Double-roller differential transmission mechanism of tensioner

Abstract

The utility model discloses a double-roller differential transmission mechanism of a tensioner, which comprises a shell, two rotating shafts are rotatably mounted in the shell, each rotating shaft is in key connection with two transmission cone discs in a sliding manner, a reset spring is arranged between the two transmission cone discs, a transmission belt is arranged between the two rotating shafts, the transmission belt is positioned between the two transmission cone discs, and the two transmission cone discs are connected with the reset spring. Adjusting screws are rotatably installed on the shell, the two adjusting screws rotatably penetrate through the rotating shafts respectively, the two ends of each adjusting screw are in threaded connection with adjusting blocks, the adjusting blocks are slidably installed on the shell, one ends of the adjusting blocks abut against the transmission conical disc, the two rotating shafts are connected to rotating rollers of the tensioner respectively, and the adjusting screws are connected with driving parts. According to the tension machine, the transmission conical disc, the transmission belt part, the adjusting screw rod and the adjusting block part are arranged, so that when the tension machine is used, the speed difference of the two rotating rollers can be adjusted by rotating the adjusting screw rod, and then the torsion condition of a multi-core cable can be relieved conveniently.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of cable tension machine relates to a kind of double roller differential transmission mechanism of tension machine. BACKGROUND

[0002] Cable tension machine, also called tensioning machine, is a kind of equipment used for providing suitable tension for cable in power installation. The tension machine has two rotating rollers, and the cable is spirally wound on the rotating rollers. One of the rotating rollers is connected to a rotating drive, which drives the cable to rotate.

[0003] During use, the multi-core cable may be twisted to some extent during transmission, which may cause deformation of the insulation layer. In actual operation, the speed difference between the two rotating rollers can be adjusted to reduce the twisting, but there is currently a lack of device for adjusting the speed of the rotating rollers. UTILITY MODEL CONTENT

[0004] To solve the above problems, the utility model provides a double roller differential transmission mechanism of tension machine, which solves the problems in the prior art.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A double roller differential transmission mechanism of tension machine, comprising:

[0007] A housing is fixedly installed on the tension machine.

[0008] Two rotating shafts are rotatably installed on the housing.

[0009] Two transmission cones are slidably keyed connected to the rotating shafts, and the small diameter ends of the transmission cones are oppositely arranged. A return spring is arranged between the two transmission cones.

[0010] A transmission belt connects the two rotating shafts, and is located between the two transmission cones.

[0011] Two adjusting screws are rotatably installed on the housing, and the two adjusting screws are rotatably penetrated through the rotating shafts. The screw threads on the two ends of the adjusting screw are opposite in direction.

[0012] Two adjusting blocks are threadedly connected to the two ends of the adjusting screw, and are slidably installed on the housing. One end of the adjusting block abuts against the transmission cone.

[0013] Two transmission gear sets are connected to the input ends of the two transmission gear sets, and the output ends of the transmission gear sets are connected to the rotating rollers of the tension machine.

[0014] A driving member is fixedly connected to the output end of the adjusting screw.

[0015] Optionally, the synchronous bevel gear set is fixedly connected to one end of the rotating shaft, and the input ends of the two synchronous bevel gear sets are connected with the same synchronous rod.

[0016] Optionally, the adjusting block comprises a sliding section slidably connected to the shell, the sliding section is fixedly connected with a threaded section threadedly connected to the adjusting screw, the threaded section is fixedly connected with a pushing section, and the pushing section abuts against the transmission cone disc.

[0017] Optionally, a ball bearing is arranged between the pushing section and the transmission cone disc.

[0018] Optionally, the two sides of the transmission belt are inclined surfaces, and the inclined surfaces are attached to the conical surface of the transmission cone disc.

[0019] Optionally, the driving member comprises a speed reducer, and the input end of the speed reducer is connected with a manual rotating wheel.

[0020] Compared with the prior art, the tensioner has the following beneficial effects:

[0021] 1. When the adjusting screw rotates, the adjusting block pushes the two transmission cone discs to approach, or the reset spring pushes the two transmission cone discs to move away, so as to change the position of the transmission belt on the transmission cone disc, and further change the speed ratio of the two rotating shafts, so that the tensioner can adjust the speed difference of the two rotating rollers by rotating the adjusting screw when in use, and further facilitate the relief of the twisting of the multi-core cable.

[0022] 2. When adjusting the differential speed, one group of transmission cone discs slides to approach, and the other group of transmission cone discs should synchronously slide to move away, so that the synchronous bevel gear set and the synchronous rod are arranged, so that one driving member is used to synchronously control the two adjusting screws to adjust, and the adjustment is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a schematic diagram of the installation state of the embodiment of the utility model;

[0024] Figure 2 is a schematic diagram of the internal structure of the embodiment of the utility model.

[0025] Mark: 1, shell; 2, rotating shaft; 3, transmission cone disc; 31, reset spring; 32, transmission belt; 41, adjusting screw; 42, adjusting block; 421, sliding section; 422, threaded section; 423, pushing section; 5, transmission gear set; 51, driving member; 511, speed reducer; 512, manual rotating wheel; 61, synchronous bevel gear set; 62, synchronous rod. DETAILED DESCRIPTION

[0026] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0027] Please refer to Figure 1 With Figure 2 The double-roller differential transmission mechanism of the tension machine disclosed in the embodiments of the present application comprises a shell 1, the shell 1 is fixedly installed on the tension machine, two rotating shafts 2 are rotatably installed in the shell 1, two transmission cone discs 3 are slidably and key-connected to the rotating shafts 2, the transmission cone discs 3 are oppositely arranged at small-diameter ends, a return spring 31 is arranged between the two transmission cone discs 3, a transmission belt 32 is arranged between the two rotating shafts 2, the transmission belt 32 connects the two rotating shafts 2, the transmission belt 32 is located between the two transmission cone discs 3, the shell 1 is rotatably installed with two adjusting screws 41, the two adjusting screws 41 are rotatably penetrated through the rotating shafts 2 respectively, the screw threads at two ends of the adjusting screws 41 are opposite in screwing direction, adjusting blocks 42 are threadedly connected to the two ends of the adjusting screws 41 respectively, the adjusting blocks 42 are slidably installed on the shell 1, one end of the adjusting block 42 abuts against the transmission cone disc 3, the two rotating shafts 2 are connected with a transmission gear set 5, output ends of the transmission gear set 5 are connected to rotating rollers of the tension machine respectively, and the adjusting screw 41 is connected with a driving member 51.

[0028] Specifically, the transmission cone discs 3 are arranged in the shell 1, the transmission belt 32 is arranged between the transmission cone discs 3, a belt transmission structure is formed by the four transmission cone discs 3 and the transmission belt 32, the transmission cone discs 3 are slidably installed on the rotating shafts 2, the return spring 31 is arranged between the two transmission cone discs 3, one end of the transmission cone disc 3 away from the return spring 31 abuts against the adjusting block 42, and the adjusting block 42 is threadedly connected to the adjusting screw 41. When the adjusting screw 41 is rotated, the adjusting block 42 pushes the two transmission cone discs 3 to be close to each other, or the return spring 31 pushes the two transmission cone discs 3 to be away from each other, the position of the transmission belt 32 on the transmission cone discs 3 is changed, and then the speed ratio of the two rotating shafts 2 is changed.

[0029] In this way, by arranging the transmission cone discs 3, the transmission belt 32, the adjusting screw 41 and the adjusting block 42, when the tension machine is used, the speed difference of the two rotating rollers can be adjusted by rotating the adjusting screw 41, and then the relief of the multi-core cable twisting condition can be conveniently realized.

[0030] In some possible implementation manners, the shell 1 is a protective shell according to actual component installation positions, and the shell 1 is fixedly installed on a machine body of the tension machine by screw connection or the like. The shell 1 includes two symmetrical half shells which are fixedly connected by screwing. The rotating shaft 2 is a circular pipe provided with a spline on an outer side. The two transmission cone discs 3 are provided with a conical surface at one end close to each other. The reset springs 31 are arranged at two ends of the transmission cone discs 3. The adjusting screw rods 41 penetrate the rotating shaft 2. The rotating shaft 2 is provided with two bearing seats at two ends, respectively, for supporting the rotating shaft 2 and the adjusting screw rods 41. The adjusting screw rods 41 are also provided with bearing seats at ends. The adjusting blocks 42 are threadedly connected to the adjusting screw rods 41 and are slidably connected to the shell 1 so that the adjusting blocks 42 cannot rotate. The transmission gear set 5 includes at least two gears. One of the gears is installed on the rotating shaft 2. The transmission gear set 5 facilitates connection between the rotating shaft 2 and the rotating roller. The driving member 51 can be manually driven or driven by a motor or the like.

[0031] In some possible implementation manners, the transmission gear set 5 can also be provided with a manual clutch. The differential transmission mechanism is disconnected from the rotating roller when not in use, reducing use loss and improving service life.

[0032] In some possible implementation manners, in order to facilitate better transmission, the transmission belts 32 are provided with inclined surfaces on two sides, which are matched with the conical surfaces of the transmission cone discs 3.

[0033] As a specific embodiment of the differential transmission mechanism of the double-roller tension machine provided by the application, the rotating shaft 2 is fixedly connected with a synchronous bevel gear set 61 at one end. The two synchronous bevel gear sets 61 are connected with the same synchronous rod 62 at input ends.

[0034] Overall, when adjusting the differential speed, one set of transmission cone discs 3 slides close, and the other set of transmission cone discs 3 should synchronously slide away. By arranging the synchronous bevel gear set 61 and the synchronous rod 62, one driving member 51 is used to synchronously control the two adjusting screw rods 41 to adjust, facilitating adjustment.

[0035] In some possible implementation manners, the synchronous bevel gear set 61 includes an outer shell. At least two meshing bevel gears are arranged in the outer shell. The synchronous rod 62 is fixedly connected with the bevel gears away from the rotating shaft 2 in the two synchronous bevel gear sets 61 at two ends.

[0036] As another specific embodiment of the differential transmission mechanism of the double-roller tension machine provided by the application, the adjusting block 42 includes a sliding segment 421 slidably connected to the shell 1. The sliding segment 421 is fixedly connected with a threaded segment 422 threadedly connected to the adjusting screw rod 41. The threaded segment 422 is fixedly connected with a pushing segment 423 abutting against the transmission cone disc 3.

[0037] In some possible manners, the sliding section 421 is a round pipe provided with a spline on the outer side, the shell 1 is fixedly provided with a fixing block, the fixing block is provided with a spline hole, the sliding section 421 is installed in the spline hole, the threaded section 422 is a round disc provided with a thread on the inner side, and at least two cylinders as the pushing sections 423 are circumferentially arranged at an end of the threaded section 422 away from the sliding section 421. In order to reduce the friction between the transmission cone disc 3 and the cylinders, ball bearings are fixedly installed at the end of the pushing sections 423.

[0038] As another specific embodiment of the double-roller differential transmission mechanism of the tension machine provided in the application, the driving member 51 comprises a reduction gearbox 511, and the input end of the reduction gearbox 511 is connected with a manual rotating wheel 512.

[0039] It should be understood that, by arranging the reduction gearbox 511, manual rotation for adjustment is facilitated.

[0040] In some possible manners, the reduction gearbox 511 can be selected from gear reduction, worm reduction and other reduction gearbox structures in the prior art, and details are not repeated here.

[0041] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A differential drive mechanism for a double roll tensioner, characterized by, Include: The shell (1) is fixedly installed on the tension machine; Rotary shaft (2), two said rotary shaft (2) is rotatably mounted on the shell (1); Transmission cone disc (3), the rotary shaft (2) is slidably keyed connected with two transmission cone disc (3), the transmission cone disc (3) small diameter end opposite arrangement, two transmission cone disc (3) between reset spring (31) is provided; Transmission belt (32), the transmission belt (32) is connected with two said rotary shaft (2), the transmission belt (32) is located between two said transmission cone disc (3); Adjusting screw (41), the adjusting screw (41) is rotatably mounted on the shell (1), two said adjusting screw (41) is rotatably penetrated through the rotary shaft (2), the adjusting screw (41) both ends screw thread direction is opposite; Adjusting block (42), two said adjusting block (42) is respectively threaded on both ends of the adjusting screw (41), the adjusting block (42) is slidably mounted on the shell (1), the adjusting block (42) one end is against the transmission cone disc (3); Transmission gear set (5), two said rotary shaft (2) is connected to two transmission gear set (5) input, the transmission gear set (5) output is connected to the rotary roller of tension machine respectively; Driving member (51), the output end of the driving member (51) is fixedly connected with the adjusting screw (41).

2. The differential drive mechanism of claim 1, wherein: The rotary shaft (2) one end fixedly connected with synchronous bevel gear set (61), two said synchronous bevel gear set (61) input end is connected with the same synchronous rod (62).

3. The differential drive mechanism of claim 1, wherein: The adjusting block (42) includes a sliding section (421) slidably connected to the shell (1), the sliding section (421) is fixedly connected with a threaded section (422) threaded on the adjusting screw (41), the threaded section (422) is fixedly connected with a push section (423), the push section (423) is against the transmission cone disc (3).

4. The differential drive mechanism of claim 3, wherein: Ball bearing is arranged between the push section (423) and the transmission cone disc (3).

5. The differential drive mechanism of claim 1, wherein: The transmission belt (32) two sides are inclined surface, the inclined surface fits the conical surface of the transmission cone disc (3).

6. The dual roller differential mechanism of a tensioner of claim 1, wherein: The driving member (51) includes a reduction box (511), the input end of the reduction box (511) is connected with a manual rotating wheel (512).

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