A new energy small wheel excavator with noise reduction

Abstract

The utility model provides a new energy small -size wheel excavator of making an uproar falls, including lower frame and install on the upper frame of lower frame, be provided with power containing cavity on the upper frame, be provided with the noise reduction subassembly in power containing cavity, be provided with motor in the noise reduction subassembly. The utility model discloses above -mentioned structure, when motor is in the driving process, because the outside setting of motor has the noise reduction subassembly, therefore, through the cooperation of the front noise reduction spare, side edge noise reduction spare, top noise reduction spare and rear noise reduction spare of noise reduction subassembly, and by the setting of the noise reduction structure that the front noise reduction spare, side edge noise reduction spare, top noise reduction spare and rear noise reduction spare adopt, the noise of motor produces can pass second sound absorption layer, sound absorption board and first sound absorption layer of noise reduction structure in proper order, thereby can play multiple noise reduction effect, avoids the long -term work of operator in high noise environment, guarantees the health of operator.

Description

Technical Field

[0001] This utility model relates to the field of new energy small wheeled excavators, and in particular to a noise-reducing new energy small wheeled excavator. Background Technology

[0002] New energy small wheeled excavators are electric-powered excavators with wheels. They primarily excavate soil, coal, silt, and pre-loosened soil and rock. In recent years, the development of construction machinery has been relatively rapid, and excavators have become one of the most important types of construction machinery.

[0003] The drive motors of existing new energy small wheeled excavators are generally located next to the operator's cab. During the motor drive process, the rotation of the motor will inevitably cause mechanical noise, especially during the drive process that requires greater power, which makes the motor noise even louder. This can easily cause operators to work in a high-noise environment for a long time, affecting their health. Utility Model Content

[0004] This utility model discloses a noise-reducing new energy small wheeled excavator, which mainly solves the problem of unavoidable noise caused by the drive motor of the new energy small wheeled excavator.

[0005] To achieve the aforementioned objective, the technical solution of this utility model is implemented as follows:

[0006] This utility model provides a noise-reducing new energy small wheeled excavator, including a lower frame and an upper frame mounted on the lower frame. The upper frame is provided with a power receiving cavity, a noise reduction component is provided in the power receiving cavity, and an electric motor is provided in the noise reduction component.

[0007] The noise reduction assembly includes a base slidably connected to the lower surface of the power receiving cavity. Mounting brackets are respectively provided at the four corners of the base. A front noise reduction component is rotatably connected to the front side of the mounting bracket. Side noise reduction components, top noise reduction components, and rear noise reduction components are detachably installed on the left, right, top, and rear sides of the mounting bracket, respectively.

[0008] The front noise reduction component, side noise reduction component, top noise reduction component, and rear noise reduction component all adopt a noise reduction structure. The noise reduction structure includes a panel, a first sound-absorbing layer, and a second sound-absorbing layer arranged sequentially in the direction facing the motor. The first sound-absorbing layer and the second sound-absorbing layer are spaced apart by a sound-absorbing frame. A sound-absorbing cavity is formed between the first sound-absorbing layer, the second sound-absorbing layer, and the sound-absorbing frame. A sound-absorbing plate is arranged in the sound-absorbing cavity. The cross-section of the sound-absorbing plate is a hollow mesh structure.

[0009] In one embodiment, the front noise reduction component is rotatably connected to the mounting frame via a rotating component. The rotating component includes a rotating guide rod and a flexible threaded sleeve disposed on the mounting frame. The front noise reduction component has a rotating hole through the rotating guide rod at a position corresponding to the rotating guide rod. The rotating guide rod passes through the rotating hole, and the flexible threaded sleeve is threadedly connected to the rotating guide rod.

[0010] In one embodiment, a limit block is installed at the end of the rotary guide rod, and a convex force-bearing ring is provided at one end of the flexible threaded sleeve.

[0011] In one embodiment, the output end of the motor faces the rear noise reduction component, and the rear noise reduction component has a clearance hole through the output end of the motor.

[0012] In one embodiment, the mounting bracket is provided with receiving grooves corresponding to the positions of the front noise reduction component and the rear noise reduction component, the mounting bracket is provided with a recessed mounting groove corresponding to the position of the side noise reduction component, the mounting bracket is provided with a mounting plate corresponding to the position of the top noise reduction component, and there is a gap between the mounting plate and the top of the mounting bracket to accommodate the top noise reduction component.

[0013] In one embodiment, the base is slidably connected to the lower surface of the power receiving cavity via a guide rail assembly, the guide rail assembly including a slider mounted on the base and a slide rail mounted on the lower surface of the power receiving cavity, the slider being slidably connected to the slide rail.

[0014] In one embodiment, the base is provided with support rollers.

[0015] The advantages or beneficial effects of the above technical solution include at least the following: When the motor is driven, since a noise reduction component is installed outside the motor, the noise generated by the motor will pass through the second sound-absorbing layer, the sound-absorbing plate, and the first sound-absorbing layer of the noise reduction structure in sequence. The second sound-absorbing layer absorbs a portion of the noise first, and the hollow mesh structure of the sound-absorbing plate provides sound insulation. Finally, the first sound-absorbing layer absorbs the remaining noise, thus achieving multiple noise reduction effects and preventing operators from working in a high-noise environment for a long time, thereby ensuring the health of the operators. Attached Figure Description

[0016] The accompanying drawings illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the principles of the present invention. These drawings are included to provide a further understanding of the present invention and are incorporated in and constitute a part of this specification.

[0017] Figure 1A schematic diagram of the entire embodiment according to the present invention is shown;

[0018] Figure 2 A schematic diagram of a noise reduction component, a rotating component, a guide rail assembly, and a support roller according to an exemplary embodiment of the present invention is shown.

[0019] Figure 3 An exemplary embodiment of the present invention is shown. Figure 2 A schematic diagram of the decomposition process;

[0020] Figure 4 A schematic diagram of a noise reduction structure according to an exemplary embodiment of the present invention is shown;

[0021] Figure 5 A schematic diagram of a mounting bracket according to an exemplary embodiment of the present invention is shown;

[0022] Figure 6 A schematic diagram of a flexible threaded sleeve according to an exemplary embodiment of the present invention is shown.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Remove the chassis;

[0025] 2. Mount the frame;

[0026] 21. Power-receiving cavity;

[0027] 3. Noise reduction components;

[0028] 31. Base; 32. Mounting bracket; 321. Receiving groove; 322. Mounting groove; 323. Mounting plate; 33. Front noise reduction component; 331. Rotating hole; 34. Side noise reduction component; 35. Top noise reduction component; 36. Rear noise reduction component; 361. Clearance hole; 37. Noise reduction structure; 371. Panel; 372. First sound-absorbing layer; 373. Second sound-absorbing layer; 374. Sound-absorbing frame; 375. Sound-absorbing panel;

[0029] 4. Electric motor;

[0030] 5. Rotating components;

[0031] 51. Rotary guide rod; 511. Limiting block; 52. Flexible threaded sleeve; 521. Force-bearing ring;

[0032] 6. Guide rail assembly;

[0033] 61. Slider; 62. Slide rail;

[0034] 7. Support rollers. Detailed Implementation

[0035] Embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the accompanying drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0036] It should be noted that, where there is no conflict, the embodiments and features described in these embodiments can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0037] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0038] It should be noted that the terms "a" and "a plurality of" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0039] The names of the messages or information exchanged between the multiple devices in this embodiment of the invention are for illustrative purposes only and are not intended to limit the scope of these messages or information.

[0040] See Figure 1 , Figure 2 , Figure 3 and Figure 4 The present invention provides a noise-reducing new energy small wheeled excavator, including a lower frame 1 and an upper frame 2 mounted on the lower frame 1. The upper frame 2 is provided with a power receiving cavity 21, a noise reduction component 3 is provided in the power receiving cavity 21, and an electric motor 4 is provided in the noise reduction component 3.

[0041] The noise reduction assembly 3 includes a base 31 that is slidably connected to the lower surface of the power receiving cavity 21. Mounting brackets 32 are respectively provided at the four corners of the base 31. A front noise reduction component 33 is rotatably connected to the front side of the mounting bracket 32. Side noise reduction components 34, top noise reduction components 35 and rear noise reduction components 36 are detachably installed on the left side, right side, top and rear sides of the mounting bracket 32, respectively. The base 31 may be made of noise reduction material.

[0042] The front noise reduction component 33, the side noise reduction component 34, the top noise reduction component 35, and the rear noise reduction component 36 all adopt a noise reduction structure 37. The noise reduction structure 37 includes a panel 371, a first sound-absorbing layer 372, and a second sound-absorbing layer 373 arranged sequentially in the direction facing the motor 4. The first sound-absorbing layer 372 and the second sound-absorbing layer 373 are spaced apart by a sound-absorbing frame 374. A sound-absorbing cavity is formed between the first sound-absorbing layer 372, the second sound-absorbing layer 373, and the sound-absorbing frame 374. A sound-absorbing plate 375 is arranged in the sound-absorbing cavity. The cross-section of the sound-absorbing plate 375 is a hollow mesh structure.

[0043] With the above structure, when the motor 4 is driven, the noise reduction component 3 is installed outside the motor 4. Therefore, with the cooperation of the front noise reduction component 33, side noise reduction component 34, top noise reduction component 35 and rear noise reduction component 36, and with the setting of the noise reduction structure 37 adopted by the front noise reduction component 33, side noise reduction component 34, top noise reduction component 35 and rear noise reduction component 36, the noise generated by the motor 4 will pass through the second sound absorption layer 373, sound absorption plate 375 and first sound absorption layer 372 of the noise reduction structure 37 in sequence. After the second sound absorption layer 373 absorbs part of the noise, the hollow mesh structure of the sound absorption plate 375 plays a sound insulation role. Finally, the first sound absorption layer 372 absorbs the remaining noise, thereby achieving multiple noise reduction effects, avoiding operators working in high-noise environments for a long time, and ensuring the health of operators.

[0044] In one embodiment, see Figure 2 , Figure 3 , Figure 5 and Figure 6The front noise reduction component 33 is rotatably connected to the mounting bracket 32 ​​via a rotating component 5. The rotating component 5 includes a rotating guide rod 51 and a flexible threaded sleeve 52 disposed on the mounting bracket 32. A rotating hole 331 passes through the front noise reduction component 33 corresponding to the position of the rotating guide rod 51. The rotating guide rod 51 passes through the rotating hole 331, and the flexible threaded sleeve 52 is threadedly connected to the rotating guide rod 51. In practical applications, the front noise reduction component 33 is rotatably connected to the mounting bracket 32 ​​by the cooperation between the rotating guide rod 51 and the rotating hole 331 of the front noise reduction component 33, and the front noise reduction component 33 can rotate along the rotating guide rod 51. By cooperating with the rotating guide rod 51, the flexible threaded sleeve 52 can be moved on the rotating guide rod 51 by rotating it, thus fixing the front noise reduction component 33 to the mounting bracket 32.

[0045] A limiting block 511 is installed at the end of the rotating guide rod 51, and a protruding force ring 521 is provided at one end of the flexible threaded sleeve 52. In practical applications, the limiting block 511 can limit the rotation angle of the front noise reduction component 33, and the force ring 521 can facilitate the rotation of the flexible threaded sleeve 52.

[0046] In one embodiment, see Figure 3 The output end of the motor 4 faces the rear noise reduction component 36, and the rear noise reduction component 36 has a clearance hole 361 passing through the output end of the motor 4. In practical applications, the clearance hole 361 provides space for the output end of the motor 4, so that the output end of the motor 4 can be connected to other transmission mechanisms.

[0047] In one embodiment, see Figure 2 , Figure 3 and Figure 5 The mounting bracket 32 ​​has receiving grooves 321 corresponding to the positions of the front noise reduction component 33 and the rear noise reduction component 36, and a recessed mounting groove 322 corresponding to the position of the side noise reduction component 34. The mounting bracket 32 ​​also has a mounting plate 323 corresponding to the position of the top noise reduction component 35. There is a gap between the mounting plate 323 and the top of the mounting bracket 32 ​​to accommodate the top noise reduction component 35. In practical applications, the receiving grooves 321 on the mounting bracket 32 ​​provide space for the front noise reduction component 33 and the rear noise reduction component 36; the mounting grooves 322 allow the side noise reduction component 34 to be mounted on the mounting bracket 32; and the mounting plate 323 facilitates the mounting of the top noise reduction component 35 onto the mounting plate 323.

[0048] In one embodiment, see Figure 2 and Figure 3The base 31 and the lower surface of the power receiving cavity 21 are slidably connected via a guide rail assembly 6. The guide rail assembly 6 includes a slider 61 mounted on the base 31 and a slide rail 62 mounted on the lower surface of the power receiving cavity 21. The slider 61 is slidably connected to the slide rail 62. In practical applications, the slider 61 on the base 31 can move along the direction of the slide rail 62 due to the arrangement of the slider 61 and the slide rail 62 in the guide rail assembly 6, which facilitates the installation and maintenance of the motor 4.

[0049] The base 31 is equipped with support rollers 7. In practical applications, the support rollers 7 provide support for the base 31 and improve the smoothness of the base 31 when sliding.

[0050] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0051] Those skilled in the art should understand that the above embodiments are merely for clearly illustrating the present invention and are not intended to limit the scope of the present invention. For those skilled in the art, other changes or modifications can be made based on the above-described invention, and these changes or modifications still fall within the scope of the present invention.

Claims

1. A noise-reducing new energy small wheeled excavator, characterized in that, It includes a lower frame and an upper frame mounted on the lower frame. The upper frame is provided with a power receiving cavity, and a noise reduction component is provided in the power receiving cavity. The noise reduction component is provided with an electric motor. The noise reduction assembly includes a base slidably connected to the lower surface of the power receiving cavity. Mounting brackets are respectively provided at the four corners of the base. A front noise reduction component is rotatably connected to the front side of the mounting bracket. Side noise reduction components, top noise reduction components, and rear noise reduction components are detachably installed on the left, right, top, and rear sides of the mounting bracket, respectively. The front noise reduction component, side noise reduction component, top noise reduction component, and rear noise reduction component all adopt a noise reduction structure. The noise reduction structure includes a panel, a first sound-absorbing layer, and a second sound-absorbing layer arranged sequentially in the direction facing the motor. The first sound-absorbing layer and the second sound-absorbing layer are spaced apart by a sound-absorbing frame. A sound-absorbing cavity is formed between the first sound-absorbing layer, the second sound-absorbing layer, and the sound-absorbing frame. A sound-absorbing plate is arranged in the sound-absorbing cavity. The cross-section of the sound-absorbing plate is a hollow mesh structure.

2. The noise-reducing new energy small wheeled excavator as described in claim 1, characterized in that, The front noise reduction component is rotatably connected to the mounting bracket via a rotating component. The rotating component includes a rotating guide rod and a flexible threaded sleeve disposed on the mounting bracket. The front noise reduction component has a rotating hole through the rotating guide rod at the position corresponding to the rotating guide rod. The rotating guide rod passes through the rotating hole, and the flexible threaded sleeve is threadedly connected to the rotating guide rod.

3. The noise-reducing new energy small wheeled excavator as described in claim 2, characterized in that, A limit block is installed at the end of the rotating guide rod, and a convex force-bearing ring is provided at one end of the flexible threaded sleeve.

4. The noise-reducing new energy small wheeled excavator as described in claim 1, characterized in that, The output end of the motor faces the rear noise reduction component, and the rear noise reduction component has a clearance hole through the output end of the motor.

5. The noise-reducing new energy small wheeled excavator as described in claim 1, characterized in that, The mounting bracket has receiving grooves corresponding to the positions of the front and rear noise reduction components, the mounting bracket has a recessed mounting groove corresponding to the position of the side noise reduction component, and the mounting bracket has a mounting plate corresponding to the position of the top noise reduction component. There is a gap between the mounting plate and the top of the mounting bracket to accommodate the top noise reduction component.

6. The noise-reducing new energy small wheeled excavator as described in claim 1, characterized in that, The base and the lower surface of the power receiving cavity are slidably connected by a guide rail assembly. The guide rail assembly includes a slider mounted on the base and a slide rail mounted on the lower surface of the power receiving cavity. The slider is slidably connected to the slide rail.

7. The noise-reducing new energy small wheeled excavator as described in claim 1, characterized in that, The base is equipped with support rollers.

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