阅读说明：本技术 一种惰性减速滚筒 (Inertia speed reducing roller ) 是由 王春利 于 2021-06-16 设计创作，主要内容包括：一种惰性减速滚筒,包括滚筒轴,滚筒体,压盖,调心滚子轴承a,平垫圈,弹簧垫圈,六角头螺栓,立式轴承座,调心滚子轴承b,轴用弹性挡圈,包胶层；所述滚筒轴的两端设置有立式轴承座,所述滚筒轴上设有调心滚子轴承和轴用弹性挡圈,所述轴用弹性挡圈与滚筒轴上二次连接,所述调心滚子轴承上端与滚筒体内置配合,所述调心滚子轴承与滚筒轴连接,所述压盖连接在调心滚子轴承的外侧,所述压盖与滚筒体通过弹簧垫圈和六角头螺栓连接。本发明节省了皮带对滚筒的传递功率,节省了驱动功率,简化了整机结构,使整个滚筒结构更加紧凑,用滚筒进行调偏能有效解决现有长距离带式输送机胶带的跑偏问题,可广泛应用于各种带式输送机的纠偏。(An inert speed reduction roller comprises a roller shaft, a roller body, a gland, a self-aligning roller bearing a, a flat gasket, a spring gasket, a hexagon head bolt, a vertical bearing seat, a self-aligning roller bearing b, an elastic retainer ring for the shaft and an adhesive coating layer; the roller shaft structure is characterized in that vertical bearing seats are arranged at two ends of the roller shaft, a self-aligning roller bearing and a shaft circlip are arranged on the roller shaft, the shaft circlip is secondarily connected with the roller shaft, the upper end of the self-aligning roller bearing is matched with the roller body in a built-in mode, the self-aligning roller bearing is connected with the roller shaft, a gland is connected to the outer side of the self-aligning roller bearing, and the gland is connected with the roller body through a spring washer and a hexagon bolt. The invention saves the transmission power of the belt to the roller, saves the driving power, simplifies the structure of the whole machine, leads the structure of the whole roller to be more compact, can effectively solve the problem of deviation of the rubber belt of the existing long-distance belt conveyor by using the roller for deviation adjustment, and can be widely applied to deviation correction of various belt conveyors.)

1. An inert retard roller characterized by: the roller bearing comprises a roller shaft (1), a roller body (2), a gland (3), a self-aligning roller bearing a (4), a plain washer (5), a spring washer (6), a hexagon bolt (7), a vertical bearing seat (9), a self-aligning roller bearing b (10), an elastic retainer ring (11) for the shaft and an encapsulating layer (12); the novel roller bearing is characterized in that vertical bearing seats (9) are arranged at two ends of a roller shaft (1), a self-aligning roller bearing (10) and an axial elastic check ring (11) are arranged on the roller shaft (1), the axial elastic check ring (11) is secondarily connected with the roller shaft (1), the upper end of the self-aligning roller bearing (4) is internally matched with a roller body (2), the self-aligning roller bearing (4) is connected with the roller shaft (1), a gland (3) is connected to the outer side of the self-aligning roller bearing (4), and the gland (3) is connected with the roller body (2) through a spring washer (6) and a hexagon bolt (7).

2. An inert decelerating cylinder as claimed in claim 1, wherein: the flat gasket (5) is fixed on the outer side of the gland (3).

3. An inert decelerating cylinder as claimed in claim 1, wherein: and a framework oil seal (8) is arranged in the gland (3).

4. An inert decelerating cylinder as claimed in claim 2, wherein: the framework oil seal (8) is an inner-wrapped framework oil seal.

5. An inert decelerating cylinder as claimed in claim 1, wherein: an encapsulating layer (12) is arranged on the outer side of the roller body (2).

6. An inert decelerating cylinder as claimed in claim 4, wherein: the material of the encapsulating layer (12) is polyurethane.

7. An inert decelerating cylinder as claimed in claim 4, wherein: the elastic retainer ring (11) for the shaft is a retainer ring for a single-hole shaft.

8. An inert decelerating cylinder as claimed in claim 1, wherein: the vertical bearing seat (9) is made of stainless steel.

9. An inert decelerating cylinder as claimed in claim 1, wherein: the inner hole of the self-aligning roller bearing (10) is cylindrical or conical.

Technical Field

The invention relates to a roller for a belt conveyor, in particular to an inertia speed-reducing roller for the belt conveyor.

Background

In the belt conveyor, the rollers are the main components of the belt conveyor and are divided into a transmission roller, a turnabout roller, a speed regulating roller and a deviation correcting roller according to functions. The transmission roller is an important part for the belt conveyor to safely and normally transmit power to work. In the work of the belt conveyor, a belt conveyor driving roller is a main part of the whole belt conveyor for power transmission, and the roller rotates under the driving of a motor, a speed reducer and a coupler to drive the belt conveyor to perform belt transmission under the action of inertia force and friction force, so that the material conveying function is realized; the turnabout drum is a main part of a belt conveyor for finishing the work of conveying and transmitting power of the whole belt conveyor, and is used for bearing a return belt in order to finish the closed loop design of the belt, each belt conveyor is at least provided with a transmission drum and a turnabout drum, under special conditions, the number of layers of a belt storage bin, the moving direction and speed of the belt and the deviation of the belt need to be adjusted through the drums, and a speed adjusting drum, a deviation rectifying drum and a surface increasing drum are derived.

The existing belt conveyor roller mainly comprises a roller shaft, a roller body, an expansion sleeve, a bearing and a bearing seat. The transmission roller is directly connected to the driving motor, and the speed reducer coupler is used for transmission. The belt conveyor starting device is used for starting the belt conveyor and transmitting the power of the belt conveyor to provide power for the conveying belt. The reducer shaft and the roller shaft are directly connected by a coupler, the transmission ratio is one to one, and the transmission ratio cannot be changed without speed change, stepless speed change and change. The turnabout drum is only used as a driven drum and is not connected with a driving part, and the transmission efficiency and the rotating speed completely depend on the self-adjusted tension of the belt conveyor, the rotating speed of the belt and the friction coefficient between the drum and the belt.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides the inertia speed-reducing roller for the belt conveyor, which saves the transmission power of a belt to the roller, saves the driving power, simplifies the structure of the whole roller, enables the structure of the whole roller to be more compact, can effectively solve the deviation problem of the rubber belt of the existing long-distance belt conveyor by using the roller for deviation adjustment, and can be widely applied to deviation correction of various belt conveyors.

The technical scheme adopted by the invention for solving the technical problems is as follows: the self-aligning roller bearing comprises a roller shaft, a roller body, a gland, an aligning roller bearing a, a flat washer, a spring washer, a hexagon head bolt, a vertical bearing seat, an aligning roller bearing b, an elastic retainer ring for the shaft and an adhesive coating layer; the roller shaft structure is characterized in that vertical bearing seats are arranged at two ends of the roller shaft, a self-aligning roller bearing and a shaft circlip are arranged on the roller shaft, the shaft circlip is secondarily connected with the roller shaft, the upper end of the self-aligning roller bearing is matched with the roller body in a built-in mode, the self-aligning roller bearing is connected with the roller shaft, a gland is connected to the outer side of the self-aligning roller bearing, and the gland is connected with the roller body through a spring washer and a hexagon bolt. The flat gasket is fixed on the outer side of the gland. And a framework oil seal is arranged in the gland. The framework oil seal is an internally wrapped framework oil seal. The outer side of the roller body is provided with an encapsulating layer. The material of the encapsulating layer is polyurethane. The elastic retainer ring for the shaft is a retainer ring for a single-hole shaft. The vertical bearing seat is made of stainless steel. The inner hole of the self-aligning roller bearing is cylindrical or conical.

The driving mode of the invention is that the motor drives the speed reducer, the speed reducer drives the roller, the roller drives the belt, and the belt drags the bend roller to realize transmission closed loop. Because the roller is designed to start without load, two layers of bearing transmission torque are arranged between the roller shaft and the roller body, a two-stage speed change and stepless speed regulation are formed, the speed difference between the motor reducer shaft and the roller body which are suitable for driving the roller by the belt conveyor is overcome, the problems that the belt load resistance is large, the speed of the roller is different from that of the belt and the belt is easy to slip in the prior art are solved, the speed of the belt and the roller can be the same, the speed of the motor reducer and the speed of the roller shaft are the same, and an inertia speed reduction roller is integrally formed to meet the requirement of belt speed variability during the carrying of the belt conveyor. After the adhesive tape is loaded, the roller rotates fast, the belt rotates slowly, and the adhesive tape and the roller body are enabled to be synchronous at a high speed without slipping or deviating.

Drawings

FIG. 1 is a full sectional view of an idler retard roller of the present invention;

in the figure, the roller comprises a roller shaft 1, a roller body 2, a roller body 3, a gland 4, a self-aligning roller bearing 5, a flat gasket 6, a spring gasket 7, a hexagon bolt 8, a framework oil seal 9, a vertical bearing seat 10, a self-aligning roller bearing 11, a shaft elastic retainer ring 12 and a rubber coating layer.

Detailed Description

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 shows a schematic structural diagram of a preferred embodiment of the invention, an inert deceleration roller for a belt conveyor comprises a roller shaft, a roller body, a gland, a self-aligning roller bearing a, a flat washer, a spring washer, a hexagon head bolt, a vertical bearing seat, a self-aligning roller bearing b, an elastic retainer ring for a shaft and an encapsulating layer; the roller shaft structure is characterized in that vertical bearing seats are arranged at two ends of the roller shaft, a self-aligning roller bearing and a shaft circlip are arranged on the roller shaft, the shaft circlip is secondarily connected with the roller shaft, the upper end of the self-aligning roller bearing is matched with the roller body in a built-in mode, the self-aligning roller bearing is connected with the roller shaft, a gland is connected to the outer side of the self-aligning roller bearing, and the gland is connected with the roller body through a spring washer and a hexagon bolt. The flat gasket is fixed on the outer side of the gland. And a framework oil seal is arranged in the gland. The framework oil seal is an internally wrapped framework oil seal. The outer side of the roller body is provided with an encapsulating layer. The material of the encapsulating layer is polyurethane. The elastic retainer ring for the shaft is a retainer ring for a single-hole shaft. The vertical bearing seat is made of stainless steel. The inner hole of the self-aligning roller bearing is cylindrical or conical.

The driving mode of the invention is that the motor drives the speed reducer, the speed reducer drives the roller, the roller drives the belt, and the belt drags the bend roller to realize transmission closed loop. Because the roller is designed to start without load, two layers of bearing transmission torque are arranged between the roller shaft and the roller body to form two-stage speed change and stepless speed regulation, the speed of the motor reducer shaft which is suitable for the belt conveyor to drive the roller is different from that of the roller body, two pairs of bearings are adopted between the roller body and the roller shaft to support and transmit, a differential speed change mechanism is formed by superposition, in the process of electrically driving the belt and transmitting the belt to the roller, the load of the belt is changed in a curve manner, the acting force of the belt to the roller in the transmission process is also changed, the roller is correspondingly required to be changed in speed, and the roller forms an inertia speed reduction ratio to the roller shaft because the two pairs of bearings are coupled to act on the roller and the roller shaft.

The invention overcomes the problems of large belt load resistance, different speeds of the roller and the belt and easy slippage of the belt in the prior art, and provides the roller which can integrally form inertia speed reduction by keeping the same speed of the belt and the roller and the same speed of a motor reducer and a roller shaft so as to meet the requirement of belt speed variability during the carrying of a belt conveyor. The belt conveyor has the advantages that after a belt is loaded, the roller rotates fast, the belt rotates slowly, the belt and the roller body are enabled to be synchronous at a high speed, the belt and the roller body do not slip or deviate, the transmission power of the belt to the roller is saved, as long as the belt drives the roller body to rotate synchronously, the roller shaft can be decelerated properly, the driving power is saved, the structure of the whole machine is simplified, and the structure of the whole roller is more compact. Furthermore, the invention adopts the structural characteristics of double-layer bearings of the roller and inertia deceleration, the automatic deviation adjustment can be realized during the running of the belt, if one side of the belt with load deviates, the tension of the belt on the other side changes, the transmission on the two sides of the roller quickly generates differential motion, the bearing on the side with large motion resistance rotates passively, the bearing on the side with small motion resistance generates differential motion, the roller slows down, the resistance of the belt on the side with slow speed of the roller increases, the resistance is transferred to the side, the roller automatically corrects the deviation, the deviation adjustment by the roller can effectively solve the deviation problem of the rubber belt of the existing long-distance belt conveyor, and the invention can be widely applied to the deviation correction of various belt conveyors.