A kind of automatic detection mechanism of chain armored submersible pump cable plug strip

Abstract

The utility model relates to a kind of automatic detection mechanism of chain armored submersible pump cable plug strip, and the utility model relates to chain armored submersible pump cable production technical field, the outer diameter of No. 1 sprocket is greater than the outer diameter of No. 2 sprocket, and No. 1 sprocket is fixed at the end of lower front pre-press roller, No. 1 sprocket and No. 2 sprocket are connected using chain drive, No. 2 sprocket is fixed on driven shaft, driven shaft is fixed on lower support through copper bushing swage, the other end of driven shaft is connected with encoder, encoder is fixed on the back of lower support through encoder support, and encoder is connected with external controller. Electric control makes emergency shutdown operation, avoids the damage to cable caused by plug strip, solves the economic loss caused by that operator cannot find plug strip in time.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of the production of interlocked armored submersible pump cable, and particularly relates to an automatic detection mechanism for the interlocked armored submersible pump cable. BACKGROUND

[0002] At present, domestic and foreign cable manufacturers use metal strips to wrap the surfaces of three parallel cables during the production of interlocked armored submersible pump cables, and a traction machine is used to pull the cables, so as to form a spiral armored layer on the surfaces of the cables. After the spiral wrapping of the metal strips on the cables, the metal strips are first pre-pressed by a group of front pressing rollers and then pressed into a specified size by a group of rear pressing rollers. During the interlocked armoring process, the metal strips are spirally wrapped on the surfaces of the cables and are connected with each other, and when the wrapped metal strips are disconnected, the metal strips cannot be pulled away by the traction machine. Therefore, the disconnected metal strips are repeatedly wrapped at the same position and the diameters of the disconnected metal strips become larger and larger, and the disconnected metal strips are accumulated. At this time, due to the pulling of the traction machine, the accumulated metal strips cannot pass through the front pressing rollers at intervals, and the accumulated metal strips are squeezed more and more tightly, and finally the accumulated metal strips are locked with the cables, so that the cables are pulled thin and even broken. When the operator finds the disconnected metal strips and urgently stops the machine, it is often too late, and the economic loss caused by the disconnection of the metal strips cannot be repaired. SUMMARY

[0003] The present application aims at the defects and deficiencies of the prior art, and provides an interlocked armored submersible pump cable disconnected metal strip automatic detection mechanism, so that the electric control makes an emergency stop operation, the damage to the cables caused by the disconnected metal strips is avoided, and the economic loss caused by the failure of the operator to timely find the disconnected metal strips is solved.

[0004] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: it comprises front pre-pressing rollers, supports, rear fine pressing rollers and a rack; the two front pre-pressing rollers are symmetrically arranged above and below and are rotatably connected to the upper and lower supports, respectively, the supports are fixed to the inlet end of the rack, and the rear fine pressing rollers are symmetrically rotatably connected to the outlet end of the rack; it further comprises a first sprocket, a chain, a second sprocket, a copper sleeve, a driven shaft, an encoder support and an encoder; the outer diameter of the first sprocket is larger than that of the second sprocket, the first sprocket is fixed to one end of the lower front pre-pressing roller, the first sprocket and the second sprocket are connected by the chain, the second sprocket is fixed to the driven shaft, the driven shaft is rotatably connected to the lower support through the copper sleeve, the other end of the driven shaft is connected to the encoder, the encoder is fixed to the back of the lower support through the encoder support, and the encoder is connected to an external controller.

[0005] The working principle of the present application is as follows: during the production of the interlocked armored submersible pump cable, metal strips are used to wrap and armor three parallel cables, and a traction machine is used to pull the cables, so as to cover a spiral interlocked armored layer on the surfaces of the three parallel cables;

[0006] In the process of traction, the first sprocket fixed on the lower front pre-pressing roller rotates with the rear movement of the armored cable being pulled, the cable moves slowly, the front pre-pressing roller rotates slowly, that is, the first sprocket rotates slowly, the cable moves fast, the front pre-pressing roller rotates fast, that is, the first sprocket rotates fast, since the circumference of the front pre-pressing roller is fixed, the number of rotations of the first sprocket is proportional to the moving distance of the cable, that is, the circumference of the front pre-pressing roller x the number of rotations = the moving distance of the cable; the condition is transmitted to the second sprocket through the first sprocket and the chain, and then transmitted to the encoder, and the number of rotations of the encoder is transmitted to the external control end, when the number of rotations received by the control end meets the above condition, it belongs to the normal armored process; otherwise, in the armored process, when the interlocking armored layer after the front pre-pressing roller is tripped, the wound metal belt cannot be pulled away with the cable, so repeated winding will occur at the inlet of the front pre-pressing roller, and then accumulation will occur, the accumulation layer cannot pass through the gap between the upper and lower front pre-pressing rollers, causing the front pre-pressing roller to rotate slowly until it stops, at this time the number of rotations of the encoder cannot meet the number of rotations in the above condition, the external electric control end immediately stops the operation, avoiding the damage to the cable caused by the blocking of the belt, solving the problem that the operator cannot find the blocking of the belt in time, avoiding the economic loss caused by the manufacturer.

[0007] After adopting the above structure, the beneficial effects of the present application are: the present application provides a mechanism for automatically detecting the blocking of the interlocking armored submersible pump cable, and the electric control makes an emergency stop operation to avoid the damage to the cable caused by the blocking of the belt, and solves the economic loss caused by the operator's inability to find the blocking of the belt in time. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 is a structural schematic diagram of the present application.

[0009] Figure 2 is Figure 1 view A in

[0010] BRIEF DESCRIPTION OF DRAWINGS

[0011] front pre-pressing roller 1, support 2, rear precision pressing roller 3, first sprocket 4, chain 5, second sprocket 6, copper sleeve 7, driven shaft 8, encoder support 9, encoder 10, rack 11, cable 12, metal belt 13. DETAILED DESCRIPTION

[0012] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0013] As Figure 1 and Figure 2 The embodiment adopts the technical scheme as follows: it comprises front pre-pressing roller 1, support 2, rear fine pressing roller 3, rack 11; two front pre-pressing rollers 1 symmetrically arranged above and below are respectively screwed on two supports 2 above and below (each support 2 is composed of support plates symmetrically arranged in front and back), the support 2 is fixed on the inlet end of the rack 11 through a bolt assembly, the outlet end of the rack 11 is symmetrically screwed with the rear fine pressing roller 3; it further comprises a first sprocket 4, a chain 5, a second sprocket 6, a copper sleeve 7, a driven shaft 8, an encoder support 9, an encoder 10; the outer diameter of the first sprocket 4 is larger than that of the second sprocket 6, and the first sprocket 4 is fixed on one end of the lower front pre-pressing roller 1, the first sprocket 4 and the second sprocket 6 are drivingly connected through the chain 5, the second sprocket 6 is fixed on the driven shaft 8, the driven shaft 8 is rotatably fixed on the lower support 2 through the copper sleeve 7 (the driven shaft 8 and the copper sleeve 7 are rotatably connected through a bearing, and the copper sleeve 7 is fixedly connected with the support 2), the other end of the driven shaft 8 is connected with the encoder 10, the encoder 10 is fixed on the back of the lower support 2 through the encoder support 9, and the encoder 10 is connected with an external controller.

[0014] The working principle of the present application is that in the production process of the interlocked armored submersible pump cable, the three parallel cables 12 are wound and armored by the metal belt 13, and the traction machine pulls the cables 12, and a spiral interlocked armored layer is covered on the surface of the three parallel cables 12.

[0015] In the traction process, the No. 1 sprocket 4 fixed on the lower front pre-pressing roller 1 rotates with the rear movement of the armored cable, the slower the cable moves, the slower the front pre-pressing roller 1 rotates, that is, the slower the No. 1 sprocket 4 rotates, the faster the cable moves, the faster the front pre-pressing roller 1 rotates, that is, the faster the No. 1 sprocket 4 rotates. Since the circumference of the front pre-pressing roller 1 is fixed, the number of rotations of the No. 1 sprocket 4 is proportional to the moving distance of the cable, that is, the circumference of the front pre-pressing roller x the number of rotations = the moving distance of the cable. This condition is transmitted to the No. 2 sprocket 6 through the No. 1 sprocket 4 and the chain 5, and then transmitted to the encoder 10, and the number of rotations of the encoder 10 is transmitted to the external control end. When the number of rotations received by the control end meets the above condition, it belongs to the normal armored process. Conversely, in the armored process, when the interlocked armored layer after the front pre-pressing roller 1 is tripped, the wound metal strip 13 cannot be pulled away with the cable 12, so at the entrance of the front pre-pressing roller 1, repeated winding will occur, and then accumulation will occur. The accumulation layer cannot pass through the gap between the upper and lower front pre-pressing rollers 1, causing the front pre-pressing roller 1 to slow down and eventually stop rotating. At this time, the number of rotations of the encoder 10 cannot meet the number of rotations in the above condition, and the external control end immediately stops operating, avoiding the damage to the cable caused by the blocked belt, solving the problem that the operator cannot immediately find the blocked belt, and avoiding the economic loss of the manufacturer.

[0016] After adopting the above structure, the beneficial effects of the embodiment are as follows: the embodiment provides a interlocked armored submersible pump cable blocked belt automatic detection mechanism, the number of rotations is transmitted to the encoder through the sprocket and chain according to the proportional relationship between the number of rotations of the front pre-pressing roller and the moving distance of the cable, and then the external controller receives the number of rotations that meets the condition. When the received number of rotations cannot meet the proportional condition, it immediately stops, avoiding the damage to the cable caused by the blocked belt, solving the problem that the operator cannot immediately find the blocked belt, and avoiding the economic loss of the manufacturer.

[0017] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A kind of automatic detection mechanism of interlocked armored submersible pump cable plug strip, it includes front pre-roller (1), support (2), rear precision roller (3), rack (11);Two front pre-rollers (1) of upper and lower symmetry are respectively screwed on the upper and lower two supports (2), support (2) is fixed on the inlet end of rack (11), and the outlet end of rack (11) is symmetrically screwed with rear precision roller (3);Its characterized in that: It also contains a sprocket (4), chain (5), sprocket (6), copper bushing (7), driven shaft (8), encoder bracket (9), encoder (10); the outer diameter of the sprocket (4) is greater than the outer diameter of the sprocket (6), and the sprocket (4) is fixed at one end of the lower front pre-roller (1), the sprocket (4) and the sprocket (6) are connected by the chain (5), the sprocket (6) is fixed on the driven shaft (8), the driven shaft (8) is fixed on the lower bracket (2) through the copper bushing (7), the other end of the driven shaft (8) is connected with the encoder (10), the encoder (10) is fixed on the back of the lower bracket (2) through the encoder bracket (9), and the encoder (10) is connected with the external controller; In the production process of the interlocked armored submersible pump cable, the three parallel cables (12) are wound and armored by the metal belt (13), and the traction machine pulls the cables (12), and a spiral interlocked armored layer is covered on the surfaces of the three parallel cables (12); In the traction process, the sprocket (4) fixed on the lower front pre-roller (1) rotates with the backward movement of the armored cable, the cable moves slowly, the front pre-roller (1) rotates slowly, that is, the sprocket (4) rotates slowly, the cable moves, the front pre-roller (1) rotates quickly, that is, the sprocket (4) rotates quickly, since the circumference of the front pre-roller (1) is fixed, the number of rotations of the sprocket (4) is proportional to the moving distance of the cable, that is, the circumference of the front pre-roller x the number of rotations = the moving distance of the cable; the condition is transmitted to the sprocket (6) through the sprocket (4) and the chain (5), and then to the encoder (10), the number of rotations of the encoder (10) is transmitted to the control end, when the number of rotations received by the control end meets the above condition, it belongs to the normal armored process; otherwise, when the interlocked armored layer after the front pre-roller (1) is tripped, the wound metal belt (13) cannot be pulled away with the cable (12), so repeated winding will occur at the inlet of the front pre-roller (1), and then a stacking layer will be formed, which cannot pass through the gap between the pair of front pre-rollers (1) arranged above and below, causing the front pre-roller (1) to rotate slowly until it stops rotating, at this time the number of rotations of the encoder (10) cannot meet the number of rotations in the above condition, and the external electric control end immediately stops operating.

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