Distribution box

Abstract

The utility model provides a distribution box, and belongs to the technical field of speed reducers. Comprising a box body, one end of the box body is provided with a first shaft hole used for insertion of an input shaft, the other end of the box body is provided with two second shaft holes used for insertion of output shafts, the box body is divided into an upper-layer box and a lower-layer box from top to bottom, and the first shaft hole and the second shaft holes are symmetrically divided into two semicircular notches; and a first connecting piece is arranged between the upper-layer box and the lower-layer box. According to the distribution box, the interior of the box body can be exposed by opening the upper-layer box, all transmission parts in the box body can be directly disassembled and assembled, and the distribution box has the effects of being convenient to disassemble and assemble and improving the maintenance efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of reducers, in particular to a distribution box. Background Art

[0002] The distribution box is an important component of the twin-screw extruder and plays a vital role in the transmission and distribution of torque. The output end of the motor in the twin-screw extruder is connected to the reduction box, and the distribution box is set at the output end of the reduction box.

[0003] The traditional distribution box includes a box body, one end of which is plugged with an input shaft for connecting to a reduction box, and the other end of which is plugged with two output shafts for correspondingly connecting to two screws. The box body is also provided with transmission parts for connecting the input shaft and the output shaft, such as gears and bushings. An inspection port for disassembling and assembling gears and other parts is provided on the top of the box body, and a cover plate is provided at the inspection port. During the installation of the input shaft and the output shaft, the staff needs to knock the corresponding shaft to make it plug into the shaft hole, and adjust the position of gears and other parts through the inspection port to ensure that each transmission part can be connected, which is inconvenient for disassembly and assembly. Utility Model Content

[0004] In view of the above problems, the utility model provides a distribution box.

[0005] In order to achieve the above-mentioned invention object, the technical solution adopted by the utility model is as follows:

[0006] A distribution box is provided, comprising a box body, a first axial hole for plugging in an input shaft is provided at one end of the box body, two second axial holes for plugging in an output shaft are provided at the other end of the box body, the box body is divided into an upper box and a lower box from top to bottom, the first axial hole and the second axial hole are symmetrically divided into two semicircular notches, and a first connecting piece is provided between the upper box and the lower box.

[0007] Furthermore, a positioning member is provided between the upper box and the lower box, and the positioning member includes a plurality of positioning plates with an isosceles trapezoidal cross-section. The plurality of positioning plates are fixed on the side walls on both sides of the notch of the lower box, and the trapezoidal upper bottom size of the positioning plate cross-section is smaller than the lower bottom size. The upper box is provided with a plurality of grooves with sizes matching the positioning plates.

[0008] Furthermore, the first connecting member includes multiple fastening bolts, multiple through holes are vertically opened on the top of the upper box, and multiple threaded holes adapted to the fastening bolts are vertically opened on the lower box. After the multiple fastening bolts correspond to each other one by one and pass through the through holes, they are threadedly connected in the corresponding threaded holes.

[0009] Furthermore, a sealing gasket is provided between the upper box and the lower box.

[0010] Furthermore, a sealing cover is detachably connected to the side wall of the box body where the first axial hole is located, and the sealing cover is provided with a mounting groove whose size matches the side wall of the box body, and a mounting hole for communicating with the first axial hole is penetrated through the bottom wall of the mounting groove.

[0011] Furthermore, a chamfer is provided on the inner wall of the installation groove at the opening.

[0012] Furthermore, a loading frame for containing lubricating oil and transmission component debris is placed in the lower box, an installation cavity for accommodating the transmission component is opened in the loading frame, an oil outlet hole is opened on one side of the loading frame, a sealing plug for opening / closing the oil outlet hole is provided in the loading frame, and an oil outlet pipe is connected to one side of the lower box, and a valve is provided on the oil outlet pipe.

[0013] Furthermore, a second connecting member is provided between the sealing plug and the oil outlet pipe, and the second connecting member includes a connecting rod, which movably passes through the oil outlet hole, and one end of the connecting rod is threadedly connected to the oil outlet pipe. The sealing plug is coaxially arranged on the outer wall of the connecting rod. The sealing plug is conical, and the conical surface of the outer wall of the sealing plug is movably in contact with the inner wall of the oil outlet hole.

[0014] The beneficial effects of the present invention are as follows: a worker can expose the internal space of the box body by lifting the upper box, assemble the input shaft, output shaft and other transmission parts into one, and put them into the lower box together, and then cover the upper box to complete the installation of the distribution box; when disassembling and repairing the distribution box, the first connecting piece can also be opened to lift the upper box, and then the transmission parts that need to be repaired can be directly taken out. The distribution box of the present application does not require the worker to tap the input shaft / output shaft while adjusting the position of other transmission parts, and has the effects of convenient disassembly and assembly and improved maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a distribution box according to an embodiment of the present application.

[0016] Figure 2 This is a schematic diagram of an exploded view of a distribution box according to an embodiment of the present application.

[0017] Figure 3 This is a schematic diagram of a sealing cover of a distribution box according to an embodiment of the present application.

[0018] Figure 4 This is a schematic diagram of the structure of a second connecting piece of a distribution box according to an embodiment of the present application.

[0019] Among them, 1. box body; 11. upper box; 111. groove; 12. lower box; 13. first axial hole; 14. second axial hole; 2. first connecting piece; 21. fastening bolt; 3. positioning piece; 4. sealing gasket; 5. sealing cover; 51. mounting groove; 52. chamfer; 53. mounting hole; 6. loading frame; 61. mounting cavity; 62. oil outlet hole; 7. oil outlet pipe; 71. valve; 8. sealing plug; 9. connecting rod. DETAILED DESCRIPTION

[0020] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] The present application embodiment discloses a distribution box, referring to Figure 1 , Figure 2 and Figure 3 , including a box body 1, one end of the box body 1 is provided with a first shaft hole 13 for inserting an input shaft, and the other end of the box body 1 is provided with two second shaft holes 14 for inserting an output shaft. The box body 1 is divided into an upper box 11 and a lower box 12 from top to bottom, the first shaft hole 13 and the second shaft hole 14 are symmetrically divided into two semicircular notches, and a first connecting member 2 is installed between the upper box 11 and the lower box 12.

[0022] In the embodiment of the present application, the box body 1 is divided into an upper box 11 and a lower box 12. The staff only needs to lift the upper box 11 to expose the internal space of the box body 1. When installing the input shaft, output shaft and other transmission parts, the transmission parts can be first installed on the corresponding input shaft and output shaft, and then placed together in the lower box 12. The bearings of the input shaft and the output shaft can be respectively installed in the corresponding notches on the lower box 12. Finally, the upper box 11 is covered, and the upper box 11 and the lower box 12 are fixed by the first connecting member 2 to complete the installation. When disassembling and repairing the distribution box, the transmission parts in the box body 1 can also be directly taken out for repair and replacement by opening the upper box 11. Compared with the traditional disassembly and assembly method, the distribution box of the present application does not require the staff to tap the input shaft / output shaft while adjusting the position of other transmission parts, which has the effect of convenient disassembly and assembly and improved maintenance efficiency.

[0023] Furthermore, a positioning member 3 is installed between the upper box 11 and the lower box 12. The positioning member 3 includes a plurality of positioning plates with an isosceles trapezoidal cross-section. The plurality of positioning plates are integrally fixed on the side walls on both sides of the notch of the lower box 12, and the trapezoidal upper bottom size of the positioning plate cross-section is smaller than the lower bottom size. The upper box 11 is provided with a plurality of grooves 111 with sizes matching the positioning plates.

[0024] In the embodiment of the present application, the positioning plate is inserted into the corresponding groove 111 to ensure that the surrounding side walls of the upper box 11 and the lower box 12 are flush when installed. In addition, after installation, the positioning plate contacts the side walls of the groove 111, which can further improve the stability of the upper box 11 and the lower box 12.

[0025] Specifically, the first connecting member 2 includes a plurality of fastening bolts 21, a plurality of through holes are vertically opened through the top of the upper box 11, and a plurality of threaded holes adapted to the fastening bolts 21 are vertically opened on the lower box 12. The plurality of fastening bolts 21 correspond to each other one by one and pass through the through holes and are threadedly connected in the corresponding threaded holes.

[0026] In the embodiment of the present application, after the staff overlaps the upper box 11 on the lower box 12, they correspond to each other and insert multiple fastening bolts 21 into the through holes, and then tighten the fastening bolts 21 to fix the upper box 11 and the lower box 12 as a whole.

[0027] Since lubricating oil for lubricating each transmission member is usually added into the distribution box, a sealing gasket 4 is installed between the upper box 11 and the lower box 12 to improve the sealing performance between the upper box 11 and the lower box 12. The sealing gasket 4 can be made of flexible materials such as rubber.

[0028] Furthermore, a sealing cover 5 is detachably connected to the side wall of the box body 1 where the first axial hole 13 is located. The sealing cover 5 is provided with a mounting groove 51 whose size matches the side wall of the box body 1 , and a mounting hole 53 for communicating with the first axial hole 13 is penetrated through the bottom wall of the mounting groove 51 .

[0029] In the embodiment of the present application, the sealing cover 5 can be connected to the same side of the upper box 11 and the lower box 12 by multiple bolts. After the upper box 11 is connected to the lower box 12 to form a whole, the sealing cover 5 can be installed on the side wall of the box body 1 where the first shaft hole 13 is located. Since the size of the installation groove 51 is adapted to the side wall, when the box body 1 is inserted into the installation groove 51, the installation stability between the upper box 11 and the lower box 12 can be further improved.

[0030] In order to facilitate the installation of the sealing cover 5 on the box body 1 , a chamfer 52 is formed on the inner wall of the installation groove 51 at the opening.

[0031] During the operation of the transmission parts in the distribution box, some transmission parts will produce debris due to mutual friction during operation, such as gears. Therefore, a loading frame 6 for containing lubricating oil and transmission part debris is placed in the lower box 12, and a mounting cavity 61 for accommodating the transmission parts is opened in the loading frame 6. Figure 4An oil outlet hole 62 is opened on one side of the loading frame 6, and a sealing plug 8 for opening / closing the oil outlet hole 62 is installed in the loading frame 6. An oil outlet pipe 7 is connected to one side of the lower box 12, and a valve 71 is provided on the oil outlet pipe 7.

[0032] In the embodiment of the present application, when the staff disassembles and repairs the distribution box, they can first take out the input shaft, output shaft and other transmission parts, then take out the sealing plug 8 and open the valve 71, so that the lubricating oil in the loading frame 6 can flow out along the oil outlet pipe 7. It is only necessary to place a container at the outlet of the oil outlet pipe 7 to collect the discharged lubricating oil for reuse. Since the transmission part debris is made of metal, most of the transmission part debris will settle on the bottom wall of the loading frame 6, and only a small amount of debris will be discharged along the oil outlet pipe 7. Then take out the loading frame 6, and the transmission part debris in the loading frame 6 can be cleaned. In this way, the transmission part debris in the box body 1 can be cleaned in time, and the stability of each transmission part in the distribution box during operation can be improved. The sealing plug 8 can also be made of rubber material.

[0033] Furthermore, a second connecting member is installed between the sealing plug 8 and the oil outlet pipe 7, and the second connecting member includes a connecting rod 9, which movably passes through the oil outlet hole 62, and one end of the connecting rod 9 is threadedly connected to the oil outlet pipe 7. An annular groove is provided on the outer wall of the connecting rod 9, and the sealing plug 8 is coaxially embedded in the annular groove. The sealing plug 8 is conical, and the conical surface of the outer wall of the sealing plug 8 is in movably contact with the inner wall of the oil outlet hole 62.

[0034] In the embodiment of the present application, after the staff takes out the transmission parts in the lower box 12, they rotate the connecting rod 9 to move it out of the oil outlet pipe 7, which can drive the sealing plug 8 out of the oil outlet hole 62, and allow the lubricating oil in the loading frame 6 to be discharged along the oil outlet pipe 7. After the loading frame 6 is cleaned, the connecting rod 9 is passed through the oil outlet hole 62 and threadedly connected to the oil outlet pipe 7, and then the connecting rod 9 is rotated to move the connecting rod 9 into the oil outlet pipe 7, which can drive the sealing plug 8 to gradually enter the oil outlet hole 62 until the conical surface of the sealing plug 8 abuts against the inner wall of the oil outlet hole 62. The second connecting member can improve the stability of the sealing plug 8 when blocking the oil outlet hole 62.

[0035] The implementation principle of a distribution box in an embodiment of the present application is as follows: the box body 1 is divided into an upper box 11 and a lower box 12, and the staff only needs to lift the upper box 11 to expose the internal space of the box body 1. When installing the input shaft, output shaft and other transmission parts, the transmission parts can be first installed on the corresponding input shaft and output shaft, and then placed together in the lower box 12. The bearings of the input shaft and the output shaft can be respectively installed in the corresponding notches on the lower box 12, and finally the upper box 11 is covered, and the upper box 11 and the lower box 12 are fixed by the first connecting member 2 to complete the installation. When disassembling and repairing the distribution box, the transmission parts in the box body 1 can also be directly taken out for repair and replacement by opening the upper box 11. Compared with the traditional disassembly and assembly method, the distribution box of the present application has the effect of convenient disassembly and assembly and improved maintenance efficiency.

[0036] It should be understood by those skilled in the art that, although preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention. Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A distribution box, characterized in that: The invention comprises a box body (1), one end of which is provided with a first axial hole (13) for inserting an input shaft, and the other end of which is provided with two second axial holes (14) for inserting an output shaft. The box body (1) is divided from top to bottom into an upper box (11) and a lower box (12), the first axial hole (13) and the second axial hole (14) are symmetrically divided into two semicircular notches, and a first connecting member (2) is provided between the upper box (11) and the lower box (12).

2. A distribution box according to claim 1, characterized in that: A positioning member (3) is provided between the upper box (11) and the lower box (12), and the positioning member (3) comprises a plurality of positioning plates with isosceles trapezoidal cross-sections. The plurality of positioning plates are fixedly arranged on the side walls on both sides of the notch of the lower box (12), and the upper bottom size of the trapezoidal cross-section of the positioning plate is smaller than the lower bottom size. The upper box (11) is provided with a plurality of grooves (111) with sizes matching the positioning plates.

3. A distribution box according to claim 1, characterized in that: The first connecting member (2) includes a plurality of fastening bolts (21), a plurality of through holes are vertically opened through the top of the upper box (11), and a plurality of threaded holes adapted to the fastening bolts (21) are vertically opened on the lower box (12), and the plurality of fastening bolts (21) correspond to each other one by one and are threadedly connected in the corresponding threaded holes after passing through the through holes.

4. A distribution box according to claim 1, characterized in that: A sealing gasket (4) is provided between the upper box (11) and the lower box (12).

5. A distribution box according to claim 1, characterized in that: A sealing cover (5) is detachably connected to the side wall of the box body (1) where the first axial hole (13) is located, and the sealing cover (5) is provided with a mounting groove (51) whose size matches that of the side wall of the box body (1), and a mounting hole (53) for communicating with the first axial hole (13) is provided through the inner bottom wall of the mounting groove (51).

6. A distribution box according to claim 5, characterized in that: The inner wall of the installation groove (51) is provided with a chamfer (52) at the opening.

7. A distribution box according to claim 1, characterized in that: A loading frame (6) for containing lubricating oil and transmission component debris is placed in the lower box (12), a mounting cavity (61) for accommodating the transmission component is provided in the loading frame (6), an oil outlet hole (62) is provided on one side of the loading frame (6), a sealing plug (8) for opening / closing the oil outlet hole (62) is provided in the loading frame (6), and an oil outlet pipe (7) is connected to one side of the lower box (12), and a valve (71) is provided on the oil outlet pipe (7).

8. A distribution box according to claim 7, characterized in that: A second connecting member is provided between the sealing plug (8) and the oil outlet pipe (7), the second connecting member comprising a connecting rod (9), the connecting rod (9) movably passing through the oil outlet hole (62), and one end of the connecting rod (9) is threadedly connected to the oil outlet pipe (7), the sealing plug (8) is coaxially arranged on the outer wall of the connecting rod (9), the sealing plug (8) is conical, and the conical surface of the outer wall of the sealing plug (8) is in movably contact with the inner wall of the oil outlet hole (62).

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