A guide structure for a crane

Abstract

The utility model relates to the field of crane guide, concretely relates to a crane's guide structure, including wheel seat, the inner wall fixed connection of wheel seat has deep groove ball bearing, cable guide wheel, the inner wall fixed connection of cable guide wheel has the dowel pin, lubricating mechanism, lubricating mechanism includes the oil tank, the outer wall fixed connection of oil tank in wheel seat, the bottom fixed connection of oil tank has electric push rod, the output end of electric push rod extends to the inside of oil tank and fixedly connected with the push -plate, the inner wall of oil tank is passed through and fixedly connected with the connecting pipe, the one end fixed connection of connecting pipe away from oil tank has the settlement elbow pipe, the one end fixed connection of settlement elbow pipe away from connecting pipe has the discharge pipe. Through the setting of lubricating mechanism, can when needing lubrication maintenance deep groove ball bearing, automatically to the steel ball inside deep groove ball bearing adds the lubricating oil, thereby does not need to go up the narrow space high altitude boom operation again, effectively reduced the security risk of maintenance bearing.

Description

Technical Field

[0001] This utility model relates to the field of crane guidance, specifically to a crane guidance structure. Background Technology

[0002] Cranes are indispensable heavy lifting equipment in fields such as engineering construction, port loading and unloading, and logistics transfer. When a crane is running, the guide wheels, through their preset installation positions and wheel groove structures, can effectively limit the movement trajectory of the cable, avoid unnecessary radial displacement, and thus reduce the impact of cable deviation on lifting accuracy, providing a strong guarantee for the smooth operation of equipment lifting.

[0003] When a crane cable is wound up, it comes into contact with the inner wall of the guide wheel groove. This contact inevitably generates friction, which in turn pushes the guide wheel to rotate. Compared to the sliding friction between the cable and the fixed parts, the rolling friction generated when the guide wheel rotates can significantly reduce the friction loss borne by the cable, thus making the cable winding up and down process smoother, reducing the risk of jamming, and extending the service life of the cable.

[0004] The smooth rotation of the guide wheel relies on the bearing components at its connection with the wheel seat. To reduce internal friction during bearing operation, regular lubrication and maintenance are required. However, to adapt to the force and guidance requirements of hoisting operations, the guide wheel is usually installed on the crane boom. When performing lubrication and maintenance, operators must climb onto the confined space of the boom, which not only restricts their operational capabilities but also exposes them to risks such as falls from heights and falling tools. This makes the daily maintenance of the guide wheel a safety hazard. Therefore, it is necessary to invent a crane guiding structure to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a guide structure for a crane. By setting up an oil tank to store lubricating oil, and by pushing a push plate with an electric push rod, and at the same time cooperating with a connecting pipe, a settling bend and a discharge pipe, the lubricating oil stored in the oil tank can drip onto the surface of the steel balls inside the deep groove ball bearing through the opening. In this way, the deep groove ball bearing can be automatically lubricated, so as to solve the safety hazards of manual lubrication, which requires climbing the high-altitude boom in a narrow space.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a guide structure for a crane, comprising: A wheel seat, wherein a deep groove ball bearing is fixedly connected to the inner wall of the wheel seat; A cable guide wheel, wherein a positioning pin is fixedly connected to the inner wall of the cable guide wheel; The lubrication mechanism includes an oil tank, which is fixedly connected to the outer wall of the wheel seat. An electric push rod is fixedly connected to the bottom end of the oil tank. The output end of the electric push rod extends into the interior of the oil tank and is fixedly connected to a push plate. A connecting pipe is fixedly connected through the inner wall of the oil tank. A settling bend is fixedly connected to the end of the connecting pipe away from the oil tank. A discharge pipe is fixedly connected to the end of the settling bend away from the connecting pipe. A through-hole is radially opened on the inner wall of the deep groove ball bearing.

[0007] Preferably, an oil injection pipe is fixedly connected to the top of the oil tank, and a pipe cap is threadedly connected to the outer wall of the oil injection pipe.

[0008] Preferably, the discharge pipe is connected to the inner wall of the wheel seat through and fixedly, and the end of the discharge pipe away from the settlement bend is located directly above the opening.

[0009] Preferably, the pusher piston is connected to the inner wall of the oil tank.

[0010] Preferably, the outer ring of the deep groove ball bearing is fixedly connected to the inner wall of the wheel seat, the inner ring of the deep groove ball bearing is fixedly connected to the outer wall of the locating pin, and the through-hole is opened in the outer ring of the deep groove ball bearing.

[0011] The technical effects and advantages provided by this utility model in the above technical solution are as follows: This invention, through the setting of a lubrication mechanism, can automatically add lubricating oil to the steel balls inside the deep groove ball bearing when lubrication and maintenance are required, thereby eliminating the need to climb the narrow space of the high-altitude crane for operation and effectively reducing the safety hazards of bearing maintenance. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the wheel seat of this utility model; Figure 3 This is a cross-sectional structural diagram of the fuel tank of this utility model; Figure 4 This utility model Figure 2 A magnified structural diagram at point A.

[0014] Legend: 1. Wheel seat; 2. Cable guide wheel; 3. Lubrication mechanism; 31. Oil tank; 32. Electric push rod; 33. Push plate; 34. Connecting pipe; 35. Settling bend; 36. Discharge pipe; 37. Oil injection pipe; 38. Pipe cover; 39. Port; 4. Deep groove ball bearing; 5. Locating pin. Detailed Implementation

[0015] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0016] This utility model provides, for example Figure 1 - Figure 3 The guide structure of a crane shown includes a wheel seat 1, a cable guide wheel 2, and a lubrication mechanism 3. A deep groove ball bearing 4 is fixedly connected to the inner wall of the wheel seat 1. The wheel seat 1 can be fixed to the boom of the crane by bolts, so as to fix the position of the cable guide wheel 2. The inner wall of the cable guide wheel 2 is fixedly connected with a positioning pin 5. The cable guide wheel 2 can limit the radial movement of the cable and guide the cable to make it wind up and unwind smoothly. The outer ring of the deep groove ball bearing 4 is fixedly connected to the inner wall of the wheel seat 1, and the inner ring of the deep groove ball bearing 4 is fixedly connected to the outer wall of the positioning pin 5. Through the connection of the positioning pin 5 and the deep groove ball bearing 4, the cable guide wheel 2 can rotate smoothly on the inner wall of the wheel seat 1. This reduces the friction between the cable and the deep groove ball bearing 4 and improves the service life of the cable. The opening 39 is opened on the outer ring of the deep groove ball bearing 4. like Figure 2 - Figure 4As shown, the lubrication mechanism 3 includes an oil tank 31, which is fixedly connected to the outer wall of the wheel seat 1. The oil tank 31 stores lubricating oil, allowing for remote lubrication of the deep groove ball bearing 4 without the need for manual lubrication from a height. An electric push rod 32 is fixedly connected to the bottom of the oil tank 31. The output end of the electric push rod 32 extends into the oil tank 31 and is fixedly connected to a push plate 33. The output rod of the electric push rod 32 is slidably connected to the oil tank 31. The push plate 33 is piston-connected to the inner wall of the oil tank 31. Activating the electric push rod 32 drives the push plate 33 to slide upwards along the inner wall of the oil tank 31. At this time, the push plate 33 will squeeze the lubricating oil stored inside the oil tank 31 upwards. A connecting pipe 34 penetrates and is fixedly connected to the inner wall of the oil tank 31, allowing the lubricating oil stored inside the oil tank 31 to be pumped upwards by the push plate 33. Under the pushing action, it will enter the interior of the connecting pipe 34 and flow into the interior of the settling bend 35 through the connecting pipe 34. The end of the connecting pipe 34 away from the oil tank 31 is fixedly connected to the settling bend 35. The lubricating oil inside the settling bend 35 can be stored inside it under the action of gravity, thereby sealing the settling bend 35, stopping the discharge of lubricating oil, and avoiding the waste of lubricating oil. The end of the settling bend 35 away from the connecting pipe 34 is fixedly connected to the discharge pipe 36. The lubricating oil inside the settling bend 35 will enter the interior of the discharge pipe 36 under the action of pressure. At this time, the lubricating oil inside the discharge pipe 36 will be discharged into the interior of the port 39. The inner wall of the deep groove ball bearing 4 has a radially opened port 39, which is used for the discharge pipe 36 to add lubricating oil into the interior of the deep groove ball bearing 4.

[0017] like Figure 2 - Figure 3 As shown, an oil filling pipe 37 is fixedly connected to the top of the oil tank 31. A pipe cap 38 is threadedly connected to the outer wall of the oil filling pipe 37. Rotating the pipe cap 38 separates it from the oil filling pipe 37, at which point lubricating oil can be added into the oil tank 31 through the oil filling pipe 37. Rotating the pipe cap 38 connects it to the oil filling pipe 37, thus sealing the oil filling pipe 37. The lubricating oil added into the oil tank 31 can maintain the deep groove ball bearing 4 multiple times. Compared with manual lubrication, it greatly reduces the frequency of needing to climb to a height for manual lubrication. In another embodiment, an external pipe for conveying lubricating oil can be threadedly connected to the oil filling pipe 37 via a threaded joint. In this way, there is no need to manually add lubricating oil. The pump can be remotely controlled to add lubricating oil into the oil tank 31 in conjunction with the pipe. Thus, there is no need to manually add lubricating oil, thereby eliminating the need for working at height.

[0018] like Figure 3 - Figure 4 As shown, the discharge pipe 36 passes through and is fixedly connected to the inner wall of the wheel seat 1. The end of the discharge pipe 36 away from the settlement bend 35 is located directly above the opening 39. The lubricating oil discharged from the discharge pipe 36 will drip onto the surface of the steel balls of the deep groove ball bearing 4 through the opening 39, thus lubricating the deep groove ball bearing 4.

[0019] The working principle of this utility model is as follows: When the bearing needs to be lubricated, simply activate the electric push rod 32 to drive the push plate 33 to slide upward on the inner wall of the oil tank 31. At this time, the push plate 33 will squeeze the lubricating oil stored inside the oil tank 31 upward. Under the pressure, the lubricating oil will enter the interior of the connecting pipe 34 and flow into the interior of the settling bend 35 through the connecting pipe 34. Under the continuous pressure of the push plate 33, the lubricating oil inside the settling bend 35 will enter the interior of the discharge pipe 36. At this time, the lubricating oil inside the discharge pipe 36 will be discharged into the interior of the port 39. After entering the interior of the port 39, the lubricating oil drips onto the surface of the steel balls of the deep groove ball bearing 4, thus lubricating the deep groove ball bearing 4.

[0020] Once lubrication is complete, the electric push rod 32 can be turned off, so that the push plate 33 no longer pushes the lubricating oil upward. At this time, the lubricating oil inside the settling bend 35 will be stored inside it under the action of gravity. The lubricating oil that settles inside the settling bend 35 due to gravity can block the settling bend 35 and prevent the lubricating oil stored in the oil tank 31 from being continuously discharged. In this way, the discharge of lubricating oil can be stopped when lubrication is not needed, thus avoiding the waste of lubricating oil.

[0021] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A guide structure for a crane, characterized in that, include: Wheel seat (1), the inner wall of which is fixedly connected to a deep groove ball bearing (4); Cable guide wheel (2), the inner wall of which is fixedly connected with a positioning pin (5); The lubrication mechanism (3) includes an oil tank (31), which is fixedly connected to the outer wall of the wheel seat (1). An electric push rod (32) is fixedly connected to the bottom end of the oil tank (31). The output end of the electric push rod (32) extends into the interior of the oil tank (31) and is fixedly connected to a push plate (33). A connecting pipe (34) is fixedly connected through the inner wall of the oil tank (31). A settlement bend (35) is fixedly connected to the end of the connecting pipe (34) away from the oil tank (31). A discharge pipe (36) is fixedly connected to the end of the settlement bend (35) away from the connecting pipe (34). A through-hole (39) is radially opened on the inner wall of the deep groove ball bearing (4).

2. The guide structure of a crane according to claim 1, characterized in that: The top of the oil tank (31) is fixedly connected to an oil injection pipe (37), and the outer wall of the oil injection pipe (37) is threadedly connected to a pipe cap (38).

3. The guide structure for a crane according to claim 1, characterized in that: The discharge pipe (36) passes through and is fixedly connected to the inner wall of the wheel seat (1), and the end of the discharge pipe (36) away from the settlement bend (35) is located directly above the opening (39).

4. The guide structure of a crane according to claim 1, characterized in that: The push plate (33) piston is connected to the inner wall of the oil tank (31).

5. The guide structure of a crane according to claim 1, characterized in that: The outer ring of the deep groove ball bearing (4) is fixedly connected to the inner wall of the wheel seat (1), the inner ring of the deep groove ball bearing (4) is fixedly connected to the outer wall of the locating pin (5), and the through (39) is opened on the outer ring of the deep groove ball bearing (4).

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