Upper and lower double-drive high-torque double-screw extruder gear box body

Abstract

The invention relates to an up-down double-drive high-torque double-screw extruder gearbox casing, and relates to the field of transmission case equipment, the up-down double-drive high-torque double-screw extruder gearbox casing comprises a casing body and a bearing transmission member, the bearing transmission member comprises an input bearing, an upper output bearing and a lower output bearing, the input bearing, the upper output bearing and the lower output bearing are installed in the box body, the input bearing is meshed with the upper output bearing, the upper input bearing is meshed with the lower output bearing, an installation groove is formed in the bottom of the box body, and the oil collection box is arranged in the installation groove. A mounting groove is formed in the side wall of the box body, the oil collecting box penetrates through the mounting groove to be arranged in the box body, the oil collecting box can block an opening of the mounting groove, and the flow guide part is mounted on the oil collecting box and used for preventing lubricating oil from entering a gap between the oil collecting box and the side wall of the box body. The gear box has the effect that the oil collecting groove in the gear box body can be conveniently cleaned.

Description

Technical Field

[0001] The present application relates to the field of transmission box equipment, and in particular to a gear box body for an upper and lower dual-drive high-torque twin-screw extruder. Background Art

[0002] Extruder, also known as screw extruder, is a device that relies on the pressure and shear force generated by the rotation of the screw to fully plasticize and evenly mix the materials, and finally pass through the die to form. According to the number and arrangement of the screws, extruders can be divided into many types, among which the most common are twin-screw extruders and single-screw extruders.

[0003] The twin-screw extruder gearbox is an important component of the extruder. The upper and lower dual-drive high-torque twin-screw extruder gearbox is one of the twin-screw extruder gearboxes, including an upper output shaft system and a lower output shaft system, both of which are located on the same axis in the vertical direction of the gearbox for transmission.

[0004] In order to reduce the wear of the gear tooth surface and dissipate heat, the existing upper and lower dual-drive high-torque twin-screw extruder gear box is usually equipped with an oil pipeline in the box, and the lubricating oil is sprayed to the transmission connection in the box through the oil spray nozzle. In order to recover the lubricating oil and avoid leakage of the lubricating oil, an oil collecting tank is opened in the box. However, the lubricating oil will drive the waste chips and other impurities generated by the friction of the screw during operation into the gap between the oil collecting tank and the side wall of the box, making it difficult to clean the oil collecting tank. Summary of the invention

[0005] In order to facilitate the cleaning of the oil collecting tank in the gear box, the present application provides an upper and lower dual-drive high-torque twin-screw extruder gear box.

[0006] The present application provides a high-torque twin-screw extruder gearbox with a top and bottom dual-drive, which adopts the following technical solution: A gear box for an upper and lower dual-drive high-torque twin-screw extruder comprises a box body and a bearing transmission member, wherein the bearing transmission member comprises an input bearing, an upper output bearing and a lower output bearing, wherein the input bearing, the upper output bearing and the lower output bearing are mounted in the box body, wherein the input bearing is meshed with the upper output bearing, wherein the upper input bearing is meshed with the lower output bearing, and further comprising an oil collecting box, wherein a mounting groove is provided at the bottom of the box body, wherein the oil collecting box is arranged in the box body through the mounting groove, and wherein the oil collecting box can seal the opening of the mounting groove, wherein the flow guide member is mounted on the oil collecting box, and wherein the flow guide member is used to prevent lubricating oil from entering the gap between the oil collecting box and the side wall of the box body.

[0007] By adopting the above technical solution, the upper output bearing and the lower output bearing are installed in the box body, and a mounting groove is opened at the bottom of the box body. The oil collecting box can pass through the mounting groove and enter the box body, and the oil collecting box can seal the opening of the mounting groove, so as to ensure the internal sealing of the box body. At the same time, when lubricating the upper output bearing and the lower output bearing, all the lubricating oil can be diverted to the oil collecting box through the guide piece to prevent the lubricating oil from entering the gap between the side wall of the box body and the oil collecting box, thereby causing leakage of the lubricating oil, thereby reducing the difficulty of cleaning the box body.

[0008] In a specific possible implementation scheme, it also includes a sliding plate. A sliding groove is opened on the oil collecting box portion at the upper end of the installation groove. The sliding plate is installed in the sliding groove and can slide in the sliding groove.

[0009] By adopting the above technical solution, the sliding plate and the guide member are arranged, and the guide member is installed on the oil collecting box. When the guide member and the oil collecting box are to be installed, the sliding plate is pushed upward relative to the box body to make it enter the sliding groove, and then the guide plate and the oil collecting box are pushed into the interior of the box body. The lubricating oil on the side wall is guided into the oil collecting box through the guide plate, so as to prevent the lubricating oil from flowing into the oil collecting box and the side wall of the box body to cause leakage of the lubricating oil, thereby reducing the difficulty of cleaning the box body.

[0010] In a specific feasible implementation scheme, the flow guide is formed by connecting a plurality of flow guide plates in pairs, the flow guide is arranged in a bucket shape, a snap-in block is arranged on the flow guide, the snap-in block can be plugged into the oil collecting box, and the lower end surface of the flow guide is pressed against the upper opening of the oil collecting box.

[0011] By adopting the above technical solution, the guide plate is formed by connecting a plurality of guide plates in pairs, and the guide piece is arranged in a bucket shape. The clamping block arranged on the guide piece can be inserted into the opening at the upper end of the oil collecting box, thereby ensuring the tightness of the connection between the two when the lubricating oil is recovered, thereby avoiding leakage of the lubricating oil.

[0012] In a specific possible implementation scheme, a box body slot is provided on the side wall of the box body corresponding to the flow guide member, and the flow guide member can slide in the box body slot.

[0013] By adopting the above technical solution, a box body slot is opened on the box body, and the guide piece can slide along the box body slot. When the oil collecting box is moved into place, the guide piece can be snapped into the box body slot to limit and fix the guide piece and the oil collecting box, thereby avoiding leakage of lubricating oil due to the gap between the oil collecting box and the side wall of the box and the shaking of the oil collecting box when the gearbox is in use.

[0014] In a specific possible implementation scheme, the lower end of the guide member extends obliquely into the oil collecting box, and an extension block is provided on the side wall of the box body above the box body slot, and the thickness of the extension block gradually increases from top to bottom along the height direction of the box body.

[0015] By adopting the above technical solution, an extension block is provided on the box body on the box slot, and the thickness of the extension block gradually increases from top to bottom along the height direction of the box, thereby preventing the lubricating oil from flowing into the box slot, thereby further improving the collection effect of the lubricating oil.

[0016] In a specific feasible implementation scheme, an oil collecting box slot is provided on the oil collecting box corresponding to the sliding plate, the sliding plate can be inserted into the sliding plate slot, and a positioning mechanism is provided on the oil collecting box, and the positioning mechanism is used to fix the sliding plate.

[0017] By adopting the above technical solution, a sliding plate clamping groove is provided on the oil collecting box corresponding to the sliding plate, and the sliding plate can be inserted into the sliding plate clamping groove, and then the sliding plate is fixed by a positioning mechanism arranged on the oil collecting box to avoid vibration of the gear box during transmission, thereby causing shaking of the sliding plate and leakage of lubricating oil.

[0018] In a specific possible implementation scheme, the positioning mechanism includes a positioning pin and a positioning spring, a positioning pin slot is opened on the side wall of the oil collecting box, the positioning pin slot is connected to the oil collecting box slot, the positioning pin is slidably connected in the positioning pin slot, the positioning spring is sleeved on the positioning pin, one end of the positioning spring is fixedly connected to the positioning pin, and the other end of the positioning spring is fixedly connected to the side wall of the positioning pin slot, a positioning hole is opened on the sliding plate corresponding to the positioning pin, and the positioning pin can be clamped in the positioning hole.

[0019] By adopting the above technical solution, the positioning pin is slidably connected in the positioning pin slide groove opened on the side wall of the oil collecting box, and the positioning pin slide groove is connected to the oil collecting box slot, so that the positioning pin can slide in the positioning pin slide groove and extend into the oil collecting box slot, and be inserted into the positioning hole. Under the limiting action of the positioning spring, the positioning pin can ensure the stability of the positioning pin limiting the sliding plate.

[0020] In a specific feasible implementation scheme, a support rod is installed on the positioning pin, the axis of the support rod is arranged perpendicular to the axis of the positioning pin, and a support rod slide groove is opened on the side wall of the positioning pin slide groove corresponding to the support rod, and the support rod can slide in the support rod slide groove.

[0021] By adopting the above technical solution and arranging a support rod on the positioning pin, the positioning pin can be pulled out, and the support rod can slide along the support rod slide groove. The positioning pin can then be rotated to clamp the support rod on the side wall of the oil collecting box. This avoids the situation in which the support rod slides under the action of the positioning spring and is clamped in the positioning hole again after the support rod is pulled out, thereby preventing the movement of the sliding plate from being interfered with.

[0022] In a specific possible implementation manner, a filter is installed in the oil collecting box.

[0023] By adopting the above technical solution, a filter is installed in the oil collecting box, so that impurities and waste chips flowing with the lubricating oil can be filtered, thereby facilitating the recovery and reuse of the lubricating oil.

[0024] In a specific implementation scheme, the housing body includes an upper housing and a lower housing, the upper housing and the lower housing are detachably connected, the upper output bearing is installed in the upper housing, the lower output bearing is installed in the lower housing, and the input bearing is installed between the upper housing and the lower housing.

[0025] By adopting the above technical solution, the box body is configured as an upper box body and a lower box body, the upper output bearing is installed in the upper box body, the lower output bearing is installed in the lower box body, and the input bearing is installed between the upper box body and the lower box body, thereby facilitating the disassembly and assembly of the box body and facilitating the cleaning and maintenance of the device inside the box body.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The upper output bearing and the lower output bearing are installed in the box body. A mounting groove is provided at the bottom of the box body. The oil collecting box can pass through the mounting groove and enter the box body. The oil collecting box can block the opening of the mounting groove. Thus, while ensuring the internal sealing of the box body, when lubricating the upper output bearing and the lower output bearing, all the lubricating oil can be diverted to the oil collecting box through the guide piece to prevent the lubricating oil from entering the gap between the side wall of the box body and the oil collecting box, thereby reducing the difficulty of cleaning the box body. 2. The setting of the sliding plate and the guide piece, the guide piece is installed on the oil collecting box. When installing the guide piece and the oil collecting box, the sliding plate is pushed upward relative to the box body to make it enter the sliding groove, and then the guide plate and the oil collecting box are pushed into the box body. The lubricating oil on the side wall is guided to the oil collecting box through the guide plate to prevent the lubricating oil from flowing into the oil collecting box and the side wall of the box body, causing the leakage of the lubricating oil, thereby reducing the difficulty of cleaning the box body; 3. The locating pin is slidably connected in the locating pin slot provided on the side wall of the oil collecting box, and the locating pin slot is connected to the oil collecting box slot, so that the locating pin can slide in the locating pin slot and extend into the oil collecting box slot, and be inserted into the locating hole. Under the limiting action of the locating spring, the locating pin can ensure the stability of the limiting of the sliding plate by the locating pin. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a partial cross-sectional structural schematic diagram of an embodiment of the present application.

[0028] Figure 2 It is a schematic diagram of the structure of an embodiment of the present application.

[0029] Figure 3 for Figure 2 Cross-sectional view along the AA direction.

[0030] Figure 4 for Figure 3 Enlarged view of part A.

[0031] Figure 5 This is a partial cross-sectional view of the positioning mechanism installed in the oil collecting box in the embodiment of the present application.

[0032] Explanation of the reference numerals: 1. Box body; 11. Mounting groove; 12. Slide groove; 13. Box body slot; 2. Upper output bearing; 3. Lower output bearing; 4. Input bearing; 5. Oil collecting box; 51. Oil collecting box slot; 52. Positioning pin slot; 53. Support rod slot; 6. Guide piece; 61. Card block; 7. Positioning mechanism; 71. Positioning pin; 72. Positioning spring; 73. Support rod; 8. Extension block; 9. Slide plate; 91. Positioning hole; 10. Filter; 11a. Upper box body; 12a. Lower box body. DETAILED DESCRIPTION

[0033] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" 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 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. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] In this specification, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features.

[0035] The embodiment of the present application discloses a gear box for an upper and lower dual-drive high-torque twin-screw extruder.

[0036] like Figure 1 As shown, the upper and lower dual-drive high torque twin-screw extruder gear box includes a box body 1, a bearing transmission part and an oil collecting box 5. The box body 1 includes an upper box 11a and a lower box 12a, and the bearing transmission part includes an upper output bearing 2, a lower output bearing 3 and an input bearing 4. The input bearing 4 is composed of a plurality of drive shafts, and gears and splines are arranged on the drive shafts, and transmission is performed between the gears and the spline shafts through meshing.

[0037] The upper output bearing 2 is installed in the upper housing 11a, and the lower output bearing 3 is installed in the lower housing 12a. The upper output bearing 2 and the lower output bearing 3 are installed on the same axis in the vertical direction. The input bearing 4 is meshed with the upper output bearing 2 through the gears and splines on the drive shaft. The upper output bearing 2 and the lower output bearing 3 are provided with gears and splines of different sizes according to the required rotation speed of the screw, so that the gears and splines between the upper output bearing 2 and the lower output bearing 3 are meshed to perform reduction transmission, and at the same time, the torque of the screw can be increased to increase the service life of the equipment. A mounting groove 11 is provided on the lower housing 12a, and the oil collecting box 5 is arranged in the housing body 1 through the mounting groove 11, and the oil collecting box 5 can seal the opening of the mounting groove 11. A sealing ring can be provided on the oil collecting box 5 to ensure the sealing effect when the oil collecting box 5 seals the opening of the mounting groove 11 to avoid leakage of lubricating oil.

[0038] like Figure 2 and Figure 3 As shown, in the embodiment of the present application, it also includes a sliding plate 9 and a guide member 6. The guide member 6 is installed on the oil collecting box 5. A sliding groove 12 is opened on the side wall of the lower box body 12a at the upper end of the installation groove 11. The sliding plate 9 is slidably connected in the sliding groove 12. A limiting block is arranged on the sliding plate 9. A limiting block slide groove is arranged on the side wall of the upper box body 11a. The limiting block is slidably connected in the limiting block slide groove, which can enable the sliding plate 9 to slide into the sliding groove 12, thereby preventing the sliding plate 9 from interfering with the guide member 6 when the guide member 6 enters the lower box body 12a along with the oil collecting box 5.

[0039] The provision of the sliding plate 9 can avoid interference with the installation of the flow guide 6 and the oil collecting box 5, and at the same time the sliding plate 9 can be clamped on the oil collecting box 5, thereby ensuring the sealing of the lower box body 12a.

[0040] The guide member 6 is connected in pairs by a plurality of guide plates, and the guide plates are preferably set as trapezoidal plates, so that the guide member 6 is set in a bucket shape, which is conducive to guiding the lubricating oil. A clamping block 61 is provided on the guide plate, and the clamping block 61 can be inserted into the upper opening of the oil collecting box 5. A box clamping groove 13 is provided on the side wall of the lower box 12a corresponding to the guide member 6. When the oil collecting box 5 moves into the lower box 12a, the guide member 6 can move along the box clamping groove 13 and finally be clamped in the box clamping groove 13. Under the restriction of the oil collecting box 5 and the box clamping groove 13, the guide member 6 improves the installation stability of the guide member 6. A filter screen 10 is provided in the oil collecting box, and the filter screen 10 is clamped or bolted on the inner wall of the oil collecting box 5. The filter screen 10 has a small filter hole size and can filter out most impurities and waste.

[0041] The lower end of the guide member 6 extends obliquely into the oil collecting box 5, and an extension block 8 is provided on the side wall of the lower box body 12a above the box body slot 13. The thickness of the extension block 8 gradually increases from top to bottom along the height direction of the box body 1, so as to prevent the lubricating oil from flowing into the sliding plate slot 91 and the box body slot 13, thereby further improving the collection effect of the lubricating oil. At the same time, the setting of the filter screen 10 can filter impurities and waste chips flowing with the lubricating oil, thereby facilitating the recovery and reuse of the lubricating oil.

[0042] like Figure 4 and Figure 5 As shown, an oil collecting box slot 51 is provided on the oil collecting box 5 corresponding to the sliding plate 9. When the sliding plate 9 slides downward, it can be inserted into the sliding plate 9 slot. A positioning mechanism 7 is provided on the oil collecting box 5. The positioning mechanism 7 includes a positioning pin 71 and a positioning spring 72. A positioning pin slot 52 is provided on the side wall of the oil collecting box 5. The positioning pin slot 52 is connected to the oil collecting box slot 51. The positioning pin 71 is slidably connected to the positioning pin slot 52. The positioning spring 72 is sleeved on the positioning pin 71. One end of the positioning spring 72 is fixedly connected to the positioning pin 71, and the other end of the positioning spring 72 is fixedly connected to the inner wall of the positioning pin slot 52.

[0043] The locating pin 71 is slidably connected in the locating pin slot 52 provided on the side wall of the oil collecting box 5, and the locating pin slot 52 is connected to the oil collecting box slot 51, so that the locating pin 71 can slide in the locating pin slot 52 and extend into the oil collecting box slot 51, and be inserted into the locating hole 91. Under the limiting action of the locating spring 72, the locating pin 71 can ensure the stability of the limiting of the sliding plate 9 by the locating pin 71.

[0044] When the locking cam 73 is in the unlocking state, the locking cam 73 is in the unlocking state, and the locking cam 73 is in the unlocking state, so that the locking cam 73 can be locked in the unlocking state.

[0045] The implementation principle of the gear box of an upper and lower dual-drive high-torque twin-screw extruder of the present application embodiment is as follows: the guide member 6 is plugged into the oil collecting box 5 through the clamping block 61, the sliding plate 9 is moved upward, and the oil collecting box 5 is pushed into the lower box body 12a, and the guide member 6 slides along the box body slot 13 until the oil collecting box 5 moves into place, the guide member 6 is clamped in the box body slot 13, the sliding plate 9 is moved downward, and the positioning pin 71 is slidably connected in the positioning pin slot 52 provided on the side wall of the oil collecting box 5, and the positioning pin slot 52 is connected to the oil collecting box slot 51, so that the positioning pin 71 can slide in the positioning pin slot 52 and extend to the oil collecting box. The box card slot 51 is inserted into the positioning hole 91, and the positioning pin 71 can ensure the stability of the positioning pin 71 limiting the sliding plate 9 under the limiting action of the positioning spring 72. When the gear box is in use, the lubricating oil is sprayed on the upper output bearing 2, the lower output bearing 3 and the input bearing 4, and the excess lubricating oil falls into the oil collecting box 5. The lubricating oil sprayed on the side wall of the lower box body 12a moves downward along the side wall and is prevented from entering the box card slot 13 under the drainage action of the extension block 8, so that all the lubricating oil is collected in the oil collecting box 5, the leakage of the lubricating oil is avoided, and the difficulty of cleaning the box body 1 is increased.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A gear box for an upper and lower dual-drive high-torque twin-screw extruder, comprising a box body (1) and a bearing transmission member, wherein the bearing transmission member comprises an input bearing (4), an upper output bearing (2) and a lower output bearing (3), wherein the input bearing (4), the upper output bearing (2) and the lower output bearing (3) are installed in the box body (1), wherein the input bearing (4) is meshed with the upper output bearing (2), and the upper output bearing (2) is meshed with the lower output bearing (3), and wherein: The invention also comprises an oil collecting box (5) and a flow guide (6); a mounting groove (11) is provided at the bottom of the box body (1); the oil collecting box (5) is arranged in the box body (1) through the mounting groove (11); and the oil collecting box (5) is capable of blocking the opening of the mounting groove (11); the flow guide (6) is installed on the oil collecting box (5); and the flow guide (6) is used to prevent lubricating oil from entering the gap between the oil collecting box (5) and the side wall of the box body (1).

2. The upper and lower dual-drive high torque twin-screw extruder gear box according to claim 1 is characterized in that: It also comprises a sliding plate (9), a sliding groove (12) being provided on the oil collecting box (5) at the upper end of the mounting groove (11), and the sliding plate (9) being mounted in the sliding groove (12) and being able to slide in the sliding groove (12).

3. The gear box of the upper and lower dual-drive high torque twin-screw extruder according to claim 2 is characterized in that: The flow guide (6) is formed by connecting a plurality of flow guide plates in pairs. The flow guide (6) is arranged in a bucket shape. A clamping block (61) is arranged on the flow guide (6). The clamping block (61) can be plugged into the oil collecting box (5). The lower end surface of the flow guide (6) is pressed against the upper opening of the oil collecting box (5).

4. The upper and lower dual-drive high torque twin-screw extruder gear box according to claim 2, characterized in that: A box body slot (13) is provided on the side wall of the box body (1) corresponding to the flow guide member (6), and the flow guide member (6) can slide in the box body slot (13).

5. The gear box of the upper and lower dual-drive high torque twin-screw extruder according to claim 4 is characterized in that: The lower end of the flow guide (6) extends obliquely into the oil collecting box (5), and an extension block (8) is provided on the side wall of the box body (1) above the box body slot (13), and the thickness of the first extension block (8) gradually increases from top to bottom along the height direction of the box body (1).

6. The upper and lower dual-drive high torque twin-screw extruder gear box according to claim 2, characterized in that: The oil collecting box (5) is provided with an oil collecting box slot (51) corresponding to the sliding plate (9), and the sliding plate (9) can be inserted into the oil collecting box slot (51). The oil collecting box (5) is provided with a positioning mechanism (7), and the positioning mechanism (7) is used to fix the sliding plate (9).

7. The gear box of the upper and lower dual-drive high torque twin-screw extruder according to claim 6 is characterized in that: The positioning mechanism (7) comprises a positioning pin (71) and a positioning spring (72); a positioning pin slot (52) is provided on the side wall of the oil collecting box (5); the positioning pin slot (52) is connected to the oil collecting box slot (51); the positioning pin (71) is slidably connected in the positioning pin slot (52); the positioning spring (72) is sleeved on the positioning pin (71); one end of the positioning spring (72) is fixedly connected to the positioning pin (71); the other end of the positioning spring (72) is fixedly connected to the side wall of the positioning pin slot (52); a positioning hole (91) is provided on the sliding plate (9) corresponding to the positioning pin (71); the positioning pin (71) can be snapped into the positioning hole (91).

8. The gear box of the upper and lower dual-drive high torque twin-screw extruder according to claim 7 is characterized in that: A support rod (73) is installed on the positioning pin (71), and the axis of the support rod (73) is arranged perpendicular to the axis of the positioning pin (71). A support rod slide groove (53) is opened on the side wall of the positioning pin slide groove (52) corresponding to the support rod (73), and the support rod (73) can slide in the support rod slide groove (53).

9. The gear box of the upper and lower dual-drive high torque twin-screw extruder according to claim 2, characterized in that: A filter screen (10) is installed in the oil collecting box (5).

10. The gear box of the upper and lower dual-drive high torque twin-screw extruder according to claim 1, characterized in that: The housing body (1) comprises an upper housing (11a) and a lower housing (12a); the upper housing (11a) and the lower housing (12a) are detachably connected; the upper output bearing (2) is installed in the upper housing (11a); the lower output bearing (3) is installed in the lower housing (12a); and the input bearing (4) is installed between the upper housing (11a) and the lower housing (12a).

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