A stretch machine anti-jumping mechanism

Abstract

The application discloses a tensioning machine anti-slotting mechanism, which comprises a mounting frame, the mounting frame is fixedly installed at both ends of a tension wheel, the mounting frame is located at a position where a cable enters the tension wheel, the mounting frame is threadedly connected with an incoming cable clamping shaft, the lower end of the incoming cable clamping shaft is rotatably installed with an incoming cable clamping frame, the lower side of the incoming cable clamping frame is rotatably installed with an incoming cable clamping wheel, the upper side of the mounting frame is fixedly installed with two mounting columns, the upper ends of the mounting columns are all hingedly connected with hinge shafts, the hinge shafts are all rotatably installed with outgoing cable clamping wheels, the upper ends of the hinge shafts are all hingedly connected with fixing columns, the two fixing columns are threadedly connected with the same outgoing cable clamping shaft, and the thread rotation directions of the two ends of the outgoing cable clamping shaft are opposite. The application fixes the incoming cable position of the tension wheel through the incoming cable clamping wheel, so that the incoming end of the cable is fixed in a wire slot on the tension wheel; the outgoing cable of the tension wheel is limited through the outgoing cable clamping wheel, the influence of the outgoing end of the cable swinging is reduced, and the possibility of the cable jumping in the use process of the tensioning machine is reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of tension machines, and relates to a tension machine anti-jumping mechanism. BACKGROUND

[0002] A tension machine is a kind of mechanical equipment for cable installation engineering. In the process of cable installation, the tension machine provides traction for the cable and maintains the tension of the cable. The tension machine or tensioner is provided with a tension wheel, and the cable is usually spirally wound in the wire slot outside the tension wheel.

[0003] In the process of cable traction, the two ends of the cable may swing due to wind force and other external forces, which may cause the cable to come off the wire slot of the tension wheel during the swinging process, affecting the normal work of the tension machine. SUMMARY

[0004] In view of the above problems, the application provides a tension machine anti-jumping mechanism, which solves the problems in the prior art.

[0005] In order to achieve the above purpose, the technical scheme adopted by the application is as follows:

[0006] A tension machine anti-jumping mechanism comprises:

[0007] A mounting frame is fixedly installed at both ends of the tension wheel, and the mounting frame is located at a position where the cable enters the winding tension wheel;

[0008] A wire entry clamping shaft is threadedly connected to the mounting frame;

[0009] A wire entry clamping frame is rotatably installed at the lower end of the wire entry clamping shaft;

[0010] A wire entry clamping wheel is rotatably installed on the wire entry clamping frame, and the side of the wire entry clamping wheel faces the position where the cable enters the winding tension wheel;

[0011] Two mounting columns are fixedly installed on the upper side of the mounting frame;

[0012] A hinge shaft is hingedly connected to the upper end of each mounting column;

[0013] A wire exit clamping wheel is rotatably installed on each hinge shaft;

[0014] A fixing column is hingedly connected to the upper end of each hinge shaft;

[0015] A wire exit clamping shaft is threadedly connected to the two fixing columns, and the threads at both ends of the wire exit clamping shaft are in opposite directions.

[0016] Optionally, a wire feeding push wheel is rotatably installed on one side of the mounting frame, and the wire feeding push wheel is installed above the wire feeding clamping wheel wire feeding position.

[0017] Optionally, a pawl is fixedly connected with the wire outlet clamping wheel, a ratchet wheel is fixedly installed on the hinge shaft, and the pawl is installed with a return spring.

[0018] Optionally, a through hole is formed in the pawl, a positioning pin is arranged in the through hole, and a positioning hole is formed in the wire outlet clamping wheel end face.

[0019] Optionally, the mounting frame comprises a mounting plate and two support plates, the two support plates are respectively installed at both ends of the tension wheel, the support plate comprises a sleeve, a sleeve rod is slidably installed in the sleeve, and a locking piece is installed on the support plate.

[0020] Optionally, one of the fixing columns is fixedly connected with a limiting rod, and the limiting rod abuts against the other fixing column after the wire outlet clamping shaft is screwed.

[0021] Optionally, the distance between the two mounting columns is smaller than the distance between the fixing columns after being screwed.

[0022] Optionally, a wire outlet supporting wheel is rotatably installed on the upper end of the mounting frame, and the wire outlet supporting wheel is installed below the wire outlet clamping wheel wire outlet position.

[0023] Optionally, the locking piece comprises a rack and a positioning screw, the rack is fixedly installed on the mounting sleeve rod, the positioning screw is threadedly connected with the sleeve, and the positioning screw abuts against the rack after being screwed.

[0024] Compared with the prior art, the present application has the following beneficial effects:

[0025] 1. The cable feeding end is fixed in the wire groove on the tension wheel through the wire feeding clamping wheel fixing the tension wheel cable feeding position, and the cable outlet end swing is reduced through the wire outlet clamping wheel limiting the tension wheel cable, thereby reducing the possibility of cable slotting during the use of the traction machine;

[0026] 2. The wire feeding end of the tension wheel is usually fed from a position higher than the tension wheel, the wire feeding cable is pressed before the wire feeding clamping wheel through the setting of the wire feeding push wheel, the pressing force required by the wire feeding clamping wheel is reduced, and the swing amplitude of the cable during wire feeding is reduced, thereby facilitating the position limitation of the cable;

[0027] 3. The limiting rod is arranged, the clamping degree of the two wire outlet clamping wheels on the cable is controlled when the wire outlet clamping shaft is screwed, and the possibility of damaging the cable outer skin and blocking the cable traction due to excessive clamping force is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is the overall structural schematic diagram of the embodiment of the present application;

[0029] Figure 2 is the structural schematic diagram of the mounting rack part of the embodiment of the present application;

[0030] Figure 3 is the structural schematic diagram of the incoming line clamping wheel part of the embodiment of the present application;

[0031] Figure 4 is the structural schematic diagram of the outgoing line clamping wheel part of the embodiment of the present application; Figure 3 is the enlarged schematic diagram of part B in

[0032] Figure 5 is the enlarged schematic diagram of part A in Figure 2

[0033] Reference signs: 1, mounting rack; 11, mounting plate; 12, support plate; 121, sleeve; 122, mounting sleeve rod; 13, locking piece; 131, rack; 132, positioning screw;

[0034] 2, incoming line clamping shaft; 21, incoming line clamping frame; 22, incoming line clamping wheel; 231, incoming line pushing wheel;

[0035] 31, mounting column; 32, hinged shaft; 33, outgoing line clamping wheel; 331, pawl; 332, ratchet wheel; 333, return spring; 334, positioning pin; 34, fixing column; 341, limiting rod; 35, outgoing line clamping shaft; 36, outgoing line supporting wheel. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be described clearly and completely 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, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work are within the protection scope of the present application.

[0037] Please refer to Figures 1-5 , a kind of stretching machine anti jump mechanism disclosed in the embodiment of the present application, please refer to Figures 1-4 ​, including the mounting frame 1, the mounting frame 1 is fixedly installed at both ends of the tension pulley, the mounting frame 1 is located at the position of the cable entering the winding tension pulley, the mounting frame 1 is threadedly connected with the incoming cable shaft 2, the lower end of the incoming cable shaft 2 is rotatably installed with the incoming cable holder 21, the lower side of the incoming cable holder 21 is rotatably installed with the incoming cable wheel 22, the side of the incoming cable wheel 22 is opposite to the position of the cable entering the winding tension pulley, the upper side of the mounting frame 1 is fixedly installed with two mounting columns 31, the upper end of the mounting column 31 is hingedly connected with the hinge shaft 32, the hinge shaft 32 is rotatably installed with the outgoing cable wheel 33, the upper end of the hinge shaft 32 is hingedly connected with the fixed column 34, the two fixed columns 34 are threadedly connected with the same outgoing cable shaft 35, and the threads at both ends of the outgoing cable shaft 35 are opposite in rotation direction.

[0038] Specifically, the cable is spirally wound on the tension pulley, the mounting frame 1 is fixedly installed on the fixed shell at both ends of the tension pulley, the cable at the incoming end of the tension pulley passes below the incoming cable wheel 22, the incoming cable wheel 22 is adjusted to press the cable downward to press the cable in the wire slot on the tension pulley, the cable at the outgoing end of the tension pulley passes above the mounting frame 1, the cable is clamped between the two outgoing cable wheels 33, and the clamping force is adjusted by the outgoing cable shaft 35.

[0039] In this way, the incoming cable position of the tension pulley is fixed by the incoming cable wheel 22, so that the incoming end of the cable is fixed in the wire slot on the tension pulley, and the outgoing cable of the tension pulley is limited by the outgoing cable wheel 33, which reduces the influence of the swing of the outgoing end of the cable, and further reduces the possibility of cable jumping during the use of the traction machine.

[0040] In some feasible ways, the mounting frame 1 is C-shaped frame, the two ends of the mounting frame 1 are fixedly installed on the fixed shell at both ends of the tension pulley, the incoming cable shaft 2 penetrates the mounting frame 1, the incoming cable holder 21 is C-shaped frame, the outer side of the incoming cable wheel 22 is semicircular groove shape adapted to the cable, the outer side of the outgoing cable wheel 33 is V-shaped, the two ends of the hinge shaft 32 are in hinged state, the outgoing cable shaft 35 is adjusted during threading to increase the distance between the outgoing cable wheels 33, facilitating threading, and the distance between the two mounting columns 31 is less than the distance between the fixed columns 34 after being screwed, so that the two mounting columns 31, the outgoing cable wheels 33, the fixed columns 34 and the outgoing cable shaft 35 form a trapezoidal structure, the outgoing cable shaft 35 is tightened to form clamping of the cable, and the outgoing cable shaft 35 with two different thread rotation directions controls the clamping of the two outgoing cable wheels 33 at the same time when rotating.

[0041] As a specific embodiment of the traction machine anti-jumping mechanism provided by the application, please refer to Figure 3 The side of the mounting frame 1 is rotatably installed with the incoming push wheel 231, and the incoming push wheel 231 is installed above the incoming position of the incoming cable wheel 22.

[0042] Overall, the tension wheel wire inlet end is usually from a higher position than the tension wheel, by setting the wire inlet push wheel 231, the wire cable is pressed before the wire inlet card wheel 22, reducing the pressing force required by the wire inlet card wheel 22, and reducing the swing amplitude of the cable during wire inlet, facilitating the position restriction of the cable.

[0043] In some feasible ways, the wire inlet push wheel 231 is an I-shaped wheel, the ring groove outside the wire inlet push wheel 231 is wider than the diameter of the cable, and the two ends of the ring groove are provided with arc surfaces to reduce the possibility of scratching the cable during swinging.

[0044] As another specific embodiment of the anti-jumping mechanism of the traction machine provided by the application, please refer to Figure 5 The wire outlet card wheel 33 is fixedly connected with a pawl 331, the hinge shaft 32 is fixedly installed with a ratchet wheel 332, and the pawl 331 is installed with a return spring 333.

[0045] Combined with specific use scenarios, by setting the pawl 331 and the ratchet wheel 332, the wire outlet card wheel 33 is unidirectionally rotated towards the cable outlet end, reducing the possibility of cable retreat from the traction machine wire slot caused by the cable retreat during traction machine shutdown or other situations.

[0046] Further, the pawl 331 is provided with a through hole, the through hole is provided with a positioning pin 334, and the end surface of the wire outlet card wheel 33 is provided with a positioning hole.

[0047] It should be understood that by setting the positioning hole and the positioning pin 334, when the wire outlet card wheel 33 needs to be reversed, the positioning pin 334 is inserted into the positioning hole, so that the pawl 331 and the ratchet wheel 332 are separated.

[0048] As a specific embodiment of the anti-jumping mechanism of the traction machine provided by the application, please refer to Figure 2 The mounting frame 1 includes a mounting plate 11 and two support plates 12, the two support plates 12 are respectively installed at both ends of the tension wheel, the support plate 12 includes a sleeve 121, a sleeve rod 122 is slidably installed in the sleeve 121, and the support plate 12 is installed with a locking piece 13.

[0049] It should be understood that by setting the telescopic support plate 12, the height of the mounting plate 11 can be adjusted, and the installation of the outlet end and the inlet end can be adapted.

[0050] Further, the locking piece 13 includes a rack 131 and a positioning screw 132, the rack 131 is fixedly installed on the mounting sleeve rod 122, the positioning screw 132 is threadedly connected to the sleeve 121, and the positioning screw 132 is tightly screwed against the rack 131.

[0051] It should be understood that by setting the positioning screw 132 and the rack 131 structure, the support plate 12 can be locked after being adjusted to an appropriate length.

[0052] In some possible manners, the sleeve 121 is rectangular and cylindrical, the mounting sleeve rod 122 is rectangular and plate-shaped, a plurality of tooth-shaped grooves are formed in the middle of the mounting sleeve rod 122 to form a rack 131, and the positioning screw 132 penetrates the sleeve 121 and is located in the tooth groove of the rack 131.

[0053] As a specific embodiment of the anti-jumping mechanism of the stretching machine provided by the application, please refer to Figure 4 One of the fixed columns 34 is fixedly connected with a limiting rod 341, and the limiting rod 341 is located against the other fixed column 34 after the outgoing line clamping shaft 35 is tightened.

[0054] It should be understood that, by arranging the limiting rod 341, the clamping degree of the two outgoing line clamping wheels 33 on the cable can be controlled when the outgoing line clamping shaft 35 is tightened, and the possibility of damage to the outer skin of the cable and obstruction of the traction of the cable due to excessive clamping force can be reduced.

[0055] As a specific embodiment of the anti-jumping mechanism of the stretching machine provided by the application, please refer to Figure 3 The outgoing line supporting wheel 36 is rotatably arranged at the upper end of the mounting frame 1 and is arranged below the outgoing line position of the outgoing line clamping wheel 33.

[0056] It should be understood that, by arranging the outgoing line supporting wheel 36, the cable can be lifted to the middle of the outgoing line clamping wheel 33, so that the outgoing line clamping wheel 33 can clamp the cable better, and the possibility of damage to the surface layer of the cable due to excessive stress on the lower side of the cable caused by the cable being clamped into the lower side of the outgoing line clamping wheel 33 and then sagging can be reduced.

[0057] In some possible manners, in order to make the incoming line pushing wheel 231 and the outgoing line supporting wheel 36 more suitable for the position of the cable, the incoming line pushing wheel 231 and the outgoing line supporting wheel 36 can also be arranged to be telescopic in the force application direction by arranging the incoming line clamping shaft 2 and the incoming line clamping frame 21 structure.

[0058] Although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements to some of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the application shall be included in the protection scope of the application.

Claims

1. A stretch-press anti-jumping mechanism, characterized in that, The utility model provides a cable winding device, which comprises the following parts: a mounting frame fixedly mounted at both ends of a tension wheel, the mounting frame being located at a position where a cable enters the winding tension wheel; an incoming cable clamping shaft threadedly connected to the mounting frame; an incoming cable clamping frame rotatably mounted at the lower end of the incoming cable clamping shaft; an incoming cable clamping wheel rotatably mounted on the incoming cable clamping frame, the incoming cable clamping wheel being located at a position opposite to the position where the cable enters the winding tension wheel; two mounting columns fixedly mounted on the upper side of the mounting frame; hinged shafts hinged to the upper ends of the mounting columns; outgoing cable clamping wheels rotatably mounted on the hinged shafts; fixed columns hinged to the upper ends of the hinged shafts; an outgoing cable clamping shaft threadedly connected to the two fixed columns, the threads at both ends of the outgoing cable clamping shaft being oppositely directed; an incoming cable pushing wheel rotatably mounted on one side of the mounting frame, the incoming cable pushing wheel being mounted above the position where the incoming cable clamping wheel enters the cable; a pawl fixedly connected to the outgoing cable clamping wheel, a ratchet wheel fixedly mounted on the hinged shaft, and a return spring mounted on the pawl; a through hole formed in the pawl, a positioning pin arranged in the through hole, and a positioning hole formed in the end surface of the outgoing cable clamping wheel.

2. A stretch former anti-kick mechanism according to claim 1, characterised in that: The mounting frame comprises a mounting plate and two support plates, the two support plates being respectively mounted at both ends of the tension wheel, each support plate comprising a sleeve and a sleeve rod slidably mounted in the sleeve, and a locking member mounted on the support plate.

3. The stretch former anti-jump mechanism of claim 1, wherein: One of the fixed columns is fixedly connected to a limiting rod, the limiting rod abutting against the other fixed column after the outgoing cable clamping shaft is screwed.

4. The stretch former anti-jump mechanism of claim 1, wherein: The distance between the two mounting columns is smaller than the distance between the two fixed columns after the outgoing cable clamping shaft is screwed.

5. A stretch press anti-kick mechanism according to claim 1 wherein: An outgoing cable supporting wheel is rotatably mounted on the upper end of the mounting frame, the outgoing cable supporting wheel being mounted below the position where the outgoing cable clamping wheel exits the cable.

6. A stretch press anti-kick mechanism according to claim 2, wherein: The locking member comprises a rack and a positioning screw, the rack being fixedly mounted on the mounting sleeve rod, and the positioning screw being threadedly connected to the sleeve, the positioning screw abutting against the rack after being screwed.

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