CN213688266U - Device for detecting position degree of intermediate shaft gear - Google Patents
Device for detecting position degree of intermediate shaft gear Download PDFInfo
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- CN213688266U CN213688266U CN202023288970.6U CN202023288970U CN213688266U CN 213688266 U CN213688266 U CN 213688266U CN 202023288970 U CN202023288970 U CN 202023288970U CN 213688266 U CN213688266 U CN 213688266U
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- position degree
- displacement sensor
- steel ball
- lead screw
- gear
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Abstract
The utility model relates to a gear position degree detects technical field, specifically discloses jackshaft gear position degree detection device, which comprises a frame, be equipped with positioning unit and detecting element in the frame, positioning unit is used for supporting the jackshaft structure who waits to detect, detecting element is equipped with the actuating mechanism that drive location steel ball removed along X axle and Z axle including location steel ball and displacement sensor in the frame, and displacement sensor is connected with the PLC controller to link to each other with the computer through the ethernet interface, the displacement sensor level sets up in the frame, and its sense terminal level orientation waits to detect the structural reference gear of jackshaft. Only set up a displacement sensor in this patent, through the cooperation with the location steel ball, calculate through turning amount formula and computer, can accomplish the structural position degree measurement of gear of jackshaft fast, and reduced detection device's manufacturing cost.
Description
Technical Field
The utility model relates to a gear position degree detects technical field, in particular to jackshaft gear position degree detection device.
Background
The speed changer for the truck is developed by the company, a double-middle-shaft structure is adopted, gears on the middle shafts are left-handed teeth, during assembly, the centers of tooth grooves of all the gears and reference teeth in a measuring position are required to be superposed, and the position deviation is not greater than phi X, so that the uniform stress during working is ensured.
Because the intermediate shaft gear and the shaft are in interference fit, the gear needs to be heated during assembly, the position degree needs to be detected after the assembly is finished, the position degree detection mainly depends on a gear measurement center for detection, the tooth profile is measured according to the principle of the position degree detection, and an offset center is found for comparison.
SUMMERY OF THE UTILITY MODEL
The utility model provides a jackshaft gear position degree detection device to need drop into a plurality of sensors among the solution prior art and detect, the great problem of equipment loss.
In order to achieve the above purpose, the technical scheme of the utility model is that:
jackshaft gear position degree detection device, which comprises a frame, be equipped with positioning unit and detecting element in the frame, positioning unit is used for supporting the jackshaft structure of waiting to detect, detecting element is equipped with the actuating mechanism that drive location steel ball removed along X axle and Z axle including location steel ball and displacement sensor in the frame, and displacement sensor is connected with the PLC controller to link to each other with the computer through the ethernet interface, the displacement sensor level sets up in the frame, and its sense terminal level orientation waits to detect the reference gear on the jackshaft structure.
The technical principle and the effect of the technical scheme are as follows:
1. in the scheme, during detection, the positioning unit is used for supporting the intermediate shaft structure, the rotation center O of the intermediate shaft is used as a coordinate 0 point, the gear on the leftmost side or the right side is used as a reference gear, the reference gear has a reference circle radius of R0 (known), the displacement sensor is moved, the detection end of the displacement sensor is positioned in a tooth groove of the reference gear, the circle center of the detection end is overlapped with the reference circle of the reference gear, the positioning steel ball is moved into the tooth groove at the top of the reference gear through the driving mechanism, the circle center of the positioning steel ball is overlapped with the reference circle of the reference gear, and the numerical value output by the displacement sensor is C (zero resetting can be directly performed).
The rear displacement sensor does not move any more, the positioning steel ball is moved by the driving mechanism to move into a gear groove of a first measured gear, and the center of the positioning steel ball is enabled to coincide with the reference circle of the first measured gear, wherein the reference circle radius of the measured gear is Ri (known), the distribution circle radius of the first measured gear is R1, the reading of the rear displacement sensor is recorded as C1, and the rotation amount (position degree) of the first measured gear is dX1 (C1-C) R1/R0; the measured gears are measured in this order, and the rotation amount (position degree) dXi (i is 1,2,3 … …) of each measured gear is obtained.
Therefore, the actual position degree of each gear to be tested is obtained in the mode, and whether the gear to be tested meets the assembly requirement or not is judged through comparison between the actual position degree and the specified position degree.
2. In the scheme, only one displacement sensor is arranged, and the measurement of the position degree of the gear on the intermediate shaft structure can be quickly completed through the matching with the positioning steel ball and the calculation of a rotation amount formula and a computer, and the manufacturing cost of the detection device is reduced.
Further, the displacement sensor is horizontally connected to the rack in a sliding mode.
Has the advantages that: therefore, when the intermediate shaft structure to be detected is placed into or taken out of the positioning unit, the intermediate shaft structure can be kept away from the intermediate shaft structure through the sliding displacement sensor so as to be convenient to operate.
Furthermore, the positioning unit comprises support tables arranged on two sides, V-shaped grooves are formed in the support tables, and the bottom surfaces of the two V-shaped grooves are located on the same horizontal plane.
Has the advantages that: the arrangement can play a good supporting role for the intermediate shaft structure.
Furthermore, a tip mechanism close to one of the supporting tables is arranged on the machine frame.
Has the advantages that: the center mechanism is arranged for adjusting the coincidence of the detection reference and the design reference.
Furthermore, actuating mechanism includes first lead screw pair and second lead screw pair, and first lead screw pair includes first lead screw and first slider, and first lead screw level sets up in the top of positioning unit, and second lead screw pair includes second lead screw and second slider, and the vertical rotation of second lead screw is connected on first slider, and the setting steel ball of location sets up on the second slider.
Has the advantages that: the driving mechanism arranged in this way can realize quick and accurate positioning of the positioning steel ball.
Furthermore, an elastic telescopic mechanism is arranged between the positioning steel ball and the second sliding block.
Has the advantages that: the elastic telescopic mechanism is arranged to ensure that the positioning steel ball can be tangent to two tooth surfaces in the measured gear at the same time, if the elastic telescopic mechanism is not arranged, if the measured gear deflects relatively, the positioning steel ball can enter the tooth groove to be tangent to one of the tooth surfaces possibly, but cannot be tangent to the two tooth surfaces at the same time, and thus, the measured position accuracy is inaccurate.
Furthermore, the elastic telescopic mechanism comprises a frame body with an opening at the bottom, a connecting hole is formed in the top of the frame body, the frame body and the second sliding block are fixed through bolts, a spring is fixed inside the frame body, a pin rod is fixed at the bottom of the spring, a cone is arranged at the bottom of the pin rod, and a positioning steel ball is fixed at the bottom of the pin rod.
Has the advantages that: through pin rod coupling spring and location steel ball, can make better card of location steel ball go into in the tooth's socket, prevent that it from producing great amplitude.
Drawings
Fig. 1 is a front view of an embodiment of the device for detecting the position degree of a middle shaft gear of the present invention;
fig. 2 is a left side view of an embodiment of the middle shaft gear position degree detection device of the present invention;
fig. 3 is a sectional view of an elastic telescopic structure in an embodiment of the device for detecting the position degree of the middle shaft gear of the present invention;
fig. 4 is the utility model discloses intermediate shaft gear position degree detection device embodiment is at the time of measuring schematic diagram.
Reference numerals in the drawings of the specification include: the device comprises an intermediate shaft structure 1, a reference gear 2, a measured gear 3, a support table 10, a tip mechanism 11, a positioning steel ball 12, a displacement sensor 13, a first screw pair 14, a second screw pair 15, a frame 16, a bolt 17, a spring 18 and a pin rod 19.
Detailed Description
The following is further detailed by way of specific embodiments:
examples
Substantially as shown in figures 1 and 2 of the accompanying drawings: jackshaft gear position degree detection device, which comprises a frame, be equipped with positioning unit and detecting element in the frame, wherein positioning unit is used for supporting the jackshaft structure 1 who waits to detect, positioning unit is including setting up the brace table 10 in the left and right sides respectively in this embodiment, the V-arrangement groove has been seted up on the brace table 10, and the bottom surface in two V-arrangement grooves is located same horizontal plane, jackshaft structure 1's both ends can be placed at the V-arrangement inslot, still be equipped with top mechanism 11 that is close to one of them brace table 10 in the frame, top mechanism 11 is used for adjusting and detects benchmark and design benchmark coincidence.
The detection unit comprises a positioning steel ball 12 and a displacement sensor 13, wherein a first lead screw pair 14 and a second lead screw pair 15 are arranged on the rack, the first lead screw pair 14 and the second lead screw pair 15 control the X-axis and Z-axis movement of the positioning steel ball 12, the first lead screw pair 14 comprises a first lead screw and a first sliding block, the first lead screw is horizontally arranged above the positioning unit, the second lead screw pair 15 comprises a second lead screw and a second sliding block, the second lead screw is vertically and rotatably connected to the first sliding block, and an elastic telescopic structure is arranged between the positioning steel ball 12 and the second sliding block.
Referring to fig. 3, the elastically telescopic structure in this embodiment includes a frame 16 with an opening at the bottom, a connecting hole is formed at the top of the frame 16, the frame 16 and the second slider are fixed by a bolt 17, a spring 18 is fixed inside the frame 16, a pin 19 is fixed at the bottom of the spring 18, the bottom of the pin 19 is tapered, and the positioning steel ball 12 is fixed at the bottom of the pin 19.
The intermediate shaft structure 1 of this embodiment uses the left side gear as benchmark gear 2, and wherein displacement sensor 13 horizontal sliding connection is in the frame, and its sense terminal level is towards the benchmark tooth, and displacement sensor 13 is connected with the PLC controller in addition to link to each other with the computer through the ethernet interface.
During detection, as shown in fig. 4, the rotation center O of the intermediate shaft is taken as a coordinate 0 point, the leftmost gear is taken as the reference gear 2, the reference gear 2 has a reference circle radius R0 (known), the displacement sensor 13 is moved so that the detection end thereof is positioned in the tooth space of the reference gear 2 and the center of the detection end coincides with the reference circle of the reference gear 2, the positioning steel ball 12 is moved into the tooth space at the top of the reference gear 2 by the first screw pair 14 and the second screw pair 15 so that the center of the positioning steel ball 12 coincides with the reference circle of the reference gear 2, and the value output by the displacement sensor 13 at this time is C (zero resetting may be directly performed).
The rear displacement sensor 13 does not move any more, the positioning steel ball 12 is moved through the first screw pair 14 and the second screw pair 15, so that the positioning steel ball is moved into the tooth slot of the first gear to be measured 3, and the center of the positioning steel ball coincides with the reference circle of the first gear to be measured 3, wherein the reference circle radius of the gear to be measured 3 is Ri (known), the distribution circle radius of the first gear to be measured 3 is R1, and then the reading of the displacement sensor 13 is recorded as C1, so that the rotation amount (position degree) of the first gear to be measured 3 is dX1 ═ R1/R0 (C1-C);
the measured gear 3 is measured in this order by the above method, and the rotation amount (position degree) dXi (i is 1,2,3 … …) of each measured gear 3 is obtained.
In the intermediate shaft structure 1 in the present embodiment, the specified position degree Φ X of the measured gear 3 does not exceed 0.44, so the actual position degree of each measured gear 3 is obtained by the above-described detection method, and whether the measured gear 3 satisfies the assembly requirement is determined by comparing the actual position degree with the specified position degree.
The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (7)
1. Jackshaft gear position degree detection device, including the frame, its characterized in that: the detection device is characterized in that a positioning unit and a detection unit are arranged on the rack, the positioning unit is used for supporting an intermediate shaft structure to be detected, the detection unit comprises a positioning steel ball and a displacement sensor, a driving mechanism for driving the positioning steel ball to move along an X axis and a Z axis is arranged on the rack, the displacement sensor is connected with a PLC (programmable logic controller) and is connected with a computer through an Ethernet interface, the displacement sensor is horizontally arranged on the rack, and a detection end of the displacement sensor horizontally faces a reference gear on the intermediate shaft structure to be detected.
2. The counter gear position degree detecting device according to claim 1, wherein: the displacement sensor is horizontally connected to the rack in a sliding manner.
3. The counter gear position degree detecting device according to claim 1, wherein: the positioning unit comprises supporting tables arranged on two sides, V-shaped grooves are formed in the supporting tables, and the bottom surfaces of the two V-shaped grooves are located on the same horizontal plane.
4. A counter shaft gear position degree detecting device according to claim 3, wherein: the machine frame is also provided with a tip mechanism close to one of the supporting tables.
5. The counter gear position degree detecting device according to claim 1, wherein: the driving mechanism comprises a first lead screw pair and a second lead screw pair, the first lead screw pair comprises a first lead screw and a first sliding block, the first lead screw is horizontally arranged above the positioning unit, the second lead screw pair comprises a second lead screw and a second sliding block, the second lead screw is vertically and rotatably connected to the first sliding block, and the positioning steel ball is arranged on the second sliding block.
6. The counter gear position degree detecting device according to claim 5, wherein: and an elastic telescopic mechanism is arranged between the positioning steel ball and the second sliding block.
7. The counter gear position degree detecting device according to claim 6, wherein: the elastic telescopic mechanism comprises a frame body with an opening at the bottom, a connecting hole is formed in the top of the frame body, the frame body and the second sliding block are fixed through bolts, a spring is fixed inside the frame body, a pin rod is fixed at the bottom of the spring, a cone is arranged at the bottom of the pin rod, and a positioning steel ball is fixed at the bottom of the pin rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023288970.6U CN213688266U (en) | 2020-12-30 | 2020-12-30 | Device for detecting position degree of intermediate shaft gear |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023288970.6U CN213688266U (en) | 2020-12-30 | 2020-12-30 | Device for detecting position degree of intermediate shaft gear |
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| CN213688266U true CN213688266U (en) | 2021-07-13 |
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| CN202023288970.6U Active CN213688266U (en) | 2020-12-30 | 2020-12-30 | Device for detecting position degree of intermediate shaft gear |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114264211A (en) * | 2021-12-27 | 2022-04-01 | 青岛弗尔迪测控有限公司 | Detection device and method for large gear |
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2020
- 2020-12-30 CN CN202023288970.6U patent/CN213688266U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114264211A (en) * | 2021-12-27 | 2022-04-01 | 青岛弗尔迪测控有限公司 | Detection device and method for large gear |
| CN114264211B (en) * | 2021-12-27 | 2024-02-13 | 青岛弗尔迪测控有限公司 | Large gear detection device and method |
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