Device for simultaneously transmitting torque and axial pressure

Abstract

The utility model discloses a device capable of simultaneously transmitting torque and axial pressure, which comprises a lower joint cavity and an upper joint cavity, the lower joint cavity and the upper joint cavity have the same structure, connectors are arranged in the lower joint cavity and the upper joint cavity, the connectors are connected with the lower joint cavity or the upper joint cavity through sliding connecting pieces capable of sliding left and right, and the sliding connecting pieces are connected with the lower joint cavity or the upper joint cavity. One end of the lower joint cavity and one end of the upper joint cavity are provided with a sealing cover for positioning the connector into the lower joint cavity and the upper joint cavity through bolts, one end of the upper joint cavity is fixedly provided with a middle shaft, and the other end of the middle shaft is integrally connected with the connector in the lower joint cavity; the device capable of transmitting the torque and the axial pressure simultaneously is simple in structure, easy and convenient to operate, capable of transmitting the torque and transmitting the axial pressure, and more convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to screw pump drive technical field, concretely is a device of transmitting torque and axial pressure simultaneously. BACKGROUND

[0002] The motor rotates and transmits torque to the screw pump, the screw pump lifts liquid upward in operation, and downward axial force is generated, the existing device can only transmit one kind usually, the screw pump belongs to eccentric operation, and the motor cannot eccentric operation, therefore a device of transmitting torque and axial pressure simultaneously is required. UTILITY MODEL CONTENTS

[0003] The utility model solves the technical problem to overcome the existing defects, provide a device of transmitting torque and axial pressure simultaneously, simple structure, easy operation, not only can transmit torque, but also can drive axial pressure, use more convenient, can effectively solve the problem in the background art.

[0004] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a device of transmitting torque and axial pressure simultaneously, including lower joint cavity and upper joint cavity, the structure of lower joint cavity and upper joint cavity is same, the inside of lower joint cavity and upper joint cavity is provided with connecting head, connecting head is connected with lower joint cavity or upper joint cavity through the sliding connecting piece that can slide left and right, and connecting head and lower joint cavity or upper joint cavity cannot rotate between, one end of lower joint cavity and upper joint cavity is provided with sealing cover that connects head is positioned to its inside through bolt, one end of upper joint cavity is fixed with intermediate shaft, the other end of intermediate shaft is integrally connected with the connecting head in the inside of lower joint cavity, the one end of connecting head in the inside of upper joint cavity is fixed with connecting shaft, connecting shaft is integrally connected with connecting head, and the output shaft of external driving device is connected with connecting shaft.

[0005] Further, the sliding connecting piece includes connecting convex head fixed uniformly on the outside of connecting head, the outside of each connecting convex head is clamped with sliding block, the inside of lower joint cavity and upper joint cavity is uniformly provided with sliding groove corresponding with sliding block.

[0006] Further, the number of connecting convex head is not less than three, and sliding groove, sliding block and connecting convex head are one-to-one corresponding.

[0007] Further, the oil seal of annular structure is arranged between sealing cover and intermediate shaft or connecting shaft, and annular recess is arranged on sealing cover corresponding with oil seal.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: First, the connecting shaft is connected to the output shaft of the external drive device through a coupling. The external drive device drives the connecting shaft to rotate. When the connecting shaft rotates, it drives the upper joint cavity and the intermediate shaft to rotate through the sliding connector. The rotation of the intermediate shaft drives the lower joint cavity to rotate. The rotation of the lower joint cavity can drive the external screw pump to rotate. During axial transmission, when the intermediate shaft and the connecting shaft move left and right, they drive the two connecting heads to slide inside the lower joint cavity and the upper joint cavity. During sliding, due to the engagement of the connecting protrusion and the sliding block, the connecting head and the sliding block do not rotate. The sliding block slides inside the sliding groove. Therefore, the connecting head cannot rotate with the lower joint cavity and the upper joint cavity. This device, which transmits torque and axial pressure simultaneously, has a simple structure and is easy to operate. It can not only transmit torque but also transmit axial pressure, making it more convenient to use. Attached Figure Description

[0009] Fig. 1 This is a schematic diagram of the structure of this utility model;

[0010] Fig. 2 This is a schematic diagram of the upper joint cavity structure of this utility model.

[0011] In the diagram: 1. Lower joint cavity, 2. Sliding groove, 3. Sealing cover, 4. Intermediate shaft, 5. Upper joint cavity, 6. Oil seal, 7. Connecting shaft, 8. Connecting protrusion, 9. Sliding block, 10. Connecting head. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0013] Please see Figs. 1-2This utility model provides a technical solution: a device for simultaneously transmitting torque and axial pressure, comprising a lower joint cavity 1 and an upper joint cavity 5. The lower joint cavity 1 and the upper joint cavity 5 have identical structures. A connector 10 is provided inside both the lower joint cavity 1 and the upper joint cavity 5. The connector 10 is connected to the lower joint cavity 1 or the upper joint cavity 5 via a sliding connector that can slide left and right. The connector 10 cannot rotate with the lower joint cavity 1 or the upper joint cavity 5. A sealing cap for positioning the connector 10 inside is bolted to one end of the lower joint cavity 1 and the upper joint cavity 5. 3. One end of the upper joint cavity 5 is fixed with an intermediate shaft 4, and the other end of the intermediate shaft 4 is integrally connected to the connector 10 inside the lower joint cavity 1. One end of the connector 10 inside the upper joint cavity 5 is fixed with a connecting shaft 7, which is integrally connected to the connector 10. The connecting shaft 7 is connected to the output shaft of the external drive device. The sliding connector includes connecting protrusions 8 evenly fixed on the outside of the connector 10. Each connecting protrusion 8 has a sliding block 9 engaged on its outside. The interiors of the lower joint cavity 1 and the upper joint cavity 5 are evenly provided with sliding grooves 2 corresponding to the sliding blocks 9. There are at least three components, and the sliding groove 2, sliding block 9, and connecting protrusion 8 correspond one-to-one. An annular oil seal 6 is provided between the sealing cover 3 and the intermediate shaft 4 or connecting shaft 7. The sealing cover 3 has an annular groove corresponding to the oil seal 6. First, the connecting shaft 7 is connected to the output shaft of the external drive device through a coupling. The external drive device drives the connecting shaft 7 to rotate. When the connecting shaft 7 rotates, it drives the upper joint cavity 5 and the intermediate shaft 4 to rotate through the sliding connector. The rotation of the intermediate shaft 4 drives the lower joint cavity 1 to rotate. The rotation of the lower joint cavity 1 can drive the external screw pump to rotate. When the device moves axially, the intermediate shaft 4 and the connecting shaft 7 move left and right, causing the two connecting heads 10 to slide inside the lower joint cavity 1 and the upper joint cavity 5. During sliding, the connecting protrusion 8 and the sliding block 9 engage, preventing rotation between the connecting head 10 and the sliding block 9. The sliding block 9 slides inside the sliding groove 2, so the connecting head 10 cannot rotate between the lower joint cavity 1 and the upper joint cavity 5. This device, which transmits torque and axial pressure simultaneously, has a simple structure and is easy to operate. It can transmit torque and axial pressure, making it more convenient to use.

[0014] In use: First, the connecting shaft 7 is connected to the output shaft of the external drive device via a coupling. The external drive device drives the connecting shaft 7 to rotate. When the connecting shaft 7 rotates, it drives the upper joint cavity 5 and the intermediate shaft 4 to rotate through the sliding connector. The rotation of the intermediate shaft 4 drives the lower joint cavity 1 to rotate. The rotation of the lower joint cavity 1 can drive the external screw pump to rotate. During axial transmission, when the intermediate shaft 4 and the connecting shaft 7 move left and right, they drive the two connecting heads 10 to slide inside the lower joint cavity 1 and the upper joint cavity 5. During sliding, due to the engagement of the connecting protrusion 8 and the sliding block 9, the connecting head 10 and the sliding block 9 do not rotate. The sliding block 9 slides inside the sliding groove 2. Therefore, the connecting head 10 cannot rotate with the lower joint cavity 1 and the upper joint cavity 5. When the two connecting heads 10 slide to the limit of the lower joint cavity 1 and the upper joint cavity 5, the connecting shaft 7, the intermediate shaft 4, the lower joint cavity 1 and the upper joint cavity 5 press against each other, which can transmit axial pressure.

[0015] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A device for simultaneously transmitting torque and axial pressure, comprising a lower joint cavity (1) and an upper joint cavity (5), wherein the lower joint cavity (1) and the upper joint cavity (5) have the same structure, characterized in that: Both the lower joint cavity (1) and the upper joint cavity (5) are equipped with connectors (10). The connectors (10) are connected to the lower joint cavity (1) or the upper joint cavity (5) through sliding connectors that can slide left and right. The connectors (10) cannot rotate with the lower joint cavity (1) or the upper joint cavity (5). One end of the lower joint cavity (1) and the upper joint cavity (5) is equipped with a sealing cover (3) that positions the connectors (10) inside it by bolts. One end of the upper joint cavity (5) is fixed with an intermediate shaft (4). The other end of the intermediate shaft (4) is integrally connected with the connectors (10) inside the lower joint cavity (1). One end of the connectors (10) inside the upper joint cavity (5) is fixed with a connecting shaft (7). The connecting shaft (7) is integrally connected with the connectors (10), and the connecting shaft (7) is connected to the output shaft of the external drive device.

2. The device for simultaneously transmitting torque and axial pressure according to claim 1, characterized in that: The sliding connector includes connecting protrusions (8) uniformly fixed on the outside of the connector (10), and a sliding block (9) is snapped onto the outside of each connecting protrusion (8). The interior of the lower joint cavity (1) and the upper joint cavity (5) is uniformly provided with sliding grooves (2) corresponding to the sliding block (9).

3. The device for simultaneously transmitting torque and axial pressure according to claim 2, characterized in that: The number of connecting protrusions (8) is not less than three, and the sliding groove (2), sliding block (9) and connecting protrusions (8) correspond one-to-one.

4. The device for simultaneously transmitting torque and axial pressure according to claim 1, characterized in that: An annular oil seal (6) is provided between the sealing cover (3) and the intermediate shaft (4) or the connecting shaft (7), and the sealing cover (3) is provided with an annular groove corresponding to the oil seal (6).

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