Telescopic chassis of miniature excavator
By designing the protective device of the telescopic chassis of the micro excavator, the problem of track damage caused by rolling large stones is solved, and more efficient roadblock cleaning and track protection is achieved, improving the working efficiency and service life of the excavator.
Patent Information
- Application Number
- CN202421225562.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-05-31
AI Technical Summary
In the construction environment, the excavator's tracks are damaged by rolling large stones and other roadblocks, which affects the normal use and working efficiency of the excavator.
A micro excavator telescopic chassis is designed, including the chassis body, protective devices and fixtures. The protective devices are connected by hydraulic telescopic rods and track brackets. The tapered design of the protective plate and the side plate protect the tracks to reduce rolling damage.
Effectively clean roadblocks such as large stones in front, reduce obstacles to the excavator's advance, improve work efficiency and use effect, and extend the service life of the track.
Smart Images
Figure CN222632380U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of telescopic chassis of excavators, in particular to a telescopic chassis of a mini excavator. Background Art
[0002] The telescopic chassis of the excavator is a new type of chassis used in modern micro excavators. It changes the distance between the two tracks by telescoping, so that the excavator can pass through a smaller space and adapt to use in more complex environments.
[0003] When the traditional excavator chassis is in use, the crawler on the crawler bracket is driven to move the excavator, and then the excavator is used in conjunction with the bucket to perform construction operations. However, in actual use, it is found that there are many large rocks and other roadblocks in many construction environments. At this time, the crawler will roll over the surface of the rocks. Long-term use will cause serious damage to the crawler surface, thereby affecting the normal use of the excavator. In addition, the rolling form makes it difficult for the excavator to move forward smoothly, affecting the work efficiency of the construction operation. Utility Model Content
[0004] The purpose of the utility model is to solve the problem in the prior art that there are many large rocks and other roadblocks in the construction environment. At this time, the crawler will roll over the surface of the rocks. Long-term use will cause serious damage to the crawler surface, thereby affecting the normal use of the excavator. In addition, the rolling form will make it difficult for the excavator to move forward smoothly, affecting the work efficiency of the construction operation. A telescopic chassis for a mini excavator is proposed.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a telescopic chassis of a mini excavator, comprising a chassis body, a protective device and a fixing device, hydraulic telescopic rods are respectively arranged on both sides of the surface of the chassis body, the output end of the hydraulic telescopic rod is fixedly connected with a crawler bracket, the surface of the crawler bracket is provided with a crawler body, the protective device is installed on one side surface of the chassis body by means of a fixing device, the protective device comprises two mounting plates, a reinforcement plate is fixedly connected on one side of the two mounting plates close to each other, the two mounting plates are installed on one side surface of the chassis body by means of a fixing device, and a protective plate is fixedly connected on one side of the two mounting plates away from the chassis body, the cross-section of the protective plate is conical, and side plates are respectively fixedly connected on both sides of the surface of the protective plate.
[0006] The effect achieved by the above components is that when the chassis body cooperates with the entire excavator to move forward, it can better clear away roadblocks such as large rocks in front, thereby reducing obstacles to the forward use of the excavator, improving work efficiency and use effect, and making it less likely for the crawler body to be damaged by excessive contact and collision, thereby extending the service life of the crawler body.
[0007] Preferably, a reinforcing plate is fixedly connected to one side surface of the protective plate, and one side surface of the reinforcing plate forms an angle with the protective plate.
[0008] The effect achieved by the above components is: through the setting of the reinforcement plate, it is not easy for the object to pass over the top of the protective plate when pushing the object, and the stones are better pushed to both sides to ensure the normal movement of the excavator and expand the protection range of the protective device.
[0009] Preferably, an auxiliary plate is fixedly connected to a surface of one side of the protective plate away from the protective plate, and a plurality of evenly distributed grooves are formed on the surface of the auxiliary plate.
[0010] The effect achieved by the above components is: through the setting of the auxiliary plate, the protective plate can allow small stones on the ground to pass through when pushing large stones, thereby reducing the resistance of the protective plate and better ensuring the forward movement of the excavator.
[0011] Preferably, a mounting frame is fixedly connected to the surface of the reinforcement plate, and a roller is rotatably connected to the inner wall of the mounting frame.
[0012] The effect achieved by the above components is: through the setting of the rollers, when the protective plate moves with the chassis body, the rollers can roll on the ground to form a certain supporting effect on the protective plate, making the protective plate more stable to use.
[0013] Preferably, a reinforcing rib is fixedly connected to the surface of the protective plate, and two ends of the reinforcing rib are respectively fixedly connected to the surface of the protective plate.
[0014] The effect achieved by the above components is: through the setting of the reinforcing ribs, the protective plate is more stable and less likely to deform when pushing large rocks on the ground, thereby ensuring the normal use of the protective plate.
[0015] Preferably, the fixing device includes two fixing frames, and the two fixing frames are respectively fixedly connected to the surface of the chassis body, and the inner walls of the two fixing frames are respectively plugged into the two mounting plates, and screw holes are respectively opened on both sides of the surfaces of the two fixing frames, and the inner walls of the screw holes are threadedly connected with bolts, and the bolts are plugged into the surface of the mounting plate.
[0016] The effects achieved by the above components are: the protective device is more convenient to use and easier to inspect and maintain, thus ensuring the normal use of the protective device.
[0017] Preferably, a nut is threadedly connected to the surface of the bolt, and the nut abuts against a side surface of the fixing frame.
[0018] The effect achieved by the above components is that, through the setting of the nut, the bolt is not likely to rotate and loosen when installed on the fixing frame, thereby ensuring the stable connection of the mounting plate.
[0019] Preferably, the surfaces of the two fixing frames are respectively fixedly connected with reinforcement frames, the inner walls of the reinforcement frames are plugged with plug plates, and the plug plates are fixedly connected to the surface of the mounting plate.
[0020] The effects achieved by the above components are: through the arrangement of the plug plate and the reinforcement frame, the connection between the mounting plate and the fixing frame is made more stable and firm, thereby making the assembly of the protective device more stable and improving the use effect of the protective device.
[0021] Compared with the prior art, the advantages and positive effects of the utility model are:
[0022] In the utility model, when the chassis body cooperates with the entire excavator to move forward, it can better clear away roadblocks such as large rocks in front, thereby reducing obstacles to the forward use of the excavator, improving work efficiency and use effect, and making it less likely for the crawler body to be damaged by excessive contact and collision, thereby extending the service life of the crawler body. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 A schematic diagram of the three-dimensional structure of this application;
[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of the protective device of this application;
[0025] Figure 3 For this application Figure 2 A schematic diagram of the side three-dimensional structure;
[0026] Figure 4 This is a schematic diagram of the three-dimensional structure of the fixing device of this application.
[0027] Legend: 1. Chassis body; 2. Hydraulic telescopic rod; 3. Track bracket; 4. Track body; 5. Protective device; 51. Mounting plate; 52. Reinforcement plate; 53. Protective plate; 54. Side plate; 55. Reinforcement plate; 56. Auxiliary plate; 57. Groove; 58. Mounting frame; 59. Roller; 510. Reinforcement rib; 6. Fixing device; 61. Fixing frame; 62. Screw hole; 63. Bolt; 64. Nut; 65. Insert plate; 66. Reinforcement frame. DETAILED DESCRIPTION
[0028] Embodiment 1, as Figure 1As shown, a telescopic chassis of a mini excavator includes a chassis body 1, a protective device 5 and a fixing device 6. Hydraulic telescopic rods 2 are respectively arranged on both sides of the surface of the chassis body 1. The output end of the hydraulic telescopic rod 2 is fixedly connected to a crawler bracket 3. The surface of the crawler bracket 3 is provided with a crawler body 4. The protective device 5 is installed on one side surface of the chassis body 1 by means of the fixing device 6.
[0029] Reference Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment: the protective device 5 includes two mounting plates 51, and the sides of the two mounting plates 51 close to each other are fixedly connected with a reinforcing plate 52, and the two mounting plates 51 are mounted on the side surface of the chassis body 1 by means of a fixing device 6, and the sides of the two mounting plates 51 away from the chassis body 1 are fixedly connected with a protective plate 53, and the cross section of the protective plate 53 is conical, and the two sides of the surface of the protective plate 53 are respectively fixedly connected with side plates 54, and the effect achieved by the above components is: when the excavator is in use, the protective device 5 is installed on one side of the chassis body 1, and at this time, the chassis body 1 drives the excavator When moving, the protective plate 53 on the mounting plate 51 moves along with it. At this time, the large rocks in front of the excavator will be pushed to the sides of the excavator by the conical protective plate 53, and the side plates 54 on both sides of the protective plate 53 will protect the crawler body 4, so that the rocks are not easy to contact the crawler body 4. At this time, when the chassis body 1 cooperates with the entire excavator to move forward, it can better clear the roadblocks such as large rocks in front, thereby reducing the obstacles to the forward use of the excavator, improving work efficiency and use effect, and making it difficult for the crawler body 4 to be damaged due to excessive contact and collision, thereby extending the service life of the crawler body 4.
[0030] Reference Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment: a reinforcing plate 55 is fixedly connected to one side surface of the protective plate 53, and one side surface of the reinforcing plate 55 forms an angle with the protective plate 53. The effects achieved by the above components are: through the setting of the reinforcing plate 55, when pushing an object, it is not easy for the object to pass over the top of the protective plate 53, and the stones are better pushed to both sides to ensure the normal movement of the excavator, and the protection range of the protective device 5 is also expanded. The side surface of the protective plate 53 away from the protective plate 53 is fixedly connected to an auxiliary plate 56, and the surface of the auxiliary plate 56 is provided with a plurality of evenly distributed grooves 57. The effects achieved by the above components are: through the setting of the auxiliary plate 56, when the protective plate 53 pushes large stones, small stones on the ground can pass through, thereby reducing the resistance of the protective plate 53 and better ensuring the forward movement of the excavator.
[0031] Reference Figure 1 , Figure 2 and Figure 3As shown, in the present embodiment: the surface of the reinforcement plate 52 is fixedly connected with a mounting frame 58, and the inner wall of the mounting frame 58 is rotatably connected with a roller 59, and the effects achieved by the above components are: through the setting of the roller 59, when the protective plate 53 moves with the chassis body 1, the roller 59 can roll on the ground, thereby forming a certain supporting effect on the protective plate 53, so that the protective plate 53 is more stable to use, and the surface of the protective plate 53 is fixedly connected with a reinforcing rib 510, and the two ends of the reinforcing rib 510 are respectively fixedly connected to the surface of the protective plate 53, and the effects achieved by the above components are: through the setting of the reinforcing rib 510, the protective plate 53 is more stable and not easy to deform when pushing large rocks on the ground, thereby ensuring the normal use of the protective plate 53.
[0032] Reference Figure 1 and Figure 4 As shown, in this embodiment: the fixing device 6 includes two fixing frames 61, and the two fixing frames 61 are respectively fixedly connected to the surface of the chassis body 1, and the inner walls of the two fixing frames 61 are respectively plugged into the two mounting plates 51, and screw holes 62 are respectively opened on both sides of the surfaces of the two fixing frames 61. The inner walls of the screw holes 62 are threadedly connected with bolts 63, and the bolts 63 are plugged into the surfaces of the mounting plates 51. The effects achieved by the above components are: when the protective device 5 is installed on the chassis body 1, the two mounting plates 51 are first plugged into the inner walls of the fixing frames 61, and then the bolts 63 are threadedly connected to the inner walls of the screw holes 62 on the surface of the fixing frames 61 and penetrated until the bolts 63 pass through the surface of the mounting plates 51. At this time, the protective device 5 is more convenient to use and is more convenient to inspect and maintain, thereby ensuring the normal use of the protective device 5.
[0033] Reference Figure 1 and Figure 4 As shown, in this embodiment: the surface of the bolt 63 is threadedly connected with a nut 64, and the nut 64 abuts against the surface of one side of the fixed frame 61. The effect achieved by the above components is: through the setting of the nut 64, the bolt 63 is not easy to rotate and loosen when installed on the fixed frame 61, thereby ensuring the stable connection of the mounting plate 51, and the surfaces of the two fixed frames 61 are respectively fixedly connected with reinforcement frames 66, and the inner wall of the reinforcement frame 66 is plugged with an insertion plate 65, and the insertion plate 65 is fixedly connected to the surface of the mounting plate 51. The effect achieved by the above components is: through the setting of the insertion plate 65 and the reinforcement frame 66, the connection between the mounting plate 51 and the fixed frame 61 is more stable and firm, so that the assembly of the protective device 5 is more stable, and the use effect of the protective device 5 is improved.
[0034] Working principle: When the excavator is in use, the protective device 5 is installed on one side of the chassis body 1. At this time, when the chassis body 1 drives the excavator to move, the protective plate 53 on the mounting plate 51 moves accordingly. At this time, the large rocks in front of the excavator will be pushed to the sides of the excavator by the conical protective plate 53, and the side plates 54 on both sides of the protective plate 53 will protect the crawler body 4, so that the rocks are not easy to contact the crawler body 4. At this time, when the chassis body 1 cooperates with the entire excavator to move forward, it can better clear the roadblocks such as large rocks in front, thereby reducing the obstacles to the forward use of the excavator, improving work efficiency and use effect, and making it difficult for the crawler body 4 to be damaged due to excessive contact and collision, thereby extending the service life of the crawler body 4.
[0035] When the protective device 5 is installed on the chassis body 1, the two mounting plates 51 are first inserted into the inner wall of the fixed frame 61, and at the same time, the plug plate 65 on the mounting plate 51 will be inserted into the inner wall of the reinforcing frame 66 on the surface of the fixed frame 61, and then the bolt 63 is threadedly connected to the inner wall of the screw hole 62 on the surface of the fixed frame 61 and penetrated until the bolt 63 passes through the surface of the mounting plate 51. At this time, the protective device 5 is more convenient to use and easier to inspect and maintain, ensuring the normal use of the protective device 5.
Claims
1. A telescopic chassis for a mini excavator, comprising a chassis body (1), a protective device (5) and a fixing device (6), characterized in that: Hydraulic telescopic rods (2) are respectively arranged on both sides of the surface of the chassis body (1), the output end of the hydraulic telescopic rod (2) is fixedly connected to a crawler bracket (3), the surface of the crawler bracket (3) is provided with a crawler body (4), the protective device (5) is mounted on one side of the surface of the chassis body (1) by means of a fixing device (6), the protective device (5) comprises two mounting plates (51), a reinforcing plate (52) is fixedly connected to one side of the two mounting plates (51) close to each other, the two mounting plates (51) are mounted on one side of the surface of the chassis body (1) by means of a fixing device (6), a protective plate (53) is fixedly connected to one side of the two mounting plates (51) away from the chassis body (1), the cross section of the protective plate (53) is conical, and side plates (54) are respectively fixedly connected to the two sides of the surface of the protective plate (53).
2. A telescopic chassis for a mini excavator according to claim 1, characterized in that: A reinforcing plate (55) is fixedly connected to one side surface of the protective plate (53), and one side surface of the reinforcing plate (55) and the protective plate (53) form an angle with each other.
3. The telescopic chassis of a mini excavator according to claim 2, characterized in that: An auxiliary plate (56) is fixedly connected to a surface of one side of the protective plate (53) away from the protective plate (53), and a plurality of evenly distributed grooves (57) are formed on the surface of the auxiliary plate (56).
4. The telescopic chassis of a mini excavator according to claim 1, characterized in that: A mounting frame (58) is fixedly connected to the surface of the reinforcing plate (52), and a roller (59) is rotatably connected to the inner wall of the mounting frame (58).
5. The telescopic chassis of a mini excavator according to claim 1, characterized in that: A reinforcing rib (510) is fixedly connected to the surface of the protective plate (53), and two ends of the reinforcing rib (510) are respectively fixedly connected to the surface of the protective plate (53).
6. The telescopic chassis of a mini excavator according to claim 1, characterized in that: The fixing device (6) comprises two fixing frames (61), the two fixing frames (61) are respectively fixedly connected to the surface of the chassis body (1), the inner walls of the two fixing frames (61) are respectively plugged into the two mounting plates (51), screw holes (62) are respectively opened on both sides of the surface of the two fixing frames (61), the inner walls of the screw holes (62) are threadedly connected with bolts (63), and the bolts (63) are plugged into the surface of the mounting plate (51).
7. The telescopic chassis of a mini excavator according to claim 6, characterized in that: A nut (64) is threadedly connected to the surface of the bolt (63), and the nut (64) abuts against a side surface of the fixing frame (61).
8. The telescopic chassis of a mini excavator according to claim 6, characterized in that: The surfaces of the two fixing frames (61) are respectively fixedly connected with reinforcement frames (66), the inner walls of the reinforcement frames (66) are plugged with plug boards (65), and the plug boards (65) are fixedly connected with the surface of the mounting plate (51).