A kind of speed pickup performance index detection device
Technical field
The present invention relates to sensor detecting field, particularly a kind of speed pickup performance index detection device.
Background technology
The speed pickup pick-up unit of current use mostly adopts dovetail groove guide rail as guiding mechanism, its complex structure, guide rail processing difficulties, manufacturing cost is high, degree of regulation is low, and the gap between sensor and gear is inaccurate, often there will be and causes gear by the phenomenon broken because sensor and gear clearance are too little, radiographic measurement progress, causing measuring cost increases; And existing pick-up unit cannot detect the performance index of many group friction speed sensors simultaneously, detection efficiency is lower.
Summary of the invention
(1) technical matters that will solve
The technical problem to be solved in the present invention is: cannot realize detecting many group friction speed sensors for solving existing speed pickup pick-up unit, detection efficiency is lower simultaneously; Degree of regulation is low, and cause sensor and gear apart from too close, gear is easily by the problem broken.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of speed pickup performance index detection device, comprise the casing that inside is provided with cavity, the main shaft that level is installed is provided with in casing, main shaft is connected with motor, it is characterized in that, described main shaft is provided with at least two gears, described casing is provided with at least two sensors installation unit, and described sensor mounting unit and gear mesh should be arranged; Each sensor mounting unit includes: sensor holder and guide pole, and guide pole is vertically arranged on casing, and is connected with box body-sliding; Sensor holder is arranged on above casing, and is fixedly connected with the top of guide pole; One end of sensor to be measured is connected with sensor holder, and it is relative with the top of gear that the other end penetrates casing; The adjustment module for regulating sensor holder and casing spacing is provided with between sensor holder and casing.
Wherein, the two ends of described sensor holder are all connected with guide pole, and described adjustment module is arranged on one end of sensor holder.
Wherein, described adjustment module comprises threaded line pipe and handle, and threaded tube connects on the guide bar, and the bottom of threaded line pipe connects with the upper surface at casing top, and the outside of threaded line pipe is connected with sensor holder by screw thread; Handle is horizontally disposed with and is fixedly connected with threaded line pipe, and handle is used for rotated threaded tubular.
Wherein, one end of described handle is fixedly connected with threaded line pipe, and the other end passes described sensor holder and stretches out outside sensor holder.
Wherein, described sensor holder is provided with the slotted hole passed through for handle; Described slotted hole is horizontally disposed with, and it is highly greater than the diameter of handle.
Wherein, described casing comprises the main spindle box of bottom-open, and is connected to the base of main spindle box bottom it; Guide pole successively through base and main spindle box, and is fixedly connected with sensor holder at the top of main spindle box.
Wherein, the two ends of described guide pole are all connected with nut, and the nut of its upper end is connected to the top of sensor holder, and the nut of its lower end is connected to the below of base, leaves gap between the nut of guide pole lower end and base.
Wherein, described guide pole is linear bearing guide pole.
(3) beneficial effect
Technique scheme tool has the following advantages: a kind of speed pickup performance index detection device of the present invention, by installing multiple gear on main shaft simultaneously, each gear mesh should be provided with the mode of different sensors, achieve the object simultaneously detecting different sensors performance, improve work efficiency; The moving range of sensor holder limits by the slewing area of handle, and sensor can not collide with gear; Adopt screw thread to promote sensor base motion, sensor base is close to the screw thread of threaded line pipe under gravity always, high to the control accuracy of sensor displacement.
Accompanying drawing explanation
Fig. 1 is the structural representation of speed pickup performance index detection device of the present invention;
Fig. 2 is the A-A sectional view of Fig. 1.
Wherein, 1, motor; 2, main spindle box; 3, main shaft; 4, gear; 5, sensor to be measured; 6, sensor holder; 7, guide pole; 8, base; 9, threaded line pipe; 10, handle.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
As shown in Figure 1, a kind of speed pickup performance index detection device of the present invention, the speed pickup that many groups are different can be detected simultaneously, it specifically comprises: main spindle box 2, base 8, main shaft 3, gear 4 and sensor mounting unit, main spindle box 2 inside is empty and bottom-open, base 8 is connected to the unlimited place bottom main spindle box 2, surrounds a cavity together with main spindle box 2; Main shaft 3 is connected horizontally on main spindle box 2 by bearing, and the end of main shaft 3 is connected with motor 1, and motor 1 is arranged on main spindle box 2; Gear 4 is at least provided with two, and all gears 4 are all connected on main shaft 3, and sensor mounting unit also comprises multiple, and correspondingly with gear 4 arranges.Sensor mounting unit comprises: sensor holder 6, guide pole 7, threaded line pipe 9 and handle 10, and sensor holder 6 is arranged on the top of main spindle box 2, for installing sensor 5 to be measured; As Fig. 2, the top of main spindle box 2 has hole, and one end of sensor 5 to be measured penetrates in main spindle box 2, just to the flank of tooth of gear 4 by this hole; The two ends of each sensing seat are all fixedly connected with guide pole 7, and guide pole 7 passes vertically through main spindle box 2 and base 8, and are slidably connected with main spindle box 2 and base 8 respectively; The two ends of guide pole 7 are equipped with nut, and the nut of guide pole 7 lower end is positioned at the below of base 8, and and leave gap between base 8, facilitate guide pole 7 respect thereto 8 and main spindle box 2 to move up and down; On the guide pole 7 of sensor holder 6 one end, be socketed with threaded line pipe 9, threaded line pipe 9 and guide pole 7 are slidably connected, and are connected outside it by screw thread with sensor holder 6, the axis of screw thread and the dead in line of corresponding guide pole 7, the bottom of threaded line pipe 9 connects with the upper surface of main spindle box 2; The side horizontal of sensor holder 6 is provided with slotted hole, and one end of handle 10 passes outside sensor holder 6 by this slotted hole, and the other end of handle 10 is fixedly connected with threaded line pipe 9.The height of slotted hole is greater than the diameter of handle 10, makes handle 10 while horizontally rotating, and can do the motion of above-below direction in slotted hole.
Preferably, guide pole 7 is linear bearing guide pole, and the junction of itself and main spindle box 2 or base 8 is all provided with linear bearing.
Preferably, in the place that main spindle box 2 top connects with threaded line pipe 9, around guide pole 7, an annular test boss is set, when needing the sensor detecting a certain model, according to the sensor of needs when detecting and the minor increment of gear 4, by the height of Milling Process adjustment test boss, until meet installation requirement; That tests boss is arranged so that the present invention can detect multiple different model sensor device, and the scope of application is wider.
The principle of work of a kind of speed pickup of the present invention performance index detection device is as follows:
First, according to the diameter of corresponding gear 4, and handle 10 is gone to correct position, adjust the setting height(from bottom) of sensor 5 to be measured.Due to the Jun You edge, two ends of slotted hole, therefore handle 10 can only at certain angle range of motion, accordingly, threaded line pipe 9 also can only rotate in certain angular range, the rotating band dynamic sensor seat 6 relative main case 2 of threaded line pipe 9 moves up and down, and drives sensor 5 opposed gear 4 to be measured to move up and down; Namely the relative distance between sensor 5 to be measured and gear 4 is limited within the specific limits, and after sensor 5 to be measured is installed, namely the range of movement between itself and gear 4 is determined, there will not be the situation that sensor 5 to be measured collides with gear 4.Then, starter motor 1, allow gear 4 with the rotational speed of regulation, sensor 5 to be measured starts the kinematic parameter recording gear 4, can determine the performance of respective sensor according to the kinematic parameter detected, realizes the object of detection speed sensor.
When adjusting the distance between sensor 5 to be measured and gear 4, be rotated counterclockwise handle 10, threaded line pipe 9 rotates counterclockwise around guide pole 7, sensor holder 6 cannot rotate, suppose that screw thread is dextrorotation, under the effect of screw thread, sensor holder 6 drives guide pole 7 to move downward, and then drives sensor 5 to be measured to move near the direction of gear 4; When turn clockwise handle 10 time, sensor holder 6 drives sensor 5 to be measured to move to the direction away from gear 4, realizes the fine setting of sensor to be measured 5 and gear 4 spacing.That is, when handle 10 is positioned at the two ends of slotted hole, sensor 5 to be measured is positioned at distance gear 4 recently and farthest two positions just, as long as control two parameters well, sensor 5 to be measured and gear 4 just can be avoided to collide.
As can be seen from the above embodiments, the present invention is arranged on the mode on same main shaft 3 simultaneously by the multiple gear 4 of employing, and gives the configuration of each gear 4 correspondence a sensor, achieves the object simultaneously detecting different sensors, improves detection efficiency.Distance between sensor and gear 4 is adjusted by handle 10 and threaded line pipe 9, due to the Jun You edge, two ends of slotted hole, handle 10 and threaded line pipe 9 can only be rotated in certain angular range, and therefore the move distance of sensor 5 to be measured is controlled in certain limit; Sensor 5 to be measured can not collide with gear 4 after installing, and testing process can not stop because gear 4 damages, and detection time is short, efficiency is high.Linear bearing guide pole selected by guide pole 7, and is connected with main spindle box 2 and base 8 by linear bearing, and the two ends of each sensor holder 6 are all connected with linear bearing guide pole, and therefore sensor 5 to be measured can not deflect in motion process; And the motion of sensor holder 6 is promoted by screw thread, sensor holder 6 can the screw thread of moment and threaded line pipe 9 be close under gravity, and the Adjustment precision of sensor 5 move distance to be measured is high, and the sensor performance index detected is more accurate.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and replacement, these improve and replace and also should be considered as protection scope of the present invention.