Small excavator lifting mechanism

Abstract

The utility model relates to the field of excavators, and discloses a small excavator lifting mechanism which comprises a mounting plate, a bottom plate is arranged on the upper surface of the mounting plate, a first supporting rod is fixedly connected to the upper surface of the bottom plate, a protection assembly is arranged on the top of the first supporting rod, and a second supporting rod is fixedly connected to the upper surface of the bottom plate. A motor is installed at the top of the second supporting rod, an output shaft of the motor is fixedly connected with a rotating shaft, a winding drum is fixedly connected to the outer wall of the rotating shaft, a steel cable is installed on the outer wall of the winding drum, a fixing block is slidably connected to the inner wall of the mounting plate, and the fixing block is elastically connected with the mounting plate through a first spring. According to the utility model, through the arrangement of the extrusion block, when the fixed sliding block is fixed, the limiting can be relieved only by pushing the fixed block, and meanwhile, the parts for fixing are hidden in the mounting plate and the bottom plate, so that the influence on the gravel splashed in the working environment is reduced, and the use effect of the device is further improved.

Description

Technical Field

[0001] The utility model relates to the field of excavators, in particular to a lifting mechanism for a small excavator. Background Art

[0002] During the excavation process, the excavator needs to use a lifting mechanism to increase the power of the excavator and increase the lifting effect of the excavator. The lifting mechanism can effectively increase the stability and reliability of the excavator and prevent the bucket from falling off or being damaged due to excessive force during the excavation process.

[0003] The lifting mechanism is composed of steel cables, chains, drums, guide devices, transmission and operating devices, etc. It is a mechanism used to drive the drum and control the operation of the bucket.

[0004] In the prior art, small excavators have good flexibility and adaptability due to their small size. The excavation power of excavators equipped with lifting mechanisms is improved. However, the lifting mechanism will increase the weight of the small excavator if used improperly. The installed lifting mechanism will also increase the maintenance cost. It is more troublesome to disassemble and install when maintenance is required. At the same time, since the lifting mechanism is heavy, it needs to be fixed one by one with bolts during installation. The installation operation is too cumbersome, which further reduces the use effect of the device. Therefore, a small excavator lifting mechanism is proposed to solve the above problems. Utility Model Content

[0005] In order to remedy the above deficiencies, the present invention provides a small excavator lifting mechanism, which aims to improve the problem in the prior art that "the lifting mechanism is troublesome to disassemble and install when not in use, and the operation is too cumbersome".

[0006] The top of described supporting ram is fixedly provided with a toothed connecting strip, and the lower surface of described toothed connecting strip is fixedly provided with toothed connecting strip, and the lower surface of described toothed connecting strip is fixedly provided with toothed connecting strip.

[0007] As a further description of the above technical solution:

[0008] The protective component includes a sleeve, the interior of the sleeve is slidably connected to a slide rod, the inner wall of the slide rod is slidably connected to a limit block, the limit block and the slide rod are elastically connected by a spring, and the top end of the slide rod is fixedly connected to a baffle.

[0009] As a further description of the above technical solution:

[0010] The sleeve is fixedly connected to the top of the support rod 1, and the sleeve is rotatably connected to the outer wall of the rotating shaft. One end of the spring 2 is fixedly connected to the left end of the limit block, and the other end of the spring 2 is fixedly connected to the inner wall of the sliding rod.

[0011] As a further description of the above technical solution:

[0012] The shape of the fixing block is set to be a right triangle, the front part of the extrusion block is set to be inclined to fit the fixing block, and the shape of the clamping block is set to be L-shaped.

[0013] As a further description of the above technical solution:

[0014] A shovel strip is fixedly connected to the rear surface of the mounting plate, a through hole is opened on the rear surface of the bottom plate, and a blocking cover is installed on the inner wall of the through hole.

[0015] As a further description of the above technical solution:

[0016] The fixed sliding block slides on the inner wall of the sliding groove, one end of the spring 1 is fixedly connected to the lower surface of the fixed block, and the other end of the spring 1 is fixedly connected to the inner wall of the mounting plate.

[0017] As a further description of the above technical solution:

[0018] The baffle is configured to be in an arc shape.

[0019] As a further description of the above technical solution:

[0020] The mounting plate and the bottom plate are both provided with matching protrusions and grooves.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the present invention, by providing an extrusion block, when the fixed slider is fixed, the limit can be released by simply pushing the fixed block, which facilitates the disassembly of the lifting mechanism. At the same time, the inclined surface of the fixed block can be directly fixed during installation without the need for other redundant operations, further improving the use effect of the device.

[0023] 2. In the present invention, by setting up a protective component, when facing rainwater and sand and gravel that will reduce the service life of the steel cable, the baffle can prevent rainwater and sand and gravel from entering the gap of the wound steel cable. The blocking baffle can be adjusted by pressing the limit block, which reduces the frequency of maintenance and further improves the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the three-dimensional structure of the overall device in the utility model;

[0025] Figure 2 This is a schematic cross-sectional view of the three-dimensional structure of the protective component in the present invention;

[0026] Figure 3 This is a schematic cross-sectional view of the three-dimensional structure of the mounting plate and the base plate in the present invention;

[0027] Figure 4 This is a schematic diagram of the three-dimensional structure of the mounting plate in the present utility model;

[0028] Figure 5 This is a top view of the three-dimensional structure of the midsole plate of the present invention.

[0029] Legend:

[0030] 1. Mounting plate; 2. Bottom plate; 3. Support rod 1; 4. Support rod 2; 5. Motor; 6. Reel; 7. Steel cable; 8. Through hole; 9. Protective assembly; 91. Slide rod; 92. Spring 2; 93. Limit block; 94. Bushing; 95. Baffle; 10. Rotating shaft; 11. Fixed block; 12. Spring 1; 13. Extrusion block; 14. Connecting rod; 15. Block; 16. Sealing cover; 17. Slide groove; 18. Shovel bar; 19. Fixed slider. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figure 1-3, the utility model provides an embodiment: a small excavator lifting mechanism, including a mounting plate 1 for mounting other components, the upper surface of the mounting plate 1 is provided with a base plate 2 for mounting and supporting other components, the upper surface of the base plate 2 is fixedly connected with a support rod 3 for supporting a drum 6, the top of the support rod 3 is provided with a protective component 9 for protecting a steel cable 7, the upper surface of the base plate 2 is fixedly connected with a support rod 2 4 for supporting a motor 5, the top of the support rod 2 4 is provided with a motor 5, the motor 5 is an existing structure, and can be implemented by technicians in this field. Since it is an existing technology, it will not be described in detail in this case. The output shaft of the motor 5 is fixedly connected with a rotating shaft 10 for driving the drum 6 to rotate, and the outer wall of the rotating shaft 10 is fixedly connected to a useful A drum 6 for installing and winding up the steel cable 7 is installed on the outer wall of the drum 6 with a steel cable 7 for connecting to the excavator bucket during lifting. The inner wall of the mounting plate 1 is slidably connected with a fixed block 11 for fixing the base plate 2. The fixed block 11 is elastically connected to the mounting plate 1 by a spring 12. The spring 12 provides elastic force for the fixed block 11. The inner wall of the mounting plate 1 is slidably connected with an extrusion block 13 for squeezing the fixed block 11. The rear surface of the extrusion block 13 is fixedly connected with a connecting rod 14 for pushing the extrusion block 13. The rear surface of the connecting rod 14 is fixedly connected with a card block 15 for fixing the pushing distance of the connecting rod 14. The upper surface of the mounting plate 1 is provided with a slide groove 17 for sliding the fixed slider 19. The lower surface of the base plate 2 is fixedly connected with a fixed slider 19 for installing the base plate 2.

[0033] Reference Figure 1 、 Figure 2 The protective assembly 9 includes a sleeve 94 for installing other components. The interior of the sleeve 94 is slidably connected to a slide rod 91 for installing a baffle 95. The inner wall of the slide rod 91 is slidably connected to a limit block 93 for fixing the slide rod 91. The limit block 93 is elastically connected to the slide rod 91 through a spring 2 92. The spring 2 92 provides elastic force for the limit block 93. The top of the slide rod 91 is fixedly connected to a baffle 95 for providing shielding and protection for the steel cable 7. The sleeve 94 is fixedly connected to the top of the support rod 3 for installing the rotating shaft 10. The sleeve 94 is rotatably connected to the outer wall of the rotating shaft 10 to provide support for the rotating shaft 10 and other connected components. One end of the spring 2 92 is fixedly connected to the left end of the limit block 93, and the limit block 93 can be pressed to reset. The other end of the spring 2 92 is fixedly connected to the inner wall of the slide rod 91. The shape of the baffle 95 is set to be arc-shaped, which can block the reel 6.

[0034] Reference Figure 3 、 Figure 4 、 Figure 5The shape of the clamping block 15 is set to be L-shaped, and the clamping block 15 is set to be L-shaped, so that the clamping block 13 is reset when the bottom plate 2 is separated from the mounting plate 1. The rear surface of the mounting plate 1 is fixedly connected with a shovel strip 18, which is convenient for the connection and installation of the mounting plate 1 and the bottom plate 2. The rear surface of the mounting plate 1 is provided with a through hole 8 for pushing the squeezing block 13. The inner wall of the through hole 8 is provided with a blocking cover 16 for blocking the through hole 8 to prevent debris from entering. The fixing slider 19 slides on the inner wall of the slide groove 17 and is fixed by the fixing block 11. One end of the spring 12 is fixedly connected to the lower surface of the fixing block 11, and the spring causes the fixing block 11 to fix the bottom plate 2. The other end of the spring 12 is fixedly connected to the inner wall of the mounting plate 1. The mounting plate 1 and the bottom plate 2 are both provided with matching protrusions and grooves to prevent the device from being separated due to shaking.

[0035] Working principle: When the device needs to be disassembled, the staff first takes off the blocking cover 16, and uses a round rod to push the connecting rod 14 inside the through hole 8. When the connecting rod 14 pushes, the extrusion block 13 moves. When the extrusion block 13 moves, it pushes the fixed block 11 through the inclined surface of the front end. The fixed block 11 is pushed downward by the extrusion block 13, releasing the fixation of the fixed block 11 on the bottom plate 2. The bottom plate 2 slides away from the mounting plate 1 and is disassembled. After disassembly, the connecting rod 14 and the extrusion block 13 are reset through the block 15 fixed on the rear surface of the connecting rod 14. At this time, the fixing The fixed block 11 releases the limit of the extrusion block 13 and is lifted up again by the spring 12. When installation is required, the slide groove 17 and the fixed slider 19 can be aligned and pushed forward. The shape of the fixed block 11 allows the fixed slider 19 to slide in and be fixed. At the same time, when the steel cable 7 needs to be blocked, the limit block 93 can be pressed to release the fixation of the limit block 93 on the slide rod 91 through the shaft sleeve 94, and the slide rod 91 can be pushed to block the baffle 95 above the steel cable 7. This can prevent flying gravel from entering the wound steel cable 7, damaging the steel cable 7, and affecting the stability of the bucket lifting.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A small excavator lifting mechanism, comprising a mounting plate (1), characterized in that: The upper surface of the mounting plate (1) is provided with a bottom plate (2), the upper surface of the bottom plate (2) is fixedly connected with a support rod (3), the top of the support rod (3) is provided with a protective component (9), the upper surface of the bottom plate (2) is fixedly connected with a support rod (4), the top of the support rod (4) is provided with a motor (5), the output shaft of the motor (5) is fixedly connected with a rotating shaft (10), the outer wall of the rotating shaft (10) is fixedly connected with a reel (6), and the outer wall of the reel (6) is provided with a steel cable (7) The inner wall of the mounting plate (1) is slidably connected to a fixed block (11), the fixed block (11) and the mounting plate (1) are elastically connected via a spring (12), the inner wall of the mounting plate (1) is slidably connected to an extrusion block (13), the rear surface of the extrusion block (13) is fixedly connected to a connecting rod (14), the rear surface of the connecting rod (14) is fixedly connected to a clamping block (15), the upper surface of the mounting plate (1) is provided with a sliding groove (17), and the lower surface of the base plate (2) is fixedly connected to a fixed slider (19).

2. A small excavator lifting mechanism according to claim 1, characterized in that: The protective assembly (9) includes a shaft sleeve (94), the interior of the shaft sleeve (94) is slidably connected to a slide rod (91), the inner wall of the slide rod (91) is slidably connected to a limit block (93), the limit block (93) is elastically connected to the slide rod (91) via a second spring (92), and the top end of the slide rod (91) is fixedly connected to a baffle (95).

3. A small excavator lifting mechanism according to claim 2, characterized in that: The shaft sleeve (94) is fixedly connected to the top of the support rod (3), and the shaft sleeve (94) is rotatably connected to the outer wall of the rotating shaft (10). One end of the spring (92) is fixedly connected to the left end of the limit block (93), and the other end of the spring (92) is fixedly connected to the inner wall of the slide rod (91).

4. The small excavator lifting mechanism according to claim 1, characterized in that: The shape of the fixing block (11) is set to be a right triangle, the front part of the extrusion block (13) is set to be inclined to fit the fixing block (11), and the shape of the clamping block (15) is set to be L-shaped.

5. The small excavator lifting mechanism according to claim 1, characterized in that: A shovel strip (18) is fixedly connected to the rear surface of the mounting plate (1), a through hole (8) is opened on the rear surface of the base plate (2), and a blocking cover (16) is installed on the inner wall of the through hole (8).

6. The small excavator lifting mechanism according to claim 1, characterized in that: The fixed slider (19) slides on the inner wall of the slide groove (17), one end of the spring (12) is fixedly connected to the lower surface of the fixed block (11), and the other end of the spring (12) is fixedly connected to the inner wall of the mounting plate (1).

7. A small excavator lifting mechanism according to claim 2, characterized in that: The baffle (95) is configured to be arc-shaped.

8. The small excavator lifting mechanism according to claim 1, characterized in that: The mounting plate (1) and the bottom plate (2) are both provided with matching protrusions and grooves.

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