CN220206934U - Torsion calibration device of chassis dynamometer - Google Patents
Torsion calibration device of chassis dynamometer Download PDFInfo
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- CN220206934U CN220206934U CN202321463529.8U CN202321463529U CN220206934U CN 220206934 U CN220206934 U CN 220206934U CN 202321463529 U CN202321463529 U CN 202321463529U CN 220206934 U CN220206934 U CN 220206934U
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- 238000010586 diagram Methods 0.000 description 1
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Abstract
The utility model discloses a torsion calibration device of a chassis dynamometer, which comprises a telescopic U-shaped frame, wherein the U-shaped frame comprises two first telescopic rods which are oppositely arranged, fixing sleeves which are arranged at the upper ends of the inner walls of the two first telescopic rods, and a second telescopic rod which is arranged between the two fixing sleeves and is detachably connected with the two fixing sleeves, the lower end of the outer wall of the second telescopic rod is provided with an electric push rod, the lower end of the electric push rod is provided with a pressure sensor, the lower part of one side of the outer wall of the U-shaped frame is provided with a control panel, the lower end of each first telescopic rod is provided with a fixing bayonet, one side of the upper end of each fixing bayonet is in threaded connection with a fixing bolt, one side of the U-shaped frame is provided with a vertical rod, the upper end of the vertical rod is rotationally connected with a calibration rod, and the front end of the vertical rod is provided with a pull rod. When an inspector goes to field for detection, the utility model does not need to carry weights, the whole device is convenient to carry, and the force applied to the calibration rod can be accurately and uniformly increased or reduced during calibration, so that the error of torsion calibration is reduced.
Description
Technical Field
The utility model relates to the technical field of calibration and verification, in particular to a torsion calibration device of a chassis dynamometer.
Background
The contact type automobile chassis dynamometer used in the motor vehicle detection station is a method of adopting a driving wheel to contact with a roller of the chassis dynamometer and a device for measuring torque, rotating speed and power according to moment balance and distance, and is mainly used for directly measuring the output torque and rotating speed of a power device and obtaining effective power through calculation.
The chassis dynamometer comprises a roller and a loading motor, a torque sensor is arranged on a transmission path of the loading motor and the roller, the torque sensor is required to be calibrated frequently by using a torque calibration device in order to ensure the precision of the torque sensor, the current common torque calibration device is a weight lever type torque calibration device, namely a calibration lever is fixed on the loading motor at one end of the roller to be tested, weights are loaded through a weight tray, a pressure sensor is used for displaying a torque value or an analog value, and the calibration of the torque is realized.
Because the weights are unstable on the calibration lever, the mass of each weight is large, the weight with more angles is required to be carried when an inspector goes to field monitoring, the weight is inconvenient to carry, the weight is unsafe to load, and the number of the weights for each time of adding and subtracting the load is different, so that a certain error is brought to the calibration of torsion.
Disclosure of Invention
The utility model aims to provide a torsion calibration device of a chassis dynamometer, when an inspector goes to field for detection, the device is convenient to carry, the force applied to a calibration rod can be accurately and uniformly increased or reduced during calibration, and the error of torsion calibration is reduced.
The technical aim of the utility model is realized by the following technical scheme:
the utility model provides a torsion calibrating device of chassis dynamometer, includes telescopic U type frame, U type frame includes by two first telescopic links that set up relatively, set up in two first telescopic link inner wall upper end and one end open-ended fixed cover, set up in two between the fixed cover and all with the second telescopic link that can dismantle the connection, electric putter is installed downwards to the lower extreme of second telescopic link outer wall, pressure sensor is installed to electric putter's lower extreme, control panel is installed to the below of U type frame outer wall one side, control panel includes the display screen, a plurality of set up in operating button of display screen one side, electric putter and pressure sensor all with control panel electricity is connected;
the lower end of each first telescopic rod is provided with a U-shaped fixing bayonet with an outward opening, one side of the upper end of each fixing bayonet is internally provided with a threaded hole, each threaded hole is in threaded connection with a fixing bolt extending into the corresponding fixing bayonet, one end of each fixing bolt extending into the corresponding fixing bayonet is rotationally connected with a pressing sheet, one side of the U-shaped frame is provided with a vertical rod which is detachably connected with one side of a calibration sensor of the dynamometer, the upper end of the vertical rod is downwards provided with a fixing groove, the left side and the right side of the fixing groove are internally provided with first through holes in a penetrating way, and the fixing groove is rotationally connected with a calibration rod which can vertically rotate and is detachably connected with the fixing rod;
the lower extreme of demarcation pole outer wall is provided with the fixed block, runs through the second through-hole has been seted up to the lateral wall of fixed block, one side of pole setting outer wall upper end can be dismantled and be connected with and pass first through-hole reaches the bolt of second through-hole runs through the locating hole has been seted up downwards to the front end of demarcation pole upper end, the front end of pole setting is provided with the pull rod in the vortex machine one side of dynamometer and can dismantle with it to be connected, the upper end of pull rod is provided with can pass the threaded rod of locating hole, the outer wall of threaded rod is followed its direction of height threaded connection and is had a plurality of cooperation to be fixed the first fixation nut of demarcation pole.
Through the technical scheme, when the vortex machine is used, firstly, the cover plate above the calibration sensor is removed, the vertical rod is fixedly arranged on the fixed seat of the calibration sensor and fixed, then the verticality of the vertical rod is measured by using the leveling rod, then the pull rod is fixedly arranged on one side of the vortex machine, the fixed block at the lower end of the calibration rod is arranged in the fixed groove, the bolt penetrates through the first through hole and the second through hole and is fixed, the positioning hole on the calibration rod penetrates through the threaded rod, the two first fixing nuts are respectively connected with the upper end and the lower end of the calibration rod in a threaded manner, the leveling rod is placed on the calibration rod, the position of the first fixing nut on the threaded rod is adjusted to enable the calibration rod to be in a horizontal state, and then the calibration rod is fixed on the pull rod;
the two first telescopic rods of the U-shaped frame are arranged at proper positions of the dynamometer and are fixed through fixing bayonets and fixing bolts, the second telescopic rods are fixedly arranged in the two fixing sleeves, at the moment, the lower ends of the electric push rods and the calibration rods are positioned at the same axial line position, equipment is electrified, an operation button on the control panel is operated to enable the electric push rods and the pressure sensors to work, the thrust of the electric push rods is set and pressure is applied to the calibration rods, the numerical value monitored by the pressure sensors is displayed on a display screen, and when the pressure applied by the electric push rods reaches a set value, the numerical value information of torsion of the dynamometer can be calibrated.
The utility model is further provided with: the lower extreme of electric putter is in the left and right sides of pressure sensor all is provided with the stopper downwards.
Through adopting above-mentioned technical scheme, be convenient for with the demarcation pole spacing, avoid causing the slippage at the in-process that electric putter applyed pressure, influence calibration work or initiate the incident.
The utility model is further provided with: the lower ends of the vertical rod and the outer wall of the pull rod are respectively provided with external threads.
The utility model is further provided with: the upper end of the calibration rod and the upper end of one side of the outer wall of the vertical rod are inwards concavely provided with grooves, and each groove is provided with a bubble level.
Through adopting above-mentioned technical scheme, can run through pole setting and mark the pole level through the bubble spirit level when installing pole setting and mark the pole, be convenient for in time adjust.
The utility model is further provided with: the front end of the outer wall of the calibration rod is internally provided with a fixed hole, the fixed hole is detachably connected with a counterweight device matched with the fixed hole, and the counterweight device comprises a counterweight screw rod detachably connected with the fixed hole, a counterweight block detachably connected with the counterweight screw rod, and a second fixing nut in threaded connection with the counterweight screw rod and matched with the counterweight block.
By adopting the technical scheme, the torque values before and after the calibration rod is installed are close, and the influence of the calibration rod assembly on the calibration initial value is reduced.
Compared with the prior art, the utility model has the following beneficial effects:
firstly, when an inspector detects in the field, the weight is not required to be carried, the whole device is convenient to carry, the force applied to the calibration rod can be accurately and uniformly increased or reduced during verification, and the error of torsion calibration is reduced;
secondly, the utility model can increase or decrease the applied force without the cooperation of weights when the torsion value of the dynamometer is calibrated, thereby reducing the error caused by calibration;
thirdly, the bubble level can adjust the position in time in the process of installing the vertical rod and the calibration rod, so that the vertical rod and the calibration rod can be in a required horizontal state after the installation is completed, and additional adjustment is not required.
Drawings
FIG. 1 is a schematic view of the overall structure of the present utility model;
FIG. 2 is a diagram mainly used for showing the positional connection relation of the components;
FIG. 3 is used to show the first through hole, the second through hole and the fixing hole mainly;
fig. 4 is a schematic structural view of the counterweight of the utility model.
In the figure: 1. a U-shaped frame; 11. a first telescopic rod; 12. a fixed sleeve; 13. a second telescopic rod; 14. an electric push rod; 15. a limiting block; 16. a pressure sensor; 17. a control panel; 18. a display screen; 19. operating a button; 2. a fixed bayonet; 21. a threaded hole; 22. a fixing bolt; 23. tabletting; 24. a vertical rod; 25. a fixing groove; 26. a first through hole; 27. calibrating a rod; 28. a fixed block; 29. a second through hole; 3. a plug pin; 31. positioning holes; 32. a pull rod; 33. a threaded rod; 34. a first fixing nut; 35. an external thread; 36. a fixing hole; 37. a counterweight device; 38. a counterweight screw; 39. balancing weight; 4. a second fixing nut; 41. a groove; 42. bubble level.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1-4, a torsion calibration device of a chassis dynamometer includes a telescopic U-shaped frame 1, the U-shaped frame 1 includes a first telescopic rod 11 which is set up by two relative, a fixed sleeve 12 which is set up at the upper end of the inner wall of the two first telescopic rods 11 and one end of which is open, a second telescopic rod 13 which is set up between the two fixed sleeves 12 and is connected with the detachable, an electric push rod 14 is installed downwards at the lower end of the outer wall of the second telescopic rod 13, a pressure sensor 16 is installed at the lower end of the electric push rod 14, a limiting block 15 is installed downwards at the left and right sides of the pressure sensor 16 at the lower end of the electric push rod 14, a control panel 17 is installed below one side of the outer wall of the U-shaped frame 1, the control panel 17 includes a display 18, a plurality of operating buttons 19 which are set up at one side of the display 18, and the electric push rod 14 and the pressure sensor 16 are electrically connected with the control panel 17.
The lower extreme of every first telescopic link 11 all is provided with a fixed bayonet socket 2 that is U type and opening outwards, a screw hole 21 has all been inwards seted up to one side of every fixed bayonet socket 2 upper end, every screw hole 21 all threaded connection has a fixing bolt 22 that stretches into in the corresponding fixed bayonet socket 2, one end that every fixing bolt 22 stretches into in the corresponding fixed bayonet socket 2 all rotates and is connected with a preforming 23, one side of U type frame 1 is provided with one and calibration sensor one side demountable connection's of dynamometer pole setting 24, a fixed slot 25 has been seted up downwards to the upper end of pole setting 24, inwards seted up a first through-hole 26 throughout the left and right sides of fixed slot 25, the fixed slot 25 internal rotation is connected with a calibration pole 27 that can rotate from top to bottom and be connected with it detachably.
The lower extreme of demarcation pole 27 outer wall is provided with a fixed block 28, a second through-hole 29 has been seted up to the lateral wall that runs through the fixed block 28, the upper end of demarcation pole 27 and the upper end of pole setting 24 outer wall one side all inwards sunken be provided with a recess 41, a bubble spirit level 42 is all installed to each recess 41, one side of pole setting 24 outer wall upper end can dismantle and be connected with a bolt 3 that passes first through-hole 26 and second through-hole 29, a locating hole 31 has been seted up downwards to the front end that runs through demarcation pole 27 upper end, the front end of pole setting 24 is provided with a pull rod 32 that just can dismantle with it in the vortex machine side of dynamometer, pole setting 24 and the lower extreme of pull rod 32 outer wall all are provided with an external screw thread 35, the upper end of pull rod 32 is provided with a threaded rod 33 that can pass the locating hole 31, the outer wall of 33 has two first fixation nuts 34 of cooperation fixed demarcation pole 27 along its direction of height screw thread, a fixed hole 36 has inwards been seted up a fixed hole 36, a fixed hole 36 is connected with a fixed hole 36 can dismantle with a device that can dismantle with the screw rod 39 that can cooperate with two screw rod 38, screw rod 39 and two screw rod 38 can dismantle with the screw rod 38 fixed device that can dismantle with the screw rod 38.
The using mode is as follows: when the calibrating device is used, the cover plate above the calibrating sensor is removed firstly, the upright rod 24 is fixedly arranged on the fixed seat of the calibrating sensor through the external threads 35 and fixed, then the perpendicularity of the upright rod 24 is detected through the bubble level meter 42 in the groove 41 and timely adjusted, the upright rod 24 and the fixed seat on the calibrating sensor are kept horizontal, the pull rod 32 is fixedly arranged on one side of the vortex machine through the external threads 35, the fixed block 28 at the lower end of the calibrating rod 27 is arranged in the fixed groove 25, the bolt 3 penetrates through the first through hole 26 and the second through hole 29 and is fixed, the positioning hole 31 on the calibrating rod 27 penetrates through the threaded rod 33 and two first fixing nuts 34 are respectively connected with the upper end and the lower end of the calibrating rod 27 through the threads, then the position of the first fixing nuts 34 on the threaded rod 33 is adjusted through the bubble level meter 42 on the calibrating rod 27, and then the first fixing nuts 34 are rotated to fix the calibrating rod 27 on the pull rod 32.
After the calibration rod 27 is installed, the counterweight device 37 is installed at the front end of the calibration rod 27, the counterweight screw 38 is installed on the fixing hole 36, the counterweight 39 is installed on the counterweight screw 38, the counterweight 39 is fixed at the proper position of the counterweight screw 38 by using the two second fixing nuts 4, at this time, the effect of the calibration rod 27 assembly on the calibration initial value is reduced because the counterweight device 37 is installed and is close to the torsion values before and after the calibration rod 27 is installed, then the two first telescopic rods 11 of the U-shaped frame 1 are installed at the proper positions of the dynamometer and are hooked on the left side and the right side of the dynamometer through the fixing bayonets 2, and the fixing bolts 22 in the threaded holes 21 are rotated to fixedly adjust the corresponding lengths of the first telescopic rods 11 by matching with the pressing pieces 23.
Then the second telescopic rod 13 is fixedly installed in the two fixed sleeves 12, at the moment, the lower end of the electric push rod 14 and the calibration rod 27 are positioned on the same axis, the rear end of the calibration rod 27 is clamped between the two limiting blocks 15, slipping is prevented, the equipment is electrified, the electric push rod 14 and the pressure sensor 16 work by operating the operating button 19 on the control panel 17, the thrust of the electric push rod 14 is set, the pressure is exerted on the calibration rod 27 by the electric push rod 14, at the moment, the pressure sensor 16 is pressed, the monitored numerical value is displayed on the display screen 18, and after the pressure exerted by the electric push rod 14 reaches a set value, the numerical value information of torsion of the dynamometer can be calibrated.
The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.
Claims (5)
1. The utility model provides a torsion calibrating device of chassis dynamometer, includes scalable U type frame (1), its characterized in that: the U-shaped frame (1) comprises two first telescopic rods (11) which are oppositely arranged, a fixed sleeve (12) which is arranged at the upper ends of the inner walls of the two first telescopic rods (11) and is provided with an opening at one end, and a second telescopic rod (13) which is arranged between the two fixed sleeves (12) and is detachably connected with the fixed sleeve, wherein an electric push rod (14) is downwards arranged at the lower end of the outer wall of the second telescopic rod (13), a pressure sensor (16) is arranged at the lower end of the electric push rod (14), a control panel (17) is arranged below one side of the outer wall of the U-shaped frame (1), the control panel (17) comprises a display screen (18) and a plurality of operation buttons (19) which are arranged at one side of the display screen (18), and the electric push rod (14) and the pressure sensor (16) are electrically connected with the control panel (17);
the lower end of each first telescopic rod (11) is provided with a U-shaped fixing bayonet (2) with an outward opening, one side of the upper end of each fixing bayonet (2) is internally provided with a threaded hole (21), each threaded hole (21) is in threaded connection with a fixing bolt (22) extending into the corresponding fixing bayonet (2), one end of each fixing bolt (22) extending into the corresponding fixing bayonet (2) is rotatably connected with a pressing sheet (23), one side of the U-shaped frame (1) is provided with a vertical rod (24) detachably connected with one side of a calibration sensor of a dynamometer, the upper end of the vertical rod (24) is downwards provided with a fixing groove (25), first through holes (26) are inwards formed in the left side and the right side of the fixing groove (25), and the fixing groove (25) is rotatably connected with a calibration rod (27) which can be rotated up and down and detachably connected with the fixing groove;
the utility model discloses a calibration pole, including calibration pole (27), locating lever (31) are provided with fixed block (28) in the lower extreme of calibration pole (27) outer wall, run through second through-hole (29) have been seted up to the lateral wall of fixed block (28), one side of pole setting (24) outer wall upper end can be dismantled and be connected with and pass first through-hole (26) reaches bolt (3) of second through-hole (29), run through locating hole (31) have been seted up downwards to the front end of calibration pole (27) upper end, the front end of pole setting (24) is provided with vortex machine one side and can dismantle pull rod (32) of being connected with it, the upper end of pull rod (32) is provided with can pass threaded rod (33) of locating hole (31), the outer wall of threaded rod (33) is followed its direction threaded connection has a plurality of cooperation to be fixed first fixation nut (34) of calibration pole (27).
2. The torsion calibration apparatus of a chassis dynamometer of claim 1, wherein: limiting blocks (15) are downwards arranged at the lower end of the electric push rod (14) on the left side and the right side of the pressure sensor (16).
3. The torsion calibration apparatus of a chassis dynamometer of claim 1, wherein: external threads (35) are arranged at the lower ends of the outer walls of the vertical rod (24) and the pull rod (32).
4. The torsion calibration apparatus of a chassis dynamometer of claim 1, wherein: the upper end of the calibration rod (27) and the upper end of one side of the outer wall of the vertical rod (24) are inwards concavely provided with grooves (41), and each groove (41) is provided with a bubble level meter (42).
5. The torsion calibration apparatus of a chassis dynamometer of claim 1, wherein: the front end of the outer wall of the calibration rod (27) is internally provided with a fixed hole (36), the fixed hole (36) is detachably connected with a counterweight device (37) matched with the fixed hole, and the counterweight device (37) comprises a counterweight screw (38) detachably connected with the fixed hole (36), a counterweight (39) detachably connected with the counterweight screw (38), and a second fixing nut (4) in threaded connection with the counterweight screw (38) and matched with the counterweight screw (39).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321463529.8U CN220206934U (en) | 2023-06-09 | 2023-06-09 | Torsion calibration device of chassis dynamometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321463529.8U CN220206934U (en) | 2023-06-09 | 2023-06-09 | Torsion calibration device of chassis dynamometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220206934U true CN220206934U (en) | 2023-12-19 |
Family
ID=89143690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321463529.8U Active CN220206934U (en) | 2023-06-09 | 2023-06-09 | Torsion calibration device of chassis dynamometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220206934U (en) |
-
2023
- 2023-06-09 CN CN202321463529.8U patent/CN220206934U/en active Active
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