Spring type flexible oil feeding device

Abstract

The invention discloses a spring type flexible oil feeding device. Comprising a moving platform parallel to the running direction of the trolley, and a moving base is arranged on the moving platform; a driving cylinder and an oil gun unit are arranged on the base; the driving cylinder is used for driving the oil gun unit to reciprocate towards the trolley; and a flexible part capable of enabling the refueling wheel to generate flexible deviation is arranged on the refueling gun unit. A spring self-adaptive structure is arranged between the oil feeding nozzle and the driving device, the position error of a trolley wheel oil cup, long-time running abrasion of the wheel and the following error of tracking wheel movement are compensated, it is guaranteed that the oil feeding nozzle is stably in butt joint with the oil cup on the wheel under the action of the guide sleeve, the oiling success rate is increased, and the oiling efficiency is improved. And the malposition between the oil feeding nozzle guide head and the wheel oil cup guide sleeve can be prevented, so that the oil feeding device can be prevented from being blocked in the guide sleeve to cause faults.

Description

Technical Field

[0001] The patent of this invention relates to an automatic oiling device for sintering machine wheels in sintering production in the metallurgical industry, and also to a chain wheel oiling device. Background Art

[0002] During the production process of the sintering machine, the sintering machine trolley needs to maintain a continuous working state. Since the wheels of the sintering machine trolley are subjected to harsh working conditions such as high temperature, heavy load, impact vibration, dust scouring and water flushing during operation, the bearing wear is aggravated, and high requirements for grease replenishment are required.

[0003] In recent years, some online automatic refueling devices have appeared one after another, which can follow the movement of the wheel and smoothly add lubricating oil after docking. However, most of them remain in the theoretical research stage. The main reasons are: 1. In the actual application process, because the wheel end cover of the trolley is a casting, the installation position of the oil cup is less consistent, and there is an error in the position of the oil cup on the wheel; 2. After a long time of operation, the wheel rims of the trolley wheels are unevenly worn, and there are large differences in the diameters of old wheels; 3. The tracking device following the trolley wheel has irregular tracking deviations under long-term operation and signal interference. Therefore, the oil cup will deviate from the theoretical wheel center position by about ±8mm, resulting in the phenomenon that the refueling gun and the oil cup cannot be docked, or even the refueling gun is stuck in the guide device of the oil cup and cannot be detached in time and cut off, resulting in a low refueling success rate. Summary of the invention

[0004] In order to solve the above technical problems, the object of the present invention is to provide a spring-type flexible oil supply device.

[0005] To achieve the above-mentioned purpose, the spring-type flexible oil supply device of the present invention comprises a mobile platform arranged parallel to the running direction of the trolley, a mobile base is arranged on the mobile platform; a driving cylinder and a refueling gun unit are arranged on the base; the driving cylinder is used to drive the refueling gun unit to reciprocate in the direction of the trolley;

[0006] The refueling gun unit is provided with a flexible component which can cause the refueling wheel to deflect flexibly.

[0007] Furthermore, a sliding bearing seat is provided on the movable base, a sliding bearing is installed in the sliding bearing seat; a sliding sleeve is slidably provided in the sliding bearing; the free end of the driving cylinder is connected to the tail of the sliding sleeve;

[0008] The tail of the refueling gun unit is located in the sliding sleeve and is connected to the flexible high-pressure oil supply pipeline.

[0009] Furthermore, the flexible component includes a front coupling body, a pull rod, a front hemisphere, a rear hemisphere, a spring, a rear coupling body, and a locking nut;

[0010] The tail of the front coupling body is provided with a hemispherical connecting portion adapted to the front hemispherical body;

[0011] The front end of the sliding sleeve is connected with a rear coupling body;

[0012] The head of the rear coupling body is provided with a hemispherical connecting portion adapted to the rear end hemispherical body;

[0013] The tail of the front coupling body, the front hemisphere, the head of the rear coupling body, and the upper axial direction of the rear hemisphere are coaxially provided with connecting through holes;

[0014] The front end of the pull tube is connected to the connecting through hole of the front hemisphere through a locking nut;

[0015] The rear end of the pull tube is connected to the connecting through hole of the rear end hemisphere through a locking nut;

[0016] A spring is sleeved on the pull rod between the tail of the front coupling body and the head of the rear coupling body;

[0017] A refueling gun is arranged at the head of the front coupling cylinder;

[0018] The tail of the refueling gun is connected to the front end of the pull tube at the tail of the front coupling body through a hose;

[0019] The tail of the pull tube is located in the sliding sleeve and is connected to the flexible high-pressure oil supply pipeline.

[0020] Furthermore, the spring outer sleeve is provided with a dustproof bellows.

[0021] Furthermore, a fixed bracket is provided at the tail of the sliding sleeve, and the free end of the driving cylinder is connected to the fixed bracket via a rotating joint.

[0022] Furthermore, the rotary joint is provided with an oil inlet and an oil outlet, the oil inlet is connected to a flexible high-pressure oil supply pipeline; the oil outlet is connected to the tail of the pull tube through the flexible high-pressure pipeline.

[0023] Furthermore, the rear end hemisphere and the inner spherical surface of the rear coupling body form a spherical pair;

[0024] The front end hemisphere and the inner spherical surface of the front coupling body form a spherical pair.

[0025] Furthermore, the refueling gun head comprises a refueling rod, a guide head, and a refueling nozzle;

[0026] The refueling rod is installed on the front connecting cylinder of the flexible component; the refueling nozzle is fixed on the refueling rod by threaded connection, and the guide head wraps the refueling nozzle and is fixedly connected with the refueling rod.

[0027] The present invention arranges a spring adaptive structure between the oiling nozzle and the driving device to compensate for the position error of the trolley wheel oil cup, the long-term running wear of the wheel and the following error of tracking the wheel movement, so as to ensure that the oiling nozzle can stably dock with the oil cup on the wheel under the action of the guide sleeve, thereby improving the success rate of oiling and preventing the misalignment between the oiling nozzle guide head and the wheel oil cup guide sleeve from causing the oiling device to be stuck in the guide sleeve and malfunction. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0029] Figure 2 It is a schematic diagram of the state where the refueling gun head and the wheel oil cup guide sleeve are just in contact with each other according to an embodiment of the present invention.

[0030] Figure 3 It is a schematic diagram of the state where the refueling gun head and the oil cup according to an embodiment of the present invention are connected.

[0031] Description of the figure numbers: 1-driving device; 2-movable base; 21-sliding bearing; 22-bearing seat; 23-bearing end cover; 31-rear refueling pipe assembly; 32-front refueling pipe assembly; 4-flexible component; 41-front coupling body; 42-pull rod; 43-hemispherical body; 44-dustproof bellows; 45-spring; 46-rear coupling body; 47-locking nut; 48-sliding sleeve; 49-fixed bracket; 5-refueling gun head; 51-refueling rod; 52-guide head; 53-refueling gun head; 6-swivel joint; 7-trolley wheel component; 71-oil nozzle; 72-guide sleeve; 73-trolley wheel; DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0033] 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", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the 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.

[0034] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0035] Example:

[0036] As attached Figures 1 to 3 As shown, a spring-type flexible oil supply device of the present invention includes a driving device 1, a movable base 2, a plurality of oil filling pipes 3, a flexible component 4, a oil filling gun head 5, a rotating joint 6 and a trolley wheel system 7.

[0037] The movable base 2 includes a sliding bearing 21, a sliding bearing seat 22 and a bearing stop end cover 23. The sliding bearing seat 2 is installed on the refueling device and can follow the movement of the trolley wheel system 7 under the drive of the refueling device following system.

[0038] The driving cylinder 1 is installed on a moving base 2 .

[0039] The flexible component 4 includes a front coupling body 41 , a pull rod 42 , a front hemisphere 43 - 1 , a rear hemisphere 43 - 2 , a dustproof bellows 44 , a spring 45 , a rear coupling body 46 , a locking nut 47 , a sliding sleeve 48 , and a fixing bracket 49 .

[0040] The sliding sleeve 48 is installed in the sliding bearing 22 of the mobile base 2, and the rear end is connected to the driving cylinder 1, and can move forward and backward along the sliding bearing 22 under the action of the driving cylinder 1;

[0041] The rear coupling body 46 is threadedly fastened with the front end of the sliding sleeve 48, and is connected to the front coupling body 41 through the front hemisphere 43-1, the rear hemisphere 43-2, the spring 45, the pull rod 42 and the locking nut 47;

[0042] The spring 45 is a compression spring, and is disposed between the rear coupling body 46 and the front coupling body 41;

[0043] The rear hemisphere 43-2 and the rear coupling body 46, and the front hemisphere 43-1 and the inner spherical surface of the front coupling body form a spherical pair;

[0044] The pull rod 42 passes through the front hemisphere 43-1, the front coupling cylinder 41, the spring 45, the rear coupling cylinder 46, and the rear hemisphere 43-2 in sequence, and is fixed by a locking nut 47. The pull rod 42 is provided with an inner hole and threaded connection ports at both ends.

[0045] The dustproof bellows 44 is installed on the rear connecting cylinder body 46 and the front connecting cylinder body 41 and is wrapped around the spring 45 .

[0046] The fixing bracket 49 is arranged at the rear end of the inner cavity of the sliding sleeve 48 .

[0047] The refueling gun head 5 comprises a refueling rod 51, a guide head 52, and a refueling nozzle 53. The refueling rod 51 is installed on the front coupling body 41 of the flexible component 4; the refueling nozzle 53 is fixed to the refueling rod 51 by threaded connection, and the guide head 52 wraps the refueling nozzle 53 and is fixedly connected to the refueling rod 51.

[0048] The refueling pipe 3 comprises a rear refueling pipe assembly 31 and a front refueling pipe assembly 32. One end of the rear refueling pipe assembly 31 is connected to the rear end of the pull rod 42 of the flexible component 4, and the other end is fixed by a fixing bracket 49 in the inner cavity of the sliding sleeve 48, and is connected to the high-pressure oil supply pipeline through a rotating joint 6; the front refueling pipe assembly 32 is installed at the threaded connection port of the refueling hole of the refueling rod 51 of the refueling gun head 5, and the other end is installed at the front end of the pull rod 42 of the flexible component 4.

[0049] The trolley wheel system 7 includes an oil cup 71, a guide sleeve 72 and a wheel 73. The oil cup 71 and the guide sleeve 72 are concentric.

[0050] The working principle is:

[0051] In the initial state, the driving cylinder 1 is retracted, and the flexible component 4 and the refueling gun head 5 installed thereon are at the rear end driven by the driving cylinder 1. The axes of the refueling gun head 5, the front connecting cylinder 41, the rear connecting cylinder 46 and the sliding sleeve 48 are in the same straight line. The oil cup 71 and the guide sleeve 72 are installed on the trolley wheel 73. The oil cup 71 is concentric with the guide sleeve 72, and there is a position error with the axis of the wheel 73, which is assumed to be δ1; the wheel 73 also has a deviation from the theoretical axis due to wear and other reasons, which is assumed to be δ2. The tracking control error is assumed to be δ3. Therefore, the error δ4 between the center line of the refueling gun head 5 of the refueling device and the center line of the oil cup is in the range of: 0<δ4<|δ1+δ2+δ3|.

[0052] During operation, under the action of the driving cylinder 1, the flexible component 4 and the refueling gun head 5 move forward. When the guide head 52 of the refueling gun head 5 contacts the guide sleeve 72 of the wheel system 7, the guide head 52 will slide along the guide surface of the inner wall of the guide sleeve 72. At this time, the spring 45 of the flexible component 4 is bent and deformed, and the pull rod 42 tightens the rear coupling cylinder 46 and the front coupling cylinder 41 through the spherical pair formed by the two hemispheres 43-1 and 43-2. ​​The axis of the refueling gun head 5 and the center line of the rear coupling cylinder 46 and the sliding sleeve 48 are flexibly offset, and the guide head 52 moves smoothly along the guide surface of the guide sleeve 72 until it docks with the oil cup 71. After that, the high-pressure oil supply pipe starts to supply oil.

[0053] After the oiling is completed, the driving cylinder 1 retracts, the flexible component 4 and the refueling gun head 5 retract to the rear end, and the refueling gun head 5, the front connecting cylinder 41, the rear connecting cylinder 46 and the sliding sleeve 48 are restored to the same straight line under the action of the spring 42 to prepare for refueling the next wheel.

[0054] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0056] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A spring-type flexible oil supply device, comprising a movable platform arranged parallel to the running direction of the trolley, characterized in that: A mobile base is provided on the mobile platform; a driving cylinder and a refueling gun unit are provided on the base; the driving cylinder is used to drive the refueling gun unit to reciprocate in the direction of the trolley; The refueling gun unit is provided with a spring-type flexible component which enables the refueling gun to undergo flexible deflection.

2. The spring-type flexible oil supply device according to claim 1, characterized in that: A sliding bearing seat is provided on the movable base, a sliding bearing is installed in the sliding bearing seat; a sliding sleeve is slidably provided in the sliding bearing; the free end of the driving cylinder is connected to the tail end of the sliding sleeve; The tail of the fuel gun unit is located in the sliding sleeve and is connected to the flexible high-pressure fuel supply pipeline.

3. The spring-type flexible oil supply device according to claim 2, characterized in that: The spring-type flexible component includes a front coupling body, a pull rod, a front hemisphere, a rear hemisphere, a spring, a rear coupling body, and a locking nut; The tail of the front coupling body is provided with a hemispherical connecting portion adapted to the front hemispherical body; The front end of the sliding sleeve is connected with a rear coupling body; The head of the rear coupling body is provided with a hemispherical connecting portion adapted to the rear end hemispherical body; The tail of the front coupling body, the front hemisphere, the head of the rear coupling body, and the upper axial direction of the rear hemisphere are coaxially provided with connecting through holes; The front end of the pull tube is connected to the connecting through hole of the front hemisphere through a locking nut; The rear end of the pull tube is connected to the connecting through hole of the rear end hemisphere through a locking nut; A spring is sleeved on the pull rod between the tail of the front coupling body and the head of the rear coupling body; A refueling gun is provided at the head of the front coupling body; The tail of the refueling gun is connected to the front end of the pull tube at the tail of the front coupling body through a hose; The tail of the pull tube is located in the sliding sleeve and is connected to the flexible high-pressure oil supply pipeline.

4. The spring-type flexible oil supply device according to claim 3, characterized in that: The spring outer shell is provided with a dustproof bellows.

5. The spring-type flexible oil supply device according to claim 3, characterized in that: A fixed bracket is provided at the tail of the sliding sleeve, and the free end of the driving cylinder is connected to the fixed bracket via a rotary joint.

6. The spring-type flexible oil supply device according to claim 5, characterized in that: The rotary joint is provided with an oil inlet and an oil outlet. The oil inlet is connected to a flexible high-pressure oil supply pipeline; the oil outlet is connected to the tail of the pull tube through the flexible high-pressure pipeline.

7. The spring-type flexible oil supply device according to claim 3, characterized in that: The rear end hemisphere and the inner spherical surface of the rear coupling body form a spherical pair; The front end hemisphere and the inner spherical surface of the front coupling body form a spherical pair.

8. The spring-type flexible oil supply device according to claim 3, characterized in that: The refueling gun head includes a refueling rod, a guide head, and a refueling nozzle; The refueling rod is installed on the front connecting cylinder of the flexible component; the refueling nozzle is fixed on the refueling rod by threaded connection, and the guide head wraps the refueling nozzle and is fixedly connected to the refueling rod.

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