CN207263348U - A kind of direct drive type electrohydraulic SERVO CONTROL swivel joint moment of torsion device for testing rotating speed - Google Patents
A kind of direct drive type electrohydraulic SERVO CONTROL swivel joint moment of torsion device for testing rotating speed Download PDFInfo
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- CN207263348U CN207263348U CN201720588351.8U CN201720588351U CN207263348U CN 207263348 U CN207263348 U CN 207263348U CN 201720588351 U CN201720588351 U CN 201720588351U CN 207263348 U CN207263348 U CN 207263348U
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Abstract
A kind of direct drive type electrohydraulic SERVO CONTROL swivel joint moment of torsion device for testing rotating speed, belongs to engineer machinery test equipment.It mainly includes servomotor, bidirectional hydraulic pump, accumulator, the first overflow valve, the second overflow valve, the first check valve, the second check valve, two-way hydraulic motor, when servomotor rotating, drive bidirectional hydraulic pump rotating, change the flow direction of output fluid, drive two-way hydraulic motor to realize the forward or reverse of swivel joint；Moment of torsion detects the moment of torsion and tach signal of swivel joint with speed probe in real time, signal is delivered to host computer by acquisition control system processing, moment of torsion and rotary speed data are shown by host computer interface, and moment of torsion and rotation speed change curve, when in host computer interface input speed data, the rotating speed of controllable servomotor and steering, realize and the rotating speed of swivel joint are adjusted with turning to, rotational speed regulation scope is in 15~20r/min.The utility model reliability is high, small integrated, while energy conservation and environmental protection.
Description
Technical field
The utility model belongs to engineer machinery test equipment, and in particular to a kind of direct drive type electrohydraulic SERVO CONTROL swivel joint
Moment of torsion device for testing rotating speed.
Background technology
Direct drive type electrohydraulic SERVO CONTROL swivel joint moment of torsion device for testing rotating speed is a kind of swivel joint to be tested
Equipment, the detection of swivel joint need special testing equipment, and most enterprises domestic at present use simple device, are manually operated people
Work observing apparatus reading, hand filling detection data, it is impossible to detect the situation of each instantaneous torque, rotating speed, output test automatically
Report, it is difficult to ensure that the quality of product, influences the sales volume of product.Some enterprises realize swivel joint just using hydraulic drive
Reversion, carries out swivel joint rotational speed regulation by restricting element, can so cause system energy loss larger, cause system temperature rise
It is excessive, the normal operation of system is influenced, so swivel joint moment of torsion device for testing rotating speed is developed to carry out rotating speed torsion-testing,
It is the domestic problem for being badly in need of solving.
And this direct drive type electrohydraulic SERVO CONTROL swivel joint moment of torsion device for testing rotating speed, using new electro-hydraulic servo skill
Art, has the advantages that high reliability, energy conservation and environmental protection and small integrated, and servomotor rotating speed is carried out with turning to by host computer
Control, so as to adjust rotating speed and the steering of swivel joint, completes real-time collection and display to moment of torsion, tach signal.
The content of the invention
The purpose of this utility model, which is to provide one kind, can simulate swivel joint actual condition, and automatic detection swivel joint is each
The device of instantaneous torque and rotating speed, tests for swivel joint, product quality is evaluated.Work at the same time reliability height, section
Can environmental protection.
Direct drive type electrohydraulic SERVO CONTROL swivel joint moment of torsion device for testing rotating speed described in the utility model, it mainly includes watching
Take motor, bidirectional hydraulic pump, accumulator, the first overflow valve, the second overflow valve, the first check valve, the second check valve, oil path block,
Two-way hydraulic motor, moment of torsion and speed probe, host computer, acquisition control system, servo-driver, servomotor are located at oil circuit
On the left of block, it is connected by 4 outer-hexagonal bolts with oil path block, bidirectional hydraulic pump passes through screw and oil circuit on the right side of oil path block
Block connects, and the first check valve, the second check valve and bidirectional hydraulic pump are made of one, and servo motor output shaft pumps defeated with bidirectional hydraulic
Enter axis to connect by positive coupling, positive coupling is located inside oil path block, and the first overflow valve is located above oil path block, passes through
Screw is connected with oil path block, and the second overflow valve is located at before oil path block, is connected by screw with oil path block, and accumulator is located at oil circuit
Behind block, it is connected by pipe fitting with oil path block, pressure gauge is directly attached with oil path block by screw thread, is provided with oil path block
4 through holes, can realize that oil path block position is fixed by cartridge screw in hole.
Above-mentioned servomotor rotates forward, driving bidirectional hydraulic pump rotates forward, bidirectional hydraulic pump through the second check valve from
Accumulator oil suction, bidirectional hydraulic pump left end hydraulic fluid port discharge fluid enter two-way hydraulic motor left end hydraulic fluid port, two-way hydraulic motor band
The rotating shaft of dynamic swivel joint continuously rotates forward, and the fluid of two-way hydraulic motor right end hydraulic fluid port discharge is pumped into bidirectional hydraulic
Right end hydraulic fluid port, when hydraulic system is overloaded, the first overflow valve is opened, and fluid flows back to accumulator through the first overflow valve；Work as servomotor
Rotate backward, driving bidirectional hydraulic pump rotates backward, and bidirectional hydraulic pump is pumped through the first check valve from accumulator oil suction, bidirectional hydraulic
Right end hydraulic fluid port discharge fluid enters two-way hydraulic motor right end hydraulic fluid port, and two-way hydraulic motor drives the rotating shaft of swivel joint continuous
Rotate backward, the fluid of two-way hydraulic motor left end hydraulic fluid port discharge enters bidirectional hydraulic pump left end hydraulic fluid port, when hydraulic system is overloaded
When the second overflow valve open, fluid flows back to accumulator through the second overflow valve；Moment of torsion detects swivel joint in real time with speed probe
Rotating speed and torque signal, the processing of signal acquired control system is delivered to host computer, by host computer interface show rotating speed and
Torque data, and rotating speed and change in torque curve.
Above-mentioned host computer can control rotating speed and the steering of servomotor, realizes the revolution rotating speed of swivel joint, turns to and adjust
Section, rotational speed regulation scope is in 15~20r/min.
The beneficial effect of utility model is：
The real-time detection to swivel joint rotating speed and moment of torsion is automatically performed, avoids hydraulic system energy loss larger, causes
System temperature rise is excessive, influences the normal operation of system.Reliability is high, small integrated, while energy conservation and environmental protection.
Brief description of the drawings
Fig. 1 is the schematic diagram of the utility model；
Fig. 2 is the Hydraulic Power Transmission System structure chart of the utility model；
Fig. 3 is the Hydraulic Power Transmission System sectional view of the utility model.
Embodiment
Referring to the drawings, direct drive type electrohydraulic SERVO CONTROL swivel joint moment of torsion device for testing rotating speed, it mainly includes servo electricity
Machine 1, bidirectional hydraulic pump 2, accumulator 4, the first overflow valve 5, the second overflow valve 7, the first check valve 3, the second check valve 8, oil circuit
Block 15, two-way hydraulic motor 6, moment of torsion and speed probe 9, host computer 11, acquisition control system 12, servo-driver 13, are watched
Motor 1 is taken to be connected with oil path block 15 by 4 outer-hexagonal bolts 17, bidirectional hydraulic pump 2 is connected by screw with oil path block 15, the
One check valve 3, the second check valve 8 and bidirectional hydraulic pump 6 are made of one, and 1 output shaft of servomotor pumps 2 input shafts with bidirectional hydraulic
Connected by positive coupling 19, positive coupling 19 is located inside oil path block 15, and the first overflow valve 5 is located on oil path block 15
Face, is connected by screw with oil path block 15, and the second overflow valve 7 is located at before oil path block, is connected by screw with oil path block 15, is stored
Energy device 4 is located at behind oil path block 15, is connected by pipe fitting 18 with oil path block 15, and pressure gauge 14 directly passes through spiral shell with oil path block 15
Line is attached, and 4 through holes 16 are provided with oil path block 15, can realize that 15 position of oil path block is fixed by cartridge screw in hole.
Servomotor 1 rotates, and driving bidirectional hydraulic pump 2 rotates, and bidirectional hydraulic pump 2 is inhaled through the second check valve 8 from accumulator 4
Oil, bidirectional hydraulic pump 2 left end hydraulic fluid ports discharge fluid and enter 6 left end hydraulic fluid port of two-way hydraulic motor, and two-way hydraulic motor drives rotation
The rotating shaft of connector 10 continuously rotates forward, and the fluid of 6 right end hydraulic fluid port of two-way hydraulic motor discharge enters 2 right side of bidirectional hydraulic pump
Hydraulic fluid port is held, the first overflow valve 5 is opened during pressure overload, and fluid flows back to accumulator 4 through the first overflow valve 5；When servomotor 1 is reverse
Rotate, driving bidirectional hydraulic pump 2 rotates backward, and bidirectional hydraulic pump 2 is pumped through the first check valve 3 from 4 oil suction of accumulator, bidirectional hydraulic
2 right end hydraulic fluid ports discharge fluid enters 6 right end hydraulic fluid port of two-way hydraulic motor, and two-way hydraulic motor 6 drives the revolution of swivel joint 10
Axis continuously rotates backward, and the fluid of 6 left end hydraulic fluid port of two-way hydraulic motor discharge enters bidirectional hydraulic and pumps 2 left end hydraulic fluid ports, works as pressure
The second overflow valve 7 is opened during overload, and fluid flows back to accumulator 4 through the second overflow valve 7；Moment of torsion detects in real time with speed probe 9
The rotating speed and torque signal of swivel joint 10, the acquired control system 12 of signal handle, are delivered to host computer 11, pass through host computer
11 interface real-time display rotating speeds and torque data, and rotating speed, change in torque curve, when in 11 interface input speed number of host computer
According to, the acquired processing of control system 12 of signal is delivered to servo-driver 13, controls rotating speed and the steering of servomotor 1, so that
Realize and the rotating speed of swivel joint 10 is controlled.
The utility model provides a kind of direct drive type electrohydraulic SERVO CONTROL swivel joint moment of torsion device for testing rotating speed, above institute
State only is that the utility model is preferable to carry out method, it is noted that for those skilled in the art, not
On the premise of departing from the utility model principle, some improvement can also be made, these improvement also should be regarded as the guarantor of the utility model
Protect scope.
Claims (2)
- A kind of 1. direct drive type electrohydraulic SERVO CONTROL swivel joint moment of torsion device for testing rotating speed, it is characterised in that：It mainly includes watching Take motor (1), bidirectional hydraulic pump (2), accumulator (4), the first overflow valve (5), the second overflow valve (7), the first check valve (3), Second check valve (8), oil path block (15), two-way hydraulic motor (6), moment of torsion and speed probe (9), host computer (11), collection Control system (12), servo-driver (13), servomotor (1) are located on the left of oil path block (15), pass through 4 outer-hexagonal bolts (17) it is connected with oil path block (15), bidirectional hydraulic pump (2) is located on the right side of oil path block (15), is connected by screw and oil path block (15) Connect, the first check valve (3), the second check valve (8) and bidirectional hydraulic pump (2) be made of one, servomotor (1) output shaft with it is two-way Hydraulic pump (2) input shaft is connected by positive coupling (19), and positive coupling (19) is located at oil path block (15) inside, and first overflows Stream valve (5) is located at oil path block (15) above, is connected by screw with oil path block (15), the second overflow valve (7) is located at oil path block (15) before, it is connected by screw with oil path block (15), accumulator (4) is located at behind oil path block (15), passes through pipe fitting (18) It is connected with oil path block (15), pressure gauge (14) is directly attached with oil path block (15) by screw thread, and oil path block is provided with 4 on (15) A through hole (16), can realize that oil path block (15) position is fixed by cartridge screw in hole.
- 2. direct drive type electrohydraulic SERVO CONTROL swivel joint moment of torsion device for testing rotating speed according to claim 1, its feature exist In：Can control rotating speed and the steering of servomotor (1) by host computer (11), realize the revolution rotating speed of swivel joint (10) with Turn to and adjust, rotational speed regulation scope is in 15~20r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720588351.8U CN207263348U (en) | 2017-05-22 | 2017-05-22 | A kind of direct drive type electrohydraulic SERVO CONTROL swivel joint moment of torsion device for testing rotating speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720588351.8U CN207263348U (en) | 2017-05-22 | 2017-05-22 | A kind of direct drive type electrohydraulic SERVO CONTROL swivel joint moment of torsion device for testing rotating speed |
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| Publication Number | Publication Date |
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| CN207263348U true CN207263348U (en) | 2018-04-20 |
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| CN201720588351.8U Active CN207263348U (en) | 2017-05-22 | 2017-05-22 | A kind of direct drive type electrohydraulic SERVO CONTROL swivel joint moment of torsion device for testing rotating speed |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108692189A (en) * | 2018-05-29 | 2018-10-23 | 山东华鹏精机股份有限公司 | Rotary joint safety monitoring system and monitoring method |
| CN108953306A (en) * | 2018-08-26 | 2018-12-07 | 燕山大学 | Duplex pump directly driven volume controlled electro-hydraulic servo control system |
| CN115324978A (en) * | 2022-08-09 | 2022-11-11 | 燕山大学 | Reliability test device for aviation hydraulic rotary joint |
-
2017
- 2017-05-22 CN CN201720588351.8U patent/CN207263348U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108692189A (en) * | 2018-05-29 | 2018-10-23 | 山东华鹏精机股份有限公司 | Rotary joint safety monitoring system and monitoring method |
| CN108953306A (en) * | 2018-08-26 | 2018-12-07 | 燕山大学 | Duplex pump directly driven volume controlled electro-hydraulic servo control system |
| CN108953306B (en) * | 2018-08-26 | 2021-01-08 | 燕山大学 | Direct-drive type volume control electro-hydraulic servo control system of duplex pump |
| CN115324978A (en) * | 2022-08-09 | 2022-11-11 | 燕山大学 | Reliability test device for aviation hydraulic rotary joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Nanjing Fogg Electric Co., Ltd. Assignor: Nanjing Forestry University Contract record no.: 2018320000268 Denomination of utility model: Directly drive formula electricity liquid servo control rotary joint moment of torsion rotational speed testing arrangement Granted publication date: 20180420 License type: Common License Record date: 20181031 Assignee: Chuzhou Monte tech Environmental Protection Technology Co., Ltd. Assignor: Nanjing Forestry University Contract record no.: 2018320000276 Denomination of utility model: Directly drive formula electricity liquid servo control rotary joint moment of torsion rotational speed testing arrangement Granted publication date: 20180420 License type: Common License Record date: 20181031 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Nanjing Monte tech Environmental Protection Technology Co., Ltd. Assignor: Nanjing Forestry University Contract record no.: X2019320000110 Denomination of utility model: Directly drive formula electricity liquid servo control rotary joint moment of torsion rotational speed testing arrangement Granted publication date: 20180420 License type: Common License Record date: 20191015 |
|
| EE01 | Entry into force of recordation of patent licensing contract |