Novel hydraulic support pushing jack

Abstract

The utility model discloses a novel hydraulic support pushing jack, which relates to the technical field of pushing jacks, and comprises a hydraulic telescopic piece, a hydraulic cylinder and a telescopic rod, a first connecting seat and a storage box are arranged on the telescopic rod, the telescopic rod is detachably arranged on the hydraulic cylinder, a nut is embedded on the storage box, and an extension screw rod is in threaded connection with the nut. The telescopic jack is reasonable in design structure, the adjustable extension screw mechanism is additionally arranged on the basis of a traditional hydraulic telescopic part, the problems that in the prior art, a jack is single in stroke and limited in application range are effectively solved, and the telescopic jack can be adjusted by adjusting the extension length of the extension screw from the containing box. The overall length of the hydraulic support pushing jack can be flexibly changed, so that the adaptive capacity of the jack to different supporting distances is improved, the jack can better meet the requirements of complex and changeable working environments in an underground coal mine, and the practicability of equipment is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of pushing jack technology, specifically a new type of hydraulic support pushing jack. Background Technology

[0002] Hydraulic supports are support equipment for fully mechanized mining faces. Their main function is to support the roof of the coal mining face and maintain a safe working space. The roadway support adjustment jack is mainly used to connect the left and right roadway supports, improve the stability of the left and right roadway supports, and adjust the distance between the two roadway supports by extending and shortening the adjustment jack.

[0003] Chinese patent CN215558647U discloses a new type of hydraulic support pushing jack. It uses a jack with a stroke of 900mm and adds a distance sleeve inside the jack to increase the stroke range of the jack, thereby increasing the adaptability of the jack and reducing the production cost of enterprises.

[0004] While the above solutions utilize a distance sleeve to switch between the two support configurations, they only provide two constant distances for adjusting the support range, making them unsuitable for different support distances and failing to meet current practical requirements. Therefore, we provide a novel hydraulic support pushing jack to solve these problems. Utility Model Content

[0005] 1) Technical problems to be solved

[0006] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a new type of hydraulic support pushing jack.

[0007] (ii) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a novel hydraulic support pushing jack, comprising:

[0009] A hydraulic telescopic component includes a hydraulic cylinder and a telescopic rod, wherein a first connecting seat is mounted on the telescopic rod.

[0010] A storage box is detachably mounted on a hydraulic cylinder. A nut is embedded in the storage box, and an extension screw is internally threaded onto the nut. The end of the extension screw away from the storage box is rotatably connected to a platform, and a second connecting seat is mounted on the platform.

[0011] A limiting component, mounted on the platform, is used to limit and fix the extension screw.

[0012] Furthermore, a connecting ring is fixedly connected to the storage box, and the connecting ring is bolted to the hydraulic cylinder.

[0013] Furthermore, a screw block is fixedly connected to the extension screw, and the screw block is located outside the storage box.

[0014] Furthermore, a limiting block is fixedly connected to the extension screw, and the limiting block is located inside the storage box.

[0015] Furthermore, the limiting component includes a gear fixedly connected to the extension screw, a limiting ring is provided above the platform, the inner wall of the limiting ring is provided with a toothed groove, and the limiting ring is inserted into the gear through the toothed groove.

[0016] Furthermore, the limiting component also includes an adjusting screw rotatably connected to the platform, a lifting block threaded onto the adjusting screw, and one end of the lifting block being fixedly connected to the limiting ring.

[0017] Furthermore, a guide block is fixedly connected to the limiting ring, and a guide rod is slidably connected to the guide block, with one end of the guide rod fixedly connected to the platform.

[0018] (iii) Beneficial effects:

[0019] Compared with existing technologies, this new type of hydraulic support pushing jack has the following advantages:

[0020] I. This utility model effectively solves the problems of limited stroke and adaptability of existing jacks by adding an adjustable extension screw mechanism to the traditional hydraulic telescopic component. By adjusting the extension length of the extension screw from the storage box, the overall length of the hydraulic support pushing jack can be flexibly changed. This not only improves the adaptability of the jack to different support distances, but also enables the jack to better meet the needs of the complex and ever-changing working environment in coal mines, thus enhancing the practicality of the equipment.

[0021] Second, by setting a limiting component, this utility model can effectively lock or release the position of the extension screw, ensuring the stability and safety of the jack during the adjustment process, avoiding safety accidents caused by accidental movement, and also simplifying the operation process and improving work efficiency. The guide block on the limiting ring works in conjunction with the guide rod to ensure the straightness and stability of the limiting ring during movement, further improving the operating accuracy of the equipment. Attached Figure Description

[0022] Figure 1 The three-dimensional representation of this utility model Figure 1 ;

[0023] Figure 2 The three-dimensional representation of this utility model Figure 2 ;

[0024] Figure 3 This is a cross-sectional view of the present invention;

[0025] Figure 4 This utility model Figure 3 An enlarged schematic diagram of the structure at point A in the middle.

[0026] In the diagram: 1. Hydraulic cylinder; 2. Telescopic rod; 3. First connecting seat; 4. Storage box; 5. Connecting ring; 6. Nut; 7. Extension screw; 8. Limiting block; 9. Tightening block; 10. Platform; 11. Second connecting seat; 12. Gear; 13. Limiting ring; 14. Toothed groove; 15. Adjusting screw; 16. Lifting block; 17. Guide block; 18. Guide rod. Detailed Implementation

[0027] 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.

[0028] like Figure 1-4 As shown, this utility model provides a technical solution: a novel hydraulic support pushing jack, including a hydraulic telescopic component, a storage box 4, and a limiting component.

[0029] The hydraulic telescopic component includes a hydraulic cylinder 1 and a telescopic rod 2. The hydraulic telescopic component formed by the hydraulic cylinder 1 and the telescopic rod 2 is an existing structure. It uses hydraulic oil as a power source and can extend the telescopic rod 2 from the hydraulic cylinder 1, thereby adjusting its length. A first connecting seat 3 is installed on the telescopic rod 2, and it is connected to the hydraulic support through the first connecting seat 3.

[0030] The storage box 4 is detachably installed on the hydraulic cylinder 1. A connecting ring 5 is fixedly connected to the storage box 4. The connecting ring 5 is installed on the hydraulic cylinder 1 by bolts. The storage box 4 is installed at the bottom of the hydraulic cylinder 1 through the connecting ring 5.

[0031] A nut 6 is embedded in the storage box 4. An extension screw 7 is internally threaded onto the nut 6. A platform 10 is rotatably connected to the end of the extension screw 7 away from the storage box 4. A second connecting seat 11 is installed on the platform 10. The platform 10 is mounted on the hydraulic support through the second connecting seat 11, which allows the extension screw 7 to rotate within the nut 6. This allows adjustment of the extension length of the extension screw 7 extending from the storage box 4, thereby adjusting the length formed by the storage box 4 and the extension screw 7.

[0032] A screw block 9 is fixedly connected to the extension screw 7, and the screw block 9 is located outside the storage box 4. The extension screw 7 can be rotated by the screw block 9.

[0033] A limiting block 8 is fixedly connected to the extension screw 7, and the limiting block 8 is located inside the storage box 4. The limiting block 8 can limit the extension screw 7 and prevent the extension screw 7 from extending out of the storage box 4.

[0034] A limiting component is set on the platform 10 to limit and fix the extension screw 7. The limiting component includes a gear 12 fixedly connected to the extension screw 7. A limiting ring 13 is set above the platform 10. The inner wall of the limiting ring 13 is provided with a toothed groove 14, and the limiting ring 13 is inserted into the gear 12 through the toothed groove 14, so that the limiting ring 13 can be inserted into the gear 12 through the toothed groove 14 to limit the extension screw 7.

[0035] The limiting assembly also includes an adjusting screw 15 rotatably connected to the platform 10. A lifting block 16 is threaded onto the adjusting screw 15, and one end of the lifting block 16 is fixedly connected to the limiting ring 13. By rotating the adjusting screw 15, the lifting block 16 is moved on the adjusting screw 15, thereby adjusting the position of the limiting ring 13 on the gear 12, thus realizing two states: limiting the extension screw 7 and releasing the extension screw 7 from the limiting state.

[0036] A guide block 17 is fixedly connected to the limiting ring 13, and a guide rod 18 is slidably connected to the guide block 17. One end of the guide rod 18 is fixedly connected to the platform 10, which enables the limiting ring 13 to drive the guide block 17 to slide on the guide rod 18, thereby guiding the movement of the limiting ring 13.

[0037] It should be noted that in this document, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "fixed," "installed," "connected," and "linked" should be interpreted broadly. For example, "installed" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a mechanical connection or an electrical connection; "linked" can be a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] 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 novel hydraulic support pushing jack, characterized in that, include: A hydraulic telescopic component includes a hydraulic cylinder (1) and a telescopic rod (2), wherein a first connecting seat (3) is installed on the telescopic rod (2); The storage box (4) is detachably installed on the hydraulic cylinder (1). A nut (6) is embedded in the storage box (4). An extension screw (7) is internally threaded onto the nut (6). A platform (10) is rotatably connected to one end of the extension screw (7) away from the storage box (4). A second connecting seat (11) is installed on the platform (10). A limiting component is provided on the platform (10) for limiting and fixing the extension screw (7).

2. The novel hydraulic support pushing jack according to claim 1, characterized in that: A connecting ring (5) is fixedly connected to the storage box (4), and the connecting ring (5) is installed on the hydraulic cylinder (1) by bolts.

3. The novel hydraulic support pushing jack according to claim 1, characterized in that: A screw block (9) is fixedly connected to the extension screw (7), and the screw block (9) is located outside the storage box (4).

4. The novel hydraulic support pushing jack according to claim 1, characterized in that: A limiting block (8) is fixedly connected to the extension screw (7), and the limiting block (8) is located inside the storage box (4).

5. The novel hydraulic support pushing jack according to claim 1, characterized in that: The limiting component includes a gear (12) fixedly connected to the extension screw (7), and a limiting ring (13) is provided above the platform (10). The inner wall of the limiting ring (13) is provided with a toothed groove (14), and the limiting ring (13) is inserted into the gear (12) through the toothed groove (14).

6. A novel hydraulic support pushing jack according to claim 5, characterized in that: The limiting component also includes an adjusting screw (15) rotatably connected to the platform (10), and a lifting block (16) is threadedly connected to the adjusting screw (15), with one end of the lifting block (16) fixedly connected to the limiting ring (13).

7. A novel hydraulic support pushing jack according to claim 5, characterized in that: A guide block (17) is fixedly connected to the limiting ring (13), and a guide rod (18) is slidably connected to the guide block (17), with one end of the guide rod (18) fixedly connected to the platform (10).

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