Rotary safety protection structure of excavator

Abstract

The utility model discloses an excavator rotation safety protection structure which comprises a supporting seat and a supporting column, a protection mechanism used for rotation protection is arranged on the outer side of the supporting column, a rotating rotation mechanism is further arranged inside and outside the supporting seat, and a connecting plate in the protection mechanism is fixedly installed on the outer side of the supporting seat. A supporting plate is fixedly mounted at the top of the connecting plate, and an oil storage barrel is fixedly mounted at the top of the supporting plate; according to the utility model, through the arrangement of the protection mechanism, the engaged part of the teeth can be lubricated and protected in a manner of adding lubricating oil and removing the lubricating oil, so that the protectiveness in the rotating or rotating process is improved, the teeth are prevented from being damaged and blocked, the rotating smoothness is improved, and the service life is prolonged. And through cooperation of the oil storage barrel, the liquid inlet pipe and the liquid discharging pipe, pressurization, lubricating oil adding and discharging work are facilitated, and then the effects of smoothing the lubricating oil and conducting auxiliary cleaning on the tops of the teeth are achieved through the material smearing assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering construction machinery, in particular to a swing safety protection structure for an excavator. Background Technique

[0002] As a common excavation and construction equipment, crawler excavators are widely used. It mainly consists of an upper body and a lower body, which are connected by a slewing bearing. The slewing bearing is fixed on the slewing bearing fixing seat, making the slewing bearing fixing seat a key component of the excavator. When the excavator is working, its load changes with the working load, and this change is transferred to the lower body through the slewing bearing. Therefore, the slewing bearing fixing seat not only has to bear the weight of the upper body and the gravity and torque generated by the working components, but also resist the impact reaction force generated during the operation. The design strength and quality of the slewing bearing fixing seat are directly related to the overall performance and service life of the excavator.

[0003] In view of the above technical problems, for example, the utility model patent with the publication number of CN216616033U discloses a slewing bearing fixing seat with a spinning structure for a small excavator. The existing slewing bearing fixing seats of small crawler excavators are made by welding steel plates or by forging. When using steel plates to weld the slewing bearing fixing seat, the number of welding steel plates is large, the process is complex, the dimensional error after welding is large, and there are large welding stresses and many welding defects, resulting in poor quality of the slewing bearing fixing seat and serious safety hazards. The slewing bearing fixing seat made by forging has a large weight, a large machining allowance, and many machining parts, and the manufacturing cost is relatively high, which cannot meet the requirements of cost reduction and efficiency improvement.

[0004] The above patent also has the following deficiencies: during the rotation and slewing of the excavator, the connection is carried out by means of tooth engagement. During continuous rotation or slewing, the teeth will be damaged and jam due to the use environment and long-term use, resulting in an unsmooth meshing process. Content of the Utility Model

[0005] The purpose of the utility model is to provide a swing safety protection structure for an excavator, which has the advantages of realizing safety protection during meshing rotation and rotation processes. The meshing connection is lubricated and protected by spraying lubricating grease, and then the lubrication effect is improved by smoothing, so as to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a swing safety protection structure for an excavator, including a support seat and a support column. A protection mechanism for swing protection is arranged on the outer side of the support column. A rotating swing mechanism is also arranged inside and outside the support seat. The connecting plate in the protection mechanism is fixedly installed on the outer side of the support seat.

[0007] A support plate is fixedly installed at the top of the connecting plate, an oil storage barrel is fixedly installed at the top of the support plate, a liquid inlet pipe is communicated with the top end of the oil storage barrel, a liquid discharge pipe is communicated with the bottom end of the oil storage barrel, and a material spreading and leveling component for cleaning and leveling is arranged at one end of the support plate.

[0008] Preferably, the material spreading component includes an adaptation module and an installation module. The adaptation module is arranged at one end of the support seat, and an installation module is arranged at one end of the adaptation module.

[0009] Preferably, the mounting plate in the adaptation module is fixedly installed at one end of the support seat. A slot is formed at one end of the mounting plate, and a perforation is formed on the outer side of the mounting plate.

[0010] Preferably, the plug block in the installation module is inserted into the slot. A scraping plate is fixedly installed on one side of the plug block, and a bolt is arranged in a penetrating manner on the outer side of the plug block.

[0011] Preferably, a first control valve is installed on the outer side of the liquid inlet pipe, and a second control valve is installed on the outer side of the liquid discharge pipe.

[0012] Preferably, the slewing mechanism includes a support component and a power component. The support component is arranged on the outer side of the support seat, and the power component is arranged inside the support component.

[0013] Preferably, the support frame in the support component is fixedly installed at the bottom inside and outside the support seat, and a gear ring is fixedly installed at the top of the inner side wall of the support seat;

[0014] The power component includes a gear and a reduction motor. The gear meshes inside the gear ring, the output shaft of the reduction motor is key-connected with a gear, and a top support frame is rotatably connected to the outer side of the support seat.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] Through the setting of the protection mechanism, the present utility model can lubricate and protect the tooth meshing part by adding lubricating oil and spreading and scraping, so as to improve the protection during rotation or slewing, avoid damage and jamming between teeth, and improve the smoothness of the slewing type. The cooperation of the oil storage barrel, the liquid inlet pipe and the liquid discharge pipe facilitates pressurization, adding lubricating oil and discharging work, and then the material spreading component realizes the effect of spreading the lubricating oil and assisting in cleaning the top of the teeth.

[0017] Other features and advantages of the present utility model will be described in the subsequent description, and in part, will be obvious from the description, or understood by implementing the present utility model. The objectives and other advantages of the present utility model can be achieved and obtained through the structure pointed out in the description and the drawings. Brief Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of the present utility model;

[0019] Figure 2 It is a schematic structural diagram of the pillar of the present utility model;

[0020] Figure 3 It is a schematic structural diagram of the gear of the present utility model;

[0021] Figure 4 It is a schematic structural diagram of the drain pipe of the present utility model;

[0022] Figure 5 It is a schematic structural diagram of the perforation of the present utility model.

[0023] In the figure: 1, support base; 2, protection mechanism; 21, connecting plate; 22, support plate; 23, oil storage barrel; 24, liquid inlet pipe; 25, drain pipe; 26, material spreading assembly; 261, mounting plate; 262, slot; 263, perforation; 264, plug; 265, scraper; 266, bolt; 3, slewing mechanism; 31, support frame; 32, gear ring; 33, gear; 34, reduction motor; 4, pillar; 5, top support frame. Detailed Description of the Preferred Embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] The present utility model provides a rotary safety protection structure for an excavator, including a support base 1 and a pillar 4. A protection mechanism 2 for rotary protection is arranged outside the pillar 4, and a rotating slewing mechanism 3 is also arranged inside and outside the support base 1. The connecting plate 21 in the protection mechanism 2 is fixedly installed outside the support base 1;

[0026] The top of the connecting plate 21 is fixedly installed with a support plate 22. The top of the support plate 22 is fixedly installed with an oil storage barrel 23. The top end of the oil storage barrel 23 is communicated with a liquid inlet pipe 24, and the bottom end of the oil storage barrel 23 is communicated with a drain pipe 25. One end of the support plate 22 is provided with a material spreading assembly 26 for cleaning and leveling.

[0027] It realizes the effect of supercharging after adding lubricating oil, can temporarily store a preset amount of lubricating oil for application when needed, and can also perform leveling and scraping operations.

[0028] Preferably, the applicator assembly 26 includes an adaptation module and an installation module. The adaptation module is arranged at one end of the support base 1, and an installation module is arranged at one end of the adaptation module.

[0029] As Figure 5 shown, the mounting plate 261 in the adaptation module is fixedly installed at one end of the support base 1. A slot 262 is opened at one end of the mounting plate 261, and a through hole 263 is opened on the outside of the mounting plate 261, which is beneficial for auxiliary support and connection work.

[0030] As Figure 5 shown, the plug 264 in the installation module is inserted into the inside of the slot 262. A scraper 265 is fixedly installed on one side of the plug 264. A bolt 266 is arranged in a penetrating manner on the outside of the plug 264, which can realize the insertion connection work and can realize the locking operation after connection.

[0031] As Figure 4 shown, a first control valve is installed on the outside of the liquid inlet pipe 24, and a second control valve is installed on the outside of the liquid discharge pipe 25. There are two groups of first control valves, which are beneficial for controlling the oil inlet switch and the control at the increasing part. The setting of the second control valve is beneficial for controlling the liquid discharge amount and the opening and closing functions. The first control valve and the second control valve adopt solenoid valves.

[0032] During operation:

[0033] Connect the liquid inlet pipe 24 through an external pipe. At this time, the corresponding first control valve will be directly opened, while the first control valve at the supercharging part is in the closed state. When the preset amount is added, stop adding, and then close the first control valve. At this time, it is necessary to open the first control valve at the supercharging part, and then open the second control valve to cause the lubricating oil to be discharged through the liquid discharge pipe 25 by means of supercharging, and evenly add it to the tooth part during the rotation process, and then make it evenly located between several groups of teeth during the meshing rotation process to achieve uniform lubrication application;

[0034] During the lubrication application process, some residual materials will be located on the top surface, and then they will be scraped by the scraper 265, so as to improve the utilization rate of the material, reduce the waste of lubricating oil, and improve the lubricity and protection effect;

[0035] As shown in the figure is the installation state;

[0036] When disassembling, loosen the bolt 266, and then directly pull up the scraper 265 to replace the new scraper 265. When installing, just operate in the reverse way of the above disassembly.

[0037] Furthermore, the slewing mechanism 3 includes a support assembly and a power assembly. The support assembly is disposed outside the support base 1, and the power assembly is disposed inside the support assembly.

[0038] As Figure 3 shown, the support frame 31 in the support assembly is fixedly installed at the bottom inside and outside the support base 1. A gear ring 32 is fixedly installed at the top of the inner wall of the support base 1. The support frame 31 realizes the auxiliary support and installation work, and the gear ring 32 facilitates rotation after being driven.

[0039] The power assembly includes a gear 33 and a reduction motor 34. The gear 33 meshes with the inner side of the gear ring 32. The output shaft of the reduction motor 34 is key-connected to the gear 33. A top support frame 5 is rotatably connected to the outside of the support base 1.

[0040] The reduction motor 34 realizes the function of power output. The gear 33 facilitates the transmission operation of the rotational force, enabling rotation between the base of the excavator and the upper operating position to achieve the slewing effect.

[0041] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An excavator rotation safety protection structure, characterized in that: It comprises a support seat (1) and a support column (4), wherein a protection mechanism (2) for rotation protection is arranged on the outer side of the support column (4), and a rotating mechanism (3) for rotation is also arranged inside and outside the support seat (1), and a connecting plate (21) in the protection mechanism (2) is fixedly mounted on the outer side of the support seat (1); A support plate (22) is fixedly mounted on the top of the connecting plate (21), an oil storage barrel (23) is fixedly mounted on the top of the support plate (22), the top end of the oil storage barrel (23) is connected to a liquid inlet pipe (24), the bottom end of the oil storage barrel (23) is connected to a liquid discharge pipe (25), and a smear assembly (26) for cleaning and smoothing is provided at one end of the support plate (22).

2. The excavator rotation safety protection structure according to claim 1 is characterized in that: The smear assembly (26) comprises an adapting module and a mounting module. The adapting module is arranged at one end of the support seat (1), and the mounting module is arranged at one end of the adapting module.

3. The excavator rotation safety protection structure according to claim 2 is characterized in that: The mounting plate (261) in the adapting module is fixedly mounted on one end of the supporting seat (1); a slot (262) is provided at one end of the mounting plate (261); and a through hole (263) is provided on the outer side of the mounting plate (261).

4. The excavator rotation safety protection structure according to claim 3 is characterized in that: The insert block (264) in the installation module is inserted into the interior of the slot (262), a scraper (265) is fixedly mounted on one side of the insert block (264), and a bolt (266) is provided through the outer side of the insert block (264).

5. The excavator rotation safety protection structure according to claim 1, characterized in that: A first control valve is installed on the outer side of the liquid inlet pipe (24), and a second control valve is installed on the outer side of the liquid discharge pipe (25).

6. The excavator rotation safety protection structure according to claim 1, characterized in that: The slewing mechanism (3) comprises a support assembly and a power assembly, wherein the support assembly is arranged outside the support seat (1), and the power assembly is arranged inside the support assembly.

7. The excavator rotation safety protection structure according to claim 6, characterized in that: The support frame (31) in the support assembly is fixedly mounted on the bottom of the inner side and the outer side of the support seat (1), and a gear ring (32) is fixedly mounted on the top of the inner side wall of the support seat (1); The power assembly comprises a gear (33) and a reduction motor (34), wherein the gear (33) is meshed with the inner side of the gear ring (32), the output shaft of the reduction motor (34) is key-connected with the gear (33), and the outer side of the support seat (1) is rotatably connected with a top support frame (5).

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