Hydraulic excavator carrying breaking hammer type splitting stone crusher

Abstract

The utility model belongs to the technical field of cleaving machines, and discloses a hydraulic excavator carrying quartering hammer type cleaving stone crusher which comprises a hydraulic cylinder, an inner supporting wedge block and two outer wedge block assemblies, the upper ends of the two outer wedge block assemblies are movably connected to the lower end of an inner cavity of the hydraulic cylinder, the upper end of the inner supporting wedge block is connected into the hydraulic cylinder in a sealed and sleeved mode, and the outer wedge block assemblies are movably connected to the lower end of the inner cavity of the hydraulic cylinder. The inner supporting wedge block is located between the opposite faces of the two outer wedge block assemblies, an upper resistance reducing assembly and a lower resistance reducing assembly are movably embedded into the opposite faces of the two outer wedge block assemblies, and the axis connecting line of the two resistance reducing assemblies on each outer wedge block assembly is parallel to the corresponding side of the inner supporting wedge block. By means of the resistance reducing assembly, it can be ensured that when the inner supporting wedge block moves downwards, the two outer expanding wedge blocks can be expanded through the resistance reducing assembly, then rocks are split, contact friction between the inner supporting wedge block and the outer wedge block assembly can be reduced along with continuous downward movement of the inner supporting wedge block in the period, and therefore the effects of reducing resistance, abrasion and the like are achieved.

Description

Technical Field

[0001] This utility model belongs to the field of rock splitting technology, specifically a hydraulic excavator carrying a hydraulic breaker-type rock splitting and breaking machine. Background Technology

[0002] A rock splitter is a device that utilizes the low tensile strength of rocks. It is commonly used when the object to be broken (such as concrete or rock) has high compressive strength but low tensile strength. The splitter works inside the rock to split it in a predetermined direction. Its working principle is: high-pressure oil drives the middle wedge of the wedge block group to move forward, pushing the opposite wedge block to both sides, so that the force is applied to the rock on both sides, causing the rock to split.

[0003] In existing hydraulic excavator-mounted rock splitters, the middle wedge and its two side wedges are in direct contact. When the middle wedge continuously advances between the two side wedges, it generates a great deal of friction, which not only accelerates the wear of the wedge assembly but also greatly increases the resistance to the advancement of the middle wedge, leading to increased energy consumption for the advancement of the middle wedge. Moreover, the large friction generates a high amount of heat, accelerating the heat loss rate of the wedge assembly. Therefore, it is necessary to develop a new type of rock splitter with a hydraulic excavator-mounted hydraulic breaker to address the shortcomings of the existing technology. Utility Model Content

[0004] To address the problems mentioned in the background section, this utility model provides a hydraulic excavator carrying a hydraulic breaker-type rock splitter, which has advantages such as lower resistance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A hydraulic excavator carrying a hydraulic breaker-type rock splitter includes a hydraulic cylinder, an inner support wedge, and two outer wedge assemblies. The upper ends of the two outer wedge assemblies are movably connected to the lower end of the inner cavity of the hydraulic cylinder. The upper end of the inner support wedge is sealed and fitted inside the hydraulic cylinder. The inner support wedge is located between the opposing surfaces of the two outer wedge assemblies. Two upper and lower drag-reducing components are movably embedded in the opposing surfaces of the two outer wedge assemblies. The axis connecting the two drag-reducing components on each outer wedge assembly is parallel to the corresponding side of the inner support wedge. The hydraulic cylinder has two left and right connecting components inside. The two connecting components correspond one-to-one with the outer wedge assemblies. The upper end of the connecting component extends through the outer wedge assembly to the outside of the hydraulic cylinder, and the lower end of the connecting component extends to the two drag-reducing components inside the outer wedge assembly.

[0006] Preferably, the hydraulic cylinder is externally slidably attached to a mounting bracket, the top of the hydraulic cylinder is connected to the upper end of the mounting bracket via a hydraulic hoist, and the hydraulic cylinder, the outer wedge block assembly, and the inner support wedge block are connected as a whole to the front end of the excavator boom via the mounting bracket.

[0007] Preferably, the outer wedge assembly includes an outer expansion wedge block movably connected to the lower end of the hydraulic cylinder, the upper end of the outer expansion wedge block is integrally formed with a limiting head, the outer expansion wedge block and the limiting head are smoothly connected on the side near the inner support wedge block, and the two sides of the inner support wedge block are tightly fitted to the side where the two outer expansion wedge blocks and the limiting head are smoothly connected.

[0008] Preferably, a linkage groove is provided on the outer surface of the limiting head away from the inner support wedge block, and a positioning spring rod is provided inside the linkage groove. The limiting head and the outer expansion wedge block are connected to the hydraulic cylinder as a whole through the positioning spring rod.

[0009] Preferably, the limiting head has two positioning grooves located on the front and rear sides of the linkage slot. A positioning slider is slidably engaged inside the positioning groove. One end of the positioning slider extends into the interior of the linkage slot and is connected to the positioning spring rod through a rotating shaft.

[0010] Preferably, the drag-reducing component includes a drag-reducing roller that is movably embedded inside the expanding wedge block. A positioning shaft is movably sleeved inside the drag-reducing roller. Both ends of the positioning shaft are rotatably connected to plugs via bearings. The plugs are sleeved inside the expanding wedge block.

[0011] Preferably, the connecting component includes a connecting cavity opened inside the expanding wedge block, the upper end of the connecting cavity extends into the linkage slot and is connected to a conveying pipe, the other end of the conveying pipe extends to the outside of the hydraulic cylinder, and the lower end of the connecting cavity extends to the top of the two drag-reducing rollers.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. Due to the setting of the drag-reducing components, under the restriction of the limiting head, the upper and lower sets of drag-reducing components on the facing surfaces of the two outward expansion wedges can roll and fit against both sides of the outer surface of the inner support wedge. This ensures that when the inner support wedge moves down under the action of hydraulic pressure in the hydraulic cylinder, it can open the two outward expansion wedges through the drag-reducing components, and then split the rock through the outward expansion wedges. During this process, as the inner support wedge moves down continuously, the contact friction between the inner support wedge and the outer wedge components can be reduced, thereby achieving the effect of reducing resistance and wear.

[0014] 2. Due to the positioning shaft, this utility model can ensure that the drag-reducing roller can rotate stably inside the outer wedge block with the help of the plug. Pulling out the positioning shaft and the plug makes it easy for the staff to take out the drag-reducing roller from the side of the outer wedge block that is close to the inner support wedge block, so as to replace the drag-reducing roller and ensure its rolling support effect on the inner support wedge block.

[0015] 3. Due to the connection component, this utility model allows clean water or coolant to be injected into the interior of the connecting cavity through the delivery pipe. The clean water is then sprayed out from the drag-reducing roller to rinse the outer surface of the inner support wedge, while the coolant that seeps out can cool the lower end of the inner support wedge that has entered the rock through the drag-reducing roller. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a front view of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure on the right side of the outer wedge block assembly of this utility model;

[0019] Figure 4 for Figure 3 A partial schematic diagram of the middle limit head;

[0020] Figure 5 This is a schematic diagram of the left side of the outer wedge block assembly of this utility model;

[0021] Figure 6 This is a cross-sectional view of the front of the outer wedge block assembly of this utility model;

[0022] Figure 7 for Figure 6 A partial schematic diagram of the central linkage slot.

[0023] In the diagram: 1. Hydraulic cylinder; 2. Outer wedge assembly; 21. Outer expansion wedge; 22. Limit head; 23. Linkage slot; 24. Positioning slide; 25. Positioning slider; 26. Positioning spring rod; 3. Inner support wedge; 4. Resistance reduction assembly; 41. Resistance reduction roller; 42. Positioning shaft; 43. Plug; 5. Connecting assembly; 51. Connecting cavity; 52. Conveying pipe; 6. Mounting bracket. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1 to 7As shown, this utility model provides a hydraulic excavator carrying a hydraulic breaker-type rock splitter, including a hydraulic cylinder 1, an inner support wedge 3, and two outer wedge assemblies 2. The upper ends of the two outer wedge assemblies 2 are movably connected to the lower end of the inner cavity of the hydraulic cylinder 1. The upper end of the inner support wedge 3 is sealed and fitted inside the hydraulic cylinder 1. The inner support wedge 3 is located between the facing surfaces of the two outer wedge assemblies 2. Two upper and lower drag-reducing components 4 are movably embedded in the facing surfaces of the two outer wedge assemblies 2. The axis connecting the two drag-reducing components 4 on each outer wedge assembly 2 is parallel to the corresponding side of the inner support wedge 3. The hydraulic cylinder 1 is provided with two left and right connecting components 5, which correspond one-to-one with the outer wedge assemblies 2. The upper end of component 5 extends to the outside of hydraulic cylinder 1 via outer wedge component 2, and the lower end of component 5 extends to the two resistance-reducing components 4 inside outer wedge component 2. Due to the setting of resistance-reducing components 4, under the restriction of limit head 22, etc., the upper and lower sets of resistance-reducing components 4 on the facing surfaces of the two outward expansion wedges 21 can roll and fit against both sides of the outer surface of inner support wedge 3. This ensures that when inner support wedge 3 moves down under the action of hydraulic pressure in hydraulic cylinder 1, it can open the two outward expansion wedges 21 through resistance-reducing components 4, and then split the rock through the outward expansion wedges 21. During this process, as inner support wedge 3 moves down continuously, the contact friction between inner support wedge 3 and outer wedge component 2 can be reduced, thereby achieving the effect of reducing resistance and wear.

[0026] like Figure 1 and Figure 2 As shown, the hydraulic cylinder 1 is externally slidably connected to the mounting bracket 6. The top of the hydraulic cylinder 1 is connected to the upper end of the mounting bracket 6 through a hydraulic hoist. The hydraulic cylinder 1, the outer wedge block assembly 2, and the inner support wedge block 3 are connected to the front end of the excavator boom through the mounting bracket 6.

[0027] like Figure 3 and Figure 4 As shown, the outer wedge block assembly 2 includes an outer expansion wedge block 21 movably connected to the lower end of the hydraulic cylinder 1. The upper end of the outer expansion wedge block 21 is integrally formed with a limiting head 22. The outer expansion wedge block 21 and the limiting head 22 are smoothly connected on the side near the inner support wedge block 3. The two sides of the inner support wedge block 3 are tightly fitted to the side where the two outer expansion wedge blocks 21 and the limiting head 22 are smoothly connected.

[0028] like Figure 3 and Figure 4 As shown, a linkage groove 23 is provided on the outer surface of the limiting head 22 away from the inner support wedge block 3. A positioning spring rod 26 is provided inside the linkage groove 23. The limiting head 22 and the outer expansion wedge block 21 are connected to the hydraulic cylinder 1 through the positioning spring rod 26.

[0029] like Figure 3 and Figure 4As shown, the limiting head 22 has two positioning grooves 24 located on the front and rear sides of the linkage groove 23. The positioning groove 24 is slidably engaged with a positioning slider 25. One end of the positioning slider 25 extends into the linkage groove 23 and is connected to the positioning spring rod 26 through a rotating shaft. Due to the setting of the positioning spring rod 26, it can be ensured that the two outer wedge block assemblies 2 can make adaptive movements as the inner support wedge block 3 moves continuously downward. At the same time, it can also ensure that the two upper and lower resistance-reducing rollers 41 on the facing surfaces of the two outward expansion wedge blocks 21 can fit together with the outer surface of the inner support wedge block 3, thereby ensuring the support of the outer surface of the inner support wedge block 3. Conversely, as the inner support wedge block 3 moves continuously downward, the upper and lower resistance-reducing rollers 41 ensure that the outer wedge block assembly 2 can smoothly expand outward, thereby opening up to split the rock.

[0030] like Figure 5 and Figure 6 As shown, the drag-reducing assembly 4 includes a drag-reducing roller 41 that is movably embedded inside the outer wedge block 21. A positioning shaft 42 is movably sleeved inside the drag-reducing roller 41. Both ends of the positioning shaft 42 are rotatably connected to plugs 43 via bearings. The plugs 43 are sleeved inside the outer wedge block 21. Due to the positioning shaft 42, with the cooperation of the plugs 43, it can be ensured that the drag-reducing roller 41 can rotate stably inside the outer wedge block 21. Pulling out the positioning shaft 42 and the plugs 43 makes it easy for the operator to remove the drag-reducing roller 41 from the side of the outer wedge block 21 near the inner support wedge block 3, so as to replace the drag-reducing roller 41 and ensure its rolling support effect on the inner support wedge block 3.

[0031] like Figure 6 and Figure 7 As shown, the connecting component 5 includes a connecting cavity 51 opened inside the outer wedge 21. The upper end of the connecting cavity 51 extends into the linkage slot 23 and is connected to a conveying pipe 52. The other end of the conveying pipe 52 extends to the outside of the hydraulic cylinder 1. The lower end of the connecting cavity 51 extends to the top of the two drag-reducing rollers 41. Due to the setting of the connecting component 5, clean water or coolant can be injected into the interior of the connecting cavity 51 through the conveying pipe 52, so that clean water can be sprayed out from the drag-reducing rollers 41 to rinse the outer surface of the inner support wedge 3. The coolant that seeps out can cool the lower end of the inner support wedge 3 that has entered the rock through the drag-reducing rollers 41.

[0032] Working principle and usage process of this utility model:

[0033] The equipment is connected to the front end of the excavator boom via the mounting frame 6. The excavator boom controls the movement of the hydraulic cylinder 1, the outer wedge assembly 2, and the inner support wedge 3 as a whole. Then, the hydraulic hoist pushes the hydraulic cylinder 1 to slide down along the inside of the mounting frame 6, pushing the two outer wedge assemblies 2 at its bottom to insert into the borehole. Then, the hydraulic system is started, and the hydraulic pressure in the hydraulic cylinder 1 pushes the inner support wedge 3 down. Then, under the restriction of the positioning spring rod 26, the inner support wedge 3 opens the two outer expansion wedges 21 on the left and right through the two sets of drag-reducing rollers 41. This allows the two outer expansion wedges 21 to support the rock. As the inner support wedge 3 continues to move down, it moves down along the surface of the rolling drag-reducing rollers 41, which can further open the two outer expansion wedges 21 until the rock cracks.

[0034] After continuous operation for a period of time, dirt and gravel will adhere to the outer surfaces of the inner support wedge 3 and the drag-reducing roller 41, as well as the facing surfaces of the two outer wedge components 2. At this time, high-pressure clean water is injected through the conveying pipe 52, and the clean water can be sprayed from the drag-reducing roller 41 to the facing surfaces of the inner support wedge 3 and the outer expansion wedge 21 through the conveying pipe 52, thereby cleaning the outer wedge component 2, the inner support wedge 3 and the drag-reducing component 4.

[0035] After continuous operation for a period of time, the temperature of the outer wedge assembly 2, the inner support wedge 3 and the drag-reducing assembly 4 will increase. At this time, coolant is slowly injected through the delivery pipe 52, and the coolant can penetrate to the surface of the drag-reducing roller 41 through the connecting cavity 51, and then transfer to the outer surface of the inner support wedge 3, thereby cooling the inner support wedge 3 and the drag-reducing assembly 4. When the coolant flows in the connecting cavity 51, it can cool the outer wedge 21.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydraulic excavator carrying a hydraulic breaker rock splitter, comprising a hydraulic cylinder (1), an inner support wedge (3), and two outer wedge assemblies (2), wherein the upper ends of the two outer wedge assemblies (2) are movably connected to the lower end of the inner cavity of the hydraulic cylinder (1), the upper end of the inner support wedge (3) is sealed and fitted inside the hydraulic cylinder (1), and the inner support wedge (3) is located between the opposing surfaces of the two outer wedge assemblies (2), characterized in that: Two upper and lower resistance-reducing components (4) are movably embedded in the opposing surfaces of the two outer wedge block assemblies (2). The axis connecting the two resistance-reducing components (4) on each outer wedge block assembly (2) is parallel to the side corresponding to the inner support wedge block (3). The hydraulic cylinder (1) is provided with two left and right connecting components (5). The two connecting components (5) correspond one-to-one with the outer wedge block assembly (2). The upper end of the connecting component (5) extends through the outer wedge block assembly (2) to the outside of the hydraulic cylinder (1), and the lower end of the connecting component (5) extends to the two resistance-reducing components (4) inside the outer wedge block assembly (2).

2. The hydraulic excavator carrying a hydraulic breaker rock splitter according to claim 1, characterized in that: The hydraulic cylinder (1) is externally slidably connected to a mounting bracket (6). The top of the hydraulic cylinder (1) is connected to the upper end of the mounting bracket (6) via a hydraulic hoist. The hydraulic cylinder (1), the outer wedge block assembly (2), and the inner support wedge block (3) are connected as a whole to the front end of the excavator boom via the mounting bracket (6).

3. A hydraulic excavator carrying a hydraulic breaker rock splitter according to claim 1, characterized in that: The outer wedge assembly (2) includes an outer expansion wedge (21) movably connected to the lower end of the hydraulic cylinder (1). The upper end of the outer expansion wedge (21) is integrally formed with a limiting head (22). The outer expansion wedge (21) and the limiting head (22) are smoothly connected to the side of the inner support wedge (3). The two sides of the inner support wedge (3) are tightly fitted to the side where the two outer expansion wedges (21) and the limiting head (22) are smoothly connected.

4. A hydraulic excavator carrying a hydraulic breaker rock splitter according to claim 3, characterized in that: The outer surface of the limiting head (22) is provided with a linkage slot (23) on the side away from the inner support wedge (3). The linkage slot (23) is provided with a positioning spring rod (26). The limiting head (22) and the outer expansion wedge (21) are connected to the hydraulic cylinder (1) as a whole through the positioning spring rod (26).

5. A hydraulic excavator carrying a hydraulic breaker rock splitter according to claim 4, characterized in that: The limiting head (22) has two positioning grooves (24) located on the front and rear sides of the linkage slot (23). The positioning groove (24) is slidably engaged with a positioning slider (25). One end of the positioning slider (25) extends into the linkage slot (23) and is connected to the positioning spring rod (26) through a rotating shaft.

6. A hydraulic excavator carrying a hydraulic breaker rock splitter according to claim 3, characterized in that: The drag-reducing assembly (4) includes a drag-reducing roller (41) that is movably embedded inside the outer wedge block (21). A positioning shaft (42) is movably sleeved inside the drag-reducing roller (41). Both ends of the positioning shaft (42) are rotatably connected to plugs (43) through bearings. The plugs (43) are sleeved inside the outer wedge block (21).

7. A hydraulic excavator carrying a hydraulic breaker rock splitter according to claim 6, characterized in that: The connecting component (5) includes a connecting cavity (51) opened inside the outward expansion wedge (21). The upper end of the connecting cavity (51) extends into the linkage slot (23) and is connected to a conveying pipe (52). The other end of the conveying pipe (52) extends to the outside of the hydraulic cylinder (1). The lower end of the connecting cavity (51) extends to the top of the two resistance-reducing rollers (41).

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