Automatic lubricating grab bucket main pin shaft oil duct structure
By designing a built-in oil channel structure on the main pin of the mechanical grab and using the main pin as the oil channel carrier, the inconvenience of manual oil filling and the difficulty of automatic lubrication pipeline layout are solved, and the reliability of automatic lubrication and the flexibility of manual oil refueling are achieved.
Patent Information
- Application Number
- CN202421525137.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-07-01
AI Technical Summary
During the use of mechanical grabs, manual oil filling is inconvenient and dangerous, and it is difficult to arrange the pipelines automatically lubricate, especially when the grab is operating in bad conditions and the bucket body swings, pipeline protection and layout are difficult.
An oil channel structure of the automatic lubricating grab main pin is designed. The main pin is used as the oil channel carrier. By drilling holes on the main pin to install pipe fittings, the grease output from the oil pump enters the axial oil channel of the main pin through the radial pipe fittings and is output from the end face of the main pin to achieve automatic lubrication.
It avoids the layout of the external pipe line and the risk of material hitting, ensures the reliability of automatic lubrication, and can be replenished through the manual fuel refueling port when the automatic lubrication fails.
Smart Images
Figure CN222950213U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a lubricating inner oil channel structure for a grab bucket kingpin shaft, which is mainly used for pipeline arrangement during automatic lubrication of the grab bucket, and specifically relates to an automatic lubricating grab bucket kingpin shaft oil channel structure, belonging to the technical field of machinery. Background Art
[0002] Mechanical grab is a special tool for loading and unloading cargo at port terminals. During the use of the grab, the pin frequently rubs against the shaft hole. In order to ensure the reliable operation of the grab, the pin must be lubricated.
[0003] At present, the lubrication of grab bucket pins is mostly done by manual oiling. However, due to the large height of the mechanical grab bucket, manual oiling is inconvenient and the work is relatively dangerous.
[0004] If the grab pin is automatically lubricated, manual refueling can be avoided, but there are the following difficulties in pipeline layout:
[0005] (1) Each pin oiling point needs to be connected to the oil pump through an external pipeline, but the working conditions of the grab bucket are poor and the external pipeline layout is difficult;
[0006] (2) During the opening and closing process of the grab bucket, the bucket bodies on both sides swing at a large angle, and the main pin shaft is in contact with the material during the operation of the grab bucket, which is easily hit or bumped by the material. Therefore, the pipeline layout and protection at this location are more difficult. Utility Model Content
[0007] The utility model aims to provide an automatic lubrication grab bucket kingpin shaft oil passage structure to overcome the above-mentioned shortcomings and deficiencies in the prior art.
[0008] In order to solve the problem of automatic lubrication pipeline arrangement of a grab bucket, the utility model provides an oil channel structure in a kingpin shaft.
[0009] The main principles of this utility model:
[0010] 1. Use the kingpin shaft as a carrier to arrange the oil passage;
[0011] 2. Install pipe fittings through radial holes in the kingpin shaft. The grease output by the oil pump enters the kingpin shaft through the radial pipe fittings, flows into the axial oil channel of the kingpin shaft, and then is output from the end face of the kingpin shaft.
[0012] The technical problem to be solved by the utility model can be achieved through the following technical solutions:
[0013] An automatic lubrication grab bucket kingpin shaft oil passage structure is characterized by comprising a kingpin shaft 100, the kingpin shaft 100 is provided with an oil passage 120, the front end of the kingpin shaft 100 is provided with an oil inlet 101, the rear end of the kingpin shaft 100 is provided with an oil outlet 102, and the oil outlet 102 outputs to the support rod pins on both sides.
[0014] The kingpin shaft 100 is provided with a plurality of radial holes as oil inlets 101 , and the oil inlets 101 are connected to the pipe fitting 110 .
[0015] Furthermore, the oil inlet 101 and the pipe fitting 110 are connected by threads.
[0016] The kingpin shaft 100 is provided with a plurality of axial oil passages 120 .
[0017] Furthermore, a manual refueling port 103 is provided at the rear end of the kingpin shaft 100 ; the manual refueling port 103 forms an angle of 10° to 90° with the axial direction of the kingpin shaft 100 .
[0018] Furthermore, the kingpin shaft 100 is provided with a kingpin shaft lubricating oil port 104 , which is located in the middle and rear part of the bucket lobe kingpin shaft 100 and forms an angle of 10° to 90° with the axial direction of the kingpin shaft 100 .
[0019] Furthermore, one end of the kingpin shaft lubricating oil port 104 of the kingpin shaft 100 is connected to the automatic oil filling passage 120 , and the other end is connected to the manual oil filling passage 102 .
[0020] Furthermore, the three pipelines 120 inside the kingpin shaft 100 are independent of each other.
[0021] Beneficial effects of the utility model:
[0022] 1. The utility model uses the kingpin shaft as the oil channel carrier, avoiding the need for external pipelines in this area;
[0023] 2. The utility model uses the main pin shaft as the oil channel carrier to avoid the risk of the opening and closing of the bucket body squeezing the pipeline. At the same time, it also avoids the risk of the external pipeline being hit or hit by the material.
[0024] 3. The oil passages inside the kingpin shaft of the utility model are independent of each other. When one oil passage is blocked, it does not affect the continued oil delivery and lubrication of other oil passages.
[0025] 4. When the automatic lubrication fails, the utility model can also manually add oil through the oil hole on the end face of the kingpin shaft. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a schematic diagram of the application of the kingpin shaft of the utility model.
[0027] Figure 2A It is a longitudinal sectional schematic diagram of the kingpin shaft structure of the utility model.
[0028] Figure 2B It is a horizontal cross-sectional schematic diagram of the kingpin shaft structure of the utility model.
[0029] Figure 3 It is a perspective view of the main pin shaft structure of the utility model in the axonometric direction.
[0030] Figure 4 It is a schematic diagram of the overall structure of the bucket.
[0031] Reference numerals:
[0032] Kingpin shaft 100, pipe fitting 110, oil passage 120, oil inlet 101, oil outlet 102, manual oil filling port 103, kingpin shaft lubricating oil port 104;
[0033] Bucket body 200, lower support beam 300, oil pump 400, oil pipe 500. DETAILED DESCRIPTION
[0034] The following is a further description of the present invention in conjunction with specific embodiments. It should be understood that the following embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.
[0035] Example 1
[0036] Figure 1 This is a schematic diagram of the main pin shaft application of the utility model. Figure 1 An automatic lubrication grab bucket kingpin shaft oil passage structure includes: a kingpin shaft 100, a pipe 110, an oil passage 120, an oil inlet 101, an oil outlet 102, a manual oil filling port 103 and a kingpin shaft lubricating oil port 104.
[0037] Figure 2A It is a longitudinal sectional schematic diagram of the kingpin shaft structure of the utility model. Figure 2B This is a horizontal cross-sectional view of the main pin structure of the utility model. Figure 3 The grease from the oil pump 400 enters the kingpin shaft 100 through the three oil ports at the oil inlet 101 respectively, and the three oil passages are independent of each other; then the grease is output from the two oil ports of the oil outlet 102 to the support rod pins on both sides, and the middle oil passage can flow upward and downward through the kingpin shaft lubrication oil port 104 to lubricate the kingpin shaft.
[0038] The oil inlet 101 and the pipe 110 adopt Thread Connection. For example, plug-in type, threaded type, detachable connection.
[0039] The kingpin shaft 100 is provided with a plurality of axial oil passages 120 .
[0040] A manual oil filling port 103 is provided at the rear end of the kingpin shaft 100 ; the manual oil filling port 103 forms an angle of 10° to 90° with the axial direction of the kingpin shaft 100 .
[0041] The kingpin shaft 100 is provided with a kingpin shaft lubricating oil port 104 . The kingpin shaft lubricating oil port 104 is located at the middle and rear part of the kingpin shaft 100 and forms an angle of 10° to 90° with the axial direction of the kingpin shaft 100 .
[0042] An example of a preferred solution is an angle of 30°, which has the characteristics of easy alignment of the manual refueling gun and the oil nozzle, and easy unblocking of the oil channel after being blocked.
[0043] Figure 3 This is a perspective view of the main pin structure of the utility model in the axonometric direction. Figure 3 As shown, since the butter flows in the internal oil passage 120 of the main pin shaft 100, the main pin shaft plays a protective role and avoids the material from being hit or bumped.
[0044] At the same time, the three internal oil channels 120 are independent of each other, and the axial direction of the main pin shaft 100 of the three internal oil channels 120 is parallel. The grease flowing to each pin shaft does not affect each other. The amount of lubricating oil in each oil channel is stable and controllable, avoiding the situation where the grease amount in the remaining pipelines is too large after a single pipeline is blocked.
[0045] Figure 4 It is a schematic diagram of the overall structure of the bucket body, and the overall structure of the bucket body includes: a kingpin shaft 100, a bucket body 200, a lower support beam 300, an oil pump 400, and an oil pipe 500.
[0046] In addition, the oil is supplied from the main pin shaft 100 side, which avoids the distance change between the oil pipe 500 and the bucket body 200 when the bucket body 200 is opened and closed, thereby preventing the oil pipe 500 from being squeezed by the bucket body 200.
[0047] The specific implementation modes of the present invention are described above, but the present invention is not limited thereto. The present invention can also have various changes without departing from the purpose of the present invention.
Claims
1. An automatic lubrication grab kingpin shaft oil channel structure, characterized in that: The invention comprises a main pin shaft (100), wherein the main pin shaft (100) is provided with an oil passage (120). The front end of the main pin shaft (100) is provided with an oil inlet (101), and the rear end of the main pin shaft (100) is provided with an oil outlet (102), and the oil outlet (102) outputs oil to the support pin shafts on both sides; The kingpin shaft (100) is provided with a plurality of radial holes as oil inlets (101), and the oil inlets (101) are connected to the pipe fitting (110); The oil inlet (101) and the pipe fitting (110) are connected by thread.
2. The automatic lubrication grab kingpin shaft oil passage structure according to claim 1, characterized in that: The kingpin shaft (100) is provided with a plurality of axial oil passages (120).
3. The automatic lubrication grab kingpin shaft oil passage structure according to claim 1, characterized in that: A manual refueling port (103) is provided at the rear end of the kingpin shaft (100); the manual refueling port (103) forms an angle of 10° to 90° with the axial direction of the kingpin shaft (100).
4. The automatic lubrication grab kingpin shaft oil passage structure according to claim 1, characterized in that: The kingpin shaft (100) is provided with a kingpin shaft lubricating oil port (104), which is located at the middle and rear part of the kingpin shaft (100) and forms an angle of 10° to 90° with the axial direction of the kingpin shaft (100).