Shield tail brush oiling device

By designing an oil gun with a spiral blade and transmission assembly, the problem of uneven oil injection in the tail brush was solved, achieving uniform grease distribution and improving oil injection efficiency and sealing effect.

CN223953799UActive Publication Date: 2026-02-27SICHUAN WESTERN TUNNEL HEAVY EQUIPMENT CO LTD
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Patent Information

Application Number
CN202520026312.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-07
Publication Date
2026-02-27
Estimated Expiration
2035-01-07

AI Technical Summary

Technical Problem

The existing shield tail brush oiling method is difficult to achieve uniform oiling, resulting in some areas where no grease is injected, which affects the sealing effect.

Method used

A grease gun comprising a helical blade and a transmission assembly was designed. The helical blade is driven to rotate on the inner wall of the grease gun through the meshing of the active bevel gear and the driven bevel gear, which helps to distribute the grease evenly.

Benefits of technology

This achieves uniform grease injection, improves grease injection efficiency, avoids uneven grease injection in certain areas, and ensures the watertightness of the shield tail seal.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of shield tunneling machines, and discloses a shield tail brush oiling device which comprises a steel plate, a steel wire brush is arranged in the steel plate, a clamping frame is arranged on the outer side of the steel plate, a clamping plate is fixedly installed on the left side of the clamping frame, and a threaded cylinder is fixedly installed on the top of the clamping frame. A threaded rod is screwed into the threaded cylinder, an insertion hole is formed in the bottom of the clamping frame, an oil injection gun is inserted into the insertion hole, one end of the oil injection gun is inserted into the steel wire brush, and the other end of the oil injection gun is internally communicated with an oil injection hose. According to the shield tail brush oiling device, a rocker is rocked to drive a rocking handle to rotate, namely, a driving bevel gear drives a driven bevel gear to rotate, so that a spiral blade rod is driven to rotate along the inner wall of an oiling gun, grease with poor flowability is assisted to be discharged outwards along a straight strip groove, and the grease can be uniformly injected into a steel wire brush; non-uniform local oil injection is avoided, and the oil injection efficiency can be improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a shield tail brush oil injection device. BACKGROUND

[0002] The shield tail brush is a main component of the shield tail sealing device, and is usually composed of a protection plate, a steel wire, a pressing plate and a base. This structure makes the shield tail brush flexible and deformed to adapt to the change of the shield tail gap. The main function of the shield tail brush is to constrain the space of the sealing grease and form a closed annular cavity, thereby ensuring that the water tightness of the grease reaches the minimum limit of the shield tail sealing.

[0003] The existing shield tail brush oil injection method is generally manual injection by inserting an oil gun between the steel wire brushes. However, due to the poor flowability of the grease and the single oil hole of the oil gun, it is difficult to uniformly inject the steel wire brushes, which may result in local positions of the steel wire brushes not being injected with grease. Therefore, further improvement is needed. SUMMARY

[0004] To solve the above problems, the utility model provides the following technical scheme: a shield tail brush oil injection device, comprising a steel plate, the inside of the steel plate is provided with a steel wire brush, the outside of the steel plate is provided with a clamping frame, the left side of the clamping frame is fixedly installed with a clamping plate, the top of the clamping frame is fixedly installed with a threaded cylinder, the inside of the threaded cylinder is rotatably connected with a screw rod, the bottom of the clamping frame is provided with a plug hole, the plug hole is inserted with an oil injection gun, one end of the oil injection gun is inserted into the steel wire brush, and the other end is connected with an oil injection hose.

[0005] As an optimization, the right end of the oil injection gun is fixedly installed with a handle, and the outside of the handle is sleeved with a rubber sheath.

[0006] As an optimization, the surface of the rubber sheath is provided with a pattern, which further increases the friction.

[0007] As an optimization, the two sides of the oil injection gun are fixedly installed with straight grooves, and the straight grooves are strip-shaped. The straight grooves can uniformly inject the grease in the oil injection gun into the steel wire brush, avoiding uneven injection of local grease.

[0008] As an optimization, the inside of the oil injection gun is rotatably connected with a spiral blade rod, the end of the handle close to the oil injection gun is provided with a transmission assembly for driving the spiral blade rod to rotate. The transmission assembly drives the spiral blade rod to rotate in the oil injection gun, which helps to discharge the grease with poor flowability.

[0009] As optimization, the transmission assembly comprises a fixed plate fixedly installed at the end of the handle, an inner part of the fixed plate is provided with a movable chamber, a driven bevel gear is fixedly installed at one end of the helical blade rod penetrating into the inner part of the movable chamber, a rotating shaft is rotatably connected to the top of the fixed plate, a driving bevel gear is fixedly installed at the bottom end of the rotating shaft penetrating into the movable chamber, and the driving bevel gear and the driven bevel gear are in meshing connection.

[0010] As optimization, a crank handle is fixedly installed at the top of the rotating shaft, and an end of the crank handle is rotatably connected with a crank rod.

[0011] The utility model discloses beneficial effect is:

[0012] The shield tail brush oil injection device, through the rotation of the rocker lever and the rotation of the crank handle, the driving bevel gear drives the driven bevel gear to rotate, so the helical blade rod rotates along the inner wall of the oil injection gun, and the poor flowability of the oil is assisted to discharge outward along the straight slot, so that the oil can be uniformly injected into the steel wire brush, avoiding uneven local oil injection, and improving the oil injection efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The utility model discloses structure schematic drawing;

[0014] Figure 2 The utility model discloses oil injection structure schematic drawing;

[0015] Figure 3 The utility model discloses oil injection gun structure inside schematic drawing;

[0016] Figure 4 The utility model discloses transmission structure inside schematic drawing.

[0017] In the figure: 1, steel plate;2, steel wire brush;3, clamping frame;4, clamping plate;5, threaded cylinder;6, screw;7, oil injection gun;8, oil injection hose;9, handle;10, straight slot;11, helical blade rod;12, fixed plate;13, movable chamber;14, driven bevel gear;15, rotating shaft;16, driving bevel gear;17, crank handle;18, crank rod. DETAILED DESCRIPTION

[0018] In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the present application.

[0019] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts under the premise that no creative efforts are made, belong to the scope of protection of the present application.

[0020] Please refer to Figures 1-2 A shield tail brush oil injection device, including steel plate 1, the inside of steel plate 1 is provided with steel wire brush 2, the outside of steel plate 1 is provided with clamping frame 3, the left side of clamping frame 3 is fixedly installed with clamping plate 4, the top of clamping frame 3 is fixedly installed with threaded cylinder 5, the inside of threaded cylinder 5 is screwed with screw rod 6, the bottom of clamping frame 3 is provided with insertion hole, the inside of insertion hole is inserted with oil injection gun 7, the right end of oil injection gun 7 is fixedly installed with handle 9, and the outside of handle 9 is sleeved with rubber sheath, the surface of rubber sheath is provided with lines, to further increase friction; one end of oil injection gun 7 is inserted into steel wire brush 2, and the other end is communicated with oil injection hose 8;

[0021] Please refer to Figures 1-2 The two sides of oil injection gun 7 are fixedly installed with straight slot 10, and the straight slot 10 is strip-shaped, and the oil in the inside of oil injection gun 7 can be uniformly injected into steel wire brush 2 through straight slot 10, to avoid local oil injection unevenness;

[0022] Please refer to Figures 3-4 The inside of oil injection gun 7 is rotatably connected with spiral blade rod 11, the end of handle 9 close to oil injection gun 7 is provided with transmission assembly for driving spiral blade rod 11 to rotate, spiral blade rod 11 is driven to rotate in the inside of oil injection gun 7 through transmission assembly, and then poor flowability oil is assisted to discharge outward, to improve oil injection efficiency;

[0023] Please refer to Figures 3-4 The transmission assembly comprises fixed plate 12 fixedly installed at the end of handle 9, the inside of fixed plate 12 is provided with activity chamber 13, one end of spiral blade rod 11 passing into the inside of activity chamber 13 is fixedly installed with driven bevel gear 14, the top of fixed plate 12 is rotatably connected with rotating shaft 15, the bottom end of rotating shaft 15 passing into the inside of activity chamber 13 is fixedly installed with driving bevel gear 16, and driving bevel gear 16 and driven bevel gear 14 are meshingly connected, rotating shaft 15 is driven to rotate through rotating, and then spiral blade rod 11 is driven to rotate through driven bevel gear 14 meshingly connected with driving bevel gear 16;

[0024] Please refer to Figures 3-4 The top of rotating shaft 15 is fixedly installed with crank handle 17, the end of crank handle 17 is rotatably connected with rocker 18, and rotating rocker 18 can drive rotating shaft 15 to rotate through crank handle 17, so that the transmission effect of spiral blade rod 11 can be achieved.

[0025] In use, first, the clamping frame 3 is buckled on the outer side of the steel plate 1, then the screw rod 6 is screwed in the threaded barrel 5 to abut against the outer side of the steel plate 1, thereby completing the installation of the clamping frame 3, then the oil injection gun 7 is inserted into the steel wire brush 2 through the insertion hole, and then the oil is delivered into the oil injection gun 7 through the oil injection hose 8, thereby the oil injection can be carried out;

[0026] In this process, the rocker 18 is rocked to drive the rocking handle 17 to rotate, so the driving bevel gear 16 is synchronously rotated, thereby the helical blade rod 11 is driven to rotate through the driven bevel gear 14 meshed with the driving bevel gear 16, and the poor flowability oil is assisted to flow outward along the straight slot 10 through the helical blade rod 11 rotating along the inner wall of the oil injection gun 7, thereby the oil can be uniformly injected into the steel wire brush 2.

[0027] In summary, the shield tail brush oil injection device drives the rocking handle 17 to rotate through the rocker 18, thereby the driven bevel gear 14 is driven to rotate through the driving bevel gear 16, so the helical blade rod 11 is driven to rotate along the inner wall of the oil injection gun 7, thereby the poor flowability oil is assisted to flow outward along the straight slot 10, thereby the oil can be uniformly injected into the steel wire brush 2, avoiding local uneven oil injection, and improving the oil injection efficiency.

[0028] In the description of the utility model, unless another definite provision and limitation, the term "set", "installation", "connect", "connection", "fix" should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication or two elements of the interaction relationship. For ordinary skilled in the art, the above-mentioned terms can be understood according to the specific meaning of the utility model in the specific circumstances.

[0029] The standard parts used in the utility model can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings.

[0030] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled in the art can be replaced or changed according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A shield tail brush oiling device comprising a steel plate (1), characterized in that: The inside of the steel plate (1) is provided with a steel wire brush (2), the outside of the steel plate (1) is provided with a clamping frame (3), the left side of the clamping frame (3) is fixedly installed with a clamping plate (4), the top of the clamping frame (3) is fixedly installed with a threaded cylinder (5), the inside of the threaded cylinder (5) is screwed with a screw rod (6), the bottom of the clamping frame (3) is provided with a jack, the inside of the jack is inserted with an oil injection gun (7), one end of the oil injection gun (7) is inserted into the steel wire brush (2), and the other end is communicated with an oil injection hose (8).

2. The shield tail brush lubricator of claim 1, wherein: The right end of the oil injection gun (7) is fixedly installed with a handle (9), and the outside of the handle (9) is sleeved with a rubber sheath.

3. The shield tail brush oiling device of claim 2, wherein: The surface of the rubber sheath is provided with a pattern.

4. The shield tail brush lubricator of claim 1, wherein: The both sides of the oil injection gun (7) are fixedly installed with straight grooves (10), and the straight grooves (10) are strip-shaped.

5. The shield tail brush lubricator of claim 2, wherein: The inside of the oil injection gun (7) is rotatably connected with a spiral blade rod (11), and the end of the handle (9) close to the oil injection gun (7) is provided with a transmission assembly for driving the spiral blade rod (11) to rotate.

6. The shield tail brush lubricator of claim 5, wherein: The transmission assembly comprises a fixed plate (12) fixedly installed at the end of the handle (9), an activity chamber (13) is formed in the inside of the fixed plate (12), a driven bevel gear (14) is fixedly installed at one end of the spiral blade rod (11) penetrating into the inside of the activity chamber (13), a rotating shaft (15) is rotatably connected to the top of the fixed plate (12), a driving bevel gear (16) is fixedly installed at the bottom end of the rotating shaft (15) penetrating into the activity chamber (13), and the driving bevel gear (16) and the driven bevel gear (14) are meshingly connected.

7. The shield tail brush lubricator of claim 6, wherein: The top of the rotating shaft (15) is fixedly installed with a crank handle (17), and the end of the crank handle (17) is rotatably connected with a rocker (18).