Hand-cranked hose reel with damping adjustment mechanism for a shield

Abstract

This utility model provides a hand-cranked water pipe reel for a tunnel boring machine (TBM) with a damping adjustment mechanism, relating to the field of TBM equipment technology. It includes a base and a pair of guide wheel mechanism mounting plates. The base is bolted between the guide wheel mechanism mounting plates. A base is mounted on the top of the base, and a reducer bracket and a rotary joint bracket are respectively mounted on the top of the base. Both the reducer bracket and the rotary joint bracket have lifting eye holes on their tops. A limit switch mounting plate is mounted on the side wall of the reducer bracket, and a cam limit switch is mounted on the limit switch mounting plate. Reducer mounting plates are welded between the inner walls of the reducer bracket. A damper mounting plate is mounted on one side of the reducer mounting plate via a fastener. This device has a novel overall design and simple structure, and is therefore worthy of widespread promotion and use.

Description

Technical Field

[0001] This utility model belongs to the technical field of tunnel boring machine (TBM) equipment, and more specifically, it relates to a hand-cranked water pipe reel for TBMs with a damping adjustment mechanism. Background Technology

[0002] A tunnel boring machine (TBM) is a large-scale tunneling machine integrating mechanical, electrical, hydraulic, and sensor technologies. During tunneling operations, its key components, such as the cutterhead drive system and hydraulic control system, generate a large amount of heat. To ensure the continuous and stable operation of the equipment, it typically relies on a circulating water cooling system for effective heat dissipation. Therefore, the water supply pipeline connecting the TBM main unit to the rear fixed pump station plays a crucial role throughout the entire construction process and is a core component ensuring the normal operation of the equipment.

[0003] Based on the above, the applicant identified the following problems: As the tunnel boring machine (TBM) advances, the distance between the main unit and the supporting trolley gradually increases, requiring the cooling water pipes to be extended and retracted accordingly. During equipment commissioning or maintenance, some pipes often need to be retracted to reduce space occupation. Traditional operating methods often involve manually winding the pipes directly onto the ground or simple supports, relying on multiple workers to collaboratively drag and rewind them. This results in high labor intensity, low efficiency, and potential disruption to construction progress. Although some electrically or hydraulically driven automatic drum devices are available on the market, these devices generally suffer from complex structures, high manufacturing costs, large size, and reliance on external power sources. They are ill-suited to the practical engineering needs of projects with limited installation space and budgets, and are even less suitable for use in mine tunnels with explosion-proof requirements.

[0004] Therefore, in view of this, we will study and improve the existing structure and its shortcomings, and provide a hand-cranked water pipe drum for shield tunneling with a damping adjustment mechanism, in order to achieve a more practical purpose. Utility Model Content

[0005] The purpose and effectiveness of this utility model's shield tunneling machine with a damping adjustment mechanism using a hand-cranked water pipe reel are achieved through the following specific technical means:

[0006] A shield tunneling machine with a damping adjustment mechanism is equipped with a hand-cranked water pipe reel, comprising a base and a pair of guide wheel mechanism mounting plates. The base is bolted between the guide wheel mechanism mounting plates. A base is mounted on the top of the base, and a reducer bracket and a rotary joint bracket are respectively mounted on the top of the base. Both the reducer bracket and the rotary joint bracket have lifting eye holes on their tops. A limit switch mounting plate is mounted on the side wall of the reducer bracket, and a cam limit switch is mounted on the limit switch mounting plate. The reducer bracket has a reducer mounting plate welded between its inner walls. A damper mounting plate is mounted on one side of the reducer mounting plate via a fastener. A winding assembly is installed inside the damper mounting plate. A rotary joint mounting plate is mounted between the inner walls of the reducer bracket via a fastener, and a reel assembly is mounted between the reducer bracket and the rotary joint bracket via a connecting component.

[0007] Furthermore, the reel assembly includes a cylinder, a support plate is mounted on the surface of the cylinder, support rods are equidistantly mounted on the outer wall of the support plate, and a retaining ring is mounted on the cylinder through the support plate and the support rods.

[0008] Furthermore, a through-hole groove is provided at the center of the cylinder, and a bearing seat is installed in the through-hole groove. A rotary joint is installed on the cylinder through the bearing seat. The rotary joint is generally U-shaped. A 180-degree elbow is installed at one end of the rotary joint, and a sleeve is connected to the other end of the rotary joint. A rotary joint rotor and a rotary joint stator are respectively installed at both ends of the sleeve, and the rotary joint stator is connected to the center of the cylinder by bolts.

[0009] Furthermore, a mounting hole is provided at the center of the rotary joint mounting plate, and a semi-U-shaped elbow is installed at the center of the rotary joint mounting plate by bolts. The end of the semi-U-shaped elbow is assembled and installed with the rotary joint rotor by a seal and a bearing.

[0010] Furthermore, a speed reducer is mounted on the surface of the speed reducer mounting plate by fasteners, and one end of the speed reducer is assembled and installed with the side wall of the reel assembly by fasteners.

[0011] Furthermore, a handwheel is engaged with the inner walls of the damper mounting plate via a damping assembly. The handwheel includes a hub, a handwheel bushing is mounted at the center of the hub, and a plurality of spokes are equidistantly mounted on the outer wall of the hub. A rim is mounted on the hub via the spokes.

[0012] Furthermore, the damping assembly includes a damping disc mounted on the inner wall of the damper mounting plate. An adjusting nut, an adjusting pressure plate, a disc spring, and a brake disc 30 are sequentially mounted on the shaft of the handwheel bushing. The adjusting nut has evenly distributed adjusting pin holes. The brake disc has a sliding bearing and is mounted on the handwheel bushing via the sliding bearing.

[0013] Furthermore, a pin clutch device is provided on the wheel hub. The pin clutch device includes a handle and a pin that are perpendicular to each other. One end of the pin is threaded. The pin clutch device is fixed to the wheel hub by threaded connection. A guide wheel mechanism is installed on the surface of the guide wheel mechanism mounting plate. The guide wheel mechanism includes a pair of guide wheel bases mounted on the guide wheel mechanism mounting plate. A guide wheel shaft is installed between the guide wheel bases, and a guide wheel is fitted on the guide wheel shaft.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The shield tunneling machine hand-cranked water pipe reel with damping adjustment mechanism described in this utility model has a simple structure and reliable operation. The water pipe can be wound and released by simply rotating the handwheel, which reduces the burden of manpower, improves construction efficiency, and enhances the flexibility and safety of on-site operations. At the same time, by eliminating the huge drive system, the size and weight of the reel are significantly reduced, making it easier to arrange and install in the extremely limited space of the shield tunneling machine's supporting area.

[0016] All components of this utility model are installed on the drum base. The drum base adopts a welded frame structure, which is simple in structure and has good load-bearing capacity and stability. The drum base is equipped with a cam limit switch to effectively prevent excessive water pipe release and improve the convenience and safety of use.

[0017] The present invention features a guide arc structure at the outlet of the cylinder. The radius of curvature of the guide arc continuously increases along the outlet direction, forming an involute transition surface to guide the water pipe to extend smoothly and reduce bending stress. At the same time, a guide wheel mechanism is provided to avoid friction between the water pipe and the drum base during winding and unwinding, which greatly increases the service life of the water pipe.

[0018] This invention employs a damping adjustment mechanism to achieve adjustable braking torque. During the cable unwinding process of the water pipe reel, the compression of the disc spring is adjusted by rotating the adjusting nut, thereby changing the pressure on the brake disc and damping disc, allowing the braking torque to be adjusted in real time according to the working conditions. When reeling in the cable, the pin clutch device is removed from the hub, thus separating it from the brake disc, which completely disables the braking torque and reduces resistance during cable rewinding. Attached Figure Description

[0019] Figure 1This is a three-dimensional schematic diagram of the shield tunneling machine's hand-cranked water pipe reel with a damping adjustment mechanism.

[0020] Figure 2 This is a front plan view of the hand-cranked water pipe drum of the shield tunneling machine with a damping adjustment mechanism according to this utility model.

[0021] Figure 3 This is a schematic diagram of the installation of the reducer bracket and rotary joint in the hand-cranked water pipe drum of the shield tunneling machine with a damping adjustment mechanism.

[0022] Figure 4 This is a three-dimensional schematic diagram of the handwheel in the hand-cranked water pipe drum of the shield tunneling machine with a damping adjustment mechanism.

[0023] Figure 5 This is a plan view of the damping component in the hand-cranked water pipe drum of a shield tunneling machine with a damping adjustment mechanism.

[0024] Figure 6 This is a three-dimensional schematic diagram of the reel assembly in the hand-cranked water pipe drum of the shield tunneling machine with a damping adjustment mechanism.

[0025] Figure 7 This is a three-dimensional schematic diagram of the rotary joint in the hand-cranked water pipe drum of the shield tunneling machine with a damping adjustment mechanism.

[0026] Figure 8 This is a three-dimensional schematic diagram of the guide wheel mechanism in the hand-cranked water pipe drum of the shield tunneling machine with a damping adjustment mechanism.

[0027] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0028] 1. Base; 2. Handwheel; 3. Reducer; 4. Reel assembly; 5. Rotary joint; 6. Semi-U-shaped elbow; 7. Cam limit switch; 8. Guide wheel mechanism; 9. Damping disc; 10. Lifting eye hole; 11. Base; 12. Reducer bracket; 13. Damper mounting plate; 14. Limit switch mounting plate; 15. Reducer mounting plate; 16. Rotary joint bracket; 17. Rotary joint mounting plate; 18. Guide wheel mechanism mounting plate; 21 1. Handwheel bushing; 22. Hub; 23. Spoke; 24. Flange; 25. Pin clutch device; 26. Adjusting nut; 27. Adjusting pressure plate; 28. Disc spring; 29. ​​Sliding bearing; 30. Brake disc; 41. Cylinder; 42. Support plate; 43. Support rod; 44. Retaining ring; 51. Rotary joint rotor; 52. Rotary joint stator; 53. 180-degree elbow; 81. Guide wheel; 82. Guide wheel shaft; 83. Guide wheel base. Detailed Implementation

[0029] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0030] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0032] As attached Figure 1 To be continued Figure 8 As shown:

[0033] This utility model provides a hand-cranked water pipe reel for a tunnel boring machine with a damping adjustment mechanism, including a base 1 and a pair of guide wheel mechanism mounting plates 18. The base 1 is bolted between the pair of guide wheel mechanism mounting plates 18. A base 11 is mounted on the top of the base 1. A reducer bracket 12 and a rotary joint bracket 16 are respectively mounted on the top of the base 11. Both the reducer bracket 12 and the rotary joint bracket 16 have lifting eye holes 10 on their tops. A limiter mounting plate 14 is mounted on the side wall of the reducer bracket 12. A cam limit switch 7 is mounted on the limiter mounting plate 14. A reducer mounting plate 15 is welded between the inner walls of the reducer bracket 12. A damper mounting plate 13 is mounted on one side of the reducer mounting plate 15 through a fastener. A winding assembly is installed inside the damper mounting plate 13. A rotary joint mounting plate 17 is mounted between the inner walls of the reducer bracket 12 through a fastener. A reel assembly 4 is mounted between the reducer bracket 12 and the rotary joint bracket 16 through a connecting component.

[0034] The reel assembly 4 includes a cylinder 41, on the surface of which a support plate 42 is mounted. Support rods 43 are equidistantly mounted on the outer wall of the support plate 42. A retaining ring 44 is mounted on the cylinder 41 via the support plate 42 and the support rods 43. The left side of the reel is connected to the output shaft of the reducer 3 via a reel flange. The right side of the reel is bolted to the rotor portion of the rotary joint 51. A high-pressure water pipe for conveying cooling water is wound around the outside of the reel. One end of the high-pressure water pipe is led out from the guide wheel mechanism, and the other end is fluidly connected to the rotor joint via the rotary joint. A cam limit switch is connected to the reel via mechanical linkage. When the water pipe is released to a preset length, the cam limit switch 7 is triggered, stopping the reel rotation.

[0035] The cylinder 41 has a through-hole groove at its center, and a bearing seat is installed in the through-hole groove. A rotary joint 5 is installed on the cylinder 41 through the bearing seat. The rotary joint 5 is U-shaped. A 180-degree elbow 53 is installed at one end of the rotary joint 5, and a sleeve is connected to the other end of the rotary joint 5. A rotary joint rotor 51 and a rotary joint stator 52 are respectively installed at both ends of the sleeve, and the rotary joint stator 52 is connected to the center of the cylinder 41 by bolts.

[0036] The rotary joint mounting plate 17 has a mounting hole at its center, and a semi-U-shaped elbow 6 is bolted to the center of the rotary joint mounting plate 17. The end of the semi-U-shaped elbow 6 is assembled and installed with the rotary joint rotor 51 through a seal and a bearing.

[0037] The reducer 3 is mounted on the surface of the reducer mounting plate 15 by fasteners. One end of the reducer 3 is assembled and installed with the side wall of the reel assembly 4 by fasteners. The reducer 3 works in conjunction with the rotary joint rotor 51, rotary joint stator 52, cylinder 41, and support plate 42. When the reducer is in operation, it can drive the cylinder 41 to rotate. When the cylinder 41 is rotating, it can wind and reel the water pipe mounted on the rotary joint stator 52 into the groove between a pair of support rods 43. Through the above operation, a rapid winding effect can be achieved.

[0038] The handwheel 2 is installed between the inner walls of the damper mounting plate 13 by a damping assembly. The handwheel 2 includes a hub 22, a handwheel bushing 21 is installed at the center of the hub 22, and a plurality of spokes 23 are installed at equal intervals on the outer wall of the hub 22. A rim 24 is installed on the hub 22 through the spokes 23.

[0039] The damping assembly includes a damping disc 9 mounted on the inner wall of the damper mounting plate 13. An adjusting nut 26, an adjusting pressure plate 27, a disc spring 28, and a brake disc 30 are sequentially mounted on the shaft of the handwheel bushing 21. The adjusting nut 26 has evenly distributed adjusting pin holes. The brake disc 30 has a sliding bearing 29 inside and is mounted on the handwheel bushing 21 through the sliding bearing 29.

[0040] The hub 22 is provided with a pin clutch device 25, which includes a handle and a pin that are perpendicular to each other. One end of the pin is provided with a thread. The pin clutch device 25 is fixed to the hub 22 by the threaded connection. The guide wheel mechanism 8 is mounted on the surface of the guide wheel mechanism mounting plate 18. The guide wheel mechanism 8 includes a pair of guide wheel bases 83 mounted on the guide wheel mechanism mounting plate 18. A guide wheel shaft 82 is installed between the guide wheel bases 83, and a guide wheel 81 is fitted on the guide wheel shaft 82.

[0041] The specific usage and function of this embodiment are as follows:

[0042] The water hose reel is installed and fixed on the shield machine's trolley via a hand-cranked reel base. The structure is compact and does not obstruct the main working passage. A high-pressure water hose for supplying cooling water is wound around the outer circumference of the reel assembly 4. One end of the high-pressure water hose is led out from the guide wheel mechanism and is in fluid communication with the shield machine's main unit. The other end is connected to the fixed pump station via a rotary joint and rotary joint rotor 51, thus connecting the water supply pipeline between the shield machine's main unit and the rear fixed pump station. As the shield machine advances, the distance between the main unit and the rear trolley gradually increases. At this time, the pin clutch device 25, threaded onto the handwheel hub 22 and inserted into the oblong hole of the brake disc 30, can drive the brake disc 30 to rotate. The brake disc 30, due to the damping adjustment mechanism... The mechanism generates a frictional torque with the damping disc 9, causing the high-pressure water pipe to slowly pull out of the reel under external force, overcoming the braking torque. This prevents the pipe from falling off due to gravity while allowing for normal cable unwinding by the hand-cranked water pipe drum. The damping can also be changed by rotating the adjusting nut. During equipment debugging or maintenance, the distance between the main unit and the rear trolley gradually decreases, and the pin clutch device 25 can be unscrewed to disengage from the brake disc 30. Without braking torque, the operator can easily rewind the water pipe by rotating the handwheel, making the entire rewinding process labor-saving and efficient. This solves the problems of low water pipe rewinding efficiency, high labor intensity, high cost of automated rewinding, and excessive reliance on external power in existing technologies.

[0043] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A shield tunneling machine with a damping adjustment mechanism and a hand-cranked water pipe drum, comprising a base (1) and a pair of guide wheel mechanism mounting plates (18), wherein the base (1) is bolted between the pair of guide wheel mechanism mounting plates (18), characterized in that: A base (11) is installed on the top of the base (1). A reducer bracket (12) and a rotary joint bracket (16) are respectively installed on the top of the base (11). A lifting eye hole (10) is installed on the top of both the reducer bracket (12) and the rotary joint bracket (16). A limiter mounting plate (14) is installed on the side wall of the reducer bracket (12). A cam limit switch (7) is installed on the limiter mounting plate (14). A reducer mounting plate (15) is welded between the inner walls of the reducer bracket (12). A damper mounting plate (13) is installed on one side of the reducer mounting plate (15) through a fastener. A winding assembly is installed inside the damper mounting plate (13). A rotary joint mounting plate (17) is installed between the inner walls of the reducer bracket (12) through a fastener. A reel assembly (4) is installed between the reducer bracket (12) and the rotary joint bracket (16) through a connecting component.

2. The shield tunneling machine with a damping adjustment mechanism as described in claim 1, characterized in that: The reel assembly (4) includes a cylinder (41), a support plate (42) is mounted on the surface of the cylinder (41), support rods (43) are mounted at equal intervals on the outer wall of the support plate (42), and a retaining ring (44) is mounted on the cylinder (41) through the support plate (42) and the support rods (43).

3. The shield tunneling machine with a damping adjustment mechanism as described in claim 2, characterized in that: The cylinder (41) has a through-hole groove at its center, and a bearing seat is installed in the through-hole groove. A rotary joint (5) is installed on the cylinder (41) through the bearing seat. The rotary joint (5) is U-shaped. A 180-degree elbow (53) is installed at one end of the rotary joint (5). A sleeve is connected to the other end of the rotary joint (5). A rotary joint rotor (51) and a rotary joint stator (52) are installed at both ends of the sleeve, and the rotary joint stator (52) is connected to the center of the cylinder (41) by bolts.

4. The shield tunneling machine with a damping adjustment mechanism as described in claim 3, characterized in that: The rotary joint mounting plate (17) has a mounting hole at its center. A semi-U-shaped elbow (6) is bolted to the center of the rotary joint mounting plate (17). The end of the semi-U-shaped elbow (6) is assembled and installed with the rotary joint rotor (51) through a seal and a bearing.

5. The shield tunneling machine with a damping adjustment mechanism as described in claim 1, characterized in that: The speed reducer (3) is mounted on the surface of the speed reducer mounting plate (15) by fasteners, and one end of the speed reducer (3) is assembled and installed with the side wall of the reel assembly (4) by fasteners.

6. The shield tunneling machine with a damping adjustment mechanism as described in claim 1, characterized in that: A handwheel (2) is installed between the inner walls of the damper mounting plate (13) by a damping assembly. The handwheel (2) includes a hub (22), a handwheel bushing (21) is installed at the center of the hub (22), and a number of spokes (23) are installed at equal intervals on the outer wall of the hub (22). A rim (24) is installed on the hub (22) through the spokes (23).

7. The shield tunneling machine with a damping adjustment mechanism as described in claim 6, characterized in that: The damping assembly includes a damping disc (9) mounted on the inner wall of the damper mounting plate (13). The handwheel bushing (21) is fitted with an adjusting nut (26), an adjusting pressure plate (27), a disc spring (28), and a brake disc (30) in sequence. The adjusting nut (26) has evenly distributed adjusting pin holes. The brake disc (30) is provided with a sliding bearing (29) and is fitted onto the handwheel bushing (21) through the sliding bearing (29).

8. The shield tunneling machine with a damping adjustment mechanism as described in claim 6, characterized in that: The hub (22) is provided with a pin clutch device (25), which includes a handle and a pin that are perpendicular to each other. One end of the pin is provided with a thread. The pin clutch device (25) is fixed to the hub (22) by the threaded connection. The guide wheel mechanism (8) is installed on the surface of the guide wheel mechanism mounting plate (18). The guide wheel mechanism (8) includes a pair of guide wheel bases (83) installed on the guide wheel mechanism mounting plate (18). A guide wheel shaft (82) is installed between the guide wheel bases (83), and a guide wheel (81) is fitted on the guide wheel shaft (82).

Images