A starter end cover hole group position detection device
By designing a starter end cover hole group position detection device, and utilizing the outer disc body and ball bearing support structure, a fast and convenient bearing hole axis detection was achieved, solving the problem of bearing seat hole center axis deviation in starter end cover manufacturing and improving detection efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG JINSHIJIE AUTOPARTS CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-07-28
AI Technical Summary
During the manufacturing process of starter end covers, the center axis of the bearing seat holes of the front and rear covers is prone to deviation, which can cause stress or difficulty in penetration when long bolts are fixed. Existing technology makes it difficult to efficiently detect and ensure the perpendicularity of the two sets of bearing seat holes.
A starter end cover hole group position detection device was designed, including an outer disc, a support part, a frame and a detection end. Through simple lateral fastening and pressing operations, the device uses the contact between the slider and the bearing seat to provide support force, and detects whether the axis of the bearing hole is parallel to the axis of the bearing seat. This avoids scratches caused by rigid contact and achieves fast and convenient detection.
It significantly improves testing efficiency, enabling batch testing of starter end covers in a very short time. The operation is simple; the pass/fail status can be determined by whether the sleeve smoothly enters the bearing hole, ensuring the perpendicularity of the bearing hole axis to the bearing seat end face, thus improving the functionality and reliability of the testing.
Smart Images
Figure CN224568091U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of starter end cover manufacturing technology, and in particular to a starter end cover hole group position detection device. Background Technology
[0002] The function of the starter motor is to convert the electrical energy of the battery into mechanical energy, drive the engine flywheel to rotate, and enable the engine to start from a standstill and run on its own.
[0003] The starter motor housing is typically assembled from a front cover, a middle cover, and a rear cover, and secured with two or more long bolts to form a robust unit. Therefore, the center axes of the bearing housing holes on the front and rear covers must coincide. Any deviation can cause stress during bolt fixing or make it difficult to pass through the bearing housing holes in the front and rear covers. During starter motor end cover manufacturing, the front and rear covers are cast separately to obtain blanks. After casting, subsequent finishing is required. Finishing involves clamping the starter motor end cover, milling the bearing housing surface, and then finishing the bearing housing holes. These two steps are usually performed separately and require secondary clamping. This can easily lead to the machined outer surface of the bearing housing not being perpendicular to the bearing housing hole. Therefore, when the outer ends of the two bearing housings are in contact, it can cause the long bolts to have difficulty extending through the bearing housing hole, resulting in fit problems. Thus, it is necessary to sample and inspect different batches of parts separately. Utility Model Content
[0004] In view of the above-mentioned problems, the technical problem to be solved by this utility model is to provide a starter end cover hole group position detection device.
[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a starter end cover hole group position detection device, including a starter end cover and a bearing seat integrally formed on the starter end cover, a bearing hole for mating is opened on the end face of the bearing seat, and a detection component for detection is provided at the outer end of the bearing seat of the starter end cover, the detection component including:
[0006] The outer disc body is used to fit against the outer side of the bearing housing;
[0007] The support part, installed at the lower end of the outer plate, is used to push the bearing seat so that it fits against the outer plate;
[0008] The frame is installed on the upper end of the outer plate. The frame has a detection end that can extend into the bearing hole. The detection end is used to detect whether the axis of the bearing hole is parallel to the axis of the bearing seat.
[0009] A further preferred embodiment of this utility model is that the lower end face of the outer disc is flat, for mating with the milled end face of the bearing seat.
[0010] A further preferred embodiment of this utility model is: a limiting layer is fixed on the lower end face of the outer disc body, the limiting layer is used to fit against the side of the bearing seat, and is used to position the bearing seat.
[0011] A further preferred embodiment of this utility model is as follows: the support part includes a support frame fixed to the lower end of the outer plate body and a support sleeve integral with the support frame. A support spring is provided inside the support sleeve. A support shaft is fixed to the outer end of the support spring. The support shaft is sleeved inside the support sleeve. The outer end face of the support shaft has a sliding opening. A rotatable slider is embedded in the sliding opening. The slider abuts against the lower end face of the bearing seat.
[0012] A further preferred embodiment of this utility model is that the inner wall of the sliding groove and the outer wall of the sliding ball are fitted together, and the fitting surface is smooth.
[0013] A further preferred embodiment of this utility model is: the upper end face of the frame has an integral positioning sleeve layer that coincides with the axis of the bearing hole, the detection end is sleeved in the positioning sleeve layer, and when the detection end moves downward, it extends into the interior of the bearing hole.
[0014] A further preferred embodiment of this utility model is: the frame is arranged in a cross shape and is detachably fixed to the upper end of the outer plate, and both ends of the cross of the frame have a downwardly extending shaft portion.
[0015] The detection end includes two sets of sleeve shafts and two return springs. The two return springs are fixed to the upper ends of the two sets of sleeve shafts respectively. The sleeve shafts are sleeved with the shafts. The upper ends of the return springs are fixed to the frame. The sleeve shafts are sleeved in the positioning sleeve layer. The sleeve shafts are pressed downwards to extend into the bearing holes.
[0016] A further preferred embodiment of this utility model is that the outer wall of the sleeve is smooth, and its outer wall fits against the inner wall of the positioning sleeve layer.
[0017] A further preferred embodiment of this utility model is: a connecting rod is fixed between the two sets of sleeve shafts, and pressing the connecting rod is used to drive the two sets of sleeve shafts to move synchronously.
[0018] A further preferred embodiment of this utility model is: the limiting layer is a metal sheet with a zigzag arrangement that fits against the side of the bearing seat.
[0019] Compared with the prior art, the advantages of this utility model are:
[0020] 1. During the batch sampling inspection of starter end covers, the inspection of a starter end cover can be completed in a very short time through simple lateral fastening, pressing and observation actions, which significantly improves the inspection efficiency. The operator only needs to put the starter end cover in, press it and feel whether the sleeve shaft enters the bearing hole smoothly to judge whether it is qualified or not.
[0021] 2. By using a slider to contact the bearing housing and provide support, scratches that may be caused by rigid contact are avoided; the connecting rod allows two bearing holes to be tested simultaneously with just one pressing action, further improving efficiency and transforming the perpendicularity test of the bearing hole axis and the bearing housing end face into a simple "pass or fail" functional test, which is easy to operate. Attached Figure Description
[0022] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be regarded as a limitation on the scope of the present invention. In addition, unless otherwise specified, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.
[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0024] Figure 2 This is a schematic diagram of the overall structure of this utility model from another direction;
[0025] Figure 3 This is a schematic diagram of the separation structure of the starter end cover and the detection component of this utility model;
[0026] Figure 4 This is a schematic diagram of the separation structure of the detection component and the support component of this utility model;
[0027] Figure 5 This is a partial cross-sectional structural diagram of the support part of this utility model;
[0028] Figure 6 This is a schematic diagram of the detection end structure of this utility model.
[0029] In the diagram: 1. Starter end cover; 11. Bearing housing; 12. Bearing hole; 2. Detection component; 21. Outer disc; 211. Positioning sleeve; 22. Support part; 221. Support frame; 222. Support sleeve; 223. Support spring; 224. Support shaft; 225. Sliding port; 226. Sliding ball; 23. Limiting layer; 24. Frame; 241. Shaft; 25. Detection end; 251. Sleeve shaft; 252. Return spring; 253. Connecting rod. Detailed Implementation
[0030] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.
[0031] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.
[0032] This embodiment mainly describes a starter motor end cover hole group position detection device. Please refer to [link / reference needed]. Figures 1-6 Specifically, after milling the plane of the bearing seat 11 on the starter end cover 1, the bearing hole 12 also needs to be precision machined. Especially during batch processing, it is necessary to ensure that the central axis of the bearing hole 12 on the front and rear covers of the starter coincides. Therefore, it is necessary to conduct random inspections on the starter end cover 1. Based on this, a starter end cover hole group position detection device is proposed, including the starter end cover 1 and the bearing seat 11 integrally set on the starter end cover 1. The bearing seat 11 has a bearing hole 12 for mating on its end face. The outer end of the bearing seat 11 of the starter end cover 1 is provided with a detection component 2 for detection. The detection component 2 includes:
[0033] The outer disc 21 is used to fit against the outer side of the bearing housing 11;
[0034] The support part 22 is installed at the lower end of the outer plate body 21 and is used to push the bearing seat 11 so that it fits against the outer plate body 21.
[0035] The frame 24 is installed on the upper end of the outer plate 21. The frame 24 has a detection end 25 that can extend into the bearing hole 12. The detection end 25 is used to detect whether the axis of the bearing hole 12 is parallel to the axis of the bearing seat 11.
[0036] Specifically, the starter end cover 1 is cast, while the bearing housing 11 and bearing hole 12 of the starter end cover 1 need to be machined separately. Generally, the end face of the bearing housing 11 and the bearing hole 12 need to be clamped and machined separately. Therefore, the axis of the end face of the bearing housing 11 and the axis of the bearing hole 12 may not be parallel, that is, the bearing hole 12 may have a tilting deviation. For parts processed in batches, sampling inspection is required to ensure the pass rate of the parts. The detection component 2 can fit with the milled end face of the bearing housing 11, and the bearing hole 12 can be checked to see if the detection end 25 can extend into the bearing hole 12 to detect whether the bearing hole 12 is in a qualified state.
[0037] The lower end face of the outer disc 21 is flat and is used to mate with the milled end face of the bearing housing 11.
[0038] Specifically, the milled end face of the bearing housing 11 fits against the lower end face of the outer disc 21, so that the detection end 25 on the outer disc 21 is perpendicular to the milled end face of the bearing housing 11. If the detection end 25 can extend into the bearing hole 12, then the milled end face of the bearing housing 11 is perpendicular to the bearing hole 12; otherwise, there is a deviation.
[0039] like Figure 3 As shown, in order to facilitate the fit between the starter end cover 1 and the outer disc body 21, and to fit the bearing hole 12 with the positioning sleeve layer 211, a limiting layer 23 is fixed on the lower end face of the outer disc body 21. The limiting layer 23 is used to fit against the side of the bearing seat 11 and to position the bearing seat 11.
[0040] Specifically, the limiting layer 23 has a contour shape and is used to limit the side of the bearing housing 11. When the bearing housing 11 is in contact with the limiting layer 23, the starter end cover 1 and the outer disc body 21 are in a coordinated state.
[0041] like Figures 4-5 The specific structure of the support part 22 is shown. The support part 22 includes a support frame 221 fixed to the lower end of the outer plate 21 and a support sleeve 222 integral with the support frame 221. A support spring 223 is provided inside the support sleeve 222. A support shaft 224 is fixed to the outer end of the support spring 223. The support shaft 224 is sleeved inside the support sleeve 222. The outer end face of the support shaft 224 has a sliding opening 225. A rotatable slider 226 is embedded in the sliding opening 225. The slider 226 abuts against the lower end face of the bearing seat 11.
[0042] Specifically, the support part 22 is installed at the lower end of the outer disc body 21. The support spring 223 pushes the support shaft 224 upward, causing the slider 226 to press against the upper bearing seat 11, ensuring that the bearing seat 11 abuts against the lower end of the outer disc body 21. It should be noted that when the bearing seat 11 is fitted at the lower end of the outer disc body 21, the bearing seat 11 needs to move laterally. The bearing seat 11 presses against the slider 226, causing the slider 226 to move outward and press against the support spring 223, so that the bearing seat 11 is clamped between the slider 226 and the lower end of the outer disc body 21. When removing it, the bearing seat 11 can be moved laterally directly, which is convenient for operation.
[0043] The inner wall of the slide 225 and the outer wall of the slider 226 are fitted together, and the mating surfaces are smooth. Specifically, this allows the slider 226 to rotate within the slide 225. When the outer side of the slider 226 is pressed against the bearing seat 11, the slider 226 can rotate, thus preventing scratches on the bearing seat 11.
[0044] like Figure 4 and Figure 6 As shown, the upper end face of the frame 24 has an integral positioning sleeve 211 that coincides with the axis of the bearing hole 12. The detection end 25 is sleeved in the positioning sleeve 211. When the detection end 25 moves downward, it extends into the interior of the bearing hole 12.
[0045] Specifically, the detection end 25 is installed on the frame 24, and the detection end 25 is used to detect the bearing hole 12 by manually pressing it.
[0046] like Figure 6As shown, the frame 24 is arranged in a cross shape and is detachably fixed to the upper end of the outer plate 21. Both ends of the cross of the frame 24 have a downwardly extending shaft portion 241.
[0047] The detection end 25 includes two sets of sleeve shafts 251 and two return springs 252. The two return springs 252 are respectively fixed on the upper ends of the two sets of sleeve shafts 251. The sleeve shafts 251 are sleeved with the shaft part 241. The upper ends of the return springs 252 are fixed with the frame 24. The sleeve shafts 251 are sleeved in the positioning sleeve layer 211. The sleeve shafts 251 are pressed downward so that the sleeve shafts 251 extend into the bearing hole 12.
[0048] Specifically, the frame 24 is arranged in a cross shape, with two ends detachably fixed to the upper end of the outer plate 21, and the other two ends are equipped with detection ends 25. The other two ends of the frame 24 have an integrally downward extending shaft portion 241. Two sets of sleeve shafts 251 are respectively sleeved with the two sets of shaft portions 241, so that the two sets of sleeve shafts 251 can slide along the shaft portion 241. Through the support of the return spring 252, the downward sliding sleeve shafts 251 can be reset upward, producing a rebound effect.
[0049] The outer wall of the sleeve 251 is smooth and fits against the inner wall of the positioning sleeve 211. Specifically, the sleeve 251 can slide smoothly within the positioning sleeve 211. It should be noted that the positioning sleeve 211 is used to limit the movement of the sleeve 251, preventing its axis from shifting and ensuring accuracy during testing.
[0050] like Figure 6 As shown, a connecting rod 253 is fixed between the two sets of sleeve shafts 251. Pressing the connecting rod 253 drives the two sets of sleeve shafts 251 to move synchronously. Specifically, the function of the connecting rod 253 is to enable the two sets of sleeve shafts 251 to run synchronously. By pressing the connecting rod 253, the two sets of sleeve shafts 251 can move synchronously into their respective bearing holes 12, which facilitates operation.
[0051] The limiting layer 23 is a bent metal sheet that fits against the side of the bearing housing 11. Specifically, the limiting layer 23 is used to cover half of the bearing housing 11, so that the lateral movement of the bearing housing 11 can engage with or disengage from the detection component 2, facilitating operation.
[0052] Working principle: The starter end cover 1 and its bearing housing 11 are existing components. When processing the cast starter end cover 1, the end face of the bearing housing 11 is milled and the bearing hole 12 is expanded. It should be noted that this is done in two steps. Therefore, there is a possibility that the axis of the milled end face of the bearing housing 11 is not parallel to the axis of the bearing hole 12. Therefore, it is necessary to conduct random inspections on the batch-processed starter end covers 1. The inspection equipment is the inspection component 2. The starter end cover 1 is laterally fastened in the limiting layer 23, and the milled end face of the bearing housing 11 abuts against the outer disc body 21. Through the support part 22, the slider 226 abuts against the lower end face of the bearing housing 11, providing an upward pushing action to ensure that the milled end face of the bearing housing 11 is in contact with the outer disc body 21. Then, the connecting rod 253 is manually pressed downward, causing the two sets of sleeve shafts 251 to move downward along the positioning sleeve layer 211 and extend into the bearing hole 12. It should be noted that the sleeve 251 is parallel to the axis of the outer disc 21. When the milled surface of the bearing housing 11 is in contact with the outer disc 21, if the axis of the milled surface of the bearing housing 11 is parallel to the axis of the bearing hole 12, the sleeve 251 can extend into the bearing hole 12. If they are not parallel, the sleeve 251 will be stuck. It should also be noted that if the bearing hole 12 of the bearing housing 11 has threads, the sleeve 251 will fit with the inner diameter of the threads; if the bearing hole 12 does not have threads, the sleeve 251 will fit with the inner diameter of the bearing hole 12.
[0053] When the starter end cover 1 is inspected, the connecting rod 253 is loosened. Under the reset action of the return spring 252, the sleeve 251 automatically springs upward, and the starter end cover 1 can be removed laterally. It should be noted that when the starter end cover 1 is engaged with or removed from the inspection component 2, the lower support part 22 is operated by the sliding ball 226 abutting against the bearing seat 11. The sliding ball 226 rolls, which will not cause damage to the bearing seat 11.
[0054] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0055] The above provides a detailed description of the starter end cover hole group position detection device provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The above description of the embodiments is only for the purpose of helping to understand this utility model and its core ideas. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. A starter end cover hole group position detection device, comprising a starter end cover and a bearing housing integrally formed on the starter end cover, wherein a bearing hole for mating is formed on the end face of the bearing housing, characterized in that, The starter end cover has a detection component on the outer end of the bearing housing for testing. The detection component includes: The outer disc body is used to fit against the outer side of the bearing housing; The support part, installed at the lower end of the outer plate, is used to push the bearing seat so that it fits against the outer plate; The frame is installed on the upper end of the outer plate. The frame has a detection end that can extend into the bearing hole. The detection end is used to detect whether the axis of the bearing hole is parallel to the axis of the bearing seat.
2. The starter end cover hole group position detection device according to claim 1, characterized in that, The lower end face of the outer disc is flat, which is used to mate with the milled end face of the bearing housing.
3. The starter end cover hole group position detection device according to claim 1, characterized in that, A limiting layer is fixed to the lower end face of the outer disc body. The limiting layer is used to fit against the side of the bearing housing and to position the bearing housing.
4. The starter end cover hole group position detection device according to claim 1, characterized in that, The support unit includes a support frame fixed to the lower end of the outer plate and a support sleeve integrated with the support frame. A support spring is provided inside the support sleeve, and a support shaft is fixed to the outer end of the support spring. The support shaft is sleeved inside the support sleeve. The outer end face of the support shaft has a sliding opening, and a rotatable slider is embedded in the sliding opening. The slider abuts against the lower end face of the bearing seat.
5. The starter end cover hole group position detection device according to claim 4, characterized in that, The inner wall of the slide and the outer wall of the ball are fitted together, and the fitting surfaces are smooth.
6. The starter end cover hole group position detection device according to claim 1, characterized in that, The upper end face of the frame has an integral positioning sleeve that coincides with the axis of the bearing hole. The detection end is sleeved in the positioning sleeve. When the detection end moves downward, it extends into the interior of the bearing hole.
7. The starter end cover hole group position detection device according to claim 6, characterized in that, The frame is arranged in a cross shape and can be detachably fixed to the upper end of the outer plate. Both ends of the cross of the frame have a shaft extending downward. The detection end includes two sets of sleeve shafts and two return springs. The two return springs are fixed to the upper ends of the two sets of sleeve shafts respectively. The sleeve shafts are sleeved with the shafts. The upper ends of the return springs are fixed to the frame. The sleeve shafts are sleeved in the positioning sleeve layer. The sleeve shafts are pressed downwards to extend into the bearing holes.
8. The starter end cover hole group position detection device according to claim 7, characterized in that, The outer wall of the sleeve is smooth, and its outer wall fits against the inner wall of the positioning sleeve.
9. The starter end cover hole group position detection device according to claim 7, characterized in that, A connecting rod is fixed between the two sets of sleeve shafts. Pressing the connecting rod is used to drive the two sets of sleeve shafts to move synchronously.
10. The starter end cover hole group position detection device according to claim 3, characterized in that, The limiting layer is a zigzag metal sheet that fits against the side of the bearing housing.