CN110806331B - Vehicle-mounted jack test method - Google Patents
Vehicle-mounted jack test method Download PDFInfo
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- CN110806331B CN110806331B CN201911275759.XA CN201911275759A CN110806331B CN 110806331 B CN110806331 B CN 110806331B CN 201911275759 A CN201911275759 A CN 201911275759A CN 110806331 B CN110806331 B CN 110806331B
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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
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
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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
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/007—Subject matter not provided for in other groups of this subclass by applying a load, e.g. for resistance or wear testing
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- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention relates to a vehicle-mounted jack test method, which comprises the steps of pushing a chassis of a jack into a clamping groove on a storage sliding block, starting a power motor of a power mechanism to enable the storage sliding block to slide intermittently along a sliding groove of a workbench, and driving the jack on the storage sliding block to a rod end position of a rotating connecting rod; starting a driving motor to enable the supporting frame to move, and starting a horizontal motor to enable one end of the sleeve to move horizontally and abut against one end of a screw rod of the jack; starting a driving motor to rotate reversely so that the supporting roller is far away from the sleeve and retreats to the supporting cylinder; the method has the advantages that the pressure signals collected by the pressure sensors arranged on the pressure head, the height information of the tray and the torque signals collected by the torque sensors are transmitted into the computer to obtain the performance data of the jacks, the performance of the jacks can be tested, workers do not need to replace the jacks to be detected, and the actual labor intensity is reduced.
Description
Technical Field
The invention relates to the technical field of test equipment, in particular to a vehicle-mounted jack test method.
Background
The existing common vehicle-mounted jack is mostly a four-link jack structure, two hinged joints of the four-link jack are provided with screw rods, the other two hinged joints of the four-link jack are provided with a base and a tray, the tray is placed below the chassis, the tray is abutted to the lower side of a longitudinal beam on one side of the chassis, and the screw rods are screwed to ensure that the tray is lifted, so that one side of an automobile is lifted.
For vehicle-mounted jack production enterprises, when a jack is actually produced, quality inspection needs to be carried out on a batch of jacks, the pressure resistance of the jack needs to be inspected specifically, during specific testing, constant pressure is applied to a jack tray, a screw rod is screwed through a screwing mechanism to realize lifting operation on the tray, a data curve of the bearing pressure of the jack is obtained through a pressure sensor and a height sensor of the tray, whether the batch of jacks meet the strength requirement is judged through set test time, during the performance test detection of the jack, a single batch of jacks needs to be subjected to sampling inspection by 5 to 10 jacks to obtain the accuracy of data, and during the sampling inspection of a single jack, time which is close to half an hour is required, so that a worker needs to manually put a plurality of jacks on simple detection equipment in the prior art for detection, occupy other time of staff, cause very inconvenient when actual detection operation.
Disclosure of Invention
The invention aims to provide a vehicle-mounted jack test method, which can test the performance of a plurality of jacks without replacing the jack to be detected by a worker, and reduces the actual labor intensity.
The technical scheme adopted by the invention is as follows.
The vehicle-mounted jack test method comprises the following steps:
firstly, the tray of the jack is positioned at the lowest position, the chassis of the jack is pushed in from one end of the clamping groove on the object placing sliding block, the other side of the chassis of the jack is abutted against one side surface of the positioning baffle, and the clamping grooves of the object placing sliding block, which are positioned by the jacks, are fully arranged;
secondly, when the chassis of the jack is pushed into the clamping groove, one end of a screw rod of the jack is clamped in a material sliding channel between the two positioning slide rods on the workbench, if the screw rod of the jack cannot be clamped, the screw rod of the jack is adjusted until one end of the screw rod of the jack can be clamped between the two positioning slide rods;
thirdly, starting a power motor of the power mechanism to enable the object placing sliding block to intermittently slide along the sliding groove of the workbench, and enabling a jack on the object placing sliding block to be driven to the rod end position of the rotating connecting rod;
fourthly, starting a driving motor to enable the supporting frame to abut against the outer wall of the sleeve along the driving rod, the second universal joint, the steering connecting rod, the first universal joint and the sleeve by utilizing the supporting roller on the supporting frame, so that the sleeve is in a horizontal posture in the length direction;
fifthly, starting a horizontal motor to enable one end of the sleeve to move horizontally and abut against one end of a screw rod of the jack, starting a driving rod to rotate, and enabling one end of the screw rod of the jack to be in clamping fit with the sleeve accurately;
sixthly, starting a driving motor to rotate reversely, and enabling the supporting frame and the supporting roller to be far away from the sleeve and retreat to a supporting cylinder sleeved outside the driving rod;
seventhly, transmitting pressure signals acquired by a pressure sensor arranged on the pressure head, tray height information of the jack and torque signals acquired by a torque sensor arranged on the steering connecting rod into a computer for calculation to obtain performance data of the jack;
eighthly, starting a horizontal motor to rotate reversely, so that one end of the sleeve moves horizontally and is separated from one end of a screw rod of the jack;
and step nine, repeating the step three to the step eight until all the jacks are measured.
The invention also has the following features:
one end of the steering connecting rod is provided with a first universal joint, one end of the first universal joint is provided with a sleeve, and a sleeve cavity of the sleeve is connected with one end of a screw rod of the jack.
The other end of the steering connecting rod is provided with a second universal joint, one end of a driving rod at one end of the second universal joint is connected, and the rod end of the driving rod is connected with a driving mechanism.
The steering connecting rod is of a telescopic rod structure.
The pressure head is provided with a pressure sensor, the pressure sensor transmits a pressure signal of the pressure head to the computer, the upper end of the pressure head is connected with the driving air cylinder, and a piston rod of the driving air cylinder is vertically arranged.
Be provided with on the workstation and put the thing slider, it is provided with the draw-in groove that is used for the card to put the jack base on putting the thing slider, the draw-in groove sets up a plurality ofly along putting thing slider length direction equidistance interval, and power unit drive puts the equidistant removal of thing slider level.
The sliding groove is formed in the workbench, the object placing sliding block is arranged in the sliding groove in a sliding mode, the nut is arranged on the object placing sliding block, the power mechanism comprises a lead screw, the lead screw is arranged in parallel with the sliding groove, the lead screw is matched with the nut, and one end of the lead screw is connected with the power motor.
The utility model discloses a slide block, including draw-in groove length direction level, thing slider is perpendicular to be arranged with putting to draw-in groove length direction level, one side of putting the thing slider is provided with positioning baffle, positioning baffle is located draw-in groove notch one end and arranges, still be provided with the baffle on the workstation, the baffle is close to the opposite side of putting the thing slider and arranges.
The utility model discloses a jack, including workstation, be provided with two location slide bars on the workstation, constitute the bar passageway of the lead screw one end of card device jack between two location slide bars, two location slide bars levels and with put thing slider length direction parallel arrangement, two location slide bars set up and arrange putting thing slider length direction one side.
The steering connecting rod comprises a first connecting rod and a second connecting rod, the first connecting rod is in a sleeve shape and is provided with a jacking spring, the second connecting rod is arranged in the first connecting rod in a sliding mode, one end of the second connecting rod is abutted against the jacking spring, and the rod end of the second connecting rod is connected with one end of the first universal joint.
The telescopic one end mouth of pipe sets to the horn mouth form, telescopic inner wall is provided with the bar draw-in groove, the bar draw-in groove arranges along telescopic length direction, bar draw-in groove symmetry sets up at telescopic inner wall.
The outer wall of the driving rod is provided with a supporting roller, the wheel core of the supporting roller is perpendicular to the driving rod, the wheel frame of the supporting roller is hinged to the supporting frame, a torsional spring is arranged on the hinged shaft of the wheel frame of the supporting roller, and two ends of the torsional spring are respectively abutted to the wheel frame of the supporting roller and the supporting frame.
The supporting rollers are arranged in a plurality at intervals along the axis direction of the driving rod.
The support frame is provided with a power long rod, the power long rod is arranged horizontally and in parallel with the driving rod, a rack is arranged in the length direction of the power long rod, the rack of the power long rod is meshed with a driving gear, and the driving gear is connected with a driving motor.
The support frame is also provided with a guide long rod, the guide long rod and the power long rod are arranged in parallel, and the power long rod and the horizontal rack form sliding fit.
The horizontal rack is arranged on a slide rail, the slide rail is arranged in parallel with the power long rod, a driving nut is arranged on the horizontal rack, the driving nut is matched with a horizontal screw rod, the horizontal screw rod is parallel to the slide rail, and one end of the horizontal screw rod is connected with a horizontal motor.
The invention has the technical effects that: the jack to be detected is placed on the workbench, one end of a screw rod of the jack is connected with one end of a steering connecting rod, a pressure head is started to apply constant pressure to a jack tray, a driving mechanism is started to achieve lifting operation of four connecting rods of the jack, and mechanical property information of the jack can be obtained by transmitting data pressure data, torque data and height information to a computer.
Drawings
FIG. 1 is a schematic plan view of a truck jack test apparatus;
FIGS. 2 and 3 are schematic diagrams of two perspective structures of the truck jack test device;
FIG. 4 is a schematic structural diagram of a steering linkage and a driving mechanism in the truck jack test equipment;
FIG. 5 is a front view of a steering linkage and drive mechanism in the truck jack test rig;
FIG. 6 is a schematic view of a part of the structure of the working table;
fig. 7 is a partial structural schematic view of the end of the steering link.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the invention will now be described in detail with reference to the following examples. It is to be understood that the following text is merely illustrative of one or more specific embodiments of the invention and does not strictly limit the scope of the invention as specifically claimed. As used herein, the terms "parallel" and "perpendicular" are not limited to their strict geometric definitions, but include tolerances for machining or human error, legibility and inconsistency;
the following describes the truck jack test equipment of the present invention in detail with reference to the accompanying drawings 1 to 7:
a vehicle-mounted jack test device comprises a workbench 10, wherein a jack 20 is placed on the workbench 10, a pressure head 30 is arranged above the workbench 10, the pressure head 30 moves up and down and presses a tray of the jack 20, a steering connecting rod 40 is arranged beside the workbench 10, one end of the steering connecting rod 40 is connected with one end of a screw rod of the jack 20, the other end of the steering connecting rod 40 is connected with a driving mechanism, and the driving mechanism drives the steering connecting rod 40 to rotate;
referring to fig. 1, when the mechanical property of the jack 20 is actually tested, a pressure sensor is disposed on the pressure head 30, a torque sensor is disposed on the steering linkage 40, one end of the screw rod of the jack 20 is connected with one end of the screw rod of the steering linkage 40, the pressure head 30 is pressed on the tray of the jack 20, a constant pressure is applied to the pressure head 30, the tray of the jack 20 is lifted in the process of starting the driving mechanism, the mechanical property image of the jack 20 under the actual condition can be drawn through the computer by transmitting the height signal of the tray of the jack 20 and the torque signal of the pressure sensor real-time pressure signal machine steering linkage 40 to the computer, and the mechanical property of the jack 20 can be further judged.
In order to adapt to the lifting of a push disc of the jack 20 and the lifting of one end of a screw rod, the steering connecting rod 40 can still drive one end of the screw rod of the jack 20, one end of the steering connecting rod 40 is provided with a first universal joint 41, one end of the first universal joint 41 is provided with a sleeve 42, and a cylinder cavity of the sleeve 42 is connected with one end of the screw rod of the jack 20;
the connection of one end of the screw rod of the jack 20 can be realized through the sleeve 42, and then the jack 20 is driven, so that the mechanical property of the jack 20 is tested.
Furthermore, in order to drive one end of the screw rod of the jack 20, the other end of the steering link 40 is provided with a second universal joint 43, one end of the second universal joint 43 is connected with one end of a driving rod 44, and the rod end of the driving rod 44 is connected with the driving mechanism.
In order to adapt to the expansion and contraction of the steering link 40 caused by the ascending and descending of the jack 20, the steering link 40 is a telescopic rod structure.
Specifically, a pressure sensor is arranged on the pressure head 30, the pressure sensor transmits a pressure signal of the pressure head 30 to a computer, the upper end of the pressure head 30 is connected with a driving cylinder 31, and a piston rod of the driving cylinder 31 is vertically arranged;
a high-pressure air source is introduced into the driving air cylinder 31 to apply a certain pressure to the driving air cylinder 31, so that a pressure sensor on the pressure head 30 can be used for obtaining a pressure change signal born by the pressure head 30;
height gauges are provided on the table 10 to obtain different such height signals for the pallet of the jack 20.
Furthermore, in order to realize the automatic replacement operation of the mechanical properties of the plurality of jacks 20, the workbench 10 is provided with a placement slider 11, the placement slider 11 is provided with a plurality of clamping grooves 111 for clamping the bases of the jacks 20, the clamping grooves 111 are arranged at equal intervals along the length direction of the placement slider 11, and a power mechanism drives the placement slider 11 to move horizontally at equal intervals;
the method comprises the steps that a plurality of jacks 20 to be detected are placed on a clamping groove 111 at intervals, so that the states of the jacks 20 are kept consistent and are arranged at intervals, a power mechanism is started, a storage sliding block 11 moves horizontally at intervals, the jacks 20 to be detected are moved to one end of a sleeve 42 of a rotating connecting rod 40, the sleeve 42 is connected with a screw rod at one end of the jack 20, and a mechanical image of the jacks 20 is obtained through a sensor, so that the problem that detection efficiency is low due to the fact that workers stay beside test equipment for a long time can be effectively solved;
furthermore, a sliding groove 12 is formed in the workbench 10, the object placing slide block 11 is slidably disposed in the sliding groove 12, a nut 112 is disposed on the object placing slide block 11, the power mechanism includes a lead screw 113, the lead screw 113 is disposed in parallel with the sliding groove 12, the lead screw 113 is matched with the nut 112, and one end of the lead screw 113 is connected with a power motor 114;
the above-mentioned thing slider 11 is driven through the cooperation of lead screw 113 and nut 112, utilizes power motor 114 can accurate control to put the moving distance of thing slider 11, and then can be with the equidistant interval removal of jack 20 to the one end position of sleeve 42 of the equidistant distribution on the thing slider 11, and then ensures that sleeve 42 can accurately insert the one end position at the lead screw of jack 20 to realize the drive to jack 20.
Furthermore, the length direction of the clamping groove 111 is horizontal and is perpendicular to the object placing slide block 11, a positioning baffle 13 is arranged on one side of the object placing slide block 11, the positioning baffle 13 is arranged at one end of the notch of the clamping groove 111, a baffle 15 is further arranged on the workbench 10, and the baffle 15 is arranged close to the other side of the object placing slide block 11;
the positioning baffle 13 can effectively position the jack 20 at the position of the clamping groove 111 to effectively determine the position of the jack 20, and after the screw rod 113 and the nut 112 are matched to drive the jack 20 to move to one end of the sleeve 42, the baffle 15 is just positioned at the notch position at the other end of the clamping groove 111, so that the position of the clamping groove 111 is accurately limited, and the jack 20 is prevented from moving freely on the clamping groove 111;
when putting jack 20 on putting draw-in groove 111 on the thing slider 11, leading-in the base of jack 20 from draw-in groove 111 one end notch is convenient to put to make the base other end of jack 20 and positioning baffle 13 support and lean on, can realize putting convenient operation to jack 20's accuracy.
Furthermore, in order to ensure that the screw rod of the jack is in a constant position, two positioning slide bars 14 are arranged on the workbench 10, a strip-shaped channel for clamping one end of the screw rod of the jack 20 is formed between the two positioning slide bars 14, the two positioning slide bars 14 are arranged horizontally and parallel to the length direction of the object placing slide block 11, and the two positioning slide bars 14 are arranged on one side of the length direction of the object placing slide block 11;
the two positioning sliding rods 14 form a strip-shaped channel for clamping one end of the screw rod of the jack 20, and when the jack 20 is placed in the clamping groove 111 of the object placing slider 11, the jack 20 must be placed on the object placing slider 11 in a state of consistent height of the screw rod, so as to ensure that the sleeve 42 can be effectively clamped with one end of the jack 20.
Further, in order to ensure that the sleeve 42 can form a clamping fit with one end of the screw rod of the jack 20, the steering link 40 includes a first link 401 and a second link 402, the first link 401 is sleeve-shaped and is provided with a tightening spring 403, the second link 402 is slidably arranged in the first link 401, one end of the second link is abutted against the tightening spring 403, and the rod end of the second link 402 is connected with one end of the first universal joint 41;
the above-mentioned tightening spring 403 abuts against one end of the second connecting rod 402, so that the sleeve 42 can always abut against one end of the screw rod of the jack 20, thereby overcoming the problem of extension or contraction of the rotating connecting rod 40 caused by lifting of the screw rod, and ensuring that the sleeve 42 can always form a close fit with one end of the screw rod of the jack 20.
In order to ensure that one end of a screw rod of the jack 20 can be smoothly clamped in the sleeve 42, a pipe orifice at one end of the sleeve 42 is in a bell mouth shape, a strip-shaped clamping groove 421 is arranged on the inner wall of the sleeve 42, the strip-shaped clamping groove 421 is arranged along the length direction of the sleeve 42, and the strip-shaped clamping grooves 421 are symmetrically arranged on the inner wall of the sleeve 42;
the lead screw one end of jack 20 sets up to cyclic annular and the anchor ring level arranges, for the realization to the drive of jack 20 lead screw, the horn mouth form of sleeve 42 leans on with the snap ring of the lead screw one end of jack 20, works as sleeve 42 pivoted in-process for the snap ring card is put in bar draw-in groove 421, works as sleeve 42 pivoted in-process, in order to realize the drive to the lead screw of jack 20.
More preferably, in order to ensure that the sleeve 42 can be matched with the screw rod of the jack 20 in an inserting manner, a supporting roller 45 is arranged on the outer wall of the driving rod 44, the wheel core of the supporting roller 45 is arranged perpendicular to the driving rod 44, the wheel frame of the supporting roller 45 is hinged to the supporting frame 46, a torsion spring 451 is arranged on the wheel frame hinge shaft of the supporting roller 45, and two ends of the torsion spring 451 are respectively abutted to the wheel frame of the supporting roller 45 and the supporting frame 46;
in order to ensure the stable support of the sleeve 42, a plurality of support rollers 45 are arranged at intervals along the axial direction of the driving rod 44;
the support frame 46 is provided with a power long rod 461, the power long rod 461 is horizontal and arranged in parallel with the drive rod 44, a rack is arranged in the length direction of the power long rod 461, the rack of the power long rod 461 is meshed with the drive gear 462, and the drive gear 462 is connected with the drive motor 463;
more specifically, the support frame 46 is further provided with a long guide rod 464, the long guide rod 464 is arranged in parallel with a long power rod 461, and the long power rod 461 and the horizontal frame 465 form a sliding fit;
the horizontal rack 465 is arranged on a sliding rail, the sliding rail is arranged in parallel with the long power rod 461, the horizontal rack 465 is provided with a driving nut, the driving nut is matched with a horizontal screw rod, the horizontal screw rod is parallel to the sliding rail, and one end of the horizontal screw rod is connected with a horizontal motor;
the supporting cylinder 47 is sleeved outside the driving rod 44, when the supporting frame 46 and the supporting roller 45 are positioned on the supporting cylinder 47, the normal rotation of the driving rod 44 is not influenced, when the sleeve 42 is required to be inserted at one end of the screw rod of the jack 20, as one end of the screw rod of the jack 20 is constant, the driving motor 463 drives the driving gear 462 to rotate, so that the supporting roller 45 on the supporting frame 46 and the supporting frame 46 rolls to the outer wall of the sleeve 42 along the second universal joint (43), the steering connecting rod (40) and the first universal joint (43), and the sleeve 42 keeps a pipe length horizontal state, and further the sleeve 42 and one end of the screw rod of the jack 20 keep a cylinder core;
the horizontal motor is started, so that the sleeve 42 abuts against one end of the screw rod of the jack 20, under the elastic abutting force of the abutting spring 403, until the snap ring at one end of the screw rod of the jack 20 abuts against the opening of the sleeve 42, the driving rod 44 is started, and further the rotation of the screw rod of the jack 20 is realized.
Therefore, the test equipment can effectively solve the problem that the time of delaying is caused by manually looking up the jack 20 to be tested at the position of the test equipment for a long time, and the convenience of detection of the jack 20 is improved.
The vehicle-mounted jack test method comprises the following steps:
firstly, the tray of the jack 20 is positioned at the lowest position, the chassis of the jack 20 is pushed in from one end of the clamping groove 111 on the object placing slide block 11, so that the other side of the chassis of the jack 20 is abutted against one side surface of the positioning baffle 13, and the clamping grooves 111 on the object placing slide block 11 of the jacks 20 are fully placed;
secondly, when the chassis of the jack 20 is pushed into the clamping groove 111, one end of a screw rod of the jack 20 is clamped in a material sliding channel between the two positioning slide bars 14 on the workbench 10, if the screw rod cannot be clamped, the screw rod of the jack 20 is adjusted until one end of the screw rod of the jack 20 can be clamped between the two positioning slide bars 14;
thirdly, starting a power motor 114 of the power mechanism to enable the object placing slide block 11 to intermittently slide along the sliding groove 12 of the workbench 10, and enabling the jack 20 on the object placing slide block 11 to be driven to the rod end position of the rotating connecting rod 40;
fourthly, starting the driving motor 463 to enable the supporting frame 46 to abut against the outer wall of the sleeve 42 along the driving rod 44, the second universal joint 43, the steering link 40, the first universal joint 43 and the sleeve 42 by using the supporting roller 45 on the supporting frame 46, so that the sleeve 42 is in a horizontal posture in the length direction;
fifthly, starting a horizontal motor to enable one end of the sleeve 42 to move horizontally and abut against one end of a screw rod of the jack 20, starting a driving rod 44 to rotate, and enabling one end of the screw rod of the jack 20 to be accurately clamped and matched with the sleeve 42;
sixthly, starting the driving motor 463 to rotate reversely, and enabling the supporting frame 46 and the supporting roller 45 to be far away from the sleeve 42 and to retreat to a supporting cylinder 47 sleeved outside the driving rod 44;
seventhly, transmitting pressure signals acquired by a pressure sensor arranged on the pressure head 30, tray height information of the jack 20 and torque signals acquired by a torque sensor arranged on the steering connecting rod 40 into a computer and calculating to obtain performance data of the jack 20;
eighthly, starting the horizontal motor to reversely rotate, so that one end of the sleeve 42 horizontally moves and is separated from one end of the screw rod of the jack 20;
and step nine, repeating the step three to the step eight until all the jacks are measured.
Claims (4)
1. The vehicle-mounted jack test method is characterized by comprising the following steps: the vehicle-mounted jack test method comprises the following steps:
firstly, the tray of the jack (20) is located at the lowest position, the chassis of the jack (20) is pushed in from one end of a clamping groove (111) on the object placing sliding block (11), the other side of the chassis of the jack (20) is abutted against one side face of the positioning baffle (13), and the clamping grooves (111) of the object placing sliding block (11) on which the jacks (20) are located are fully arranged;
secondly, when the chassis of the jack (20) is pushed into the clamping groove (111), one end of a screw rod of the jack (20) is clamped in a sliding material channel between the two positioning slide rods (14) on the workbench (10), if the screw rod of the jack (20) cannot be clamped, the screw rod of the jack (20) is adjusted until one end of the screw rod of the jack (20) can be clamped between the two positioning slide rods (14);
thirdly, starting a power motor (114) of the power mechanism to enable the object placing sliding block (11) to intermittently slide along the sliding groove (12) of the workbench (10), and enabling a jack (20) on the object placing sliding block (11) to be driven to the rod end position of the rotating connecting rod (40);
fourthly, starting a driving motor (463) to enable a supporting frame (46) to abut against the outer wall of the sleeve (42) along a driving rod (44), a second universal joint (43), a steering connecting rod (40), a first universal joint (43) and the sleeve (42) by utilizing a supporting roller (45) on the supporting frame (46) to enable the sleeve (42) to be in a horizontal posture in the length direction;
fifthly, starting a horizontal motor to enable one end of the sleeve (42) to move horizontally and abut against one end of a screw rod of the jack (20), starting a driving rod (44) to rotate, and enabling one end of the screw rod of the jack (20) to be in clamping fit with the sleeve (42) accurately;
sixthly, starting a driving motor (463) to rotate reversely, and enabling the supporting frame (46) and the supporting roller (45) to be far away from the sleeve (42) and to retreat to a supporting cylinder (47) sleeved outside the driving rod (44);
seventhly, transmitting pressure signals acquired by a pressure sensor arranged on the pressure head (30), tray height information of the jack (20) and torque signals acquired by a torque sensor arranged on the steering connecting rod (40) into a computer and calculating to obtain performance data of the jack (20);
eighthly, starting a horizontal motor to reversely rotate, so that one end of the sleeve (42) horizontally moves and is separated from one end of a screw rod of the jack (20);
ninth, repeating the third step to the eighth step until all the jacks are measured;
one end of the steering connecting rod (40) is provided with a first universal joint (41), one end of the first universal joint (41) is provided with a sleeve (42), and a cylinder cavity of the sleeve (42) is connected with one end of a screw rod of the jack (20);
a second universal joint (43) is arranged at the other end of the steering connecting rod (40), one end of the second universal joint (43) is connected with one end of a driving rod (44), and the rod end of the driving rod (44) is connected with a driving mechanism; the steering connecting rod (40) is of a telescopic rod structure;
the clamping grooves (111) are arranged in a plurality at equal intervals along the length direction of the object placing sliding block (11), and the power mechanism drives the object placing sliding block (11) to horizontally move at equal intervals; the workbench (10) is provided with a sliding groove (12), the object placing sliding block (11) is arranged in the sliding groove (12) in a sliding mode, a nut (112) is arranged on the object placing sliding block (11), the power mechanism comprises a lead screw (113), the lead screw (113) and the sliding groove (12) are arranged in parallel, the lead screw (113) is matched with the nut (112), and one end of the lead screw is connected with a power motor (114); the length direction of the clamping groove (111) is horizontal and is perpendicular to the object placing sliding block (11), a positioning baffle (13) is arranged on one side of the object placing sliding block (11), the positioning baffle (13) is arranged at one end of a notch of the clamping groove (111), a baffle (15) is further arranged on the workbench (10), and the baffle (15) is arranged close to the other side of the object placing sliding block (11); the working table (10) is provided with two positioning slide bars (14), a strip-shaped channel for clamping one end of a screw rod of the jack (20) is formed between the two positioning slide bars (14), the two positioning slide bars (14) are arranged horizontally and in parallel with the length direction of the object placing slide block (11), and the two positioning slide bars (14) are arranged on one side of the object placing slide block (11) in the length direction;
the steering connecting rod (40) comprises a first connecting rod (401) and a second connecting rod (402), the first connecting rod (401) is sleeve-shaped and is provided with a jacking spring (403), the second connecting rod (402) is arranged in the first connecting rod (401) in a sliding mode, one end of the second connecting rod is abutted against the jacking spring (403), and the rod end of the second connecting rod (402) is connected with one end of a first universal joint (41); a pipe orifice at one end of the sleeve (42) is in a horn mouth shape, a strip-shaped clamping groove (421) is formed in the inner wall of the sleeve (42), the strip-shaped clamping groove (421) is arranged along the length direction of the sleeve (42), and the strip-shaped clamping grooves (421) are symmetrically formed in the inner wall of the sleeve (42);
the outer wall of the driving rod (44) is sleeved with a supporting barrel (47), a supporting roller (45) is arranged outside the supporting barrel (47), the wheel core of the supporting roller (45) is perpendicular to the driving rod (44), the wheel frame of the supporting roller (45) is hinged to the supporting frame (46), a torsion spring (451) is arranged on the wheel frame hinged shaft of the supporting roller (45), and two ends of the torsion spring (451) are respectively abutted to the wheel frame of the supporting roller (45) and the supporting frame (46);
the supporting rollers (45) are arranged at intervals along the axis direction of the driving rod (44).
2. The truck jack test method according to claim 1, characterized in that: the support frame (46) is provided with a power long rod (461), the power long rod (461) is horizontal and arranged in parallel with the driving rod (44), a rack is arranged in the length direction of the power long rod (461), the rack of the power long rod (461) is meshed with the driving gear (462), and the driving gear (462) is connected with the driving motor (463).
3. The truck jack test method according to claim 2, characterized in that: the support frame (46) is further provided with a long guide rod (464), the long guide rod (464) and a long power rod (461) are arranged in parallel, and the long power rod (461) and a horizontal rack (465) form sliding fit.
4. A jack-on-board test method according to claim 3, wherein: the horizontal rack (465) is arranged on a sliding rail, the sliding rail is arranged in parallel with the long power rod (461), a driving nut is arranged on the horizontal rack (465), the driving nut is matched with the horizontal screw rod, the horizontal screw rod is parallel to the sliding rail, and one end of the horizontal screw rod is connected with the horizontal motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911275759.XA CN110806331B (en) | 2019-12-12 | 2019-12-12 | Vehicle-mounted jack test method |
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