CN110345059B - Detection equipment and detection method for bidirectional hand-operated pump - Google Patents

Detection equipment and detection method for bidirectional hand-operated pump Download PDF

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Publication number
CN110345059B
CN110345059B CN201910628725.8A CN201910628725A CN110345059B CN 110345059 B CN110345059 B CN 110345059B CN 201910628725 A CN201910628725 A CN 201910628725A CN 110345059 B CN110345059 B CN 110345059B
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communicated
hand pump
valve
oil
bidirectional
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CN110345059A (en
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陆骏东
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Nanjing Technological Military State Special Intelligent Equipment Research Institute Co ltd
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Nanjing Technological Military State Special Intelligent Equipment Research Institute Co ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B51/00Testing machines, pumps, or pumping installations

Abstract

The invention discloses a detection device and a detection method for a bidirectional hand pump, wherein the detection device for the bidirectional hand pump comprises: two-way hand pump, rotate the two-way speed control system who is connected with two-way hand pump, with the hydraulic system of two-way hand pump intercommunication to and the electrical apparatus switch board who is connected with two-way speed control system and hydraulic system, wherein two-way speed control system includes: rotate the speed reducer of being connected with two-way hand pump, rotate the buncher of being connected with the input of speed reducer to and the encoder of being connected with the buncher, hydraulic system includes: the oil tank is communicated with the direction control group, and the pressure gauge is connected in parallel between the bidirectional hand pump and the overflow valve. The invention can avoid errors caused by manual operation and accurately measure the output flow and pressure values of the bidirectional hand pump under different working conditions.

Description

Detection equipment and detection method for bidirectional hand-operated pump
Technical Field
The invention relates to the field of hydraulic pump detection, in particular to a detection device and a detection method for a bidirectional hand pump.
Background
As a hydraulic pump which can provide power to drive an actuating mechanism for a hydraulic system in a manual manner under the condition that a main oil source such as a motor in the hydraulic system fails, a bidirectional hand pump needs to ensure that sufficient pressure and flow can be provided for the hydraulic system under the condition of manual driving, and therefore the pressure and flow output under different working conditions need to be detected.
During detection, the rotating speed cannot be kept constant due to manual shaking of the bidirectional hand pump, the output flow rate of the bidirectional hand pump is very small (< 0.5L/min) and other factors, so that the average output flow rate of the bidirectional hand pump can not be accurately measured by using a common flow meter, the average output flow rate of the bidirectional hand pump needs to be calculated according to the output total flow rate, errors are easy to occur due to manual counting of the number of rotation turns of the hand pump, and the output flow rate of the bidirectional hand pump can be obtained under the condition that the manual shaking of the bidirectional hand pump is detected.
Disclosure of Invention
The purpose of the invention is as follows: the utility model provides a check out test set and detection method for two-way hand pump to solve the above-mentioned problem that prior art exists.
The technical scheme is as follows: a detection apparatus for a bidirectional hand pump comprising: two-way hand pump, the two-way speed control system who is connected with the input rotation of two-way hand pump, two-way speed control system includes: the speed reducer is rotationally connected with the bidirectional hand pump, the speed regulating motor is rotationally connected with the input end of the speed reducer, and the encoder is electrically connected with the speed regulating motor;
hydraulic system with the hydraulic fluid port intercommunication of two-way hand pump, hydraulic system includes: the hydraulic control system comprises a bidirectional hand-operated pump, an overflow valve, a measuring cup, an oil tank and a pressure gauge, wherein the bidirectional hand-operated pump is communicated with an oil port A and an oil port B of the bidirectional hand-operated pump simultaneously and is provided with a direction control group with two oil outlets connected in parallel;
and the electrical control cabinet is connected with hydraulic system and two-way speed control system electricity, the electrical control cabinet includes: the device comprises a speed regulating motor controller electrically connected with a speed regulating motor, a PLC controller electrically connected with the speed regulating motor controller, the speed regulating motor, an encoder and an overflow valve, and a display instrument electrically connected with the PLC controller.
In a further embodiment, the handle of the bidirectional hand pump is dismantled, the output end of the speed reducer is rotatably connected with the input shaft of the bidirectional hand pump through the coupler, so that the situation that counting is inaccurate due to manual detection is avoided, the speed regulating motor and the speed reducer are used for replacing a manual driving bidirectional hand pump, the speed regulating motor is regulated to simulate the situation of manual work, and then counting is performed through the encoder electrically connected with the speed regulating motor, so that the detection result is more accurate.
Two-way hand pump is installed on the mounting panel, and open in the four corners of mounting panel has the through-hole, wherein, the through-hole cooperatees with the mounting platform of speed reducer, installs two-way hand pump and can install the two-way hand pump of different models on check out test set on the mounting panel with the mounting platform matched with of speed reducer.
The two-way hand pump communicates with each other with the direction control group through quick-operation joint and hose, wherein, quick-operation joint includes: with quick-operation joint articulated joint clamp plate, with joint clamp plate articulated pull ring subassembly to and simultaneously with quick-operation joint and joint clamp plate articulated auto-lock subassembly, wherein, quick-operation joint's one end and the hydraulic fluid port spiro union of two-way hand pump, quick-operation joint's the other end cup joints in the hose, and the hose cup joints in the pull ring subassembly, and wherein, quick-operation joint is hollow round platform form with the one end that the hose cup jointed, can accomplish through quick-operation joint behind the two-way hand pump of changing different models, carries out test with the quick intercommunication of two-way hand pump and direction control group.
In a further embodiment, the direction control group comprises: the oil inlet of the P1 is communicated with the oil outlet A of the bidirectional hand-operated pump, the P2 is communicated with the oil outlet B of the bidirectional hand-operated pump, and the P3 is communicated with the oil outlet B1 of the first ball valve and the oil outlet A2 of the second ball valve at the same time, wherein the oil outlet A3 of the third ball valve is communicated with the oil inlet P of the overflow valve; wherein, the first ball valve and the second ball valve are connected in parallel between the third ball valve and the bidirectional hand pump.
The inlet and outlet directions of the hydraulic oil of the bidirectional hand-operated pump and the final position where the hydraulic oil reaches are changed through the ball valve, so that the effect that the bidirectional hand-operated pump can provide flow and pressure under different working conditions is achieved, and the purpose of detection can be achieved under the condition that the production cost is saved.
In a further embodiment, first ball valve, second ball valve and third ball valve are the tee bend ball valve, the top of first ball valve, second ball valve and third ball valve all is equipped with the switching-over spanner, thereby changes fluid circulation direction through changing the ball valve direction according to the spanner in proper order, reaches the purpose that detects the service behavior of the two-way hand pump of different operating modes.
In a further embodiment, the direction control group comprises: the first reversing valve and the second reversing valve are respectively communicated with an oil port of the hand pump and an oil tank, and the third reversing valve is communicated with an overflow valve and a measuring cup; an oil port communicated with the hand pump in the normal station of the first reversing valve is communicated with a through-position oil port, and an oil port communicated with the hand pump in the reversing station is communicated with a through hole; an oil port communicated with the hand pump in the normal station of the second reversing valve is communicated with an oil port leading to an oil tank, and an oil port communicated with the hand pump in the reversing station; a through-position oil port in the normal station of the third reversing valve is communicated with the measuring cup, and a through-position oil port in the reversing station is communicated with the overflow valve; wherein, the first reversing valve and the second reversing valve are connected in parallel between the third reversing valve and the bidirectional hand pump.
The direction of the inlet and outlet of the hydraulic oil of the bidirectional hand-operated pump and the position where the final hydraulic oil reaches are changed through the reversing valve, so that the effect that the bidirectional hand-operated pump can provide flow and pressure under different working conditions is achieved.
In a further embodiment, first switching-over valve, second switching-over valve and third switching-over valve are two-position three way electromagnetic directional valve, wherein, first switching-over valve, second switching-over valve and third switching-over valve all are connected with the PLC controller electricity, and the position that the business turn over direction and the final hydraulic oil that changes the hydraulic oil of two-way hand pump reach through the automatic control switching-over valve of PLC controller to reach and detect under the different operating modes two-way hand pump and can provide flow and pressure effect, can improve the degree of automation of testing process, reduce the fault rate that manual operation brought.
In a further embodiment, the hydraulic system further comprises: the pressure sensor is connected with the manometer electricity to and install the weighing sensor in graduated flask below, wherein, pressure sensor and weighing sensor still are connected with the PLC controller electricity, and through the degree of automation of the electricity of pressure sensor and weighing sensor and PLC controller improve equipment, can reduce the error rate that manual operation brought.
In a further embodiment, the appliance control cabinet further comprises: the display screen that is connected with the PLC controller electricity to and install in the below of display screen, and the control button who is connected with the PLC controller electricity, can make the more audio-visual operating condition and the equipment of observing equipment of staff to the testing result of two-way hand pump through the display screen.
A detection method of a detection device for a bidirectional hand pump comprises the following steps: firstly, adjusting a direction control group to enable an oil port A of a bidirectional hand-operated pump to be communicated with a measuring cup and an oil port B of the bidirectional hand-operated pump to be communicated with an oil tank;
secondly, starting a speed regulating motor, enabling the speed regulating motor to rotate clockwise, regulating the rotating speed of the speed regulating motor through a control button, simulating the working state when the bidirectional hand pump is shaken manually, automatically closing the speed regulating motor after the speed regulating motor works for a preset time, and displaying the flow test result of instrument display equipment and the working state information of the display equipment on a display screen;
thirdly, the speed regulating motor is closed, then the direction control group is regulated to enable the oil port A of the bidirectional hand pump to be communicated with the overflow valve, and the oil port B of the bidirectional hand pump is communicated with the oil tank;
fourthly, starting the speed regulating motor to enable the speed regulating motor to rotate clockwise, regulating the rotating speed of the speed regulating motor and the set pressure of the overflow valve through a control button, simulating the working state when the bidirectional hand-operated pump is shaken manually, automatically closing the speed regulating motor after the speed regulating motor works for a preset time, and displaying the pressure test result of instrument display equipment and the working state information of the display equipment on a display screen;
and fifthly, closing the speed regulating motor, adjusting the direction control group to enable the connection directions of the bidirectional hand pump, the measuring cup, the overflow valve and the oil tank to be opposite, and then gradually testing the flow test and pressure test results of the bidirectional hand pump when the speed regulating motor rotates anticlockwise according to the steps.
Has the advantages that: the invention discloses a detection device and a detection method for a bidirectional hand pump, which achieve the effect of simulating manual operation of the bidirectional hand pump through a speed regulating motor, improve the automation degree, reduce the probability of manual operation errors, achieve the counting effect through an encoder, avoid the number of rotation turns of the bidirectional hand pump with wrong manual operation numbers, simulate different working conditions of the bidirectional hand pump in the actual use process through a hydraulic system, detect the output flow and pressure of the bidirectional hand pump in different working conditions through a measuring cup and a pressure gauge, visually display the use condition and the detection result of the device to a worker through an electric appliance control cabinet, and perform statistical analysis on the detection data by the worker to achieve the effect of detecting the output flow and pressure of the bidirectional hand pump.
Drawings
Fig. 1 is a block diagram of the operation of a first embodiment of the present invention.
Fig. 2 is a further operational block diagram of the first embodiment of the present invention.
Fig. 3 is a hydraulic schematic of a second embodiment of the present invention.
Fig. 4 is a schematic view of the assembled structure of the present invention.
Fig. 5 is a schematic view of the quick connector of the present invention.
Fig. 6 is a schematic view of the working principle of the quick coupling of the present invention.
Fig. 7 is a schematic view of the assembly of the bi-directional hand pump of the present invention with a mounting plate.
The reference numerals shown in fig. 1 to 7 are: the bidirectional hand pump comprises a bidirectional hand pump 1, a bidirectional speed regulating system 2, a hydraulic system 3, an electrical control cabinet 4, a mounting plate 11, a quick connector 12, a connector pressing plate 121, a pull ring assembly 122, a self-locking assembly 123, a hose 124, a speed reducer 21, a speed regulating motor 22, an encoder 23, a direction control group 31, an overflow valve 32, a measuring cup 33, an oil tank 34, a weighing sensor 35, a pressure gauge 36, a pressure sensor 37, a first ball valve 3101, a second ball valve 3102, a third ball valve 3103, a first reversing valve 3111, a second reversing valve 3112 and a third reversing valve 3113.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.
Through research and analysis of the applicant, the reason that the common flowmeter cannot accurately measure the bidirectional hand-operated pump is that the rotating speed cannot be kept constant due to manual shaking of the bidirectional hand-operated pump, the output flow rate of the bidirectional hand-operated pump is very low (less than 0.5L/min), and the problem cannot be avoided when people operate the bidirectional hand-operated pump, therefore, the flow of the bidirectional hand pump can not be detected by the common flowmeter, so the invention adopts the method of calculating the average output flow of the bidirectional hand pump by the total output flow to detect the flow of the bidirectional hand pump, therefore, the invention uses the speed regulating motor to simulate the manual shaking bidirectional hand pump, simulates different working conditions of the bidirectional hand pump in the actual use process through the hydraulic system, the flow and the pressure output by the bidirectional hand-operated pump when working under different working conditions are detected by the measuring cup and the pressure gauge, and the service condition and the detection result of the equipment are visually displayed to the staff through the electric appliance control cabinet.
A detection apparatus for a bidirectional hand pump comprising: the bidirectional hand pump comprises a bidirectional hand pump 1, a bidirectional speed regulating system 2, a hydraulic system 3, an electrical control cabinet 4, a mounting plate 11, a quick connector 12, a connector pressing plate 121, a pull ring assembly 122, a self-locking assembly 123, a hose 124, a speed reducer 21, a speed regulating motor 22, an encoder 23, a direction control group 31, an overflow valve 32, a measuring cup 33, an oil tank 34, a weighing sensor 35, a pressure gauge 36, a pressure sensor 37, a first ball valve 3101, a second ball valve 3102, a third ball valve 3103, a first reversing valve 3111, a second reversing valve 3112 and a third reversing valve 3113.
The bidirectional speed regulating system 2 is composed of a speed reducer 21, a speed regulating motor 22 and an encoder 23, wherein the speed regulating motor 22 is used as a power source and is in rotating connection with the input end of the speed reducer 21, the encoder 23 is electrically connected with the speed regulating motor 22 and records the number of rotation turns of the speed regulating motor 22, and manufacturers of the speed regulating motor 22, the speed reducer 21 and the encoder 23 are in matched production and have the model of MT3IK15 GN-A-3-K.
The hydraulic system 3 is composed of a direction control group 31, an oil tank 34, a measuring cup 33, an overflow valve 32 and a pressure gauge 36, wherein the bidirectional hand-operated pump 1 is respectively communicated with the overflow valve 32, the measuring cup 33, the oil tank 34 and the pressure gauge 36 through the direction control group 31, the oil tank 34 serving as an oil storage container provides oil for the bidirectional hand-operated pump 1 through the direction control group 31, the overflow valve 32 serving as a pressure detection element of the bidirectional hand-operated pump 1 is connected in series with one oil outlet of the direction control group 31, the pressure gauge 36 is connected in parallel between the overflow valve 32 and the direction control group 31, the measuring cup 33 serving as a flow detection element of the bidirectional hand-operated pump 1 is placed below the two oil outlets of the direction control group 31, so that the oil can flow into the measuring cup 33 after coming out of the direction control group 31, wherein the type of the bidirectional.
The electrical apparatus switch board 4 is by the buncher controller, PLC controller and display instrument constitute, wherein, the PLC controller respectively with the buncher controller, buncher 22, encoder 23, overflow valve 32 and display instrument electricity are connected, wherein, the PLC controller passes through the operating mode of motor controller control buncher 22, encoder 23 detects the number of revolutions of buncher 22 and with data transmission to the PLC controller, the PLC controller adjusts the effect that overflow valve 32 reaches the different loads of simulation two-way hand pump 1, the display instrument shows the staff with the testing result of two-way hand pump 1.
The assembling process comprises the following steps: firstly, the handle of the bidirectional hand pump 1 is removed, the output end of the speed reducer 21 is rotatably connected with the input shaft of the bidirectional hand pump 1 through the coupler, then the output end of the speed regulating motor 22 is rotatably connected with the input end of the speed reducer 21, and the encoder 23 and the speed regulating motor 22 are assembled to complete the bidirectional speed regulating system 2.
Then, the direction control group 31 is communicated with the oil port A and the oil port B of the bidirectional hand pump 1, the oil inlet P of the overflow valve 32 is connected with one oil outlet of the direction control group 31 in series, then the pressure gauge 36 is connected between the direction control group 31 and the oil inlet P of the overflow valve 32 in parallel, and then the measuring cup 33 is placed below the other oil outlet of the direction control group 31 and the oil outlet T of the overflow valve 32, so that oil can finally flow into the measuring cup 33, and the assembly of the hydraulic system 3 is completed.
And then the PLC controller of the electrical control cabinet 4 is electrically connected with the speed regulating motor controller, the speed regulating motor 22, the encoder 23 and the overflow valve 32, so that the assembly of the detection equipment for the bidirectional hand pump is completed.
The working principle is as follows: firstly, the direction control group 31 is adjusted to enable the oil port A of the bidirectional hand pump 1 to be communicated with the measuring cup 33, and the oil port B of the bidirectional hand pump 1 to be communicated with the oil tank 34. And then starting the speed regulating motor 22 to enable the speed regulating motor 22 to rotate clockwise, regulating the rotating speed of the speed regulating motor 22 through a control button, simulating the working state when the bidirectional hand pump 1 is shaken manually, automatically closing the speed regulating motor 22 after the speed regulating motor 22 works for a preset time, and displaying the flow test result of the instrument display equipment at the moment. Then the speed regulating motor 22 is turned off, and then the direction control group 31 is adjusted to enable the oil port A of the bidirectional hand pump 1 to be communicated with the overflow valve 32, and the oil port B of the bidirectional hand pump 1 to be communicated with the oil tank 34. And then starting the speed regulating motor 22 to enable the speed regulating motor 22 to rotate clockwise, regulating the rotating speed of the speed regulating motor 22 and the set pressure of the overflow valve 32 through a control button, simulating the working state when the bidirectional hand pump 1 is shaken manually, automatically closing the speed regulating motor 22 after the speed regulating motor 22 works for preset time, and displaying the pressure test result of the instrument display equipment at the moment. And finally, the speed regulating motor 22 is closed, the direction control group 31 is adjusted, the connection directions of the bidirectional hand-operated pump 1, the measuring cup 33, the overflow valve 32 and the oil tank 34 are opposite, and then the flow test and pressure test results of the bidirectional hand-operated pump 1 are gradually tested when the speed regulating motor 22 rotates anticlockwise according to the steps from the first step to the fourth step.
Wherein, whole working process is accomplished gradually, only changes a variable when detecting a operating mode in the in-process of detecting two-way hand pump 1, and the strict control variable data avoids detecting the data confusion.
In a further embodiment, in order to rapidly replace the two-way hand pump 1 with different models, the two-way hand pump 1 with different models is subjected to a detection test, so the two-way hand pump 1 is installed on the installation plate 11 matched with the installation platform of the speed reducer 21, and the two-way hand pump 1 is communicated with the direction control group 31 through the quick connector 12 and the hose 124, wherein the installation plate 11 is larger than the two-way hand pump 1 when the installation plate 11 is manufactured, a threaded hole is matched according to the installation hole of the two-way hand pump, then the two-way hand pump 1 is fixed on the installation plate 11 through screws, through holes matched with the installation platform are further opened at four corners of the installation plate 11, and the installation plate 11 is fixed on the installation platform through the through holes through screws.
Wherein the quick coupling 12 comprises: a joint pressure plate 121 hinged with the quick joint 12, a pull ring component 122 hinged with the joint pressure plate 121, and a self-locking component 123 hinged with the quick joint 12 and the joint pressure plate 121 simultaneously, wherein one end of the quick joint 121 is screwed with an oil port of the bidirectional hand pump 1, the other end of the quick joint 121 is sleeved in the hose 124, the hose 124 is sleeved in the pull ring component 122, one end of the quick joint 121 sleeved with the hose 124 is in a hollow round table shape, when in use, one end of the quick joint 121 is firstly screwed with the oil port of the bidirectional hand pump 1, then the other end of the quick joint 121 is sleeved in the hose 124, the hose 124 is sleeved in the pull ring component, then the joint pressure plate 121 is pressed to move the pull ring component 122 towards the quick joint 12, so that a gap between the pull ring component 122 and the quick joint 12 is smaller and smaller, the effect of clamping the hose 124 is achieved, and the sealing purpose is achieved through elastic deformation of the hose 124, eventually the self-locking assembly 123 reaches a dead point sealing the interface.
In a further embodiment, in order to display the measurement result more accurately, improve the automation degree of the equipment, and reduce the error rate caused by manual operation, the hydraulic system 3 further comprises: a pressure sensor 37 electrically connected with the pressure gauge 36, and a weighing sensor 35 installed below the measuring cup 33, wherein the pressure sensor 37 is also electrically connected with the PLC controller, and the weighing sensor 35 is also electrically connected with the PLC controller.
In a further embodiment, in order to make the staff more intuitively observe the working condition of the device and the detection result of the device on the bidirectional hand pump 1, the electrical control cabinet 4 further comprises: the PLC comprises a display screen electrically connected with the PLC and a control button which is arranged below the display screen and electrically connected with the PLC.
In the use process, the display screen can display the working state of the equipment and the detection result of the flow and the pressure of the bidirectional hand pump 1.
In the first embodiment shown in fig. 1 to 2, in order to reduce the production cost of the device and reduce the skill requirement for using the device, the direction control valve is composed of a first ball valve 3101, a second ball valve 3102 and a third ball valve 3103, wherein the first ball valve 3101, the second ball valve 3102 and the third ball valve 3103 are all three-way ball valves, and reversing wrenches are arranged above the first ball valve 3101, the second ball valve 3102 and the third ball valve 3103.
Wherein, the P1 oil inlet of the first ball valve 3101 is communicated with the A oil outlet of the bidirectional hand pump 1, the P2 oil inlet of the second ball valve 3102 is communicated with the B oil outlet of the bidirectional hand pump 1, and the P3 oil inlet of the third ball valve 3103 is simultaneously communicated with the B1 oil outlet of the first ball valve 3101 and the A2 oil outlet of the second ball valve 3102, wherein the A3 oil outlet of the third ball valve 3103 is communicated with the P oil inlet of the overflow valve 32, and the first ball valve 3101 and the second ball valve 3102 are connected in parallel between the third ball valve 3103 and the bidirectional hand pump 1.
When the bidirectional hand pump is used, if the flow output condition of the bidirectional hand pump 1 when the speed regulating motor 22 rotates clockwise needs to be tested, namely, the oil port a of the bidirectional hand pump 1 is communicated with the measuring cup 33, and the oil port B of the bidirectional hand pump 1 is communicated with the oil tank 34, the reversing wrench of the first ball valve 3101 is wrenched to disconnect the oil port a1 of the first ball valve 3101 from the oil port P1, the oil port B1 is communicated with the oil port P1, the reversing wrench of the second ball valve 3102 is wrenched to disconnect the oil port a2 of the second ball valve 3102 from the oil port P2, the oil port B2 is communicated with the oil port P2, the reversing wrench of the third ball valve 3103 is wrenched to disconnect the oil port A3 of the third ball valve 3103 from the oil port P3, and the oil port B3.
If the flow output condition of the bidirectional hand pump 1 when the speed regulating motor 22 rotates counterclockwise needs to be tested, namely, the oil port B of the bidirectional hand pump 1 is communicated with the measuring cup 33, and the oil port a of the bidirectional hand pump 1 is communicated with the oil tank 34, the reversing wrench of the first ball valve 3101 is wrenched to communicate the oil port a1 of the first ball valve 3101 with the oil port P1, the oil port B1 is disconnected with the oil port P1, the reversing wrench of the second ball valve 3102 is wrenched to communicate the oil port a2 of the second ball valve 3102 with the oil port P2, the oil port B2 is disconnected with the oil port P2, the reversing wrench of the third ball valve 3103 is wrenched to disconnect the oil port A3 of the third ball valve 3103 from the oil port P3, and the oil port B3 is communicated with the.
If the pressure output of the bidirectional hand pump 1 is required on the basis of the above, the reversing wrench of the third ball valve 3103 is wrenched to connect the oil port a3 of the third ball valve 3103 with the oil port P3, and disconnect the oil port B3 from the oil port P3.
In the second embodiment shown in fig. 3, in order to improve the automation degree of the detection process and reduce the error rate caused by manual operation, the direction control group 31 includes: the control system comprises a first reversing valve 3111, a second reversing valve 3112 and a third reversing valve 3113, wherein the first reversing valve 3111, the second reversing valve 3112 and the third reversing valve 3113 are two-position three-way electromagnetic reversing valves, and the first reversing valve 3111, the second reversing valve 3112 and the third reversing valve 3113 are all electrically connected with a PLC controller.
The two-way oil ports of the first reversing valve 3111 and the second reversing valve 3112 are respectively communicated with the oil port of the hand pump and the oil tank 34, the one-way oil port of the third reversing valve 3113 is simultaneously communicated with the one-way oil ports of the first reversing valve 3111 and the second reversing valve 3112, and the two-way oil port is respectively communicated with the overflow valve 32 and the measuring cup 33.
Wherein, the oil port that communicates with the hand pump in the normal station of first switching-over valve 3111 communicates with a position oil port that leads to, and the oil port that communicates with the hand pump in the switching-over station communicates with the oil tank.
An oil port communicating with the hand pump in the normal position of the second direction valve 3112 communicates with an oil port leading to the oil tank 34, and an oil port communicating with the hand pump in the direction change position.
A through-position oil port in the normal position of the third reversing valve 3113 is communicated with the measuring cup 33, and a through-position oil port in the reversing position is communicated with the overflow valve 32.
Wherein, first direction changing valve 3111 and second direction changing valve 3112 are connected in parallel between third direction changing valve 3113 and bidirectional hand pump 1.
In the using process, if the flow output condition of the bidirectional hand pump 1 when the speed regulating motor 22 rotates clockwise needs to be tested, namely the oil port a of the bidirectional hand pump 1 is communicated with the measuring cup 33, and the oil port B of the bidirectional hand pump 1 is communicated with the oil tank 34, the electromagnet Y1 of the first reversing valve 3111 is powered off, the electromagnet Y2 of the second reversing valve 3112 is powered off, and the electromagnet Y3 of the third reversing valve 3113 is powered off, namely the first reversing valve 3111, the second reversing valve 3112 and the third reversing valve 3113 are all in a normal working position state.
If the flow output condition of the bidirectional hand pump 1 when the speed regulating motor 22 rotates counterclockwise needs to be tested, namely, the oil port B of the bidirectional hand pump 1 is communicated with the measuring cup 33, and when the oil port a of the bidirectional hand pump 1 is communicated with the oil tank 34, the electromagnet Y1 of the first reversing valve 3111 is powered on, the electromagnet Y2 of the second reversing valve 3112 is powered on, and the electromagnet Y3 of the third reversing valve 3113 is powered off, namely, the first reversing valve 3111 and the second reversing valve 3112 are in reversing stations, and the third reversing valve 3113 is in a normal station state.
On the basis, if the pressure output condition of the bidirectional hand pump 1 is needed, the electromagnet Y1 of the first reversing valve 3111 is de-energized, the electromagnet Y2 of the second reversing valve 3112 is de-energized, and the electromagnet Y3 of the third reversing valve 3113 is energized, that is, the first reversing valve 3111 and the second reversing valve 3112 are in the normal working position, and the third reversing valve 3113 is in the reversing working position state. The first direction switching valve 3111 and the second direction switching valve 3112 are then turned in accordance with the turning direction of the governor motor 22.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the embodiments, and various equivalent changes can be made to the technical solution of the present invention within the technical idea of the present invention, and these equivalent changes are within the protection scope of the present invention.

Claims (6)

1. A check out test set for two-way hand pump, characterized by includes: two-way hand pump (1), two-way speed control system (2) of being connected with the input rotation of two-way hand pump (1), two-way speed control system (2) include: the device comprises a speed reducer (21) rotationally connected with the bidirectional hand pump (1), a speed regulating motor (22) rotationally connected with the input end of the speed reducer (21), and an encoder (23) electrically connected with the speed regulating motor (22);
hydraulic system (3) with the hydraulic fluid port intercommunication of two-way hand pump (1), hydraulic system (3) include: the oil pump comprises a direction control group (31) which is simultaneously communicated with an oil port A and an oil port B of the bidirectional hand-operated pump (1) and is provided with two oil outlets connected in parallel, an overflow valve (32) connected with one oil outlet of the direction control group (31) in series, a measuring cup (33) which is simultaneously communicated with the other oil outlet of the direction control group (31) and the oil outlet T of the overflow valve (32), an oil tank (34) communicated with the direction control group (31), and a pressure gauge (36) connected between the oil inlets P of the bidirectional hand-operated pump (1) and the overflow valve (32) in parallel;
and with hydraulic system (3) and two-way speed control system (2) electricity be connected electrical apparatus switch board (4), electrical apparatus switch board (4) include: the device comprises a speed regulating motor controller electrically connected with a speed regulating motor (22), a PLC (programmable logic controller) electrically connected with the speed regulating motor controller, the speed regulating motor (22), an encoder (23) and an overflow valve (32), and a display instrument electrically connected with the PLC;
one end of the overflow valve (32) is provided with a P oil inlet which is communicated with one oil outlet of the direction control group (31);
the direction control group (31) comprises: the hydraulic cylinder comprises a first ball valve (3101) communicated with a bidirectional hand pump (1), a second ball valve (3102) communicated with the bidirectional hand pump (1), and a third ball valve (3103) communicated with the first ball valve (3101) and the second ball valve (3102) at the same time, wherein a P1 oil inlet of the first ball valve (3101) is communicated with an A oil outlet of the bidirectional hand pump (1), a P2 oil inlet of the second ball valve (3102) is communicated with a B oil outlet of the bidirectional hand pump (1), and a P3 oil inlet of the third ball valve (3103) is communicated with a B1 oil outlet of the first ball valve (3101) and an A2 oil outlet of the second ball valve (3102) at the same time;
wherein, the first ball valve (3101) and the second ball valve (3102) are connected in parallel between the third ball valve (3103) and the bidirectional hand pump (1);
or the direction control group (31) comprises: the oil pump comprises a first reversing valve (3111) and a second reversing valve (3112), one ends of which are respectively communicated with an oil port of the hand pump and an oil tank (34), and a third reversing valve (3113), one ends of which are simultaneously communicated with the first reversing valve (3111) and the second reversing valve (3112), and the other ends of which are respectively communicated with an overflow valve (32) and a measuring cup (33), wherein the first reversing valve (3111) and the second reversing valve (3112) comprise two-way oil ports which are communicated with the oil port of the hand pump and the oil tank (34), and the third reversing valve (3113) comprises one-way oil port which is simultaneously communicated with the one-way oil ports of the first reversing valve (3111) and the second reversing valve (3112), and two-way oil ports which are respectively communicated with the overflow valve (32) and the measuring cup (33);
an oil port communicated with the hand pump in a normal station of the first reversing valve (3111) is communicated with a through-position oil port, and an oil port communicated with the hand pump in a reversing station is communicated with an oil tank;
an oil port communicated with the hand pump in a normal station of the second reversing valve (3112) is communicated with an oil port communicated with an oil tank (34), and an oil port communicated with the hand pump in a reversing station is communicated with a through-position oil port;
a through position oil port in a normal working position of the third reversing valve (3113) is communicated with the measuring cup (33), and a through position oil port in a reversing working position is communicated with the overflow valve (32);
wherein the first direction valve (3111) and the second direction valve (3112) are connected in parallel between the third direction valve (3113) and the bidirectional hand pump (1).
2. The test device for a bi-directional hand pump of claim 1, wherein: the first ball valve (3101), the second ball valve (3102) and the third ball valve (3103) are all three-way ball valves, and reversing wrenches are arranged above the first ball valve (3101), the second ball valve (3102) and the third ball valve (3103).
3. The test device for a bi-directional hand pump of claim 1, wherein: the first reversing valve (3111), the second reversing valve (3112) and the third reversing valve (3113) are two-position three-way electromagnetic reversing valves, wherein the first reversing valve (3111), the second reversing valve (3112) and the third reversing valve (3113) are all electrically connected with the PLC.
4. The test device for a bi-directional hand pump of claim 1, wherein: the hydraulic system (3) further comprises: the pressure sensor (37) is electrically connected with the pressure gauge (36), and the weighing sensor (35) is installed below the measuring cup (33), wherein the pressure sensor (37) and the weighing sensor (35) are also electrically connected with the PLC.
5. The test device for a bi-directional hand pump of claim 1, wherein: the electric appliance control cabinet (4) further comprises: the display screen is electrically connected with the PLC controller, and the control button is installed below the display screen and is electrically connected with the PLC controller.
6. The method of detecting a device for detecting a bidirectional hand pump as set forth in any of claims 1 to 5, comprising: firstly, adjusting a direction control group (31) to enable an oil port A of a bidirectional hand-operated pump (1) to be communicated with a measuring cup (33), and an oil port B of the bidirectional hand-operated pump (1) to be communicated with an oil tank (34);
secondly, starting the speed regulating motor (22), enabling the speed regulating motor (22) to rotate clockwise, regulating the rotating speed of the speed regulating motor (22) through a control button, simulating the working state when the bidirectional hand pump (1) is shaken manually, automatically closing the speed regulating motor (22) after the speed regulating motor works for a preset time, and displaying the flow test result of instrument display equipment and the working state information of the equipment on a display screen;
thirdly, the speed regulating motor (22) is closed, then the direction control group (31) is adjusted to enable the oil port A of the bidirectional hand pump (1) to be communicated with the overflow valve (32), and the oil port B of the bidirectional hand pump (1) is communicated with the oil tank (34);
fourthly, starting the speed regulating motor (22), enabling the speed regulating motor (22) to rotate clockwise, regulating the rotating speed of the speed regulating motor (22) and the set pressure of the overflow valve (32) through a control button, simulating the working state when the bidirectional hand pump (1) is shaken manually, automatically closing the speed regulating motor (22) after the speed regulating motor works for preset time, and displaying the pressure test result of instrument display equipment and the working state information of the display equipment on a display screen;
and fifthly, closing the speed regulating motor (22), adjusting the direction control group (31) to enable the connection directions of the bidirectional hand-operated pump (1), the measuring cup (33), the overflow valve (32) and the oil tank (34) to be opposite, and then gradually testing the flow test and pressure test results of the bidirectional hand-operated pump (1) when the speed regulating motor (22) rotates anticlockwise according to the steps from the first step to the fourth step.
CN201910628725.8A 2019-07-12 2019-07-12 Detection equipment and detection method for bidirectional hand-operated pump Active CN110345059B (en)

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CN201910628725.8A CN110345059B (en) 2019-07-12 2019-07-12 Detection equipment and detection method for bidirectional hand-operated pump

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Application Number Priority Date Filing Date Title
CN201910628725.8A CN110345059B (en) 2019-07-12 2019-07-12 Detection equipment and detection method for bidirectional hand-operated pump

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CN110345059B true CN110345059B (en) 2020-08-18

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU646089A1 (en) * 1977-11-21 1979-02-05 Одесский Завод "Стройгидравлика Pump testing stand
CN2427705Y (en) * 2000-06-08 2001-04-25 笠源精密工业股份有限公司 Pipe joint hinged pin with pulling ring connecting device
CN203869960U (en) * 2014-04-25 2014-10-08 安徽远东重型机械有限公司 Pipe fitting quick pressure-testing device

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