CN110767388A - Automatic detection mechanism for cable plugging belt of interlocking armored submersible pump - Google Patents

Abstract

The invention discloses an automatic detection mechanism for a cable blocking belt of a chain armored submersible pump, and relates to the technical field of cable production of chain armored submersible pumps. The electric control makes an emergency shutdown operation, avoids the damage to the cable caused by belt blockage, and solves the economic loss caused by the fact that an operator cannot find the belt blockage in time.

Description

Automatic detection mechanism for cable plugging belt of interlocking armored submersible pump

Technical Field

The invention relates to the technical field of chain armored submersible pump cable production, in particular to an automatic detection mechanism for a chain armored submersible pump cable plugging belt.

Background

At present, cable manufacturers at home and abroad wind the surfaces of three parallel cables by using metal belts in the production process of a chain armored submersible pump cable, and meanwhile, a tractor pulls the cables, so that a spiral armored layer is formed on the surfaces of the cables. After the metal band spirally winds the cable, the cable is pre-pressed by a group of front pressing rollers and pressed into a specified size by a group of rear pressing rollers. In the process of interlocking armor, the strap is with the surface of spiral winding at the cable to the ring is detained mutually, when the strap that is twined appears tripping, the strap can't be drawn away by the tractor by the cable, so at a set of preceding compression roller entrance of pre-compaction, appear in same position repeated winding, the diameter is bigger and bigger, produce and pile up, because the drawing of tractor this moment, accumulational strap can't pass through the certain preceding compression roller in interval along with the cable, it is crowded tighter and tighter to become, the cable is finally locked, lead to the cable to be attenuated, even by breaking. As the armoring is carried out at high speed, when an operator finds a belt blockage and then emergently stops the machine, the operator often has no time to repair the belt, so that the loss which cannot be repaired is caused, and the improvement is needed urgently.

Disclosure of Invention

The invention aims to provide an automatic detection mechanism for the cable belt blockage of the interlocking armored submersible pump, which is reasonable in design, aiming at the defects and shortcomings of the prior art, and is used for electrically controlling to make an emergency stop operation, avoiding the damage to the cable caused by the belt blockage and solving the economic loss caused by the fact that an operator cannot find the belt blockage in time.

In order to achieve the purpose, the invention adopts the following technical scheme: the device comprises a front pre-pressing roller, a bracket, a rear precision pressing roller and a frame; the two front prepressing rollers which are symmetrical up and down are respectively screwed on the upper bracket and the lower bracket, the brackets are fixed on the inlet end of the frame, and the outlet end of the frame is screwed with the rear finishing rollers which are symmetrical up and down; the chain wheel mechanism also comprises a first chain wheel, a chain, a second chain wheel, a copper sleeve, a driven shaft, an encoder bracket and an encoder; the outer diameter of a first chain wheel is larger than that of a second chain wheel, the first chain wheel is fixed at one end of a front pre-pressing roller below the first chain wheel, the first chain wheel is connected with the second chain wheel through chain transmission, the second chain wheel is fixed on a driven shaft, the driven shaft is fixed on a support below the driven shaft in a screwing mode through a copper sleeve, the other end of the driven shaft is connected with an encoder, the encoder is fixed on the back face of the support below the driven shaft through an encoder support, and the encoder is connected with an external controller.

The working principle of the invention is as follows: in the production process of the interlocking armored submersible pump cable, three parallel cables are wound and armored by using a metal belt, meanwhile, a tractor is used for drawing the cables, and a spiral interlocking armor layer is covered on the surfaces of the three parallel cables;

in the traction process, a first chain wheel fixed on a front pre-pressing roller at the lower part rotates along with the backward movement of the drawn cable after the armor, the movement of the cable is slow, the rotation of the front pre-pressing roller is slow, namely the rotation of the first chain wheel is slow, the movement of the cable is fast, the rotation of the front pre-pressing roller is fast, namely the rotation of the first chain wheel is fast, and the circumference of the front pre-pressing roller is fixed and unchanged, so the direct relation is formed between the rotation number of the first chain wheel and the movement distance of the cable, namely the circumference of the front pre-pressing roller is multiplied by the rotation number = the movement distance of the cable; the condition is transmitted to a second chain wheel through a first chain wheel and a chain and then transmitted to an encoder, the revolution number of the encoder is transmitted to an external control end, and when the revolution number received by the control end meets the condition, the normal armoring process is carried out; on the contrary, in the armoring process, when the chain armoring layer after passing through the front prepressing roller is tripped, the wound metal belt cannot be drawn away along with the cable, so that repeated winding is generated at the inlet of the front prepressing roller, further accumulation is generated, the accumulated layer cannot pass through the gap between the pair of the front prepressing rollers arranged up and down, the front prepressing roller rotates slowly until the front prepressing roller stops rotating, at the moment, the revolution number of the encoder cannot meet the revolution number in the above conditions, the external electric control end immediately stops the operation, the damage of the cable caused by belt blocking is avoided, the problem that an operator cannot find the belt blocking in time is solved, and the economic loss caused by a manufacturer is avoided.

After adopting the structure, the invention has the beneficial effects that: the invention provides an automatic detection mechanism for a chain armored submersible pump cable belt blockage, which is electrically controlled to perform emergency shutdown operation, avoids the damage to the cable caused by belt blockage, and solves the economic loss caused by the fact that an operator cannot find the belt blockage in time.

Description of the drawings:

fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a view from a in fig. 1.

Description of reference numerals:

the device comprises a front pre-pressing roller 1, a support 2, a rear finishing pressing roller 3, a first chain wheel 4, a chain 5, a second chain wheel 6, a copper sleeve 7, a driven shaft 8, an encoder support 9, an encoder 10, a rack 11, a cable 12 and a metal belt 13.

The specific implementation mode is as follows:

the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 and fig. 2, the following technical solutions are adopted in the present embodiment: the device comprises a front prepressing roll 1, a bracket 2, a rear finishing press roll 3 and a frame 11; two front prepressing rollers 1 which are symmetrical up and down are respectively screwed on an upper bracket 2 and a lower bracket 2 by utilizing bearings (each bracket 2 is composed of bracket plates which are symmetrically arranged front and back), the other bolt components of the brackets 2 are fixed on the inlet end of a frame 11, and the outlet end of the frame 11 is screwed with a rear finishing roller 3 in an up and down symmetrical way; the chain wheel mechanism also comprises a first chain wheel 4, a chain 5, a second chain wheel 6, a copper sleeve 7, a driven shaft 8, an encoder bracket 9 and an encoder 10; the outer diameter of a first chain wheel 4 is larger than that of a second chain wheel 6, the first chain wheel 4 is fixed at one end of a front prepressing roller 1 below, the first chain wheel 4 is in transmission connection with the second chain wheel 6 through a chain 5, the second chain wheel 6 is fixed on a driven shaft 8, the driven shaft 8 is screwed on and fixed on a support 2 below through a copper sleeve 7 (the driven shaft 8 and the copper sleeve 7 are screwed through a bearing, the copper sleeve 7 and the support 2 are fixedly connected in an inserting mode), the other end of the driven shaft 8 is connected with an encoder 10, the encoder 10 is fixed at the back of the support 2 below through an encoder support 9, and the encoder 10 is connected with an external controller.

The working principle of the invention is as follows: in the production process of the interlocking armored submersible pump cable, three parallel cables 12 are wound and armored by using a metal belt 13, meanwhile, a tractor pulls the cables 12, and a spiral interlocking armor layer covers the surfaces of the three parallel cables 12;

in the traction process, a first chain wheel 4 fixed on a front pre-pressing roller 1 below rotates along with the backward movement of the armored and drawn cable, the movement of the cable is slow, the rotation of the front pre-pressing roller 1 is slow, namely the rotation of the first chain wheel 4 is slow, the movement of the cable is fast, the rotation of the front pre-pressing roller 1 is fast, namely the rotation of the first chain wheel 4 is fast, and the circumference of the front pre-pressing roller 1 is fixed, so that the rotation number of the first chain wheel 4 and the movement distance of the cable are in a direct proportion relation, namely the circumference of the front pre-pressing roller is multiplied by the rotation number, and the movement distance of the cable is = the movement distance of the cable; the condition is transmitted to a second chain wheel 6 through a first chain wheel 4 and a chain 5 and then transmitted to an encoder 10, the revolution number of the encoder 10 is transmitted to an external control end, and when the revolution number received by the control end meets the condition, the normal armoring process is performed; on the contrary, in the armoring process, when the chain armoring layer after passing through the front prepressing roller 1 is tripped, the wound metal belt 13 cannot be drawn away along with the cable 12, so that repeated winding is generated at the inlet of the front prepressing roller 1, further accumulation is generated, the accumulated layer cannot pass through the gap between the pair of the front prepressing rollers 1 arranged up and down, the front prepressing roller 1 rotates slowly until the front prepressing roller stops rotating, at the moment, the rotation number of the encoder 10 cannot meet the rotation number in the above conditions, the external electric control end immediately stops operating, the cable damage caused by belt blocking is avoided, the problem that an operator cannot find the belt blocking in time is solved, and the economic loss caused by a manufacturer is avoided.

After adopting above-mentioned structure, this embodiment's beneficial effect is as follows: this embodiment provides a chain armor submersible pump cable blocks up area automatic checkout mechanism, through the direct ratio relation between the distance that the gyration number of preceding precompression roller and finished cable moved, transmit the gyration number for the encoder through the sprocket chain, the gyration number that the rethread external control ware received the satisfied condition, when the gyration number received can not satisfy the direct ratio condition, then shut down immediately, avoided causing the destruction of cable because of stifled area, the problem that the operator can't discover immediately and block up the area has been solved, avoid the manufacturer to cause economic loss.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims (2)

1. An automatic detection mechanism for a cable plugging belt of a chain armored submersible pump comprises a front prepressing roller (1), a bracket (2), a rear finishing pressing roller (3) and a rack (11); the two front prepressing rollers (1) which are symmetrical up and down are respectively screwed on the upper bracket (2) and the lower bracket (2), the brackets (2) are fixed on the inlet end of the frame (11), and the outlet end of the frame (11) is screwed with the rear finishing pressing roller (3) in an up-and-down symmetrical manner; the method is characterized in that: the chain wheel mechanism further comprises a first chain wheel (4), a chain (5), a second chain wheel (6), a copper sleeve (7), a driven shaft (8), an encoder support (9) and an encoder (10); the outer diameter of a first chain wheel (4) is larger than that of a second chain wheel (6), the first chain wheel (4) is fixed at one end of a front prepressing roller (1) below, the first chain wheel (4) is in transmission connection with the second chain wheel (6) through a chain (5), the second chain wheel (6) is fixed on a driven shaft (8), the driven shaft (8) is fixedly connected to a support (2) below in a screwing mode through a copper sleeve (7), the other end of the driven shaft (8) is connected with an encoder (10), the encoder (10) is fixed on the back face of the support (2) below through an encoder support (9), and the encoder (10) is connected with an external controller.

2. The automatic detection mechanism for the cable plugging tape of the interlocking armored submersible pump according to claim 1 is characterized in that: the working principle is as follows: in the production process of the interlocking armored submersible pump cable, three parallel cables (12) are wound and armored by using a metal belt (13), meanwhile, a tractor pulls the cables (12), and a spiral interlocking armor layer covers the surfaces of the three parallel cables (12);

in the traction process, a first chain wheel (4) fixed on a front pre-pressing roller (1) below rotates along with backward movement of a cable to be drawn after being armored, the movement of the cable is slow, the rotation of the front pre-pressing roller (1) is slow, namely the rotation of the first chain wheel (4) is slow, the movement of the cable is fast, the rotation of the front pre-pressing roller (1) is fast, namely the rotation of the first chain wheel (4) is fast, and the circumference of the front pre-pressing roller (1) is fixed, so that the rotation number of the first chain wheel (4) and the movement distance of the cable are in a direct proportion relation, namely the circumference of the front pre-pressing roller is multiplied by the rotation number = the movement distance of the cable; the condition is transmitted to a second chain wheel (6) through a first chain wheel (4) and a chain (5) and then transmitted to an encoder (10), the revolution number of the encoder (10) is transmitted to an external control end, and when the revolution number received by the control end meets the condition, the normal armoring process is carried out; on the contrary, in the armoring process, when the chain armoring layer passing through the front prepressing roller (1) is released, the wound metal belt (13) cannot be drawn away along with the cable (12), so that repeated winding is generated at the inlet of the front prepressing roller (1) to generate accumulation, the accumulation layer cannot pass through the gap between a pair of the front prepressing rollers (1) arranged up and down, the rotation of the front prepressing roller (1) is slowed down until the rotation is stopped, at the moment, the rotation number of the encoder (10) cannot meet the rotation number in the above conditions, and the external electric control end immediately stops the operation.