A synchronous automatic clutch limit performance test system

Abstract

The present invention belongs to the field of clutch technology, and specifically relates to a synchronous automatic clutch limit performance test system. The present invention provides a synchronous automatic clutch limit performance test system, which can be used to test the clutch engagement and disengagement time, clutch engagement and disengagement slip stroke, etc. under different oil pressures in the damping oil chamber. The pressure value and displacement value during the clutch engagement and disengagement process are measured by a pressure transmitter and a displacement sensor, and the relationship between the damping oil chamber pressure value and the clutch engagement and disengagement slip displacement and time is obtained, and the limit pressure value at which the clutch cannot achieve normal engagement and disengagement can be obtained, which has direct guiding significance for designing the damping structure of the clutch and extending the service life of the clutch.

Description

Technical Field

[0001] The invention belongs to the technical field of clutches, and in particular relates to a synchronous automatic clutch limit performance testing system. Background Art

[0002] At present, new transmission devices such as diesel-fuel alternating (CODOG), diesel-fuel alternating (COGOG) and diesel-fuel combined (COGAG) have been widely used in ship power transmission devices due to their superior performance. In the above power devices, a fully automatic clutch is required to perform operating mode conversion according to the operating requirements of the power system. The synchronous automatic clutch is a fully automatic one-way overrunning clutch that transmits power through gear elements. It only relies on the change of the speed at both ends to automatically "engage" and "disengage" without any external control.

[0003] "Engagement" and "disengagement" are two important performances of the synchronous automatic clutch, which directly determine whether the clutch can work normally and are the key to realizing the working condition conversion of the ship power system. There are many factors that affect the engagement and disengagement of the clutch, such as oil pressure, sliding surface clearance, different axiality, etc. China has been committed to research in this area. After the clutch is assembled, it is a closed structure. It is a difficult problem to test the extreme performance of "oil pressure" among the factors that affect its engagement and disengagement, especially under what extreme pressure conditions the clutch cannot engage and disengage normally, which cannot be directly calculated. Summary of the invention

[0004] The object of the present invention is to provide a synchronous automatic clutch limit performance testing system for testing the influence of different oil pressures in the damping oil chamber on the clutch engagement and disengagement performance.

[0005] A synchronous automatic clutch limit performance test system includes a pressure signal test system, a displacement signal test system, and a signal receiving and data processing system; the pressure signal system includes a pressure transmitter and a signal transmitter; the pressure transmitter is installed in a groove provided on the upper part of a support shaft of the clutch; the signal transmitter is installed in an input gear ring of the clutch, and a signal transmitting antenna of the signal transmitter extends out of the input gear ring of the clutch; the pressure transmitter is connected to the signal transmitter via a signal line, and the signal line is arranged in a through hole provided inside the support shaft and the input gear ring of the clutch; the displacement signal test system includes a measuring ring and a displacement sensor; the measuring ring is installed on a sliding member of the clutch and moves axially with the engagement / disengagement of the clutch; the displacement sensor is arranged on the left and right sides of the measuring ring, and the axial sliding stroke of the clutch is greater than the measuring stroke of the displacement sensor; the signal receiving and data processing system receives signals from the signal transmitting antenna and the displacement sensor.

[0006] Furthermore, when the clutch is in a disengaged state, the rotation speed of the clutch input member is increased so that its rotation speed is higher than the rotation speed of the clutch output end. Under the condition of the rotation speed difference at both ends, the clutch sliding member moves toward the input member, and the volume of the damping oil chamber between the clutch sliding member and the buffer end ring gradually decreases until the buffer end ring and the input member are in close contact, and the sliding member stops moving; the pressure transmitter measures the pressure change value in the damping oil chamber during the whole process, and transmits it to the signal receiving and data processing system through the signal transmitter; the displacement sensor measures the axial displacement of the clutch engagement / disengagement; the signal receiving and data processing system performs data processing and analysis calculations after receiving the signals from the signal transmitting antenna and the displacement sensor.

[0007] The beneficial effects of the present invention are:

[0008] The present invention provides a synchronous automatic clutch limit performance test system, which can be used to test the clutch engagement and disengagement time, clutch engagement and disengagement slip stroke, etc. under different oil pressures in the damping oil chamber. The pressure value and displacement value in the clutch engagement and disengagement process are measured by a pressure transmitter and a displacement sensor, and the relationship between the damping oil chamber pressure value and the clutch engagement and disengagement slip displacement and time is obtained. The limit pressure value at which the clutch cannot achieve normal engagement and disengagement can also be obtained, which has direct guiding significance for designing the damping structure of the clutch and extending the service life of the clutch. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of a synchronous automatic clutch limit performance testing system provided by the present invention actually being assembled on a clutch.

[0010] Figure 2 It is a partial enlarged schematic diagram of the clutch disengagement state limit performance test performed using the present invention.

[0011] Figure 3 It is a partially enlarged schematic diagram of the clutch engagement state limit performance test performed using the present invention. DETAILED DESCRIPTION

[0012] The present invention is further described below in conjunction with the accompanying drawings.

[0013] The present invention provides a synchronous automatic clutch limit performance testing system, which can be used to test the clutch engagement and disengagement time, clutch engagement and disengagement slip stroke, etc. under different oil pressures in the damping oil chamber, and has important guiding significance for the structural design of the clutch and extending the service life of the clutch.

[0014] Embodiment 1:

[0015] A synchronous automatic clutch limit performance test system includes a pressure signal test system, a displacement signal test system, and a signal receiving and data processing system 13; the pressure signal system includes a pressure transmitter 3 and a signal transmitter 6; the pressure transmitter 3 is installed in a groove provided on the upper part of a clutch support shaft 9; the signal transmitter 6 is installed in an input gear ring 10 of the clutch, and a signal transmitting antenna 5 of the signal transmitter 6 extends out of the clutch input gear ring 10; the pressure transmitter 3 is connected to the signal transmitter 6 through a signal line, and the signal line is arranged in a through hole 11 provided inside the clutch support shaft 9 and the input gear ring 10; the displacement signal test system includes a measuring ring 1 and a displacement sensor 2; the measuring ring 1 is installed on a sliding member 12 of the clutch and moves axially with the clutch engagement / disengagement; the displacement sensor 2 is arranged on the left and right sides of the measuring ring 1, and the clutch axial sliding stroke is greater than the measuring stroke of the displacement sensor 2; the signal receiving and data processing system 13 receives signals from the signal transmitting antenna 5 and the displacement sensor 2.

[0016] During the clutch operation, as the sliding member 12 slides axially, the volume on one side of the damping oil chamber 14 gradually decreases, while the volume on the other side gradually increases, causing a change in the lubricating oil pressure in the damping oil chamber 14. The change in lubricating oil pressure is measured by the pressure transmitter 3, and received and processed by the signal receiving and data processing system 13.

[0017] The displacement measuring ring 1 is located on the sliding member 12 of the clutch and moves with it, and two displacement sensors 2 are located at both ends of the measuring ring and fixed. The change of the relative displacement between the sliding member 12 and the displacement sensor 2 is measured by the displacement sensor 2, and received and processed by the signal receiving and data processing system 13.

[0018] By analyzing the processed data, the engagement and disengagement time and the engagement and disengagement displacement of the clutch under different pressures in the damping oil chamber can be obtained. And the limit pressure value at which the clutch cannot achieve normal engagement and disengagement can be directly obtained through testing. In other words, when the pressure in the damping oil chamber reaches a certain value, the axial force of the clutch engagement and disengagement movement is not enough to overcome the resistance generated by the oil pressure in the damping oil chamber, and the clutch sliding member cannot slide axially, resulting in the clutch being unable to complete the engagement and disengagement action. The limit performance test system provided by the present invention has a direct guiding role in the design of the clutch damping structure.

[0019] Embodiment 2:

[0020] In order to realize the limit test of the factors affecting the engagement and disengagement of the synchronous automatic clutch and better use the clutch, the present invention provides a set of synchronous automatic clutch limit performance testing system. During the engagement and disengagement process of the clutch, under different pressure values ​​in the damping oil chamber, the displacement and time of the ring slip are tested and measured, so as to calculate the influence of pressure on the engagement and disengagement performance of the clutch.

[0021] Figure 1 The figure is a schematic diagram of the clutch limit performance test device. It has two sets of test parts: pressure signal test system and displacement signal test system. The pressure signal system is mainly composed of pressure transmitter 3, J39 adhesive 4, signal transmitting antenna 5, signal transmitter 6, etc. A groove is machined on the support shaft 9, and the pressure transmitter 3 is placed in the groove. The pressure transmitter 3 is fixed in the groove by using J39 adhesive 4. The signal line of the pressure transmitter 3 is connected to the signal transmitter 6 through the support shaft 9 and the five machined holes 11 in the input gear ring 10, and then the signal is sent to the signal receiving and data processing system 13 through the signal transmitting antenna 5 for data processing. The signal transmitter 6 is installed in the input gear ring 10 and fixed with a cover plate 8. The signal transmitting antenna 5 is installed through the hole machined in the input gear ring 10 and fixed with a cover plate 7. The displacement signal test system is mainly composed of a measuring ring 1 and two displacement sensors 2. The measuring ring 1 is installed on the clutch sliding member 12 and can move axially with the clutch engagement / disengagement. Two displacement sensors 2 are fixed at both ends of the measuring ring 1 through brackets. Since the axial slip stroke of the clutch is greater than the measuring stroke of the displacement sensor 2, a displacement sensor 2 is arranged on each of the left and right sides of the measuring ring 1. The displacement signal is sent to the signal receiving and data processing system 13, and the two displacement signals are used to measure and calculate the axial displacement of the clutch engagement / disengagement.

[0022] Figure 2 This is a schematic diagram of the clutch disengagement state limit performance test system. Figure 3 It is a schematic diagram of the clutch engagement state limit performance test system. When the clutch is in the disengaged state, the speed of the input member 16 is increased to make it higher than the speed of the clutch output end. Under the condition of the speed difference between the two ends, the sliding member 12 moves toward the input member 16. The damping oil chamber 14 is pushed by the sliding member 12, and the volume of the oil chamber gradually decreases. The pressure in the damping oil chamber 14 changes until the buffer end ring 15 moves to close to the input member 16, that is, Figure 3 The clutch is in the engaged state shown, and the sliding member 12 stops moving. During the whole process, the pressure change value in the damping oil chamber 14 is measured by the pressure transmitter 3, and the measured value is transmitted to the signal receiving system, and then calculated and analyzed through data processing.

[0023] Figure 2 and Figure 3The changes in the displacement signal test system and the pressure signal test system are closely related. When the sliding member 12 moves from the disengaged state to the engaged state of the clutch, the displacement signal changes at the same time. A displacement measuring ring 1 is installed on the sliding member 12. Since the displacement sensors 2a and 2b both have sensing ranges, and the axial displacement stroke of the clutch is greater than the range of the displacement sensor, the entire displacement test system is equipped with two displacement sensors. When the clutch is disengaged, the left displacement sensor 2a is used to sense the displacement signal. When the clutch is engaged, the right displacement sensor 2b is used to sense the displacement signal. The displacement measurement value enters the signal receiving system, and then is calculated and analyzed through data processing.

[0024] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A synchronous automatic clutch limit performance test system, characterized in that: The invention comprises a pressure signal testing system, a displacement signal testing system, and a signal receiving and data processing system (13); the pressure signal testing system comprises a pressure transmitter (3) and a signal transmitter (6); the pressure transmitter (3) is installed in a groove provided on the upper part of a support shaft (9) of a clutch; the signal transmitter (6) is installed in an input gear ring (10) of the clutch, and a signal transmitting antenna (5) of the signal transmitter (6) extends out of the input gear ring (10) of the clutch; the pressure transmitter (3) is connected to the signal transmitter (6) via a signal line, and the signal line is arranged at the clutch. The displacement signal testing system comprises a measuring ring (1) and a displacement sensor (2); the measuring ring (1) is mounted on a sliding member (12) of the clutch and moves axially with the engagement / disengagement of the clutch; the displacement sensor (2) is arranged on the left and right sides of the measuring ring (1), and the axial sliding stroke of the clutch is greater than the measuring stroke of the displacement sensor (2); and the signal receiving and data processing system (13) receives signals from the signal transmitting antenna (5) and the displacement sensor (2).

2. A synchronous automatic clutch limit performance test system according to claim 1, characterized in that: When the clutch is in a disengaged state, the speed of the clutch input member (16) is increased to make it higher than the speed of the clutch output end. The clutch sliding member (12) moves toward the input member (16) under the condition of the speed difference between the two ends. The volume of the damping oil chamber (14) between the clutch sliding member (12) and the buffer end ring (15) gradually decreases until the buffer end ring (15) and the input member (16) are close to each other, and the sliding member (12) stops moving. The pressure transmitter (3) measures the pressure change value in the damping oil chamber (14) during the whole process and transmits it to the signal receiving and data processing system (13) through the signal transmitter (6). The displacement sensor (2) measures the axial displacement of the clutch engagement / disengagement. The signal receiving and data processing system (13) performs data processing and analysis calculation after receiving the signals from the signal transmitting antenna (5) and the displacement sensor (2).

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