Automatic lubricating device for wedge block group of splitting machine

Abstract

A kind of automatic lubricating device of wedge block group of splitting machine is arranged on wedge block group and its rear end guiding cylinder of splitting machine, and the automatic lubricating device includes lubricating oil channel and lubricating grease rotary mechanism, lubricating oil channel is arranged on two side wedge blocks respectively, and the lubricating oil channel on each side wedge block includes main oil channel, oil inlet hole and oil outlet hole respectively, main oil channel is formed by extending from the rear end to the front end in the inside of side wedge block, oil inlet hole is communicated with the rear end of main oil channel by extending from the surface of the rear end of side wedge block to the inside, and multiple oil outlet holes are communicated with main oil channel by extending from the inside surface of side wedge block to the outside, lubricating grease rotary mechanism is connected with guiding cylinder in the rear end of wedge block mounting base, the oil inlet of lubricating grease rotary mechanism is connected with oil supply device, and the oil outlet of lubricating grease rotary mechanism is connected with oil inlet hole of side wedge block through lubricating grease oil outlet pipe. The present application can automatically and uniformly add lubricating grease without manual application, which not only solves the problem of safety hazard but also greatly improves the service life of wedge block group of splitting machine.

Description

Technical Field

[0001] This utility model relates to the field of rock splitting machine technology, and in particular to an automatic lubrication device for rock splitting machine wedge block assembly. Background Technology

[0002] A rock splitter is a device used to split hard materials such as rock and concrete, and is widely used in construction, engineering, and mining. The rock splitter works by having the central wedge push forward against the adjacent wedges in its wedge assembly. The forward thrust of the central wedge is converted into a radial splitting force, separating the hard material. During operation, the relative motion between the central and adjacent wedges creates significant friction, leading to wear and heat generation, which can severely impact the lifespan of the wedge assembly. Therefore, frequent grease lubrication of the central and adjacent wedges is necessary. However, currently, there is a lack of automatic grease lubrication devices for rock splitter wedge assemblies. Manual application of grease—brushing or injecting it onto the surfaces and gaps of the central and adjacent wedges—requires frequent machine shutdowns, reducing efficiency, increasing worker workload, and causing problems such as uncontrollable application frequency and uneven application. This results in a shortened lifespan of the wedge assembly and increased replacement costs. In addition, the environment in which the rock splitter operates is relatively harsh, with risks of falling rocks and collapses. Applying lubricant to workers poses a safety hazard and can easily lead to accidental injury or death. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of the existing technology by providing an automatic lubrication device for the wedge block assembly of a rock splitter. This device can automatically and evenly apply grease without manual application, thus solving the safety hazard problem and significantly improving the service life of the wedge block assembly of the rock splitter.

[0004] The technical solution adopted by this utility model to achieve the above-mentioned objective is as follows: an automatic lubrication device for a rock splitter wedge assembly, which is installed on the rock splitter wedge assembly and the rear guide cylinder of the wedge assembly. The rock splitter wedge assembly includes a middle wedge, side wedges, and a wedge mounting base. One middle wedge and two side wedges are installed in the wedge mounting base. The automatic lubrication device includes a lubricating oil passage and a grease rotary mechanism. The lubricating oil passage is respectively provided on the two side wedges. The lubricating oil passage on each side wedge includes a main oil passage, an oil inlet hole, and an oil outlet hole. The main oil passage extends from the rear end to the front end inside the side wedge. The oil inlet hole is formed by the side wedge. The outer wall surface at the rear end extends inward to connect with the main oil passage. The side wall of the wedge mounting base is provided with a through hole corresponding to the position of the oil inlet. The oil outlet extends outward from the inner surface of the adjacent wedge to connect with the main oil passage. The inner surface of each adjacent wedge is provided with multiple oil outlet holes arranged at intervals. Each oil outlet hole is connected with the main oil passage. The grease rotation mechanism is connected to the guide cylinder at the rear end of the wedge mounting base. The oil inlet of the grease rotation mechanism is connected to the oil supply device through a pipeline. The oil outlet of the grease rotation mechanism is connected to one end of the grease outlet pipe. The other end of the grease outlet pipe passes through the through hole in the side wall of the wedge mounting base and connects to the oil inlet of the adjacent wedge.

[0005] A further technical solution of this utility model is: the oil outlet hole of the side wedge extends vertically outward from the inner surface of the side wedge and communicates with the main oil passage, and the spacing between adjacent oil outlet holes on the same side wedge is equal.

[0006] A further technical solution of this utility model is: the oil outlet hole of the side wedge extends vertically outward from the inner surface of the side wedge and communicates with the main oil passage, and the spacing between adjacent oil outlet holes on the same side wedge is not equal.

[0007] A further technical solution of this utility model is: the automatic oil supply device includes a computer controller, an air compressor, an automatic control air valve, and a pneumatic grease pump. The computer controller is connected to the control terminal of the automatic control air valve, the air inlet of the automatic control air valve is connected to the air compressor, the air outlet of the automatic control air valve is connected to the pneumatic grease pump, and the pneumatic grease pump is then connected to the oil inlet of the grease rotary mechanism.

[0008] A further technical solution of this utility model is as follows: the grease rotary mechanism includes an inner ring, an outer ring, balls, and oil seals. The inner ring is disposed inside the outer ring, and the inner and outer rings can move relative to each other. The inner wall of the inner ring is provided with an internal thread that can cooperate with the external thread of the outer wall of the guide cylinder. The outer ring is connected to the mounting bracket through a connecting device. The balls are disposed in a positioning groove between the outer surface of the inner ring and the inner surface of the outer ring. The outer wall of the inner ring or the inner wall of the outer ring is provided with two parallel and spaced oil seal grooves. The two oil seals are respectively disposed in the two oil seal grooves. The outer wall of the outer ring is provided with an oil inlet that can connect to the inner sections of the two oil seals. The end wall of the inner ring is provided with an oil outlet that can connect to the inner sections of the two oil seals.

[0009] A further technical solution of this utility model is: the outer wall of the inner ring is provided with two parallel and spaced oil seal grooves, the two oil seals are respectively provided in the two oil seal grooves, and the positioning groove of the positioning ball is provided between the outer surface of the inner ring and the inner surface of the outer ring of the inner side section of the two oil seals.

[0010] A further technical solution of this utility model is: the inner wall of the outer ring is provided with two parallel and spaced oil seal grooves, the two oil seals are respectively provided in the two oil seal grooves, and the positioning groove of the positioning ball is provided between the outer surface of the inner ring and the inner surface of the outer ring of the inner side section of the two oil seals.

[0011] A further technical solution of this utility model is: the inner wall of the outer ring is provided with two parallel and spaced oil seal grooves, the two oil seals are respectively provided in the two oil seal grooves, and the positioning groove of the positioning ball is provided between the outer surface of the inner ring and the inner surface of the outer ring on the outer side of the two oil seals.

[0012] This utility model discloses an automatic lubrication device for a rock splitter wedge assembly, which has the following beneficial effects: By setting lubrication oil channels on the two side wedges, and connecting a grease rotary mechanism to the guide cylinder on the rear side of the wedge mounting base, the automatic oil supply device automatically injects grease into the lubrication oil channels through the grease rotary mechanism. Multiple oil outlet holes are provided on the inner surface of the two side wedges. During the operation of the rock splitter, the automatic oil supply device can inject lubricating oil into the lubrication oil channels, and the lubricating oil flows out from the oil outlet holes, so that the grease is evenly applied between the two side wedges and the middle wedge, achieving automatic lubrication of the side wedges and the middle wedges. This effectively reduces the friction and wear between the middle wedges and the side wedges, eliminating the need for manual application. It not only solves the safety hazard problem, but also significantly improves the service life of the rock splitter wedge assembly and reduces the labor intensity of workers.

[0013] The automatic lubrication device for a splitting machine wedge block assembly according to the present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the wedge block assembly, the grease rotary mechanism, the guide cylinder, and the large oil cylinder of the splitter in an automatic lubrication device for the wedge block assembly of a splitter according to this utility model. Figure 2 This is a schematic diagram showing the connection between an automatic lubrication device and a control device for a rock splitter wedge assembly according to this utility model. Figure 3 This is a cross-sectional enlarged view of a first embodiment of the grease rotary mechanism of an automatic lubrication device for a splitter wedge block assembly according to this utility model; Figure 4 This is a cross-sectional enlarged view of Embodiment 2 of the grease rotary mechanism of the automatic lubrication device for the wedge block assembly of a rock splitter according to this utility model; Figure 5 This is a cross-sectional enlarged view of Embodiment 3 of the grease rotary mechanism of the automatic lubrication device for the wedge block assembly of a rock splitter according to this utility model; Explanation of reference numerals for main parts: 1-Mounting bracket, 2-Main hydraulic cylinder of splitter, 3-Rotating motor, 4-Grease rotation mechanism, 5-Side wedge, 6-Oil outlet, 7-Intermediate wedge, 8-Grease inlet pipe, 9-Grease outlet pipe, 10-Pneumatic grease pump, 11-Air inlet pipe, 12-Air compressor, 13-Automatic control valve, 14-Wire harness one, 15-Computer controller, 16-Wire harness two, 17-Hydraulic valve, 18-Hydraulic pump, 19-Wedge mounting base, 20-Guide cylinder, 21-Main oil passage, 22-Oil inlet, 23-Through hole, A-Outer ring, B-Inner ring, C-Oil seal, D-Ball bearing. Detailed Implementation Example 1:

[0015] like Figures 1 to 3 As shown, this utility model discloses an automatic lubrication device for a rock splitter's wedge assembly. The device is installed on the wedge assembly and the rear guide cylinder 20 of the wedge assembly. The wedge assembly includes a central wedge 7, two side wedges 5, and a wedge mounting base 19. One central wedge 7 and two side wedges 5 are installed in the wedge mounting base 19, with the two side wedges 5 symmetrically arranged on both sides of the central wedge 7. The positioning of the central wedge 7 and the two side wedges 5 within the wedge mounting base 19 is existing technology and will not be described in detail here. The rear end of the wedge mounting base 19 is connected to the guide cylinder 20, and the rear end of the guide cylinder 20 is connected to the large hydraulic cylinder 2 of the rock splitter. The connection between the wedge mounting base 19 and the guide cylinder 20, and the connection between the guide cylinder 20 and the large hydraulic cylinder 2 of the rock splitter, are also existing technologies and will not be described in detail here. The large hydraulic cylinder 2 of the rock splitter provides the driving force for the forward and backward movement of the central wedge 7. How the large hydraulic cylinder 2 drives the forward and backward movement of the central wedge 7 is also existing technology and will not be described in detail here. Figure 1 The direction indicated by the middle arrow F is forward.

[0016] like Figure 1 , Figure 2As shown, the automatic lubrication device includes lubricating oil passages and a grease rotary mechanism 4. The lubricating oil passages are respectively located on two side wedges 5. Each side wedge 5 has a main oil passage 21, an oil inlet 22, and an oil outlet 6. The main oil passage 21 extends from the rear end to the front end inside the side wedge 5 and is straight. The oil inlet 22 extends inward from the outer surface of the rear end of the side wedge 5 and communicates with the main oil passage 21. The wedge mounting base 19 has through holes 23 on its side wall corresponding to the position of the oil inlet 22. The oil outlet 6 extends outward from the inner surface of the side wedge 5 and communicates with the main oil passage 21. Each side wedge 5 has multiple spaced-apart oil outlets 6 on its inner surface, and each oil outlet 6 communicates with the main oil passage 21. In this embodiment, the oil outlet 6 of the side wedge 5 extends vertically outward from the inner surface of the side wedge 5 and communicates with the main oil passage 21. Each oil outlet 6 is perpendicular to the main oil passage 21, and the diameter of the main oil passage 21 is larger than the diameter of the oil outlet 6. The spacing between adjacent oil outlets 6 on the same side wedge 5 is equal. For ease of processing, the front and rear ends of the main oil passage 21 of the side wedge 5 penetrate through the front and rear end faces of the side wedge 5. In use, a plug (not shown in the figure) is used to block the front and rear ends of the main oil passage 21, so that the grease in the main oil passage 21 can only flow out from the oil outlet 6. As a variation of this utility model, multiple oil inlets can also be provided on the rear side of the side wedge. Each oil inlet only needs to communicate with the main oil passage. The spacing between adjacent oil outlets on the same side wedge can also be unequal, as long as the lubrication requirements between the middle wedge and the side wedge are met.

[0017] like Figure 1 , Figure 2 As shown, the grease rotary mechanism 4 is connected to the guide cylinder 20 at the rear end of the wedge mounting base 19. The oil inlet of the grease rotary mechanism 4 is connected to the oil supply device through a pipeline, and the oil outlet of the grease rotary mechanism 4 is connected to one end of the grease outlet pipe 9. The other end of the grease outlet pipe 9 passes through the through hole 23 on the side wall of the wedge mounting base 19 and connects to the oil inlet 22 of the adjacent wedge 5. The automatic oil supply device includes a computer controller 15, an air compressor 12, an automatic control valve 13, and a pneumatic grease pump 10. The computer controller 15 is connected to the control end of the automatic control valve 13. The air inlet of the automatic control valve 13 is connected to the air compressor 12, and the air outlet of the automatic control valve 13 is connected to the pneumatic grease pump 10. The pneumatic grease pump 10 is then connected to the oil inlet of the grease rotary mechanism 4. The computer controller 15, air compressor 12, automatic control valve 13, and pneumatic grease pump 10 are all existing equipment, and their structure and function will not be described here.

[0018] The grease rotary mechanism 4 includes an inner ring B, an outer ring A, balls D, and an oil seal C. The inner ring B is located inside the outer ring A, and the inner ring B and outer ring A can move relative to each other. The inner wall of the inner ring B has an internal thread G that can mate with the external thread of the guide cylinder 20. The outer ring A is connected to the mounting bracket 1 on the lower side of the large oil cylinder 2 of the splitter via a connecting device. The outer ring A and the mounting bracket 1 are integrated and will not move relative to each other. The balls D are located in a positioning groove between the outer surface of the inner ring and the inner surface of the outer ring. The outer wall of the inner ring or the inner wall of the outer ring has two parallel and spaced oil seal grooves, and the two oil seals are respectively located in the two oil seal grooves. The outer wall of the outer ring has an oil inlet that connects to the inner side of the two oil seals, that is, the oil inlet connects from the outer wall of the outer ring inward to the inner side of the area enclosed by the two oil seals. The inner ring end wall is provided with an oil outlet that connects to the inner side of the two oil seals; that is, the oil outlet connects inward from the inner ring end wall to the inner side of the area enclosed by the two oil seals. In this embodiment, the grease rotary mechanism is as follows: Figure 3 As shown, the outer wall of the inner ring B has two parallel and spaced-apart oil seal grooves H. Two oil seals C are respectively disposed in the two oil seal grooves H. The outer wall of the outer ring A has an oil inlet F that connects to the inner sections of the two oil seals C. The end wall of the inner ring B has an oil outlet E that connects to the inner sections of the two oil seals. The positioning groove of the positioning ball D is disposed between the outer surface of the inner ring and the inner surface of the outer ring of the inner section of the two oil seals. The positioning groove is formed by the outer surface of the inner ring being recessed inward and the inner surface of the outer ring being recessed outward relative to the position. The ball D is positioned in the positioning groove. A closed oil passage is formed between the oil inlet F and the oil outlet E. The working principle of the grease rotation mechanism 4: The grease enters from the oil inlet F on the outer ring A, enters the inner ring B through the oil passage, and exits from the oil outlet E. The inner ring B has two oil seals C evenly distributed on the top and bottom to seal the grease. The internal thread G on the inner wall of the inner ring B is connected to the external thread of the guide cylinder 20. The outer ring A is fixed on the mounting bracket 1. When the large oil cylinder 2 of the splitter rotates, it will drive the inner ring to rotate together, but the outer ring A will not rotate together because it is fixed to the mounting bracket 1. Therefore, the grease outlet pipe 9 connected to the inner ring B will not be entangled or broken.

[0019] Before operation, install the middle wedge 7 and the side wedges 5 in the wedge mounting base 19. Connect the guide cylinder 20 to the rear end of the wedge mounting base 19. Connect the grease rotary mechanism 4 to the guide cylinder 20, with the inner thread of the inner ring connecting to the outer thread of the guide cylinder 20. Then connect the large hydraulic cylinder 2 of the splitter to the guide cylinder 20, and the outer ring to the mounting bracket 1. Next, install the various oil pipes, automatic oil supply device, and power unit, such as... Figure 2 As shown.

[0020] Please see Figure 2As shown, when the computer controller 15 detects that the middle wedge 7 moves forward, the computer controller 15 issues a command to open the automatic control air valve 13 through the wiring harness 14, so that the compressed air of the air compressor 12 is delivered to the pneumatic grease pump 10 through the air inlet pipe 11, thereby injecting the grease into the grease rotary mechanism 4 through the grease inlet pipe 8. After the grease rotary mechanism 4 is filled with grease, it is injected into the lubrication channel of the adjacent wedge 5 through the grease outlet pipe 9. The grease comes out from the multiple oil outlet holes 6 of the two adjacent wedges 5, and the adjacent wedges 5 and the middle wedge 7 are lubricated.

[0021] Please see Figure 2 As shown, when it is necessary to control the splitting direction, the computer controller 15 sends a command to open the hydraulic valve 17 through the wiring harness 16, allowing the high-pressure oil from the hydraulic pump 18 to enter the rotary motor 3, thereby driving the large hydraulic cylinder 2 of the splitter to rotate. The internal thread on the inner ring of the grease rotary mechanism 4 is connected to the guide cylinder 20, and the outer ring of the grease rotary mechanism 4 is fixed on the mounting bracket 1. When the large hydraulic cylinder 2 of the splitter rotates, it will drive the inner ring to rotate together, while the outer ring, because it is fixed to the mounting bracket 1, will not rotate together, thus preventing the grease outlet pipe 9 connected to the inner ring from tangling and breaking. Example 2:

[0022] This embodiment differs slightly from Embodiment 1 in its grease return mechanism; the rest of the structure is identical and will not be described further. In this embodiment, as... Figure 4 As shown, the difference in the grease rotary mechanism is that: the inner wall of the outer ring A has two parallel and spaced oil seal grooves H, and two oil seals C are respectively disposed in the two oil seal grooves H. The positioning groove of the positioning ball D is disposed between the outer surface of the inner ring and the inner surface of the outer ring of the inner side section of the two oil seals. The working principle of this embodiment is the same as that of Embodiment 1, and will not be described again here. Example 3:

[0023] This embodiment differs slightly from Embodiment 1 in its grease return mechanism; the rest of the structure is identical and will not be described further. In this embodiment, as... Figure 5 As shown, the difference in the grease rotary mechanism is that: the inner wall of the outer ring A has two parallel and spaced oil seal grooves H, and two oil seals C are respectively disposed in the two oil seal grooves H. The positioning groove of the positioning ball D is disposed between the outer surface of the inner ring and the inner surface of the outer ring on the outer side of the two oil seals. The working principle of this embodiment is the same as that of Embodiment 1, and will not be described again here.

[0024] The above embodiments are merely preferred embodiments of this utility model. The structure of this utility model is not limited to the forms listed in the above embodiments. Any modifications, equivalent substitutions, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An automatic lubrication device for a rock splitter wedge assembly, disposed on the wedge assembly and the rear guide cylinder of the rock splitter, wherein the wedge assembly of the rock splitter includes a middle wedge (7), two side wedges (5), and a wedge mounting base (19), wherein one middle wedge (7) and two side wedges (5) are mounted in the wedge mounting base (19), characterized in that, The automatic lubrication device includes a lubricating oil passage and a grease rotary mechanism (4). The lubricating oil passages are respectively set on two side wedges (5). Each side wedge (5) has a main oil passage (21), an oil inlet (22) and an oil outlet (6). The main oil passage (21) extends from the rear end of the side wedge (5) to the front end. The oil inlet (22) extends from the outer wall surface of the side wedge (5) to the rear end and communicates with the main oil passage (21). The wedge mounting base (19) has a through hole (23) on its side wall corresponding to the position of the oil inlet (22). The oil outlet (6) extends from the inner surface of the side wedge (5) to the... The outer extension is connected to the main oil passage (21). Each side wedge (5) has multiple oil outlet holes (6) arranged at intervals on its inner surface. Each oil outlet hole (6) is connected to the main oil passage (21). The grease rotation mechanism (4) is connected to the guide cylinder (20) at the rear end of the wedge mounting base (19). The oil inlet of the grease rotation mechanism (4) is connected to the automatic oil supply device through a pipeline. The oil outlet of the grease rotation mechanism (4) is connected to one end of the grease outlet pipe (9). The other end of the grease outlet pipe (9) passes through the through hole (23) on the side wall of the wedge mounting base (19) and is connected to the oil inlet hole (22) of the side wedge (5).

2. The automatic lubrication device for a rock splitter wedge assembly as described in claim 1, characterized in that, The oil outlet (6) of the side wedge (5) extends vertically outward from the inner surface of the side wedge (5) and connects with the main oil passage (21). The distance between adjacent oil outlets (6) on the same side wedge (5) is equal.

3. The automatic lubrication device for a rock splitter wedge assembly as described in claim 1, characterized in that, The oil outlet (6) of the side wedge (5) extends vertically outward from the inner surface of the side wedge (5) and connects with the main oil passage (21). The distance between adjacent oil outlets (6) on the same side wedge (5) is not equal.

4. The automatic lubrication device for a rock splitter wedge assembly as described in claim 1, characterized in that, The automatic oil supply device includes a computer controller (15), an air compressor (12), an automatic control valve (13), and a pneumatic grease pump (10). The computer controller (15) is connected to the control terminal of the automatic control valve (13). The air inlet of the automatic control valve (13) is connected to the air compressor (12). The air outlet of the automatic control valve (13) is connected to the pneumatic grease pump (10). The pneumatic grease pump (10) is then connected to the oil inlet of the grease rotary mechanism (4).

5. The automatic lubrication device for a rock splitter wedge assembly as described in claim 1, characterized in that, The grease rotation mechanism (4) includes an inner ring (B), an outer ring (A), a ball (D), and an oil seal (C). The inner ring (B) is located inside the outer ring (A). The inner ring (B) and the outer ring (A) move relative to each other. The inner wall of the inner ring (B) is provided with an internal thread that can cooperate with the external thread of the outer wall of the guide cylinder (20). The outer ring (A) is connected to the mounting bracket (1) through a connecting device. The ball (D) is located in the positioning groove between the outer surface of the inner ring (B) and the inner surface of the outer ring (A). The outer wall of the inner ring (B) or the inner wall of the outer ring (A) is provided with two parallel and spaced oil seal grooves. The two oil seals (C) are respectively located in the two oil seal grooves. The outer wall of the outer ring (A) is provided with an oil inlet that can connect to the inner section of the two oil seals. The end wall of the inner ring (B) is provided with an oil outlet that can connect to the inner section of the two oil seals.

6. The automatic lubrication device for a rock splitter wedge assembly as described in claim 5, characterized in that, The outer wall of the inner ring (B) is provided with two parallel and spaced oil seal grooves. Two oil seals (C) are respectively provided in the two oil seal grooves. The positioning groove of the positioning ball (D) is provided between the outer surface of the inner ring (B) and the inner surface of the outer ring (A) of the inner side section of the two oil seals.

7. The automatic lubrication device for a rock splitter wedge assembly as described in claim 5, characterized in that, The inner wall of the outer ring (A) is provided with two parallel and spaced oil seal grooves. Two oil seals (C) are respectively provided in the two oil seal grooves. The positioning groove of the positioning ball (D) is provided between the outer surface of the inner ring (B) and the inner surface of the outer ring (A) of the inner side section of the two oil seals.

8. The automatic lubrication device for a rock splitter wedge assembly as described in claim 5, characterized in that, The inner wall of the outer ring (A) is provided with two parallel and spaced oil seal grooves. Two oil seals (C) are respectively provided in the two oil seal grooves. The positioning groove of the positioning ball (D) is provided between the outer surface of the inner ring (B) and the inner surface of the outer ring (A) on the outer side of the two oil seals.

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