CN204900693U - Improved reducer - Google Patents

Abstract

The utility model discloses an improvement type speed reducer, it includes: a quick-witted case, install input shaft and output shaft on quick-witted case and install the speed reduction drive mechanism in the quick-witted case, speed reduction drive mechanism includes: the worm wheel is installed in the case, the worm wheel is connected with the worm wheel and is used for driving the worm wheel to rotate, the main driving shaft is used for driving the worm rotating shaft, the output shaft is arranged on the worm wheel, the input shaft is linked with the main driving shaft, and the input shaft and the output shaft are vertically distributed. The utility model discloses the during operation is earlier through the input shaft connecting motor, and this motor drive input shaft rotates, and this input shaft rotates through little double gear drive main drive axle, and this main drive axle makes the worm rotate through the vice helical gear rotation of main helical gear drive, and this worm rotates through helical gear drive worm wheel in the pivoted, and worm wheel drive the output shaft rotates, finally plays the effect of good matching rotational speed and transmission torque, and the driven stability preferred of whole process.

Description

Improved reducer

Technical field:

The utility model relates to the technical field of reducers, in particular to an improved reducer.

Background technique:

The reducer is a kind of transmission, which is generally used for low-speed and high-torque transmission equipment. The principle is to use the electric motor, internal combustion engine, motor or other high-speed running power to mesh the gear with a small number of teeth on the input shaft of the reducer with the gear on the output shaft. Large gear, so as to achieve the purpose of deceleration; the ratio of the number of teeth of the large and small gear is the transmission ratio. The reducer is often used as a reduction transmission device between the prime mover and the working machine. It plays the role of matching speed and transmitting torque between the prime mover and the working machine or the actuator, and is widely used in modern machinery.

The reducer in the prior art generally includes: a casing, an input shaft and an output shaft installed on the casing, and a reduction transmission mechanism installed in the casing and connected between the input shaft and the output shaft. The structure of the reduction transmission mechanism is extremely Simple, resulting in poor transmission stability, and the effect of matching speed and transmission torque is not ideal; The effect is relatively ideal, but its production cost is high, which is not conducive to maintenance.

In view of this, the inventor proposes the following technical solutions.

Utility model content:

The purpose of the utility model is to overcome the deficiencies of the prior art and provide an improved speed reducer.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical scheme: the improved speed reducer includes: a chassis, an input shaft and an output shaft installed on the chassis, and a shaft installed in the chassis and connected to the input shaft and the output shaft. The deceleration transmission mechanism between, the deceleration transmission mechanism includes: the worm gear installed in the chassis, the worm connected with the worm gear to drive the worm gear to rotate, and the main drive shaft used to drive the worm shaft, the output shaft is arranged on the worm gear , the input shaft is interlocked with the main drive shaft, and the input shaft and the output shaft are arranged perpendicular to each other.

Furthermore, in the above technical solution, the rear end of the input shaft is provided with a small double gear; the main drive shaft is provided with a large double gear, and the large double gear meshes with the small double gear.

Furthermore, in the above technical solution, the main drive shaft is provided with a main helical gear, and one end of the worm is provided with an auxiliary helical gear, and the auxiliary helical gear meshes with the main helical gear.

Furthermore, in the above technical solution, one end of the main drive shaft is provided with the first and second bearings, the other end of the main drive shaft is provided with the third and fourth bearings, and the middle part of the main drive shaft is provided with the first shaft The sleeve seat, the first and second bearings, the third and fourth bearings and the first shaft sleeve seat are fixed in the machine case.

Furthermore, in the above technical solution, first and second stepped grooves are provided in the chassis, and the first and second bearings are fixedly installed in the first stepped grooves; the third and fourth bearings are fixed Installed in the second stepped groove.

Furthermore, in the above technical solution, the middle part of the worm is provided with helical teeth, and the helical teeth mesh with the teeth on the outer edge of the worm wheel.

Further, in the above technical solution, the other end of the worm that is installed on the auxiliary helical gear is provided with a fifth bearing, and the worm is also provided with a second sleeve seat, and the second sleeve seat is located on the auxiliary helical gear. between the helical teeth.

After adopting the above-mentioned technical scheme, the utility model has the following beneficial effects compared with the prior art: when the utility model is working, first connect the motor through the input shaft, and the motor drives the input shaft to rotate, and the input shaft is driven and installed on the The large double gear on the main drive shaft rotates, so that the main drive shaft rotates, and the main drive shaft drives the secondary helical gear to rotate through the main helical gear to make the worm rotate, and the worm drives the worm gear to rotate through the helical teeth while rotating, The worm gear drives the output shaft to rotate, which eventually plays a role in matching the rotating speed and transmitting torque well, and the transmission stability in the whole process is better. In addition, the utility model has a relatively simple structure and is convenient for maintenance.

Description of drawings:

Fig. 1 is a structural representation of the utility model.

Detailed ways:

Below in conjunction with specific embodiment and accompanying drawing, the utility model is further described.

As shown in Figure 1, it is an improved reducer, which includes: a chassis 1, an input shaft 2 and an output shaft 3 installed on the chassis 1, and an input shaft 2 and an output shaft 3 installed in the chassis 1 and connected to the input shaft 2 and the output shaft 3 Between the reduction transmission mechanism 4, the reduction transmission mechanism 4 includes: a worm wheel 41 installed in the chassis 1, a worm 42 connected to the worm wheel 41 for driving the rotation of the worm wheel 41, and a main drive shaft for driving the worm 42 rotating shaft 43. The output shaft 3 is arranged on the worm wheel 41, the input shaft 2 is in interlocking motion with the main drive shaft 43, and the input shaft 2 and the output shaft 3 are arranged perpendicular to each other. Since the input shaft 2 and the output shaft 3 are arranged vertically to each other, some special transmission requirements can be met.

The rear end of the input shaft 2 is provided with a small double gear 21; the main drive shaft 43 is provided with a large double gear 431, and the large double gear 431 meshes with the small double gear 31 so that the output shaft 3 can drive the main Drive shaft 43 rotates

The main drive shaft 43 is provided with a main helical gear 432 , and one end of the worm 42 is provided with an auxiliary helical gear 421 , the auxiliary helical gear 421 meshes with the main helical gear 432 so that the main drive shaft 43 can drive the worm 42 to rotate.

One end of the main drive shaft 43 is provided with first and second bearings 433, 434, the other end of the main drive shaft 43 is provided with third and fourth bearings 435, 436, and the middle part of the main drive shaft 43 is provided with a first shaft The sleeve seat 437, the first and second bearings 433, 434 and the third and fourth bearings 435, 436 and the first shaft sleeve seat 437 are fixed in the cabinet 1, so that the main drive shaft 43 runs very stably, with It has better transmission stability. Specifically, the chassis 1 is provided with first and second stepped grooves, and the first and second bearings 433, 434 are fixedly installed in the first stepped grooves, and the structure of the first stepped grooves has a leak-proof The effect of oil: the third and fourth bearings 435, 436 are fixedly installed in the second stepped groove, and the structure of the second stepped groove also has the effect of preventing oil leakage.

The middle part of the worm 42 is provided with a helical tooth 422, and the helical tooth 422 meshes with the teeth on the outer edge of the worm wheel 41, so that the worm 42 can drive the worm wheel 41 to rotate, and the worm wheel 41 can drive the output shaft to rotate. In addition, the other end of the worm 42 opposite to the auxiliary helical gear 421 is provided with a fifth bearing 423, and the worm 42 is also provided with a second sleeve seat 424, and the second sleeve seat 424 is located on the auxiliary helical gear 421. Between the spiral tooth 422, the worm 42 is installed in the casing through the fifth bearing 423 and the second sleeve seat 424, which can improve the rotation stability of the worm 42 to have better transmission stability.

When the utility model works, the motor is first connected to the motor through the input shaft 2, and the motor drives the input shaft 2 to rotate. The drive shaft 43 rotates, and the main drive shaft 43 drives the auxiliary helical gear 421 to rotate through the main helical gear 432 to impel the worm 42 to rotate. The worm 42 drives the worm wheel 41 to rotate through the helical teeth 422 while rotating, and the worm wheel 41 drives the worm wheel 41 to rotate. The rotation of the output shaft finally plays a role of good matching speed and transmission torque, and the stability of the transmission in the whole process is better. In addition, the utility model has a relatively simple structure and is convenient for maintenance.

Of course, the above descriptions are only specific embodiments of the utility model, and are not intended to limit the implementation scope of the utility model. Should be included in the utility model patent scope.

Claims (7)

1. Improved reducer, which includes: a chassis (1), an input shaft (2) and an output shaft (3) installed on the chassis (1), and an input shaft (2) installed in the chassis (1) and connected to the input shaft (2) ) and the output shaft (3) between the reduction transmission mechanism (4), characterized in that: the reduction transmission mechanism (4) includes: a worm wheel (41) installed in the chassis (1), connected to the worm wheel (41) The worm (42) used to drive the worm wheel (41) to rotate and the main drive shaft (43) used to drive the rotation shaft of the worm (42), the output shaft (3) is arranged on the worm wheel (41), and the input shaft (2) Linked with the main drive shaft (43), and the input shaft (2) and the output shaft (3) are arranged vertically to each other. 2. The improved reducer according to claim 1, characterized in that: the rear end of the input shaft (2) is provided with a small double gear (21); the main drive shaft (43) is provided with a large double gear gear (431), the large double gear (431) meshes with the small double gear (31). 3. The improved reducer according to claim 1, characterized in that: the main drive shaft (43) is provided with a main helical gear (432), and one end of the worm (42) is provided with an auxiliary helical gear (421 ), the auxiliary helical gear (421) meshes with the main helical gear (432). 4. The improved reducer according to claim 1, characterized in that: one end of the main drive shaft (43) is provided with first and second bearings (433, 434), and the other end of the main drive shaft (43) The third and fourth bearings (435, 436) are provided, and the middle part of the main drive shaft (43) is provided with a first sleeve seat (437), the first and second bearings (433, 434) and the third, The fourth bearing (435, 436) and the first sleeve seat (437) are fixed in the casing (1). 5. The improved reducer according to claim 4, characterized in that: the chassis (1) is provided with first and second stepped grooves, and the first and second bearings (433, 434) are fixed Installed in the first stepped groove; the third and fourth bearings (435, 436) are fixedly installed in the second stepped groove. 6. The improved reducer according to claim 3, characterized in that: the middle part of the worm (42) is provided with helical teeth (422), and the helical teeth (422) mesh with the teeth on the outer edge of the worm wheel (41) . 7. The improved reducer according to claim 6, characterized in that: the other end of the worm (42) opposite to the auxiliary helical gear (421) is provided with a fifth bearing (423), and the worm (42) ) is also provided with a second bushing seat (424), and the second bushing seat (424) is located between the secondary helical gear (421) and the helical tooth (422).