Gear meshing clearance detection tool

Abstract

The utility model discloses a gear meshing clearance detection tool, and particularly relates to the technical field of gear meshing detection tools, which comprises a bottom plate, a side plate is fixedly arranged on the rear side of the top of the bottom plate, a cylindrical platform is arranged in front of the side plate, and the cylindrical platform is fixed on the top of the bottom plate and used for placing a gear to be detected. An upper flat plate is fixedly arranged at the top of the side plate, a threaded hole is formed in the top of the upper flat plate, and a screw is in threaded connection with the interior of the threaded hole. A to-be-detected gear is fixed through the protective pressing sleeve and the cylindrical platform, the dial indicator is matched with the measuring rod, the weight marking block is placed, meanwhile, the display condition of a pointer of the dial indicator is observed to complete judgment, the whole process operation is convenient and simple, one operator can complete the detection work, the measurement position and the detection force are quantitatively defined, and the detection efficiency is improved. Measurement errors caused by manual replacement are avoided, the production efficiency is improved, meanwhile, the existing difficulties of a finished product inspection procedure are solved, and therefore the production and management cost is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of gear meshing detection tooling, in particular to a gear meshing clearance detection tooling. Background Art

[0002] Gear transmission is widely used in modern traditional manufacturing industry. During the production process, components with angular position relationship and internal and external tooth matching tolerance requirements need to measure the meshing clearance of internal and external teeth of the components according to the process regulations and make qualification judgments.

[0003] The gears to be tested include a rudder shaft with external teeth and a rocker arm with an internal gear ring. The current testing facility is to clamp the two end planes of the rudder shaft, and use a dial indicator to test the side plane of the rocker arm after clamping. After the stand meter is debugged, the rocker arm gear is pressed manually with fingers and the dial indicator is observed at the same time. The gear is judged whether it is qualified according to the pointer swing value. The current testing facilities can meet the needs of the production line, but for the final product inspection process, due to the different inspection personnel, the force of the manual pressing cannot be quantified, and there is a lot of controversy about the inspection results. Summary of the invention

[0004] In view of this, the utility model provides a gear meshing clearance detection tool, which quantifies the measurement position and the size of the detection force, thereby avoiding measurement errors caused by personnel replacement and improving detection efficiency.

[0005] The technical scheme adopted by the utility model is: a gear meshing clearance detection tool, comprising a bottom plate, a side plate is vertically fixed on the rear side of the bottom plate surface, an upper plate is fixed on the top of the side plate, the upper plate passes through the plate surface and is provided with a threaded hole, a screw is threadedly connected to the threaded hole, and a protective pressing sleeve is provided at the bottom end of the screw; a cylindrical platform is provided on the bottom plate in front of the side plate, the cylindrical platform is opposite to the protective lower sleeve in position up and down, and is used to clamp the rocker arm of the gear to be detected, columns are fixed on the bottom plates on both sides of the cylindrical platform, cross adapters are provided on the two columns, and horizontal table frames are fixed on the two cross adapters for installing a dial indicator for detecting the gear; the detection tool also includes a measuring rod, the measuring rod is fixedly connected to the rudder shaft axis of the gear to be detected, the two ends of the measuring rod are respectively in contact with the dial indicator head, and standard weights can be hung on both ends of the measuring rod.

[0006] Furthermore, the measuring rod is fixed to the rudder shaft of the gear to be detected via a positioning shaft and a tightening screw.

[0007] Furthermore, a pull ring is provided at the top of the standard weight block, and annular mounting grooves are provided on the outer circumferences of both ends of the measuring rod, and the pull rings are respectively arranged in the two annular mounting grooves.

[0008] Furthermore, the outer walls of the measuring rod near both ends are processed with smooth flat surfaces, and the smooth flat surfaces at both ends are in the same plane.

[0009] Furthermore, the top of the screw is processed with a step circle and a milled flat surface, and the top of the screw is provided with a knurled handle, and the knurled handle is fixed to the screw through a first top screw. The operator drives the screw to rotate with the help of the knurled handle, so as to facilitate the adjustment of the position of the protective sleeve.

[0010] Furthermore, the lower end of the screw is processed with a smooth outer circle and an annular groove, the protective sleeve is sleeved on the outside of the smooth outer circle and the annular groove, and the protective sleeve is fixed to the screw by a second top screw, which is convenient for installing and removing the protective sleeve.

[0011] Furthermore, the cross adapter and the column, and the cross adapter and the horizontal meter frame are fixed by knurled flat head screws, so that the positions of the cross adapter and the horizontal meter frame can be adjusted easily.

[0012] Furthermore, a weight-reducing groove is provided at the center of the bottom of the base plate, and a plurality of threaded through holes are provided at the bottom of the base plate for fixing the side plates, the cylindrical platform and the columns to the base plate.

[0013] The beneficial effects of the utility model are: the gear to be tested is fixed by the protective sleeve at the lower end of the screw rod and the cylindrical platform, and then the dial indicator is used in conjunction with the measuring rod, and the weight blocks are placed on both ends of the measuring rod in sequence, and the display of the dial indicator pointer is observed to complete the gap detection. The whole process is convenient and simple to operate, and one operator can complete the detection work. The measurement position and the size of the detection force are quantitatively defined, avoiding measurement errors caused by personnel replacement, improving production efficiency, and solving the existing difficulties in the finished product inspection process, thereby effectively reducing production and management costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is an overall side view of the utility model;

[0016] Figure 3 It is a top view of the upper plate of the utility model;

[0017] Figure 4 It is a top view of the measuring rod of the utility model;

[0018] Figure 5 This is a structural diagram of the screw and protective sleeve of the utility model;

[0019] Figure 6 This is a schematic diagram of the utility model in use.

[0020] The accompanying drawings are marked as follows: 1. Base plate; 2. Side plate; 3. Cylindrical platform; 4. Upper plate; 5. Threaded hole; 6. Screw; 7. Protective sleeve; 8. Column; 9. Cross adapter; 10. Level table frame; 11. Measuring rod; 12. Positioning shaft; 13. Tension screw; 14. Weight block; 15. Pull ring; 16. Annular mounting groove; 17. Knurled handle; 18. Knurled flat head screw; 19. Weight reduction groove; 20. Gear to be tested; 21. Dial indicator. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] like Figures 1 to 6 As shown, the utility model provides a gear meshing clearance detection tool, including a base plate 1, a side plate 2, a cylindrical platform 3 and a measuring rod 11. A side plate 2 is vertically fixed on the rear side of the plate surface of the base plate 1. A vertical cylindrical platform 3 is provided on the plate surface of the base plate 1 in front of the side plate 2. An upper plate 4 is fixed on the top of the side plate 2. The upper plate 4 and the side plate 2 are tightened and fixed by screws to improve the connection firmness between the upper plate 4 and the side plate 2. The upper plate 4 is provided with a vertically penetrating threaded hole 5. A screw 6 is connected to the inner thread of the threaded hole 5. A knurled handle 17 is provided at the top end of the screw 6, and a protective pressing sleeve 7 is provided at the bottom end. Specifically, a step circle and a milled flat surface are processed at the top end of the screw 6. The knurled handle 17 is fixed to the top end of the screw 6 by a top screw. The lower end of the screw 6 is processed with a smooth outer circle and an annular groove, and the protective sleeve 7 is sleeved on the outer side of the smooth outer circle and the annular groove, and the protective sleeve 7 is fixed to the screw 6 by a second top screw, which is convenient for installing and removing the protective sleeve 7. It should be noted that the protective sleeve 7 at the bottom end of the screw 6 is opposite to the cylindrical platform 3, and the rocker arm in the gear 20 to be detected can be squeezed and fixed between the protective sleeve 7 and the cylindrical platform 3.

[0023] The columns 8 are symmetrically fixed on the bottom plates 1 on both sides of the cylindrical platform 3. A cross adapter 9 is provided on each of the two columns 8. The two cross adapters 9 are symmetrically positioned and can both fix the horizontal meter frame 10. The dial gauges 21 can be vertically mounted on the two horizontal meter frames 10, and the initial positions of the two dial gauges 21 heads are on the same horizontal plane. The cross adapter 9 and the columns 8, and the cross adapter 9 and the horizontal meter frame 10 are fixed by knurled flat head screws 18, so that the operator can adjust the position of the cross adapter 9 and the horizontal meter frame 10.

[0024] The middle part of the shaft of the measuring rod 11 is vertically provided with a positioning shaft 12 and a tightening screw 13. The measuring rod 11 and the axis of the rudder shaft of the gear 20 to be detected are fixed by the positioning shaft 12 and the tightening screw 13 to prevent the rudder shaft and the measuring rod 11 from rotating relative to each other during detection.

[0025] A standard weight block 14 can be hung on both ends of the measuring rod 11. Pull rings 15 are fixed on the top of the two standard weight blocks 14. Annular mounting grooves 16 are provided on the outer circumferences of both ends of the measuring rod 11, and two pull rings 15 are respectively arranged in the two annular mounting grooves 16. Smooth flat surfaces are processed near the two ends of the measuring rod 11. The smooth flat surfaces at both ends of the measuring rod 11 are in the same plane. The dial gauge 21 contacts the smooth flat surface, which is convenient for measuring the meshing clearance of the gear 20 to be tested.

[0026] When in use, the operator uses the positioning shaft 12 and the tightening screw 13 to fix the measuring rod 11 and the rudder shaft of the gear to be tested 20. At this time, the operator turns the knurled handle 17 to drive the screw 6 to rotate, and the screw 6 drives the protective pressing sleeve 7 to move down to a position higher than the gear to be tested 20, and then puts the rocker arm of the gear to be tested 20 on the top of the cylindrical platform 3, and then turns the knurled handle 17 to press the protective pressing sleeve 7 on the extended part of the rocker arm of the gear to be tested, so as to firmly clamp and fix the rocker arm.

[0027] The left and right sides of the cylindrical platform 3 are used as direction references. The operator reads the value of the dial gauge 21 fixed on the left column 8, and the standard weight block 14 needs to be hung on the right end of the measuring rod 11. At this time, the end of the dial gauge 21 touches the smooth flat surface position of the left end of the measuring rod 11, and the meshing clearance value of the gear to be measured is obtained. To read the value of the dial gauge 21 fixed on the right column 8, the standard weight block 14 needs to be hung on the left end of the measuring rod 11. At this time, the end of the dial gauge 21 touches the smooth flat surface position of the right end of the measuring rod 11, and the meshing clearance value of the gear to be measured is obtained again. After obtaining the value measured by the dial gauge 21, the accurate meshing clearance value can be detected. The whole process is convenient and simple to operate, and one operator can complete the detection work. And due to the consistency of the weight of the standard weight block 14, the measurement position and the size of the detection force are quantitatively defined, avoiding the measurement error caused by personnel replacement, improving production efficiency while solving the existing difficulties in the finished product inspection process, thereby effectively reducing production and management costs.

Claims

1. A gear meshing clearance detection tool, comprising a bottom plate, characterized in that: A side plate is vertically fixed on the rear side of the bottom plate surface, an upper plate is fixed on the top of the side plate, a threaded hole is formed on the upper plate through the plate surface, a screw is threadedly connected to the inner thread of the threaded hole, and a protective sleeve is provided at the bottom end of the screw; a cylindrical platform is provided on the bottom plate in front of the side plate, the cylindrical platform and the protective lower sleeve are positioned opposite to each other up and down, and are used to clamp the rocker arm of the gear to be tested, columns are fixed on the bottom plates on both sides of the cylindrical platform, cross adapters are provided on the two columns, and horizontal table frames are fixed on the two cross adapters for installing a dial indicator for testing the gear; the testing tool also includes a measuring rod, which is fixedly connected to the axis of the rudder shaft of the gear to be tested, and both ends of the measuring rod are in contact with the head of the dial indicator respectively, and standard weights can be hung on both ends of the measuring rod.

2. The gear meshing clearance detection tool according to claim 1, characterized in that: A pull ring is arranged at the top of the standard weight block, and annular mounting grooves are provided at the outer circumferences of both ends of the measuring rod, and the pull rings are respectively arranged in the two annular mounting grooves.

3. The gear meshing clearance detection tool according to claim 1, characterized in that: The measuring rod is fixed to the rudder shaft of the gear to be detected via a positioning shaft and a tightening screw.

4. The gear meshing clearance detection tool according to claim 1, characterized in that: The outer walls of the measuring rod close to both ends are processed with smooth flat surfaces, and the smooth flat surfaces at the two ends are in the same plane.

5. The gear meshing clearance detection tool according to claim 1, characterized in that: The top of the screw is processed with a step circle and a milled flat surface, and the top of the screw is provided with a knurled handle, and the knurled handle is fixed to the screw through a first top screw. The operator drives the screw to rotate with the help of the knurled handle, so as to facilitate the adjustment of the position of the protective sleeve.

6. The gear meshing clearance detection tool according to claim 1, characterized in that: The lower end of the screw is processed with a smooth outer circle and an annular groove, the protective pressing sleeve is sleeved on the outside of the smooth outer circle and the annular groove, and the protective pressing sleeve is fixed to the screw by a second top screw, which is convenient for installing and removing the protective pressing sleeve.

7. The gear meshing clearance detection tool according to claim 1, characterized in that: The cross adapter and the column, and the cross adapter and the horizontal meter frame are fixed by knurled flat head screws, so that the positions of the cross adapter and the horizontal meter frame can be adjusted easily.

8. The gear meshing clearance detection tool according to claim 1, characterized in that: A weight-reducing groove is provided at the center of the bottom of the base plate, and a plurality of threaded through holes are provided at the bottom of the base plate for fixing the side plates, the cylindrical platform and the columns to the base plate.

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