Spiral groove transmission conveying device

Abstract

The utility model belongs to the technical field of mechanical transmission, and discloses a spiral groove transmission conveying device which comprises a roller (1), a roller shaft (2), an end cover (3), a gland (4), an adjusting pad (5) and a belleville spring (6). The roller shaft (2) penetrates through circle centers of two ends of the roller (1) and is used for driving the roller (1) to rotate; the roller (1) can axially slide along the roller shaft (2); a spiral groove is formed in the outer surface of the roller (1); the gland (4) is fixedly arranged at the rear end of the roller (1), and the gland (4) and the step surface of the inner wall of the roller (1) jointly form a cavity; and the end cover (3) can slide back and forth in the cavity. According to the technical scheme, through axial small-range movement of the roller and buffering of the spring, impact on the spiral groove is effectively reduced, stress abrasion of the spiral groove of the roller is reduced, and the purpose of prolonging the service life is achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mechanical drive technical field, concretely relates to a spiral groove drive conveying device. BACKGROUND

[0002] The existing power transmission device is a cylinder rotating around its axis, and two communicating spiral grooves are formed on the surface of the cylinder. When power is transmitted to the device, the cylinder rotates, and the spiral grooves on the surface drive other objects to move forward to convey the objects to a fixed position. After the objects are conveyed to the fixed position, the device returns to the initial state. However, when the spiral grooves push the objects to the fixed position at high speed, the objects pushed by the spiral grooves will collide with the objects that were previously stopped at the fixed position, and the spiral grooves will be subjected to a large reaction force. When the device repeatedly conveys objects to the fixed position, one part of the spiral grooves will be repeatedly impacted, which will cause wear and tear and reduce the service life of the device. Therefore, the problem of reducing the service life of the device due to the impact and collision of the spiral grooves needs to be solved. The existing technology to solve this problem is to increase the hardness of the parts as a whole or locally to resist impact and collision, but the process will be more complex and the cost will be higher. SUMMARY

[0003] (I) Technical problem to be solved

[0004] The technical problem to be solved by the utility model is the problem of reducing the service life of the spiral grooves due to wear and tear.

[0005] (II) Technical solution

[0006] To solve the above technical problems, the utility model provides a spiral groove drive conveying device, which comprises a roller 1, a roller shaft 2, an end cover 3, a gland 4, an adjusting pad 5, and a disc spring 6.

[0007] The roller shaft 2 penetrates the center of the roller 1 at both ends and is used to drive the roller 1 to rotate; the roller 1 can slide axially along the roller shaft 2; and the outer surface of the roller 1 is provided with spiral grooves.

[0008] The gland 4 is fixedly arranged at the rear end of the roller 1 and cooperates with the stepped surface of the inner wall of the roller 1 to form a cavity; the end cover 3 can slide forward and backward in the cavity; the adjusting pad 5 is fixed on the stepped surface of the inner wall of the roller 1, the disc spring 6 is arranged in the cavity, the two ends of the disc spring 6 are in contact with the adjusting pad 5 and the end cover 3 respectively, and the rear end of the end cover 3 abuts against the stepped surface of the roller shaft 2.

[0009] Among them, the roller shaft is provided with three prismatic surfaces at both ends.

[0010] Among them, the roller and the roller shaft are connected together through the three prismatic surfaces.

[0011] Among them, the disc spring 6 is in a compressed state.

[0012] Further, the gland 4 is screwed with the cylinder 1.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the helical groove transmission conveying device has the beneficial effects that: through the axial small-range string movement of the cylinder and the buffering of the spring, the impact on the helical groove is effectively reduced, the stress abrasion of the helical groove of the cylinder is reduced, and the service life is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the assembly view of the helical groove transmission conveying device of the utility model;

[0016] Figure 2 is the cylinder view;

[0017] Figure 3 is the cylinder sectional view;

[0018] Figure 4 is the cylinder shaft view;

[0019] Figure 5 is the end cover view;

[0020] Figure 6 is the gland view;

[0021] Figure 7 is the adjusting pad view;

[0022] Figure 8 is the disc spring view. DETAILED DESCRIPTION

[0023] In order to make the purpose, content and advantages of the utility model more clear, the specific implementation of the utility model is described in further detail below in combination with the drawings and examples.

[0024] The helical groove transmission conveying device of the embodiment comprises a cylinder 1, a cylinder shaft 2, an end cover 3, a gland 4, an adjusting pad 5 and a disc spring 6.

[0025] The cylinder 1 is used to push the parts on the surface of the helical groove to move linearly forward and convey the parts to a fixed position.

[0026] The cylinder shaft 2 is used to transmit power to the cylinder and drive the cylinder to rotate together.

[0027] The end cover 3 is used to bear the disc spring and play a guiding role.

[0028] The gland 4 is used to provide the space for the end cover to slide in and is screwed with the cylinder to become an integral whole with the cylinder.

[0029] Adjusting pad 5, used to adjust the pre-pressure of the disc spring by grinding its thickness;

[0030] Disc spring 6, used to compress the stroke when the roller is stressed to make it buffered.

[0031] The connecting relationship and mutual position relationship among the above-mentioned components are as follows: the roller shaft only provides power for self-rotation; the roller and the roller shaft are connected through a three-sided surface and the roller can slide on the roller shaft for a short distance; the gland is connected in the roller cavity through threads and moves together with the roller; the end cover is installed in the gland and can slide relative to the gland; the adjusting pad is attached to the right inner wall of the roller cavity; the five disc springs A90-1 are between the end cover and the gland and have a certain pre-pressure between the end cover and the adjusting pad. Among them, the roller has an influence on the function of the application, and without affecting the connection interface, the three-sided surface interface of the left end face of the roller is moved to the right, and the left end face forms a cavity, and the cavity has a threaded interface inside, which ensures the installation of the disc spring of the roller.

[0032] The specific working process of the device is as follows: the roller shaft and the roller are connected together through a profiled surface, the roller shaft rotates, transmits power to the roller and drives the roller to rotate together, the spiral groove on the surface of the roller pushes the object forward to make linear motion and carries the object to a certain fixed position. When the roller rotates, it will continuously carry the object forward to the fixed position. When the next object reaches the fixed position, it will collide with the object carried in the fixed position last time, at which time the spiral groove of the roller will be subjected to a reverse force. The roller transmits the reverse force to the adjusting pad and compresses the disc spring together, the position of the end cover relative to the roller shaft does not change, the gland is connected and fixed with the roller through threads and restricts the end cover axially. The roller and the adjusting pad compress the disc spring together and move backward to buffer, which reduces the stress and wear of the spiral groove of the roller, and achieves the purpose of improving the service life.

[0033] The above-mentioned is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled persons in the technical field, without departing from the technical principle of the present application, a number of improvements and deformations can be made, which should be regarded as the protection range of the present application.

Claims

1. A helical groove drive conveyor characterized by, It comprises a drum (1), a drum shaft (2), an end cover (3), a pressing cover (4), an adjusting pad (5) and a disc spring (6). The drum shaft (2) penetrates the center of the drum (1) and drives the drum (1) to rotate; the drum (1) can slide along the drum shaft (2) in the axial direction; the outer surface of the drum (1) is provided with a spiral groove. The pressing cover (4) is fixedly arranged at the rear end of the drum (1) and cooperates with the stepped surface of the inner wall of the drum (1) to form a cavity; the end cover (3) can slide in the cavity; the adjusting pad (5) is fixed on the stepped surface of the inner wall of the drum (1); the disc spring (6) is arranged in the cavity and the two ends of the disc spring (6) are in contact with the adjusting pad (5) and the end cover (3) respectively; the rear end of the end cover (3) abuts against the stepped surface of the drum shaft (2).

2. The helical groove drive conveyor of claim 1, wherein, Three prismatic surfaces are arranged at the two ends of the drum shaft.

3. The helical groove drive conveyor of claim 2, wherein, The drum and the drum shaft are connected through the three prismatic surfaces.

4. The helical groove drive conveyor of claim 1, wherein, The disc spring is in a compressed state.

5. The helical groove drive conveyor of claim 1, wherein, The pressing cover is threadedly connected with the drum.

Images