Crankshaft cleaning and fixing device
By designing a crankshaft cleaning fixture with a detachable support frame and roller structure, the problems of crankshaft damage and incomplete cleaning caused by improper fixation during the cleaning process are solved, and effective fixation and cleaning of the crankshaft are achieved.
Patent Information
- Application Number
- CN202422668082.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-01
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-11-01
AI Technical Summary
In the prior art, the crankshaft is easily damaged or incompletely cleaned during the cleaning process due to improper fixation.
A crankshaft cleaning and fixing device including a support frame and a cleaning platform is designed. The support frame can be detachably mounted on the cleaning platform. The support frame is provided with a mounting groove and a roller structure for fixing the crankshaft and preventing deformation.
It effectively prevents the crankshaft from being damaged due to improper fixation during the cleaning process, ensures the integrity of the cleaning, and improves the cleaning effect and safety of the crankshaft.
Smart Images

Figure CN223367789U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of crankshafts, and more particularly to a crankshaft cleaning and fixing device. Background Art
[0002] During engine operation, harmful substances such as high-pressure unburned gases, acids, moisture, sulfur, and nitrogen oxides in the combustion chamber enter the crankcase through the gap between the piston rings and the cylinder wall. Mixed with metal powder from component wear, this sludge forms sludge. In small quantities, this sludge remains suspended in the oil. In larger quantities, it precipitates from the oil, clogging filters and oil holes, hindering engine lubrication and causing wear. Furthermore, oil oxidation at high temperatures can form varnish and carbon deposits that adhere to the pistons, increasing fuel consumption and reducing engine power. In severe cases, it can even cause piston ring seizure and cylinder scuffing.
[0003] Therefore, crankshaft cleaning is essential to maintain engine cleanliness, enhance oil flow, prevent oil buildup, improve engine efficiency, neutralize harmful acids, and clean the crankcase's PVC valves, hydraulic tappets, and valve lifters. Crankshaft cleaning involves applying cleaning fluid to the crankshaft's exterior surface, including oil passages, threaded holes, and pin holes, using cleaning equipment (tools). A specific cleaning method is employed to remove grease, dirt, and other deposits from the crankshaft's exterior surface, including oil passages, threaded holes, and pin holes. However, due to the crankshaft's flexible shape, the crankshaft must achieve a certain degree of cleanliness. Furthermore, the cleaned crankshaft must exhibit a certain degree of short-term rust resistance. Crankshaft cleaning technology encompasses three essential elements: cleaning materials, cleaning processes, and cleaning management. Cleaning materials are fundamental to crankshaft cleaning, cleaning processes are a means of ensuring cleaning quality, and cleaning management ensures the implementation of the established cleaning process. Only when these three elements work together in harmony can crankshaft cleaning be effective. However, during the crankshaft cleaning process, improper securing can lead to damage or incomplete cleaning. Utility Model Content
[0004] The technical problem to be solved by the utility model is to provide a crankshaft cleaning and fixing device in view of the deficiencies in the prior art, so as to solve the problem that improper fixing of the prior engine crankshaft may cause crankshaft damage or incomplete cleaning.
[0005] The utility model discloses a crankshaft cleaning and fixing device, which includes a support frame and a cleaning platform, wherein a plurality of support frames are detachably mounted on the cleaning platform, the support frame is provided with a mounting groove for placing the crankshaft shaft, the middle part of the support frame is provided with a storage groove, and through holes are provided on both sides of the storage groove above the support frame, and the roller is rotatably mounted on the through hole through the roller mounting shaft.
[0006] As a further improvement, several bracket mounting seats are fixedly installed above the cleaning platform, and flat plates are provided on both sides of the support frame. Pin holes are provided on the flat plates and the bracket mounting seats, and the support frame is installed on the bracket mounting seats by inserting positioning pins into the flat plates and the bracket mounting seats.
[0007] Furthermore, limit rods are installed at both ends above the bracket mounting seat.
[0008] Furthermore, the support frame and the flat panel are an integrated structure.
[0009] Furthermore, the cleaning platform is a hollow structure in the middle.
[0010] Furthermore, a plurality of auxiliary wheels for fixing the crankshaft are installed on the cleaning platform.
[0011] Furthermore, the mounting groove is a V-shaped mounting groove.
[0012] Beneficial effects
[0013] The advantages of the present invention are:
[0014] 1. The utility model provides a crankshaft cleaning and fixing device including a support frame and a cleaning platform. The support frame can be detachably mounted on the cleaning platform, thereby improving the installation flexibility of the support frame and facilitating its replacement when the support frame is damaged.
[0015] 2. The support frame is provided with a mounting groove for placing the crankshaft shaft, and a storage groove is provided in the middle of the support frame. A supporting structure is installed in the storage groove. The supporting structure is two rollers. The mounting groove fixes the crankshaft to prevent damage to the crankshaft due to improper fixation or incomplete cleaning of the crankshaft. The rollers can prevent the crankshaft from deformation and loss during the fixing process. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the overall structure of the cleaning and fixing device of the present utility model;
[0017] Figure 2 This is a front view of the support frame of the cleaning and fixing device of the present invention;
[0018] Figure 3 A top view of the support frame of the cleaning and fixing device of the present invention;
[0019] Figure 4 This is a structural diagram of the support frame of the present invention without rollers installed;
[0020] Figure 5 This is a structural diagram of the roller mounting shaft of the utility model.
[0021] Among them: 1-support frame, 2-roller, 3-roller mounting shaft, 4-mounting slot, 5-plate, 6-locating pin, 7-crankshaft, 8-limiting rod, 9-bracket mounting seat, 10-cleaning platform, 11-auxiliary wheel, 12-storage slot. DETAILED DESCRIPTION
[0022] The present invention will be further described below in conjunction with the embodiments, but this does not constitute any limitation to the present invention. Any limited modifications made by anyone within the scope of the claims of the present invention are still within the scope of the claims of the present invention.
[0023] See Figure 1-Figure 5 The present invention provides a crankshaft cleaning and fixing device, comprising a support frame 1 and a cleaning platform 10. The support frame 1 is detachably mounted on the cleaning platform 10. The support frame 1 is provided with a mounting slot 4 for accommodating a crankshaft 7. A storage slot 12 is provided in the middle of the support frame 1, and a supporting structure is mounted in the storage slot 12. The detachable mounting of the support frame 1 on the cleaning platform improves the installation flexibility of the support frame 1 and enables timely replacement of the support frame 1 in the event of damage.
[0024] Several bracket mounting seats 9 are fixedly installed above the cleaning platform 10. Flat plates 5 are provided on both sides of the support frame 1. The support frame 1 and the flat plates 5 are an integrated structure. Pin holes are provided on the flat plates 5 and the bracket mounting seats 9. The support frame 1 is installed on the bracket mounting seats 9 by inserting positioning pins 6 into the flat plates 5 and the bracket mounting seats 9.
[0025] Limit rods 8 are installed at both ends above the bracket mounting seat 9. The limit rods 8 limit the support frame 1 when it is installed.
[0026] The support structure includes two rollers 2. A through-hole is formed on either side of the storage slot 12 above the support frame 1. The rollers 2 are rotatably mounted on the through-holes via roller mounting shafts 3. The mounting slots 4 secure the crankshaft 7, preventing damage or incomplete cleaning due to improper securing. The rollers 2 also prevent deformation during the securing process.
[0027] The cleaning platform 10 is a hollow structure in the middle, which prevents the cleaning water from accumulating on the cleaning platform 10 and facilitates the water to flow down during flushing.
[0028] A plurality of auxiliary wheels 11 for fixing the crankshaft 7 are installed on the cleaning platform 10 , and the auxiliary wheels 11 are used to assist in fixing the crankshaft 7 .
[0029] The mounting groove 4 is a V-shaped mounting groove, which facilitates fixing the crankshaft 7 .
[0030] The working principle of this utility model is:
[0031] When the crankshaft 7 needs to be cleaned and fixed, the support frame 1 is installed on the support mounting seat 9 by inserting the positioning pins 6 on the flat plate 5 and the support mounting seat 9, and then the shaft of the crankshaft 7 is slowly placed into the mounting groove 4 on the support frame 1.
[0032] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention. These modifications and improvements will not affect the effect of the implementation of the present invention and the practicality of the patent.
Claims
1. A crankshaft cleaning and fixing device, characterized in that: It comprises a support frame (1) and a cleaning platform (10), wherein a plurality of support frames (1) are detachably mounted on the cleaning platform (10), wherein a mounting groove (4) for placing a crankshaft (7) is provided on the support frame (1), a storage groove (12) is provided in the middle of the support frame (1), and through holes are provided on both sides of the storage groove (12) above the support frame (1), and a roller (2) is rotatably mounted on the through hole via a roller mounting shaft (3).
2. A crankshaft cleaning and fixing device according to claim 1, characterized in that: A plurality of bracket mounting seats (9) are fixedly installed above the cleaning platform (10), and flat plates (5) are provided on both sides of the support frame (1). Pin holes are provided on the flat plates (5) and the bracket mounting seats (9), and the support frame (1) is installed on the bracket mounting seats (9) by means of positioning pins (6) inserted into the flat plates (5) and the bracket mounting seats (9).
3. A crankshaft cleaning and fixing device according to claim 2, characterized in that: Limiting rods (8) are installed at both ends above the bracket mounting seat (9).
4. A crankshaft cleaning and fixing device according to claim 3, characterized in that: The support frame (1) and the flat plate (5) are an integrated structure.
5. The crankshaft cleaning and fixing device according to claim 1, characterized in that: The cleaning platform (10) is a hollow structure in the middle.
6. The crankshaft cleaning and fixing device according to claim 1, characterized in that: A plurality of auxiliary wheels (11) for fixing the crankshaft (7) are installed on the cleaning platform (10).
7. The crankshaft cleaning and fixing device according to claim 1, characterized in that: The installation groove (4) is a V-shaped installation groove.