A combined trolley luffing mechanism support frame

Abstract

The utility model discloses a combined trolley luffing mechanism support frame, which belongs to the technical field of tower crane lifting mechanism. The key points of its technical solution include a first support plate and a second support plate, the right side of the first support plate is movably connected with a connecting rod, the right side of the connecting rod is movably connected to the second support plate, a reducer mounting ring is arranged on the inner side of the first support plate, a connecting spring is arranged on the outer side of the connecting rod, and a rope retaining shell is movably connected to the outer side of the connecting rod. The first support plate and the second support plate are fixed by connecting rods and bolts to effectively ensure the coaxiality of the mounting holes of the two side plates, and the detachable design can facilitate the assembly of structures such as a drum and a reducer, and facilitate the maintenance of the reducer. When the connecting rod contacts the lifting rope, the rope retaining shell will contact the rope and protect the connecting rod, and at the same time move along the outer side of the connecting rod.

Description

Technical Field

[0001] The utility model relates to the technical field of tower crane hoisting mechanisms, in particular to a combined trolley luffing mechanism support frame. Background Art

[0002] The lifting mechanism, also known as the hoisting mechanism, is a basic component of a crane for lifting and lowering objects. The lifting mechanism is driven by a lifting motor through a coupling and a hollow shaft of a reducer to rotate the drum, so that the wire rope cable wound on the drum drives the hook device to rise or fall. Corresponding couplings and support frames may be required for different lifting heights. The working quality of the lifting mechanism will directly affect the working performance of the entire crane.

[0003] The existing tower crane hoisting mechanism drum rope retaining structure is mostly a rigid integrated structure during normal use. Therefore, it is inconvenient to assemble, replace and maintain the drum and reducer. It is also difficult to adjust the installation method according to the length of the drum when installing structures of different sizes. Utility Model Content

[0004] The utility model provides a combined trolley luffing mechanism support frame, aiming to solve the problem that the existing tower crane hoisting mechanism drum rope retaining structure is mostly a rigid integrated structure during normal use, so the assembly, replacement and maintenance of the drum and the reducer are relatively inconvenient, and it is also difficult to adjust the installation method according to the length of the drum when installing structures of different sizes.

[0005] The utility model is implemented as follows: a combined trolley boom-changing mechanism support frame comprises a first support plate and a second support plate, the right side of the first support plate is movably connected with a connecting rod, the right side of the connecting rod is movably connected with the second support plate, a reducer mounting ring is arranged on the inner side of the first support plate, a connecting spring is arranged on the outer side of the connecting rod, a rope blocking shell is movably connected to the outer side of the connecting rod, and the inner side of the rope blocking shell is filled with viscous oil.

[0006] In order to achieve the effect of facilitating and quickly connecting the structure stably, as a preferred combined trolley luffing mechanism support frame of the utility model, the first support plate, the second support plate and the connecting rod are positioned by stoppers and connected by bolts.

[0007] In order to achieve the effect of facilitating the restoration of the structure after being subjected to force, as a preferred combined trolley luffing mechanism support frame of the utility model, the outer side of the connecting pull rod is movably connected to a polygonal shell, the outer side of the polygonal shell is bolted to a connecting spring, and the outer side of the connecting spring is movably connected to a sleeve shell.

[0008] In order to facilitate the circulation of viscous oil, as a preferred support frame of a combined trolley luffing mechanism of the utility model, the outer side of the casing is bolted to the rope retaining shell, and a circulation hole is opened on the inner side of the casing.

[0009] In order to facilitate the connection of the bolts, as a preferred embodiment of the combined trolley luffing mechanism support frame of the utility model, threaded holes are provided on the inner sides of both ends of the connecting rod.

[0010] In order to achieve the effect of improving the sealing between structures, as a preferred combined trolley boom length adjustment mechanism support frame of the utility model, a sealing ring is movably connected to the inner side of the connecting rod, and the sealing ring is movably connected to the rope retaining shell.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The combined trolley luffing mechanism support frame is fixed by connecting rods and bolts through the first support plate and the second support plate, which can effectively ensure the coaxiality of the mounting holes of the two side plates, and the detachable design can facilitate the assembly of structures such as the drum and the reducer, and facilitate the maintenance of the reducer. When the connecting rod contacts the lifting rope, the rope stop housing will contact the rope and protect the connecting rod, and at the same time move along the outer side of the connecting rod. At this time, the connecting spring accumulates force, and the connecting spring resets after the force stops, which can push the rope stop housing to reset for later reuse. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is the overall structural diagram of the combined trolley luffing mechanism support frame of the utility model;

[0014] Figure 2 It is a front cross-sectional view of the main structure of the utility model;

[0015] Figure 3 It is a left view of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the connecting rod of the utility model;

[0017] Figure 5 This is an internal schematic diagram of the connecting rod of the utility model;

[0018] Figure 6 It is a schematic diagram of the position of the casing of the utility model.

[0019] In the figure, 1, first support plate; 2, second support plate; 3, connecting rod; 4, connecting spring; 5, rope retaining shell; 6, polygonal shell; 7, sleeve shell; 8, sealing ring. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0021] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0022] See also Figure 1-6 The utility model provides a technical solution: a combined trolley luffing mechanism support frame, including a first support plate 1 and a second support plate 2, the right side of the first support plate 1 is movably connected with a connecting rod 3, the right side of the connecting rod 3 is movably connected with the second support plate 2, a reducer mounting ring is provided on the inner side of the first support plate 1, a connecting spring 4 is provided on the outer side of the connecting rod 3, a rope blocking shell 5 is movably connected to the outer side of the connecting rod 3, and the inner side of the rope blocking shell 5 is filled with viscous oil.

[0023] In this embodiment: the first support plate 1 and the second support plate 2 are fixed by the connecting rod 3 and bolts, so the coaxiality of the mounting holes of the two side plates can be effectively guaranteed, and the detachable design can facilitate the assembly of structures such as the drum and the reducer, and facilitate the maintenance of the reducer. When the connecting rod 3 contacts the lifting rope, the rope stop housing 5 will contact the rope and protect the connecting rod 3, and at the same time move along the outer side of the connecting rod 3. At this time, the connecting spring 4 accumulates force. After the force stops, the connecting spring 4 resets and can push the rope stop housing 5 to reset for later reuse.

[0024] As a technical optimization solution of the utility model, the first support plate 1, the second support plate 2 and the connecting rod 3 are positioned by stoppers and connected by bolts.

[0025] In this embodiment: the coaxiality of the mounting holes of the two side plates can be ensured by setting the stopper positioning, and the bolts can facilitate personnel to conveniently and stably install or disassemble the first support plate 1, the second support plate 2 and the connecting rod 3.

[0026] As a technical optimization solution of the utility model, the outer side of the connecting rod 3 is movably connected to a polygonal shell 6, the outer side of the polygonal shell 6 is bolted to the connecting spring 4, and the outer side of the connecting spring 4 is movably connected to a sleeve shell 7.

[0027] In this embodiment, by arranging the polygonal shell 6 to cooperate with the connecting spring 4, the polygonal shell 6 and the sleeve shell 7 can be easily connected, and a certain displacement distance can be provided between them, and the deformed connecting spring can be reset at the same time.

[0028] As a technical optimization solution of the present utility model, the outer side of the casing 7 is bolted to the rope blocking housing 5 , and a flow hole is opened on the inner side of the casing 7 .

[0029] In this embodiment, by providing the flow hole, it is possible to facilitate the oil to flow along the flow hole when the sleeve shell 7 and the rope blocking shell 5 move together along the connecting rod 3, and to achieve a buffering effect.

[0030] As a technical optimization solution of the present invention, threaded holes are provided on the inner sides of both ends of the connecting rod 3 .

[0031] In this embodiment, threaded holes are provided to facilitate screwing in bolts when connecting the connecting rod 3 with the first support plate 1 and the second support plate 2 for a stable connection.

[0032] As a technical optimization solution of the utility model, a sealing ring 8 is movably connected to the inner side of the connecting rod 3, and the sealing ring 8 is movably connected to the rope blocking housing 5.

[0033] In this embodiment, by providing the sealing ring 8, it is possible to ensure the sealing of the structure when the rope retaining housing 5 moves along the connecting rod 3, thereby avoiding the occurrence of liquid leakage.

[0034] Working principle: First, when in use, select a connecting rod 3 of corresponding length according to the reel to be installed, and screw the bolt into the threaded hole, and fix the first support plate 1, the second support plate 2 and the connecting rod. When the connecting rod 3 contacts the lifting rope, the rope stop housing 5 will contact the rope and protect the connecting rod 3. The rope stop housing 5 and the sleeve 7 connected to it will displace along the outside of the connecting rod 3 at the same time. At this time, the connecting spring 4 accumulates force, and the internal oil circulates along the circulation hole to a certain extent, and plays a buffering effect. After the force stops, the connecting spring 4 resets and pushes the rope stop housing 5 to reset.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A combined trolley luffing mechanism support frame, comprising a first support plate (1) and a second support plate (2), characterized in that: The right side of the first support plate (1) is movably connected to a connecting rod (3), and the right side of the connecting rod (3) is movably connected to the second support plate (2). A reducer mounting ring is provided on the inner side of the first support plate (1), and a connecting spring (4) is provided on the outer side of the connecting rod (3). The outer side of the connecting rod (3) is movably connected to a rope blocking housing (5), and the inner side of the rope blocking housing (5) is filled with viscous oil.

2. A combined trolley luffing mechanism support frame according to claim 1, characterized in that: The first support plate (1), the second support plate (2) and the connecting rod (3) are positioned by means of stoppers and connected by means of bolts.

3. The combined trolley luffing mechanism support frame according to claim 1, characterized in that: The outer side of the connecting rod (3) is movably connected to a polygonal outer shell (6), the outer side of the polygonal outer shell (6) is bolted to a connecting spring (4), and the outer side of the connecting spring (4) is movably connected to a sleeve shell (7).

4. The combined trolley luffing mechanism support frame according to claim 3 is characterized in that: The outer side of the casing (7) is bolted to the rope blocking outer shell (5), and a flow hole is provided on the inner side of the casing (7).

5. The combined trolley luffing mechanism support frame according to claim 1, characterized in that: Threaded holes are provided on the inner sides of both ends of the connecting rod (3).

6. The combined trolley luffing mechanism support frame according to claim 1, characterized in that: A sealing ring (8) is movably connected to the inner side of the connecting rod (3), and the sealing ring (8) is movably connected to the rope blocking housing (5).

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