Hydraulic oil seal structure of drilling and cracking integrated machine

Abstract

The utility model discloses a kind of hydraulic oil seal structure of drilling and splitting integrated machine, belong to drilling and splitting integrated machine technical field, including drive cylinder, the piston main body is equipped in drive cylinder, and the piston main body one side is connected with extrusion rod, still include oil seal cylinder and crushing module, the oil seal cylinder one side is detachably installed with drive cylinder one side by bolt, the crushing module one side is connected with the oil seal cylinder one side, the protective cover is equipped in the oil seal cylinder;In the utility model, by installing the two mounting rings respectively in the piston main body one side and the crushing module one side, then the rubber ring of protective cover two sides is respectively attached with two mounting ring one side, finally fixed ring is placed to rubber ring movement, and fixed by fixed bolt, so that protective cover shields oil seal cylinder inner wall, avoid dust and broken stone into adhere in oil seal cylinder inner wall, avoid piston main body and oil seal cylinder inner wall friction broken stone to cause oil seal cylinder inner wall damage influence tightness.

Description

Technical Field

[0001] This utility model belongs to the technical field of drilling and splitting integrated machines, and particularly relates to a hydraulic oil seal structure for drilling and splitting integrated machines. Background Technology

[0002] The drilling and splitting machine is a mechanical device that integrates drilling and splitting functions. It is mainly used for rock mining and crushing operations. Its core working principle is to achieve static rock crushing through a hydraulic system. It is safe, environmentally friendly and efficient.

[0003] However, in actual use, the drilling and splitting machine uses the excavator's oil circuit to drive the hydraulic rock drill to drill holes. Then, the rotating splitting head is inserted into the hole, and the rock is split from the inside using the hydraulic principle. Since the driving piston needs to push the splitting head to contract, the splitting head needs to contract to the inside, which causes the splitting head to carry dust or gravel into it. This causes the dust or gravel to adhere to the inner wall of the cylinder, resulting in the piston rubbing against the dust and gravel, which affects the sealing effect. Utility Model Content

[0004] The purpose of this utility model is to solve the problem of dust entering and adhering to the inner wall of the cylinder, causing piston movement and friction damage, thus affecting the seal, and to propose a hydraulic oil seal structure for an integrated drilling and cracking machine.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a hydraulic oil seal structure for an integrated drilling and fracturing machine, comprising a drive cylinder, a piston body inside the drive cylinder, and a pressing rod connected to one side of the piston body, characterized in that it further comprises an oil seal cylinder and a crushing module, one side of the oil seal cylinder being detachably installed to one side of the drive cylinder by bolts, one side of the crushing module being connected to one side of the oil seal cylinder, a protective cover being provided inside the oil seal cylinder, and rubber rings being connected to both sides of the protective cover, and both rubber rings being connected to one side of the piston body and one side of the crushing module respectively by fixing components, thereby protecting the inner wall of the oil seal cylinder from dust adhesion.

[0006] As a further description of the above technical solution:

[0007] One side of the rubber ring is fitted with an mounting ring, and one side of each mounting ring is fitted with one side of the piston body and one side of the crushing module, respectively.

[0008] As a further description of the above technical solution:

[0009] The rubber ring is attached to a fixing ring on the side away from the mounting ring. Multiple holes are provided in the fixing ring, the rubber ring, and the mounting ring. Fixing bolts are provided in the corresponding holes. The fixing bolts on both sides are connected to one side of the piston body and one side of the crushing module, respectively.

[0010] As a further description of the above technical solution:

[0011] The crushing module has a crushing rod on one side, and the outer wall of the extrusion rod is in contact with the inner wall of the two crushing rods.

[0012] As a further description of the above technical solution:

[0013] The outer wall of the protective cover is provided with corrugated grooves, and the protective cover is made of flexible rubber.

[0014] As a further description of the above technical solution:

[0015] The piston body has two sealing grooves on its outer wall, and sealing rings are installed in the sealing grooves.

[0016] As a further description of the above technical solution:

[0017] The outer wall of the sealing ring is in contact with and slidably connected to the inner wall of the oil seal cylinder, and two reinforcing grooves are provided on the outer wall of the rubber ring.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0019] 1. In this utility model, by setting a protective cover, two mounting rings are respectively installed on one side of the piston body and one side of the crushing module. Then, the rubber rings on both sides of the protective cover are respectively attached to one side of the two mounting rings. Finally, the fixing ring is placed on the rubber ring and fixed by fixing bolts. This makes the protective cover shield the inner wall of the oil seal cylinder, preventing dust and gravel from entering and adhering to the inner wall of the oil seal cylinder, and preventing the piston body from rubbing against the inner wall of the oil seal cylinder, which would damage the inner wall of the oil seal cylinder and affect the sealing performance.

[0020] 2. In this utility model, by setting a sealing ring, two inclined reinforcing grooves are provided on the outer wall of the sealing ring, and the opening of the reinforcing groove is located on one side of the drive cylinder. The hydraulic oil in the drive cylinder is squeezed into the reinforcing groove, so that the pressure of the hydraulic oil squeezes the thin wall of the reinforcing groove, making the thin wall of the reinforcing groove fit tightly with the inner wall of the oil seal cylinder, thereby improving the sealing effect between the piston body and the oil seal cylinder. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of a hydraulic oil seal structure for an integrated drilling and fracturing machine proposed in this utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of the oil seal cylinder of the hydraulic oil seal structure of the drilling and fracturing integrated machine proposed in this utility model;

[0023] Figure 3 This utility model proposes a hydraulic oil seal structure for an integrated drilling and fracturing machine. Figure 2 Enlarged structural diagram of section A;

[0024] Figure 4 This is a schematic diagram of the sealing groove structure of the hydraulic oil seal structure of the drilling and fracturing integrated machine proposed in this utility model;

[0025] Figure 5 This is a schematic diagram of the sealing ring structure of the hydraulic oil seal structure of the drilling and fracturing integrated machine proposed in this utility model;

[0026] Figure 6 This is a front view cross-sectional view of the sealing ring structure of the hydraulic oil seal structure of the drilling and fracturing integrated machine proposed in this utility model.

[0027] Legend: 1. Drive cylinder; 2. Oil seal cylinder; 3. Crushing module; 4. Piston body; 5. Crushing rod; 6. Extrusion rod; 7. Protective cover; 8. Rubber ring; 9. Mounting ring; 10. Fixing ring; 11. Fixing bolt; 12. Sealing ring; 13. Reinforcing groove; 14. Sealing groove. Detailed Implementation

[0028] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1-6 This utility model provides a technical solution: a hydraulic oil seal structure for an integrated drilling and fracturing machine, including a drive cylinder 1, a piston body 4 inside the drive cylinder 1, and a pressing rod 6 connected to one side of the piston body 4. The structure is characterized by further including an oil seal cylinder 2 and a crushing module 3. One side of the oil seal cylinder 2 is detachably installed to one side of the drive cylinder 1 via bolts, and one side of the crushing module 3 is connected to one side of the oil seal cylinder 2. A protective cover 7 is provided inside the oil seal cylinder 2, and rubber rings 8 are connected to both sides of the protective cover 7. Both rubber rings 8 are connected to one side of the piston body 4 and one side of the crushing module 3 respectively via fixing components. The protective cover 7 protects the inner wall of the oil seal cylinder 2. To prevent dust from adhering, a mounting ring 9 is attached to one side of the rubber ring 8, and one side of each of the two mounting rings 9 is attached to one side of the piston body 4 and one side of the crushing module 3, respectively. A fixing ring 10 is attached to the side of the rubber ring 8 away from the mounting ring 9. Multiple holes are provided in the fixing ring 10, the rubber ring 8, and the mounting ring 9, and fixing bolts 11 are provided in the corresponding holes. The fixing bolts 11 on both sides are connected to one side of the piston body 4 and one side of the crushing module 3, respectively. A crushing rod 5 is provided on one side of the crushing module 3, and the outer wall of the extrusion rod 6 is attached to the inner wall of the two crushing rods 5. The outer wall of the protective cover 7 is provided with a corrugated groove, and the protective cover 7 is made of flexible rubber.

[0030] In a specific implementation, by setting up a protective cover 7, two mounting rings 9 are respectively attached to one side of the piston body 4 and one side of the crushing module 3. Then, two fixing rings 10 are pre-fitted onto the protective cover 7. Next, the rubber rings 8 on both sides of the protective cover 7 are attached to one side of the two mounting rings 9. Then, the two fixing rings 10 are moved so that one side of the fixing ring 10 is attached to the other side of the rubber ring 8. Finally, by tightening the fixing bolts 11, the fixing bolts 11 fix the fixing rings 10 and the rubber rings 8, so that the protective cover 7 secures the oil seal. The inner wall of cylinder 2 is shielded to prevent dust and gravel from entering and adhering to the inner wall of oil seal cylinder 2, and to prevent the piston body 4 from rubbing against the inner wall of oil seal cylinder 2 and causing damage to the inner wall of oil seal cylinder 2, thus affecting the sealing performance. By setting the protective cover 7 to be flexible and retractable, the piston body 4 will not break the protective cover 7 when moving, thereby avoiding damage to the protective cover 7 and affecting the protective effect. By setting the rubber ring 8, the plasticity of the rubber ring 8 allows the rubber ring 8 to fill the gap between the fixing ring 10 and the mounting ring 9, thereby improving the sealing effect of the rubber ring 8.

[0031] The piston body 4 has two sealing grooves 14 on its outer wall, and a sealing ring 12 is installed in the sealing groove 14. The outer wall of the sealing ring 12 is attached to and slidably connected to the inner wall of the oil seal cylinder 2. The rubber ring 8 has two reinforcing grooves 13 on its outer wall.

[0032] In a specific implementation, a sealing ring 12 is provided. The outer wall of the sealing ring 12 is pressed against the inner wall of the oil seal cylinder 2, causing a certain deformation of the sealing cavity. This results in the outer wall of the sealing ring 12 being tightly fitted to the inner wall of the oil seal cylinder 2, thus ensuring a seal. Furthermore, two reinforcing grooves 13 are provided on the outer wall of the sealing ring 12, and one side of the reinforcing groove 13 has a thin wall. Hydraulic oil in the drive cylinder 1 is squeezed into the reinforcing groove 13, and the pressure of the hydraulic oil squeezes the thin wall of the reinforcing groove 13, making the thin wall of the reinforcing groove 13 tightly fitted to the inner wall of the oil seal cylinder 2, thereby further improving the sealing effect between the piston body 4 and the oil seal cylinder 2.

[0033] Working principle: In use, two mounting rings 9 are respectively attached to one side of the piston body 4 and one side of the crushing module 3. Then, two fixing rings 10 are put on the outside of the protective cover 7. The rubber rings 8 on both sides of the protective cover 7 are attached to one side of the two mounting rings 9 respectively. Then, the fixing rings 10 and mounting rings 9 are fixed with fixing bolts 11, so that the fixing rings 10 and mounting rings 9 on both sides are fixed to one side of the piston body 4 and the crushing module 3 respectively. The protective cover 7 can be contracted to protect the oil seal cylinder 2, preventing dust from entering and adhering to the inner wall of the oil seal cylinder 2. This prevents the piston body 4 from rubbing against the inner wall of the oil seal cylinder 2, which would cause damage to the inner wall of the oil seal cylinder 2 and affect the sealing effect.

[0034] In this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A hydraulic oil seal structure for a drilling and fracturing integrated machine, comprising a drive cylinder (1), wherein a piston body (4) is provided inside the drive cylinder (1), and a pressing rod (6) is connected to one side of the piston body (4), characterized in that, Also includes: Oil seal cylinder (2), one side of the oil seal cylinder (2) is detachably installed on the side of the drive cylinder (1) by bolts; Crushing module (3), one side of which is connected to one side of oil seal cylinder (2); The oil seal cylinder (2) is equipped with a protective cover (7), and rubber rings (8) are connected to both sides of the protective cover (7). The rubber rings (8) on both sides are connected to one side of the piston body (4) and the other side of the crushing module (3) through fixing components. The protective cover (7) protects the inner wall of the oil seal cylinder (2) to prevent dust from adhering.

2. The hydraulic oil seal structure for a drilling and fracturing integrated machine according to claim 1, characterized in that, The rubber ring (8) is attached to one side with an installation ring (9), and the two installation rings (9) are respectively attached to one side of the piston body (4) and one side of the crushing module (3).

3. The hydraulic oil seal structure for a drilling and fracturing integrated machine according to claim 1, characterized in that, The rubber ring (8) is attached to a fixing ring (10) on the side away from the mounting ring (9). Multiple holes are provided in the fixing ring (10), the rubber ring (8) and the mounting ring (9), and fixing bolts (11) are provided in the corresponding holes. The fixing bolts (11) on both sides are connected to one side of the piston body (4) and the other side of the crushing module (3), respectively.

4. The hydraulic oil seal structure for a drilling and fracturing integrated machine according to claim 1, characterized in that, The crushing module (3) has a crushing rod (5) on one side, and the outer wall of the extrusion rod (6) is in contact with the inner wall of the two crushing rods (5).

5. The hydraulic oil seal structure for a drilling and fracturing integrated machine according to claim 1, characterized in that, The outer wall of the protective cover (7) is provided with corrugated grooves, and the protective cover (7) is made of flexible rubber.

6. The hydraulic oil seal structure for a drilling and fracturing integrated machine according to claim 1, characterized in that, The piston body (4) has two sealing grooves (14) on its outer wall, and a sealing ring (12) is installed in the sealing groove (14).

7. The hydraulic oil seal structure for a drilling and fracturing integrated machine according to claim 6, characterized in that, The outer wall of the sealing ring (12) is attached to and slidably connected to the inner wall of the oil seal cylinder (2), and the outer wall of the rubber ring (8) has two reinforcing grooves (13).

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