CN215759258U

CN215759258U - Small excavator

Info

Publication number: CN215759258U
Application number: CN202121685856.9U
Authority: CN
Inventors: 姜朝相
Original assignee: Shandong Haituo Machinery Group Co ltd
Current assignee: Shandong Haituo Machinery Group Co ltd
Priority date: 2021-07-23
Filing date: 2021-07-23
Publication date: 2022-02-08
Anticipated expiration: 2031-07-23

Abstract

The utility model relates to the technical field of excavators, in particular to a small excavator, which comprises an underframe, a rotary table and a movable arm, wherein a walking wheel is arranged to enable a crawler to run more stably, thereby further improving the stability of the device, the device can move by using the walking motor for driving, thereby providing convenience for the construction and use of the equipment, protecting the walking motor by arranging the motor fixing frame, avoiding the damage of a power mechanism of the equipment in the advancing or construction process, thereby ensuring the walking safety of the equipment, reducing the possibility of failure, improving the use reliability of the equipment, the two walking motors are arranged for driving, so that strong power output is provided for the whole machine, the advancing speed of the equipment is higher, further, the small excavator can quickly catch up with the progress of the work, thereby contributing to improvement of the efficiency of the construction work.

Description

Small excavator

Technical Field

The utility model relates to the technical field of excavators, in particular to a small excavator.

Background

With the acceleration of the national urbanization process, the rural area which is not seen by manufacturers originally becomes a main station field of engineering construction and cannot be ignored gradually, and the small excavator integrates the characteristics of flexibility, multiple functions, wide application and the like, the market demand exceeds expectations, the emphasis of the urbanization policy is removed, and the labor cost is gradually increased in the national economic development process. The trend of replacing manpower with machines has become more and more obvious. The quick and efficient operation also enables more and more people to accept and use the engineering machinery for operation, the mini excavator is also called as a mini excavating machine, and the mini excavator is beneficial to the small body posture and mainly becomes ideal equipment for the earthwork engineering in urban areas.

However, the existing mini excavator has a very large problem in the using process, the existing mini excavator is complex in structure and small in size, cannot be used in a narrow construction area, can be constrained by a construction space, reduces the range of using functions, is not strong enough in driving, is slow in traveling speed influenced by power, reduces the efficiency of construction operation, and is not beneficial to manual operation of constructors.

SUMMERY OF THE UTILITY MODEL

The utility model provides a mini excavator aiming at the problems in the prior art.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a small excavator comprises an underframe, a rotary table and a movable arm, wherein a dozer blade is mounted at one end of the underframe, the rotary table is rotatably matched at the top of the underframe, the movable arm is mounted at one end of the rotary table, and the excavator is assembled by using the underframe, the dozer blade, the rotary table, the movable arm and other mechanisms, so that the equipment is simple in structure, the size of the excavator is light, the excavator can be suitable for a narrow construction area, and the excavator is not restricted by a construction space;

wherein, both sides of the bottom of the chassis are rotatably matched with walking wheels, both sides of one end of the chassis, which is far away from the dozer blade, are welded with motor fixing frames, one side of the motor fixing frame is provided with a walking motor, one end of the walking motor is provided with a driving wheel through a rotating shaft, both sides of the chassis are sleeved with crawler belts, the equipment can advance and work more stably by using the crawler belts, the adaptability of the mini-excavator is improved, the equipment can cope with severe working conditions by improving the adaptability of the equipment, the crawler belts are rotatably matched with the chassis through the walking wheels and the driving wheels, the walking wheels are arranged, the crawler belts advance more stably, the use stability of the equipment is further improved, the equipment can move by using the walking motor for driving, and the walking motor can be protected by arranging the motor fixing frames, the device is prevented from being damaged in the advancing or construction process, so that the walking safety of the device can be ensured, the possibility of failure is reduced, the two walking motors are arranged for driving, strong power output is provided for the whole device, the advancing speed of the device is higher, and the small excavator can quickly catch up with the progress of a project;

a turntable is rotatably matched between the turntable and the underframe, the turntable is fixedly connected with the turntable, the turntable is rotatably matched with the underframe, the turntable is rotatably matched at the bottom of the underframe through the turntable, a tooth groove is formed in the outer side wall of the turntable, a rotary motor is vertically installed at the top of the turntable, a gear is installed at the bottom end of the rotary motor through a rotating shaft, the gear is located below the turntable, and the gear is meshed with the turntable;

the movable arm is of a V-shaped structure, the bottom end of the movable arm is hinged to one end of the rotary table, a bucket arm is hinged to one end, away from the rotary table, of the movable arm, and a bucket is hinged to one end, away from the movable arm, of the bucket arm.

Preferably, the seat and the console are fixedly mounted on the rotary table, the seat and the console are arranged on the rotary table, the relative position of the seat and the console is fixed, manual operation of constructors is facilitated, labor intensity of the operators can be relieved, the shell is mounted on the periphery of the rotary table, and the seat is located above the shell.

Preferably, the one end welding that the dozer blade is close to the chassis has the mounting bracket, and the one end that the dozer blade was kept away from to the mounting bracket is articulated with the chassis, and the dozer blade passes through the mounting bracket to be installed in the one end of chassis, through installation dozer blade, increases the function of this equipment, and then improves the application range of this equipment.

Preferably, the one end that the chassis is close to the dozer blade articulates there is the fourth pneumatic cylinder, and the one end that the chassis was kept away from to the fourth pneumatic cylinder is equipped with the fourth hydraulic stem, and the one end that the fourth pneumatic cylinder was kept away from to the fourth hydraulic stem is articulated with the mounting bracket top, through using fourth pneumatic cylinder drive dozer blade, makes the height of dozer blade to change.

Preferably, the fixed welding in top of revolving stage has the bicycle shed frame, and the horizontal welding in top of bicycle shed frame has the bicycle shed roof, and the bicycle shed roof is located and controls platform and seat directly over, through setting up bicycle shed frame and bicycle shed roof, can play the effect of keeping out the rain sunshade, provides comparatively comfortable service environment for the user.

Preferably, the one end that the revolving stage is close to the swing arm articulates there is the third pneumatic cylinder, the one end that the revolving stage was kept away from to the third pneumatic cylinder is equipped with the third hydraulic stem, the one end that the third pneumatic cylinder was kept away from to the third hydraulic stem is articulated with the swing arm, and third pneumatic cylinder and third hydraulic stem all are located the inboard of swing arm, one side that the third pneumatic cylinder was kept away from to the swing arm articulates there is first pneumatic cylinder, the one end of first pneumatic cylinder is equipped with first hydraulic stem, the one end that first pneumatic cylinder was kept away from to first hydraulic stem is articulated with the arm of a dipper, one side of arm of a dipper articulates there is the second pneumatic cylinder, the one end that the second pneumatic cylinder was kept away from to the second hydraulic stem is articulated with the scraper bowl, through using first pneumatic cylinder, second pneumatic cylinder and third pneumatic cylinder drive, make this equipment can be nimble to the control of scraper bowl.

The utility model has the beneficial effects that:

(1) according to the mini excavator, the excavator is assembled by using the mechanisms such as the underframe, the dozer blade, the rotary table and the movable arm, so that the equipment is simple in structure, the excavator is light and handy in size, can be applied to a narrow construction area and is not limited by a construction space, the application range of the equipment is expanded, the equipment is more stable in advancing and working by using the crawler belt, the stable performance of the equipment in the engineering and agricultural fields is enhanced, the adaptability of the mini excavator is improved, the equipment can cope with severe working conditions by improving the adaptability of the equipment, and the service life of the equipment is prolonged.

(2) According to the small excavator, the travelling wheels are arranged, so that the travelling of the crawler is more stable, the use stability of the equipment is further improved, the equipment can move by being driven by the travelling motors, convenience is brought to construction and use of the equipment, the travelling motors can be protected by arranging the motor fixing frames, the power mechanism of the equipment is prevented from being damaged in the travelling process or the construction process, the travelling safety of the equipment can be ensured, the possibility of failure is reduced, the use reliability of the equipment is improved, strong power output is provided for the whole excavator by arranging the two travelling motors for driving, the travelling speed of the equipment is higher, the small excavator can quickly catch up with the progress of a project, and the construction operation efficiency is improved.

(3) According to the small excavator, the seat is mounted, convenience is brought to driving of a user, and therefore the using stability of the small excavator is improved.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the underframe structure of the utility model.

Fig. 3 is a schematic view of the assembly structure of the base frame and the turntable.

Fig. 4 is a schematic view of the boom structure of the present invention.

FIG. 5 is a schematic view of a rotary motor according to the present invention.

In the figure: 1. a chassis; 101. a traveling wheel; 102. a crawler belt; 103. a travel motor; 104. a drive wheel; 105. a motor fixing frame; 2. a housing; 3. a movable arm; 4. a first hydraulic cylinder; 5. a first hydraulic lever; 6. a bucket arm; 7. a second hydraulic cylinder; 8. a second hydraulic rod; 9. a bucket; 10. a dozer blade; 11. a seat; 12. a vehicle shed frame; 13. a roof panel of the carport; 14. a third hydraulic cylinder; 15. a third hydraulic lever; 16. a turntable; 17. a turntable; 18. a rotary motor; 19. a gear; 20. a console.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

As shown in fig. 1 to 5, the mini excavator according to the present invention includes an underframe 1, a turntable 16 and a boom 3, wherein a blade 10 is installed at one end of the underframe 1, the turntable 16 is rotatably fitted to the top of the underframe 1, and the boom 3 is installed at one end of the turntable 16, and the excavator is assembled by using the underframe 1, the blade 10, the turntable 16, the boom 3, and other mechanisms, so that the equipment has a simple structure, the excavator has a light volume, and can be applied to a narrow construction area without being restricted by a construction space, thereby widening the application range of the equipment;

wherein, both sides of the bottom of the chassis 1 are rotatably matched with walking wheels 101, both sides of the end of the chassis 1 far away from the dozer blade 10 are welded with motor fixing frames 105, one side of the motor fixing frame 105 is provided with a walking motor 103, one end of the walking motor 103 is provided with a driving wheel 104 through a rotating shaft, both sides of the chassis 1 are sleeved with crawler belts 102, the equipment advances and works more stably by using the crawler belts 102, thereby enhancing the stable performance of the equipment in the engineering and agricultural fields, improving the self adaptability of the mini-excavator, enabling the equipment to cope with the severe working conditions by improving the adaptability of the equipment, thereby improving the service life of the equipment, the crawler belts 102 are rotatably matched with the chassis 1 through the walking wheels 101 and the driving wheel 104, by arranging the walking wheels 101, the crawler belts 102 advance more stably, thereby further improving the use stability of the equipment, the equipment can move by being driven by the walking motor 103, so that convenience is provided for construction and use of the equipment, the walking motor 103 can be protected by arranging the motor fixing frame 105, the power mechanism of the equipment is prevented from being damaged in the process of walking or construction, so that the walking safety of the equipment can be ensured, the possibility of failure is reduced, the use reliability of the equipment is improved, the two walking motors 103 are arranged for driving, so that strong power output is provided for the whole machine, the walking speed of the equipment is higher, the progress of the engineering can be quickly pursued by the small excavator, and the construction operation efficiency is improved;

a turntable 17 is rotatably matched between the turntable 16 and the underframe 1, the turntable 17 is fixedly connected with the turntable 16, the turntable 17 is rotatably matched with the underframe 1, the turntable 16 is rotatably matched at the bottom of the underframe 1 through the turntable 17, a tooth groove is formed in the outer side wall of the turntable 17, a rotary motor 18 is vertically installed at the top of the turntable 16, a gear 19 is installed at the bottom end of the rotary motor 18 through a rotating shaft, the gear 19 is positioned below the turntable 16, and the gear 19 is meshed with the turntable 17;

the movable arm 3 is of a V-shaped structure, the bottom end of the movable arm 3 is hinged to one end of the rotary table 16, one end, away from the rotary table 16, of the movable arm 3 is hinged to the bucket arm 6, and one end, away from the movable arm 3, of the bucket arm 6 is hinged to the bucket 9.

The seat 11 and the console 20 are fixedly mounted on the turntable 16, the seat 11 and the console 20 are both arranged on the turntable 16, the relative positions of the seat 11 and the console 20 are fixed, the operation by hands of a constructor is facilitated, the labor intensity of the operator can be reduced, the shell 2 is mounted on the periphery of the turntable 16, and the seat 11 is located above the shell 2.

The one end welding that blade 10 is close to chassis 1 has the mounting bracket, and the one end that blade 10 was kept away from to the mounting bracket is articulated with chassis 1, and blade 10 passes through the mounting bracket to be installed in the one end of chassis 1, through installation blade 10, increases the function of this equipment, and then improves the application range of this equipment.

Chassis 1 is close to the one end of dozer blade 10 and articulates there is the fourth pneumatic cylinder, and the one end that chassis 1 was kept away from to the fourth pneumatic cylinder is equipped with the fourth hydraulic stem, and the one end that the fourth pneumatic cylinder was kept away from to the fourth hydraulic stem is articulated with the mounting bracket top, through using fourth pneumatic cylinder drive dozer blade 10, makes the high change of dozer blade 10, and then has improved the flexibility that this equipment used.

The fixed welding in top of revolving stage 16 has bicycle shed frame 12, and the horizontal welding in top of bicycle shed frame 12 has bicycle shed roof 13, and bicycle shed roof 13 is located and controls platform 20 and seat 11 directly over, through setting up bicycle shed frame 12 and bicycle shed roof 13, can play the effect of keeping out the rain sunshade, provides comparatively comfortable service environment for the user to improve the travelling comfort that this equipment used.

A third hydraulic cylinder 14 is hinged to one end, close to the movable arm 3, of the rotary table 16, a third hydraulic rod 15 is arranged at one end, far away from the rotary table 16, of the third hydraulic cylinder 14, one end, far away from the third hydraulic cylinder 14, of the third hydraulic rod 15 is hinged to the movable arm 3, the third hydraulic cylinder 14 and the third hydraulic rod 15 are both located on the inner side of the movable arm 3, a first hydraulic cylinder 4 is hinged to one side, far away from the third hydraulic cylinder 14, of the movable arm 3, a first hydraulic rod 5 is arranged at one end of the first hydraulic cylinder 4, one end, far away from the first hydraulic cylinder 4, of the first hydraulic rod 5 is hinged to the arm 6, one side of the arm 6 is hinged to a second hydraulic cylinder 7, one end of the second hydraulic cylinder 7 is provided with a second hydraulic rod 8, one end, far away from the second hydraulic cylinder 7, of the second hydraulic rod 8 is hinged to the bucket 9, and the first hydraulic cylinder 4, the second hydraulic cylinder 7 and the third hydraulic cylinder 14 are used for driving, so that the control of the bucket 9 can be flexible, thereby increasing the flexibility of use of the device.

When in use, firstly, a blade 10 is arranged at one end of an underframe 1, a rotary table 16 is rotatably matched at the top of the underframe 1, a movable arm 3 is arranged at one end of the rotary table 16, the bottom end of the movable arm 3 is hinged with one end of the rotary table 16, an arm 6 is hinged at one end of the movable arm 3 far away from the rotary table 16, a bucket 9 is hinged at one end of the arm 6 far away from the movable arm 3, the excavator is assembled by using the underframe 1, the blade 10, the rotary table 16, the movable arm 3 and other mechanisms, so that the equipment has simple structure, the size of the excavator is light, the excavator can be applied to a narrow construction area and is not limited by construction space, the application range of the equipment is expanded, the equipment can be more stably moved and operated by using a crawler 102, the stable performance of the equipment in the engineering and agricultural fields is enhanced, and the self adaptability of the small excavator is improved, the equipment can cope with severe working conditions by improving the adaptability of the equipment, thereby prolonging the service life of the equipment, then, walking wheels 101 are rotatably matched on two sides of the bottom of the chassis 1, motor fixing frames 105 are welded on two sides of one end of the chassis 1 far away from the dozer blade 10, a walking motor 103 is arranged on one side of the motor fixing frame 105, a driving wheel 104 is arranged at one end of the walking motor 103 through a rotating shaft, crawler belts 102 are sleeved on two sides of the chassis 1, the walking wheels 101 are arranged to make the crawler belts 102 advance more stably, thereby further improving the stability of the equipment in use, the equipment can move by being driven by the walking motor 103, thereby providing convenience for construction and use of the equipment, the walking motor 103 can be protected by arranging the motor fixing frame 105, and avoiding the power mechanism of the equipment from being damaged in the advancing or construction process, therefore, the safety of the equipment walking can be ensured, the possibility of failure occurrence is reduced, the use reliability of the equipment is improved, the two walking motors 103 are arranged for driving, strong power output is provided for the whole machine, the equipment advancing speed is higher, the mini excavator can quickly catch up with the progress of the engineering, the construction operation efficiency is improved, finally, the seat 11 and the control platform 20 are fixedly arranged on the rotary table 16, the shell 2 is arranged on the peripheral side of the rotary table 16, the shed frame 12 is fixedly welded on the top of the rotary table 16, the shed roof 13 is horizontally welded on the top of the shed frame 12, the shed roof 13 is positioned right above the control platform 20 and the seat 11, the seat 11 is arranged for providing convenience for driving of users, the use stability of the equipment is improved, and the seat 11 and the control platform 20 are both arranged on the rotary table 16, the seat 11 is fixed with the relative position who controls platform 20, makes things convenient for constructor to go up the manual operation, can alleviate operating personnel's intensity of labour, through setting up bicycle shed frame 12 and bicycle shed roof 13, can play the effect of keeping out the rain sunshade, provides comparatively comfortable service environment for the user to improve the travelling comfort that this equipment used, through installation dozer blade 10, increase the function of this equipment, and then improve the application range of this equipment.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which fall within the scope of the claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A mini excavator, comprising an underframe (1), a turntable (16) and a movable arm (3), characterized in that: a dozer blade (10) is installed at one end of the underframe (1), a rotary table (16) is rotatably matched at the top of the underframe (1), and a movable arm (3) is installed at one end of the rotary table (16);

the two sides of the bottom of the underframe (1) are both in running fit with walking wheels (101), motor fixing frames (105) are welded on the two sides of one end, away from the dozer blade (10), of the underframe (1), a walking motor (103) is installed on one side of each motor fixing frame (105), a driving wheel (104) is installed at one end of each walking motor (103) through a rotating shaft, crawler belts (102) are sleeved on the two sides of the underframe (1), and the crawler belts (102) are in running fit with the underframe (1) through the walking wheels (101) and the driving wheels (104);

a turntable (17) is rotatably matched between the turntable (16) and the bottom frame (1), the turntable (17) is fixedly connected with the turntable (16), the turntable (17) is rotatably matched with the bottom frame (1), the turntable (16) is rotatably matched with the bottom of the bottom frame (1) through the turntable (17), a tooth groove is formed in the outer side wall of the turntable (17), a rotary motor (18) is vertically installed at the top of the turntable (16), a gear (19) is installed at the bottom end of the rotary motor (18) through a rotating shaft, the gear (19) is located below the turntable (16), and the gear (19) is meshed with the turntable (17);

the movable arm (3) is of a V-shaped structure, the bottom end of the movable arm (3) is hinged to one end of the rotary table (16), a bucket arm (6) is hinged to one end, away from the rotary table (16), of the movable arm (3), and a bucket (9) is hinged to one end, away from the movable arm (3), of the bucket arm (6).

2. A miniexcavator according to claim 1 wherein: the seat (11) and the control platform (20) are fixedly arranged on the rotary table (16), the shell (2) is arranged on the peripheral side of the rotary table (16), and the seat (11) is positioned above the shell (2).

3. A miniexcavator according to claim 1 wherein: one end of the dozer blade (10) close to the bottom frame (1) is welded with a mounting frame, one end of the mounting frame far away from the dozer blade (10) is hinged with the bottom frame (1), and the dozer blade (10) is installed at one end of the bottom frame (1) through the mounting frame.

4. A miniexcavator according to claim 3 wherein: the one end that chassis (1) is close to dozer blade (10) articulates there is the fourth pneumatic cylinder, and the one end that chassis (1) were kept away from to the fourth pneumatic cylinder is equipped with the fourth hydraulic stem, and the one end that the fourth pneumatic cylinder was kept away from to the fourth hydraulic stem is articulated with the mounting bracket top.

5. A miniexcavator according to claim 1 wherein: the top of the rotary table (16) is fixedly welded with a shed frame (12), the top of the shed frame (12) is horizontally welded with a shed top plate (13), and the shed top plate (13) is positioned right above the control platform (20) and the seat (11).

6. A miniexcavator according to claim 1 wherein: a third hydraulic cylinder (14) is hinged to one end, close to the movable arm (3), of the rotary table (16), a third hydraulic rod (15) is arranged at one end, far away from the rotary table (16), of the third hydraulic cylinder (14), one end, far away from the third hydraulic cylinder (14), of the third hydraulic rod (15) is hinged to the movable arm (3), and third pneumatic cylinder (14) and third hydraulic stem (15) all are located the inboard of swing arm (3), one side that third pneumatic cylinder (14) was kept away from in swing arm (3) articulates there is first pneumatic cylinder (4), the one end of first pneumatic cylinder (4) is equipped with first hydraulic stem (5), the one end that first pneumatic cylinder (4) were kept away from in first hydraulic stem (5) is articulated with arm of a dipper (6), one side of arm of a dipper (6) articulates there is second pneumatic cylinder (7), the one end of second pneumatic cylinder (7) is equipped with second hydraulic stem (8), the one end that second pneumatic cylinder (7) were kept away from in second hydraulic stem (8) is articulated with scraper bowl (9).