Excavator chassis support
By installing protective devices at both ends of the excavator chassis bracket to cushion collisions and alert the driver, the problem of easy damage to the chassis is solved, and protective effects and convenient maintenance are achieved.
Patent Information
- Application Number
- CN202422853286.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-11-22
AI Technical Summary
During movement, the excavator chassis is prone to direct contact and collision with foreign objects such as large rocks on the soil surface, causing structural damage. In addition, it is difficult for people in the cab to observe the front and rear ends of the base, and it is easy to misjudge obstacles and cause further damage.
Protective devices are installed at both ends of the excavator chassis bracket, including rectangular plates, protective plates, composite springs and pressure sensors. The protective plates can buffer collisions and remind the driver to stop moving when the obstacle is heavy, thereby preventing direct impact.
It effectively prevents the chassis surface from direct contact and collision with foreign objects, extends the service life of the chassis, and reminds the driver through sensors to avoid further damage.
Smart Images
Figure CN223398176U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of excavator supports, in particular to an excavator chassis support. Background Art
[0002] An excavator is an earth-moving machine that uses its bucket to dig up materials above or below the surface and load them onto transport vehicles or unload them into a stockpile. The materials excavated by excavators primarily include 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 excavator chassis support bears the weight of the entire excavator. During the operation of the excavator, due to the reciprocating motion of the excavator working device and the slewing device, the chassis body moves frequently. During the movement, the front and rear ends of the chassis are prone to direct contact and collision with foreign objects such as large rocks on the soil surface, causing damage to the surface structure of the chassis. In addition, it is difficult for people in the cab to observe the situation under the front and rear ends of the base, and it is easy to misjudge the obstruction of obstacles on the front and rear sides of the base, and continue to control the movement of the excavator, thereby further damaging the base. Utility Model Content
[0004] The purpose of the utility model is to solve the problem that the front and rear ends of the chassis are easily in direct contact and collision with foreign objects such as large stones on the soil surface during the movement of the excavator, resulting in damage to the surface structure of the chassis, and it is difficult for personnel in the cab to observe the situation below the front and rear ends of the base, and it is easy to misjudge the obstruction of the obstructions on the front and rear sides of the base, and continue to control the movement of the excavator, thereby further causing damage to the base.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: an excavator undercarriage bracket, comprising a frame body, both ends of the frame body are provided with protective devices with the aid of a convenient device, the convenient device comprises a rectangular plate, the protective device comprises two slot rods, one end of the two slot rods is fixedly connected to one side of the rectangular plate, the inner walls of the two slot rods are respectively slidably connected with sliding rods, one end of the sliding rod is fixedly connected to the protective plate, the sides of the two sliding rods close to each other are fixedly connected with the rectangular rod, the two ends of the rectangular rod slide respectively on one side of the inner walls of the two slot rods, two composite springs are provided on one side of the rectangular rod, the two ends of the two composite springs are respectively fixedly connected to one side of the rectangular plate and one side of the rectangular rod, one side of the rectangular rod is fixedly connected with a top rod, and a pressure sensor is provided on one side of the rectangular plate.
[0006] The effect achieved by the above components is: by setting up protective plates, when installing the excavator chassis bracket, the rectangular plates and protective devices are installed on the outer surface of the frame on both sides of the frame with the help of auxiliary devices. When the excavator is assembled and used, the protective plates at both ends of the frame can protect the two sides of the bottom of the frame, and avoid direct contact and collision between the frame and objects such as stones to cause surface damage as much as possible. When the excavator moves and one end of the protective plate is against the surface of the object, the protective plate pushes the obstruction away from the outside of the frame, and the two sliding rods on one side of the protective plate will slide toward the rectangular plate on the inner wall of the groove rod and compress the two composite springs between the rectangular rod and the rectangular plate. The movement of the protective plate is buffered by the thrust of the composite spring. When the obstruction on one side of the protective plate is heavy and cannot be pushed, the end of the top rod on one side of the rectangular rod is against the side of the pressure sensor on the outer surface of the rectangular plate, which will cause the pressure parameter of the pressure sensor to change, and the change will be transmitted to the cab to remind the driver to stop the excavator and continue moving.
[0007] Preferably, two cylinders are fixedly connected to one side of the rectangular rod, and one end of the two cylinders is fixedly connected to a gasket, which is made of rubber.
[0008] The effect achieved by the above components is that when one side of the protective plate is subjected to force so that one end of the push rod abuts against the surface of the pressure sensor, the rubber gasket at one end of the cylinder abuts against the outer surface of the rectangular plate to further cushion the movement of the protective plate.
[0009] Preferably, two round rods are fixedly connected to one side of the rectangular plate, and the diameters of the two round rods are slightly smaller than the inner diameter of the composite spring.
[0010] The effect achieved by the above components is that when the composite spring is deformed, it will move outside the round rod. The round rod can reinforce the internal shape of the composite spring, thereby preventing the composite spring from undergoing lateral deformation that affects normal use as much as possible.
[0011] Preferably, the cylinder is located outside the composite spring, and the total length of the round rod and the cylinder is slightly smaller than the total length of the composite spring.
[0012] The effect achieved by the above components is that when the rectangular rod moves, the cylinder will move outside the composite spring. The cylinder can further reinforce the external shape of the composite spring and improve the service life of the composite spring.
[0013] Preferably, a metal sheet is fixedly connected to one side of the rectangular plate, and the metal sheet is located outside the pressure sensor.
[0014] The effect achieved by the above components is: when one end of the push rod moves toward the pressure sensor, the other end will press against the outer surface of the metal sheet, causing the metal sheet to deform and cause the metal sheet to collide with the pressure sensor. The metal sheet can protect the pressure sensor and avoid the pressure sensor from being directly impacted by the push rod and damaged as much as possible.
[0015] Preferably, the outer surface of the rectangular plate is provided with a plurality of through holes, the inner walls of the through holes are slidably provided with bolts, and the two sides of the frame are provided with a plurality of threaded holes, the outer surfaces of the bolts are threadedly connected to the inner walls of the threaded holes.
[0016] The effect achieved by the above components is: when installing the protective device, one side of the rectangular plate is attached to the outer surface of the frame so that the through holes on the outer surface of the rectangular plate are aligned with the threaded holes on the surface of the frame, and then several bolts are used to pass through the through holes on the outer surface of the rectangular plate and insert them into the threaded holes. The bolts are turned so that the bolts are threadedly connected to the inner walls of the threaded holes to install the rectangular plate and the protective device on the outside of the frame. The bolts are turned so that the bolts are disengaged from the inside of the threaded holes to facilitate disassembly, maintenance and replacement of the rectangular plate and the protective device, thereby improving the convenience of using the protective device.
[0017] Preferably, a plurality of elastic ropes are fixedly connected to one side of the rectangular plate, and one end of the elastic rope away from the rectangular plate is fixedly connected to one end of the bolt.
[0018] The effect achieved by the above components is: by setting the elastic rope, the bolt can always be fixed on the outside of the rectangular plate for easy removal and use and to prevent the bolt from falling and being lost, thereby improving the convenience of disassembling and assembling the protective device through the convenient device.
[0019] Preferably, two positioning rods are fixedly connected to one side of the frame, and the distance between the two positioning rods is slightly greater than the height of the rectangular plate.
[0020] The effect achieved by the above components is: when installing the rectangular plate and the protective device, one side of the rectangular plate can be attached to the outer surface of the frame between the two positioning rods. The positioning rods can be used to preliminarily limit the angle between the rectangular plate and the frame, making it easier to install the rectangular plate and the protective device.
[0021] Compared with the prior art, the advantages and positive effects of the present invention are:
[0022] In the utility model, a protective device is provided and protective plates are installed at both ends of the frame. The protective plates at both ends of the frame can protect both sides of the bottom end of the frame, thereby avoiding as much as possible the frame from direct contact and collision with objects such as stones to cause surface damage, and buffering the movement of the protective plates by two composite springs, and reminding the driver to stop moving the vehicle by contacting one end of the top rod with the pressure sensor to avoid direct collision and damage between the frame and the obstacle. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of the frame of the utility model;
[0025] Figure 3 This is a schematic diagram of the three-dimensional structure of the positioning rod of the utility model;
[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the protective plate of the utility model.
[0027] Legend: 1. Frame; 2. Protective device; 3. Convenient device; 21. Slotted rod; 22. Sliding rod; 23. Protective plate; 24. Rectangular rod; 25. Composite spring; 26. Cylinder; 27. Push rod; 28. Pressure sensor; 29. Gasket; 210. Round rod; 211. Metal sheet; 31. Rectangular plate; 32. Through hole; 33. Bolt; 34. Threaded hole; 35. Elastic rope; 36. Positioning rod. DETAILED DESCRIPTION
[0028] Example 1, as Figure 1-4As shown, an excavator chassis bracket includes a frame body 1, and protective devices 2 are provided at both ends of the frame body 1 with the help of convenient devices 3. The convenient device 3 includes a rectangular plate 31. The protective device 2 includes two slot rods 21. One end of the two slot rods 21 is fixedly connected to one side of the rectangular plate 31. The inner walls of the two slot rods 21 are respectively slidably connected to sliding rods 22. One end of the sliding rod 22 is fixedly connected to the protective plate 23. The two sliding rods 22 are fixedly connected to the side close to each other with a rectangular rod 24. The two ends of the rectangular rod 24 slide on one side of the inner wall of the two slot rods 21 respectively. One side of the rectangular rod 24 is provided with two complex The two ends of the composite spring 25 are respectively fixedly connected to one side of the rectangular plate 31 and one side of the rectangular rod 24. One side of the rectangular rod 24 is fixedly connected to the top rod 27. A pressure sensor 28 is provided on one side of the rectangular plate 31. By setting the protective plate 23, when installing the excavator chassis bracket, the rectangular plate 31 and the protective device 2 are installed on the outer surface of the frame 1 on both sides of the frame 1 with the help of auxiliary devices. When the excavator is assembled and used, the protective plates 23 at both ends of the frame 1 can protect the two sides of the bottom end of the frame 1, and avoid direct contact between the frame 1 and objects such as stones as much as possible. The collision causes surface damage. When the excavator moves and one end of the protective plate 23 is against the surface of the object, the protective plate 23 pushes the obstacle away from the outside of the frame 1. The two sliding rods 22 on one side of the protective plate 23 will slide on the inner wall of the groove rod 21 toward the direction of the rectangular plate 31 and compress the two composite springs 25 between the rectangular rod 24 and the rectangular plate 31. The movement of the protective plate 23 is buffered by the thrust of the composite spring 25. When the obstacle on one side of the protective plate 23 is heavy and cannot be pushed, the end of the top rod 27 on the side of the rectangular rod 24 is against the side of the pressure sensor 28 on the outer surface of the rectangular plate 31, which will cause the pressure sensor 28 to move. The pressure parameters of the sensor 28 change, and the changes are transmitted to the cab, reminding the driver to stop the excavator and continue moving. By setting up the protective device 2, by installing protective plates 23 at both ends of the frame 1, the protective plates 23 at both ends of the frame 1 can protect the two sides of the bottom end of the frame 1, and avoid direct contact and collision between the frame 1 and objects such as stones to cause surface damage as much as possible. The movement of the protective plate 23 is buffered by two composite springs 25, and one end of the top rod 27 contacts the pressure sensor 28 to remind the driver to stop moving the vehicle to avoid direct collision and damage between the frame 1 and obstacles.
[0029] Reference Figure 2 and 4As shown, in this embodiment: two cylinders 26 are fixedly connected to one side of the rectangular rod 24, and one end of the two cylinders 26 is fixedly connected to a gasket 29, which is made of rubber material. When the protective plate 23 is subjected to force so that one end of the push rod 27 is against the surface of the pressure sensor 28, the rubber gasket 29 at one end of the cylinder 26 will be against the outer surface of the rectangular plate 31 to further cushion the movement of the protective plate 23, and two round rods 210 are fixedly connected to one side of the rectangular plate 31. The diameter of the two round rods 210 is slightly smaller than the inner diameter of the composite spring 25. When the composite spring 25 is deformed, it will move on the outside of the round rod 210. The round rod 210 can reinforce the internal shape of the composite spring 25 to avoid lateral deformation of the composite spring 25 as much as possible to affect normal use.
[0030] Reference Figure 2 and 4 As shown, in this embodiment: the cylinder 26 is located on the outside of the composite spring 25, and the total length of the round rod 210 and the cylinder 26 is slightly smaller than the total length of the composite spring 25. When the rectangular rod 24 moves, the cylinder 26 will move on the outside of the composite spring 25. The cylinder 26 can further reinforce the external shape of the composite spring 25, thereby improving the service life of the composite spring 25. A metal sheet 211 is fixedly connected to one side of the rectangular plate 31. The metal sheet 211 is located on the outside of the pressure sensor 28. When one end of the push rod 27 moves toward the direction of the pressure sensor 28, the other end will abut against the outer surface of the metal sheet 211, causing the metal sheet 211 to deform and causing the metal sheet 211 to collide with the pressure sensor 28. The metal sheet 211 can protect the pressure sensor 28 and avoid the pressure sensor 28 from being directly hit and damaged by the push rod 27 as much as possible.
[0031] Reference Figure 1-4 As shown, in this embodiment: the outer surface of the rectangular plate 31 is provided with a plurality of through holes 32, and the inner walls of the through holes 32 are slidably inserted with bolts 33, and a plurality of threaded holes 34 are provided on both sides of the frame 1, and the outer surfaces of the bolts 33 are threadedly connected to the inner walls of the threaded holes 34. When installing the protective device 2, one side of the rectangular plate 31 is attached to the outer surface of the frame 1 so that the through holes 32 on the outer surface of the rectangular plate 31 are aligned with the threaded holes 34 on the surface of the frame 1, and then a plurality of bolts 33 are used to pass through the through holes 32 on the outer surface of the rectangular plate 31 and insert them into the threaded holes 34. By turning the bolts 33 so that the bolts 33 are threadedly connected to the inner walls of the threaded holes 34, the rectangular plate 31 and the protective device 2 can be installed on the outside of the frame 1. By turning the bolts 33 so that the bolts 33 are disengaged from the inside of the threaded holes 34, it is convenient to disassemble, maintain and replace the rectangular plate 31 and the protective device 2, thereby improving the convenience of using the protective device 2.
[0032] Reference Figure 2-4As shown, in this embodiment: one side of the rectangular plate 31 is fixedly connected with several elastic ropes 35, and the end of the elastic rope 35 away from the rectangular plate 31 is fixedly connected to one end of the bolt 33. By setting the elastic rope 35, the bolt 33 can always be fixed to the outside of the rectangular plate 31 for easy removal and use and to prevent the bolt 33 from falling and being lost, thereby improving the convenience of disassembling and assembling the protective device 2 through the convenient device 3. Two positioning rods 36 are fixedly connected to one side of the frame 1, and the distance between the two positioning rods 36 is slightly larger than the height of the rectangular plate 31. When installing the rectangular plate 31 and the protective device 2, one side of the rectangular plate 31 can be attached to the outer surface of the frame 1 between the two positioning rods 36. The positioning rods 36 can be used to preliminarily limit the angle between the rectangular plate 31 and the frame 1, which is convenient for installing the rectangular plate 31 and the protective device 2.
[0033] Working principle: When installing the undercarriage bracket of the excavator, one side of the rectangular plate 31 is fitted to the outer surface of the frame 1 so that the through holes 32 on the outer surface of the rectangular plate 31 are aligned with the threaded holes 34 on the surface of the frame 1. Then, a number of bolts 33 are used to pass through the through holes 32 on the outer surface of the rectangular plate 31 and insert them into the threaded holes 34. The bolts 33 are turned so that the bolts 33 are threadedly connected with the inner walls of the threaded holes 34. The rectangular plate 31 and the protective device 2 can be installed on the outside of the frame 1. When the excavator is assembled and used, the protective plates 23 at both ends of the frame 1 can protect the two sides of the bottom end of the frame 1, and avoid direct contact and collision between the frame 1 and objects such as stones as much as possible to cause surface damage. When the excavator is used, the protective plates 23 at both ends of the frame 1 can protect the two sides of the bottom end of the frame 1, and avoid direct contact and collision between the frame 1 and objects such as stones as much as possible to avoid surface damage. When the movement causes one end of the protective plate 23 to rest against the surface of an object, the protective plate 23 pushes the obstruction away from the outside of the frame 1, and the two sliding rods 22 on one side of the protective plate 23 slide on the inner wall of the slot rod 21 toward the rectangular plate 31 and compress the two composite springs 25 between the rectangular rod 24 and the rectangular plate 31. The movement of the protective plate 23 is buffered by the thrust of the composite springs 25. When the obstruction on one side of the protective plate 23 is heavy and cannot be pushed, the end of the top rod 27 on the side of the rectangular rod 24 rests against the side of the pressure sensor 28 on the outer surface of the rectangular plate 31, which causes the pressure parameters of the pressure sensor 28 to change, and the change is transmitted to the cab to remind the driver to stop the excavator and continue moving.
[0034] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification of the above embodiment based on the technical essence of the present invention that does not deviate from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
Claims
1. An excavator chassis bracket, comprising a frame body (1), characterized in that: The two ends of the frame (1) are provided with protective devices (2) by means of a convenient device (3). The convenient device (3) includes a rectangular plate (31). The protective device (2) includes two slot rods (21). One end of the two slot rods (21) is fixedly connected to one side of the rectangular plate (31). The inner walls of the two slot rods (21) are respectively slidably connected with sliding rods (22). One end of the sliding rod (22) is fixedly connected to the protective plate (23). The sides of the two sliding rods (22) close to each other are fixedly connected with a rectangular rod (24). The two ends of the rectangular rod (24) slide on one side of the inner walls of the two slot rods (21). Two composite springs (25) are provided on one side of the rectangular plate (31) and one side of the rectangular rod (24). The two ends of the two composite springs (25) are respectively fixedly connected to one side of the rectangular plate (31) and one side of the rectangular rod (24). One side of the rectangular rod (24) is fixedly connected with a top rod (27). A pressure sensor (28) is provided on one side of the rectangular plate (31).
2. The excavator chassis bracket according to claim 1, characterized in that: One side of the rectangular rod (24) is fixedly connected to two cylinders (26), and one end of the two cylinders (26) is fixedly connected to a gasket (29), which is made of rubber material.
3. The excavator chassis bracket according to claim 2, characterized in that: Two round rods (210) are fixedly connected to one side of the rectangular plate (31), and the diameters of the two round rods (210) are slightly smaller than the inner diameter of the composite spring (25).
4. The excavator chassis bracket according to claim 3, characterized in that: The cylinder (26) is located outside the composite spring (25), and the total length of the round rod (210) and the cylinder (26) is slightly smaller than the total length of the composite spring (25).
5. The excavator chassis bracket according to claim 4, characterized in that: A metal sheet (211) is fixedly connected to one side of the rectangular plate (31), and the metal sheet (211) is located outside the pressure sensor (28).
6. The excavator chassis bracket according to claim 5, characterized in that: The outer surface of the rectangular plate (31) is provided with a plurality of through holes (32), the inner walls of the through holes (32) are slidably inserted with bolts (33), and the two sides of the frame (1) are provided with a plurality of threaded holes (34), the outer surfaces of the bolts (33) are threadedly connected to the inner walls of the threaded holes (34).
7. The excavator chassis bracket according to claim 6, characterized in that: A plurality of elastic ropes (35) are fixedly connected to one side of the rectangular plate (31), and one end of the elastic rope (35) away from the rectangular plate (31) is fixedly connected to one end of the bolt (33).
8. The excavator chassis bracket according to claim 6, characterized in that: Two positioning rods (36) are fixedly connected to one side of the frame (1), and the distance between the two positioning rods (36) is slightly greater than the height of the rectangular plate (31).