Test simulation device for hydraulic synchronous system

Abstract

The utility model provides a hydraulic synchronizing system test simulation device. A hydraulic synchronizing system comprises a plurality of hydraulic cylinders and a synchronous motor. The test simulation device comprises a hydraulic pump station, a fixedly-arranged working table top and a lifting table top located above the working table top. The working table top is horizontally arranged, the hydraulic cylinders are installed on the working table top at intervals and vertically arranged, the lifting table top is detachably connected with piston rods of the hydraulic cylinders, the upper end of the piston rod of each hydraulic cylinder is movably connected with the lower end of the lifting table top through a connecting piece so that the lifting table top can incline, and a horizontal ruler is installed on the lifting table top. A plurality of hydraulic cylinders can be measured at the same time, and the testing labor cost is saved; synchronous and asynchronous conditions of the hydraulic system can be simulated, and potential problems of the hydraulic system and a hydraulic cylinder can be tested visually and conveniently; periodic reciprocating testing can be achieved, the operation reliability of the hydraulic synchronous system is tested, and the situation that disassembling, assembling and replacing are needed when problems occur during assembling is avoided.

Description

Technical Field

[0001] The utility model belongs to the field of hydraulic test simulation devices, and in particular relates to a hydraulic synchronization system test simulation device. Background Art

[0002] A large number of four-way shuttles are required in intelligent vertical warehouses. Each four-way shuttle is equipped with a corresponding synchronization, lifting and reversing hydraulic system. Under the intelligent WCS dispatching system, the four-way shuttle frequently and quickly lifts, reverses and transfers to quickly place or take out the goods. The hydraulic synchronization system includes multiple hydraulic cylinders and synchronous motors that control the synchronization of multiple hydraulic cylinders. During operation, the hydraulic synchronization system of the four-way shuttle is greatly tested. The reliability of the hydraulic synchronization system is related to the operation of the entire intelligent vertical warehouse.

[0003] Using a single tool to test the reversing or lifting cylinder is inefficient and cannot test the synchronization of the hydraulic system; relying on equipping the hydraulic cylinder to the four-way shuttle for test simulation, the convenience of disassembly and replacement is poor after problems occur, and the four-way shuttle is damaged after disassembly, resulting in damage to the workpiece and waste of labor resources. Therefore, it is necessary to design a simulation device to simulate the synchronization of the hydraulic synchronization system.

[0004] After searching, no similar technical solution to the present utility model has been disclosed. Utility Model Content

[0005] The utility model aims to solve the technical problems existing in the prior art and provides a hydraulic synchronization system test simulation device.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a hydraulic synchronization system test simulation device, including a hydraulic synchronization system including multiple hydraulic cylinders, and a synchronous motor for controlling the synchronization of the multiple hydraulic cylinders; the test simulation device includes a hydraulic pump station, a fixedly arranged work surface, and a lifting table located above the work surface; the work surface is arranged horizontally, and multiple hydraulic cylinders are installed on the work surface at intervals and arranged vertically, the lifting table and the piston rod of the hydraulic cylinder are detachably connected, and the upper end of the piston rod of each hydraulic cylinder is movably connected to the lower end of the lifting table through a connecting piece so that the lifting table can be tilted, and a level ruler is installed on the lifting table; the hydraulic pump station has a multi-way reversing valve, and the hydraulic pump station can directly supply oil or return oil to the multiple hydraulic cylinders through the multi-way reversing valve, and the hydraulic pump station can supply oil or return oil to the multiple hydraulic cylinders through the synchronous motor through the multi-way reversing valve.

[0007] The above technical scheme, by setting up a hydraulic pump station to provide hydraulic pressure, the lifting table is connected to multiple hydraulic cylinders at the same time, and multiple hydraulic cylinders can be measured at the same time, thereby improving efficiency and saving testing labor costs; by setting a level ruler to observe whether the lifting table is in a horizontal state or an inclined state during the test, so as to simulate the synchronous and asynchronous conditions of the hydraulic system, and intuitively and conveniently test potential problems of the hydraulic system and hydraulic cylinders; by making the hydraulic cylinder rise and fall back and forth, periodic reciprocating testing is achieved to test the operating reliability of the hydraulic synchronization system, thereby avoiding the situation where problems arise during installation and require disassembly and replacement.

[0008] In a preferred embodiment of the present utility model, the number of the hydraulic cylinders is four, and the four hydraulic cylinders are evenly distributed below the lifting table.

[0009] In a preferred embodiment of the utility model, the level is a circular universal level, and a level is installed at the center of the upper end of the lifting table; or the lifting table is a rectangular plate, the level is a strip ruler, and a level is set on two adjacent sides of the lifting table.

[0010] The above technical solution provides two implementation methods of setting one level ruler and two level rulers. The type and number of the level rulers should be selected according to actual conditions.

[0011] In a preferred embodiment of the present invention, the test simulation device further comprises a load block detachably connected to the upper end of the lifting table.

[0012] The above technical solution, by setting the load block, makes the gravity distribution of the lifting table uneven, and the load acting on the hydraulic cylinder is different. Compared with processing the lifting table into a structure with uneven force, it is more intuitive.

[0013] In a preferred embodiment of the present utility model, the test simulation device further comprises a support frame, the work surface is fixed on the support frame, and the hydraulic pump station is installed in the support frame.

[0014] The above technical solution, by providing a supporting frame, makes the test simulation device more integrated and easier to move.

[0015] In another preferred embodiment of the present invention, the connecting member is a spherical bearing, one of the outer ring and the inner ring of the spherical bearing is connected to the upper end of the piston rod of the hydraulic cylinder, and the other is connected to the lower end of the lifting table.

[0016] In the above technical solution, the spherical bearing is a universal bearing, which can adaptively adjust the tilt direction of the lifting table according to the non-synchronicity of the hydraulic cylinder.

[0017] In another preferred embodiment of the utility model, the lower end of the inner ring of the spherical bearing is fixedly connected with a vertically arranged stud, and the stud is threadedly connected to the upper end of the hydraulic cylinder piston rod; the outer ring of the spherical bearing is connected to the lower end of the lifting table, and the axis of the outer ring of the spherical bearing is perpendicular to the lifting table.

[0018] In the above technical solution, before the test begins, the support table can be leveled by rotating the stud of the joint bearing to avoid the situation where the support table is not level due to component processing errors.

[0019] In another preferred embodiment of the utility model, the test simulation device also includes an operating cabinet, which is provided with a pump station button, an up button, a down button, and a synchronous test button and an asynchronous test button connected to the multi-way reversing valve; the pump station button is arranged on the power supply circuit of the hydraulic pump station, for controlling the start and stop of the hydraulic pump station; the up button is arranged on the oil supply circuit of the hydraulic pump station, for controlling the oil supply of the hydraulic pump station to make the piston rod of the hydraulic cylinder rise; the down button is arranged on the return oil circuit of the hydraulic pump station, for controlling the return oil of the hydraulic pump station to make the piston rod of the hydraulic cylinder drop; the synchronous test button is connected to the first reversing end of the multi-way reversing valve, for switching the oil circuit, so that the oil supply and return oil of the hydraulic pump station act on the hydraulic cylinder after passing through the synchronous motor; the asynchronous test button is connected to the second reversing end of the multi-way reversing valve, for switching the oil circuit, so that the oil supply and return oil of the hydraulic pump station directly act on the hydraulic cylinder.

[0020] The above technical solution improves the convenience of operation and facilitates testing by arranging a pump station button, an up button, a down button, a synchronous test button and an asynchronous test button on the operating cabinet.

[0021] In another preferred embodiment of the utility model, a periodic test button for controlling the periodic oil supply and return of the hydraulic pump station so that the piston rod of the hydraulic cylinder rises and falls periodically is also provided on the operating cabinet. The periodic test button is connected to the starting end of the first timer, the timing output end of the first timer is connected to the starting end of the second timer and the oil supply control end of the hydraulic pump station, and the timing output end of the second timer is connected to the starting end of the first timer and the oil return control end of the hydraulic pump station.

[0022] The above technical solution, by setting a periodic test button, eliminates the need for people to manually repeatedly press the up button and the down button, thereby reducing people's labor intensity.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0025] Figure 1 It is a schematic diagram of the main structure of the hydraulic synchronization system test simulation device of the embodiment.

[0026] Figure 2 yes Figure 1 A partial enlarged view of point A in the figure.

[0027] Figure 3 The figure numerals in the drawings of the specification include: working table 1, lifting table 2, countersunk hole 21, support frame 3, operating cabinet 4, hydraulic pump station 5, hydraulic cylinder 6, connecting piece (spherical bearing) 7, inner ring 71, outer ring 72, stud 73, synchronous motor 8, level 9, load block 10. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "vertical", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In the description of the present utility model, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection of two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0031] The utility model provides a hydraulic synchronization system test simulation device, such as Figure 1As shown, the hydraulic synchronization system includes a plurality of hydraulic cylinders 6 and a synchronous motor 8 for controlling the synchronization of the plurality of hydraulic cylinders 6. In a preferred embodiment, the test simulation device includes a hydraulic pump station 5, a fixed work surface 1, and a lifting surface 2 located above the work surface 1.

[0032] The work surface 1 is arranged horizontally, and a plurality of hydraulic cylinders 6 are installed on the work surface 1 at intervals and arranged vertically. There are four hydraulic cylinders 6, and the four hydraulic cylinders 6 are of the same model. The four hydraulic cylinders 6 are evenly distributed below the lifting surface 2, for example, a hydraulic cylinder 6 is arranged at each of the four corners of the lifting surface 2. The lifting surface 2 is detachably connected to the piston rod of the hydraulic cylinder 6, and the upper end of the piston rod of each hydraulic cylinder 6 is movably connected to the lower end of the lifting surface 2 through a connecting piece 7, so that the lifting surface 2 can be tilted. A level ruler 9 for measuring whether the bracket surface is tilted is installed on the lifting surface 2, and a load block 10 is detachably connected to the upper end of the lifting surface 2.

[0033] The hydraulic pump station 5 has a multi-way reversing valve. The hydraulic pump station 5 is connected to the hydraulic cylinder 6 and the synchronous motor 8 through pipelines. The hydraulic pump station 5 supplies oil to and returns oil to the hydraulic cylinder 6 and the synchronous motor 8. The hydraulic pump station 5 can directly supply oil to or return oil to multiple hydraulic cylinders 6 through the multi-way reversing valve. The hydraulic pump station 5 can supply oil to or return oil to multiple hydraulic cylinders 6 through the synchronous motor 8 through the multi-way reversing valve. For example, the synchronous motor 8 and the hydraulic cylinder 6 can be connected in series in an oil circuit through a first pipeline, and a second pipeline arranged in parallel with the synchronous motor 8 is directly connected to the hydraulic cylinder 6. The hydraulic oil provided by the hydraulic pump station 5 is controlled by the multi-way reversing valve to act on the hydraulic cylinder 6 through the first pipeline and the synchronous motor 8, or directly act on the hydraulic cylinder 6 through the second pipeline. The specific connection method is a conventional technology in the hydraulic field, which is not the innovation of the present utility model and will not be described in detail here.

[0034] In the present utility model, the test simulation device further comprises a support frame 3 capable of being supported on the ground, the work surface 1 is fixed on the support frame 3 , and the hydraulic pump station 5 is installed in the support frame 3 .

[0035] like Figure 1 and Figure 2 As shown, in the present invention, the level ruler 9 is a circular universal level, and a level ruler 9 is installed at the center of the upper end of the lifting table 2. Preferably, the level ruler 9 is embedded in the top of the lifting table 2, and the upper surface of the level ruler 9 is not higher than the upper surface of the lifting table 2. It should be noted that the lifting table 2 can also be set as a rectangular plate, the level ruler 9 is a strip ruler, and the level ruler 9 is set on two adjacent sides of the lifting table 2.

[0036] like Figure 1-Figure 3As shown, in the utility model, the connecting member 7 is a spherical bearing, and the outer ring 72 of the spherical bearing 7 is spherically matched with its inner ring 71. One of the outer ring 72 and the inner ring 71 of the spherical bearing is connected to the upper end of the piston rod of the hydraulic cylinder 6, and the other is connected to the lower end of the lifting table 2.

[0037] Specifically, the inner ring 71 of the spherical bearing 7 is a spherical body, and the lower end of the inner ring 71 of the spherical bearing 7 is fixedly connected with a vertically arranged stud 73, and the stud 73 is threadedly connected to the upper end of the piston rod of the hydraulic cylinder 6; the outer ring 72 of the spherical bearing 7 is connected to the lower end of the lifting table 2, and the axis of the outer ring 72 of the spherical bearing 7 is perpendicular to the lifting table 2. For example, the lower end of the lifting table 2 is provided with a countersunk hole 21, and the countersunk hole 21 is set through the upper surface of the lifting table 2. The outer ring 72 of the spherical bearing 7 is inserted into the large hole of the countersunk hole 21 and is limited by the step of the countersunk hole 21. The inner ring 71 of the spherical bearing 7 is partially located in the small hole of the countersunk hole 21. Figure 1 As shown, in another preferred embodiment, the test simulation device further includes an operation cabinet 4, which is mounted on the support frame 3 or the work surface 1. The operation cabinet 4 is provided with a pump station button, an ascending button, a descending button, and a synchronous test button and an asynchronous test button connected to the multi-way reversing valve. Among them, the pump station button is arranged on the power supply circuit of the hydraulic pump station 5, and is used to control the start and stop of the hydraulic pump station 5; the ascending button is arranged on the oil supply circuit of the hydraulic pump station 5, and is used to control the oil supply of the hydraulic pump station 5 to make the piston rod of the hydraulic cylinder 6 rise; the descending button is arranged on the oil return circuit of the hydraulic pump station 5, and is used to control the oil return of the hydraulic pump station 5 to make the piston rod of the hydraulic cylinder 6 fall; the synchronous test button is connected to the first reversing end of the multi-way reversing valve, and is used to switch the oil circuit to the first pipeline, so that the oil supply and return of the hydraulic pump station 5 act on the hydraulic cylinder 6 after passing through the synchronous motor 8; the asynchronous test button is connected to the second reversing end of the multi-way reversing valve, and is used to switch the oil circuit to the second pipeline, so that the oil supply and return of the hydraulic pump station 5 directly act on the hydraulic cylinder 6.

[0038] When using the test simulation device, four hydraulic cylinders 6 of the same model to be tested are arranged on the work surface 1 and connected with hydraulic pipelines. A joint bearing 7 is installed on the top of the piston rod of the hydraulic cylinder 6, and a lifting surface 2 is placed on the joint bearing 7. By rotating the stud 73 of the joint bearing 7 and observing the level ruler 9, the lifting surface 2 is completely level.

[0039] To simulate the synchronicity of the synchronous hydraulic system, press the synchronization test button. The hydraulic pump station 5 applies hydraulic energy to the hydraulic cylinder 6 through the synchronous motor 8. Press the up button and the down button several times to exhaust the air in the hydraulic pipeline. Place the load block 10 at the rightmost position of the lifting table 2 to make the gravity distribution of the lifting table 2 uneven. Press the up button to extend the piston rod of the hydraulic cylinder 6 to make the lifting table 2 rise. Observe the horizontal ruler 9 of the lifting table 2 during the rising process to detect the synchronicity of the hydraulic cylinder 6 rising; press the down button to retract the piston rod of the hydraulic cylinder 6 to make the lifting table 2 fall. Observe the horizontal ruler 9 of the lifting table 2 during the falling process to detect the synchronicity of the hydraulic cylinder 6 falling.

[0040] To simulate the asynchronism of the synchronous hydraulic system, press the asynchronous test button, and the hydraulic pump station 5 directly applies hydraulic energy to the hydraulic cylinder 6. Press the rising button to extend the piston rod of the hydraulic cylinder 6, observe the horizontal ruler 9 during the rising process of the lifting table 2, and detect the asynchronism of the rising of the hydraulic cylinder 6; press the descending button to retract the piston rod of the hydraulic cylinder 6, observe the horizontal ruler 9 during the descending process of the lifting table 2, and detect the asynchronism of the descending of the hydraulic cylinder 6. Due to the uneven force on the lifting table 2, the loads acting on each hydraulic cylinder 6 are different, and the lifting table 2 will tilt under the support of the joint bearing 7, which can be seen in the horizontal ruler 9.

[0041] In the present utility model, there is a certain gap between the inner ring 71 and the outer ring 72 of the spherical bearing 7. During the asynchronous test, the tilt angle of the lifting table 2 is small. The hydraulic cylinder 6 is connected to the lifting table 2 through the spherical bearing 7, and can adapt to the tilt of the lifting table 2. It should be noted that if the tilt angle of the lifting table 2 is large during the asynchronous test, and the tilt of the lifting table 2 cannot be adapted to the gap between the inner ring 71 and the outer ring 72 of the spherical bearing 7, the lower end of the hydraulic cylinder 6 can be connected to the work table 1 by a ball joint to form a four-bar linkage to adapt to the tilt of the lifting table 2.

[0042] In another preferred embodiment, the operating cabinet 4 is also provided with a periodic test button for controlling the periodic oil supply and oil return of the hydraulic pump station 5 so that the piston rod of the hydraulic cylinder 6 rises and falls periodically. Specifically, the periodic test button is connected to the starting end of the first timer, the timing output end of the first timer is connected to the starting end of the second timer and the oil supply control end of the hydraulic pump station 5, and the timing output end of the second timer is connected to the starting end of the first timer and the oil return control end of the hydraulic pump station 5.

[0043] By pressing the periodic test button, the hydraulic cylinder 6 will perform periodic rising and falling actions to test the stability of the synchronous hydraulic system.

[0044] In the description of this specification, the description with reference to the terms "preferred embodiment", "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0045] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A hydraulic synchronization system test simulation device, wherein the hydraulic synchronization system comprises a plurality of hydraulic cylinders and a synchronous motor for controlling the synchronization of the plurality of hydraulic cylinders; characterized in that: The test simulation device includes a hydraulic pump station, a fixed working table, and a lifting table located above the working table; The work surface is arranged horizontally, and a plurality of hydraulic cylinders are installed on the work surface at intervals and arranged vertically. The lifting surface is detachably connected to the piston rod of the hydraulic cylinder, and the upper end of the piston rod of each hydraulic cylinder is movably connected to the lower end of the lifting surface through a connecting piece so that the lifting surface can be tilted, and a level ruler is installed on the lifting surface; The hydraulic pump station has a multi-way reversing valve, through which the hydraulic pump station can directly supply oil or return oil to a plurality of hydraulic cylinders, and through which the hydraulic pump station can supply oil or return oil to a plurality of hydraulic cylinders via the synchronous motor.

2. The hydraulic synchronization system test simulation device according to claim 1, characterized in that: The number of the hydraulic cylinders is four, and the four hydraulic cylinders are evenly distributed below the lifting table.

3. The hydraulic synchronization system test simulation device according to claim 2, characterized in that: The level ruler is a circular universal level, and one level ruler is installed at the center of the upper end of the lifting table; Alternatively, the lifting table is a rectangular plate, the level ruler is a strip ruler, and the level ruler is arranged on two adjacent sides of the lifting table.

4. The hydraulic synchronization system test simulation device according to claim 1, characterized in that: It also includes a load block detachably connected to the upper end of the lifting table.

5. The hydraulic synchronization system test simulation device according to claim 1, characterized in that: It also includes a supporting frame, the work surface is fixed on the supporting frame, and the hydraulic pump station is installed in the supporting frame.

6. The hydraulic synchronization system test simulation device according to any one of claims 1 to 5, characterized in that: The connecting piece is a spherical bearing, one of the outer ring and the inner ring of the spherical bearing is connected to the upper end of the piston rod of the hydraulic cylinder, and the other is connected to the lower end of the lifting table.

7. The hydraulic synchronization system test simulation device according to claim 6, characterized in that: The lower end of the inner ring of the spherical bearing is fixed with a vertically arranged stud, and the stud is threadedly connected to the upper end of the hydraulic cylinder piston rod; the outer ring of the spherical bearing is connected to the lower end of the lifting table, and the axis of the outer ring of the spherical bearing is perpendicular to the lifting table.

8. The hydraulic synchronization system test simulation device according to any one of claims 1 to 5, characterized in that: It also includes an operating cabinet, on which a pump station button, an up button, a down button, and a synchronous test button and an asynchronous test button connected to the multi-way reversing valve are arranged; The pump station button is arranged on the power supply circuit of the hydraulic pump station and is used to control the start and stop of the hydraulic pump station; The rising button is arranged on the oil supply circuit of the hydraulic pump station, and is used to control the oil supply of the hydraulic pump station to raise the piston rod of the hydraulic cylinder; The descending button is arranged on the oil return circuit of the hydraulic pump station, and is used to control the oil return of the hydraulic pump station to make the piston rod of the hydraulic cylinder descend; The synchronous test button is connected to the first reversing end of the multi-way reversing valve, and is used to switch the oil circuit so that the oil supply and return oil of the hydraulic pump station act on the hydraulic cylinder after passing through the synchronous motor; The asynchronous test button is connected to the second reversing end of the multi-way reversing valve and is used to switch the oil circuit so that the oil supply and return oil of the hydraulic pump station directly act on the hydraulic cylinder.

9. The hydraulic synchronization system test simulation device according to claim 8, characterized in that: The operating cabinet is also provided with a periodic test button for controlling the periodic oil supply and return of the hydraulic pump station so that the piston rod of the hydraulic cylinder rises and falls periodically. The periodic test button is connected to the starting end of the first timer, the timing output end of the first timer is connected to the starting end of the second timer and the oil supply control end of the hydraulic pump station, and the timing output end of the second timer is connected to the starting end of the first timer and the oil return control end of the hydraulic pump station.

Images