Scraper lifting oil cylinder with improved structure

Abstract

The utility model provides a scraper lift cylinder with an improved structure, which comprises a steering fixing structure, the steering fixing structure comprises a rotating ring and a lifting plate, the rotating ring is rotatably connected to the outer wall of the lift cylinder structure, second bolt holes are formed in two sides of the rotating ring, and limiting bolts are in threaded connection with the interiors of the second bolt holes. The limiting bolt is in threaded connection with the second bolt hole, and a clamping groove is formed in the outer wall of the bottom of the limiting bolt. The rotating fixing structure is connected with equipment, when the lifting oil cylinder structure needs to rotate axially, the outer wall of the lifting oil cylinder structure rotates on the inner wall of the rotating ring, and therefore the situation that the lifting oil cylinder structure is damaged due to the fact that the lifting oil cylinder structure bears large axial force can be avoided, and the service life of the lifting oil cylinder structure is prolonged. And meanwhile, when the lifting oil cylinder structure does not need to bear the axial force, a limiting bolt is rotated, the limiting bolt drives a limiting shaft and a limiting strip at the top of the lifting plate to be inserted into an auxiliary groove and a limiting groove, and the lifting oil cylinder structure is locked.

Description

Technical Field

[0001] The utility model belongs to the technical field of lifting cylinders, and in particular relates to a scraper lifting cylinder with an improved structure. Background Art

[0002] The scraper lift cylinder is a type of hydraulic cylinder and an actuator in a hydraulic system. Its primary function is to convert hydraulic energy into linear reciprocating mechanical motion. The scraper lift cylinder boasts a simple structure and reliable operation. The hydraulic system provides pressure to raise and lower the scraper. This type of cylinder is widely used in various machinery, particularly in applications requiring vertical or horizontal movement, such as coal mining equipment, construction machinery, and agricultural machinery, to raise and lower or move scrapers or other working parts.

[0003] However, during use, when the lifting cylinder is driven to rotate axially, the lifting cylinder cannot rotate axially, causing the lifting cylinder to bear axial force, causing the telescopic bearing inside the lifting cylinder to break after being subjected to the axial force, affecting subsequent use. Utility Model Content

[0004] Purpose of the utility model

[0005] In view of the above technical problems, the present invention provides a scraper lifting cylinder with an improved structure to solve the technical problems mentioned in the background technology.

[0006] Technical Solution

[0007] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is a structurally improved scraper lifting cylinder, comprising a lifting cylinder structure, a steering fixing structure is provided at the bottom of the lifting cylinder structure, and a buffer structure is provided at the top of the lifting cylinder structure;

[0008] The steering fixing structure includes a rotating ring and a lifting plate. The rotating ring is rotatably connected to the outer wall of the lifting cylinder structure. Second bolt holes are opened on both sides of the rotating ring. The internal threads of the second bolt holes are connected to limit bolts. The limit bolts are threadedly connected to the second bolt holes. The bottom outer wall of the limit bolt is provided with a card slot.

[0009] Preferably, the lifting cylinder structure includes a lifting cylinder body, a first bolt hole is provided in the middle of the top of the lifting cylinder body, a mounting ring is provided on the top of the lifting cylinder body, a guide groove is provided on the inner side of the mounting ring, a positioning ring is provided at the bottom of the lifting cylinder body, the positioning ring is rotatably connected to the rotating ring, an auxiliary groove is provided at the bottom of the lifting cylinder body, and a limiting groove is provided on the inner wall of the auxiliary groove.

[0010] Preferably, the buffer structure includes a sliding shell, the outer wall of the sliding shell is provided with a guide bar, the sliding shell is slidably connected to the mounting ring, the outer wall of the sliding shell is provided with a guide bar, and the guide bar is slidably connected to the guide groove.

[0011] Preferably, an adjusting bolt is slidably connected in the middle of the sliding housing, one end of the adjusting bolt is threadedly connected to the first bolt hole, a buffer spring is provided between the adjusting bolt and the mounting ring, and a first connecting pipe is provided on the top of the sliding housing.

[0012] Preferably, third bolt holes are provided on both sides of the lifting plate, a clamping ring is provided on the inner side of the third bolt hole, and the limiting bolt is rotatably connected to the third bolt hole.

[0013] Preferably, a limiting shaft is provided on the top of the lifting plate, a limiting bar is provided on the top of the limiting shaft, the limiting bar is engaged and connected with the auxiliary groove, and a second connecting pipe is provided on the bottom of the lifting plate.

[0014] Beneficial effects

[0015] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects:

[0016] The utility model is connected to the equipment through the provided rotating fixing structure. When the lifting cylinder structure needs to rotate axially, the outer wall of the lifting cylinder structure rotates on the inner wall of the rotating ring, thereby preventing the lifting cylinder structure from being subjected to a large axial force and causing damage to the lifting cylinder structure. At the same time, when the lifting cylinder structure does not need to be subjected to the axial force, the limiting bolt is rotated, and the limiting bolt drives the limiting shaft and the limiting bar on the top of the lifting plate to be inserted into the auxiliary groove and the limiting groove, thereby locking the lifting cylinder structure.

[0017] When buffering is required between the scraper and the lifting cylinder, the lifting cylinder is lifted and lowered first, and then the buffer spring is stretched, and the scraper and the sliding can remain stationary. When the sliding housing moves to or fits before the top of the adjusting bolt, the buffer spring drives the sliding housing and the scraper to move, preventing the scraper from directly contacting other objects and causing damage to the scraper. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the utility model;

[0019] Figure 2 This is a three-dimensional expanded view of the lifting cylinder structure of the utility model;

[0020] Figure 3 This is a three-dimensional expanded view of the steering fixing structure of the present invention.

[0021] Reference numerals

[0022] 1. Lifting cylinder structure; 101. Lifting cylinder body; 102. First bolt hole; 103. Mounting ring; 104. Guide groove; 105. Positioning ring; 106. Auxiliary groove; 107. Limiting groove; 2. Buffering structure; 201. Sliding shell; 202. Adjusting bolt; 203. Guide strip; 204. Buffering spring; 205. First connecting pipe; 3. Steering fixing structure; 301. Rotating ring; 302. Second bolt hole; 303. Limiting bolt; 304. Retaining groove; 305. Lifting plate; 306. Third bolt hole; 307. Retaining ring; 308. Limiting shaft; 309. Limiting strip; 310. Second connecting pipe. DETAILED DESCRIPTION

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise", "coaxial", "bottom", "one end", "top", "the other end", "one side", "front", "two ends", "both sides", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0025] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connected," "fixed," "provided with," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0026] Reference is now made to the accompanying drawings, each of which is intended only to illustrate certain exemplary embodiments and is not intended to limit the present invention. Like reference numerals in the various drawings indicate like or corresponding parts. The dimensions and proportions in the various drawings are for illustrative purposes only and should not be construed as limiting the present invention. These dimensions may be exaggerated relative to actual products.

[0027] Reference Figure 1-3 , a structurally improved scraper lifting cylinder shown in FIG. comprises a lifting cylinder structure 1, a steering fixing structure 3 is provided at the bottom of the lifting cylinder structure 1, and a buffer structure 2 is provided at the top of the lifting cylinder structure 1;

[0028] The steering fixing structure 3 includes a rotating ring 301 and a lifting plate 305. The rotating ring 301 is rotatably connected to the outer wall of the lifting cylinder structure 1. Second bolt holes 302 are provided on both sides of the rotating ring 301. The internal threads of the second bolt holes 302 are connected to limit bolts 303. The limit bolts 303 are threadedly connected to the second bolt holes 302. The bottom outer wall of the limit bolt 303 is provided with a card slot 304.

[0029] Furthermore, in the above technical solution, the lifting cylinder structure 1 includes a lifting cylinder body 101, a first bolt hole 102 is provided in the middle of the top of the lifting cylinder body 101, a mounting ring 103 is provided on the top of the lifting cylinder body 101, a guide groove 104 is provided on the inner side of the mounting ring 103, a positioning ring 105 is provided at the bottom of the lifting cylinder body 101, and the positioning ring 105 is rotatably connected to the rotating ring 301, an auxiliary groove 106 is provided at the bottom of the lifting cylinder body 101, and a limiting groove 107 is provided on the inner wall of the auxiliary groove 106. When the lifting cylinder body 101 is started, it can push the scraper to contact or separate with the object, and when the lifting cylinder body 101 needs to rotate, the positioning ring 105 at the bottom of the lifting cylinder body 101 rotates on the inner side of the rotating ring 301.

[0030] Furthermore, in the above technical solution, the buffer structure 2 includes a sliding shell 201, the outer wall of the sliding shell 201 is provided with a guide bar 203, the sliding shell 201 is slidably connected to the mounting ring 103, the outer wall of the sliding shell 201 is provided with a guide bar 203, the guide bar 203 is slidably connected to the guide groove 104, the middle of the sliding shell 201 is slidably connected with an adjustment bolt 202, one end of the adjustment bolt 202 is threadedly connected to the first bolt hole 102, a buffer spring 204 is provided between the adjustment bolt 202 and the mounting ring 103, and a first connecting pipe 205 is provided on the top of the sliding shell 201. The whole bolt 202 is used to limit the farthest movement of the sliding housing 201 and to adjust the elasticity of the buffer spring 204. The depth of the adjustment bolt 202 entering the first bolt hole 102 is different, thereby adjusting the elasticity of the buffer spring 204. When the lifting cylinder body 101 is extended, the lifting cylinder body 101 drives the scraper to contact the object, and then the lifting cylinder body 101 continues to move forward a certain distance, so that the mounting ring 103 slides on the outer wall of the sliding housing 201 and squeezes the buffer spring 204, and then the buffer spring 204 pushes the sliding housing 201 to move outward, so that the scraper contacts the object, and the first connecting pipe 205 is connected to the scraper.

[0031] Furthermore, in the above technical solution, third bolt holes 306 are provided on both sides of the lifting plate 305, and a retaining ring 307 is provided on the inner side of the third bolt hole 306. The limiting bolt 303 is rotatably connected to the third bolt hole 306. A limiting shaft 308 is provided on the top of the lifting plate 305, and a limiting bar 309 is provided on the top of the limiting shaft 308. The limiting bar 309 is engaged with the auxiliary groove 106, and a second connecting pipe 310 is provided at the bottom of the lifting plate 305. When the lifting cylinder body 101 does not need to rotate, the limiting bolt 303 is rotated, and the limiting bolt 303 drives the lifting plate 305 to move upward. The lifting plate 305 drives the limiting shaft 308 to be inserted into the inside of the auxiliary groove 106, and the limiting bar 309 is inserted into the inside of the limiting groove 107 to limit the lifting cylinder body 101.

[0032] The above-mentioned embodiments only express a certain implementation method of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, which all fall within the scope of protection of the utility model. Therefore, the scope of protection of the utility model patent shall be based on the attached claims.

Claims

1. A structurally improved scraper lifting cylinder, characterized in that: include A lifting cylinder structure (1), wherein a steering fixing structure (3) is provided at the bottom of the lifting cylinder structure (1), and a buffer structure (2) is provided at the top of the lifting cylinder structure (1); The steering fixing structure (3) comprises a rotating ring (301) and a lifting plate (305), wherein the rotating ring (301) is rotatably connected to the outer wall of the lifting cylinder structure (1), second bolt holes (302) are provided on both sides of the rotating ring (301), the inner part of the second bolt hole (302) is threadedly connected to a limiting bolt (303), the limiting bolt (303) is threadedly connected to the second bolt hole (302), and a clamping groove (304) is provided on the outer wall of the bottom of the limiting bolt (303).

2. The scraper lifting cylinder with improved structure according to claim 1, characterized in that: The lifting cylinder structure (1) comprises a lifting cylinder body (101), a first bolt hole (102) is provided in the middle of the top of the lifting cylinder body (101), a mounting ring (103) is provided at the top of the lifting cylinder body (101), a guide groove (104) is provided on the inner side of the mounting ring (103), a positioning ring (105) is provided at the bottom of the lifting cylinder body (101), the positioning ring (105) is rotatably connected to the rotating ring (301), an auxiliary groove (106) is provided at the bottom of the lifting cylinder body (101), and a limiting groove (107) is provided on the inner wall of the auxiliary groove (106).

3. The scraper lifting cylinder with improved structure according to claim 1, characterized in that: The buffer structure (2) comprises a sliding housing (201), the outer wall of the sliding housing (201) is provided with a guide bar (203), the sliding housing (201) is slidably connected to the mounting ring (103), and the guide bar (203) is slidably connected to the guide groove (104).

4. The structurally improved scraper lifting cylinder according to claim 3, characterized in that: An adjusting bolt (202) is slidably connected in the middle of the sliding housing (201), one end of the adjusting bolt (202) is threadedly connected to the first bolt hole (102), a buffer spring (204) is provided between the adjusting bolt (202) and the mounting ring (103), and a first connecting pipe (205) is provided at the top of the sliding housing (201).

5. The scraper lifting cylinder with improved structure according to claim 1, characterized in that: Third bolt holes (306) are provided on both sides of the lifting plate (305), a clamping ring (307) is provided inside the third bolt hole (306), and the limiting bolt (303) is rotatably connected to the third bolt hole (306).

6. The structurally improved scraper lifting cylinder according to claim 5, characterized in that: A limiting shaft (308) is provided on the top of the lifting plate (305), a limiting strip (309) is provided on the top of the limiting shaft (308), the limiting strip (309) is engaged and connected with the auxiliary groove (106), and a second connecting pipe (310) is provided on the bottom of the lifting plate (305).

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