Intermediate shaft with lubricating mechanism

Abstract

The utility model belongs to the field of intermediate shafts, and particularly relates to an intermediate shaft with a lubricating mechanism, which comprises a shaft body, the upper end of the shaft body is fixedly connected with a connecting shaft, the surface of the connecting shaft is fixedly connected with a bayonet lock, the middle part of the outer side of the shaft body is fixedly connected with a transmission gear, a flow channel is arranged in the shaft body, and the surface of the shaft body is fixedly connected with the bayonet lock. A baffle ring is fixedly connected to the outer side of the shaft body, a gear is slidably connected to the outer side of the shaft body, an oil outlet mechanism is arranged on the gear, a limiting ring is connected to the outer side of the shaft body through threads, an annular groove is formed in the surface of the shaft body, and an oil inlet pipe is slidably connected into the annular groove. According to the gear lubricating device, the plug is elastically and tightly jacked through the pressure spring, the oil outlet hole in the gear is plugged, in the rotating process of the gear, the plug is extruded through the teeth meshed with the gear, oil can be intermittently discharged through the oil outlet hole, the gear can be automatically discharged for lubrication, lubrication is more uniform, the lubrication effect is better, and abrasion of the gear is reduced.

Description

Technical Field

[0001] This utility model relates to the field of intermediate shaft technology, specifically to an intermediate shaft with a lubrication mechanism. Background Technology

[0002] Utility model patent CN218787295U discloses a low-noise intermediate shaft with good lubrication performance, relating to the field of automotive parts technology. This intermediate shaft aims to solve the technical problem of poor lubrication performance in existing technologies, which causes gear jamming and noise during operation, affecting usability. The intermediate shaft includes an intermediate shaft body, a first gear disposed on the outside of the intermediate shaft body, a limiting and fixing sleeve disposed below the first gear, and a first lubrication assembly disposed below the limiting and fixing sleeve. A second gear is detachably mounted below the limiting and fixing sleeve, a third gear is disposed below the second gear, and a gear anti-disengagement assembly is disposed below the third gear. The second lubrication assembly is disposed above the first gear, and flow holes are evenly distributed on the outside of the intermediate shaft body. Due to frictional heat, the oil in the first and second lubrication assemblies melts, thereby lubricating the three sets of gears, resulting in good lubrication performance.

[0003] However, during use, the device cannot continuously add lubricating oil, and the lubrication of the gears is not uniform enough, resulting in poor lubrication. Utility Model Content

[0004] The purpose of this invention is to provide an intermediate shaft with a lubrication mechanism, which solves the problems that the device cannot continuously add lubricating oil during operation, and that the device does not provide even lubrication to the gears, resulting in poor lubrication effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an intermediate shaft with a lubrication mechanism, comprising a shaft body, a connecting shaft fixedly connected to the upper end of the shaft body, a retaining pin fixedly connected to the surface of the connecting shaft, a transmission gear fixedly connected to the middle of the outer side of the shaft body, a flow channel opened inside the shaft body, a retaining ring fixedly connected to the outer side of the shaft body, a gear slidably connected to the outer side of the shaft body, an oil outlet mechanism provided on the gear, a limit ring threadedly connected to the outer side of the shaft body, an annular groove opened on the surface of the shaft body, and an oil inlet pipe slidably connected inside the annular groove.

[0006] Preferably, the shaft body has an oil perforation hole inside, which communicates with the annular groove and the flow channel. The oil perforation hole connects the annular groove and the flow channel.

[0007] Preferably, a retaining sleeve is fixedly connected to the outer side of the oil inlet pipe, and the retaining sleeve and the shaft are connected by a sealed bearing. The retaining sleeve seals the annular groove.

[0008] Preferably, the oil outlet mechanism includes a limiting sleeve, which is slidably connected to a gear. A retaining ring is connected internally to the gear via screws. A spline is fixedly connected internally to the gear and slidably connected to a shaft. A plug is slidably connected internally to the gear, and a compression spring is installed internally. The compression spring elastically tightens the plug, sealing the oil outlet hole on the gear. During gear rotation, the meshing teeth of the gear compress the plug, allowing oil to intermittently exit through the oil outlet hole, automatically lubricating the gear and reducing wear.

[0009] Preferably, the spline contacts the retaining ring, the retaining ring is slidably connected to the shaft, and the retaining ring contacts the limiting sleeve. The retaining ring limits the movement of the limiting sleeve.

[0010] Preferably, a guide block is fixedly connected to the surface of the plug, and the guide block is slidably connected to the gear. The guide block guides the movement of the plug.

[0011] Preferably, one end of the compression spring contacts the limiting sleeve, and the other end of the compression spring is fixedly connected to the plug. By providing the compression spring, the plug can be easily reset.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model introduces oil into the annular groove through an oil inlet pipe, and connects it with the flow channel through an oil passage hole, so that when oil is introduced into the shaft, it will not interfere with the rotation of the shaft, allowing the device to continuously add lubricating oil without stopping the machine.

[0014] 2. This utility model uses a compression spring to elastically tighten the plug and seal the oil outlet hole on the gear. During the rotation of the gear, the meshing teeth on the gear squeeze the plug, allowing oil to flow intermittently through the oil outlet hole, automatically lubricating the gear. This results in more uniform lubrication, better lubrication effect, and reduced gear wear. Attached Figure Description

[0015] Figure 1 This is a perspective view of the overall structure of this utility model;

[0016] Figure 2 This utility model Figure 1 A sectional view;

[0017] Figure 3 This utility model Figure 1 A bottom view of the gear;

[0018] Figure 4 This utility model Figure 2 Enlarged view of point A.

[0019] In the diagram: 1. Shaft; 2. Connecting shaft; 3. Snap pin; 4. Transmission gear; 5. Flow channel; 6. Retaining ring; 7. Gear; 8. Oil outlet mechanism; 9. Limiting ring; 10. Ring groove; 11. Oil through hole; 12. Oil inlet pipe; 13. Retaining sleeve; 81. Limiting sleeve; 82. Fixing ring; 83. Spline; 84. Plug; 85. Guide block; 86. Compression spring. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1-2 An intermediate shaft with a lubrication mechanism includes a shaft body 1, a connecting shaft 2 fixedly connected to the upper end of the shaft body 1, a retaining pin 3 fixedly connected to the surface of the connecting shaft 2, a transmission gear 4 fixedly connected to the middle of the outer side of the shaft body 1, a flow channel 5 opened inside the shaft body 1, a retaining ring 6 fixedly connected to the outer side of the shaft body 1, a gear 7 slidably connected to the outer side of the shaft body 1, an oil outlet mechanism 8 provided on the gear 7, a limit ring 9 threadedly connected to the outer side of the shaft body 1, an annular groove 10 opened on the surface of the shaft body 1, an oil through hole 11 opened inside the shaft body 1, the oil through hole 11 communicates with the annular groove 10, the oil through hole 11 communicates with the flow channel 5, the annular groove 10 and the flow channel 5 are connected by the oil through hole 11, an oil inlet pipe 12 is slidably connected inside the annular groove 10, a retaining sleeve 13 is fixedly connected to the outer side of the oil inlet pipe 12, the retaining sleeve 13 and the shaft body 1 are connected by a sealed bearing, the annular groove 10 is closed by the retaining sleeve 13.

[0022] Please see Figures 1-4The oil outlet mechanism 8 includes a limiting sleeve 81, which is slidably connected to a gear 7. A retaining ring 82 is screwed into the inside of the gear 7. A spline 83 is fixedly connected inside the gear 7, and the spline 83 is slidably connected to the shaft 1. The spline 83 contacts the retaining ring 82, which is also slidably connected to the shaft 1 and contacts the limiting sleeve 81. The retaining ring 82 limits the movement of the limiting sleeve 81. A plug 84 is slidably connected inside the gear 7, and a guide block 85 is fixedly connected to the surface of the plug 84. The guide block 85 slidably connects to the gear 7. The connection is achieved by setting a guide block 85 to guide the movement of the plug 84. A compression spring 86 is set inside the gear 7. One end of the compression spring 86 contacts the limiting sleeve 81, and the other end of the compression spring 86 is fixedly connected to the plug 84. By setting the compression spring 86, the plug 84 can be easily reset. The compression spring 86 elastically presses the plug 84 to seal the oil outlet hole on the gear 7. During the rotation of the gear 7, the meshing teeth on the gear 7 squeeze the plug 84, and oil can be intermittently discharged through the oil outlet hole to automatically lubricate the gear 7 and reduce the wear of the gear 7.

[0023] The specific implementation process of this utility model is as follows: In use, lubricating oil enters the annular groove 10 through the oil inlet pipe 12. The lubricating oil in the annular groove 10 enters the gear 7 through the oil passage hole 11 and the flow channel 5. The oil inlet pipe 12 enters the annular groove 10, and the oil passage hole 11 and the flow channel 5 are connected, so that when oil enters the shaft 1, it will not interfere with the rotation of the shaft 1, so that the device can continuously add lubricating oil without stopping the machine. When the gear 7 meshes with the external teeth, the teeth squeeze the plug 84, causing the plug 84 to... The internal movement of gear 7 compresses the spring 86, allowing lubricating oil to enter the tooth grooves of gear 7. When the external teeth disengage from the plug 84, the spring 86 resets, causing the plug 84 to reset as well, thus sealing the oil outlet on gear 7. The spring 86 elastically presses the plug 84 to seal the oil outlet on gear 7. During the rotation of gear 7, the meshing teeth of gear 7 compress the plug 84, allowing oil to flow intermittently through the oil outlet, automatically lubricating gear 7 and reducing wear.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An intermediate shaft with a lubrication mechanism, comprising a shaft body (1), characterized in that: The upper end of the shaft (1) is fixedly connected to a connecting shaft (2), and a retaining pin (3) is fixedly connected to the surface of the connecting shaft (2). A transmission gear (4) is fixedly connected to the middle of the outer side of the shaft (1). A flow channel (5) is opened inside the shaft (1). A retaining ring (6) is fixedly connected to the outer side of the shaft (1). A gear (7) is slidably connected to the outer side of the shaft (1). An oil outlet mechanism (8) is provided on the gear (7). A limit ring (9) is threadedly connected to the outer side of the shaft (1). An annular groove (10) is opened on the surface of the shaft (1). An oil inlet pipe (12) is slidably connected inside the annular groove (10).

2. The intermediate shaft with a lubrication mechanism according to claim 1, characterized in that: The shaft (1) has an oil passage hole (11) inside, which is connected to the annular groove (10) and the flow channel (5).

3. The intermediate shaft with a lubrication mechanism according to claim 1, characterized in that: A retaining sleeve (13) is fixedly connected to the outside of the oil inlet pipe (12), and the retaining sleeve (13) and the shaft (1) are connected by a sealed bearing.

4. An intermediate shaft with a lubrication mechanism according to claim 1, characterized in that: The oil outlet mechanism (8) includes a limiting sleeve (81), which is slidably connected to a gear (7). A fixing ring (82) is connected inside the gear (7) by screws. A spline (83) is fixedly connected inside the gear (7). The spline (83) is slidably connected to a shaft (1). A plug (84) is slidably connected inside the gear (7). A compression spring (86) is provided inside the gear (7).

5. An intermediate shaft with a lubrication mechanism according to claim 4, characterized in that: The spline (83) is in contact with the retaining ring (82), the retaining ring (82) is slidably connected to the shaft (1), and the retaining ring (82) is in contact with the limiting sleeve (81).

6. An intermediate shaft with a lubrication mechanism according to claim 4, characterized in that: The surface of the plug (84) is fixedly connected to a guide block (85), and the guide block (85) and the gear (7) are slidably connected.

7. An intermediate shaft with a lubrication mechanism according to claim 4, characterized in that: One end of the compression spring (86) is in contact with the limiting sleeve (81), and the other end of the compression spring (86) is fixedly connected to the plug (84).

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