Enveloping type integrated speed reducer

Abstract

The utility model provides an enveloping type integrated speed reducer, and belongs to the technical field of speed reducers. Comprising a box body, first-stage speed reduction transmission and second-stage speed reduction transmission are arranged in the box body, the first-stage speed reduction transmission is used for preliminary speed reduction and torque increase, and the second-stage speed reduction transmission is used for increasing the reduction ratio and torque output; the small gear is stably installed in the box body, the small gear is located in the first-stage speed reduction transmission, and the small gear is used for being externally connected with input power; the large gear is stably installed in the box body, the large gear is located in the first-stage speed reduction transmission, and the large gear is meshed with the small gear. Through the cooperation of the two-stage speed reduction transmission structures in the box body, the purposes of large torque and large speed ratio are achieved, and meanwhile due to the fact that the worm and the turbine shaft form a staggered shaft structure in the box body and the reasonable internal space design of the box body, the purpose of adapting to complex space layout is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of speed reducer, especially relates to a enveloping type integrated speed reducer. BACKGROUND

[0002] The enveloping type integrated speed reducer is widely used in the industrial automation field as a new type of transmission device, and its compact design, high transmission efficiency and precise position control capability make it one of the indispensable core components of precision machinery. With the advent of the industrial 4.0 era, higher requirements are put forward for the precision, efficiency and integration of transmission devices, and the enveloping type integrated speed reducer has shown broad application prospects in many industries due to its unique advantages.

[0003] However, the existing traditional speed reducer is difficult to simultaneously consider the requirements of large torque and large speed ratio due to the single reduction stage design. This design limitation means that in applications where high torque output is required while achieving a larger reduction ratio, the traditional speed reducer often cannot achieve ideal performance. Specifically, the single reduction stage design is difficult to ensure sufficient reduction ratio while improving torque output, and vice versa. This defect limits the applicability of the traditional speed reducer in application scenarios requiring both high torque and high reduction ratio. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide an enveloping type integrated speed reducer to solve the technical problems that the traditional speed reducer is difficult to simultaneously consider the requirements of large torque and large speed ratio, and the traditional speed reducer is difficult to adapt to complex spatial layout and realize staggered shaft structure.

[0005] Technical solution: To achieve the above object, the utility model discloses an envelope type integrated speed reducer, which comprises a box body, a first-stage speed reduction transmission and a second-stage speed reduction transmission are arranged in the box body, the first-stage speed reduction transmission is used for preliminary speed reduction and torque increase, and the second-stage speed reduction transmission is used for increasing the speed reduction ratio and torque output; a pinion is stably installed in the box body, the pinion is in the first-stage speed reduction transmission, and the pinion is used for external connection power input; a bull gear is stably installed in the box body, the bull gear is in the first-stage speed reduction transmission, and the bull gear is engaged with the pinion; a worm is rotatably connected to one end of the box body and engaged with the bull gear at the other end, and the worm is in the second-stage speed reduction transmission; a turbine shaft is stably installed in the box body, the turbine shaft is engaged with the worm, and the turbine shaft is in the second-stage speed reduction transmission, wherein the material of the box body should have sufficient strength and rigidity to withstand the force of the internal transmission components; the transmission ratio of the two-stage speed reduction transmission should be reasonably designed according to actual requirements, for example, the transmission ratio of the first-stage speed reduction transmission can be between 2 and 5, and the transmission ratio of the second-stage speed reduction transmission can be between 5 and 20; the modulus and the number of teeth of the pinion and the bull gear should be accurately calculated according to the transmission ratio and the torque requirement, for example, the modulus of the pinion can be between 2 and 4, and the number of teeth can be between 15 and 30; the modulus of the bull gear is the same as that of the pinion, and the number of teeth is between 30 and 60.

[0006] In a further embodiment, a hub is stably installed on the turbine shaft; a plurality of rollers are arranged in a ring shape and are stably connected to the wheel, and the rollers are used to contact the worm and transmit power, wherein the connection mode of the hub and the turbine shaft should ensure sufficient strength and stability, for example, interference fit or key connection can be used; the number of rollers can be between 6 and 12, the diameter of the rollers should be reasonably designed according to the size of the turbine shaft and the size of the worm, and is generally between 5 and 15 mm; the connection between the rollers and the hub should be tight to prevent loosening during operation.

[0007] In a further embodiment, a plurality of bearings are stably connected to the worm and the turbine shaft, respectively, and the bearings are used to support the worm and the turbine shaft to ensure their stability during rotation and reduce friction loss, wherein the type of bearing can be selected according to the stress condition and the speed requirement of the worm and the turbine shaft, for example, deep groove ball bearing or tapered roller bearing can be used; the size of the bearing should match the shaft diameter of the worm and the turbine shaft, and the correct installation direction and pre-tightening force should be ensured during installation, and the pre-tightening force is generally between 5 and 20 N.

[0008] In a further embodiment, an oil seal is stably installed in the box, and the oil seal is used to seal the box to prevent leakage of lubricating oil, wherein the material of the oil seal should have good sealing performance and wear resistance, for example, materials such as rubber or fluororubber can be used; the size of the oil seal should match the installation position of the box, and the correct installation position and direction of the oil seal should be ensured during installation, and appropriate installation pressure should be applied, and the installation pressure is generally between 2-5N.

[0009] In a further embodiment, the distribution of the worm and the turbine shaft in the box forms an interlaced shaft structure, wherein the interlacing angle of the worm and the turbine shaft can be between 30°-90°, and the specific angle should be designed according to the actual application requirements and the internal space layout of the box; when designing the interlaced shaft structure, the center distance of the worm and the turbine shaft and the meshing conditions of the two should be considered to ensure smooth power transmission.

[0010] In a further embodiment, an oil seal end cover is stably installed in the box, and the oil seal end cover is used to fix the oil seal to ensure the sealing effect of the oil seal, wherein the material of the oil seal end cover can be selected from metal or plastic, and the size of the oil seal end cover should match the installation position of the oil seal and the box; the connection between the oil seal end cover and the box can be achieved by bolt connection or welding to ensure the firmness of the connection.

[0011] In a further embodiment, the roller is adapted to the worm, wherein the adaptation ratio of the diameter of the roller to the distance between the adjacent two heads of the worm is preferably between 0.4-0.8; at the same time, the shape of the roller can be designed as a cylindrical shape, and the material of the roller can be selected from high-carbon steel, alloy steel or ceramic, which has good wear resistance and hardness, and the hardness should be higher than the hardness of the worm by 5-10HRC to reduce the wear of the roller itself.

[0012] Beneficial effects: 1. Through the cooperation of the two-stage reduction transmission structure in the box, that is, the meshing of the first-stage pinion and the gear and the meshing of the second-stage worm and the turbine shaft, the purpose of considering both large torque and large speed ratio is achieved; in the first-stage reduction transmission, the pinion is connected with the input power and meshes with the gear to preliminarily reduce the speed and increase the torque; in the second-stage reduction transmission, one end of the worm is rotatably connected with the box and is connected with the gear, and the turbine shaft is connected with the worm to further increase the speed reduction ratio and the torque output; this two-stage transmission design enables the torque and speed ratio to be gradually adjusted under the condition of inputting a certain power, achieving the effect of meeting different working requirements, that is, providing sufficient power when large torque output is required, and achieving precise speed reduction when large speed ratio is required.

[0013] 2. By forming a staggered shaft structure of the worm and the turbine shaft in the box, and the reasonable internal space design of the box, the purpose of adapting to complex spatial layout is realized; the staggered shaft structure of the worm and the turbine shaft makes the speed reducer more flexible in space, not limited to the traditional coaxial layout; at the same time, the box provides a suitable mounting space for the internal transmission components, and components such as bearings support the worm and the turbine shaft, and oil seals are used for sealing the box, so that the entire structure can stably run under complex spatial layout, and the effect that flexible arrangement can be achieved according to different installation environments and application requirements is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0015] Figure 1 It is a structural schematic diagram of the present application.

[0016] Figure 2 It is Figure 1 the right view.

[0017] Figure 3 It is a structural schematic diagram of the worm.

[0018] Figure 4 It is a structural schematic diagram of the turbine shaft.

[0019] The reference signs in the drawings are: 1, the box; 2, the pinion; 3, the gear; 4, the worm; 5, the turbine shaft; 501, the hub; 502, the roller; 6, the oil seal; 7, the bearing. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the present application more clear, the technical scheme in the present application is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0021] The present application provides an envelope type integrated speed reducer, which solves the technical problems that the traditional speed reducer is difficult to simultaneously consider large torque and large speed ratio, and the traditional speed reducer is difficult to adapt to complex spatial layout and realize staggered shaft structure. In actual use, the purposes of efficient transmission and flexible layout are realized.

[0022] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the drawings and specific embodiments of the specification.

[0023] Referring to Figures 1-4 An envelope type integrated reducer comprises a box body 1, a first stage reduction transmission and a second stage reduction transmission are arranged in the box body 1, the first stage reduction transmission is used for preliminary reduction and torque increase, and the second stage reduction transmission is used for increasing the reduction ratio and the torque output; a pinion 2 is stably installed in the box body 1, the pinion 2 is in the first stage reduction transmission, and the pinion 2 is used for externally connecting the input power; a gear 3 is stably installed in the box body 1, the gear 3 is in the first stage reduction transmission, and the gear 3 is engaged with the pinion 2; a worm 4 is rotatably connected to the box body 1 at one end and engaged with the gear 3 at the other end, and the worm 4 is in the second stage reduction transmission; and a turbine shaft 5 is stably installed in the box body 1, the turbine shaft 5 is engaged with the worm 4, and the turbine shaft 5 is in the second stage reduction transmission.

[0024] Through cooperation of the box body 1, the pinion 2, the gear 3, the worm 4 and the turbine shaft 5, the box body 1 provides space for two-stage reduction transmission, the pinion 2 externally connects the input power and is engaged with the gear 3 to achieve first-stage preliminary reduction and torque increase, the worm 4 is rotatably connected to the box body 1 at one end and engaged with the gear 3 and the turbine shaft 5 respectively to achieve second-stage increase of the reduction ratio and the torque output, thereby achieving efficient two-stage reduction transmission effect.

[0025] A hub 501 is stably installed on the turbine shaft 5; a plurality of rollers 502 are arranged in a ring shape and stably connected to wheels, and the rollers 502 are used for contacting the worm 4 and transmitting power.

[0026] Through stable installation and cooperation of the hub 501 and the turbine shaft 5 and stable connection and ring-shaped arrangement of the rollers 502 and the hub 501, the rollers 502 are uniformly distributed on the turbine shaft 5, thereby better transmitting power when contacting the worm 4.

[0027] A plurality of bearings 7 are stably connected to the worm 4 and the turbine shaft 5 respectively, and the bearings 7 are used for supporting the worm 4 and the turbine shaft 5 to ensure stability and reduce friction loss in the rotation process.

[0028] Through stable connection of the plurality of bearings 7 to the worm 4 and the turbine shaft 5 respectively, effective support of the worm 4 and the turbine shaft 5 is achieved, stability in the rotation process is ensured, and friction loss is reduced.

[0029] An oil seal 6 is stably installed in the box body 1, and the oil seal 6 is used for sealing the box body 1 to prevent leakage of lubricating oil.

[0030] The sealing of the box 1 is achieved by the stable installation of the oil seal 6 in the box 1, and the effect of preventing lubricating oil leakage is achieved.

[0031] The distribution of the worm 4 and the turbine shaft 5 in the box 1 forms a staggered shaft structure.

[0032] The specific distribution of the worm 4 and the turbine shaft 5 in the box 1 forms a staggered shaft structure, which makes the reducer more flexible in spatial layout.

[0033] The oil seal 6 end cover is stably installed in the box 1, and is used to fix the oil seal 6 to ensure the sealing effect of the oil seal 6.

[0034] The oil seal 6 end cover in the box 1 cooperates with the oil seal 6 to fix the oil seal 6 and ensure the sealing effect of the oil seal 6.

[0035] The roller 502 is adapted to the worm 4.

[0036] The roller 502 is adapted to the worm 4 in size, shape and material, etc., which realizes good contact between the roller 502 and the worm 4, improves the power transmission efficiency, and reduces wear.

[0037] In use, first, the external power input pinion 2 drives the large gear 3 engaged therewith to perform first-stage speed reduction and torque increase; then, the power is transmitted from the large gear 3 to the worm 4, which is rotationally connected to the box 1 and transmits power to the turbine shaft 5 through the roller 502 and the hub 501, which is the second-stage speed reduction transmission, further increasing the speed reduction ratio and torque output; during the entire transmission process, multiple bearings 7 support the worm 4 and the turbine shaft 5 respectively to ensure smooth rotation and reduce friction loss, the oil seal 6 seals the box 1 to prevent lubricating oil leakage, and the worm 4 and the turbine shaft 5 form a staggered shaft structure in the box 1 to adapt to complex spatial layout.

[0038] The oil inlet, driving device and protection device required in the above description are all prior art and are not necessary technical features in this application, so they are not described and drawn in the documents and drawings of this application. The data mentioned in the above description are all example data, which have reference value but are not absolute standards and fixed values, and the actual data should be selected according to actual production needs and working environment. The graphics shown in the drawings are example graphics, and the purpose is only to more intuitively show the key structure and connection relationship of the envelope type integrated reducer. In actual application, the appearance and size of the device can be adjusted and optimized according to specific needs.

[0039] The utility model covers any alternative, modification, equivalent method and scheme which are made on the essence and range of the utility model. In order to make the public have the thorough understanding of the utility model, the specific details are explained in the above preferred embodiment of the utility model, and the utility model can also be completely understood without the description of these details for the person skilled in the art. In addition, in order to avoid unnecessary confusion to the essence of the utility model, the well-known method, process, flow, element and circuit etc. are not explained in detail.

[0040] The above is only the preferred embodiment of the utility model, and it should be pointed out that, for the ordinary skilled person in the art, a number of improvements and refinements can be made without departing from the principle of the utility model, and these improvements and refinements should also be regarded as the protection range of the utility model.

Claims

1. An enveloping integrated reduction gear, characterized in that, It comprises: a box (1) provided with a first-stage reduction transmission and a second-stage reduction transmission, the first-stage reduction transmission is used for preliminary speed reduction and torque increase, and the second-stage reduction transmission is used for increasing the reduction ratio and the torque output; a pinion (2) stably installed in the box (1), the pinion (2) is in the first-stage reduction transmission, and the pinion (2) is used for externally connecting the input power; a large gear (3) stably installed in the box (1), the large gear (3) is in the first-stage reduction transmission, and the large gear (3) is engaged with the pinion (2); a worm (4) rotatably connected to the box (1) at one end and engaged with the large gear (3) at the other end, the worm (4) is in the second-stage reduction transmission; a turbine shaft (5) stably installed in the box (1), the turbine shaft (5) is engaged with the worm (4), and the turbine shaft (5) is in the second-stage reduction transmission.

2. An enveloping integrated reduction gear according to claim 1, characterized in that It further comprises: a hub (501) stably installed on the turbine shaft (5); a plurality of rollers (502) arranged in a ring shape, the rollers (502) are stably connected with the wheel, and the rollers (502) are used for contacting the worm (4) and transmitting power.

3. An enveloping integrated speed reducer according to claim 1, characterized in that, It further comprises: a plurality of bearings (7) stably connected to the worm (4) and the turbine shaft (5), respectively, the bearings (7) are used for supporting the worm (4) and the turbine shaft (5) to ensure the stability thereof during rotation and reduce friction loss.

4. An enveloping integrated speed reducer according to claim 1, characterized in that, It further comprises: an oil seal (6) stably installed in the box (1), and the oil seal (6) is used for sealing the box (1) to prevent leakage of lubricating oil.

5. An enveloping integrated speed reducer according to claim 1, characterized in that: The distribution of the worm (4) and the turbine shaft (5) in the box (1) forms a staggered shaft structure.

6. An enveloping integrated speed reducer according to claim 4, characterized in that: The box (1) is stably provided with an oil seal (6) end cover for fixing the oil seal (6) to ensure the sealing effect of the oil seal (6).

7. An enveloping integrated speed reducer according to claim 2, characterized in that: The rollers (502) are adapted to the worm (4).

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