Auxiliary spring for excavator

Abstract

The booster spring for the excavator comprises two fixing plates, the side walls of the two ends of the two fixing plates are fixedly connected with connecting blocks provided with installation holes in a penetrating mode, and the two fixing plates can be fixedly installed on the two sides of a force arm of the excavator through the connecting blocks respectively. The two fixing plates are connected through a plurality of telescopic connecting pieces, and the opposite side walls of the two fixing plates are fixedly connected with a plurality of mounting blocks in a rectangular array mode. The structure is reasonable in design, the structure can be stably installed on the excavator force arm, the spring piece can be fixed between the two opposite installation blocks, different numbers of compression springs are installed according to actual use requirements, the overall elastic strength can be changed, the excavator force arm can be conveniently used, and after long-time use, the service life of the excavator force arm is prolonged. And the spring piece and the telescopic connecting piece are convenient to disassemble and then convenient to maintain or replace, operation is easy and convenient, and the situation that dust and impurities adhere to influence normal use is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of excavators, in particular to an assisting spring for an excavator. Background Art

[0002] An excavator is an earthwork machine that uses a bucket to excavate materials above or below the machine surface and transfer the materials. The working devices of existing excavators and loaders are hinged by a boom, an arm, and a bucket. Driving oil cylinders for driving the boom to rise and fall, the arm to extend and retract, and the bucket to rotate are connected between the boom and the frame, between the boom and the arm, and between the arm and the bucket, and the driving oil cylinders are connected to the engine. During the actual operation of an excavator or a loader, an assisting spring is usually arranged on the excavation force arm used by the excavator to facilitate the bending and stretching of the force arm.

[0003] The number of existing assisting springs usually cannot be adjusted and cannot be replaced once installed, making it impossible to change the assisting elastic force according to the actual use requirements of the excavator, which has certain limitations. Moreover, due to a large amount of dust in the actual working environment of the excavator, after long-term use, a large amount of dust usually adheres to the assisting spring, affecting its normal use and requiring maintenance or replacement. For this reason, we have designed an assisting spring for an excavator to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problems existing in the prior art, and an assisting spring for an excavator is proposed. It can stably install this structure on the excavator force arm, and can fix the spring member between two opposite mounting blocks. Different numbers of compression springs can be installed according to actual use requirements to change the overall elastic force, so as to facilitate the use of the excavator force arm. After long-term use, it is convenient to disassemble the spring member and the telescopic connecting member, and then facilitate its maintenance or replacement. The operation is simple, and the influence of dust and impurities adhering to its normal use is reduced.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] An assisting spring for an excavator includes two fixing plates. Connecting blocks with mounting holes penetrating through are fixedly connected to the side walls at both ends of the two fixing plates. The two fixing plates can be respectively fixedly installed on both sides of the excavator force arm through the connecting blocks. The two fixing plates are connected by a plurality of telescopic connecting members. Rectangular arrays of a plurality of mounting blocks are fixedly connected to the opposite side walls of the two fixing plates. A jack is opened on the side wall of the mounting block. A spring member is commonly inserted into two jacks on the same horizontal straight line of the two fixing plates. A limiting component for stably fixing the spring member is arranged on the mounting block.

[0007] Preferably, the telescopic connecting piece includes two locking blocks respectively connected to the two fixing plates by screws. Connecting sleeves are fixedly connected to the opposite side walls of the two locking blocks, and a connecting sliding rod is slidably connected in the two connecting sleeves together.

[0008] Preferably, blocking blocks are fixedly connected to the side walls at both ends of the connecting sliding rod, and the blocking blocks at both ends abut against the inner side walls of the two connecting sleeves respectively.

[0009] Preferably, the connecting sleeve and the connecting sliding rod are both made of flexible materials.

[0010] Preferably, the spring member includes two plug blocks, a compression spring is fixedly connected between the two plug blocks, and the two plug blocks are respectively inserted into two jacks on the same horizontal straight line of the two fixing plates.

[0011] Preferably, the limiting assembly includes two guiding chutes opened on the side wall of the mounting block. Two guiding sliders are slidably connected in each of the two guiding chutes. A plurality of elastic springs are connected between the two guiding sliders in the same guiding chute and the inner side walls at both ends of the guiding chute. Limiting plates are fixedly connected to the side walls of the two guiding sliders on the same horizontal line in the two guiding chutes. The two limiting plates are arranged up and down and both abut against the side wall of the plug block.

[0012] Preferably, both ends of the two limiting plates on the same mounting block are fixed by limiting clips.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. For this booster spring for excavators, the two fixing plates can be connected through the telescopic connecting piece, and this structure can be stably installed on the boom of the excavator, and the spring member can be fixed between two opposite mounting blocks. Different numbers of compression springs can be installed according to actual use requirements to change the overall elastic force, so as to facilitate the use of the boom of the excavator.

[0015] 2. For this booster spring for excavators, it is convenient to disassemble the spring member and the telescopic connecting piece, and thus it is convenient to maintain or replace them. The operation is simple, and the influence of dust and impurities adhering after long-term use on its normal use is reduced. Description of the Drawings

[0016] Figure 1 is a first perspective three-dimensional structure diagram of a booster spring for excavators proposed by the present utility model;

[0017] Figure 2 is a second perspective three-dimensional structure diagram of a booster spring for excavators proposed by the present utility model;

[0018] Figure 3 is Figure 2 the enlarged view of the structure at position A in

[0019] Figure 4 the schematic diagram of the main view plane structure of a boosting spring for an excavator proposed by the present utility model;

[0020] Figure 5 is Figure 4 the schematic diagram of the sectional structure at A-A in

[0021] Figure 6 the connection schematic diagram of the connecting sleeve and the connecting sliding rod;

[0022] Figure 7 the connection schematic diagram of the limiting plate and the limiting clamp.

[0023] In the figure: 1, fixed plate; 2, connecting block; 3, locking block; 4, connecting sleeve; 5, connecting sliding rod; 6, mounting block; 7, jack; 8, plug block; 9, compression spring; 10, guiding chute; 11, guiding slider; 12, elastic spring; 13, limiting plate; 14, limiting clamp. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0025] Referring to Figures 1-7 , a boosting spring for an excavator includes two fixed plates 1. Connecting blocks 2 with mounting holes penetratingly opened are fixedly connected to the side walls at both ends of the two fixed plates 1. The two fixed plates 1 can be respectively fixedly installed on both sides of the boom of the excavator through the connecting blocks 2. By passing bolts through the mounting holes in the connecting blocks 2, this structure can be stably installed on the boom of the excavator;

[0026] The two fixed plates 1 are connected by a plurality of telescopic connectors. The telescopic connectors include two locking blocks 3 respectively connected to the two fixed plates 1 by screws. The connection by screws facilitates the installation or disassembly of the locking blocks 3. Connecting sleeves 4 are fixedly connected to the opposite side walls of the two locking blocks 3. A connecting sliding rod 5 is slidably connected in the two connecting sleeves 4 together. Blocking blocks are fixedly connected to the side walls at both ends of the connecting sliding rod 5. The blocking blocks at both ends are respectively abutted against the inner side walls of the two connecting sleeves 4. The sliding of the blocking blocks in the connecting sleeves 4 can play a blocking role on the connecting sliding rod 5 to prevent the connecting sliding rod 5 from falling off from the connecting sleeves 4. Furthermore, the cooperation of the connecting sliding rod 5 and the two connecting sleeves 4 can play a connecting role on the two fixed plates 1. The connecting sleeves 4 and the connecting sliding rod 5 are both made of flexible materials, so that the connecting sleeves 4 and the connecting sliding rod 5 can bend following the movement of the boom of the excavator;

[0027] On the opposite side walls of the two fixing plates 1, a plurality of mounting blocks 6 are fixedly connected in a rectangular array. A jack 7 is formed on the side wall of the mounting block 6. A spring member is commonly inserted into the two jacks 7 on the same horizontal straight line of the two fixing plates 1. The spring member includes two plug blocks 8. A compression spring 9 is fixedly connected between the two plug blocks 8. The two plug blocks 8 are respectively inserted into the two jacks 7 on the same horizontal straight line of the two fixing plates 1. The plug block 8 is adapted to the jack 7, and the end of the plug block 8 is tapered to facilitate the insertion of the plug block 8 into the jack 7. Different numbers of spring members can be installed according to actual use requirements to change the overall elastic force.

[0028] A limiting component for stably fixing the spring member is provided on the mounting block 6. The limiting component includes two guiding chutes 10 formed on the side wall of the mounting block 6. Two guiding sliders 11 are slidably connected in each of the two guiding chutes 10. The guiding slider 11 is adapted to the guiding chute 10, enabling the guiding slider 11 to only slide up and down in the guiding chute 10. A plurality of elastic springs 12 are connected between the two guiding sliders 11 in the same guiding chute 10 and the inner side walls at both ends of the guiding chute 10. In the natural state, the elastic spring 12 can push the two guiding sliders 11 in the same guiding chute 10 to approach each other. The side walls of the two guiding sliders 11 located on the same horizontal line in the two guiding chutes 10 are commonly fixedly connected with a limiting plate 13. The two limiting plates 13 are arranged up and down and both abut against the side wall of the plug block 8. The two limiting plates 13 jointly act to stably fix the plug block 8 in the jack 7. Both ends of the two limiting plates 13 on the same mounting block 6 are fixed by a limiting clip 14. The limiting clip 14 can fix the two limiting plates 13, preventing the two limiting plates 13 from approaching or separating from each other, and thus stably fixing the spring member between the two mounting blocks 6.

[0029] The functional principle of the present utility model can be described through the following operation method:

[0030] In the present utility model, when the assisting spring for the excavator is in use, the two locking blocks 3 at both ends of the telescopic connecting member are respectively connected to the two fixing plates 1 by screws, so as to connect the two fixing plates 1. By passing bolts through the mounting holes on the connecting block 2, the two fixing plates 1 can be respectively fixedly installed on both sides of the boom of the excavator. Furthermore, this structure can be stably installed on the boom of the excavator. By separating the two limiting plates 13 on the same mounting block 6, the two inserting blocks 8 at both ends of the spring member are respectively inserted into the inserting holes 7 on the corresponding mounting blocks 6. The elastic spring 12 can push the guiding slider 11 to drive the limiting plate 13 to move, so that the limiting plate 13 abuts against the front side wall of the inserting block 8. Furthermore, the spring member can be fixed between two opposite mounting blocks 6. According to the actual use requirements, different numbers of spring members can be installed to change the overall elastic force. By clamping the limiting clip 14 between the two limiting plates 13 on the same mounting block 6, the two limiting plates 13 can be stably fixed so that they cannot approach or move away from each other. Furthermore, the spring member can be further stably fixed to facilitate the use of the boom of the excavator;

[0031] When it is necessary to disassemble, maintain or replace the spring member, remove the limiting clip 14 and pull the two limiting plates 13 away from each other, so that the inserting block 8 can be removed from the inserting hole 7. Furthermore, the spring member can be disassembled for maintenance or replacement. When it is necessary to disassemble the telescopic connecting member for maintenance or replacement, unscrew the screws to separate the locking block 3 from the fixing plate 1. Furthermore, the telescopic connecting member can be disassembled for maintenance or replacement, and the operation is simple.

[0032] The above is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A boosting spring for an excavator, comprising two fixing plates (1), characterized in that, Both ends of the side walls of the two fixing plates (1) are fixedly connected with connecting blocks (2) through which mounting holes are penetrated. The two fixing plates (1) can be respectively fixedly installed on both sides of the boom of an excavator through the connecting blocks (2). The two fixing plates (1) are connected by a plurality of telescopic connecting members. The opposite side walls of the two fixing plates (1) are fixedly connected with a plurality of mounting blocks (6) in a rectangular array. A jack (7) is formed in the side wall of the mounting block (6). A spring member is inserted into the two jacks (7) on the same horizontal straight line of the two fixing plates (1). A limiting component for stably fixing the spring member is arranged on the mounting block (6).

2. The assist spring for an excavator according to claim 1, characterized in that, The telescopic connecting member includes two locking blocks (3) respectively connected to the two fixing plates (1) by screws. Connecting sleeves (4) are fixedly connected to the opposite side walls of the two locking blocks (3). A connecting slide bar (5) is slidably connected in the two connecting sleeves (4) together.

3. The assist spring for an excavator according to claim 2, characterized in that, Blocking blocks are fixedly connected to both ends of the side wall of the connecting slide bar (5), and the two blocking blocks at both ends are respectively abutted against the inner side walls of the two connecting sleeves (4).

4. The assist spring for an excavator according to claim 2, wherein, The connecting sleeve (4) and the connecting slide bar (5) are both made of flexible materials.

5. The assist spring for an excavator according to claim 1, characterized in that, The spring member includes two insertion blocks (8). A compression spring (9) is fixedly connected between the two insertion blocks (8). The two insertion blocks (8) are respectively inserted into the two jacks (7) on the same horizontal straight line of the two fixing plates (1).

6. The assist spring for an excavator according to claim 5, characterized in that, The limiting component includes two guiding sliding grooves (10) formed in the side wall of the mounting block (6). Two guiding sliding blocks (11) are slidably connected in each of the two guiding sliding grooves (10). A plurality of elastic springs (12) are connected between the two guiding sliding blocks (11) in the same guiding sliding groove (10) and the inner side walls at both ends of the guiding sliding groove (10). Limiting plates (13) are fixedly connected to the side walls of the two guiding sliding blocks (11) on the same horizontal line in the two guiding sliding grooves (10). The two limiting plates (13) are arranged up and down and are respectively abutted against the side wall of the insertion block (8).

7. The assist spring for an excavator according to claim 6, wherein Both ends of the two limiting plates (13) on the same mounting block (6) are fixed by limiting clips (14).

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