Lubricant retaining structure of transmission shaft

By combining the design of the drive shaft with the motor-driven lead screw system, precise adjustment and stable supply of lubricant to the drive shaft are achieved, solving the problem of inflexible lubricant delivery in the existing technology and improving assembly efficiency and maintainability.

CN223953804UActive Publication Date: 2026-02-27JIANHU HAISHENG MACHINERY MFR
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Patent Information

Application Number
CN202520432020.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-12
Publication Date
2026-02-27
Estimated Expiration
2035-03-12

AI Technical Summary

Technical Problem

Existing drive shaft lubricant retention structures are insufficient in terms of flexible control of lubricant delivery, lacking both quantitative delivery and storage mechanisms.

Method used

The design employs a combination of drive shaft, fixed plate, sliding assembly, auxiliary assembly, and lifting assembly. A forward and reverse motor drives the lead screw to move the interlocking ring and retaining plate, enabling precise adjustment of the lubricant storage space and delivery volume. The auxiliary assembly provides a large-capacity storage space and is interlocked with the drive shaft through the sliding assembly to ensure a tight connection.

Benefits of technology

It enables precise adjustment of the lubricant, avoids waste and leakage, maintains the cleanliness and stable performance of the lubricant, facilitates installation and disassembly, reduces installation difficulty and time costs, and improves assembly efficiency and maintainability.

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Abstract

The utility model relates to the technical field of mechanical design and manufacturing, and discloses a lubricant retaining structure of a transmission shaft, which comprises a transmission shaft, a fixed disc, a sliding component, an auxiliary component and a lifting component, a sliding assembly is embedded in the transmission shaft, and a fixing disc is fixedly arranged on the transmission shaft. The sliding assembly is fixedly sleeved with an auxiliary assembly, and a lifting assembly is arranged in the auxiliary assembly. A positive and negative rotation motor in the lifting assembly drives a lead screw to drive an embedding ring and a retaining plate to move, the position height of the retaining plate is adjusted and controlled through transmission of the lead screw and the embedding ring, the storage space and the conveying amount of a lubricant in a retaining box are accurately adjusted, waste and defects are avoided, and the working efficiency is improved. A large-capacity storage space is provided through the retaining box of the auxiliary assembly, the retaining box is fixed to the outer side of the scarf joint cylinder, the supplementing frequency is reduced, scarf joint of the sliding assembly and the transmission shaft and the connecting mode of all the assemblies are simple and easy to operate, mounting and dismounting are convenient and fast, the mounting difficulty and time cost are reduced, and the assembling efficiency and maintainability are improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical design and manufacturing technical field, concretely is a kind of lubricant holding structure of transmission shaft. BACKGROUND

[0002] The patent document with the existing announcement No.CN211599322U discloses a kind of lubricant holding structure of transmission shaft, can store a large amount of lubricant with relatively simple structure and provide lubricant smoothly, to further improve maintenance, the lubricant holding structure of transmission shaft includes: lubricant holding chamber, is formed in the central part of the cross axle of the joint of transmission shaft, and store lubricant;And multiple supply passages, from the lubricant holding chamber to the radial inner side of bearing arranged in the end of the cross axle, wherein the width of the lubricant holding chamber is greater than the width of the supply passage, and the lubricant holding chamber has the inner wall surface inclined towards the supply passage.

[0003] But the above scheme and prior art, when conveying lubricant to transmission shaft surface, its existing structure still has the deficiency in flexible control lubricant conveying, some holding structures lack ration delivery mechanism, and some structures do not have the mechanism of storing lubricant, so it can be improved and optimized.

[0004] Therefore, the utility model provides a kind of lubricant holding structure of transmission shaft for solving the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of lubricant holding structure of transmission shaft to solve the problems raised in the above background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of lubricant holding structure of transmission shaft, including transmission shaft, fixed disc, sliding assembly, auxiliary assembly, lifting assembly;

[0007] The sliding assembly is embedded on the transmission shaft, and the fixed disc is fixedly arranged on the transmission shaft.

[0008] The auxiliary assembly is fixedly sleeved on the sliding assembly, and the lifting assembly is arranged in the auxiliary assembly.

[0009] Preferably, the embedded tube in the sliding assembly is embedded on the transmission shaft, the sliding rod is fixedly arranged at the top end of the transmission shaft, and the sliding rod is fixedly connected to the transmission shaft by the fixed page.

[0010] Preferably, the sliding rod in the sliding assembly is adapted to be clamped with the clamping seat, the clamping seat is fixedly arranged at the inner top of the embedded tube, and the auxiliary assembly is fixedly arranged outside the embedded tube.

[0011] Preferably, the retaining box in the auxiliary assembly is fixedly arranged outside the embedding cylinder, the top of the retaining box is provided with a replenishment hole, and the bottom end of the retaining box is provided with a fixing plate, and the fixing plate is provided with an embedding hole.

[0012] Preferably, the screw rod in the lifting assembly is adaptively embedded in the embedding hole, the bottom end of the screw rod is fixedly provided with a forward-reverse motor, and the forward-reverse motor is fixedly arranged at the bottom end of the retaining box.

[0013] Preferably, the embedding ring in the lifting assembly is adaptively and slidingly embedded in the screw rod, the embedding ring is fixedly provided with a retaining plate, the top end of the screw rod is arranged at the bottom end of the embedding cylinder, and the bottom end of the embedding cylinder is provided with an input hole.

[0014] Compared with the prior art, the beneficial effects of the utility model are that: through the embedding ring and the retaining plate moving which are driven by the forward-reverse motor driving the screw rod in the lifting assembly, the position height of the retaining plate is realized through the transmission of the screw rod and the embedding ring, the lubricant storage space and the conveying amount in the retaining box are accurately adjusted, waste and deficiency are avoided, the retaining box of the auxiliary assembly provides large-capacity storage space, is fixed outside the embedding cylinder, the replenishment frequency is reduced, the components are closely connected, leakage and pollution are prevented, the lubricant cleanliness and performance stability are maintained, the embedding and connection mode of the sliding assembly and the transmission shaft and each component are simple and easy to operate, installation and disassembly are convenient, installation difficulty and time cost are reduced, assembly efficiency and maintainability are improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is an overall structure schematic view of the utility model;

[0016] Fig. 2 It is an overall structure longitudinal section schematic view of the utility model;

[0017] Fig. 3 It is a structure disassembly schematic view of the utility model;

[0018] Fig. 4 It is an overall structure horizontal section schematic view of the utility model.

[0019] In the drawing: transmission shaft 1, fixed disc 2, sliding assembly 3, auxiliary assembly 4, lifting assembly 5, embedding cylinder 301, sliding rod 302, fixed page 303, clamping seat 304, retaining box 401, replenishment hole 402, fixing plate 403, embedding hole 404, screw rod 501, forward-reverse motor 502, embedding ring 503, retaining plate 504, input hole 504. PREFERRED EMBODIMENT

[0020] In order to make the purpose, technical scheme of the utility model carry on clear, complete description, and the advantage is more clear and distinct, the following combining with the drawings to the utility model embodiment carries on further detailed description, should be understood, the specific embodiment described here is a part of the embodiment of the utility model, rather than all the embodiments, only to explain the embodiment of the utility model, and not for limiting the embodiment of the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor are within the scope of the utility model protection, the technical scheme in the embodiment of the utility model will be described clearly and completely below.

[0021] Embodiment one: please refer to Figs. 1-2 , including transmission shaft 1, fixed disc 2, sliding assembly 3, auxiliary assembly 4, lifting assembly 5;Transmission shaft 1 is embedded with sliding assembly 2, and the fixed disc 2 is fixedly arranged on the transmission shaft 1;Sliding assembly 3 is fixedly sleeved with auxiliary assembly 4, and the lifting assembly 5 is arranged in the auxiliary assembly 4.

[0022] The embedded tube 301 in the sliding assembly 3 is embedded on the transmission shaft 1, the top end of the transmission shaft 1 is fixedly provided with a sliding rod 302, and the sliding rod 302 is fixedly connected to the transmission shaft 1 through a fixed page 303.

[0023] When using, first, the embedded tube 301 is aligned with the transmission shaft 1 and is slowly pushed in for embedding installation, so that they are closely and uniformly matched, then, the sliding rod 302 is firmly fixed on the top end of the transmission shaft 1 by using the fixed page 303, and the installation of the fixed page 303 should ensure that the screw is tightened, so that the sliding rod 302 does not appear loose or displacement, so as to ensure the installation stability of the sliding assembly 3 on the transmission shaft 1, and lay a solid foundation for the installation of subsequent components.

[0024] Embodiment two: on the basis of embodiment one, please refer to Figs. 2-3 , the sliding rod 302 in the sliding assembly 3 is adaptively clamped with a clamping seat 304, the clamping seat 304 is fixedly arranged in the inner top of the embedded tube 301, and the auxiliary assembly 4 is fixedly arranged on the outer side of the embedded tube 301.

[0025] The retaining box 401 in the auxiliary assembly 4 is fixedly arranged on the outer side of the embedded tube 301, the retaining box 401 is provided with a supplement hole 402 on the top, the retaining box 401 is provided with a fixed plate 403 at the bottom end, and the fixed plate 403 is provided with an embedded hole 404.

[0026] In use, the clamping seat 304 is accurately clamped with the sliding rod 302, and some lubricant can be appropriately applied during the clamping process to reduce friction, ensure smooth and tight clamping, and further stabilize the position of the embedded sleeve 301. Then, the retaining box 401 is tightly attached to the outside of the embedded sleeve 301. When it is necessary to supplement the lubricant, the lubricant can be added to the retaining box 401 through the supplementing hole 402. The embedded hole 404 on the fixing plate 403 provides a basis for the subsequent installation of the lifting assembly 5, and it is necessary to ensure that the embedded hole 404 is not blocked or deformed.

[0027] Embodiment three: on the basis of embodiment two, please refer to Figs. 3-4 The lead screw 501 in the lifting assembly 5 is adaptively embedded in the embedded hole 403, and the bottom end of the lead screw 501 is fixedly provided with a forward and reverse motor 502, and the forward and reverse motor 502 is fixedly arranged at the bottom end of the retaining box 401.

[0028] The embedded ring 503 in the lifting assembly 5 is adaptively and slidingly embedded in the lead screw 501, and the retaining plate 504 is fixedly arranged on the embedded ring 503. The top end of the lead screw 501 is arranged at the bottom end of the embedded sleeve 301, and the bottom end of the embedded sleeve 301 is provided with an input hole 504.

[0029] In use, the lead screw 501 is embedded in the embedded hole 403, and before starting the forward and reverse motor 502, the motor is debugged to ensure that the forward and reverse functions are normal and the speed is stable. When the motor drives the lead screw 501 to rotate, the embedded ring 503 slides up and down along the lead screw 501, thereby driving the retaining plate 504 to move. When adjusting the height position of the retaining plate 504, the actual lubrication demand of the transmission shaft 1 should be considered for accurate control. For example, when the transmission shaft 1 is in high-speed operation and has a large load, the retaining plate 504 can be appropriately lowered to increase the storage space and the delivery amount of the lubricant. When the transmission shaft 1 operates relatively smoothly, the retaining plate 504 can be appropriately raised to reduce the supply of the lubricant, thereby avoiding waste. The lubricant can flow to the transmission shaft 1 through the input hole 504 at the bottom end of the embedded sleeve 301. During the entire use process, the components should be regularly inspected and maintained, such as the operating temperature of the motor and the wear condition of the lead screw 501, to ensure that the lubricant retaining structure can continuously and stably provide good lubrication effect for the transmission shaft 1.

[0030] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A lubricant retaining structure for a propeller shaft, characterized by: Including transmission shaft (1), fixed disc (2), sliding assembly (3), auxiliary assembly (4), lifting assembly (5); The transmission shaft (1) is embedded with a sliding assembly (2), and the transmission shaft (1) is fixedly provided with a fixed disc (2); The sliding assembly (3) is fixedly sleeved with an auxiliary assembly (4), and the auxiliary assembly (4) is provided with a lifting assembly (5) inside.

2. The lubricant retaining structure for a propeller shaft according to claim 1, characterized by: The embedded sleeve (301) in the sliding assembly (3) is embedded on the transmission shaft (1), the top end of the transmission shaft (1) is fixedly provided with a sliding rod (302), and the sliding rod (302) is fixedly connected to the transmission shaft (1) through a fixed page (303).

3. The lubricant retaining structure for a propeller shaft according to claim 2, characterized by: The sliding rod (302) in the sliding assembly (3) is fitted with a clamping seat (304), the clamping seat (304) is fixedly arranged in the inner top of the embedded sleeve (301), and the embedded sleeve (301) is fixedly provided with an auxiliary assembly (4) outside.

4. The lubricant retaining structure for a propeller shaft according to claim 3, characterized in that: The retaining box (401) in the auxiliary assembly (4) is fixedly arranged outside the embedded sleeve (301), the retaining box (401) is provided with a supplementary hole (402) at the top, the retaining box (401) is provided with a fixed plate (403) at the bottom, and the fixed plate (403) is provided with an embedded hole (404).

5. The lubricant retaining structure for a propeller shaft according to claim 1, characterized by: The lead screw (501) in the lifting assembly (5) is embedded on the embedded hole (403), the bottom end of the lead screw (501) is fixedly provided with a forward and reverse motor (502), and the forward and reverse motor (502) is fixedly arranged at the bottom end of the retaining box (401).

6. The lubricant retaining structure for a propeller shaft according to claim 5, characterized by: The embedded ring (503) in the lifting assembly (5) is slidably embedded on the lead screw (501), the embedded ring (503) is fixedly provided with a retaining plate (504), the top end of the lead screw (501) is arranged at the bottom end of the embedded sleeve (301), and the bottom end of the embedded sleeve (301) is provided with an input hole (504).

Citation Information

Patent Citations

  • Lubricant holding structure of transmission shaft

    CN211599322U