CN106404365A - Tension machine tail vehicle test device - Google Patents
Tension machine tail vehicle test device Download PDFInfo
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- CN106404365A CN106404365A CN201610780785.8A CN201610780785A CN106404365A CN 106404365 A CN106404365 A CN 106404365A CN 201610780785 A CN201610780785 A CN 201610780785A CN 106404365 A CN106404365 A CN 106404365A
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- 238000012360 testing method Methods 0.000 title claims abstract description 61
- 238000003825 pressing Methods 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000003068 static effect Effects 0.000 description 12
- 238000013461 design Methods 0.000 description 8
- 238000010276 construction Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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- 230000000694 effects Effects 0.000 description 1
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Classifications
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- 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
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides a tension machine tail vehicle test device. The device comprises a supporting device which is used for supporting the two ends of the bearing shaft in a tension machine tail vehicle; a loading device which is detachably connected with the bearing shaft and used for applying pressure to the bearing shaft; and a pressure test device which is arranged on the loading device and used for detecting the pressure borne by the bearing shaft. The pressure is applied to the bearing shaft through the loading device, the deformation situation of the bearing shaft is detected when the allowable load of the bearing shaft is reached, and then whether the strength of the bearing shaft meets the requirements is judged according to the deformation situation of the bearing shaft so that accurate selection of the bearing shaft can be ensured, the selected bearing shaft is enabled to meet the performance requirements of the tension machine tail vehicle, the safety coefficient is high, the model section accuracy of the bearing shaft can be enhanced, the situation that the selected bearing shaft has excessive strength can be avoided and weight and cost of the tension machine tail vehicle can be reduced.
Description
Technical Field
The invention relates to the technical field of power transmission line construction tools, in particular to a test device for a tension machine tail car.
Background
With the rapid development of economy in China, the electric load is rapidly increased, and the erection of power transmission line engineering is increased. Tension stringing construction is an important link in power transmission line engineering, a tension machine tail car for an overhead power transmission line is one of main machines and tools necessary for tension stringing construction, and the tension machine tail car has close relation with construction of paying off, tightening and the like, so that the bearing capacity of the tension machine tail car is guaranteed to be the basis for smooth tension paying off.
In order to ensure stable supply of electric power, the requirements of construction equipment for tension stringing have been gradually increased. The bearing shaft of the tension machine tail car is an important construction part of the tension machine tail car, and the strength and the bearing capacity of the bearing shaft are important indexes influencing the performance of the tension machine tail car and are key factors for selecting and matching a proper bearing shaft. Generally, the type selection of the bearing shaft of the tail car of the tension machine is based on engineering experience, so that the strength and the bearing capacity of the selected bearing shaft are high, the safety coefficient is high, the size of the bearing shaft is large, and the weight and the cost of the tail car of the tension machine are greatly increased. If the model selection of the bearing shaft is reasonable in theory by adopting statics calculation based on the principle of material mechanics, the influence of fatigue stress generated by long-term operation of the bearing shaft is ignored, so that the fatigue strength and the bearing capacity of the bearing shaft cannot meet the requirements, and further the model selection of the bearing shaft is inaccurate.
Disclosure of Invention
In view of the above, the invention provides a test device for a tail car of a tension machine, and aims to solve the problem that the type selection of a bearing shaft of the tail car of the tension machine in the prior art is not accurate.
The invention provides a test device for a tensioner tail car, which comprises: the supporting device is used for supporting two ends of a bearing shaft in the tail car of the tension machine; the loading device is detachably connected to the bearing shaft and is used for applying pressure to the bearing shaft; and the pressure testing device is arranged on the loading device and used for detecting the pressure born by the bearing shaft.
Further, in the test apparatus for a tail car of a tension machine, the supporting device includes: a base and two supports; the first ends of the two support bodies are connected to the base, and a preset distance is reserved between the two support bodies; the two ends of the bearing shaft are respectively rotatably and detachably connected with the second ends of the two supporting bodies.
Further, in the test apparatus for a tail car of a tension machine, the loading device includes: the force applying device comprises a force applying device, a first connecting rod and a second connecting rod; the first connecting rod and the force applying device are respectively arranged at two sides of the bearing shaft, the second connecting rod is arranged above the bearing shaft, the second connecting rod is provided with a connecting part, and the bearing shaft can be slidably arranged in the connecting part in a penetrating way; the first end of the first connecting rod is connected with the base, the second end of the first connecting rod is hinged with the first end of the second connecting rod, the second end of the second connecting rod is hinged with the loading end of the force applying device, and the supporting seat of the force applying device is connected with the base; the pressure testing device is arranged on the first connecting rod.
Furthermore, in the test device of the tail car of the tension machine, the connecting part is an arc-shaped connecting part.
Further, in the test apparatus for the tail car of the tension machine, the loading apparatus further includes: a bearing; wherein, the bearing is worn to locate by the bearing to, the bearing is worn to locate the connecting portion of second connecting rod.
Further, the test device of the tail car of the tension machine further comprises: and the driving motor is connected to the bearing shaft and used for driving the bearing shaft to rotate.
Further, in the test device of the tail car of the tension machine, the first end of the first connecting rod is slidably connected with the base, and the supporting seat of the force applying device is slidably connected with the base.
Furthermore, in the test device of the tail car of the tension machine, the base is provided with two slide rails parallel to the bearing shaft, and the two slide rails are respectively connected with the first end of the first connecting rod and the supporting seat of the force applying device in a sliding manner; the slide rail that is connected with the first end of head rod is provided with anti-disengaging mechanism, and anti-disengaging mechanism is used for preventing the first end of head rod from breaking away from the slide rail when head rod upward movement.
Furthermore, in the test device of the tail car of the tension machine, two loading devices are arranged in parallel along the axial direction of the bearing shaft.
According to the invention, the loading device is used for applying pressure to the bearing shaft, the deformation condition of the bearing shaft is detected when the allowable load of the bearing shaft is reached, and whether the strength of the bearing shaft meets the requirement or not is judged according to the deformation condition of the bearing shaft, so that the bearing shaft is ensured to be accurately selected and matched, the selected bearing shaft can meet the performance requirement of the tail car of the tension machine, the safety coefficient is high, the accuracy of type selection of the bearing shaft is improved, the problem of inaccurate type selection of the bearing shaft of the tail car of the tension machine in the prior art is solved, the excessive strength of the selected bearing shaft is avoided, and the weight and the cost of the tail car of the tension machine are effectively reduced.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural diagram of a test device of a tensioner tail car provided in an embodiment of the invention;
fig. 2 is a schematic front view of a testing device of a tensioner tail car provided in an embodiment of the present invention;
fig. 3 is a schematic cross-sectional view of a-a of fig. 2.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1 to 3, a preferred structure of a test device of a tension tail car provided by an embodiment of the invention is shown. As shown in the figure, the test device of the tensioner tail car comprises: the device comprises a supporting device 1, a loading device 2 and a pressure testing device 3. The supporting device 1 is used for supporting two ends of a bearing shaft 4 in the tail car of the tension machine, and the supporting device 1 and the bearing shaft 4 are rotatably and detachably connected. The loading means 2 is detachably connected to the carrier shaft 4, the loading means 2 being adapted to apply a pressure on the carrier shaft 4. The pressure testing device 3 is disposed on the loading device 2, and the pressure testing device 3 is used for detecting the pressure borne by the bearing shaft 4. In particular, the loading device 2 and the carrying shaft 4 may be rotatably connected, i.e. the loading device 2 applies pressure to the carrying shaft 4, but the loading device 2 does not limit the rotation of the carrying shaft 4. During actual construction, the bearing shaft 4 penetrates through a wire coil in the tail car of the tension machine, and the wire coil applies pressure to the bearing shaft 4. The loading device 2 simulates the actual working condition that the wire coil applies pressure to the bearing shaft 4.
In specific implementation, the testing device can test the bearing shaft 4 in a static state, and test whether the static strength of the bearing shaft 4 meets the preset requirement; the testing device can also test the bearing shaft 4 in a rotating state, and test whether the fatigue strength of the bearing shaft 4 meets the preset requirement. In specific implementation, the preset requirement of the static strength and the preset requirement of the fatigue strength of each bearing shaft 4 can be found out according to relevant regulations.
During the test, both ends of bearing shaft 4 are all connected with strutting arrangement 1. Each load bearing shaft 4 has a design allowable load and a design allowable fatigue load. When the bearing shaft 4 is in a static state, the loading device 2 continuously applies pressure to the bearing shaft 4 according to the design allowable load until the pressure value detected by the pressure testing device 3 reaches the design allowable load, and the deformation condition of the bearing shaft 4 is detected. If the bearing shaft 4 is not deformed, it indicates that the static strength of the bearing shaft 4 meets the preset requirement. If the bearing shaft 4 is deformed, the static strength of the bearing shaft 4 does not meet the preset requirement. When the bearing shaft 4 is in a rotating state, the loading device 2 continuously applies pressure to the bearing shaft 4 according to the design allowable fatigue load until the design allowable fatigue load is reached, and then the bearing shaft 4 is kept rotating for a preset time to detect the deformation condition of the bearing shaft 4. If the bearing shaft 4 is not deformed, the fatigue strength of the bearing shaft meets the preset requirement. If the bearing shaft 4 is deformed, the fatigue strength of the bearing shaft 4 does not satisfy the predetermined requirement. In specific implementation, the preset time may be determined according to actual conditions, and this embodiment does not limit this.
In specific implementation, the model selection process of the bearing shaft 4 is as follows: firstly, selecting a bearing shaft 4 with one size by adopting statics calculation, then testing the selected bearing shaft 4 by a testing device, judging whether the static strength and the fatigue strength of the bearing shaft 4 can meet preset requirements, and when the preset requirements are met, successfully selecting the type of the bearing shaft 4; and when the preset requirement is not met, the type selection of the bearing shaft 4 fails, the bearing shaft 4 with another size is selected again according to the statics calculation, and the process is repeated until the type selection of the bearing shaft 4 is successful. It should be noted that the bearing shaft 4 can only be used if both the static strength and the fatigue strength of the bearing shaft 4 meet the preset requirements, that is, the type selection of the bearing shaft 4 is successful. As long as one of the static strength and the fatigue strength of the bearing shaft 4 does not meet the preset requirements, the bearing shaft 4 cannot be used, i.e. the model selection of the bearing shaft 4 fails.
It can be seen that, in this embodiment, the loading device 2 applies pressure to the bearing shaft 4, and detects the deformation condition of the bearing shaft 4 when the allowable load of the bearing shaft 4 is reached, and then judges whether the strength of the bearing shaft meets the requirement according to the deformation condition of the bearing shaft, so as to ensure that the bearing shaft 4 is accurately selected, so that the selected bearing shaft 4 can meet the performance requirement of the tension tail car, the safety coefficient is high, the accuracy of type selection of the bearing shaft 4 is improved, the problem of inaccurate type selection of the bearing shaft of the tension tail car in the prior art is solved, the strength of the selected bearing shaft is avoided being too high, and the weight and the cost of the tension tail car are effectively reduced.
Referring to fig. 1 to 3, in the above embodiment, the supporting device 1 may include: a base 11 and two supports 12. Wherein, the first ends (the lower ends shown in fig. 1) of the two supporting bodies 12 are both connected to the base 11, and a preset distance is provided between the two supporting bodies 12. Both ends of the bearing shaft 4 are rotatably and detachably connected to second ends (upper ends shown in fig. 1) of the two supporting bodies 12, respectively. Specifically, the two supports 12 are disposed perpendicular to the base 11, the two supports 12 are disposed above the base 11 (with respect to fig. 1), and the two supports 12 have a preset height. The second end of every supporter 12 all is provided with the bearing frame, is provided with the bearing in the bearing frame, and one of them one end of bearing shaft 4 is connected with the bearing of one of them supporter 12 second end, and the other end of bearing shaft 4 is connected with the bearing of another supporter 12 second end to the both ends that make bearing shaft 4 and the second end of two supporters 12 all can rotate and can dismantle the connection.
It should be noted that, in practical implementation, the preset distance between the two supporting bodies 12 may be set according to practical situations, and this embodiment does not set any limitation. The preset height can be set according to actual conditions, and the embodiment does not limit the preset height.
It can be seen that, in this embodiment, the two ends of the bearing shaft 4 are detachably connected and rotatable with the second ends of the two supporting bodies 12, so that the bearing shaft 4 is supported by the supporting device 1, the bearing shaft 4 is convenient to detach and mount, and the structure is simple.
Referring to fig. 1 to 3, in the above embodiments, the loading device 2 may include: a force applying means 21, a first connecting rod 22 and a second connecting rod 23. The first connecting rod 22 and the force applying device 21 are respectively disposed on two sides (left and right sides in fig. 1) of the bearing shaft 4, and the second connecting rod 23 is disposed above the bearing shaft 4 (with respect to fig. 1). The second connecting rod 23 is provided with a connecting portion through which the carrier shaft 4 is slidably disposed.
Specifically, the connecting portion may be a sleeve, an inner wall surface of the sleeve is smoothly arranged, and the bearing shaft 4 is inserted through the sleeve, so that the bearing shaft 4 and the sleeve can slide relatively. The connecting portion may also be an arc-shaped connecting portion 231, that is, the arc-shaped connecting portion 231 is an arc-shaped protrusion provided on the second connecting rod 23, the arc-shaped protrusion is arched upwards (with respect to fig. 1), and an inner wall surface of the arc-shaped connecting portion 231 is smoothly provided so that the bearing shaft 4 and the arc-shaped connecting portion 231 can slide relatively. Preferably, the connection portion is an arc-shaped connection portion 231. More preferably, the arc of the arc-shaped connecting portion 231 matches the outer diameter of the bearing shaft 4.
A first end (a lower end shown in fig. 1) of the first connecting rod 22 is connected to the base 11, and a second end (an upper end shown in fig. 1) of the first connecting rod 22 is hinged to a first end (a left end shown in fig. 1) of the second connecting rod 23. The second end (right end in fig. 1) of the second connecting rod 23 is hinged to the loading end (upper end in fig. 1) of the force applying device 21, and the support base (lower end in fig. 1) of the force applying device 21 is connected to the base 11. The pressure testing device 3 is arranged on the first connecting rod 22. Specifically, the second end of the first connecting rod 22 is hinged and detachably connected to the first end of the second connecting rod 23, and the second end of the second connecting rod 23 is hinged and detachably connected to the loading end of the force applying device 21. Preferably, the force applying means 21 may be a hydraulic cylinder.
In specific implementation, a through hole is formed at a first end of the second connecting rod 23, the through hole is formed along a thickness direction (vertical direction shown in fig. 1) of the second connecting rod 23, and a second end of the first connecting rod 22 penetrates through the through hole and is connected with the second connecting rod 23 through a bolt. The second end of the second connecting rod 23 is provided with a through hole which is arranged along the thickness direction (the vertical direction shown in fig. 1) of the second connecting rod 23, and the loading end of the force applying device 21 is inserted into the through hole and connected with the second connecting rod 23 through a bolt.
During the test, the force applying device 21 gradually applies a force, and the second end of the second connecting rod 23 is subjected to a downward pulling force, so that the first end of the second connecting rod 23 tends to move upward, but because the first end of the second connecting rod 23 is connected with the base 11 through the first connecting rod 22, the first end of the second connecting rod 23 is limited, so that the first end of the second connecting rod 23 is also subjected to a downward force, and the first end of the second connecting rod 23 transmits the received force to the first connecting rod 22, so that the bearing shaft 4 is subjected to the pressure applied by the second connecting rod 23. The pressure testing device 3 detects the force of the first connecting rod 22, i.e. the pressure testing device 3 detects the force applied to the first end of the second connecting rod 23, which is equal to the force applied to the second end of the second connecting rod 23 by the force applying device 21 and is equal to 1/2 of the pressure applied to the bearing shaft 4, then the pressure applied to the bearing shaft 4 is equal to twice the force of the first connecting rod 22 detected by the pressure testing device 3.
It can be seen that, in this embodiment, exert force to one side of bearing axle 4 through power application device 21, confirm the power that bearing axle 4 actually bore according to the power that pressure test device 3 detected again, be convenient for control the atress of bearing axle 4, and then detect the deformation condition of bearing axle 4 better, and, because the both ends of bearing axle 4 and the second end of two supporters 12 are detachable connection, so be convenient for change bearing axle 4, can test the bearing axle of different diameters, and then improved the degree of accuracy of bearing axle 4 test, because the both ends of second connecting rod 23 are connected with head rod 22 and power application device 21 are articulated respectively, so can change second connecting rod 23 according to the change of bearing axle 4 diameter, ensure this testing arrangement's steady operation, moreover, the steam generator is simple in structure.
Referring to fig. 1 to 3, in the above embodiment, the loading device 2 may further include: and a bearing 24. Wherein, the bearing shaft 4 is inserted in the bearing 24, and the bearing 24 is inserted in the connecting portion of the second connecting rod 23. Since the two ends of the bearing shaft 4 are rotatably and detachably connected to the supporting body 12, the bearing 24 is disposed through the connecting portion, the bearing shaft 4 is disposed through the bearing 24, and the bearing shaft 4 can rotate relative to the connecting portion. When the connecting portion is the arc-shaped connecting portion 231, the bearing shaft 4 is inserted into the bearing 24, and the arc-shaped connecting portion 231 of the second connecting rod 23 is correspondingly placed above the bearing 24 and contacts with the bearing 24. In a specific implementation, the bearing 24 is provided with a bearing seat, and the bearing seat is arranged at the connecting part of the second connecting rod 23 in a penetrating way.
The loading device 2 may further include: the motor is driven. Wherein, a driving motor is connected to the bearing shaft 4, and the driving motor is used for driving the bearing shaft 4 to rotate. In particular, the drive motor may be connected to the carrier shaft 4 by means of a coupling or a belt or a gear. Because the bearing shaft 4 is arranged through the bearing 24, and the bearing 24 is arranged through the connecting portion of the second connecting rod 23, and because the two ends of the bearing shaft 4 are also connected with the second ends of the two supporting bodies 12 through the bearing, that is, the two ends of the bearing shaft 4 are rotatably connected with the second ends of the two supporting bodies 12, the driving motor can provide power for the bearing shaft 4, so that the bearing shaft 4 can rotate.
During the test, the driving motor provides power for the bearing shaft 4, and because the two ends of the bearing shaft 4 are connected with the second ends of the two supporting bodies 12 through the bearings, and the bearing shaft 4 is connected with the connecting part of the second connecting rod 23 through the bearing 24, even if the bearing shaft 4 is subjected to the force applied by the force applying device 21, the bearing shaft 4 can also rotate under the driving of the driving motor. The loading device 2 continuously applies pressure to the bearing shaft 4 according to the design allowable fatigue load until the pressure value detected by the pressure testing device 3 reaches the design allowable fatigue load, and at this time, the bearing shaft 4 is kept rotating for a preset time to detect the deformation condition of the bearing shaft 4. If the bearing shaft 4 is not deformed, the fatigue strength of the bearing shaft 4 meets the preset requirement, which means that the bearing capacity of the bearing shaft 4 meets the requirement. If the bearing shaft 4 is deformed, the fatigue strength of the bearing shaft 4 does not meet the preset requirement, which means that the bearing capacity of the bearing shaft 4 is small and the bearing shaft 4 cannot be used.
It can be seen that, in this embodiment, by providing the bearing 24, when the force applying device 21 applies a force to the bearing shaft 4 so that the bearing shaft 4 is under pressure, the bearing shaft 4 can also rotate, thereby implementing a fatigue strength test on the bearing shaft 4, and ensuring successful model selection of the bearing shaft 4 according to whether the fatigue strength of the bearing shaft 4 meets a preset requirement, so as to improve the accuracy of model selection of the bearing shaft 4.
In the above embodiments, the first end of the first connecting rod 22 is slidably connected to the base 11, and the supporting seat of the force applying device 21 is slidably connected to the base 11. In the actual motion operating mode, bear the weight of the wire dish in axle 4 wears to locate the tensioner tail car, the model of wire dish is different just also, the size of wire dish is just also different, the wire dish is just also different just to the effect point of the pressure that bears the weight of axle 4 and is exerted just like this, therefore, the first end through head rod 22 and the supporting seat of power application device 21 all with base 11 sliding connection, make power application device 21 can exert pressure to the different positions that bear axle 4, so that the intensity of the different positions department that the test device can test and bear the weight of the axle, can simulate the wire dish of different models to the actual application of force condition that bears axle 4, thereby ensure that the lectotype of bearing axle 4 is accurate.
Referring to fig. 1 to fig. 3, in the above embodiment, the base 11 is provided with two sliding rails 111, and both the two sliding rails 111 are parallel to the bearing shaft 4 and disposed at two sides of the bearing shaft 4. The two slide rails 111 are slidably connected to the first end of the first connecting rod 22 and the supporting seat of the force applying device 21, respectively, that is, one of the slide rails 111 is slidably connected to the first end of the first connecting rod 22, and the other slide rail 111 is slidably connected to the supporting seat of the force applying device 21.
Specifically, the loading device 2 may further include: two sliders 25. Wherein, the two sliding blocks 25, the two sliding rails 111, the first end of the first connecting rod 22 and the supporting seat of the force applying device 21 are all arranged in a one-to-one correspondence. That is, one of the sliders 25 is connected to a first end of the first connecting rod 22, and the slider 25 is disposed in one of the sliding rails 111; the other slide 25 is connected to the support of the force application device 21, which slide 25 is arranged in the other slide rail 111.
The sliding rail 111 connected to the first end of the first connecting rod 22 is provided with an anti-slip mechanism for preventing the first end of the first connecting rod 22 from being separated from the sliding rail 111 when the first connecting rod 22 moves upwards to ensure that the first connecting rod 22 is connected to the base 11 through the sliding rail 111, that is, when the force applying device 21 applies a force, the second end of the second connecting rod 23 is pulled downwards, the first end of the second connecting rod 23 tends to move upwards, and since the first end of the second connecting rod 23 is connected to the first connecting rod 22, the first connecting rod 22 moves upwards, and the anti-slip mechanism prevents the first connecting rod 22 from moving upwards to prevent the first connecting rod 22 from being separated from the sliding rail. Specifically, the anti-slip mechanism may configure the slide rail 111 as a T-shaped slide rail 111, and correspondingly, the slider 25 connected to the first end of the first connecting rod 22 is configured as a T-shaped slider. The anti-slip mechanism may further include a dovetail-shaped slide rail 111 as the slide rail 111, and accordingly, the slide block 25 connected to the first end of the first connecting rod 22 is a dovetail-shaped slide block.
In specific implementation, the slide rail 111 connected to the support base of the force applying device 21 may be provided with a retaining mechanism. The anti-slip mechanism may be configured such that the slide rail 111 is a T-shaped slide rail 111, and the slider 25 connected to the support base of the force applying device 21 is a T-shaped slider.
It can be seen that, in this embodiment, two slide rails 111 are provided through the base 11, so that the loading device 2 can slide, thereby realizing the test of the strength of the bearing shaft 4 at different positions, and further ensuring the accuracy of the model selection of the bearing shaft 4.
Referring to fig. 1 to 3, in each of the above embodiments, there may be two loading devices 2, and the two loading devices 2 are arranged side by side along the axial direction of the bearing shaft 4. Specifically, the force applying devices 21 in the two loading devices 2 may be disposed on one side of the bearing shaft 4, and may also be disposed on both sides of the bearing shaft 4.
It can be seen that, in this embodiment, through setting up two loading devices 2, can simulate the operating condition of tensioner tail car, can test the intensity and the fatigue strength that bear axle 4 better, simple structure, the implementation of being convenient for.
In summary, in this embodiment, the loading device 2 applies pressure to the bearing shaft 4, and detects the deformation condition of the bearing shaft 4 when the allowable load of the bearing shaft 4 is reached, and then determines whether the strength of the bearing shaft meets the requirement according to the deformation condition of the bearing shaft, so as to ensure that the bearing shaft 4 is accurately selected, so that the selected bearing shaft 4 can meet the performance requirement of the tension tail car, the safety coefficient is high, the accuracy of type selection of the bearing shaft 4 is improved, the problem of inaccurate type selection of the bearing shaft of the tension tail car in the prior art is solved, the strength of the selected bearing shaft is avoided being too high, and the weight and the cost of the tension tail car are effectively reduced.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. The utility model provides a test device of tensioner tail car which characterized in that includes:
the supporting device (1) is used for supporting two ends of a bearing shaft (4) in the tail car of the tension machine;
a loading device (2) detachably connected to the bearing shaft (4) for applying pressure to the bearing shaft (4);
and the pressure testing device (3) is arranged on the loading device (2) and is used for detecting the pressure born by the bearing shaft (4).
2. The test device of a tensioner tail car according to claim 1, characterized in that the support device (1) comprises: a base (11) and two supporting bodies (12); wherein,
the first ends of the two supporting bodies (12) are connected to the base (11), and a preset distance is reserved between the two supporting bodies (12);
two ends of the bearing shaft (4) are respectively connected with the second ends of the two supporting bodies (12) in a rotatable and detachable mode.
3. The test rig of a tensioner tail car according to claim 1, characterized in that the loading device (2) comprises: a force applying device (21), a first connecting rod (22) and a second connecting rod (23); wherein,
the first connecting rod (22) and the force applying device (21) are respectively arranged at two sides of the bearing shaft (4), the second connecting rod (23) is arranged above the bearing shaft (4), the second connecting rod (23) is provided with a connecting part, and the bearing shaft (4) is slidably arranged through the connecting part;
the first end of the first connecting rod (22) is connected with the base (11), the second end of the first connecting rod (22) is hinged with the first end of the second connecting rod (23), the second end of the second connecting rod (23) is hinged with the loading end of the force applying device (21), and the supporting seat of the force applying device (21) is connected with the base (11);
the pressure testing device (3) is arranged on the first connecting rod (22).
4. The test rig of a tensioner tail car as claimed in claim 3, wherein the connection is an arcuate connection (231).
5. The test rig of a tensioner tail car according to claim 3, characterized in that the loading device (2) further comprises: a bearing (24); wherein,
the bearing shaft (4) is arranged in the bearing (24) in a penetrating way, and the bearing (24) is arranged in a penetrating way at the connecting part of the second connecting rod (23).
6. The tensioner tail car test device of claim 5, further comprising:
and the driving motor is connected to the bearing shaft (4) and used for driving the bearing shaft (4) to rotate.
7. The load bearing shaft testing device according to claim 3, wherein a first end of said first connecting rod (22) is slidably connected to said base (11) and wherein a support seat of said force applying means (21) is slidably connected to said base (11).
8. The test rig of a tensioner tail car as set forth in claim 7,
the base (11) is provided with two sliding rails (111) parallel to the bearing shaft (4), and the two sliding rails (111) are respectively connected with the first end of the first connecting rod (22) and the supporting seat of the force applying device (21) in a sliding manner;
the slide rail (111) connected with the first end of the first connecting rod (22) is provided with an anti-falling mechanism, and the anti-falling mechanism is used for preventing the first end of the first connecting rod (22) from being separated from the slide rail when the first connecting rod (22) moves upwards.
9. The test rig of a tensioner tail pulley according to any one of claims 1 to 8, characterized in that the loading devices (2) are two, the two loading devices (2) being arranged side by side in the axial direction of the carrier shaft (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610780785.8A CN106404365B (en) | 2016-08-30 | 2016-08-30 | Test device of tensioner tail car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610780785.8A CN106404365B (en) | 2016-08-30 | 2016-08-30 | Test device of tensioner tail car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106404365A true CN106404365A (en) | 2017-02-15 |
| CN106404365B CN106404365B (en) | 2020-09-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610780785.8A Active CN106404365B (en) | 2016-08-30 | 2016-08-30 | Test device of tensioner tail car |
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| CN2760533Y (en) * | 2004-12-15 | 2006-02-22 | 比亚迪股份有限公司 | Rotary axis tester |
| CN101419105A (en) * | 2008-11-26 | 2009-04-29 | 中国矿业大学 | Shaft part force measuring device |
| CN204265103U (en) * | 2014-09-18 | 2015-04-15 | 国家电网公司 | Wire trailer device |
| CN204373906U (en) * | 2014-12-25 | 2015-06-03 | 昆明理工大学 | A kind of radial loading device of shaft element load test |
| CN204439355U (en) * | 2015-03-12 | 2015-07-01 | 中国矿业大学(北京) | A kind of rolling bearing radial force charger |
| CN204495558U (en) * | 2015-02-05 | 2015-07-22 | 昆明理工大学 | A kind of integral type radial loading device of shaft element |
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- 2016-08-30 CN CN201610780785.8A patent/CN106404365B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2760533Y (en) * | 2004-12-15 | 2006-02-22 | 比亚迪股份有限公司 | Rotary axis tester |
| CN101419105A (en) * | 2008-11-26 | 2009-04-29 | 中国矿业大学 | Shaft part force measuring device |
| CN204265103U (en) * | 2014-09-18 | 2015-04-15 | 国家电网公司 | Wire trailer device |
| CN204373906U (en) * | 2014-12-25 | 2015-06-03 | 昆明理工大学 | A kind of radial loading device of shaft element load test |
| CN204495558U (en) * | 2015-02-05 | 2015-07-22 | 昆明理工大学 | A kind of integral type radial loading device of shaft element |
| CN204439355U (en) * | 2015-03-12 | 2015-07-01 | 中国矿业大学(北京) | A kind of rolling bearing radial force charger |
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| CN106404365B (en) | 2020-09-11 |
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