A pultrusion roller for a drawing frame

Abstract

The utility model discloses a pultrusion roller of a drawing frame, comprising a roller mandrel, sleeve bearings are installed at both ends of the roller mandrel, the sleeve bearings include a bearing shell, a bearing mandrel and steel balls, the bearing mandrel is sleeved on the roller mandrel, two rows of steel balls are installed between the bearing mandrel and the bearing shell, an oil storage ring groove is opened in the circumferential direction of the bearing mandrel, a first through hole connected to the oil storage ring groove is opened in the radial direction of the bearing mandrel, a second through hole corresponding to the first through hole is opened in the radial direction of the roller mandrel, a hollow bolt is threadedly connected with the first through hole and / or the second through hole; an oil filling hole corresponding to the oil storage ring groove is opened on the bearing shell, and an oil filling plug for opening and closing the oil filling hole is detachably installed in the oil filling hole. By arranging the hollow bolt, the roller mandrel and the bearing mandrel can be stably connected together, the oil storage ring groove and the hollow bolt can increase the storage amount of lubricating grease, thereby extending the oiling cycle of the roller, so that the roller can operate for a long time and stably.

Description

Technical Field

[0001] The utility model relates to the technical field of a drawing frame, in particular to a pultrusion roller of a drawing frame. Background Art

[0002] The drawing frame is an intermediate link in the spinning process and a key process to improve the quality of the yarn. Its function is to effectively control the weight deviation of the sliver, improve the uniformity of the sliver, the straightness and parallelism of the fiber, and make the fibers of different qualities more evenly mixed in the sliver, creating conditions for obtaining good yarn. After the pultrusion roller of the drawing frame is pressurized, a stable holding force is formed between the corresponding roller jaws to ensure that the fiber sliver forms a normal draft under the action of the drafting force.

[0003] During the drafting process, the leather roller holds the sliver by applying pressure to the roller. During the operation of the leather roller, the sleeve bearing generates high heat and is prone to oil leakage. The lack of oil on the core shaft of the leather roller will lead to inflexible rotation, causing the leather roller to jump or move, resulting in unstable sliver quality. Utility Model Content

[0004] Based on this, it is necessary to provide a pultrusion roller for a drawing frame to address the above technical problems.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a pultrusion roller of a drawing machine, including a roller core shaft, sleeve bearings are installed at both ends of the roller core shaft, the sleeve bearing includes a bearing shell, a bearing core shaft and steel balls, the bearing core shaft is sleeved on the roller core shaft, the bearing core shaft is located on the inner side of the bearing shell, two rows of steel balls are installed between the bearing core shaft and the bearing shell, an oil storage ring groove is opened in the circumferential direction of the bearing core shaft, a first through hole connected to the oil storage ring groove is opened in the radial direction of the bearing core shaft, a second through hole corresponding to the first through hole is opened in the radial direction of the roller core shaft, the first through hole and / or the second through hole are provided with internal threads, the roller core shaft and the bearing core shaft are connected by hollow bolts, and the hollow bolts are threadedly connected to the first through hole and / or the second through hole; an oil filling hole corresponding to the oil storage ring groove is opened on the bearing shell, and an oil filling plug for opening and closing the oil filling hole is detachably installed in the oil filling hole.

[0006] Optionally, the oil filling hole is provided with an internal thread, the oil filling plug is provided with an external thread, and the oil filling plug is threadedly connected to the oil filling hole.

[0007] Optionally, two inner slideways are provided on the inner wall of the bearing housing, and two outer slideways are provided on the outer wall of the bearing core shaft. Steel balls are installed between the inner slideways and the outer slideways, and the steel balls are evenly spaced apart by a retaining frame; the oil storage ring groove is located between the two outer slideways.

[0008] Optionally, a leather roller sleeve is mounted on the leather roller core shaft.

[0009] Optionally, a first sealing ring is installed between the bearing housing and the leather roller core shaft; a second sealing ring is installed between the bearing housing and the bearing core shaft; and a third sealing ring is installed between the bearing core shaft and the leather roller core shaft.

[0010] Optionally, a limit stop plate is fixedly mounted on the leather roller core shaft, and the limit stop plate is in contact with and cooperates with the second sealing ring and the third sealing ring.

[0011] Optionally, a plug-in ring groove is provided on the leather roller core shaft, and the bearing core shaft is inserted into the plug-in ring groove.

[0012] The beneficial effects of the technical solution are as follows: by providing an oil storage ring groove, the amount of lubricating grease stored in the sleeve bearing can be increased; by providing a hollow bolt, the leather roller core shaft and the bearing core shaft can be easily connected, so that the bearing core shaft and the leather roller core shaft are stably connected together, and lubricating grease can be stored in the hollow bolt. When the lubricating grease in the sleeve bearing is insufficient, the lubricating grease in the hollow bolt can enter the oil storage ring groove, thereby extending the oiling cycle of the leather roller, so that the leather roller can operate for a long time and stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model;

[0014] Figure 2 for Figure 1 Schematic diagram of the local structure at the middle sleeve bearing;

[0015] Figure 3 for Figure 1 Sectional view along line AA;

[0016] Figure 4 is a schematic diagram of the structure of a sleeve bearing;

[0017] Figure 5 It is a schematic diagram of the local structure of the leather roller mandrel;

[0018] In the figure, 1, leather roller core shaft; 11, second through hole; 12, plug-in ring groove; 2, sleeve bearing; 21, bearing housing; 211, oil filling hole; 212, inner slideway; 22, bearing core shaft; 221, oil storage ring groove; 222, first through hole; 223, outer slideway; 23, steel ball; 24, oil filling plug; 25, retaining frame; 26, first sealing ring; 27, second sealing ring; 28, third sealing ring; 3, hollow bolt; 4, leather roller sleeve; 5, limit stopper. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0020] See also Figures 1 to 5 The embodiment of the present application provides a pultrusion roller of a drawing frame, including a roller core shaft 1, a roller sleeve 4 is sleeved on the roller core shaft 1, sleeve bearings 2 are installed at both ends of the roller core shaft 1, the sleeve bearing 2 includes a bearing shell 21, a bearing core shaft 22 and a steel ball 23, the bearing core shaft 22 is sleeved on the roller core shaft 1, the bearing core shaft 22 is located on the inner side of the bearing shell 21, two rows of steel balls 23 are installed between the bearing core shaft 22 and the bearing shell 21, and the installation of the two rows of steel balls 23 is specifically as follows: two inner slideways 212 are provided on the inner wall of the bearing shell 21, two outer slideways 223 are provided on the outer wall of the bearing core shaft 22, the steel balls 23 are installed between the inner slideway 212 and the outer slideway 223, and the steel balls 23 are evenly spaced by a retaining frame 25;

[0021] An oil storage ring groove 221 is provided on the circumference of the bearing core shaft 22. The oil storage ring groove 221 is located between the two outer slideways 223. The lubricating grease in the oil storage ring groove 221 can smoothly reach the positions of the two rows of steel balls 23. By providing the oil storage ring groove 221, the amount of lubricating grease stored in the sleeve bearing 2 can be increased, and the oiling cycle of the roller can be extended, so that the roller can operate stably for a long time.

[0022] The bearing core shaft 22 is radially provided with a first through hole 222 connected with the oil storage ring groove 221, and the roller core shaft 1 is radially provided with a second through hole 11 corresponding to the first through hole 222, and the first through hole 222 and the second through hole 11 are both provided with internal threads, and the roller core shaft 1 and the bearing core shaft 22 are connected by a hollow bolt 3, and the hollow bolt 3 is threadedly connected with the first through hole 222 and the second through hole 11; by providing the hollow bolt 3, it is convenient to connect the roller core shaft 1 and the bearing core shaft 22, so that the bearing core shaft 22 and the roller core shaft 1 are stably connected together and will not move relative to each other, and the hollow bolt 3 has a hollow structure inside, which can store lubricating grease. When the lubricating grease in the sleeve bearing 2 is insufficient, the lubricating grease in the hollow bolt 3 can enter the oil storage ring groove 221, thereby further extending the roller oiling cycle, so that the roller can operate for a long time and stably;

[0023] The bearing housing 21 is provided with an oil filling hole 211 corresponding to the oil storage ring groove 221, and an oil filling plug 24 for opening and closing the oil filling hole 211 is detachably installed in the oil filling hole 211; the oil filling hole 211 is provided with an internal thread, and the oil filling plug 24 is provided with an external thread, and the oil filling plug 24 is threadedly connected to the oil filling hole 211. By providing the oil filling hole 211, it is convenient to inject lubricating grease into the sleeve bearing 2 and the hollow bolt 3, and by threading the oil filling plug 24 in the oil filling hole 211, it is possible to prevent the lubricating grease from leaking out of the oil filling hole 211. The oil filling plug 24 is threadedly connected to the oil filling hole 211, which makes it easy to disassemble and assemble the oil filling plug 24; the oil filling hole 211 is a stepped hole, and after the oil filling plug 24 is installed in the oil filling hole 211, the head and tail of the oil filling plug 24 are completely located in the oil filling hole 211. The minimum hole diameter of the oil filling hole 211 is larger than the maximum outer diameter of the hollow bolt 3. When the bearing core shaft 22 is aligned and mounted on the roller core shaft 1, the oil filling hole 211 is aligned with the first through hole 222 and the second through hole 11. Then, the hollow bolt 3 can be inserted into the sleeve bearing 2 through the oil filling hole 211, and then the hollow bolt 3 can be threadedly installed into the first through hole 222 and the second through hole 11.

[0024] A first sealing ring 26 is installed between the bearing housing 21 and the roller core shaft 1; a second sealing ring 27 is installed between the bearing housing 21 and the bearing core shaft 22; and a third sealing ring 28 is installed between the bearing core shaft 22 and the roller core shaft 1. By providing the first sealing ring 26, it is possible to prevent the lubricating grease from leaking out from between the bearing housing 21 and the roller core shaft 1; by providing the second sealing ring 27, it is possible to prevent the lubricating grease from leaking out from between the bearing housing 21 and the bearing core shaft 22; and by providing the third sealing ring 28, it is possible to prevent the lubricating grease from leaking out from between the bearing core shaft 22 and the roller core shaft 1.

[0025] A limit stopper 5 is fixedly mounted on the leather roller core shaft 1, and the limit stopper 5 contacts and cooperates with the second sealing ring 27 and the third sealing ring 28. By setting the limit stopper 5, the second sealing ring 27 and the third sealing ring 28 are kept fixed in the axial position of the leather roller core shaft 1, and the second sealing ring 27 and the third sealing ring 28 are prevented from axially moving on the leather roller core shaft 1 and causing oil leakage. A threaded hole corresponding to the limit stopper 5 is provided on the leather roller core shaft 1, and the limit stopper 5 is threadedly connected to the threaded hole by a screw to achieve a fixed connection with the leather roller core shaft 1.

[0026] The leather roller core shaft 1 is provided with a plug-in ring groove 12, which is coaxially arranged with the leather roller core shaft 1, and the bearing core shaft 22 is inserted into the plug-in ring groove 12, and the bearing core shaft 22 and the ring groove are plugged in interference fit. By providing the plug-in ring groove 12 and inserting the bearing core shaft 22 into the plug-in ring groove 12, the connection stability between the bearing core shaft 22 and the leather roller core shaft 1 can be improved.

[0027] It should be pointed out that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the utility model, and these are all 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.

[0028] 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", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A pultrusion roller of a drawing frame, comprising a roller core shaft (1), wherein sleeve bearings (2) are mounted on both ends of the roller core shaft (1), and wherein: The sleeve bearing (2) comprises a bearing shell (21), a bearing core shaft (22) and steel balls (23); the bearing core shaft (22) is sleeved on the roller core shaft (1); the bearing core shaft (22) is located inside the bearing shell (21); two rows of steel balls (23) are installed between the bearing core shaft (22) and the bearing shell (21); an oil storage ring groove (221) is formed in the circumferential direction of the bearing core shaft (22); a first through hole (222) communicating with the oil storage ring groove (221) is formed in the radial direction of the bearing core shaft (22); and a first through hole (222) in radial direction of the roller core shaft (1) is formed in the radial direction of the roller core shaft (1). A second through hole (11) corresponding to the first through hole (222), the first through hole (222) and / or the second through hole (11) being provided with an internal thread, the roller core shaft (1) and the bearing core shaft (22) being connected via a hollow bolt (3), the hollow bolt (3) being threadedly connected to the first through hole (222) and / or the second through hole (11); an oil filling hole (211) corresponding to the oil storage ring groove (221) being provided on the bearing housing (21), an oil filling plug (24) for opening and closing the oil filling hole (211) being detachably installed in the oil filling hole (211).

2. The pultrusion roller of the drawing frame according to claim 1, characterized in that: The oil filling hole (211) is provided with an internal thread, the oil filling plug (24) is provided with an external thread, and the oil filling plug (24) is threadedly connected to the oil filling hole (211).

3. The pultrusion roller of the drawing frame according to claim 1, characterized in that: The inner wall of the bearing housing (21) is provided with two inner slideways (212), the outer wall of the bearing core shaft (22) is provided with two outer slideways (223), the steel balls (23) are installed between the inner slideways (212) and the outer slideways (223), and the steel balls (23) are evenly spaced apart by a retaining frame (25); the oil storage ring groove (221) is located between the two outer slideways (223).

4. The pultrusion roller of the drawing frame according to claim 1, characterized in that: The leather roller core shaft (1) is sleeved with a leather roller sleeve (4).

5. The pultrusion roller of the drawing frame according to claim 1, characterized in that: A first sealing ring (26) is installed between the bearing housing (21) and the roller core shaft (1); a second sealing ring (27) is installed between the bearing housing (21) and the bearing core shaft (22); and a third sealing ring (28) is installed between the bearing core shaft (22) and the roller core shaft (1).

6. The pultrusion roller of the drawing frame according to claim 5, characterized in that: A limit stop plate (5) is fixedly mounted on the leather roller core shaft (1), and the limit stop plate (5) is in contact with and fits with the second sealing ring (27) and the third sealing ring (28).

7. The pultrusion roller of the drawing frame according to claim 1, characterized in that: The leather roller core shaft (1) is provided with an insert ring groove (12), and the bearing core shaft (22) is inserted into the insert ring groove (12).

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