Cable tube stretching device

Abstract

The invention relates to the technical field of cable tube tensile tests, and discloses a cable tube tensile device which comprises a bottom plate, two hydraulic cylinders are fixedly connected to the top of the bottom plate, one ends of hydraulic rods of the two hydraulic cylinders are jointly and fixedly connected with a sliding seat, and the sliding seat slides on the top of the bottom plate. Under the driving of a second inner motor and the meshing effect of a second central bevel gear and a second peripheral bevel gear, a planar stainless steel clamping piece is in contact with the inner wall of the cable tube, so that the clamping piece is tensioned from the interior of the cable tube, and then the clamping piece is fixed from the interior of the cable tube; under the driving of a first inner motor and the meshing effect of a first central bevel gear and a first peripheral bevel gear, an arc-surface stainless steel clamping piece moves to press the outer wall of the cable tube, so that the cable tube is clamped from the outside of the cable tube; and the clamping contact area is increased through clamping of the cambered surface stainless steel clamping piece and the plane stainless steel clamping piece, so that the electric power pipe is clamped more firmly.

Description

Technical Field

[0001] The invention relates to the technical field of cable tube tensile testing, in particular to a cable tube tensile device. Background Art

[0002] At present, in order to ensure the reliability and safety of cable tubes under various installation and use conditions, tensile tests are carried out on them using tensile devices to evaluate their mechanical properties, especially indicators such as tensile strength and maximum elongation, which are crucial.

[0003] However, when the existing cable tube stretching device is used, it can only clamp the cable tube inside or outside, and the clamping contact area of ​​the cable tube is too small, resulting in poor clamping effect of the cable tube. Therefore, in order to advance the technology of the industry, better realize the clamping and fixing function during cable tube stretching, and improve the competitiveness of core technologies, the present application proposes a new implementation scheme that is different from the clamping structure and usage method of the cable tube stretching device in the prior art. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the shortcomings of the prior art, the present invention provides a cable tube stretching device, which is mainly used to solve the problem that during use, the cable tube stretching device can only clamp the cable tube inside or outside, and the clamping contact area of ​​the cable tube is too small, resulting in poor clamping effect of the cable tube.

[0006] (II) Technical solution

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A cable tube stretching device comprises a base plate, the top of which is fixedly connected to two hydraulic cylinders, one end of the hydraulic rods of the two hydraulic cylinders is commonly fixedly connected to a sliding seat, the sliding seat slides on the top of the base plate, and the bottom inner wall of the sliding seat is slidably connected to a movable plate, the top of the base plate is fixedly connected to a fixed plate, one side of the fixed plate and the movable plate are fixedly plugged with an external clamping assembly, the external clamping assembly comprises a connecting shell and a plurality of supporting plates, the connecting shells of the two external clamping assemblies are respectively fixedly plugged on the movable plate and the fixed plate, the supporting plates of the two external clamping assemblies are respectively fixedly fixed on the movable plate and the fixed plate, an external screw is rotatably plugged between the supporting plate and the connecting shell, a sliding plate is provided on the outer wall thread sleeve of the external screw, two external guide rods are fixedly plugged between the supporting plate and the connecting shell, and the sliding The plate is slidably sleeved with the outer guide rod, and one side of the slide plate is fixedly connected with an outer clamping block, and both sides of the outer clamping block are bonded with outer rubber blocks, and one end of the two outer rubber blocks are jointly bonded with an arc-shaped stainless steel clip, and the arc-shaped stainless steel clip is clamped at one end of the outer clamping block, and one end of the connecting shell is provided with an inner clamping assembly, and the inner clamping assembly includes a fixed shell, and the fixed shell is fixed to one end of the connecting shell by bolts, and the fixed shell is circumferentially rotated and plugged with a plurality of inner screws, and the outer wall thread sleeve of the inner screw is provided with an inner clamping block, and the circumference of the fixed shell is fixedly plugged with a plurality of inner guide rods, and the inner clamping block is slidably sleeved with every two inner guide rods, and one end of the inner clamping block is clamped with a flat stainless steel clip, and both sides of the inner clamping block are bonded with inner rubber blocks, and one end of the inner rubber block is bonded to the flat stainless steel clip.

[0009] Furthermore, one end of the outer rubber block and one end of the inner rubber block are both rotatably connected to a rotating wheel.

[0010] On the basis of the above-mentioned solution, one side of the curved stainless steel clip and one side of the flat stainless steel clip are both bonded with anti-skid pads.

[0011] As a further solution of the present invention, one side of the slide plate is fixedly connected to a connecting rib, and one side of the connecting rib is fixedly connected to the outer clamping block.

[0012] Furthermore, a first inner motor is fixedly connected to the inner wall of one end of the connecting shell, an output end of the first inner motor is keyed to a first central bevel gear, one end of the external screw is keyed to a first peripheral bevel gear, and the first peripheral bevel gear is meshed with the first central bevel gear.

[0013] On the basis of the above scheme, a second inner motor is fixedly connected to the inner wall of one side of the connecting shell, the output end of the second inner motor is keyed to a connecting shaft, one end of the connecting shaft extends into the fixed shell and is keyed to a second center bevel gear, one end of the inner screw is keyed to a second outer bevel gear, and the second outer bevel gear is meshed with the second center bevel gear.

[0014] As a further solution of the present invention, the outer wall of one end of the sliding seat is fixedly connected to an external motor, the output end of the external motor is keyed to an adjusting screw, the other end of the adjusting screw is rotatably connected to the inner wall of one end of the sliding seat, and the moving plate is threadedly sleeved with the adjusting screw.

[0015] Furthermore, a plurality of electric push rods are fixedly connected to the top of the base plate, the tops of the plurality of electric push rods are commonly fixedly connected to a bearing seat, the top of the bearing seat is rotatably connected to a plurality of bearing wheels, and both sides of the top of the bearing seat are fixedly connected to limiting plates.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the present invention provides a cable tube stretching device, which has the following beneficial effects:

[0018] 1. Driven by the second inner motor and meshed with the second center bevel gear and the second outer bevel gear, the flat stainless steel clip contacts the inner wall of the cable tube, thereby tensioning the cable tube from the inside and fixing it from the inside. Driven by the first inner motor and meshed with the first center bevel gear and the first outer bevel gear, the curved stainless steel clip moves and presses on the outer wall of the cable tube, thereby clamping the cable tube from the outside. The clamping contact area is increased by the clamping of the curved stainless steel clip and the flat stainless steel clip, thereby making the power tube clamped more firmly.

[0019] 2. By moving the sliding seat driven by the hydraulic cylinder, the moving plate is driven to move, and then one end of the cable tube is driven to stretch, so that the cable tube is subjected to a tensile test, which saves time and effort.

[0020] 3. The bearing seat moves upwards driven by the electric push rod, thereby driving the cable tube to lift upwards, so that both ends of the cable tube are aligned with the inner clamping components of the moving plate and the fixed plate, so as to facilitate the subsequent clamping of the cable tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a left-side stereoscopic structural schematic diagram of a cable tube stretching device embodiment 1 proposed by the present invention;

[0022] Figure 2 This is a partial side cross-sectional structural schematic diagram of a cable tube stretching device embodiment 1 proposed by the present invention;

[0023] Figure 3 It is a partial three-dimensional structural schematic diagram of a cable tube stretching device embodiment 1 proposed by the present invention;

[0024] Figure 4 This is a right-side three-dimensional structural schematic diagram of a cable tube stretching device embodiment 1 proposed by the present invention;

[0025] Figure 5 This is a partial front structural schematic diagram of a cable tube stretching device embodiment 1 proposed by the present invention;

[0026] Figure 6 This is a schematic diagram of the main structure of a cable tube clamping state of a cable tube stretching device embodiment 1 proposed by the present invention;

[0027] Figure 7 This is a schematic diagram of the three-dimensional structure of Example 2 of a cable tube stretching device proposed in the present invention.

[0028] In the figure: 1, bottom plate; 2, hydraulic cylinder; 3, sliding seat; 4, moving plate; 5, fixed plate; 6, outer clamping assembly; 601, connecting shell; 602, support plate; 603, outer screw; 604, outer guide rod; 605, slide plate; 606, outer clamping block; 607, outer rubber block; 608, curved stainless steel clip; 7, inner clamping assembly; 701, fixed shell; 702, inner screw; 703, inner guide rod; 704, inner clamping block; 705 , inner rubber block; 706, flat stainless steel clip; 8, rotating wheel; 9, anti-skid pad; 10, connecting ribs; 11, first inner motor; 12, first center bevel gear; 13, first outer bevel gear; 14, second inner motor; 15, connecting shaft; 16, second center bevel gear; 17, second outer bevel gear; 18, adjusting screw; 19, outer motor; 20, electric push rod; 21, bearing seat; 22, bearing wheel; 23, limit plate. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example 1

[0031] Reference Figure 1-Figure 6, a cable tube stretching device, comprising a bottom plate 1, two hydraulic cylinders 2 are fixed to the top of the bottom plate 1 by bolts, one end of the hydraulic rods of the two hydraulic cylinders 2 is fixed with a sliding seat 3 by bolts, the sliding seat 3 slides on the top of the bottom plate 1, and the bottom inner wall of the sliding seat 3 is slidably connected with a movable plate 4. Under the drive of the hydraulic cylinder 2, the sliding seat 3 moves, thereby driving the movable plate 4 to move, and then driving one end of the cable tube to be stretched, so that the cable tube is subjected to a tensile test, an outer motor 19 is fixed to the outer wall of one end of the sliding seat 3 by bolts, an adjusting screw 18 is key-connected to the output end of the external motor 19, and the other end of the adjusting screw 18 is rotatably connected to the inner wall of one end of the sliding seat 3. Under the drive of the external motor 19, the adjusting screw 18 rotates, thereby driving the movable plate 4 to move, thereby inserting multiple internal clamping components 7 of the movable plate 4 into the other end of the cable tube, and the movable plate 4 is threadedly sleeved with the adjusting screw 18. A fixed plate 5 is fixed to the top of the bottom plate 1 by bolts, and one side of the fixed plate 5 and the movable plate 4 are fixedly plugged with an external clamping component 6;

[0032] The outer clamping assembly 6 includes a connecting shell 601 and a plurality of supporting plates 602. The connecting shells 601 of the two outer clamping assemblies 6 are fixedly inserted on the movable plate 4 and the fixed plate 5, respectively. The supporting plates 602 of the two outer clamping assemblies 6 are fixedly inserted on the movable plate 4 and the fixed plate 5, respectively. An outer screw 603 is rotatably inserted between the supporting plate 602 and the connecting shell 601. A slide plate 605 is provided on the outer wall of the outer screw 603. Two outer guide rods 604 are fixedly inserted between the supporting plate 602 and the connecting shell 601. The slide plate 605 is slidably sleeved with the outer guide rod 604. An outer clamping block 606 is fixed to one side of the slide plate 605 by bolts. External rubber blocks 607 are bonded to both sides of the external clamping block 606. An arc-surface stainless steel clip 608 is bonded to one end of the two external rubber blocks 607. The arc-surface stainless steel clip 608 is clamped At one end of the outer clamping block 606, the inner wall of one end of the connecting shell 601 is fixed with the first inner motor 11 by bolts, the output end of the first inner motor 11 is keyed to the first central bevel gear 12, and one end of the outer screw 603 is keyed to the first peripheral bevel gear 13, the first peripheral bevel gear 13 is meshed with the first central bevel gear 12, the first central bevel gear 12 is driven by the first inner motor 11 to rotate, and then the outer screw 603 is driven to rotate under the action of the meshing of the first central bevel gear 12 and the first peripheral bevel gear 13, so that the slide plate 605 moves along the outer guide rod 604, and then drives the outer clamping block 606 and the outer rubber block 607 to move forward, so that the arc stainless steel clip 608 moves and presses on the outer wall of the cable tube, so as to clamp the cable tube from the outside of the cable tube;

[0033] An inner clamping assembly 7 is provided at one end of the connecting shell 601, and the inner clamping assembly 7 includes a fixed shell 701, which is fixed to one end of the connecting shell 601 by bolts, and a plurality of inner screws 702 are inserted in the circumferential rotation of the fixed shell 701, and an inner clamping block 704 is provided with a threaded sleeve on the outer wall of the inner screw 702, and a plurality of inner guide rods 703 are inserted in the circumference of the fixed shell 701, and the inner clamping block 704 is slidably sleeved with every two inner guide rods 703, and a flat stainless steel clip 706 is clamped at one end of the inner clamping block 704, and inner rubber blocks 705 are bonded to both sides of the inner clamping block 704, and one end of the inner rubber block 705 is bonded to the flat stainless steel clip 706, and a second inner motor 14 is fixed to the inner wall of one side of the connecting shell 601 by bolts, and the second inner motor The output end of 14 is keyed to a connecting shaft 15, one end of the connecting shaft 15 extends into the fixed shell 701 and is keyed to a second center bevel gear 16, one end of the inner screw 702 is keyed to a second peripheral bevel gear 17, the second peripheral bevel gear 17 is meshed with the second center bevel gear 16, the connecting shaft 15 is driven by the second inner motor 14 to rotate, thereby driving the second center bevel gear 16 to rotate, and then driving the inner screw 702 to rotate under the action of the meshing of the second center bevel gear 16 and the second peripheral bevel gear 17, so that the inner clamp 704 moves outward along the inner guide rod 703, and then the flat stainless steel clip 706 contacts the inner wall of the cable tube, thereby tensioning the cable tube from the inside, and then fixing it from the inside of the cable tube.

[0034] One end of the outer rubber block 607 and one end of the inner rubber block 705 are both rotatably connected to a rotating wheel 8, thereby facilitating the contact between the outer clamping assembly 6 and the inner clamping assembly 7 and the cable tube, thereby avoiding damage when clamping the cable tube. One side of the curved stainless steel clip 608 and one side of the flat stainless steel clip 706 are both bonded with an anti-skid pad 9, thereby preventing the curved stainless steel clip 608 and the flat stainless steel clip 706 from sliding when clamping the cable tube. One side of the slide plate 605 is fixed with a connecting rib 10 by bolts, and one side of the connecting rib 10 is fixedly connected to the outer clamp block 606, thereby strengthening the firmness of the connection between the slide plate 605 and the outer clamp block 606.

[0035] Working principle of this embodiment: when in use, first, put one end of the cable tube on the outer side of the multiple inner clamping components 7 of the fixed plate 5, then start the outer motor 19, and the adjusting screw 18 rotates under the drive of the outer motor 19, thereby driving the movable plate 4 to move, and then the multiple inner clamping components 7 of the movable plate 4 are inserted into the other end of the cable tube, then, start the second inner motor 14, and the connecting shaft 15 rotates under the drive of the second inner motor 14, thereby driving the second center bevel gear 16 to rotate, and then the inner screw 702 is driven to rotate under the action of the second center bevel gear 16 and the second outer bevel gear 17 meshing, so that the inner clamping block 704 moves outward along the inner guide rod 703, and then the flat stainless steel clip 706 contacts the inner wall of the cable tube, thereby tensioning the cable tube from the inside, and then fixing it from the inside of the cable tube;

[0036] Then, the first inner motor 11 is started, and the first central bevel gear 12 is rotated under the drive of the first inner motor 11, and then the outer screw 603 is rotated under the action of the meshing of the first central bevel gear 12 and the first outer bevel gear 13, so that the slide plate 605 moves along the outer guide rod 604, and then drives the outer clamping block 606 and the outer rubber block 607 to move forward, so that the arc-surface stainless steel clamping piece 608 moves and presses on the outer wall of the cable tube, thereby clamping the cable tube from the outside of the cable tube;

[0037] After the clamping is completed, the hydraulic cylinder 2 is started, and the sliding seat 3 is moved under the drive of the hydraulic cylinder 2, thereby driving the moving plate 4 to move, and then driving one end of the cable tube to be stretched, so that the cable tube is subjected to a tensile test.

[0038] Example 2

[0039] Reference Figure 7 A cable tube stretching device includes a plurality of electric push rods 20 fixed to the top of a base plate 1 by bolts, and a bearing seat 21 is fixed to the top of the plurality of electric push rods 20 by bolts. The bearing seat 21 moves upward under the drive of the electric push rods 20, thereby driving the cable tube to lift upward, so that the two ends of the cable tube are aligned with the inner clamping components 7 of the movable plate 4 and the fixed plate 5, so as to clamp the cable tube later. The top of the bearing seat 21 is rotatably connected with a plurality of bearing wheels 22, so as to facilitate the placement of the cable tube. The two sides of the top of the bearing seat 21 are fixed to the limiting plates 23 by bolts, so as to limit the cable tube and prevent the cable tube from falling.

[0040] The working principle of this embodiment is as follows: when in use, first, the cable tube is placed on a plurality of load-bearing wheels 22, and then the electric push rod 20 is started. Driven by the electric push rod 20, the load-bearing seat 21 moves upward, thereby driving the cable tube to be lifted upward, and then the two ends of the cable tube are aligned with the inner clamping components 7 of the movable plate 4 and the fixed plate 5, so as to facilitate the subsequent clamping of the cable tube.

[0041] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0042] In the description of this article, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A cable tube stretching device, comprising a bottom plate (1), characterized in that: The top of the base plate (1) is fixedly connected to two hydraulic cylinders (2), one end of the hydraulic rods of the two hydraulic cylinders (2) is fixedly connected to a sliding seat (3), the sliding seat (3) slides on the top of the base plate (1), the bottom inner wall of the sliding seat (3) is slidably connected to a movable plate (4), the top of the base plate (1) is fixedly connected to a fixed plate (5), one side of the fixed plate (5) and the movable plate (4) are fixedly plugged with an external clamping assembly (6), the external clamping assembly (6) includes a connecting shell (601) and a plurality of support plates (602), the two external clamping assemblies ( The connecting shell (601) of the two outer clamping assemblies (6) is fixedly inserted on the movable plate (4) and the fixed plate (5), respectively; the supporting plates (602) of the two outer clamping assemblies (6) are fixedly inserted on the movable plate (4) and the fixed plate (5), respectively; an outer screw rod (603) is rotatably inserted between the supporting plate (602) and the connecting shell (601); a slide plate (605) is threadedly sleeved on the outer wall of the outer screw rod (603); two outer guide rods (604) are fixedly inserted between the supporting plate (602) and the connecting shell (601); the slide plate (605) and the outer guide rod (604) are slidably sleeved, One side of the slide plate (605) is fixedly connected with an outer clamping block (606), and both sides of the outer clamping block (606) are bonded with outer rubber blocks (607), and one end of the two outer rubber blocks (607) is bonded with a curved stainless steel clip (608), and the curved stainless steel clip (608) is clamped at one end of the outer clamping block (606). One end of the connecting shell (601) is provided with an inner clamping component (7), and the inner clamping component (7) includes a fixed shell (701), and the fixed shell (701) is fixed to one end of the connecting shell (601) by bolts. The shell (701) is rotatably plugged with a plurality of inner screws (702), the outer wall of the inner screws (702) is threadedly sleeved with an inner clamping block (704), the fixed shell (701) is circumferentially fixedly plugged with a plurality of inner guide rods (703), the inner clamping block (704) is slidably sleeved with every two inner guide rods (703), one end of the inner clamping block (704) is clamped with a flat stainless steel clip (706), both sides of the inner clamping block (704) are bonded with inner rubber blocks (705), and one end of the inner rubber block (705) is bonded to the flat stainless steel clip (706).

2. A cable tube stretching device according to claim 1, characterized in that: One end of the outer rubber block (607) and one end of the inner rubber block (705) are both rotatably connected to a rotating wheel (8).

3. A cable tube stretching device according to claim 1, characterized in that: One side of the curved stainless steel clip (608) and one side of the flat stainless steel clip (706) are both bonded with an anti-slip pad (9).

4. A cable tube stretching device according to claim 1, characterized in that: One side of the slide plate (605) is fixedly connected to a connecting rib (10), and one side of the connecting rib (10) is fixedly connected to an outer clamping block (606).

5. The cable tube stretching device according to claim 1, characterized in that: The inner wall of one end of the connecting shell (601) is fixedly connected to the first inner motor (11), the output end of the first inner motor (11) is key-connected to the first central bevel gear (12), one end of the external screw (603) is key-connected to the first peripheral bevel gear (13), and the first peripheral bevel gear (13) is meshed with the first central bevel gear (12).

6. A cable tube stretching device according to claim 1, characterized in that: A second inner motor (14) is fixedly connected to an inner wall of one side of the connecting shell (601); an output end of the second inner motor (14) is keyed to a connecting shaft (15); one end of the connecting shaft (15) extends into the fixed shell (701) and is keyed to a second central bevel gear (16); one end of the inner screw (702) is keyed to a second peripheral bevel gear (17); and the second peripheral bevel gear (17) is meshed with the second central bevel gear (16).

7. A cable tube stretching device according to claim 1, characterized in that: An external motor (19) is fixedly connected to the outer wall of one end of the sliding seat (3); an adjusting screw (18) is key-connected to the output end of the external motor (19); the other end of the adjusting screw (18) is rotatably connected to the inner wall of one end of the sliding seat (3); and the movable plate (4) is threadedly sleeved with the adjusting screw (18).

8. The cable tube stretching device according to claim 1, characterized in that: The top of the base plate (1) is fixedly connected to a plurality of electric push rods (20), the tops of the plurality of electric push rods (20) are commonly fixedly connected to a bearing seat (21), the top of the bearing seat (21) is rotatably connected to a plurality of bearing wheels (22), and both sides of the top of the bearing seat (21) are fixedly connected to limiting plates (23).

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