A flexible refueling device

Abstract

The utility model discloses a flexible oiling device. At least including front connecting pipe and rear connecting pipe, wherein, the shell between front connecting pipe and rear connecting pipe is connected through more than one bellows connector or spring connector, and the oil inlet of front connecting pipe and the oil outlet of rear connecting pipe are communicated through high pressure hose. The utility model discloses through bellows connector or spring connector connection oiling device and the oiling head of front end, can greatly improve the degree of freedom of oiling head.

Description

Technical Field

[0001] This utility model relates to a flexible refueling device. Background Technology

[0002] For many years, the sintering machine trolley wheels have been lubricated manually with grease added while the sintering machine is stopped. During the limited downtime for maintenance, the sintering machine trolley wheels often do not receive effective lubrication. Furthermore, the grease in the sintering machine trolley wheels is often depleted during the downtime intervals. Insufficient grease in the sintering machine wheels will shorten the bearing's lifespan, thus affecting the function of the trolley wheels. When the trolley wheels become stuck, the machine must be stopped immediately and the wheels replaced; otherwise, the overall operation of the sintering machine may be affected.

[0003] Replacing the sintering machine trolley during downtime has two main drawbacks: first, it impacts the sintering machine's operating rate and sinter output, leading to economic losses; second, it disrupts the material balance during sintering, causing unnecessary energy waste as the material rebalances from imbalance. Using an automatic lubrication system for the sintering machine can solve these problems. During automatic lubrication, the alignment of the lubrication nozzles is crucial. After prolonged heavy-duty operation, the sintering wheels develop complex shapes and postures, and their outer end faces are not parallel. Consequently, the axes of the lubrication nozzles located on these end faces or wheel axles are also not parallel. A major reason why previous automatic lubrication systems failed to achieve industrial-scale production was the low success rate of aligning the lubrication nozzles on the device with those on the trolley wheels.

[0004] Chinese patent application number 201910018703.X, entitled "An Automatic Alignment Refueling Gun with Double Eccentric Rings," discloses an automatic alignment refueling gun, but its structure is relatively complex. Utility Model Content

[0005] To address the aforementioned problems, the purpose of this utility model is to provide a flexible refueling connection device.

[0006] To achieve the above objectives, the flexible refueling device of this utility model includes at least a front connecting pipe and a rear connecting pipe.

[0007] The housings of the front connecting pipe and the rear connecting pipe are connected by one or more bellows connectors or spring connectors; the oil inlet of the front connecting pipe and the oil outlet of the rear connecting pipe are connected by a high-pressure hose.

[0008] Furthermore, an oil filler head is provided on the front connecting pipe.

[0009] Furthermore, the refueling nozzle includes:

[0010] Front connecting pipe; the front connecting pipe consists of a front section, a middle section and a tail section, wherein the diameter of the front section of the front connecting pipe is smaller than the diameter of the middle section of the front connecting pipe;

[0011] A hollow guide head is screwed into the middle section of the front connecting pipe; a guide cone sleeve is provided at the front end of the guide head, the large end of the guide cone sleeve has a diameter of 30-50 mm; the small end has a diameter of 13-15 mm; the small end of the guide cone sleeve is an oil outlet hole that communicates with the hollow part of the guide head;

[0012] The front section of the front connecting pipe is located in the hollow part inside the guide head; from front to back, a convex flexible sealing gasket, a thrust bearing, and an elastic support are sequentially fitted onto the front section of the front connecting pipe.

[0013] The front protrusion of the convex-shaped flexible sealing gasket is adapted to the oil outlet hole at the front end of the guide head; the rear end of the convex-shaped flexible sealing gasket is provided with a concave hole adapted to the front section of the front connecting pipe, and the convex-shaped flexible sealing gasket is sleeved on the front end of the front section of the front connecting pipe through the concave hole; the depth of the concave hole is greater than the length of the trolley wheel oil nozzle entering the oil outlet hole at the front end of the guide head.

[0014] The elasticity of the convex-shaped flexible sealing gasket is less than that of the elastic support.

[0015] Furthermore, the elastic support component is an elastic washer, a spring, or a disc spring.

[0016] Furthermore, a combined sealing ring is provided at the screw connection between the middle section of the front connecting pipe and the guide head.

[0017] Furthermore, the elastic support is a spring, and a pressure-boosting gasket assembly is provided between the spring and the middle section of the front connecting pipe.

[0018] This invention connects the refueling device to the front refueling head via a bellows connector or a spring connector, which greatly improves the freedom of movement of the refueling head. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of an embodiment of the flexible refueling device of this utility model.

[0020] Figure 2 This is a structural schematic diagram of another embodiment of the flexible refueling device of this utility model.

[0021] Figure 3 This is a schematic diagram of the refueling head in another embodiment of the flexible refueling device of this utility model.

[0022] Figure 4 for Figure 3 The diagram shows the structure of the fuel filler head during fueling.

[0023] Drawing number explanation:

[0024] (1) Front connecting pipe, (2) Rear connecting pipe, (3) High-pressure hose, (4) Corrugated pipe connector or spring connector, (5) Oil filler head Detailed Implementation

[0025] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0026] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0027] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] As an embodiment of this utility model, as shown in the figure, the front connecting pipe (1) and the oil filling head (5) are connected to the rear connecting pipe (2) and the oil filling gun. The high-pressure hose (3) is used to transport the oil from the rear connecting pipe to the front connecting pipe (1). The corrugated pipe connector or spring connector (4) is used for flexible connection, to compensate for the degree of freedom of the guide head, and can transmit torque and withstand bidirectional forces of compression and tension. (5) The oil filling head is used to fill the oil into the oil filling (pipe) nozzle.

[0030] As another embodiment of this utility model, the bellows connector or spring connector (4) can be used in series to increase the freedom of the oil filler head.

[0031] The fuel filler head 5 includes: (51) front connecting pipe, (52) guide head, (53) sealing gasket, (54) combined sealing ring, (55) support ring, (56) thrust bearing, (57) spring (disc spring) and (58) pressure boosting gasket assembly.

[0032] In practical application cases, (1) the front connecting pipe and the refueling device are threaded together. (2) The guide head has a guide cone sleeve for guiding the elastic refueling sealing device during the refueling process. The diameter of the large end of the guide cone sleeve is generally 40-50 mm, and the diameter of the small end is generally 13-15 mm, to match the refueling nozzle (diameter is 12 mm). (3) The sealing gasket is used to seal the oil nozzle on the refueling gun and the sintering machine trolley. The sealing gasket adopts a concave design. When the elastic refueling sealing device contacts the oil nozzle under the action of the machine arm, the concave structure can effectively absorb energy and reduce the wear of the flexible sealing gasket. After the sealing gasket and the oil nozzle are in contact, the refueling device starts to refuel. The pressure generated by the lubricating oil pressure in the cavity of the concave sealing gasket is greater than that on the oil nozzle side. The lubricating oil pressure in the cavity of the concave sealing gasket will generate a self-tightening function. (4) The combined sealing gasket is used to seal the guide head and the front sealing pipe. (5) The support ring is used to support the thrust bearing, and a spring (disc spring) is set at the rear. (6) A sealing gasket is provided at the front of the thrust bearing. When the sintering machine oil nozzle rotates, the guide sleeve cannot rotate synchronously with the oil nozzle. The front of the thrust bearing, the sealing gasket, and the oil nozzle move together to prevent the oil nozzle from rotating and wearing the sealing gasket. The rear core of the thrust bearing and the support ring are stationary. The oil nozzle thrust bearing and the support ring are pressed together, with a front connecting pipe passing through the middle. (7) The disc spring is used to support the support ring. When the elastic oil sealing device contacts the oil nozzle under the action of the machine arm, the disc spring can effectively absorb energy. When the disc spring is not provided, the pressure on the elastic pad is the stress generated by its own elastic deformation. When the disc spring is not provided, the pressure on the elastic pad is no greater than the elastic force generated when the spring deforms. (8) Increasing the thickness of the pressure-boosting gasket group can increase the pressure of the elastic oil sealing device and the oil nozzle of the sintering machine wheel. Thinning it can reduce the corresponding pressure.

[0033] This utility model utilizes the above technologies to effectively protect the sealing gasket, achieving effective sealing during refueling, and can dynamically adjust the tightness of the seal according to the actual situation during the production process. In specific application scenarios, a common refueling nozzle (59) is installed on the trolley wheel, which can achieve automatic oiling without the need for other auxiliary devices. When not using automatic refueling, the common refueling nozzle (59) can also achieve manual refueling.

[0034] The present invention has been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above-described embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention. Many other changes and modifications made without departing from the concept and scope of the present invention should be considered within the protection scope of the present invention.

[0035] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0036] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A flexible refueling device, characterized in that, It includes at least a front connecting pipe and a rear connecting pipe; The housings of the front connecting pipe and the rear connecting pipe are connected by one or more bellows connectors or spring connectors; the oil inlet of the front connecting pipe and the oil outlet of the rear connecting pipe are connected by a high-pressure hose.

2. The flexible refueling device as described in claim 1, characterized in that, An oil filler head is provided on the front connecting pipe.

3. The flexible refueling device as described in claim 2, characterized in that, The fuel filler includes: Front connecting pipe; the front connecting pipe consists of a front section, a middle section and a tail section, wherein the diameter of the front section of the front connecting pipe is smaller than the diameter of the middle section of the front connecting pipe; A hollow guide head is screwed into the middle section of the front connecting pipe; a guide cone sleeve is provided at the front end of the guide head, the large end of the guide cone sleeve has a diameter of 30-50 mm; the small end has a diameter of 13-15 mm; the small end of the guide cone sleeve is an oil outlet hole that communicates with the hollow part of the guide head; The front section of the front connecting pipe is located in the hollow part inside the guide head; from front to back, a convex flexible sealing gasket, a thrust bearing, and an elastic support are sequentially fitted onto the front section of the front connecting pipe. The front protrusion of the convex-shaped flexible sealing gasket is adapted to the oil outlet hole at the front end of the guide head; the rear end of the convex-shaped flexible sealing gasket is provided with a concave hole adapted to the front section of the front connecting pipe, and the convex-shaped flexible sealing gasket is sleeved on the front end of the front section of the front connecting pipe through the concave hole; the depth of the concave hole is greater than the length of the trolley wheel oil nozzle entering the oil outlet hole at the front end of the guide head. The elasticity of the convex-shaped flexible sealing gasket is less than that of the elastic support.

4. The flexible refueling device as described in claim 3, characterized in that, The elastic support components are elastic washers, springs, and disc springs.

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