CN113029535A - Differential lock cylinder wear test device - Google Patents
Differential lock cylinder wear test device Download PDFInfo
- Publication number
- CN113029535A CN113029535A CN202110220623.XA CN202110220623A CN113029535A CN 113029535 A CN113029535 A CN 113029535A CN 202110220623 A CN202110220623 A CN 202110220623A CN 113029535 A CN113029535 A CN 113029535A
- Authority
- CN
- China
- Prior art keywords
- gear sleeve
- differential lock
- test device
- lock cylinder
- movable gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Retarders (AREA)
Abstract
The invention discloses a differential lock cylinder abrasion test device, and relates to the technical field of automobile tests. This differential lock cylinder wear test device includes: the differential lock gear sleeve comprises a movable gear sleeve and a fixed gear sleeve which are oppositely arranged; the output end of the rotary driving mechanism is provided with a transmission shaft, the transmission shaft is in transmission connection with the movable gear sleeve to drive the movable gear sleeve to rotate, and the transmission shaft is also in sliding connection with the movable gear sleeve; the air outlet end of the air supply mechanism is communicated with the compression chamber of the cylinder to be tested; and the shifting fork mechanism comprises a shifting fork, one side of the piston in the cylinder to be tested, which deviates from the compression chamber, is in transmission connection with the movable gear sleeve through the shifting fork so as to drive the movable gear sleeve to move along the direction in which the transmission shaft and the movable gear sleeve slide relatively, so that the movable gear sleeve and the fixed gear sleeve are meshed or separated from each other. The differential lock cylinder abrasion test device can simulate the actual working condition of the differential lock cylinder, obtain the abrasion characteristic of the differential lock cylinder, and has high economical efficiency without carrying out a whole vehicle test.
Description
Technical Field
The invention relates to the technical field of automobile tests, in particular to a differential lock cylinder abrasion test device.
Background
In motor vehicles, a differential lock is usually installed, which can rapidly lock the differential when one drive axle is idling, so that the two drive axles become rigidly connected and the vehicle can continue to travel. The differential lock generally comprises a cylinder, a movable gear sleeve, a fixed gear sleeve and other parts. The cylinder is a core actuating mechanism of the differential lock and is used for driving the movable gear sleeve to move so as to enable the movable gear sleeve and the fixed gear sleeve to be combined, kept or separated.
If the cylinder is worn during use, the tightness of the cylinder is reduced, so that the performance of combining, holding and disengaging the differential lock is reduced, and even the differential lock fails. Therefore, in designing a differential lock, it is important to know the wear characteristics of the cylinder of the differential lock.
At present, because a special test device for testing the wear characteristic of the cylinder of the differential lock is lacked, the test is generally carried out by using a whole vehicle. However, for the whole vehicle test, the problems of long test time, poor test working condition consistency, high cost and the like exist, and the overall economy is poor.
Therefore, a wear test device for a differential lock cylinder is needed to solve the above problems.
Disclosure of Invention
The invention aims to provide a differential lock cylinder abrasion test device which can simulate the actual working condition of a differential lock cylinder, obtain the abrasion characteristic of the differential lock cylinder and has higher economy.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a differential lock cylinder abrasion test device, which is used for testing the abrasion characteristic of a cylinder to be tested, wherein the cylinder to be tested comprises a cylinder body and a piston, the piston and the cylinder body are matched to form a compression chamber, and the differential lock cylinder abrasion test device comprises:
the differential lock gear sleeve comprises a movable gear sleeve and a fixed gear sleeve which are oppositely arranged;
the output end of the rotary driving mechanism is provided with a transmission shaft, the transmission shaft is in transmission connection with the movable gear sleeve to drive the movable gear sleeve to rotate, and the transmission shaft is also in sliding connection with the movable gear sleeve;
the air outlet end of the air supply mechanism is communicated with the compression chamber so as to supply air into the compression chamber;
and the shifting fork mechanism comprises a shifting fork, one side of the piston, which deviates from the compression chamber, is connected with the movable gear sleeve in a transmission way so as to drive the movable gear sleeve to move along the transmission shaft and the direction in which the movable gear sleeve slides relatively, so that the movable gear sleeve and the fixed gear sleeve are meshed or separated from each other.
Optionally, the transmission shaft is set as a half shaft, one end of the half shaft is provided with a flange, and the other end of the half shaft is provided with a spline;
the rotary driving mechanism further comprises a driving motor, an output shaft of the driving motor is in transmission connection with the half shaft through the flange plate, and the half shaft is in sliding transmission connection with the movable gear sleeve through the spline.
Optionally, the rotary drive mechanism further comprises a coupling, an intermediate shaft, a bearing seat and a transition piece;
the output shaft of the driving motor is connected with one end of the intermediate shaft through the coupler, the other end of the intermediate shaft is connected with the flange plate through the transition connecting piece, and the bearing seat is sleeved on the intermediate shaft and located between two ends of the intermediate shaft.
Optionally, the differential lock cylinder wear test device further comprises a rotation speed sensor, and the rotation speed sensor is used for detecting the output rotation speed of the driving motor.
Optionally, the rotation speed sensor is in communication connection with the driving motor to control the driving motor to adjust the output rotation speed.
Optionally, the air supply mechanism comprises an air source and an air servo valve, and the air outlet end of the air source is communicated with the compression chamber through the air servo valve.
Optionally, a ring groove is circumferentially arranged on the movable gear sleeve;
one end of the shifting fork is connected with one side of the compression chamber, which deviates from the piston, and the other end of the shifting fork is sleeved on the annular groove and is in clearance fit with the bottom wall of the annular groove.
Optionally, the shifting fork mechanism further comprises a shifting fork shaft and a shifting fork return spring, and the piston is connected with the shifting fork through the shifting fork shaft;
optionally, the differential lock cylinder wear test device further comprises a reducer housing, and the reducer housing is mounted on one side, away from the piston, of the shifting fork;
the shifting fork mechanism further comprises a shifting fork shaft and a shifting fork return spring, the shifting fork shaft penetrates through the shifting fork, one end of the shifting fork shaft is fixedly connected with the piston, the other end of the shifting fork shaft is connected with the inside of the speed reducer shell in a sliding mode along the moving direction of the shifting fork, the shifting fork return spring is installed inside the speed reducer shell, and two ends of the shifting fork return spring are respectively abutted to the speed reducer shell and the shifting fork.
Optionally, the differential lock cylinder wear test device further comprises a cooling fan, the cooling fan is arranged outside the cylinder to be tested, and an air outlet of the cooling fan faces towards the cylinder to be tested.
Optionally, the differential lock cylinder wear test device further comprises a temperature sensor, and the temperature sensor is used for detecting the temperature of the cylinder to be tested;
the temperature sensor is also in communication connection with the cooling fan to control the cooling fan to be opened and closed and adjust the running speed.
The invention has the beneficial effects that:
the invention provides a differential lock cylinder abrasion test device, which drives a movable gear sleeve to rotate through a rotary driving mechanism and keeps a fixed gear sleeve to be fixed, so that the situation that the movable gear sleeve and the fixed gear sleeve rotate relatively in a differential lock is simulated. On this basis, through the air feed mechanism to the compression chamber air feed of the cylinder that awaits measuring, make the piston remove, and then accessible shift fork drives and removes the tooth cover and removes, makes and removes the tooth cover and be close to or keep away from fixed tooth cover, realizes the meshing or the separation between removal tooth cover and the fixed tooth cover, has simulated the transmission situation of cylinder and removal tooth cover in the differential lock, has finally accomplished the simulation to the cylinder operating condition that awaits measuring, can obtain the cylinder wear characteristic that is close to reality.
On the whole, when the differential lock cylinder abrasion test device is used for testing, the whole vehicle test is not needed, the test time is short, the test working condition consistency is good, the cost is low, and the differential lock cylinder abrasion test device has good economy.
Drawings
FIG. 1 is a schematic view of the overall structure of a differential lock cylinder wear test device provided by an embodiment of the invention;
FIG. 2 is a schematic view of a partial structure of a transition piece in a differential lock cylinder wear test device provided by an embodiment of the invention;
fig. 3 is a schematic front view of a shift fork in the differential lock cylinder wear test device provided by the embodiment of the invention.
In the figure:
100. a cylinder to be tested; 101. a cylinder body; 102. a piston; 103. a compression chamber;
1. a differential lock gear sleeve; 11. moving the gear sleeve; 111. a ring groove; 12. fixing a gear sleeve;
2. a rotation driving mechanism; 21. a base; 22. a drive motor; 23. a coupling; 24. an intermediate shaft; 25. a bearing seat; 26. a transition piece; 261. a half coupling; 262. a flange member; 2621. accommodating grooves; 27. a drive shaft; 271. a flange plate;
3. an air supply mechanism; 31. a gas source; 32. an air servo valve;
4. a shifting fork mechanism; 41. a fork shaft; 42. a shifting fork; 421. a fork lever; 422. a fork leg; 43. a shift fork return spring;
5. a reducer housing; 6. a rotational speed sensor; 7. a temperature sensor; 8. a control module; 9. and (5) cooling the fan.
Detailed Description
In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
The embodiment provides a differential lock cylinder wear test device for testing the wear characteristics of the cylinder 100 to be tested. The cylinder 100 to be tested comprises a cylinder body 101 and a piston 102, and the piston 102 and the cylinder body 101 cooperate to form a compression chamber 103.
As shown in fig. 1-3, the differential lock cylinder wear test device mainly comprises a differential lock gear sleeve 1, a rotary driving mechanism 2, an air supply mechanism 3 and a shifting fork mechanism 4. Wherein, the differential lock gear sleeve 1 comprises a movable gear sleeve 11 and a fixed gear sleeve 12 which are oppositely arranged. The output end of the rotary driving mechanism 2 is provided with a transmission shaft 27, the transmission shaft 27 is in transmission connection with the movable gear sleeve 11 to drive the movable gear sleeve 11 to rotate, and the transmission shaft 27 is also in sliding connection with the movable gear sleeve 11. The air outlet end of the air supply mechanism 3 communicates with the compression chamber 103 to supply air into the compression chamber 103. The shifting fork mechanism 4 comprises a shifting fork 42, and one side of the piston 102, which is far away from the compression chamber 103, is in transmission connection with the movable gear sleeve 11 through the shifting fork 42 so as to drive the movable gear sleeve 11 to move along the direction in which the transmission shaft 27 and the movable gear sleeve 11 slide relatively, so that the movable gear sleeve 11 is close to or away from the fixed gear sleeve 12, and the movable gear sleeve 11 and the fixed gear sleeve 12 are meshed with or separated from each other.
According to the arrangement, the rotary driving mechanism 2 drives the movable gear sleeve 11 to rotate and keeps the fixed gear sleeve 12 still, the situation that the movable gear sleeve 11 and the fixed gear sleeve 12 in the differential lock rotate relatively is simulated, and the rotating speed of the movable gear sleeve 11 is equivalent to the rotating speed difference between the left driving wheel and the right driving wheel in the whole vehicle. Further, the air supply mechanism 3 supplies air to the compression chamber 103 of the cylinder 100 to be measured, so that the piston 102 can move, the shifting fork 42 can drive the movable gear sleeve 11 to move, the movable gear sleeve 11 is close to or far away from the fixed gear sleeve 12, meshing or separation between the movable gear sleeve 11 and the fixed gear sleeve 12 is realized, and the transmission condition of the cylinder and the movable gear sleeve 11 in the differential lock is simulated.
In short, the situation that the cylinder 100 to be tested drives the movable gear sleeve 11 to move and the movable gear sleeve 11 and the fixed gear sleeve 12 are combined, kept or separated is simulated through the arrangement, namely, the simulation of the actual operation working condition of the cylinder 100 to be tested is completed, the abrasion characteristics (including the abrasion characteristics of the cylinder lining, the piston 102 and the like) close to the actual cylinder can be obtained, and the design of the differential lock is facilitated. On the whole, when the differential lock cylinder abrasion test device is used for testing, the whole vehicle test is not needed, the test time is short, the test working condition consistency is good, the cost is low, and the differential lock cylinder abrasion test device has good economy.
In this embodiment, an O-ring is attached to the piston 102, and the piston 102 is sealingly connected to a liner inside the cylinder 101 via the O-ring. In testing the cylinder 100 under test, the test parameters were set as in table 1 below. Wherein, the continuous test from the working condition 1 to the working condition 8 is a test cycle, and the test is terminated when 3500 test cycles are reached. After the test is ended, the tightness of the cylinder 100 to be tested is detected, then the cylinder 100 to be tested is disassembled and inspected, and the abrasion conditions of the piston 102, the O-shaped sealing ring, the lining and the like are detected.
TABLE 1
Next, specific arrangements of the rotation driving mechanism 2, the gas supply mechanism 3, and the fork mechanism 4 will be described in order.
For the rotary drive mechanism 2, as shown in fig. 1, the rotary drive mechanism 2 includes a base 21, a drive motor 22, a coupling 23, an intermediate shaft 24, a bearing housing 25, and a transition piece 26 in addition to a transmission shaft 27. The driving motor 22 is installed on the base 21, an output shaft of the driving motor 22 is connected with one end of the intermediate shaft 24 through the coupler 23, the other end of the intermediate shaft 24 is connected with one end, which is not connected with the movable gear sleeve 11, of the transmission shaft 27 through the transition connecting piece 26, and the bearing seat 25 is sleeved on the intermediate shaft 24 and located between two ends of the intermediate shaft 24. According to the arrangement, the movable gear sleeve 11 can be driven to rotate by the driving motor 22. Meanwhile, in the operation process of the rotary driving mechanism 2, the intermediate shaft 24 can be supported through the bearing seat 25, and the stability and reliability of the whole structure are ensured.
In this embodiment, the output shaft of the driving motor 22, the intermediate shaft 24, the transmission shaft 27, the movable gear sleeve 11, and the fixed gear sleeve 12 are coaxially disposed. Furthermore, considering that certain deviation exists during installation, the diaphragm coupler is selected as the coupler 23, the capability of the diaphragm coupler for compensating misalignment of two axes is strong, the structure is compact, the strength is high, and the service life is long.
As shown in fig. 1 and 2, the propeller shaft 27 is provided as a half shaft, one end of which is provided with a flange 271 and the other end of which is provided with splines. As a whole, the output shaft of the driving motor 22 is in transmission connection with the half shaft through the flange 271, and the half shaft is in sliding transmission connection with the movable gear sleeve 11 through the spline. Thus, the movable gear sleeve 11 can be driven to rotate by the half shaft, and the movable gear sleeve 11 can slide along the half shaft to enable the movable gear sleeve 11 to approach or separate from the fixed gear sleeve 12.
In this embodiment, the intermediate shaft 24 is connected to the flange 271 of the axle shaft via the transition piece 26. As shown in FIG. 2, transition piece 26 is integrally split into two halves, including a coaxially disposed and butted-up coupling half 261 and a flange 262. Wherein, the half coupling 261 is provided with a mounting hole along the axial direction, and one end of the intermediate shaft 24 close to the flange 271 is fixed in the mounting hole. The flange member 262 is abutted against the flange 271, and a receiving groove 2621 is further formed on a side of the flange member 262 facing the flange 271 for receiving a protruding portion of the flange 271. Specifically, the coupling half 261 is fixed to the flange member 262 by a plurality of fastening screws (disposed along the circumferential direction of the coupling half 261), and the flange member 262 is fixed to the flange plate 271 by a plurality of bolt assemblies (disposed along the circumferential direction of the flange plate 271).
As for the air supply mechanism 3, as shown in fig. 1, it includes an air supply 31 and an air servo valve 32. Wherein, the air outlet end of the air source 31 is communicated with the compression chamber 103 through the air servo valve 32. The on-off of the air supply can be controlled by the air servo valve 32, and the air supply flow can be controlled more accurately. Specifically, the air outlet end of the air source 31 is connected to the air inlet of the air servo valve 32 through an air pipeline, and the air outlet of the air servo valve 32 is connected to the air inlet of the air cylinder to supply air into the compression chamber 103. The air source 31 may be a compressor or an air tank as long as compressed air can be supplied.
As for the shift fork 42, as shown in fig. 1, its connection to the moving sleeve 11 is set as follows: a ring groove 111 is arranged on the movable gear sleeve 11 along the circumferential direction of the movable gear sleeve 11; one end of the shifting fork 42 is connected with one side of the piston 102 departing from the compression chamber 103, and the other end of the shifting fork 42 is sleeved on the ring groove 111 and is in clearance fit with the bottom wall of the ring groove 111. Therefore, the shifting fork 42 can drive the shifting gear sleeve 11 to move along the transmission shaft 27, and the shifting fork 42 can be ensured to rotate relative to the shifting gear sleeve 11. It can be understood that the shifting fork 42 selected in practical tests should be in clearance fit with the moving gear sleeve 11, so that the moving gear sleeve 11 rotates in the shifting fork 42.
In this embodiment, the differential lock cylinder wear test device further includes a reducer casing 5, and the reducer casing 5 is installed on one side of the shifting fork 42 departing from the piston 102. In addition to the fork 42, the fork mechanism 4 includes a fork shaft 41 and a fork return spring 43. The shift fork shaft 41 penetrates the shift fork 42, one end of the shift fork shaft 41 is fixedly connected with the piston 102, the other end of the shift fork shaft 41 is connected in the speed reducer casing 5 in a sliding mode along the moving direction of the shift fork 42, the shift fork return spring 43 is installed in the speed reducer casing 5, and two ends of the shift fork return spring 43 are respectively abutted to the speed reducer casing 5 and the shift fork 42.
More specifically, as can be seen in fig. 1, the fork shaft 41 is divided into two main sections. The first section of the shift fork shaft 41 connects the piston 102 and the shift fork 42, and the second section of the shift fork shaft 41 is slidably connected to the reducer case 5. In this embodiment, the shift fork return spring 43 is sleeved on the second section of the shift fork shaft 41. As shown in fig. 3, the shifting fork 42 includes a shifting fork rod 421 and a fork leg 422 disposed at one end of the shifting fork rod 421, the shifting fork shaft 41 is mounted at one end of the shifting fork rod 421, which is not connected to the fork leg 422, and the shifting fork 42 is sleeved on the movable gear sleeve 11 through the fork leg 422.
At this time, the working process of the fork mechanism 4 is as follows: if the movable gear sleeve 11 and the fixed gear sleeve are separated from each other at the beginning, when the compression chamber 103 is filled with air, the piston 102 drives the shifting fork 42 to move through the shifting fork shaft 41, and the shifting fork 42 further drives the movable gear sleeve 11 to be close to the fixed gear sleeve 12 until the movable gear sleeve 11 is combined with the fixed gear sleeve 12; then, keeping the air pressure in the compression chamber 103 constant, the movable gear sleeve 11 and the fixed gear sleeve 12 can be maintained in a combined state; finally, when the compression chamber 103 is exhausted, the shift fork 42 is reset by the shift fork return spring 43, and the shift fork 42 further drives the movable gear sleeve 11 to disengage from the fixed gear sleeve 12. The above operation conditions substantially coincide with the actual operation conditions of the cylinder 100 to be measured.
Besides the structure, the differential lock cylinder abrasion test device is also provided with a measurement and control mechanism, a cooling fan 9 and other parts, so that the test can be conveniently carried out.
As shown in fig. 1, the measuring and controlling mechanism includes a rotation speed sensor 6, and the rotation speed sensor 6 can detect the output rotation speed of the driving motor 22, so that a tester can more intuitively know whether the rotation speed matches the set vehicle speed. Further, a control module 8 is further arranged in the measurement and control mechanism, and the rotating speed sensor 6 is in communication connection with the driving motor 22 through the control module 8. At this time, the rotation speed information can be transmitted to the control module 8 through the rotation speed sensor 6, and then the operation of the driving motor 22 is controlled through the control module 8, so that the purpose of automatically adjusting the output rotation speed is achieved. In the present embodiment, the rotation speed sensor 6 is fixed to the bearing housing 25.
In this embodiment, when considering that the cylinder 100 to be tested is tested, the duration time of the cylinder 100 to be tested is long (the cylinder under the actual working condition only needs to operate when one drive axle idles, and the duration time is short), and the temperature of the cylinder 100 to be tested is higher than the temperature under the actual working condition, so the cooling fan 9 is arranged outside the cylinder 100 to be tested, and the air outlet of the cooling fan 9 is arranged towards the cylinder 100 to be tested. Therefore, the cooling fan 9 can blow cold air to the cylinder 100 to be measured to cool the cylinder 100 to be measured, so that the temperature of the cylinder 100 to be measured can be basically reduced to be the same as the temperature under the actual working condition.
Optionally, the measuring and controlling mechanism further comprises a temperature sensor 7, and the temperature of the cylinder can be detected through the temperature sensor 7. Further, the temperature sensor 7 is also in communication connection with a cooling fan 9 through a control module 8. After the temperature sensor 7 transmits the measured cylinder temperature to the control module 8, the control module 8 can control the cooling fan 9 to be turned on or off or adjust the operation speed. In this embodiment, the temperature sensor 7 is an infrared temperature sensor, and is disposed right in front of the cylinder 100 to be detected, so that the detection speed is high, and the detection precision is high.
Specifically, if the measured temperature of the cylinder 100 to be measured is higher than the temperature under the actual working condition, the cooling fan 9 may be turned on to cool the cylinder 100 to be measured; when the cooling fan 9 runs, the rotating speed of the cooling fan 9 can be adjusted through the detected temperature reduction condition so as to adjust the cooling speed; finally, when the measured temperature of the cylinder 100 to be measured is substantially the same as the temperature under the actual working condition, the cooling fan 9 may be turned off, or the cooling fan 9 may be controlled to maintain a certain rotation speed so that the temperature of the cylinder 100 to be measured is within a stable range (substantially the same as the temperature fluctuation range under the actual working condition).
Alternatively, the control module 8 may be a PLC controller. Since the structure of the PLC controller is the prior art, it is not described herein in detail. Further, a PC can be arranged in the measuring and controlling mechanism to be communicated with the PLC. The human-computer interface system of the PC can interact with the PLC more conveniently, and then commands are transmitted to each execution unit of the testing device through the PLC, each step of requirements in the testing process are completed, and related data are measured, collected, processed and stored at the same time, so that the testing process of the test is completed.
Further, the differential lock cylinder abrasion test device further comprises an electric mechanism (not shown in the figure), wherein the electric mechanism comprises parts such as an industrial personal computer, a power distribution cabinet, an electric appliance cabinet and a relay, the parts are used for supplying power to the test device and realizing connection among electric appliances, and the normal operation of the test device is guaranteed.
To sum up, this embodiment provides a differential lock cylinder wear test device, and it can simulate the actual operating condition of cylinder 100 that awaits measuring to obtain the cylinder wear characteristic that is close to reality, do benefit to the design of differential lock. On the whole, when the differential lock cylinder abrasion test device is used for testing, the whole vehicle test is not needed, the test period is short, the test condition is stable and controllable, the test cost is low, and the differential lock cylinder abrasion test device has good economical efficiency.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.
Claims (10)
1. The utility model provides a differential lock cylinder wear test device for the wear characteristic of the cylinder (100) that awaits measuring of test, the cylinder (100) that awaits measuring includes cylinder body (101) and piston (102), piston (102) with cylinder body (101) cooperation forms compression chamber (103), its characterized in that, differential lock cylinder wear test device includes:
the differential lock gear sleeve (1) comprises a movable gear sleeve (11) and a fixed gear sleeve (12) which are oppositely arranged;
the output end of the rotary driving mechanism (2) is provided with a transmission shaft (27), the transmission shaft (27) is in transmission connection with the movable gear sleeve (11) to drive the movable gear sleeve (11) to rotate, and the transmission shaft (27) is also in sliding connection with the movable gear sleeve (11);
the air outlet end of the air supply mechanism (3) is communicated with the compression chamber (103) to supply air into the compression chamber (103);
the shifting fork mechanism (4) comprises a shifting fork (42), one side of the piston (102) deviating from the compression chamber (103) is connected with the movable gear sleeve (11) in a transmission mode through the shifting fork (42) to drive the movable gear sleeve (11) to move along the transmission shaft (27) and the movable gear sleeve (11) in a relative sliding direction, so that the movable gear sleeve (11) and the fixed gear sleeve (12) are meshed with each other or separated from each other.
2. A differential lock cylinder wear test device according to claim 1, characterized in that the drive shaft (27) is provided as an axle shaft, one end of which is provided with a flange (271) and the other end of which is provided with splines;
the rotary driving mechanism (2) further comprises a driving motor (22), an output shaft of the driving motor (22) is in transmission connection with the half shaft through the flange plate (271), and the half shaft is in sliding transmission connection with the movable gear sleeve (11) through the spline.
3. A differential lock cylinder wear test device according to claim 2, characterized in that the rotary drive mechanism (2) further comprises a coupling (23), an intermediate shaft (24), a bearing block (25) and a transition piece (26);
the output shaft of the driving motor (22) is connected with one end of the intermediate shaft (24) through the coupler (23), the other end of the intermediate shaft (24) is connected with the flange plate (271) through the transition connecting piece (26), and the bearing seat (25) is sleeved on the intermediate shaft (24) and is positioned between two ends of the intermediate shaft (24).
4. A differential lock cylinder wear test device according to claim 2, characterized in that the differential lock cylinder wear test device further comprises a rotation speed sensor (6), the rotation speed sensor (6) being configured to detect an output rotation speed of the drive motor (22).
5. A differential lock cylinder wear test device according to claim 4, characterized in that the rotation speed sensor (6) is in communication connection with the drive motor (22) to control the drive motor (22) to adjust the output rotation speed.
6. A differential lock cylinder wear test device according to claim 1, characterized in that the air supply mechanism (3) comprises an air source (31) and an air servo valve (32), and the air outlet end of the air source (31) is communicated with the compression chamber (103) through the air servo valve (32).
7. A differential lock cylinder wear test device according to claim 1, characterized in that the moving gear sleeve (11) is provided with a ring groove (111) along the circumferential direction;
one end of the shifting fork (42) is connected with one side, deviating from the compression chamber (103), of the piston (102), and the other end of the shifting fork (42) is sleeved on the annular groove (111) and is in clearance fit with the bottom wall of the annular groove (111).
8. A differential lock cylinder wear test device according to claim 1, characterized in that it further comprises a retarder housing (5), said retarder housing (5) being mounted on the side of the fork (42) facing away from the piston (102);
shifting fork mechanism (4) still include declutch shift shaft (41) and fork return spring (43), the dress is worn in declutch shift shaft (41) on shift fork (42), the one end of declutch shift shaft (41) with piston (102) fixed connection, the other end of declutch shift shaft (41) is followed the moving direction sliding connection of shift fork (42) in reduction gear casing (5), fork return spring (43) are installed in reduction gear casing (5), just the both ends of fork return spring (43) respectively with reduction gear casing (5) with shift fork (42) butt.
9. A differential lock cylinder wear test device according to any one of claims 1-8, characterized in that the differential lock cylinder wear test device further comprises a cooling fan (9), the cooling fan (9) is arranged outside the cylinder (100) to be tested, and an air outlet of the cooling fan (9) is arranged towards the cylinder (100) to be tested.
10. A differential lock cylinder wear test device according to claim 9, characterized in that the differential lock cylinder wear test device further comprises a temperature sensor (7), the temperature sensor (7) being configured to detect the temperature of the cylinder (100) under test;
the temperature sensor (7) is also in communication connection with the cooling fan (9) to control the opening and closing of the cooling fan (9) and adjust the running speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110220623.XA CN113029535B (en) | 2021-02-26 | 2021-02-26 | Differential lock cylinder wear test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110220623.XA CN113029535B (en) | 2021-02-26 | 2021-02-26 | Differential lock cylinder wear test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113029535A true CN113029535A (en) | 2021-06-25 |
| CN113029535B CN113029535B (en) | 2022-09-20 |
Family
ID=76462129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110220623.XA Active CN113029535B (en) | 2021-02-26 | 2021-02-26 | Differential lock cylinder wear test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113029535B (en) |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001153076A (en) * | 1999-09-09 | 2001-06-05 | Sanyo Electric Co Ltd | Two-stage compression rotary compressor |
| US6327935B1 (en) * | 1997-04-30 | 2001-12-11 | Borgwarner Inc. | Dual clutch rear axle and method of operation |
| CN200960856Y (en) * | 2006-10-24 | 2007-10-17 | 青特集团有限公司 | Differential speed lock between wheels for STR axle |
| CN101949443A (en) * | 2010-09-26 | 2011-01-19 | 青特集团有限公司 | Integrally combined differential lock |
| DE102012019276A1 (en) * | 2012-09-26 | 2014-03-27 | Oliver Schlötzer | Differential reverse gear for use in e.g. motor vehicle, has coaxial differential gear used for switching rotational direction, and support basket or transmission wheels of differential alternately locked |
| CN204200996U (en) * | 2014-09-19 | 2015-03-11 | 中国第一汽车股份有限公司 | A kind of novel pair of screw thread differential lock air cylinder structure |
| CN204716914U (en) * | 2015-04-16 | 2015-10-21 | 方盛车桥（柳州）有限公司 | With the main gearbox assembly of differential lock pressure switch |
| CN205089932U (en) * | 2015-11-11 | 2016-03-16 | 泸州开士乐工程技术有限责任公司 | Integral betweencenters differential lock |
| CN106678329A (en) * | 2016-12-29 | 2017-05-17 | 中国北方车辆研究所 | Sleeve shaft type differential locking mechanism |
| CN207261605U (en) * | 2017-10-10 | 2018-04-20 | 陕西汉德车桥有限公司 | A kind of differential lock assembly and the vehicle with the differential lock assembly |
| CN109185418A (en) * | 2018-11-22 | 2019-01-11 | 浙江金道科技股份有限公司 | A kind of fork type differential mechanism with differential lock |
| CN208778388U (en) * | 2018-09-30 | 2019-04-23 | 浙江希安冀汽车零部件有限公司 | A kind of differential lock cylinder |
| CN110043627A (en) * | 2019-04-19 | 2019-07-23 | 一汽解放汽车有限公司 | A kind of differential lock of diaphragm structure |
| CN209372420U (en) * | 2019-01-16 | 2019-09-10 | 一汽解放汽车有限公司 | A kind of test device for the test of automotive transmission zero load loss of machine of torque |
| US20190301582A1 (en) * | 2018-03-30 | 2019-10-03 | Jtekt Corporation | Drive force distribution apparatus |
| CN110907199A (en) * | 2019-12-31 | 2020-03-24 | 一汽解放汽车有限公司 | Impact durability test bed and bench test method for differential lock between wheels of drive axle |
| CN210603934U (en) * | 2019-10-29 | 2020-05-22 | 一汽解放汽车有限公司 | Static torsion test device for differential lock |
-
2021
- 2021-02-26 CN CN202110220623.XA patent/CN113029535B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6327935B1 (en) * | 1997-04-30 | 2001-12-11 | Borgwarner Inc. | Dual clutch rear axle and method of operation |
| JP2001153076A (en) * | 1999-09-09 | 2001-06-05 | Sanyo Electric Co Ltd | Two-stage compression rotary compressor |
| CN200960856Y (en) * | 2006-10-24 | 2007-10-17 | 青特集团有限公司 | Differential speed lock between wheels for STR axle |
| CN101949443A (en) * | 2010-09-26 | 2011-01-19 | 青特集团有限公司 | Integrally combined differential lock |
| DE102012019276A1 (en) * | 2012-09-26 | 2014-03-27 | Oliver Schlötzer | Differential reverse gear for use in e.g. motor vehicle, has coaxial differential gear used for switching rotational direction, and support basket or transmission wheels of differential alternately locked |
| CN204200996U (en) * | 2014-09-19 | 2015-03-11 | 中国第一汽车股份有限公司 | A kind of novel pair of screw thread differential lock air cylinder structure |
| CN204716914U (en) * | 2015-04-16 | 2015-10-21 | 方盛车桥（柳州）有限公司 | With the main gearbox assembly of differential lock pressure switch |
| CN205089932U (en) * | 2015-11-11 | 2016-03-16 | 泸州开士乐工程技术有限责任公司 | Integral betweencenters differential lock |
| CN106678329A (en) * | 2016-12-29 | 2017-05-17 | 中国北方车辆研究所 | Sleeve shaft type differential locking mechanism |
| CN207261605U (en) * | 2017-10-10 | 2018-04-20 | 陕西汉德车桥有限公司 | A kind of differential lock assembly and the vehicle with the differential lock assembly |
| US20190301582A1 (en) * | 2018-03-30 | 2019-10-03 | Jtekt Corporation | Drive force distribution apparatus |
| CN208778388U (en) * | 2018-09-30 | 2019-04-23 | 浙江希安冀汽车零部件有限公司 | A kind of differential lock cylinder |
| CN109185418A (en) * | 2018-11-22 | 2019-01-11 | 浙江金道科技股份有限公司 | A kind of fork type differential mechanism with differential lock |
| CN209372420U (en) * | 2019-01-16 | 2019-09-10 | 一汽解放汽车有限公司 | A kind of test device for the test of automotive transmission zero load loss of machine of torque |
| CN110043627A (en) * | 2019-04-19 | 2019-07-23 | 一汽解放汽车有限公司 | A kind of differential lock of diaphragm structure |
| CN210603934U (en) * | 2019-10-29 | 2020-05-22 | 一汽解放汽车有限公司 | Static torsion test device for differential lock |
| CN110907199A (en) * | 2019-12-31 | 2020-03-24 | 一汽解放汽车有限公司 | Impact durability test bed and bench test method for differential lock between wheels of drive axle |
Non-Patent Citations (1)
| Title |
|---|
| 张瑶艳，丁军雄: "《差速锁气缸加工工艺的改进》", 《科技展望》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113029535B (en) | 2022-09-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110530634B (en) | Test bed system for vehicle wet-type double-clutch automatic transmission | |
| CN102269678A (en) | Testing device for temperature measurement of wet multi-plate clutch friction steel disc | |
| CN202914593U (en) | Control system of electronic control hydraulic retarder | |
| US6575283B2 (en) | Actuation device for a friction clutch | |
| CN103674563B (en) | A kind of integration test method for car load Energy Flow Analysis | |
| CN202141657U (en) | Tester for detecting temperature generated by friction of vehicle wet-type multiple disc clutch and steel sheet | |
| CN108705805A (en) | Mechanical press clutch temperature rises automatic measurement and control device | |
| US11512752B2 (en) | Clutch actuating arrangement | |
| CN113029535B (en) | Differential lock cylinder wear test device | |
| CN201696341U (en) | Mechanical sealing device | |
| CN107063668B (en) | A kind of dry gas seals experimental system suitable for multi-state | |
| CN111157188A (en) | Floating ring seal universal tester and detection system | |
| KR20080065862A (en) | Performance testing system of seal ring for automatic transmission | |
| CN116698399A (en) | Wet friction pair test device capable of realizing multi-station test | |
| CN112096857B (en) | High-integration-level electric control mechanical automatic transmission | |
| CN113685257B (en) | Control device for water circulation of automobile engine | |
| CN216695569U (en) | K0 clutch assembly's test fixture | |
| CN214224545U (en) | High-temperature working state test system for fuel test piece | |
| CN211206116U (en) | Wear test device for friction pair | |
| CN204287143U (en) | Water seal durability testing device | |
| CN113008480B (en) | Comprehensive performance test device for differential lock control mechanism | |
| CN208268052U (en) | Air compressor performance test system | |
| CN201896678U (en) | Forklift liquefied gas engine with electromagnetic type sensor bracket | |
| CN213902773U (en) | Dynamic sealing ring test module | |
| CN114813168A (en) | Dynamic hydraulic circulation endurance test measuring device for wet clutch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |