Novel hydraulic winch auxiliary brake device

Abstract

The utility model discloses a novel hydraulic winch auxiliary brake device which comprises a hydraulic pump assembly, a brake disc, a brake assembly and a pressure control valve, the hydraulic pump assembly outputs power and controls the brake assembly to work through the pressure control valve, the hydraulic pump assembly comprises a box body, two sides of the box body are connected with two box doors through hinges, and the box doors are connected with the brake disc. A hydraulic pump assembly is arranged in the box body, and a plurality of hanging lugs are fixedly connected to the top of the box body; the brake assembly comprises a mounting base located on one side of the brake disc, and two double-end hydraulic cylinders are arranged on the side, away from the brake disc, of the mounting base. The hydraulic system is adopted, pressure is easy to control, stepless adjustment of brake torque from zero to maximum brake torque can be achieved, various torque requirements can be met, operation is simplified, safety is improved, the structure is simple, quick-wear parts are convenient to detect and replace, maintenance time is short, auxiliary time is saved, and labor intensity is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of winch brakes, and in particular relates to a novel hydraulic winch auxiliary brake device. Background Art

[0002] The brake system of oil drilling rigs and workover rigs includes main brakes and auxiliary brakes;

[0003] The main brake and auxiliary brake of a drilling rig's drawworks must work in conjunction with each other. A working drawworks is primarily responsible for drilling, tripping, running casing, oil testing, and auxiliary tasks. The brake system, in conjunction with the rig's control system, controls the rotation of the drawworks drum, thereby controlling the lifting, lowering, and stopping of the traveling system. The safety and reliability of the main and auxiliary brakes are crucial to the safety of the oil rig's equipment, the operator's personal safety, and downhole safety. Poor brake system safety and reliability can easily lead to malfunctions and brake failure, which can damage the equipment at best and cause accidents such as drilling stoppage, drilling stall, drilling slippage, and overhead crane lifting in severe cases, even resulting in serious equipment and personal safety accidents involving machine destruction and fatalities.

[0004] Currently, the auxiliary brakes mainly include electromagnetic eddy current brakes, energy-consuming brakes, Eaton brakes, KOBELT disc brakes, etc.

[0005] The working principle of electromagnetic eddy current brake determines that there must be relative motion between the stator and rotor of the electromagnetic brake, which means that the drum cannot be completely braked.

[0006] The maximum braking torque of the dynamic braking system is limited by the capacity of the frequency converter; it has very strict requirements on the performance and installation of the electronic control system, and also has high requirements on the quality of the on-site personnel.

[0007] Eaton brakes and KOBELT disc brakes both use pneumatic control for braking. However, the air source in the field is easily contaminated, and compressed air easily releases moisture, which can contaminate valves and seals, adversely affecting the performance and life of various components. In northern winters, air lines can also freeze, even causing brake failure. To address this, we have developed a new hydraulic winch auxiliary brake device. Utility Model Content

[0008] In order to solve the above problems, the purpose of the utility model is to provide a new type of hydraulic winch auxiliary brake device.

[0009] To achieve the above-mentioned purpose, the utility model proposes a novel hydraulic winch auxiliary brake device, comprising a hydraulic pump assembly, a brake disc, a brake assembly and a pressure control valve, wherein the hydraulic pump assembly outputs power to control the operation of the brake assembly through the pressure control valve, the hydraulic pump assembly comprising a box body, two doors of which are connected on both sides of the box body by hinges, a hydraulic pump assembly is arranged inside the box body, and a plurality of hanging ears are fixedly connected to the top of the box body;

[0010] The brake assembly includes a mounting seat located on one side of the brake disc, and two double-headed hydraulic cylinders are provided on the side of the mounting seat away from the brake disc, and the output shaft movable sleeve of the double-headed hydraulic cylinder is provided with a first pin shaft, and the non-fixed sleeves at both ends of the first pin shaft are provided with spring connecting shafts, and springs are provided on both sides of the double-headed hydraulic cylinder, and the movable sleeves at both ends of the spring are provided on the spring connecting shaft, and the middle movable sleeve of the first pin shaft is provided with a rotating arm, and positioning columns fixedly connected to the mounting seat are provided on both sides of the rotating arm, and second pin shafts are fixedly connected on both sides of the rotating arm, and the second pin shaft movable sleeve is provided in the positioning column, and the rotating arm is rotatably connected to two brake calipers on the side close to the brake disc.

[0011] Preferably, a first through hole is provided on the output shaft of the double-headed hydraulic cylinder, and the first pin shaft movably passes through the first through hole.

[0012] Preferably, a groove is provided on the rotating arm, and the output shaft of the double-headed hydraulic cylinder is movably sleeved in the groove, second through holes are provided on both sides of the groove, and the first pin shaft movably passes through the second through holes.

[0013] Preferably, two mounting holes are provided on the first pin shaft, and the spring connecting shaft movably passes through the mounting holes, and a nut is provided on the external threaded sleeve of the spring connecting shaft.

[0014] Preferably, a third through hole is formed on the positioning column, and the second pin shaft movably passes through the third through hole.

[0015] Preferably, the side of the mounting seat close to the brake disc is an arc-shaped structure, a plurality of bolt holes are arranged in an array at the bottom of the mounting seat, and the bolt holes on the mounting seat are fixedly connected to the winch frame by bolts.

[0016] The new hydraulic winch auxiliary brake device proposed by the utility model can bring the following

[0017] Beneficial effects:

[0018] 1. The brake disc adopts an open installation structure, and the brake disc is naturally cooled by air, with good heat dissipation effect;

[0019] 2. Simple structure and low requirements on the use environment;

[0020] 3. Hydraulic braking does not require other resources such as water and electricity, and the system is simple; it reduces the number of related equipment and reduces costs;

[0021] 4. The hydraulic system pressure is easy to control, and the braking torque can be adjusted steplessly from zero to maximum braking torque to meet various torque requirements, which not only simplifies operation but also improves safety;

[0022] 5. Hydraulic brake, sensitive response and easy to operate;

[0023] 6. When achieving the same braking force, the volume of the hydraulic cylinder is relatively small, and the overall size is compact and reasonable, which makes it possible to further optimize the drilling platform space;

[0024] 7. To adapt to drilling rigs or workover rigs of different tonnages, brake calipers of different specifications or quantities can be used, achieving full coverage of matching different drilling rig specifications without changing the structure;

[0025] 8. The hydraulic source of the auxiliary brake can be integrated with the hydraulic station of the main brake, eliminating the need for a separate hydraulic station, further freeing up drilling floor space. A small hydraulic station can also be set up when needed, providing flexibility and maneuverability.

[0026] 9. Simple structure, easy inspection and replacement of wearing parts; short maintenance time, saving auxiliary time and reducing labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0028] In the attached figure:

[0029] Figure 1 It is a front view structural schematic diagram of the present utility model.

[0030] Figure 2 This is a schematic diagram of the three-dimensional structure of the hydraulic pump assembly of the present utility model.

[0031] Figure 3 This is a schematic diagram of the three-dimensional structure of the brake assembly and brake disc of the present utility model.

[0032] Figure 4 It is a schematic diagram of the three-dimensional structure of the pressure control valve of the present utility model.

[0033] In the figure: 1 hydraulic pump assembly, 101 housing, 102 housing door, 103 hydraulic pump assembly, 104 mounting ear, 2 brake disc, 3 brake assembly, 301 mounting seat, 302 first pin shaft, 303 double-headed hydraulic cylinder, 304 spring connecting shaft, 305 spring, 306 rotating arm, 307 positioning column, 308 second pin shaft, 309 brake caliper, 4 pressure control valve. DETAILED DESCRIPTION

[0034] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0035] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0037] In this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0038] In the present invention, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the descriptions with reference to the terms "one scheme", "some schemes", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more schemes or examples.

[0039] like Figures 1 to 4 As shown, the embodiment of the present utility model proposes a novel hydraulic winch auxiliary brake device, including a hydraulic pump assembly 1, a brake disc 2, a brake assembly 3 and a pressure control valve 4, wherein the hydraulic pump assembly 1 outputs power to control the operation of the brake assembly 3 through the pressure control valve 4, the hydraulic pump assembly 1 includes a box body 101, two sides of the box body 101 are connected to two box doors 102 by hinges, a hydraulic pump assembly 103 is provided inside the box body 101, and a plurality of hanging ears 104 are fixedly connected to the top of the box body 101;

[0040] The brake assembly 3 includes a mounting base 301 located on one side of the brake disc 2. Two double-headed hydraulic cylinders 303 are provided on the side of the mounting base 301 away from the brake disc 2. The output shaft of the double-headed hydraulic cylinder 303 is movably sleeved with a first pin shaft 302. The non-fixed sleeves at both ends of the first pin shaft 302 are provided with spring connecting shafts 304. Springs 305 are provided on both sides of the double-headed hydraulic cylinder 303, and the two ends of the spring 305 are movably sleeved on the spring connecting shaft 304. The middle movable sleeve of the first pin shaft 302 is provided with a rotating arm 306. Positioning columns 307 fixedly connected to the mounting base 301 are provided on both sides of the rotating arm 306. Second pin shafts 308 are fixedly connected on both sides of the rotating arm 306, and the second pin shaft 308 is movably sleeved in the positioning columns 307. The side of the rotating arm 306 close to the brake disc 2 is rotatably connected to two brake calipers 309.

[0041] like Figure 3 As shown, a first through hole is opened on the output shaft of the double-headed hydraulic cylinder 303, and the first pin shaft 302 movably passes through the first through hole, and the first pin shaft 302 can rotate in the first through hole.

[0042] like Figure 3 As shown, a groove is provided on the rotating arm 306, and the output shaft of the double-headed hydraulic cylinder 303 is movably sleeved in the groove, a second through hole is provided on both sides of the groove, and the first pin shaft 302 is movably passed through the second through hole, the output shaft of the double-headed hydraulic cylinder 303 can move in the groove, and the first pin shaft 302 moves in the second through hole.

[0043] like Figure 3 As shown, two mounting holes are provided on the first pin shaft 302 , and the spring connecting shaft 304 is movable through the mounting holes. The external threaded sleeve of the spring connecting shaft 304 is provided with a nut, which can limit the spring connecting shaft 304 to facilitate the spring 305 to tighten the spring connecting shaft 304 .

[0044] like Figure 3 As shown, a third through hole is formed on the positioning column 307, and the second pin shaft 308 is movable through the third through hole, and the second pin shaft 308 can move in the third through hole.

[0045] like Figure 3 As shown, the side of the mounting seat 301 close to the brake disc 2 is an arc-shaped structure, and a plurality of bolt holes are arranged in an array at the bottom of the mounting seat 301. The bolt holes on the mounting seat 301 are fixedly connected to the winch frame through bolts.

[0046] Working principle: The hydraulic pump assembly 103 on the pressure pump assembly 1 outputs power to control the operation of the brake assembly 3 through the pressure control valve 4. When the brake assembly 3 is working, the output shaft of the double-headed hydraulic cylinder 303 extends to drive the first pin shaft 302 to move, and the first pin shaft 302 will drive the rotating arm 306 and the second pin shaft 308 to rotate. The second pin shaft 308 will rotate on the positioning column 307, so that the rotating arm 306 will drive the brake caliper 309 to close to the brake disc 2 to complete braking, and the spring 305 tightens the spring connecting shaft 304 to help the rotating arm 306 to reset.

[0047] The various embodiments in this specification are described in a progressive manner. Similar parts between the various embodiments can be referred to in conjunction with each other. Each embodiment focuses on the differences between the other embodiments. In particular, the system embodiments are generally similar to the method embodiments, so the description is relatively simple. For relevant parts, refer to the description of the method embodiments.

[0048] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of the claims of the present invention.

Claims

1. A novel hydraulic winch auxiliary brake device, comprising a hydraulic pump assembly (1), a brake disc (2), a brake assembly (3) and a pressure control valve (4), wherein the hydraulic pump assembly (1) outputs power to control the operation of the brake assembly (3) through the pressure control valve (4), and is characterized in that: The hydraulic pump assembly (1) comprises a box body (101), two doors (102) are connected to each other on both sides of the box body (101) via hinges, a hydraulic pump assembly (103) is provided inside the box body (101), and a plurality of hanging ears (104) are fixedly connected to the top of the box body (101); The brake assembly (3) includes a mounting seat (301) located on one side of the brake disc (2), and two double-headed hydraulic cylinders (303) are provided on the side of the mounting seat (301) away from the brake disc (2). The output shaft of the double-headed hydraulic cylinder (303) is provided with a first pin shaft (302) in a movable sleeve, and the two ends of the first pin shaft (302) are provided with a spring connecting shaft (304) in a non-fixed sleeve. The two sides of the double-headed hydraulic cylinder (303) are provided with springs (305), and the two ends of the spring (305) are provided with a movable sleeve. On the spring connecting shaft (304), a rotating arm (306) is movably sleeved in the middle of the first pin shaft (302), and positioning columns (307) fixedly connected to the mounting seat (301) are provided on both sides of the rotating arm (306). Second pin shafts (308) are fixedly connected to both sides of the rotating arm (306), and the second pin shaft (308) is movably sleeved in the positioning columns (307). The rotating arm (306) is rotatably connected to two brake calipers (309) on one side close to the brake disc (2).

2. A novel hydraulic winch auxiliary brake device according to claim 1, characterized in that: A first through hole is provided on the output shaft of the double-head hydraulic cylinder (303), and the first pin (302) movably passes through the first through hole.

3. A novel hydraulic winch auxiliary brake device according to claim 1, characterized in that: A groove is provided on the rotating arm (306), and the output shaft of the double-head hydraulic cylinder (303) is movably sleeved in the groove. Second through holes are provided on both sides of the groove, and the first pin shaft (302) movably passes through the second through holes.

4. A novel hydraulic winch auxiliary brake device according to claim 1, characterized in that: Two mounting holes are provided on the first pin shaft (302), and the spring connecting shaft (304) movably passes through the mounting holes. The external threaded sleeve of the spring connecting shaft (304) is provided with a nut.

5. A novel hydraulic winch auxiliary brake device according to claim 1, characterized in that: A third through hole is formed on the positioning column (307), and the second pin shaft (308) movably passes through the third through hole.

6. A novel hydraulic winch auxiliary brake device according to claim 1, characterized in that: The side of the mounting seat (301) close to the brake disc (2) is an arc-shaped structure, and a plurality of bolt holes are arranged in an array at the bottom of the mounting seat (301), and the bolt holes on the mounting seat (301) are fixedly connected to the winch frame through bolts.

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