CN212724470U - Gear measurement skill training appliance for teaching - Google Patents
Gear measurement skill training appliance for teaching Download PDFInfo
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- CN212724470U CN212724470U CN202021926000.1U CN202021926000U CN212724470U CN 212724470 U CN212724470 U CN 212724470U CN 202021926000 U CN202021926000 U CN 202021926000U CN 212724470 U CN212724470 U CN 212724470U
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- gear
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- gear shaft
- shaft
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Abstract
The utility model discloses a gear measurement skill training appliance for teaching, including base, gear shaft and gear, be equipped with the type of falling T spout on the base, the spout opening is up, spout opening both sides are equipped with thin bar mounting groove respectively, the gear shaft bottom is equipped with the installation piece, the gear shaft is mutually perpendicular with the installation piece, installation piece both ends are equipped with the screw hole, the installation piece of gear shaft bottom is arranged in the type of falling T spout of base and can be followed the spout and removed, the screw hole at the aforesaid installation piece both ends is located under the mounting groove on the base, can fix the gear shaft on the base through fastening bolt; the gear is sleeved on the gear shaft. The utility model discloses the content that can practise has: measuring the length of a shaft shoulder, measuring the diameter of a shaft, measuring the run-out quantity of an end face, measuring the roundness of the shaft, measuring the cylindricity and measuring the run-out quantity of a radial direction.
Description
Technical Field
The utility model relates to a measure teaching aid technical field, a gear measurement skill training utensil for teaching specifically says so.
Background
According to the actual experience of the academies and the armies at present, the master of the basic skill of engineering equipment maintenance is mainly generated through classroom theoretical teaching and actual equipment training operation, and particularly in the aspect of inspection and measurement, no mature equipment with targeted training significance exists, so that some problems exist. Firstly, because the number of actual equipment is small, maintenance personnel cannot participate in sufficient skill training by everyone; secondly, the maintenance process is often complex, the maintenance time is often too long, so that maintenance personnel only know the operation process and do not understand the purpose of the operation process for the maintenance process and the content; ultimately these problems negatively impact the generation of inspection measurement skills by service personnel of the engineering equipment.
In the equipment maintenance process, the measurement contents related to the gear are common, the gear comprises various transmission gears, timing gears, differential gears and the like, the good working state of the gear is often related to the normal operation of the equipment, whether the gear is deformed or not and whether the gear is abraded or not can be known by measuring the parameters of the related gear, and the safe use of machinery is ensured. At present, there is no comprehensive gear measurement skill training device suitable for teaching, and some measurement learning and training need to be carried out on site in a real object, which is not beneficial to teaching and training efficiency and effect.
Disclosure of Invention
The utility model aims at providing a gear measurement skill training utensil for teaching to the not enough among the above-mentioned prior art.
The utility model aims at realizing through the following technical scheme:
a gear measurement skill training device for teaching comprises a base, a gear shaft and a gear, wherein an inverted T-shaped sliding groove is formed in the base, the opening of the sliding groove is upward, two sides of the opening of the sliding groove are respectively provided with a thin strip-shaped mounting groove, a mounting block is arranged at the bottom of the gear shaft, the gear shaft is perpendicular to the mounting block, two ends of the mounting block are provided with threaded holes, the mounting block at the bottom of the gear shaft is arranged in the inverted T-shaped sliding groove of the base and can move along the sliding groove, the threaded holes at two ends of the mounting block are located right below the mounting groove in the base, and the gear shaft can be fixed on the base through fastening bolts; the gear sleeve is arranged on the gear shaft.
The utility model discloses in the further design, still locate including the cover epaxial axle sleeve of gear, the gear cover is located on the axle sleeve, the outside of axle sleeve is equipped with convex round pin key, gear shaft hole inner wall locate with the cotter way of axle sleeve round pin key looks adaptation.
The utility model discloses in the further design, install 2 engaged with gears on the above-mentioned base.
The utility model discloses following outstanding beneficial effect has:
the utility model discloses a gear measurement skill training utensil cooperation measuring tool and spanner for teaching adjust the clearance, through the measurable gear relevant parameter value of calculation of measurement and formula, the utility model discloses the content that can practise has: measuring the number of teeth, the diameter of a tooth top circle, the modulus m and the pressure angle, and measuring and training the gear clearance. The gear measures training items many, and is multiple in kind, through the utility model discloses an exercise can make the practitioner fast, the accurate basic method that utilizes measuring tool to carry out the inspection to all kinds of gear class spare parts, reaches gear measurement skill generation purpose among the mechanical maintenance skill, accomplishes the measurement training of the relevant content of gear.
Drawings
FIG. 1 is a schematic structural view of a gear measurement skill training device in an embodiment;
FIG. 2 is a schematic view of the structure of the base in the embodiment;
FIG. 3 is an assembly view of the gear and gear shaft of the embodiment;
FIG. 4 is an assembly view of the gear shaft and the base in the embodiment;
FIG. 5 is a dimension mark associated with gear measurement in the example;
in the figure, 1-base, 2-gear shaft, 3-gear, 4-shaft sleeve, 5-pin key, 6-pin groove, 7-sliding groove, 8-mounting groove, 9-mounting block, 10-threaded hole and 11-fastening bolt.
Detailed Description
The present invention will be further explained with reference to the drawings and the embodiments.
Examples
Referring to the attached drawings 1-4, a gear measurement skill training device for teaching comprises a base 1, a gear shaft 2, a shaft sleeve 4 and a gear 3, wherein the shaft sleeve 4 and the gear 3 are sleeved on the gear shaft 2, an inverted T-shaped chute 7 is arranged on the base 1, the opening of the chute 7 faces upwards, two sides of the opening of the chute 7 are respectively provided with a thin strip-shaped mounting groove 8, the bottom of the gear shaft 2 is provided with a mounting block 9, the gear shaft 2 is vertical to the mounting block 9, two ends of the mounting block 9 are provided with threaded holes 10, the mounting block 9 at the bottom of the gear shaft 2 is arranged in the chute 7 of the base 1 and can move along the chute 7, the threaded holes 10 at two ends of the mounting block 9 are positioned under the mounting grooves 8 on the base, the gear shaft 2 can be fixed on the base by; by loosening the fastening bolts 11, the mounting block 9 can be moved in the direction of the mounting groove 8, and the gear clearance between the two gears 3 mounted on the mounting block 9 is changed, so that corresponding adjustments can be made for corresponding measurements. The shaft sleeve 4 is sleeved with the gear 3, the outer side of the shaft sleeve 4 is provided with a convex pin key 5, the inner wall of the hole of the gear shaft 2 is provided with a pin groove 6 matched with the pin key 5 of the shaft sleeve 4, the gear 3 can freely rotate on the gear shaft 2 through the matching of the shaft sleeve 4, and meanwhile, the shaft sleeve 4 also reduces the abrasion of the inner ring of the gear 3 and prolongs the service life. The base 1 is provided with 2 gears 3 which are engaged with each other.
The specific scheme of using the gear measurement skill training instrument for measurement training is as follows: see figure 5 for relevant letter sizes.
(1) Preparation of the operation
1) The base 1 is taken out and placed at a proper position on the table board.
2) And fixing the base by using bolts.
3) The gear shaft 2 and the gear 3 are taken out and assembled.
4) And taking out the micrometer.
(2) Tooth number determination
The number of teeth can be counted visually.
(3) Diameter of addendum circle
Measuring
When the number of teeth is even
1) And measuring in different radial directions by using a vernier caliper and an outer micrometer.
2) The average value of three groups of measured data is
。
When the number of teeth is an odd number,
3) should be measured first
The value of (c) is calculated according to the following formula.
(4) Determination of the modulus m and the pressure angle
1) The length of the common normal line between tooth widths is measured by using a common normal line micrometer to stride over k teeth
2) Measured across k +1 teeth to a length of
3) Is given by the formula
，m
，
Get 15
Substituting to obtain two modulus values, wherein the modulus value is closest to a set of m sum of standard values
Namely the module and the pressure angle of the measured gear.
(5) Gear backlash measurement
1) The fixed gap between the two fixed gears 3
2) The contact of the dial indicator is contacted with the part near the tooth profile reference circle (the part near the tooth height middle point) of the gear 3, and the travel direction of the contact is vertical to the tooth profile as much as possible
3) The movable gear 3 is rotated repeatedly, and the reading of the dial indicator is the gear clearance of the pair of gears 3.
The utility model discloses cooperation measuring tool and spanner, regulation clearance, through the calculation of measurement and formula, the parameter value that the measurable gear is relevant carries out multinomial measurement training such as number of teeth, addendum circle diameter, modulus m and pressure angle, gear clearance, reaches gear measurement skill generation purpose in the mechanical maintenance skill, accomplishes the measurement training of the relevant content of gear.
Above is the utility model discloses a preferred embodiment, all rely on the utility model discloses the change that technical scheme made, produced functional action does not surpass the utility model discloses during technical scheme's scope, all belong to the utility model discloses a protection scope.
Claims (3)
1. A gear measurement skill training device for teaching is characterized by comprising a base (1), a gear shaft (2) and a gear (3), an inverted T-shaped sliding chute (7) is arranged on the base (1), the opening of the sliding chute (7) is upward, two sides of the opening of the sliding chute (7) are respectively provided with a thin strip-shaped mounting groove (8), the bottom of the gear shaft (2) is provided with an installation block (9), the gear shaft (2) is vertical to the installation block (9), threaded holes (10) are formed in two ends of the mounting block (9), the mounting block (9) at the bottom of the gear shaft (2) is arranged in the sliding groove (7) of the base (1) and can move along the sliding groove (7), the threaded holes (10) at the two ends of the mounting block (9) are positioned under the mounting groove (8) on the base (1), the gear shaft (2) can be fixed on the base (1) through a fastening bolt (11); the gear (3) is sleeved on the gear shaft (2).
2. The gear measurement skill training device for teaching as defined in claim 1, further comprising a sleeve (4) sleeved on the gear shaft (2), wherein the gear (3) is sleeved on the sleeve (4), a protruding pin key (5) is arranged on the outer side of the sleeve (4), and a pin groove (6) matched with the pin key (5) of the sleeve (4) is arranged on the inner wall of the hole of the gear shaft (2).
3. Gear measurement skill training aid for teaching purposes according to claim 1, characterised in that on the base (1) 2 gears (3) are mounted in mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021926000.1U CN212724470U (en) | 2020-09-07 | 2020-09-07 | Gear measurement skill training appliance for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021926000.1U CN212724470U (en) | 2020-09-07 | 2020-09-07 | Gear measurement skill training appliance for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212724470U true CN212724470U (en) | 2021-03-16 |
Family
ID=74925314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021926000.1U Active CN212724470U (en) | 2020-09-07 | 2020-09-07 | Gear measurement skill training appliance for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212724470U (en) |
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2020
- 2020-09-07 CN CN202021926000.1U patent/CN212724470U/en active Active
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