Reduction gearbox structure for extruder with double output shafts

Abstract

The utility model relates to the technical field of extruders, in particular to a reduction gearbox structure for an extruder with double output shafts. Comprising a box body, a first gear rod arranged on the box body, a transmission gear meshed with the first gear rod, a second gear rod arranged on the transmission gear, a first output assembly and a second output assembly which are meshed with the second gear rod, and a third gear rod which is in transmission connection with the first output assembly and the second output assembly, the second gear rod and the third gear rod are arranged at intervals, a first connecting sleeve is arranged at the end, away from the transmission gear, of the second gear rod, a second connecting sleeve is arranged at the end, away from the first output assembly and the second output assembly, of the third gear rod, and the first connecting sleeve and the second connecting sleeve are both used for being connected with an external extrusion screw. The structure is compact, design is reasonable, the number of transmission components is effectively reduced, installation is convenient, occupied space is reduced, transmission reliability and transmission efficiency are improved, and the working requirement for extrusion pressure of the extrusion screw is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to extruder technical field especially relates to a double output shaft's extruder reduction gearbox structure. BACKGROUND

[0002] The extruder is a kind of industrial equipment widely used in plastic, rubber, food, metal and pharmaceutical industries, its main function is to heat, plasticize and pressurize material, make it through die or orifice to form the continuous product of specific shape, and reduction gearbox as the important component of extruder, mainly used to reduce the rotating speed of main drive motor and increase torque output, to realize the extrusion processing of plastic, rubber or food material etc.But the transmission component quantity of existing reduction gearbox is numerous and structure is complex, not only will increase the occupied space of extruder, lead to overall structure is too big and heavy, but also will affect the transmission reliability between each transmission component, also reduce transmission efficiency, to meet the extrusion pressure work demand of extrusion screw. SUMMARY

[0003] The utility model provides a double output shaft's extruder reduction gearbox structure for the shortage of prior art, compact structure and reasonable in design, effectively reduce the quantity of transmission component, it is convenient to install and reduce the occupied space, improve transmission reliability and transmission efficiency, meet the extrusion pressure work demand of extrusion screw.

[0004] To realize the above-mentioned purpose, a double output shaft's extruder reduction gearbox structure of the utility model, including the box, the first gear lever of setting in the box, the transmission gear being engaged with the first gear lever, the second gear lever of setting in the transmission gear, the first output assembly and the second output assembly being engaged with the second gear lever and the third gear lever being transmission connection with the first output assembly, the second output assembly, the transmission gear is set on the outside of the second gear lever, the second gear lever is spaced apart with the third gear lever, the first connecting sleeve is arranged at the end of the second gear lever away from the transmission gear, the second connecting sleeve is arranged at the end of the third gear lever away from the first output assembly, the second output assembly, the first connecting sleeve, the second connecting sleeve are all used to connect the extrusion screw of outside.

[0005] Preferably, the first output assembly includes the first linkage shaft, the first output gear being set on the outside of the first linkage shaft, the first coupling being arranged on the first linkage shaft, the second linkage shaft being connected with the first coupling, and the second output gear being set on the outside of the second linkage shaft, the first linkage shaft is connected with the second linkage shaft through the first coupling, so that the first output gear is engaged with the second gear lever transmission, and the second output gear is engaged with the third gear lever transmission.

[0006] Preferably, the second output assembly comprises a third linkage shaft, a third output gear sleeved outside the third linkage shaft, a second coupling provided on the third linkage shaft, a fourth linkage shaft connected with the second coupling, and a fourth output gear sleeved outside the fourth linkage shaft, the third linkage shaft is connected with the fourth linkage shaft through the second coupling, so that the third output gear is engaged with the second gear rod for transmission, and the fourth output gear is engaged with the third gear rod for transmission.

[0007] Preferably, one end of the box body is provided with a first bearing and a second bearing, the other end of the box body is provided with a third bearing, the first bearing is sleeved outside the first gear rod, the second bearing is sleeved outside the second gear rod, and the third bearing is sleeved outside the third gear rod.

[0008] Preferably, a cover body is arranged outside the box body, and connecting screws are arranged between the cover body and the box body, the second gear rod and the third gear rod protrude into the cover body.

[0009] Preferably, a protective cover is arranged on the top of the box body, assembling screws are arranged between the protective cover and the box body, and mounting screws are arranged on the bottom of the box body.

[0010] The utility model discloses the beneficial effects of compact structure and reasonable design, effectively reduce the number of transmission components, convenient installation and reduce the space occupied, improve transmission reliability and transmission efficiency, satisfy the extrusion pressure work demand of extrusion screw. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the structural schematic diagram of the utility model.

[0012] Figure 2 It is the exploded structural schematic diagram of the utility model.

[0013] Figure 3 It is Figure 2 It is the local amplification structural schematic diagram of A.

[0014] The attached drawing mark includes:

[0015] 1 - box body 11 - first bearing 12 - second bearing

[0016] 13 - third bearing 14 - cover body 15 - connecting screw

[0017] 16 - protective cover 17 - assembling screw 18 - mounting screw

[0018] 2 - first gear rod 3 - transmission gear 4 - second gear rod

[0019] 5 - first output assembly 51 - first coupling shaft 52 - first output gear

[0020] 53 - first coupling 54 - second coupling shaft 55 - second output gear

[0021] 6 - second output assembly 61 - third coupling shaft 62 - third output gear

[0022] 63 - second coupling 64 - fourth coupling shaft 65 - fourth output gear

[0023] 7 - third gear rod 8 - first connecting sleeve 9 - second connecting sleeve. DETAILED DESCRIPTION

[0024] The utility model is described in detail below in combination with the drawings.

[0025] As Figures 1 to 3 shown, the utility model discloses a speed reducer for extruder with double output shaft constructs, including box 1, set up in the first gear rod 2 of box 1, the transmission gear 3 of meshing with first gear rod 2, set up in the second gear rod 4 of transmission gear 3, the first output assembly 5 with second output assembly 6 with the first output assembly 5, second output assembly 6 transmission connection's third gear rod 7, transmission gear 3 is set on the outside of second gear rod 4, second gear rod 4 is spaced apart with third gear rod 7, the one end of second gear rod 4 is away from transmission gear 3 and is provided with first connecting sleeve 8, the one end of third gear rod 7 is away from first output assembly 5, second output assembly 6 and is provided with second connecting sleeve 9, first connecting sleeve 8, second connecting sleeve 9 are all used to connect extrusion screw of outside.

[0026] In operation, the external motor is installed on the box 1, the output end of the external motor is drivingly connected with the first gear rod 2 and drives the first gear rod 2 to rotate, the rotating first gear rod 2 is in meshing transmission with the transmission gear 3, thereby driving the second gear rod 4 connected with the transmission gear 3 to rotate, since the second gear rod 4 is in meshing connection with the first output assembly 5 and the second output assembly 6, the first output assembly 5 and the second output assembly 6 are further driven to rotate by the second gear rod 4, the rotating first output assembly 5 and the second output assembly 6 in turn jointly drive the third gear rod 7 to rotate, since the second gear rod 4 is spaced apart from the third gear rod 7, the second gear rod 4 is connected with one external extrusion screw through the first connecting sleeve 8, the third gear rod 7 is connected with another external extrusion screw through the second connecting sleeve 9, in this multi-stage transmission process, the speed and torque are subjected to multi-stage transmission and amplification, thereby providing the two external extrusion screws with stable strong extrusion pressure and greater torque and moderate speed, in addition, compared with the traditional transmission mode that the small gear directly drives the large gear, such a structure design can make the output power be shared on multiple transmission members, reduce the load of a single transmission member, and improve the working reliability and service life of the reduction box. The gear rod is an important component in a mechanical transmission device, which mainly functions to realize power transmission and control through the combination of gears and rods. According to different application scenarios and design requirements, the gear rod can use different types and can serve multiple purposes such as power transmission, gear shifting control, and precise positioning. The utility model has the advantages of compact structure and reasonable design, effectively reducing the number of transmission members, facilitating installation and reducing the occupied space, improving transmission reliability and transmission efficiency, and meeting the extrusion pressure working requirements of the extrusion screw.

[0027] The first output assembly 5 of the embodiment comprises a first linkage shaft 51, a first output gear 52 sleeved on the outer side of the first linkage shaft 51, a first coupling 53 arranged on the first linkage shaft 51, a second linkage shaft 54 connected with the first coupling 53, and a second output gear 55 sleeved on the outer side of the second linkage shaft 54. The first linkage shaft 51 is connected with the second linkage shaft 54 through the first coupling 53, so that the first output gear 52 is in meshing transmission with the second gear rod 4, and the second output gear 55 is in meshing transmission with the third gear rod 7. Specifically, the first output gear 52 is sleeved on the outer side of the first linkage shaft 51, the second output gear 55 is sleeved on the outer side of the second linkage shaft 54, the first linkage shaft 51 is connected with the second linkage shaft 54 through the first coupling 53, when the second gear rod 4 is in meshing transmission with the first output gear 52, the first linkage shaft 51 and the second linkage shaft 54 are jointly driven to rotate by the first coupling 53, and the second output gear 55 is in transmission connection with the third gear rod 7, so that the structure is compact and the transmission efficiency is high.

[0028] The second output assembly 6 of the embodiment comprises a third linkage shaft 61, a third output gear 62 sleeved outside the third linkage shaft 61, a second coupling 63 arranged on the third linkage shaft 61, a fourth linkage shaft 64 connected with the second coupling 63, and a fourth output gear 65 sleeved outside the fourth linkage shaft 64, the third linkage shaft 61 is connected with the fourth linkage shaft 64 through the second coupling 63, so that the third output gear 62 is engaged with the second gear rod 4 for transmission, and the fourth output gear 65 is engaged with the third gear rod 7 for transmission. Specifically, the third output gear 62 is sleeved outside the third linkage shaft 61, the fourth output gear 65 is sleeved outside the fourth linkage shaft 64, the third linkage shaft 61 is connected with the fourth linkage shaft 64 through the second coupling 63, when the second gear rod 4 is engaged with the third output gear 62 for transmission, thereby driving the third linkage shaft 61 and the fourth linkage shaft 64 to rotate together through the second coupling 63, and then transmitting through the fourth output gear 65 and the third gear rod 7, the structure is compact and the transmission efficiency is high, and then the first output assembly 5 and the second output assembly 6 are clamped between the second gear rod 4 and the third gear rod 7 to form a high-efficiency transmission structure, and the connection is stable and reliable.

[0029] One end of the box body 1 of the embodiment is provided with a first bearing 11 and a second bearing 12, the other end of the box body 1 is provided with a third bearing 13, the first bearing 11 is sleeved outside the first gear rod 2, the second bearing 12 is sleeved outside the second gear rod 4, and the third bearing 13 is sleeved outside the third gear rod 7. Specifically, the first bearing 11 is sleeved outside the first gear rod 2, the second bearing 12 is sleeved outside the second gear rod 4, and the third bearing 13 is sleeved outside the third gear rod 7, so that the first gear rod 2, the second gear rod 4 and the third gear rod 7 rotate stably in the box body 1, the friction resistance is reduced, and the rotation is more smooth and stable.

[0030] The outside of the box body 1 of the embodiment is provided with a cover body 14, the cover body 14 is connected with the box body 1 through a connecting screw 15, and the second gear rod 4 and the third gear rod 7 protrude into the cover body 14. Specifically, the cover body 14 is installed on the outside of the box body 1 through the connecting screw 15, and the cover body 14 covers the outside of the second gear rod 4 and the third gear rod 7 to play a protective and shielding role, so that the second gear rod 4 and the third gear rod 7 are not damaged by the external environment, and the stable operation of the second gear rod 4 and the third gear rod 7 is ensured.

[0031] The top of the box 1 of the embodiment is provided with a protective cover 16, the protective cover 16 is connected with the box 1 through assembly screws 17, the bottom of the box 1 is provided with mounting screws 18. Specifically, the protective cover 16 is connected with the box 1 through the assembly screws 17, the working conditions of the first output assembly 5 and the second output assembly 6 can be directly observed by opening the protective cover 16, which is convenient for daily maintenance and repair, and the box 1 is installed to a suitable working position through the mounting screws 18, which is simple and convenient to install.

[0032] The above is only the preferred embodiment of the present application, for those skilled in the art, according to the idea of the present application, the specific implementation and application range will be changed, the content of the specification should not be understood as the limitation of the present application.

Claims

1. A speed reduction box construction for a twin output shaft extruder, characterized by: The box, the first gear rod arranged on the box, the transmission gear meshing with the first gear rod, the second gear rod arranged on the transmission gear, the first output assembly and the second output assembly meshing with the second gear rod, and the third gear rod in transmission connection with the first output assembly and the second output assembly, the transmission gear is sleeved outside the second gear rod, the second gear rod is arranged at intervals with the third gear rod, and the first connecting sleeve is arranged at the end of the second gear rod away from the transmission gear, the second connecting sleeve is arranged at the end of the third gear rod away from the first output assembly and the second output assembly, and the first connecting sleeve and the second connecting sleeve are used for connecting the extrusion screw rod outside.

2. A reduction gearbox arrangement for a twin-output shaft extruder as claimed in claim 1, characterized in that: The first output assembly comprises a first linkage shaft, a first output gear sleeved outside the first linkage shaft, a first shaft coupling arranged on the first linkage shaft, a second linkage shaft connected with the first shaft coupling, and a second output gear sleeved outside the second linkage shaft, the first linkage shaft is connected with the second linkage shaft through the first shaft coupling, so that the first output gear is engaged with the second gear rod transmission, and the second output gear is engaged with the third gear rod transmission.

3. A reduction gearbox arrangement for a twin-output shaft extruder as claimed in claim 1, characterized in that: The second output assembly comprises a third linkage shaft, a third output gear sleeved outside the third linkage shaft, a second shaft coupling arranged on the third linkage shaft, a fourth linkage shaft connected with the second shaft coupling, and a fourth output gear sleeved outside the fourth linkage shaft, the third linkage shaft is connected with the fourth linkage shaft through the second shaft coupling, so that the third output gear is engaged with the second gear rod transmission, and the fourth output gear is engaged with the third gear rod transmission.

4. A reduction gearbox arrangement for a twin-output shaft extruder as claimed in claim 1, characterized in that: One end of the box is provided with a first bearing and a second bearing, the other end of the box is provided with a third bearing, the first bearing is sleeved outside the first gear rod, the second bearing is sleeved outside the second gear rod, and the third bearing is sleeved outside the third gear rod.

5. A reduction gearbox arrangement for a twin-output shaft extruder as claimed in claim 1, characterized in that: The outer side of the box is provided with a cover, the cover and the box are connected with connecting screws, the second gear rod and the third gear rod protrude into the cover.

6. A reduction gearbox arrangement for a twin-output shaft extruder as claimed in claim 1, characterized in that: The top of the box is provided with a protective cover, the protective cover and the box are connected with assembly screws, and the bottom of the box is provided with mounting screws.

Images