A leg matching strengthener for a wheeled excavator

Abstract

The present invention belongs to the technical field of excavators, and particularly relates to a leg matching strengthener for a wheeled excavator. The purpose of the present invention is to provide a leg matching strengthener for a wheeled excavator that can perform interlocking protection on the legs. The present invention provides such a leg matching strengthener for a wheeled excavator, which includes a hydraulic leg, a support rod, and a support assembly. Support rods are arranged on both sides of the hydraulic leg. The hydraulic leg can be activated to drive the support rod to move up and down. A support assembly is provided on the support rod. It also includes a controller and a fixed frame. The controller is installed on the hydraulic leg, and the fixed frame is installed at the control lever of the excavator. When the two support plates do not move to contact the ground, the present invention can lock the control lever, and after the two support plates move to contact the ground, the control lever is released, so as to avoid premature damage to the chassis components caused by insufficient or untimely support and then operating the excavator for excavation operations, reducing the stability of the equipment chassis.

Description

Technical Field

[0001] The invention belongs to the technical field of excavators, and particularly relates to a leg matching strengthener for a wheeled excavator. Background Art

[0002] During the construction operation of an excavator, its operation environment is relatively harsh and the working conditions are relatively complex. The operation site of an excavator is different from other equipment. Most of the operations are carried out on relatively bumpy sites, which have a certain impact on the equipment chassis and internal structural parts. Moreover, the operation nature of an excavator is excavation operation. The direction of the impact load borne by the chassis is more than that of other equipment such as bulldozers. Therefore, a supporting device is needed to support the excavator.

[0003] The existing wheeled excavators usually use legs for support during operation. However, the excavator is not equipped with a leg interlock protection function. This easily leads to the situation that when the legs have not yet supported the ground, the construction workers operate to carry out the construction operation, resulting in the legs not being supported in place or in a timely manner during equipment operation, causing damage to the chassis components and reducing the stability of the equipment chassis. Summary of the Invention

[0004] In view of this, the invention provides a leg matching strengthener for a wheeled excavator that can perform interlock protection on the legs.

[0005] The technical solution of the invention is: a leg matching strengthener for a wheeled excavator, which includes a hydraulic leg, a support rod, and a support assembly. Support rods are arranged on both sides of the hydraulic leg. The start of the hydraulic leg can drive the support rod to move up and down. A support assembly is provided on the support rod. It also includes a controller, a fixed frame, a locking block, a clamping mechanism, and an opening mechanism. The controller is installed on the hydraulic leg. The fixed frame is installed at the control lever of the excavator. Locking blocks are slidably connected to both sides of the fixed frame. The locking blocks are used to lock the control lever of the excavator. A clamping mechanism is provided on the fixed frame. The clamping mechanism is used to lock the locking blocks. An opening mechanism is provided between the fixed frame and the locking blocks for controlling the opening of the locking blocks.

[0006] Further, the support assembly includes a support plate and a first elastic member. The bottom of the support rod is rotatably connected to the support plate. The support plate moves down to abut against the ground to play a supporting role. A first elastic member is connected between the support plate and the support rod to reset the support plate through elasticity.

[0007] Further, the clamping mechanism includes a cylinder, a clamping frame, and proximity switches. Two cylinders are installed in the fixed frame body. The cylinders are electrically connected to the controller. Clamping frames are connected to the telescopic rods of both cylinders. The clamping frames are slidably engaged with the fixed frame body. The clamping frames are used to clamp the locking blocks. Proximity switches are installed on both support plates. The proximity switches are electrically connected to the controller. The two proximity switches are respectively electrically connected to the two cylinders through the controller, so that when the support plates come into contact with the ground for support, the cylinders are controlled to start.

[0008] Further, the opening mechanism includes a first magnet and a second magnet. First magnets are embedded on the mutually remote sides of the two locking blocks. Second magnets are connected to both sides inside the fixed frame body. The two second magnets are respectively used to drive the two first magnets to move through magnetic attraction.

[0009] Further, the magnets used for the first magnet and the second magnet are both permanent magnets to ensure the magnetism after the long-term use of the first magnet and the second magnet.

[0010] Further, a buffer block is also included. Buffer blocks are connected to the mutually remote sides of the two locking blocks. The buffer blocks cover the first magnets to play a buffering role when the first magnets collide with the second magnets through magnetic attraction, so as to prevent the first magnets or the second magnets from being damaged.

[0011] Further, a cleaning mechanism is also included. The cleaning mechanism includes a sliding block, a cleaning brush, a second elastic member, and an extrusion block. Sliding blocks are slidably connected to both sides of the top of the support plate. A cleaning brush is rotatably connected between the two sliding blocks on both sides. The movement of the cleaning brush can sweep away the stones on the ground below the support plate. A second elastic member is connected between the cleaning brush and the sliding block to reset the cleaning brush through elasticity. An extrusion block is connected to the top of the support plate. The extrusion block is located on the movement track of the cleaning brush. After the cleaning brush moves, it is squeezed by the extrusion block and rotates and is no longer located below the support plate, so as to prevent the cleaning brush from hindering the movement of the support plate.

[0012] Further, a pulling assembly is also included. The pulling assembly includes a connecting block, a pulling rope, a wire pulley, and a third elastic member. Connecting blocks are connected to the lower parts of both sides of the hydraulic support leg. A wire pulley is installed on the support plate. A pulling rope is connected to the connecting block. The pulling rope bypasses the wire pulley and is connected to the sliding block. A third elastic member is connected between the sliding block and the support plate.

[0013] The beneficial effects are as follows:

[0014] 1. When the two support plates of the present invention do not move to contact the ground, the control lever can be locked, and after the two support plates move to contact the ground, the control lever is released, so as to prevent the support from being insufficient or untimely, and then operating the excavator to perform excavation operations, resulting in premature damage to the chassis components and reducing the stability of the equipment chassis, thereby playing a role in interlocking protection for the support legs.

[0015] 2. When the support plate moves downward, the present invention can drive the cleaning brush to move to sweep the gravel on the ground, so as to avoid the gravel from hindering the supporting effect of the support plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structure diagram of the present invention.

[0017] Figure 2 It is a three-dimensional structure diagram of the support part of the present invention.

[0018] Figure 3 It is a three-dimensional structure diagram of the operation part of the present invention.

[0019] Figure 4 It is a partial three-dimensional structure diagram of the fixed frame and the locking block of the present invention.

[0020] Figure 5 It is a three-dimensional structure diagram of the clamping mechanism and the opening mechanism of the present invention.

[0021] Figure 6 It is a schematic diagram of the connection relationship between a part of the clamping mechanism of the present invention and other components.

[0022] Figure 7 It is a schematic diagram of the connection relationship between the proximity switch of the present invention and other components.

[0023] Figure 8 It is a partial three-dimensional structure diagram of the clamping mechanism of the present invention.

[0024] Figure 9 It is a schematic diagram of the connection relationship between the opening mechanism of the present invention and other components.

[0025] Figure 10 It is a schematic diagram of the connection relationship between the cleaning mechanism and the pulling assembly of the present invention and other components.

[0026] Figure 11 It is a three-dimensional structure diagram of the cleaning mechanism, the pulling assembly and the support plate of the present invention.

[0027] Names and serial numbers of components in the figure: 1 - hydraulic leg, 11 - support rod, 2 - controller, 3 - support plate, 4 - first elastic member, 6 - fixed frame, 7 - locking block, 8 - clamping mechanism, 81 - cylinder, 82 - clamping frame, 83 - proximity switch, 9 - opening mechanism, 91 - first magnet, 92 - second magnet, 93 - buffer block, 10 - cleaning mechanism, 101 - sliding block, 102 - cleaning brush, 103 - second elastic member, 104 - extrusion block, 12 - pulling assembly, 120 - connecting block, 121 - pulling rope, 122 - wire pulley, 123 - third elastic member, 100 - joystick. DETAILED DESCRIPTION OF THE INVENTION

[0028] The present invention will be specifically introduced below in conjunction with the accompanying drawings and specific embodiments.

[0029] Embodiment 1

[0030] A leg matching strengthener for a wheeled excavator, as Figures 1-5 shown, includes a hydraulic leg 1, a support rod 11, a controller 2, a fixed frame 6, a support assembly, a locking block 7, a clamping mechanism 8 and an opening mechanism 9. Support rods 11 are arranged at the lower parts on both the front and rear sides of the hydraulic leg 1. A support assembly is provided on the support rod 11. The start of the hydraulic leg 1 can drive the support rod 11 to move up and down. A controller 2 is installed on the hydraulic leg 1. The fixed frame 6 is installed at the control lever 100 of the excavator. Locking blocks 7 are slidably connected to both the left and right sides of the fixed frame 6. The locking blocks 7 are used to lock the locking blocks 7 of the excavator. A clamping mechanism 8 is provided on the fixed frame 6. The clamping mechanism 8 is used to lock the control lever 100. An opening mechanism 9 is provided between the fixed frame 6 and the locking block 7 for controlling the opening of the locking block 7.

[0031] As Figure 2 shown, the support assembly includes a support plate 3 and a first elastic member 4. The bottoms of two support rods 11 are rotatably connected to the support plate 3. The support plate 3 moves down to abut against the ground to play a supporting role. Two first elastic members 4 are connected between the support plate 3 and the support rod 11 to reset the support plate 3 elastically.

[0032] As Figures 6-8 shown, the clamping mechanism 8 includes an air cylinder 81, a clamping frame 82 and a proximity switch 83. Two air cylinders 81 are installed in the fixed frame 6. The air cylinders 81 are electrically connected to the controller 2. Clamping frames 82 are connected to the telescopic rods of the two air cylinders 81. The clamping frames 82 are slidably matched with the fixed frame 6. The clamping frames 82 are used to clamp the locking blocks 7. Proximity switches 83 are installed on both support plates 3. The sensing distance of the proximity switch 83 is equal to the distance between the proximity switch 83 and the bottom of the support plate 3. The proximity switches 83 are electrically connected to the controller 2. The two proximity switches 83 are respectively electrically connected to the two air cylinders 81 through the controller 2 so that when the support plate 3 contacts the ground for support, the air cylinders 81 are controlled to start.

[0033] As Figure 9 shown, the opening mechanism 9 includes a first magnet 91 and a second magnet 92. First magnets 91 are embedded on the sides of the two locking blocks 7 away from each other. Second magnets 92 are connected to the front and rear sides inside the fixed frame 6. The two second magnets 92 are respectively used to drive the two first magnets 91 to move through magnetic attraction. The magnets used for the first magnet 91 and the second magnet 92 are both permanent magnets to ensure the magnetism of the first magnet 91 and the second magnet 92 after long-term use.

[0034] When the wheeled excavator is performing excavation operations, this intensifier can be used. Before use, the locking block 7 locks the control lever 100, and at this time, the control lever 100 cannot be operated. First, start the hydraulic outrigger 1 to drive the support rod 11 to move downward, thereby driving the support plate 3 to move downward until it contacts the ground. When both support plates 3 move downward to contact the ground and play a supporting role, the distance between the two proximity switches 83 and the ground reaches the preset value. The controller 2 starts the telescopic rod of the cylinder 81 to retract. Before that, the telescopic rod of the cylinder 81 was in the extended state, and the clamping frame 82 clamped the locking block 7. When the telescopic rod of the cylinder 81 retracts, it drives the clamping frame 82 to move downward. After the clamping frame 82 moves downward, it no longer clamps the locking block 7. At this time, under the action of the first magnet 91 and the second magnet 92, the two locking blocks 7 move away from each other and no longer clamp the control lever 100. The operator can then operate the control lever 100 to control the excavator bucket to perform excavation operations. If only one support plate 3 contacts the ground and the telescopic rod of the other cylinder 81 does not retract, there is still a clamping frame 82 that can clamp the locking block 7 to prevent the locking block 7 from shifting when there is still one support plate 3 that has not supported the ground, thereby playing a role in interlocking protection for the outrigger. When the support plate 3 contacts the ground, it can rotate according to the inclination angle or position of the ground so that the support plate 3 fits tightly against the ground to ensure stability during support.

[0035] Embodiment 2

[0036] Based on Embodiment 1, as Figure 9 shown, it further includes a buffer block 93. Buffer blocks 93 are connected to the sides of the two locking blocks 7 that move away from each other. The buffer block 93 covers the first magnet 91 to play a buffering role when the first magnet 91 collides with the second magnet 92 by magnetic attraction, so as to prevent the first magnet 91 or the second magnet 92 from being damaged.

[0037] As Figure 1 、 Figure 10 and Figure 11 shown, it further includes a sweeping mechanism 10. The sweeping mechanism 10 includes a sliding block 101, a sweeping brush 102, a second elastic member 103, and an extrusion block 104. The front and rear sides of the top of the support plate 3 are both slidably connected with sliding blocks 101. A sweeping brush 102 is rotatably connected between the two sliding blocks 101. The movement of the sweeping brush 102 can sweep the stones on the ground below the support plate 3. Two second elastic members 103 are connected between the sweeping brush 102 and the sliding block 101 to reset the sweeping brush 102 by elasticity. Two extrusion blocks 104 are connected to the left side of the top of the support plate 3. The extrusion blocks 104 are located on the movement track of the sweeping brush 102. After the sweeping brush 102 moves, it is squeezed and rotated by the extrusion blocks 104 and no longer located below the support plate 3, so as to prevent the sweeping brush 102 from hindering the movement of the support plate 3.

[0038] When the support plate 3 moves downward, it can pull the sweeping brush 102 to move leftward to sweep the stones on the ground. When the sweeping brush 102 moves to contact the extrusion block 104, the sweeping brush 102 continues to move and is squeezed and rotated by the extrusion block 104. After the sweeping brush 102 rotates, it is no longer located below the support plate 3, avoiding the sweeping brush 102 from hindering the downward movement of the support plate 3.

[0039] As Figure 1 , Figure 10 and Figure 11 shown, it further includes a pulling assembly 12. The pulling assembly 12 includes a connecting block 120, a pulling rope 121, a wire guiding wheel 122 and a third elastic member 123. Two connecting blocks 120 are connected to the lower parts on the front and rear sides of the hydraulic leg 1. Two wire guiding wheels 122 are installed on the left side of the top of the support plate 3. A pulling rope 121 is connected to the connecting block 120. The pulling rope 121 bypasses the wire guiding wheel 122 and is connected to the sliding block 101. A third elastic member 123 is connected between the sliding block 101 and the support plate 3 to reset the sliding block 101 through elasticity.

[0040] When the support plate 3 moves downward, it will drive the sliding block 101 to move downward. When the sliding block 101 moves downward, the pulling rope 121 will pull the sliding block 101 to move leftward. The wire guiding wheel 122 guides the pulling rope 121, and the third elastic member 123 is compressed. The movement of the sliding block 101 drives the movement of the sweeping brush 102. In this way, there is no need for manual operation to pull the sweeping brush 102 to move.

[0041] The above has introduced the present application in detail. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application; at the same time, for those of ordinary skill in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A leg matching strengthener for a wheeled excavator, comprising a hydraulic leg (1), a support rod (11) and a support assembly. Support rods (11) are arranged on both sides of the hydraulic leg (1). Starting the hydraulic leg (1) can drive the support rod (11) to move up and down. A support assembly is provided on the support rod (11), and it is characterized in that: It also includes a controller (2), a fixed frame (6), a locking block (7), a clamping mechanism (8) and an opening mechanism (9). The controller (2) is installed on the hydraulic outrigger (1). The fixed frame (6) is installed at the control lever (100) of the excavator. Both sides of the fixed frame (6) are slidably connected with the locking blocks (7). The locking blocks (7) are used to lock the control lever (100) of the excavator. A clamping mechanism (8) is provided on the fixed frame (6), and the clamping mechanism (8) is used to lock the locking blocks (7). An opening mechanism (9) is provided between the fixed frame (6) and the locking blocks (7) for controlling the opening of the locking blocks (7); The support assembly includes a support plate (3) and a first elastic member (4). The bottom of the support rod (11) is rotatably connected with the support plate (3). The support plate (3) moves downward to abut against the ground to play a supporting role. A first elastic member (4) is connected between the support plate (3) and the support rod (11) to reset the support plate (3) elastically; The clamping mechanism (8) includes a cylinder (81), a clamping frame (82) and a proximity switch (83). Two cylinders (81) are installed in the fixed frame (6). The cylinders (81) are electrically connected to the controller (2). The telescopic rods of the two cylinders (81) are both connected with the clamping frame (82). The clamping frame (82) is slidably matched with the fixed frame (6). The clamping frame (82) is used to clamp the locking blocks (7). Proximity switches (83) are installed on both support plates (3). The proximity switches (83) are electrically connected to the controller (2). The two proximity switches (83) are respectively electrically connected to the two cylinders (81) through the controller (2) so that when the support plates (3) contact the ground for support, the cylinders (81) are controlled to start; The opening mechanism (9) includes a first magnet (91) and a second magnet (92). The first magnets (91) are embedded on the sides of the two locking blocks (7) away from each other. The second magnets (92) are connected to both sides inside the fixed frame (6). The two second magnets (92) are respectively used to drive the two first magnets (91) to move by magnetic attraction; The outrigger matching and strengthening device for the wheeled excavator also includes a sweeping mechanism (10). The sweeping mechanism (10) includes a sliding block (101), a sweeping brush (102), a second elastic member (103) and a pressing block (104). The two sides of the top of the support plate (3) are slidably connected with the sliding blocks (101). The sweeping brush (102) is rotatably connected between the two sliding blocks (101). The movement of the sweeping brush (102) can sweep the stones on the ground below the support plate (3). A second elastic member (103) is connected between the sweeping brush (102) and the sliding block (101) to reset the sweeping brush (102) elastically. A pressing block (104) is connected to the top of the support plate (3). The pressing block (104) is located on the movement track of the sweeping brush (102). After the sweeping brush (102) moves, it is squeezed by the pressing block (104) and rotates and is no longer located below the support plate (3) to prevent the sweeping brush (102) from hindering the movement of the support plate (3); The outrigger matching strengthener for the wheeled excavator further includes a pulling assembly (12). The pulling assembly (12) includes a connecting block (120), a pulling rope (121), a wire guiding wheel (122) and a third elastic member (123). Connecting blocks (120) are connected to the lower parts on both sides of the hydraulic outrigger (1). A wire guiding wheel (122) is installed on the support plate (3). A pulling rope (121) is connected to the connecting block (120). The pulling rope (121) bypasses the wire guiding wheel (122) and is connected to the sliding block (101). A third elastic member (123) is connected between the sliding block (101) and the support plate (3).

2. The leg matching strengthener for a wheeled excavator according to claim 1, characterized in that: Both the first magnet (91) and the second magnet (92) are permanent magnets, so as to ensure the magnetism of the first magnet (91) and the second magnet (92) after long-term use.

3. The leg matching strengthener for a wheeled excavator according to claim 1, characterized in that: It further includes a buffer block (93). Buffer blocks (93) are connected to the mutually remote sides of the two locking blocks (7). The buffer block (93) covers the first magnet (91), so as to play a buffering role when the first magnet (91) collides with the second magnet (92) by magnetic attraction, so as to prevent the first magnet (91) or the second magnet (92) from being damaged.

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