a useful design, and the technical solution to be introduced below is produced in this context. Utility Model Content
[0004] The utility model aims to provide a pallet testing machine capable of verifying the load-bearing capacity and durability parameters of a pallet.
[0005] The purpose of the utility model is achieved in this way. A pallet testing machine includes an oil hydraulic press, an electric control cabinet, a pallet seat, a weighing sensor and a pressure plate. The oil hydraulic press includes a base, a connecting seat and a hydraulic mechanism. The hydraulic mechanism includes a hydraulic cylinder and a hydraulic column. A workbench is formed on the base. The connecting seat is arranged on the workbench. The electric control cabinet is fixed on the connecting seat. The pallet seat is arranged on the workbench and is located below the connecting seat for supporting the pallet. The hydraulic cylinder is fixed on the connecting seat. The hydraulic column is located at the lower part of the hydraulic cylinder and extends toward the direction of the pallet seat. The pressure plate is arranged at the lower end of the hydraulic column. The weighing sensor is arranged between the hydraulic column and the pressure plate.
[0006] In a specific embodiment of the present utility model, the connecting seat includes a pair of longitudinal beams and a cross beam connecting the top ends of the pair of longitudinal beams, the lower ends of the pair of longitudinal beams are fixedly connected to the workbench, the hydraulic cylinder is arranged on the cross beam from top to bottom, and the electric control cabinet is arranged on the outside of one of the pair of longitudinal beams.
[0007] In another specific embodiment of the utility model, a motor is also included, and the hydraulic mechanism also includes a hydraulic distributor and a hydraulic oil tank. The hydraulic distributor is fixedly arranged on the base, and the hydraulic oil tank is arranged in the base. The hydraulic pump of the hydraulic oil tank is transmission-connected to the motor, and the hydraulic distributor is connected to the hydraulic cylinder through a pipeline.
[0008] In another specific embodiment of the utility model, it also includes a limit rod and a limit sensor, one end of the limit rod is connected to the side wall of the hydraulic column, one of the pair of longitudinal beams is provided with a clearance groove along the height direction, the other end of the limit rod extends horizontally into the clearance groove, and the limit sensor is located above the limit rod and fixed to the cross beam.
[0009] In another specific embodiment of the utility model, the electric control cabinet has a digital display, and is electrically connected to the hydraulic distributor, weighing sensor, motor and limit sensor respectively. The electric control cabinet is provided with a control button for controlling the switching of the hydraulic distributor, and an electromagnetic valve of the hydraulic distributor is connected to the weighing sensor through a pipeline, and another electromagnetic valve is connected to the limit sensor through a pipeline.
[0010] In another specific embodiment of the present invention, the tray seat is a flange seat, and the flange seat is connected and fixed to the workbench by fastening screws.
[0011] In a further specific embodiment of the present invention, the contact surface between the pressure plate and the tray is designed according to the lifting point of the automobile.
[0012] Due to the adoption of the above structure, the utility model has the following beneficial effects compared with the prior art: the device is improved on the basis of the oil hydraulic press and is easy to implement; the contact surface between the pressure plate and the pallet is designed according to the actual automobile lifting point, which can simulate the actual use scenario of the pallet and help verify the two important parameters of the pallet, namely the load-bearing capacity and durability; the pallet seat can be quickly disassembled and replaced, so that it can be adapted to pallets of different specifications; the electric control cabinet with digital display can display the real-time pressure and the number of tests, which is convenient for the operator to intuitively understand the experimental data, and can provide a reliable test basis for the improved design and manufacturing of the pallet. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a three-dimensional diagram of the utility model;
[0014] Figure 2 It is a front view of the utility model.
[0015] In the figure: 1. hydraulic press, 11. base, 111. workbench, 12. connecting seat, 121. longitudinal beam, 1211. make way groove, 122. cross beam, 13 hydraulic cylinder, 14. hydraulic column, 15. hydraulic distributor; 2. electric control cabinet; 3. pallet seat; 4. weighing sensor; 5. pressure plate; 6. motor; 7. limit rod; 8. limit sensor; 9. pallet. DETAILED DESCRIPTION
[0016] The specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings, but the description of the embodiments is not a limitation of the technical solution. Any changes in form rather than substance based on the concept of the present invention should be regarded as the protection scope of the present invention.
[0017] In the following description, all concepts related to directionality (or orientation) such as up, down, left, right, front and back are referring to the position state of the figure being described, and are intended to facilitate public understanding. Therefore, they should not be understood as special limitations on the technical solutions provided by the present utility model.
[0018] See also Figure 1 and Figure 2 The utility model relates to a pallet testing machine, including an oil hydraulic machine 1, an electric control cabinet 2, a pallet seat 3, a weighing sensor 4, a pressure plate 5 and a motor 6. The oil hydraulic machine 1 includes a base 11, a connecting seat 12 and a hydraulic mechanism, the hydraulic mechanism includes a hydraulic cylinder 13, a hydraulic column 14, a hydraulic distributor 15 and a hydraulic oil tank, the hydraulic distributor 15 is fixedly arranged on the base 11, and the hydraulic oil tank is arranged in the base 11. A workbench 111 is formed on the base 11; the connecting seat 12 includes a pair of longitudinal beams 121 and a cross beam 122 connecting the top ends of the pair of longitudinal beams 121, the lower ends of the pair of longitudinal beams 121 are fixedly connected to the workbench 111, the hydraulic cylinder 13 is arranged on the cross beam 122 from top to bottom, and the electric control cabinet 2 is arranged on the outside of one of the longitudinal beams 121 in the pair of longitudinal beams 121. The pallet seat 3 is arranged on the workbench 111 and below the cross beam 122, and is used to support the pallet 9 to be tested. The pallet seat 3 is a flange seat, which is connected and fixed to the workbench 111 by fastening screws 31, and can be quickly disassembled and replaced, so that it can adapt to pallets 9 of different specifications. The hydraulic column 14 is located at the lower part of the hydraulic cylinder 13 and extends in the direction of the pallet seat 3. The pressure plate 5 is arranged at the lower end of the hydraulic column 14, and the weighing sensor 4 is arranged between the hydraulic column 14 and the pressure plate 5, and is used to monitor the pressure applied by the hydraulic column 14 to the pallet 9. The contact surface of the pressure plate 5 with the pallet 9 is designed according to the lifting point of the car, which can simulate the actual use scenario of the pallet 9. The motor 6 is mounted on the base 11, and its transmission shaft extends downward into the inner cavity of the base 11 and is transmission-connected to the hydraulic pump of the hydraulic oil tank.
[0019] Furthermore, it also includes a limit rod 7 and a limit sensor 8. One end of the limit rod 7 is connected to the side wall of the hydraulic column 14, one of the pair of longitudinal beams 121 is provided with a clearance groove 1211 along the height direction, and the other end of the limit rod 7 extends horizontally into the clearance groove 1211, the limit sensor 8 is located above the limit rod 7 and fixed to the cross beam 122, and the limit sensor 8 cooperates with the limit rod 7 to limit the rise of the hydraulic column 14.
[0020] The hydraulic distributor 15 is connected to the hydraulic cylinder 13 through a pipeline, and one solenoid valve of the hydraulic distributor 15 is connected to the weighing sensor 4 through a pipeline, and the other solenoid valve is connected to the limit sensor 8 through a pipeline. The electric control cabinet 2 is electrically connected to the hydraulic distributor 15, the weighing sensor 4, the motor 6 and the limit sensor 8 respectively. The electric control cabinet 2 is provided with a control button and a power button for controlling the switching of the hydraulic distributor 15. The electric control cabinet 2 has a digital display that can display real-time pressure and test times, so that the operator can intuitively understand the experimental data.
[0021] When conducting the test, select a suitable pallet seat 3 according to the size of the pallet 9, fix the pallet seat 3 on the workbench 111, place the pallet 9 in the pallet seat 3, set the corresponding parameters (including pressure, number of tests, and pressure holding time) on the electric control cabinet 2, and then press the start button. The motor 6 drives the oil pump of the hydraulic press 1 to start working, and the hydraulic cylinder 13 starts to reciprocate up and down, driving the pressure plate 5 to repeatedly pressurize the pallet 9 according to the set pressure and pressure holding time, until the number of tests reaches the preset number, it will automatically stop, thereby verifying the load-bearing capacity and durability parameters of the pallet. When the weighing sensor 4 and the limit sensor 8 detect that the preset threshold is exceeded, the hydraulic distributor 15 is used to control the hydraulic cylinder 13 to switch the action. Since this solution is improved on the basis of the hydraulic press 1, its oil circuit control around the electric control box 2 is the same as the hydraulic press 1, and its detailed description is omitted here.
Claims
1. A pallet testing machine, characterized in that: The invention comprises an oil hydraulic machine (1), an electric control cabinet (2), a pallet seat (3), a weighing sensor (4) and a pressure plate (5). The oil hydraulic machine (1) comprises a base (11), a connecting seat (12) and a hydraulic mechanism. The hydraulic mechanism comprises a hydraulic cylinder (13) and a hydraulic column (14). A workbench (111) is formed on the base (11). The connecting seat (12) is arranged on the workbench (111). The electric control cabinet (2) is fixed on the connecting seat (12). The pallet seat (3) is arranged on the workbench (111) and is located below the connecting seat (12) for supporting a pallet (9). The hydraulic cylinder (13) is fixed on the connecting seat (12). The hydraulic column (14) is located at the lower part of the hydraulic cylinder (13) and extends toward the pallet seat (3). The pressure plate (5) is arranged at the lower end of the hydraulic column (14). The weighing sensor (4) is arranged between the hydraulic column (14) and the pressure plate (5).
2. The pallet testing machine according to claim 1, characterized in that: The connecting seat (12) comprises a pair of longitudinal beams (121) and a cross beam (122) connecting the top ends of the pair of longitudinal beams (121); the lower ends of the pair of longitudinal beams (121) are fixedly connected to the workbench (111); the hydraulic cylinder (13) is arranged on the cross beam (122) from top to bottom; and the electric control cabinet (2) is arranged on the outside of one of the longitudinal beams (121) in the pair of longitudinal beams (121).
3. The pallet testing machine according to claim 2, characterized in that: It also includes a motor (6), and the hydraulic mechanism also includes a hydraulic distributor (15) and a hydraulic oil tank, the hydraulic distributor (15) is fixedly arranged on the base (11), the hydraulic oil tank is arranged in the base (11), the hydraulic pump of the hydraulic oil tank is transmission-connected to the motor (6), and the hydraulic distributor (15) is connected to the hydraulic cylinder (13) through a pipeline.
4. The pallet testing machine according to claim 3, characterized in that: It also includes a limit rod (7) and a limit sensor (8), one end of the limit rod (7) is connected to the side wall of the hydraulic column (14), one of the pair of longitudinal beams (121) is provided with a clearance groove (1211) along the height direction, the other end of the limit rod (7) extends horizontally into the clearance groove (1211), and the limit sensor (8) is located above the limit rod (7) and is fixed to the cross beam (122).
5. The pallet testing machine according to claim 4, characterized in that: The electric control cabinet (2) has a digital display. The electric control cabinet (2) is electrically connected to the hydraulic distributor (15), the weighing sensor (4), the motor (6) and the limit sensor (8) respectively. The electric control cabinet (2) is provided with a control button for controlling the switching of the hydraulic distributor (15). An electromagnetic valve of the hydraulic distributor (15) is connected to the weighing sensor (4) through a pipeline, and another electromagnetic valve is connected to the limit sensor (8) through a pipeline.
6. The pallet testing machine according to claim 1, characterized in that: The tray seat (3) is a flange seat, and the flange seat is connected and fixed to the workbench (111) by means of fastening screws (31).
7. The pallet testing machine according to claim 1, characterized in that: The contact surface of the pressure plate (5) with the tray (9) is designed according to the lifting point of the automobile.