Grease rotary mechanism for a splitting machine

Abstract

A grease rotary mechanism for splitting machine, including inner ring, outer ring, ball, oil seal, inner ring is arranged in the inside of outer ring, inner ring, outer ring can move relatively, inner wall of inner ring is equipped with internal thread that can cooperate with external thread of outer wall of guide cylinder, outer ring is connected with mounting support, ball is arranged in positioning groove between outer surface of inner ring and inner surface of outer ring, inner wall of inner ring or inner wall of outer ring is provided with two oil seal grooves that are parallel and are arranged at intervals, two oil seals are arranged in two oil seal grooves respectively, outer wall of outer ring is equipped with oil inlet that can be communicated to the inside section of two oil seals, and the end wall of inner ring is equipped with oil outlet that can be communicated to the inside section of two oil seals. The utility model discloses a structure can be stably installed in the guide cylinder outside the rear end of wedge block group, and the oil pipe conveying lubricating grease in the rotation process of wedge block group will not be wound together, also will not be broken, can guarantee that splitting machine works normally.

Description

Technical Field

[0001] This utility model relates to the field of splitting machine technology, and in particular to a grease rotary mechanism for a splitting machine. 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. Manually applying grease requires frequent machine stops, reducing efficiency, increasing worker workload, and causing issues such as uncontrollable application frequency and uneven application. Automatic grease lubrication via a traction oil pipe near the wedge assembly is also problematic. During operation, the wedge assembly rotates frequently, easily causing the oil pipe to become entangled, potentially breaking or cracking, blocking the grease supply and causing leaks, thus affecting the normal operation of the rock splitter. Utility Model Content

[0003] The purpose of this invention is to address the deficiencies of the existing technology by providing a grease rotary mechanism for a rock splitter. This mechanism can be stably installed outside the guide cylinder at the rear end of the wedge assembly. During the rotation of the wedge assembly, the oil pipes that deliver the lubricating grease will not become tangled or break, thus ensuring the normal operation of the rock splitter.

[0004] The technical solution adopted by this utility model to achieve the above-mentioned objective is as follows: a grease rotary mechanism for a splitting machine, comprising 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, and 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.

[0005] 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.

[0006] 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.

[0007] 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, and the two oil seals are respectively provided 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 side section of the two oil seals, and the end wall of the inner ring is provided with an oil outlet that can connect to the inner side section of the two oil seals. 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.

[0008] The present invention provides a grease rotary mechanism for a rock splitter, which has the following advantages: the grease rotary mechanism is configured as an inner ring and an outer ring, which can move relative to each other. The inner wall of the inner ring is connected to the outer wall of the guide cylinder, and the outer ring is connected to the mounting bracket through a connecting device. When the rock splitter's large oil cylinder rotates during the rotation of the wedge block assembly, it will drive the inner ring to rotate together, while the outer ring, because it is fixed to the mounting bracket, will not rotate together. Thus, the grease outlet pipe connected to the inner ring will not be entangled or broken, ensuring the normal operation of the rock splitter.

[0009] The following description, in conjunction with the accompanying drawings and embodiments, further illustrates a grease-returning mechanism for a splitting machine according to the present invention. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of a first embodiment of the grease rotary mechanism for a rock splitter according to this utility model; Figure 2 yes Figure 1 The diagram shows a grease-rotating mechanism installed at the rear end of the wedge assembly of the splitter. Figure 3 yes Figure 1 This is a schematic diagram of a second embodiment of the grease rotary mechanism for a splitting machine according to this utility model; Figure 4 yes Figure 1 This is a schematic diagram of a third embodiment of the grease rotary mechanism for a rock splitter according to this utility model; Explanation of the reference numerals for main components: 1-Wedge mounting base, 2-Splitter large cylinder, 3-Guide cylinder, 4-Grease rotation mechanism, 5-Grease inlet pipe, 6-Oil inlet hole, 7-Through hole, 8-Grease outlet pipe, 9-Side wedge, 10-Oil outlet hole, 11-Main oil passage, 12-Intermediate wedge, 13-Mounting bracket, A-Outer ring, B-Inner ring, C-Oil seal, D-Ball bearing. Detailed Implementation Example 1:

[0011] like Figure 1 , 2 As shown, this utility model discloses a grease rotary mechanism for a rock splitter, installed at the rear end of the wedge assembly of the rock splitter, which automatically supplies lubricating grease to the wedge assembly. The wedge assembly of the rock splitter includes a central wedge 12, two side wedges 9, and a wedge mounting base 1. One central wedge 12 and two side wedges 9 are installed in the wedge mounting base 1. The rear end of the wedge mounting base 1 is connected to a guide cylinder 3, and the rear end of the guide cylinder 3 is connected to the large hydraulic cylinder 2 of the rock splitter. The large hydraulic cylinder 2 provides driving force for the forward and backward movement of the central wedge 12. The overall structure of the wedge assembly and the connection between the guide cylinder 3 at the rear end of the wedge mounting base 1 and the large hydraulic cylinder 2 are existing technologies and will not be described in detail here. Figure 2 The direction indicated by the middle arrow F is forward.

[0012] This utility model discloses a grease-returning mechanism for a rock splitter, such as... Figure 1 , 2 As shown, the system 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 mates with the external thread of the guide cylinder 3. The outer ring A is connected to the mounting bracket 13 on the lower side of the large hydraulic cylinder 2 of the splitter via a connecting device. The outer ring A and the mounting bracket 13 are integrated, and there is no relative movement between them. The balls 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-apart oil seal grooves, with two oil seals respectively located in the two oil seal grooves. The outer wall of the outer ring has an oil inlet that connects to the inner sections of the two oil seals; that is, the oil inlet connects from the outer wall of the outer ring inwards 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 can connect to the inner side of the two oil seals, that is, the oil outlet connects from the inner ring end wall to the inner side of the area enclosed by the two oil seals.

[0013] In this embodiment, the grease rotary mechanism 4 is as follows: Figure 1As 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 3. The outer ring A is fixed on the mounting bracket 13. 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 13. Therefore, the grease outlet pipe 8 connected to the inner ring B will not be entangled or broken.

[0014] like Figure 2 As shown, the grease rotary mechanism 4 is installed outside the guide cylinder 3 at the rear end of the wedge mounting base 1. Lubricating oil passages are respectively provided inside the two side wedges 9. Each side wedge 9 includes a main oil passage 11, an oil inlet 6, and an oil outlet 10. The main oil passage 11 extends from the rear end to the front end inside the side wedge 9. The oil inlet 6 extends inward from the outer surface of the rear end of the side wedge 9 and communicates with the main oil passage 11. The side wall of the wedge mounting base 1 has through holes 7 corresponding to the positions of the oil inlet 6. Multiple oil outlets 10 extend outward from the inner surface of the side wedges 9 and communicate with the main oil passage 11. One end of the grease outlet pipe 8 is connected to the oil outlet of the grease rotary mechanism 4, and the other end of the grease outlet pipe 8 can pass through the through hole 7 in the side wall of the wedge mounting base 1 and connect to the oil inlet 6 of the side wedge 9. The grease inlet pipe 5 of the grease rotary mechanism 4 is connected to an automatic oil supply device (not shown in the figure). Example 2:

[0015] like Figure 3 As shown, the grease rotation mechanism in this embodiment differs from that in Embodiment 1 in that: the inner wall of the outer ring A is provided with two parallel and spaced-apart 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:

[0016] like Figure 4As shown, the grease rotation mechanism in this embodiment differs from that in Embodiment 1 in that: the inner wall of the outer ring A is provided with two parallel and spaced-apart 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 outside 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.

[0017] 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. A grease-returning mechanism for a rock splitter, characterized in that, It 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) can 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 (3). The outer ring (A) is connected to the mounting bracket (13) 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 (F) 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 (E) that can connect to the inner section of the two oil seals.

2. The grease-returning mechanism for a rock splitter as described in claim 1, 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.

3. The grease-returning mechanism for a rock splitter as described in claim 1, 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.

4. The grease-returning mechanism for a rock splitter as described in claim 1, 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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