Turbine worm and planetary gear combined speed reducing and changing structure

Abstract

The utility model discloses a worm and gear and planetary gear combined speed reduction and change structure in the technical field of mechanical transmission, which comprises a planetary gear mechanism, a worm and gear mechanism, an upper cover and a lower cover, the planetary gear mechanism is arranged in a cavity of the upper cover and a cavity of the lower cover, and the planetary gear mechanism comprises a rotating sleeve and a gear ring. A rotary sleeve is arranged in a cavity of the upper cover, a conical bearing sleeves the outer wall of the rotary sleeve, the rotary sleeve can rotate relative to the conical bearing, the conical bearing is fixedly installed through an elastic check ring, a fixed shaft is installed on the rotary sleeve in a penetrating mode, the fixed shaft is fixedly installed through an inner hexagon screw, and a planet wheel sleeves the outer wall of the shaft diameter of the bottom of the fixed shaft. The modular design is adopted, so that maintenance is easy and convenient, a planetary gear mechanism and a worm and gear mechanism are designed into relatively independent modules, the modules can be independently disassembled and checked when the device breaks down in daily use, the difficulty of diagnosis and maintenance of maintenance personnel when the device breaks down is lowered, and daily maintenance is easy and convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical drive technical field, concretely is a kind of turbine worm and planetary gear combination speed reduction variable speed structure. BACKGROUND

[0002] With the increasing demand of industrial production to transmission device, single turbine worm or planetary gear speed reduction device has been difficult to meet the complex working condition demand.People begin to study the advantages of turbine worm and planetary gear combination, thereby developing combination speed reduction device.The performance and reliability of the structure of combination speed reduction device have been greatly improved high reduction ratio, compact structure, high carrying capacity, transmission stable.

[0003] The combination of two transmission modes can realize larger transmission ratio in relatively small space, make the overall structure of equipment more compact, save installation space, planetary gear transmission has the characteristics of multiple planetary gears sharing load, and has higher carrying capacity;Turbine worm transmission can also withstand larger torque.After combination, the carrying capacity of the device is further improved, and it can be used for transmitting large power, turbine worm transmission and planetary gear transmission both have the characteristics of stable transmission, and the combination speed reduction device can reduce vibration and noise during operation, improve transmission comfort and stability.

[0004] Due to the relatively complex structure of the combination device, higher technical requirements and more time are needed during installation.Furthermore, once failure occurs, diagnosis and maintenance are difficult, and part of the special components need to be maintained by professional personnel using special tools, so the maintenance cost is high, which indirectly leads to complex installation and routine maintenance and repair.

[0005] Based on this, the utility model discloses a kind of turbine worm and planetary gear combination speed reduction variable speed structure to solve the above problems. INVENTION CONTENTS

[0006] The utility model aims at providing a kind of turbine worm and planetary gear combination speed reduction variable speed structure to solve the above background technique and propose the relatively complex structure of this combination device, which leads to higher technical requirements and more time during installation.Furthermore, once failure occurs, diagnosis and maintenance are difficult, and part of the special components need to be maintained by professional personnel using special tools, so the maintenance cost is high, which indirectly leads to complex installation and routine maintenance and repair problem.

[0007] In order to achieve the above object, the utility model provides the following technical scheme: a turbine worm and planetary gear combined reduction variable speed structure, including planetary gear mechanism, worm gear mechanism, upper cover and lower cover, the upper cover and lower cover chamber inside is provided with planetary gear mechanism, the planetary gear mechanism includes rotating sleeve and gear ring, the upper cover chamber inside is equipped with rotating sleeve, the rotating sleeve outer wall is equipped with tapered bearing, the rotating sleeve relative tapered bearing can rotate, the tapered bearing is fixedly installed through elastic baffle, the rotating sleeve penetrates and is installed fixed shaft, the fixed shaft is fixedly installed through internal hexagon screw, the fixed shaft bottom axle diameter outer wall is equipped with planetary gear, the planetary gear is movably installed on the fixed shaft through the shaft baffle.

[0008] Preferably, the rotating sleeve left side fixed installation has output planet carrier, the output planet carrier outer wall is equipped with planetary seal ring, the rotating sleeve chamber inside is equipped with angle joint small bearing, the angle joint small bearing right side is equipped with pad, the angle joint small bearing inside is equipped with transmission spline shaft, the transmission spline shaft is rotatable, the transmission spline shaft middle part outer wall axle diameter is equipped with rectangular groove, the rectangular groove inside is equipped with flat key, the flat key outer wall is equipped with sun gear, the sun gear is connected with transmission spline shaft key, the sun gear is engaged with planetary gear.

[0009] Preferably, the upper cover left side chamber is fixedly installed with gear ring through internal hexagon screw, the planetary gear is engaged with gear ring, the upper cover chamber is equipped with tapered bearing, the tapered bearing inside is equipped with baffle, the baffle left end chamber is equipped with angle joint big bearing, the angle joint big bearing right end is equipped with transmission seal ring, the baffle outer wall axle diameter is equipped with rear baffle seal ring, the baffle right end is equipped with elastic baffle, the upper cover is fixedly connected with lower cover through outer ring bolt.

[0010] Preferably, the transmission spline shaft bottom outer wall is equipped with spline groove, the spline groove outer wall is connected with worm gear mechanism.

[0011] Preferably, the worm gear mechanism includes shell, worm shaft, slot worm and double-end worm, the shell middle part chamber inside is equipped with worm shaft, the worm shaft outer wall is equipped with slot worm, the worm shaft chamber is equipped with transmission spline shaft, the slot worm is fixedly installed on the worm shaft through internal hexagon screw, the shell outer wall left and right sides are equipped with end cover gasket, the worm shaft axle diameter outer wall left and right sides are equipped with angle joint small bearing, the angle joint small bearing outer wall is equipped with worm end cover, the worm end cover is fixedly installed on the shell through internal hexagon screw, the worm end cover chamber inside is equipped with skeleton oil seal.

[0012] Preferably, a double-end worm is arranged inside the bottom chamber of the shell, the double-end worm is in meshing connection with the groove worm wheel, the double-end worm is sleeved with deep groove bearings on the left and right sides of the shaft diameter, the deep groove bearings are arranged with worm end covers on the left and right sides, the worm end covers are fixedly installed on the shell through the inner hexagonal screws, and the worm end cover cavities are sleeved with worm oil seals.

[0013] Preferably, a grease nipple is fixedly installed on the top of the shell, and the grease nipple is detachable.

[0014] Compared with the prior art, the device has the beneficial effects that:

[0015] Firstly, the planetary gear mechanism and the worm gear mechanism are designed in a modular manner, so that the maintenance is simple and convenient, the planetary gear mechanism and the worm gear mechanism are designed as relatively independent modules, so that when a fault is found, the problem can be located by checking the modules one by one, so that when a fault occurs in daily use, the part can be individually disassembled and checked, without disassembling and repairing the entire mechanical device, the use of special tools is reduced in the aspect of maintenance and assembly, bolt connection, key connection, spline connection and check ring limiting are adopted, and the bolt specifications are unified according to the national standard, so that the maintenance personnel can perform maintenance operation by using conventional tools during disassembly and installation, and in order to realize long-term use of the device, the sealing element used at the input and output shafts is adopted to prevent dust, water and other impurities from entering the inside of the device, so that during daily maintenance, the sealing element can be checked regularly to effectively avoid the fault caused by the entry of impurities.

[0016] Secondly, the worm gear mechanism is used as a primary speed reduction unit, the transmission ratio is used to preliminarily reduce the input rotation speed, and the worm gear mechanism has self-locking property, so that the output shaft can be prevented from being reversed under specific conditions. Due to the structural characteristics of the worm gear, the worm gear is prone to wear during work, in order to reduce the wear, a grease filling hole is designed on the top of the shell, and the lubrication of the inside of the device is ensured by filling grease, so that the wear of the parts is reduced, the maintenance frequency is reduced, and the service life is increased. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating any creative labor.

[0018] Figure 1 The present application is an explosion angle structure schematic diagram.

[0019] Figure 2 is a schematic diagram of the axial view angle structure of the utility model;

[0020] Figure 3 is a schematic diagram of the full-section view structure of the planetary mechanism of the utility model;

[0021] Figure 4 is a schematic diagram of the rotating sleeve structure of the utility model;

[0022] Figure 5 is a schematic diagram of the half-section structure of the planetary mechanism of the utility model;

[0023] Figure 6 is a schematic diagram of the full-section structure of the worm gear from the left view angle of the utility model;

[0024] Figure 7 is a schematic diagram of the full-section structure of the worm gear from the top view angle of the utility model.

[0025] In the drawings, the components represented by each reference numeral are listed as follows:

[0026] 1, upper cover; 2, output planet carrier; 3, planet sealing ring; 4, conical bearing; 5, rotating sleeve; 6, fixed shaft; 7, inner hexagonal screw; 8, angular contact small bearing; 9, transmission spline shaft; 10, lower cover; 11, planet wheel; 12, sun gear; 13, ring gear; 14, elastic baffle ring; 15, baffle; 16, outer ring bolt; 17, rear baffle sealing ring; 18, transmission sealing ring; 19, cushion block; 20, angular contact large bearing; 21, housing; 22, grooved worm wheel; 23, double-end worm; 24, grease nipple; 25, worm wheel end cover; 26, worm end cover; 27, worm shaft; 28, skeleton oil seal; 29, worm oil seal; 30, spline groove; 31, rectangular groove; 32, flat key; 33, end cover gasket; 35, deep groove bearing; 36, shaft baffle; 101, planetary gear mechanism; 201, worm gear mechanism. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings 1-5 in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0028] Embodiment 1

[0029] Please refer to the drawings, the utility model provides a technical scheme: a worm and planetary gear combination deceleration variable speed structure, including planetary gear mechanism 101, worm gear mechanism 201, upper cover 1 and lower cover 10, upper cover 1 and lower cover 10 chamber inside be provided with planetary gear mechanism 101, planetary gear mechanism 101 includes rotary sleeve 5 and gear ring 13, upper cover 1 chamber inside is equipped with rotary sleeve 5, rotary sleeve 5 outer wall is equipped with conical bearing 4, rotary sleeve 5 relative conical bearing 4 rotatable, conical bearing 4 is fixedly installed through elastic baffle 14, rotary sleeve 5 is installed with fixed shaft 6, fixed shaft 6 is fixedly installed through internal hexagon screw 7, fixed shaft 6 bottom axle diameter outer wall is equipped with planetary gear 11, planetary gear 11 is movably installed on fixed shaft 6 through shaft baffle 36;

[0030] Rotary sleeve 5 left side fixed mounting has output planet carrier 2, output planet carrier 2 outer wall is equipped with planetary seal ring 3, rotary sleeve 5 chamber inside is equipped with angle joint small bearing 8, angle joint small bearing 8 right side is equipped with pad 19, angle joint small bearing 8 inside is equipped with transmission spline shaft 9, transmission spline shaft 9 rotatable, transmission spline shaft 9 middle part outer wall axle diameter is set up rectangular slot 31, rectangular slot 31 inside is equipped with flat key 32, flat key 32 outer wall is equipped with sun gear 12, sun gear 12 is connected with transmission spline shaft 9, sun gear 12 is engaged with planetary gear 11;

[0031] Upper cover 1 left side chamber inside is fixedly installed with gear ring 13 through internal hexagon screw 7, planetary gear 11 and gear ring 13 are engaged with each other, upper cover 1 chamber inside is equipped with conical bearing 4, conical bearing 4 inside is equipped with baffle 15, baffle 15 left end chamber inside is equipped with angle joint large bearing 20, angle joint large bearing 20 right end is equipped with transmission seal ring 18, baffle 15 outer wall axle diameter is equipped with rear baffle seal ring 17, baffle 15 right end is equipped with elastic baffle 14, upper cover 1 is fixedly connected with lower cover 10 through outer ring bolt 16, transmission spline shaft 9 bottom outer wall is set up spline groove 30, spline groove 30 outer wall is connected with worm gear mechanism 201.

[0032] Worm gear mechanism 201 includes shell 21, worm shaft 27, slot worm wheel 22 and double-end worm 23, shell 21 middle part chamber inside is equipped with worm shaft 27, worm shaft 27 outer wall is equipped with slot worm wheel 22, the worm shaft 27 chamber is equipped with transmission spline shaft 9, slot worm wheel 22 is fixedly installed on worm shaft 27 through internal hexagon screw 7, both sides of shell 21 outer wall are equipped with end cover gasket 33, both sides of worm shaft 27 axle diameter outer wall are equipped with angle joint small bearing 8, angle joint small bearing 8 outer wall is equipped with worm end cover 25, worm end cover 25 is fixedly installed on shell 21 through internal hexagon screw 7, worm end cover 25 chamber inside is equipped with skeleton oil seal 28;

[0033] The double-end worm 23 is arranged in the bottom chamber of the shell 21, and is in meshing connection with the groove worm wheel 22.

[0034] The grease nipple 24 is fixedly installed on the top of the shell 21.

[0035] One specific application of the embodiment is that the driving motor is in key connection with the double-end worm 23, power is transmitted to the groove worm wheel 22 in meshing connection with the double-end worm 23 through the double-end worm 23 to drive the groove worm wheel 22 to rotate, the groove worm wheel 22 is fixedly connected with the worm shaft 27 to rotate together, the worm and gear mechanism 201 is connected and driven by the transmission spline shaft 9, the transmission spline shaft 9 connected with the worm and gear mechanism 201 rotates, the sun gear 12 connected with the transmission spline shaft 9 through the parallel key 32 rotates to drive the planetary gear 11 in meshing connection with the sun gear 12 to rotate, the rotating sleeve 5 on which the planetary gear 11 is arranged rotates to transmit power to the output planet carrier 2, so that the combined multi-stage speed change, torque change and other transmission effects are realized, the planetary gear mechanism 101 and the worm and gear mechanism 201 are designed as relatively independent modules, so that the modules are checked one by one to locate the problem when a fault is found, the part can be individually disassembled and checked when a fault occurs in daily use, the whole mechanical device does not need to be disassembled and repaired, the use of special tools is reduced, the connection modes of bolt connection, key connection, spline connection and check ring limiting are easy to disassemble, and the bolt specifications are unified national standards, so that the maintenance personnel can maintain the device with conventional tools when disassembling and installing, in order to realize long-term use of the device, the sealing elements used at the input and output shafts are used to prevent dust, water and other impurities from entering the device, so that the fault caused by the impurities entering the device can be effectively avoided by checking the sealing elements regularly, the structure of the worm and gear mechanism 201 is easy to wear during work, the grease nipple 24 is arranged on the top of the shell 21 to add grease, the grease lubrication ensures the lubrication of the inside of the shell 21, reduces the wear of the parts, reduces the maintenance frequency, and increases the service life.

[0036] In the description of the specification, the description of the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] The preferred embodiments of the utility model disclosed above are only used for helping to explain the utility model. The preferred embodiments do not describe all the details exhaustively, and also do not limit the utility model to only the specific implementation manners described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited only by the claims and the entire scope and equivalents thereof.

Claims

1. A turbine worm and planetary gear combination reduction transmission structure, comprising a planetary gear mechanism (101), a worm gear mechanism (201), an upper cover (1) and a lower cover (10), characterized in that: The upper cover (1) and the lower cover (10) are provided with a planetary gear mechanism (101) inside the chamber, the planetary gear mechanism (101) comprises a rotating sleeve (5) and a gear ring (13), the rotating sleeve (5) is arranged inside the chamber of the upper cover (1), the outer wall of the rotating sleeve (5) is sleeved with a tapered bearing (4), the rotating sleeve (5) is rotatable relative to the tapered bearing (4), the tapered bearing (4) is fixedly installed through an elastic retainer (14), the rotating sleeve (5) is penetrated and installed with a fixed shaft (6), the fixed shaft (6) is fixedly installed through an internal hexagonal screw (7), the outer wall of the bottom shaft diameter of the fixed shaft (6) is sleeved with a planetary gear (11), the planetary gear (11) is movably installed on the fixed shaft (6) through an axle retainer (36).

2. A combination worm-turbine and planetary gear reduction structure according to claim 1, characterized in that: The left side of the rotating sleeve (5) is fixedly installed with an output planet carrier (2), the outer wall of the output planet carrier (2) is sleeved with a planetary seal ring (3), the chamber of the rotating sleeve (5) is sleeved with an angular contact small bearing (8), the right side of the angular contact small bearing (8) is arranged with a pad (19), the inside of the angular contact small bearing (8) is sleeved with a transmission spline shaft (9), the transmission spline shaft (9) is rotatable, the outer wall of the middle part of the transmission spline shaft (9) is provided with a rectangular groove (31) in the shaft diameter, the inside of the rectangular groove (31) is arranged with a flat key (32), the outer wall of the flat key (32) is sleeved with a sun gear (12), the sun gear (12) is connected with the transmission spline shaft (9) by a key, and the sun gear (12) is engaged with the planetary gear (11).

3. A combination worm-turbine and planetary gear reduction structure according to claim 2, characterized in that: The left side of the upper cover (1) is fixedly installed with a gear ring (13) in the chamber through an internal hexagonal screw (7), the planetary gear (11) is engaged with the gear ring (13), the chamber of the upper cover (1) is sleeved with a tapered bearing (4), the inside of the tapered bearing (4) is arranged with a baffle (15), the left end of the chamber of the baffle (15) is sleeved with an angular contact large bearing (20), the right end of the angular contact large bearing (20) is arranged with a transmission seal ring (18), the outer wall of the baffle (15) is sleeved with a rear blocking seal ring (17), the right end of the baffle (15) is arranged with an elastic retainer (14), and the upper cover (1) and the lower cover (10) are fixedly connected through an outer ring bolt (16).

4. A combination worm-turbine and planetary gear reduction structure according to claim 3, characterized in that: The bottom outer wall of the transmission spline shaft (9) is provided with a spline groove (30), and the spline groove (30) is connected with a worm gear mechanism (201).

5. A combination worm and planetary gear reduction structure according to claim 4, wherein: The worm gear mechanism (201) includes a shell (21), a worm shaft (27), a groove worm (22) and a double-end worm (23), the worm shaft (27) is arranged in the middle chamber of the shell (21), the transmission spline shaft (9) is arranged in the chamber of the worm shaft (27), the groove worm (22) is sleeved on the outer wall of the worm shaft (27), the groove worm (22) is fixedly installed on the worm shaft (27) through the hexagon socket screw (7), the end cover gasket (33) is arranged on the left and right sides of the outer wall of the shell (21), the angular contact small bearing (8) is sleeved on the left and right sides of the outer wall of the shaft diameter of the worm shaft (27), the worm end cover (25) is sleeved on the outer wall of the angular contact small bearing (8), the worm end cover (25) is fixedly installed on the shell (21) through the hexagon socket screw (7), and the skeleton oil seal (28) is arranged in the chamber of the worm end cover (25).

6. A turbine worm and planetary gear combination reduction transmission structure according to claim 5, characterized in that: The double-end worm (23) is arranged in the bottom chamber of the shell (21), the double-end worm (23) is meshed with the groove worm (22), the deep groove bearing (35) is sleeved on the left and right sides of the shaft diameter of the double-end worm (23), the worm end cover (26) is arranged on the left and right sides of the deep groove bearing (35), the worm end cover (26) is fixedly installed on the shell (21) through the hexagon socket screw (7), and the worm end cover (26) is sleeved with the worm oil seal (29) in the chamber.

7. A turbine worm and planetary gear combination reduction transmission structure according to claim 6, characterized in that: The grease nipple (24) is fixedly installed on the top of the shell (21), and the grease nipple (24) is detachable.

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