CN213600355U

CN213600355U - Device for dynamically testing engine oil cylinder

Info

Publication number: CN213600355U
Application number: CN202022897887.2U
Authority: CN
Inventors: 彭旭东; 艾留刚
Original assignee: Hubei Weiyue Intelligent Technology Co ltd
Current assignee: Hubei Weiyue Intelligent Technology Co ltd
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2021-07-02
Anticipated expiration: 2030-12-04

Abstract

The utility model discloses a device for engine oil cylinder dynamic test relates to engine testing arrangement, has solved the testboard and has adopted the technical problem that special acquisition integrated circuit board professional skill required height, later stage upgrading maintenance cycle length. The device comprises a test board, an industrial personal computer, a PLC controller and a lifting driving assembly; the test board is provided with an oil cylinder, a main guide post is movably inserted in an inner cavity of the oil cylinder, a driving end of the lifting driving assembly is connected with the main guide post, and the lifting driving assembly is electrically connected with an output end of the PLC; and a port of the oil cylinder is provided with a pressure sensor, and a counter is arranged above the oil cylinder. The utility model discloses need not to adopt special collection integrated circuit board to gather test data, avoided leading to its cycle overlength, influencing the problem of production because of upgrading or maintaining the collection integrated circuit board.

Description

Device for dynamically testing engine oil cylinder

Technical Field

The utility model relates to an engine testing arrangement, more specifically say, it relates to a device for engine cylinder dynamic test.

Background

When the dynamic test is carried out on the engine oil cylinder, the oil cylinder needs to be simulated under the running condition state of the whole vehicle. Generally, the oil cylinder is placed on a test bench, and then parameters such as different frequencies, strokes, reciprocating times and the like are set to drive the tested oil cylinder to carry out follow-up test. The existing dynamic testing device collects various parameters of the oil cylinder in the testing process through a special collecting board card. However, the special acquisition board card has the problems of high requirement on professional skills and high development difficulty. In addition, the upgrading and maintenance of the special acquisition board card are guided by technicians of manufacturers, so that the upgrading and maintenance period of the board card is long, and the production test is not facilitated.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is not enough to prior art, a device for engine cylinder dynamic test is provided, solved the testboard and adopted the special acquisition integrated circuit board professional skill to require the problem high, later stage upgrading maintenance cycle length.

The technical scheme of the utility model lies in: a device for dynamically testing an engine oil cylinder comprises a test board, an industrial personal computer, a PLC (programmable logic controller) and a lifting driving assembly; the test board is provided with an oil cylinder, a main guide post is movably inserted in an inner cavity of the oil cylinder, a driving end of the lifting driving assembly is connected with the main guide post, and the lifting driving assembly is electrically connected with an output end of the PLC; a pressure sensor is installed at the port of the oil cylinder, and a counter is arranged above the oil cylinder; install the head tree on the testboard, the head tree is located the top of hydro-cylinder, install the tensiometer on the head tree, the tensiometer is connected with the hydro-cylinder, tensiometer, pressure sensor and counter all with the input electric connection of PLC controller, PLC controller and industrial computer electric connection.

In a further improvement, the lifting driving component comprises a driving motor and a cam; the driving motor is installed on the test bench, the cam is installed at the driving end of the driving motor, and the cam is in contact connection with the main guide column.

Furthermore, the counter can be arranged above the oil cylinder in a back-and-forth movement mode through the supporting assembly.

Further, the support assembly comprises a support rod, an outer tube and an inner tube; the support rod is fixedly arranged on the test board, the outer pipe is fixedly connected with the support rod, the inner pipe is movably inserted into the outer pipe, the counter is arranged at the tail end of the inner pipe, a puller bolt is screwed above the outer pipe, and the puller bolt penetrates through the outer pipe and contacts with the outer wall of the inner pipe.

Furthermore, a positioning bulge is arranged in the outer pipe, a first positioning groove is arranged on the side wall of the inner pipe, and the positioning bulge is movably inserted in the first positioning groove; and a second positioning groove is also formed in the side wall of the inner tube, and the tightening bolt is inserted into the second positioning groove.

Further, the counter is a photoelectric counting sensor.

Advantageous effects

The utility model has the advantages that: the device formed by the PLC, the pressure sensor, the counter, the tension meter and the industrial personal computer is used for collecting various parameters of the oil cylinder during testing on the test board, so that the oil cylinder is tested without adopting a special collecting board card to collect test data. Compared with a special acquisition board card, the PLC controller is low in development difficulty and does not require high professional skills, so that technicians can upgrade or maintain the PLC controller by themselves, and the problems that the period is too long and production is affected due to upgrading or maintaining of the acquisition board card are solved.

Drawings

Fig. 1 is a left side schematic view of the present invention;

FIG. 2 is a schematic front side view of the present invention;

FIG. 3 is a schematic cross-sectional view of the connection structure of the inner and outer tubes of the present invention;

fig. 4 is a block diagram of the electrical part structure of the present invention.

Wherein: 1-a test bench, 2-an oil cylinder, 3-a main guide post, 4-a counter, 5-a main upright post, 6-a tension meter, 7-a driving motor, 8-a cam, 9-a support rod, 10-an outer pipe, 11-an inner pipe, 12-a puller bolt, 13-a positioning bulge and 14-a second positioning groove.

Detailed Description

The present invention will be further described with reference to the following examples, which are not intended to limit the scope of the present invention, but are intended to be covered by the appended claims in any way.

Referring to fig. 1-4, the utility model discloses a device for engine cylinder dynamic test, including testboard 1, PLC controller, lift drive assembly and industrial computer. The PLC controller is electrically connected with the industrial personal computer to transmit the acquired data to the industrial personal computer. The test data of the oil cylinder 2 can be visually observed through the industrial personal computer, and the data can be conveniently analyzed and traced. The PLC controller is a Siemens 200 series PLC controller, the cost performance is high, the data acquisition and communication capacity is high, a special acquisition board card is not needed, and the problems that the period is too long and the production is influenced due to upgrading or maintaining of the acquisition board card are solved. An oil cylinder 2 is installed on the test board 1, a main guide pillar 3 is movably inserted into an inner cavity of the oil cylinder 2, a driving end of a lifting driving assembly is connected with the main guide pillar 3, and the lifting driving assembly is electrically connected with an output end of the PLC. Specifically, the lifting drive assembly includes a drive motor 7 and a cam 8. Driving motor 7 installs on testboard 1, and cam 8 installs the drive end at driving motor 7, and cam 8 is connected with main guide pillar 3 contact, and driving motor 7 passes through converter and PLC controller electric connection. After the driving motor 7 is started, the cam 8 is driven to do circular motion, and the circular motion of the cam 8 drives the main guide pillar 3 to do vertical linear reciprocating motion, so that the working state of the oil cylinder 2 when the whole vehicle runs is simulated, and a test basis is provided for a vertical follow-up test of the oil cylinder 2. In addition, the frequency of the up-and-down follow-up test can be set according to the preset frequency corresponding to the model of the tested oil cylinder 2. The specific operation is that after the preset frequency is set in the industrial personal computer, the PLC controls the driving motor 7 through the frequency converter according to the preset frequency to control, so that the running speed of the driving motor 7 is consistent with the preset frequency, and the adjustment of the reciprocating motion frequency of the main guide pillar 3 is realized.

And a port of the oil cylinder 2 is provided with a pressure sensor, and the pressure sensor is electrically connected with the input end of the PLC. The port of the cylinder 2 is divided into two ports, an upper port and a lower port, and therefore, the present embodiment has pressure sensors installed in both ports for checking the change of the internal pressure of the cylinder 2.

The counter 4 is arranged above the oil cylinder 2, and the counter 4 is electrically connected with the input end of the PLC controller. The counter 4 is used for counting the reciprocating up-and-down movement times of the oil cylinder 2. Preferably, the counter 4 is a photoelectric counting sensor. The counter 4 is arranged above the oil cylinder 2 in a manner of moving back and forth through a supporting component, so that the oil cylinder 2 can be conveniently assembled and disassembled. Because all need realize through the hoist when dismouting hydro-cylinder 2, and the counter 4 that is located the hydro-cylinder 2 top causes the inconvenience of hydro-cylinder 2 dismouting easily. In order to solve the problem, the counter 4 is arranged above the oil cylinder 2 in a back-and-forth movement mode, and the counter 4 is moved away from the oil cylinder 2 during assembly and disassembly; after the oil cylinder 2 is installed, the counter 4 is moved to the upper part of the oil cylinder 2, so that the problem that the counter 4 blocks the oil cylinder 2 when the oil cylinder 2 is assembled and disassembled is solved.

Specifically, the support assembly comprises a support rod 9, an outer tube 10 and an inner tube 11; the utility model discloses a counter, including test bench 1, bracing piece 9, outer tube 10, bracing piece 9, the grafting of inner tube 11 activity is in outer tube 10, and counter 4 installs at the end of inner tube 11, and the top of outer tube 10 has connect soon tight bolt 12 in top, and tight bolt 12 in top passes outer tube 10 and contacts with the outer wall of inner tube 11. When the counter 4 is moved, the puller bolt 12 is loosened, and the inner tube 11 is moved back and forth; when the counter 4 is fixed, the inner tube 11 is tightly pressed in the outer tube 10 by screwing the tightening bolt 12, and the operation is simple and convenient.

Preferably, the jacking bolts 12 are torx bolts.

Preferably, a positioning protrusion 13 is arranged in the outer tube 10, a first positioning groove is arranged on the side wall of the inner tube 11, and the positioning protrusion 13 is movably inserted into the first positioning groove. The inner tube 11 is positioned by the positioning bulge 13, so that the relative rotation between the inner tube 11 and the outer tube 10 is avoided, the stability of the counter 4 is improved, and the monitored data is more reliable and accurate. The side wall of the inner tube 11 is further provided with a second positioning groove 14, and the tightening bolt 12 is inserted into the second positioning groove 14 and used for further positioning the inner tube 11.

Install the head mast 5 on the testboard 1, head mast 5 is located the top of hydro-cylinder 2, installs tensiometer 6 on the head mast 5, and tensiometer 6 is connected with hydro-cylinder 2, and tensiometer 6 and PLC controller's input electric connection. Wherein, the tension meter 6 is an S-shaped tension meter and is used for measuring the tension applied to the oil cylinder 2 in the test process. Because friction exists between the main guide post 3 and the oil cylinder 2, when the main guide post 3 reciprocates, a tensile force is formed on the oil cylinder 2, and the tensile force of the oil cylinder 2 in the testing process is measured and monitored through the tension meter 6.

The utility model discloses a theory of operation is: the driving motor 7 is started, the driving motor 7 drives the cam 8 to do circular motion after being started, and the circular motion of the cam 8 drives the main guide pillar 3 to do vertical linear reciprocating motion. With pressure sensor, photoelectric counting sensor and tensiometer 6 as the collection end, collect each item data of hydro-cylinder 2 when experimental to gather these data through the PLC controller, the PLC controller is with data transmission to the industrial computer of gathering, shows the storage to these data by the industrial computer.

The above is only the preferred embodiment of the present invention, and it should be noted that for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which will not affect the utility model and the utility of the patent.

Claims

1. A device for dynamically testing an engine oil cylinder comprises a test board (1) and an industrial personal computer, and is characterized by further comprising a PLC (programmable logic controller) and a lifting driving assembly; an oil cylinder (2) is mounted on the test board (1), a main guide post (3) is movably inserted into an inner cavity of the oil cylinder (2), a driving end of the lifting driving assembly is connected with the main guide post (3), and the lifting driving assembly is electrically connected with an output end of the PLC; a port of the oil cylinder (2) is provided with a pressure sensor, and a counter (4) is arranged above the oil cylinder (2); install head mast (5) on testboard (1), head mast (5) are located the top of hydro-cylinder (2), install tensiometer (6) on head mast (5), tensiometer (6) are connected with hydro-cylinder (2), tensiometer (6), pressure sensor and counter (4) all with the input electric connection of PLC controller, PLC controller and industrial computer electric connection.

2. The device for the dynamic test of the engine oil cylinder is characterized in that the lifting driving component comprises a driving motor (7) and a cam (8); the driving motor (7) is installed on the test bench (1), the cam (8) is installed at the driving end of the driving motor (7), and the cam (8) is in contact connection with the main guide pillar (3).

3. The device for the dynamic test of the engine oil cylinder is characterized in that the counter (4) is movably arranged above the oil cylinder (2) in a back-and-forth mode through a supporting assembly.

4. The device for the dynamic test of the engine cylinder according to the claim 3, characterized in that, the supporting component comprises a supporting rod (9), an outer pipe (10) and an inner pipe (11); the device comprises a support rod (9), an outer pipe (10) and the support rod (9), wherein the support rod (9) is fixedly installed on a test bench (1), the inner pipe (11) is movably inserted into the outer pipe (10), a counter (4) is installed at the tail end of the inner pipe (11), a puller bolt (12) is screwed above the outer pipe (10), and the puller bolt (12) penetrates through the outer pipe (10) and is in contact with the outer wall of the inner pipe (11).

5. The device for dynamically testing the engine oil cylinder is characterized in that a positioning protrusion (13) is arranged in the outer pipe (10), a first positioning groove is formed in the side wall of the inner pipe (11), and the positioning protrusion (13) is movably inserted into the first positioning groove; the side wall of the inner pipe (11) is also provided with a second positioning groove (14), and the puller bolt (12) is inserted in the second positioning groove (14).

6. The device for the dynamic test of the engine cylinder according to any one of claims 1 to 5, characterized in that the counter (4) is a photoelectric counting sensor.