Speed chain tensioning device

Abstract

The utility model discloses a speed chain tensioning device which comprises a machine frame and speed chain bodies, two sets of speed chain bodies are arranged at the top end of the machine frame, speed chain wheels are arranged in the machine frame on one side of the machine frame, supporting shafts are installed at the center positions of the speed chain wheels, and the supporting shafts are connected with the speed chain wheels. And adjusting frames are installed in the portions, on one sides of the supporting shafts, of the machine frame, the adjusting frames are fixedly connected with the machine frame, sliding rail frames are installed at the top ends of the adjusting frames in a sliding mode, a tensioning box is fixed to the top ends of the sliding rail frames, the supporting shafts extend to the outer portion of the tensioning box, and lengthened sliding grooves are formed in the portions, on one sides of the supporting shafts, of the outer wall of the tensioning box. According to the utility model, the convenient elastic tensioning support of the speed chain tensioning device is realized, the tensioning support can be conveniently carried out by adjusting to a proper force, the conveying stagnation caused by over-conveying or over-tightening of the speed chain is prevented, and the stability of the speed chain tensioning device during tensioning is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tensioning devices, in particular to a multiple-speed chain tensioning device. Background Art

[0002] The double-speed chain conveyor equipment can achieve efficient material transportation. Through the transmission effect of the chain, it can transfer the material to the position, which will greatly improve the transportation efficiency of the material. Whether it is solid material or liquid material, the double-speed chain conveyor equipment can quickly and smoothly transport it to a fixed target location. This is very important for material handling and distribution in the production process, which can save time and labor costs. The double-speed chain conveyor equipment will be widely used in many industries, such as metallurgy, chemical industry, building materials, etc.

[0003] For example, a double-speed chain tensioning device disclosed in the authorization announcement number CN220431289U includes a base, a working box and an adjusting component, wherein a working box is fixedly installed on the top of the base, an adjusting component is movably installed inside the working box, and an adjusting component is movably installed inside the working box, and the tensioning position and strength are changed by the adjusting component to facilitate the transportation and movement of the double-speed chain. The adjusting component includes a telescopic cylinder, an adjusting plate, a mounting bracket, a tensioning wheel, a telescopic column and a spring, and a telescopic cylinder is fixedly installed inside the base;

[0004] Although it can make the elastic part in a pre-compression state, so that the tension of the double-speed chain is in a dynamic adjustment state, through the mutual cooperation between the telescopic cylinder, the adjustment plate, the mounting bracket, the tensioning wheel, the telescopic column and the spring, the telescopic cylinder drives the adjustment plate to rise and fall, and the adjustment plate drives the tensioning wheel to rise and fall, the tension of the double-speed chain can realize automatic adjustment within a certain range;

[0005] However, the problem that such existing tensioning devices are generally not conducive to convenient elastic tensioning support during use, and are not easy to adjust to a suitable force for tensioning support, and over-feeding or over-tightening of the speed chain can easily cause conveying stagnation, which greatly affects the stability of the speed chain tensioning device during tensioning and the convenience of control and adjustment. Utility Model Content

[0006] The purpose of the utility model is to provide a double-speed chain tensioning device to solve the problems proposed in the above-mentioned background technology that the tensioning device is not convenient for elastic tensioning support, is not convenient for adjusting to a suitable force for tensioning support, and the double-speed chain is easily over-delivered or over-tightened to cause conveying stagnation, affecting the stability of the double-speed chain tensioning device during tensioning and the convenience of control and adjustment.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a double-speed chain tensioning device, comprising a frame and a double-speed chain body, two groups of double-speed chain bodies are arranged at the top of the frame, double-speed sprockets are arranged inside the frame on one side of the frame, support shafts are installed at the center position of the double-speed sprockets, adjustment frames are installed inside the frame on one side of the support shaft, and the adjustment frames are fixedly connected to the frame, a slide rail frame is slidably installed on the top of the adjustment frame, a tensioning box is fixed on the top of the slide rail frame, and the support shaft extends to the outside of the tensioning box, an extended slide groove is arranged on the outer wall of the tensioning box on one side of the support shaft, a pulley is mounted on the surface of the support shaft on one side of the extended slide groove, and the pulley is slidably connected to the extended slide groove, a slider is movably mounted on the surface of the support shaft on one side of the pulley, and the slider is slidably connected to the tensioning box, and a spring is installed on the side wall of the slider.

[0008] Preferably, a support block is installed inside the tension box on one side of the spring, and the support block extends to the outside of the tension box.

[0009] Preferably, a slide groove frame is installed on the top of the adjustment frame below the slide rail frame, and the slide groove frame is slidably connected to the slide rail frame.

[0010] Preferably, a rack is installed on the outer wall of the slide rail frame, a rotating shaft is installed inside the adjustment frame on one side of the rack, a gear is mounted on the surface of the rotating shaft, and the gear and the rack are meshed with each other.

[0011] Preferably, a worm gear is mounted on the surface of the rotating shaft below the gear, a servo motor is mounted on the top of the adjustment frame on one side of the worm gear, and a power shaft is mounted on the output end of the servo motor.

[0012] Preferably, a worm is installed at one end of the power shaft away from the servo motor, and the worm is meshed with the worm wheel.

[0013] Compared with the prior art, the beneficial effects of the utility model are: the tensioning device not only realizes the convenient elastic tensioning support of the double-speed chain tensioning device, but also facilitates the adjustment to the appropriate force for tensioning support, prevents the double-speed chain from over-delivering or over-tightening causing conveying stagnation, and improves the stability of the double-speed chain tensioning device during tensioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 It is a schematic diagram of a three-dimensional enlarged structure of a spring of the utility model;

[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of the adjustment frame of the utility model;

[0017] Figure 4It is a schematic diagram of the three-dimensional structure of the rack of the utility model;

[0018] Figure 5 It is a schematic diagram of an enlarged front cross-sectional structure of the slider of the utility model.

[0019] In the figure: 1. frame; 2. double-speed chain body; 3. double-speed sprocket; 4. pulley; 5. tensioning box; 6. support shaft; 7. adjustment frame; 8. slide frame; 9. slide rail frame; 10. support block; 11. slider; 12. spring; 13. rack; 14. power shaft; 15. gear; 16. worm; 17. servo motor; 18. worm wheel; 19. rotating shaft; 20. extended slide. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-5 The utility model provides an embodiment: a double-speed chain tensioning device, comprising a frame 1 and a double-speed chain body 2, two groups of double-speed chain bodies 2 are arranged on the top of the frame 1, double-speed sprockets 3 are arranged inside the frame 1 on one side of the frame 1, and support shafts 6 are installed at the center of the double-speed sprockets 3, and adjusting frames 7 are installed inside the frame 1 on one side of the support shaft 6, and the adjusting frames 7 are fixedly connected to the frame 1, and a slide rail frame 9 is slidably installed on the top of the adjusting frame 7, and a tensioning box 5 is fixed on the top of the slide rail frame 9, and the support shaft 6 extends to the outside of the tensioning box 5, and an extended slide groove 20 is arranged on the outer wall of the tensioning box 5 on one side of the support shaft 6, and a pulley 4 is mounted on the surface of the support shaft 6 on one side of the extended slide groove 20, and the pulley 4 is slidably connected to the extended slide groove 20, and a slider 11 is movably mounted on the surface of the support shaft 6 on one side of the pulley 4, and the slider 11 is slidably connected to the tensioning box 5, and a spring 12 is installed on the side wall of the slider 11;

[0022] A support block 10 is installed inside the tension box 5 on one side of the spring 12, and the support block 10 extends to the outside of the tension box 5;

[0023] With the support of the tensioning box 5 on the support block 10, the support block 10 supports the spring 12, the spring 12 elastically supports the slider 11, the slider 11 drives the support shaft 6 to slide, the support shaft 6 drives the pulley 4 to move, the pulley 4 slides inside the extended slide groove 20, the support shaft 6 drives the double-speed sprocket 3 to move, the double-speed sprocket 3 plays a role of elastic tensioning on the double-speed chain body 2, when the tension size needs to be adjusted, a convenient elastic tensioning support of the double-speed chain tensioning device is realized, and the stability of the double-speed chain tensioning device when tensioning is improved;

[0024] A slide groove frame 8 is installed on the top of the adjustment frame 7 below the slide rail frame 9, and the slide groove frame 8 is slidably connected to the slide rail frame 9;

[0025] A rack 13 is installed on the outer wall of the slide rail frame 9, and a rotating shaft 19 is installed inside the adjustment frame 7 on one side of the rack 13. A gear 15 is mounted on the surface of the rotating shaft 19, and the gear 15 and the rack 13 are meshed with each other;

[0026] A worm gear 18 is mounted on the surface of the rotating shaft 19 below the gear 15. A servo motor 17 is mounted on the top of the adjusting frame 7 on one side of the worm gear 18. The servo motor 17 plays a role of power drive, and a power shaft 14 is mounted on the output end of the servo motor 17.

[0027] A worm 16 is mounted on one end of the power shaft 14 away from the servo motor 17, and the worm 16 is meshed with a worm wheel 18;

[0028] By turning on the servo motor 17, the servo motor 17 drives the power shaft 14 to rotate, the power shaft 14 drives the worm 16 to rotate, and the worm 16 and the worm wheel 18 cooperate to drive the worm wheel 18 to rotate, the worm wheel 18 drives the rotating shaft 19 to rotate, the rotating shaft 19 drives the gear 15 to rotate, and the gear 15 and the rack 13 cooperate to drive the rack 13 to move, the rack 13 drives the slide rail frame 9 to slide on the surface of the slide groove frame 8, the slide rail frame 9 drives the tensioning box 5 to move, the tensioning box 5 drives the support block 10 and the spring 12 to move, to adjust the compression distance of the spring 12, to facilitate the adjustment of the tension size, to achieve the convenient control of the tension size of the double-speed chain tensioning device, to facilitate the adjustment to the appropriate force for tension support, to prevent the double-speed chain from over-delivering or over-tightening to cause conveying stagnation.

[0029] When the embodiment of the present application is in use: an external power supply is connected, first, under the support of the tensioning box 5 on the support block 10, the support block 10 supports the spring 12, and the spring 12 elastically supports the slider 11, and the slider 11 drives the support shaft 6 to slide, and the support shaft 6 drives the pulley 4 to move, and the pulley 4 slides inside the extended slide groove 20, and the support shaft 6 drives the double-speed sprocket 3 to move, and the double-speed sprocket 3 plays a role of elastic tensioning on the double-speed chain body 2, the servo motor 17 drives the power shaft 14 to rotate, the power shaft 14 drives the worm 16 to rotate, the worm gear 18 drives the rotating shaft 19 to rotate, and the rotating shaft 19 drives the gear 15 to rotate, and the rack 13 drives the slide rail frame 9 to slide on the surface of the slide groove frame 8, the slide rail frame 9 drives the tensioning box 5 to move, and the tensioning box 5 drives the support block 10 and the spring 12 to move, to adjust the compression distance of the spring 12, to facilitate the adjustment of the tension size, and to complete the use of the tensioning device.

Claims

1. A double-speed chain tensioning device, characterized in that: The invention comprises a frame (1) and a double-speed chain body (2), wherein two sets of double-speed chain bodies (2) are arranged at the top of the frame (1), a double-speed sprocket (3) is arranged inside the frame (1) on one side of the frame (1), a support shaft (6) is installed at the center of the double-speed sprocket (3), an adjustment frame (7) is installed inside the frame (1) on one side of the support shaft (6), and the adjustment frame (7) is fixedly connected to the frame (1), a slide rail frame (9) is slidably installed at the top of the adjustment frame (7), and the top of the slide rail frame (9) is fixedly connected to the frame (1), and a slide rail frame (9) is installed on the top of the adjustment frame (7). There is a tension box (5), and the support shaft (6) extends to the outside of the tension box (5); an extended slide groove (20) is arranged on the outer wall of the tension box (5) on one side of the support shaft (6); a pulley (4) is mounted on the surface of the support shaft (6) on one side of the extended slide groove (20), and the pulley (4) is slidably connected to the extended slide groove (20); a slider (11) is movably mounted on the surface of the support shaft (6) on one side of the pulley (4), and the slider (11) is slidably connected to the tension box (5); a spring (12) is installed on the side wall of the slider (11).

2. A double-speed chain tensioning device according to claim 1, characterized in that: A support block (10) is installed inside the tension box (5) on one side of the spring (12), and the support block (10) extends to the outside of the tension box (5).

3. A double-speed chain tensioning device according to claim 1, characterized in that: A slide groove frame (8) is installed on the top of the adjustment frame (7) below the slide rail frame (9), and the slide groove frame (8) is slidably connected to the slide rail frame (9).

4. The double-speed chain tensioning device according to claim 1, characterized in that: A rack (13) is installed on the outer wall of the slide rail frame (9), a rotating shaft (19) is installed inside the adjustment frame (7) on one side of the rack (13), a gear (15) is mounted on the surface of the rotating shaft (19), and the gear (15) and the rack (13) are meshed with each other.

5. A multiple-speed chain tensioning device according to claim 4, characterized in that: A worm gear (18) is mounted on the surface of a rotating shaft (19) below the gear (15), a servo motor (17) is mounted on the top of an adjustment frame (7) on one side of the worm gear (18), and a power shaft (14) is mounted on the output end of the servo motor (17).

6. A multiple-speed chain tensioning device according to claim 5, characterized in that: A worm (16) is installed at one end of the power shaft (14) away from the servo motor (17), and the worm (16) and the worm wheel (18) are meshed with each other.

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