Gear thickness detection device
By introducing an adjustment frame and a fixing component into the gear thickness detection device, and using the transmission gear to drive the measuring plate to rise and fall, the problem of existing devices being unable to detect the overall thickness of oil pump gears is solved, and efficient detection with simplified fixing and positioning is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-04-03
AI Technical Summary
Existing gear thickness detection devices are difficult to perform a single measurement of the overall thickness of oil pump gears, and the fixing and positioning operations are complex.
By setting an adjustment frame and fixing parts on the base, the measuring plate is moved up and down by the transmission gear, and the gear is clamped and fixed by the fixing mechanism, so as to achieve stable detection of gears of different sizes.
This technology enables efficient detection of the overall thickness of oil pump gears, simplifies fixing and positioning operations, and improves the accuracy and efficiency of detection.
Smart Images

Figure CN224080891U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of detection device technology, and in particular to a gear thickness detection device. Background Technology
[0002] In gear oil pumps, gears are key core components. During final assembly, the clearance between the gear end face and the pump body must be strictly controlled. If the clearance is too small, the pump may seize up after overheating during operation; if the clearance is too large, poor sealing will result in insufficient pressure, low pump efficiency, and high energy consumption. Therefore, the thickness of the oil pump gears needs to be precisely measured during manufacturing. Existing testing equipment generally uses a probe to measure the thickness of the oil pump gears.
[0003] In the process of developing this application, the inventors discovered the following problems with the prior art: Currently, most existing gear thickness detection devices generally use a detection probe to detect the thickness of oil pump gears. However, since the position of the detection probe is fixed, it is difficult for the detection device to detect the overall thickness of the oil pump gear in a single operation, which may result in some missed detections. At the same time, the existing detection devices are also relatively complex to fix and position the oil pump gears during use. Therefore, those skilled in the art have provided a gear thickness detection device to solve the problems mentioned in the background art. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a gear thickness detection device. After the measuring plate is set at the front end of the adjustment plate, the transmission shaft with the transmission gear can be rotated to drive the measuring plate to move up and down. The fixed mechanism can assist in fixing the gear after unfolding. The fixing parts and movable rods set on both sides of the lower end face of the base can clamp and fix the gear to be tested.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A gear thickness detection device includes a base, with an adjustment frame fixedly installed at the midpoint of both sides of the upper surface of the base. A fixing member is movably embedded in each of the two adjustment frames, and each of the two fixing members includes an adjustment block. A knob is rotatably embedded at the midpoint of one side of the upper surface of each of the two adjustment blocks, and a second threaded rod is rotatably embedded at the midpoint of the other side of the upper surface of each of the two adjustment blocks. A movable rod is movably embedded in one side of each of the two adjustment blocks.
[0007] A support column is fixedly installed at the midpoint of the rear end of the upper surface of the base. A first threaded rod is rotatably embedded in the front end of the support column. An adjustment plate is movably embedded in the front end of the support column. A measuring plate is movably embedded in the midpoint of the front end of the upper surface of the adjustment plate. A fixing mechanism is installed at the midpoint of the lower surface of the adjustment plate. The fixing mechanism includes a fixing plate. An embedding groove is opened on the lower surface of the fixing plate at both the front and rear ends. A movable plate is provided on the lower surface of the fixing plate at both the front and rear ends.
[0008] Furthermore, a rubber block is movably embedded inside the upper side of the adjusting block, the knob is rotatably embedded on the upper surface of the rubber block at the lower end, and the adjusting block is movably embedded inside the adjusting frame.
[0009] Furthermore, the lower end of the second threaded rod is rotatably embedded on the side of the upper surface of the adjusting block away from the knob, and the upper end of the second threaded rod is threaded through the midpoint of the upper surface of the adjusting bracket.
[0010] Furthermore, the two movable plates are respectively movably embedded in the two embedded slots, and a bidirectional screw is rotatably embedded at the midpoint of the lower end face of the fixed plate. The upper ends of the two movable plates are respectively threaded onto the front and rear ends of the outer surface of the bidirectional screw, and the upper end face of the fixed plate is fixedly set at the midpoint of the lower end face of the adjusting plate.
[0011] Furthermore, a rotating shaft is rotatably embedded on the upper surface of the adjusting plate near the front end, and a transmission gear is fixedly sleeved at the midpoint of the outer surface of the rotating shaft. A rack guide is embedded on the upper end of the rear surface of the measuring plate, and the transmission gear and the rack guide are meshed together.
[0012] Furthermore, the adjusting plate is movably embedded in the front end face of the support column at the rear end, and the adjusting plate is threaded onto the outer surface of the first threaded rod at the rear end.
[0013] Furthermore, rubber pads are fixedly installed on opposite sides of both movable rods, and a scale plate is embedded in the upper part of the front end face of the measuring plate.
[0014] This utility model has the following beneficial effects:
[0015] 1. The gear thickness detection device proposed in this utility model, after fixing the adjustment frame on both sides of the upper end face of the base, can movably embed the fixing member with the first threaded rod inside the adjustment frame. At the same time, the first threaded rod is rotatably inserted through the upper end face of the adjustment frame. When the first threaded rod rotates, it can drive the fixing member to move up and down in the adjustment frame. The fixed member after moving up and down can drive the embedded movable rod to move up and down, so that the movable rod with the rubber pad can better fix gears of different sizes and thicknesses. The knob and rubber block set in the fixing member can fix the position of the extended movable plate, so as to better clamp and fix the outer side of the gear to be tested.
[0016] 2. The gear thickness detection device proposed in this utility model involves movably embedding an adjusting plate into the front end face of a support column. A measuring plate can be movably embedded in the front end of the upper surface of the adjusting plate, and a rotating shaft is rotatably embedded in the front end of the upper surface of the adjusting plate. After a transmission gear is fixedly sleeved on the outer surface of the rotating shaft inside the adjusting plate, the transmission shaft can drive the measuring plate, which is embedded with a rack guide rail, to rise and fall, thereby detecting the thickness of the gear to be measured. After a fixing mechanism is set on the lower end face of the adjusting plate, the movable plate in the fixing mechanism can be extended and adjusted according to the size of the gear to be measured, thereby better fixing gears of different sizes. When no measurement is being performed, the lower end face of the measuring plate and the lower end face of the fixing mechanism remain at the same height. Attached Figure Description
[0017] Figure 1 This is a first axonometric view of the present invention;
[0018] Figure 2 This is a second axonometric view of the present invention;
[0019] Figure 3 This is a cross-sectional schematic diagram of the adjustment frame of this utility model;
[0020] Figure 4 This is a schematic diagram of the adjusting plate of this utility model from the axial side.
[0021] Figure 5 This is a partial cross-sectional view of the adjustment plate of this utility model;
[0022] Figure 6 This is a cross-sectional schematic diagram of the fastener of this utility model;
[0023] Figure 7 This is a cross-sectional schematic diagram of the fixing mechanism of this utility model.
[0024] Legend:
[0025] 1. Support column; 2. First threaded rod; 3. Adjusting frame; 4. Fixing component; 5. Base; 6. Measuring plate; 7. Scale plate; 8. Adjusting plate; 9. Movable rod; 10. Second threaded rod; 11. Rubber pad; 12. Rack and pinion guide; 13. Fixing mechanism; 14. Transmission gear; 15. Rotating shaft; 401. Knob; 402. Rubber block; 403. Adjusting block; 1301. Movable plate; 1302. Fixing plate; 1303. Bidirectional screw; 1304. Embedded groove. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Reference Figures 1 to 7 A gear thickness detection device includes a base 5. An adjustment frame 3 is fixedly installed at the midpoint of both sides of the upper end face of the base 5. A fixing member 4 is movably embedded in each of the two adjustment frames 3. Each fixing member 4 includes an adjustment block 403. A knob 401 is rotatably embedded at the midpoint of one side of the upper end face of each of the two adjustment blocks 403. A second threaded rod 10 is rotatably embedded at the midpoint of the other side of the upper end face of each of the two adjustment blocks 403. A movable rod 9 is movably embedded on one side of each of the two adjustment blocks 403.
[0028] A support column 1 is fixedly installed at the midpoint of the rear end of the upper surface of the base 5. A first threaded rod 2 is rotatably embedded in the front end of the support column 1. An adjustment plate 8 is movably embedded in the front end of the support column 1. A measuring plate 6 is movably embedded in the midpoint of the front end of the upper surface of the adjustment plate 8. A fixing mechanism 13 is installed at the midpoint of the lower surface of the adjustment plate 8. The fixing mechanism 13 includes a fixing plate 1302. An embedding groove 1304 is opened on the lower surface of the fixing plate 1302 at both the front and rear ends. A movable plate 1301 is provided on the lower surface of the fixing plate 1302 at both the front and rear ends.
[0029] Specifically, after adjusting brackets 3 are fixedly installed on both sides of the upper surface of the base 5, fixing members 4 can be movably embedded in the two adjusting brackets 3. At the same time, after a first threaded rod 2 threaded through the upper surface of the adjusting bracket 3 is rotatably embedded in the upper surface of the fixing member 4, the first threaded rod 2 can be rotated to drive the fixing member 4 to move up and down. At the same time, after a movable rod 9 is movably embedded in the fixing member 4, it can clamp the outside of the gear to be tested after movement, thereby assisting in fixing the gear to be tested. At the same time, after an adjusting plate 8 is embedded in the front end of the support column 1, the fixing mechanism can be fixed. 13 is fixed at the midpoint of the lower end face of the adjusting plate 8. When the first threaded rod 2 rotates, it can drive the adjusting plate 8 to move up and down, and at the same time drive the fixing mechanism 13 to press and fix the gear to be tested. After the measuring plate 6 is movably embedded in the front end of the adjusting plate 8, the rotating shaft 15 with the gear can be rotated to drive the measuring plate 6 to move up and down, so that the gear to be tested can be tested. At the same time, when the measuring plate 6 is not testing the gear to be tested, the lower end face of the measuring plate 6 and the lower end face of the fixing mechanism 13 are kept at the same horizontal height.
[0030] Reference Figure 6 A rubber block 402 is movably embedded inside the upper side of the adjusting block 403, and a knob 401 is rotatably embedded on the upper surface of the rubber block 402 near the lower end. The adjusting block 403 is movably embedded inside the adjusting frame 3.
[0031] Specifically, after the rubber block 402 is movably embedded inside the adjusting block 403, the rubber block 402 and the lower end of the knob 401 can be rotatably connected. After rotating the knob 401, the rubber block 402 can be driven to squeeze the embedded movable rod 9, thereby fixing the position of the movable rod 9. After the adjusting block 403 is movably embedded inside the adjusting frame 3, the fixing part 4 can be better adjusted in height.
[0032] Reference Figure 3 and Figure 6 The lower end of the second threaded rod 10 is rotatably embedded on the upper surface of the adjusting block 403 away from the knob 401, and the upper end of the second threaded rod 10 is threaded through the midpoint of the upper surface of the adjusting frame 3.
[0033] Specifically, after the second threaded rod 10 and the upper end face of the adjusting block 403 are rotatably connected, the rotating first threaded rod 2 can drive the fixing part 4 to move up and down in the fixed frame.
[0034] Reference Figure 7Two movable plates 1301 are respectively movably embedded in two embedded slots 1304. A bidirectional screw 1303 is rotatably embedded at the midpoint of the lower end face of the fixed plate 1302. The upper ends of the two movable plates 1301 are respectively threaded onto the front and rear ends of the outer surface of the bidirectional screw 1303. The upper end face of the fixed plate 1302 is fixedly set at the midpoint of the lower end face of the adjusting plate 8.
[0035] Specifically, after the movable plate 1301 is movably embedded in the opened movable slot, the upper end of the movable plate 1301 can be threaded onto the outer surface of the bidirectional screw 1303. When the bidirectional screw 1303 rotates, it can drive the threaded movable plate 1301 to move and adjust in the embedded slot 1304, so that the fixing mechanism 13 can fix the gears to be tested of different sizes.
[0036] Reference Figure 4 and Figure 5 A rotating shaft 15 is rotatably embedded on the upper end face of the adjusting plate 8 near the front end. A transmission gear 14 is fixedly sleeved at the midpoint of the outer surface of the rotating shaft 15. A rack guide rail 12 is embedded on the upper end of the rear end face of the measuring plate 6. The transmission gear 14 and the rack guide rail 12 are meshed and connected.
[0037] Specifically, after the rotating shaft 15 is rotatably embedded in the adjusting plate 8, a transmission gear 14 can be fixedly sleeved on the outer surface of the rotating shaft 15. At the same time, after the rack guide rail 12 is embedded in the rear end face of the measuring plate 6, the transmission gear 14 and the rack guide rail 12 can mesh and connect, so that the rotating shaft 15 and the transmission gear 14 can drive the gear plate to move up and down.
[0038] Reference Figure 1 The adjusting plate 8 is movably embedded in the front end face of the support column 1 at the rear end, and the adjusting plate 8 is threadedly sleeved on the outer surface of the first threaded rod 2 at the rear end.
[0039] Specifically, after the adjusting plate 8 is movably embedded in the front end face of the support column 1, the rear end face of the adjusting plate 8 can be threaded onto the outer surface of the first threaded rod 2. When the first threaded rod 2 rotates, it can drive the adjusting plate 8 to move up and down.
[0040] Reference Figure 1 and Figure 3 Rubber pads 11 are fixedly installed on the opposite side of the two movable rods 9, and a scale plate 7 is embedded in the upper end of the front face of the measuring plate 6.
[0041] Specifically, after fixing a rubber pad 11 on one side of the movable rod 9, the movable rod 9 can be used to assist in fixing the outside of the gear to be measured. After embedding a scale plate 7 on the upper end of the front face of the measuring plate 6, the thickness measured by the measuring plate 6 can be observed and recorded. At the same time, a protrusion is provided on the upper end of the front face of the adjusting plate 8, and the upper end of the protrusion and the zero mark line of the scale plate 7 are kept horizontal.
[0042] Working principle: When testing is required, the operator can place the gear to be tested at the center of the upper surface of the base 5. At the same time, the operator can adjust the size of the fixing mechanism 13 according to the size of the gear to be tested. After adjustment, the first threaded rod 2 can be rotated to drive the adjusting plate 8, which is fixed with the fixing mechanism 13, to press and fix the upper end of the gear to be tested. After the gear to be tested is pressed and fixed by the fixing mechanism 13, the first threaded rod 2 can be rotated to drive the fixing part 4 and the movable rod 9 to adjust the height. After adjustment, the two movable rods 9 can be moved to clamp the outside of the gear to be tested, thereby assisting in fixing the gear to be tested. Rotating the knob 401 in the fixing part 4 can drive the rubber block 402 to clamp the movable plate 1301, thereby fixing the position of the movable plate 1301. After the gear to be tested is fixed, the rotating shaft 15 in the adjusting plate 8 can be rotated to drive the measuring plate 6 embedded in the gear to rise and fall. After the lower end surface of the measuring plate 6 contacts the upper end surface of the base 5, the test data of the gear to be tested can be observed and recorded by the embedded scale plate 7.
[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A gear thickness detection device, comprising a base (5), characterized in that: An adjustment frame (3) is fixedly installed at the midpoint of both sides of the upper end face of the base (5). A fixing member (4) is movably embedded in each of the two adjustment frames (3). Each of the two fixing members (4) includes an adjustment block (403). A knob (401) is rotatably embedded at the midpoint of one side of the upper end face of each of the two adjustment blocks (403). A second threaded rod (10) is rotatably embedded at the midpoint of the other side of the upper end face of each of the two adjustment blocks (403). A movable rod (9) is movably embedded on one side of each of the two adjustment blocks (403). A support column (1) is fixedly installed at the midpoint of the rear end of the upper surface of the base (5). A first threaded rod (2) is rotatably embedded in the front end of the support column (1). An adjustment plate (8) is movably embedded in the front end of the support column (1). A measuring plate (6) is movably embedded in the midpoint of the front end of the upper surface of the adjustment plate (8). A fixing mechanism (13) is provided at the midpoint of the lower surface of the adjustment plate (8). The fixing mechanism (13) includes a fixing plate (1302). An embedding groove (1304) is provided on the lower surface of the fixing plate (1302) at both the front and rear ends. A movable plate (1301) is provided on the lower surface of the fixing plate (1302) at both the front and rear ends.
2. The gear thickness detection device according to claim 1, characterized in that: The adjusting block (403) has a rubber block (402) movably embedded inside its upper side, and the knob (401) is rotatably embedded in the upper surface of the rubber block (402) at its lower end. The adjusting block (403) is movably embedded inside the adjusting frame (3).
3. The gear thickness detection device according to claim 1, characterized in that: The second threaded rod (10) is rotatably embedded at its lower end on the side of the upper surface of the adjusting block (403) away from the knob (401), and the second threaded rod (10) is threaded through the midpoint of the upper surface of the adjusting frame (3) at its upper end.
4. The gear thickness detection device according to claim 1, characterized in that: The two movable plates (1301) are respectively movably embedded in the two embedded slots (1304). A bidirectional screw (1303) is rotatably embedded at the midpoint of the lower end face of the fixed plate (1302). The upper ends of the two movable plates (1301) are respectively threaded onto the front and rear ends of the outer surface of the bidirectional screw (1303). The upper end face of the fixed plate (1302) is fixedly set at the midpoint of the lower end face of the adjusting plate (8).
5. The gear thickness detection device according to claim 1, characterized in that: The upper end face of the adjusting plate (8) is rotatably embedded with a rotating shaft (15) near the front end. A transmission gear (14) is fixedly sleeved at the midpoint of the outer surface of the rotating shaft (15). A rack guide rail (12) is embedded near the upper end of the rear end face of the measuring plate (6). The transmission gear (14) and the rack guide rail (12) are meshed and connected.
6. The gear thickness detection device according to claim 1, characterized in that: The adjusting plate (8) is movably embedded in the front end face of the support column (1) at the rear end, and the adjusting plate (8) is threadedly sleeved on the outer surface of the first threaded rod (2) at the rear end.
7. The gear thickness detection device according to claim 1, characterized in that: Rubber pads (11) are fixedly installed on opposite sides of the two movable rods (9), and a scale plate (7) is embedded in the upper end of the front face of the measuring plate (6).