Gravity balance energy-saving device for large arm of excavator

Abstract

The utility model belongs to the technical field of excavator large arms, and particularly relates to an excavator large arm gravity balance energy-saving device which comprises a fixing plate, an installation frame is fixedly installed on the top of the fixing plate, supporting plates are fixedly installed on the front side and the rear side of the top of the fixing plate, and first rotating shafts are rotatably installed on the inner sides of the supporting plates. By means of the arranged auxiliary assembly, when materials in the bucket are heavy, the device can drive the excavator large arm to move through the hydraulic cylinder, the first motor can be controlled to drive the driving shaft to rotate, the driving shaft can drive the second rotating shaft to rotate through the first synchronous belt, and the excavator large arm can be driven to move through the second synchronous belt. The second rotating shaft can drive the fixing shaft to rotate through the second synchronous belt, the fixing shaft can drive the first rotating shaft to rotate through the bevel gear, and therefore the first rotating shaft can drive the excavator large arm to move, and the excavator large arm is stable in the moving process.

Description

Technical Field

[0001] The utility model relates to the technical field of excavator arms, in particular to a gravity balancing energy-saving device for excavator arms. Background Art

[0002] The lifting and lowering of the large mechanical arm of the traditional excavator is powered by two oil cylinders with high-pressure hydraulic power to lift and lower the large mechanical arm of the excavator. There are small mechanical arms and buckets on the large mechanical arm, and the production process of shoveling and loading is realized by the extension and retraction of the hydraulic cylinder;

[0003] The announcement number CN 218148568 U discloses an excavator arm gravity balance energy-saving device, comprising a walking mechanism, a frame, a large mechanical arm, a small mechanical arm and a bucket, wherein the upper end of the walking mechanism is mounted with a frame, the upper surface of the frame is mounted with a large mechanical arm, one end of the large mechanical arm is connected with a small mechanical arm, and the lower end of the small mechanical arm is connected with a bucket;

[0004] When it is in use, when there is a lot of material inside the bucket, the bucket is heavy, and it is difficult for the device to provide auxiliary support for the mechanical arm, so that the device can only be operated by the hydraulic cylinder, which makes the hydraulic cylinder of the large mechanical arm prone to damage during long-term use; therefore, we proposed an excavator arm gravity balance energy-saving device. Utility Model Content

[0005] The utility model aims to provide an excavator arm gravity balance energy-saving device to solve the existing problems.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A gravity balancing and energy-saving device for an excavator boom, comprising a fixed plate, a mounting frame fixedly installed on the top of the fixed plate, support plates fixedly installed on the front and rear sides of the top of the fixed plate, a first rotating shaft rotatably installed on the inner side of the support plate, an excavator boom fixedly installed on the outer side of the first rotating shaft, a first motor fixedly installed on the inner side of the mounting frame, a drive shaft fixedly installed on the output end of the first motor, a second rotating shaft rotatably installed on the bottom inner wall of the mounting frame, and fixed shafts rotatably installed on the front and rear sides of the bottom inner wall of the mounting frame; an auxiliary component, the auxiliary component is installed on the mounting frame, the drive shaft, the second rotating shaft and the fixed shaft; a support component, the support component is installed on the mounting frame and the excavator boom.

[0008] As a further improvement of the above scheme, the auxiliary component includes a first synchronous belt, a second synchronous belt and a bevel gear. The first synchronous belt is tensioned on the outside of the driving shaft and the second rotating shaft, the second synchronous belt is tensioned on the outside of the second rotating shaft and the fixed shaft, and the bevel gear is fixedly installed on the outside of the first rotating shaft and the fixed shaft, and the adjacent bevel gears are meshed.

[0009] As a further improvement of the above scheme, the supporting assembly includes a fixed frame, a mounting shaft, a drum, a second motor, a wire take-up roller and a wire rope. The fixed frame is fixedly mounted on the top of the excavator boom, the mounting shaft is rotatably mounted on the front and rear sides of the inner side of the mounting frame, the drum is fixedly mounted on the outer side of the mounting shaft, the second motor is fixedly mounted on the rear inner wall of the mounting frame, the wire take-up roller is fixedly mounted on the output end of the second motor, one end of the wire rope is fixedly mounted on the outer side of the wire take-up roller, and the other end of the wire rope is fixedly mounted on the outer side of the fixed frame.

[0010] As a further improvement of the above solution, a cable fixing hole is opened on one side of the fixing frame, and the outer diameter of the steel wire rope is smaller than the inner diameter of the cable fixing hole.

[0011] As a further improvement of the above solution, a cable passing groove is opened on the right side of the installation frame, and the material of the roller is rubber.

[0012] As a further improvement of the above solution, grooves with the same width as the first synchronous belt and the second synchronous belt are opened on the outer sides of the driving shaft, the second rotating shaft and the fixed shaft, and the first synchronous belt and the second synchronous belt are tensioned and arranged on the inner sides of the grooves.

[0013] As a further improvement of the above solution, a rotation groove is opened on one side of the excavator arm, and the outer diameter of the first rotation shaft is the same as the inner diameter of the rotation groove.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) The utility model is an excavator arm gravity balancing energy-saving device. Through the auxiliary components, when the material inside the bucket is heavy, the device can drive the excavator arm to move through the hydraulic cylinder, and can control the first motor to drive the driving shaft to rotate, so that the driving shaft can drive the second rotating shaft to rotate through the first synchronous belt, so that the second rotating shaft can drive the fixed shaft to rotate through the second synchronous belt, so that the fixed shaft can drive the first rotating shaft to rotate through the bevel gear, so that the first rotating shaft can drive the excavator arm to move, so that the excavator arm is more stable during the movement;

[0016] (2) The utility model is an excavator boom gravity balancing energy-saving device. Through the support assembly, when the excavator boom is moving, the second motor can be controlled to drive the take-up roller to rotate, so that the wire rope can be taken up or released, so that the other end of the excavator boom can be supported by the wire rope, so that the excavator boom is not easily damaged during movement, and a dog roller protects the wire rope to prevent the wire rope from being worn. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a three-dimensional structural schematic diagram of an excavator arm gravity balance energy-saving device proposed by the utility model;

[0019] Figure 2 It is a partial three-dimensional structural schematic diagram of an excavator arm gravity balance energy-saving device proposed by the utility model;

[0020] Figure 3 for Figure 2 Schematic diagram of the structure of part A in FIG.

[0021] Figure 4 The utility model is a partial three-dimensional structural schematic diagram of an excavator arm gravity balance energy-saving device.

[0022] In the figure: 1. fixed plate; 2. mounting frame; 3. support plate; 4. first rotating shaft; 5. excavator arm; 6. first motor; 7. drive shaft; 8. second rotating shaft; 9. fixed shaft; 10. first synchronous belt; 11. second synchronous belt; 12. bevel gear; 13. fixed frame; 14. mounting shaft; 15. drum; 16. second motor; 17. take-up roller; 18. wire rope. DETAILED DESCRIPTION

[0023] 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 of 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.

[0024] refer to Figure 1-4A gravity balancing energy-saving device for an excavator arm comprises a fixed plate 1, a mounting frame 2 is fixedly installed on the top of the fixed plate 1, a support plate 3 is fixedly installed on the front and rear sides of the top of the fixed plate 1, a first rotating shaft 4 is rotatably installed on the inner side of the support plate 3, an excavator arm 5 is fixedly installed on the outer side of the first rotating shaft 4, a first motor 6 is fixedly installed on the inner side of the mounting frame 2, a driving shaft 7 is fixedly installed on the output end of the first motor 6, a second rotating shaft 8 is rotatably installed on the bottom inner wall of the mounting frame 2, and a fixed shaft 9 is rotatably installed on the front and rear sides of the bottom inner wall of the mounting frame 2; an auxiliary component, the auxiliary component is installed on the mounting frame 2, the driving shaft 7, the second rotating shaft 8 and the fixed shaft 9; a supporting component, the supporting component is installed on the mounting frame 2 and the excavator arm 5; the auxiliary components include a first synchronous belt 10, a second synchronous belt 11 and a bevel gear 12, the first synchronous belt 10 is tensioned on the outside of the driving shaft 7 and the second rotating shaft 8, the second synchronous belt 11 is tensioned on the outside of the second rotating shaft 8 and the fixed shaft 9, the bevel gear 12 is fixedly installed on the outside of the first rotating shaft 4 and the fixed shaft 9, and the adjacent bevel gears 12 are meshed, so that the single first motor 6 can drive the fixed shaft 9 to rotate through the cooperation of multiple first synchronous belts 10 and second synchronous belts 11, so that the fixed shaft 9 drives the first rotating shaft 4 to rotate through the bevel gear 12, so that the first rotating shaft 4 can be assisted by the bevel gear 12 during the rotation process, so that the first rotating shaft 4 is more stable when rotating.

[0025] The supporting assembly includes a fixing frame 13, a mounting shaft 14, a drum 15, a second motor 16, a take-up roller 17 and a wire rope 18. The fixing frame 13 is fixedly mounted on the top of the excavator boom 5, the mounting shaft 14 is rotatably mounted on the front and rear sides of the inner side of the mounting frame 2, the drum 15 is fixedly mounted on the outer side of the mounting shaft 14, the second motor 16 is fixedly mounted on the inner wall of the rear side of the mounting frame 2, the take-up roller 17 is fixedly mounted on the output end of the second motor 16, one end of the wire rope 18 is fixedly mounted on the outer side of the take-up roller 17, and the other end of the wire rope 18 is fixedly mounted on the outer side of the fixing frame 13; a cable fixing hole is opened on one side of the fixing frame 13, and the outer diameter of the wire rope 18 is smaller than the inner diameter of the cable fixing hole, so that the wire rope 18 can pass through the cable fixing hole above the fixing frame 13, so that the wire rope 18 can be fixed on the inner side of the fixing frame 13, so that the fixing and disassembly of the wire rope 18 is more convenient and quick.

[0026] A cable passing groove is provided on the right side of the mounting frame 2, and the material of the drum 15 is rubber, so that the drum 15 can protect the wire rope 18, so that the wire rope 18 is not easily damaged during multiple winding and releasing processes; grooves with the same width as the first synchronous belt 10 and the second synchronous belt 11 are provided on the outer sides of the driving shaft 7, the second rotating shaft 8 and the fixed shaft 9, and the first synchronous belt 10 and the second synchronous belt 11 are tensioned on the inner side of the groove, so that the first synchronous belt 10 and the second synchronous belt 11 are not easily detached from the inside of the groove during rotation, and the driving effect of the first synchronous belt 10 and the second synchronous belt 11 is better; a rotating groove is provided on one side of the excavator boom 5, and the outer diameter of the first rotating shaft 4 is the same as the inner diameter of the rotating groove, so that the first rotating shaft 4 and the excavator boom 5 are more tightly connected, so that the first rotating shaft 4 is more stable in the process of driving the excavator boom 5 to rotate.

[0027] The implementation principle of one embodiment of the present application is as follows: when the material inside the bucket is heavy, the device can drive the excavator arm 5 to move through the hydraulic cylinder, and can control the first motor 6 to drive the driving shaft 7 to rotate, so that the driving shaft 7 can drive the second rotating shaft 8 to rotate through the first synchronous belt 10, so that the second rotating shaft 8 can drive the fixed shaft 9 to rotate through the second synchronous belt 11, so that the fixed shaft 9 can drive the first rotating shaft 4 to rotate through the bevel gear 12, so that the first rotating shaft 4 can drive the excavator arm 5 to move, so that the excavator arm 5 is more stable during the movement; during the movement of the excavator arm 5, the second motor 16 can be controlled to drive the wire roller 17 to rotate, so that the wire rope 18 can be wound or released, so that the other end of the excavator arm 5 can be supported by the wire rope 18, so that the excavator arm 5 is not easily damaged during the movement, and a dog roller 15 protects the wire rope 18, so that the wire rope 18 is not easily worn.

[0028] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0029] The above is a detailed introduction to the excavator arm gravity balancing energy-saving device provided by the utility model. This article uses specific embodiments to explain the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. An excavator arm gravity balance energy-saving device, characterized in that: include: A fixed plate (1), a mounting frame (2) is fixedly mounted on the top of the fixed plate (1), a support plate (3) is fixedly mounted on the front and rear sides of the top of the fixed plate (1), a first rotating shaft (4) is rotatably mounted on the inner side of the support plate (3), an excavator boom (5) is fixedly mounted on the outer side of the first rotating shaft (4), a first motor (6) is fixedly mounted on the inner side of the mounting frame (2), a driving shaft (7) is fixedly mounted on the output end of the first motor (6), a second rotating shaft (8) is rotatably mounted on the inner wall of the bottom of the mounting frame (2), and a fixed shaft (9) is rotatably mounted on the front and rear sides of the inner wall of the bottom of the mounting frame (2); An auxiliary component, the auxiliary component being mounted on the mounting frame (2), the drive shaft (7), the second rotating shaft (8) and the fixed shaft (9); A support assembly is mounted on a mounting frame (2) and an excavator boom (5).

2. The excavator arm gravity balance energy-saving device according to claim 1, characterized in that: The auxiliary component comprises a first synchronous belt (10), a second synchronous belt (11) and a bevel gear (12); the first synchronous belt (10) is tensioned and arranged on the outside of the driving shaft (7) and the second rotating shaft (8); the second synchronous belt (11) is tensioned and arranged on the outside of the second rotating shaft (8) and the fixed shaft (9); the bevel gear (12) is fixedly mounted on the outside of the first rotating shaft (4) and the fixed shaft (9); adjacent bevel gears (12) are meshed with each other.

3. The excavator arm gravity balance energy-saving device according to claim 1, characterized in that: The support assembly comprises a fixed frame (13), a mounting shaft (14), a roller (15), a second motor (16), a wire take-up roller (17) and a wire rope (18); the fixed frame (13) is fixedly mounted on the top of the excavator boom (5); the mounting shaft (14) is rotatably mounted on the front and rear sides of the inner side of the mounting frame (2); the roller (15) is fixedly mounted on the outer side of the mounting shaft (14); the second motor (16) is fixedly mounted on the rear inner wall of the mounting frame (2); the wire take-up roller (17) is fixedly mounted on the output end of the second motor (16); one end of the wire rope (18) is fixedly mounted on the outer side of the wire take-up roller (17); and the other end of the wire rope (18) is fixedly mounted on the outer side of the fixed frame (13).

4. The excavator arm gravity balance energy-saving device according to claim 3, characterized in that: A cable fixing hole is provided on one side of the fixing frame (13), and the outer diameter of the steel wire rope (18) is smaller than the inner diameter of the cable fixing hole.

5. The excavator arm gravity balance energy-saving device according to claim 3, characterized in that: A cable passage slot is provided on the right side of the installation frame (2), and the roller (15) is made of rubber.

6. The excavator arm gravity balance energy-saving device according to claim 2, characterized in that: Grooves with the same width as the first synchronous belt (10) and the second synchronous belt (11) are provided on the outer sides of the driving shaft (7), the second rotating shaft (8) and the fixed shaft (9); the first synchronous belt (10) and the second synchronous belt (11) are tensioned and arranged on the inner sides of the grooves.

7. The excavator arm gravity balance energy-saving device according to claim 1, characterized in that: A rotation groove is provided on one side of the excavator arm (5), and the outer diameter of the first rotation shaft (4) is the same as the inner diameter of the rotation groove.

Images