Special gauge for cartridge valve mounting hole of loader drive axle gearbox

Abstract

The utility model discloses a special gauge for a cartridge valve mounting hole of a loader drive axle gearbox. The special gauge comprises a go gauge end, a hole depth qualified line, a middle step and a no-go gauge end, the no-go gauge end is arranged at the upper end, and the no-go gauge end adopts the upper tolerance size of the hole diameter of the mounting valve hole; the go gauge end is arranged at the lower end, and the bore diameter lower tolerance size of the mounting valve hole is adopted by the go gauge end; and the hole depth qualified line is engraved on the middle step of the special gauge. The device is simple and compact in structure, low in manufacturing cost, rapid and efficient in operation and accurate and reliable in detection, realizes rapid and accurate detection of the size of the mounting valve hole of the cartridge valve, and ensures that the size of the mounting valve hole meets design requirements.

Description

TECHNICAL FIELD

[0001] The utility model relates to loader drive axle gearbox auxiliary device technical field, concretely relates to loader drive axle gearbox plug -in valve mounting hole special gauge. BACKGROUND

[0002] The development trend of high -end loader gearbox is high efficiency transmission and automation gear shifting, therefore high -end gearbox gear position is increasing gradually, and the switching action of gear position is gradually replaced by mechanical gear shifting for electro -hydraulic drive gear shifting, for this, plug -in valve needs to be installed in the related position of gearbox to realize automatic gear shifting function. In order to guarantee the normal work of plug -in valve, the precision requirement of valve hole is higher, and then the detection of valve hole also proposes higher requirement. Therefore, it is necessary to develop a special gauge for checking the hole diameter and depth of valve hole to detect the size of plug -in valve mounting valve hole quickly and accurately, ensure that the size of mounting valve hole meets the design requirement. SUMMARY

[0003] The utility model discloses a simple and compact structure, low manufacturing cost, quick and efficient operation, accurate and reliable detection loader drive axle gearbox plug -in valve mounting hole special gauge is provided to realize the quick and accurate detection of plug -in valve mounting valve hole size, ensure that the size of mounting valve hole meets the design requirement.

[0004] To realize the above -mentioned purpose, the utility model loader drive axle gearbox plug -in valve mounting hole special gauge includes through gauge end 1, hole depth qualified line 3, intermediate step 5 and stop gauge end 4, the stop gauge end 4 is equipped in the upper end, and the stop gauge end 4 adopts the hole diameter upper tolerance size of mounting valve hole, the through gauge end 1 is equipped in the lower end, and the through gauge end 1 adopts the hole diameter lower tolerance size of mounting valve hole, the hole depth qualified line 3 is engraved on the intermediate step 5 of special gauge.

[0005] When operating, first, through gauge end 1 is inserted into the measured hole 2, and the hole depth scale line 3 is observed, if the through gauge cannot be inserted into the mounting valve hole, then it is unqualified, if the through gauge enters the measured hole 2 completely, the width of hole depth scale line 3 is consistent with the hole depth tolerance band requirement, at this time, if the mounting valve hole end face is flush with hole depth scale line 3, and does not exceed the scale line width, then it is qualified, otherwise, it is unqualified. After detection is qualified, the direction of gauge is reversed, and stop gauge end 4 is inserted into the measured hole 2 again, at this time, the gauge should not be inserted into the measured hole 2, otherwise, it is unqualified.

[0006] The loader drive axle gearbox plug -in valve mounting hole special gauge with the above structure has the following technical features and beneficial effects:

[0007] 1. The new structure of the go-no-go gauge is adopted, which has the go gauge end and the stop gauge end structure of the common go-no-go gauge, and a new step is additionally arranged on the go gauge end 1 for marking a hole depth qualified line 3, the scale line is converted according to the hole depth requirement, and the hole diameter and the hole depth of the valve mounting hole can be detected at the same time;

[0008] 2. The hole diameter and the hole depth of the valve mounting hole can be quickly detected, the size is ensured to be within the tolerance range of the design requirement, the detection efficiency is greatly improved, and the product quality is ensured;

[0009] 3. The structure is simple and compact, the manufacturing cost is low, and the operation is quick and efficient. DETAILED DESCRIPTION

[0010] Figure 1 is the working state main sectional view structural schematic diagram of the special gauge for the loader drive axle gearbox plug-in valve mounting hole.

[0011] The go gauge end 1, the measured hole 2, the hole depth qualified line 3, the stop gauge end 4 and the intermediate step 5. DETAILED DESCRIPTION

[0012] The specific embodiments of the special gauge for the loader drive axle gearbox plug-in valve mounting hole of the utility model will be further explained in detail in combination with the drawings.

[0013] Figure 1 As shown, the special gauge for the loader drive axle gearbox plug-in valve mounting hole of the utility model comprises a go gauge end 1, a hole depth qualified line 3, an intermediate step 5 and a stop gauge end 4; the stop gauge end 4 is arranged at the upper end, and the stop gauge end 4 adopts the upper tolerance size of the hole diameter of the valve mounting hole; the go gauge end 1 is arranged at the lower end, and the go gauge end 1 adopts the lower tolerance size of the hole diameter of the valve mounting hole; the hole depth qualified line 3 is marked on the intermediate step 5 of the special gauge.

[0014] When the valve mounting hole is measured, the go gauge end 1 is the lower tolerance size of the hole diameter, and if the go gauge end 1 can be easily inserted into the measured hole 2, it is qualified, and if the go gauge end 1 cannot be inserted, it is unqualified; when the go gauge end 1 is inserted to the bottom, the hole depth qualified line 3 is just flush with the hole end surface of the measured hole 2, at this time, the hole depth is qualified, if the qualified line is not flush with the hole end surface, the hole depth is unqualified; the go-no-go gauge is turned over, the stop gauge end 4 is downward, and the size of the stop gauge end 4 is the upper tolerance of the hole diameter, if the stop gauge end 4 cannot be inserted into the measured hole 2 at this time, it is qualified, and if the stop gauge end 4 can be inserted, it is unqualified.

Claims

1. A special gauge for loader drive axle gearbox plug-in valve mounting hole, comprising a through gauge end (1) and a stop gauge end (4), the stop gauge end (4) is arranged at the upper end, and the through gauge end (1) is arranged at the lower end; characterized in that: It also includes the middle step (5) and hole depth qualified line (3), the hole depth qualified line (3) is engraved on the middle step (5) of special gauge;The end of the gauge (4) adopts the upper tolerance size of the hole diameter of the installed valve hole, and the end of the gauge (1) adopts the lower tolerance size of the hole diameter of the installed valve hole. ​

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