Anti-impact excavator bucket rod

Abstract

The utility model relates to the field of excavator bucket rods, and discloses an anti-collision excavator bucket rod which comprises a bucket rod body, a shock absorption assembly is arranged inside the bucket rod body, an anti-collision assembly is arranged outside the bucket rod body, the anti-collision assembly comprises a telescopic rod fixedly installed on the surface of the bucket rod body, and one end of the telescopic rod is connected with an anti-collision plate. The telescopic rods are sleeved with first buffer springs, guide rods are connected between the adjacent side walls of the telescopic rods, the guide rods are slidably sleeved with sliding sleeves, the portions, on the opposite sides of the sliding sleeves, of the guide rods are movably sleeved with second buffer springs, the outer portions of the sliding sleeves are fixedly connected with hinges, movable rods are rotationally connected to the hinges, and stand columns are installed on the portions, between the telescopic rods, of the anti-collision plate. According to the excavator bucket rod, the impact force of collision is relieved through the anti-collision assembly, the bucket rod body is prevented from being damaged, and the problems that an existing excavator bucket rod is not provided with a protection mechanism and is prone to being damaged after collision are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of excavator bucket arms, in particular to an anti-collision excavator bucket arm. Background Art

[0002] The dipper arm of an excavator is a working device of the excavator, usually located between the mechanical arm and the bucket. The main function of the dipper arm is to control the digging, loading and other actions of the bucket. One end of the dipper arm is connected to the forearm, and the other end is connected to the tipping arm. During the excavation operation, the dipper arm is subjected to a large excavation force, so its quality and strength need to meet higher requirements.

[0003] Chinese patent document CN106088186A discloses a bucket arm for an excavator, which belongs to the technical field of excavators. It includes a box body, and positioning ear plates are respectively arranged on both sides of the rear end of the box body. The two positioning ear plates and the top surface of the box body cooperate to form a pipeline channel. The positioning ear plates in the present invention cooperate with the top surface of the box body to form a pipeline channel. The hydraulic pipeline can pass through between the two positioning ear plates, which effectively avoids the collision of the hydraulic pipeline, prolongs the service life of the hydraulic pipeline, and makes the working performance of the excavator more reliable and stable. However, since the excavator bucket arm lacks a mechanism to protect its own structure, the excavator bucket arm will be damaged and deformed after a collision, and the bucket will produce violent vibrations when in contact with materials or the ground. Long-term vibration will definitely damage the bucket arm and reduce the service life of the bucket arm.

[0004] Therefore, in order to solve such problems, we propose an anti-collision excavator bucket arm. Utility Model Content

[0005] The purpose of the utility model is to provide an impact-resistant excavator boom, aiming to solve the problem in the above-mentioned background technology that the existing excavator boom lacks a protection mechanism, is easily damaged and deformed after a collision, and the vibration generated during work will damage the boom and reduce the service life of the boom.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an impact-resistant excavator boom, including a boom body, a shock-absorbing component is arranged inside the boom body, an anti-collision component is arranged outside the boom body, the anti-collision component includes a telescopic rod fixedly installed on the surface of the boom body, the end of the telescopic rod away from the boom body is connected with an anti-collision plate, the outer sleeve of the telescopic rod is provided with a buffer spring 1, a guide rod is connected between adjacent side walls of the telescopic rod, the outer sliding sleeve of the guide rod is connected with a sliding sleeve, the outer movable sleeve of the guide rod on the opposite side of the sliding sleeve is provided with a buffer spring 2, the outer part of the sliding sleeve is fixedly connected with a hinge, the hinge is rotatably connected with a movable rod, columns are installed on the anti-collision plate between the telescopic rods, a rotating rod is arranged between the columns, and the movable sleeve of the end of the movable rod away from the hinge is arranged on the outside of the rotating rod.

[0007] Preferably, a slide groove is provided on a side of the anti-collision plate away from the boom body, and a wedge is provided inside the slide groove.

[0008] Preferably, an arc-shaped strip is arranged on the outer side of the anti-collision plate, connecting blocks are arranged at both ends of the arc-shaped strip, and pulleys are arranged on the connecting blocks.

[0009] Preferably, the pulley is movably arranged inside the slide groove and rollingly arranged on the wedge block.

[0010] Preferably, the arc strip is an object made of rubber material.

[0011] Preferably, the shock absorbing assembly includes a fixed block arranged inside the boom body, a shock transmitting plate is connected to the fixed block, a connecting rod is arranged on the side of the shock transmitting plate close to the inner wall of the boom body, a shock absorbing cylinder is installed on the inner wall of the boom body, one end of the connecting rod away from the shock transmitting plate is slidably arranged inside the shock absorbing cylinder, a moving block is arranged at the end of the connecting rod inside the shock absorbing cylinder, the moving block is movably arranged inside the shock absorbing cylinder, a shock absorbing spring is arranged inside the shock absorbing cylinder, and one end of the shock absorbing spring is fixedly installed on the moving block.

[0012] The utility model has the following beneficial effects:

[0013] In the utility model, first, the anti-collision plate contacts the impact force and transmits it to the telescopic rod, which moves the compression buffer spring one to relieve the collision force, and at the same time, the movable rod transmits the force to the sliding sleeve to push the compression buffer spring two to unload the force, and the vibration is transmitted to the connecting rod through the vibration transmission plate, which pushes the moving block to compress the shock-absorbing spring to relieve the vibration of the bucket body itself. The device enables the excavator bucket to add a mechanism to protect its own structure, avoids the excavator bucket arm from being damaged or deformed after a collision, reduces the influence of vibration on the bucket arm caused by the contact between the bucket and the material or the ground, prevents long-term vibration from damaging the bucket arm, and extends the service life of the bucket arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional schematic diagram of an anti-collision excavator bucket arm proposed by the utility model;

[0015] Figure 2 A schematic plan view of an anti-collision excavator bucket arm proposed by the utility model;

[0016] Figure 3 It is a three-dimensional explosion schematic diagram of an anti-collision component in an anti-collision excavator bucket arm proposed by the utility model;

[0017] Figure 4 This is a schematic diagram of the internal structure of a slideway in an anti-collision excavator bucket arm proposed by the utility model;

[0018] Figure 5The utility model is a three-dimensional explosion schematic diagram of a shock-absorbing component in an impact-resistant excavator bucket arm.

[0019] Legend:

[0020] 1. Arm body; 2. Anti-collision assembly; 21. Telescopic rod; 22. Anti-collision plate; 23. Buffer spring 1; 24. Guide rod; 25. Sleeve; 26. Buffer spring 2; 27. Hinge; 28. Movable rod; 29. ​​Column; 210. Rotating rod; 3. Slide; 31. Wedge block; 4. Arc bar; 5. Connecting block; 6. Pulley; 7. Shock-absorbing assembly; 71. Fixed block; 72. Shock-transmitting plate; 73. Connecting rod; 74. Shock-absorbing cylinder; 75. Moving block; 76. Shock-absorbing spring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. The terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 directly connected, or indirectly connected through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] Reference Figure 1-5, an embodiment provided by the utility model: an anti-collision excavator bucket arm, comprising a bucket arm body 1, a shock absorbing component 7 is arranged inside the bucket arm body 1 to absorb the vibration generated when the bucket contacts the material or the ground, an anti-collision component 2 is arranged outside the bucket arm body 1, the anti-collision component 2 is wrapped around the four seats of the bucket arm body 1 to alleviate the impact force of the collision and avoid damage to the bucket arm body 1, the anti-collision component 2 comprises a telescopic rod 21 fixedly mounted on the surface of the bucket arm body 1, two telescopic rods 21 are symmetrically installed, one end of the telescopic rod 21 away from the bucket arm body 1 is connected to an anti-collision plate 22, the outer sleeve of the telescopic rod 21 is provided with a buffer spring 23, one end of the buffer spring 23 is fixedly connected to the anti-collision plate 22, and the other end of the buffer spring 23 is fixedly mounted on the bucket arm body 1, a guide rod 24 is connected between adjacent side walls of the telescopic rod 21, and the outer sliding sleeve of the guide rod 24 is connected to two sliding sleeves 25, and the guide sleeves 25 on the opposite sides of the two sliding sleeves 25 are connected to the guide sleeves 26. A buffer spring 26 is provided on the outer movable sleeve of the rod 24, one end of which is fixedly mounted on the telescopic rod 21, and the other end of which is connected to the sliding sleeve 25. A hinge 27 is fixedly connected to the outside of the sliding sleeve 25, and a movable rod 28 is rotatably connected to the hinge 27. A group of columns 29 are installed on the anti-collision plate 22 between the telescopic rods 21, and two rotating rods 210 are symmetrically arranged between a group of columns 29. One end of the movable rod 28 away from the hinge 27 is movably sleeved on the outside of the rotating rod 210. When the excavator boom is collided, the anti-collision plate 22 contacts the impact force and transmits it to the telescopic rod 21. The telescopic rod 21 moves to compress the buffer spring 23 to relieve part of the collision force. At the same time, the anti-collision plate 22 transmits the impact force to the sliding sleeve 25 through the movable rod 28. The sliding sleeve 25 is forced to move along the guide rod 24, pushing the compressed buffer spring 26, so as to unload the force and avoid direct contact and collision of the boom body 1 to cause damage.

[0024] A slide groove 3 is provided on one side of the anti-collision plate 22 away from the boom body 1. Two slide grooves 3 are symmetrically arranged. Wedge blocks 31 are arranged inside the slide grooves 3. Multiple groups of wedge blocks 31 are installed continuously to increase friction and form a deceleration device.

[0025] An arc-shaped strip 4 is arranged on the outer side of the anti-collision plate 22, and connecting blocks 5 are arranged at both ends of the arc-shaped strip 4. A pulley 6 is arranged on the connecting block 5. The pulley 6 is movably arranged inside the slide groove 3 and rollingly arranged on the wedge block 31. When a collision occurs, the arc-shaped strip 4 is first contacted. The arc-shaped strip 4 is subjected to force to make the pulley 6 slide in the slide groove 3, thereby alleviating part of the impact force of the collision.

[0026] The arc strip 4 is a rubber material object, which is elastic and can avoid breakage due to excessive force when it is hit.

[0027] The shock absorbing assembly 7 includes a fixed block 71 arranged inside the boom body 1, two fixed blocks 71 are symmetrically arranged up and down, a shock transmitting plate 72 is connected to the fixed block 71, a connecting rod 73 is arranged on the side of the shock transmitting plate 72 close to the inner wall of the boom body 1, a shock absorbing cylinder 74 is installed on the inner wall of the boom body 1, and the end of the connecting rod 73 away from the shock transmitting plate 72 is slidably arranged inside the shock absorbing cylinder 74, and a moving block 75 is arranged at the end of the connecting rod 73 inside the shock absorbing cylinder 74, and the moving block 75 is movably arranged inside the shock absorbing cylinder 74, and a shock absorbing spring 76 is arranged inside the shock absorbing cylinder 74, and one end of the shock absorbing spring 76 is fixedly installed on the moving block 75. When the bucket contacts the material or the ground and generates vibration, the vibration is transmitted to the connecting rod 73 through the shock transmitting plate 72, and the connecting rod 73 pushes the moving block 75 to compress the shock absorbing spring 76, thereby alleviating the vibration of the boom body 1 itself.

[0028] Working principle: First, when the excavator boom is hit, the impact force first contacts the arc bar 4. The arc bar 4 is forced to make the pulley 6 slide in the slide groove 3, alleviating part of the impact force of the collision. Then the anti-collision plate 22 contacts the impact force and transmits it to the telescopic rod 21. The telescopic rod 21 moves the compression buffer spring 23 to alleviate part of the collision force. At the same time, the anti-collision plate 22 transmits the impact force to the sliding sleeve 25 through the movable rod 28. The sliding sleeve 25 is forced to move along the guide rod 24, pushing the compression buffer spring 26, so as to unload the force and avoid direct contact and collision between the boom body 1 and damage.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An impact-resistant excavator boom, comprising a boom body (1), characterized in that: A shock absorbing component (7) is arranged inside the boom body (1), and an anti-collision component (2) is arranged outside the boom body (1). The anti-collision component (2) comprises a telescopic rod (21) fixedly mounted on the surface of the boom body (1), an end of the telescopic rod (21) away from the boom body (1) is connected to an anti-collision plate (22), a buffer spring (23) is sleeved outside the telescopic rod (21), a guide rod (24) is connected between adjacent side walls of the telescopic rod (21), and an outer sliding sleeve of the guide rod (24) is provided. A sliding sleeve (25) is connected, and a second buffer spring (26) is provided on the outer movable sleeve of the guide rod (24) on the opposite side of the sliding sleeve (25). A hinge (27) is fixedly connected to the outer side of the sliding sleeve (25), and a movable rod (28) is rotatably connected to the hinge (27). A column (29) is installed on the anti-collision plate (22) between the telescopic rods (21), and a rotating rod (210) is arranged between the columns (29). The movable sleeve of the end of the movable rod (28) away from the hinge (27) is arranged on the outer side of the rotating rod (210).

2. The impact-resistant excavator boom according to claim 1, characterized in that: A slide groove (3) is provided on a side of the anti-collision plate (22) away from the boom body (1), and a wedge block (31) is provided inside the slide groove (3).

3. The impact-resistant excavator boom according to claim 1, characterized in that: An arc strip (4) is arranged on the outer side of the anti-collision plate (22), connecting blocks (5) are arranged at both ends of the arc strip (4), and pulleys (6) are arranged on the connecting blocks (5).

4. The impact-resistant excavator boom according to claim 3, characterized in that: The pulley (6) is movably arranged inside the slide groove (3) and is rollingly arranged on the wedge block (31).

5. The impact-resistant excavator boom according to claim 3, characterized in that: The arc strip (4) is an object made of rubber material.

6. The impact-resistant excavator boom according to claim 1, characterized in that: The shock absorbing assembly (7) comprises a fixed block (71) arranged inside the boom body (1), a shock transmitting plate (72) being connected to the fixed block (71), a connecting rod (73) being arranged on a side of the shock transmitting plate (72) close to the inner wall of the boom body (1), a shock absorbing cylinder (74) being installed on the inner wall of the boom body (1), an end of the connecting rod (73) away from the shock transmitting plate (72) being slidably arranged inside the shock absorbing cylinder (74), a moving block (75) being arranged at the end of the connecting rod (73) inside the shock absorbing cylinder (74), the moving block (75) being movably arranged inside the shock absorbing cylinder (74), a shock absorbing spring (76) being arranged inside the shock absorbing cylinder (74), one end of the shock absorbing spring (76) being fixedly installed on the moving block (75).

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