Crane boom with built-in self-lubricating mechanism

Abstract

The utility model discloses a crane boom with a built-in self-lubricating mechanism, which belongs to the field of boom mechanisms and comprises a telescopic boom mounted on a crane body, and a self-lubricating machine component is arranged below the telescopic boom. The self-lubricating machine assembly comprises a supporting bottom frame fixedly connected to the side wall of the telescopic arm frame, the upper end of the supporting bottom frame is fixedly connected with an oil storage pump, the oil storage pump communicates with the telescopic arm frame, and the end, away from the telescopic arm frame, of the oil storage pump is fixedly connected with an oil supplementing opening device. The arc-shaped clamping ring is utilized to ensure that the butt joint degree between the liquid injection pipe opening and the one-way electromagnetic valve opening is accurate and then is isolated from outside air, a large amount of air is prevented from being injected into the oil storage pump along with opening of the one-way electromagnetic valve opening, the other switch structure drives the one-way electromagnetic valve opening to be opened, the possibility that air enters is reduced, and the service life of the oil storage pump is prolonged. And the working efficiency of the self-lubricating machine assembly is further guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of boom mechanisms, and more particularly to a crane boom with a built-in self-lubricating mechanism. Background Art

[0002] The crane boom is a crucial component of a crane, used to support and move heavy loads. It is a metal structure of defined length and strength, typically made of steel, and can be in various configurations, including straight, folding, or telescopic arms. A self-lubricating mechanism is a lubricating device integrated into the crane boom to mitigate friction and wear during boom movement.

[0003] When the oil pump is used as a self-lubricating mechanism in a crane boom, it is very important to prevent air from entering when replenishing the oil. This is because the air in the oil will chemically react with the oil when refueling with an oil gun. The oxidation reaction of the oil will be accelerated under high temperature and high pressure, reducing the working accuracy of the oil pump. Therefore, it is necessary to design a crane boom with a built-in self-lubricating mechanism with the function of preventing air from entering to solve the above problem. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] In response to the problems existing in the prior art, the purpose of the present utility model is to provide a crane boom with a built-in self-lubricating mechanism. In this solution, a liquid replenishing gun can be used to fit two switch structures, and an arc-shaped clamping ring is used to ensure the precise docking between the liquid injection pipe mouth and the one-way solenoid valve mouth, so that it is isolated from the outside air, thereby preventing a large amount of air from being injected into the oil storage pump following the opening of the one-way solenoid valve mouth. Another switch structure then drives the one-way solenoid valve mouth to open, reducing the possibility of air entering, thereby ensuring the working efficiency of the self-lubricating machine assembly.

[0006] 2. Technical solution

[0007] In order to solve the above problems, the present invention adopts the following technical solutions.

[0008] The oil pump is connected with the oil pumping station on the upper end of the oil pumping station, and the oil pump is connected with the oil pumping station on the lower end of the oil pumping station.

[0009] Furthermore, the inner side wall of the arc-shaped clamping ring is fixedly connected to a sealing inner ring, and the two arc-shaped clamping rings are respectively engaged at the outer sides of the liquid injection nozzle.

[0010] Furthermore, the two switch structures cooperate with the rehydration gun, and the two switch structures are respectively connected to the one-way solenoid valve port and the two electric push rods.

[0011] Furthermore, the switch structure includes an outer groove formed on the outer side wall of the oil filling port, and the inner side wall of the outer groove is fixedly connected to the inductive switch.

[0012] Furthermore, a pair of elastic members are fixedly connected to the inner side wall of the outer groove, and the two elastic members are respectively located on the upper and lower sides of the induction switch.

[0013] Furthermore, one end of the corresponding two elastic members away from the inductive switch is fixedly connected with a T-shaped push block, and the T-shaped push block cooperates with the inductive switch and the rehydration gun.

[0014] Furthermore, an extension rod is fixedly connected to one end of the support frame away from the oil storage pump, and a pair of semi-arc guide rings that cooperate with the fluid replenishing gun are fixedly connected to the upper end of the extension rod.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] (1) In this solution, the refill gun can be used to fit two switch structures. The two switch structures respectively enable the electric push rod to drive the arc clamp to clamp the outer side of the injection pipe mouth to limit it, so that the engagement degree between the injection pipe mouth and the one-way solenoid valve mouth is more accurate. The arc clamp is used to ensure the accuracy of the engagement between the injection pipe mouth and the one-way solenoid valve mouth, and then isolate it from the outside air, so as to prevent a large amount of air from being injected into the oil storage pump following the opening of the one-way solenoid valve mouth. The other switch structure then drives the one-way solenoid valve mouth to open, so that the oil in the injection pipe mouth can be smoothly injected into the one-way solenoid valve mouth, maintaining the stability of the oil flow, reducing the possibility of air entering, and thus ensuring the working efficiency of the self-lubricating machine components.

[0018] (2) The inductive switch in the switch structure is arranged on the inner side of the outer groove. The opening method is to use the refilling gun to fit the T-shaped push block to compress the elastic part. At this time, the T-shaped push block and the inductive switch contact each other to start the relevant mechanism. When the oil filling operation is completed, the refilling gun is released to allow the switch structure to rebound and separate from the inductive switch through the elastic part, thereby avoiding the inductive switch being exposed to the outside and affecting its service life.

[0019] (3) When the refilling gun and the oil storage pump are docked with each other, an extension rod can be set on the outside of the supporting frame. The two semi-arc guide rings above the extension rod can support the refilling gun, reducing the arm strength consumption of the staff, allowing the staff to more evenly and stably input the oil in the refilling gun into the oil storage pump, thereby improving the refilling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the axial side structure of the telescopic boom of the present invention;

[0021] Figure 2 For the utility model Figure 1 A schematic diagram of the enlarged structure of the self-lubricating mechanism;

[0022] Figure 3 This is a schematic side cross-sectional structural diagram of the self-lubricating mechanism of the present utility model;

[0023] Figure 4 For the utility model Figure 3 Schematic diagram of the enlarged structure of the middle switch structure.

[0024] Description of the numbers in the figure:

[0025] 1. Crane body; 2. Telescopic boom; 3. Self-lubricating machine assembly; 4. Support frame; 5. Oil storage pump; 6. Oil filling port; 7. One-way solenoid valve port; 8. Liquid filling gun; 9. Liquid injection nozzle; 10. Switch structure; 11. Inner groove; 12. Electric push rod; 13. Arc clamping ring; 14. Sealing inner ring; 15. Extension rod; 16. Semi-arc guide ring; 17. Outer groove; 18. Elastic part; 19. T-type push block; 20. Inductive switch. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication 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 the specific circumstances.

[0029] See also Figure 1-3A crane boom with a built-in self-lubricating mechanism includes a telescopic boom 2 mounted on a crane body 1, a self-lubricating machine assembly 3 is provided below the telescopic boom 2, and the self-lubricating machine assembly 3 includes a supporting base 4 fixedly connected to the side wall of the telescopic boom 2, an upper end of the supporting base 4 is fixedly connected to an oil storage pump 5, the oil storage pump 5 and the telescopic boom 2 are communicated with each other, and an end of the oil storage pump 5 away from the telescopic boom 2 is fixedly connected to an oil filling port 6, the oil filling port 6 is externally connected to a liquid filling gun 8, and the output end of the liquid filling gun 8 is fixedly connected to the oil filling port 6. A liquid injection pipe mouth 9 is fixedly connected, and the liquid injection pipe mouth 9 extends into the oil replenishing port 6. A one-way solenoid valve port 7 is fixedly connected to the inner wall of the oil replenishing port 6 close to the oil storage pump 5. The liquid injection pipe mouth 9 and the one-way solenoid valve port 7 are docked with each other. Inner grooves 11 are symmetrically provided at the upper and lower ends of the liquid injection pipe mouth 9. An electric push rod 12 is fixedly connected to the inner side wall of the inner groove 11. An arc-shaped clamping ring 13 is fixedly connected to the output end of the electric push rod 12. Switch structures 10 are provided on the upper and lower sides of the end of the oil replenishing port 6 away from the oil storage pump 5.

[0030] See also Figure 1-4 The inner wall of the arc-shaped clamping ring 13 is fixedly connected with a sealing inner ring 14. The two arc-shaped clamping rings 13 are respectively engaged in the outer position of the liquid filling nozzle 9. The two switch structures 10 cooperate with the liquid filling gun 8. The two switch structures 10 are respectively connected to the one-way solenoid valve port 7 and the two electric push rods 12. The switch structure 10 includes an outer groove 17 provided on the outer wall of the oil filling port 6. The inner wall of the outer groove 17 is fixedly connected with a sensing switch 20. The inner wall of the outer groove 17 is fixedly connected with a pair of elastic members 18, and the two elastic members 18 are respectively located on the upper and lower sides of the sensing switch 20. The corresponding two elastic members 18 are fixedly connected with a T-shaped push block 19 at one end away from the sensing switch 20. The T-shaped push block 19 cooperates with the sensing switch 20 and the liquid filling gun 8. The end of the support frame 4 away from the oil storage pump 5 is fixedly connected with an extension rod 15. The upper end of the extension rod 15 is fixedly connected with a pair of semi-arc guide rings 16 that cooperate with the liquid filling gun 8.

[0031] See also Figure 1-4After the oil filling operation is completed, the oil in the oil filling gun 8 is connected with the oil filling port 6 to replenish the oil in the oil storage pump 5. Before the injection nozzle 9 is extended to the oil filling port 6 for replenishing the oil, the oil filling gun 8 can be used to fit the two switch structures 10. The two switch structures 10 respectively make the electric push rod 12 drive the arc clamping ring 13 to clamp the outer side of the injection nozzle 9 for limiting the position, so that the engagement degree between the injection nozzle 9 and the one-way solenoid valve port 7 is more accurate, and the arc clamping ring 13 is used to ensure that the engagement degree between the injection nozzle 9 and the one-way solenoid valve port 7 is accurate, so that it is isolated from the outside air, thereby preventing a large amount of air from being injected into the oil storage pump 5 following the opening of the one-way solenoid valve port 7. The other switch structure 10 then drives the one-way solenoid valve port 7 to open, so that the oil in the injection nozzle 9 can be smoothly injected into the one-way solenoid valve port 7. In the valve port 7, the stability of oil flow is maintained, the possibility of air entering is reduced, and the working efficiency of the self-lubricating machine assembly 3 is guaranteed. The inductive switch 20 in the switch structure 10 is arranged at the inner position of the outer groove 17. The opening method is to use the liquid filling gun 8 to fit the T-shaped push block 19 to compress the elastic member 18. At this time, the T-shaped push block 19 and the inductive switch 20 contact each other to start the relevant mechanism. When the oil filling operation is completed, the liquid filling gun 8 is released to allow the switch structure 10 to rebound and separate from the inductive switch 20 through the elastic member 18, thereby avoiding exposure of the inductive switch 20 to the outside and affecting its service life. When the liquid filling gun 8 and the oil storage pump 5 are docked with each other, an extension rod 15 can be provided on the outside of the supporting base 4. The two semi-arc guide rings 16 above the extension rod 15 can support the liquid filling gun 8, reduce the arm strength consumption of the staff, and allow the staff to more evenly and stably input the oil in the liquid filling gun 8 into the oil storage pump 5, thereby improving the liquid filling efficiency.

[0032] The above are only preferred embodiments of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A crane boom with a built-in self-lubricating mechanism, comprising a telescopic boom (2) mounted on a crane body (1), characterized in that: A self-lubricating machine assembly (3) is provided below the telescopic boom (2), and the self-lubricating machine assembly (3) includes a supporting base (4) fixedly connected to the side wall of the telescopic boom (2), an upper end of the supporting base (4) is fixedly connected to an oil storage pump (5), the oil storage pump (5) and the telescopic boom (2) are in communication with each other, an end of the oil storage pump (5) away from the telescopic boom (2) is fixedly connected to an oil replenishing port (6), the oil replenishing port (6) is externally connected to a liquid replenishing gun (8), an output end of the liquid replenishing gun (8) is fixedly connected to a liquid injection nozzle (9), and the liquid injection nozzle (9) is fixedly connected to the output end of the liquid replenishing gun (8). ) extends into the oil replenishing port (6), the inner wall of the oil replenishing port (6) close to the oil storage pump (5) is fixedly connected to a one-way electromagnetic valve port (7), the injection pipe port (9) and the one-way electromagnetic valve port (7) are connected to each other, and the upper and lower ends of the injection pipe port (9) are symmetrically provided with inner grooves (11), the inner side wall of the inner groove (11) is fixedly connected to an electric push rod (12), and the output end of the electric push rod (12) is fixedly connected to an arc-shaped clamping ring (13), and the upper and lower sides of the end of the oil replenishing port (6) away from the oil storage pump (5) are provided with switch structures (10).

2. The crane boom with a built-in self-lubricating mechanism according to claim 1, characterized in that: The inner side wall of the arc-shaped clamping ring (13) is fixedly connected to a sealing inner ring (14), and the two arc-shaped clamping rings (13) are respectively clamped at the outer side of the liquid injection nozzle (9).

3. The crane boom with a built-in self-lubricating mechanism according to claim 1, characterized in that: The two switch structures (10) cooperate with the fluid infusion gun (8), and the two switch structures (10) are respectively connected to the one-way electromagnetic valve port (7) and the two electric push rods (12).

4. The crane boom with a built-in self-lubricating mechanism according to claim 1, characterized in that: The switch structure (10) comprises an outer groove (17) formed on the outer side wall of the oil replenishing port (6), and an inductive switch (20) is fixedly connected to the inner side wall of the outer groove (17).

5. The crane boom with a built-in self-lubricating mechanism according to claim 4, characterized in that: A pair of elastic members (18) are fixedly connected to the inner side wall of the outer groove (17), and the two elastic members (18) are respectively located on the upper and lower sides of the induction switch (20).

6. The crane boom with a built-in self-lubricating mechanism according to claim 5, characterized in that: One end of the corresponding two elastic members (18) away from the inductive switch (20) is fixedly connected to a T-shaped push block (19), and the T-shaped push block (19) cooperates with the inductive switch (20) and the rehydration gun (8).

7. The crane boom with a built-in self-lubricating mechanism according to claim 1, characterized in that: An extension rod (15) is fixedly connected to one end of the support base (4) away from the oil storage pump (5), and a pair of semi-arc guide rings (16) that cooperate with the fluid replenishing gun (8) are fixedly connected to the upper end of the extension rod (15).

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