Protective speed reducer of tower crane

Abstract

The utility model discloses a tower crane protection type speed reducer which comprises a speed reducer body, the speed reducer body is installed on a crane body, and a fixing plate is fixedly installed on the lower side of the front end of the crane body. The elastic piece is fixedly installed on the outer side of the upper end of the speed reducer body, a first protection plate is connected to the outer side of the elastic piece, an installation structure is connected to the middle side of the rear end of the speed reducer body, a lubricating oil tank is installed on the upper side of the front end of the speed reducer body, an oil inlet pipe is connected to the upper side of the lubricating oil tank, and an oil outlet pipe is connected to the middle side of the lower end of the lubricating oil tank; and the connecting block is fixedly installed on the outer side of the middle of the speed reducer body, a spring is arranged in the connecting block, a moving rod is connected to the outer side of the spring, and a second protection plate is fixedly connected to the outer side of the moving rod. According to the protection type speed reducer of the tower crane, the speed reducer can be conveniently protected and fixed, and the interior of the speed reducer can be conveniently lubricated.

Description

Technical Field

[0001] The utility model relates to the technical field of tower crane reducers, in particular to a protective reducer for a tower crane. Background Art

[0002] A reducer is an independent component consisting of a gear drive, a worm drive, or a gear-worm drive enclosed in a rigid housing. A tower crane is a rotating crane with a boom mounted on the top of a tall tower. A reducer is required during the use of a tower crane. A protective structure is required during the use of a tower crane reducer to improve the use effect of the tower crane reducer, such as:

[0003] Chinese patent authorization announcement number CN208153679U discloses a crane reducer with a built-in protection device, which belongs to the field of crane equipment. The key points of its technical solution are: it includes a reducer box, a cooling box and a fan. The cooling box is tightly fitted on the right side of the reducer box, and the fan is fixedly installed on the cooling box. An ascending limit position limiter is arranged inside the reducer box, and the ascending limit position limiter is fixedly connected to the reducer box. An air cooler is arranged on the left side of the fan, and the air cooler is tightly fitted on the fan. An isolation plate is arranged inside the air cooler, and the isolation plate is connected to the air cooler through. The isolation plate can effectively increase the contact area between water and the air cooler, so as to achieve more sufficient heat dissipation and better heat dissipation efficiency of the reducer. The ascending limit position limiter is fixedly connected to the reducer box. When the crane rises to a certain limit, the lifting power is automatically cut off. It has good self-protection function and long service life.

[0004] The above-mentioned prior art solutions have the following defects: the reducer is protected by a rain cover, the fixing effect of the ordinary reducer is not good, and the lubrication inside the reducer is not convenient enough. Therefore, the utility model provides a tower crane protective reducer to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide a protective reducer for a tower crane to solve the problems proposed in the above background technology that the reducer is protected by a rain cover, the fixing effect of the ordinary reducer is not good, and the lubrication inside the reducer is not convenient enough.

[0006] To achieve the above object, the utility model provides the following technical solutions: a tower crane protective reducer, comprising a reducer body, the reducer body is mounted on a crane body, a fixing plate is fixedly mounted on the lower front end of the crane body, and the fixing plate is closely connected to the reducer body, and a reduction gear set is connected inside the reducer body;

[0007] Also includes:

[0008] A spring piece, which is fixedly mounted on the outer side of the upper end of the speed reducer body, and the outer side of the spring piece is connected to a first protective plate, the middle side of the rear end of the speed reducer body is connected to a mounting structure, and a lubricating oil tank is mounted on the upper side of the front end of the speed reducer body, the upper side of the lubricating oil tank is connected to an oil inlet pipe, and the middle side of the lower end of the lubricating oil tank is connected to an oil outlet pipe, the inner front side of the lubricating oil tank is connected to a mounting rod, and the outer side of the rear end of the mounting rod is connected to a movable plate;

[0009] The connecting block is fixedly installed on the outer side of the middle part of the reducer body, and a spring is arranged inside the connecting block, the outer side of the spring is connected to a moving rod, and the outer side of the moving rod is fixedly connected to a second protective plate, and a damper is arranged on the inner side of the second protective plate.

[0010] Preferably, the mounting structure comprises a fixing block, which is fixedly mounted on the outer side of the rear end of the reduction gear body, and a limiting rod is connected to the middle of the fixing block.

[0011] Preferably, the fixing block is connected to the lifting body in a snap-fitting manner, and the fixing block is symmetrically distributed about the center line of the reduction gear body.

[0012] Preferably, the fixing block is connected to the limiting rod by means of threads, and the vertical cross-section of the fixing block is an "L"-shaped structure.

[0013] Preferably, the first protective plate and the spring sheet are connected in a snap-fitting manner, and the vertical cross-section of the spring sheet is an arc-shaped structure.

[0014] Preferably, the moving rod is connected to the spring in a sliding manner, and the moving rod is evenly distributed on the inner side of the second protective plate.

[0015] Preferably, the mounting rod is connected to the lubricating oil tank in a rotational manner, and the mounting rod is connected to the movable plate in a threaded manner.

[0016] Preferably, the movable plate is connected to the oil outlet pipe in a sliding manner and serves to block the lubricating oil.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the protective reducer for tower crane is convenient for protecting the reducer, convenient for fixing the reducer, and convenient for lubricating the inside of the reducer;

[0018] 1. The first protective plate is limited by the spring plate at the upper end of the reducer body, so as to protect the upper side of the reducer body. Then the second protective plate is slid inward, so that the second protective plate drives the moving rod to slide inward, so that the moving rod drives the spring to be compressed inside the connecting block, and then the second protective plate drives the damper to be compressed, so as to protect the reducer body;

[0019] 2. Place the crane body on the upper end of the fixed plate, and then push the reducer body backwards, so that the reducer body drives the fixed block to engage with the middle side of the crane body, and rotate the limit rod to make the limit rod threadedly connected to the middle side of the fixed block, so that the limit rod is threadedly connected inside the crane body, which is convenient for fixing the reducer body;

[0020] 3. By rotating the mounting rod, the mounting rod is rotated on the lower side of the lubricating oil tank, so that the movable plate threadedly connected to the mounting rod slides forward, and then the movable plate is separated on the upper side of the oil outlet pipe, so that the lubricating oil inside the lubricating oil tank enters the interior of the reducer body through the oil outlet pipe, which is convenient for lubricating the interior of the reducer body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall cross-sectional structure of the connection between the crane body and the fixed plate of the utility model;

[0022] Figure 2 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0023] Figure 3 For this utility model Figure 1 The enlarged structural diagram at B in the middle;

[0024] Figure 4 This is a schematic diagram of the overall cross-sectional structure of the connection between the reducer body and the fixing plate of the utility model;

[0025] Figure 5 For this utility model Figure 4 The enlarged structural diagram at C in the middle;

[0026] Figure 6 It is a schematic diagram of the overall cross-sectional structure of the connection between the fixed block and the crane body of the utility model.

[0027] In the figure: 1. Crane body; 2. Fixed plate; 3. Reducer body; 4. Reducer gear set; 5. Fixed block; 6. First protective plate; 7. Second protective plate; 8. Connecting block; 9. Spring; 10. Moving rod; 11. Damper; 12. Shrapnel; 13. Lubricating oil tank; 14. Oil inlet pipe; 15. Oil outlet pipe; 16. Mounting rod; 17. Moving plate; 18. Limit rod. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-6 The utility model provides a technical solution: a protective reducer for a tower crane, comprising a reducer body 3, the reducer body 3 is mounted on a crane body 1, and a fixing plate 2 is fixedly mounted on the lower front end of the crane body 1, and the fixing plate 2 is closely connected to the reducer body 3, a reduction gear set 4 is connected inside the reducer body 3, a spring sheet 12 is fixedly mounted on the outer side of the upper end of the reducer body 3, and a first protective plate 6 is connected to the outer side of the spring sheet 12, a mounting structure is connected to the middle side of the rear end of the reducer body 3, and a lubricating oil tank 13 is installed on the upper side of the front end of the reducer body 3, an oil inlet pipe 14 is connected to the upper side of the lubricating oil tank 13, and an oil outlet pipe 15 is connected to the middle side of the lower end of the lubricating oil tank 13, and the lubricating oil tank The front side of the interior of the mounting rod 16 is connected to a mounting rod 16, and the rear end of the mounting rod 16 is connected to a movable plate 17. The crane body 1 is placed on the upper end of the fixed plate 2, and then the reducer body 3 is pushed backward, so that the reducer body 3 drives the mounting structure to be connected to the middle side of the crane body 1, which is convenient for fixing the reducer body 3. The mounting rod 16 is rotated to rotate the mounting rod 16 on the lower side of the lubricating oil tank 13, so that the movable plate 17 connected to the mounting rod 16 slides forward, and then the movable plate 17 is separated on the upper side of the oil outlet pipe 15, so that the lubricating oil inside the lubricating oil tank 13 enters the interior of the reducer body 3 through the oil outlet pipe 15, which is convenient for lubricating the interior of the reducer body 3.

[0030] The connecting block 8 is fixedly installed on the outer side of the middle part of the reducer body 3, and a spring 9 is arranged inside the connecting block 8. The outer side of the spring 9 is connected to a moving rod 10, and the outer side of the moving rod 10 is fixedly connected to a second protective plate 7, and a damper 11 is arranged on the inner side of the second protective plate 7. The first protective plate 6 is limited by the spring plate 12 at the upper end of the reducer body 3, so as to protect the upper side of the reducer body 3, and then the second protective plate 7 is slid inwardly, so that the second protective plate 7 drives the moving rod 10 to slide inwardly, so that the moving rod 10 drives the spring 9 to be compressed inside the connecting block 8, and then the second protective plate 7 drives the damper 11 to be compressed, so as to protect the reducer body 3.

[0031] When using the tower crane protective reducer, the specific Figure 1 and Figure 6In the embodiment, the crane body 1 is placed on the upper end of the fixing plate 2, the fixing block 5 is connected to the crane body 1 by means of a snap fit, and the fixing block 5 is symmetrically distributed about the center line of the reduction gear body 3, and then the reduction gear body 3 is pushed backward, so that the reduction gear body 3 drives the fixing block 5 to be snap-fitted and connected at the middle side of the crane body 1, the fixing block 5 is connected to the limiting rod 18 by means of a thread, and the vertical cross-section of the fixing block 5 is an "L"-shaped structure, the limiting rod 18 is rotated, so that the limiting rod 18 is threadedly connected at the middle side of the fixing block 5, so that the limiting rod 18 is threadedly connected inside the crane body 1, which is convenient for fixing the reduction gear body 3;

[0032] Specific as Figure 1 , Figure 2 and Figure 3 In the embodiment, since the first protective plate 6 and the spring sheet 12 are connected by a snap-fitting manner, and the vertical cross-section of the spring sheet 12 is an arc-shaped structure, the first protective plate 6 is limited by the spring sheet 12 at the upper end of the reducer body 3, so as to protect the upper side of the reducer body 3 conveniently, the moving rod 10 and the spring 9 are connected by a sliding manner, and the moving rod 10 is evenly distributed on the inner side of the second protective plate 7, and then the second protective plate 7 is slid inwardly, so that the second protective plate 7 drives the moving rod 10 to slide inwardly, so that the moving rod 10 drives the spring 9 to be compressed inside the connecting block 8, and then the second protective plate 7 drives the damper 11 to be compressed, so as to protect the reducer body 3 conveniently;

[0033] Specific as Figure 1 , Figure 4 and Figure 5 In the process, the mounting rod 16 is rotated, the mounting rod 16 is connected to the lubricating oil tank 13 in a rotating manner, and the mounting rod 16 is connected to the movable plate 17 in a threaded manner, so that the mounting rod 16 is rotated on the lower side of the inner part of the lubricating oil tank 13, so that the movable plate 17 threadedly connected to the mounting rod 16 slides forward, and the movable plate 17 is connected to the oil outlet pipe 15 in a sliding manner and blocks the lubricating oil, and then the movable plate 17 is separated on the upper side of the oil outlet pipe 15, so that the lubricating oil inside the lubricating oil tank 13 enters the interior of the reducer body 3 through the oil outlet pipe 15, so as to facilitate the lubrication of the interior of the reducer body 3.

[0034] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A protective reducer for a tower crane, comprising a reducer body (3), the reducer body (3) being mounted on a crane body (1), a fixing plate (2) being fixedly mounted on the lower front end of the crane body (1), the fixing plate (2) being closely connected to the reducer body (3), and a reduction gear set (4) being connected inside the reducer body (3); It is characterized in that Also includes: A spring piece (12) is fixedly mounted on the outer side of the upper end of the speed reducer body (3), and the outer side of the spring piece (12) is connected to a first protective plate (6); the middle side of the rear end of the speed reducer body (3) is connected to a mounting structure, and a lubricating oil tank (13) is mounted on the upper side of the front end of the speed reducer body (3); the upper side of the lubricating oil tank (13) is connected to an oil inlet pipe (14), and the middle side of the lower end of the lubricating oil tank (13) is connected to an oil outlet pipe (15); the inner front side of the lubricating oil tank (13) is connected to a mounting rod (16), and the outer side of the rear end of the mounting rod (16) is connected to a movable plate (17); A connecting block (8) is fixedly mounted on the outer side of the middle part of the speed reducer body (3), and a spring (9) is arranged inside the connecting block (8), a moving rod (10) is connected to the outer side of the spring (9), and a second protective plate (7) is fixedly connected to the outer side of the moving rod (10), and a damper (11) is arranged on the inner side of the second protective plate (7).

2. A tower crane protective reducer according to claim 1, characterized in that: The mounting structure comprises a fixing block (5), the fixing block (5) being fixedly mounted on the rear end outside of the reduction gear body (3), and the middle part of the fixing block (5) being connected to a limiting rod (18).

3. A tower crane protective reducer according to claim 2, characterized in that: The fixing block (5) is connected to the crane body (1) in a snap-fitting manner, and the fixing block (5) is symmetrically distributed about the center line of the speed reducer body (3).

4. A tower crane protective reducer according to claim 3, characterized in that: The fixing block (5) and the limiting rod (18) are connected by means of threads, and the vertical cross-section of the fixing block (5) is an "L"-shaped structure.

5. The tower crane protective reducer according to claim 1, characterized in that: The first protective plate (6) and the spring sheet (12) are connected in a snap-fitting manner, and the vertical cross-section of the spring sheet (12) is an arc-shaped structure.

6. The protective reducer for tower crane according to claim 1, characterized in that: The moving rod (10) and the spring (9) are connected in a sliding manner, and the moving rod (10) is evenly distributed on the inner side of the second protective plate (7).

7. The protective reducer for a tower crane according to claim 1, characterized in that: The mounting rod (16) and the lubricating oil tank (13) are connected in a rotational manner, and the mounting rod (16) and the movable plate (17) are connected in a threaded manner.

8. The tower crane protective reducer according to claim 1, characterized in that: The movable plate (17) is connected to the oil outlet pipe (15) in a sliding manner and has a blocking effect on the lubricating oil.

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