Telescopic excavator bucket rod

Abstract

The utility model relates to the technical field of excavator bucket rods, and discloses a telescopic excavator bucket rod which comprises a first bucket rod body, a second bucket rod body is arranged on the left portion of the first bucket rod body, a hydraulic cylinder is fixedly installed on the upper portion of the first bucket rod body, the telescopic end of the hydraulic cylinder is fixedly connected with a supporting seat, and the supporting seat is fixedly connected to the upper portion of the second bucket rod body. A sliding plate is fixedly arranged in the first bucket rod, the sliding plate is arranged in the second bucket rod, a plurality of limiting holes are formed in the sliding plate, and a guide rail is fixedly connected to the lower portion of the sliding plate. When the bucket tooth tip section on the bucket needs to be replaced, the bucket tooth fixing plate is detached by pulling the fixing rod out of the fixing hole, separating the mounting block from the mounting groove of the mounting plate and pulling out the inserting rod in the mounting block, a new bucket tooth fixing plate is arranged outside the mounting block in a sleeving mode, and the inserting rod is inserted into the inserting groove to be fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of excavator bucket arms, in particular to a telescopic excavator bucket arm. Background Art

[0002] Excavators are the most common construction machinery in engineering construction. Excavators can dig materials through buckets and then place them in designated locations. Excavators are also widely used, not only in construction machinery, but also in agriculture and forestry.

[0003] However, the boom of existing excavators is generally of fixed length and cannot be adjusted on site, so it will not work under different construction environments, and the bucket teeth cannot be disassembled and assembled, resulting in the need to replace the entire bucket, which is cumbersome to operate. Therefore, a retractable excavator boom is provided to solve the problems raised in the above background technology. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides a retractable excavator bucket arm, aiming to solve the problem that the prior art cannot be adjusted on site, so it will not work under different construction environments, and the bucket teeth cannot be disassembled and assembled, resulting in the need to replace the entire bucket.

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

[0006] The telescopic excavator boom comprises a boom 1, a boom 2 is provided on the left part of the boom 1, a hydraulic cylinder is fixedly installed on the upper part of the boom 1, the telescopic end of the hydraulic cylinder is fixedly connected to a support seat, the support seat is fixedly connected to the upper part of the boom 2, a sliding plate is fixedly provided inside the boom 1, the sliding plate is arranged inside the boom 2, a plurality of limiting holes are opened inside the sliding plate, the lower part of the sliding plate is fixedly connected to a guide rail, the inner bottom of the boom 2 is fixedly installed with a slide rail, the rear part of the boom 2 is fixedly connected to a propulsion chamber, the rear part of the propulsion chamber is fixedly connected to a sensor, an electric push rod is fixedly installed inside the propulsion chamber, the telescopic end of the electric push rod is fixedly connected to the limiting rod, the lower parts of the boom 1 and the boom 2 are both fixedly connected to a fixing plate, the fixing plate is inside a fixing bolt, the front part of the boom 2 is rotatably connected to a bucket, and a mounting assembly is provided inside the bucket.

[0007] Further, the mounting assembly includes a mounting plate, the mounting plate is arranged on the inner wall of the bucket, a fixing rod is arranged inside the mounting plate, fixing holes are provided inside the bucket and the mounting plate, a mounting groove is provided inside the mounting plate, the mounting groove and the fixing hole are connected, a mounting block is provided inside the mounting plate, a slot is provided inside the mounting block, an insert rod is provided inside the mounting block, a bucket tooth fixing plate is provided outside the mounting block, and a bucket tooth tip section is fixedly connected to the right side of the bucket tooth fixing plate.

[0008] Furthermore, the fixing bolt is threadedly connected inside the fixing plate.

[0009] Furthermore, the limiting rod is slidably connected inside the limiting hole.

[0010] Furthermore, the mounting block is slidably connected inside the mounting groove.

[0011] Furthermore, the insertion rod is slidably connected inside the slot.

[0012] Furthermore, the guide rail is slidably connected inside the slide rail.

[0013] Furthermore, the sliding plate is slidably connected to the interior of the second boom.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, through the cooperation between structures such as the bucket arm 1, the bucket arm 2, the support seat, the sliding plate, the slide rail, the propulsion chamber, the electric push rod and the bucket, by starting the hydraulic cylinder on the bucket arm 1, the telescopic end of the hydraulic cylinder drives the support seat to move, and the support seat is installed on the bucket arm 2, so that the bucket arm 2 is pushed to move, thereby driving the guide rail at the bottom of the sliding plate to slide and guide on the slide rail inside the bucket arm 2. When it moves to the specified position, the sensor controls the electric push rod inside the propulsion chamber to operate, and pushes the limit rod to be inserted into the limit hole on the sliding plate, so as to adjust the overall length of the device to meet different work requirements.

[0016] 2. In the utility model, through the cooperation among the structures such as the mounting plate, the fixing rod, the mounting groove, the mounting plate, the slot, the plug rod, the bucket tooth tip section and the bucket tooth fixing plate, when the bucket tooth tip section on the bucket needs to be replaced, the fixing rod is pulled out of the fixing hole, the mounting block is separated from the mounting groove of the mounting plate, and then the plug rod inside the mounting block is pulled out to disassemble the bucket tooth fixing plate, and then a new bucket tooth fixing plate is sleeved on the outside of the mounting block, and the plug rod is inserted into the slot for fixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of the telescopic excavator boom proposed by the utility model;

[0018] Figure 2 This is a partial structural diagram of a workbench of a telescopic excavator bucket arm proposed by the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the second bucket arm of the telescopic excavator bucket arm proposed by the utility model;

[0020] Figure 4 This is a schematic diagram of the bucket structure of the telescopic excavator bucket arm proposed by the utility model;

[0021] Figure 5 The utility model is a schematic diagram of the installation assembly structure of the telescopic excavator bucket arm.

[0022] Legend:

[0023] 1. Arm 1; 2. Arm 2; 3. Hydraulic cylinder; 4. Bucket; 5. Support seat; 6. Guide rail; 7. Slide rail; 8. Slide plate; 9. Limit rod; 10. Electric push rod; 11. Propulsion chamber; 12. Sensor; 13. Mounting plate; 14. Fixing rod; 15. Fixing hole; 16. Mounting block; 17. Mounting slot; 18. Bucket tooth fixing plate; 19. Insert rod; 20. Slot; 21. Fixing plate; 22. Fixing bolt; 23. Limit hole; 24. Bucket tooth tip section. DETAILED DESCRIPTION

[0024] 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.

[0025] Reference Figure 1 , Figure 2 and Figure 3 , an embodiment provided by the utility model:

[0026] A telescopic excavator boom comprises a boom 1, a boom 2 is arranged on the left part of the boom 1, a hydraulic cylinder 3 is fixedly installed on the upper part of the boom 1, a telescopic end of the hydraulic cylinder 3 is fixedly connected to a support seat 5, the support seat 5 is fixedly connected to the upper part of the boom 2, a sliding plate 8 is fixedly arranged inside the boom 1, the sliding plate 8 is arranged inside the boom 2, a plurality of limiting holes 23 are opened inside the sliding plate 8, a guide rail 6 is fixedly connected to the lower part of the sliding plate 8, a slide rail 7 is fixedly installed on the inner bottom of the boom 2, a propulsion chamber 11 is fixedly connected to the rear part of the boom 2, a sensor 12 is fixedly connected to the rear part of the propulsion chamber 11, an electric push rod 10 is fixedly installed inside the propulsion chamber 11, a telescopic end of the electric push rod 10 is fixedly connected to a limiting rod 9, the lower parts of the boom 1 and the boom 2 are both fixedly connected to a fixing plate 21, a fixing bolt 22 is arranged inside the fixing plate 21, a bucket 4 is rotatably connected to the front part of the boom 2, and a mounting assembly is arranged inside the bucket 4;

[0027] By starting the hydraulic cylinder 3 on the boom 1, the telescopic end of the hydraulic cylinder 3 drives the support seat 5 to move, and the support seat 5 is installed on the boom 2, so that the boom 2 is pushed to move, thereby driving the guide rail 6 at the lower part of the sliding plate 8 to slide and guide on the slide rail 7 inside the boom 2. When it moves to the specified position, the sensor 12 controls the operation of the electric push rod 10 inside the propulsion chamber 11, pushing the limit rod 9 to insert into the limit hole 23 on the sliding plate 8, adjusting the overall length of the device to meet different working requirements. When not working, the boom 1 and the boom 2 are fixed by the fixing bolts 22.

[0028] Reference Figure 1 , Figure 4 and Figure 5 The mounting assembly includes a mounting plate 13, the mounting plate 13 is arranged on the inner wall of the bucket 4, a fixing rod 14 is arranged inside the mounting plate 13, a fixing hole 15 is opened inside the bucket 4 and the mounting plate 13, a mounting groove 17 is opened inside the mounting plate 13, the mounting groove 17 is communicated with the fixing hole 15, a mounting block 16 is arranged inside the mounting plate 13, a slot 20 is opened inside the mounting block 16, an insert rod 19 is arranged inside the mounting block 16, a bucket tooth fixing plate 18 is arranged outside the mounting block 16, and a bucket tooth tip section 24 is fixedly connected to the right side of the bucket tooth fixing plate 18;

[0029] When the tooth tip section 24 on the bucket 4 needs to be replaced, the fixing rod 14 is pulled out of the fixing hole 15, the mounting block 16 is separated from the mounting groove 17 of the mounting plate 13, and then the insertion rod 19 inside the mounting block 16 is pulled out, so that the tooth fixing plate 18 is disassembled, and then a new tooth fixing plate 18 is sleeved on the outside of the mounting block 16, and the insertion rod 19 is inserted into the slot 20 for fixing.

[0030] Reference Figure 2 , Figure 3 and Figure 5 , the fixing bolt 22 is threadedly connected to the inside of the fixing plate, the limiting rod 9 is slidably connected to the inside of the limiting hole 23, the mounting block 16 is slidably connected to the inside of the mounting groove 17, the plug rod 19 is slidably connected to the inside of the slot 20, the guide rail 6 is slidably connected to the inside of the slide rail 7, and the sliding plate 8 is slidably connected to the inside of the bucket arm 2;

[0031] The fixing bolts 22 are connected to the internal threads of the fixing plate. When not working, the bucket arm 1 and the bucket arm 2 are fixed by the fixing bolts 22. The limiting rod 9 slides inside the limiting hole 23, so the overall length of the device can be adjusted to meet different working requirements. The bucket tooth fixing plate 18 can be disassembled by sliding the mounting block 16 inside the mounting groove 17. The bucket tooth tip section 24 can be repaired and replaced by sliding the insert rod 19 inside the slot 20. The sliding plate 8 can be limited by sliding by sliding the guide rail 6 inside the slide rail 7. The sliding plate 8 can be driven to move the bucket arm 22 by sliding the sliding plate 8 inside the bucket arm 2, so as to adjust the length of the device.

[0032] Working principle: When using this device, by starting the hydraulic cylinder 3 on the bucket arm 1, the hydraulic cylinder 3 drives the support seat 5 to move, and the support seat 5 is installed on the bucket arm 2, so that the bucket arm 2 is pushed to move, thereby driving the guide rail 6 at the bottom of the sliding plate 8 to slide and guide on the slide rail 7 inside the bucket arm 2. When it moves to the specified position, the sensor 12 controls the electric push rod 10 inside the propulsion chamber 11 to operate, and pushes the limit rod 9 to insert into the limit hole 23 on the sliding plate 8 to adjust the length. When the bucket tooth tip section 24 on the bucket 4 needs to be replaced, the fixing rod 14 is pulled out of the fixing hole 15, the mounting block 16 is separated from the mounting groove 17 of the mounting plate 13, and then the plug rod 19 inside the mounting block 16 is pulled out, so that the bucket tooth fixing plate 18 is disassembled, and then the new bucket tooth fixing plate 18 is set on the outside of the mounting block 16, and the plug rod 19 is inserted into the slot 20 for fixing.

[0033] 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. A retractable excavator boom, comprising a boom 1 (1), characterized in that: A second arm (2) is arranged on the left side of the first arm (1), a hydraulic cylinder (3) is fixedly mounted on the upper part of the first arm (1), a telescopic end of the hydraulic cylinder (3) is fixedly connected to a support seat (5), the support seat (5) is fixedly connected to the upper part of the second arm (2), a sliding plate (8) is fixedly mounted inside the first arm (1), the sliding plate (8) is arranged inside the second arm (2), a plurality of limiting holes (23) are formed inside the sliding plate (8), a guide rail (6) is fixedly mounted on the lower part of the sliding plate (8), and a slide rail is fixedly mounted on the inner bottom of the second arm (2). (7), the rear portion of the second boom (2) is fixedly connected to a propulsion chamber (11), the rear portion of the propulsion chamber (11) is fixedly connected to a sensor (12), an electric push rod (10) is fixedly installed inside the propulsion chamber (11), the telescopic end of the electric push rod (10) is fixedly connected to a limit rod (9), the lower portions of the first boom (1) and the second boom (2) are fixedly connected to a fixing plate (21), the fixing plate (21) is provided with fixing bolts (22), the front portion of the second boom (2) is rotatably connected to a bucket (4), and a mounting assembly is provided inside the bucket (4).

2. The telescopic excavator boom according to claim 1, characterized in that: The mounting assembly comprises a mounting plate (13), the mounting plate (13) being arranged on the inner wall of the bucket (4), a fixing rod (14) being arranged inside the mounting plate (13), a fixing hole (15) being provided inside the bucket (4) and the mounting plate (13), a mounting groove (17) being provided inside the mounting plate (13), the mounting groove (17) being communicated with the fixing hole (15), a mounting block (16) being arranged inside the mounting plate (13), a slot (20) being provided inside the mounting block (16), an insertion rod (19) being arranged inside the mounting block (16), a bucket tooth fixing plate (18) being arranged outside the mounting block (16), and a bucket tooth tip section (24) being fixedly connected to the right side of the bucket tooth fixing plate (18).

3. The telescopic excavator boom according to claim 2, characterized in that: The fixing bolt (22) is threadedly connected inside the fixing plate (21).

4. The telescopic excavator boom according to claim 1, characterized in that: The limiting rod (9) is slidably connected inside the limiting hole (23).

5. The telescopic excavator boom according to claim 2, characterized in that: The mounting block (16) is slidably connected inside the mounting groove (17).

6. The telescopic excavator boom according to claim 2, characterized in that: The insertion rod (19) is slidably connected inside the slot (20).

7. The telescopic excavator boom according to claim 1, characterized in that: The guide rail (6) is slidably connected inside the slide rail (7).

8. The telescopic excavator boom according to claim 1, characterized in that: The sliding plate (8) is slidably connected inside the second boom (2).

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