Spring hydraulic connecting device of double-roller machine

Abstract

The utility model discloses a double-roller machine spring hydraulic connecting device which comprises a driving roller, a driven roller is arranged on one side of the driving roller, the two ends of the driven roller are connected with bearing seats through bearings, a fixing shell is fixed to the outer wall of one side of each bearing seat, a hydraulic cylinder is arranged on one side of each fixing shell, and a connecting seat is fixed to the output end of each hydraulic cylinder. A first spring is arranged in the fixing shell, a connecting column is inserted into the connecting base, a connecting groove is formed in the outer wall of the fixing shell, the two ends of the connecting column are located in the connecting groove, and the two ends of the connecting column are connected with limiting nuts through threads. According to the utility model, the connecting seat and the fixed shell slide, and the spring I is arranged in the fixed shell, so that when an iron block enters between the driving roller and the driven roller, the driven roller can be automatically bounced off and pressurized, the effect of over-iron overload protection of the double-roller machine is realized, and the service life of the double-roller machine is further prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of double roller machines, in particular to a spring hydraulic connection device for double roller machines. Background Art

[0002] The double-roller mill is a device for crushing raw materials such as stone and construction waste. When the double-roller mill is working, the active roller and the driven roller rotate at high speed in relative directions to crush the raw materials.

[0003] Chinese patent No. 201220510729.X discloses a horizontal roller machine for brick making, including a housing and a base arranged at the bottom of the housing, a feed hopper is arranged at the top of the housing, and rollers and a discharge hopper are arranged in sequence below the feed hopper. The rollers include a driving roller and a driven roller arranged in parallel, and the driving roller and the driven roller are respectively fixed on two rotating shafts supported by bearings through sleeves, and the rotating shaft ends of the driving roller are connected to the power device. The rollers of the driving roller and the driven roller are covered with meshing tooth plates, and the raised racks at both ends of the tooth plates are provided with a plurality of screw holes, and the tooth plates are respectively fastened to the driving roller and the driven roller by bolts. When the roller machine in the patent is in use, due to the presence of harder iron impurities in raw materials such as stone and construction waste, when the harder iron impurities enter between the driving roller and the driven roller, it is easy to cause overload damage to the roller machine. Therefore, it is urgent to design a spring hydraulic connection device for the roller machine to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a roller machine spring hydraulic connection device to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A spring hydraulic connection device for a roller machine comprises an active roller, a driven roller is arranged on one side of the active roller, both ends of the driven roller are connected to a bearing seat through bearings, a fixed shell is fixed to an outer wall of one side of the bearing seat, a hydraulic cylinder is arranged on one side of the fixed shell, a connecting seat is fixed to the output end of the hydraulic cylinder, a spring is arranged inside the fixed shell, a connecting column is inserted inside the connecting seat, a connecting groove is opened on the outer wall of the fixed shell, both ends of the connecting column are located inside the connecting groove, and both ends of the connecting column are connected to limiting nuts through threads.

[0007] Furthermore, both ends of the connecting column are plugged with limit pins, and the limit pins are located on a side of the limit nut away from the fixing shell.

[0008] Furthermore, the limit pin comprises a plug-in rod, a pull ring is welded at one end of the plug-in rod, a mounting groove is formed inside the plug-in rod, and a rotating plate is hinged inside the mounting groove via an axis.

[0009] Furthermore, a second spring and a retaining ring are sleeved on the outside of the plug-in rod, and the retaining ring and the rotating plate are respectively located on both sides of the connecting column.

[0010] Furthermore, a first slope is provided at the bottom of the rotating plate, and a second slope matching the first slope is provided on an inner wall of one side of the mounting groove.

[0011] Furthermore, a first positioning column is fixed to an outer wall of one side of the connecting seat, and a second positioning column is fixed to an inner wall of one side of the fixing shell, and both the first positioning column and the second positioning column are inserted into the interior of the first spring.

[0012] In the above technical scheme, the utility model provides a spring hydraulic connection device for a roller machine, and its beneficial effects are as follows: by setting a connecting seat, a fixed shell and a spring 1, the connecting seat and the fixed shell are slid, and a spring 1 is set inside the fixed shell, so that when an iron block enters between the active roller and the driven roller, the driven roller can automatically pop open and pressurize, thereby achieving the effect of overload protection of the roller machine due to iron overload, thereby extending the service life of the roller machine; by setting a limit nut and a connecting column that are threadedly connected, when the limit nut and the plug-in column are threadedly separated, the plug-in column is taken out from the inside of the connecting seat, thereby making it more convenient to replace the spring 1; by setting a limit pin and plugging it into the connecting column, the limit nut is limited to prevent the limit nut from being separated from the plug-in column due to vibration, and at the same time, the rotating plate and the connecting column form a barrier, so that the limit pin will not be separated from the plug-in column by itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0014] Figure 1 The utility model provides an overall structural schematic diagram of a roller machine spring hydraulic connection device embodiment.

[0015] Figure 2 The present invention is a schematic top view of the structure of a roller machine spring hydraulic connection device embodiment provided by the present invention.

[0016] Figure 3 This is a schematic diagram of the enlarged structure of point A provided in an embodiment of a spring hydraulic connection device for a roller machine of the utility model.

[0017] Figure 4 This is a schematic diagram of the enlarged structure of point B provided in an embodiment of a spring hydraulic connection device for a roller machine of the utility model.

[0018] Figure 5 The present invention is a schematic diagram of a limit pin structure provided in an embodiment of a spring hydraulic connection device for a roller machine according to the present invention.

[0019] Figure 6 The utility model is a schematic diagram of the installation groove structure provided in an embodiment of the hydraulic connection device of the roller machine spring.

[0020] Description of reference numerals:

[0021] 1 active roller, 2 driven roller, 3 bearing seat, 4 hydraulic cylinder, 5 fixed shell, 6 connecting groove, 7 connecting column, 8 limiting nut, 9 limiting pin, 10 spring 1, 11 positioning column 1, 12 positioning column 2, 13 plug-in rod, 14 pull ring, 15 installation groove, 16 rotating plate, 17 inclined plane 1, 18 inclined plane 2, 19 retaining ring, 20 spring 2, 21 connecting seat. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0023] like Figure 1-6 As shown, a spring hydraulic connection device for a roller machine provided by an embodiment of the utility model comprises an active roller 1, a driven roller 2 is arranged on one side of the active roller 1, two ends of the driven roller 2 are connected to a bearing seat 3 through bearings, a fixed shell 5 is fixed to an outer wall of one side of the bearing seat 3, a hydraulic cylinder 4 is arranged on one side of the fixed shell 5, a connecting seat 21 is fixed to the output end of the hydraulic cylinder 4, a spring 10 is arranged inside the fixed shell 5, a connecting column 7 is inserted inside the connecting seat 21, a connecting groove 6 is opened on the outer wall of the fixed shell 5, two ends of the connecting column 7 are located inside the connecting groove 6, and two ends of the connecting column 7 are connected to limiting nuts 8 through threads.

[0024] Specifically, in this embodiment, it includes an active roller 1, which is driven by a motor when in use. A driven roller 2 is provided on one side of the active roller 1. Both ends of the driven roller 2 are connected to bearing seats 3 through bearings. When the active roller 1 rotates, it drives the crushed material to move, and then the material drives the driven roller 2 to rotate through friction, so that the active roller 1 and the driven roller 2 rotate in opposite directions. A fixed shell 5 is fixed to the outer wall of one side of the bearing seat 3, and a hydraulic cylinder 4 is provided on one side of the fixed shell 5. A connecting seat 21 is fixed to the output end of the hydraulic cylinder 4, and the connecting seat 21 is driven to move by the hydraulic cylinder 4. A spring 10 is provided inside the fixed shell 5, and the number of springs 10 inside each fixed shell 5 is preferably 4. A connecting column is inserted inside the connecting seat 21 7, and the connecting column 7 can be pulled out from the inside of the connecting seat 21, the outer wall of the fixed shell 5 is provided with a connecting groove 6, and the two ends of the connecting column 7 are located inside the connecting groove 6, so that the connecting seat 21 can slide with the fixed shell 5, and the two ends of the connecting column 7 are connected with limiting nuts 8 by threads, and the limiting nuts 8 play a limiting role on the connecting column 7 to prevent the connecting column 7 from being separated from the fixed shell 5. A positioning column 11 is fixed to the outer wall of one side of the connecting seat 21, and a positioning column 2 12 is fixed to the inner wall of one side of the fixed shell 5. The positioning columns 11 and 12 are both inserted into the inside of the spring 10, and the positioning columns 11 and 12 are used to position the spring 10, so that the spring 10 will not be separated from the fixed shell 5 during the operation of the roller machine.

[0025] The utility model provides a spring hydraulic connection device for a double roller machine. By setting a connection seat 21, a fixed shell 5 and a spring 10, the connection seat 21 and the fixed shell 5 are slid, and a spring 10 is set inside the fixed shell 5, so that when an iron block enters between the active roller 1 and the driven roller 2, the driven roller 2 can automatically spring open and pressurize, thereby achieving the effect of overload protection of the double roller machine due to iron overload, thereby extending the service life of the double roller machine; the spring reaction is relatively sensitive, and the hydraulic device has a large pressure but a slow reaction, and the advantages of the two are combined to achieve the effect of overload protection of the double roller machine.

[0026] In another embodiment provided by the utility model, limit pins 9 are inserted at both ends of the connecting column 7, and the limit pins 9 are located on the side of the limit nut 8 away from the fixed shell 5. The limit pins 9 are used to limit the limit nut 8 to prevent the limit nut 8 from being separated from the connecting column 7 due to vibration; the limit pin 9 includes a plug rod 13, a pull ring 14 is welded at one end of the plug rod 13, a mounting groove 15 is opened inside the plug rod 13, and a rotating plate 16 is hinged inside the mounting groove 15 through an axis; the outside of the plug rod 13 is sleeved with a spring 20 and a retaining ring 19, and the retaining ring 19 and the rotating plate 16 are respectively located at the connecting column 7 On both sides, elastic force is applied to the retaining ring 19 through the spring 20 at the same time, so that the retaining ring 19 and the rotating plate 16 are close to the connecting column 7 in the natural state, thereby making the connection between the limit pin 9 and the connecting column 7 more secure; a slope 17 is provided at the bottom of the rotating plate 16, and a slope 2 18 matched with the slope 17 is provided on the inner wall of one side of the mounting groove 15. The slope 2 18 limits the rotating plate 16. When the slope 17 of the rotating plate 16 is in contact with the slope 2 18, the rotating plate 16 is completely received in the interior of the mounting groove 15, and the plug-in rod 13 can be pulled out from the interior of the connecting column 7.

[0027] Working principle: During use, when it is necessary to adjust the pressure between the active roller 1 and the driven roller 2, the hydraulic cylinder 4 drives the connecting seat 21 to move, so that the connecting seat 21 compresses the spring, and the spring exerts elastic force on the fixed shell 5 and the bearing seat 3, thereby increasing the pressure between the active roller 1 and the driven roller 2; when the spring needs to be replaced, the spring 20 is compressed so that the mounting groove 15 part of the plug-in rod 13 moves out of the connecting column 7, and then the rotating plate 16 is rotated so that the inclined surface 17 of the rotating plate 16 fits with the inclined surface 18 of the mounting groove 15. At this time, the rotating plate 16 is received into the interior of the mounting groove 15, and then the plug-in rod 13 can be pulled out from the interior of the connecting column 7, and then the limit nut 8 can be removed from the connecting column 7, so that the connecting seat 21 can be separated from the fixed shell 5, so that the spring 10 inside the fixed shell 5 can be taken out and replaced.

[0028] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A spring hydraulic connection device for a roller machine, characterized in that: The invention comprises an active roller (1), a driven roller (2) is arranged on one side of the active roller (1), two ends of the driven roller (2) are connected to a bearing seat (3) via bearings, a fixed shell (5) is fixed to an outer wall of one side of the bearing seat (3), a hydraulic cylinder (4) is arranged on one side of the fixed shell (5), a connecting seat (21) is fixed to the output end of the hydraulic cylinder (4), a spring (10) is arranged inside the fixed shell (5), a connecting column (7) is inserted inside the connecting seat (21), a connecting groove (6) is formed on the outer wall of the fixed shell (5), two ends of the connecting column (7) are located inside the connecting groove (6), and two ends of the connecting column (7) are connected to limit nuts (8) via threads.

2. A roller machine spring hydraulic connection device according to claim 1, characterized in that: Limit pins (9) are inserted at both ends of the connection column (7), and the limit pins (9) are located on a side of the limit nut (8) away from the fixed shell (5).

3. A roller machine spring hydraulic connection device according to claim 2, characterized in that: The limit pin (9) comprises a plug-in rod (13), one end of which is welded with a pull ring (14), a mounting groove (15) is formed inside the plug-in rod (13), and a rotating plate (16) is hinged inside the mounting groove (15) via a shaft.

4. A roller machine spring hydraulic connection device according to claim 3, characterized in that: The plug-in rod (13) is sleeved with a second spring (20) and a retaining ring (19) on the outside, and the retaining ring (19) and the rotating plate (16) are respectively located on both sides of the connecting column (7).

5. The roller machine spring hydraulic connection device according to claim 3, characterized in that: The bottom of the rotating plate (16) is provided with a first inclined surface (17), and the inner wall of one side of the mounting groove (15) is provided with a second inclined surface (18) matched with the first inclined surface (17).

6. The roller machine spring hydraulic connection device according to claim 1, characterized in that: A positioning column 1 (11) is fixed to an outer wall of one side of the connecting seat (21), and a positioning column 2 (12) is fixed to an inner wall of one side of the fixing shell (5). Both the positioning column 1 (11) and the positioning column 2 (12) are inserted into the interior of the spring 1 (10).

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