Device for detecting smoothness of oil duct hole of crankshaft of motorcycle
By designing a positioning and collection mechanism, the problem of impurities being ejected during crankshaft oil passage hole inspection was solved, achieving stable inspection and convenient cleaning, and improving the usability and practicality of the device.
Patent Information
- Application Number
- CN202520752208.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-04-21
AI Technical Summary
Existing motorcycle crankshaft oil passage unobstructedness testing devices may spray out metal shavings or other impurities from the oil passages during testing, making cleaning difficult and reducing the device's usability and practicality.
A detection device including a positioning mechanism and a collection mechanism was designed. The positioning mechanism clamps the crankshaft with a hollow block, a bidirectional threaded rod, a guide rod and a positioning plate to ensure stability. The collection mechanism collects impurities with a snap ring, a collection cylinder and a filter screen to achieve centralized cleaning.
It improves the stability and cleaning efficiency of the testing process, reduces the cleaning workload of staff, and enhances the usability and practicality of the device.
Smart Images

Figure CN223966266U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motorcycle crankshaft testing technology, and in particular to a device for detecting the unobstructed flow of oil passages in motorcycle crankshafts. Background Technology
[0002] Chinese patent document CN214309302U discloses a device for detecting the unobstructed flow of oil passages in a motorcycle crankshaft. The device includes a main body, a detection head on its right side, and a mounting plate fixedly installed on the right side. A rectangular groove is formed on the upper surface of the mounting plate, and a transverse lead screw is rotatably connected to the inner walls of both sides of the rectangular groove. A movable mounting block is threaded onto the surface of the transverse lead screw, and a placement frame is fixedly installed on the upper surface of the movable mounting block. Openings are formed on both sides of the placement frame. This device, by incorporating a detection head, a sealing gasket, a sealing airbag, and a miniature air pump, effectively seals the end of the crankshaft body to the detection head during the detection of oil passages, preventing air leakage and ensuring accuracy.
[0003] When the aforementioned crankshaft oil passage unobstructed testing device vents air into the crankshaft for testing, if there are metal shavings or other impurities in the crankshaft oil passage, they may spray out from the oil passage and scatter on the device or site, making it inconvenient to clean up, increasing the workload of the staff, and reducing the usability and practicality of the device. Utility Model Content
[0004] The purpose of this utility model is to provide a motorcycle crankshaft oil passage unobstructed detection device, which can solve the problem that when the above-mentioned crankshaft oil passage unobstructed detection device vents air into the crankshaft for testing, if there are metal debris or other impurities in the crankshaft oil passage, they may spray out from the oil passage and scatter on the device or site, which is inconvenient to clean, increases the workload of the staff, and reduces the usability and practicality of the device.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a motorcycle crankshaft oil passage unobstructed detection device, comprising a mounting platform, a positioning mechanism, and a collecting mechanism. The positioning mechanism is located on the top of the mounting platform and includes a hollow block, a bidirectional threaded rod, a movable block, and a positioning plate. The top of the mounting platform is fixedly connected to the bottom of the hollow block. The bidirectional threaded rod is rotatably installed on the inner walls of both sides of the hollow block. The outer wall of the bidirectional threaded rod is threadedly connected to the inner walls of two sets of movable blocks. A positioning plate is fixedly installed on the top of each of the two sets of movable blocks. The collecting mechanism is located above the mounting platform and includes a snap-fit ring, a collection cylinder, and a filter screen. The collection cylinder is snap-fitted onto the inner wall of the snap-fit ring, and a filter screen is fixedly installed on the inner wall of the collection cylinder.
[0006] Preferably, the positioning mechanism further includes a guide rod and a polygonal knob. One end of the bidirectional threaded rod extends to the outside of the hollow block and is fixedly mounted with the polygonal knob. The inner walls on both sides of the hollow block are fixedly connected to the two ends of the guide rod, and the outer wall of the guide rod is slidably connected to the inside of the two sets of movable blocks to clamp the crankshaft as a whole, prevent the crankshaft from shifting, facilitate the operation of the operator, and make the crankshaft more stable during the inspection process.
[0007] Preferably, the collection mechanism further includes an auxiliary handle, a snap ring is fixedly installed on one side of a set of positioning plates, and an auxiliary handle is fixedly installed on one side of the filter screen. The air outlet end of the crankshaft oil passage hole is covered inside the collection cylinder to collect debris and other impurities sprayed out of the crankshaft during the testing process, which facilitates centralized cleaning, reduces the workload of the staff during cleaning, and improves the usability and practicality of the device.
[0008] Preferably, both sets of positioning plates have circular holes inside, with one set of circular holes located inside the snap ring.
[0009] Preferably, a detector is fixedly installed on the top of the mounting platform, and a detection connector is provided on the top of the detector.
[0010] Preferably, the bottom of the mounting platform is fixedly equipped with multiple sets of rectangularly distributed support rods, and one end of each support rod is provided with an anti-slip pad.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] (1) The crankshaft oil passage unobstructed detection device of the motorcycle uses a combination of hollow block, bidirectional threaded rod, guide rod, movable block, multi-sided knob and positioning plate to clamp the crankshaft as a whole, prevent the crankshaft from shifting, facilitate the operation of the operator, and make the crankshaft more stable during the detection process.
[0013] (2) The motorcycle crankshaft oil passage hole unobstructed detection device, through the combined use of a snap ring, a collection cylinder, a filter screen and an auxiliary handle, covers the air outlet end of the crankshaft oil passage hole inside the collection cylinder, collects the debris and other impurities sprayed out of the crankshaft during the detection process, facilitates centralized cleaning, reduces the workload of the staff during cleaning, and improves the usability and practicality of the device. Attached Figure Description
[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a bottom-view three-dimensional structural diagram of the movable block of this utility model;
[0017] Figure 3 This is a three-dimensional structural diagram of the material collecting cylinder of this utility model.
[0018] Reference numerals: 1. Mounting platform; 2. Positioning mechanism; 201. Hollow block; 202. Bidirectional threaded rod; 203. Guide rod; 204. Movable block; 205. Polygonal knob; 206. Positioning plate; 3. Collection mechanism; 301. Snap-fit ring; 302. Collection cylinder; 303. Filter screen; 304. Auxiliary handle; 4. Circular hole; 5. Detector; 6. Detection connector. Detailed Implementation
[0019] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0020] Please see Figure 1-3 This utility model provides a technical solution: a motorcycle crankshaft oil passage unobstructed detection device, including a mounting platform 1, a positioning mechanism 2, and a collecting mechanism 3. The positioning mechanism 2 is disposed on the top of the mounting platform 1 and includes a hollow block 201, a bidirectional threaded rod 202, a movable block 204, and a positioning plate 206. The top of the mounting platform 1 is fixedly connected to the bottom of the hollow block 201. The bidirectional threaded rod 202 is rotatably mounted on the inner walls of both sides of the hollow block 201. The outer wall of the bidirectional threaded rod 202 is threadedly connected to the inner walls of two sets of movable blocks 204. A set of positioning plates 206 is fixedly mounted on the top of each of the two sets of movable blocks 204. Positioning plate 206; Collection mechanism 3 is located above mounting platform 1. Collection mechanism 3 includes snap ring 301, collection cylinder 302 and filter screen 303. Collection cylinder 302 is snapped onto the inner wall of snap ring 301 and filter screen 303 is fixedly installed on the inner wall of collection cylinder 302; Both sets of positioning plates 206 have circular holes 4 inside, and one set of circular holes 4 is located inside snap ring 301; Detector 5 is fixedly installed on the top of mounting platform 1, and detection connector 6 is provided on the top of detector 5; Multiple sets of rectangularly distributed support rods 7 are fixedly installed on the bottom of mounting platform 1, and anti-slip pads are provided at one end of support rods 7.
[0021] Secondly, the positioning mechanism 2 also includes a guide rod 203 and a polygonal knob 205. One end of the bidirectional threaded rod 202 extends to the outside of the hollow block 201 and is fixedly installed with the polygonal knob 205. The inner walls on both sides of the hollow block 201 are fixedly connected to the two ends of the guide rod 203 respectively. The outer wall of the guide rod 203 is slidably connected to the inside of the two sets of movable blocks 204 to clamp the crankshaft as a whole, prevent the crankshaft from shifting, facilitate the operation of the operator, and make the crankshaft more stable during the inspection process.
[0022] Furthermore, the collection mechanism 3 also includes an auxiliary handle 304. A snap ring 301 is fixedly installed on one side of a set of positioning plates 206, and an auxiliary handle 304 is fixedly installed on one side of the filter screen 303. The air outlet end of the crankshaft oil passage hole is covered inside the collection cylinder 302 to collect debris and other impurities sprayed out of the crankshaft during the testing process. This facilitates centralized cleaning, reduces the workload of the staff during cleaning, and improves the usability and practicality of the device.
[0023] Working principle: When using this device, the crankshaft is placed between the positioning plates 206. By rotating the bidirectional threaded rod 202 through the polygonal knob 205, under the limit of the guide rod 203, the two sets of movable blocks 204 are driven to move in opposite directions, so that the two ends of the crankshaft oil passage hole pass through the circular hole 4, and the two sets of movable blocks 204 are clamped on the crankshaft. One end of the crankshaft extends into the collection cylinder 302. Then, the detection connector 6 is connected to the other end of the crankshaft, and the detector 5 is turned on. Air is vented into the oil passage hole of the crankshaft through the detection connector 6 to check whether the oil passage hole is unobstructed. If there are debris or other impurities in the oil passage hole, the impurities are sprayed out from one end of the crankshaft by the airflow. Under the obstruction of the filter screen 303, the impurities are collected in the collection cylinder 302. When the test is finished, the collection cylinder 302 can be removed from the retaining ring 301 by pulling the auxiliary handle 304, and the collected impurities can be cleaned.
[0024] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A device for detecting the unobstructed flow of oil passages in a motorcycle crankshaft, characterized in that, include: Mounting station (1); The positioning mechanism (2) is set on the top of the mounting platform (1). The positioning mechanism (2) includes a hollow block (201), a two-way threaded rod (202), a movable block (204), and a positioning plate (206). The top of the mounting platform (1) is fixedly connected to the bottom of the hollow block (201). The two-way threaded rod (202) is rotatably installed on the inner walls of both sides of the hollow block (201). The outer wall of the two-way threaded rod (202) is connected to the internal threads of two sets of movable blocks (204). A positioning plate (206) is fixedly installed on the top of each of the two sets of movable blocks (204). The collection mechanism (3) is located above the mounting platform (1). The collection mechanism (3) includes a snap ring (301), a collection cylinder (302) and a filter screen (303). The collection cylinder (302) is snapped onto the inner wall of the snap ring (301), and the filter screen (303) is fixedly installed on the inner wall of the collection cylinder (302).
2. The motorcycle crankshaft oil passage unobstructed detection device according to claim 1, characterized in that: The positioning mechanism (2) also includes a guide rod (203) and a polygonal knob (205). One end of the bidirectional threaded rod (202) extends to the outside of the hollow block (201) and is fixedly installed with the polygonal knob (205). The inner walls of both sides of the hollow block (201) are fixedly connected to the two ends of the guide rod (203) respectively. The outer wall of the guide rod (203) is slidably connected to the inside of the two sets of movable blocks (204).
3. The motorcycle crankshaft oil passage unobstructed detection device according to claim 2, characterized in that: The collection mechanism (3) also includes an auxiliary handle (304), a snap ring (301) is fixedly installed on one side of a set of positioning plates (206), and an auxiliary handle (304) is fixedly installed on one side of the filter screen (303).
4. The motorcycle crankshaft oil passage unobstructed detection device according to claim 3, characterized in that: Both sets of positioning plates (206) have circular holes (4) inside, and one set of circular holes (4) is located inside the snap ring (301).
5. The motorcycle crankshaft oil passage unobstructed detection device according to claim 4, characterized in that: A detector (5) is fixedly installed on the top of the mounting platform (1), and a detection connector (6) is provided on the top of the detector (5).
6. The motorcycle crankshaft oil passage unobstructed detection device according to claim 5, characterized in that: The bottom of the mounting platform (1) is fixedly installed with multiple sets of rectangularly distributed support rods (7), and one end of the support rods (7) is provided with an anti-slip pad.
Citation Information
Patent Citations
Device for detecting smoothness of oil duct hole of crankshaft of motorcycle
CN214309302U