Frame structure and excavator

Abstract

The utility model provides a frame structure and an excavator, and relates to the technical field of frame structures, the frame structure comprises a center frame on an excavator main body, a walking beam is arranged on one side of the center frame, a crawler belt is arranged on one side of the walking beam, a pushing and removing device is arranged on one side of the center frame, and the pushing and removing device comprises a cylindrical rod. The pushing and removing device is arranged on the center frame, a connecting device is arranged between the cylindrical rod and the center frame, a cylinder is arranged on the surface of the cylindrical rod in a sleeving mode, and a spring is arranged in the cylinder. Stone and sundries accumulated on the ground can be pushed to the two sides through the pushing and removing device, so that the stone and the sundries accumulated on the ground are separated from the center frame; the situation that a control oil pipe in the center frame and the surface of the center frame are collided and damaged due to the fact that stones and sundries accumulated on the ground enter the center frame in the moving process of the excavator body is reduced, the service life of the center frame is prolonged, and the safety of the control oil pipe in the center frame is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle frame structures, in particular to a vehicle frame structure and an excavator. Background Art

[0002] Excavators can be divided into crawler excavators and wheeled excavators based on their travel methods. The travel mechanism of a crawler excavator primarily consists of a lower frame, drive wheels, guide wheels, a tensioning device, and crawler tracks. Its function is to support the excavator's weight and convert the power transmitted by the drive wheels into traction, enabling the entire machine to travel. The lower frame, as the supporting structure of the entire travel mechanism, directly affects the machine's travel performance and lifespan.

[0003] The existing excavator underframe structure mostly adopts the method of welding two walking beams, one on the left and one on the right, to the center frame, and then assembling drive wheels, guide wheels, tensioning devices, crawler tracks and other components on the two walking beams. Then, the entire underframe is assembled with the bottom of the excavator to realize the load-bearing and travel of the excavator.

[0004] However, due to the complex ground environment in which the excavator operates, stones and debris accumulated on the ground may enter the center frame during the movement of the excavator, causing the control oil pipe inside the center frame and the center frame surface to be damaged by collision, affecting the normal control of the walking mechanism and the service life of the center frame. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings in the prior art and to propose a frame structure and an excavator.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a frame structure and an excavator, comprising a center frame on the excavator body, a walking beam is provided on one side of the center frame, a crawler is provided on one side of the walking beam, a pushing device is provided on one side of the center frame, the pushing device comprises a cylindrical rod, a connecting device is provided between the cylindrical rod and the center frame, a cylinder is provided on the surface of the cylindrical rod, a spring is provided inside the cylinder, one end of the spring is fixedly connected to the inner wall of the cylinder, and the other end of the spring is fixedly connected to the cylindrical rod, one side of the cylinder is fixedly connected to a connecting rod, one side of the connecting rod is fixedly connected to a triangular plate, and a side of the triangular plate away from the center frame is fixedly connected to multiple rollers.

[0007] The effect achieved by the above components is as follows: by setting a pushing device, the triangular plate is first assembled with the center frame through the connecting device. At this time, under the reaction force of the spring, the spring pushes the cylinder to move in the direction away from the center frame, so that the cylinder drives the connecting rod to move in the direction away from the center frame, so that the connecting rod drives the triangular plate to move in the direction away from the center frame, so that the triangular plate drives multiple rollers to move in the direction away from the center frame. When the multiple rollers move to a position in contact with the ground, the triangular plate moves to a position close to the ground and pushes the stones and debris accumulated on the ground to both sides during the movement of the excavator body, so that the stones and debris accumulated on the ground are separated from the center frame, thereby protecting the center frame and its internal control oil pipe, reducing the stones and debris accumulated on the ground during the movement of the excavator body from entering the center frame, causing the control oil pipe inside the center frame and the center frame surface to be damaged by collision, thereby improving the service life of the center frame and the safety of the control oil pipe inside the center frame.

[0008] Preferably, a plurality of reinforcing ribs are fixedly connected to the surface of the triangular plate, and the plurality of reinforcing ribs are arranged at equal distances.

[0009] The effect achieved by the above components is: by setting the reinforcing ribs, the reinforcing ribs can increase the strength of the triangle plate, reducing the collision of the triangle plate with debris and stones during use and causing deformation and breakage.

[0010] Preferably, a baffle is fixedly connected to one side of the triangular plate close to the tip, and the surface of the baffle is larger than the roller.

[0011] The effect achieved by the above components is: by setting the baffle, the baffle can block external debris and stones, reducing the direct collision between the roller and the stones and debris on the ground and reducing damage.

[0012] Preferably, the inner wall of the triangular plate is fixedly connected to a support rod, both ends of the support rod are fixedly connected to rubber blocks, both rubber blocks are fixedly connected to the inner wall of the triangular plate, and the support rod is fixedly connected to the connecting rod.

[0013] The effect achieved by the above components is: by setting the support rod and the rubber block, the support rod and the rubber block can provide auxiliary support to the inner side of the triangle plate, reducing the triangle plate from large deformation and breakage during use, and further improving the stability of the triangle plate.

[0014] Preferably, a limiting block is fixedly connected to the inner wall of the cylinder, a limiting groove is provided on one side of the cylindrical rod, and the surface of the limiting block is slidably connected to the inner wall of the limiting groove.

[0015] The effect achieved by the above components is: by arranging the limit block and the limit groove, the limit block can be located inside the limit groove to assist in limiting the cylinder, thereby reducing the rotation or shaking of the cylinder during use.

[0016] Preferably, the connecting device includes a circular hole ring, which is fixedly connected to the center frame, and the inner wall of the circular hole ring is provided with a screw, and one end of the screw is fixedly connected to a circular hole block, and the surface of the circular hole block is larger than the inner wall of the circular hole ring, and the surface of the screw is threadedly connected to the screw hole ring, and the surface of the screw hole ring is larger than the inner wall of the circular hole ring, and one side of the cylindrical rod is fixedly connected to a circular hole column, and the surface of the circular hole column is slidably connected to the inner wall of the circular hole ring, and the surface size and shape of the screw are adapted to the size and shape of the inner wall of the circular hole column, and one side of the circular hole ring is fixedly connected to a positioning rod, and the surface of the positioning rod is slidably connected to the inner wall of the circular hole block.

[0017] The effect achieved by the above components is as follows: by setting a connecting device, first manually move the cylindrical rod so that the cylindrical rod drives the circular hole column to move. When the circular hole column moves to a position where it is fully inserted into the internal position of the circular hole ring, the inner wall of the circular hole column coincides with the inner wall of the circular hole ring. At this time, manually move the circular hole block so that the circular hole block drives the screw to move. When the screw moves to an internal position where it is fully inserted into the circular hole ring and the circular hole column, the positioning rod is inserted into the circular hole block and limits the circular hole block and the screw. At this time, manually rotate the screw hole ring so that the screw hole ring moves left and right along the surface of the screw. When the screw hole ring moves to a position that extrudes the surface of the circular hole ring, the screw is limited and the position of the circular hole column and the cylindrical rod is fixed, thereby achieving assembly between the pushing device and the center frame. At the same time, the pushing device can be conveniently disassembled later, which improves the use flexibility of the pushing device and the convenience of later maintenance.

[0018] Preferably, a reinforcement block is fixedly connected to one side of the circular hole ring, and the reinforcement block is fixedly connected to the center frame.

[0019] The effect achieved by the above components is: by arranging the reinforcement block, the reinforcement block can increase the connection strength between the circular hole ring and the center frame, reducing the situation where the circular hole ring is separated from the center frame due to stress.

[0020] Preferably, the excavator adopts the excavator body with the above-mentioned frame structure.

[0021] Compared with the prior art, the advantages and positive effects of the present invention are:

[0022] The utility model can push the stones and debris accumulated on the ground to both sides by arranging the pushing and removing device, so that the stones and debris accumulated on the ground are separated from the center frame, thereby reducing the stones and debris accumulated on the ground from entering the center frame during the movement of the excavator body, causing the control oil pipe inside the center frame and the center frame surface to be damaged by collision, thereby improving the service life of the center frame and the safety of the control oil pipe inside the center frame. 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 partial structure of the triangular plate of the utility model;

[0025] Figure 3 This is a schematic diagram of the partial structure of the cylinder of the utility model;

[0026] Figure 4 It is a partial structural diagram of the circular hole ring of the utility model.

[0027] Legend: 1. Center frame; 2. Walking beam; 3. Crawler; 4. Excavator body; 5. Pusher device; 51. Cylindrical rod; 52. Cylinder; 53. Spring; 54. Limiting groove; 55. Limiting block; 56. Connecting rod; 57. Triangular plate; 58. Roller; 59. Reinforcement rib; 510. Support rod; 511. Rubber block; 512. Baffle; 6. Connecting device; 61. Circular hole ring; 62. Screw; 63. Circular hole block; 64. Screw hole ring; 65. Positioning rod; 66. Reinforcement block; 67. Circular hole column. DETAILED DESCRIPTION

[0028] Reference Figure 1-4As shown, this embodiment discloses a frame structure and an excavator, including a center frame 1 on an excavator body 4, a walking beam 2 is provided on one side of the center frame 1, a crawler 3 is provided on one side of the walking beam 2, a pushing device 5 is provided on one side of the center frame 1, and the pushing device 5 includes a cylindrical rod 51, a connecting device 6 is provided between the cylindrical rod 51 and the center frame 1, a cylinder 52 is provided on the surface of the cylindrical rod 51, a spring 53 is provided inside the cylinder 52, one end of the spring 53 is fixedly connected to the inner wall of the cylinder 52, and the other end of the spring 53 is fixedly connected to the cylindrical rod 51, and a connecting rod 56 is fixedly connected to one side of the cylinder 52, and a triangular plate 57 is fixedly connected to one side of the connecting rod 56, and a plurality of rollers 58 are fixedly connected to the side of the triangular plate 57 away from the center frame 1. By setting the pushing device 5, the triangular plate 57 is first assembled with the center frame 1 through the connecting device 6. At this time, under the reaction force of the spring 53, the spring 53 is The cylinder 52 is pushed to move in the direction away from the center frame 1, so that the cylinder 52 drives the connecting rod 56 to move in the direction away from the center frame 1, so that the connecting rod 56 drives the triangular plate 57 to move in the direction away from the center frame 1, so that the triangular plate 57 drives multiple rollers 58 to move in the direction away from the center frame 1. When the multiple rollers 58 move to a position in contact with the ground, the triangular plate 57 moves to a position close to the ground and pushes the stones and debris accumulated on the ground to both sides during the movement of the excavator body 4, so that the stones and debris accumulated on the ground are separated from the center frame 1, thereby protecting the center frame 1 and its internal control oil pipe, reducing the stones and debris accumulated on the ground during the movement of the excavator body 4 from entering the center frame 1, causing the control oil pipe inside the center frame 1 and the surface of the center frame 1 to be damaged by collision, thereby improving the service life of the center frame 1 and the safety of the control oil pipe inside the center frame 1.

[0029] Reference Figure 2 and Figure 3 As shown, this embodiment discloses that a plurality of reinforcing ribs 59 are fixedly connected to the surface of the triangular plate 57, and the plurality of reinforcing ribs 59 are arranged at equal distances. By arranging the reinforcing ribs 59, the reinforcing ribs 59 can increase the strength of the triangular plate 57, and reduce the collision with debris and stones during use and the deformation and fracture of the triangular plate 57. A baffle 512 is fixedly connected to the side of the triangular plate 57 close to the tip, and the surface of the baffle 512 is larger than the roller 58. By arranging the baffle 512, the baffle 512 can block external debris and stones, and reduce the direct collision of the roller 58 with stones and debris on the ground and the damage.

[0030] Reference Figure 2 and Figure 3As shown, this embodiment discloses that the inner wall of the triangle plate 57 is fixedly connected to a support rod 510, and both ends of the support rod 510 are fixedly connected to rubber blocks 511. The two rubber blocks 511 are fixedly connected to the inner wall of the triangle plate 57, and the support rod 510 is fixedly connected to the connecting rod 56. By arranging the support rod 510 and the rubber block 511, the support rod 510 cooperates with the rubber block 511 to auxiliary support the inner side of the triangle plate 57, thereby reducing the situation where the triangle plate 57 is deformed to a large extent and breaks during use, and further improving the stability of the use of the triangle plate 57. The inner wall of the cylinder 52 is fixedly connected to the limiting block 55, and a limiting groove 54 is provided on one side of the cylindrical rod 51. The surface of the limiting block 55 is slidably connected to the inner wall of the limiting groove 54. By arranging the limiting block 55 and the limiting groove 54, the limiting block 55 can be located inside the limiting groove 54 to assist in limiting the cylinder 52, thereby reducing the situation where the cylinder 52 rotates or shakes during use.

[0031] Reference Figure 3 and Figure 4 As shown, this embodiment discloses a connecting device 6 including a circular hole ring 61, which is fixedly connected to the center frame 1, and a screw 62 is provided on the inner wall of the circular hole ring 61, and one end of the screw 62 is fixedly connected to a circular hole block 63, and the surface of the circular hole block 63 is larger than the inner wall of the circular hole ring 61, and the surface of the screw 62 is threadedly connected to the screw hole ring 64, and the surface of the screw hole ring 64 is larger than the inner wall of the circular hole ring 61, and a circular hole column 67 is fixedly connected to one side of the cylindrical rod 51, and the surface of the circular hole column 67 is slidably connected to the inner wall of the circular hole ring 61, and the surface size and shape of the screw 62 are adapted to the size and shape of the inner wall of the circular hole column 67, and a positioning rod 65 is fixedly connected to one side of the circular hole ring 61, and the surface of the positioning rod 65 is slidably connected to the inner wall of the circular hole block 63. By setting the connecting device 6, first manually move the cylindrical rod 51 so that the cylindrical rod 51 drives the circular hole column 67 to move, and when When the circular hole column 67 moves to a position where it is fully inserted into the internal position of the circular hole ring 61, the inner wall of the circular hole column 67 coincides with the inner wall of the circular hole ring 61. At this time, the circular hole block 63 is manually moved, so that the circular hole block 63 drives the screw 62 to move. When the screw 62 moves to an internal position where it is fully inserted into the circular hole ring 61 and the circular hole column 67, the positioning rod 65 is inserted into the circular hole block 63 and limits the circular hole block 63 and the screw 62. At this time, the screw hole ring 64 is manually rotated, so that the screw hole ring 64 moves left and right along the surface of the screw 62. When the screw hole ring 64 moves to a position that squeezes the surface of the circular hole ring 61, the screw 62 is limited and the circular hole column 67 and the cylindrical rod 51 are fixed in position, thereby achieving the assembly between the pushing device 5 and the center frame 1. At the same time, the pushing device 5 can be conveniently disassembled later, which improves the use flexibility of the pushing device 5 and the convenience of later maintenance.

[0032] Reference Figure 3 and Figure 4As shown, this embodiment discloses that a reinforcement block 66 is fixedly connected to one side of the circular hole ring 61, and the reinforcement block 66 is fixedly connected to the center frame 1. By setting the reinforcement block 66, the reinforcement block 66 can increase the connection strength between the circular hole ring 61 and the center frame 1, and reduce the situation where the circular hole ring 61 is separated from the center frame 1 due to the force applied to it.

[0033] Working principle: First, the two walking beams 2 are welded and fixed to the center frame 1, one on the left and one on the right. Then, the driving wheels, guide wheels, tensioning devices, crawler tracks 3 and other components are assembled on the two walking beams 2. Then, the entire lower frame is assembled with the bottom of the excavator to realize the bearing of the excavator body 4 and the movement of the entire machine.

[0034] First, manually move the cylindrical rod 51 so that the cylindrical rod 51 drives the circular hole column 67 to move. When the circular hole column 67 moves to a position where it is fully inserted into the internal position of the circular hole ring 61, the inner wall of the circular hole column 67 coincides with the inner wall of the circular hole ring 61. At this time, manually move the circular hole block 63 so that the circular hole block 63 drives the screw 62 to move. When the screw 62 moves to a position where it is fully inserted into the internal position of the circular hole ring 61 and the circular hole column 67, the positioning rod 65 is inserted into the circular hole block 63 and limits the circular hole block 63 and the screw 62. At this time, manually rotate the screw hole ring 64 so that the screw hole ring 64 moves left and right along the surface of the screw 62. When the screw hole ring 64 moves to a position where it squeezes the surface of the circular hole ring 61, the screw 62 is limited and the circular hole column 67 and the cylindrical rod 51 are fixed in position. Then, the assembly between the pushing device 5 and the center frame 1 is achieved. At this time, under the reaction force of the spring 53, the spring 53 pushes the cylinder 52 to move away from the center frame 1, so that the cylinder 52 drives the connecting rod 56 to move away from the center frame 1, so that the connecting rod 56 drives the triangular plate 57 to move away from the center frame 1, so that the triangular plate 57 drives multiple rollers 58 to move away from the center frame 1. When the multiple rollers 58 move to a position in contact with the ground, the triangular plate 57 moves to a position close to the ground and pushes the stones and debris accumulated on the ground to both sides during the movement of the excavator body 4, so that the stones and debris accumulated on the ground are separated from the center frame 1, thereby protecting the center frame 1 and its internal control oil pipe.

[0035] 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. A frame structure and an excavator, comprising a center frame (1) on an excavator body (4), characterized in that: A walking beam (2) is provided on one side of the center frame (1), a crawler (3) is provided on one side of the walking beam (2), a pushing device (5) is provided on one side of the center frame (1), the pushing device (5) comprises a cylindrical rod (51), a connecting device (6) is provided between the cylindrical rod (51) and the center frame (1), a cylinder (52) is sleeved on the surface of the cylindrical rod (51), a spring (53) is provided inside the cylinder (52), one end of the spring (53) is fixedly connected to the inner wall of the cylinder (52), and the other end of the spring (53) is fixedly connected to the cylindrical rod (51), one side of the cylinder (52) is fixedly connected to a connecting rod (56), one side of the connecting rod (56) is fixedly connected to a triangular plate (57), and a side of the triangular plate (57) away from the center frame (1) is fixedly connected to a plurality of rollers (58).

2. The frame structure and excavator according to claim 1, characterized in that: A plurality of reinforcing ribs (59) are fixedly connected to the surface of the triangular plate (57), and the plurality of reinforcing ribs (59) are arranged at equal distances.

3. The frame structure and excavator according to claim 1, characterized in that: A baffle (512) is fixedly connected to one side of the triangular plate (57) close to the tip, and the surface of the baffle (512) is larger than that of the roller (58).

4. The frame structure and excavator according to claim 1, characterized in that: The inner wall of the triangular plate (57) is fixedly connected to a support rod (510), both ends of the support rod (510) are fixedly connected to rubber blocks (511), and both rubber blocks (511) are fixedly connected to the inner wall of the triangular plate (57), and the support rod (510) is fixedly connected to the connecting rod (56).

5. The frame structure and excavator according to claim 1, characterized in that: The inner wall of the cylinder (52) is fixedly connected to a limiting block (55), one side of the cylindrical rod (51) is provided with a limiting groove (54), and the surface of the limiting block (55) is slidably connected to the inner wall of the limiting groove (54).

6. The vehicle frame structure and excavator according to claim 1, characterized in that: The connecting device (6) comprises a circular hole ring (61), the circular hole ring (61) is fixedly connected to the center frame (1), the inner wall of the circular hole ring (61) is provided with a screw rod (62), one end of the screw rod (62) is fixedly connected to a circular hole block (63), the surface of the circular hole block (63) is larger than the inner wall of the circular hole ring (61), the surface of the screw rod (62) is threadedly connected to a screw hole ring (64), the surface of the screw hole ring (64) is larger than the circular hole The inner wall of the ring (61), one side of the cylindrical rod (51) is fixedly connected to a circular hole column (67), the surface of the circular hole column (67) is slidably connected to the inner wall of the circular hole ring (61), the surface size and shape of the screw rod (62) are adapted to the size and shape of the inner wall of the circular hole column (67), one side of the circular hole ring (61) is fixedly connected to a positioning rod (65), the surface of the positioning rod (65) is slidably connected to the inner wall of the circular hole block (63).

7. The frame structure and excavator according to claim 6, characterized in that: A reinforcement block (66) is fixedly connected to one side of the circular hole ring (61), and the reinforcement block (66) is fixedly connected to the center frame (1).

8. Excavator, characterized by: The frame structure according to any one of claims 1 to 7 is adopted.

Images