CN105180772A - Diesel engine meshing gear tooth space measuring device and method - Google Patents
Diesel engine meshing gear tooth space measuring device and method Download PDFInfo
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- CN105180772A CN105180772A CN201510210686.1A CN201510210686A CN105180772A CN 105180772 A CN105180772 A CN 105180772A CN 201510210686 A CN201510210686 A CN 201510210686A CN 105180772 A CN105180772 A CN 105180772A
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Abstract
The invention discloses a diesel engine meshing gear tooth space measuring device and method. The device comprises a straight rod, a bending rod, a plurality of connection bolts, a dial indicator and a magnetic base. A reference screw is fixed in an axis of a cooling water pump shaft head end. The other end of the blending rod bends outwardly to form an inclined rod. The middle part of the straight rod is fixedly connected with a cross bar vertically. A plurality of vertical scribed lines are carved in the cross bar. The distance of each vertical scribed line to the axis of the cooling water pump shaft is equal to a radius of a gear reference circle of a cooling water pump of a corresponding model. The measuring method is as follows: firstly, the straight rod and the bending rod are connected into a frame through the connection bolts; secondly, one end of the straight rod and one end of the bending rod are clamped at the head part of the reference screw; thirdly, the measuring head of the dial indicator is pressed against the cross bar under the vertical scribed lines; fourthly, a free end intermediate gear is controlled fixed, the cooling water pump gear is rotated, and the dial indicator indicates the tooth gap between the free end intermediate gear and the engaged cooling water pump gear. The measuring device is simple in structure and is convenient to use, the manufacturing cost is low and the assembling efficiency is raised.
Description
Technical field
The present invention relates to a kind of backlash measurement mechanism of meshing gear, be especially a kind ofly applicable to the free end neutral gear of Multiple Type diesel engine and the measurement mechanism of cooling-water pump gears meshing backlash, also relate to backlash measuring method, belong to gear measurement technical field.
Background technology
In the assembling process of gear transmission of diesel engine system, the backlash between each meshing gear need be measured, and adjusted in the margin tolerance that assembly technology specifies.Under the condition that operating space allows, general employing dial gauge directly measures backlash, concrete steps are: be first fixed on by dial indicator bracket on diesel engine stand or other fixed casings, then dial gauge gauge head is propped up the flank of tooth of a tested gear, and it is motionless to pin the another gear be meshed with it, rotate the gear that aforesaid dial gauge gauge head props up the flank of tooth again, now dial gauge gauge head presses down rear position and changes, the reading of corresponding dial gauge pointer also changes, and directly can read this actual backlash numerical value to meshing gear.But the free end neutral gear measuring various diesel engine and cooling-water pump gear engage backlash time, because diesel engine front end case has been assemblied on diesel engine stand, free end neutral gear and cooling-water pump gear are all positioned at head end box, both engagement backlash cannot use preceding method to measure, increase the assembly difficulty of free end neutral gear and cooling-water pump gear, affect efficiency of assembling.
Summary of the invention
The object of this invention is to provide a kind of structure simple, easy to operate and the diesel engine meshing gear backlash measurement mechanism and method that are contained in a pair gears meshing backlash in diesel engine front end case can be measured.
The present invention is achieved by the following technical programs:
A kind of diesel engine meshing gear backlash measurement mechanism, comprise straight-bar, bent rod, several coupling bolt, dial gauge and magnet base, reference screw is fixed on the axis of the cooling-water pump spindle nose end that cooling-water pump gear is housed; The horizontal other end bent outward in bent rod one end is converted into brace, vertically with cross bar in the middle part of straight-bar is fixedly connected with, and cross bar is carved with several vertical groove, and each vertical groove equals the cooling-water pump gear compound graduation radius of circle of corresponding model to the distance of chilled water pump shaft axis; Straight-bar one end and the horizontal ends of bent rod are clamped in two relative parallel side of reference screw head, and several coupling bolt passes across in the middle part of straight-bar and brace respectively, is fixedly connected into framework with brace, straight-bar; Magnet base is fixed on head end box end face, under dial gauge is supported on cross bar by the extension bar on magnet base, under dial gauge gauge head is resisted against the vertical groove of correspondence position cross bar.
Object of the present invention can also be realized further by following technical measures.
Aforesaid diesel engine meshing gear backlash measurement mechanism, the angle that the wherein said bent rod other end outwards bends is 10 °.
Aforesaid diesel engine meshing gear backlash measurement mechanism, wherein said 2 coupling bolts are respectively the first coupling bolt and the second coupling bolt, and the length of described first coupling bolt is greater than the second coupling bolt; Two hold-down nuts are separately fixed on inside straight-bar, and the first coupling bolt is rotary with clamp nut, and described clamp nut is resisted against on inside bent rod.
Use a method for diesel engine meshing gear backlash measurement mechanism, comprise the following steps:
1) the first coupling bolt, the second coupling bolt that pass across bent rod respectively connect into framework by the hold-down nut on straight-bar, and the clamp nut on the first coupling bolt is tightened on bent rod medial surface;
2) horizontal ends of straight-bar one end with bent rod of connecting into framework is clamped in two relative parallel side of reference screw head respectively, tighten the clamp nut inside the first coupling bolt, the second coupling bolt and bent rod, make the horizontal ends of straight-bar one end and bent rod tightly be clipped on reference screw head;
3) magnet base is fixed on head end box end face, under dial gauge is supported on cross bar by the extension bar on magnet base, and under dial gauge gauge head being resisted against the vertical groove of cross bar, described vertical groove is corresponding with the cooling-water pump gear compound graduation radius of circle of respective model diesel engine, then dial gauge dial plate is turned to zero-bit;
4) the free end neutral gear controlling diesel engine is motionless, stir cooling-water pump impeller clockwise, drive coaxial cooling-water pump pinion rotation, cooling-water pump gear presses down dial gauge gauge head, what indicate dial gauge gauge head after dial gauge indicators turn moves down distance, and this moves down the backlash that distance is free end neutral gear and the cooling-water pump gear engaged.
Backlash measurement mechanism structure of the present invention is simple, easy to use, low cost of manufacture, tightens the clamp nut inside brace, just can promote the horizontal ends clamping reference screw head of bent rod, backlash measurement mechanism is firmly fixed on chilled water pump shaft.Because the vertical groove on cross bar outside bent rod to equal the cooling-water pump gear compound graduation radius of circle of corresponding model to the distance of chilled water pump shaft axis, thus the free end neutral gear of the cooling-water pump gear with diesel engine that are positioned at head end box is engaged backlash and transfer to outside head end box and measure.Measuring method of the present invention adopts the free end neutral gear of diesel engine motionless, and cooling-water pump gear driven cross bar rotates the method pressing down the movement of dial gauge gauge head, and what can accurately measure neutral gear and cooling-water pump gear engages backlash.The present invention has captured head end box inner cooling water pump gear and has engaged the difficult problem that backlash cannot measure with the free end neutral gear of diesel engine, improves efficiency of assembling.
Advantage and disadvantage of the present invention, by for illustration and explanation for the non-limitative illustration passing through preferred embodiment below, these embodiments, only provide as an example with reference to accompanying drawing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is that enlarged drawing is looked on a left side of Fig. 1.
Embodiment
Below in conjunction with the measurement embodiment of the free end neutral gear of accompanying drawing and L16 diesel engine and cooling-water pump gears meshing backlash, the invention will be further described.
As depicted in figs. 1 and 2, the present embodiment comprises straight-bar 1, bent rod 2,2 coupling bolts 3, dial gauge 4 and magnet bases 5, and reference screw 6 is fixed on the axis of chilled water pump shaft 8 spindle nose end, chilled water pump shaft 8 is equipped with cooling-water pump gear 7.Bent rod 2 right-hand member is horizontal ends 21, and left end bent outward is converted into brace 22.Vertical with cross bar 11 soldered in the middle part of straight-bar 1, cross bar 11 is carved with the 3 vertical grooves 111 in road, the 3 vertical grooves 111 in road are respectively d1, d2 and d3 to the distance of chilled water pump shaft 8 axis, and d1, d2 and d3 equal the reference radius of the cooling-water pump gear 7 of L16, L21, L27 diesel engine respectively.Straight-bar 1 right-hand member and the horizontal ends 21 of bent rod 2 are clamped in two relative parallel side of reference screw 6 hexagonal head, and 2 coupling bolts 3 pass across in the middle part of straight-bar 1 and brace 21 respectively, are fixedly connected into framework with brace 21, straight-bar 1.
The angle [alpha] that bent rod 2 left end outwards bends is 10 °.Make to be greater than right-hand member spacing with straight-bar 1 with the integral framework left end spacing that is fixedly connected with of bent rod 2 by 2 coupling bolts 3, be convenient to tighten clamp nut 33, thus the horizontal ends 21 of straight-bar 1 right-hand member and bent rod 2 can be made to clamp reference screw 6 head.
As shown in Figure 1,2 coupling bolts 3 are respectively the first coupling bolt 31 and the second coupling bolt 32, two hold-down nuts 33 are weldingly fixed on inside straight-bar 1, and the first coupling bolt 31 is rotary with clamp nut 34, and described clamp nut 34 is resisted against on inside bent rod 2.Tighten the first coupling bolt 31 and the second coupling bolt 32, and inside the brace 21 of bent rod 2 on clamp nut 34, bent rod 2 can be promoted and rotate clockwise, thus make the horizontal ends 21 of straight-bar 1 right-hand member and bent rod 2 tightly clamp reference screw 6 head.Magnet base 5 is fixed on head end box 10 end face, and dial gauge 4 is supported on cross bar 11 times by the extension bar 51 on magnet base 5, and dial gauge gauge head 41 is resisted against the vertical groove 111 times of cross bar 11 high order end corresponding with L16 diesel engine.
The diesel engine meshing gear backlash measuring method of the present embodiment, comprises the following steps:
1) the first coupling bolt 31, second coupling bolt 32 passing across bent rod 2 respectively connects into framework by the hold-down nut 33 be welded on straight-bar 1, and the clamp nut 34 on the first coupling bolt 31 is tightened on bent rod 2 medial surface.
2) straight-bar 1 right-hand member connecting into framework is clamped in two relative parallel side of reference screw 6 hexagonal head with the horizontal ends 21 of bent rod 2 respectively, tighten the clamp nut 34 inside the first coupling bolt 31, second coupling bolt 32 and bent rod 1, the horizontal ends 21 of straight-bar 1 right-hand member and bent rod 2 is tightly clipped in reference screw 6 hexagonal head.
3) magnet base 5 is fixed on head end box end face 9, dial gauge 4 is supported on cross bar 11 times by the extension bar 51 on magnet base 5, and make dial gauge gauge head 41 be resisted against the vertical groove 111 times of cross bar 11 high order end, this vertical groove 111 represents the position of cooling-water pump gear 7 reference radius of L16 diesel engine, then dial gauge dial plate is turned to zero-bit.
4) the free end neutral gear 9 controlling diesel engine is motionless, stir cooling-water pump impeller clockwise, coaxial cooling-water pump gear 7 is driven to rotate, cooling-water pump gear 7 presses down dial gauge gauge head 41, what indicate dial gauge gauge head 41 after dial gauge indicators turn moves down distance, and this moves down the backlash that distance is free end neutral gear 9 and the cooling-water pump gear 7 engaged.
Backlash measuring method of the present invention is convenient, accurate, quick, is also applicable to the equipment that other directly can not measure engagement backlash.
In addition to the implementation, the present invention can also have other embodiments, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of application claims.
Claims (6)
1. a diesel engine meshing gear backlash measurement mechanism, is characterized in that: comprise straight-bar, bent rod, several coupling bolt, dial gauge and magnet base, and reference screw is fixed on the axis of the cooling-water pump shaft end head that cooling-water pump gear is housed; The horizontal other end bent outward in bent rod one end is converted into brace, vertically with cross bar in the middle part of straight-bar is fixedly connected with, and cross bar is carved with several vertical groove, and each vertical groove equals the cooling-water pump gear compound graduation radius of circle of corresponding model to the distance of chilled water pump shaft axis; Straight-bar one end and the horizontal ends of bent rod are clamped in two relative parallel side of reference screw head, and several coupling bolt passes across in the middle part of straight-bar and brace respectively, is fixedly connected into framework with brace, straight-bar; Magnet base is fixed on head end box end face, under dial gauge is supported on cross bar by the extension bar on magnet base, under dial gauge gauge head is resisted against the vertical groove of correspondence position.
2. diesel engine meshing gear backlash measurement mechanism as claimed in claim 1, is characterized in that: the angle that the described bent rod other end outwards bends is 8 ° ~ 12 °.
3. diesel engine meshing gear backlash measurement mechanism as claimed in claim 2, is characterized in that: the angle that the described bent rod other end outwards bends is 10 °.
4. diesel engine meshing gear backlash measurement mechanism as claimed in claim 1, it is characterized in that: the quantity of described coupling bolt is 2, described 2 coupling bolts lay respectively at cross bar both sides.
5. diesel engine meshing gear backlash measurement mechanism as claimed in claim 4, is characterized in that: described 2 coupling bolts are respectively the first coupling bolt and the second coupling bolt, and the length of described first coupling bolt is greater than the second coupling bolt; Two hold-down nuts are separately fixed on inside straight-bar, and the first coupling bolt is rotary with clamp nut, and described clamp nut is resisted against on inside bent rod.
6. use a method for diesel engine meshing gear backlash measurement mechanism as claimed in claim 1, it is characterized in that: comprise the following steps:
1) the first coupling bolt, the second coupling bolt that pass across bent rod respectively connect into framework by the hold-down nut on straight-bar, and the clamp nut on the first coupling bolt is tightened on bent rod medial surface;
2) horizontal ends of straight-bar one end with bent rod of connecting into framework is clamped in two relative parallel side of reference screw head respectively, tighten the clamp nut inside the first coupling bolt, the second coupling bolt and bent rod, make the horizontal ends of straight-bar one end and bent rod tightly be clipped on reference screw head;
3) magnet base is fixed on head end box end face, under dial gauge is supported on cross bar by the extension bar on magnet base, and under dial gauge gauge head being resisted against the vertical groove of cross bar, described vertical groove is corresponding with the cooling-water pump gear compound graduation radius of circle of respective model diesel engine, then dial gauge dial plate is turned to zero-bit;
4) the free end neutral gear controlling diesel engine is motionless, stir cooling-water pump impeller clockwise, drive coaxial cooling-water pump pinion rotation, cooling-water pump gear presses down dial gauge gauge head, what indicate dial gauge gauge head after dial gauge indicators turn moves down distance, and this moves down the backlash that distance is free end neutral gear and the cooling-water pump gear engaged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510210686.1A CN105180772B (en) | 2015-04-29 | 2015-04-29 | Diesel engine meshing gear backlash measurement apparatus and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510210686.1A CN105180772B (en) | 2015-04-29 | 2015-04-29 | Diesel engine meshing gear backlash measurement apparatus and method |
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| CN105180772A true CN105180772A (en) | 2015-12-23 |
| CN105180772B CN105180772B (en) | 2017-11-21 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2661542A (en) * | 1946-04-04 | 1953-12-08 | Fellows Gear Shaper Co | Apparatus for measuring backlash in gears |
| CN202420391U (en) * | 2011-12-02 | 2012-09-05 | 青特集团有限公司 | Braking clearance adjusting arm tooth gap checking fixture |
| CN202452931U (en) * | 2011-12-26 | 2012-09-26 | 重庆普什机械有限责任公司 | Backlash measurement tool for oil pump |
| CN202853593U (en) * | 2012-10-24 | 2013-04-03 | 哈尔滨东安发动机（集团）有限公司 | Apparatus for measuring assembling tooth space of bevel gear |
| CN204831134U (en) * | 2015-04-29 | 2015-12-02 | 中船动力有限公司 | Diesel engine meshed gear tooth clearance measuring device |
-
2015
- 2015-04-29 CN CN201510210686.1A patent/CN105180772B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2661542A (en) * | 1946-04-04 | 1953-12-08 | Fellows Gear Shaper Co | Apparatus for measuring backlash in gears |
| CN202420391U (en) * | 2011-12-02 | 2012-09-05 | 青特集团有限公司 | Braking clearance adjusting arm tooth gap checking fixture |
| CN202452931U (en) * | 2011-12-26 | 2012-09-26 | 重庆普什机械有限责任公司 | Backlash measurement tool for oil pump |
| CN202853593U (en) * | 2012-10-24 | 2013-04-03 | 哈尔滨东安发动机（集团）有限公司 | Apparatus for measuring assembling tooth space of bevel gear |
| CN204831134U (en) * | 2015-04-29 | 2015-12-02 | 中船动力有限公司 | Diesel engine meshed gear tooth clearance measuring device |
Non-Patent Citations (1)
| Title |
|---|
| 王立华: "齿隙测量工具设计", 《科技与企业》 * |
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Address after: 212211 No. 402, Changjiang Road, Zhenjiang City, Jiangsu Province Patentee after: China Shipbuilding Power Zhenjiang Co.,Ltd. Address before: 402 Changjiang Road, Runzhou District, Zhenjiang City, Jiangsu Province Patentee before: CSSC MARINE POWER Co.,Ltd. |
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